ES2237218B1 - MULTIPLE USE, MULTIPLE LEVEL CONVERTIBLE GAMES PARK. - Google Patents

Abstract

Multipurpose convertible playground, multi-level.

A playpen (10) that easily converts into a bathtub, changing table, or bedside crib or "bunk" that attaches securely to the parents' bed (262). A second enclosure support system (250) maintains a padded enclosure (222) and a rigid floor panel (358) at one or more predetermined levels (218) below the top (18) of the playground ( 10) to form the bathtub and the bunk. The second enclosure (222) has a rear, two sides, a bottom, and a front flap (362) that becomes a front wall (234) for use in bathtub mode and protrudes from the front horizontal rail (50 ) for use in bunk mode. The upper front corners (66), (70) are segmented into a mobile section (178), (182) and a fixed section (174), (186) to facilitate lowering the front horizontal rail (50) to at least one second lower position (218) to allow various heights of the parent's bed. Fixed section extensions (210), (214) are attached to front vertical rails (114), (118) and accept movable sections (178), (182) in various positions to secure rail (50) in the second positions (218). Support means (250), padded enclosure (22) and rigid floor panel (358) complete the changing table with the edges of the front flap (262) secured to the edges of the side walls. The playground (10) is

placed adjacent to parents' bed (262) for use as a bunk bed. Means are provided to ensure the loose flap material (263) to the front (26) of the bunk. For use as a bunk bed, the reinforcement straps (258) secure the unit to the parent's bed (262) and prevent movement. The unit folds easily with its components in a compact carrying case for transporting and storage. The first enclosure (14) comprises a floor panel (130) with a floor reinforcing panel (142) substantially coextensive with the floor panel (130), fixedly mounted to the itself, and having clamping portions (158), (166) which are fixed to a part of the rigid frame (46), the first enclosure (14).

Description

Multipurpose convertible playground, multi-level.

Related requests

This application is related to the Patent of United States No. 5,845,349, filed on December 8, 1998.

Field of the invention

The present invention relates to the field of convertible units for use with infants and very young children; in particular, to units that can easily be converted into a playground, bathtub, changing table, or enclosure for sleeping on the side of the child's bed, referred to here in forward, for convenience, as a "bunk", which is fixed safely to parent's bed.

Background of the invention

Playgrounds and playgrounds for babies and young children are well known and many variations over years. Low portable cribs have been also used as playgrounds. For reasons of economy and conservation of space, it has been practical to find uses extras for playgrounds, such as bathtubs and tables of molting, if such additional uses can be achieved through easy alterations or adjustments that are reversible.

In US Patent No. 2,548,769, Burgin describes a lowered crib for use as a playpen. Shamie , in US Patent 5,339,479 describes a portable playground that can be converted to a changing table by adding an upper tier using zippers to secure the upper tier in place. Multiple levels of zipper teeth provide different height for the top floor. In US Patent No. 5,553,336, Maríol adds an upper level to a playground to provide a bathtub. The short legs of the upper tier are inserted into openings in the upper part of the vertical supports of the playground. Saldana , in US Patent No. 2,691,176 describes a unit designed for the home and for travel, which can be used as a support for a playpen, bathtub or baby chair. US Patent No. 5,581,827 to Fong et al . Describes a foldable playground unit.

Attached cribs that attach to a parent's bed became known at the turn of the century (US Patent Nos. 5,548,005; 620,069; 1,138,451; 1,283,169; 1,267,244), but lost acceptance for many years . Recently, there has been a resurgence in the practice of having babies sleeping adjacent to the parents' bed. Such bedside cribs are shown in US Patent No. 5,172,435 to Griffin et al ., In US Patent No. 5,293,655 to Van Winkle et al ., And to the present inventors Tharalson et al ., US Patent No. 5,148,561.

An object of the present invention is provide a single unit that, with quick adjustments and easy, can be adapted for different uses, including a playground, a bathtub, a changing table and a bunk bed.

Another objective of the present invention is provide a unit that can be converted to a bunk, which is an improvement over the prior art, which rests on four legs, that it will not rise, tilt or sag and is attached to the parent's bed with a safety strap so that it cannot move out of bed.

An additional objective is to provide a bunk that can be adapted to both the heights of American beds as European, including means of fixing the bunks to the beds of both heights. Means should be provided to allow the bunk mattress to be positioned at heights within the bunk suitable for placement adjacent to both American and European bed surfaces. Similarly, means should be provided for adjusting the mattress cover to minimize any excess fabric when changing American and European mattress height adjustments.

Another objective of the present invention is allow conversion to a bunk at the same time as still maintains the stability of the unit by re-positioning of the front horizontal rail. Such re-placement should be provided for both American and European bed heights.

A still additional objective of the present invention is that the bunk is adjacent to the parents' bed, but at a level below the level of the parents' bed and with a stretch of cloth that covers the gap so that it does not there is a possibility that the baby could be harmed. Another goal of the present invention is to provide means for adjusting the bunk height to accommodate different heights of the bed. A still further objective of the present invention is provide a safe washable enclosure for the baby.

Another objective of the present invention is provide a playground, in which a baby can be cared for by a caregiver who is physically handicapped. A A further objective of the present invention is to provide a unit that folds up easily for storage and transport.

A still further object of the invention is provide a playground with flooring that can withstand the repeated jumping and rough play by an infant or toddler without subsidence or risk of breakage. The plant should be built made of mesh material to prevent accidental suffocation of a baby or small child who might find his way under the mattress of the bunk.

Still another objective is to provide an easily convertible playground that includes mechanisms strong, secure latches for the support elements of the playground. Such mechanisms should unite the elements of securely on site and yet should be easy and simple to release when needed.

Still another object of the invention is to provide simple adjustments regarding the height of the front wall of the bunk while preventing the injury to the little fingers that could get into the openings in the adjustment mechanism.

Another goal is to minimize any fabric associated with the bunk mattress that could cause the conceivable suffocation of an infant or toddler.

Still another object of the invention is provide increased structural strength of the bunk, while adding an attractive design feature, including a removable canopy cover for the invention.

Other characteristics and advantages of the invention will be noted from the description and drawings following.

Summary of the invention

The present invention is a playground convertibly adapted for use as a bathtub, coffee table mute and bunk. The playground includes a first rigid enclosure with an open top, a plant, a front wall, a rear wall, a first side wall and a second wall side. The enclosure is of a first predetermined height and has a rigid frame.

The frame is formed at the top by front and rear upper parallel horizontal rails, first and second lateral horizontal rails, two elements front upper corner elements and two corner elements upper rear in cooperation with them. The frame is formed adjacent to the ground by parallel horizontal rails lower front and rear, first and second lanes lateral, horizontal, parallel, bottom and four elements lower corner leg in cooperation with them. A couple of front vertical lanes and a pair of lanes rear verticals are in further cooperation with the two upper front corner elements, the two elements of upper rear corner and the four leg elements lower corner. The rigid frame supports the floor, the wall front, rear wall, first side wall and second side wall.

The floor additionally includes a floor panel fixed to the first and second front and rear walls. He floor panel has a top surface and a surface lower. A floor reinforcement panel is provided. Panel reinforcement has substantially the same plane dimensions as the floor panel and has a top surface, a surface bottom, a perimeter and at least four clamping portions that extend outward from the perimeter. Reinforcing panel is fixedly attached on its upper surface to the surface bottom of the floor panel. The clamping portions are fixedly attached to each of the parallel horizontal rails lower front and rear and the first and second lower, lateral parallel horizontal rails.

Each top front corner element is forming of two complementary sections that can be separated from reversible shape. The first of these sections is attached securely to one end of the front upper horizontal rail and the second of these sections is fixedly attached to the end top of one of the front vertical rails. The upper front corner elements support rail upper front horizontal in its first position.

The receiving means are fixedly attached to each front vertical rail to receive the first section of an upper front corner element and to keep in shape the upper front horizontal rail reversible in at least one second lower position, thus maintaining rigidity structural of the playground when the horizontal lane top striker is in one of the second positions.

A second enclosure is provided. The second enclosure is sized to fit substantially within of the first enclosure and has an open top, a wall rear, a front wall, first and second side walls and a lower part. Means are provided to support in a way separable the second enclosure within the first enclosure at least a predetermined distance from the top of the first enclosure.

A safety strap assembly is provided for attachment to a parent's bed, together with at least one pair of means of alignment through which it is directed the safety strap assembly. These means of alignment keep the safety strap assembly in orientation horizontal and prevent elevation or buckling of the playground when used as a bunk bed. At least one is planned pair of attachment means for holding the strap assembly security to the playground.

The playground is prepared for use as a bunk when the upper front horizontal rail is in one of the second positions, the second enclosure is supported by the support means of the second enclosure, the set of safety strap is directed through one of the means of alignment, fixed to one of the fixing means and is positioned and adequately secured to the parents' bed.

In a variant of the invention, the means for releasably supporting the second enclosure within the first enclosure at least a predetermined distance from the part top of the first enclosure, additionally include first, second, third and fourth support hangers. Each of the Support hangers have a first end, a second end, a inner side and one outer side. Each of the hangers bracket has a curved latch portion located on the first extreme.

The latch portion is sized and configured to friction fit over the first enclosure and one of the first or second horizontal side rails superiors. Each of the support hangers includes additionally at least two circular holes. The holes are extend from the inner side to the outer side of the hangers. The hangers also include at least two spring buttons. The accommodations are placed on the outer sides of the support hangers adjacent to the holes. Each of the spring button housings includes a finger opening.

Two support bars are provided. Each of the bars has a first end and a second end. The bars are sized and configured to extend between a of the first and second support hangers and one of the third and 4th support hangers when the support hangers are placed on the first enclosure and one of the first and second upper lateral horizontal rails. Each of the bars bracket has a spring button mounted on the first end and at the second extreme. The spring button is sized and configured to engage in the button housing spring.

When the first and second ends of the bars of support are inserted into the holes of the hangers support, and the support hangers are placed on the first enclosure and one of the first and second horizontal lanes the upper sides, the spring buttons will snap into place. detachable in the spring button housings, providing thus a support platform for the second enclosure.

In another variant of the invention, the frame rigid additionally includes means for mounting articulated the front upper horizontal rails and rear in the upper front corner elements and the upper rear corner elements, respectively. The frame clamping devices are mounted so that articulated at center points of horizontal rails upper front and rear. These devices allow top rails swing downward from the open top of the first enclosure.

Means are provided for mounting so articulated the first and second lateral horizontal rails superior to front and rear corner elements superiors. The frame hinge devices are hingedly mounted at the center points of the first and second upper lateral horizontal rails. These devices allow each of the lanes to move hinged down from the open top of the first enclosure. Means are provided for mounting so articulated the first lateral and second lateral of the rails lateral lower horizontals on corner elements lower front and rear.

Frame articulation devices are hingedly mounted at central points of the first and second horizontal lower lateral rails, allowing each of the lanes to move smoothly hinged up from the floor of the first enclosure. Is it so means provided for hingedly mounting the rails front and rear lower horizontal elements on the front and rear lower corner, respectively. The Frame hinge devices are mounted so articulated at center points of horizontal rails lower front and rear. These devices allow each of the lanes moves in an articulated way from the floor of the first enclosure.

In use, the frame can be quickly folded into a compact package for transport and storage, releasing the locking devices placed on horizontal rails upper front and rear, and lowering the rails upper horizontals down while pulling upwards on a crank fixed to the ground. This causes the upper and lower lateral horizontal rails and the Front and rear lower horizontal rails bend up and the vertical rails move inward.

In a further variant of the invention, the Floor additionally includes at least four reinforcing straps. The straps have first and second ends and are attached securely to the bottom surface of the reinforcement panel. Two of the straps are secured at their first and second ends to each of the front lower horizontal rails and rear, respectively, and two of the straps are secured in its first and second extremes to each of the first and second lower lateral horizontal rails, respectively. Four padded covers are provided. The covers are securely attached to the floor panel and to at least one fixing portions to protect devices from frame hinge attached to bottom rails front and rear and those attached to the first side and second side of the lower horizontal rails.

A flexible loop is provided. The loop is fixedly attached to a central portion of the upper surface from the floor panel and provides a crank to raise the floor. A hollow leg member is attached to a central portion from the underside of the gusset panel to provide support for the same.

Still in a further variant of the invention, the second enclosure is padded and washable. In other alternatively, the second enclosure includes a rigid floor element separable sized to fit the second enclosure and a Elongated front flap to receive the rigid floor element. The flap is sized to fold over the front wall bottom and fixed to the outside of the playground, preventing this way the formation of any bag between the yard parenting games and bed.

Still in another variant, the second enclosure it further comprises a flexible floor surface.

In a further variant of the invention, the second enclosure includes a mesh floor surface. The surface serves to provide ventilation between the separable floor and the floor area of the second enclosure.

In still another variant, the ground surface mesh additionally includes attached reinforcement straps fixedly to a lower part of the ground surface.

In still another variant, the floor element detachable rigid has a top surface and a surface bottom and is covered with a washable, padded fabric over its top surface. In still another variant, the floor element rigid separable is segmented into at least two segments that are closely aligned, is capable of folding, and is covered with a washable and padded fabric on its surface higher. The rigid floor element serves as an enclosure for the playground when folded for transport and storage.

In still another variant, the floor element rigid, detachable additionally includes at least one pair of reversibly detachable fixing means and the second enclosure includes a series of sized openings, configured and positioned to allow the fixing means to secure the floor element to the means to detachably support the second enclosure.

In still another variant of the invention, the detachable rigid floor element further includes at least a pair of reversibly separable fixing means and the first and second side walls of the playground additionally include a series of sized openings, configured and positioned to allow the fixing means secure the floor element to the first and second walls lateral.

In a further variant, the height of the wall rear, front wall, first and second walls sides of the second enclosure can extend from a first position to at least one second larger position, allowing in this way that the lower part of the enclosure keep at least two different heights from the bed parental.

Still in a further variant of the invention, the rear wall, the front wall, the first and second side walls of the second enclosure are formed of a flexible material and include at least attached fixing means on the rear wall, and the first and second side walls. The fixing means allow the wall material rear, and the first and second side walls fold and is forced by the fixing means when the walls are placed in each of the first position and in a position intermediate, thus eliminating excess loose material inside the second enclosure.

Still in a further variant, the means of fastening are a zip fastener that has at least two matching portions. In still another variant of the invention, a flexible cover for the zip fastener portions serves to prevent injury to a baby or young child.

Still in another variant, the second enclosure additionally includes a first pair of fixing means reversibly detachable to fix a first side edge from the front wall to a leading edge of the first wall side and a second pair of detachable fixing means of reversible shape to fix a second side edge of the wall front to a leading edge of the second side wall, thus allowing the second enclosure to serve as a bathtub.

In yet another variant of the invention, the means of attachment that can be separated reversible comprise a pair of zippers. Still in another variant, a pair of padded covers extends over zippers to prevent injury to a baby or little boy.

Still in another variant, the playground convertible configured as a bunk bed additionally includes first portions of at least two pairs of fixing means reversibly separable. The first portions are joined securely to a lower portion of the elongated front flap. At least two second portions of the media are provided fixation. The second portions are fixedly attached to a lower portion of the front wall of the first enclosure. When the upper front horizontal rail is lowered from the first upper position to one of the second lower positions, the first portions of the pair of fixing means that can be reversibly separated can be secured to the second portions, thereby ensuring any material from excessive front flap and preventing the formation of any pocket between the elongated front flap and the floor element rigid of the second enclosure.

In a still further variant of the invention, the front wall is formed of flexible material and additionally includes means for reversibly lowering the front wall, ensuring any excessive flexible material, and preventing an infant or toddler from being trapped by openings in the front wall of the first enclosure when the rail upper front horizontal is lowered from the first position up to one of the second lower positions.

Still in another variant, the means to lower reversibly the front wall additionally include a first set of fasteners that can be separated from reversibly arranged adjacent to an upper edge of the front wall adjacent to an intersection of the first wall side and a first side of the front wall. One second set of fasteners that can be separated in a way reversible is positioned adjacent to the top edge of the wall front adjacent to a second side wall intersection and a second side of the front wall. The elements of fasteners that can be reversibly separated are spaced by no more than two inches. When the front horizontal rail top is lowered from the first top position to one of the second lower positions, the fastening elements that can be reversibly separated can be opened whenever necessary to allow the front wall to lower while secures any excessive flexible material.

In still another variant of the invention, the second supporting means of the enclosure are dimensioned to keep the bottom of the second enclosure at a level at least two inches below the front horizontal rail when available in one of the second positions.

In a still further variant, the set of safety straps additionally includes a strap element having a first end and a second end and an element of resistance plate that has at least two notches aligned vertically and placed in the center, in which the element of strap is fixed so that the first end and the second end are equidistant from the plate element. The media co-clamping devices are positioned at the first end and the second end of the strap element for reversible connection with one of the pairs of fastening means of the belt security. The adjustment means are provided to adjust the length of the strap element and the tightening of the strap element after the connection of the fixing cooperation means with one of the pairs of fastening means of the belt security. The strap element is properly positioned when is located under a mattress and above a surface on which the mattress rests on the parents' bed and held by placed resistance plate element vertically on one side of the parents' bed, opposite the placement of the berth. When the strap element is tightened, the bunk is held securely to the children's bed parents.

Still in another variant, the playground convertible configured as a bunk bed additionally includes panels that can be reversibly opened in the first and second side walls.

In still another variant of the invention, the first and second sections of the front corner elements upper and the receiving means fixedly attached to each lane front vertical to receive the first section of the elements upper front corner brackets and reversibly maintain the top front horizontal lane in at least one second lower position additionally include a notch 5 configured T-shaped extending from a lower end of the first section of the upper front corner element up to a upper end of the first section. A placement element extendable is placed on the first section adjacent to the T-shaped notch.

A first coincident T-shaped projection extends from a lower end of the receiving means towards an upper end of the receiving means and at the second section of the upper front corner element, terminating below an upper end of the element. At least two placement features are placed on the second section and the receiving means adjacent to the first T-shaped projection. placement are sized, configured and positioned to be detachably coupled by locating element extensible, so that the first section of the corner element upper front can be attached to the second section and to the receiving means in at least two positions.

In a still further variant, the second enclosure additionally includes a pair of corner flaps detachably fixed protective covers that are dimensioned, configured and positioned to cover the fixed receiving means to each front vertical lane.

In a still further variant, it is provided a canopy frame. The canopy frame has a top curved, a front, a rear and is dimensioned, configured and positioned to be removably attached to the first and second berth side parallel rails. It is provided a canopy cover. The cover is made of material flexible and detachably attached to the canopy frame. A mesh panel is provided. The panel is dimensioned, configured and positioned to removably cover the part front and rear of the canopy frame, providing thus ventilation and protection against insects.

Still in another variant, in which the frame rigid is formed of hollow tube, the upper horizontal rails front and rear each have a first portion and a second portion. Each portion has an inner end and a outer end. Frame articulation devices placed at the center points of the rails include additionally a connecting frame. The frame is mounted in articulated to the inner ends of each of the first and second portions of horizontal rails lower front and rear The connecting frame includes a pair of locking holes. A pair of buttons loaded with spring is mounted inside the upper horizontal rails The buttons are sized, configured and positioned to engage in the locking holes in the connecting frame when the first and second portions of the rails are collinear. Means are provided for pushing both buttons towards inside to release the locking holes in the mounting frame. connection simultaneously, thus allowing the rails upper horizontals move in an articulated manner above.

In still another variant of the invention, the rigid frame is formed of hollow casing and rails front and rear lower horizontals each have they a first portion and a second portion. Each serving has an inner end and an outer end. Devices frame hinges are positioned at central points of the rails and additionally include a connection housing Exterior. The connection housing is formed of material rigid and is hingedly mounted to the inner ends each of the first and second portions of the lanes front and rear lower horizontals.

An internal spring housing is provided. The spring housing is hingedly mounted to the inner ends of each of the first and second portions of the front and rear lower horizontal rails, so that the pivot posts are collinear with the uprights of the external connection housing. The accommodation of internal spring is positioned inside the connection housing external and is sized, configured and positioned to fit with friction around the inner ends of each of the first and second portions of lanes Accommodation with internal spring is capable of expanding within the housing of external connection to allow pivoting movement of the inner ends when rigid frame is folded, thus provided means of locking the inner ends in collinear alignment when rigid frame is deployed.

In still another variant, the rigid frame is formed from hollow casing. The front horizontal rails and rear each have a first portion and a second portion. Each portion has an inner end and an end external frame, and the frame hinge devices positioned at the center points of the rails additionally include a spring housing. The spring housing is mounted hinged shape on a pair of mounting pins on the inner ends of each of the first and second portions of the front and rear lower horizontal rails. He spring housing includes first and second pairs of curved alignment notches and first and second pairs of positioning retainers.

First and second pins of alignment. The alignment pins are mounted parallel to mounting pins and are spaced out from the inner ends of the first and second portions of the Front and rear lower horizontal rails. The alignment pins are dimensioned, configured and positioned to fit slidably within notches alignment pins. Each of the pairs of placement are spaced a distance slightly less than a diameter of one of the lower horizontal rails front and rear.

When the first and second portions of the Front and rear lower horizontal rails are collinear, the rails will be within the spring housing. When the rails are articulated with respect to each other to fold the playground, the retainers will be pushed against the rails due to the elastic resistance of the housing, causing that the housing is extended, serving such resistance to maintain collinear alignment of the lanes when the park games gets vertical.

Still in a further variant, they are means provided for changing the height of the bunk, in such a way than the level of the front upper horizontal rail when it is disposed in a second position is substantially level with a top of the parent's bed mattress. Still in Another variant, the height adjustment means includes extensions that cooperate with each of the four elements of lower corner leg.

In still another variant of the invention, the first section of the front upper corner element is a male section and the second section is a female section, having the second section an opening small enough to avoid the entry of the fingers of small children or babies.

In a further variant, the means of reception are a female section for association with section male. The receiving means have an opening sufficiently small to prevent the entry of children's small fingers or babies.

In still another variant of the invention, it is provided at least one locking safety clip. He locking bra is formed of elastic material and includes a elongated element. The element has a first end and a second extreme. Element is sized and configured to extend beyond either end of one of the frame articulation positioned at the center points of the Front and rear lower horizontal rails. Is it so provided first and second rail coupling portions. The first and second portions are fixedly attached to the first and second ends of the elongated element, respectively. The rail coupling portions are dimensioned, configured and positioned to fit with friction and shape separable on each of the lower horizontal rails front and rear. When the convertible playground is vertical, the safety clip is placed over one of the articulating devices of the frame and portions of rail coupling are placed on one of the rails front and rear lower horizontals. In this way, lanes will be limited to articulate movement towards up until the safety clip is removed.

Still in another variant, the bra Security additionally includes a flexible fastening element. The fastener has a first end and a second end and is securely attached at its first end to the security. The fixing element has means for fixing permanently to one of the lower horizontal rails front and rear adjacent to the pivot device. The means are permanently attached to the fastener at its second extreme. In this way, the safety clip will be limited within the close proximity of the joint, thus avoiding its accidental loss.

Still in a further variant of the invention, the first and second sections of the elements of upper front corner and attached receiving means fixed to each front vertical rail to receive the first section of the upper front corner elements and keep reversibly the upper front horizontal rail in al minus a second lower position, additionally include a T-shaped projection, extending from a lower end of the first section of the corner element upper front to an upper end of the section. A extendable positioning element is placed on the first section adjacent to the T-shaped projection. second matching T-shaped notch extends from a lower end of the second section of the corner element upper front end and ends below an upper end of the element.

A first characteristic of placement is placed over the second section adjacent to the second notch configured in a T-shape. The first placement feature is sized, configured and positioned to be coupled removable by means of the extendable positioning element than the first section of the upper front corner element can be secured to the second section. A first portion of reception is positioned on the front vertical rail at a first preset distance below the second section of the upper front corner element. The first portion includes a third matching T-shaped notch extending from a lower end of the first portion ending below an upper end of the first portion.

A second placement feature is placed on the first portion adjacent to the third notch configured in a T-shape. The second placement feature is sized, configured and positioned to be coupled removable by means of the extendable positioning element than the first section of the upper front corner element can be attached to the first portion. A second portion of reception is positioned on the front vertical rail at a second preset distance below the second section of the upper front corner element. The second portion includes a matching fourth T-shaped notch extending from a lower end of the second portion ending below an upper end of the second portion.

A third placement feature is placed on the second portion adjacent to the fourth notch matching T-shape. The third placement feature is sized, configured and positioned to be coupled removable by means of the extendable positioning element than the first section of the upper front corner element can be attached to the second portion.

In still another variant of the invention, the first and second sections of the front corner elements upper and the receiving means fixedly attached to each lane front vertical to receive the first section of the elements upper front corner brackets and reversibly maintain the top front horizontal lane in at least one second lower position, additionally include a shortened projection configured in the shape of a T located between a lower end of the first section of the upper front corner element and a upper end of section.

A positioning element is provided extendable located on the first section below the T-shaped projection. A second matching notch in the form of T extends from a lower end of the second section of the upper front corner element and ends below an upper end of the element. The notch includes an opening placed between the upper end and the lower end of the element. The opening is sized and configured to allow the entrance to the T-shaped projection.

A first characteristic of placement is placed on the second section adjacent to the second notch in T-shape. The first placement feature is sized, configured, and positioned to fit snugly separated by the extendable positioning element, so that the first section of the upper front corner element can be fixed to the second section.

A first receiving portion is provided. The first portion is placed on the vertical rail front to a first preset distance below the second section of the upper front corner element. The first portion includes a third matching notch in the form of T. The third notch extends from a lower end of the first portion and ends below an upper end of the first serving. T-shaped notch includes opening located between the upper end and the lower end of the portion. The opening is sized and configured to allow the entrance to the T-shaped projection.

A second placement feature is placed on the first portion adjacent to the third notch in T-shape. The second placement feature is sized, configured, and positioned to fit snugly separable by the extensible positioning element, so that the first section of the upper front corner element can look at the first portion.

A second receiving portion is provided. The second portion is placed on the vertical rail front to a second preset distance below the second section of the upper front corner element. The second portion includes a fourth matching notch in the shape of T. The fourth notch extends from a lower end of the second portion and ends below an upper end of the second portion. The T-shaped notch includes a opening placed between the upper end and the lower end portion, and is sized and configured to allow T-shaped projection entrance.

A third feature of placement placed on the second portion adjacent to the fourth T-shaped notch. The third placement feature is sized, configured, and positioned to fit snugly separable by the extensible positioning element, so that the first section of the upper front corner element can look at the second portion.

In a final variant, the second enclosure includes additionally a pair of protective corner flaps detachably attached. The flaps are dimensioned, configured and positioned to cover the first and second receiving portions fixed to each vertical rail Forward.

Description of the figures

Figure 1 is a perspective view of the first enclosure of the preferred embodiment of the invention.

Figure 2 is a perspective view of a first embodiment of the second section of the unit form separable upper front corner. reversible.

Figure 3 is a perspective view of a first embodiment of the first section of the unit reversibly separable upper front corner.

Figure 4 is a perspective view of a first embodiment of a locking device of the frame.

Figure 5 is a perspective view of a frame articulation device.

Figure 6 is a perspective view in partial section of the embodiment of figure 1 showing illustrates the mesh floor and double receiving means for the first section of the upper front corner unit.

Figure 7 is a perspective view of a Segmented version of the rigid floor element.

Figure 8 is a detail of the plan view from the bottom of the floor panel and the reinforcement panel ground.

Figure 9 is a detail in cross section from figure 8 taken along the line 9-9.

Figure 10 is a perspective view exploded view of the embodiment of Figure 1, showing illustrates the second enclosure, means to support the second enclosure, rigid floor element and horizontal rail upper front lowered.

Figure 11 is a front sectional view cross section of the second enclosure fixed in the first position.

Figure 12 is a front sectional view cross section of the second enclosure in a second position extended.

Figure 13 is a sectional side view spring button housing cross section and support.

Figure 14 is a perspective view of the interior of second enclosure illustrating zip fasteners used in adjusting the height of the enclosure and fasteners reversibly detachable for protective covers for the zipper closures.

Figure 15 is a perspective view of the reversibly detachable fasteners for use in conjunction with the lowering the front wall illustrated in the closed position and illustrates the means for attaching the extended front flap of the second enclosure to the front wall of the berth.

Figure 16 is a perspective view of the reversibly detachable fasteners for use in conjunction with the Lowering the front wall illustrated in the closed position with the front wall in a second lowered position.

Figure 17 is a perspective view of the reversibly detachable fasteners for use in conjunction with the Lowering the front wall illustrated in the closed position with the front wall in a second additional lowered position.

Figure 18 is a perspective view of the bunk bed attached to the parents' bed by means of the set of safety strap.

Figure 19 is a perspective view of the bunk bed with attached canopy cover.

Figure 20 is a detailed view in media perspective to change the height of the berth.

Figure 21 is a perspective view of a second embodiment of the second section of the unit reversibly separable upper front corner.

Figure 22 is a perspective view of a second embodiment of the first section of the unit reversibly separable upper front corner.

Figure 23 is a perspective view of a second embodiment of a locking device of the frame.

Figure 24 is a perspective view of a added safety lock fastener.

Figure 25 is a perspective view of a flexible fastener for a locking fastener added security.

Figure 26 is a perspective view of a third embodiment of the second section of the unit reversibly separable upper front corner.

Figure 27 is a perspective view of a third embodiment of the first section of the unit reversibly separable upper front corner.

Figure 28 is a perspective view of the first enclosure of a second embodiment of the invention using reversible separable corner units illustrated in Figures 26 and 27.

Figure 29 is a perspective view of the embodiment of figure 1 in partially condition folded.

Figure 30 is a perspective view of the embodiment of figure 1 in folded condition further; and

Figure 31 is a perspective view of the embodiment of figure 1 fixed inside the element of the rigid segmented floor as a compact package for transport and storage.

Detailed description of the preferred embodiment

As illustrated in Figure 1, the present invention is a playpen 10 convertibly adapted for use as a bathtub, changing table, and bunk bed. Playground 10 includes a first rigid enclosure 14 with an open top 18, a floor 22, a front wall 26, a rear wall 30, a first side wall 34, and a second side wall 38. Enclosure 14 is of a first predetermined height 42 and has a rigid frame
46.

Frame 46 is formed on top 18 by 50 and 50 front upper parallel horizontal rails rear 54, first 58 and second 62 horizontal rails upper sides, two front corner elements upper 66, 70 and two upper rear corner elements 74, 78, in cooperation with them. Frame 46 is formed adjacent to ground 22 by parallel horizontal rails lower front 82 and rear (not shown), first 90 and seconds 94 parallel lower lateral horizontal rails and four lower corner leg elements 98, 102 (not shown), 110 in cooperation with them. A couple of lanes front verticals 114, 118 and a pair of vertical rails rear (not shown), 126, are in further cooperation with the two upper front corner elements 66, 70, both upper rear corner elements 74, 78 and all four lower equine leg elements 98, 102, 106, 110. The rigid frame 46 supports the floor 22, the front wall 26, the rear wall 30, the first side wall 34 and the second wall side 38.

As illustrated in Figures 1, 6 and 8, the ground 22 additionally includes a floor panel 130 attached to the wall front 26, to rear wall 30, to first side wall 34 and to the second side wall 38. The floor panel 130 has a upper surface 134 and a lower surface 138. It is a floor reinforcing panel 142 is provided. Reinforcing panel 142 has substantially the same plane dimensions as the floor panel 130 and has a top surface (not shown), a bottom surface 150, a perimeter 154 and at least four gripping portions 158, 166 extending outwardly from perimeter 154. Stiffening panel 142 is securely attached at its upper surface to the lower surface of the floor panel 130. The clamping portions 158, 166 are fixedly attached to each of the lower parallel horizontal rails front 82 and rear and first 90 and second 94 lanes lower parallel horizontals.

As illustrated in the figures 1-3, each upper front corner element 66, 70 is constructed of two separable complementary sections of reversible shape 174, 178, 182, 186. The first of these sections 178, 182 is fixedly attached to one end 190, 194 of the rail front upper horizontal 50 and the second of these sections 174, 186 is fixedly attached to the upper end 198, 202 of one vertical rails 114, 118. The corner elements upper front 66, 70 support horizontal rail top striker 50 in his first position 206.

As illustrated in Figure 10, the means of reception 210, 214 are fixedly attached to each vertical rail front 114, 118 to receive the first section 178, 182 of a upper front corner element 66, 70 and keep in shape reversible the upper front horizontal rail 50 in at least a second lower position 218, thereby maintaining the structural rigidity of the playground 10 when he lane horizontal front upper 50 is in one of the second positions 218.

A second enclosure 222 is planned. The second Enclosure 222 is sized to substantially fit within the first enclosure 14 and has an open top 226, a rear wall 230, a front wall 234, first 238 and second 242 side walls and a bottom 246. They are means 250 provided for removably supporting the second enclosure 222 within first enclosure 14 at least at a distance default 254 from top 18 of the first enclosure 14.

As illustrated in Figure 18, a set of safety strap 258 for fixing to the bed of the 262 parents, along with at least one alignment media pair 266 through which the belt assembly is directed security 258. These alignment means 266 maintain the assembly 258 safety strap in horizontal orientation and prevent the elevation or buckling of the playground 10 when used as a bunk. At least one pair of fixing means is provided 270 for attaching the safety strap assembly 258 to the playground 10.

Playground 10 is ready for use as a bunk when the upper front horizontal rail 50 is in one of the second positions 218, the second enclosure 222 is supported by the support means 250 of the second enclosure, safety strap assembly 258 is directed through one of the alignment means 266, attached to one of the means 270 and is properly positioned and fixed to the parents bed 262.

As illustrated in figure 10, in a variant of the invention, the means 250 for releasably supporting the second enclosure 222 within first enclosure 14 at least one default distance 254 from the top 18 of the first Enclosure 14, additionally include first 252, second 256, third 260 and fourth 264 support hangers. Each of the support hangers 252, 256, 260, 264 have a first end 268, a second end 272, an inner side 276 and an outer side 280. Each of the support hangers 252, 256, 260, 264 has a curved latch portion 284 located at the first end 268.

The latch portion 284 is dimensioned and configured to friction fit over first enclosure 14 and one of the first 58 or second 62 horizontal lanes upper sides. Each of the support hangers 252, 256, 260, 264 additionally includes at least two circular holes 288. Holes 288 extend from inner side 276 up to outer side 280 of hangers 252, 256, 260, 264. As illustrated in Figures 10 and 13, the hangers 252, 256, 260, 264 also include at least two pushbutton housings. spring 292. Housings 292 are positioned on the sides 280 of the support hangers 252, 256, 260, 264 adjacent to holes 288. Each of the Spring buttons 292 include a finger opening 296.

Two support bars 300 are provided. Each one of the bars 300 has a first end 304 and a second 308 end. Bars 300 are sized and configured to extend between one of the first 252 and second 256 hangers of support and one of the third 260 and fourth 264 support hangers when the support hangers 252, 256, 260, 264 are in place on the first enclosure 14 and one of the first 58 and second 62 upper lateral horizontal rails. Each of the bars Bracket 300 has a 312 spring button mounted on the first end 304 and second end 308. Spring button 312 is sized and configured to fit into the housing 292 spring button.

When the first 304 and second 308 are entered ends of the support bars 300 into the holes 288 of the support hangers 252, 256, 260, 264, and support hangers 252, 256, 260, 264 are placed on the first enclosure 14 and one of the first 58 and second 62 lateral horizontal rails top, the spring buttons 312 will engage snugly. releasable in the spring button housings 292 of the hangers 252, 256, 260, 264 thereby providing a support platform 316 for the second enclosure 222.

In a variant of the invention, as illustrated In Figure 1, the rigid frame 46 further includes means 280 for hinged mounting of horizontal rails upper front 50 and rear 54 on corner elements upper front 66, 70 and rear corner elements higher 74, 78, respectively. As illustrated in the figures 1 and 4, the frame fasteners 274 are hingedly mounted at center points 278, 282 of the Front 50 and rear 54 top horizontal rails. Devices 274 allow the top rails 50, 54 to be hinge down from the top open 18 of the first enclosure 14.

Means 286 are provided for mounting so articulated the first 58 and second 62 horizontal rails top sides to top corner elements front 66, 70 and rear 74, 78 upper. Devices frame clamp 274 are hingedly mounted on the center points 294, 298 of the first 58 and second 62 upper lateral horizontal rails. These devices 274 allow each of the rails 58, 62 to move in a hinged down from the open top 18 of the first enclosure 14. Means 302 are provided for mounting so that articulated the first 90 and the second 94 horizontal rails bottom sides on bottom corner elements front 98, 102 and rear 106, 110.

As illustrated in Figures 1 and 5, the frame articulation devices 290 are mounted articulated form in central points 306, 310 of the first 90 and seconds 94 lower lateral horizontal rails, allowing that each of the rails 90, 94 moves in an articulated manner up from the floor 22 of the first enclosure 14. They are means 314 provided for hingedly mounting the rails front lower horizontal 82 and rear 86 on the elements lower corner front 98, 102 and rear 106, 110, respectively. Frame articulation devices 290 are hingedly mounted at central points 314, 318 of the front lower 82 and rear 86 horizontal rails. These devices 290 allow each of the rails 82, 86 move hingedly up from the floor 22 of the first enclosure 14.

As illustrated in the figures 29-31, the frame 46 can be quickly folded into a compact 322 package for transport and storage by dropping the locking devices 274 placed on the rails horizontal upper front 50 and rear 54, and lowering the 50 top horizontal rails, 54 down at the same time pulled up on a crank 326 (Figures 29 and 30) fixed to the ground 22. This causes the horizontal rails to upper sides 58, 62 and lower 90, 94 and rails 1 front 82 and rear 86 lower horizontals bend toward up and vertical rails 114, 118, 126 move toward inside.

In a further variant of the invention, such as illustrated in Figures 8 and 9, the floor 22 includes additionally at least four reinforcing straps 326. The straps 326 have extreme first 330 and second extreme (not shown) and are fixedly attached to the underside 150 of the backing panel 142. Two of the 326 straps are attached to their first 330 and extreme seconds to each of the horizontal rails lower front 82 and rear, respectively, and two of the 326 straps are attached at their first 330 and second ends to each of the first 90 and second 94 horizontal lanes lower laterals, respectively. As illustrated in Figures 1 and 6, four padded covers 338 are provided. covers 338 are securely attached to the floor panel 130 and to the at least one of the fixing portions 158, 166 to protect the frame articulation devices 290 attached to the lower front rails 82 and rear 86 and those attached to the first 90 and seconds 94 of the horizontal lanes lower sides.

A flexible loop 342 is provided. The loop 342 is fixedly attached to a central portion 346 of the surface top 134 of the floor panel 130 and provides a crank to raise the ground 22. A hollow leg member (not shown) is attached to a central portion 354 of bottom surface 138 of the reinforcement panel 142 to provide support for the same.

Still in a further variant of the invention, as illustrated in Figure 10, the second enclosure 222 it is padded and washable. In another variant, the second enclosure 222 includes a detachable rigid floor element 358 sized to fit within the second enclosure 222 and a front flap elongated 362 to receive rigid floor member 358. flap 362 is sized to fold over the front wall lower 26 and fixed to the outside of the playground 10, thus preventing the formation of any pocket between the play park 10 and parents' bed 262.

Still in another variant, the second enclosure 222 further comprises a flexible floor surface 366. In a further variant of the invention, the second enclosure 222 includes a 370 mesh floor surface. The 370 surface area serves to provide ventilation between the floor element separable 358 and the ground surface 370 of the second enclosure.

In still another variant, the ground surface 370 mesh additionally includes reinforcement straps (not shown) securely attached to a bottom (not shown) of soil surface 370.

In still another variant, as illustrated in Figure 7, the removable rigid floor element 358 has an upper surface 374 and a lower surface 378 and is covered with a washable fabric 382 and is padded on its upper surface 374. In still another In a variant, the detachable rigid floor member 358 is segmented into at least two segments 362 that are closely aligned, capable of folding, and covered with a washable fabric 382 and padded on its upper surface 374. As illustrated in FIG. 31 , the rigid floor element 358 serves as an enclosure 386 for the playground 10 when folded for transport and storage.
to.

In still another variant, as illustrated in Figures 7 and 10, the rigid, detachable floor element 358 includes additionally at least one pair of fixing means 388 reversibly separable and the second enclosure 222 includes a 292 series of openings sized, configured and positioned to allow the fixing means 388 to secure the fastener element floor 358 to means 250 for removably supporting the second enclosure 222.

In still another variant of the invention, as illustrated in Figure 10, the detachable rigid floor element 358 additionally includes at least one pair of fixing means reversibly separable 396 and the first 34 and second 38 Playground side walls 10 additionally include a series of openings 400 sized, configured and positioned to allow the fixing means 396 to secure the element from floor 358 to first 34 and second 38 walls lateral.

In a further variant, as illustrated in the Figures 10-12, the height of the rear wall 230, of the front wall 234, of the first 238 and second 242 walls sides of the second enclosure 222 may extend from a first position 390 to at least one second larger position 394, thus allowing the bottom 246 of enclosure 222 to be keep at least two different heights from the bed of parents 262.

Still in a further variant of the invention, the rear wall 230, the front wall 234, the first 238 and the second 242 side walls of the second enclosure 222 are formed of a flexible material 398 and include at least one fixing means 402 placed on the rear wall 230, the first 234 and second 238 side walls. The means of fixing 402 allow the material 398 of the rear wall 230, the first 238 and second 242 side walls will fold and is limited by the fixing means 402, when the walls 230, 238, 242 are positioned in each of the first position 390 and an intermediate position (not shown), eliminating from this way excessive loose material 398 inside the second enclosure 222.

Still in an additional variant, as illustrated in figure 14 the fixing means 402 is a closure rack having at least two matching portions 410, 414. In still another variant of the invention, a cover flexible 418 for zip fastener portions 410, 414 serves to prevent injury to a baby or young child.

In still another variant, as illustrated in Figures 10 and 14, the second enclosure 222 further includes a first pair of reversibly detachable fixing means 422 to fix a first side edge 426 of the front wall 234 to a leading edge 430 of the first side wall 238 and a second pair of reversibly detachable fixing means 434 to fix a second side edge 438 of the front wall 234 to a leading edge 442 of the second side wall 242, thus allowing the second enclosure 222 to serve as a bathtub.

In yet another variant of the invention, the means of attachment that can be separated reversible 422, 434 comprise a pair of zippers. In still another variant, a pair of padded covers 446 is extends over zip fasteners 422, 434 to prevent injury to a baby or young child.

In still another variant, as illustrated in figures 10 and 15-17, the playground 10 convertible configured as a bunk bed additionally includes first 450 portions of at least two pairs of media fixation 454 reversibly separable. The first servings 450 are fixedly attached to a bottom 458 of the flap elongated front 362. At least two second portions 462 of the attachment means 454. The second portions 462 are fixedly attached to a lower portion 466 of the wall front 26 of the first enclosure 14. When the horizontal rail top forward 50 is lowered from first 390 position up to one of the second lower positions 394, the first portions 450 of the pair of fixing means 454 that can be reversibly separated can be attached to the second portions 462, thereby ensuring any material excess of the front flap 362 and the formation of any pocket between the elongated front flap and the floor element rigid of the second enclosure.

In a still further variant of the invention, as illustrated in Figures 14-17, the front wall 26 is formed of flexible material 470 and includes additionally means 474 for reversibly lowering the wall front 26, ensuring any excess flexible material 470, and preventing an infant or toddler from being trapped by openings 478 in the front wall 26 of the first enclosure 14 when the upper front horizontal rail 50 is lowered from the top first position 390 to one of the second positions lower 394.

In still another variant, means 474 for reversibly lower front wall 26 include additionally a first set of fastening elements 482 that can be reversibly separated arranged adjacent to a upper edge 486 of front wall 26 adjacent to a intersection 490 of the first side wall 34 and a first side 494 of the front wall 26. A second set of elements of fasteners that can be reversibly detached (not shown) is positioned adjacent the top edge 486 of the front wall 26 adjacent to an intersection (not shown) of the second wall side 38 and a second side (not shown) of the front wall 26. The fasteners 482 that can be separated in a way reversible are spaced no more than two inches apart. When the upper front horizontal rail 50 is lowered from the first top position 390 to one of the second positions lower 394, the fasteners 482 that can be separated can be reversibly opened when necessary to allow the front wall 26 to be lowered while securing any excessive flexible material 470.

In still another variant of the invention, as illustrated in Figures 10 and 12, the support means 250 of the second enclosure are sized to hold the bottom 246 of the second enclosure 222 at a level at least two inches above below the front horizontal rail 50 when arranged in a of the second positions 394.

In a still further variant, as shown illustrated in Figure 18, the safety strap assembly 258 further includes a strap element 510 having a first end 514 and a second end 518 and a plate element 522 resistor that has at least two 526 notches aligned vertically and placed in the center, in which the element of strap 510 is secured in such a way that the first end 514 and the second end 518 are equidistant from the plate element 522. The fixing cooperation means 530 are placed in the first end 514 and the second end 518 of the 510 strap for reversible connection with one of the pairs of fastening means 270 of the safety strap. The means of adjustment 534 are provided to adjust the length of the strap 510 and the tightening of strap element 510 after the connection of the fixing cooperation means 530 with one of the pairs of the securing strap attachment means 270. The strap element 510 is properly positioned when it is located under a mattress 538 and above a surface 542 on which the 538 mattress rests on the parents' bed 262 and is held in position by the plate member resistance 522 placed vertically on one side 546 of the bed of parents 262, opposed to the placement of bunk 10. When strap element 510 is tightened, berth 10 is held firm to parents bed 262.

In still another variant, as illustrated in Figure 19, the convertible playground 10 configured as a bunk bed includes additionally openable panels reversible 550 on the first 34 and second 38 side walls.

In still another variant of the invention, as illustrated in Figures 21 and 22, the first 178, 182 and second 174, 186 sections of the front corner elements upper 66, 70 and the receiving means 210, 214 attached securely to each front vertical rail 114, 118 to receive the first section 178, 182 of the front corner elements higher 66, 70 and reversibly maintain the lane upper front horizontal 50 in at least one second position lower 394 include a 554 T-shaped notch that extends from a lower end 558 of the first section 178, 182 of the top front corner element 66, 70, to one end upper 562 of the first section 178, 182. An element of extension laying 566 is positioned over the first section 178, 182 adjacent to T-notch 554.

A first coincident T-shaped projection 570 extends from a lower end 574 of the means of reception 210, 214 towards an upper end 578 of the means of reception 210, 214 and within the second section 174, 186 of the upper front corner element 66, 70, ending with below an upper end 582 of element 66, 70. At least two 586 placement features are placed in the second section 174, 186 and the receiving means 210, 214 adjacent to the first T-shaped projection 570. Installation characteristics 586 are sized, configured and positioned to be releasably coupled by the positioning element extension 566, so that the first section 178, 182 of the upper front corner element 66, 70 can be secured to the second section 174, 186 and the reception means 210, 214 at the minus two positions.

Still in an additional variant, as illustrated in Figure 10, the second enclosure 222 includes additionally a pair of 594 protective corner flaps attached separably, which are dimensioned, configured and positioned to cover the receiving means 210, 214 attached to each front vertical rail 114, 118.

In yet a further variant of the invention, as illustrated in Figure 19, a canopy frame 598. The canopy frame 598 has a portion curved top 602, a front 606, a rear 610 and is sized, configured, and positioned to be securely attached form detachable to first 58 and second 62 parallel rails upper sides of the berth 10. A cover is provided canopy 614. Cover 614 is formed of flexible material 618 and is releasably attached to canopy frame 598. It is provides a 622 mesh panel. The panel is sized, configured and located to detachably cover the part front 606 and rear 610 of canopy frame 598, thus providing ventilation and protection against insects.

In still another variant, as illustrated in Figure 4, in which the rigid frame 46 is formed of tube hollow, the front upper horizontal rails 50 and rear 54 each have a first portion 626 and a second portion 630. Each portion 626, 630 has an inner between 634 and an outer end (not shown). Devices frame hinge 274 positioned at central points 278, 282 of the rails 50, 54 further include a frame of connection 642. Frame 642 is hingedly mounted to the inner ends 634 of each of the first 626 and second 630 portions of the lower horizontal rails front 82 and rear 86. Connecting frame 642 includes a pair of 646 locking holes. One pair of buttons loaded with spring 650 are mounted inside the horizontal rails upper 50, 54. The 650 buttons are sized, configured, and positioned to engage in locking holes 646 in the connecting frame 642 when the first 626 and second 630 portions of lanes 50, 54 are collinear. I know provide means 654 for pushing both buttons 650 inward to clear the 646 locking holes in the mounting frame. 642 connection simultaneously, thus allowing lower horizontal rails 50, 54 articulate towards above.

In still another variant of the invention, as illustrated in Figure 23, the rigid frame 46 is formed of hollow tube and the front lower horizontal rails 82 and rear 86 each have a first portion 628 and a second portion 632. Each portion 628, 632 has an inner end 636 and an outer end (not shown). Devices frame hinge 276 are positioned at central points 314, 318 of lanes 82, 86 and additionally include a external connection housing 666. The connection housing 666 is formed of rigid material and is mounted so hinged to the inner ends 636 of each of the first 628 and second 632 portions of the horizontal rails lower front 82 and rear 86.

Inner spring housing provided 670. Spring housing 670 is hingedly mounted to the inner ends 636 of each of the first 628 and second 632 portions of the lower horizontal rails front 82 and rear 86, so that the struts joint are collinear with the stud housing outer connection 666. The inner spring housing 670 is located within the outer connection housing 666 and is sized, configured and positioned to fit by friction around the inner ends 636 of each of the first 628 and second 632 portions of lanes 82, 86. The 670 inner spring housing is capable of extending within external connection housing 666 to allow articulation of the inner ends 636 when the frame rigid 46 folds, thereby providing a means of lock 636 inner ends in collinear alignment when rigid frame 46 is unfolded.

In still another variant, as illustrated in Figure 5, the rigid frame 46 is formed of hollow tube 668. Front 82 and rear 86 lower horizontal rails have each of them a first portion 628 and a second portion 632. Each portion 628, 632 has an inner end 636 and a outer end (not shown) and hinge devices frame 290 positioned at center points 314, 318 of the Rails 82, 86 additionally include a dock housing 672. Spring housing 672 is mounted so that hinged on a pair of 676 mounting pins at the ends interior 636 of each of the first 628 and second 632 portions of the front lower horizontal rails 82 and rear 86. Spring housing 672 includes first 676 and second 680 pairs of curved alignment grooves and first 684 and second 688 pairs of position retainers.

First 692 and second 696 are provided alignment pins. Alignment pins 692, 696 are mounted parallel to mounting pins 676 and are spaced outward from the inner ends 636 of the first 628 and second 632 portions of the lower horizontal rails front 82 and rear 86. The alignment pins 692, 696 are sized, configured and located to fit the movable within curved alignment grooves 676, 680. Each of the pairs of position retainers 684, 688 are spaced apart by a distance slightly less than a diameter 700 of one of the lower horizontal rails front 82 and rear 86.

In still a further variant, as illustrated in Figures 10 and 20, means 674 is provided for change the height of the bunk 10, so that the level of the front upper horizontal rail 50, when arranged in a second position 218, is substantially level with a top of mattress 538 of parents' bed 262. In still another variant, the height adjustment means 674 include 678 extensions that cooperate with each of the four lower corner leg elements 98, 102, 106, 110.

In still another variant of the invention, as illustrated in Figures 2 and 3, the first section 178, 182 of the front upper corner element 66, 70 is a male section 682 and the second section 174, 186 is a female section 686, the second section 174, 186 having an opening sufficiently small to prevent the entry of the fingers of small children or babies.

In a further variant, as illustrated in the Figures 6 and 10, the receiving means 210, 214 is a section female 690 for association with male section 682. receiving 210, 214 has an opening small enough to prevent the entry of the small fingers of children or babies.

In still another variant of the invention, as illustrated in Figure 24, at least one fastener is provided lock safety 694. Locking clip 694 is formed made of elastic material and includes an elongated member 698. Element 698 has a first end 702 and a second end 706. Element 698 is sized and configured to extend further beyond either end of one of the frame hinge 290 positioned at central points 314, 318 of the front lower horizontal rails 82 and rear 86. First 710 and second 714 portions are provided rail coupling. The first 710 and the second 714 portions are fixedly mounted in the first 702 and seconds 706 ends of elongated member 698, respectively. The rail coupling portions 710, 714 are dimensioned, configured, and positioned to fit friction and shape detachable on each of the lower horizontal rails front 82 and rear 86. When the convertible playground 10 is mounted, safety clip 694 is placed over one of the frame hinge devices 290 and the rail coupling portions 710, 714 are positioned in one of the front lower horizontal rails 82 and rear 86. In this way, lanes 82, 86 will be limited at your joint upward until the fastener is removed from security 694.

In still another variant, as illustrated in Figure 25, safety clip 694 further includes a flexible fastener 718. The fastener 718 has a first end 722 and a second end 726 and is attached securely at its first end 722 to safety clip 694. The fastener 718 has means 730 for fastening standing to one of the front lower horizontal rails 82 and rear 86 adjacent to articulation device 290. The medium 730 is permanently attached to fastener 718 at its second end 726. In this way, the safety clip 694 will be limited within a close proximity of the articulation device 290, thus preventing its accidental loss.

In yet a further variant of the invention, as illustrated in Figures 26-28, the first 178, 182 and second sections 174, 186 of the upper front corner elements 66, 70 and the middle of receiving 210, 214 fixedly mounted to each vertical rail front 114, 118 to receive the first section 178, 182 of the top front corner elements 66, 70 and keep from reversible shape the upper front horizontal rail 50 in al minus a second lower position 218 further include a 554 T-shaped projection extending from one end bottom 558 of the first section 178, 182 of the corner element upper front 66, 70 to an upper end 562 of the section 178, 182. An extendable placement member 566 is placed in the first section 178, 182 adjacent to the projection T-shaped 554. A second matching T-shaped slot 734 extends from a lower end 738 of the second section 174, 186 of the upper front corner element 66, 70 and terminates below an upper end 582 of element 66, 70.

A first placement feature 742 is placed in the second section 174, 186 adjacent to the second T-slot 734. The first placement feature 742 is sized, configured and positioned to be coupled detachable by the extensible positioning element 566, of so that the first section 178, 182 of the corner element upper front 66, 70 can be secured to the second section 174, 186. As illustrated in Figure 28, a first portion of reception 746 is located in the front vertical lane 114, 118 to a first preset distance 750 below the second section 174, 186 of the front corner element upper 66, 70. The first portion 746 includes a third groove matching T-shaped 754 extending from one end bottom 758 of the first portion 746 that ends below a upper end 762 of the first portion 746.

A second 766 placement feature is positioned in the first portion 746 adjacent to the third slot T-shaped 754. The second placement feature 766 is sized and positioned to be releasably coupled by the extensible positioning element 566, in such a way that the first section 178, 182 of the upper front corner element 66, 70 may be secured to the first portion 746. A second portion of reception 770 is located in the front vertical lane 114, 118 to a second preset distance 774 below the second section 174, 186 of the upper front corner element 66, 70. The second portion 770 includes a fourth slot matching T-shaped 778 extending from one end bottom 780 of the second portion 770 that ends below a upper end 782 of second portion 770.

A third placement feature 786 is positioned in the second portion 770 adjacent to the fourth slot in T-shape 778. The third placement feature 786 is sized, configured, and positioned to fit snugly detachable by the extensible positioning element 566, so than the first section 178, 182 of the front corner element upper 66, 70 can be secured to the second portion 770.

In still another variant of the invention, as illustrated in Figures 2, 3 and 6, the first 178, 182 and the second 174, 186 sections of the front corner elements upper 66, 70 and the receiving means 210, 214 mounted securely to each front vertical rail 114, 118 to receive the first section 178, 182 of the front corner elements higher 66, 70 and reversibly maintain the lane upper front horizontal 50 in at least one second position lower 218 additionally include a shortened projection at T-shape 788 located between a lower end 558 of the first section 178, 182 of the upper front corner element 66, 70 and an upper end 652 of section 178, 182.

A positioning element is provided extension 566 located in the first section 178, 182 below of the T-shaped projection 788. A second matching slot T-shaped 792 extends from a lower end 738 of the second section 174, 186 of the upper front corner element 66, 70 and terminates below an upper end 582 of the element 66, 70. The slot 792 includes an opening 796 located between the upper end 582 and lower end 738 of elements 66, 70. Opening 796 is sized and configured to allow T-shaped projection entrance 788.

A first placement feature 742 is located in the second section 174, 186 adjacent to the second T-slot 792. The first placement feature 742 is sized, configured and located to be detachably attached by the extendable positioning element 566, so that the first section 178, 182 of the upper front corner 66, 70 can be secured to the second section 174, 186.

As illustrated in Figure 6, it provides a first receiving portion 746. The first portion 746 is located in the front vertical rail 114, 118 to a first preset distance 750 below second section 174, 186 of the upper front corner element 66, 70. The first Portion 746 includes a third matching T-shaped slot 800. The third slot 800 extends from a lower end 758 of the first portion 746 and ends below one end 762 of the first portion 746. The T-slot 800 includes an opening 796 located between the upper end 762 and lower end 758 of portion 746. Opening 796 is sized and configured to allow entry of the T-shaped projection 788.

A second 766 placement feature is positioned in the first portion 746 adjacent to the third slot T-shaped 800. The second placement feature 766 is sized, configured and located to be coupled releasable by the extensible positioning element 566, in such a way that so that the first section 178, 182 of the corner element upper front 66, 70 can be secured to the first portion 746.

A second receiving portion is provided 770. The second portion 770 is placed on the vertical rail front 114, 118 to a second preset distance 774 by under the second section 174, 186 of the corner element upper front 66, 70. The second portion 770 includes a matching fourth T-shaped slot 804. Fourth slot 804 extends from a lower end 780 of the second portion 770 and ends below an upper end 782 of the second portion 770. T-slot 804 includes opening 796 located between upper end 782 and lower end 780 portion, and is sized and configured to allow T-shaped projection entrance 788.

A third feature of placement 786 placed in the second portion 770 adjacent to the fourth T-slot 804. The third characteristic of The 786 placement is sized, configured, and located to be releasably attached by the positioning element extensible 566, so that the first section of the upper front corner 66, 70 can be secured to the second portion 770.

In a final variant, as illustrated in Figure 10, the second enclosure 222 further includes a pair of 790 protective corner flaps releasably attached. The flaps are sized, configured, and located to cover the first 746 and second 770 reception portions attached to each front vertical rail 114, 118.

Although one has been illustrated and described in detail embodiment of the present invention, it should be understood that This invention is not limited thereto and may be practiced otherwise within the scope of the following claims.

Claims (35)

1. A playground adapted so that it is convertible for use as a crib, changing table or bunk bed comprising: a first rigid enclosure (14) having a part open top (18), a floor (22), a front wall (26), and at least one surrounding wall connected to the front wall; said first enclosure (14) having a rigid frame (46) said floor (22) comprising: a flat top floor panel (130) attached to the front wall (26) and the surrounding wall, a flat reinforcement panel (142) having substantially the same flat dimensions as the floor panel flat top (130) and having at least four portions of clamping arms (158, 166) that extend outward and join fixedly to said frame (46), means of reversibly reducing the height of at least a portion of the front wall (26), from a first position at the top to at least one second position below the top, thus maintaining the structural rigidity of the playground (10), a second enclosure (222), being dimensioned said second enclosure to fit substantially within the first enclosure (14) and having an open top (226), a lower part (246) and at least one surrounding wall, means to detachably support said second enclosure (222) within the first enclosure (14) to at least one default distance from the top of the first enclosure (14), a safety strap assembly (258) for secure the playground (10) to a parent's bed (262), wherein the playground (10) is useful as a cradle when the front wall is in the first raised position and the second enclosure (222) is supported by the support means; where the playpen (10) is useful as a mute table when the front wall is then lowered to one of its second positions, and where the playpen (10) is useful as a bunk when the safety strap assembly (258) is properly positioned and the playground (10) is secured to the parent's bed (263), characterized in that the flat floor reinforcement panel (142) has an upper surface fixedly attached to the lower surface from the flat top floor panel (130). 2. A playground according to claim 1, where the surrounding wall of the first rigid enclosure (14) comprises a rear wall (30), a first side wall (34) and a second side wall (38); said enclosure being of a first height default (42); said rigid frame (46) being formed in the upper part by upper parallel horizontal rails front (50) and rear (54) and first (58) and second (62) upper lateral horizontal rails and two elements of upper front corner (66, 70) and two corner elements upper rear (74, 78) in cooperation with them, and being formed adjacent to the ground by horizontal rails front (82) and rear (86) and first lower parallels (90) and second (94) lower parallel horizontal rails sides and four lower corner leg elements (98, 102, 106, 110) in cooperation with them, and a couple of lanes front verticals (114, 118) and a pair of vertical rails rear (126) in further cooperation with the two upper front corner and the two corner elements upper rear and the four corner leg elements lower; said rigid frame supporting the ground, the front wall, rear wall, first side wall and second side wall; said portions being fixedly mounted fastening to each of the parallel horizontal rails lower front and rear and the first and second lateral lower parallel horizontal rails; each corner element being constructed upper front of two separable complementary sections of reversible shape (174, 178, 182, 186), the first of said sections (178, 182) to one end (190, 194) of the front upper horizontal rail and the second of said sections (174,186) to the upper end (198, 202) of one of the front vertical rails, supporting said upper front corner elements the rail upper front horizontal in its first position; receiving means (210, 214) fixedly mounted to each front vertical rail to receive the first section of an upper front corner element and that maintains reversible shape the upper front horizontal rail in al minus a second lower position, thus maintaining the structural rigidity of the playground when the lane upper front horizontal is in one of the second positions; the surrounding wall of the second enclosure (222) comprises a rear wall (230), a front wall (234), first (23) and second (242) side walls; at least one pair of alignment means (266) to through which the belt assembly is directed safety to keep the safety strap assembly in horizontal orientation and prevent lifting or buckling of the play park when used as a bunk bed; and at least one pair of fixing means (270) for fasten the safety strap assembly to the playground; where the playground is ready for use as a bunk when the upper front horizontal rail is in one of the second positions, the second enclosure is supported by the second supporting means of the enclosure, the strap assembly security is directed through one of the means of alignment, fixed to one of the fixing means and is positioned properly and secured to the parent's bed. 3. A play park adapted to form convertible for use as a crib, changing table and bunk bed as described in claim 1, where the means for supporting the separable form said second enclosure within the first enclosure to at least a predetermined distance from the top of the first enclosure additionally comprises: first, second, third and fourth hangers support, each of said support hangers having a first end, a second end, an inner side and an outer side and having a curved hook portion arranged in said first extreme; said portion being dimensioned and configured hook to fit by friction on the first enclosure and on one of the first and second lateral horizontal rails superior; additionally including each of said support hangers at least two circular holes, extending said holes from the inner side to the outer side of said hangers, at least two spring button housings, with said housings arranged on the outer sides of said support hangers adjacent to said holes, including each of said spring button housings an opening for a finger; two support bars, each having said bars a first end and a second end and being sized and configured to extend between one of the first and second support hangers and one of the third and fourth support hangers when said support hangers are arranged on the first enclosure and one of the first and second upper lateral horizontal rails, each having said support bars a spring button mounted on the first end and at the second end, being dimensioned and configured said spring button to engage with said spring button; so when the first and second ends of the support bars are inserted into the support hanger holes, and the support hangers are arranged on the first enclosure and one of the first and second upper side horizontal rails, the buttons spring will detachably engage with the spring buttons from the hangers, thus providing a support platform for the second enclosure. 4. A convertible playground as in the claim 2, wherein the rigid frame comprises further: means for articulating mounting of the front and rear upper horizontal rails to the front upper corner elements and to the elements of upper rear corner, respectively; frame locking devices placed on center points of upper horizontal rails front and rear hingedly mounted to them and that allow said upper rails to articulate towards down from the open top of the first enclosure; means for articulating mounting of the first and second horizontal lateral rails above the upper front and rear corner elements; frame articulation devices placed at center points of the first and second lanes upper side horizontals that are mounted so that articulated to them and that allow each of said rails are hinged down from the top open of the first enclosure; means for articulating mounting of the first and second horizontal lateral rails below the lower front and rear corner elements; frame articulation devices placed at center points of the first and second lanes horizontal lower sides that are mounted so that articulated thereto and that allows each of said lanes articulate downward from the floor of the first enclosure; means for articulating mounting of the rear lower horizontal rails and front to the lower front and rear corner elements, respectively; and frame articulation devices placed at center points of horizontal rails rear and front bottoms that are mounted so articulated to them and that allow each of said rails is hinged up from the ground of the first enclosure; where said frame can be quickly folded in a compact package for transport and storage releasing the locking devices placed on the rails rear and front upper horizontals and pressing the upper horizontal rails down, pulling the same time up of a crank fixed to the ground, causing this way that the lower and lower lateral horizontal rails upper and lower rear horizontal rails and The front rails bend up and the vertical rails move inward. 5. A convertible playground as in the claim 4, wherein the soil further comprises: at least four reinforcing straps, having said first and second end straps and being mounted fixedly to the bottom surface of the reinforcement panel; two of said straps being secured in their first and second ends to each of the lanes front and rear lower horizontals, respectively, and two of said straps being secured in first and second ends to each of the first and second lanes horizontal lower lateral, respectively; four padded covers, said covers mounted securely to the floor panel and to at least one of the the clamping portions, thus protecting the frame hinge devices attached to rails front and rear lower horizontals and attached to the first and second horizontal lower lateral rails; a flexible loop, said tie to a central portion of the top surface of the panel ground, thereby providing a crank; and a hollow leg member attached to a portion center of the bottom surface of the reinforcement panel to provide support to it. 6. A convertible playground set up as a bunk bed, as described in claim 2, wherein the second enclosure additionally comprises: a detachable rigid floor element that is sized to fit within said second enclosure; means for removably fixing the second enclosure to the playground; and an elongated front flap for receive the rigid floor element and which is dimensioned to folded over the lowered front wall and attached to the outside of the playground, thus preventing the formation of any gap between the playground and the parents' bed. 7. A convertible playground set up as a bunk bed, as described in claim 6, wherein the second enclosure additionally comprises a floor area flexible. 8. A convertible playground set up as a bunk bed, as described in claim 6, wherein the second enclosure further comprises a floor area of mesh, serving said surface to provide ventilation between the separable floor element and the second surface of floor of the enclosure. 9. A convertible playground set up as a bunk bed, as described in claim 8, wherein the mesh floor surface additionally includes reinforcement fixedly mounted to a lower part of said ground surface. 10. A convertible playground set up as a bunk bed, as described in claim 6, wherein the detachable rigid floor element has a top surface and a bottom surface and is covered with a washable cloth and padded on its upper surface. 11. A convertible playground set up as a bunk bed, as described in claim 10, where the detachable rigid floor element is segmented into at least two closely aligned segments, is capable of folding, and is covered with a washable and padded fabric on its upper surface; said rigid floor element serving as an enclosure for the playground when folded for transport and storage. 12. A convertible playground set up as a bunk bed, as described in claim 11, where the detachable rigid floor element further comprises the least one pair of reversibly detachable fixing means and The second enclosure comprises a series of openings sized and arranged to allow the fixing means to secure the floor element to means to detachably support said second enclosure. 13. A convertible playground set up as a bunk bed, as described in claim 11, where the detachable rigid floor element further comprises the least one pair of reversibly detachable fixing means and the first and second side walls of the playground further comprise a series of sized openings, configured and arranged to allow the fixing means secure the floor element to the first and second walls lateral. 14. A convertible playground set up as a bunk bed, as described in claim 2, wherein the height of rear wall, front wall, first and second side walls of the second enclosure can be extended from a first position to at least one more second position large, thus allowing the bottom of said enclosure to keep at least two different heights relative to a bed parental. 15. A convertible playground set up as a bunk bed, as described in claim 14, where the back wall, the front wall, the first and second walls sides of the second enclosure are formed of a flexible material, and further comprising: at least one fixing means arranged on the rear wall, front wall, first and second walls lateral; and said fixing means allow the material of the rear wall, of the front wall, of the first and second side walls are folded and limited by said fixing means when said walls are arranged in each one of the first position and an intermediate position, eliminating therefore excessive loose material within the second enclosure. 16. A convertible playground set up as a bunk bed, as described in claim 15, which additionally comprises a flexible coating for the zipper portions to prevent harm to a baby or child little. 17. A convertible playground set up as a bunk bed as described in claim 14, wherein the second enclosure additionally comprises: a first pair of fixing means reversibly detachable to fix a first side edge from the front wall to a leading edge of the first wall side; a second pair of fixing means reversibly detachable to fix a second side edge from the front wall to a front edge of the second wall side; and allowing, therefore, that the second enclosure serve as a bathtub. 18. A convertible playground set up as a bunk bed, as described in claim 17, which additionally comprises a pair of padded covers, said covers extending over the zippers to prevent harm to a baby or young child. 19. A convertible playground set up as a bunk bed, as described in claim 6, which further comprises: first servings of at least two pairs of reversibly detachable fixing means, said first portions fixedly secured to a lower part of the elongated front flap; at least two second portions of said media fixing, said second portions being secured fixedly to a portion of the front wall of the first enclosure; and Therefore, when the first portions of the pair of the reversibly detachable fastening means are second lots are secured, any material will be secured excessive front flap, thereby preventing the formation of any gap between the elongated front flap and the element rigid floor of the second enclosure. 20. A convertible playground set up as a bunk bed, as described in claim 2, wherein the front wall is formed of flexible material and comprises additionally means for reversibly lowering the wall front, ensuring any excessive flexible material, and preventing an infant or toddler from being trapped by openings in the front wall of the first enclosure when the rail upper front horizontal is lowered from the first position higher than one of the second lower positions. 21. A convertible playground set up as a bunk bed, as described in claim 20, where the means of reversibly lowering the front wall further comprises: a first set of fastening elements reversibly separable arranged adjacent to an edge top of the front wall adjacent to an intersection of the first side wall and a first side wall lead; a second set of fasteners reversibly separable arranged adjacent to the edge top of the front wall adjacent to an intersection of the second side wall and a second side wall lead; said elements being spaced apart fasteners reversibly separable by no more than two inches; and therefore, when the horizontal rail upper striker is lowered from the first upper position to one of the second lower positions, the elements of reversibly detachable fasteners can be opened as required necessary to allow the front wall to be lowered while ensuring any flexible material excessive. 22. A convertible playground set up as a bunk bed, as described in claim 2, wherein the safety strap assembly additionally comprises: a strap element having a first end and a second extreme; a resistance plate element having at minus two vertically aligned grooves arranged centrally, in which the strap element is fixed, in such a way so that the first end and the second end are equidistant from the plate element; fixing cooperation means arranged in the first end and the second end of the strap element for reversible connection to one of the pairs of fixing means of the safety strap; and adjusting means for adjusting the length of the strap element and tighten it after connecting the media of attachment cooperation to one of the media pairs of fixation of the safety strap; where, the strap element is positioned properly when arranged under a mattress and above a surface on which the mattress rests on the children's bed parents and is held in place by the resistor arranged vertically on one side of the site of the bunk, opposite the parents' bed, and the element of strap is tight so that the bunk remains fixed to the parents bed. 23. A convertible playground set up as a bunk bed, as described in claim 2, where the first and second sections of the corner elements front upper and fixedly mounted receiving means to each front vertical rail to receive the first section of the upper front corner elements and that hold the reversible shape the upper front horizontal rail in al minus a second lower position further comprise: a T-shaped projection that extends from a lower end of the first section of the upper front corner to an upper end of said section; an extensible locating element arranged in said first section adjacent to said projection in the form of T; a first matching T-shaped slot that extends from a lower end of the receiving means towards an upper end of said means and inside the second upper front corner element section and ending below an upper end of said element; at least two placement characteristics arranged in said second section and said receiving means adjacent to said first T-slot, said fitting characteristics dimensioned, configured and arranged to be detachably coupled by said element of extensible location, so that the first section of the upper front corner element can be secured to the second section and receive media in at least two positions; and a one-way, secure entry control, arranged at the lower end of the T-shaped slot in the reception means, said control allowing the installation of the T-shaped projection into the first T-shaped slot and preventing easy withdrawal from it. 24. A convertible playground set up as a bunk bed, as described in claim 23, where The second enclosure additionally includes a pair of flaps of protective corner detachably attached, said flaps sized, configured, and arranged to cover the receiving means attached to each front vertical rail. 25. A convertible playground set up as a bunk bed, as described in claim 2, which further comprises: a canopy frame, said frame having canopy a curved top, a front, a part rear and being dimensioned, configured and arranged to detachably attached to the first and second rails upper lateral parallels of the berth; a canopy cover, said cover of flexible material and detachably attached to said canopy frame; and a mesh panel, being dimensioned, configured and arranged said panel to cover removably the front and rear of the canopy frame, thus providing ventilation and protection against insects. 26. A convertible playground configured as a bunk, as described in claim 4, wherein the rigid frame is formed of hollow tube, the rear and front lower horizontal rails each have a first portion and a second portion, each portion having an inner end and an outer end, and the frame articulation devices arranged at central points of said rails comprise
further: a connecting frame, said frame being hingedly mounted to the inner ends of each of the first and second portions of said lanes front and rear lower horizontals; said connecting frame including a pair of locking holes; a pair of spring loaded buttons mounted within said horizontal rails, being these buttons are sized, configured and arranged to engage with the locking holes in the connecting frame when the first and second portions of said lanes are collinear; and means for pushing both buttons in to clear the locking holes in the frame connection simultaneously, thus allowing them to articulate the lower horizontal rails up. 27. A convertible playground set up as a bunk bed, as described in claim 26, which further comprises: means to lock buttons loaded with spring within the horizontal rails to free the locking holes in connecting frame after pushing the buttons in when the first and second portions of these lanes are collinear, thus allowing the easy folding of the rigid frame; and means to unlock buttons loaded with spring after folding of the rigid frame, allowing, Therefore, the buttons are attached within the frame of connection when the rigid frame is deployed. 28. A convertible playground set up as a bunk bed, as described in claim 4, wherein the rigid frame is formed of hollow tube, the rails front and rear lower horizontals have each of them one a first portion and a second portion, each having portion an inner end and an outer end, and the frame hinge devices placed at points center of said lanes additionally comprise: an external connection housing, being formed said connection housing of rigid material and being hingedly mounted to the inner ends of each of the first and second portions of said lanes front and rear lower horizontals; an inner spring housing, being hingedly mounted said spring housing to the inner ends of each of the first and second portions of said front lower horizontal rails and rear so that said articulation posts are collinear with the studs of the outer connection housing; and said inner spring housing being arranged within the external connection housing and being dimensioned, configured and arranged to friction fit around the inner ends of each of the first and second portions of said lanes and with the ability to expand within said external connection housing to allow articulation of said inner ends when the rigid frame is folded, thus providing a means of blocking said ends in collinear alignment when the rigid frame is unfolded. 29. A convertible playground set up as a bunk bed, as described in claim 4, wherein the rigid frame is formed of hollow tube, the rails front and rear lower horizontals each have them a first portion and a second portion, each having portion an inner end and an outer end, and the frame hinge devices placed at points center of said lanes additionally comprise: a spring housing, being mounted said spring housing hinged on a pair of mounting pins on the inner ends of each of the first and second portions of said horizontal rails lower front and rear; including said first dock housing and second pairs of curved alignment grooves and first and second pairs of position retainers; first and second alignment pins, said pins being mounted parallel to said locking pins. mounting and being spaced out from the ends interiors of the first and second portions of said lanes front and rear lower horizontals; being dimensioned, configured and arranged said alignment pins to slideably fit within said curved alignment grooves; each of said pairs of oil seals positioning are spaced apart by a distance slightly less than a diameter of one of the rails front and rear lower horizontals; and therefore, when the first and second portions of said front lower horizontal rails and rear are collinear, said lanes will be within said spring housing, and when said rails are articulated relative to each other to fold the playground, the retainers will be pushed against the rails by the resistance of the housing spring, causing the housing to extend apart, serving such resistance to maintain alignment collinear of the rails when mounting the playground. 30. A convertible playground set up as a bunk bed, as described in claim 2, which further comprises height adjustment means to change the height of the bunk, such that the rail level front upper horizontal, when arranged in a second position, is substantially uniform with a top of a parent's bed mattress. 31. A convertible playground as described in claim 4, further comprising: at least one locking safety clip, said locking fastener being formed of elastic material and further comprising: an elongated element, said element having a first end and a second end and being dimensioned and configured to extend beyond each end of one of the frame hinge devices placed at points center of the front lower horizontal rails and rear; first and second coupling portions of rail, said first and second ones being fixedly mounted portions at the first and second ends of said element elongated, respectively; being dimensioned, configured, and arranged said coupling portions to fit by friction and separable shape on each of the horizontal rails lower front and rear; and therefore, when the playground is assembled convertible, the safety clip is placed over one of the frame hinge devices, and portions of rail coupling are positioned on one of the rails lower horizontal front and rear, said rails will be limited to articulation upward until remove the safety clip. 32. A convertible playground as seen described in claim 31, wherein the safety clip further comprises: a flexible fixing element, having said fixing element a first end and a second end; said element of fixing at its first end to said safety fastener; said fixing element having means for fixing permanently to one of the lower horizontal rails front and rear adjacent to the articulation device, said means being permanently attached to said element fixing at its second end; and so the safety fastener will be limited within the close proximity of the joint, thus preventing its accidental loss. 33. A convertible playground set up as a bunk bed, as described in claim 2, wherein the first and second sections of the front corner elements top and receiving means fixedly mounted to each front vertical rail to receive the first section of the upper front corner elements and keep in shape the upper front horizontal rail reversible in at least one second lower position additionally comprise: a T-shaped projection that extends from a lower end of the first section of the upper front corner to an upper end of said section; an extendable positioning element arranged in said first section adjacent to said projection in the form of T; a matching T-slot that is extends from a lower end of the second section of the upper front corner element and ending below an upper end of said element; a first placement feature arranged in said second section adjacent to said second groove T-shaped, being dimensioned, configured and arranged said first placement feature to be fitted seamlessly detachable by said extensible positioning element, so than the first section of the upper front corner element can be secured to the second section; a first receiving portion, being arranged said first portion on the front vertical rail at a first preset distance below the second section of the upper front corner element and which includes a matching third T-shaped groove extending from a lower end of said first portion and ending below from an upper end of said first portion; a second placement feature disposed in said first portion adjacent to said third groove T-shaped, being dimensioned, configured and arranged said second placement feature to be coupled so detachable by said extensible positioning element, so than the first section of the upper front corner element can be assured to the first portion; a second receiving portion, being arranged said second portion on the front vertical rail at a second preset distance below the second section of the upper front corner element and including a fourth matching T-shaped groove extending from one end lower portion of said second portion and ending below a upper end of said second portion; and a third placement feature arranged on said second portion adjacent to said fourth T-shaped slot, being dimensioned, configured and said third placement feature arranged to be detachably coupled by said locating element extensible, so that the first section of the upper front corner can be secured to the second portion. 34. A convertible playground set up as a bunk bed, as described in claim 2, wherein the first and second sections of the front corner elements top and receiving means fixedly mounted to each front vertical rail to receive the first section of the superior and shape-keeping front corner elements the upper front horizontal rail reversible in at least one second lower position additionally comprise: a shortened T-shaped projection arranged between a lower end of the first section of the upper front corner, and an upper end of said section; an extendable positioning element arranged in said first section below said projection in the form of T; a second slot shaped like a T coincident extending from a lower end of the second upper front corner element section and ending below an upper end of said element, including said slot an opening arranged between the upper end and the lower end of said element, and being dimensioned and configured to allow entry of said projection in the form of T; a first placement feature arranged in said second section adjacent to said second groove T-shaped, being dimensioned, configured and arranged said first placement feature to fit snugly separable by said extensible positioning element, in such a way so that the first section of the front corner element top can be secured to the second section; a first receiving portion, being arranged said first portion on the front vertical rail at a first preset distance below the second section of the upper front corner element and which includes a matching third T-shaped groove extending from a lower end of said first portion and ending below of an upper end of said first portion, including said T-slot an opening arranged between the end upper and lower end of said portion, and being sized and configured to allow entry of said T-shaped projection; a second placement feature disposed in said first portion adjacent to said third groove T-shaped, being dimensioned, configured and arranged said second positioning characteristic to be coupled in a way separable by said extensible positioning element, in such a way so that the first section of the front corner element superior can be secured to the first portion; a second receiving portion, being arranged said second portion on the front vertical rail at a second preset distance below the second section of the upper front corner element and including a fourth matching T-shaped groove extending from one end lower portion of said second portion and ending below a upper end of said second portion, including said slot T-shaped an opening arranged between the upper end and the lower end of said portion, and being dimensioned and configured to allow the entry of said projection in the form of T; and a third placement feature disposed in said second portion adjacent to said fourth groove T-shaped, being dimensioned, configured and arranged said third placement feature to be coupled so separable by said extensible positioning element, in such a way so that the first section of the front corner element top can be secured to the second portion. 35. A convertible playground set up as a bunk bed, as described in claim 34, where the second enclosure additionally includes two sets of flaps corner protectors detachably attached, being dimensioned, configured and arranged said flaps to cover the second sections of the front corner elements upper and the first and second receiving portions fixed to each front vertical rail.