RU219332U1 - convertible bed - Google Patents

Abstract

The utility model relates to the furniture industry, namely to a convertible sofa bed that can be used as an alternative to traditional sofa beds and armchair beds. The bed contains: a frame (5) having a support part (7), a fixed frame (8) and a swivel frame (9); transformation mechanisms (10) connected to a fixed frame (8) and a rotary frame (9) of the frame; a means for fixing (11) the swivel frame (9) of the frame in the raised position and a mattress (6) connected to the fixed (8) and swivel (9) frames of the frame and containing the upper first layer (1) and the second layer (2) made transversely divided in the joint area of the movable (8) and swivel (9) frames of the frame over the entire thickness to form adjacent parts (2a, 2b). The first layer (1) of the mattress is made integral, and the second layer (2) is connected to the first one so that parts (2a, 2b) of the second layer can be opened and the first layer (1) can be elastically deformed when the swivel frame (9) is lifted. At the same time, the mattress (6) additionally contains a means of fastening (3) to the movable (8) and rotary (9) frames of the frame, which ensures the bending of the mattress. The technical result is an increase in the thickness of the mattress of the convertible bed. 8 w.p. f-ly, 20 ill.

Description

[01] Field of technology

[02] The utility model relates to the furniture industry, namely to a convertible sofa bed that can be used as an alternative to traditional sofa beds and chair beds.

[03] State of the art

[04] In traditional sofa beds, the sleeping place is usually formed from several soft elements. At the joints of these elements, there are protrusions or depressions associated with the design features of the transformable parts. Transformable furniture with a solid thin mattress is also used, which is completely bent when folded, which during long-term operation leads to deformation of the fold in the unfolded state. That is, unlike conventional beds, the lying surface in convertible furniture is not flat. Regular use of such sleeping furniture is not comfortable and in the long run can lead to health problems.

[05] Thus, there is a need to develop a convertible bed structure with a full mattress having sufficient thickness, and which could provide the comfort of a standard mattress for a conventional bed.

[06] The closest analogue of the utility model is a transformable bed described in the publication of the application of Japan JP 2004242798 A, 02.09.2004. The bed contains a frame having a support part, a fixed frame and several swivel frames, mechanisms for transforming the swivel frames, means for fixing the swivel frames in a raised position, and a mattress connected to the frames. The bed mattress contains three layers: a top layer made of foam material with notches to improve flexion, an intermediate layer made of separate parts separated in transverse planes, and a base layer made of a material based on synthetic resin fibers. In this case, the elements of the intermediate layer are attached to the main layer using tapes. The specified design of the bed allows you to bend the mattress at a small angle to ensure the rise of the backrest. However, such a configuration is not suitable for fully transforming a bed into a sofa, when a larger angle of bending of the parts is required, which makes it impossible to produce a thick foldable mattress. In addition, the presence of notches in the upper layer of the bed mattress and the absence of its fastening to the intermediate layer will inevitably lead to the formation of unevenness in the bed in the form of bumps, depressions or creases during prolonged use of the mattress.

[07] Thus, the technical problem that the utility model aims to solve is the impossibility of providing in a convertible bed the characteristics of a traditional bed in the unfolded position. These characteristics include a sufficient thickness of the mattress (more than 200 mm), as well as the possibility of forming an even sleeping place in the unfolded state without creases and depressions that form during repeated bending.

[08] Disclosure of the utility model

[09] The technical result of the utility model is to increase the thickness of the mattress while maintaining the possibility of transforming the bed into seating furniture (sofa or armchair).

[010] The specified technical result is achieved in the claimed utility model due to the fact that the transformable bed contains: a frame having a support part, a fixed frame and a swivel frame; transformation mechanisms connected to the fixed frame and the swivel frame of the frame; means for fixing the swing frame of the frame in a raised position; and a mattress connected to the fixed and swivel frames of the frame and containing the upper first layer and the second layer, made transversely divided in the joint area of the movable and swivel frames of the frame throughout the thickness to form adjacent parts. The first layer of the mattress is made integral, and the second layer is connected to the first one so that parts of the second layer can be opened and the first layer can be elastically deformed when the swivel frame is lifted. At the same time, the mattress additionally contains a means of fastening to the movable and swivel frames of the frame, which ensures the bending of the mattress.

[011] The specified result is also achieved in private implementations of the useful model due to the fact that

[012] the means for attaching the mattress to the movable and swivel frames of the frame is made in the form of a flat base made of inelastic material, transversely divided over the entire thickness in the region of separation of parts of the second layer and connected to the second layer, as well as to the fixed frame and the swivel frame;

[013] the flat base of the mattress is made of a material based on wood or metal or plastic;

[014] the first layer of the mattress is made of foam;

[015] the second layer of the mattress is made of a foam material having greater rigidity relative to the material of the first layer;

[016] the second layer of the mattress is made of spring blocks;

[017] the area of separation of the parts of the second layer of the mattress, runs across the frame (5) or along the frame, or diagonally;

[018] the thickness of the first layer of the mattress is not more than 150 mm;

[019] The first layer and/or the second layer and/or the base of the mattress includes several sublayers.

[020] Unlike analogs, the claimed bed uses a new mattress design, in which the first (upper) layer is made integral (without cuts and cavities), and the second (carrier) layer is connected to it and divided into two or more parts in the transverse direction over the entire thickness. This allows you to increase the thickness of the mattress up to 400 mm and more while maintaining the possibility of folding it to an angle sufficient to transform the furniture up to 180°. In addition, this design of the bed provides easy transformation with a large mattress thickness, reduced wear during multiple transformations (folding) and the elimination of the formation of uneven mattresses in the folding area.

[021] Brief Description of the Drawings

[022] The utility model is illustrated by drawings, where:

figure 1 shows a general view of the bed at an angle in the unfolded state,

figure 2 shows a side view of the bed in the unfolded state,

figure 3 shows the bed at an angle when folded,

figure 4 shows the side view of the bed in the folded state,

figure 5 shows an angled view of the bed frame in the unfolded state,

figure 6 shows a side view of the bed frame in the unfolded state,

figure 7 shows an angled view of the bed frame when folded,

figure 8 shows a folded side view of the bed frame,

figure 9 shows the front view of the bed frame in the folded state,

figure 10 shows a general view of the mattress in the unfolded state;

figure 11 shows a longitudinal section of the mattress in the unfolded state,

figure 12 shows a general view of the mattress in the folded state,

figure 13 shows the side view of the mattress in the folded state,

figure 14 shows a longitudinal section of the mattress in an alternative embodiment with a spring block,

figures 15-20 show alternatives for the transverse separation of the second layer.

[023] Structural elements are indicated in the figures by the following positions:

1 - the first layer of the bed mattress;

2 - the second layer of the bed mattress;

2a - the first part of the second layer of the bed mattress;

2b - the second part of the second layer of the bed mattress;

3 - flat bed mattress base;

4 - area of separation of the second layer of the bed mattress;

5 - bed frame,

6 - mattress,

7 - supporting part of the frame,

8 - fixed frame frame,

9 - swivel frame frame,

10 - transformation mechanism,

11 - means of fixing the swivel frame in the raised position,

12 - synchronizer of transformation mechanisms,

13 - support arm.

[024] Implementation of the utility model

[025] The claimed sofa bed is a structurally single product containing a frame (5) and a mattress (6) fixed on the frame as the main elements.

[026] The frame (5) is preferably made of metal (eg steel) and consists of connected tubular and/or flat and/or corner profiles (elements). It is also possible to make the frame from wooden materials, plastic or their combination with metal materials. The frame (5) contains a support part (7), as well as a fixed frame (8) placed on it and at least one rotary (lifting) frame (9), which are connected to the support part (9).

[027] The support part typically includes a support frame of connected longitudinal and transverse elements (profiles), as well as support legs.

[028] Fixed (8) and rotary (9) frames, as a rule, consist of longitudinal and transverse elements connected into a single structure. In the unfolded state, the frame beds (8) and (9) are located side by side in the same horizontal plane to form a single bed. Said frames (8) and (9) are interconnected by at least two transformation mechanisms (10), which provide lifting of the rotary frame (8) relative to the fixed frame (9).

[029] The transformation mechanism (10) can be made in the form of two arcuate parts, placed one inside the other, with the possibility of moving the movable part along an arcuate path along the fixed part (see figure 8). Other embodiments of the mechanism are also possible, for example, in the form of a complex hinge providing mutual movement of the parts along an arc.

[030] The frame (5) also provides a means of fixing (11) the swing frame (7) in the raised position. Said means (11) may have various configurations widely known to the person skilled in the art. In particular, the locking means may include a telescopic mechanism with a latch and a plurality of holes, connecting the swing frame (9) and the supporting part (7) of the frame, allowing the swing frame to be fixed in a predetermined angular position. Other embodiments of the fixation means are also possible, for example, using gear racks and the like.

[031] The bed frame (5) may also include additional elements inherent in standard convertible frames, in particular, synchronizers (12) of the transformation mechanisms, support arms (13), springs, hinges, etc.

[032] The mattress (6) of the bed includes the first (upper) layer (1), the second layer (2) and the means of attaching (3) the mattress to the movable (8) and rotary (9) frames of the frame.

[033] The first layer (1) is a bonding layer and is made in one piece, without cuts and cavities. Said layer can be made of an elastic elastic material, in particular a foam material, such as polyurethane foam (foam rubber).

[034] The second (middle) layer (2) performs a supporting (bearing) function and is attached to the first (1) over the entire contact surface of the layers (1) and (2). In this case, the second layer (2) is divided into two parts (2a, 2b) by a transverse region (4) in the form of a cut passing through the entire thickness of the second layer (2) in the junction zone of the fixed (8) and rotary (9) frame frames. Thus, the parts (2a, 2b) of the second layer in the unfolded state are joined to each other along the specified area (4).

[035] The separation area (4) of the parts (2a, 2b) can be made in the form of a plane passing perpendicular to the second layer (2) (see Fig. 10-14) or at an angle, or can form a broken or curved surface (Fig. 15-20). The area (4) can then run across the bed frame (parallel to the short side), along it (parallel to the long side) or diagonally. Also in the second layer (2) it is possible to perform several separation areas (4). These areas (4) may run in parallel or may be associated with the formation of a shaped separation surface of the parts of the second layer (2). In one embodiment of the utility model, the second layer (2) can be made of foamed material, such as polyurethane foam (foam rubber). In this case, the second layer (2) should preferably have a greater rigidity with respect to the first layer (1). This will allow the mattress to deform less during operation. In another embodiment, the implementation of the second layer (2) can be made of spring blocks (Fig. 14). The design features of the mattress allow you to combine spring blocks and foam rubber with different properties and characteristics to obtain different properties of the mattress.

[036] The thickness of the first (1) and second (2) layers may vary depending on the dimensions of the bed. As a rule, the second layer (2) has a thickness significantly greater than the first one in order to allow easy folding of the bed, as well as to prevent its deformation. It is preferable to make the first layer (1) not more than 150 mm thick, which makes it easy to fold the mattress. More optimal thickness of the first layer is up to 100 mm. The overall thickness of the mattress can then vary, in particular from 100 mm to 400 mm. However, in this bed it is possible to use mattresses of greater thickness due to the use of a composite second layer, which in any case will not interfere with the easy folding of the mattress.

[037] The means of fastening (3) of the mattress, in the preferred embodiment of the utility model, is a flat base in the form of a lower (third) layer attached to the second layer (2) along its entire lower surface and to frames (8) and (9) of the frame (5). The base (3) is also divided into two or more parts in the transverse direction in the separation area (4) (the joint area of the frames 8 and 9) to allow the parts of the second layer (2) to open. The base (3) is made of a hard, non-elastic material, such as a material based on wood (plywood), plastic or metal. In this case, the base is attached to the frames (8) and (9) of the frame (5) of the bed, for example, by means of screws. This design of the attachment means makes it easy to fold the mattress. However, other embodiments of the fastening means (3) are also possible, for example, it can be made in the form of loops connecting the second layer (2) and frames (8) and (9) of the frame (6).

[038] Each of said layers of the mattress (6): the first layer (1), the second layer (2) and the base (3), may consist of several sublayers of different materials to form a multilayer mattress structure. In this case, the mattress (6) may additionally include a layer of outer upholstery made of fabric, leather or other material.

[039] The bed functions as follows

[040] In the unfolded state, the fixed (8) and swivel (9) bed frames are joined together and are in the same horizontal plane. It should be noted that the docking of frames (8) and (9) does not imply their direct contact, since in the unfolded state there is a small gap between them, which increases when folded. Mattress (6) due to the presence of a solid first layer (1), supported by more rigid parts (2a and 2b) of the second layer (2) and frames (8) and (9), forms a flat bed. When folding the bed, the user lifts the edge of the swivel frame (9), and due to the transformation mechanisms (8), it performs a rotational movement in an arc, i.e. rotates relative to the "imaginary" axis, which moves horizontally and vertically. The swivel frame (9) is fixed by means (11) in the raised position, forming the back of a sofa or chair. In this case, frames (8) and (9) open parts (2a) and (2b) of the second layer (2), as well as parts of the base (3) of the mattress (6) (if any) creating an elastic deformation of the first layer (1). When refolding back, the user unlocks the locking means (11) in any way known to the specialist and lowers the swing frame (9) to a horizontal position. The mattress (6) due to the elastic upper layer (1) returns to the horizontal plane without the formation of creases and depressions in the folding zone. In this case, the second layer (2), base (3) and frames (8) and (9) perform a load-bearing function, keeping the first layer (1) in an even state.

[041] Thus, the use of the described convertible bed will increase the comfort of the bed, which will be comparable to the operation of a traditional bed with a solid mattress.

Claims (9)

1. Transformable bed containing a frame (5) having a support part (7), a fixed frame (8) and a swivel frame (9), transformation mechanisms (10) connected to the fixed frame (8) and the swivel frame (9) of the frame, a means of fixing (11) the swivel frame (9) of the frame in the raised position and a mattress (6) connected to the fixed (8) and swivel (9) frames of the frame and containing the upper first layer (1) and the second layer (2) is made transversely divided in the junction area of the movable (8) and rotary (9) frames of the carcass over the entire thickness to form adjacent parts (2a, 2b), characterized in that the first layer (1) of the mattress is made integral, and the second layer (2) is connected to the first so that the parts (2a, 2b) of the second layer can be opened and the first layer (1) can be elastically deformed when the swivel frame (9) is lifted, while the mattress (6) is additionally contains means of fastening (3) to the movable (8) and rotary (9) frames of the frame, which ensures the bending of the mattress. 2. Transformable bed according to claim 1, characterized in that the means of attachment (3) of the mattress (5) to the movable (8) and rotary (9) frames of the frame is made in the form of a flat base made of inelastic material, transversely divided over the entire thickness in the region (4) of separation of the parts of the second layer (2) and connected to the second layer (2), as well as a fixed (8) frame and a rotary (9) frame. 3. Convertible bed according to claim 1, characterized in that the flat base (3) of the mattress (6) is made of a material based on wood or metal or plastic. 4. Convertible bed according to claim 1, characterized in that the first layer (1) of the mattress is made of foam material. 5. Convertible bed according to claim 1, characterized in that the second layer (2) of the mattress is made of a foam material having greater rigidity in relation to the material of the first layer. 6. Convertible bed according to claim 1 or 4, characterized in that the second layer (2) of the mattress is made of spring blocks. 7. Convertible bed according to claim 1, characterized in that the area (4) of separation of the parts of the second layer of the mattress (6) runs across the frame (5), or along the frame (5), or along its diagonal. 8. Convertible bed according to claim 1, characterized in that the thickness of the first layer (1) of the mattress (6) is not more than 150 mm. 9. Convertible bed according to claim 1, characterized in that the first layer (1) and/or the second layer (2) and/or the base (3) of the mattress (6) includes several sublayers.