RU216860U1 - Stilt adjustable in height - Google Patents

Abstract

The utility model relates to devices for lifting the user, in particular, to stilts used to perform work at height, requiring freedom of movement, and can be used in various construction (repair and finishing) work, such as painting, plastering, installation of suspended ceilings, installation of heating, ventilation and air conditioning systems. The stilt adjustable in height comprises a vertical post (1) having a shaped profile (2), on one side of which steps (3) are formed, turning into grooves (4), a movable element (5) placed on the vertical post (1) with the ability to move along the curly profile (2) and equipped with a latch (6) made with the possibility of placing in the grooves (4) of the curly profile (2) of the vertical post (1), the platform (7) for the foot, fixed on the movable element (5) , upper and lower leg fastening means and a lower support element (9) connected to a vertical post (1), while the movable element (5) is additionally equipped with a fuse (11) configured to block the latch (6) in the groove (4) shaped profile (2) of the vertical post (1), and the lower support element (9) includes the toe (12) and heel (13) parts and is connected to the vertical post (1) pivotally through the elastic element (14). EFFECT: increased stability of the height-adjustable stilts during its use, including in the process of adjusting the height of the foot platform above the floor surface. 8 w.p. f-ly, 7 ill.

Description

[01] Field of technology

[02] The utility model relates to devices for lifting the user, in particular, to stilts used to perform work at height, requiring freedom of movement, and can be used in various construction (repair and finishing) works, such as painting, plastering , installation of suspended ceilings, installation of heating, ventilation and air conditioning systems.

[03] State of the art

[04] In the prior art, stilts are widely known that comprise a pair of telescopic vertical support legs attached between a lower floor-contact element and a foot platform, thereby forming a parallelogram (for example, US application US2022193492A1, 06/23/2022).

[05] The described devices have a number of disadvantages. The use of double vertical racks in the design makes the stilts bulky, does not provide the natural movement of the user, and reduces mobility. In such devices, height adjustment is provided by telescopic racks, which must be fixed at the desired height each time before using the stilts.

[06] The closest analogue of the claimed utility model is a stilts adjustable in height during use, described in US patent US3660920A, 05/09/1972. The stilt includes a vertical post having a shaped profile on one side, which forms steps turning into grooves, a movable element placed on the vertical post with the ability to move along the shaped profile and equipped with a latch that can be placed in the grooves of the shaped profile of the vertical post, a platform for legs with clamping foot straps, lower support element.

[07] The disadvantages of the analogue are a complex inconvenient system for adjusting the height of the platform for the legs, insufficient stability and reliability of the stilts, both in the process of adjusting the height and in the process of using the stilts due to the lack of a safety device in the design that can block the latch from its unintentional movement along the vertical rack in the process of using the stilts, the unstable design of the lower supporting element of the stilts.

[08] Thus, the technical problem to be solved by the claimed utility model is the low reliability and performance of the device.

[09] Disclosure of the utility model

[010] The technical result of the utility model is to increase the stability of the height-adjustable stilts during its use, including in the process of adjusting the height of the foot platform above the floor surface.

[011] The specified problem is solved, and the technical result is achieved due to the fact that the height-adjustable stilt contains a vertical rack having a figured profile, on one side of which steps are formed that turn into grooves, a movable element placed on a vertical rack with the possibility movement along the curly profile and provided with a latch, made with the possibility of placing in the grooves of the curly profile of the vertical post, the platform for the legs fixed on the movable element, the upper and lower leg fastening means, and the lower support element connected to the vertical post, while the movable element additionally equipped with a fuse designed to block the latch in the groove of the shaped profile of the vertical post, and the lower support element includes the toe and heel parts and is pivotally connected to the vertical post through an elastic element.

[012] In addition, according to particular embodiments of the utility model:

[013] - the lock of the movable element has a figured cutout that responds to the grooves

the shaped profile of the vertical post, and the shaped profile of the vertical post on the other side has a wavy shape, which ensures that the latch is installed in the grooves when the latch moves down relative to the vertical post;

[014] - the movable element is box-shaped, and the latch is placed in the transverse groove of the movable element;

[015] - the vertical post has a rectangular cross section;

[016] - the upper leg fastening means are made in the form of a shin fixation element and at least one clamping strap for the lower leg, and the lower fastening means are made in the form of at least one clamping strap for the foot;

[017] - element fixing the lower leg is made in the form of a bracket;

[018] - the elastic element is located perpendicular to the upright or between the bottom of the upright and the toe of the lower support element;

[019] - the elastic element is made in the form of a spring;

[020] - the lower support element includes a sole made of a material that creates friction.

[021] The described particular cases of the implementation of the utility model are also aimed at improving the stability of the stilts. However, they are not the only possible embodiments of the utility model. At the same time, the technical result of the utility model is achieved without the use of these additional features.

[022] In the claimed technical solution, the height adjustment of the user in the process of using stilts is achieved due to the presence of a vertical stand having a figured profile, on one side of which steps are formed that turn into grooves, a movable element, on which the platform for the foot is located and which includes a latch, made with the possibility of placement on the steps and in the grooves of the curly profile of the vertical rack. The design of the movable element ensures the movement of the latch along the shaped profile of the vertical post (up - down), and the change of the horizontal position of the latch (forward - backward). The presence on the shaped profile of a vertical rack of steps turning into grooves ensures reliable placement of the latch on the step during intermediate movement and the stability of the user when placing the latch in the groove at the desired height. The upper and lower leg attachments secure the wearer's lower leg and foot, which also improves stability when moving and adjusting the height on the stilts. The fuse prevents unintentional movement of the latch, blocking it in the installed position in the groove of the figured profile of the vertical post at the desired height, which ensures the stability and reliability of the stilts. In the process of moving the user on stilts, as well as adjusting the height, the lower support element, hinged to the vertical stand, also provides stability, due to the presence of toe and heel parts and an elastic element in the design, which together provide a change in the angle of the vertical stand, thereby most imitating human walking.

[023] It should be noted that the utility model also provides additional advantages in terms of the convenience of adjusting the height of the movable element and the platform for the foot and the simplicity of the design.

[024] Brief Description of the Drawings

[025] The utility model is illustrated by the figures, where:

[026] in FIG. 1 shows a side view of the stilts from the outside;

[027] in FIG. 2 shows the movable element of the stilts in a collapsible form;

[028] in FIG. 3 shows a part of the curly profile of a vertical post according to a particular case of the implementation of the utility model according to claim 2 of the formula;

[029] in FIG. 4 shows a top view of the intermediate position of the latch (point A);

[030] in FIG. 5 shows a top view of the free position of the latch (point B);

[031] in FIG. 6 shows a top view of the position of the latch in the groove of the figured profile (point B);

[032] in FIG. 7 shows a general view of the stilts from above.

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

1 - vertical stand,

2 - curly profile,

3 - step,

4 - groove,

5 - movable element,

6 - latch,

7 - platform for the foot,

8 - lower leg fixation element, 9 - lower support element,

10 - curly cutout of the latch (6),

11. - fuse,

12 - toe part of the lower support element (9),

13 - heel part of the lower support element (9),

14 - elastic element of the lower support element (9),

15 - transverse groove of the movable element (5),

16 - holes for clamping straps,

17 - fasteners,

18 - through hole of the movable element (5).

[034] Implementation of the utility model

[035] The claimed stilt includes a vertical post (1), a movable element (5), a platform (7) for the foot, and a lower support element (9). The vertical post (1) in the upper part, preferably on the outer side surface, has a figured profile (2), one side of which (for example, the back side) has repeating curvilinear bends, turning into steps (3), which in turn turn into grooves (4), and the other (for example, the front side), mainly a repeating wave-like shape, ensuring the installation of the latch (6) in the grooves (4) when adjusting the height of the movable element (5).

[036] The movable element (5) is preferably box-shaped, forming a through hole (18) for sliding along the upright (1). In the upper part of the movable element (5), preferably on the outer side of the stilts, a transverse rectangular groove (15) is made, in which the latch (6) is placed. Also, on the movable element (5) there is a fuse (11), which ensures blocking of the latch (6). The upright (1) and, accordingly, the movable element (5) have a predominantly rectangular cross section. The latch (6) can be in the form of an I-beam, on the inside (with respect to the movable element) of which a figured cutout (10) is made, reciprocal to the grooves (4) of the figured profile (2) of the vertical post (1). When moving the movable element (5) along the curly profile (2) of the vertical post (1), the latch (6) changes its horizontal position and lies on the step (3), after which it is pushed by the user's hand into the groove (4). The fuse (11) is pivotally attached to the movable element (5) with the possibility of rotation around the hinge axis and has a protrusion that matches in shape with the free space between the latch (6) located in the groove (4) of the figured profile (2) and the movable element ( 5) in order to block the movement of the latch (6).

[037] A leg platform (7) is attached to the movable element. The stilt also contains upper and lower leg attachment means. The upper leg attachment means are located in the upper part of the movable element (5) and include a tibia fixation element (8), preferably in the form of a brace, and a tibia clamping strap (not shown) with adjustable straps. The lower leg attachment means include at least one clamping strap (not shown) with adjustable foot straps located on the leg platform (7). To install the upper and lower leg fastening means in the form of clamping straps, special holes (16) are made on the platform (7) for the leg and the movable element (5), through which the said fastening means pass.

[038] The lower support element (9) includes the toe (12) and heel (13) parts and is hingedly connected to the vertical post (1) in the heel (13) part using fasteners (17) through the elastic element (9). The elastic element (9) can be attached on one side perpendicular to the upright (1), as shown in FIG. 1, or can be located between the lower part of the upright (1) and the toe (12) part of the lower support element (9) and attached on both sides with fasteners (17). The elastic element (9) is made mainly in the form of a spring. Other versions of the elastic element (9) are also possible, for example, in the form of an elastic insert. The vertical post (1) at rest forms a right angle of 90° with the lower support element (9), which, when moving on the stilts, as a result of compression of the elastic element (9), changes its value to a smaller side. On the toe and heel parts (12, 13) of the lower support element (9), a sole made of a material that creates friction, for example, rubber or polymer, can be installed for better adhesion to the floor surface.

[039] The vertical post (1) with a shaped profile (2), the movable element (5), the platform (7) for the foot, the lower support element (9) can be made of aluminum alloy, plastic or other rigid, but relatively light materials known to those skilled in the art that are strong enough to support the user's weight and other loads (such as drywall or plywood) placed on the stilts during use.

[040] The stilt of the present utility model is described for one leg of a user. In the practical application of the device, the user uses a pair of stilts, one of which is adapted for installation on the right leg, and the other is designed for installation on the left leg, while the stilts are identical in design and correspond to the present utility model.

[041] The device operates as follows.

[042] Before using the stilts, the user attaches a pair of stilts according to the present utility model to the right and left legs. To do this, the user first puts one foot on the platform (7) for the leg that is in the lowest position, that is, in the lower part of the vertical rack (1) above the lower support element (9), installs the shin in the shin fixation element (8), after which it fixes the foot and lower leg with the help of clamping straps, which are threaded into the corresponding holes (16) on the platform (7) for the leg and the movable element (5). Next, the user transfers his weight to the leg to which the stilt is attached and attaches the second stil to the other leg in a similar manner.

[043] In order to rise to a higher level, the user manually pushes the latch (6) back until it stops, transfers his weight to one leg, and lifts the other leg up. As a result of this action, the movable element (5) with the platform (7) installed on it for the foot moves up the vertical post (1), while the latch (6), having passed the levels corresponding to points B and A in Fig. 3, and, having reached the step (3) of the curly profile (2), when moving the user's foot down, lie down on it with one edge, holding the user in this position (point B in Fig. 3). After that, the user performs similar actions with another stilts and then alternately until he reaches the desired height above the floor surface. After that, the user pushes the latch (6) forward with his hands until it stops so that the latch enters the groove (4) of the figured profile (2) and lowers the safety lock (11), blocking the latch (6) from unintentional movement due to the fact that the protruding side part of the latch will rest against the fuse (see Fig. 6).

[044] In order to go down to a lower level, the user unlocks the latch (6) by lifting the fuse (11) up. Next, the user pushes the latch (6) back until it stops, after which the movable element (5) with the platform (6) for the user's foot goes down to the nearest step (3), lingering on it. After that, the user performs similar actions with the other stilts and then alternately until he descends to the desired height above the floor surface.

[045] Thus, the utility model has improved performance characteristics in the form of increased stability of the stilts when adjusting the height of the foot platform above the floor surface during the use of the stilts due to the presence of a stand with a figured profile, a latch, a fuse, leg attachment means and a lower support element, containing the heel and toe parts and made with the possibility of changing the angle of inclination of the vertical stand of the stilts, implemented by means of a hinged connection through an elastic element.

Claims (16)

1. Stilt adjustable in height, containing a vertical post (1) having a figured profile (2), on one side of which steps (3) are formed, turning into grooves (4), a movable element (5) placed on a vertical post (1) with the ability to move along the curly profile (2) and equipped with a latch (6) configured to be placed in the grooves (4) of the curly profile (2) of the vertical post (1), platform (7) for the leg, fixed on the movable element (5), upper and lower leg attachment means, and lower support element (9) connected to a vertical post (1), characterized in that the movable element (5) is additionally equipped with a fuse (11) configured to lock the latch (6) in the groove (4) of the shaped profile (2) of the vertical post (1), and the lower support element (9) includes the toe (12) and heel (13) parts and is connected to the vertical post (1) pivotally through the elastic element (14). 2. Height-adjustable stilts according to claim 1, characterized in that the latch (6) of the movable element (5) has a figured cutout (10) that matches the grooves (4) of the figured profile (2) of the vertical post (1), and the shaped profile (2) of the vertical post (1), on the other hand, has a wavy shape, which ensures the installation of the latch (6) in the grooves (4) when the latch (6) moves down relative to the vertical post (1). 3. Stilt, adjustable in height, according to claim 1, characterized in that the movable element (5) is box-shaped, and the latch (6) is placed in the transverse groove (15) of the movable element (5). 4. Stilt, adjustable in height, according to claim 1, characterized in that the upright (1) has a rectangular cross section. 5. Stilt, adjustable in height, according to claim 1, characterized in that the upper leg fastening means are made in the form of an element (8) for fixing the lower leg and at least one clamping strap for the lower leg, and the lower fastening means are made in the form of at least one clamping foot strap. 6. Stilt, adjustable in height, according to claim 5, characterized in that the element (8) fixing the lower leg is made in the form of a bracket. 7. Stilt, adjustable in height, according to claim 1, characterized in that the elastic element (14) is located perpendicular to the vertical post (1) or between the lower part of the vertical post (1) and the toe (12) part of the lower support element (9 ). 8. Stilt, adjustable in height, according to claim 7, characterized in that the elastic element (14) is made in the form of a spring. 9. Height-adjustable stilts according to claim 1, characterized in that the lower support element (9) includes a sole made of a material that creates friction.

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