SU1581312A1 - Invalid wheeled chair - Google Patents

Abstract

The invention relates to vehicles for the self-movement of persons with disabilities. The purpose of the invention is to increase safety when moving along stairs with different steps. The wheelchair wheel consists of a frame 1, on which a seat 2 with a backrest 3, U-shaped supports 4 located on the sides of the frame 1, and wheels 5 having overrunning clutches are hinged with the possibility of fixation. U-shaped supports and the frame are connected with the possibility of longitudinal movement relative to each other. U-shaped supports are provided with runners 9, and the frame is equipped with a runner 13. The runners 9 and 13 have a pile on their bottom surface, which is fixed with the possibility of its inclination. 3 il.

Description

The invention relates to medical technology, in particular to vehicles for the independent movement of persons with disabilities.

The purpose of the invention is to increase safety when moving along stairs with different steps.

Figure 1 shows a general view of a wheelchair; figure 2 - section aa in figure 1; on fig.Z - runner.

The wheelchair wheel consists of a frame 1, on which a seat 2 with a backrest 3, U-shaped supports 4 located on the sides of the frame 1, and wheels 5 having overrunning clutches are hinged with the possibility of fixation. U-shaped supports 4 and frame 1 are connected with the possibility of longitudinal movement relative to each other, for which U-shaped supports 4 have jumpers 6 with guides 7, and on frame 1 are fixed

strips 8 installed in guides 7. U-shaped supports 4 are equipped with runners 9 with brackets 10 movably mounted on their vertical uprights, which ensures vertical movement of the runners 9, which is carried out using handles 11 fixed in the desired position by clamps 12, located on the bridges 6. The frame 1 is provided with a skid 13, which is mounted to the levers 14 with locks 15, ensuring its vertical movement and fixation in the required position. Skids 9 and 13 have a pile 16 on their bottom surface, which is fixed in pivoting elements 17 mounted on a skid x 9 and 13 by means of axes 18. Rotate tilt; ix elements 17 together with pile 1IS gpechpechia rod 19 th 20, while moving

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The elements 17 are connected to the rod 19 by no-axis 21. The wheels 5 are mounted with their vertical axles 22 vertical stands of U-shaped supports 4. Horizontal horizontal U-shaped supports 4 are mounted on their vertical stands with brackets 23 and have the ability to rotate around their kinematically, by means of the .Q bevel gear 24, they are connected to the vertical axes 22 of the wheels 5, which makes it possible to turn the wheels 5. To facilitate the mutual movement of the frame 1 and the U-shaped supports 4 there are levers 25 They are mounted on the frame 1 and can be connected to the guides 7 of the U-shaped supports 4. For the convenience of entering the ladder, the skid 13 is made longer than the lip of the rim 9 and has an end bent in front.

Wheelchair Ska works as follows.

When moving up the stairs, the staircase is pressed with wheels 5 all the way to the first step. The skid 9 is lowered and fixed, while tentatively having inclined the pile 16 on them in the movement of the wheel. Tilt and fix the si-, -. denier 2, after which it is displaced together with frame 1 along guide 7 forward. After unlocking the levers 14, they lower the skid 13, at the same time the front wheels 5 and the front ends of the skids 9 rise. count ski Then, the seat 2 with the frame 1 is moved again relative to the already fixedly mounted po-x 9 U-shaped supports 4. Such alternate displacement of the frame 1 and U-shaped supports 4 moves the column up the stairs. Connect the levers 25 to the rails 7, the indicated alternate displacement occurs when the rocking levers 25.

When moving down the stairs on the skid 13, the inclination of the pile 1P is set against the movement of the koli, and on the runway x 9 - along the movement of the ki. Shift U-shaped supports 4 forward. Change the slope of the pile 16 to 55 runners x 9 and 13 to the opposite

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and move the seat 2 with the frame 1 down. Then the tilt is again changed - the pile 16 is on the skid x 9 and 13 is opposite and now the U-shaped supports 4 are shifted down. Such an alternation while moving ensures the movement of the kolki down the stairs. In this case, the levers 25 may not be used, since the downward movement does not require much effort. Movement on a flat surface is performed by alternately moving the U-shaped orlop 4 and locking them with overrunning clutches with which the wheels 5 are rotated. Rotate the wheel by rotating horizontal horizontal U-shaped supports 4, which rotate the wheels 5. 5 by 180 °. On the landing, the turn of the wheel can also be carried out by varying the inclination of the pile 16 on the runner x 9. Horizontal horizontal U-shaped supports 4 simultaneously serve as armrests against which you can abut, moving the wheel.

Claims (1)

Formula and gain A wheelchair wheel containing a carcass on which a seat with backrest, wheels and an attachment is hinged with the possibility of fixation. for moving along the ladder, made in the form of U-shaped supports, placed on the sides of the frame and connected to the latter with the possibility of longitudinal movement relative to it, which is different in order to increase safety when moving along the stairs with different steps The U-shaped supports and the frame are provided with vertically moving fixed skids, having a pile on the bottom surface fixed with the possibility of their inclination; the wheels are equipped with overrunning clutches and mounted in vertical supports U-shaped supports can be rotated around their longitudinal axes, and horizontal U-shaped supports are rotatably mounted around their longitudinal axis and are kinematically connected to the wheels. CM n oo Nl nineteen  L / L / L 7 J 17 17  L 7 J one/ Fig.Z Y6