SU1705175A1 - Vehicle - Google Patents

Abstract

This invention relates to vehicles and can be used in medical technology. The aim of the invention is to expand the operational properties of vehicles by moving up stairs. The vehicle includes a frame 1, wheels 2, a walking propeller in the form of skis associated with a force transmission mechanism including balancers located on the sides of the vehicle. with oa / yum rotatably with respect to the rozm 1. At one end of each of the balances, a wheel axis is fixed, rigidly connected with an asterisk 10, and at the other end is an asterisk kinematically associated with an asterisk rigidly fixed at the end of the crank, freely mounted in the front part of the frame 1 at the same time, a pair of movable skis are hinged on the crank. 2 Il.

Description

The invention relates to vehicles and can be used in medical technology to navigate stairs.

The aim of the invention is to expand the operational properties of movement along stairs.

Figure 1 presents the proposed vehicle, side view; figure 2 - section aa in figure 1.

The vehicle contains a frame 1. wheels 2. two axle-guided wheels 3. mounted on a rotary seat-. not L, having the ability to rotate up and down on the hinges 5 relative to the frame 1 by means of handles 6, links 7, interconnected by a frame and a bracket 4, in a row.

In the upper and lower positions, the bracket 4 is fixed, the latches in the drawings are shown.

The wheels 2 are mounted on the balancers 8 of the shaft 9. At one end of the balancer 8, there are installed sprockets 10 rigidly connected to the wheels 2 (with their central bushings) and auxiliary sprocket 11. Fixed skis 12 are rigidly mounted on the frame. Movable skis 14 are mounted on the cranks 13 each movable ski is mounted on doh cranks. Movable 14 and fixed 12 skis are parallel. The cranks 13 are rigidly mounted with sprockets 15 and 16. The sprockets 15 are located in the same planes with the sprockets TO. And 11 and are connected by stub-roller chains 17. The chains 17 are tensioned by national devices 18. The sprockets 16 are connected by stubs roller chains 19. The bracket 4 and the balancers 8 in the upper and lower positions of the wheels 2 are fixed relative to the frame 1. And the wheels 2 are fixed and relative to the balancers 8. of the shaft 9.

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Skis 12 and 14 relative to frame 1 are set with a slope. that their rear part is high.

The vehicle operates as follows.

Before descending the stairs, approach the stairs in front, lift the wheels 2. fix them on the top position. When the wheels are raised, the shaft 9 turns 180 °. running of sprockets 10 and 11 along the internal contours of chains 17, at the same time the stars It) and 11 change places and the connectors 10 interlock with chains 17. the shaft 9 is connected to the skiing skids 14. Rotate the wheel 2 towards the stairs . The front part of the vehicle rests on the front ends of the skis 12. and the rear end - on the rear wheels 3. After several steps, the vehicle completely stays with the skis 12 from the edge of the steps, while the rear wheels 3 are raised above the surface of the ground, after which they are lifted and fixed in the upper position. Further, continuing to rotate the wheels 2, continue to move up the stairs. At the end of the ladder and after the rear ends of the 12 skis are above the first lower step, the wheels 3 are lowered. They are fixed in the lower position and then move on the wheels 3.2.

Before lifting, they drive up with their backs to the stairs so that the rear ends of the skis 12 are above the first step, they lift and fix the wheels 3. 2. By turning the wheels 2 they go up the stairs. At the entrance to the upper platform, when the rear of the skis 12 is above the upper platform,

lower the wheels 3 and fix them, continuing to move until the vehicle is completely out on the platform. Then lower the wheels 2, fix and, rotating the wheels 2. continue to move on the wheels 3, 2.

Claims (1)

Invention Formula . Vehicle containing a frame, a drive shaft with wheels, kinematically coupled to a force transmission mechanism with a walking propulsor in the form of two pairs of skis, characterized in that. that in order to expand operational properties by moving along stairs, one pair of skis is rigidly connected to the frame, and the force transfer mechanism includes balancers arranged in vehicle sorts, rigidly connected in the center of the drive shaft rotatably with respect to the frame; at one end of each balance bar an axle wheel is loosely fixed with an asterisk, and on the other is an asterisk kinematically linked with an asterisk rigidly fixed at the end of the crank which is freely mounted in front of the frame, with the other pair of skis hinged in its central part. BUT / 2 J-I /// W 16 t 1 FIG. 2