SU1541099A1 - Vehicle for moving loads over staircases and landings - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to vehicles, in particular, to means of moving loads on stairs and platforms. The purpose of the invention is to increase the smoothness when moving up the stairs. A vehicle for moving goods along stairs and platforms comprises a frame with a cargo platform, travel wheels with retractable rods, electric motors with gearboxes and gears. The device is equipped with support-levers with rollers and dampers. The rods at the ends contain rollers adapted to interact with guides mounted on the frame. The tiller arms are hinged at one end to the semi-axis x, while others are hingedly connected to the rollers and dampers. Each guide contains concentric and eccentric contours, in the places of the conjugation of which there are installed reflectors of the rollers. The damper is made in the form of a V-belt transmission, in which one of the pulleys is mounted eccentrically on the frame, and the other is mounted on a single axis with the roller of the tiller arm. 1 hp f-ly, 5 ill.

Description

FIELD OF THE INVENTION The invention relates to vehicles, in particular, to means of moving loads on stairs and platforms.

The purpose of the invention is to increase the smoothness when moving up the stairs.

FIG. 1 shows a vehicle without a loading platform, a plan; in fig. 2 shows section A-A in FIG. one; in fig. 3 a section B-5 in FIG. one; in fig. 4 - vehicle when moving up the stairs; Figure 5 is the same when moving down the stairs.

The vehicle contains a running wheel 1, on which the frame 2 is supported with the help of axles 3.

Wheels 1 contain extendable rods 4 with rollers 5

The frame 2 is equipped with a cargo platform 6 with a compartment for the battery 7, control units 8, electric motors 9, worm gearboxes 10, chain drives 11, treadmills 12, made with the possibility of rollers 5 rolling over them, treadmills 13 s rollers 14 and dampers 15 configured to absorb the impact energy of the wheels 1 on the steps of the stairs.

, Cargo platform 6 is installed on frame 2 by means of axles 16 and mettt

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The anism of its stabilization of the well-known Construction.

Each foot sill 12 contains eccentric 17 and concentric 18 contours, and at the junction points of these contours, reflectors 19 and 20 are installed with the possibility of directing rollers 5 along the corresponding contour depending on the type 1 / part of the path. The reflector 19 is connected to the controls, and the reflector 20 is spring-loaded with the possibility of the free passage of the rollers 5 in one direction only - when moving forward.

Each tiller arm 13 by its console 21 is connected with control bodies 8, and damper 15 is better in the form of a V-belt transmission, in which pulley 22 is mounted on frame 2 eccentrically and fixed from turning by lever 23 connected with control bodies 8, and the pulley is mounted on the same axis with the roller 14 and is connected by a belt 25 with the pulley 22.

The device works as follows.

The electric motors 9 are turned on, the torque is transmitted through the black gearboxes 10 and the chain gears, e chi 11 to the driving wheels 1,

The vehicle travels straight ahead, for example, forward. When the gate to the power circuit of one of the engines includes a rheostat, for example, the right one - the vehicle turns to the right.

To change the turning radius, the resistance value of the rheostat is changed. For a steep turn, one of the engines is turned on for reverse.

Reversing is provided by reversing both engines.

Braking is made by switching on the engines. Emergency braking is performed by reversing the engine. When moving up the stairs, the reflector 19 is in the position shown in FIG. 2, and the manic levers 13 lift up to the stop. In this case, the reflector 19 blocks access to the concentric axis 18 and the rollers 5 move along an eccentric circuit 17, alternately pushing the rods A, with which the wheels 1 rest on the upper step, lifting it (fig.k.

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In order to move on horizontal platforms, the reflector 19 is turned counterclockwise until it stops, pe- j. blocking the access to the eccentric contour 17. At the same time, the rollers 5 roll over the concentric contour 18, keeping the rods k in the initial position without interfering with the movement.

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When moving down the stairs, the supporting arms 13 lower. This reduces the tension on the belt 25, and the rollers AND cat.

When wheel 1 comes off the step (Fig. 5), the lever 13 rotates, increasing the tension of the belt 25. The friction in the damper elements increases, absorbing the impact energy of wheel 1 on the steps of the ladder.

To change the tension of the belt 25, the pulley 22 is rotated in one direction or the other with the help of a lever 23 and a control mechanism 8.

Claims (2)

1. A vehicle for moving loads on stairs and platforms, containing a frame with a loading platform installed on the semi-axles of the traveling wheels, pull-out rods mounted at one end on rails attached to the axles of the driving wheels, mounted on the frame with gear motors and gearboxes mechanisms from engines to wheels, characterized in that, in order to increase the smoothness of the motion when moving on a ladder, the device is equipped with supporting tnik levers that are hinged with one ends Lena on a half x} and the other end pivotally mounted rollers with dampers, each guide adapted to be placed in engagement with inner ends of the sliding rods rollers and comprises concentric and .ekstsentrichesky contours in mating locations are reflectors mounted rollers. 2. Vehicle according to claim 1, characterized in that the damper is made in the form of a V-belt transmission, one of the pulleys of which is mounted on the frame is eccentric, and the switchgear assembly is mounted on an axle common with the roller. 1 nineteen 18 to FM.1 Fig 5