SU1546532A1 - Self-propelled road-roller with manual control - Google Patents

Abstract

The invention relates to hand-operated self-propelled ice rinks and improves safety when operating in cramped conditions. The roller contains roller roller 1, drawbar 4, control system 2 stroke and device 3 automatically disable stroke when it collides with an obstacle. The device 3 is made in the form of a telescopic drawbar 4. The dyshlo 4 consists of moving and fixed parts. The fixed part of the drawbar 4 is equipped with a latch and a pusher with a hook. The control system 2 is provided with a handle 7 made with a stop. 8 il.

Description

The invention relates to the construction, in particular to devices for compacting road foundations and coatings, in particular, to machines with manual control.

The purpose of the invention is to increase safety when working in cramped conditions.

On figy1 shows a self-propelled roller with manual control, a general view; Fig. 2 shows a position allowing for the forward and reverse engagement of the roller; on fig.Z - view A - on figure 2 (the handle is pressed to the bracket); figure 4 - the neutral position of the rink; FIG. 5 is a view B in FIG. 4 (the handle is released); Figure 6 shows the control system of the rink, the handle is pressed, the forward gear is engaged; 7 - the same, the handle is pressed, reverse is on; on figd8 - the same, the handle is pressed, neutral position, the roller automatically stops.

The hand-operated self-propelled roller contains a roller trolley 1, a roller control system 2 and an automatic roller shut-off device 3 in a collision with an obstacle.

The device 3 automatic shutdown of the roller is made in the form of a telescopic drawbar 4.

Dishl 4 contains a fixed 5 and a movable 6 partly. On the movable 6 part of the drawbar 4, the system 2 controls the roller travel.

The control system 2 comprises a roller control knob 7, a stopper 8, a knob 9 with a spring 10 and a roller 11 in contact with the stopper 8, a bracket 12.

The limiter 8 is installed on the same axis as the handle 7, but is shifted to the lower part to fix its neutral position.

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The handle 7 is connected via a cable 13 to a remote control unit of a roller (not shown),

In the movable part 6 of the drawbar 4 with the possibility of axial movement in the guide 14 is installed a pusher

15o Pusher 15 is equipped with a spring

16 and at its opposite end is made with a hook 17. In the working position, the hook 17 contacts with a finger 18 mounted on the fixed part 5 and passing through the longitudinal groove 19 of the movable part 6 of the drawbar 4.

The movable part 6 of the drawbar 4 is held in the fixed part 5 by means of a ball retainer 20 installed in the aperture 21 of the fixed part 5 and spring-loaded 22 mounted in the recess 23 of the movable part 6.

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In the off position, the handle 9 is not pressed to the bracket 12. In this case, the roller 25 11 holds the handle 7 through the limiter 8 in the neutral position, and the movable part 6 of the drawbar 4 is fixed in the fixed part 5 by the retainer 20, the hook 17 contacts 0 with the finger 18, and the pusher 15 does not touch the limiter 8.

The rink works as follows.

The operator presses the handle 9 to the bracket 12, while the roller 11 releases, with the limiter 8 and the roller control handle 7. To move the roller forward or backward, the handle 7 must be moved forward or backward respectively (as shown in Figs 6 and 7).

The command from the handle 7 is transmitted through the cable 13 to a roller control unit (not shown).

If the operator releases the knob 9, d5, then it is rotated around the axis under the action of the spring 10 and acts with the roller AND on the stopper 8, which returns the knob 7 to

15465324

neutral position. The roller stops.

If the operator, while the roller is moving backwards, is clamped between the obstacle and the drawbar 4, then oHOf encounters an obstacle and begins to telescopically fold, compressing the spring 22. The latch 20 will enter the recess 23 of the movable 6 part of the drawbar 4, ensuring its free movement. With the start of movement of the movable part 6, the hook 17 is released from being held by the finger 18, under the action of the spring 16 moves together with the pusher 15, acts on the stopper 8 and sets the handle 7 to the neutral position.

The roller stops regardless of whether the handle 9 is released or pressed,

To install the drawbar 4 to its original position, it is necessary to move the movable part 6 so that the retainer 20 enters the hole 21.

Claims (1)

Invention Formula Manually operated self-propelled roller containing a roller trolley, a drawbar rigidly connected to the base, a roller control system with an axle mounted on the axle and an automatic shut-off device of the roller in case of a collision with a bar with an obstacle, characterized in work in cramped conditions, the device for automatically shutting off the roller is made in the form of a telescopic drawbar with a lock and with a finger in a fixed part and a spring-loaded pusher with a hook, anovlennogo in the movable portion of the drawbar to be axially movable, and controlling the progress of the handle of the roller is formed with a stopper in the bottom part for fixing its neutral position in cooperation with the pusher. FIG. one 2t 20 23 22 23 77 Fiel TUB 10 3 12 / L-qi 16 15V 5 6 fzg 7 AT 9 12 I I fie.8