SU21217A1 - Safety device for tramcar - Google Patents

Description

Safety devices installed in front of tram cars in the form of retractable grids controlled by piston rods of cylinders driven by compressed air from the existing compressor installation, are widely used at the present time, but are distinguished by the disadvantage that they do not always protect the victim from injury. and mutilation.

The proposed safety device is aimed at eliminating the above mentioned disadvantage with the help of a special device.

In FIG. 1 shows a top view of the safety grid; FIG. 2 is a side view of the same grid in a non-operating position; and FIG. 3 is a side view of the same grid in the working position.

The safety device proposed by the author consists of a movable grid 1 fixed on the frame 4-5 of the telescopic device of a well-known construction, with softening, when the grid is thrown out, the impact of the spring 7 (Fig. 1.) and moved apart by compressed air using a pull (Fig. T) connected to the piston rod of the cylinder of the compressor unit; "And the front

The end of the frame is equipped with idler rollers 10 (figs. 2 and 3) and buffer devices 8 and 9 (figs. 2 and 3) of a well-known construction for softening the impact. The safety net rests on springs 2 and 3 (Figs. 2 and 3). The grid, located under the car in the position indicated in FIG. 2, after leaving the car frame, it takes an inclined working position (Fig. 3) under the action of spacer springs 2 and 3 arranged for this purpose and in this position takes on the victim, and this achieves the fulfillment of the idea laid by the author .

The subject matter of the invention.

A safety device for a tram car, consisting of a movable net, a reinforced frame of a telescopic device, which is moved apart by compressed air from a compressor unit, characterized in that the safety net rests on distance springs 2, 3, which give the net a working inclined position while pushing it forward of the car.