SU23453A1 - Brake rail shoe - Google Patents

Description

The invention relates to brake shoes provided for gripping the head of a relaxer with claw-shaped turning legs held in the working position by an expansion spring plate. In the proposed brake shoe in order to automatically grip the rail head with swivel legs, the spring plate is equipped with a toothed rack and a T-shaped hole, through the narrow part of which passes the lower narrow end of the movable spring pin, and through the wider part - correspondingly wider middle part of the same pin , what is the rake of the plate coupled with the gear - key.

In FIG. 1 and 2 depicts a side view of a shoe with a partial section and a cross-section of the same shoe; FIG. 3 shows a plate supporting the rotary legs, and FIG. 4 - spring plate.

In the broadened part 5 (Fig. 1 and 2) of the shoe A, a plate is attached to the latter (Fig. 3), provided with an opening L and carrying two rollers G on which the legs B. are freely suspended. Between the body of the shoe and the upper ends of the legs are placed movable plate W, (fig. 4), equipped with a toothed rack M, T-shaped hole H and two shoots / 7 with springs covering them K. In the body of the shoe key 3 is pivotally fixed, equipped with gear wheel P coupled to the rack M of plate W . Through the narrow part of the hole // plate F and through

the hole L of the plate passes through a narrow part of the pin loaded with a spring; 1, with one end resting on the body of the shoe, and the other on the shoulders of the pin. The middle part of the pin is located above the plate W, the width of the correspondingly broadened part of the hole H in the plate J.

In the drawing (Fig. 2) the shoe is depicted in the working position. In order to remove the shoe from the rail, turning the key 3 moves the plate F into a hundred spring / C springs. As it moves, plate G comes off the upper ends of legs C, which then turn on rollers D and release the shoe from fastening to the rail head. When, with further movement of plate Zh, the broadened part of its opening H fits under the adjacent broadened part of pin E, all the time supported by its lower end on the rail head, the shoe together with plate W is lifted somewhat by the action of spring I, and the pin enters its wider part into hole N and secures the plate in the idle position with the springs / L compressed. After that, the key 3 can be released, and the boot removed from the rail.

When the shoe was installed, the location of the parts, which was attached to them when removing the shoe, was retained, and this shoe, supporting it by the handle, was placed on the rail head, with free-swinging legs, bypassing the rail head, and the shoe itself is located on the rail. resist smiling

 one of the transverse edges of its base and pin E. Pressing the shoe from above onto the shoe squeezes the spring // and shifting plate Ж down under the broadened part of pin E. After which the shoe fits tightly its base to the rail, and plate Zh, moving horizontally under the action of springs K It fits the narrow part of its hole H under the broadened part t of the pin E and, advancing towards the upper ends of the legs B, causes the latter to cover the rail head with their lower ends and fix the shoe on the rail.

So that the closure of the shoe on the rail takes place automatically, without pressing on the shoe from above, it is not placed on the rail, but dropped. The force of striking the head of the rail of the pin E causes a compression of the spring And, like the pressure on the shoe placed on the rail.

The subject matter of the invention.

A brake rail shoe with swivel locks for gripping the track rail head held in working position by a spring plate, characterized in that the spring plate W is provided with a T-shaped hole for passing the vertical spring pin E, having, correspondingly to the said hole, the lower end of a smaller section than top so as to

I, when setting the shoe on the rail and pressing the latter, the recessed pin introduced the possibility of a plate under

I spring action moves for

i hold the legs, which serve to grip the rail, and when the plate is moved away with the key, the pin, resting on the rail, could lift the shoe.