Trailer hitch trailer

 

(57) Abstract:

Usage: relates to the field of transport, namely, to towing devices of the trailer. The inventive trailer coupling device latch represents the axis of the control lever, which made the slot for I / o hitch ball from the socket body when the rotation lever which is spring-loaded to the chassis. In the middle part of the retainer is made annular groove with a radius equal to the radius of the hitch ball. 1 C.p. f-crystals, 3 ill.

The invention relates to the field of transport, namely to towing devices of trailers.

You know trailer hitch trailer containing mounted on a vehicle hitch ball mounted on the other vehicle and socket hitch ball case where the axis is placed a spring-loaded lever, is made to rotate in a vertical plane, and the latch.

The presence in this structure of the clamp spring to the lever, locking button makes the construction complicated, mnogodetnoi, reduces the reliability of the device.

The purpose of the invention is to enhance reliability and simplify the vehicle hitch ball, mounted on the other vehicle and socket hitch ball case where the axis is placed a spring-loaded lever, is made to rotate in a vertical plane, and the latch, the latter represents the axis of the control lever, which made the slot for I / o hitch ball from the socket housing, and the lever is spring-loaded to the chassis. To improve durability by reducing contact stress in the zone of engagement of the latch with the hitch ball on the retainer is made annular groove with a radius equal to the radius of the hitch ball.

In Fig. 1 shows a trailer hitch in the closed position, a longitudinal section; Fig. 2 - the same, in the open position; Fig.3 - section a-a in Fig.1.

The device comprises a hitch ball 1 mounted on a vehicle included in the slot 2 of the housing 3 mounted on another vehicle, on which is mounted a control lever 4 mounted on the axis 5, which is also a tab that locks the coupling ball 1 in the working position under the action of the spring 6 is mounted between the lever 4 and the housing 3. Hitch ball 1 and slot 2 of the chassis 3 IMEs. Onto the clip in the middle part is made annular groove, the radius of which corresponds to the radius of the hitch ball.

The device operates as follows.

The lever 4 is lowered against the force of spring 6, before the formation of free passage for coupling ball 1, which is injected into the slot 2 of the chassis 3. After that, the lever 4 returns to its original position, in which it is retained by the spring 6. While the axis 5 of the lever is rotated, locking hitch ball 1 in slot 2, but not interfering with its free rotation around the center of the sphere.

In order to uncouple the vehicle must again move the lever down, freeing the passage for coupling a ball, take it out of the socket body and to return the lever to its original position.

1. Trailer HITCH TRAILER containing mounted on one link of the hitch ball and mounted on another link and socket hitch ball building, which is located in the transverse direction of the axle, one end of which is fixed is made to rotate in a vertical longitudinal plane of the lever, and a locking mechanism, wherein the locking mechanism is made in the form specified axis with linen through the groove for the passage of the hitch ball, as the control lever is spring-loaded relative to the body.

2. The device trains under item 1, characterized in that the middle part of the axis along with the groove is made annular groove with a radius equal to the radius of the hitch ball.

 

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