TRAILER DRAW-AND-COUPLER GEAR Russian patent published in 2007 - IPC B60D1/01 B60D1/14 B60D1/32 

FIELD: transport engineering; trailing vehicles.

SUBSTANCE: invention relates to trailing vehicles and it can be used to improve draw and coupled properties of vehicle and to reduce dynamic loads on its running gear and transmission at unsteady running by killing longitudinal resonance oscillations of trailer. Proposed trailer draw-and-coupler gear has draw link with rod passed through hole made in front part of pole. Cross-member is installed on pole, being furnished with lock member in places of connection with pole, and provided with central longitudinal hole. Cross-member is adjustable in length of rod in brackets secured on pole. Device is furnished additionally with spring with outer diameter of coiling changeable in length. Spring is coupled by one end through support plates with front part of pole, and by other end, with cross-member through rubber buffer installed on rod and pressed by two cups, body of one cup being nested in body of other cup. Support plates are made for shifting tight to cups and acting onto rubber buffer through cups to dissipate absorbed energy. Rod consists of two parts, one of which is fitted into the other, being fixed through plate by nut and safety pin with cotter pin.

EFFECT: provision of easy taking off from halt, simplified design of device, increased service life and improved draw-and-coupling characteristics of vehicle, reduced dynamic loads on running gear and transmission at unsteady running by killing longitudinal resonance oscillations of trailer.

1 dwg