DRAW HOOK FOR LOWER THRUST OF AGRICULTURAL TRACTOR Russian patent published in 2016 - IPC A01B59/43 A01B63/00 B60D1/04 

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machine building, particularly, to devices for connection of agricultural tractor with various agricultural implements. Draw hook forms end part of agricultural tractor lower thrust. Draw hook of hook has body with receiving element for coupling body. In hook body has receiving chamber, in which holder is retained. Holder is made with possibility of shifting between embracing coupling body locked position and retracted into receiving chamber release position. By way of coupling body pressing in receiving element can be adjusted retainer hook body in position of activation, from which it is automatically is transferred into locked position. Holder is in active connection with cam made with possibility of locking lever shifting. Fixator has locking slot to receive cam locking lever in position of fixation and/or release. Locking groove formed for fixation position so that cam by means of shifting in direction to receiving element can leave locking groove.

EFFECT: such design solution prevents inadvertent permutation of retainer, which enables higher operational reliability of draw hook.

11 cl, 8 dwg