초록

A claw hitch for a lower link of a three point tractor linkage comprising a self-locking mechanism with over-center spring biased lever lockingly engageable with a ball of an implement coupling rod.

대표청구항 ▼

A claw hitch for a three point linkage on a tractor and comprising: a coupling hook having a jaw adapted to receive an associated ball being unitary with an implement coupling rod; a lock mechanism for self-locking of the ball in said jaw; said hook comprising a lock mechanism housing; said lock mec

A claw hitch for a three point linkage on a tractor and comprising: a coupling hook having a jaw adapted to receive an associated ball being unitary with an implement coupling rod; a lock mechanism for self-locking of the ball in said jaw; said hook comprising a lock mechanism housing; said lock mechanism comprising a one-piece lever pivotally connected with said housing; said lever having a handle end protruding through and outwardly of said housing and the latch end movable within and outwardly away from said housing; said latch end comprising a convex camber portion with a groove lockingly engageable with the ball in a locked position and permitting said ball to limitedly rotate in any direction; spring means connected with said housing and said lever for over center spring biasing of and forcing said lever to remain in both locked and unlocked positions by being placed in such a way so as to apply its force to opposite sides of said lever pivot axis; and said housing including a stop bridge abutting said lever in the locked position and a bridge wall corner block abutting said lever in the unlocked position.