Patent ID: 7641576

Claim:
A reversible locking device ( 1 ) for a tensioner ( 100 ) including a tensioner body, a shoe ( 5 ), and a tensioner piston ( 6 ), the reversible locking device comprising: a locking device body ( 3 ) having a shaped slot ( 2 ), wherein the locking device body ( 3 ) is integral with the tensioner ( 100 ) and protrudes with respect to the tensioner body; a perforated protrusion ( 4 ) defining a hole, formed integrally with the shoe ( 5 ) carried by the tensioner piston ( 6 ) and protruding with respect to the shoe ( 5 ) such that the hole of the perforated protrusion is aligned with the shaped slot ( 2 ) of the locking device body; and a rod ( 7 ) having a first part ( 8 ) with a shape complementary to that of the shaped slot ( 2 ) and a second part ( 9 ) with a first end coupled with the perforated protrusion ( 4 ); wherein the locking device is reversibly lockable; and wherein the locking device is retained on the tensioner when the tensioner is locked by the locking device and when the locking device is disabled, wherein the rod extends through the shaped slot of the locking device body and through the hole of the perforated protrusion when the tensioner is locked by the locking device and when the locking device is disabled.