Patent ID: 6224113
Filing Date: 2001-05-01
Classification: F16L

Abstract:
A locking device for a quick release coupling extendable between a locked position and an unlocked position, said locking device comprising:a coupling including at least two pairs of supports each pair containing a groove therein and a locking pin mounted therein;a sleeve attached to said coupling and having an arcuate groove defined therein;a lever pivotally mounted on each of said pairs of supports and including a cam formed to abut said arcuate groove of said sleeve, a recess with an opening defined in a bottom defining said recess, a pin, a rod having a first end and a second end attached to a ring, and an indentation defined to receive said locking pin when the lever is pulled to abut a periphery of said coupling;a linkage received in said recess and pivotally mounted on said lever and penetrated by said pin, and having a first end abutting said locking pin when said locking device is in said locked position and passing over said locking pin when said locking device is in said unlocked position, and a second end extending through said opening of said recess, and being attached to said first end of said rod; anda torsion spring pivotally mounted on said lever having a first end abutting said first end of said linkage and a second end abutting said lever and being penetrated by said pin.