Motorcycle chain lock

Abstract

A lock adapted to engage links of a chain of a motorcycle or the like to prevent theft. A main body has at one end a plate detachably secured thereto, said plate having an open position at which it is detached from said body and having a closed position at which it is secured to said one end of said body. The body and the plate, when the plate is in closed position, cooperate to define the boundary surfaces of a chain receiving channel open at both ends which extends along said one end of the body and said plate. Each of first and second spaced apart parallel prongs is secured at one end to the plate and extends at right angles thereto, the opposite ends of said prongs being enlarged and constituting prong heads. The prongs pass transversely through spaces in said chain when said chain is in the channel with the heads disposed between the chain and said one end of the body. A manually operable lock mechanism is disposed in the body, said mechanism including a rotatable cylinder with an offset locking arm. The cylinder, when the mechanism is locked and the plate is in closed position, assumes a first position of rotation at which said arm engages said heads to lock the chain in place. The cylinder, when the mechanism is unlocked, assumes a second position of rotation at which said arm is spaced from the heads whereby the plate can be placed in open position and said chain removed.

Dependencies are inferred from the claim text.