Patent ID: 7866193

Claim:
An anti-theft—quick lock—device for bicycle parts, wheels and/or seat rod, the wheels being blocked on the front fork or on the rear seat stay by a fast locking system of a lever attached to an eccentric and at least one rod having a threaded end receiving a bearing washer and a nut, said eccentric bearing against and linked in rotation to said bearing washer and to said threaded rod extending through the hub of the bicycle wheel comprising: a guiding channel configured to accommodate at least one ball, said guiding channel defining a blind channel in the lever at an obtuse angle with respect to to a longitudinal axis of said lever, said axis defining a bore opening at a first end in said guiding channel and at a second end directed towards an axis of rotation of said lever, having a shoulder forming a widened recess, a reversible means for blocking the eccentric with respect to its pivot of the axis of rotation, said reversible blocking means comprising a mobile enlarged head disposed in the widened recess and a rod guided within the guiding channel and abutting the ball, a spring placed between the enlarged head and the shoulder of the bore maintaining said reversible blocking means on the pivot of the axis of rotation, wherein—when the bicycle is in a horizontal position in which the bicycle is on its wheels and the eccentric is blocked, the device is in a clamped position in which the reversible blocking means is blocked and in which the head prohibits the eccentric from rotating about the pivot, and wherein when the bicycle is in a substantially vertical position, the lever displaces said reversible blocking means and, under the effect of gravity, said ball separates from the bore and the first end of said rod in the guiding channel releases the eccentric.