Bicycle lock

Claim 1

A STEERING LOCK MECHANISM FOR A TUBULAR FRAME VEHICLE HAVING A SUBSTANTIALLY UPRIGHT TUBULAR HEAD PORTION, COMPRISING A SUBSTANTIALLY VERTICAL FORK AND TUBULAR FORK STEM, MEANS ROTATABLY MOUNTING SAID TUBULAR FORK STEM IN SAID TUBULAR HEAD PORTION, SAID TUBULAR FORK STEM COMPRISING A TUBULAR MEMBER HAVING A PORTION OF PREDETERMINED LARGER DIAMETER WITHIN SAID TUBULAR HEAD PORTION AND HAVING AN INTEGRAL PORTION UPWARDS THEREOF OF DECREASED INTERNAL DIAMETER PERMANENTLY FIXED TO SAID PORTION OF LARGE DIAMETER, SAID TUBULAR FORK STEM HAVING AN UNDERLYING ENLARGEMENT INCLUDING SAID FORK PREVENTING UPWARD WITHDRAWAL OF SAID TUBULAR FORK STEM THROUGH SAID TUBULAR HEAD PORTION, LATCH MEANS SNUGLY FITTING WITHIN THE LARGER DIAMETER PORTION OF SAID TUBULAR FORK STEM AND TOO LARGE TO BE WITHDRAWN THROUGH SAID PORTION OF DECREASED INTERNAL DIAMETER, SAID LATCH MEANS HAVING A LATCH MEMBER RECIPROCABLE RADIALLY OF SAID TUBULAR FORK STEM, SAID TUBULAR FORK STEM HAVING AN APERTURE THEREIN THROUGH WHICH SAID LATCH MEMBER IS MOVABLE, MEANS PROVIDING A STRIKE IN SAID TUBULAR HEAD PORTION WITH WHICH SAID LATCH MEMBER IS ENGAGEABLE FOR RELEASABLY LOCKING SAID LATCH MEMBER TO SAID TUBULAR HEAD PORTION, SAID LATCH MEMBER LOCKING TO SAID TUBULAR FORK STEM BY EXTENDING THROUGH THE APERTURE THEREIN WHEREBY SAID TUBULAR FORK STEM IS RELEASABLY LATCHED TO SAID TUBULAR HEAD PORTION AGAINST ROTATION THEREOF, LOCK MEANS RECEIVED IN THE DECREASED DIAMETER PORTION OF SAID TUBULAR FORK STEM, ADJACENT THE UPPER END THEREOF, AND MEANS EXTENDING THROUGH SAID TUBULAR FORK STEM AND OPERATIVELY INTERCONNECTING SAID LOCK MEANS AND SAID LATCH MEANS FOR EFFECTING RECIPROCATION OF SAID LATCH MEMBER BETWEEN LOCKING AND UNLOCKING POSITION UPON MANIPULATION OF SAID LOCK MEANS.