Patent ID: 6736371
Filing Date: 2004-05-18
Classification: B60P,B66F

Abstract:
An extendible jack bar for retaining an object in a compartment having at least one wall comprising:a central tube member having a ratchet formed on the outer wall thereof; a first end piece attached to one end of said central tube member; a second tube member, said central tube member being telescopically fitted within said second tube member; a ratchet drive mechanism mounted on an end wall of said second tube member, said ratchet drive mechanism including an operating handle and a ratchet pawl which engages the ratchet formed on the central tube member, said ratchet drive mechanism driving said central tube member out of said second tube member and retaining said central tube member in the position relative to said second tube member to which it is driven; a third tube member, said second tube member being telescopically fitted within said third tube member; a second end piece attached to the end of said third tube member opposite to that through which said second tube member is fitted, one of said end pieces abutting against the compartment wall and the other of said end pieces abutting against said object; and means for selectively setting the distance to which the second tube member extends out of said third tube member to one of several predetermined positions to thereby vary the length of the jack bar.