Arctic tent pole
AssigneeHer Majesty the Queen in right of Canada, as represented by the Minister of National Defence
InventorWilliam E. Victor
Life of this patent
Estimating the term…
Abstract
A support which includes two or more pole sections hingedly interconnected by a hinge permitting the support to be folded for storage purposes. At least one of the pole sections has a pair of portions disposed in telescopic relation for sliding movement providing a fast coarse adjustment to the length of the support. The sliding movement is lockable at various relative positions by a quick release coupling which, upon locking the sliding telescopic movement, converts to a screw thread fine adjustment for changing the length of the support. A releasable lock mechanism is also provided for locking the pole sections when they are in line in an end-to-end position.
Claims5
A collapsible, adjustable variable length support comprising:
- (a) a pair of pole sections, one of said pole sections comprising an externally threaded, elongate member telescopically projecting into a tubular member;
- (b) hinge means interconnecting said pole sections for pivotal movement about an axis fixed in position relative to each of the pole sections;
- (c) releasable locking means associated with said hinge and comprising interengageable cooperating portions on respective ones of the pole sections preventing pivotal movement of the hinge when adjacent ends of the pole section are in line in an end-to-end position;
- and
- (d) a hand operable, quick release coupling associated with the threaded elongate member and tubular member selectively to convert from one to the other of fine and coarse adjustment to the length of the support at any position throughout the length of the externally threaded elongate member;
- said quick release coupling comprising a threaded nut secured to the tubular member and circumscribing said threaded elongate member, said threaded nut being variable in size and selectively movable into and out of threaded engagement with said threaded elongate member whereby disengagement of the threads permits free telescopic movement of the members allowing a fast coarse adjustment to the length of the support and engagement of the threads permits a fine infinite adjustment to the length of the support by rotating one of said members relative to the other and releasable lock means associated with the variable sized nut for selectively retaining the latter in threaded engagement with the externally threaded elongate member.
Dependencies are inferred from the claim text.