Patent ID: 7001107
Filing Date: 2006-02-21
Classification: B63C,Y10T

Abstract:
1. An air cylinder fastening device comprising: a belt adapted for releasably fastening said air cylinder to a harness used to carry the air cylinder on a user's back and tightening means for said belt; said tightening means comprising first and second slider members opposed to each other on a peripheral surface of said air cylinder as viewed in a circumferential direction of said air cylinder and being slidable in said circumferential direction and a coupler member extending between said first and second slider members and adapted to bring the first and second slider members nearer to each other of further apart from each other; each of said first and second slider members adapted to fix longitudinally opposite ends of said belt in a length-adjustable or a length-unadjustable manner and having a surface destined to come in contact with said peripheral surface, a pair of supporting walls spaced from each other in an axial direction of said air cylinder and extending in parallel to each other and a rotor extending in parallel to said axial direction of said air cylinder and having a pair of shafts rotatably supported by said pair of supporting walls; and said coupler member having a rod-like portion extending orthogonally to said rotor wherein said rod-like portion comprises one end fixed to said rotor of said first slider member so as to be not rotatable in a peripheral direction of said rod-like portion, a segment extending from said one end toward said second slider member and slidably penetrating through said rotor of said second slider member in a longitudinal direction of said rod-like portion, a control knob screwed on a threaded part extending outward from said rotor so that said control knob can move in the longitudinal direction of said rod-like portion and a spring interposed between said rotor of said second slider member and said control knob to bias said control knob to be spaced from said rotor.