Geometrical instruments – Distance measuring – By flexible tape
Patent
1998-11-09
2000-12-19
Bennett, G. Bradley
Geometrical instruments
Distance measuring
By flexible tape
G01B 310
Patent
active
061612995
ABSTRACT:
A plate shaped rapid brake device for a tape rule accommodated in the tape housing with a brake block protruding towards an upper edge of a tape outlet, at one end, with a pivot axis laid transversely at the other end. A projected block protruded in an opposite direction to the brake block, is formed near the brake block. The pivot axis is inserted into holes in inner walls of both sides of the tape housing, and both the projected block and the brake block are respectively exposed out of a hole provided at the bottom portion of the tape housing so that the tape may slightly touch the projected block during its extending and rewinding motion. Moving the brake block towards the upper edge of the tape outlet and reducing size of the tape outlet rapidly clamps the moving tape and stops its movement. There are two balancers extending outwardly from opposite sides of the brake block for a balancing brake function of the brake device when the brake block moves by preventing the brake device from swinging. Moreover, the brake block can further buffer vibration of the tape arising from its rapid rewinding.
REFERENCES:
patent: 5395069 (1995-03-01), Chen
patent: 5531395 (1996-07-01), Hsu
patent: 5575077 (1996-11-01), Jung et al.
patent: 5657551 (1997-08-01), Lin
patent: 5791581 (1998-08-01), Loeffler Tae
Bennett G. Bradley
Index Measuring Tape Co., Ltd.
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