Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1993-07-01
1995-01-31
Luong, Vinh T.
Machine element or mechanism
Control lever and linkage systems
Hand operated
74489, 74527, 74528, F16C 110, G05G 1100
Patent
active
053850700
ABSTRACT:
The two-staged brake handle includes two axle bushes, a brake handle and a positioning stand. Two bolts are screwed on the axle bushes, respectively. The positioning stand has an axle center hole wherein an arc gutter is provided around the rim for matching the protuberant rim of the two rotating axle bushes. The top rotating axle bush has a penetrating hole and a bolt hole, and the bottom rotating axle bush has a penetrating hole and a round hole in the corresponding positions. An arc hole and a round hole are provided in the front part of the brake handle. Two bolts are respectively inserted into the positioning stand to interlock into the penetrating holes and bolt hole of the top and bottom rotating axle bushes. A twisting spring is installed in the space between the bolt in the arc hole and the bottom axle bush. Two end hooks of the spring are fixed in the bottom of the positioning stand and against a nut.
REFERENCES:
patent: 4704044 (1987-11-01), Yoshigai
patent: 4899610 (1990-02-01), Bourret
patent: 4903799 (1990-02-01), Romano
patent: 4916967 (1990-04-01), Nakamura
patent: 5078023 (1992-01-01), Scarborough
patent: 5279179 (1994-01-01), Yoshigai
patent: 5287765 (1994-02-01), Scura
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