Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1988-05-26
1989-10-31
Luong, Vinh
Machine element or mechanism
Control lever and linkage systems
Elements
74523, 74528, 74543, 74557, G05G 110
Patent
active
048769142
ABSTRACT:
A device for selectively placing an automobile's parking brake in its operative and inoperative positions, including (a) a pivotable lever connected to the brake via a cable; (b) a stationary sector having a plurality of teeth; (c) a pawl pivotably supported by the lever and engageable at its first arm with the sector's teeth; (d) a knob fitted over its axial part in a longitudinal hole formed in a lever's free-end portion, the knob being retractable inward upon pushing thereof; (e) a release rod connected at its first end to pawl's second arm and including a head fitted in a recess formed in the knob's axial part; (f) a first spring permitting the pawl to be pivoted in a direction in which to cause its first arm to be engaged with the sector; and (g) a second spring fitted in the knob's recess to bias the rod's head to be engaged with a stopper provided in the recess. The knob has a cylindrical shape and is fitted in the lever's longitudinal hole about is axis, while the rod's head has a pair of opposite side surfaces fitly engageable with a pair of opposed wall surfaces of the knob's recess, respectively, whereby the knob is not rotatable in the lever's longitudinal hole. Another embodiment of the above elements (a)-(g) and a sleeve having an inside hole through which a shaft of the release rod in place extends.
REFERENCES:
patent: 3216276 (1965-11-01), Nagy
patent: 3731272 (1973-05-01), Cryer
patent: 3998109 (1976-12-01), O'Brien
patent: 4747278 (1988-05-01), Roncelli et al.
Luong Vinh
Toyoda Iron Works Co., Ltd.
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