Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1989-04-14
1989-11-21
Luong, Vinh
Machine element or mechanism
Control lever and linkage systems
Elements
74523, 74528, 74543, 74557, G05G 110
Patent
active
048814253
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 a pawl's second arm and including a head fitted in a recess formed in the knob's 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 its 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 device includes 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), Crylr
patent: 3998109 (1976-12-01), O'Brien
patent: 4569246 (1986-02-01), Katayama et al.
patent: 4603598 (1986-08-01), Tsuji et al.
patent: 4747278 (1988-05-01), Roncelli et al.
patent: 4770057 (1988-09-01), Foggini
Luong Vinh
Toyoda Iron Works Co., Ltd.
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