Machine element or mechanism – Control lever and linkage systems – Variable output force
Reexamination Certificate
2006-04-12
2008-11-11
Kim, Chong H (Department: 3682)
Machine element or mechanism
Control lever and linkage systems
Variable output force
Reexamination Certificate
active
07448296
ABSTRACT:
The present invention is, in a brake pedal apparatus having: (a) an operating pedal which is disposed pivotably about a first axis; (b) a pivot member which is disposed pivotably about a second axis parallel to the first axis, and which is connected to the operating pedal via a connecting link so as to be mechanically pivoted about the second axis in response to a depressing operation effected on the operating pedal; and (c) an output member which is to be mechanically pressed or pulled as a result of pivot motion of the pivot member, in that: (d) the connecting link has a first link disposed on a member on a side of the operating pedal pivotably about a first connecting pin parallel to the first axis, and a second link disposed on a member on a side of the pivot member pivotably about a second connecting pin parallel to the first axis; (e) the first and second links are connected to each other via a third connecting pin pivotably relative to each other, and are integrally displaced with constant attitudes thereof that have the third connecting pin positioned on a straight line connecting the first and second connecting pins in a first region of a pedal stroke of the operating pedal; and (f) in a second region that is different from the first region, one of the first and second links is in contact with a stopper that is provided on the member on the side of the operating pedal or on the member on the side of the pivot member, so as to be unpivotably positioned, whereby the first and second links are pivoted relative to each other about the third connecting pin.
REFERENCES:
patent: 3861237 (1975-01-01), Mounts
patent: 3911760 (1975-10-01), Elbers et al.
patent: 3988945 (1976-11-01), Fasano
patent: 4638680 (1987-01-01), Albrecht
patent: 5823064 (1998-10-01), Cicotte
patent: 7017441 (2006-03-01), Hayashihara et al.
patent: 7219576 (2007-05-01), Leonard et al.
patent: 5-185912 (1993-07-01), None
patent: 7-205776 (1995-08-01), None
Finnegan Henderson Farabow Garrett & Dunner, LLP.
Kim Chong H
Toyoda Iron Works Co., Ltd.
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