US4372178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating force transmitting apparatus
Assignee: Komatsu Ltd
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Filing: 1980-02-28
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Granted: 1983-02-08
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Expires: 2000-02-28
Abstract
Abstract An operating force transmitting apparatus adapted to be used for brake or clutch operation of a vehicle which is capable of reducing required operating force. The apparatus comprises a pair of brackets fixedly secured to a vehicle frame, a first shaft mounted on said pair of brackets, a first cylinder rotatably mounted on the first shaft, the first cylinder having an operating member and a lever fixedly secured thereto, a cam follower mounted for rotation on the lever, a second shaft mounted on the pair of the brackets, a second cylinder rotatably mounted on the second shaft, a cam link fixedly secured to the second cylinder, and a spring for urging the cam link to always contact with the cam follower.
Inventors
- 👤 Shingo Ota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:29
CPC Classifications
F; F16; F16D; F16D23/00; F16D23/12; G; G05; G05G; G05G7/00; G05G7/02; G05G7/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20528; Y10T74/20558
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
An operating force transmitting apparatus to be used for brake or clutch operation of a vehicle, comprising: a frame of the vehicle; a pair of brackets fixedly secured to said frame; first shaft means mounted on said pair of brackets astride thereto; first cylinder means rotatably mounted on said first shaft means, said first cylinder means having an operating member and a lever fixedly secured thereto; cam follower means mounted for rotation on said lever; second shaft means mounted on said pair of brackets astride thereto; second cylinder means rotatably mounted on said second shaft means; cam link means fixedly secured to said second cylinder means; spring means connected to said frame and said cam link means for urging said cam link means to always contact with said cam follower means in such a manner that the contact point of said cam link means and said cam follower means is continuously varied as said operating member is moved; rod means fixedly secured to said second cylinder means; and linkage means pivotally connected at one end thereof to said rod means, the other end of which is connected to a member to be controlled and operated.
Claim 2
Dependent Claim
195 words
An operating force transmitting apparatus to be used for brake or clutch operation of a vehicle, comprising: a frame of the vehicle; a pair of brackets fixedly secured to said frame; first shaft means mounted on said pair of brackets astride thereto; first cylinder means rotatably mounted on said first shaft means, said first cylinder means having an operating member and a lever fixedly secured thereto; cam follower means mounted for rotation on said lever; second shaft means mounted on said pair of brackets astride thereto; second cylinder means rotatably mounted on said second shaft means; cam link means fixedly secured to said second cylinder means; spring means connected to said frame and said cam link means for urging said cam link means to always contact with said cam follower means in such a manner that the contact point of said cam link means and said cam follower means is continuously varied as said operating member is moved; rod means fixedly secured to said second cylinder means; and linkage means pivotally connected at one end thereof to said rod means, the other end of which is connected to a member to be controlled and operated.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |