Patent US4674353A successfully refreshed from Google Patents.
US4674353A
Expired / Lapsed
US
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Brake operating device
Assignee: Yoshigai Kikai Kinzoku KK
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Filing: 1986-01-08
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Granted: 1987-06-23
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Expires: 2006-01-08
Abstract
Abstract An operating unit including a brake operating lever capable of being grasped is mounted to a handlebar or the like. The brake unit for applying a braking force to the members to be controlled such as the wheels or the like is connected by a Bowden cable. In addition to the brake returning spring provided on the side of the afore-mentioned brake unit, a side of the brake operating lever is equipped with a returning spring. One end of the returning spring is mounted to the housing, while another end thereof is held on the side of the brake operating lever thereby exerting a force in the direction in which the lever is to be returned after being grasped and released.
Inventors
- 👤 Toshiharu Yoshigai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
B; B62; B62L; B62L1/00; B62L1/02; B62L1/06; B62L3/00; B62L3/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268; Y10T74/2028; Y10T74/20287; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20438
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
228 words
A brake operating device in the construction of which the brake operating device includes a housing mounted to a handlebar and the like and a brake operating lever, having a portion capable of being grasped, which is mounted to the housing; brake means for applying a brake to members to be controlled such as wheels and the like; and a Bowden cable including an inner wire and an outer wire which connect the brake means and the brake operating means to each other so that the brake means may transmit a grasping force applied by the brake operating lever in a direction of applying a brake against an associated brake returning spring, being characterized in that a lever returning spring (23) is provided which has one end mounted to a side of the housing (9) and another end held to a side of the brake operating lever (11) in a direction for returning said lever, and lever returning spring extending from said one end, along a bend formed by an internal surface of the operating lever, to said another end which is disposed at the portion of the lever that is capable of being grasped in a manner applying a force in a direction against the operating direction (25) of the lever (11), so as to act in a direction in which the lever is to be returned.
Claim 2
Dependent Claim
228 words
A brake operating device in the construction of which the brake operating device includes a housing mounted to a handlebar and the like and a brake operating lever, having a portion capable of being grasped, which is mounted to the housing; brake means for applying a brake to members to be controlled such as wheels and the like; and a Bowden cable including an inner wire and an outer wire which connect the brake means and the brake operating means to each other so that the brake means may transmit a grasping force applied by the brake operating lever in a direction of applying a brake against an associated brake returning spring, being characterized in that a lever returning spring (23) is provided which has one end mounted to a side of the housing (9) and another end held to a side of the brake operating lever (11) in a direction for returning said lever, and lever returning spring extending from said one end, along a bend formed by an internal surface of the operating lever, to said another end which is disposed at the portion of the lever that is capable of being grasped in a manner applying a force in a direction against the operating direction (25) of the lever (11), so as to act in a direction in which the lever is to be returned.
Claim 3
Dependent Claim
31 words
A brake operating device as defined in claim 1, wherein the lever returning spring (23) comprises a plate spring, is mounted to the housing (9) by bolts (24) and the like.
Claim 4
Dependent Claim
45 words
A brake operating device as defined in claim 1, wherein said handlebar is of the drop type and wherein said brake operating means includes a safety lever attached to said housing, said returning spring acting to return both said operating lever and said safety lever.
Claim 5
Dependent Claim
16 words
A brake operating device as defined in claim 1, wherein the handlebar is of standard type.
Claim 6
Dependent Claim
17 words
A brake operating device as defined in claim 1, wherein the handlebar is of the drop type.
Claim 7
Dependent Claim
45 words
A brake operating device as defined in claim 2, wherein said handlebar is of the drop type and wherein said brake operating means includes a safety lever attached to said housing, said returning spring acting to return both said operating lever and said safety lever.
Claim 8
Dependent Claim
16 words
A brake operating device as defined in claim 2, wherein the handlebar is of standard type.
Claim 9
Dependent Claim
17 words
A brake operating device as defined in claim 2, wherein the handlebar is of the drop type.
References Cited (Backward Citations)
US648769A
Cited
GB191420124A
Cited
FR1021664A
Cited
US3997030A
Cited
US4023653A
Cited
JPS5231623A
Cited
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Cited
US4526057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |