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US3554158A
Expired / Lapsed
US
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Indicating system of operational state of the parking brake for a bicycle
Assignee: Shimano Inc
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Filing: 1968-10-10
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Granted: 1971-01-12
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Expires: 1988-10-10
Abstract
Abstract A bicycle indicator system for showing the operational state of a brake and the speed of a gear shift system, in which a brake position indicator is moved by a brake handle which also operates the brake, in such a manner as to cover a gear shift indicator when the brake is applied and to uncover the gear shift indicator when the brake is released thereby to permit an operator to determine when the bicycle is in a braked condition and if not what gear shift position is employed.
Inventors
- 👤 Keizo Shimano
- 👤 Takuo Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:08
CPC Classifications
B; B62; B62M; B62M25/00; B62M25/02; B62M25/04; Y; Y10; Y10S; Y10S116/00; Y10S116/20; 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: 4
Claim 1
Independent Claim
273 words
An indicator system for a bicycle having a brake system, a gear shifting system and a frame, comprising: a. a cabinet means affixed to said frame with an opening at the top thereof; b. pivot means affixed to said frame and within said cabinet means; c. first handle means pivotally mounted about said pivot means and extending from said frame through the top of said cabinet means, and operably connected to said brake system; d. means for frictionally maintaining the position of said first handle means until manually moved; e. second handle means pivotally mounted on said pivot means and extending vertically from said frame through the top of said cabinet means and operably connected to said gear shifting system; f. gear shift indicator means attached to said cabinet means and aligned to said opening, said gear shift indicator means having a surface with speed indication indicia thereon; g. needle means connected to said second handle means for pointing opposite the speed corresponding to the particular gear speed used; h. brake position indicator means having sufficient surface area to cover the portion of said gear shift indicator means appearing under said opening; and i. means for connecting said brake position indicator means to said first handle means and above said gear shift indicator means whereby movement of said first handle means to a braked position causes said brake position indicator means to cover said gear shift indicator means from view through said opening, and whereby movement of said first handle means to a nonbraked position causes said brake position indicator means to uncover said gear shift indicator means from view through said opening.
Claim 2
Dependent Claim
273 words
An indicator system for a bicycle having a brake system, a gear shifting system and a frame, comprising: a. a cabinet means affixed to said frame with an opening at the top thereof; b. pivot means affixed to said frame and within said cabinet means; c. first handle means pivotally mounted about said pivot means and extending from said frame through the top of said cabinet means, and operably connected to said brake system; d. means for frictionally maintaining the position of said first handle means until manually moved; e. second handle means pivotally mounted on said pivot means and extending vertically from said frame through the top of said cabinet means and operably connected to said gear shifting system; f. gear shift indicator means attached to said cabinet means and aligned to said opening, said gear shift indicator means having a surface with speed indication indicia thereon; g. needle means connected to said second handle means for pointing opposite the speed corresponding to the particular gear speed used; h. brake position indicator means having sufficient surface area to cover the portion of said gear shift indicator means appearing under said opening; and i. means for connecting said brake position indicator means to said first handle means and above said gear shift indicator means whereby movement of said first handle means to a braked position causes said brake position indicator means to cover said gear shift indicator means from view through said opening, and whereby movement of said first handle means to a nonbraked position causes said brake position indicator means to uncover said gear shift indicator means from view through said opening.
Claim 3
Dependent Claim
87 words
The indicator system of claim 1 further comprising a curved transparent plate mounted within said opening of said cabinet means, wherein said gear shift indicator means comprises a curved surface located below said transparent plate, wherein said brake position indicator means comprises a curved surface located between said transparent plate and said gear shift indicator means, and wherein said connecting means comprises a connecting rod means extending from said brake position indicating means, and fixing means for affixing said connecting rod means to said first handle means.
Claim 4
Dependent Claim
120 words
The indicator system of claim 1, wherein said brake position indicator means comprises a reel and shaft arrangement mounted on said cabinet, a flexible tape normally reeled onto said reel shaft, and a spring means for normally holding said tape in a reeled position, and wherein saId connecting means connects one end of said tape such that movement of said first handle means will pull said tape from said reel against pressure from said spring means thereby to cover said gear shift indicator means from view through said opening, and movement of said first handle means in the opposite direction enables said spring means to uncover said tape from said gear shift indicator means to be viewable through said opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |