US3693469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle gear shift lever
Assignee: MAEDA IND
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Filing: 1971-02-08
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Granted: 1972-09-26
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Expires: 1991-02-08
Abstract
Abstract A rotatable ratchet means is provided within a ring portion of a lever handle in a bicycle gear shift lever apparatus. By tightening an adjusting screw bolt, the ratchet means can be frictionally locked between a washer and a flange portion of a ratchet supporting shaft, whereby the lever handle can be operated smoothly and easily at least in one direction.
Inventors
- 👤 Nobuo Ozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:25
CPC Classifications
B; B62; B62M; B62M25/00; B62M25/02; B62M25/04; B62K; B62K23/00; B62K23/02; B62K23/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268; Y10T74/2028; Y10T74/20287; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
222 words
A bicycle gear shift lever apparatus, comprising a base, a tubular housing connected to said base, a gear shift cable received in said tubular housing, a shaft disposed adjacent said base and having an inner thread, an adjusting screw bolt having a complementary thread and received by said shaft, a pivotal lever handle including an integral ring portion having an inner wall, a cylindrical ratchet means received by said ring portion, said ring portion being rotatably mounted about said ratchet means, a gear shift cable fixing means provided on the outer surface of said ring portion of said lever handle, in order to shift said gear shift cable simultaneously upon pivoting said lever handle, said cylindrical ratchet means being rotatably mounted on said shaft, a claw operatively secured to said inner wall of said ring portion of said lever handle and engageable with said ratchet means, a washer having an opening substantially in its center portion, said opening having a cross section complementary to that of the free end of said shaft, a washer pressing member disposed adjacent said washer, to exert pressure on said washer and to prevent relative rotation between said washer and said ratchet means, and said adjusting screw bolt being screwed into said inner thread of said shaft for frictionally locking said ratchet means in a selected position.
Claim 2
Dependent Claim
222 words
A bicycle gear shift lever apparatus, comprising a base, a tubular housing connected to said base, a gear shift cable received in said tubular housing, a shaft disposed adjacent said base and having an inner thread, an adjusting screw bolt having a complementary thread and received by said shaft, a pivotal lever handle including an integral ring portion having an inner wall, a cylindrical ratchet means received by said ring portion, said ring portion being rotatably mounted about said ratchet means, a gear shift cable fixing means provided on the outer surface of said ring portion of said lever handle, in order to shift said gear shift cable simultaneously upon pivoting said lever handle, said cylindrical ratchet means being rotatably mounted on said shaft, a claw operatively secured to said inner wall of said ring portion of said lever handle and engageable with said ratchet means, a washer having an opening substantially in its center portion, said opening having a cross section complementary to that of the free end of said shaft, a washer pressing member disposed adjacent said washer, to exert pressure on said washer and to prevent relative rotation between said washer and said ratchet means, and said adjusting screw bolt being screwed into said inner thread of said shaft for frictionally locking said ratchet means in a selected position.
Claim 3
Dependent Claim
26 words
The apparatus, as set forth in claim 1, which includes a ring knob secured to a head of said adjusting screw bolt for easier manual operation.
Claim 4
Dependent Claim
17 words
The apparatus, as set forth in claim 1, wherein said adjusting screw bolt comprises a thumb screw.
Claim 5
Dependent Claim
18 words
The apparatus, as set forth in claim 1, wherein said washer pressing member comprises a conical ring plate.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |