Patent US5727047A successfully refreshed from Google Patents.
US4540193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rear motorcycle fork
Assignee: Honda Motor Co Ltd
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Filing: 1983-06-23
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Granted: 1985-09-10
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Expires: 2003-06-23
Abstract
Abstract A rear fork for a motorcycle having hollow rear arms and metal end pieces for receiving an axle. The rear fork can be made of integrally molded fiber reinforced plastic. The metal end piece conforms to the configuration of the end of the arm and has locating projections which abut the end of the arm. The metal end piece can be inserted into the arm or can externally surround the end of the arm.
Inventors
- 👤 Azusa Noda
- 👤 Nobuo Fujitaka
- 👤 Masaru Fujisaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:28
CPC Classifications
B; B62; B62K; B62K19/00; B62K19/02; B62K19/16; B62K25/00; B62K25/04; B62K25/28; B62K25/286
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
111 words
A rear fork for a motorcycle having a front end for attachment to a motorcycle and rear ends for mounting a wheel and being of approximate U-shape having rear fork arms characterized in that the rear fork arms are hollow and are formed of integrally molded fiber reinforced plastic and in that a metal end piece for receiving an axle is provided to each of said rear fork arms, said metal end piece having a configuration conforming to an end portion of the rear fork arm and locating projections abutting a portion of said end portion, said metal end piece being joined to an end portion of said rear fork arm.
Claim 2
Dependent Claim
111 words
A rear fork for a motorcycle having a front end for attachment to a motorcycle and rear ends for mounting a wheel and being of approximate U-shape having rear fork arms characterized in that the rear fork arms are hollow and are formed of integrally molded fiber reinforced plastic and in that a metal end piece for receiving an axle is provided to each of said rear fork arms, said metal end piece having a configuration conforming to an end portion of the rear fork arm and locating projections abutting a portion of said end portion, said metal end piece being joined to an end portion of said rear fork arm.
Claim 3
Dependent Claim
27 words
A rear fork as claimed in claim 1, characterized in that a portion of each said metal end piece is inserted into said hollow rear fork arm.
Claim 4
Dependent Claim
30 words
A rear fork as claimed in claim 1, characterized in that a portion of each said metal end piece externally surrounds and is shaped to said hollow rear fork arm.
Claim 5
Dependent Claim
31 words
A rear fork as claimed in claim 1, characterized in that a cylindrical pivot pipe is secured to an arc shaped cavity formed at said front end of said rear fork.
Claim 6
Dependent Claim
38 words
A rear fork as claimed in claim 4, characterized in that the pivot pipe is covered with a reinforcing member from a front portion of the pivot pipe to the rear fork so as to straddle over both.
Claim 7
Dependent Claim
25 words
A rear fork as claimed is claim 4, characterized in that the pivot pipe is metal having ends, each end constituting a bearing force-fit portion.
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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |