US4742884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake device for a motorcycle
Assignee: Honda Motor Co Ltd
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Filing: 1986-07-30
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Granted: 1988-05-10
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Expires: 2006-07-30
Abstract
Abstract A motorcycle having a cantilevered type rear swing arm including a rear brake between the swing arm and the rear wheel. An air inlet is provided on one side of the other rear swing arm in a thin sidewall. An air outlet through a thick sidewall adjacent the brake allows air passage through the swing arm for cooling of the brake.
Inventors
- 👤 Yoshimi Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:18
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/005; B60; B60T; B60T1/00; B60T1/02; B60T1/06; B60T1/065; F; F16; F16D; F16D65/00; F16D65/78; F16D65/84; F16D65/847
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
A brake device for a motorcycle, comprising a rear swing arm, said rear swing arm being hollow and having two sidewalls spaced apart in defining the hollow interior; a cantilevered rear axle extending from said arm; a wheel hub rotatably mounted on said axle; a brake located between said arm and said wheel hub; an air inlet through one of said vertical sidewalls on a side of said arm opposite to said brake; and an air outlet through the other said side wall adjacent said brake for cooling thereof.
Claim 2
Dependent Claim
89 words
A brake device for a motorcycle, comprising a rear swing arm, said rear swing arm being hollow and having two sidewalls spaced apart in defining the hollow interior; a cantilevered rear axle extending from said arm; a wheel hub rotatably mounted on said axle; a brake located between said arm and said wheel hub; an air inlet through one of said vertical sidewalls on a side of said arm opposite to said brake; and an air outlet through the other said side wall adjacent said brake for cooling thereof.
Claim 3
Dependent Claim
12 words
The brake device of claim 1 wherein said sidewalls are substantially vertical.
Claim 4
Dependent Claim
22 words
The brake device of claim 2 wherein said vertical sidewall containing said outlet is thicker than said vertical sidewall containing said inlet.
Claim 5
Dependent Claim
22 words
The brake device of claim 2 wherein said inlet includes a forwardly opening scoop on the outer surface of said vertical sidewall.
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) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |