Patent US5249879A successfully refreshed from Google Patents.
US5249879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick release for a bicycle
Assignee: Ciclosport KW Hochschorner GmbH
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Filing: 1992-04-13
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Granted: 1993-10-05
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Expires: 2012-04-13
Abstract
Abstract A quick release for a bicycle has at least one eccentric cam provided with a bearing bore by which the cam is rotatably mounted on a shaft, which is fitted to a component, which can be secured with the aid of the eccentric cam to a bicycle. The eccentric cam can be rotated by a hand lever into a clamping position and can be released from the latter by rotation in the opposite direction. The hand lever is constructed as a lever arm which is substantially U-shaped. The two free ends of the legs of the U-shaped lever arm are, in each case, arranged in a lever arm fixing bore in the eccentric cam and have a channel, which engages around the shaft, through which the level arm is fixed in the eccentric cam.
Inventors
- 👤 Reinhold Zoor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/02; B62K2206/00; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T403/7064; Y10T403/7066; Y10T403/7071; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/2078; Y10T74/20822
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A quick release for a bicycle comprising: an eccentric cam having a bearing bore; a shaft on which said eccentric cam is rotatably mounted; a hand lever engaged with said shaft; and a component fitted to said shaft which, with the aid of the eccentric cam, can be moved, by rotation of said hand lever in one direction, into a clamped position and, by rotation of said hand lever in an opposite direction, can be released from the clamped position; wherein the hand lever is constructed as a lever arm made from a flexurally rigid material, said lever arm being substantially U-shaped, free ends of U-legs of the substantially U-shaped lever arm being, in each case, located in a lever arm fixing bore in the eccentric cam and having a channel which engages around the shaft to fix the lever arm in the eccentric cam.
Claim 2
Dependent Claim
145 words
A quick release for a bicycle comprising: an eccentric cam having a bearing bore; a shaft on which said eccentric cam is rotatably mounted; a hand lever engaged with said shaft; and a component fitted to said shaft which, with the aid of the eccentric cam, can be moved, by rotation of said hand lever in one direction, into a clamped position and, by rotation of said hand lever in an opposite direction, can be released from the clamped position; wherein the hand lever is constructed as a lever arm made from a flexurally rigid material, said lever arm being substantially U-shaped, free ends of U-legs of the substantially U-shaped lever arm being, in each case, located in a lever arm fixing bore in the eccentric cam and having a channel which engages around the shaft to fix the lever arm in the eccentric cam.
Claim 3
Dependent Claim
31 words
A quick release according to claim 1, wherein two eccentric cams are provided, one of said eccentric cams being provided on each side of the component and fixable to a bicycle.
Claim 4
Dependent Claim
21 words
A quick release according to claim 1, wherein the U-legs of the lever arm are bent in a substantially L-shaped manner.
Claim 5
Dependent Claim
21 words
A quick release according to claim 1, wherein the U-legs of the lever arm are shaped like a cylindrical surface segment.
Claim 6
Dependent Claim
24 words
A quick release according to claim 1, wherein the substantially U-shaped arm is expanded in a C-shaped manner, in a vicinity of the U-cross-arm.
Claim 7
Dependent Claim
21 words
A quick release according to claim 1, wherein the substantially U-shaped lever arm is expanded in a vicinity of the U-cross-arm.
Claim 8
Dependent Claim
15 words
A quick release according to claim 1, wherein the lever arm is made from metal.
Claim 9
Dependent Claim
16 words
A quick release according to claim 1, wherein the lever arm is made from spring steel.
Claim 10
Dependent Claim
25 words
A lever arm according to claim 1, wherein a diameter of each of the U-legs of the lever arm is approximately 3 to 4 mm.
Claim 11
Dependent Claim
17 words
A quick release according to claim 1, wherein the lever arm is provided with a plastic covering.
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) | 1996-10-04 | 1997-04-05 | 1997-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-04 | 2001-04-05 | 2001-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-04 | 2005-04-05 | 2005-10-05 | $7700.00 | Window Closed / Lapsed |