US4051738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single point resilient and adjustable mount for derailler
Assignee: Beatrice Companies Inc
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Filing: 1976-07-06
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Granted: 1977-10-04
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Expires: 1996-07-06
Abstract
Abstract A single point resilient and adjustable mount for a derailler which allows the rear derailler unit which supports and moves the roller cage to be flexibly and adjustably attached to the holding bracket attached to the axle and frame of the bicycle and which has a single adjustment for allowing the derailler unit to be angularly moved relative to the bracket so as to prevent bending of the bracket and derailler and easy and simple adjustment of the derailler.
Inventors
- 👤 Walter Dian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:57
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/121; B62M9/125; B62M9/124; B62M9/1248
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A rear derailler for a bicycle having a rear wheel attached to its frame, comprising a bracket attached to the frame of the bicycle adjacent the rear wheel, a derailler member movably attached to said bracket member and flexibly biased away from the plane of the rear wheel, such that upon the application of a force transverse to the plane of the rear wheel acting on said derailler member, the derailler member can move about said bracket and toward the rear wheel, so as to prevent damage to the derailler.
Claim 2
Dependent Claim
90 words
A rear derailler for a bicycle having a rear wheel attached to its frame, comprising a bracket attached to the frame of the bicycle adjacent the rear wheel, a derailler member movably attached to said bracket member and flexibly biased away from the plane of the rear wheel, such that upon the application of a force transverse to the plane of the rear wheel acting on said derailler member, the derailler member can move about said bracket and toward the rear wheel, so as to prevent damage to the derailler.
Claim 3
Dependent Claim
24 words
A rear derailler unit according to claim 1 including means for adjusting the outer angular position of said derailler member relative to said bracket.
Claim 4
Dependent Claim
35 words
A rear derailler according to claim 1 including a pivot shaft which extends through said bracket and said derailler member on an axis generally parallel to the plane of the rear wheel of the bicycle.
Claim 5
Dependent Claim
74 words
A rear derailler according to claim 3 including a bolt threadedly received in an opening in said bracket, and a spring mounted about said bolt and having one end engageable with said bracket and its other end engageable with said derailler member to bias it away from said rear wheel, and the head of said bolt engageable with said derailler member to establish a limiting position of said derailler member relative to said bracket.
Claim 6
Dependent Claim
53 words
A rear derailler member according to claim 4 wherein said derailler member is formed with an opening and the head of said bolt mounted on said derailler member on a first side and said spring mounted about said bolt on the second side thereof to bias the derailler member away from said bracket.
Claim 7
Dependent Claim
13 words
A rear derailler according to claim 5 wherein said derailler member is channel-shaped.
Claim 8
Dependent Claim
38 words
A rear derailler according to claim 6 wherein said bracket is formed of a first planar member attached to the bicycle and a channel shaped coupling member through which said pivot shaft extends to support said derailler member.
Claim 9
Dependent Claim
19 words
A rear derailler according to claim 7 wherein said channel-shaped coupling member fits within said channel shaped derailler member.
Claim 10
Dependent Claim
28 words
A rear derailler according to claim 8 wherein said channel-shaped derailler member is formed with an outwardly bent portion and said bolt extending through said outwardly bent portion.
Claim 11
Dependent Claim
19 words
A rear derailler according to claim 9 wherein said coupling member has outer curved edges adjacent said derailler member.
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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |