US4601682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derailleur for a bicycle
Assignee: Shimano Inc
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Filing: 1984-01-27
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Granted: 1986-07-22
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Expires: 2004-01-27
Abstract
Abstract A derailleur for a bicycle, which is operated by a control wire. Between a base member and a movable member a stiff swingable member is positioned and is pivoted to both the members through first and second shafts. A regulator controls the rotation of the movable member with respect to the swingable member so that the movable member is made movable by the swingable member with respect to the base member while the shafts are kept in parallel to each other. The movable member is divided to fixedly sandwich the control wire between the divided segments, thereby ensuring fixing of the wire.
Inventors
- 👤 Masashi Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:21
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/121; B62M9/127
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A derailleur for a bicycle which is operated by a control wire to change the bicycle speed, comprising: a base member, a movable member having a chain guide, a first shaft means associated with said base member, a second shaft means associated with said movable member, a stiff swingable member for allowing said movable member to move with respect to said base member while keeping each of said shaft means parallel to each other and including a first boss supported swingably to said base member by said first shaft means and a second boss for supporting said movable member rotatably by means of said second shaft means, and at least one regulator for regulating rotation of said movable member with respect to said swingable member, said at least one regulator extending lengthwise of and along an outside extremity of said swingable member and being retained at both lengthwise ends radially outwardly relative to said first and second shaft means, at least one of said base member and said movable member being divided into divided portions axially of said first shaft means and said second shaft means respectively, divided end faces of said divided portions being disposed opposite to each other around one of said first and second shaft means, a fixing means for fixing said divided portions being disposed between said divided portions, said control wire including a terminal portions at which said control wire is secured between said divided portions of one of said base member and said movable member.
Claim 2
Dependent Claim
251 words
A derailleur for a bicycle which is operated by a control wire to change the bicycle speed, comprising: a base member, a movable member having a chain guide, a first shaft means associated with said base member, a second shaft means associated with said movable member, a stiff swingable member for allowing said movable member to move with respect to said base member while keeping each of said shaft means parallel to each other and including a first boss supported swingably to said base member by said first shaft means and a second boss for supporting said movable member rotatably by means of said second shaft means, and at least one regulator for regulating rotation of said movable member with respect to said swingable member, said at least one regulator extending lengthwise of and along an outside extremity of said swingable member and being retained at both lengthwise ends radially outwardly relative to said first and second shaft means, at least one of said base member and said movable member being divided into divided portions axially of said first shaft means and said second shaft means respectively, divided end faces of said divided portions being disposed opposite to each other around one of said first and second shaft means, a fixing means for fixing said divided portions being disposed between said divided portions, said control wire including a terminal portions at which said control wire is secured between said divided portions of one of said base member and said movable member.
Claim 3
Dependent Claim
58 words
A derailleur for a bicycle according to claim 1, wherein said first shaft means includes a lock member for said swingable member supported swingably by said first shaft means, said drailleur comprising a holder for an outer sheath for guiding said control wire, said holder being fitted onto said first shaft means and held by said lock member.
Claim 4
Dependent Claim
41 words
A derailleur for a bicycle according to claim 1, wherein said regulator comprises at both lengthwise ends thereof retaining portions so that at least one of said retaining portions is sandwiched between said swingable member and said movable member supported thereto.
Claim 5
Dependent Claim
46 words
A derailleur for a bicycle according to claim 1 wherein said movable member is divided into divided portions axially of said second shaft means, and divided end faces of said divided portions of said movable member are opposite to each other around said second shaft means.
Claim 6
Dependent Claim
57 words
A derailleur for a bicycle according to claim 1, further comprising an outer sheath holder for supporting an outer sheath for guiding said control wire, said outer sheath holder being mounted on one of said base member and said movable member which does not have said terminal portion of said control wire secured between divided portions thereof.
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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |