US3924487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable traction and release device
Assignee: Huret et ses Fils SA
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Filing: 1974-11-04
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Granted: 1975-12-09
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Expires: 1994-11-04
Abstract
Abstract The traction and release device includes a control lever which pivots around a drum about which a helicoidal spring is mounted. One of the two ends of the spring presents an annular form to engage a strengthened end of the cable, the two ends of said spring each extending radially towards the spring exterior so as to engage in the recesses provided in the body of the lever. The device is intended to control the traction and release of a cable such as that used in a derailleur or other bicycle gear change.
Inventors
- 👤 Roger Huret
- 👤 Jacques Huret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:25
CPC Classifications
B; B62; B62M; B62M25/00; B62M25/02; B62M25/04; B62K; B62K23/00; B62K23/02; B62K23/06; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268; Y10T74/2028; Y10T74/20287; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20438; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
223 words
In a cable traction and release device, particularly for a bicycle change speed device, comprising, a control lever having a transverse opening, a cable with which the control level co-operates, a fixed supporting axle in the form of a drum about which the lever pivots and which is located in said transverse opening, the drum being arranged to be fixed to a part of a bicycle such as a bicycle frame, an immobilization system intended to hold an end of the cable in a selected position on application of a tractive force to the cable by an adjusting spring incorporated in the change speed device, a friction mechanism including a cylindrical helical spring which presses on the drum, incorporated in the immobilization system, one end of the spring co-operating with said lever; improvement wherein one of two ends of the friction spring is connected directly to one end of the cable in such a way that any traction applied to said one end of the spring in a direction towards another end of the cable tends to press the spring into the drum, and the control lever includes two lugs each of which is associated with an end of the said spring and is able to urge the corresponding end of the spring in one of two opposing directions of friction spring disengagement.
Claim 2
Dependent Claim
223 words
In a cable traction and release device, particularly for a bicycle change speed device, comprising, a control lever having a transverse opening, a cable with which the control level co-operates, a fixed supporting axle in the form of a drum about which the lever pivots and which is located in said transverse opening, the drum being arranged to be fixed to a part of a bicycle such as a bicycle frame, an immobilization system intended to hold an end of the cable in a selected position on application of a tractive force to the cable by an adjusting spring incorporated in the change speed device, a friction mechanism including a cylindrical helical spring which presses on the drum, incorporated in the immobilization system, one end of the spring co-operating with said lever; improvement wherein one of two ends of the friction spring is connected directly to one end of the cable in such a way that any traction applied to said one end of the spring in a direction towards another end of the cable tends to press the spring into the drum, and the control lever includes two lugs each of which is associated with an end of the said spring and is able to urge the corresponding end of the spring in one of two opposing directions of friction spring disengagement.
Claim 3
Dependent Claim
26 words
A device according to claim 1, wherein the one end of the cable operatively connected to the lever passes through an opening in the friction spring.
Claim 4
Dependent Claim
44 words
A device according to claim 1, wherein the end of the lever having the transverse opening has around the latter at least one lateral lug recess which opens into the said opening and serves to receive one of the ends of the friction spring.
Claim 5
Dependent Claim
40 words
A device according to claim 3, wherein one of the faces of the lug recess serves as a lug for co-operation with one of the ends of the spring in one of the two directions of disengagement of the latter.
Claim 6
Dependent Claim
64 words
A device according to claim 3, wherein the lug recess accommodating the spring end which is connected to the cable, communicates with the exterior through a coupling hole which opens into a peripheral guide-type orifice which is provided concentrically to the axle on the periphery of the widened end of the lever and is intended for reception of the front end of the cable.
Claim 7
Dependent Claim
45 words
A device according to claim 1 wherein the friction spring is located in an annular cylindrical space between the drum and the transverse opening of the lever and in position on the drum it has a certain radial play in relation to the said opening.
Claim 8
Dependent Claim
20 words
A device according to claim 1 wherein at least one of the ends of the friction spring is bent outwardly.
Claim 9
Dependent Claim
21 words
A device according to claim 1 wherein at least one of the ends of the friction spring is bent radially outwards.
Claim 10
Dependent Claim
50 words
A device according to claim 1 wherein the end of the friction spring connected to the cable is formed in the shape of an eyelet, and the end of the cable passes through this eyelet to present an enlargement which bears against one of the faces of the said eyelet.
Claim 11
Dependent Claim
53 words
A device according to claim 1, wherein the drum and a cylindrical part of the friction spring are capped by a support bush which has two passage type slits for the ends of the friction spring and which serves as a support for the end of the cable connected to the friction spring.
Claim 12
Dependent Claim
82 words
A device according to claim 10, wherein the support bush is located in the transverse opening of the lever and is formed with a peripheral slit which opens into the said opening and into at least one lateral lug recess made in the said lever and in communication with the said opening, and the said slit serves to receive the end of the cable connected to the friction spring and is closed off by part of the surface of the said bush.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |