Patent US3759352A successfully refreshed from Google Patents.
US3759352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycle brake having brake adjusting mechanism
Assignee: Raleigh Industries Ltd
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Filing: 1971-05-12
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Granted: 1973-09-18
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Expires: 1991-05-12
Abstract
Abstract A cycle brake for applying a braking action to the wheel of a cycle through a flexible cable and having an adjustable support for the cable sheath that is automatically movable to compensate for wear of the cycle brake elements upon pivotal movement of a brake lever beyond a predetermined point during a braking action.
Inventors
- 👤 J Toplis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:50
CPC Classifications
B; B62; B62L; B62L3/00; B62L3/02; F; F16; F16D; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; Y; Y10; Y10S; Y10S414/00; Y10S414/13; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20256; Y10T74/20268; Y10T74/2028; Y10T74/20287; Y10T74/20396; Y10T74/20402; Y10T74/20408
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
171 words
A cycle brake for applying a braking action to the wheel of a cycle through a flexible cable, wherein said cable is enclosed in a sheath, comprising a housing, a support for said sheath mounted in said housing for longitudinal movement therein, an adjuster screw operatively engaging said support for imparting the longitudinal movement thereto, means for rotating said adjuster screw including a ratchet wheel engaging said adjuster screw and a leaf spring pivotally mounted in said housing and engageable with said ratchet wheel for producing a rotating movement thereof, and a brake operating lever pivotally mounted on said housing and engaging said cable for imparting a braking action thereto in operation of said brake, said lever further operatively engaging said leaf spring for urging said leaf spring toward said ratchet wheel, wherein said leaf spring is engageable with said ratchet wheel to produce the rotating movement thereof and the longitudinal adjusting movement of said sheath support when the lever is pivotally movable beyond a predetermined point during a braking operation.
Claim 2
Dependent Claim
171 words
A cycle brake for applying a braking action to the wheel of a cycle through a flexible cable, wherein said cable is enclosed in a sheath, comprising a housing, a support for said sheath mounted in said housing for longitudinal movement therein, an adjuster screw operatively engaging said support for imparting the longitudinal movement thereto, means for rotating said adjuster screw including a ratchet wheel engaging said adjuster screw and a leaf spring pivotally mounted in said housing and engageable with said ratchet wheel for producing a rotating movement thereof, and a brake operating lever pivotally mounted on said housing and engaging said cable for imparting a braking action thereto in operation of said brake, said lever further operatively engaging said leaf spring for urging said leaf spring toward said ratchet wheel, wherein said leaf spring is engageable with said ratchet wheel to produce the rotating movement thereof and the longitudinal adjusting movement of said sheath support when the lever is pivotally movable beyond a predetermined point during a braking operation.
Claim 3
Dependent Claim
48 words
A cycle brake as claimed in claim 1, said leaf spring normally abutting said ratchet wheel and being deformed by said brake lever upon movement of said brake lever beyond the predetermined point, wherein said leaf spring positively engages the ratchet wheel for producing the adjustable rotating movement.
Claim 4
Dependent Claim
46 words
A cycle brake as claimed in claim 2, a portion of said adjuster screw being accessible externally of said housing for manual rotation of said adjuster screw independently of said leaf spring, thereby providing for immediate brake adjustment irrespective of the movement of said brake lever.
Claim 5
Dependent Claim
39 words
A cycle brake as claimed in claim 1, said support for said sheath being internally threaded and operatively engaging said adjuster screw in threaded relation, wherein rotation of said adjuster screw produces a longitudinal movement of said sheath support.
Claim 6
Dependent Claim
37 words
A cycle brake as claimed in claim 4, said sheath support having a central aperture formed therein for receiving an end of the cable sheath, and an opening communicating with said aperture through which said cable extends.
Claim 7
Dependent Claim
60 words
A cycle brake as claimed in claim 1, said housing including a bracket for attachment to a cycle and a shroud mounted on said bracket, a resilient clip engaging said shroud for the mounting thereof on said bracket, said lever being pivotally mounted on said bracket, and means on said lever for removably attaching an end of said cable thereto.
Claim 8
Dependent Claim
59 words
A cycle brake as claimed in claim 1, said lever having a projection formed thereon that overlies a portion of said leaf spring, said projection being movable upon pivotal movement of said lever to force said leaf spring toward said ratchet wheel and into positive contact with said ratchet wheel when the lever is pivotal beyond the predetermined point.
Claim 9
Dependent Claim
46 words
A cycle brake as claimed in claim 7, means in said housing For adjusting the position of said leaf spring relative to the ratchet wheel, thereby adjusting the distance required for movement by the brake operating lever before engagement of the spring with the ratchet wheel.
Claim 10
Dependent Claim
37 words
A cycle brake as claimed in claim 8, said means for adjusting the position of the leaf spring including a screw that is adjustably mounted in said housing and is located in abutting relation with said spring.
References Cited (Backward Citations)
FR900645A
Cited
US3199640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |