Patent US6754482B1 successfully refreshed from Google Patents.
US3554329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand brake for a bicycle
Assignee: Shimano Inc
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Filing: 1970-01-29
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Granted: 1971-01-12
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Expires: 1990-01-29
Abstract
Abstract A bicycle braking system in which a secondary apparatus is provided which is independent of the primary braking apparatus, for locking the brake in a braked position. The secondary apparatus may be either a means for operating on the linkage between the brake handle and the brake, or means operating directly on the brake.
Inventors
- 👤 Keizo Shimano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:00
CPC Classifications
B; B62; B62L; B62L3/00; B62L3/02; B62L1/00; B62L1/02; B62L1/06; B62L1/10; B62L1/12; 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
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
365 words
In a brake system for a bicycle having a frame and at least one wheel rotatably mounted on said frame and comprising; 1. handle bar means mounted on said frame; 2. handle lever means pivotally mounted on said handle bar means; 3. brake rods mounted to frictionally contact said wheel to stop rotation thereof; 4. spring means to hold said brake rods normally free of contact from said wheel; and 5. flexible cable means interconnecting said handle lever means and said brake rods whereby movement of said handle lever means causes movement of said brake rods to cause said brake rods to contact said wheel against pressure of said spring means; the combination comprising, A. holder means affixed to said frame, comprising 1. a body held about said frame, 2. shaft means projecting from said body, 3. pressure plate positioned on said shaft means and against said body, and 4. adjustable screw means located at the free end of said shaft means; B. main lever means independent of said handle means rotatably mounted toward one end thereof on said shaft means between said pressure plate and said adjustable screw means, means defining a passage at said one end for inserting said cable means, said screw means being suitable tightened so that said pressure plate will place a pressure against said main lever means sufficient to hold said main lever means in any position against pressure exerted on said cable means by said spring means and by movement of said wheel against said brake rods; and C. knob means attached to said cable means in the vicinity of said one end of said main lever means, said one end being shaped such that rotation of said main lever means will move said knob means rotatably about said shaft means together with said one end, whereby said cable means is caused to move said brake rods against pressure from said spring means and thereby to cause contact of said brake rods against said wheel, and whereby pressure from said pressure plate will hold said main lever means in the resulting position thereby to hold said brake rods in said contacted position and thus enable coasting and parking.
Claim 2
Dependent Claim
365 words
In a brake system for a bicycle having a frame and at least one wheel rotatably mounted on said frame and comprising; 1. handle bar means mounted on said frame; 2. handle lever means pivotally mounted on said handle bar means; 3. brake rods mounted to frictionally contact said wheel to stop rotation thereof; 4. spring means to hold said brake rods normally free of contact from said wheel; and 5. flexible cable means interconnecting said handle lever means and said brake rods whereby movement of said handle lever means causes movement of said brake rods to cause said brake rods to contact said wheel against pressure of said spring means; the combination comprising, A. holder means affixed to said frame, comprising 1. a body held about said frame, 2. shaft means projecting from said body, 3. pressure plate positioned on said shaft means and against said body, and 4. adjustable screw means located at the free end of said shaft means; B. main lever means independent of said handle means rotatably mounted toward one end thereof on said shaft means between said pressure plate and said adjustable screw means, means defining a passage at said one end for inserting said cable means, said screw means being suitable tightened so that said pressure plate will place a pressure against said main lever means sufficient to hold said main lever means in any position against pressure exerted on said cable means by said spring means and by movement of said wheel against said brake rods; and C. knob means attached to said cable means in the vicinity of said one end of said main lever means, said one end being shaped such that rotation of said main lever means will move said knob means rotatably about said shaft means together with said one end, whereby said cable means is caused to move said brake rods against pressure from said spring means and thereby to cause contact of said brake rods against said wheel, and whereby pressure from said pressure plate will hold said main lever means in the resulting position thereby to hold said brake rods in said contacted position and thus enable coasting and parking.
Claim 3
Dependent Claim
10 words
handle lever means pivotally mounted on said handle bar means;
Claim 4
Dependent Claim
10 words
handle lever means pivotally mounted on said handle bar means;
Claim 5
Dependent Claim
6 words
shaft means projecting from said body,
Claim 6
Dependent Claim
6 words
shaft means projecting from said body,
Claim 7
Dependent Claim
12 words
pressure plate positioned on said shaft means and against said body, and
Claim 8
Dependent Claim
12 words
pressure plate positioned on said shaft means and against said body, and
Claim 9
Dependent Claim
12 words
brake rods mounted to frictionally contact said wheel to stop rotation thereof;
Claim 10
Dependent Claim
12 words
brake rods mounted to frictionally contact said wheel to stop rotation thereof;
Claim 11
Dependent Claim
15 words
spring means to hold said brake rods normally free of contact from said wheel; and
Claim 12
Dependent Claim
15 words
spring means to hold said brake rods normally free of contact from said wheel; and
Claim 13
Dependent Claim
215 words
adjustable screw means located at the free end of said shaft means; B. main lever means independent of said handle means rotatably mounted toward one end thereof on said shaft means between said pressure plate and said adjustable screw means, means defining a passage at said one end for inserting said cable means, said screw means being suitable tightened so that said pressure plate will place a pressure against said main lever means sufficient to hold said main lever means in any position against pressure exerted on said cable means by said spring means and by movement of said wheel against said brake rods; and C. knob means attached to said cable means in the vicinity of said one end of said main lever means, said one end being shaped such that rotation of said main lever means will move said knob means rotatably about said shaft means together with said one end, whereby said cable means is caused to move said brake rods against pressure from said spring means and thereby to cause contact of said brake rods against said wheel, and whereby pressure from said pressure plate will hold said main lever means in the resulting position thereby to hold said brake rods in said contacted position and thus enable coasting and parking.
Claim 14
Dependent Claim
215 words
adjustable screw means located at the free end of said shaft means; B. main lever means independent of said handle means rotatably mounted toward one end thereof on said shaft means between said pressure plate and said adjustable screw means, means defining a passage at said one end for inserting said cable means, said screw means being suitable tightened so that said pressure plate will place a pressure against said main lever means sufficient to hold said main lever means in any position against pressure exerted on said cable means by said spring means and by movement of said wheel against said brake rods; and C. knob means attached to said cable means in the vicinity of said one end of said main lever means, said one end being shaped such that rotation of said main lever means will move said knob means rotatably about said shaft means together with said one end, whereby said cable means is caused to move said brake rods against pressure from said spring means and thereby to cause contact of said brake rods against said wheel, and whereby pressure from said pressure plate will hold said main lever means in the resulting position thereby to hold said brake rods in said contacted position and thus enable coasting and parking.
Claim 15
Dependent Claim
51 words
flexible cable means interconnecting said handle lever means and said brake rods whereby movement of said handle lever means causes movement of said brake rods to cause said brake rods to contact said wheel against pressure of said spring means; the combination comprising, A. holder means affixed to said frame, comprising
Claim 16
Dependent Claim
51 words
flexible cable means interconnecting said handle lever means and said brake rods whereby movement of said handle lever means causes movement of said brake rods to cause said brake rods to contact said wheel against pressure of said spring means; the combination comprising, A. holder means affixed to said frame, comprising
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |