Patent US4009768A successfully refreshed from Google Patents.
US4009768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caliper brake for a bicycle
Assignee: Shimano Inc
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Filing: 1976-02-19
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Granted: 1977-03-01
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Expires: 1996-02-19
Abstract
Abstract A caliper brake for a bicycle, which has a pivot support and an enlarged diameter portion, which pivot support is formed independently of a bolt for mounting the brake on the bicycle frame and pivotally supporting a pair of brake arms with brake shoes so as to form a major portion of the brake and which enlarged diameter portion is formed of a threaded hole screwable with the bolt. The bolt is made detachable and only selected from ones of various lengths so that the major portion may be made variable to meet any kind and size of the bicycle and the brake applying position thereto to thereby make the major portion available in common.
Inventors
- 👤 Yuji Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:28
CPC Classifications
B; B62; B62L; B62L1/00; B62L1/02; B62L1/06; B62L1/10; B62L1/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
204 words
A side-pull type caliper brake for a bicycle having a frame and a wheel including a rim, comprising: a. a pair of brake shoes on opposite sides of the rim, respectively; b. a pair of brake arms carrying said brake shoes, respectively, one of said brake arms being C-like shaped and the other of said brake arms being Y-like shaped; c. a single support, rotatably supporting said brake arms, including a pivot having a first portion including an outer periphery supporting thereon said brake arms and a second enlarged diameter portion extending integrally from one end of said first portion, said first portion at the other end thereof having first screw threads at said outer periphery and a first rotary control means for adjusting the space between the rim and each of said brake shoes, said enlarged diameter portion having a first bore extending axially of said pivot and including second inner screw threads; and d. mounting means, independently connected to said single support, including a rod-like member having at one end third screw threads in mesh with said second inner screw threads, and secondary rotary control means, at the other end of said rod-like member, for attaching said single support to the frame.
Claim 2
Dependent Claim
204 words
A side-pull type caliper brake for a bicycle having a frame and a wheel including a rim, comprising: a. a pair of brake shoes on opposite sides of the rim, respectively; b. a pair of brake arms carrying said brake shoes, respectively, one of said brake arms being C-like shaped and the other of said brake arms being Y-like shaped; c. a single support, rotatably supporting said brake arms, including a pivot having a first portion including an outer periphery supporting thereon said brake arms and a second enlarged diameter portion extending integrally from one end of said first portion, said first portion at the other end thereof having first screw threads at said outer periphery and a first rotary control means for adjusting the space between the rim and each of said brake shoes, said enlarged diameter portion having a first bore extending axially of said pivot and including second inner screw threads; and d. mounting means, independently connected to said single support, including a rod-like member having at one end third screw threads in mesh with said second inner screw threads, and secondary rotary control means, at the other end of said rod-like member, for attaching said single support to the frame.
Claim 3
Dependent Claim
31 words
A brake according to claim 1 wherein said first rotary control means includes a polygonal recess at the center of the end face of said other end of said first portion.
Claim 4
Dependent Claim
60 words
A brake according to claim 1 wherein said first rotary control means includes a second bore at the radial center of said first portion and extending axially thereof from said other end of said first portion to said second inner threads, said second bore at the end face of said other end of said first portion having a polygonal shape.
Claim 5
Dependent Claim
30 words
A brake according to claim 1 wherein said second rotary control means includes a head on said rod-like member and having a polygonal recess for rotatably controlling said rod-like member.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |