US5901974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle, anti-dive braking system
Assignee: SCHWIN ACQUISITION LLC
•
Filing: 1996-09-04
•
Granted: 1999-05-11
•
Expires: 2016-09-04
Abstract
Abstract A bicycle braking system comprising a bicycle frame having a rear wheel suspension mechanism connected thereto. Rotatably connected to the rear wheel suspension mechanism is the rear wheel axle of the bicycle rear wheel which includes a braking surface. Connected to the rear wheel suspension mechanism is a braking assembly which is selectively engageable to the braking surface of the rear wheel. The braking assembly is configured such that the engagement thereof to the braking surface facilitates the transfer of braking force to and the actuation of the rear wheel suspension mechanism in a manner countering the unweighting thereof normally resulting from the braking of the bicycle.
Inventors
- 👤 James S. Busby
- 👤 Michael Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:34
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/28; B62K25/286; B62L; B62L3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
286 words
A bicycle braking system comprising; a bicycle frame; a rear wheel suspension mechanism connected to the bicycle frame and including: an upper link pivotally connected to the bicycle frame; a pair of seat stay members having upper ends pivotally connected to the upper link and lower ends; a pair of rear wheal carrying members attached to the lower ends of respective ones of the seat stay members; a pair of chain stay members having front ends pivotally connected to the bicycle frame and back ends pivotally connected to respective ones of the rear wheel carrying members; and a shock absorber having a first end connected to the seat stay Members and a second end connected to the upper link; a rear wheel including a braking surface and having a rear wheel axle which defines an axis and is rotatably connected to the rear wheel carrying members of the rear wheel suspension mechanism; a caliper arm pivotally connected to one of the rear wheel carrying members of the rear wheel suspension mechanism; a brake caliper attached to the caliper arm and selectively engageable to the braking surface; and a pull link having a first end pivotally connected to the caliper arm and a second end pivotally connected to one of the chain stay members of the rear wheel suspension mechanism, wherein the engagement of the brake caliper to the braking surface induces the pivotal movement of the caliper arm which facilitates the transfer of braking force to the rear wheel suspension mechanism and the compression of the shock absorber thereof which absorbs the braking force transferred to the rear wheel suspension mechanism in a manner countering the unweighting thereof normally resulting from the braking of the bicycle.
Claim 2
Dependent Claim
286 words
A bicycle braking system comprising; a bicycle frame; a rear wheel suspension mechanism connected to the bicycle frame and including: an upper link pivotally connected to the bicycle frame; a pair of seat stay members having upper ends pivotally connected to the upper link and lower ends; a pair of rear wheal carrying members attached to the lower ends of respective ones of the seat stay members; a pair of chain stay members having front ends pivotally connected to the bicycle frame and back ends pivotally connected to respective ones of the rear wheel carrying members; and a shock absorber having a first end connected to the seat stay Members and a second end connected to the upper link; a rear wheel including a braking surface and having a rear wheel axle which defines an axis and is rotatably connected to the rear wheel carrying members of the rear wheel suspension mechanism; a caliper arm pivotally connected to one of the rear wheel carrying members of the rear wheel suspension mechanism; a brake caliper attached to the caliper arm and selectively engageable to the braking surface; and a pull link having a first end pivotally connected to the caliper arm and a second end pivotally connected to one of the chain stay members of the rear wheel suspension mechanism, wherein the engagement of the brake caliper to the braking surface induces the pivotal movement of the caliper arm which facilitates the transfer of braking force to the rear wheel suspension mechanism and the compression of the shock absorber thereof which absorbs the braking force transferred to the rear wheel suspension mechanism in a manner countering the unweighting thereof normally resulting from the braking of the bicycle.
Claim 3
Dependent Claim
39 words
The braking system of claim 1 wherein the rear wheel suspension mechanism further comprises a shock support attached to and extending between said seat stay members, the first end of the shock absorber being connected to said shock support.
Claim 4
Dependent Claim
57 words
The braking system of claim 1 wherein said shock absorber comprises: an upper retaining plate attached to said upper link; a lower retaining plate attached to said seat stay members; and a springing member firmly seated between said upper and lower retaining plates; the pivotal movement of the caliper arm facilitating the compression of the springing member.
Claim 5
Dependent Claim
16 words
The braking system of claim 3 wherein the springing member is fabricated from an elastomeric material.
Claim 6
Dependent Claim
24 words
The braking system of claim 3 wherein the springing member is compressed between said upper and lower retaining plates to provide a pre-load thereto.
Claim 7
Dependent Claim
43 words
The braking system of claim 1 wherein the rear wheel suspension mechanism further comprises a pull link receiving tab attached to one of said chain stay members, the second end of said pull link being pivotally connected to said pull link receiving tab.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-10 | 2002-11-09 | 2003-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-10 | 2006-11-09 | 2007-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-10 | 2010-11-09 | 2011-05-11 | $7700.00 | Window Closed / Lapsed |