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US4529056A Expired / Lapsed US ⏱️ 0.0 years remaining

Mechanism for the spring-cushioning of a vehicle wheel

Assignee: CESKE ZAODY MOTOCYKLOVE NARODNI
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Filing: 1983-09-26
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Granted: 1985-07-16
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Expires: 2003-09-26
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Abstract

Abstract Spring-cushioning mechanism for a wheel of a vehicle having a frame, said wheel being mounted on an arm which is swingingly mounted on the frame of the vehicle. A lever is mounted adjacent one end thereof to the frame of the vehicle: a rigid strut extends between an intermediate portion of the arm and and the other end of the lever and is pivotally connected at the respective ends thereof to the arm and lever. A springing and damping member is pivoted at one end thereof to a portion of the arm between the pivotal mounting of the arm on the frame and the pivotal connection to the arm of the strut. The mechanism includes a toggle composed of first and second links pivotally connected together at the first ends of the links, the first ends of the links being also pivotally connected to the other end of the springing and damping member. A pivot connects the second end of the first link to the vehicle frame, and a pivot connects the second end of the second link to a portion of the lever intermediate the length thereof. The toggle imposes a variable torque on the lever, and thus a variable thrust upon the rigid strut.

Inventors

  • 👤 Oldrich Kreuz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 05:04
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/28; B62K25/286; B62K25/283

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 199 words
A spring-cushioning mechanism for a wheel of a vehicle having a frame, said wheel being mounted on an arm which is swingingly mounted on the frame of the vehicle, said mechanism comprising a lever pivotally mounted adjacent a first end thereof on the frame of the vehicle, a rigid strut extending between an intermediate portion of the arm and a second end of the lever, the strut being pivotally connected at the respective ends thereof to the arm and the lever, a springing and damping member having first and second ends pivoted at the first end thereof to a portion of the arm between the pivotal mounting of the arm on the frame and the pivotal connection between the arm and the strut, and a toggle means composed of first and second links pivotally connected together at the respective first ends of the links, the first ends of the links being also pivotally connected to the second end of the springing and damping member, pivot means connecting the second end of the first link to the vehicle frame, and pivot means connecting the second end of the second link to a portion of the lever intermediate the length thereof.
Claim 2
Dependent Claim 199 words
A spring-cushioning mechanism for a wheel of a vehicle having a frame, said wheel being mounted on an arm which is swingingly mounted on the frame of the vehicle, said mechanism comprising a lever pivotally mounted adjacent a first end thereof on the frame of the vehicle, a rigid strut extending between an intermediate portion of the arm and a second end of the lever, the strut being pivotally connected at the respective ends thereof to the arm and the lever, a springing and damping member having first and second ends pivoted at the first end thereof to a portion of the arm between the pivotal mounting of the arm on the frame and the pivotal connection between the arm and the strut, and a toggle means composed of first and second links pivotally connected together at the respective first ends of the links, the first ends of the links being also pivotally connected to the second end of the springing and damping member, pivot means connecting the second end of the first link to the vehicle frame, and pivot means connecting the second end of the second link to a portion of the lever intermediate the length thereof.
Claim 3
Dependent Claim 23 words
A mechanism in accordance with claim 1, wherein the springing and damping member is elongated and extends generally parallel to the rigid strut.
Claim 4
Dependent Claim 60 words
A mechanism in accordance with claim 2, wherein the rigid strut and the springing and damping member extend generally vertically, and the first, pivotally connected ends of the first and second links are disposed above the second ends of the first and second links which are pivotally connected respectively to the vehicle frame and said intermediate portion of the lever.
Claim 5
Dependent Claim 27 words
Mechanism in accordance with claim 1, comprising means for adjusting the point of pivotal attachment to the vehicle frame of the second end of the first link.
Claim 6
Dependent Claim 16 words
Mechanism according to claim 4, comprising means for adjusting the length of one of said links.
Claim 7
Dependent Claim 13 words
Mechanism according to claim 5, wherein the first link is adjustable in length.
Claim 8
Dependent Claim 38 words
Mechanism according to claim 1, wherein the vehicle is a motorcycle, the wheel is the rear wheel of the motorcycle, and the arm is a back springing fork on which the rear wheel of the motorcycle is mounted.

References Cited (Backward Citations)

US3977697A Cited
US4322088A Cited
US4408674A Cited
US4457939A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-07-15 1989-01-14 1989-07-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-07-15 1993-01-14 1993-07-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-07-15 1997-01-14 1997-07-16 $7700.00 Window Closed / Lapsed

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