Patent US4265137A successfully refreshed from Google Patents.
US4265137A
Expired / Lapsed
US
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Gear selector mechanism for a vehicle gearbox
Assignee: Volvo AB
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Filing: 1979-03-29
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Granted: 1981-05-05
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Expires: 1999-03-29
Abstract
Abstract A gear selector mechanism for a vehicle gearbox comprises axially displaceable shift rails and rocker forks joined thereto. Upon axial displacement of the shift rails, the rocker forks can swing to displace engaging sleeves in the coupling and synchronizing means of the gearbox. A plurality of rocker forks are journalled in a common fork holder formed by two parallel bars arranged at a distance from each other and oriented in the direction of the gearbox shaft.
Inventors
- 👤 Stig-Erik Johannesson
- 👤 Stanislaw J. Kruk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:01
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/32; F16H2063/325; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19284; Y10T74/20; Y10T74/20012; Y10T74/20018
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
Gear selector mechanism for a vehicle gearbox, comprising axially displaceable shift rails and rocker forks joined to the shift rails, said rocker forks being swingable upon axial displacement of the shift rails to displace engaging sleeves in the coupling and synchronizing means of the gearbox, characterized in that a plurality of rocker forks are journalled in a common fork holder in the form of a pair of substantially parallel bars arranged at a distance from one another and oriented in the direction of the gearbox shaft.
Claim 2
Dependent Claim
86 words
Gear selector mechanism for a vehicle gearbox, comprising axially displaceable shift rails and rocker forks joined to the shift rails, said rocker forks being swingable upon axial displacement of the shift rails to displace engaging sleeves in the coupling and synchronizing means of the gearbox, characterized in that a plurality of rocker forks are journalled in a common fork holder in the form of a pair of substantially parallel bars arranged at a distance from one another and oriented in the direction of the gearbox shaft.
Claim 3
Dependent Claim
37 words
Gear selector mechanism according to claim 1, characterized in that the rocker forks have bearing pins extending from opposite sides, and in that the bars are made with upwardly open, U-shaped grooves for receiving the bearing pins.
Claim 4
Dependent Claim
32 words
Gear selector mechanism according to claim 1 or 2, characterized in that the bars extend through the entire housing of the gearbox and penetrate into openings in the ends of the housing.
Claim 5
Dependent Claim
25 words
Gear selector mechansim according to any one of claims 1 to 3, characterized in that the bars are formed of flat-rolled steel placed on edge.
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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) | 1984-05-04 | 1984-11-03 | 1985-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-04 | 1988-11-03 | 1989-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-04 | 1992-11-03 | 1993-05-05 | $7700.00 | Window Closed / Lapsed |