US3264893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gearshift mechanisms for changespeed gears
Assignee: Motors Liquidation Co
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Filing: 1963-08-05
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Granted: 1966-08-09
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Expires: 1983-08-05
Abstract
Abstract 971,394. Change-speed controls. VAUXHALL MOTORS Ltd. Sept. 26, 1963 [Sept. 28, 1962], No. 36872/62. Heading F2D. A change-speed lever 18, ball-mounted for movement in two planes at right angles to each other, is formed at its depending end with two unequal length legs 20, 22 which straddle a crank-pin 8 having flanges 10, 12 abutted by convex bearing surfaces 24 at the sides of the legs, the crank-pin &c. being mounted by an eccentric stud in an arm 6 fast upon the end of a selector rod 2. Pivoting the change-speed lever 18 anti-clockwise of Fig. 2 brings the end of the longer leg 20 up against the selector rod 2, and thus prevents the inadvertent establishment of reverse. To select reverse, the change-speed lever 18 is pulled upwards against spring bias and the pivoted, when the end of the longer leg 20 clears a flat 5 on the selector rod 2, the corresponding turning of the selector rod actuating a striker fork. The crank-pin 8 is secured to the arm 6 by a nut 13, which is loosened to permit rotation of the pin and its eccentric stud for adjustment. The selector rod 2 may control a change-speed gear having one or several striker rails. Specifications 935,501 and 971,395 are referred to.
Inventors
- 👤 Stott Thomas Charles Felix
- 👤 Maina Mario Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:24
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/04; F16H59/042; F16H61/00; F16H61/18; F16H63/00; F16H63/02; F16H63/08; F16H63/20; F16H2059/048; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/18936; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085; Y10T74/20104; Y10T74/2011
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
324 words
A GEARSHIFT MECHANISM FOR EFFECTING DISPLACEMENT OF COUPLING MEMBERS OF A CHANGE-SPEED GEAR BETWEEN NEUTRAL AND RATIO-ENGAGING POSITION, COMPRISING A GEARBOX CASING, A SELECTOR SHAFT PROJECTING FROM THE GREARBOX CASING, A GEARSHIFT LEVER PIVOTALLY MOUNTED REMOTELY FROM THE GEARBOX CASING, A PIVOTAL CONNECTION BETWEEN THE LOWER END PORTION OF THE GEARSHIFT LEVER AND THE FREE END OF THE SELECTOR SHAFT, A STRIKER DEVICE RAIL MOUNTED WITHIN THE GEARBOX CASING, A PLURALITY OF STRIKER DEVICES SLIDABLE ALONG SAID RAIL TO EFFECT DISPLACEMENT OF SAID COUPLING MEMBERS, A PLURALITY OF STRIKER DEVICE LUGS EXTENDING FROM THE RESPECTIVE STRIKER DEVICE, AN AXIALLY EXTENDING KEY-LIKE PROJECTION ON SAID SELECTOR SHAFT DEFINING A RECESS INTERMEDIATE THE ENDS OF THE PROJECTION, THE LUGS OF THE STRIKER DEVICES BEING SPACED AROUND THE SELECTOR SHAFT AND BEING DISPOSED, WHEN THE MECHANISM IS IN A NEUTRAL POSITION, IN A COMMON RAIDAL PLANE WITH THE RECESS SUCH THAT MOVEMENT OF THE GEARSHAFT LEVER TO EFFECT ROTARY MOVEMENT OF THE SELECTOR SHAFT CAUSES ANY SELECTED LUG TO LIE WITHIN THE RECESS AND SUBSEQUENT MOVEMENT OF THE GEARSHIFT LEVER TO EFFECT AXIAL MOVEMENT OF THE SELECTOR SHAFT CAUSES THE KEY-LIKE PROJECTION TO ENGAGE THE SELECTED LUG AND THEREBY EFFECT SLIDING MOVEMENT OF THE SELECTED STRIKER DEVICE, THE MECHANISM ALSO COMPRISING AN INTERLOCK SLEEVE WHICH IS MOUNTED ON THE SELECTOR SHAFT FOR ROTATION WITH THE SHAFT, AND DETENT MEANS FOR PREVENTING THE INTERLOCK SLEEVE FROM MOVING AXIALLY RELATIVELY TO THE GEARBOX CASING, THE INTERLOCK SLEEVE DEFINING A CIRCUMFERENTIAL GROOVE WHICH IS ENTERED BY THE STRIKER DEVICE LUGS AND ALSO DEFINING AN AXIAL GROOVE WHICH INTERSECTS THE CIRCUMFERENTIAL GROOVE AND IS ENTERED BY THE AXIALLY EXTENDING KEY-LIKE PROJECTION, SUCH THAT THE SAID ROTARY MOVEMENT OF THE SELECTOR SHAFT CAUSES THE SELECTED STRIKER DEVICE LUG TO ENTER THE AXIAL GROOVE AND THE SAID SUBSEQUENT AXIAL MOVEMENT OF THE SELECTOR SHAFT MOVES SAID LUG ALONG THE AXIAL GROOVE, THE WALLS OF THE CIRCUMFERENTIAL GROOVE PREVENTING MOVEMENT OF THE OTHER LUGS.
Claim 2
Dependent Claim
324 words
A GEARSHIFT MECHANISM FOR EFFECTING DISPLACEMENT OF COUPLING MEMBERS OF A CHANGE-SPEED GEAR BETWEEN NEUTRAL AND RATIO-ENGAGING POSITION, COMPRISING A GEARBOX CASING, A SELECTOR SHAFT PROJECTING FROM THE GREARBOX CASING, A GEARSHIFT LEVER PIVOTALLY MOUNTED REMOTELY FROM THE GEARBOX CASING, A PIVOTAL CONNECTION BETWEEN THE LOWER END PORTION OF THE GEARSHIFT LEVER AND THE FREE END OF THE SELECTOR SHAFT, A STRIKER DEVICE RAIL MOUNTED WITHIN THE GEARBOX CASING, A PLURALITY OF STRIKER DEVICES SLIDABLE ALONG SAID RAIL TO EFFECT DISPLACEMENT OF SAID COUPLING MEMBERS, A PLURALITY OF STRIKER DEVICE LUGS EXTENDING FROM THE RESPECTIVE STRIKER DEVICE, AN AXIALLY EXTENDING KEY-LIKE PROJECTION ON SAID SELECTOR SHAFT DEFINING A RECESS INTERMEDIATE THE ENDS OF THE PROJECTION, THE LUGS OF THE STRIKER DEVICES BEING SPACED AROUND THE SELECTOR SHAFT AND BEING DISPOSED, WHEN THE MECHANISM IS IN A NEUTRAL POSITION, IN A COMMON RAIDAL PLANE WITH THE RECESS SUCH THAT MOVEMENT OF THE GEARSHAFT LEVER TO EFFECT ROTARY MOVEMENT OF THE SELECTOR SHAFT CAUSES ANY SELECTED LUG TO LIE WITHIN THE RECESS AND SUBSEQUENT MOVEMENT OF THE GEARSHIFT LEVER TO EFFECT AXIAL MOVEMENT OF THE SELECTOR SHAFT CAUSES THE KEY-LIKE PROJECTION TO ENGAGE THE SELECTED LUG AND THEREBY EFFECT SLIDING MOVEMENT OF THE SELECTED STRIKER DEVICE, THE MECHANISM ALSO COMPRISING AN INTERLOCK SLEEVE WHICH IS MOUNTED ON THE SELECTOR SHAFT FOR ROTATION WITH THE SHAFT, AND DETENT MEANS FOR PREVENTING THE INTERLOCK SLEEVE FROM MOVING AXIALLY RELATIVELY TO THE GEARBOX CASING, THE INTERLOCK SLEEVE DEFINING A CIRCUMFERENTIAL GROOVE WHICH IS ENTERED BY THE STRIKER DEVICE LUGS AND ALSO DEFINING AN AXIAL GROOVE WHICH INTERSECTS THE CIRCUMFERENTIAL GROOVE AND IS ENTERED BY THE AXIALLY EXTENDING KEY-LIKE PROJECTION, SUCH THAT THE SAID ROTARY MOVEMENT OF THE SELECTOR SHAFT CAUSES THE SELECTED STRIKER DEVICE LUG TO ENTER THE AXIAL GROOVE AND THE SAID SUBSEQUENT AXIAL MOVEMENT OF THE SELECTOR SHAFT MOVES SAID LUG ALONG THE AXIAL GROOVE, THE WALLS OF THE CIRCUMFERENTIAL GROOVE PREVENTING MOVEMENT OF THE OTHER LUGS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |