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US4524634A Expired / Lapsed US ⏱️ 0.0 years remaining

Transmission shifting mechanism

Assignee: Allis Chalmers Corp
•
Filing: 1983-02-09
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Granted: 1985-06-25
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Expires: 2003-02-09
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Abstract

Abstract A transmission shift mechanism including a shift selector lever mounted on a spherical bearing and a shifting segment mounted on a transverse axis and having a transverse slot receiving said shift selector lever for allowing said lever to pivot transversely for selecting a speed ratio and pivoting fore and aft for shifting said transmission.

Inventors

  • 👤 Robert C. Haupt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 19:25
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/26; F16H61/36; F16H59/00; F16H59/02; F16H59/04; F16H61/24; F16H63/00; F16H63/02; F16H63/08; F16H63/20; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085; Y10T74/2014; Y10T74/20159; Y10T74/20165; Y10T74/20201; Y10T74/20396; Y10T74/20402; Y10T74/2042

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 255 words
A shift mechanism for shifting a vehicle transmission comprising a control console, a shift selector lever mounted on said control console for pivotal movement on a transverse axis and a fore and aft axis, an inverted U-shaped shifting segment having a horizontal portion and a pair of downwardly extending legs with their lower ends pivotally mounted on said console on said transverse axis, means defining a transversely extending slot in said horizontal portion through which said lever extends, said slot permitting relative movement between said selector lever and said shift selector lever about said fore and aft axis and preventing relative movement between said selector lever and said shifting segment about said transverse axis, means defining a vertically elongated slot in one of said legs of said shifting segment, a stabilizer finger rigidly secured to said selector lever and extending horizontally therefrom and through said vertically elongated slot, said slot and said stabilizer finger cooperating to prevent rotation of said lever about a vertical axis, a transmission including a plurality of shifting devices, a shift selector for selectively and alternatively engaging one of said shifting devices, a shift selector mechanism connected between said shift selector lever and said shift selector selectively engaging said shifting devices responsive to pivotal movement of said shift selector lever about said fore and aft axis, and a shifting mechanism connected between said shifting segment and said shift selector for selectively shifting said transmission responsive to pivotal movement of said shift selector lever and said shifting segment about said transverse axis.
Claim 2
Dependent Claim 255 words
A shift mechanism for shifting a vehicle transmission comprising a control console, a shift selector lever mounted on said control console for pivotal movement on a transverse axis and a fore and aft axis, an inverted U-shaped shifting segment having a horizontal portion and a pair of downwardly extending legs with their lower ends pivotally mounted on said console on said transverse axis, means defining a transversely extending slot in said horizontal portion through which said lever extends, said slot permitting relative movement between said selector lever and said shift selector lever about said fore and aft axis and preventing relative movement between said selector lever and said shifting segment about said transverse axis, means defining a vertically elongated slot in one of said legs of said shifting segment, a stabilizer finger rigidly secured to said selector lever and extending horizontally therefrom and through said vertically elongated slot, said slot and said stabilizer finger cooperating to prevent rotation of said lever about a vertical axis, a transmission including a plurality of shifting devices, a shift selector for selectively and alternatively engaging one of said shifting devices, a shift selector mechanism connected between said shift selector lever and said shift selector selectively engaging said shifting devices responsive to pivotal movement of said shift selector lever about said fore and aft axis, and a shifting mechanism connected between said shifting segment and said shift selector for selectively shifting said transmission responsive to pivotal movement of said shift selector lever and said shifting segment about said transverse axis.
Claim 3
Dependent Claim 49 words
A shift mechanism for shifting a vehicle transmission as set forth in claim 1 including, a spring interposed between said selector lever and one of said legs of said shifting segment normally biasing said shift selector lever transversely to a position at one end of said transversely extending slot.
Claim 4
Dependent Claim 23 words
A shift mechanism for shifting a vehicle transmission as set forth in claim 1 including, a spherical bearing supporting said shift selector lever.

References Cited (Backward Citations)

CA638451A Cited
FR946867A Cited
US2951393A Cited
US3413870A Cited
US3786689A Cited
US4143560A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-06-24 1988-12-24 1989-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-06-24 1992-12-24 1993-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-06-24 1996-12-24 1997-06-25 $7700.00 Window Closed / Lapsed

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