Patent US3581594A successfully refreshed from Google Patents.
US3581594A
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Shift rail stop
Assignee: Deutz Allis Corp
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Filing: 1969-12-22
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Granted: 1971-06-01
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Expires: 1989-12-22
Abstract
Abstract A detent mechanism on a shift rail to define shift positions of the rail and stops to prevent overshifting of the shift rail.
Inventors
- 👤 Donald W Longshore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:10
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/38; F16H63/08; F16H63/20; F16H63/34; F16H63/36; F16H2063/3086; F16H61/00; F16H61/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085; Y10T74/20104; Y10T74/20116
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
In a vehicle transmission a shift mechanism comprising a housing means, at least one shift rail mounted for axial movement relative to said housing and adapted for operating a shifting means in said transmission, a detent means fixed relative to said housing including a resiliently biased detent element, a stop element engaging said detent element and limiting the return movement of said resiliently biased detent element, means defining at least one detent groove in said shift rail for receiving said resiliently biased detent element, means defining a recess having shoulders axially extending beyond the axial limits of said detent groove in said shift rail, said shoulders defining the limits of axial movement of said shift rail when engaging said detent element and producing a return movement of said detent element thereby providing a detent means defining at least one detent position of said shift rail and stop limits for maximum movement of said shift rail.
Claim 2
Dependent Claim
155 words
In a vehicle transmission a shift mechanism comprising a housing means, at least one shift rail mounted for axial movement relative to said housing and adapted for operating a shifting means in said transmission, a detent means fixed relative to said housing including a resiliently biased detent element, a stop element engaging said detent element and limiting the return movement of said resiliently biased detent element, means defining at least one detent groove in said shift rail for receiving said resiliently biased detent element, means defining a recess having shoulders axially extending beyond the axial limits of said detent groove in said shift rail, said shoulders defining the limits of axial movement of said shift rail when engaging said detent element and producing a return movement of said detent element thereby providing a detent means defining at least one detent position of said shift rail and stop limits for maximum movement of said shift rail.
Claim 3
Dependent Claim
71 words
In a vehicle transmission, a shift mechanism as set forth in claim 1, wherein said housing means defines an opening, said stop element and said detent element received in said opening defining an axial length greater than the depth of said opening and preventing said element from withdrawing from said recess, said shoulders thereby defining the limits of axial movements of said shift rail when said detent element engages said shoulder.
Claim 4
Dependent Claim
61 words
In a vehicle transmission a shift mechanism as set forth in claim 2 comprising, a detent means including a pin of predetermined length defining said stop element for engaging said housing and said detent element to limit the return movement of said detent element and axial movement of said shift rail when said detent element engages the shoulders of said recess.
Claim 5
Dependent Claim
42 words
In a vehicle transmission a shift mechanism as set forth in claim 1 comprising, said detent means including a detent element mounted in an opening of said housing, a spring biasing said detent element to an engaging position with said shift rail.
Claim 6
Dependent Claim
46 words
In a vehicle transmission a shift mechanism as set forth in claim 1 wherein said shift rail defines three detent grooves to selectively position said shift rail in a neutral and two gearshift positions when said detent element is selectively received in one of said grooves.
Claim 7
Dependent Claim
62 words
In a vehicle transmission a shift mechanism as set forth in claim 1 wherein said shift mechanism includes an interlock means comprising pins selectively engaging said shift rails, said shift rails defining grooves to selectively receive pins intermediate said shift rails to thereby permit axial movement of one of said shift rails while retaining the remaining shift rails in predetermined neutral position.
Claim 8
Dependent Claim
35 words
In a vehicle transmission a shift mechanism as set forth in claim 1 wherein said transmission includes a plurality of shift rails, a detent means for controlling the movement of each of said shift rails.
Claim 9
Dependent Claim
69 words
In a vehicle transmission a shift mechanism as set forth in claim 1 said detent means comprising, means defining a cylindrical opening in said housing, a coil spriNg received in said cylindrical opening, a ball detent element engaging said coil spring and said shift rail for selective reception within a detent groove of said shift rail to define at least one position of axial movement of said shift rail.
Claim 10
Dependent Claim
60 words
In a vehicle transmission a shift mechanism as set forth in claim 1 including a plurality of shift rails, means defining three detent grooves in each of said rails for reception of said detent element to thereby define a neutral and two shift positions of said shift rails when said detent element is received in one of its mating grooves.
Claim 11
Dependent Claim
52 words
In a vehicle transmission a shift mechanism as set forth in claim 1 comprising a control lever pivotally supported in said housing, a plurality of shift rails slidably mounted in said housing, means on said lever for selectively engaging one of said shift rails to thereby provide shifting of said shift rails.
References Cited (Backward Citations)
US3452614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |