EP0391604A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Transmission
Assignee: Individual
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Filing: 1990-03-29
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Granted: —
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Expires: 2010-03-29
Abstract
Abstract A transmission having engagement mechanisms which employ an engagement inner (58) having cam surfaces forming the race (62) thereof, an engagement outer having a circular outer race (54) and rollers (64) therebetween. A cage mechanism (66) angularly positions the rollers such that they may be wedged between the cam surfaces and the outer race so as to interlock the engagement inner and outer. Actuator mechanisms are employed which are axially movable to engage and angularly position the cages (66) relative to the engagement inner for controlling the engagement mechanism. A plurality of control systems both electronic and mechanical control the operation of the engagement mechanism so as to require substantially synchronous movement between engaging elements. Alternately, nonsynchronous shifting may be accomplished under power for power or rapid shifting.
Inventors
- 👤 Peter Howard Weismann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 21:19
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/08; F16D41/086; F16D41/088; F16D5/00; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/10; F16H63/00; F16H63/02; F16H63/08; F16H63/16; F16H63/30; F16H2063/3093; F16H61/00; F16H61/04; F16H61/0403; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242; Y10T74/19251; Y10T74/19279
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
214 words
An engagement mechanism comprising a hollow shaft; an engagement outer rotatably mounted about said shaft and including an outer race; an engagement inner about said hollow shaft and angularly fixed relative thereto, said engagement inner including an inner race having a plurality of central depressions with two inclined surfaces extending upwardly and outwardly in opposite directions from each said central depression; wedging elements between said inner race and said outer race; a cage between said inner race and said outer race, said cage retaining said wedging elements and being angularly movable relative to said inclined surfaces to selectively couple said engagement outer and said engagement inner through said wedging elements with either of said two inclined surfaces, said cage having a first actuator portion; an actuator extending from inwardly of said hollow shaft to adjacent said cage and being angularly fixed relative to said engagement inner, said actuator being slidable along said hollow shaft and including a second actuator portion selectively engaging said first actuator portion to angularly displace said cage relative to said inclined surfaces for alignment of said wedging elements with said central depressions and selectively disengaging said first actuator portion to allow movement of said cage for movement of said wedging elements along said inclined surfaces to engage said outer race.
Claim 2
Dependent Claim
214 words
An engagement mechanism comprising a hollow shaft; an engagement outer rotatably mounted about said shaft and including an outer race; an engagement inner about said hollow shaft and angularly fixed relative thereto, said engagement inner including an inner race having a plurality of central depressions with two inclined surfaces extending upwardly and outwardly in opposite directions from each said central depression; wedging elements between said inner race and said outer race; a cage between said inner race and said outer race, said cage retaining said wedging elements and being angularly movable relative to said inclined surfaces to selectively couple said engagement outer and said engagement inner through said wedging elements with either of said two inclined surfaces, said cage having a first actuator portion; an actuator extending from inwardly of said hollow shaft to adjacent said cage and being angularly fixed relative to said engagement inner, said actuator being slidable along said hollow shaft and including a second actuator portion selectively engaging said first actuator portion to angularly displace said cage relative to said inclined surfaces for alignment of said wedging elements with said central depressions and selectively disengaging said first actuator portion to allow movement of said cage for movement of said wedging elements along said inclined surfaces to engage said outer race.
Claim 3
Dependent Claim
56 words
The engagement mechanism of claim 1 wherein said second actuator portion includes a pin slidable along its length to selectively engage said first actuator portion and said second actuator portion to angularly displace said cage relative to said cam surfaces, and a shift member coupled with said actuator to selectively extend said pin to said cage.
Claim 4
Dependent Claim
29 words
The engagement mechanism of claim 2 wherein said pin extends from inwardly of said hollow shaft to adjacent said cage and is angularly fixed relative to said engagement inner.
Claim 5
Dependent Claim
38 words
The engagement mechanism of claims 2 or 3 wherein said first actuator portion is a hole extending radially in said cage and said second actuator portion is a head on said pin sized to fit within said hole.
Claim 6
Dependent Claim
27 words
The engagement mechanism of claim 4 wherein said hole and said head have a tapered fit to align said hole and said pin by mutual engagement thereof.
Claim 7
Dependent Claim
56 words
The engagement mechanism of claim 2 wherein said shift member is slidably positioned in said hollow shaft and has a cam, said pin has a cam follower engaging said cam, said cam including a first position with said pin engaging said cage and a second position with said pin being out of engagement with said cage.
Claim 8
Dependent Claim
60 words
The engagement mechanism of claim 1 further comprising a control member positioned about said second actuator portion and being in sliding engagement with said engagement outer, said second actuator portion having an engagement shoulder facing away from said first actuator portion, said control member having a locking shoulder adjacent said pin to face and selectively interlock with said engagement shoulder.
Claim 9
Dependent Claim
51 words
A process for power shifting comprising the steps of initiating a shift sequence; sensing an engine condition indicative of generated power; initiating engine power interrupt; disengaging a clutch; moving a gear selector to shift gears; terminating power interrupt; reengaging the clutch at a programmed rate responsive to the sensed engine condition.
Claim 10
Dependent Claim
51 words
A process for power shifting comprising the steps of initiating a shift sequence; sensing an engine condition indicative of generated power; initiating engine power interrupt; disengaging a clutch; moving a gear selector to shift gears; terminating power interrupt; reengaging the clutch at a programmed rate responsive to the sensed engine condition.
Claim 11
Dependent Claim
24 words
The process of claim 8 wherein said step of reengaging the clutch is more rapidly performed at sensed engine conditions of high generated power.
Claim 12
Dependent Claim
86 words
A drive train comprising a hydraulically actuated clutch; a transmission coupled to said clutch, said transmission including constant mesh gearing and a roller clutch to control engagement of said gearing; a sensor for sensing an engine condition indicative of generated power; a switch for interrupting engine power; a variable flow rate, electrically actuated hydraulic valve coupled to said hydraulically actuated clutch; a solenoid coupled to said roller clutch; a central processing unit coupled with said sensor, said switch, said electrically actuated hydraulic valve and said solenoid.
Claim 13
Dependent Claim
86 words
A drive train comprising a hydraulically actuated clutch; a transmission coupled to said clutch, said transmission including constant mesh gearing and a roller clutch to control engagement of said gearing; a sensor for sensing an engine condition indicative of generated power; a switch for interrupting engine power; a variable flow rate, electrically actuated hydraulic valve coupled to said hydraulically actuated clutch; a solenoid coupled to said roller clutch; a central processing unit coupled with said sensor, said switch, said electrically actuated hydraulic valve and said solenoid.
Claim 14
Dependent Claim
32 words
The drive train of claim 10 wherein said central processing unit is programmed to actuate said switch to interrupt engine power upon command and, at actuation of said switch, actuate said solenoid.
References Cited (Backward Citations)
No citation records indexed.
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