EP0084242A2
Expired / Lapsed
EP
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Control lever assembly
Assignee: Deere and Co
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Filing: 1982-12-20
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Granted: —
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Expires: 2002-12-20
Abstract
Abstract A lever is integral with a rotatable hub (40). A brake lever (70) pivoted on a pivot (16) is biased by a spring (76) to urge a brake show (74) against part of the hub (40). A detent lever (80) pivoted on the same pivot (16) is biased by a spring (88) to engage a detent roller (84) with a sector of the hub containing detent notches (62, 64). A centering spring biases the lever hub (40) to the illustrated, neutral position. A rotary cam (26) acts on cam followers (72, 82) on the brake lever (70) and detent lever (80) to disengage both brake and detent in the position shown. The cam is rotatable to other positions by a solenoid (90) pawl (92) and ratchet wheel (36), one position allowing the brake to engage (establishing a friction-held mode for the lever) and another position allowing the detent to engage, providing for detent holding of the lever in its spring centred mode.
Inventors
- 👤 Kenneth Dale Baxter
- 👤 Gary Raymond Bluem
- 👤 Dallas Richard Humphrey
- 👤 Carl Edwin Kittle
- 👤 Douglas Jacob Kluge
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 20:24
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/04; G05G5/00; G05G5/12; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
A control lever assembly comprising a housing (12), an operator-movable control lever (22) pivotally mounted in the housing, and friction means (70,74) frictionally coupling the control lever to the housing to cause the lever to hold the position to which it is moved, characterised by resilient means (106) biased to urge the control lever (22) from a displaced position to a neutral position relative to the housing (12), and in that the friction means (70,74) is movably mounted and coupled to actuating means (90, 36, 26, 72) adapted to move the friction means (106) between a first position in which it acts on the control lever (22) and a second position in which it disengages from the control lever which is then subject to the action of the resilient means.
Claim 2
Dependent Claim
130 words
A control lever assembly comprising a housing (12), an operator-movable control lever (22) pivotally mounted in the housing, and friction means (70,74) frictionally coupling the control lever to the housing to cause the lever to hold the position to which it is moved, characterised by resilient means (106) biased to urge the control lever (22) from a displaced position to a neutral position relative to the housing (12), and in that the friction means (70,74) is movably mounted and coupled to actuating means (90, 36, 26, 72) adapted to move the friction means (106) between a first position in which it acts on the control lever (22) and a second position in which it disengages from the control lever which is then subject to the action of the resilient means.
Claim 3
Dependent Claim
27 words
A control lever assembly according to claim l, characterised in that the control lever (22) and the friction means (70,74) are pivotally mounted on spaced pivots (14,16).
Claim 4
Dependent Claim
36 words
A control lever assembly according to claims 1 or 2, characterised in that the actuating means comprise a rotary cam (26), a cam-follower on the friction means (70,74), and an actuator (90,92,36) for rotating the cam.
Claim 5
Dependent Claim
36 words
A control lever assembly according to claim 3, characterised in that the friction means (70, 74) is spring- biased (76) to engage the lever (22) and is selectively lifted from the lever by the cam (26).
Claim 6
Dependent Claim
34 words
A control lever assembly according to claim 3 or 4, characterised in that the actuator comprises a ratchet wheel (36) on the cam (26) and a solenoid-operated pawl (90, 92) for rotating the cam.
Claim 7
Dependent Claim
27 words
A control lever assembly according to claim 3, 4 or 5, characterised in that the cam (26) rotates about the same pivot (14) as the lever (22).
Claim 8
Dependent Claim
103 words
A control lever assembly according to any of claims 3 to 6, characterised by a detent member (80,84) operable to holdr the lever (22) in at least one displaced position against the bias of the resilient means (106), and in that the cam (26) has a first position in which it urges the friction means (70,74) to the said second position thereof, and in which it also moves the detent member (80,84) clear of the lever, a second position in which the friction means (70,74) assume the said first position thereof, and a third position in which the detent member engages the lever.
Claim 9
Dependent Claim
31 words
A control lever assembly according to claim 2 and 7, characterised in that the detent member (80, 84) is also pivoted on the same pivot (16) as the friction means (70,74).
Claim 10
Dependent Claim
27 words
A control lever assembly according to any of claims 1 to 8, characterised by a position transducer (116) in the housing (12) and coupled to the lever.
References Cited (Backward Citations)
No citation records indexed.
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