Patent US3838759A successfully refreshed from Google Patents.
US3838759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jaw clutch for multi-speed gear trains or the like
Assignee: Voith Getriebe KG
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Filing: 1973-02-01
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Granted: 1974-10-01
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Expires: 1993-02-01
Abstract
Abstract A jaw clutch wherein a shaft has two sets of external teeth and is movable axially between a first position in which the clutch is disengaged and at least one second position in which the shaft connects a torque-supplying element with a torque-receiving element. The shaft is movable in axial passages of the torquesupplying and torque-receiving elements and is in permanent mesh with one of these elements. The two elements have sets of internal teeth which mate with the corresponding teeth of the shaft in engaged condition of the clutch. The teeth of at least one set of each pair of mating sets of teeth are relatively short so that both ends of the shaft are free to swivel within certain limits. The mechanism for shifting the shaft axially employs a lever or a cylinder which is connected with the shaft by a coupling member one end of which is articulately connected to the shaft by a self-aligning bearing and the other end of which is articulately connected with the lever or cylinder by a spherical joint or by an elastic ring seal. When the clutch is disengaged, one end of the shaft is centered in one of the clutch elements or by the coupling member which is then provided with an external cylindrical surface extending into an internal cylindrical surface of the housing for the clutch.
Inventors
- 👤 H Schmoelz
- 👤 K Dahler
- 👤 E Polzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:23
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/14; F16D25/00; F16D25/08; F16D25/082; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451; Y10T74/1946
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
190 words
A jaw clutch, particularly for use in multispeed gear trains, comprising a first rotary clutch element a second rotary clutch element at least approximately coaxial with said first clutch element; a third rotary clutch element movable substantially axially of said first and second elements between a first position and at least one second position, said first and third elements respectively having first and second sets of permanently meshing teeth, said second and third elements respectively having third and fourth sets of teeth meshing in said one second position of said third element, at least one of said first and second sets and at least one of said third and fourth sets oF teeth being relatively short, as considered in the axial direction of said elements, to permit free angular adjustment of said third element relative to said first and second elements; displacing means actuatable to move said third element beween said positions; a reciprocable coupling member interposed between said displacing means and said third element; a first joint articulately connecting said coupling member with said third element; and a second joint articulately connecting said coupling member with said displacing means.
Claim 2
Dependent Claim
190 words
A jaw clutch, particularly for use in multispeed gear trains, comprising a first rotary clutch element a second rotary clutch element at least approximately coaxial with said first clutch element; a third rotary clutch element movable substantially axially of said first and second elements between a first position and at least one second position, said first and third elements respectively having first and second sets of permanently meshing teeth, said second and third elements respectively having third and fourth sets of teeth meshing in said one second position of said third element, at least one of said first and second sets and at least one of said third and fourth sets oF teeth being relatively short, as considered in the axial direction of said elements, to permit free angular adjustment of said third element relative to said first and second elements; displacing means actuatable to move said third element beween said positions; a reciprocable coupling member interposed between said displacing means and said third element; a first joint articulately connecting said coupling member with said third element; and a second joint articulately connecting said coupling member with said displacing means.
Claim 3
Dependent Claim
16 words
A clutch as defined in claim 1, wherein one of said joints is a self-aligning bearing.
Claim 4
Dependent Claim
50 words
A clutch as defined in claim 1, further comprising a housing, said first and second clutch elements being rotatable in said housing at a fixed distance from each other, at least one of said first and second clutch elements being provided with an axial passage for said third clutch element.
Claim 5
Dependent Claim
63 words
A clutch as defined in claim 1, further comprising means for centering said third clutch element in said first position thereof, said means for centering being nearer to said third than to said first set of teeth so as to compensate for the centering action of said third and fourth sets of teeth in said one second position of said third clutch element.
Claim 6
Dependent Claim
15 words
A clutch as defined in claim 1, wherein said second joint is an universal joint.
Claim 7
Dependent Claim
47 words
A clutch as defined in claim 1, further comprising a fourth rotary clutch element coaxial with said first and second clutch elements, said third and fourth clutch elements respectively having fifth and sixth sets of teeth which mesh in another second position of said third clutch element.
Claim 8
Dependent Claim
19 words
A clutch as defined in claim 6, wherein said fifth set of teeth constitutes said fourth set of teeth.
Claim 9
Dependent Claim
57 words
A clutch as defined in claim 6, further comprising a housing said first, second and fourth clutch elements being rotatable in said housing at fixed distances from each other and said third clutch element being movable axially from said first position in first and second directions to respectively assume said one and said other second position thereof.
Claim 10
Dependent Claim
19 words
A clutch as defined in claim 8, wherein said coupling member is substantially coaxial with said third clutch element.
Claim 11
Dependent Claim
42 words
A clutch as defined in claim 9, further comprising means for centering said third clutch element in said first position thereof, said means for centering including a first portion provided on said coupling member and a second portion rigid with said housing.
Claim 12
Dependent Claim
41 words
A clutch as defined in claim 10, wherein one of said portions has an external cylindrical surface and the other of said portions has an internal cylindrical surface receiving said external surface in said first position of said third clutch element.
Claim 13
Dependent Claim
22 words
A clutch as defined in claim 10, wherein said second portion of said means for centering forms part of said displacing means.
Claim 14
Dependent Claim
66 words
A clutch as defined in claim 1, wherein said displacing means comprises a fluid-operated cylinder and said coupling member includes a piston reciprocable with clearance in said cylinder and a piston rod rigid with said piston and connected to said third clutch element by way of said first joint, said second joint including an elastic device interposed between the periphery of said piston and said cylinder.
Claim 15
Dependent Claim
15 words
A clutch as defined in claim 13, wherein said elastic device is a ring-shaped seal.
Claim 16
Dependent Claim
66 words
A clutch as defined in claim 13, wherein said cylinder comprises two spaced-apart end walls and further comprising compressible cushioning means interposed between said piston and at least one of said end walls, said piston being adjacent to said one end wall in one of said positions of said third clutch element whereby said cushioning means is compressed between said piston and said one end wall.
Claim 17
Dependent Claim
38 words
A clutch as defined in claim 15, wherein said cushioning means comprises at least one spring-biased insert movably mounted in said piston and abutting against said one end Wall in said one position of said third clutch element.
Claim 18
Dependent Claim
40 words
A clutch as defined in claim 16, wherein said cushioning means comprises a plurality of equidistant springbiased inserts axially movably mounted in said piston and having portions normally extending beyond said piston toward said one end wall of said cylinder.
Claim 19
Dependent Claim
23 words
A clutch as defined in claim 1, further comprising detent means for yieldably holding said third clutch element in said one second position.
Claim 20
Dependent Claim
37 words
A clutch as defined in claim 18, wherein said coupling member is substantially coaxial with said third clutch element and said detent means comprises a toggle mechanism having a spring-biased link articulately connected with said coupling member.
Claim 21
Dependent Claim
78 words
A clutch as defined in claim 19, wherein said link is pivotable about an axis which is normal to and crosses in space with the axis of said third clutch element, said coupling member having at least one pair of external side faces normal to the axis of said third clutch element and said toggle mechanism having a portion provided with complementary surfaces which slide along said external side faces during axial movement of said third clutch element.
Claim 22
Dependent Claim
43 words
A clutch as defined in claim 20, wherein said portion of said toggle mechanism is a follower articulately connected with said link and slidably extending into external grooves of said coupling member, said external side faces flanking said grooves of said coupling member.
Claim 23
Dependent Claim
28 words
A clutch as defined in claim 21, wherein said follower is pivotable relative to said link about an axis which is parallel to the axis of said link.
Claim 24
Dependent Claim
27 words
A clutch as defined in claim 21, wherein said follower and said coupling member have abutting surfaces located in planes normal to the axis of said link.
Claim 25
Dependent Claim
23 words
A clutch as defined in claim 1, wherein said displacing means comprises a pivotable lever and said second joint is a ball-and-socket joint.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |