US4995490A
Expired / Lapsed
US
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Roller-synchronized one-way clutch assembly
Assignee: NSK Warner KK
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Filing: 1989-09-08
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Granted: 1991-02-26
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Expires: 2009-09-08
Abstract
Abstract A roller-synchronized one-way clutch assembly includes a ring-shaped first retainer element, a ring-shaped second retainer element, a plurality of rollers and at least one spring extending between the first and second retainer elements. In the preferred embodiment, each of the first and second retainer elements is generally U-shaped and different in size and one of the first and second retainer elements is received in a U-shaped channel of the other. The first and second retainer elements are operatively coupled together such that they may move relative to each other in a circumferential direction over a predetermined angle. Alll of the rollers are movably supported by a retainer sub-assembly to provide a complete full phase function.
Inventors
- 👤 Kenichi Kanai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:31
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/064; F16D41/066; F16D41/067
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein said urging means comprises a pair of discrete springs, each spring being disposed between a pair of adjacent ones of said plurality of rollers.
Claim 2
Dependent Claim
153 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein said urging means comprises a pair of discrete springs, each spring being disposed between a pair of adjacent ones of said plurality of rollers.
Claim 3
Dependent Claim
23 words
The assembly of claim 1 wherein at least one of said first and second retainer elements is provided with at least one projection.
Claim 4
Dependent Claim
50 words
The assembly of claim 2 wherein each of said plurality of rollers has a diameter which is larger than a width of said retainer sub-assembly in the radial direction and thus each of said plurality of rollers partly projects beyond each of inner and outer walls of said retainer sub-assembly.
Claim 5
Dependent Claim
23 words
The assembly of claim 2 wherein said projection extends in the radial direction from an inner or outer end of said retainer sub-assembly.
Claim 6
Dependent Claim
43 words
The assembly of claim 1 wherein each of said first and second retainer elements has a generally U-shaped cross section in a radial direction and one of said first and second retainer elements is received in a U-shaped space defined by the other.
Claim 7
Dependent Claim
33 words
The assembly of claim 1 wherein said urging means includes a spring which extends between a first stopper formed in said first retainer element and second stopper formed in said second retainer element
Claim 8
Dependent Claim
57 words
The assembly of claim 1 wherein either one of said first and second retainer elements is formed with at least one slot extending in a circumferential direction with the other being formed with at least one connection pin, whereby said connection pin is received in said slot to thereby operatively couple said first and second retainer elements.
Claim 9
Dependent Claim
35 words
The assembly of claim 7 wherein said connection pin has a head which is larger in size than the width of said slot to thereby prevent said first and second retainer elements from falling apart.
Claim 10
Dependent Claim
150 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction; and wherein each of said first and second retainer elements has a generally U-shaped cross section in a radial direction and one of said first and second retainer elements is received in a U-shaped space defined by the other.
Claim 11
Dependent Claim
150 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction; and wherein each of said first and second retainer elements has a generally U-shaped cross section in a radial direction and one of said first and second retainer elements is received in a U-shaped space defined by the other.
Claim 12
Dependent Claim
194 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction; wherein either one of said first and second retainer elements is formed with at least one slot extending in a circumferential direction with the other being formed with at least one connection pin, whereby said connection pin is received in said slot to thereby operatively couple said first and second retainer elements; and wherein said connection pin has a head which is larger in size that the width of said slot to thereby prevent said first and second retainer elements from falling apart.
Claim 13
Dependent Claim
194 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction; wherein either one of said first and second retainer elements is formed with at least one slot extending in a circumferential direction with the other being formed with at least one connection pin, whereby said connection pin is received in said slot to thereby operatively couple said first and second retainer elements; and wherein said connection pin has a head which is larger in size that the width of said slot to thereby prevent said first and second retainer elements from falling apart.
Claim 14
Dependent Claim
166 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein each of said first and second retainer elements has a generally U-shaped cross section in a radial direction and one of said first and second retainer elements is received in a U-shaped space defined by the other.
Claim 15
Dependent Claim
166 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein each of said first and second retainer elements has a generally U-shaped cross section in a radial direction and one of said first and second retainer elements is received in a U-shaped space defined by the other.
Claim 16
Dependent Claim
180 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein either one of said first and second retainer elements is formed with at least one slot extending in a circumferential direction with the other being formed with at least one connection pin, whereby said connection pin is received in said slot to thereby operatively couple said first and second retainer elements.
Claim 17
Dependent Claim
180 words
A roller-synchronized one-way clutch assembly, comprising: a ring-shaped first retainer element; a ring-shaped second retainer element operatively coupled to said first retainer element to thereby define a retainer sub-assembly such that said second retainer element may move relative to said first retainer element in a circumferential direction over a predetermined range; a plurality of rollers supported by said retainer sub-assembly and arranged spaced apart from one another in a circumferential direction; and urging means having a first end connected to said first retainer element and a second end connected to said second retainer element for normally urging said first and second retainer elements to move in opposite directions in the circumferential direction, said urging means being located substantially in a circumference defined by said plurality of rollers and wherein either one of said first and second retainer elements is formed with at least one slot extending in a circumferential direction with the other being formed with at least one connection pin, whereby said connection pin is received in said slot to thereby operatively couple said first and second retainer elements.
Claim 18
Dependent Claim
35 words
The assembly of claim 12 wherein said connection pin has a head which is larger in size that the width of said slot to thereby prevent said first and second retainer elements from falling apart.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |