US3715018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch engaging and disengaging devices
Assignee: Ricoh Co Ltd
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Filing: 1970-12-17
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Granted: 1973-02-06
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Expires: 1990-12-17
Abstract
Abstract A clutch includes an axially fixed member and an axially movable member arranged coaxially of each other for interengagement. The rotatable axially movable member has a rib projecting from its circumferential periphery and inclined to the generating line of the periphery. A pin is mounted on the end of a pivoted lever and extends toward the periphery of the axially movable clutch member, and may be moved into engagement therewith to engage a side surface of the rib. When the pin engages the side surface of the rib, the rotatable clutch member is displaced axially to disengage the axially fixed clutch member. The opposite side edge of the rib preferably is bevelled, and spring means may be provided to bias the axially movable clutch member in a direction opposite to the direction of displacement thereof by engagement of the pin with the rib.
Inventors
- 👤 T Kadowaki
- 👤 M Kurasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:48
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/02; F16D11/04; G; G03; G03B; G03B19/00; G03B19/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
155 words
A clutch mechanism comprising, in combination, a first axially fixed rotatable clutch member and a second axially movable rotatable clutch member arranged coaxially of each other with interengageable clutch surfaces in facing relation; a rib projecting radially from the circumferential periphery of said second clutch member and inclined, circumferentially of said periphery, with respect to the generating line of said periphery; said rib having a first side surface facing toward said first clutch member and an opposite side surface facing away from said first clutch member; and a clutch operator including a pin adjacent and projecting toward said periphery, said pin, when moved toward said periphery, engaging said first side surface of said rib, during rotation of said second clutch member, to shift said second clutch member axially relative to said first clutch member; said opposite side surface of said rib being bevelled to facilitate said pin riding there-over to engage said first side surface.
Claim 2
Dependent Claim
155 words
A clutch mechanism comprising, in combination, a first axially fixed rotatable clutch member and a second axially movable rotatable clutch member arranged coaxially of each other with interengageable clutch surfaces in facing relation; a rib projecting radially from the circumferential periphery of said second clutch member and inclined, circumferentially of said periphery, with respect to the generating line of said periphery; said rib having a first side surface facing toward said first clutch member and an opposite side surface facing away from said first clutch member; and a clutch operator including a pin adjacent and projecting toward said periphery, said pin, when moved toward said periphery, engaging said first side surface of said rib, during rotation of said second clutch member, to shift said second clutch member axially relative to said first clutch member; said opposite side surface of said rib being bevelled to facilitate said pin riding there-over to engage said first side surface.
Claim 3
Dependent Claim
155 words
A clutch mechanism comprising, in combination, a first axially fixed rotatable clutch member and a second axially movable rotatable clutch member arranged coaxially of each other with interengageable clutch surfaces in facing relation; a rib projecting radially from the circumferential periphery of said second clutch member and inclined, circumferentially of said periphery, with respect to the generating line of said periphery; said rib having a first side surface facing toward said first clutch member and an opposite side surface facing away from said first clutch member; and a clutch operator including a pin adjacent and projecting toward said periphery, said pin, when moved toward said periphery, engaging said first side surface of said rib, during rotation of said second clutch member, to shift said second clutch member axially relative to said first clutch member; said opposite side surface of said rib being bevelled to facilitate said pin riding there-over to engage said first side surface.
Claim 4
Dependent Claim
155 words
A clutch mechanism comprising, in combination, a first axially fixed rotatable clutch member and a second axially movable rotatable clutch member arranged coaxially of each other with interengageable clutch surfaces in facing relation; a rib projecting radially from the circumferential periphery of said second clutch member and inclined, circumferentially of said periphery, with respect to the generating line of said periphery; said rib having a first side surface facing toward said first clutch member and an opposite side surface facing away from said first clutch member; and a clutch operator including a pin adjacent and projecting toward said periphery, said pin, when moved toward said periphery, engaging said first side surface of said rib, during rotation of said second clutch member, to shift said second clutch member axially relative to said first clutch member; said opposite side surface of said rib being bevelled to facilitate said pin riding there-over to engage said first side surface.
Claim 5
Dependent Claim
37 words
A clutch mechanism, as claimed in claim 1, in which said rib has a circumferential extent less than that of said periphery and terminates, at each end, at a respective side surface of said second clutch member.
Claim 6
Dependent Claim
44 words
A clutch mechanism, as claimed in claim 1, including spring means biasing said second clutch member to move axially in a direction opposite to the direction in which it is moved by engagement of said pin with said first side surface of said rib.
Claim 7
Dependent Claim
25 words
A clutch mechanism, as claimed in claim 3, in which said spring means biases said second clutch member into engagement with said first clutch member.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |