US3886811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epicyclic change speed hubs
Assignee: Raleigh Industries Ltd
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Filing: 1974-03-11
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Granted: 1975-06-03
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Expires: 1994-03-11
Abstract
Abstract A five speed epicyclic change speed hub has two epicyclic gear trains utilizing a common planet cage and having an axially adjustable gear ring which is adapted selectively to control various uni-directional clutch means connecting the two gear rings with the hub shell between operative and inoperative conditions according to its position axially of the hub and to the combinations of operative and inoperative uni-directional clutch means appropriate to requisite drive transmission paths.
Inventors
- 👤 Anthony William Hillyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:06
CPC Classifications
B; B62; B62M; B62M11/00; B62M11/04; B62M11/14; B62M11/18
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
222 words
An epicyclic change-speed hub comprising a hub axle, a hub shell a plurality of sun gears secured to the said axle, a respective plurality of planet gears for each such sun gear, a respective gear ring for each plurality of planet gears, each plurality of planet gears being in mesh with its respective sun gear and with its respective gear ring, the respective pluralities of planet gears being supported on a common planet cage, respective unidirectional clutch means drivingly connecting each gear ring and the planet cage with the hub shell and an axially adjustable coupling means adapted to receive a drive motion from an input member and selectively cooperable with the planet cage or with one of the gear rings for transmitting a drive motion thereto, one of said gear rings being axially shiftable with respect to the hub and being adapted according to its position in the axial direction of the hub to render inoperative a first unidirectional clutch means connecting said axially adjustable gear ring with the hub shell and also able to render a second unidirectional clutch means associated with said fixed ring inoperative, and coupling means between said common planet cage and said axially adjustable coupling means being adapted automatically to be mutually disengaged, if in a condition of engagement on reverse motion of the coupling means.
Claim 2
Dependent Claim
222 words
An epicyclic change-speed hub comprising a hub axle, a hub shell a plurality of sun gears secured to the said axle, a respective plurality of planet gears for each such sun gear, a respective gear ring for each plurality of planet gears, each plurality of planet gears being in mesh with its respective sun gear and with its respective gear ring, the respective pluralities of planet gears being supported on a common planet cage, respective unidirectional clutch means drivingly connecting each gear ring and the planet cage with the hub shell and an axially adjustable coupling means adapted to receive a drive motion from an input member and selectively cooperable with the planet cage or with one of the gear rings for transmitting a drive motion thereto, one of said gear rings being axially shiftable with respect to the hub and being adapted according to its position in the axial direction of the hub to render inoperative a first unidirectional clutch means connecting said axially adjustable gear ring with the hub shell and also able to render a second unidirectional clutch means associated with said fixed ring inoperative, and coupling means between said common planet cage and said axially adjustable coupling means being adapted automatically to be mutually disengaged, if in a condition of engagement on reverse motion of the coupling means.
Claim 3
Dependent Claim
222 words
An epicyclic change-speed hub comprising a hub axle, a hub shell a plurality of sun gears secured to the said axle, a respective plurality of planet gears for each such sun gear, a respective gear ring for each plurality of planet gears, each plurality of planet gears being in mesh with its respective sun gear and with its respective gear ring, the respective pluralities of planet gears being supported on a common planet cage, respective unidirectional clutch means drivingly connecting each gear ring and the planet cage with the hub shell and an axially adjustable coupling means adapted to receive a drive motion from an input member and selectively cooperable with the planet cage or with one of the gear rings for transmitting a drive motion thereto, one of said gear rings being axially shiftable with respect to the hub and being adapted according to its position in the axial direction of the hub to render inoperative a first unidirectional clutch means connecting said axially adjustable gear ring with the hub shell and also able to render a second unidirectional clutch means associated with said fixed ring inoperative, and coupling means between said common planet cage and said axially adjustable coupling means being adapted automatically to be mutually disengaged, if in a condition of engagement on reverse motion of the coupling means.
Claim 4
Dependent Claim
222 words
An epicyclic change-speed hub comprising a hub axle, a hub shell a plurality of sun gears secured to the said axle, a respective plurality of planet gears for each such sun gear, a respective gear ring for each plurality of planet gears, each plurality of planet gears being in mesh with its respective sun gear and with its respective gear ring, the respective pluralities of planet gears being supported on a common planet cage, respective unidirectional clutch means drivingly connecting each gear ring and the planet cage with the hub shell and an axially adjustable coupling means adapted to receive a drive motion from an input member and selectively cooperable with the planet cage or with one of the gear rings for transmitting a drive motion thereto, one of said gear rings being axially shiftable with respect to the hub and being adapted according to its position in the axial direction of the hub to render inoperative a first unidirectional clutch means connecting said axially adjustable gear ring with the hub shell and also able to render a second unidirectional clutch means associated with said fixed ring inoperative, and coupling means between said common planet cage and said axially adjustable coupling means being adapted automatically to be mutually disengaged, if in a condition of engagement on reverse motion of the coupling means.
Claim 5
Dependent Claim
20 words
An epicyclic change-speed hub as claimed in claim 1 wherein two sun gears and related epicyclic gear trains are provided.
Claim 6
Dependent Claim
25 words
An epicyclic change-speed hub as claimed in claim 2 further including a spring means against the restraint of which the axially shiftable gear ring moves.
Claim 7
Dependent Claim
34 words
An epicyclic change speed hub as claimed in claim 3 wherein the spring means comprises a helical spring disposed and operating between a seating on the shiftable gear ring and a hub end cap.
Claim 8
Dependent Claim
24 words
An epicyclic change-speed hub as claimed in claim 1 including manually actuable means for adjusting the axial position of the axially adjustable coupling means.
Claim 9
Dependent Claim
45 words
An epicyclic change-speed hub as claimed in claim 1 wherein the axially shiftable gear ring extends within an axially fixed gear ring and includes means adapted to render inoperative said second uni-directional clutch means drivingly connecting such axially fixed gear ring with the hub shell.
Claim 10
Dependent Claim
61 words
An epicyclic change speed hub as claimed in claim 6 wherein the means on the axially shiftable gear ring for rendering inoperative the said second unidirectional clutch means comprises a radially outwardly directed enlargement selectively cooperable with an element of said second unidirectional clutch means to trip such element according to the relative axial positions of the axially movable gear ring.
Claim 11
Dependent Claim
33 words
An epicyclic change speed hub as claimed in claim 1 wherein the axially shiftable gear ring has a third unidirectional clutch means connecting the said axially shiftable gear ring with the coupling means.
Claim 12
Dependent Claim
43 words
An epicyclic change speed hub as claimed in claim 8 wherein that uni-directional clutch means between the axially shiftable gear ring and the coupling means includes an actuable part on the coupling means and a cooperable part on the axially movable gear ring.
Claim 13
Dependent Claim
24 words
An epicyclic change speed hub as claimed in claim 9 wherein the actuable part comprises a pawl and the cooperable part comprises a ratchet.
Claim 14
Dependent Claim
31 words
An epicyclic change speed hub as claimed in claim 8 wherein the first aNd third unidirectional clutch means are disposed in a common radial plane of the axially shiftable gear ring.
Claim 15
Dependent Claim
59 words
An epicyclic change speed hub as claimed in claim 8 wherein said first uni-directional clutch means between the axially shiftable gear ring and the hub shell is operable in two axial positions of the said gear ring, there being means adapted to render the said first uni-directional clutch means inoperable at an intermediate axial position of the gear ring.
Claim 16
Dependent Claim
36 words
An epicyclic change speed hub as claimed in claim 12 wherein the said means for rendering said first uni-directional clutch means inoperative comprises a land operable on an actuable element of said first uni-directional clutch means.
Claim 17
Dependent Claim
49 words
An epicyclic change speed hub as claimed in claim 1 wherein the axially shiftable gear ring further includes a drive transmission means selectively cooperable with said first uni-directional clutch means in one axial position to transmit a drive motion to the hub shell through the said uni-directional clutch means.
Claim 18
Dependent Claim
21 words
An epicyclic change speed hub as claimed in claim 1 wherein the uni-directional clutch means each comprise pawl and ratchet mechanisms.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |