US3930422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission apparatus
Assignee: Fuji Electric Co Ltd
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Filing: 1974-07-24
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Granted: 1976-01-06
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Expires: 1994-07-24
Abstract
Abstract A power transmission apparatus is disclosed in which a power output shaft is connected to both a manual input means and a power input means. Means are provided to automatically disengage the power input upon actuation of the manual input. Alternative embodiments disclose means to prevent rotation of the manual input handle during engagement of the power input means.
Inventors
- 👤 Yoshihiro Morimatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:24
CPC Classifications
F; F16; F16D; F16D15/00; F16H; F16H37/00; F16H2700/00; F16H2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19028
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
205 words
In a power transmission apparatus having both manual and power inputs, means for selecting between the inputs comprising a first worm gear rotatably mounted in an outer housing coupled to a power source; a second worm gear engaging said first worm gear and rotatably mounted about an output shaft, said second worm gear having a plurality of conical intentations therein; a holder slidingly engaging the upper side of said second worm gear and fixedly attached to the output shaft, said holder having at least one cylindrical aperture and a plurality of recesses therein; a disc mounted on said output shaft so as to be rotatably and axially movable with respect thereto, said disc having a plurality of conical indentations and recesses therein; spring means biasing said disc into engagement with said holder; a plurality of balls slidingly retained in each of said apertures in said holder, the sum of the diameter of the balls being greater than the thickness of said holder; a handle rotatably mounted in said outer housing above the disc said handle having projections on its lower portion so as to pass through the recesses in the disc and to be inserted into the recesses in said holder intermediate the sides thereof.
Claim 2
Dependent Claim
205 words
In a power transmission apparatus having both manual and power inputs, means for selecting between the inputs comprising a first worm gear rotatably mounted in an outer housing coupled to a power source; a second worm gear engaging said first worm gear and rotatably mounted about an output shaft, said second worm gear having a plurality of conical intentations therein; a holder slidingly engaging the upper side of said second worm gear and fixedly attached to the output shaft, said holder having at least one cylindrical aperture and a plurality of recesses therein; a disc mounted on said output shaft so as to be rotatably and axially movable with respect thereto, said disc having a plurality of conical indentations and recesses therein; spring means biasing said disc into engagement with said holder; a plurality of balls slidingly retained in each of said apertures in said holder, the sum of the diameter of the balls being greater than the thickness of said holder; a handle rotatably mounted in said outer housing above the disc said handle having projections on its lower portion so as to pass through the recesses in the disc and to be inserted into the recesses in said holder intermediate the sides thereof.
Claim 3
Dependent Claim
20 words
A power transmission apparatus as defined in claim 1 wherein means are provided for detecting axial movement of said disc.
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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |