US3592284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorbicycle
Assignee: APPARILS DE CONTROLE ET D EQUI
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Filing: 1969-09-02
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Granted: 1971-07-13
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Expires: 1989-09-02
Abstract
Abstract The rear-driving wheel of the motorbicycle is connected to the engine by a substantially horizontal transmission shaft. The engine is mounted in the frame by two transverse half-pivots whose axis passes substantially through the engine center of gravity. The engine is prevented from rotating around the halfpivots only by means of the transmission shaft. This transmission shaft extends freely between the engine output shaft and an input shaft providing a connection to the rear wheel, and is held in alignment with the engine output shaft and with the input shaft.
Inventors
- 👤 Bernard Rene Mennesson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:20
CPC Classifications
B; B62; B62M; B62M7/00; B62M7/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
A motor bicycle having an engine and a rear driving wheel mounted in a frame, and a substantially horizontal transmission shaft interconnecting the engine and the rear driving wheel, wherein the engine is mounted in the frame by means constituting a transverse horizontal pivot passing substantially Through the engine center of gravity, the engine being prevented from rotating around the pivot only by said transmission shaft, said transmission shaft extending freely between an output shaft of the engine and an input shaft providing a connection to the rear wheel and being held in alignment with the engine output shaft and with said input shaft.
Claim 2
Dependent Claim
104 words
A motor bicycle having an engine and a rear driving wheel mounted in a frame, and a substantially horizontal transmission shaft interconnecting the engine and the rear driving wheel, wherein the engine is mounted in the frame by means constituting a transverse horizontal pivot passing substantially Through the engine center of gravity, the engine being prevented from rotating around the pivot only by said transmission shaft, said transmission shaft extending freely between an output shaft of the engine and an input shaft providing a connection to the rear wheel and being held in alignment with the engine output shaft and with said input shaft.
Claim 3
Dependent Claim
78 words
A motor bicycle as claimed in claim 1, wherein said frame comprises a horizontal bearer having secured to it at the front a leg inclined to the horizontal and formed by a metal box member and bearing a steering socket receiving the front fork, and wherein the engine is housed mostly inside the base of the leg and extends through the front part of the horizontal bearer so that only the lower part of the engine is visible.
Claim 4
Dependent Claim
83 words
A motor bicycle as claimed in claim 1, wherein to connect the transmission shaft to the rear wheel the transmission shaft is connected by a coupling to the input shaft, said input shaft being mounted in a casing through which a rod extends, said rod forming the rear wheel shaft and having the rear wheel hub on it, the rear wheel hub bearing a conical toothed ring meshing with a conical gear wheel rigidly secured to the rear end of the input shaft.
Claim 5
Dependent Claim
44 words
A motor bicycle as claimed in claim 3, wherein the coupling has a control member permanently connected to the transmission shaft and so devised as, when brought to a position corresponding to disengagement of the transmission, to secure the transmission shaft to the frame.
Claim 6
Dependent Claim
121 words
A motor bicycle as claimed in claim 4, wherein the coupling comprises two flanges which are rigidly secured one to the end of the transmission shaft and the other to the end of the input shaft which are disposed facing and slightly separated from one another, the coupling also comprising a ring bearing at least one finger parallel to the transmission shaft, the ring being adapted to slide on the transmission shaft between a transmission-engagement position in which the finger engages simultaneously in two apertures disposed one each in the two flanges and adapted to be aligned with one another, and a transmission-disengagement position in which the finger engages only in the aperture extending through the flange of the transmission shaft.
Claim 7
Dependent Claim
30 words
A motor bicycle as claimed in claim 5, wherein the aperture in the flange rigidly secured to the input shaft is pierced in a rubber block secured in the flange.
Claim 8
Dependent Claim
59 words
A motor bicycle is claimed in claim 5, wherein the control member takes the form of a sleeve having an enlargement whose front surface can abut the rear surface of said slideable ring and which is internally of a cylindrical shape of other than circular profile and adapted to the outer profile of the flange of the transmission shaft.
Claim 9
Dependent Claim
28 words
A motor bicycle as claimed in claim 5, wherein a spring is interposed between the transmission shaft and the slideable ring and tends to bias said ring rearwardly.
Claim 10
Dependent Claim
36 words
A motor bicycle as claimed in claim 7, wherein the control sleeve is extended forwardly beyond the slideable ring by a skirt and wherein the frame bears a connecting projection adapted to cooperate with the skirt.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |