Motor vehicles – Transmission mechanism – Gear transmission relationship to frame or axle
Reexamination Certificate
1999-01-25
2001-09-18
Swann, J. J. (Department: 3611)
Motor vehicles
Transmission mechanism
Gear transmission relationship to frame or axle
C180S379000, C180S380000
Reexamination Certificate
active
06290020
ABSTRACT:
The present invention relates to an intermediate shaft for motor vehicle transmission. It applies particularly to front-wheel drive motor vehicles.
In front-wheel drive motor vehicles, the gearbox/differential assembly is generally offset with respect to the longitudinal plane of symmetry of the vehicle.
To make the manufacture of transmissions more rational, it has been proposed to use, on the one hand, two identical transmission parts arranged symmetrically and, on the other hand, an intermediate shaft connecting the corresponding output of the said differential to the furthest transmission part. The intermediate shaft is supported by a bearing itself borne by the motive power unit or alternatively by the structure of the vehicle.
The object of the invention is to provide a low-weight intermediate shaft which is economical to produce and has high stiffness.
To this end, the subject of the invention is an intermediate shaft for motor vehicle transmission, comprising, as a single piece, (a) a female element of a sliding articulated joint, (b) an internal raceway, and (c) a tubular part which extends, from this raceway, in the direction opposite to the said female element.
The intermediate shaft according to the invention may include one or more of the features of claims
2
to
7
.
Another subject of the invention is a transmission device for a motor vehicle, comprising an intermediate shaft as defined hereinabove, according to claim
8
.
Two embodiments of this transmission device are described in claims
9
and
10
, respectively.
A further subject of the invention is a transmission for a motor vehicle, according to claim
11
.
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Declas Frederic
Margerie Michel
Poulin Bernard
Battorff Christopher
GKN Automotive AG
Howard & Howard
Swann J. J.
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