Automatic speed-change apparatus for a gear transmission

Details Automatic speed-change apparatus for a gear transmission Automatic speed-change apparatus for a gear transmission

1998-07-23

1999-10-26

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

74325, 743375, B60K 4106, F02D 2900

Patent

active

059708115

ABSTRACT:
A speed-change apparatus for satisfactorily performing the automatic gear shifting of the conventional gear transmission by controlling two motors comprises a select mechanisms including a stepping-motor 2, a select shaft provided with a select gear meshing with a motor gear 3 for transferring the rotation, a device for connecting the select shaft with the select-shift rod of the gear transmission, and a select sensor 6 for detecting an angle of rotation of the select shaft; the shift mechanism comprises a shift motor 9, an intermediate shaft 12, an actuator gear 11 meshing with a motor gear 10 for transferring rotation, a long actuator gear 13 provided on the periphery of the intermediate shaft 12, a shift shaft provided with a male screw 15, a cylindrical slider 17 with a female screw 16 meshing with the male screw 15 a shift gear 14 meshing with the long actuator gear 13, a mechanism coupled with the slider 17 for connecting the slider 17 with the select-shift rod, and a stroke sensor 19 for detecting an amount of axial movement of the slider 17.

REFERENCES:
patent: 3434364 (1969-03-01), Keese
patent: 5150629 (1992-09-01), Morris et al.
patent: 5305240 (1994-04-01), Davis et al.
patent: 5590563 (1997-01-01), Kuwahata et al.
patent: 5794381 (1998-08-01), Rizkovsky
patent: 5809836 (1998-09-01), Patzold et al.

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