Change-speed transmission with speed-range selection means for m

Details Change-speed transmission with speed-range selection means for m Change-speed transmission with speed-range selection means for m

1980-09-11

1982-08-17

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74475, G05G 912

Patent

active

043443346

ABSTRACT:
A gear-shift mechanism for a motor vehicle having a change-speed transmission equipped with a speed-range selection device. The mechanism has a multi-speed gear-shift transmission unit and a range-shift transmission unit. The mechanism incorporates a shift control level whose movement can be transferred via a gear-selector passage and via several gear-shift passages to a gear-shaft which is supported in a rotating manner and can be axially moved inside a housing. The shaft loosely supports gear shifting levers which can be engaged on the shaft and locked in position in a non-revolving manner after an axial movement of the gear-shift shaft caused by the respective gear-selecting operations of the shift-control lever. The arrangement being characterized in that for the purpose of establishing a non-revolving engagement of the gear-shift transmission unit's shifter levers (13, 14) on the shifting shaft (27), the latter is provided with two engaging members (28, 29) arranged at an axial distance to each other and alternatively moved into an operating connection with the shifter levers (13, 14). The arrangement further characterized in that the range-shift transmission unit can be operated by a shifting mechanism (40) which is controlled by an axially moveable shift finger (37). The finger (37) is loosely connected to the shifting shaft (27) in the direction of rotation and is in a fixed connection with the shifting shaft (27) in an axial direction.

REFERENCES:
patent: 3513717 (1970-05-01), Lickey et al.
patent: 3975970 (1976-08-01), Elfes et al.

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