Shift device for automotive automatic transmission

Details Shift device for automotive automatic transmission Shift device for automotive automatic transmission

1991-01-02

1992-10-20

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

745016, 74538, B60K 2000, F16C 112

Patent

active

051560615

ABSTRACT:
A bell crank lever is used to operatively interconnect a transmission control cable with a shift lever. The bell crank lever is pivoted about an axis which is located at essentially the same level but separate from the axis about which the shift lever is pivotal. Connection between the shift lever and the bell crank lever is achieved by means of a pin which projects from one side of a shaft which forms part of a detent mechanism, and an elongate slot formed in one end of the bell crank lever.
The bell crank lever is pivotally mounted on a plate which forms part of the detent mechanism and in which detent recesses are formed. This facilitates the accurate assembly of the device. Further, as the bell crank lever is pivoted at substantially the same height as the pivot shaft of the shift lever and arranged above the bottom wall of the base bracket, a lever effect equal to that of the conventional construction is achieved. Furthermore, since there is no need for an intermediate shaft, reduction in play and cost are also achieved.

REFERENCES:
patent: 3766799 (1973-10-01), DeSloovere
patent: 3998109 (1976-12-01), O'Brien
patent: 4365522 (1982-12-01), Kubota et al.
patent: 4566349 (1986-01-01), Van der Loon et al.
patent: 4649766 (1987-03-01), Kiekhaefer
patent: 4850238 (1989-07-01), Inoue

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