Transmission assembly comprising a main gearbox in series with c

Details Transmission assembly comprising a main gearbox in series with c Transmission assembly comprising a main gearbox in series with c

1976-08-30

1977-11-29

Scott, Samuel

Machine element or mechanism

Gearing

In series plural interchangeably locked nonplanetary units

74470, 74471XY, 74477, 74536, F16H 302, G05G 100, G05G 1300

Patent

active

040600050

ABSTRACT:
The transmission assembly comprises a gearbox in series with countershafting providing two gear ratios.
In order to allow an easy adaptation of the countershafting to a conventional gearbox and allow a change in the gear ratio of the countershafting while the vehicle is in motion, there is provided in the control mechanism of the countershafting a delay device. This device stores energy corresponding to changes in the position of a gear pre-selecting lever associated with the countershafting so long as the change gear lever of the gearbox is in a position in which a gear ratio of the gearbox is engaged. This device restores the energy as soon as the change gear lever is brought to its neutral position and allows the pre-selected gear of the countershafting to be engaged.

REFERENCES:
patent: 2920504 (1960-01-01), Sommer
patent: 3292451 (1966-12-01), Jacklin et al.
patent: 3364793 (1968-01-01), Eastwood
patent: 3939722 (1976-02-01), Stromberg

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