Gear shifting apparatus of a transmission for a four-wheel drive

Details Gear shifting apparatus of a transmission for a four-wheel drive Gear shifting apparatus of a transmission for a four-wheel drive

1982-11-08

1985-10-08

Herrmann, Allan D.

Motor vehicles

Having four wheels driven

With manually operated means for disengaging drive to one or...

74477, 192 363, B60K 2308, B60K 4122, G05G 510

Patent

active

045454574

ABSTRACT:
A gear shifting apparatus of a transmission for a four-wheel drive vehicle comprises a final reduction device for transmitting the output of the transmission to rear wheels, and a clutch for additional transmitting the output of the transmission to front wheels. An extra low speed gear device having a reduction gear ratio higher than that of the first speed gear of the transmission is provided in the transmission. A shifter rod operated by a gearshift lever is provided for engaging the extra low speed gear device, and a shifter rail is provided for engaging the clutch for four-wheel driving. A lock device operatively connected to the shifter rod and to the shifter rail is provided for locking the shifter rod when the shifter rail is shifted to disengage the clutch for preventing the engagement of the extra low speed gear device by the operation of the shifter rod.

REFERENCES:
patent: 2329916 (1943-09-01), Lamb et al.
patent: 3354741 (1967-11-01), Johnston, Jr. et al.
patent: 3529487 (1970-09-01), Dolan
patent: 3627072 (1971-12-01), Smirl
patent: 3988951 (1976-11-01), Mair et al.
patent: 4275608 (1981-06-01), Brancolini
patent: 4466306 (1984-08-01), Katayma

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