Patent · US Expired

Transmission apparatus for four-wheel drive motor vehicle

US4170273A · kind A · utility

11Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 23, 1978
Grant dateOct 9, 1979
Priority date
Expiry dateJun 23, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20018
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A transmission apparatus for four-wheel drive motor vehicle comprising a sub-transmission adapted to transmit power of the engine to a main transmission, means for transmitting the output of the main transmission to the front axle and to the rear axle, clutch device provided in the means for transmitting the output of the main transmission for selectively connecting or disconnecting the transmission of the output to either of the front or rear axle, a shift rod shifting the clutch mechanism in the sub-transmission, an actuating rod slidably provided in parallel with the shift rod, a shift lever connected to the actuating rod, and a shift fork slidably mounted on the actuating rod and engaged with the clutch device. There is provided with first engaging mechanism for causing the actuating rod and shift fork to come into fixed engagement relation to each other within a first moving range of the shift lever, and second engaging mechanism provided for causing the actuating rod and shift rod to come into fixed engagement relation to each other within a second moving range of the shift lever adjacent the first moving range, whereby the motor vehicle may be driven at an economical higher …

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.