Indicator switch mechanism for automobile transfer gear units

摘要

A transfer gear unit for use in an automobile comprises a first changeover device for selecting one of a two-wheel drive mode and a four-wheel drive mode at a time, a second changeover device for selecting one of a high-speed gear train, a neutral gear train and a low-speed gear train at a time, a first fork shaft selectively movable into a two-wheel drive position and a four-wheel drive position for actuating the first changeover device, a second fork shaft selectively movable into a high-speed gear position, a neutral gear position and a low-speed gear position for actuating the second changeover device, and a switch mechanism for indicating the four-wheel drive mode. The switch mechanism includes a switch and switch actuator means operable in response to operation of the first and second fork shafts for actuating the switch when the first fork shaft is in the four-wheel drive position and the second fork shaft is in the high-speed gear position or the low-speed gear position.