Abstract: A gear change device comprising a shift lever support mechanism arranged in a casing to support a shift lever in a manner so as to slide in the axial direction and to rotate, a select actuator for operating said shift lever in the axial direction which is the direction of selection, and a shift actuator for rotating said shift lever support mechanism in the direction of shift, wherein said shift actuator has an operation lever of which the base portion is mounted on said shift lever support mechanism; a pair of electromagnetic solenoids arranged facing each other with the acting portion of said operation lever interposed therebetween and inclined with respect to the horizontal direction; and a resilient urging means that produces the urging force in the direction same as the direction of operation of the one electromagnetic solenoid which operates upward along the inclination, out of the pair of electromagnetic solenoids.

Abstract: A gear change device comprising a select actuator for actuating a shift lever in the direction of selection and a shift actuator for actuating the shift lever in the direction of shift, and the select actuator has a shift lever support mechanism arranged in a casing to support the shift lever in such a manner as to slide in the axial direction and to rotate, an electromagnetic solenoid for operating the shift lever in the axial direction which is the direction of selection, a select position-limiting mechanism for limiting the operation position of the shift lever according to the thrust produced in response to the amount of electric power fed to the electromagnetic coils of the electromagnetic solenoids, and the shift actuator works to turn the shift lever support mechanism in the direction of shift.

Abstract: An electromagnetic solenoid actuator comprising a cylindrical casing, an electromagnetic coil arranged in the casing, a fixed iron core arranged in the electromagnetic coil, a moving iron core arranged to come in contact with, and separate away from, the fixed iron core, and an operation rod mounted in the moving iron core, wherein provision is made of a position-limiting mechanism for limiting the operation rod to a plurality of operation positions according to a thrust produced by the operation rod in compliance with the amount of electric power fed to the electromagnetic coil.