Misoperation preventing device of manual transmission

A misoperation preventing device of a manual transmission for automobile etc., comprising a plurality of forward fork shafts arranged in parallel with each other, each forward fork shaft switching a respective forward shift gear, and a reverse fork shaft switching a reverse shift gear;

• a select lever sequentially selecting one of the forward and reverse fork shafts in cooperation with a select motion of a manual change lever, the select lever being moved between select positions;
• and a casing supporting each of such members, wherein the fork shaft selected by the select lever is activated in cooperation with a shift motion of the manual change lever to switch between forward and reverse gears;
• the misoperation preventing device comprising:
• a reverse restricting member moved in relation to the select lever, the reverse restricting member having a front end that gets closest to a part of an inner surface of the casing when the select lever is located at a reverse select position at which the reverse fork shaft is selected, and is sequentially separated from said part of the inner surface when the select lever is sequentially moved to each of other select positions;
• a restricting pin engaged with said part of the inner surface of the casing so as to be slidable along a tangential direction of a movement track of the front end of the reverse restricting member in the vicinity of the position closest to said part, the restricting pin being elastically biased toward the front end of the reverse restricting member and partially contacting a part of the casing in a free state to be stopped;
• and
• a lockout lever supported by the casing so as to be rotatable around a supporting pin extending parallel to said restricting pin and axially slidable, the lockout lever extending orthogonal to be supporting pin and being biased around the supporting pin by a spring interposed between the lockout lever and the casing;
• wherein, in a state where the select lever is not located at the reverse select position, a front end part of the lockout lever biased by the spring is configured to be inserted between the front end of the reverse restricting member and a front end surface of said restricting pin in a free state at least near said restricting pin;
• and
• the misoperation preventing device further comprising an actuator having an operating rod that can detachably contact with a part of the lockout lever;
• said actuator being actuated at a vehicle speed less than a predetermined vehicle speed to cause the operating rod to contact with the part of the lockout lever and the front end part of the lockout lever to be detached from a position between the front end of the reverse restricting member and the front end surface of said restricting pin in the free state against a biasing force of the spring.