<p>A base frame (1) is such as to be fixedly provided on a body so that a parking brake device (2) is provided thereon which causes a brake applying portion of a parking brake to apply the brake and release the brake so applied, a base frame main body (1a) is molded into an integral unit, a parking device mounting portion (10A) where the parking brake device (2) is mounted is formed on one side (A) of the base frame main body (1a), and a gearshift device mounting portion (10B) where a gearshift device of a transmission is provided is formed on the other side (B) thereof.</p>
