| 摘要 |
PURPOSE:To aim at improvements in the simplification and operatability of setting jobs, by installing a load detecting device inclusive of a U-shaped plate spring in a brake lever member, in case of a device that makes a maximum braking state of a parking brake for large-sized automobiles, etc., detectable. CONSTITUTION:A device bearing the above caption rotates a cam 4 of a parking brake 2 via a brake lever member 6 by locking an end part 11a of an outer cable 11 belonging to a cable 10 and pulling an inner cable 12 with an operating lever set in motion. Then a brake shoe 5 is expanded by rotation of the cam 4 to press itself closely to a brake drum 3, thus braking force is secured right. In this case, the end part of the inner cable 12 is coupled with the end part of the said lever member 5 via a sensor 14' serving as a load detecting device. This sensor 14' is constituted of a U-shaped plate spring 20, which converts the tensile force of the cable 12 into displacement, and a detecting switch 21 for detecting said displacement. |
