| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wire tension adjustment device of parking brake capable of adjusting the tension of wire automatically. SOLUTION: A cylinder rod 12 for supporting a tension detecting roller 11 set on the surface of the side of a wire 5 opposite to a cylinder is guided by a cylinder 10a, and a support arm 14 supporting a wire guide rollers 13 at both sides of the tension detection roller 11 and set on the cylinder side surface of the wire 5 are provided on the cylinder 10a. A tension spring 16 for energizing the cylinder rod 12 in a retreating direction, an actuator such as an air cylinder for driving the cylinder rod 12 so that the tension detection roller 11 is moved forward of the wire guide roller 13, and a position sensor 17 for detecting that the cylinder rod 12 retreated by the tension spring 16 pulling the wire 5 of a standard tension is at a standard position are provided. In addition, a wire driving tool for automatically driving a wire support member to adjust the tension of the wire 5 and a control part for actuating an actuator and, when it is in a halt condition, actuating the wire driving tool so that the position sensor 17 detects the standard position are provided.</p> |
