| 摘要 |
<p>PURPOSE:To prevent the occurrence of interference lying between a spring chamber part and other constituent parts, by setting up the spring chamber part and a push rod of the chamber part in parallel and on a straight line along an axle in relation to a wheel cylinder part. CONSTITUTION:A wheel cylinder 21 is solidly formed with a wedge cylinder 22 in almost parallel with an axle. A third piston 34 is slidably inserted into a hollow chamber 22c of the wedge cylinder 22. A first push rod 14 pivoted on a setting shaft 12 of a first piston 6 in a spring chamber part 2 is made to come into contact with the piston 34. And, those of wedge cylinder 22, push rod 14 and spring chamber part 2 are all set up on a straight line.</p> |
