| 摘要 |
<p>A mechanical oil pressure control apparatus for an antilock brake system including a recessed first body (10) having an oil inlet passage (30) communicating with a master cylinder and an oil outlet passage (18) communicating with a wheel cylinder, a hollow second body (20) threadedly coupled to a front end of the first body (10), a cylinder member (11) sealably inserted into a first body (10) to define an oil chamber (16) communicating with the oil inlet and outlet passages, a piston (12) slidably fitted in the cylinder member (16) while being subjected to an oil pressure supplied from the master cylinder and exerted in the oil chamber (16) in such a fashion that it slides axially in the oil chamber (16) between a front position where the oil chamber (16) is allowed to communicate with both the oil inlet and outlet passages and a rear position where the communication of the oil chamber (16) with the oil outlet passage (18) is cut off, a compression coil spring (22) received in the second body (20) and adapted to always urge the piston (12) toward the front position against the oil pressure exerted in the oil chamber (16); and a spring force adjusting bolt (21) threadedly fitted in the second body (20) and adapted to adjust a spring force of the compression coil spring (22). The spring force is adjusted such that the oil pressure at the point of time established when the piston (12) reaches the rear position substantially corresponds to a brake lock point of the antilock brake system.</p> |
