| 摘要 |
A hydraulic pressure control valve for use in a brake system of a vehicle includes a valve member having a first projection which extends into an annular groove, in which a sealing member is disposed, when the valve member is at a predetermined position. Either the valve member or a cap that is disposed at an inlet port of the valve has a second projection through which the valve member can abut against the cap when the valve member moves toward the cap. The dimensions of the first and second projections are determined so that the distal end of the first projection is positioned so as to prevent the sealing member from coming out of the annular groove even when the valve member abuts against the cap. Thus, the sealing member is surely prevented from coming out of the annular groove when the hydraulic pressure control valve is assembled to the vehicle body, or when it is reassembled after being overhauled.
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