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    • 26. 发明专利
    • Master cylinder
    • 主缸
    • JP2005125820A
    • 2005-05-19
    • JP2003360561
    • 2003-10-21
    • Nabtesco Corpナブテスコ株式会社
    • OKUMA HIROSHI
    • B60T11/16B60T11/236F16D25/08F16J15/32
    • B60T11/16B60T11/236F16D25/088F16D2048/0212F16J15/3208F16J15/3228
    • PROBLEM TO BE SOLVED: To provide an inexpensive master cylinder capable of suppressing generation of abnormal sound due to a stick slip phenomenon. SOLUTION: This cylinder has a resin cylinder main body 2 formed with a difference in level part 2c at the boundary of a cylinder hole 2a and a mounting hole 2b, a piston 3 with a hydraulic chamber 14 formed between the piston 3 and an inner peripheral surface of the cylinder hole 2a, a guide sleeve 8 guiding a base end part of the piston 3 and locked on the cylinder main body 2 by a locking means 9, a first annular sealing means 10 which is a double annular sealing member held on an outer peripheral surface at a distal end part of the piston 3 and having a soft inner peripheral ring seal 10a and a hard outer peripheral ring seal 10b, and a second annular sealing member 17 held between the difference in level part 2c and a distal end part 8b of the guide sleeve 8. At least an outer peripheral surface part of the piston 3 in contact with the second annular sealing member 17 is formed by metal. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够抑制由于滑动现象引起的异常声音产生的便宜的主缸。 解决方案:该气缸具有在气缸孔2a和安装孔2b的边界处形成有水平部分2c的差异的树脂筒主体2,活塞3具有形成在活塞3和 缸孔2a的内周面,引导套筒8,其通过锁定装置9引导活塞3的基端部并锁定在缸主体2上,第一环形密封装置10是双环形密封件 保持在活塞3的前端部的外周面上,具有软内周环密封件10a和硬外周密封圈10b,以及保持在水平部2c之间的第二环状密封构件17和 与第二环形密封构件17接触的至少活塞3的外周面部分由金属形成。 版权所有(C)2005,JPO&NCIPI