| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydraulic vibration damper that minimizes a pressure spring, miniaturizes an oil reservoir, makes itself easy to use, and prevents oil from leaking. <P>SOLUTION: A pair of support blocks 7 and 8 are oppositely fixed on both end side parts of a cylinder 2 of a hydraulic vibration damper 1 to support an oiling pipe 9 and oil reservoirs 10 between the support blocks 7 and 8. A pair of oil reservoirs 10 are provided parallel to the cylinder 2 to communicate to the oiling pipe 9 that communicates between hydraulic pressure rooms 5 and 6 of the cylinder 2, absorbs the fluctuation difference of the amount of oil moving in and out of the hydraulic pressure rooms of the cylinder 2 in accordance with the relative motions of the cylinder 2 and the piston rod 3, and reciprocably stores hydraulic oil to adjust overs and shorts of the hydraulic oil. A movable pressure lid 11, which pressurizes the hydraulic oil filled in a reservoir room 10c by a spring 13, is provided each inside of the oil reservoirs 10. The pressure lids 11 of the pair of the oil reservoirs 10 share to pressurize the hydraulic pressures of the hydraulic pressure rooms 5 and 6, so the spring 13 of small size can be employed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
