| 摘要 |
PROBLEM TO BE SOLVED: To provide a buffer capable of acquiring a satisfactory damping force property.SOLUTION: A buffer comprises a plurality of annular discs 71A, 72, 71B, 74, 75 and 76 laminated on an inner seat 63 and an outer seat 64. The buffer comprises: an intermediate chamber 125 formed by providing a notch on an inner peripheral side at one part of these annular discs 71A, 72, 71B, 74, 75 and 76; an introduction orifice 123 formed between an opening of a working fluid flow passage 53 and the intermediate chamber 125; a back pressure chamber 129 comprising an opening provided at least at one piece out of the plurality of annular discs 71A, 72, 71B, 74, 75 and 76 except for the ones on both ends; an intermediate passage 127 for communicating the back pressure chamber 129 and the intermediate chamber 125; and a fixed orifice 131 provided on a downstream side of the back pressure chamber 129. In the configuration, a flow passage area of the introduction orifice 123 is smaller than that of the fixed orifice 131. |
