| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a uniflow type buffer capable of reliably preventing gas inclusion in a reservoir when discharging a liquid to the reservoir from a cylinder. <P>SOLUTION: A cylinder member which is stored in a reservoir R, and is positioned in the radial direction to one of a cylinder 1 or an outer cylinder 4 to form a gas chamber G between the cylinder member and the one of the cylinder 1 or the outer cylinder 4 and, at the same time, to form a part of a discharge path between the cylinder member and the other of the cylinder 1 or the outer cylinder 4 is disposed. The cylinder member includes a fitting part 20a which is fit to the one of the cylinder 1 or the outer cylinder 4, a cylindrical part 20b which forms an annular path forming a part of the discharge path between the cylindrical part and the other of the cylinder 1 or the outer cylinder 4 and a connection part 20c which connects the fitting part 20a to the cylindrical part 20c, wherein a step part 4a is disposed on the outer circumference of the cylinder 1 or on the inner circumference of the outer cylinder 4, and the fitting part 20a is characterized in that the movement to a compression side chamber side is regulated by the step part 4a and the movement to an extension side chamber side is regulated by a head member 9a connected to the extension side chamber side end of the cylinder 1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
