| 摘要 |
PROBLEM TO BE SOLVED: To increase a suction flow rate by ensuring a space for mounting a valve mechanism in a rod guide.SOLUTION: An inner cylinder 4 as a cylinder is composed of a cylindrical portion 4A extended in the axial direction, an enlarged portion 4B positioned at one end side of the cylindrical portion 4A and enlarged outside in the radial direction, and a taper portion 4C positioned between the enlarged portion 4B and the cylindrical portion 4A, and enlarged into the taper shape from one end side of the cylindrical portion 4A toward the enlarged portion 4B. A cylindrical projecting portion 7A of the rod guide 7 is mounted in a fitted state at an inner peripheral side of the enlarged portion 4B. A valve mounting portion 7B to which a valve mechanism 11 is mounted, is disposed at an inner peripheral side of the cylindrical projecting portion 7A, and a seat surface 7C on which a plate-shaped valve 11A of the valve mechanism 11 is seated or separated, is formed at a depth (bottom portion) side of the valve mounting portion 7B. A plurality of throttle holes 11E generating damping force at an expanding side, are formed on the plate-shaped valve 11A. |
