Hydraulic shock absorber and saddle-type vehicle

A hydraulic shock absorber, comprising:

• a vehicle body side tube;
• an axle side tube which moves with respect to the vehicle body side tube;
• a hollow rod which is accommodated in the vehicle body side tube and includes a first flow path in which oil flows in an axial direction inside;
• a damping force adjusting unit which adjusts a damping force by adjusting a flow resistance of the oil;
• a hollow tip member having an inner diameter smaller than that of the first flow path and including a second flow path connected to the first flow path, said hollow tip member being provided in a lower end opening of the first flow path;
• an enclosure member which is arranged to surround at least a lower end of the rod, wherein
• the enclosure member has an oil chamber for applying a centrifugal force to the oil, said oil chamber communicating with the first flow path and the second flow path inside the enclosure member,
• the enclosure member includes an inflow path which guides oil from outside of the enclosure member to inside thereof,
• the inflow path is arranged so that an axis of the inflow path deviates from an axis of the rod and a flow of oil flowing from the inflow path into the oil chamber is eccentric from the center of the oil chamber,
• the inflow path extends so that the axis of the inflow path is perpendicular to the axis of the rod, and
• the oil chamber has a cylindrical or conical inner wall surface and contains an arc in a cross section when cut in a plane perpendicular to the axis of the rod.