| 摘要 |
PURPOSE: To provide a fluid sealing type cylindrical vibration proof device of excellent productivity in which spring ratio in the perpendicular directions to the axis making a line square with each other can be set large while fully ensuring vibration proof effect due to fluid action of enclosed fluid against vibration input in the axial direction. CONSTITUTION: A restraint member made of synthetic resin is provided with a fitting cylinder part 21 fixedly secured on the outer circumferential face of a supporting shaft metal fitting 12, and respective pairs of first and second restraint projecting parts 22, 24 respectively projecting on both sides in the perpendicular direction to the axis from both end parts in the axial direction of the fitting cylinder part 21 and being positioned within respective outside wall parts 50, 52 in the axial direction of first and second annular fluid chambers 78, 80. In addition to this, against the middle part in the axial direction of the fitting cylinder part 21 of the restraint member, a pair of recessed places are formed on both sides in the perpendicular direction to the axis making a line square with the projecting direction of the first and second restraint projection parts 22, 24, and the inner circumferential face of a partition wall part 48 is fixed to the inner faces of the recessed parts. |
