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发明公开
CN107532673A 阻尼装置 有权

阻尼装置
摘要：
活塞具有：第1止动部(54a)，其以在径向上凸出的方式设置于环状外周部(44a)的第1室(62)侧；第2止动部(48a)，其以在径向上凸出的方式设置于环状外周部(44a)的第2室(64)侧；以及凸出部(55)，其形成为在比环状外周部(44a)在径向上凸出的状态下沿轴向延伸，配置为在周向上与第1止动部(54a)分离。凸出部(55)具有倾斜面，该倾斜面以从第2止动部(48a)侧朝向第1止动部(54a)侧而朝径向外侧伸出的方式倾斜。在密封环部件(24)的未被第1止动部(54a)限制的部分，因与气缸(30)的摩擦，在从第2止动部(48a)离开的方向上变形而跨上倾斜面时，使得第1室(62)和第2室(64)连通。
摘要（英）：

A piston is provided with a first stopper part (54a) provided on a first chamber (62) side of an annular outer peripheral part (44a) so as to protrude in a radial direction, a second stopper part (48a) provided on a second chamber (64) side of the annular outer peripheral part (44a) so as to protrude in the radial direction, and a protrusion (55) formed so as to extend in an axial direction whileprotruding in the radial direction past the annular outer peripheral part (44a), and arranged so as to separate from the first stopper part (54a) in a circumferential direction. The protrusion (55) has an inclined surface that is inclined so as to project radially outward from the second stopper part (48a) side toward the first stopper part (54a) side. A sealing ring member (24) allows the first chamber (62) and the second chamber (64) to be communicated when the portion not restricted by the first stopper part (54a) deforms in a direction away from the second stopper part (48a) due to friction with a cylinder (30).

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