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发明授权
CN104121317B 缓冲器 有权 转让

缓冲器
摘要：
本发明提供一种缓冲器，该缓冲器提高性能及耐久性。在阻尼力产生机构(30a)中，作为弹簧部件(106a)，具有弹簧常数较高的各径向延伸弹簧部(118)和弹簧常数较低的各周向延伸弹簧部(117)，各径向延伸弹簧部与各周向延伸弹簧部形成一体以使各自的作用力在力学上串联地作用。另外，在先导体(49)的另一端侧圆筒状壁部(71)，设有限制各周向延伸弹簧部(117)的行程的环状阶梯部(74)。由此，在阻尼力控制范围内，仅弹簧部件(106a)的各径向延伸弹簧部(117)产生弹性变形，因此能够提高弹簧部件的耐久性，由于仅弹簧部件的各径向延伸弹簧部的作用力作用于先导阀部件，因此能够抑制阻尼力的不稳定，提高性能。
摘要（英）：

A shock absorber including a damping force generation mechanism (30a) includes a spring member (106a) having radially extending spring portions (117) having high spring constants and circumferentially extending spring portions (118) having low spring constants. The radially extending spring portions and the circumferentially extending spring portions are integrally configured so that biasing forces thereof act dynamically linearly. An annular stepped portion limits strokes of the circumferentially extending spring portions and is provided on a cylindrical wall portion of a pilot body. As a result, within a range of damping force control, only the radially extending spring portions of the spring member are elastically deformed, whereby the durability of the spring member is enhanced, and only biasing forces of the radially extending spring portions of the spring member act on a pilot valve member, and thereby variation in a damping force is reduced so that the performance is improved.

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