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    • 4. 发明授权
    • Damper
    • 阻尼器
    • US08196722B2
    • 2012-06-12
    • US12091958
    • 2006-10-30
    • Masahiro SatouSeiji SawaiYutaka YamazakiKatsuhiro Kondou
    • Masahiro SatouSeiji SawaiYutaka YamazakiKatsuhiro Kondou
    • F16F9/00
    • F16F9/20F16F9/462F16F9/585
    • A damper includes a cylinder tube having a first end connected to one portion of a member of an object for damping, and a fixing rod guide arranged to close a second end of the cylinder tube; a movable rod guide fitted on the first end of the cylinder tube; a main piston rod extending from the piston side, the piston fitted in the cylinder tube and passing through the fixing rod guide; a sub-piston rod extending on the piston side and passing through the movable rod guide; and a spring normally biasing the movable rod guide toward the piston. A damping force generation oil passage is arranged to connect first and second oil chambers in a cylinder tube defined by the piston. The number of parts of a through-rod type damper is reduced to simplify a construction thereof and to make the damper compact.
    • 阻尼器包括:气缸管,其具有连接到用于阻尼的物体的构件的一部分的第一端;以及固定杆引导件,其布置成闭合所述气缸管的第二端; 安装在缸筒的第一端上的可动杆导向件; 从活塞侧延伸的主活塞杆,活塞装配在缸筒中并穿过固定杆导向件; 在活塞侧延伸并穿过可动杆引导件的副活塞杆; 以及通常使活动杆引导件朝向活塞偏压的弹簧。 阻尼力产生油通道布置成将第一和第二油室连接在由活塞限定的气缸套中。 通过减少通孔型阻尼器的部件数量,简化其结构,并且使减震器变得紧凑。
    • 6. 发明授权
    • Hydraulic shock absorber
    • 液压减震器
    • US07540480B2
    • 2009-06-02
    • US12045817
    • 2008-03-11
    • Seiji SawaiYutaka Yamazaki
    • Seiji SawaiYutaka Yamazaki
    • F16F9/06
    • F16F9/435F16F9/061F16F9/20
    • A shock absorber includes a cylinder tube connected to one portion of a shock absorbing body, a main piston rod extending from a piston with its extension end being connected to another portion of the shock absorbing body, a sub piston rod extending from the piston, an oil chamber pressurizing device arranged to pressurize a hydraulic oil, and damping force generators arranged to generate a damping force by allowing the hydraulic oil to flow between first and second oil chambers. A sealed space for containing an extension end of the sub piston rod is provided. Gas having a pressure larger than atmospheric pressure and smaller than a pressure applied on the hydraulic oil by the oil chamber pressurizing device is filled in the sealed space.
    • 减震器包括连接到减震体的一部分的气缸筒,从活塞延伸的主活塞杆,其活塞的延伸端连接到减震体的另一部分,从活塞延伸的副活塞杆, 布置成对液压油加压的油室加压装置,以及布置成通过允许液压油在第一和第二油室之间流动而产生阻尼力的阻尼力发生器。 提供用于容纳副活塞杆的延伸端的密封空间。 具有大于大气压力并且小于通过油室加压装置施加在液压油上的压力的气体被填充在密封空间中。
    • 8. 发明申请
    • SPRING STRUCTURE
    • 弹簧结构
    • US20110233836A1
    • 2011-09-29
    • US13131222
    • 2009-11-25
    • Seiji Sawai
    • Seiji Sawai
    • F16F3/04F16F9/32
    • F16F3/04B60G11/14B60G15/065B60G2202/12B60G2204/124B60G2206/42F16F1/12
    • A spring structure (20) includes a clockwise spring (21) and a counterclockwise spring (22) that are coaxially arranged under a state in which a spring seat (23) is interposed between a lower end portion of the clockwise spring (21) and an upper end portion of the counterclockwise spring (22). An upper end portion of the clockwise spring (21) is supported on an upper spring seat portion (15), and a lower end portion of the counterclockwise spring (22) is supported on a lower spring seat portion (17). The start point of the effective winding positioned at a lower end of the clockwise spring (21) and The start point of the effective winding positioned at an upper end of the counterclockwise spring (22), or the end portion of the element wire positioned at the lower end of the clockwise spring (21) and the end portion of the element wire positioned at the upper end of the counterclockwise spring (22) are shifted from each other by 180±45 degrees in a circumferential direction around an axis of the clockwise spring (21) or the counterclockwise spring (22). The spring seat (23) includes an abutting plate portion (23a) and a tubular portion (23b), and is movable.
    • 弹簧结构(20)包括顺时针弹簧(21)和逆时针方向的弹簧(22),其同时布置在弹簧座(23)插入在顺时针弹簧(21)的下端部分和 逆时针弹簧(22)的上端部分。 顺时针弹簧(21)的上端部支撑在上弹簧座部(15)上,逆时针方向的弹簧(22)的下端部支承在下弹簧座部(17)上。 位于顺时针弹簧(21)的下端的有效绕组的起点和位于逆时针方向弹簧(22)的上端的有效绕组的起始点或位于 顺时针弹簧(21)的下端和位于逆时针方向的弹簧(22)的上端的元件线的端部沿圆周方向相对于顺时针方向的轴线彼此偏移180±45度 弹簧(21)或逆时针弹簧(22)。 弹簧座(23)包括邻接板部分(23a)和管状部分(23b),并且是可移动的。
    • 9. 发明授权
    • Piston ring for shock absorber
    • 活塞环用于减震器
    • US06176492B1
    • 2001-01-23
    • US09131534
    • 1998-08-10
    • Seiji Sawai
    • Seiji Sawai
    • B60T11236
    • F16J9/06F16F9/3405F16F9/368
    • A number of embodiments of piston sealing arrangements for shock absorbers having a hydraulic cylinder in which a piston is slidably supported to define a pair of fluid chambers. The piston is provided with a peripheral groove in which a sealing piston ring is provided. A number of different communicating passage arrangements are formed in the piston ring that communicate the exterior surface of the piston ring which engages the cylinder bore with the interior surface of the piston ring which faces the ring groove so as to balance the pressure therebetween. In each embodiment a seal is provided between the piston ring groove and the piston ring so as to preclude fluid flow from one fluid chamber to the other through the piston ring groove and the communicating passage arrangement.
    • 用于具有液压缸的减震器的活塞密封装置的多个实施例,其中活塞可滑动地支撑以限定一对流体室。 活塞设置有周边槽,密封活塞环设置有周向槽。 在活塞环中形成有多个不同的连通通道装置,该活塞环将活塞环的与汽缸孔相接合的外表面与活塞环的面向环槽的内表面相通以平衡其间的压力。 在每个实施例中,在活塞环槽和活塞环之间设置有密封件,以防止流体通过活塞环槽和连通通道装置从一个流体室流向另一个。