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1. 发明专利

JPS57124144A Oil hydraulic shock absorber 失效
标题翻译：油液压减震器
公开(公告)号：JPS57124144A
公开(公告)日：1982-08-02
申请号：JP945981
申请日：1981-01-24
申请人： Showa Mfg Co Ltd
发明人： ITOU HIDEKUNI
IPC分类号： F16F9/34 , F16F9/50 , F16F9/512
CPC分类号： F16F9/512
摘要： PURPOSE:To improve comfortableness of a ride, by providing a blow-off valve in at least one of the oil passages and suitably selecting the tension of its blow- off spring then opening its flow path at a high piston speed. CONSTITUTION:A blow-off valve 10 closing an oil passage 4 with a normal spring 9 is equipped in at least one of the oil passages 4 provided in a piston 3, at a high speed of the piston, that is, at occurrence of a pressure difference not less than a valve lift DELTAl, the blow-off valve 10 is opened by suitably selecting tension of said spring 9 to release oil from a bypass 11, thus speed of the piston can be arranged in proportion to its damping power.
摘要翻译：目的：为了提高乘坐的舒适性，通过在至少一个油路中设置吹扫阀，并适当地选择其吹出弹簧的张力，然后以高活塞速度打开其流动路径。构成：在活塞3的至少一个设置在活塞3上的油路4中，配置有用普通弹簧9封闭油路4的排出阀10，即活塞的高速度，即，在压力差不小于气门升程DELTA1，通过适当地选择所述弹簧9的张力以从旁路11释放油来打开排气阀10，从而与其阻尼功率成比例地布置活塞的速度。

2. 发明专利

JPS59194143A Piston structure for hydraulic damper 失效
标题翻译：液压阻尼器活塞结构
公开(公告)号：JPS59194143A
公开(公告)日：1984-11-02
申请号：JP6794983
申请日：1983-04-18
申请人： Showa Mfg Co Ltd
发明人： ITOU HIDEKUNI
IPC分类号： F16F9/34 , F16F9/348
CPC分类号： F16F9/348
摘要： PURPOSE:To eliminate scatter in damping force, by providing such an arrangement that the sizes and shapes of disc valves which are set on both end faces of a piston are made equal. CONSTITUTION:Annular recess parts 10, 11 are formed on the top and bottom faces of a piston 4, respectively, and therefore, concentrically circular outer and inner ring seats 12a, 12b, 13a, 13b are formed. A plurality of disc valves 14, 15 abut against the ring seats. The piston 4 is formed, in its barrel section, with a plurarity of axial oil passages each having its top end opened to the recess part 10 and its bottom end blocked, and a plurarity of axial oil passages 17 each having, in contrast with the passages 16, its top end blocked and its bottom end opened to the another recess part 11. Further, the piston 4 is formed, in its peripheral wall, with a pulling side oil hole 18 which is opened to an oil passage 16 that is therefore communicated with an operating chamber S2, a relatively small diameter common oil passage 19 which is also opened to the oil passage 16 for always communicating between an upper operating chamber S1 and the lower operating chamber S2, and a pushing side oil hole 20 opened to the oil passage 17 that is therefore communicated with the upper operating chamber S1.
摘要翻译：目的：为了消除阻尼力的散射，通过提供这样一种布置，使得设置在活塞的两个端面上的盘阀的尺寸和形状相等。构成：环状凹部10,11分别形成在活塞4的顶面和底面上，因此形成同心圆形的外圈和内圈座12a，12b，13a，13b。多个盘阀14,15抵靠环座。活塞4在其筒部中形成多个轴向油通道，每个轴向油通道的顶端向凹部10敞开，其底端被阻塞，并且多个轴向油通道17各自具有与通道16，其顶端被封闭，其底端向另一个凹部11敞开。此外，活塞4在其周壁上形成有一个向油路16开口的拉动侧油孔18，因此，与操作室S2连通，操作室S2是相对小直径的公共油通道19，其通道也通向油通道16，用于始终连通上操作室S1和下操作室S2;以及推动侧油孔20，油通道17因此与上操作室S1连通。

3. 发明专利

JPS59187123A Sub-tank of hydraulic shock absorber 失效
标题翻译：液压减震器分舱
公开(公告)号：JPS59187123A
公开(公告)日：1984-10-24
申请号：JP6123783
申请日：1983-04-07
申请人： Showa Mfg Co Ltd
发明人： ITOU HIDEKUNI
IPC分类号： F16F9/32 , F15B1/24 , F16F9/06 , F16F9/40
CPC分类号： F16F9/06
摘要： PURPOSE:To prevent the oil from the generating of air bubbles and obtain the stabilized damping force by a method wherein an oil pipe is provided, an opening of the oil pipe is located in an oil layer in a sub-tank in which the oil layer and a pressurized gas layer are provided. The pipe is connected to a connecting pipe being connected to a cylinder. CONSTITUTION:An oil layer 8 and a gas layer 9 being enclosed with a pressurized gas are provided in a sub-tank 1. An opening end of an oil pipe 6 is extended to the vicinity of a lower cover 3, opened in the oil layer 8, and the other end of the oil pipe connected to an oil channel 7 of a connecting part 5 of a connecting pipe. Therefore, when an oil is moved via a connecting pipe 4 which connects a cylinder having a piston to the sub-tank 1, the oil is moved through the oil pipe 6 of which opening is located in the oil, accordingly, the oil is prevented from mixing of air bubbles and stabilized damping force can be obtained.
摘要翻译：目的：为了防止油产生气泡并通过其中设置油管的方法获得稳定的阻尼力，油管的开口位于副罐中的油层中，其中油层并设置加压气体层。管连接到连接到气缸的连接管。构成：在副容器1中设置油层8和被加压气体包围的气体层9.油管6的开口端延伸到下盖3的附近，在油层 8，油管的另一端与连接管的连接部5的油路7连接。因此，当油通过将具有活塞的气缸连接到副罐1的连接管4移动时，油通过其中开口位于油中的油管6移动，从而防止油可以获得气泡的混合和稳定的阻尼力。

4. 发明专利

JPS58180846A Damping force generating apparatus of hydraulic buffer 失效
标题翻译：液压缓冲器阻力发电装置
公开(公告)号：JPS58180846A
公开(公告)日：1983-10-22
申请号：JP6362782
申请日：1982-04-16
申请人： Showa Mfg Co Ltd
发明人： ITOU HIDEKUNI
IPC分类号： B60G15/00 , B60G17/00 , B60G17/015 , B60G17/08 , B62K25/10 , F16F9/32 , F16F9/348 , F16F9/44
CPC分类号： F16F9/446 , B60G15/00
摘要： PURPOSE: To make easy the adjustment of a generated damping force and to enhance the maintainability, by providing a damping force generating apparatus of a hydraulic buffer that is used as a rear cushion for bicycles or the like and in which a bottom plate of a sub-tank is provided with a valve for controlling a flow between the sub-tank and a cylinder oil chamber.
CONSTITUTION: The bottom plate 19 of the sub-tank 15 is formed with oil passages 21, 22 for communicating a working chamber of a cylinder with an oil chamber of the sub-tank, and the damping force generating apparatus 30 is fixed between the oil passages 21, 22. Check valves 36, 38 are arranged on opposite surfaces of a valve seat 31, and the check valve 36 can be forcibly opened against a spring 47 thereby generating a damping force. The check valve 38 can be forcibly opened against a spring 40 thereby generating a damping force. By rotating an adjustment dial 42 to move a rod 41 vertically, the set length of the spring 47 can be varied to adjust the damping force.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：通过提供用作自行车等的后缓冲器的液压缓冲器的阻尼力发生装置，能够容易地调节所产生的阻尼力并提高可维护性，并且其中底部的底板托架设置有用于控制副罐和气缸油室之间的流动的阀。构成：副罐15的底板19形成有用于使气缸的工作室与副罐的油室连通的油路21,22，并且阻尼力产生装置30固定在油止回阀36,38布置在阀座31的相对表面上，并且止回阀36可以被强制地打开在弹簧47上，从而产生阻尼力。止回阀38可以被强制地打开抵靠弹簧40，从而产生阻尼力。通过旋转调节拨盘42以垂直地移动杆41，可以改变弹簧47的设定长度以调节阻尼力。

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