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公开(公告)号：US20210123493A1
公开(公告)日：2021-04-29
申请号：US17042450
申请日：2019-04-09
摘要： A shock absorber includes a cylinder sealed with a working oil liquid, a piston slidably fitted in the cylinder, a piston rod connected to the piston and extended to the outside of the cylinder, and a plurality of passages through which the working oil liquid flows due to the sliding of pistons therein, and a damping force generating mechanism that is provided in a part of the passages and suppresses the flow of the working oil liquid to generate a damping force. The damping force generating mechanism includes a valve body through which the passage penetrates, an annular seat that projects from the valve body and surrounds the passage, and a disc that can be seated on the seat. A contact width at which the disc and the seat come into contact with each other is different depending on a position in the circumferential direction. As a result, it is possible to obtain a shock absorber capable of suppressing a sudden change in damping force before and after the opening of the disc valve without having a complicated structure.
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公开(公告)号：US20180304718A1
公开(公告)日：2018-10-25
申请号：US15762942
申请日：2016-09-20
发明人： Shinji SETO , Masaki KOYAMA , Shuhei NAGATA , Takashi OGAWA , Yosuke TANABE , Takahiro SUZUKI , Kan KOBAYASHI , Naofumi HARADA , Yoshinori KAWAI , Tomoyuki RI
IPC分类号： B60G17/04 , B60G11/27 , B60G17/052 , F04B35/04 , B60G17/056
摘要： In an air suspension system, starting of a compressor is facilitated in a condition in which there exists a pressure difference. There is provided an air suspension system in which air compressed by a compressor is supplied to a plurality of air chambers provided between a vehicle body side and a wheel side and configured to perform vehicle height adjustment in accordance with the supply and discharge of air. The compressor has a needle connected to a piston and extending in a moving direction of the piston, and an armature reciprocating the needle in the moving direction of the piston.
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公开(公告)号：US20150276000A1
公开(公告)日：2015-10-01
申请号：US14661576
申请日：2015-03-18
CPC分类号： F16F9/34 , F16F9/185 , F16F9/3257 , F16F9/46
摘要： A flow of hydraulic oil induced by sliding movement of a piston in a cylinder is controlled by a damping force generating mechanism to generate a damping force. A flow of hydraulic oil from a casing of the damping force generating mechanism toward a reservoir is regulated by a passage groove formed on the bottom of the casing so as to be directed downward in the reservoir. Thus, the hydraulic oil is efficiently supplied to a base valve from the damping force generating mechanism even when the hydraulic oil is sucked from the reservoir into a cylinder lower chamber through a passage in the base valve during the extension stroke of a piston rod. Therefore, it is possible to suppress a sharp reduction in pressure in the lower part of the reservoir and hence possible to suppress the occurrence of aeration and to obtain stable damping force characteristics.
摘要翻译： 通过活塞在气缸中的滑动运动而引起的液压油流由阻尼力产生机构控制以产生阻尼力。 从阻尼力产生机构的壳体朝向储存器的液压油的流动由形成在壳体的底部上的通道槽调节，以便向下指向储存器。 因此，即使当在活塞杆的延伸冲程期间液压油通过基阀中的通道从储存器被吸入到缸下室中时，液压油也可以从阻尼力产生机构有效地供应到基阀。 因此，可以抑制储存器下部的压力的急剧下降，从而可以抑制通气的发生并获得稳定的阻尼力特性。
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公开(公告)号：US20180015803A1
公开(公告)日：2018-01-18
申请号：US15539268
申请日：2015-12-24
发明人： Naofumi HARADA , Hiroshi FUKUDOME , Tsutomu ITO
CPC分类号： B60G17/0408 , B60G11/27 , B60G2202/15 , B60G2204/20 , F04B39/00 , F04B39/0044 , F04B39/12 , F04B39/14 , F16F15/08
摘要： A bracket (11) has an annular portion (12) provided with a trapezoidal convex portion (13) extending from an inner peripheral edge (12C) to outer peripheral edge (12D) of the annular portion. The convex portion has a top region (13A), an outer wall-side falling region (13B), and an inner wall-side falling region (13C). The annular portion and one vehicle body mounting portion (17) are connected to each other through a non-linear connecting portion (20), and the annular portion and the other vehicle body mounting portion (18) are connected to each other through a non-linear connecting portion (21). This structure makes it possible to increase the moment of inertia of area of the annular portion and to increase the flexural rigidity of the bracket. Further, it is possible to suppress a problem that the connecting portion (20) and the connecting portion (21)become nodes of vibration.
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公开(公告)号：US20170218933A1
公开(公告)日：2017-08-03
申请号：US15329783
申请日：2015-05-28
发明人： Tsutomu ITO , Hiroshi FUKUDOME , Naofumi HARADA
CPC分类号： F04B39/0027 , F04B35/01 , F04B35/04 , F04B39/0005 , F04B39/0022 , F04B39/0094 , F04B39/06 , F04B39/12 , F04B39/128 , F16C3/20 , F16C9/02 , F16C37/00 , F16C37/007 , F16F15/26 , F16F15/283
摘要： A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively.
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