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公开(公告)号：US20130313057A1
公开(公告)日：2013-11-28
申请号：US13750182
申请日：2013-01-25
Applicant: SHOWA CORPORATION
Inventor： Takashi Tsukahara , Noriaki Maneyama
IPC: F16F9/19
Abstract: A hydraulic shock absorber includes: a cylinder which demarcates a piston oil chamber and a rod oil chamber; an outer cylinder body which demarcates between the cylinder and the outer cylinder body a reflux path that connects the piston oil chamber and the rod oil chamber with each other and which demarcates between a damper case and the outer cylinder body a reservoir chamber; and a valve structure mounted to the cylinder and the outer cylinder body. The valve structure has a valve for controlling an oil flow between the piston oil chamber and the reflux path and between the piston oil chamber and the reservoir chamber. The valve structure comprises a first valve structure mounted to an open end of the cylinder and a second valve structure mounted to an open end of the outer cylinder body. A cylinder assembly and an outer cylinder assembly are independently arranged.
Abstract translation: 液压减震器包括：气缸，其限定活塞油室和杆油室; 外筒体，其在所述气缸和所述外筒体之间划定将所述活塞油室和所述杆油室彼此连接并且在减震器壳体和所述外筒体之间划定的储存室的回流路径; 以及安装到气缸和外筒体上的阀结构。 阀结构具有用于控制活塞油室与回流路径之间以及活塞油室与储存室之间的油流的阀。 阀结构包括安装到气缸的开口端的第一阀结构和安装到外筒体的开口端的第二阀结构。 气缸组件和外筒组件独立地布置。
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公开(公告)号：US20130285300A1
公开(公告)日：2013-10-31
申请号：US13775858
申请日：2013-02-25
Applicant: SHOWA CORPORATION
Inventor： Masao SHIMASAKI , Kimitoshi SATO , Yuji OHUCHI , Masakazu KUWAHARA , Tatsuya TAKAHASHI , Takatoshi OHMI , Tadashi HACHISUKA , Yosuke MURAKAMI
IPC: B60G15/06
CPC classification number: B60G15/06 , B60G15/061 , B60G2202/30 , B62K25/08 , B62K2025/048 , F16F1/121 , F16F9/00 , F16F2230/186
Abstract: An object of the present invention is to ensure that, during adjustment of a spring load by an adjuster, total fully-stretched lengths of an outer tube and an inner tube remain unchanged and the adjuster is prevented from protruding from an upper surface of a cap. In a hydraulic shock absorber 10, a spring load adjusting device 30 is configured such that an adjuster 31 is provided at an upper end portion of a vehicle body side tube 11, a push rod 33 that is moved up and down by the adjuster 31 is penetrated into a hollow portion of a hollow rod 23, a suspension spring 35 is pressurized by the push rod 33 that protrudes from the hollow portion of the hollow rod 23 to the inside of a wheel side tube 12, and the spring load of the suspension spring 35 can be adjusted by the up-and-down motion of the push rod 33 caused by the adjuster 31.
Abstract translation: 本发明的目的是确保在通过调节器调节弹簧负载期间，外管和内管的总完全拉伸长度保持不变，并且防止调节器从帽的上表面突出 。 在液压缓冲器10中，弹簧负载调整装置30构成为，在车体侧管11的上端设有调节器31，由调节器31上下移动的推杆33 穿过中空杆23的中空部分，悬挂弹簧35被从中空杆23的中空部分突出到侧轮管12的内侧的推杆33加压，悬架弹簧35的弹簧载荷 可以通过由调节器31引起的推杆33的上下运动来调节弹簧35。
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公开(公告)号：US20130257011A1
公开(公告)日：2013-10-03
申请号：US13673443
申请日：2012-11-09
Applicant: SHOWA CORPORATION
Inventor： Yosuke MURAKAMI , Kazuhiro MIWA
CPC classification number: F16F9/18 , B62K25/08 , F16F9/182 , F16F9/3485
Abstract: A damping force generator for a hydraulic shock absorber featuring an increased deflection (bending) characteristic of a damping valve to widen the adjustable range of a damping force. In a damping force generator (70) for a hydraulic shock absorber, the damping valve (80) undergoes deflections with boundaries (71C) between secured portions (71A) and recessed portions (71B) of the valve seat (71) as supporting points K, and inner and outer peripheries of the damping valve (80) are disposed on an outside of line segments L each connecting two circumferentially adjacent supporting points K, K of the valve seat (71).
Abstract translation: 一种用于液压减震器的阻尼力发生器，其特征在于阻尼阀的偏转（弯曲）特性增加，以加宽阻尼力的可调节范围。 在用于液压减震器的阻尼力发生器（70）中，阻尼阀（80）在阀座（71）的固定部分（71A）和凹入部分（71B）之间经过边界（71C）作为支撑点K ，并且阻尼阀（80）的内周和外周设置在连接阀座（71）的两个周向相邻的支撑点K，K的线段L的外侧。
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公开(公告)号：US11987296B2
公开(公告)日：2024-05-21
申请号：US17063344
申请日：2020-10-05
Applicant: SHOWA CORPORATION
Inventor： Shingo Ishige , Yusuke Anma
IPC: B62D5/04 , H02P25/22 , H02P29/028
CPC classification number: B62D5/0463 , B62D5/0481 , H02P25/22 , H02P29/028
Abstract: A steering device includes: a plurality of electric motors 10 configured to be driven to turn wheels of a vehicle; and three or more drive systems 20 each configured to output a driving force for driving a corresponding one of the electric motors 10 to the corresponding one of the electric motors 10. A total of maximum driving forces each of which is a maximum value of a driving force of each drive system 20 of the steering device is set larger than a required driving force required to turn the wheels with the vehicle stationary, and in an event of a failure occurring in one of the three or more drive systems 20, a total of the maximum driving forces of other properly working drive systems 20 out of the three or more drive systems 20 amounts to the required driving force.
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公开(公告)号：US11685425B2
公开(公告)日：2023-06-27
申请号：US17061034
申请日：2020-10-01
Applicant: SHOWA CORPORATION
Inventor： Satoshi Enomoto , Takayuki Tetsuka
CPC classification number: B62D5/0403 , B62D3/12 , B62D5/0424 , F16H7/02
Abstract: An electric power steering device includes: an electric motor; a rack shaft configured to move axially; a conversion unit configured to convert rotational driving force of the moto into movement of the rack shaft; a first housing configured to cover a part of an outer surface of the rack shaft and including a first leg portion fixed to a vehicle; a second housing configured to cover a part of the outer surface of the rack shaft and including a fourth connecting portion covering the conversion unit and a second leg portion fixed to the vehicle; and an intermediate housing disposed between the first and second housings and configured to cover a part of the outer surface of the rack shaft 3 and including a motor support portion supporting the motor.
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Patent Agency Ranking
公开(公告)号：US11674558B2
公开(公告)日：2023-06-13
申请号：US16817137
申请日：2020-03-12
Applicant: Showa Corporation
Inventor： Gota Nakano , Tomoaki Shinozaki
CPC classification number: F16F9/3488 , F16F9/185 , F16F9/3484 , F16F9/3482
Abstract: The hydraulic shock absorber includes: a first cylinder containing fluid; a piston body including extension-side oil paths permitting flow of oil along with relative movement of the piston rod in the axial direction of the first cylinder; and an extension-side damping valve configured to open and close the extension-side oil paths of the piston body. The extension-side damping valve includes: a valve plate configured to close the extension-side oil paths by covering them and open them by deforming under pressure of oil; and a preload member configured to apply a preload to the valve plate. The preload member includes: a ring-shaped portion; and axis alignment portions configured to protrude from an outer periphery of the ring-shaped portion and contact the piston body to thereby perform axis alignment.
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公开(公告)号：US11603900B2
公开(公告)日：2023-03-14
申请号：US17075807
申请日：2020-10-21
Applicant: SHOWA CORPORATION
Inventor： Gota Nakano , Chikara Yanagisawa
Abstract: A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; a valve configured to control a flow of the liquid in the flow passage; a back pressure control valve configured to control a pressure in a back pressure chamber that provides a back pressure to the valve by inflow of the liquid; and an accommodation part that is in a tubular shape with one side opening end narrower than another side opening end, forms the back pressure chamber, and accommodates at least the valve and the back pressure control valve.
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公开(公告)号：US11466747B2
公开(公告)日：2022-10-11
申请号：US17074143
申请日：2020-10-19
Applicant: SHOWA CORPORATION
Inventor： Gota Nakano , Chikara Yanagisawa
Abstract: A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; and a valve that is configured to control a flow of the liquid in the flow passage. The flow passage formation part includes a first seat part that is provided radially outward of a flow passage port of the flow passage, protrudes from the flow passage port and contacts the valve, a second seat part that is provided radially outward of the first seat part, protrudes from the flow passage port and contacts the valve, and a circulation part having an orifice that allows the liquid to flow from the flow passage port toward the second seat part in a state in which the valve is in contact with the first seat part.
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公开(公告)号：US11339846B2
公开(公告)日：2022-05-24
申请号：US16688483
申请日：2019-11-19
Applicant: Showa Corporation
Inventor： Kota Suzuki
IPC: F16F9/46 , F16F9/50 , B60G17/056 , B60G17/08
Abstract: A suspension apparatus includes: a damping device; an operating section; and a determination section. The determination section uses a base damping force determined based on a change velocity and an extension occasion adjustment value, or the base damping force, the extension occasion adjustment value and a zero occasion adjustment value to determine a target value of an extension occasion damping force. The determination section uses the base damping force, a compression occasion adjustment value and the zero occasion adjustment value, or the base damping force and the compression occasion adjustment value to determine a target value of an compression occasion damping force. The determination section uses the base damping force and the zero occasion adjustment value to determine a target value of a zero occasion damping force.
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公开(公告)号：US11332186B2
公开(公告)日：2022-05-17
申请号：US16807826
申请日：2020-03-03
Applicant: Showa Corporation
Inventor： Hiroaki Kurihara
IPC: B62D5/04
Abstract: The failure detection device includes: an output unit detecting failure of a torque detection device that detects torque applied to a pinion shaft with torque sensors, and a target current calculation unit controlling drive of the electric motor. In response to detection of failure of one of the torque sensors, the target current calculation unit causes the motor to output continuous torque continuously generating torque that is detectable by the other of the torque sensors and, in response to the motor outputting the continuous torque, the output unit diagnoses failure of the other of the torque sensors based on a pattern of vibrations detected by the other torque sensor due to the continuous torque and determines that the other torque sensor is having failure if amplitude of vibrations is less than a reference amplitude.
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