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公开(公告)号：US11760147B2
公开(公告)日：2023-09-19
申请号：US17108746
申请日：2020-12-01
Applicant: SHOWA CORPORATION
Inventor： Yasuhiro Aoki
CPC classification number: B60G13/08 , F16F9/062 , F16F9/3214 , F16F9/3221 , F16F9/3278 , F16F9/368
Abstract: A shock absorber includes an outer tube, an inner tube fitted to the outer tube so as to be able to move forward and backward, a cylinder provided inside the outer tube and extending inside the inner tube, a rod extending from an end portion of the inner tube exposed from the outer tube to an inside of the cylinder, and a piston which is provided on the rod and divides the inside of the cylinder to form a gas chamber. On an outer peripheral surface of the piston, a first lubricating member, a first seal member, and a second seal member are provided in this order from a side closest to the gas chamber to a side away from the gas chamber. The members are in sliding contact with an inner peripheral surface of the cylinder.
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公开(公告)号：US11712940B2
公开(公告)日：2023-08-01
申请号：US16782724
申请日：2020-02-05
Applicant: SHOWA CORPORATION
Inventor： Yosuke Murakami
CPC classification number: B60G17/08 , F16F9/48 , F16F9/512 , F16F9/516 , B60G2202/24 , B60G2300/12 , B60G2400/10 , B60G2400/25 , B60G2500/114 , B60G2600/70 , B60G2800/91
Abstract: A suspension device includes: a suspension including a damping device which damps a force generated between a vehicle body and a wheel; and a damping force control unit that increases a damping force of the damping device so as to be greater than the damping force generated when an acceleration of change in a stroke amount is less than a predetermined value determined in advance, when the acceleration of the change in the stroke amount is equal to or greater than the predetermined value, in which the stroke amount is an amount of displacement from a reference position of the wheel with respect to the vehicle body in an extension direction of the suspension.
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公开(公告)号：US11499891B2
公开(公告)日：2022-11-15
申请号：US16989281
申请日：2020-08-10
Applicant: SHOWA CORPORATION
Inventor： Yasuji Shibahata , Tatsuru Niihara , Miki Isshiki , Shigeharu Shibahata , Hirokazu Fujimoto
IPC: G01M17/02
Abstract: A tire tester includes a plurality of tire holding units attached to a movable member or a towed member and each configured to detachably hold a tire, and one or more load measuring units for measuring a load acting on the tire. The plurality of tire holding units include a first tire holding unit configured to detachably hold a first tire, and one or more second tire holding units each configured to detachably hold a second tire. The second tire holding unit holds the second tire to generate a force opposite to a lateral component force generated by steering the first tire. The tire holding units are arranged such that at least one tire holding unit is disposed on each right and left side of the movable member or the towed member with respect to a center line passing through a lateral center thereof.
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公开(公告)号：US11306786B2
公开(公告)日：2022-04-19
申请号：US16496330
申请日：2017-05-17
Applicant: SHOWA CORPORATION , HONDA MOTOR CO., LTD.
Inventor： Yuta Saito , Takahiro Nakayama , Sato Kuraishi
Abstract: A cross joint comprises a flange yoke and a stab yoke, each comprising a based end portion and a pair of arm portions having a shaft hole and extending from both sides of the base end portion, and a spider having a first shaft fitted into the shaft hole of the flange yoke and a second shaft fitted into the shaft hole of the stab yoke, wherein the cross joint further comprises a flexing limiting portion, which limits a flexing angle of the cross joint due to mutual contact of a protruding portion of the base end portion and a flange portion of the spider when the flange yoke is flexed to a predetermined angle.
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公开(公告)号：US11254353B2
公开(公告)日：2022-02-22
申请号：US16538360
申请日：2019-08-12
Applicant: SHOWA CORPORATION
Inventor： Ken Isshiki , Eishi Ishimaru
Abstract: An embodiment of the present invention allows for application of an assist torque or reaction torque which causes a driver to feel less discomfort. An ECU (600) includes a control variable calculating section (611) configured to calculate a control variable for controlling a magnitude of the assist torque or reaction torque, with reference to a steering torque applied to a steering member (410); and a control variable correcting section (612) configured to correct the control variable calculated by the control variable calculating section, with reference to a roll rate of a vehicle body, a steering angle of the steering member, and a steering angle speed of the steering member.
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Patent Agency Ranking
公开(公告)号：US11215258B2
公开(公告)日：2022-01-04
申请号：US16722273
申请日：2019-12-20
Applicant: Showa Corporation
Inventor： Hiroyuki Miyata , Yosuke Murakami
Abstract: A hydraulic shock absorber includes: a cylinder; a piston rod on which a first piston, a valve, and a second piston are disposed sequentially from one end side; and an oil lock portion that is disposed on the one end side inside the cylinder, and that forms a gap flow path between the oil lock portion and an outer circumferential surface of the first piston. The first piston has a piston internal flow path, and is displaceable in an axial direction of the piston rod. When the piston rod moves toward the one end side, the first piston relatively moves toward the other end side with respect to the piston rod and the other end side of the first piston abuts against the valve, so that due to a flow of working oil passing through the piston internal flow path, the valve bends to generate damping force.
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公开(公告)号：US11110912B2
公开(公告)日：2021-09-07
申请号：US16538373
申请日：2019-08-12
Applicant: SHOWA CORPORATION
Inventor： Ken Isshiki , Eishi Ishimaru , Kyouichi Tagami , Katsutoshi Yokoi
Abstract: An embodiment of the present invention provides higher ride comfort to a driver in control of steering and suspension. An ECU (600) includes: a steering control section (610) which controls a magnitude of an assist torque or a reaction torque; and a suspension control section (650) which controls a damping force of a suspension. The steering control section (610) refers to a state of a vehicle which state is predicted by the suspension control section (650), and the suspension control section (650) refers to a steering torque.
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公开(公告)号：US20210088099A1
公开(公告)日：2021-03-25
申请号：US17110002
申请日：2020-12-02
Applicant: SHOWA CORPORATION
Inventor： Yosuke FUJIKAWA
Abstract: A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portion 74 and the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed.
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公开(公告)号：US20210018060A1
公开(公告)日：2021-01-21
申请号：US17030215
申请日：2020-09-23
Applicant: Showa Corporation
Inventor： Yosuke FUJIKAWA , Yosuke MURAKAMI
Abstract: A valve mechanism includes: a cylindrical body; a plurality of valve bodies; and a drive valve. The drive valve includes a shaft portion having a flow path penetrating in the axial direction, and a first step portion extending from an outer peripheral surface of the shaft portion to a radial outside of the shaft portion. The shaft portion has a protrusion portion protruding further toward the cylindrical body side than the first step portion and a base portion extending to a side opposite to the protrusion portion with respect to the first step portion. A gap between the valve bodies is changed by elastically deforming an inner peripheral portion of the valve body, which comes into contact with the drive valve moved in a direction approaching the valve body, in a direction approaching the cylindrical body with respect to an outer peripheral portion of the valve body.
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公开(公告)号：US20210009230A1
公开(公告)日：2021-01-14
申请号：US17031434
申请日：2020-09-24
Applicant: Showa Corporation
Inventor： Hiroyuki MIYATA
Abstract: A flow path control device includes: an on-off valve for opening or closing a flow path through which fluid flows from a first chamber to a second chamber; a control valve which controls the opening and closing of the on-off valve by transiting between a first state and a second state; and a push rod which includes a rod-shaped portion of which one end is pressed and moved to the other side and the other end causes the control valve to transition from the first state to the second state and a protruding portion which protrudes radially outward of the rod-shaped portion from an outer peripheral surface of the rod-shaped portion so as to receive pressure of fluid flowing from the first chamber to the second chamber.
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