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公开(公告)号：US11230155B2
公开(公告)日：2022-01-25
申请号：US16670078
申请日：2019-10-31
Applicant: Showa Corporation
Inventor： Masato Tokuhara
IPC: B60G17/016 , B60W30/14
Abstract: A control apparatus for a suspension apparatus, includes: a vehicle speed acquiring section which acquires a vehicle speed as a speed of a vehicle; an acquisition section which acquires a stroke velocity of the suspension apparatus; a contribution ratio determining section which determines a contribution ratio between a first parameter and a second parameter based on the vehicle speed, the first parameter serving for controlling a damping force in a first speed region of the vehicle, the second parameter serving for controlling the damping force in a second speed region which is a speed region higher in speed than the first speed region; a change amount restricting section which restricts a change amount of the contribution ratio; and a damping force controlling section which controls the damping force of the suspension apparatus based on the restricted contribution ratio and the stroke velocity.
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公开(公告)号：US11216018B2
公开(公告)日：2022-01-04
申请号：US17078854
申请日：2020-10-23
Applicant: SHOWA CORPORATION
Inventor： Yosuke Murakami , Yosuke Fujikawa
Abstract: A valve device includes an operating unit, a first pushing member, a plate-like member, a second pushing member, and a valve. The plate-like member includes a plurality of the moment arms arranged at intervals in a circumferential direction. A force point of each of the plurality of the moment arms is pushed by a front end of the first pushing member. The second pushing member has an acted surface receiving a force from an action point of each of the plurality of the moment arms. The plurality of the moment arms are integrally connected by an annular frame portion of the plate-like member where the fulcrum is disposed.
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公开(公告)号：US11162554B2
公开(公告)日：2021-11-02
申请号：US16484031
申请日：2017-05-10
Applicant: Showa Corporation
Inventor： Gota Nakano , Kazunari Maeda , Hiroshi Endo , Seiryo Konakai
Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and an imparting part having elasticity, the imparting part being configured to impart, to the valve, a load that is uneven in a circumferential direction of the valve and directed toward the piston.
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公开(公告)号：US11104372B2
公开(公告)日：2021-08-31
申请号：US16609661
申请日：2017-06-29
Applicant: SHOWA CORPORATION
Inventor： Norifumi Terada
Abstract: A vehicle steering device includes a turning shaft movable in a vehicle widthwise direction, a housing that retains therein the turning shaft, a stopper provided at a shaft end of the turning shaft exposed from the housing, and a collision buffer member, which is provided at the housing, and which restricts a movable range of the stopper in the vehicle widthwise direction. The collision buffer member has an elastic region that absorbs an abutment load by a normal steering operation input from the stopper, and a plastic region that absorbs a shock load input from the stopper and greater than the abutment load by the normal steering operation.
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公开(公告)号：US11084371B2
公开(公告)日：2021-08-10
申请号：US16468248
申请日：2017-12-28
Applicant: SHOWA CORPORATION , HONDA MOTOR CO., LTD. , F-TECH INC.
Inventor： Kenji Fukasawa , Kenji Kato , Hiroyuki Takahashi , Yutaka Hozumi , Sumitaka Ito , Junichi Midorikawa , Masayuki Sasaki
Abstract: A motor drive device includes: a trailing arm that extends in a vehicle front-rear direction and includes a vehicle body-side attachment portion and wheel-side support portion, the vehicle body-side attachment portion formed on a forward portion side of the trailing arm and coupled to a vehicle body via a rubber bush, the wheel-side support portion formed on a rear side of the trailing arm and supporting a rear wheel; and a motor that is supported by the trailing arm and drives the rear wheel. The motor and the rubber bush are disposed in such a way that motor and the rubber bush are seen as being substantially aligned in a vehicle up-down direction when viewed in a vehicle width direction.
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Patent Agency Ranking
公开(公告)号：US10975895B2
公开(公告)日：2021-04-13
申请号：US16570598
申请日：2019-09-13
Applicant: Showa Corporation
Inventor： Hayato Tsutsui , Nobuaki Tanaka
IPC: F15B15/14
Abstract: A piston structure body includes: a piston that includes a through hole, an inner circumferential portion, and an outer circumferential portion, the through hole being a hole that is formed to penetrate the piston axially through a center of a first face that is an end face on one end side in an axial direction, the inner circumferential portion defining the through hole and connected to the first face, the outer circumferential portion disposed to surround the inner circumferential portion and connected to the first face; and a piston rod that is inserted through the through hole. A first end face that is an end face of the inner circumferential portion on a back face side of the first face is positioned more closely to the first face than a second end face that is an end face of the outer circumferential portion on the back face side.
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公开(公告)号：US10974803B2
公开(公告)日：2021-04-13
申请号：US16567640
申请日：2019-09-11
Applicant: Showa Corporation
Inventor： Hayato Tsutsui
Abstract: A steering device includes: a cylinder; a normal/reverse rotation type hydraulic power source; an oil storage tank; a first oil passage that connects the cylinder with the hydraulic power source; a second oil passage that connects the cylinder with the hydraulic power source; an oil passage group that includes at least one oil passage connecting at least one of the first oil passage and the second oil passage with the oil storage tank; and a changeover valve group that performs changeover between a state in which hydraulic oil recovered from the cylinder flows back to the oil storage tank and a state in which hydraulic oil supplied from the hydraulic power source to the cylinder does not flow back to the oil storage tank, in accordance with a state of hydraulic oil supplied by the hydraulic power source.
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公开(公告)号：US20210061346A1
公开(公告)日：2021-03-04
申请号：US16611439
申请日：2017-06-29
Applicant: SHOWA CORPORATION
Inventor： Yukinari Sato , Takayuki Tetsuka , Shingo Ishige , Akira Shirakawa , Tsukasa Suzuki
Abstract: A vehicle steering device includes a turning shaft held in a housing so as to be movable in the axial direction, a ball screw transmitting drive force produced by an electric motor to the turning shaft, a bearing supporting a nut, which is a component of the ball screw, so as to be rotatable relative to the housing, and annular elastic members that support side faces of the bearing in the axial direction of the turning shaft across the entire circumference, and are formed of an elastic material. The elastic members include respective first elastic portions having a first load characteristic that gently increases the ratio of compression load per a unit compression amount deforming in the axial direction of the turning shaft, and respective second elastic portions having a second load characteristic that keenly increases the ratio in comparison with the first load characteristic.
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公开(公告)号：US10935099B2
公开(公告)日：2021-03-02
申请号：US16420843
申请日：2019-05-23
Applicant: Showa Corporation
Inventor： Genki Yanagidate
Abstract: An outboard engine lifting/lowering device includes: a bracket which is to be rotatably provided to a hull and which is to be fixed to a propulsion device; and a rod unit which includes a tilt rod and a trim rod that are configured to rotate the propulsion device and the bracket. The bracket is provided with a receiving part configured to receive a tip end of the trim rod, and the receiving part includes: a buffer member made of a resin or rubber; and a contact member made of metal, which is provided on a surface of the buffer member at a side at which the trim rod is arranged, and which is in contact with the tip end of the trim rod.
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公开(公告)号：US20210016824A1
公开(公告)日：2021-01-21
申请号：US17063344
申请日：2020-10-05
Applicant: SHOWA CORPORATION
Inventor： Shingo ISHIGE , Yusuke ANMA
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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