公开(公告)号：US20200371000A1

公开(公告)日：2020-11-26

申请号：US16989281

申请日：2020-08-10

Applicant: SHOWA CORPORATION

Inventor： Yasuji Shibahata ,  Tatsuru Niihara ,  Miki Kohso ,  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.

公开(公告)号：US20200171909A1

公开(公告)日：2020-06-04

申请号：US16782724

申请日：2020-02-05

Applicant: SHOWA CORPORATION

Inventor： Yosuke MURAKAMI

IPC: B60G17/08

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.

公开(公告)号：US20200080612A1

公开(公告)日：2020-03-12

申请号：US16682057

申请日：2019-11-13

Applicant: Showa Corporation

Inventor： Gota NAKANO ,  Kunio SHIBASAKI

IPC: F16F9/18 ,  F16F9/34

Abstract: The hydraulic damper 1 includes: a cylinder 11 storing oil; a piston unit connected to a rod moving in an axial direction and configured to move within the cylinder 11; an outer cylinder body 12 outside of the cylinder 11 and forming a communication path L through which oil flows along with movement of the piston unit; a damper case 13 outside of the cylinder 11 and forming a reservoir chamber R to retain oil; a damping force changer 52 external to the cylinder 11 and configured to generate a damping force by throttling flow of oil along with movement of the piston unit and configured to change magnitude of the damping force; and a joint piece 61 forming a channel 61R of oil from the communication path L to the damping force changer 52 and including an external valve to control flow of oil flowing through the channel 61R.

公开(公告)号：US10584703B2

公开(公告)日：2020-03-10

申请号：US15388522

申请日：2016-12-22

Applicant: Showa Corporation

Inventor： Toshio Nishikawa

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/06 ,  F04C29/12 ,  F01C21/08 ,  F04C2/344

Abstract: An embodiment provides a vane pump device includes multiple vanes; a rotor that includes vane grooves which movably support the vanes and which are formed with columnar grooves accommodating oil on rotation center side, and that rotates due to a rotating force received from a rotation shaft; a cam ring that surrounds the rotor; and an inner plate that is disposed on one end portion side of the cam ring in a direction of a rotation axis to cover an opening of the cam ring. The inner plate includes a first portion that is provided to face the grooves, and supplies low pressure oil to the grooves, and a second portion which is provided to face the grooves, supplies high pressure oil to the grooves, and has a width in a radial direction of rotation which is different from that of the first portion in the radial direction of rotation.

公开(公告)号：US10457109B2

公开(公告)日：2019-10-29

申请号：US15203453

申请日：2016-07-06

Applicant: Showa Corporation

Inventor： Yosuke Murakami ,  Fumiaki Ishikawa ,  Hiroyuki Miyata

IPC: B60G17/00 ,  B60G17/019 ,  B60G17/015 ,  B60G17/027

Abstract: A vehicle height adjustment device includes an actuator, a detector, and a controller. The actuator is driven when supplied with a current and is configured to change a relative position of a body of a vehicle relative to an axle of a wheel of the vehicle. The detector is configured to detect the relative position. The controller is configured to control the current supplied to the actuator to make the relative position a target value so as to adjust a vehicle height of the body. When a detection value of the detector is smaller than the target value of the relative position, the controller is configured to alternately supply an increase current and a maintenance current to the actuator. The increase current increases the relative position to increase the vehicle height. The maintenance current maintains the relative position to maintain the vehicle height.

公开(公告)号：US20190291838A1

公开(公告)日：2019-09-26

申请号：US16438051

申请日：2019-06-11

Applicant: SHOWA CORPORATION

Inventor： Takahiko SAITO ,  Yoshimitsu KOMURO ,  Hayato TSUTSUI

IPC: B63H20/10 ,  B63H20/02

Abstract: Provided is an outboard motor raising and lowering apparatus that is capable of automatically changing the speed of raising/lowering an outboard motor according to a status of the outboard motor. The outboard motor raising and lowering apparatus (1) includes: a first fluid passage that connects a pump (42), a second chamber(s) of one or more tilt cylinders (14), and a second chamber(s) of one or more trim cylinders (12); a second fluid passage that is connected to the first chamber of at least one of the one or more trim cylinders; a switching valve (60) provided at the second fluid passage; and a control section (100) configured to control the switching valve with reference to a watercraft status signal.

公开(公告)号：US10400843B2

公开(公告)日：2019-09-03

申请号：US15295861

申请日：2016-10-17

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: F16F9/18 ,  F16F13/06 ,  F16F9/08 ,  F16F9/084 ,  F16F9/58 ,  F16F9/49 ,  F16F9/06 ,  B62K25/28 ,  B62K25/08

Abstract: A damper includes a cylinder, a piston, a piston rod, a rod-side fluid chamber, a piston-side fluid chamber, an annular fluid chamber, and a stopper mechanism. The cylinder includes an inner tube and an outer tube. The rod-side fluid chamber is defined by the piston in the inner tube on a lower end side. The piston-side fluid chamber is defined by the piston in the inner tube on an upper end side. The annular fluid chamber is between the inner and outer tubes. At least one communication hole communicates the rod-side fluid chamber with the annular fluid chamber. A communication passage communicates the rod-side fluid chamber with the annular fluid chamber. A check valve in the communication passage allows fluid to flow from the annular fluid chamber to the rod-side fluid chamber and disallows the fluid to flow from the rod-side fluid chamber to the annular fluid chamber.

公开(公告)号：US10369858B2

公开(公告)日：2019-08-06

申请号：US15466155

申请日：2017-03-22

Applicant: Showa Corporation

Inventor： Takumi Morita ,  Hiroaki Kurihara ,  Masaki Sugimoto

IPC: B60G17/015 ,  B60G17/018 ,  B60G17/019 ,  B60G17/08 ,  B60G17/00

Abstract: A suspension controller includes a target current setting unit, a current limitation setting unit, a current outputting unit, a current detector, and an estimated temperature calculator. The target current setting unit sets a target current value. The current limitation setting unit sets a current limitation value. The current outputting unit supplies a solenoid with a current that is based on the target current value, the current limitation value, and a power supply voltage. The solenoid controls a damping force of a suspension. The current detector detects a current value of the current supplied to the solenoid. The estimated temperature calculator calculates an estimated temperature of the solenoid based on the current value detected by the current detector so that the current limitation setting unit changes the current limitation value based on the estimated temperature.

公开(公告)号：US10364882B2

公开(公告)日：2019-07-30

申请号：US15215842

申请日：2016-07-21

Applicant: Showa Corporation

Inventor： Shingo Ishige

IPC: F16H57/08 ,  B62D5/00 ,  F16H1/28 ,  F16D11/16 ,  F16D27/118

Abstract: A clutch for use in a steer-by-wire steering device for a vehicle is configured to switch between mechanically coupling and uncoupling a torque transmission path between a steering member operated by a driver and a wheel-turning unit configured to turn wheels. The clutch includes a position change member and a conduction path. The position change member is configured to change between a first position and a second position to switch between mechanically coupling and uncoupling the torque transmission path. The conduction path includes two points that come into contact with or separate from each other in accordance with positional change of the position change member. The conduction path is connected to an electric circuit configured to detect a change in a resistance value of the conduction path.

公开(公告)号：US10315722B2

公开(公告)日：2019-06-11

申请号：US15463851

申请日：2017-03-20

Applicant: Showa Corporation

Inventor： Yosuke Murakami ,  Hiroyuki Miyata

IPC: F16F9/56 ,  B62K25/08 ,  B60G11/56 ,  B60G17/048 ,  B62K25/04

Abstract: A flow path control device according to one embodiment includes a first valve which transitions between a closed state where a first flow is closed and an open state where the first flow path is open by moving toward an space from the closed state. The first valve is formed with an axial through-hole that communicates with the first flow path and the space. A pressure-receiving area of the first valve against a jack chamber is smaller than that against the space. Further, a second valve is provided in the space on a second flow path so as to transition between a first state where the axial through-hole is closed and an inflow path oriented toward the space from the jack chamber is open and a second state where it is closed and the axial through-hole is open.