公开(公告)号：US11629773B2

公开(公告)日：2023-04-18

申请号：US17077626

申请日：2020-10-22

申请人： SHOWA CORPORATION

发明人： Yosuke Murakami

IPC分类号： F16F9/46 ,  F16F9/56 ,  B60G15/12 ,  B60G17/02 ,  F16F1/12 ,  B60G17/027 ,  B60G17/044 ,  B60G15/06

摘要： A hydraulic shock absorber includes a piston, a damper tube, a suspension spring, a plunger, a jack chamber, a pump case, a pump piston, a screw shaft, and a drive unit. Both end surfaces of the pump piston in a reciprocating direction are a first end surface demarcating the pump chamber, and a second end surface demarcating the gas chamber, the second end surface having a screw hole into which the screw shaft is screwed. The pump piston includes a space portion between a bottom plate defining the first end surface and the screw hole. The screw shaft has a through-hole connecting the gas chamber with the space portion.

公开(公告)号：US11472470B2

公开(公告)日：2022-10-18

申请号：US16844587

申请日：2020-04-09

申请人： Showa Corporation

发明人： Ken Isshiki ,  Eishi Ishimaru ,  Kyouichi Tagami ,  Nobuyuki Enomoto

IPC分类号： B62D5/04 ,  B62D6/00

摘要： Assist torque or reaction force torque with little unnatural feeling to a driver is applied. An ECU includes: a control amount calculation section that calculates a control amount for controlling magnitude of the assist torque or the reaction force torque with reference to steering torque applied to a steering member; and a control amount correction section that corrects the control amount calculated by the control amount calculation section with reference to a lateral G of a vehicle body, a steering angle of the steering member, and a steering angle speed of the steering member.

公开(公告)号：US11313428B2

公开(公告)日：2022-04-26

申请号：US16799289

申请日：2020-02-24

申请人： Showa Corporation

发明人： Masato Tokuhara ,  Kota Suzuki ,  Yosuke Fujikawa ,  Naoya Kuroiwa ,  Yosuke Murakami

IPC分类号： F16F9/32 ,  F16F9/19 ,  F16F9/38 ,  F16F13/00 ,  G01D5/20 ,  B60G13/08 ,  B60G15/06 ,  B62K25/28 ,  F16F9/58

摘要： A stroke sensor system includes a conductor, a coil which moves relative to the conductor and is fitted to one end side of the conductor; and a ferromagnetic body which is arranged on an end position side of the coil. A position of an end portion on one end side of the conductor in a state where a fitting ratio between the conductor and the coil is maximized is defined as the end position. The ferromagnetic body is located on an opposite side to the conductor with the coil interposed therebetween.

公开(公告)号：US11299196B2

公开(公告)日：2022-04-12

申请号：US16598379

申请日：2019-10-10

申请人： Showa Corporation

发明人： Hiroaki Kurihara

IPC分类号： B62D5/04

摘要： The failure detection device includes: a failure detection unit configured to detect failure of a torque detection unit, the torque detection unit detecting torque applied to a rotary shaft with plural torque sensors; and a controller configured to control drive of a motor such that the motor outputs continuous torque in an event that the failure detection unit detects failure of the torque detection unit, the continuous torque continuously generating torque that is, if at least one of the plural torque sensors is working properly, detectable by the at least one of the plural torque sensors.

公开(公告)号：US11155929B2

公开(公告)日：2021-10-26

申请号：US16673108

申请日：2019-11-04

申请人： Showa Corporation

发明人： Yuki Koike ,  Kenji Suzuki ,  Masami Kuramochi ,  Kenji Takahashi

IPC分类号： C25D5/02 ,  C25D7/00 ,  C25D17/08 ,  C25D7/04

摘要： The masking jig includes a contact member and a support unit. The contact member includes a through-hole allowing for insertion of a rod-like piston rod, and a deformation part around the through-hole configured to get elastically deformed by insertion of a male thread of the piston rod into the through-hole and contact the outer peripheral end face of the piston rod. The support unit supports the contact member such that the contact member moves in a direction intersecting an axial direction of the piston rod.

公开(公告)号：US11149815B2

公开(公告)日：2021-10-19

申请号：US16799450

申请日：2020-02-24

申请人： Showa Corporation

发明人： Naoya Kuroiwa ,  Yosuke Fujikawa ,  Yosuke Murakami

IPC分类号： B60G15/06 ,  F16F13/00 ,  B60G17/02 ,  B62K25/04

摘要： A shock absorber includes a hollow rod, a suspension spring arranged outside the hollow rod, a spring receiver arranged to be displaceable with respect to the hollow rod and receiving a load of the suspension spring, an adjusting screw inserted into one end side of the hollow rod and configured to adjust a position of the suspension spring by restricting movement of the spring receiver to the one end side, and a shaft member which transmits a load received by the spring receiver to the adjusting screw inside the hollow rod. An insertion portion which extends in an axial direction of the hollow rod and into which the shaft member is inserted is provided on a side surface of the hollow rod.

公开(公告)号：US20210245793A1

公开(公告)日：2021-08-12

申请号：US17052963

申请日：2019-05-30

申请人： SHOWA CORPORATION

发明人： Hiroshi Fujita ,  Hirotoshi Uchibori

IPC分类号： B62D5/00

摘要： A steer-by-wire steering device includes a first member, a second member, and stoppers. The first member is rotatable together with the input shaft, and includes a first protrusion protruding from the input shaft in the radial direction. The second member includes a second protrusion protruding on the trajectory of the first protrusion, and is rotatable together with the first member with the first protrusion being abutting the second protrusion. The stoppers are provided at respective positions capable of abutting on the trajectory of the second protrusion only when the second member is rotated by the first member.

公开(公告)号：US20210237793A1

公开(公告)日：2021-08-05

申请号：US17052956

申请日：2018-06-12

申请人： SHOWA CORPORATION

发明人： Hiroshi Fujita ,  Shun Saito

IPC分类号： B62D5/00 ,  B62D5/04

摘要： A steering angle restricting device includes an input shaft that is rotated when a steering wheel is turned, a first member that includes a first base which surrounds the input shaft and is capable of rotating together with the input shaft, and a first protrusion that protrudes in the radial direction or in the axial direction from the first base, a second member that includes a second base that surrounds the first base, and a second protrusion that protrudes from the second base and on the trajectory of the first protrusion. The second member is capable of rotating together with the first member only in the state in which the first protrusion is abutting the second protrusion, and a stopper that is provided on the trajectory of the second protrusion and is capable of restricting the turning of the steering wheel via the input shaft when the second protrusion abuts.

公开(公告)号：US20210190164A1

公开(公告)日：2021-06-24

申请号：US16332566

申请日：2017-01-16

申请人： SHOWA CORPORATION

发明人： Nobuyuki MURAGUCHI ,  Takao YAMAMOTO ,  Naoki SENOU

IPC分类号： F16F1/12 ,  F16F9/58

摘要： The rebound spring structure includes: a rebound spring; a lower rebound collar configured to hold an end on one side of the rebound spring; and an upper rebound collar configured to hold an end on the other side of the rebound spring, the rebound spring structure being positioned around a rod configured to move relative to a cylinder. The lower rebound collar is held by a piston rod. The upper rebound collar is movably fitted to the piston rod. The upper rebound collar includes a recess on an upper disk part configured to restrict movement of the rebound spring to the other side, the recess being configured to facilitate movement of the upper rebound collar in a circumferential direction of the piston rod.

公开(公告)号：US11027811B2

公开(公告)日：2021-06-08

申请号：US16675811

申请日：2019-11-06

申请人： Showa Corporation

发明人： Takahiko Saito

IPC分类号： B63H20/10 ,  B63H20/08 ,  B63H20/12

摘要： An outboard motor lifting device includes a hydraulic source, a first oil channel connecting the hydraulic source with a second chamber of a tilt cylinder, a second oil channel connecting the first oil channel with a second chamber of a trim cylinder, a third oil channel connecting the hydraulic source with a first chamber of the tilt cylinder, a check valve provided between the second chamber of the tilt cylinder and a connection position between the first and second oil channels, a fourth oil channel connected to the third oil channel, and a switch valve provided on the second oil channel and connected with the fourth oil channel. The switch valve has a connection state where communication between the first oil channel and the second chamber of the trim cylinder is closed, and communication between the fourth oil channel and the second chamber of the trim cylinder is open.