公开(公告)号：US20130221634A1

公开(公告)日：2013-08-29

申请号：US13720354

申请日：2012-12-19

Applicant: Showa Corporation

Inventor： Yasuhiro AOKI

IPC: B62K25/08

CPC classification number: B62K25/08 ,  F16F9/0218 ,  F16F9/0236

Abstract: Provided is a front fork spring leg capable of stably maintaining air spring characteristics. The front fork spring leg has an inward-facing seal member, an outward-facing seal member, and a piston ring arranged on an outer periphery of a guide of a guide rod sequentially in this order along an axial direction of the guide from the side close to an inner air spring chamber toward the side far from the same. The inward-facing seal member has a lip which is slidably in contact with the inner periphery of the guide cylinder, with this lip being oriented toward the inner air spring chamber while the outward-facing seal member has a lip which is slidably in contact with the inner periphery of the guide cylinder, with this lip being oriented in the opposite direction to the inner air spring chamber.

Abstract translation: 提供能够稳定地保持空气弹簧特性的前叉弹簧腿。 前叉弹簧腿具有向内的密封构件，朝外的密封构件和活塞环，该活塞环沿着导向件的轴向依次沿着导向件的引导件的外周依次地从侧面 靠近内部空气弹簧室朝向远离其的一侧。 向内密封构件具有可滑动地与导向筒的内周接触的唇部，该唇部朝向内部空气弹簧室定向，同时朝外的密封构件具有可滑动地与 引导筒的内周，其中该唇部沿与内部空气弹簧室相反的方向定向。

公开(公告)号：US20130192940A1

公开(公告)日：2013-08-01

申请号：US13720282

申请日：2012-12-19

Applicant: SHOWA CORPORATION

Inventor： Kei FURUKAWA ,  Kazuya INOUE

IPC: F16F9/516

CPC classification number: F16F9/516 ,  F16F9/0218 ,  F16F9/346

Abstract: A tubular piston mounted at one end of a rod accommodated inside a cylinder and partitioning the space inside the cylinder includes first groove and second groove recessed from an outer circumferential surface thereof and aligned side by side along a centerline direction of the cylinder, and a communication passage communicating an end face on the side of an opening in the centerline direction of the cylinder with one of the two grooves (second groove) formed on the side of the opening. A rubber-made annular sealing member having an outer circumferential surface contacting an inner circumferential surface of the cylinder is fitted in the second groove. A resin-made restrictor ring that is a C-shaped member fitted in the first groove has an outer circumferential surface positioned closer to the inner circumferential surface of the cylinder than the outer circumferential surface of the piston.

Abstract translation: 安装在容纳在气缸内的杆的一端并且分隔气缸内的空间的管状活塞包括从其外周表面凹陷的第一凹槽和第二凹槽，并沿着圆柱体的中心线方向并排排列，并且连通 通道在开口的一侧形成的两个凹槽（第二凹槽）中的一个之间将气缸的中心线方向上的开口侧的端面连通。 具有与圆筒的内周面接触的外周面的橡胶制环状密封构件嵌合在第二槽中。 装配在第一槽中的C形构件的树脂制的限制环具有比活塞的外周面更靠近缸的内周面的外周面。

公开(公告)号：US12030581B2

公开(公告)日：2024-07-09

申请号：US17031434

申请日：2020-09-24

Applicant: Showa Corporation

Inventor： Hiroyuki Miyata

IPC: F16F1/12 ,  B62K25/04 ,  F16F9/34 ,  F16F9/46 ,  F16F9/56

CPC classification number: B62K25/04 ,  F16F9/34 ,  F16F9/46 ,  F16F9/56 ,  B62K2025/045

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.

公开(公告)号：US11796025B2

公开(公告)日：2023-10-24

申请号：US17031167

申请日：2020-09-24

Applicant: Showa Corporation

Inventor： Yosuke Fujikawa ,  Yosuke Murakami

IPC: F16F9/34 ,  F16F9/50 ,  F16F9/18 ,  B62K25/28 ,  F16F9/348 ,  F16K11/10 ,  B62K25/04 ,  F16F9/06 ,  F16F9/32 ,  F16F9/346 ,  F16F9/58

CPC classification number: F16F9/348 ,  F16F9/18 ,  F16F9/50 ,  F16K11/105 ,  B62K25/283 ,  B62K2025/044 ,  F16F9/065 ,  F16F9/3257 ,  F16F9/346 ,  F16F9/58 ,  F16F9/585 ,  F16F2222/12 ,  F16F2224/025 ,  F16F2228/066 ,  F16F2232/08 ,  F16F2234/02

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 therein a flow path penetrating in the axial direction, and a 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 tip portion which extends further on the cylindrical body side than the step portion. An outer diameter of the tip portion is smaller than an outer diameter of the 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.

公开(公告)号：US11661105B2

公开(公告)日：2023-05-30

申请号：US16895358

申请日：2020-06-08

Applicant: SHOWA CORPORATION

Inventor： Akihiro Kogure

IPC: B62D6/00 ,  B62D5/04 ,  B62D3/12 ,  B62D5/00

CPC classification number: B62D6/002 ,  B62D5/046 ,  B62D5/0421 ,  B62D3/12 ,  B62D5/006 ,  B62D5/0454 ,  B62D6/008

Abstract: A steering device includes: an electric motor configured to apply a driving force to cause a wheel of a vehicle to roll; a transmission unit configured to transmit the driving force of the electric motor to the wheel; an input determination unit 221 configured to determine whether an excessive external force equal to or greater than a predetermined force is input, or likely to be input, to the transmission unit via the wheel while the electric motor is applying the driving force; and a final target current setting unit 23 configured to, in response to the input determination unit 221 determining that the excessive force is input, or likely to be input, to the transmission unit, reduce the driving force of the electric motor so that a load on the transmission unit does not exceed an upper limit that is preset according to strength of the transmission unit.

公开(公告)号：US11565564B2

公开(公告)日：2023-01-31

申请号：US16782629

申请日：2020-02-05

Applicant: SHOWA CORPORATION

Inventor： Yosuke Murakami

IPC: B60G17/0165 ,  B62J45/20 ,  B62K25/04

Abstract: A suspension device includes: a damping device that damps a force generated between a vehicle body and a wheel of a vehicle; a determination unit that determines whether the vehicle is jumping, using an acceleration of the vehicle in a front-rear direction, an acceleration of the vehicle in a left-right direction, and an acceleration of the vehicle in a vertical direction; 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 the determination unit does not determine that the vehicle is jumping, when the determination unit determines that the vehicle is jumping.

公开(公告)号：US11505243B2

公开(公告)日：2022-11-22

申请号：US16710956

申请日：2019-12-11

Applicant: Showa Corporation

Inventor： Kosuke Sano ,  Junya Hirata

IPC: B62D6/10 ,  B62D5/04 ,  B62D15/02 ,  H02P6/16

Abstract: A steering control device includes: an electric motor configured to apply an assist force to steering of a steering wheel; a torque sensor configured to detect steering torque of the steering wheel; a base target current setting unit configured to set a base driving force of the electric motor on the basis of the steering torque detected by the torque sensor; and an addition determination unit configured to determine whether a driving force larger than the base driving force is to be set, on the basis of a rotation speed of the electric motor.

公开(公告)号：US11352095B2

公开(公告)日：2022-06-07

申请号：US16321371

申请日：2017-01-31

Applicant: Showa Corporation

Inventor： Yasuhiro Aoki

IPC: B62K25/08 ,  F16F9/44 ,  F16F9/58 ,  F16F9/32

Abstract: A front fork includes a first shock absorber and a second shock absorber disposed respectively on both sides of a vehicle wheel. The first shock absorber includes a set of tubes configured to slide relative to each other; damping force generation parts configured to generate a damping force in accordance with the sliding of the tubes; and a spring configured to urge the set of tubes in a stretching direction. The second shock absorber includes a set of tubes configured to slide relative to each other; and a coil spring configured to urge the set of tubes in the stretching direction.

公开(公告)号：US11293509B2

公开(公告)日：2022-04-05

申请号：US16332566

申请日：2017-01-16

Applicant: SHOWA CORPORATION

Inventor： Nobuyuki Muraguchi ,  Takao Yamamoto ,  Naoki Senou

IPC: F16F1/12 ,  F16F9/58

Abstract: 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：US11247685B2

公开(公告)日：2022-02-15

申请号：US16538371

申请日：2019-08-12

Applicant: SHOWA CORPORATION

Inventor： Ken Isshiki ,  Eishi Ishimaru ,  Kyouichi Tagami ,  Katsutoshi Yokoi

IPC: B60W40/06 ,  B62D6/00 ,  B60G17/06 ,  B60G17/0165 ,  B60G17/016

Abstract: A road surface condition is determined appropriately. A road surface determining section (84) configured to determine a road surface condition with reference to a wheel speed signal indicative of wheel speeds includes a band-stop filter (841) which acts on the wheel speed signal and has a cutoff frequency band which is changed in accordance with the wheel speed signal.