公开(公告)号：US20200032778A1

公开(公告)日：2020-01-30

申请号：US16491404

申请日：2018-03-13

Applicant: KYB Corporation

Inventor： Takanori INADA

IPC: F04B1/26 ,  F15B13/043 ,  F16H61/431

Abstract: A servo regulator includes servo piston, a first pressure chamber and a second pressure chamber, a spool, a biasing member provided on an outer periphery of the spool and configured to bias the spool, a first support portion configured to support one end portion of the biasing member when the spool is moved to a first direction where the pressure in the first pressure chamber is raised, and a second support portion configured to support other end portion of the biasing member when the spool is moved to a second direction where the pressure in the second pressure chamber is raised, wherein at least one of the first support portion and the second support portion is detachably provided on the spool.

公开(公告)号：US10544852B2

公开(公告)日：2020-01-28

申请号：US15528957

申请日：2015-11-12

Applicant: KYB Corporation

Inventor： Yasuhiro Inagaki ,  Atsushi Sakuta

IPC: F16F9/516 ,  F16F9/34 ,  F16F9/46 ,  F16F9/44 ,  B60G17/06

Abstract: A damping valve includes a valve disc, a ring-shaped leaf valve, and a biasing mechanism. The valve disc includes a passage and a valve seat. The valve seat surrounds an exit end of the passage. The leaf valve is stacked on the valve disc. The leaf valve separates from and is seated on the valve seat to open and close the passage. The biasing mechanism causes a variable biasing force to act on the leaf valve to the valve disc side. The entire leaf valve is configured to axially retreat with respect to the valve disc. A clearance is formed between the leaf valve and the valve seat in a state in which the leaf valve is stacked on the valve disc with no load.

公开(公告)号：US20200023706A1

公开(公告)日：2020-01-23

申请号：US16491384

申请日：2018-07-13

Applicant: KYB CORPORATION

Inventor： Hiroyuki KOJIMA ,  Koichiro AWANO

IPC: B60G17/0185 ,  H01F7/18 ,  H03K17/0812

Abstract: A drive circuit anomaly diagnosing device of the present invention performs an anomaly diagnosis on a drive circuit including a power supply line on which a solenoid is disposed midway, a main switch disposed on the power source side relative to the solenoid, a first diode disposed on a protection line connecting a point between the main switch and the solenoid to ground with a forward direction corresponding to a direction from the ground side to the power source side, and a first capacitor interposed on a first line connecting a point between the protection line and the solenoid to the ground midway on the power supply line, the drive circuit being configured to supply power to the solenoid, on the basis of a current detected by a first current sensor disposed upstream of the main switch on the power supply line.

公开(公告)号：US10532622B2

公开(公告)日：2020-01-14

申请号：US15562413

申请日：2016-03-30

Applicant: KYB Corporation ,  HONDA MOTOR CO., LTD. ,  Sumitomo Riko Company Limited

Inventor： Masahiro Miwa ,  Kazuma Ando ,  Yasutaka Ohta

IPC: B60G11/16 ,  F16F1/12 ,  B60G15/06 ,  F16F9/36

Abstract: A rubber sheet includes: a main body formed into an arc shape or an annular shape; a seating portion formed into a groove shape at the main body, a coil spring being configured to be seated on the seating portion; and a deformation restricting portion formed to project outside in a radial direction from an outer periphery of the main body at a position, on which a terminal portion of the coil spring is seated, of the main body, the deformation restricting portion being configured to restrict deformation of the main body.

公开(公告)号：US10451138B2

公开(公告)日：2019-10-22

申请号：US15326087

申请日：2015-07-15

Applicant: KYB Corporation

Inventor： Isao Kuroiwa

IPC: F16F9/512 ,  F16F9/348 ,  F16F9/516

Abstract: A shock absorber includes an expansion-side passage and a contraction-side passage arranged alternately side by side along a circumferential direction, seats provided to surround an outlet port of the expansion-side passage or an outlet port of the contraction-side passage, and valve bodies. The seats has an arc-shaped outer seat portion, middle seat portions extending from respective both ends in a circumferential direction of the outer seat portion toward a center axis side of the piston, and an inner seat portion extending from center axis side ends of the middle seat portions oppositely to the outer seat portion side in a circumferential direction to connect the neighboring middle seat portions. The inner seat portion is placed on a straight line that connects the center axis side ends of the middle seat portions.

公开(公告)号：US20190309816A1

公开(公告)日：2019-10-10

申请号：US16309008

申请日：2017-07-31

Applicant: KYB CORPORATION

Inventor： Yoshihiro SHIBATA ,  Yasuhiro INAGAKI

IPC: F16F9/32 ,  F16F9/54 ,  B60G13/00

Abstract: A bracket of a cylinder device includes: a tubular portion having a C-shaped cross section, holding an outer periphery of the outer shell, and having a slit in a front portion; and a pair of mounting portions and protruding outward in the radial direction from both ends of the tubular portion in the circumferential direction. The tubular portion includes a hole formed to permit insertion of the protrusion, from at least one side portion to the back portion of the tubular portion.

公开(公告)号：US10370047B2

公开(公告)日：2019-08-06

申请号：US15422430

申请日：2017-02-01

Applicant: KYB Corporation

Inventor： Yoshikazu Hirota ,  Chikashi Imoto ,  Kazumi Ito ,  Junichiro Sugimoto ,  Eishin Noguchi ,  Kaori Kawabata

IPC: F16J15/34 ,  B62D55/088 ,  F16J15/00 ,  F16J15/3204

Abstract: A seal structure is provided to block a clearance between a rotational casing and a fixed housing for driving a crawler of a crawler vehicle. A seal ring is held in a first annular holding groove provided in the fixed housing together with a first O-ring that biases the seal ring toward the outside of the first holding groove. A second holding groove having an opening facing the first holding groove is provided in the rotational casing to hold a slide ring having a higher rigidity than that of the seal ring together with a second O-ring that biases the slide ring toward the seal ring. A foreign object such as mud is thereby prevented from invading a gear chamber without increasing a frictional loss.

公开(公告)号：US20190234431A1

公开(公告)日：2019-08-01

申请号：US16312323

申请日：2017-06-26

Applicant: KYB Corporation

Inventor： Daisuke TANAKA

IPC: F15B11/044 ,  F15B11/08

Abstract: A cylinder driving device includes: an electric motor; a pump; a main passage and a main passage; a hydraulic cylinder; an operation check valve and an operation check valve; and a restriction valve and a restriction valve configured to restrict a flow of the working oil directed to the operation check valve and an operation check valve, wherein an opening area of the restriction valve and the restriction valve is reduced in response to an increase in a flow rate of the working oil discharged from the hydraulic cylinder to the main passage and a main passage.

公开(公告)号：US20190226548A1

公开(公告)日：2019-07-25

申请号：US16333083

申请日：2017-09-11

Applicant: KYB Corporation

Inventor： Masahiro MIWA ,  Hideaki TAKEUCHI

IPC: F16F9/36 ,  F16F9/32

Abstract: A shock absorber includes a cylinder tube, a damping-force generating portion, a rod, an annular guide portion, and an annular support portion provided to project from an inner circumferential surface of the cylinder tube, the support portion being configured to support the guide portion, wherein the guide portion has an opposing surface formed to oppose the inner circumferential surface of the cylinder tube, and a contacting surface in contact with the support portion, the contacting surface being inclined with respect to the opposing surface, and the contacting surface is formed so as to be, as a whole, inclined with respect to the opposing surface.

公开(公告)号：US20190225297A1

公开(公告)日：2019-07-25

申请号：US16089001

申请日：2017-03-21

Applicant: KYB Corporation

Inventor： Takahisa MOCHIZUKI

IPC: B62K25/10 ,  B60G17/027

Abstract: A shock absorber includes a spring bearing that supports one end of the suspension spring which biases the shock absorber main body in an extension direction; a jack configured to change an axial position of the spring bearing; a ring-shaped adapter freely fitted to an outer periphery of the spring bearing; a restricting portion disposed between the spring bearing and the adapter, the restricting portion restricting a movement of the adapter in an axial direction with respect to the spring bearing; a rotation stop member mounted on the shock absorber main body to stop a rotation of the adapter; and a stroke sensor disposed between the adapter and the rotation stop member.