公开(公告)号：US11958125B2

公开(公告)日：2024-04-16

申请号：US17278213

申请日：2019-09-17

Applicant: KYB Corporation

Inventor： Yasuyuki Nagai

IPC: B23K20/12 ,  F16B7/00 ,  B23K101/06

CPC classification number: B23K20/12 ,  F16B7/00 ,  B23K2101/06

Abstract: A manufacturing method includes a joining step of abutting and joining an end surface of a tube main body and a projecting portion of a head member by frictional welding in a state in which a through hole of the tube main body and the projecting portion of the head member are fitted with a fitting clearance. In the joining step, flow material which is practically flowed from an end surface of the tube main body and the flange portion of the head member is filled in the fitting clearance from the root side until the tip portion is located within the range in the direction of the rotation axis, thereby joining between a non-contact portion and the tube main body and between an inclined inner peripheral surface of the tube main body and an outer peripheral surface of the projecting portion by the flow material.

公开(公告)号：US11929660B2

公开(公告)日：2024-03-12

申请号：US17614095

申请日：2020-03-26

Applicant: KYB CORPORATION

Inventor： Shun Matsuda

IPC: H02K5/22 ,  H02K3/50 ,  H02K9/22

CPC classification number: H02K5/225 ,  H02K3/50 ,  H02K9/227 ,  H02K2203/09

Abstract: Press-fitting the bus-bar into the connection terminal while improving reliability.
In the rotary electric machine, the connection terminal comprises a terminal fixing portion fixed to the circuit board and held by the terminal holder, and a terminal connection portion arranged on the other side in the first direction with respect to the terminal fixing portion and for press-fitting the bus-bar. The terminal connection portion is arranged separately from the circuit board on the lower side. In the connection terminal, the connecting portion connecting the terminal fixing portion and the terminal connection portion is configured to be bendable and deformable vertically. This allows the terminal connection portion to be displaced when a press-fitting load above predetermined value is input to the terminal connection portion. Thus, since the press-fitting load is used as a load that bends and deforms the connecting portion, the load transmitted to the terminal fixing portion is reducible.

公开(公告)号：US11892055B2

公开(公告)日：2024-02-06

申请号：US17277494

申请日：2019-08-01

Applicant: KYB Corporation

Inventor： Tomomi Hayase ,  Tetsuo Arahata ,  Seiji Iwahara ,  Kouhei Tomita

IPC: F16F9/36 ,  F16F9/18 ,  F16F9/06 ,  F16F9/32

CPC classification number: F16F9/369 ,  F16F9/185 ,  F16F9/062 ,  F16F9/064 ,  F16F9/3235 ,  F16F2222/12 ,  F16F2226/04 ,  F16F2230/30 ,  F16F2232/08 ,  F16F2234/02

Abstract: Provided is a shock absorber capable of improving the dimensional quality and ensuring the sealing performance of a seal ring. The shock absorber includes a cylinder, an outer tube, an intermediate tube, and a discharge passage defined between the intermediate tube and the cylinder, a reservoir defined between the intermediate tube and the outer tube. The intermediate tube includes, on its inner circumferential surface, a groove having a concave shape in cross section to be capable of accommodating a seal ring that closes the discharge passage. A relationship of θ1

公开(公告)号：US11879517B2

公开(公告)日：2024-01-23

申请号：US17434960

申请日：2020-02-28

Applicant: KYB CORPORATION

Inventor： Sodai Shimauchi ,  Koichiro Awano ,  Masashi Uemura

IPC: F16F9/46 ,  F16F9/10 ,  F16F9/32 ,  F16F9/34 ,  F16F9/44 ,  F16K3/26

CPC classification number: F16F9/103 ,  F16F9/3214 ,  F16F9/3235 ,  F16F9/34 ,  F16F9/446 ,  F16K3/26

Abstract: A shock absorber includes a hard side damping element that imparts a resistance to a flow of liquid moving between an extension side chamber and a compression side chamber, a solenoid valve configured to change an aperture area of a bypass passage that bypasses the hard side damping element and communicates with the extension side chamber and the compression side chamber, a soft side damping element provided in series with the solenoid valve in the bypass passage, and a tank connected to the compression side chamber. The hard side damping element includes an orifice and leaf valves provided in parallel with the orifice. The soft side damping element includes an orifice having a larger aperture area than the orifice.

公开(公告)号：US20230375065A1

公开(公告)日：2023-11-23

申请号：US18031526

申请日：2021-11-30

Applicant: KYB Corporation

Inventor： Yasunori KOBAYASHI ,  Kenshirou ANAI

IPC: F16F9/19 ,  F16F9/36 ,  F16F9/32

CPC classification number: F16F9/19 ,  F16F9/36 ,  F16F9/3214

Abstract: A shock absorber in the present invention includes: a cylinder; a rod guide fitted to the inner circumference of an end portion of the cylinder; a piston rod movably inserted into the cylinder; a piston connected to the piston rod; and a seal member stacked on the rod guide and through which the piston rod is inserted, wherein the seal member includes: an annular seal case having an annular concave portion on the inner circumference; a seal ring including a base portion and a lip and accommodated in the annular concave portion; an annular seal holder stacked on the rod guide side of the base portion, accommodated in the annular concave portion, and supporting the outer circumference of the seal ring to suppress the diameter enlargement of the lip; and a stopper mounted on the seal case and preventing the seal holder and the seal ring from falling off.

公开(公告)号：US11820305B2

公开(公告)日：2023-11-21

申请号：US17756861

申请日：2020-10-13

Applicant: KYB Corporation

Inventor： Tsuyoshi Hironaka ,  Midori Nagashima ,  Ken Tsukui ,  Kazuya Murota

IPC: F15B11/17 ,  B60R16/08 ,  F16H61/66

CPC classification number: B60R16/08 ,  F15B11/17 ,  F16H61/66

Abstract: A working fluid supply system is provided with: a first oil pump and a second oil pump driven by an engine; a switching valve configured to cause a discharge passage of the second oil pump to communicate with at least one of a supply passage and a first drain passage; and a controller configured to switch the switching valve. The controller is configured to switch the switching valve by spending a switching time that is set in accordance with a degree of pressure variation predicted to be caused in the supply passage when the switching valve is switched instantaneously.

公开(公告)号：US20230350692A1

公开(公告)日：2023-11-02

申请号：US18164437

申请日：2023-02-03

Applicant: KYB Corporation

Inventor： Kazunori KENJO ,  Hiroshi YOSHIDA

IPC: G06F9/4401

CPC classification number: G06F9/4403

Abstract: An arithmetic device includes a communication unit that communicates with another instrument, a first activation unit to which a first address is set, and a second activation unit to which a second address is set and at which a computer program can be updated by the first activation unit. When having determined that information of update that can be performed by the first activation unit is included in information acquired by the communication unit, the second activation unit transmits the second address to the first activation unit. When having received the second address from the second activation unit, the first activation unit changes the first address to the second address, establishes communication with the other instrument based on the second address, and performs update at the second activation unit based on update information transmitted from the other instrument.

公开(公告)号：US11801722B2

公开(公告)日：2023-10-31

申请号：US17612318

申请日：2020-05-20

Applicant: KYB Corporation

Inventor： Makoto Hanai ,  Takuhiro Kondo

IPC: B60G11/08 ,  B60G7/04 ,  B60G3/10 ,  B60G13/10

CPC classification number: B60G7/04 ,  B60G3/10 ,  B60G11/08 ,  B60G13/10

Abstract: A suspension device includes a leaf spring and a buffer. The leaf spring applies an elastic force for relatively moving an unsprung member in a predetermined direction with respect to a body (sprung member) of a vehicle. The buffer includes a first expansion/contraction member, a second expansion/contraction member, an intermediate member, and a damping passage. The first and second expansion/contraction members form first and second gas chambers filled with gas therein and are expandable and contractible. An upper end and a lower end of the first and second expansion/contraction members are connected to the body. The intermediate member couples the first and second expansion/contraction members and is connected to the leaf spring. The damping passage allows the first and second gas chambers to communicate with each other, and applies resistance to flow of flowing gas. When one of the first and second expansion/contraction members expands, the other contracts.

公开(公告)号：US20230331054A1

公开(公告)日：2023-10-19

申请号：US18023983

申请日：2021-10-07

Applicant: KYB Corporation

Inventor： Kazumasa TANAKA ,  Naoki YASUKOUCHI ,  Dawei LI

IPC: B60G13/00 ,  B60G13/08

CPC classification number: B60G13/005 ,  B60G13/08

Abstract: An object of the present invention is to provide a shock absorber that can use a single bracket regardless of difference in thickness of a knuckle bracket. A shock absorber according to the present invention includes: a shock absorber main body having an outer shell and a rod movably inserted into the outer shell; a knuckle bracket attached to an outer circumference on a bottom end side of the outer shell; and a bracket including a curved piece curved along a circumferential direction of an outer circumference of the outer shell and an attachment piece extending from the curved piece and to which a mounting component is attached, the curved piece including a bracket attached to the outer shell by being welded to the outer circumference of the outer shell and within a range from a top end to a bottom end of the knuckle bracket in an axial direction of the outer shell.

公开(公告)号：US11649871B2

公开(公告)日：2023-05-16

申请号：US17689628

申请日：2022-03-08

Applicant: KYB CORPORATION

Inventor： Yoshihiro Shibata ,  Yasuhiro Inagaki

IPC: F16F9/32 ,  B60G13/00 ,  F16F9/54 ,  B23K101/00 ,  B60G13/08

CPC classification number: F16F9/3235 ,  B60G13/005 ,  F16F9/32 ,  F16F9/54 ,  B23K2101/006 ,  B60G13/08 ,  B60G2204/129 ,  B60G2206/41 ,  B60G2206/8201 ,  F16F2226/048

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.