公开(公告)号：EP4501670A1

公开(公告)日：2025-02-05

申请号：EP23779147.0

申请日：2023-02-28

Applicant: NHK Spring Co., Ltd.

Inventor： IINO Shinji ,  UETSUHARA Saiji ,  SATO Takuya

IPC: B60G21/055 ,  F16B5/02 ,  B60G11/18 ,  F16F1/16 ,  F16F1/36 ,  F16F1/366

Abstract: A torsion bar unit includes a cylindrical shaped torsion bar includes a fiber-reinforced composite material and extending in a first direction, a first holding member having a first groove for holding an end part of the torsion bar, and a second holding member having a second groove for holding the end part of the torsion bar at a position opposite the first groove and sandwiching and holding the end part of the torsion bar between the first groove and the second groove by overlapping the first holding member and the second holding member.

公开(公告)号：EP4494779A1

公开(公告)日：2025-01-22

申请号：EP23770140.4

申请日：2023-02-01

Applicant: NHK Spring Co., Ltd.

Inventor： ARAKI, Yoshihito ,  FUKUOKA, Yuusuke ,  FURUGORI, Nobuyuki

IPC: B21J15/00 ,  B21J15/02 ,  B21J15/10

Abstract: A novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a device that is disposed with a novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a method for joining members using a novel punch for riveting with reduced load on a shaft of a rivet is provided. A punch for riveting according to an embodiment of present invention includes joining a first member having a convex part and a second member having a through hole fitting with the convex part by plastically deforming the convex part, wherein a contact surface with the convex part is inclined in a range of 80° to 89° with respect to a center axis.

公开(公告)号：EP4484019A1

公开(公告)日：2025-01-01

申请号：EP23780657.5

申请日：2023-03-29

Applicant: NHK Spring Co., Ltd.

Inventor： KANO, Takahiro ,  UCHIDA, Yasuhide ,  NAKANO, Shota ,  INABA, Gai

IPC: B05C11/00 ,  B05B12/00 ,  B05D1/26 ,  B05D3/00 ,  B05D7/00 ,  F16F1/02 ,  F16F1/12

Abstract: A coating material application system 1 includes: a support base 4 configured to rotatably support a coil spring W; a sensor 5 configured to measure a position of a strand of the coil spring W; a first movement device 6 configured to move the sensor 5; an application device 7; a second movement device 8 configured to move the application device 7; and a control device 3. The control device 3 includes: a support base control unit 331 configured to rotate the support base 4; a sensor control unit 332 configured to acquire a measurement value of the sensor 5; a first movement control unit 333 configured to move the sensor 5; a position-of-application calculation unit 334 configured to calculate, based on a measurement value of the sensor 5, a position of application of a coating material to the coil spring W; a second movement control unit 335 configured to move the application device 7 to a position where the application device 7 is caused to apply the coating material to the position of application; and an application device control unit 336 configured to cause the application device 7 to apply the coating material to the position of application.

公开(公告)号：EP4472042A1

公开(公告)日：2024-12-04

申请号：EP22924062.7

申请日：2022-11-18

Applicant: NHK Spring Co., Ltd.

Inventor： KOBAYASHI, Dai ,  HIROTA, Yuji

IPC: H02K15/04 ,  H02K15/085

Abstract: The present disclosure effectively prevents a segment coil from being displaced in the axial direction of a core when the terminal of a segment coil leg portion is bent in the radial direction of the core. With this manufacturing method, a stator provided with a plurality of segment coils (40), both leg portions (42A, 42B) of which are inserted into each slot of a stator core and which are overlapped in the radial direction of the stator core into multiple layers (46A, 46B, 46C) and aligned in an annular shape, is manufactured. In this manufacturing method, a tool (74) having teeth (76A, 76B, 76C) is moved by a robot manipulator and thereby the teeth (76A, 76B, 76C) are inserted between the terminals of the leg portions (42) of the respective layers (46A, 46B, 46C). The tool (74) is then turned by the robot manipulator (72) to the outside in the radial direction of the stator core by setting a clamping portion for clamping the leg portions (42) by a clamp (78) as the rotation center K1 and thereby the teeth (76A, 76B, 76C) are tilted.

公开(公告)号：EP4467688A1

公开(公告)日：2024-11-27

申请号：EP23774970.0

申请日：2023-03-22

Applicant: NHK Spring Co., Ltd.

Inventor： NOZAWA, Takahiro ,  KUROKAWA, Tomoya ,  DOI, Takashi

IPC: C25D17/08

Abstract: A surface treatment jig according to the present invention is a surface treatment jig for performing surface treatment of an exterior body of an accumulator including a bottom, a shell and a port in a state where the surface treatment jig is connected to the exterior body and supports the exterior body includes: a support portion configured to support the accumulator; and a hook portion connected with the support portion. The support portion has a shape tapered near the hook portion.

公开(公告)号：EP4450304A1

公开(公告)日：2024-10-23

申请号：EP22907232.7

申请日：2022-12-01

Applicant: NHK Spring Co., Ltd.

Inventor： TANAKA Yusuke ,  HAYASHI Takanori ,  IINO Shinji ,  SANO Takamichi

IPC: B60G11/44

Abstract: A suspension device (1) includes a pair of leaf springs (11) which extend in a front-rear direction, are disposed to be spaced apart from each other in a left-right direction, are attached to a vehicle body (B1), and are configured to support an axle (W), and a torsion bar (12) which extends in the front-rear direction, and of which one of a front end portion and a rear end portion is supported by the axle in a state where movement in the front-rear direction and the left-right direction is restricted, in which one of a front end portion and a rear end portion of the leaf spring is connected to the vehicle body to be rotatable around a first axis (O1) extending in the left-right direction, and the other of the front end portion and the rear end portion of the leaf spring is connected to the vehicle body to be swingable in the front-rear direction around an axis extending in the left-right direction, and the other of the front end portion and the rear end portion of the torsion bar is supported by the vehicle body to be movable in the front-rear direction in a state where movement in the left-right direction is restricted.

公开(公告)号：EP4446455A1

公开(公告)日：2024-10-16

申请号：EP22904062.1

申请日：2022-11-25

Applicant: NHK Spring Co., Ltd.

Inventor： YOKOYAMA, Hibiki ,  FUTAKUCHIYA, Jun ,  KANEDA, Noriyoshi ,  SONE, Michiyoshi ,  FUJII, Masahiro ,  NAMBU, Takatoshi

IPC: C23C4/02 ,  H01L21/683

Abstract: The metal mask has a body having a first surface in contact with a surface of a workpiece, a second surface opposite the first surface and a third surface between the first surface and the second surface, and an eave portion continuous with the body portion and projecting outwards from the first surface, the eave portion being arranged away from the surface of the workpiece. The third surface (side surface) of the body portion of the metal mask may have a stepped portion formed of the eave portion. The third surface (side surface) of the body part has an inclined surface that extends from the first surface to the second surface and may have a structure in which the eave portion is arranged above the inclined surface.

公开(公告)号：EP4438463A1

公开(公告)日：2024-10-02

申请号：EP22895333.7

申请日：2022-10-21

Applicant: NHK Spring Co., Ltd.

Inventor： OOSHITA, Sachio

IPC: B63H20/12 ,  B63H20/14 ,  B63H20/20 ,  F16H61/32

CPC classification number: B63H20/20 ,  F16H61/32 ,  B63H20/12 ,  B63H20/14

Abstract: An engine control apparatus (30) includes a lever member (27), an input shaft (50), a potentiometer (51), an output gear (61), a motor (70), a shift arm (85), a reduction gear mechanism (110), and a force transmission mechanism (120). The force transmission mechanism (120) includes a damper unit (121). When the lever member (27) moves in a first direction or a second direction, the motor (70) rotates based on an output of the potentiometer (51). The rotation of the motor (70) is transmitted to the shift arm (85) via the reduction gear mechanism (110). This moves the shift arm (85) to a forward-side shift positon or a backward-side shift position. When the lever member (27) is located within a predetermined angle from the neutral position, the damper unit (121) deforms in a state where the output gear (61) stops. This allows the rotation of the input axis (50).

公开(公告)号：EP4431317A1

公开(公告)日：2024-09-18

申请号：EP22892673.9

申请日：2022-11-01

Applicant: NHK Spring Co., Ltd.

Inventor： TANAKA Yusuke ,  HAYASHI Takanori ,  IINO Shinji ,  SANO Takamichi

IPC: B60G11/04 ,  B60G11/10 ,  F16F1/18 ,  F16F1/22 ,  F16F15/073

CPC classification number: B60G11/04 ,  F16F15/073 ,  F16F1/22 ,  B60G11/10 ,  F16F1/18

Abstract: A leaf spring device (1) includes a leaf spring main body (11), a first eye portion (12), a second eye portion provided (13), and a connection piece (14), the first eye portion is connected to a vehicle body (B1) to be rotatable around a first axis (01) extending in a width direction of the leaf spring main body, the second eye portion is connected to the connection piece to be rotatable around a second axis (O2) extending in the width direction, a central region of the leaf spring main body in the longitudinal direction supports an axle, the leaf spring main body is provided to be flexibly deformable upward, and a connection portion (11a) of the leaf spring main body, at which the leaf spring main body is connected to the second eye portion, is urged by an elastic restoring force of the connection piece in a direction (x 1) in which the connection portion is displaced along the longitudinal direction at an initial stage of a process in which the leaf spring main body is flexibly deformed upward.

公开(公告)号：EP4417445A3

公开(公告)日：2024-09-11

申请号：EP24186852.0

申请日：2018-03-09

Applicant: NHK Spring Co., Ltd.

Inventor： KAWAKAMI, Norihiro ,  OKUDAIRA, Yurika ,  NOGAMI, Yuushi

IPC: B21D7/024 ,  B60G21/055 ,  B21D7/02

CPC classification number: B21D7/024 ,  B60G21/055 ,  B21D53/88 ,  B60G2202/13520130101 ,  B60G2206/01220130101 ,  B60G2206/42720130101 ,  B60G2206/72420130101 ,  B60G2206/810320130101 ,  F16F1/14 ,  F16F2226/0420130101

Abstract: A hollow stabilizer disposed in a vehicle suspension mechanism part comprises a torsion part (20); a bent part (21, 22) continuous with the torsion part (20); and an arm part (23, 24) continuous with the bent part (21, 22), and including, when a center of bending inside is 0° and a center of bending outside is 180° in a cross section in a pipe radial direction of the bent part (21, 22), eight regions (S1 to S8) defined in a circumferential direction of the cross section.