公开(公告)号：US10654443B2

公开(公告)日：2020-05-19

申请号：US15738345

申请日：2016-06-24

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Yuya Nagata ,  Takahiro Osaki ,  Takuhiro Saito ,  Tomonari Umakoshi

IPC: B60R22/36 ,  B60R22/46

Abstract: A webbing take-up device includes clutch weights. The clutch weights are supported at the base and include engaging portions. The clutch weights move to a rotation diameter direction outer side when the base is rotated, and are capable of transmitting rotary force applied to the base to the spool. The webbing take-up device is provided with a stopper that is capable of relative rotating relative to the base and that is provided with engaged holes, each including an allowing portion and a restricting portion. The allowing portions allow movement of the engaging portions to the rotation diameter direction outer side when the base is rotating to one side. The restricting portions restrict movement of the engaging portions to the rotation diameter direction outer side when the base is rotating to the other side. The restricting portions are formed integrally with the allowing portions.

公开(公告)号：US10471929B2

公开(公告)日：2019-11-12

申请号：US15641790

申请日：2017-07-05

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Tomonari Umakoshi ,  Takuhiro Saito ,  Yuya Nagata ,  Takahiro Osaki

IPC: B60R22/34 ,  B60R22/40 ,  B60R22/46

Abstract: A webbing take-up device includes a spool on which a webbing worn by an occupant is taken up, and a motor that includes a rotation shaft and a first boss portion disposed coaxially with the rotation shaft. The webbing take-up device further includes an A-gear that is fixed to the rotation shaft, and a B-gear that meshes together with the A-gear and that is rotated by the A-gear being rotated such that the spool is rotated. The webbing take-up device further includes a gear housing that includes a B-gear support portion on which the B-gear is supported, and an engaged hole engaged by the first boss portion so as to have tightening margin therebetween, and to which the motor is fixed in a state in which the first boss portion has engaged with the engaged hole.

公开(公告)号：US10005424B2

公开(公告)日：2018-06-26

申请号：US15134936

申请日：2016-04-21

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Takahiro Osaki ,  Tomonari Umakoshi ,  Yuya Nagata ,  Takuhiro Saito

IPC: B60R22/44 ,  B60R22/46

CPC classification number: B60R22/44 ,  B60R22/46 ,  B60R2022/4453 ,  B60R2022/4466 ,  B60R2022/4666 ,  B60R2022/468

Abstract: A webbing take-up device includes a second clutch that transmits rotation of a motor to a spool. The second clutch includes a base including a first spring catch portion, a clutch gear, a clutch spring including a coil portion, having an end portion at one side caught to the first spring catch portion, and a lever that includes a second spring catch portion catching an end portion at another side of the clutch spring, and that enlarges diameter of the coil portion to abut the clutch gear by moving the end portion at the another side of the clutch spring toward one side in the circumferential direction of the base. A terminal end of the end portion at the one side of the clutch spring abuts the first spring catch portion when the lever is rotated toward the one side in the circumferential direction of the base.

公开(公告)号：US10464523B2

公开(公告)日：2019-11-05

申请号：US15629998

申请日：2017-06-22

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Takahiro Osaki ,  Yuya Nagata ,  Tomonari Umakoshi ,  Takuhiro Saito

IPC: B60R22/44 ,  B60R22/46 ,  B60R22/28 ,  B60R22/34

Abstract: In a webbing take-up device, an angle from one end portion toward another end portion of a second clutch spring in a direction of winding of a coil portion from the one end portion toward the another end portion of the second clutch spring is 270°. Therefore, in a case in which the one end portion of the second clutch spring is rotated toward a side of the direction of the winding of the coil portion, one end side portion of the second clutch spring is displaced so as to bulge-out toward a side opposite to a side toward which another end side portion bulges-out.

公开(公告)号：US10434979B2

公开(公告)日：2019-10-08

申请号：US15641862

申请日：2017-07-05

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Tomonari Umakoshi ,  Takuhiro Saito ,  Yuya Nagata ,  Takahiro Osaki

IPC: B60R22/34 ,  B60R22/405 ,  B60R22/40 ,  B60R22/46

Abstract: A webbing take-up device includes a spool, a motor that includes a rotation shaft, and an A-gear, a B-gear, a holder gear, an input gear, a clutch gear, an idle gear, and a spool gear that transmit rotation of the rotation shaft to the spool. The webbing take-up device further includes clutch weights that are moved toward a rotation-radial direction outside by being rotated together with the input gear such that rotation force of the input gear is transmitted to the clutch gear. Moreover, axial centers of rotations of the A-gear, the B-gear, the input gear and the clutch gear, and the idle gear are disposed between an axial center of rotation of the holder gear and an axial center of rotation of the spool gear.

公开(公告)号：US09616845B2

公开(公告)日：2017-04-11

申请号：US14638453

申请日：2015-03-04

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Atsushi Tatsuma ,  Takuhiro Saito ,  Yoshimichi Kaneko ,  Yuya Nagata

IPC: B60R22/46

CPC classification number: B60R22/46 ,  B60R2022/4666 ,  B60R2022/468

Abstract: A webbing take-up device is obtained capable of suppressing slight axial direction movement of a gear configuring a mechanism to release overload. A large gear portion of a two-step gear configuring an overload release mechanism of the webbing take-up device is sandwiched between a small gear portion end face of a small gear portion and a bottom portion of a rotor. This thereby enables rattling which is slight axial direction movement of the large gear portion to be suppressed.

公开(公告)号：US09598048B2

公开(公告)日：2017-03-21

申请号：US15049794

申请日：2016-02-22

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Tomonari Umakoshi ,  Masato Yatsuhashi ,  Hisatoshi Ishikawa ,  Yuya Nagata ,  Takahiro Osaki ,  Fumihito Komeno

IPC: B60R22/46 ,  B60R22/48

CPC classification number: B60R22/46 ,  B60R2022/4666 ,  B60R2022/4816

Abstract: There is provided a webbing take-up device including (1) a take-up shaft, (2) an attachment and detachment detection unit, (3) a motor, (4) a first transmission unit that transmits rotation of the output shaft in a first direction to the take-up shaft, (5) a second transmission unit that transmits rotation of the output shaft in a second direction to the take-up shaft, and that also transmits the output torque of the output shaft to the take-up shaft such that the take-up torque of the take-up shaft does not reach a preset first torque, and (6) a control unit that, in cases in which engagement between a tongue and a buckle has been detected, controls a drive voltage and a drive current such that the output shaft rotates in the first direction, and the take-up torque of the take-up shaft reaches a second torque higher than the first torque.

公开(公告)号：US10752205B2

公开(公告)日：2020-08-25

申请号：US15995592

申请日：2018-06-01

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Yuya Nagata ,  Takuhiro Saito ,  Tomonari Umakoshi ,  Takahiro Osaki

IPC: B60R22/34

Abstract: A webbing take-up device that includes a spool that is rotated in a take-up direction to take up webbing worn by an occupant and that is rotated in a pull-out direction by the webbing being pulled out, and a frame that rotatably supports the spool. The frame includes a fixed stay portion that is fixed to a vehicle body, and a rotation stop stay portion that is disposed spaced apart from the vehicle body and that by being engaged with the vehicle body is restricted from rotational displacement relative to the fixed stay portion.

公开(公告)号：US10744974B2

公开(公告)日：2020-08-18

申请号：US16014500

申请日：2018-06-21

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Takamasa Sato ,  Takahiro Osaki ,  Yuya Nagata ,  Tomonari Umakoshi ,  Takuhiro Saito

IPC: B60R22/46 ,  B60R22/34

Abstract: In a webbing take-up device, a cover member is disposed on the inner side of a second peripheral wall of a second housing member. Due thereto, an outer side surface of a third peripheral wall of the cover member and an inner side surface of the second peripheral wall of the second housing member oppose each other in a radial direction of urging, which is a radial direction of rotation of rotational urging force of a flat spiral spring, so displacement of the cover member outward in the radial direction of urging can be suppressed.

公开(公告)号：US10457248B2

公开(公告)日：2019-10-29

申请号：US15641923

申请日：2017-07-05

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Tomonari Umakoshi ,  Takuhiro Saito ,  Yuya Nagata ,  Takahiro Osaki

IPC: B60R22/34 ,  B60R22/40 ,  B60R22/46

Abstract: A webbing take-up device includes a spool on which a webbing worn by an occupant is taken up, and a motor that includes a rotor with a rotation shaft and a motor housing covering part of the rotor, the rotor being urged toward one axial direction side of the rotation shaft with respect to the motor housing. The webbing take-up device further includes a second transmission mechanism that includes an A-gear fixed to the rotation shaft, and a B-gear meshed together with the A-gear and rotated by the A-gear being rotated toward one side together with the rotation shaft such that the spool is rotated. A helix angle of respective outer teeth of the A-gear is set such that an axial direction force toward the one axial direction side of the rotation shaft acts on the A-gear when the rotation shaft is rotated toward the one side.