公开(公告)号：US12151642B2

公开(公告)日：2024-11-26

申请号：US17796114

申请日：2021-01-12

Applicant: KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

Inventor： Chihiro Sano ,  Motoki Sugiyama

IPC: B60R22/40 ,  B60R22/343 ,  B60R22/405

Abstract: A webbing winding device includes a spool, a sensor lever, and a solenoid. The sensor lever is displaceable between the first position and the second position. In a state where the sensor lever is disposed at the first position, the rotation in the drawing-out direction of the spool is enabled, and in a state where the sensor lever is disposed at the second position, the rotation in the drawing-out direction of the spool is locked. When the solenoid is actuated, a part of the sensor lever is attracted and the sensor lever is displaced from the first position to the second position. The center of gravity of the sensor lever is set so that the sensor lever is displaced toward the second position when negative acceleration with respect to the direction in which a part of the sensor lever is attracted to the solenoid is generated in the sensor lever.

公开(公告)号：US20220289135A1

公开(公告)日：2022-09-15

申请号：US17753230

申请日：2020-08-27

Applicant: Autoliv Development AB

Inventor： Chan Ki MOON ,  Hyeon Kyu KANG ,  Ho Beom YOON ,  Yong Kwan SONG

IPC: B60R22/40 ,  B60R22/34

Abstract: A seat belt retractor including a fixed frame connected to a vehicle body; a spool mounted on the fixed frame so as to be rotatable about a shaft arranged in a predetermined direction, in which a seat belt is wound around the spool; a control disc connected to the shaft about which the spool rotates to rotate together with the spool, and having external teeth; a vehicle sensor unit for detecting a change in acceleration of a vehicle by a fluctuation of an inertial member to prevent the control disc from rotating; and an installation member coupled to a housing which is coupled to one sidewall of the fixed frame, wherein the vehicle sensor unit is directly and rotatably coupled to the installation member.

公开(公告)号：US11407379B2

公开(公告)日：2022-08-09

申请号：US16928582

申请日：2020-07-14

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Kenji Fukuta

IPC: B60R22/40 ,  B60R22/46 ,  B60R21/013

Abstract: A vehicle occupant restraint system is configured to, when a vehicle speed is higher than or equal to a vehicle speed threshold, a steering angle velocity is higher than or equal to a steering angle velocity threshold set for each vehicle speed, and an estimated lateral acceleration is higher than or equal to an acceleration threshold, drive a retractor motor. The steering angle velocity threshold is as a condition to drive the retractor motor. Therefore, by setting an appropriate steering angle velocity threshold according to an amount of movement of an occupant with inertia in a vehicle width direction, the vehicle occupant restraint system is able to take up a webbing when the occupant is estimated to move with inertia by a relatively large amount in the vehicle width direction. The amount of movement with inertia varies for each vehicle speed even at the same steering angle velocity.

公开(公告)号：US11235732B2

公开(公告)日：2022-02-01

申请号：US16504229

申请日：2019-07-06

Applicant: Autoliv Development AB

Inventor： Frank Matzen ,  Geert Wittenberg ,  Giuliano Begovic ,  David Winheim ,  Sven Krambeer

IPC: B60R22/40

Abstract: A belt retractor for a motor vehicle seat belt device, with a rotatably mounted belt reel onto which a seat belt is wound, and a belt tensioner with a drive wheel (1), which drives the belt reel in the event of an activation. A positively controlled tensioner coupling transfers the drive movement from the drive wheel (1) onto the belt reel. At least one coupling pawl (2,3) mounted on the drive wheel (1) and which is moved into and out of engagement with a toothing (20) rotationally fixed in relation to the belt reel to establish and disconnect a rotational connection of the drive wheel (1) with the belt reel. A friction ring (4) has a control arm (11) coupled with the coupling pawl (2,3), wherein in the event of an activation of the belt tensioner, the friction ring (4) performs a relative movement to the drive wheel (1) by frictional forces and, controls via the control arm (11) the movement of the coupling pawl (2,3) into engagement and disengagement with the toothing (20). The friction ring (4) and/or the coupling pawl (2,3) has a blocking contour (12), positioned such that the coupling pawl (2,3) abuts thereon after the disengaging movement out of the toothing (20) and is blocked in the direction of a repeated engagement movement into the toothing (20).

公开(公告)号：US11052868B2

公开(公告)日：2021-07-06

申请号：US16468014

申请日：2017-11-23

Applicant: AUTOLIV DEVELOPMENT AB

Inventor： Tjark Brosowski ,  Markus Hueg ,  Aniruddha Deshpande

IPC: B60R22/40 ,  B60R22/415

Abstract: A seat belt retractor with a belt shaft rotatably supported in a frame for winding up a seat belt. A blocking device blocks the belt shaft in the winding off direction. A control disk (1) is spring-loaded in the direction of winding up and with a cogging (2). A sensor device (3) inertia mass (4) and a blocking lever (5) can be deflected by the inertia mass (4), which blocks the control disk (1) by deflecting the inertia mass (4) and an engagement of the blocking lever (5) into the cogging (2) of the control disk (1). A counter gear unit (6) driven by the rotary movement of the belt shaft, and a first switching device (7) is activated by the counter gear unit (6) and blocks the control disk (1) after a first belt webbing withdrawal (A) and frees it again after a second belt webbing intake (B). A second switching device (8) is activated by the counter gear unit (6) and fixes the blocking lever (5) after a belt webbing intake (C) in a non-engagement position into the cogging (2) of the control disk (1).

公开(公告)号：US10906504B2

公开(公告)日：2021-02-02

申请号：US15871373

申请日：2018-01-15

Applicant: Ford Global Technologies, LLC

Inventor： Dean M. Jaradi ,  Mohammad Omar Faruque ,  S. M. Iskander Farooq

IPC: B60R22/41 ,  B60R22/40 ,  B60R22/343 ,  B60R21/01 ,  B60R22/46

Abstract: A system includes a seatbelt retractor having a spool and a braking claw selectively engageable with the spool. The system includes an actuator designed to inhibit engagement of the braking claw with the spool. The system includes a processor and a memory storing program instructions executable by the processor to actuate the actuator to inhibit engagement of the braking claw with the spool for a threshold amount of time after detecting an impact of a vehicle.

公开(公告)号：US20200282949A1

公开(公告)日：2020-09-10

申请号：US16738050

申请日：2020-01-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kazuhito YAMAMOTO

IPC: B60R22/48 ,  B60R22/10 ,  B60R22/343 ,  B60R22/40 ,  B60R22/42

Abstract: A seat belt take-up control system includes: a first belt-take-up unit mounted at a child seat, the first belt-take-up unit taking up a seat belt of a vehicle seat and applying a predetermined tension at a time of fastening the seat belt; a belt lock unit that prevents pulling out of the seat belt in a state which the seat belt has been taken up by the first belt-take-up unit; and an second belt-take-up unit that, in a state in which pulling out of the seat belt has been locked by the belt lock unit, takes up the seat belt and applies a predetermined tension after the seat belt is fastened in at least one of a case in which pulling out of the seat belt is detected or a case in which a predetermined period of time has elapsed.

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：US20190291688A1

公开(公告)日：2019-09-26

申请号：US16273770

申请日：2019-02-12

Applicant: MAZDA MOTOR CORPORATION

Inventor： Teruhiko HIRUTA ,  Yoichi MIYAJIMA

IPC: B60R22/46 ,  B60R22/40

Abstract: A seatbelt device for a vehicle comprises a belt which restrains an occupant, a retractor which supports the belt so as to wind up one end of the belt, a frictional-force applier which is configured to apply a frictional force to the belt by contacting the belt, and an actuator to actuate the frictional-force applier so as to change the frictional force.

公开(公告)号：US10391971B2

公开(公告)日：2019-08-27

申请号：US15501681

申请日：2015-06-05

Applicant: TAKATA CORPORATION

Inventor： Hayato Uchibori

IPC: B60R22/40 ,  B60R22/34 ,  B60R22/46 ,  B60R22/28

Abstract: A seat belt retractor that has a simple structure, easy to manufacture and operates accurately is provided, and a seat belt apparatus provided with the seat belt retractor is also provided. The seat belt retractor includes energy absorbing mechanisms that absorb and alleviate the energy of a vehicle occupant by limiting a load applied to a seat belt. The energy absorbing mechanisms is coaxially incorporated in a spool, whose one end portion is retained by the spool and the other end can be locked by the lock mechanism, and obtains a rotational force when being twisted. The second energy absorbing mechanism includes a first rotating member rotatable together with the spool, an abutting member relatively rotatable with respect to the first rotating member by a predetermined angle, a second rotating member relatively rotatable with respect to the abutting member, and an energy absorbing member whose one end portion is fixed to and supported by the second rotating member and the other end portion abuts against the abutting member.