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公开(公告)号：US20200282947A1
公开(公告)日：2020-09-10
申请号：US16644687
申请日：2018-09-06
发明人： Tomoya OWAKI , Kazuhiro YAMADA
IPC分类号： B60R22/343 , B60R22/38
摘要： In a webbing take-up device, in a case in which the acceleration with which a webbing is pulled out from a spool, which is based on the radius of the webbing taken up on the spool and the angular acceleration of rotation of the spool in the pull-out direction that are detected by an angle-of-rotation sensor, is equal to or greater than a predetermined acceleration, a lock mechanism locks the rotation of the spool in the pull-out direction. For this reason, the rotation of the spool can be locked on based on the acceleration with which the webbing is pulled out from the spool.
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公开(公告)号：US20200164833A1
公开(公告)日：2020-05-28
申请号：US16682382
申请日：2019-11-13
发明人： Tomoya OWAKI , Takuhiro SAITO , Kazuhiro YAMADA , Atsushi NISHINO
IPC分类号： B60R22/46 , B60R22/405
摘要： A webbing retractor includes a spool, a motor, a force limiter mechanism, a first rotating body, a second rotating body, a ratchet gear, a pawl body and a control section. The ratchet gear is provided at one of the first rotating body or the second rotating body. The pawl body is provided at another of the first rotating body or the second rotating body. The pawl body can engage with the ratchet gear in a case in which the first rotating body rotates toward one side, and engagement of the pawl body with the ratchet gear being cancelled in a case in which the first rotating body rotates toward another side. The control section drives the motor to rotate in reverse, such that the first rotating body rotates toward another side in a case in which a physical amount relating to load of the passenger exceeds a predetermined value during forward rotational driving.
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公开(公告)号：US20220001833A1
公开(公告)日：2022-01-06
申请号：US17294806
申请日：2019-11-01
发明人： Tomoya OWAKI , Takuhiro SAITO , Kazuhiro YAMADA , Atsushi NISHINO
IPC分类号： B60R22/343 , B60R22/405
摘要： A webbing retractor includes: a take-up shaft on which a webbing that is applied to a vehicle occupant can be taken-up, and on which the webbing is taken-up due to the take-up shaft being rotated in a take-up direction, and that is rotated in a pull-out direction due to the webbing being pulled-out; a restricting member that, by being operated, restricts rotation of the take-up shaft in the pull-out direction; a sensing section that senses a pulled-out state of the webbing; and a control section that, in a case in which the sensed pulled-out state corresponds to a state in which the webbing is pulled-out to a predetermined position, operates the restricting member and restricts rotation of the take-up shaft.
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公开(公告)号：US20210114550A1
公开(公告)日：2021-04-22
申请号：US16970228
申请日：2019-01-29
发明人： Kazuhiro YAMADA , Tomoya OWAKI , Takuhiro SAITO
IPC分类号： B60R22/343
摘要： In a webbing take-up device, when a lock tooth of a pawl is being rotated toward a lock base, a leading end of the lock tooth is rotated to between leading ends of ratchet teeth of the lock base. This enables the leading end of the lock tooth to be suppressed from colliding with the leading ends of the ratchet teeth.
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公开(公告)号：US20200172046A1
公开(公告)日：2020-06-04
申请号：US16682407
申请日：2019-11-13
发明人： Tomoya OWAKI , Takuhiro SAITO , Kazuhiro YAMADA
IPC分类号： B60R22/343 , B60R22/405 , B60R22/415 , B60W40/08
摘要： A webbing retractor including: a take-up shaft that can take-up a webbing that is applied to a passenger, that takes-up the webbing by being rotated in a take-up direction, and that is rotated in a pull-out direction due to the webbing being pulled-out; a restricting member that, by being operated, restricts rotation of the take-up shaft in the pull-out direction; a driving portion that, by being electrically driven, changes an operating state of the restricting member; and a control section that acquires an acceleration of any of the webbing, the passenger or a vehicle, that computes jerk related to the acceleration, and that controls the driving portion such that the restricting member operates in a case in which the acceleration exceeds a first threshold value and the jerk exceeds a second threshold value.
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