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公开(公告)号：US20180118157A1
公开(公告)日：2018-05-03
申请号：US15561811
申请日：2016-03-28
发明人： Kosuke MIIDA , Akira SUMIYASHIKI , Kaoru YUASA , Wataru YANAGAWA
IPC分类号： B60R22/46
CPC分类号： B60R22/4676 , B60R22/4628 , B60R2022/4638 , B60R2022/468 , B60R2022/4685
摘要： A webbing take-up device includes a spool, a lock gear that restricts pull-out direction rotation of the spool, a force limiter mechanism that permits pull-out direction rotation of the spool at or above a force limiter load, and a pawl that switches the force limiter load. The webbing take-up device further includes a cylinder section that includes a first cylindrical portion and a second cylindrical portion, a gas generator that supplies gas into the second cylindrical portion, and a piston section that is moved along the first cylindrical portion by an increase in pressure inside the second cylindrical portion and the first cylindrical portion so as to press and displace the pawl. An axial center of the second cylindrical portion is disposed offset with respect to an axial center of the first cylindrical portion, and an abutted portion that is abutted by the piston section is provided at a boundary between the first cylindrical portion and the second cylindrical portion.
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公开(公告)号：US20150274122A1
公开(公告)日：2015-10-01
申请号：US14669835
申请日：2015-03-26
发明人： Wataru YANAGAWA , Kengo MIURA , Kosuke MIIDA
CPC分类号： B60R22/3413 , B60R22/44 , B60R22/4633 , B60R22/4676 , B60R2022/4642 , B60R2022/4661
摘要： In a pretensioner mechanism of a webbing take-up device, a sealing member seals a communicating hole of a piston. When a force limiter mechanism is operated and rotating of a spool in a pull-out direction is allowed, the piston is moved to an upper side in a state in which the sealing member is pressed and contacted against a cylinder. As a result, the sealing member is turned and the sealing of the communicating hole by the sealing member is released. In consequence, a number of components may be reduced and assembly characteristics of the pretensioner mechanism may be improved.
摘要翻译： 在带状卷取装置的预张紧机构中，密封构件密封活塞的连通孔。 当操作力限制机构并且允许卷轴在拉出方向上旋转时，活塞在密封部件被按压并与气缸接触的状态下移动到上侧。 结果，密封构件被转动，并且通过密封构件的连通孔的密封被释放。 因此，可以减少多个部件，并且可以提高预紧器机构的组装特性。
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公开(公告)号：US20180029855A1
公开(公告)日：2018-02-01
申请号：US15663165
申请日：2017-07-28
发明人： Yoshihiko USHIYAMA , Masaru UKITA , Kaoru YUASA , Kosuke MIIDA
CPC分类号： B66D1/50 , B60R22/341 , B60R2022/287 , B60R2022/288 , B66D1/005 , B66D1/365 , B66D1/38 , B66D1/7489
摘要： The present disclosure presents a webbing take-up device, which comprises: a spool; a lock section that is restricted from rotating at a time of a vehicle emergency so as to limit rotation of the spool in the pull-out direction; a force limiter mechanism that permits rotation of the spool in the pull-out direction at a force limiter load or greater when rotation of the spool in the pull-out direction with respect to the lock section is being limited; a switching member that switches a load value of the force limiter load by switching between a rotation-restricted state and a rotation-enabled state; and a mounting member that includes a switching member mounting section at which the switching member is disposed, and a restriction section that is engaged with the switching member so as to restrict displacement of the switching member disposed at the switching member mounting section.
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