Seat belt retractor and seat belt apparatus including the same

US8950819B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8950819-B2
Application numberUS-201113807686-A
CountryUS
Kind codeB2
Filing dateJun 3, 2011
Priority dateJul 1, 2010
Publication dateFeb 10, 2015
Grant dateFeb 10, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

During an emergency, in one form of a retractor having a spool, external teeth of a pawl provided at a spool right side end are made to mesh with some of internal teeth provided on a frame, and, with load acting on a seat belt, a spool left side end is brought into contact with a spool pushing portion. Since the spool left side end tends to be moved further in a direction of seat belt load with the load acting on the seat belt, the spool pushing portion pushes the spool left side end, whereby some of external teeth come into contact with internal teeth provided on the frame and fit deeply into gaps between adjacent ones of the internal teeth. Thus, some of the external teeth of the spool effectively come into mesh with the respective internal teeth of the frame with a simple movement of the spool.

First claim

Opening claim text (preview).

The invention claimed is: 1. A seat belt retractor comprising: a spool around which a seat belt is to be retracted; a frame that includes a first sidewall and a second sidewall and supports the spool while allowing rotation of the spool; a first engaging portion that is provided on one side end of the spool and includes a predetermined number of first external teeth that, in a case of an emergency, come into mesh with a predetermined number of first internal teeth provid…

Assignees

Inventors

Classifications

  • B60R22/36Primary

    Operations & Transport · mapped topic

  • B60R22/405Primary

    Operations & Transport · mapped topic

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What does patent US8950819B2 cover?
During an emergency, in one form of a retractor having a spool, external teeth of a pawl provided at a spool right side end are made to mesh with some of internal teeth provided on a frame, and, with load acting on a seat belt, a spool left side end is brought into contact with a spool pushing portion. Since the spool left side end tends to be moved further in a direction of seat belt load with…
Who is the assignee on this patent?
Yoshioka Hirokazu, Osada Kenji, Sesaki Takashi, and 1 more
What technology area does this patent fall under?
Primary CPC classification B60R22/36. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).