Seat belt retractor


Rétracteur de ceinture de sécurité


The object is to provide a seat belt retractor for preventing noise when in the clutch-disengaged mode. In order to solve this object, in the seat belt retractor (1) of the invention, upon reverse rotation of a motor (6) for rotating a spool (4) an upper connecting gear (27) is rotated in the clockwise direction, and both a clutch gear (31) and a rotating shaft (32) thereof are moved along a guide opening (11g). The clutch gear (31) separates from an outer teeth (17b) of a carrier gear (17), following which the clutch gear (31) meshes with the inner teeth of a clutch gear stopping/holding portion (11k). Upon the rotating shaft (32) coming in contact with the right end of the guide opening (11g), the movement of the clutch gear (31) and the rotating shaft (32) in the right direction is stopped, as well as stopping rotation of the clutch gear (31). Thus, switching to the clutch-disengaged mode is completed. In this case, rotation of the clutch gear (31) is stopped, thereby preventing noise due to rotation of other gears of the clutch mechanism and a power transmission mechanism (8).




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    DE-10059227-C1March 14, 2002Autoliv DevPassenger seatbelt tensioning reel has pivoted coupling latch providing coupling between rotary drive body and seatbelt shaft
    DE-20212088-U1January 02, 2003Trw Repa GmbhGurtaufroller
    EP-1323599-A1July 02, 2003Takata CorporationGurtaufroller
    JP-2002104135-AApril 10, 2002Takata Corp, タカタ株式会社シートベルトリトラクタ

NO-Patent Citations (1)

    PATENT ABSTRACTS OF JAPAN vol. 2002, no. 08 5 August 2002 (2002-08-05)

Cited By (6)

    Publication numberPublication dateAssigneeTitle
    EP-1726493-A1November 29, 2006Takata CorporationSitzgurtaufroller und Sitzgurtvorrichtung hierfür
    EP-1749715-A3October 03, 2007Takata CorporationSicherheitsgurtsystem mit Sicherheitsgurtaufroller
    EP-3165412-A1May 10, 2017Autoliv Development ABAutomatic gear train for motorized seatbelt retractors
    US-7735766-B2June 15, 2010Takata CorporationSeatbelt retractor
    WO-2007039181-A2April 12, 2007Autoliv Development AbSeat belt retractor-tensioner unit comprising a gear mechanism triggerable according to the direction of rotation of the drive thereof
    WO-2007039181-A3June 14, 2007Autoliv Dev, Ronald JabuschEnsemble retracteur/pretensionneur de ceinture de securite comprenant un mecanisme d'entrainement pouvant etre actionne en fonction du sens de rotation de l'entrainement correspondant