Seat belt retractor

B - Operations – Transporting – 60 – R

Patent

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Details

B60R 22/40 (2006.01) B60R 22/405 (2006.01)

Patent

CA 2139520

A vehicle seat belt retractor (10) includes a frame (12) supporting a spool (50) on which seat belt webbing (72) is wound for rotation in belt withdrawal (76) and belt retraction (75) directions. A lever (196) for use in preventing rotation of the spool (50) in the belt withdrawal direction (76) has a cylindrical portion (220) and a key (224) extending radially outward from the cylindrical portion (220). The lever (196) is supported for pivotal movement on a support member (112) that has a cylindrical chamber (222) for receiving the cylindrical portion (220) of the lever (196). A keyway (226) extends radially outward from the cylindrical chamber (222) for receiving the key (224) of the lever (196). The keyway (226) includes a surface (227) engageable by the key (224) of the lever (196) to prevent axial movement of the cylindrical portion (220) out of the cylindrical chamber (222).

Rétracteur de ceinture de sécurité pour véhicule (10) constitué d'un cadre (12) supportant un enrouleur (50) sur lequel la sangle de la ceinture de sécurité (72) est enroulée pour rotation dans le sens du retrait (76) et de la rétraction (75) de la ceinture. Un levier (196), utilisé pour prévenir la rotation de l'enrouleur (50) dans le sens du retrait de la ceinture (76), présente une partie cylindrique (220) ainsi qu'une clavette (224) s'étendant radialement vers l'extérieur à partir de la partie cylindrique (220). Le levier (196) est soutenu pour permettre un pivotement sur un élément de support (112) qui possède un compartiment cylindrique (222) servant à recevoir la partie cylindrique (220) du levier (196). Un logement de clavette (226) s'étend radialement vers l'extérieur à partir du compartiment cylindrique (222), afin de recevoir la clavette (224) du levier (196). Le logement de clavette (226) comprend une surface (227) dans laquelle peut s'engager la clavette (224) du levier (196), afin de prévenir un mouvement axial de la partie cylindrique (220) vers l'extérieur du compartiment cylindrique (222).

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