A pre-tensioner for a safety belt of vehicles is provided. The pre-tensioner for a safety belt of a vehicle that is disposed in a side sill of the vehicle and that operates to pull the safety belt by pushing a piston into a tube by a high pressure gas of a gas generator using explosive power of gunpowder that is configured at one side of a bracket in a state in which the piston is connected to the safety belt through a wire within the tube including: internal and external weldnuts that are fixed to each one side of internal and external side surfaces of the side sill, wherein by penetrating the side sill in a vehicle width direction by forming a screw at an external circumference of both end portions of the tube, the both end portions are engaged with the internal and external weldnuts, respectively.

A seat belt retractor includes a housing including a pair of side walls facing each other, a winding drum configured to wind up a webbing, the winding drum being housed between the pair of side walls so as to be rotatable in a winding direction and a pull-out direction of the webbing, a lock member provided at a first end portion, of the winding drum, located on one side in an axial direction of the winding drum, a biasing member including one end portion attached to the first end portion of the winding drum, the other end portion attached to the lock member, and a connecting portion connecting the one end portion and the other end portion, a shaft member attached to the first end portion of the winding drum, and a cover member attached to the housing.

A seat belt retractor includes a housing including a pair of side walls facing each other, a winding drum configured to wind up a webbing, the winding drum being housed between the pair of side walls so as to be rotatable in a winding direction and a pull-out direction of the webbing, a lock member provided at a first end portion, of the winding drum, located on one side in an axial direction of the winding drum, a biasing member including one end portion attached to the first end portion of the winding drum, the other end portion attached to the lock member, and a connecting portion connecting the one end portion and the other end portion, a shaft member attached to the first end portion of the winding drum, and a cover member attached to the housing.

A restraint system includes a retractor housing, a webbing spool rotatably coupled to the retractor housing and defining an axis of rotation. a wire spool lockable to the webbing spool, an die fixed relative to the retractor housing, and a wire fixed to the wire spool and engaged with the die.

A restraint system includes a retractor housing, a webbing spool rotatably coupled to the retractor housing and defining an axis of rotation. a wire spool lockable to the webbing spool, an die fixed relative to the retractor housing, and a wire fixed to the wire spool and engaged with the die.

A locking retractor includes a frame, a spool shaft rotatably mounted thereto, an outer surface of a base of a housing mounted to the frame with one end of the spool shaft extending into an opening defined through the base, one or more locking components arranged on an inner surface of the housing and configured to cooperate with the spool shaft to selectively block rotation of the spool relative to the frame, a sealing member configured to extend about and engage a periphery of the first opening and to extend about and engage a periphery of the spool shaft to form a seal between the base of the housing and the spool shaft to block ingress of moisture and particles, and a cover hermetically attached to the housing with the locking components sealed between the cover and the base of the housing.

A restraint system includes a retractor housing, a webbing spool rotatably coupled to the retractor housing and defining an axis of rotation, a wire spool lockable to the webbing spool, a die fixed relative to the retractor housing, and a wire fixed to the wire spool and engaged with the die.

A restraint system includes a retractor housing, a webbing spool rotatably coupled to the retractor housing and defining an axis of rotation, a wire spool lockable to the webbing spool, a die fixed relative to the retractor housing, and a wire fixed to the wire spool and engaged with the die.

A seat belt retractor includes a housing including a pair of side walls facing each other, a winding drum configured to wind up a webbing, the winding drum being housed between the pair of side walls so as to be rotatable in a winding direction and a pull-out direction of the webbing, a lock member provided at a first end portion, of the winding drum, located on one side in an axial direction of the winding drum, a biasing member including one end portion attached to the first end portion of the winding drum, the other end portion attached to the lock member, and a connecting portion connecting the one end portion and the other end portion, a shaft member attached to the first end portion of the winding drum, and a cover member attached to the housing.

A seat belt retractor includes a housing including a pair of side walls facing each other, a winding drum configured to wind up a webbing, the winding drum being housed between the pair of side walls so as to be rotatable in a winding direction and a pull-out direction of the webbing, a lock member provided at a first end portion, of the winding drum, located on one side in an axial direction of the winding drum, a biasing member including one end portion attached to the first end portion of the winding drum, the other end portion attached to the lock member, and a connecting portion connecting the one end portion and the other end portion, a shaft member attached to the first end portion of the winding drum, and a cover member attached to the housing.