A three-point safety belt includes a belt body, a winder, a shoulder belt guide ring, and a lock tongue. The winder and the shoulder belt guide ring are fixed onto a vehicle body. The winder is located below the shoulder belt guide ring. The lock tongue is disposed on the belt body. The lock tongue divides the belt body into a shoulder belt and a waist belt. The shoulder belt penetrates through the shoulder belt guide ring. The free end, away from the lock tongue, of the shoulder belt and the free end, away from the lock tongue, of the waist belt are both wound in the winder. The winder synchronously winds or unwinds the shoulder belt and the waist belt.

A cover for a seatbelt retractor assembly comprising: a first layer having an inside surface configured to face a seatbelt webbing retracted by a seatbelt retractor assembly, an outside surface configured to face away from the seatbelt webbing, a plurality of holes disposed through the first layer from the inside surface through to the outside surface, and baffles adjacent each of the plurality of holes. The cover reduces audible noise generated by moving components of the seatbelt retractor assembly. The baffles adjacent each of the plurality of holes are disposed on the inside surface. The cover can further include a second layer, which includes a sound absorbing material such as foam. The second layer at least partially covers the outside surface of the first layer and covers the plurality of holes. The cover can further include snap fit fastening elements to connect the cover to the seatbelt retractor assembly.

A belt retractor (40) having a belt reel (14), a seat belt (12) which can be wound thereon to form a belt reel, and at least one first assembly, the first assembly being arranged coaxially with the axis of rotation of the belt reel (14) and in series with the belt reel (14). The belt retractor is especially adapted for mounting inside the frame member of a motor vehicle seat.

The invention refers to a load-bearing structural part (2) of a seat structure of a vehicle seat, which has a cavity (21), in which a belt retractor (40) is arranged.

A seat belt retractor which is mounted in a mounting space formed on a backrest of a seat installed in a vehicle and comprises a spindle module including webbing and a spindle having the webbing wound on the outer surface thereof, wherein the spindle is arranged along the longitudinal direction of the vehicle corresponding to the thickness direction of the backrest in the mounting space, such that by rotating the direction in which the spindle, on which the webbing is wound, is installed, the width in the longitudinal direction mounted on the backrest of the seat can be minimized, thereby making the retractor more slender.

A seatback with a built-in retractor for a seat belt includes a first bracket configured to receive a tension acting on the retractor via the seat belt, and a second bracket provided on a belt discharge port side of the retractor and configured to hold a posture of the retractor. A portion of the second bracket having the smallest separation distance from the seat belt is constituted with a curved surface.

A webbing take-up device includes a spool on which a webbing worn by an occupant is taken up, and a motor that includes a rotation shaft and a first boss portion disposed coaxially with the rotation shaft. The webbing take-up device further includes an A-gear that is fixed to the rotation shaft, and a B-gear that meshes together with the A-gear and that is rotated by the A-gear being rotated such that the spool is rotated. The webbing take-up device further includes a gear housing that includes a B-gear support portion on which the B-gear is supported, and an engaged hole engaged by the first boss portion so as to have tightening margin therebetween, and to which the motor is fixed in a state in which the first boss portion has engaged with the engaged hole.

Provided are a seat belt retractor and a seat belt device capable of suppressing an increase in frictional resistance when a pretensioner is steadily driven and increasing the resistance to be applied to a webbing when energy is absorbed. A seat belt retractor includes a guide member facing at least a part of an outer circumferential surface of a locking base and disposed along an opening portion. The guide member is configured not to come into contact with the locking base until a pretensioner is shifted to a steady driving state, is configured to come into contact with the locking base when the pretensioner is steadily driven, and is configured to allow contact between lock teeth and the locking base when subjected to a predetermined load after the pretensioner is shifted to the steady driving state.

A seat belt retractor (10) having a frame with sides (14, 16) and a cover associated with at least one side, an inertial sensor (30) positioned between the at least one side of the frame and the cover, a seal located between the cover and the frame side to prevent contaminants from entering a space about the inertial sensor, the inertia sensor including a movable mass (34) and a magnet (36) spaced from the mass (34) to create a magnetic force upon the mass (34) preventing the magnet from moving excessively if the retractor is subject to predetermined levels of vibration.

A webbing take-up device includes a spool on which a webbing worn by an occupant is taken up, and a motor that includes a rotor with a rotation shaft and a motor housing covering part of the rotor, the rotor being urged toward one axial direction side of the rotation shaft with respect to the motor housing. The webbing take-up device further includes a second transmission mechanism that includes an A-gear fixed to the rotation shaft, and a B-gear meshed together with the A-gear and rotated by the A-gear being rotated toward one side together with the rotation shaft such that the spool is rotated. A helix angle of respective outer teeth of the A-gear is set such that an axial direction force toward the one axial direction side of the rotation shaft acts on the A-gear when the rotation shaft is rotated toward the one side.