Buckle device, seat mounting structure for buckle device, and vehicle seat belt device
AssigneesToyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsKatsuya Shimazu, Yoshio Mizuno, Makoto Matsuzaki
Life of this patent
Estimating the term…
Abstract
A buckle device includes: a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected; a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body; and a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, and an energy absorbing member that is deformed by rotation of the take-up shaft.
Claims17
A buckle device comprising:
- a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected;
- a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body;
- and
- a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, and a torsion shaft that is torsionally deformed by rotation of the take-up shaft and, the torsion shaft is coaxially disposed next to the take-up shaft in an axial direction.
A seat mounting structure, comprising:
- a vehicle seat including a seat cushion connected to a vehicle body floor via a lifter mechanism and a slide mechanism, and a seatback connected to the seat cushion via a reclining mechanism;
- an anchor bracket fixed to a rear part of an upper rail included in the slide mechanism;
- and
- a buckle device comprising:
- a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected;
- a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body;
- and
- a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to the vehicle seat or a vehicle body, and a torsion shaft that is torsionally deformed by rotation of the take-up shaft, the torsion shaft is coaxially disposed next to the take-up shaft in an axial direction, the force limiter mechanism is disposed in front of a cover of the reclining mechanism in a longitudinal direction of the vehicle is supported by the anchor bracket.
A buckle device comprising:
- a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected;
- a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body;
- and
- a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, a torsion shaft and a gear train, the torsion shaft is torsionally deformed by rotation of the take-up shaft, and the gear train transmits the rotation of the take-up shaft to the torsion shaft.
Dependencies are inferred from the claim text.