Buckle device
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsRyuji Yamaguchi, Yoshio Mizuno
Life of this patent
Estimating the term…
Abstract
In the buckle device, when or after torsional deformation of the torsion shaft has started and allowance of the drawing-out of the belt has started, the breaking portion of the shear plate is started to be deformed by the coupling hole side surface of the spool, whereby the breaking portion allows the rotation of the spool and allows the drawing-out of the belt. Therefore, the allowable drawing-out load of the belt can be made the sum of the load for torsionally deforming the torsion shaft and the load for deforming the breaking portion, and can be increased.
Claims10
A buckle device, comprising:
- a buckle main body with which a tongue provided at a webbing to be applied to an occupant is engaged;
- a coupling member whose tip side is coupled to the buckle main body;
- a winding shaft around which the coupling member is wound from a base end side;
- a restricting member configured to restrict drawing-out of the coupling member from the winding shaft, the restricting member being deformed and allowing drawing-out of the coupling member from the winding shaft to allow extension of the buckle main body;
- a breaking member configured to restrict drawing-out of the coupling member from the winding shaft, deformation of the breaking member being started to allow drawing-out of the coupling member from the winding shaft when or after the restricting member has started to be deformed, and the breaking member being broken to permit drawing-out of the coupling member from the winding shaft, and
- a locking body to which the restricting member and the breaking member are locked.
A buckle device, comprising:
- a buckle main body with which a tongue provided at a webbing to be applied to an occupant is engaged;
- a coupling member whose tip side is coupled to the buckle main body;
- a winding shaft around which the coupling member is wound from a base end side;
- a restricting member configured to restrict drawing-out of the coupling member from the winding shaft, the restricting member being deformed and allowing drawing-out of the coupling member from the winding shaft to allow extension of the buckle main body;
- a breaking member configured to restrict drawing-out of the coupling member from the winding shaft, deformation of the breaking member being started to allow drawing-out of the coupling member from the winding shaft when or after the restricting member has started to be deformed, and the breaking member being broken to permit drawing-out of the coupling member from the winding shaft, and
- wherein the breaking member is disposed between the winding shaft and the restricting member.
Dependencies are inferred from the claim text.