Tongue for seat belt device, and seat belt device
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorSeiji Hori
Life of this patent
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Abstract
A tongue for a seat belt device is provided with a tongue main body that is insertable within a buckle, and a train-around portion through which an intermediate portion of a webbing is inserted. The train-around portion includes a first shaft is fixedly mounted between a pair of opposing walls, and a second shaft that is movably mounted between the walls. The webbing is slidably bent 180° around the first fixed shaft. When tension of the webbing exceeds a predetermined magnitude or greater, the movable second shaft engages the webbing and increases a bending angle of the webbing around the first shaft to an angle greater than 180° thereby increasing frictional resistance between the webbing and the train-around portion.
Claims6
A tongue for a seat belt device, comprising:
- a tongue main body that is provided at an intermediate portion of a webbing in a longitudinal direction of the webbing, and at which the webbing is folded over in a state in which the tongue main body is inserted in a buckle;
- a train-around portion that is provided at the tongue main body, and at which the webbing is bent due to the webbing being trained therearound;
- and
- a bending angle increasing section that includes a movable portion provided so as to be apart from the train-around portion by more than a thickness dimension of the webbing, and that, in a case in which tension of the webbing is a predetermined magnitude or greater, moves the movable portion in a predetermined direction to cause the movable portion to push the webbing, and trains the webbing around the train-around portion and increases a bending angle of the webbing in a state in which the movable portion is apart from the train-around portion by more than the thickness dimension of the webbing,
- wherein the movable portion is a folded over portion at which the webbing is folded over, and the movable portion is a slider member that can slide at the tongue main body.
A seat belt device comprising:
- a buckle that is provided at a side of a seat;
- a webbing that is shaped as an elongated strip;
- and
- a tongue that includes:
- a tongue main body that is provided at an intermediate portion of the webbing in a longitudinal direction of the webbing, and at which the webbing is folded over, the tongue main body being insertable into the buckle;
- a train-around portion that is provided at the tongue main body, and at which the webbing is bent due to the webbing being trained therearound;
- and
- a bending angle increasing section that includes a movable portion provided so as to be apart from the train-around portion by more than a thickness dimension of the webbing, and that, in a case in which tension of the webbing is a predetermined magnitude or greater,
- moves the movable portion in a predetermined direction to cause the movable portion to push the webbing, and trains the webbing around the train-around portion and increases a bending angle of the webbing in a state in which the movable portion is apart from the train-around portion by more than the thickness dimension of the webbing,
- wherein the movable portion is a folded over portion at which the webbing is folded over, and the movable portion is a slider member that can slide at the tongue main body.
Dependencies are inferred from the claim text.