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US 11,951,933 B2Granted
Webbing support device
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorsYusuke Watada, Shota Okuyama, Shigeki Yoshida
Life of this patent
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Abstract
In a lift-up buckle device, a worm wheel is engaged with a screw drive. When a worm is rotated in a forward direction and causes the screw drive to move downward, the worm moves the worm wheel downward. On the other hand, when the worm is rotated in a reverse direction and causes the screw drive to move upward, the worm moves the worm wheel upward. Consequently, the worm wheel may be stably engaged with the screw drive, and the worm wheel and worm may be stably mated.
Claims7
A webbing support device comprising:
- a support portion configured to support a webbing to be applied to an occupant;
- an engaging body connected with the support portion;
- a worm wheel engaged with the engaging body;
- and
- a worm directly mated with the worm wheel, rotation of the worm causing the worm wheel to rotate and, via the engaging body, causing the support portion to move, when a movement force to one axial direction side of the worm wheel is to act on the engaging body from a support portion side, the movement force to the one axial direction side being caused to act on the worm wheel by the rotation of the worm, and when a movement force to another axial direction side of the worm wheel is to act on the engaging body from the support portion side, the movement force to the other axial direction side being caused to act on the worm wheel by the rotation of the worm.
2 more elements
Dependencies are inferred from the claim text.