Webbing pull-in device

Patent metadata

Field	Value
Publication number	US-10479318-B2
Application number	US-201615572537-A
Country	US
Kind code	B2
Filing date	May 11, 2016
Priority date	May 20, 2015
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A webbing pull-in device has a take-up shaft at which a webbing can be pulled in due to the take-up shaft being operated, a first pulley that is rotated at a time of an emergency of a vehicle, and a second pulley that, by being rotated, operates the take-up shaft. Further, the webbing pull-in device has a connecting wire that connects the first pulley and the second pulley, and that, by being taken up onto the first pulley at a time when the first pulley is rotated, transmits rotational force of the first pulley to the second pulley.

First claim

The invention claimed is:

1. A webbing pull-in device comprising:
a pull-in body at which a webbing can be pulled in due to the pull-in body being operated;
a first rotating body that is rotated at a time of an emergency of a vehicle; a second rotating body that, by being rotated, operates the pull-in body; and
a connecting member that connects the first rotating body and the second rotating body, and that, by being taken up onto the first rotating body at a time when the first rotating body is rotated, transmits rotational force of the first rotating body to the second rotating body,
wherein the connecting member is fixed to the first rotating body so as to be wound around the first rotating body at the emergency time of the vehicle, the second rotating body is directly connected to the pull-in body, and
the first and second rotating bodies are configured to remain stationary with respect to each other during the emergency time of the vehicle.

2. The webbing pull-in device of claim 1 , wherein the first rotating body includes a take-up portion onto which the connecting member is taken up, and the second rotating body includes a winding portion on which the connecting member is wound, and the take-up portion and the winding portion differ from one another in at least one of dimension or shape.

3. The webbing pull-in device of claim 1 , wherein a rotational axis direction of the first rotating body is oriented in a direction intersecting a rotational axis direction of the second rotating body.

4. The webbing pull-in device of claim 1 , wherein the second rotating body includes a winding portion on which the connecting member is wound, and the connecting member is wound onto the winding portion from a rotational axis direction one side of the winding portion toward another side, and the connecting member is pulled out toward a radial direction outer side and a rotational axis direction other side of the winding portion.

5. The webbing pull-in device of claim 1 , wherein the first rotating body is structured so as to be rotated interlockingly with movement of a moving member that is moved due to gas being supplied into a cylinder, and the connecting member is disposed at an outer side of the cylinder.

Assignees

• Tokai Rika Co Ltd

Inventors

• Hashimoto Haruhiko
• Ukita Masaru
• Nakashima Ryu
• Ushiyama Yoshihiko

Classifications

• B60R22/4628 Primary

  characterised by fluid actuators, e.g. pyrotechnic gas generators (actuating a cable B60R22/4619) · CPC title

• B60R22/4619

  Transmission of tensioning power by cable, e.g. using a clutch on reel side · CPC title