Patent ID: 9090229
Filing Date: 2015-07-28
Classification: B60R

Abstract:
1. A webbing take-up device comprising: a spool that takes up webbing which is applied to an occupant, and that rotates in a pull-out direction by pulling out the webbing; a lock section that restricts rotation of the spool in the pull-out direction at least one of at a time when a vehicle suddenly decelerates or a time when the spool is rotated suddenly in the pull-out direction; a force limiter mechanism that, when the lock section restricts rotation of the spool in the pull-out direction, permits rotation of the spool in the pull-out direction at a force limiter load or greater; a pawl that is configured to be capable of being disposed in a first position and a second position so as to switch a load value of the force limiter load; a body that includes a flow path through which a gas generated by actuation of a gas generator flows; a cylinder that is connected to the flow path of the body; a piston that is housed inside the cylinder, and that moves along the cylinder by receiving a pressure of the gas to move the pawl from the first position to the second position; a sheet that is disposed at an opposite side of the cylinder with respect to the body, and that covers the cylinder by being attached to the body; a support plate that is attached to the body in a state in which the cylinder and the sheet are disposed between the support plate and the body; and a rib that is provided between the sheet and the support plate and is provided at an opposite side of the sheet with respect to the cylinder, and that presses the cylinder via the sheet towards the body side due to the support plate being attached to the body, wherein the rib is integrally formed at the sheet, and a portion of the rib is deformed due to the support plate being attached to the body.