Patent ID: 6152391
Filing Date: 2000-11-28
Classification: B60R

Abstract:
A webbing retractor comprising:a cylinder to which gas is supplied under a predetermined condition;a piston which is slidably provided within said cylinder, and which slides within said cylinder due to the pressure of the gas;a take-up shaft to which a base end portion of an elongated band-like webbing belt for restraining the body of an occupant is fixed and which is urged in the taking-up direction in which the webbing belt is taken up;a pretensioner for rotating said take-up shaft toward the taking-up direction due to the sliding of said piston;bearing means whose inside diameter size is larger than the outside diameter size of said take-up shaft and which has an inner peripheral portion into which said take-up shaft is coaxially inserted; anda protrusion which is formed either on the inner peripheral portion of said bearing means protruding towards the outer peripheral portion of said take-up shaft, or on the outer peripheral portion of said take-up shaft protruding towards the inner peripheral portion of said bearing means, and which has a very small portion of itself relative to the surface area of the opposite peripheral portion that contacts the opposite peripheral portion.