Patent ID: 8480174
Filing Date: 2013-07-09
Classification: B60N

Abstract:
1. A seat frame reinforcement structure, comprising: a reinforcing member that is provided between side frames of a framework of a vehicle seat, the reinforcing member connected to the side frames and extending in a width direction of the vehicle seat, wherein: the reinforcing member comprises a guide member, a tubular rod and a bushing that is fitted to an end portion of the tubular rod, wherein the tubular rod is provided extending between the side frames in the width direction of the vehicle seat, and wherein end portions of the tubular rod are supported so as to be rotatable with respect to the side frames; an operation pin of a reclining mechanism, which passes through one of the side frames, is inserted in an end portion of the bushing in an axial direction of the reinforcing member so that bushing and the tubular rod are connected to the operation pin so as to be rotatable together with the operation pin in the same rotational direction; a diameter of the tubular rod is larger than a diameter of the operation pin; a clearance is left between an end portion of the bushing, to which the operation pin is connected, and the one of the side frames that faces the end portion of the bushing to which the operation pin is connected; the bushing having an accommodating portion defined by an axially extending slot in which an end portion of the operation pin is fitted, and wherein, as a result of the clearance, an end face of the end portion of the operation pin is spaced from a bottom of the slot so as not to contact the bushing; and the guide member is connected integrally to the one of the side frames that faces the end portion of the bushing to which the operation pin is connected and extends in the axial direction so as to surround an outer periphery of a portion of the operation pin, which is exposed due to the clearance, wherein a free end of the guide member is configured to confront an end face provided on the bushing.