Passenger's weight measurement device for vehicle seat

A vehicle seat, comprising:

• right and left upper rails, provided on corresponding right and left lower rails that are fixable to a vehicle floor, so as to be movable in a rear-and-front direction;
• at least one load sensor being attached above one of the right and left upper rails;
• and
• a frame member for the vehicle seat, the frame member being provided above the load sensors,
• wherein for the at least one load sensor:
• a rod is extended from the load sensor, and the rod penetrates the frame member and a holder for an elastic member, and is inserted into the elastic member,
• the elastic member is provided between the holder for the elastic member and the frame member,
• the holder for the elastic member comprises a position regulating portion capable of regulating a radial position of the elastic member,
• the load sensor comprises a connector extending therefrom, and provided below a load sensor attachment portion of the frame member,
• at least a part of the connector is provided at a position apart from a shaft center of the rod of the load sensor,
• the elastic member, the holder for the elastic member and the frame member are disposed in a line parallel with the shaft line of the rod of the load sensor, and
• wherein, in a space for disposing the elastic member between the frame member and the holder for the elastic member, a space enlarged portion that is enlarged in the direction of the shaft line of the rod of the load sensor is formed, and at least a past of the elastic member is disposed in the space enlarged portion.