Sony patents game controller stick that adjusts its own tension

1. A controller comprising: an operating body configured to permit a tilting operation, the operating body having a shaft section and an operating member provided at a tip of the shaft section; a tubular body having an inner surface that is parallel with a longitudinal direction of the shaft section when the tilting operation of the operating body is not performed and that is provided with a gap between the tubular body and the shaft section; and an elastic member that is provided between the tubular body and the shaft section of the operating body and that comes in contact with at least either the inner surface of the tubular body or the shaft section of the operating body when the tilting operation of the operating body is performed, wherein: the shaft section of the operating body has a cylindrical shape, including a first thread groove formed on at least part thereof, the controller includes: (i) a disk-shaped member having a second thread groove, the second thread groove being formed on an inner circumferential surface of the disk-shaped member and engaging with the first thread groove of the shaft section, the disk-shaped member being adapted to be movable along the longitudinal direction of the shaft section by rotation of the shaft section around a longitudinal axis, and (ii) a securing mechanism adapted to be set to either a state where the rotation of the shaft section of the operating body around the longitudinal axis is permitted or a state where the rotation in question is restricted, and the elastic member is provided on an outer circumference of the disk-shaped member and adapted to come in contact with the inner surface of the tubular body when the tilting operation of the operating body is performed.