Patent ID: 8748721

Claim:
A pedal device for a musical instrument, wherein the musical instrument is played by performing a stepping-on operation on a footboard, the device comprising a base, a shaft supported rotationally with respect to the base, a cam fixed to the shaft, and a connecting member for connecting the footboard and the cam, wherein the device is configured such that, when the footboard is stepped on, the cam and the shaft are rotated by the connecting member, and wherein the cam is composed of a cam assembly provided with a wheel member fixed to the shaft and a cam member removably attached to the wheel member and having a cam surface, by attaching the cam member to the wheel member with the orientation of the cam member set in a first orientation, a first cam shape is given to the cam assembly, and by attaching the cam member to the wheel member with the orientation of the cam member set in a second orientation, which is different from the first orientation, a second cam shape, which is different from the first cam shape, is given to the cam assembly.