1. A reel holding device configured for use with a feeder device that collects components at a supply position by sending out a component storage tape which stores each of the components in a plurality of component storage sections, and holds a plurality of component supply reels around which component storage tapes are respectively wound to be rotatable and exchangeable, the device comprising:a case which accommodates the plurality of component supply reels to be aligned in a direction of a reel axial line;
outer circumferential support members between two sides walls of the case, that support outer circumferences of the plurality of component supply reels to be rotatable such that the reel axial lines are substantially rotational symmetric to each other; and
a deviation preventing member between the two side walls, that faces the outer circumferences of the plurality of component supply reels, and that prevents the component supply reels from deviating from the outer circumferential support members,
wherein at least one of the outer circumferential support members and the deviation preventing member is an integrated rod-like member which includes a smooth surface that abuts against the outer circumferences of the plurality of component supply reels and is between the two side walls, and
wherein the integrated rod-like member is a freely rotatable rod-like roller member, and includes a diameter-reducing section which is wider than a thickness of reel flanges that respectively form ends of the component supply reels, and that is narrower than a separation distance of the reel flanges.