To keep resonance frequency constant regardless of the magnitude of input energy by improving a spring body supporting a trough in an electromagnetic feeder vibrating the trough to feed an article via intermittent excitation to an electromagnet.

A spring body is constituted of multiple plate spring members 21 and spacer members 22 provided between the plate spring members 21 at the upper and lower end sections, and edge sections (a) at the end edges of the spacer members 22 on the contact faces with the plate spring members 21 on the center side of the plate spring members 21 are formed into a curved face shape. As the plate spring members 21 are bent, the effective size of their elastic sections is decreased, and the resonance frequency is increased, thereby a phenomenon that the resonance frequency is decreased as input energy is increased can be offset by the sliding friction on the contact faces between the plate spring members 21 and the spacer members 22.