Patent ID: 7619335

Claim:
A vibration motor comprising: a tubular case accommodating a rotor and stator; a shaft protruding from a front end of the case; a weight eccentrically fixed to a front end of the shaft, the weight having a front end and a rear end; and a metallic holder surrounding the case, the holder being surface-mounted on a wiring board by reflow-soldering, wherein the holder includes: a main body having a planate bottom placed on the wiring board, a planate top, and a pair of flanks connecting the top and the bottom; and a pair of forward tilting prevention portions extending from the main body toward the weight in parallel with an axis of rotation of the shaft so as to face the weight, farthest ends of the forward tilting prevention portions not reaching the front end of the weight, and the rear end of the weight not reaching the main body, each of the forward tilting prevention portions including: a bottom portion extending from the bottom of the main body; and a flank portion erected from the bottom portion and extending from the flank of the main body.