Patent ID: 7187097

Claim:
A pump actuation motor for actuating a pump, comprising: a yoke; a rotation shaft including one end having a support shaft part inserted into and which is supported to a system main body and an eccentric shaft part for actuating said pump, and the other end includes a rotor formed by winding an armature winding around a core through an insulator, and a commutator are attached; a brush holder for holding a brush feeding electric power supplied from said system main body, to said commutator; a housing interposed between said yoke and said system main body in such a way as to cover an opening part of said yoke; and a bearing accommodated in a bearing accommodating part formed in a bottom part of said yoke, which has a closed end, to project toward said rotor, so that the other end of said rotation shaft is rotatably supported, wherein said armature winding wound around said core at least partially surrounds said bearing accommodating part through said insulator.