| 摘要 |
<p>A pump actuation motor includes a yoke 15, a rotation shaft 12 that has, on one end side, a supported shaft portion 12d that is inserted into and supported by a block body 9 and an eccentric shaft portion 12c that actuates the plunger pumps 5 and 6 and, on the other end side, a rotor and a commutator 22 attached therearound, a brush holder 23 that holds a brush 24 that can supply electric power from the block body 9 side to the commutator 22, and a housing 26 that is so mounted between the yoke 15 and the block body 9 side as to cover an opening of such yoke 15, wherein the rotation shaft 12 includes a recessed portion 12a that opens on an end surface of the other end side while the yoke 15 includes a protruding portion 15a that protrudes into the recessed portion 12a that is formed as a part of such yoke 15, and the other end side of the rotation shaft 12 is supported by such protruding portion 15a. <IMAGE></p> |
