To provide a lifter mechanism, or the like, wherein a height of the lifter mechanism is not increased owing to a power transmission mechanism of a motor for driving.

A lead screw 192 regularly or reversely rotated by an actuator 191, right and left female screw members 193, 193, respectively screwed with right and left male screw parts 202(a), (b), and a motion changing mechanism 194 motivity-converting a slide movement of the right and left female screw members 193, 193 to move it up and down, are provided. The motion changing mechanism 194 has a first motion converting member 221 fixed to the right female screw member 193 and having a first cam groove 233, a second motion converting member 221 fixed to the left female screw member 193 and having a second cam groove 233, a slide guide 222 slidably supporting the first and second motion changing members, a first and a second followers 253, 233 respectively engaging with the first and second cam grooves 233, 233, and an up and down member 223 supporting a pin base 172 freely in rising and falling.