| 摘要 |
A pump includes a pump chamber, a reciprocally, driven body that is moved to perform a pumping function by changing the capacity of the pump chamber, and a driving mechanism that reciprocally moves the driven body. The driving mechanism includes a rotating plate which is fixed to an output shaft of a motor and has an annular groove therein. A ball is sandwiched between an annular groove of a driving plate and the annular groove of the rotating plate. When the rotating plate begins rotating, the ball moves in the annular grooves and changes the inclined direction of the driving plate, thus, causing the driven body to reciprocate.
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