| 摘要 |
PROBLEM TO BE SOLVED: To solve problems with a magnetic body launch device that launches an iron ball with a plunger inserted into an electromagnetic solenoid, including a decrees in repetitive motion life due to wear of an operating portion, a change in launch position accuracy, an increase power consumption due to operation of the solenoid, an increase in the number of device parts and enlargement due to a complex structure, an increase in device manufacturing cost and noise of an operating body striking an iron ball. SOLUTION: A magnetic material is accelerated noncontactually by making a magnetic field act on the magnetic material (iron ball) by appropriately controlling passage of current to an electromagnetic solenoid.
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