| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation unit capable of easily operating a part with a braking function such as a cylinder with a brake with one operation. SOLUTION: A stepped block 56 is fixed to a lower surface of a footboard 52. The stepped block 56 is formed with a step 56a so that an arm 42a and an arm 44a are turned with a different timing when the footboard 52 is operated. When moving a table 20 in a direction expressed with an arrow A, a projecting part 56b and a drawn-back part 56c formed in the stepped block 56 of a step pedal unit 50 turn the arms 42a and 44 with a different timing with single operation for operating the footboard 52 once, and braking condition of the table 20 is released, and the table 20 is moved in the direction expressed with the arrow A. During the time when the footboard 52 is operated deep, the table 20 is continuously moved with a cylinder rod 12 in the direction expressed with the arrow A. COPYRIGHT: (C)2005,JPO&NCIPI
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