| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver to be used even in a state not to be connected to an air compressor and facilitate a work to effect filling with compressed air. SOLUTION: A second accumulator chamber 20 is provided to accumulate compressed air having a pressure higher than an air pressure used by a body. This driver comprises an air intake port 16 connected to an air compressor through an air hose; a valve 22 to control intercommunication of the second accumulator chamber 20 and the air intake port 16; and a pressure reducing valve 21 to reduce pressure of compressed air in the second accumulator chamber 20 and feed the compressed air in an accumulator chamber 2.
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