| 摘要 |
PROBLEM TO BE SOLVED: To provide an air pump device having a durability sustaining outdoor service with the intended performance even if it is exposed to an external environment, such as winds and rain and allowing suppression of the space while the compressed air is supplied smoothly. SOLUTION: A second cylinder body 28 having a bottom is put on a first cylinder body 16 in such a way as covering. An air compressing space 26 is formed between a head 22 provided at one end of first cylinder body 16 and the second cylinder body 28. The second cylinder body 28 is moved up and down by a handle 30, and the compressed air is fed via an air passage 18 provided in the first cylinder body 16.
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