| 摘要 |
PROBLEM TO BE SOLVED: To provide a power tool charging system for charging a battery pack even at a work site without a facility of commercial power supply. SOLUTION: The power tool charging system includes a power supply device 3 formed of a solar cell 84 installed in a power tool storage case 80, a condenser (concave mirror, for example) 82 which is arranged in the power tool storage case 80 and condenses sunlight to the solar cell 84, and a supply means 89 for supplying an output which the solar cell 84 generates based on condensing of sunlight by the condenser 82 as input power supply of a charging device 1. The condenser 82 has a cover member 81 which is openably mounted on the power tool storage case 80. When the cover 81 is in a blocked state, the condenser 82 is protected. When the cover member 81 is in an open state, the condenser 82 is irradiated with sunlight. COPYRIGHT: (C)2010,JPO&INPIT
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