| 摘要 |
PROBLEM TO BE SOLVED: To allow a light-receiving surface of a solar cell to change the attitude laterally and rest, when a solar cell-attached tool is placed on a workbench or the like.SOLUTION: A solar cell 9 arranged on the surface side of a handle 3 of a torque wrench 1 is covered with a cover 7. In the cover 7, an upper surface 73 arranged on the upper side of a light-receiving surface 91 of the solar cell 9 is formed as a roof part having an arc shape projected outward, and both sides in the width direction of the cover 7 are respective slope sides.SELECTED DRAWING: Figure 3 |
