| 摘要 |
A device for locking an electric tool with a rechargeable battery pack has at least one locking bar mounted on one element selected from the group consisting of the electric tool and rechargeable battery pack in a manner that allows it to move against a spring force, whereby when the electric tool and rechargeable battery pack are joined, the locking bar is engaged in succession in a first and a second recess of the other element selected from the group consisting of the electric tool and rechargeable battery pack, and is retained tightly in the second recess by a force of a spring and, to release a lock, is manually disengaged from the second recess, wherein the locking bar is engaged in the first recess while being disengaged from the second recess.
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