| 摘要 |
A rotary mode selection switch (1) for the synchronized switching over of the operating mode of a hand tool. The switch (1) comprising a manually externally actuated driving member (2) and a driven member (3), wherein the driving member (2) includes two eccentrically disposed recesses (5, 5') for receiving two spring elements (6, 6'). The two spring elements (6, 6') include initial front surfaces (7, 7') that contact the driving member (2) and second front surfaces (8, 8') that are oriented in the same direction, wherein with an angle shift (alpha) of the driving member (2) relative to the driven member (3), at least one of the second front surfaces (8, 8') of the spring elements (6, 6') alternately contacts at least one eccentrically disposed contact piece (10, 10', the contact piece axially engaging into the recesses (5, 5'), of the driven member (3).
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