| 摘要 |
A safety switch control mechanism includes a linkage and a safety control key. The linkage has a bracket mounted to an instrument panel of an exerciser and a wheel thereof rotatably mounted to the bracket. The instrument panel includes a keyhole located at an opposite side thereof to the bracket. The wheel has at least one hook portion formed at an outer periphery thereof, and a holding portion and a releasing portion formed at one side thereof. The safety control key has a through hole for engaging said at hook portion. When the safety control key is inserted into or pulled away from the keyhole, the sidewall of the through hole forces clockwise or counterclockwise rotation of the wheel to further shift the releasing portion for contact against a micro switch mounted to the instrument panel, and thus the micro switch is driven to switch on or off the power supply of the exerciser.
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