| 摘要 |
A safety device of a treadmill comprise a belt wrapped on user's body and having a cable with an engaging pad connected thereto. The engaging pad includes a first terminal electrically connected to a circuit of the control panel of the treadmill and a second terminal in the control panel. A magnet is received in the engaging pad and attracts a magnetically conductive member in the control panel so as to position the engaging pad. A piece movably extends through a through hole in the magnetically conductive member and a positioning hole defined through the control panel, and is pressed by the engaging pad. A switch is located in the control panel and the piece pushed an arm of the switch. The piece moves upward to release the arm of the switch to shut off the treadmill when the user falls and pulls the engaging pad away from the control panel.
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