| 摘要 |
A braking device for a power winch includes a first driving block having one side fixed with two symmetrical posts having their outer ends respectively cut with a stepped notch and having two accommodating spaces formed between them. A second driving block has one side secured with two symmetrical posts respectively positioned in the accommodating spaces of the first driving block and respectively having their outer ends provided with a stepped notch. A braking spring is fitted around the outer circumference of the posts of the first and the second driving block, having the opposite end respectively formed with a hook end bent inward to be respectively moved in the notches of the first or the second driving block. When the motor is electrically disconnected, the elastic wires of the braking spring are forced by the driving block to expand outward and carry out braking.
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