Towrope winch safety shutoff switch
First Claim
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1. A towrope winch system comprising:
- a winch configured to wind a rope; and
a safety shutoff device which deactivates the winch if, during winding of the rope, a foreign object enters a winch intake along with the rope to actuate the safety shutoff device, in which the safety shutoff device further comprises;
a compression block having a hole defined therein through which the rope, but not the foreign object may pass;
a compression switch block having a hole defined therein through which the rope may pass and proximal to the compression block, the compression block and compression switch block being biased apart;
a compression switch coupled to the compression switch block and configured to be actuated when the compression block abuts the compression switch block because said foreign object has moved said compression block against said bias into contact with said compression switch.
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Abstract
A towrope winch with a safety shutoff device includes a winch configured to wind a rope; and a safety shutoff device which deactivates the winch if, during winding of the rope, a foreign object enters a winch intake along with the rope to actuate the safety shutoff device.
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Citations
20 Claims
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1. A towrope winch system comprising:
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a winch configured to wind a rope; and a safety shutoff device which deactivates the winch if, during winding of the rope, a foreign object enters a winch intake along with the rope to actuate the safety shutoff device, in which the safety shutoff device further comprises;
a compression block having a hole defined therein through which the rope, but not the foreign object may pass;
a compression switch block having a hole defined therein through which the rope may pass and proximal to the compression block, the compression block and compression switch block being biased apart;
a compression switch coupled to the compression switch block and configured to be actuated when the compression block abuts the compression switch block because said foreign object has moved said compression block against said bias into contact with said compression switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A watercraft for towing a board rider, said watercraft comprising:
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a winch configured to wind a rope under control of said board rider; and a safety shutoff device which deactivates the winch if, during winding of the rope, a foreign object enters a winch intake along with the rope so as to actuate the safety shutoff device, in which the safety shutoff device further comprises;
a compression block having a hole defined therein through which the rope, but not the foreign object may pass;
a compression switch block having a hole defined therein through which the rope may pass and proximal to the compression block, the compression block and compression switch block being biased apart;
a compression switch coupled to the compression switch block and configured to be actuated when the compression block abuts the compression switch block because said foreign object has moved said compression block against said bias into contact with said compression switch. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of operating a towrope winch with a safety shutoff device comprising:
- with said safety shutoff device, deactivating the towrope winch if, during winding of a rope, a foreign object enters a winch intake along with the rope so as to actuate the safety shutoff device, wherein the safety shutoff device further comprises;
a compression block having a hole defined therein through which the rope, but not the foreign object may pass;
a compression switch block having a hole defined therein through which the rope may pass and proximal to the compression block, the compression block and compression switch block being biased apart;
a compression switch coupled to the compression switch block and configured to be actuated when the compression block abuts the compression switch block because said foreign object has moved said compression block against said bias into contact with said compression switch. - View Dependent Claims (17, 18, 19, 20)
- with said safety shutoff device, deactivating the towrope winch if, during winding of a rope, a foreign object enters a winch intake along with the rope so as to actuate the safety shutoff device, wherein the safety shutoff device further comprises;
Specification