| 摘要 |
A planar board has a cam that cooperates with two resilient plates to selectively open and close the plates. When the cam is rotated to a first position, the plates are open to enable placing a fishing line between them. Rotating the cam to a second position closes the plates to clamp the fishing line. The clamping force is adjustable. The planar board is pulled by a boat only by the fishing line. Upon a strike, the fishing line slips from between the plates, and the planar board is released from the fishing line to float away. The cam can be rotated to a third position to clamp the fishing line between the plates and to simultaneously form an enclosed space between the plates and a finger on the cam. Upon a strike, the fishing line slips from between the plates but is captured in the enclosed space. The planar board then remains retained to the fishing line and is pulled to the boat with the fish. The clamping force on the fishing line can be adjusted such that the fishing line does not slip from between the plates upon a fish strike.
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