Fishing line length measuring device for fishing reels

Geometrical instruments – Distance measuring – Sounding type

Patent

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Details

33716, 33763, 242395, A01K 8900

Patent

active

053635655

ABSTRACT:
A fishing line length measuring device to determine the let out or wound up amount of the fishing line based on the number of spool revolutions. The device has a reel, a spool rotatably supported by the reel where the fishing line is wound up, a sensor to detect the revolutions of the spool, an up/down counter to count up or down the pulse signals output from the sensor, a storage means which receives and holds the count values obtained at the up/down counter when the counter counts actual number of spool revolutions during winding or unwinding the fishing line for specified lengths from a certain reference point set on the fishing line, an operation means to determine the line length using the line length formula obtained corresponding to the numbers of spool revolutions for the specified lengths and these actual numbers of revolutions, and an indication unit to indicate the line length determined by the operation means.

REFERENCES:
patent: 4697758 (1987-10-01), Hirose et al.
patent: 4790492 (1988-12-01), Atobe

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