| 摘要 |
Sighting mechanism is provided that enables an archer to make a variable sight adjustment while holding the bow in one hand and gripping an arrow as tensioned by the bow string with the other hand. The sighting mechanism has a vertically movable sighting member mounted on the belly of a bow and a reel or drum mounted on the back of a bow. Connected between the sighting member and the reel are two filaments. One filament operates on the sighting member to move it upwardly when the reel or drum is rotated in one direction, and the other filament operates on the sight member to move it downwardly when the reel is rotated in the opposite direction.
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