| 摘要 |
The archery bow sighting and tuning apparatus consists of a telescoping base assembly held in a vertical position by a base. A standard is slidable within the telescoping base assembly. The standard is lockable once properly positioned. A base plate is rotatably attached to the top end of the standard. The base plate is lockable in a fixed position on the standard. An elevation plate member is pivotally attached to the base plate. A level adjustor pivots and holds the elevation plate member in regards to the base plate. A transition mounting bracket is rotatably attached to the elevation plate member. A transition enclosure is attached to the transition mounting bracket. In this manner the transition enclosure is rotatable about the elevation plate member. A elevation adjusting rod is used to control the rotation of the transition mounting bracket for the horizontal positioning of the transition enclosure. A transition piece is slidable within the transition enclosure. The transition piece has extensions extending outward from the sides of the transition enclosure. One is for a position indicator and the other is for mounting a trigger release. A transition shaft slides the transition piece within the transition enclosure as the shaft is rotated. The transition shaft can be rotated manually or by an electric motor. A bow mounting assembly is attached to the forward end of the transition enclosure for the mounting of a bow to the apparatus. A bow is mounted in the bow mounting assembly. The bow string is then attached to the trigger release. As the transition piece is drawn back by the rotation of the transition shaft, the string is drawn back to the proper draw length of the bow as indicated by the draw length indicator. Windage, level and elevation adjustments are made as appropriate for sighting the bow sights. The trigger is operated to shoot an arrow from the bow. The geometry of the bow can be exactly repeated and duplicated for sighting the bow sights and for the tuning of the bow itself.
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