Work holders – Plural holders to hold workpieces relative to each other – Fletching jig
Patent
1988-08-02
1989-09-19
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Fletching jig
B25B 120
Patent
active
048674265
ABSTRACT:
An archer's fletching jig is supported by an arrow, on which pre-shaped fletching material is to be arranged at preselected radial spacings of either four fletches at 90 degrees, three fletches at 120 degrees, or four fletches at the combined 75 degrees and 105 degrees, and then to be accurately adhered on the arrow shaft. Different molded part embodiments of these arrow held fletching jigs, each arranged for a specific radial spacing of fletches, all have a respective arrow upper end cap. The latter has a centrally located upstanding nock alignment pin, and the former has a centrally located hole to surround an arrow shaft. On any flat surface, the arrow lower end cap is placed to receive and to hold the nock of an upright positioned shaft of an arrow. Then respective clamp receivers are selectively spaced about the upstanding arrow shaft, and then depending ends are tapered to match a tapered upstanding receiving interior volume of the arrow lower end cap. The selective clamp receivers each have, near the top and near the bottom, a partial vee shaped recess on the interior side to abut an arrow shaft. When the arrow upper end cap is then subsequently lowered in place over their upstanding ends, the clamp receivers are held in place about the arrow shaft, with their bottoms continuously held in place by the arrow lower end cap. Then selected fletch clamps, each filled with a fletch material, having a subsequently applied adhesive, are moved into contact with the arrow shaft, while guided and held in a vertical slot of a fletch clamp. In another embodiment, the clamp receivers have a common integral end and radially expandable other ends, which, when positioned together, are held by a locking ring.
REFERENCES:
patent: 1945416 (1934-01-01), Birchall
patent: 4009875 (1977-03-01), Erlandson
patent: 4366022 (1982-12-01), Coffman
patent: 4653738 (1987-03-01), York
Mattern Jr. Roy E.
Watson Robert C.
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