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Company Balestrieri in PisaThe BelestraThe Crossbow currently used in the competitive competitions is her/it so said 'bench crossbow.' It is gifted, over that of the devices of push of the Verretta (competition arrow), from a fit safety mechanism with the purpose to avoid that accidentally the Verretta departs. Cliccate on the parts of the crossbow to see the description:
Element in iron of support to earth during the phase of loading and point of support on the bench during the draught. It is set to the anterior extremity of the Crossbow.
And' the connection in iron among the stirrup, the arc and the teniere.
From a wood beam shaped of walnut-tree national seasoned part the job of joint to get the carrying structure of the crossbow. The work of precision to chisel must get the joint for the plates, the lever of release, the box center of the walnut and all the other elements of the crossbow. Once finished the technical part the teniere you/he/she is dignified and graced by carvings that they actually personalize the object to make him/it only and precious.
The part most important of the crossbow, from his/her perfection big part of the precision of the draught depends. The workmanship of the arc begins from a rod of harmonic steel, through the forging to the maul it is gotten, a raw bar that assumes the definitive geometry after a rectification. With the sagomatura you/he/she is bent the arc that after the welding of the buttonholes to hook the ropes it passes to the tempering and the following workmanships.
In hemp, flax or twisted cotton, with a proportional number of threads to the power of the arc, it is the element that transmits the motion to the Verretta.
Lever of release, walnut-tree, sure and aim The lever of release shaped is turned according to the aesthetics of the teniere and it follows the outline of it, it binds the walnut through a strut that prevents the rotation of the same walnut; you are enough to think that in 2,5mm of contact bears the load of 14,5 quintals push of the arc. The walnut, in bronze to the aluminum, it partially emerges from the superior plate and it lodges both the rope in tension that the extremity (breech) of the arrow. The lever of release, in his/her terminal part, you/he/she is bound through in turn a bridge on which a safety mechanism is lodged to the teniere. The plaque of draught (padellino) and the diotra of aim are the essential elements for the empirical calculation of the arc of parable of the arrow, essential for the typical draught from "artillery" that it countersigns the ancient crossbow to the Italian.
Of steel C40s serve to contain the tensions and solicitations of the arc on the mechanics of the crossbow, or they unload the wood from the burden to sustain the power of the same arc. The superior plate is worked so that to contain her/it "flown" of the arrow and the center of the walnut. The inferior plate contains the center of graft of the lever of release. The side plates contain the elements of the release. The incision of the plates equips similarly the aesthetics to the carving of the wood of the teniere.
The Martinetto Composed of a gear and an auction in rack through the rotatory movement of the crank it actually lifts the rope to the position of draught. To lift the rope the martinetto is bound to a fixed point, sets to behind the walnut. The Arrow Through the perfection of this the objective of the shot realizes him. 50 wood cms of seasoned beech tree, a cone steel cable C40 (ferrule), 2 portions of pen and a nail fixed on her/it "belly" (target) they are the components of the arrow. The form of the wood is tapered in the part of point and cylindrical in the stem.
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