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Missile projecting aid attachment for archer's bow
| Details |
Inventors: Adams, Billy D.;
Assignee:
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Browne; William R.
Attorney, Agent or Firm: Smyth, Pavitt, Siegemund, Jones & Martella
The attachment includes a tubular barrel through which a ball or other missile is projected by the force of the bowstring. The tubular barrel is rigidly attached at its muzzle end to the central portion of a bow, and is provided with elongated slots along its upper and lower surfaces through which the bowstring passes. Within the barrel a slidable carrier is attached to the bowstring. The carrier releasably holds the missile even when the barrel is tilted downward as well as when the bow is drawn. When the bowstring is released, the carrier and missile are driven toward the muzzle of the barrel; but, when the bowstring and attached carrier decelerate as they approach the muzzle, the momentum of the missile causes it to pull free of the carrier and to continue through the muzzle toward the target, while the carrier remains behind in the barrel. The attachment is removable from the bow and adjustable with respect to it. |
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DETAILED DESCRIPTION The present invention is a removable attachment which can be affixed to an archer's bow for use in projecting missiles of various shapes with considerable force and accuracy.
In the present invention, the muzzle end of a tubular barrel is rigidly, but removably, affixed to the central portion of the bow, in the general region over which an arrow would normally be held.
Elongated slots extend through the top and bottom surfaces of the barrel along a substantial portion of its length.
The bowstring passes vertically through these slots, which are of sufficient length to accomodate the normal movement of the bowstring.
Within the tubular barrel a hollow cylindrical carrier is provided.
The carrier, in a preferred embodiment, is attached to that portion of the bowstring which extends transversely through the barrel, and the carrier is slightly smaller than the bore of the barrel so that the carrier is freely slidable within the barrel along a substantial portion of its length.
The mass of the carrier is relatively small, and it is composed of a material which slides with relatively low friction against the inside of the barrel.
The purpose of the carrier is to retain the projectile so that it does not roll or slide toward the muzzle of the barrel when the barrel is pointed downward.
The carrier also yieldably holds onto the missile while the bow is being drawn; the bowstring, carrier and missle being pulled together rearwardly away from the muzzle.
When the bowstring is released, the attached carrier and the missle are accelerated forward toward the muzzle, and the missle rapidly gains speed.
The bowstring and the attached carrier begin to decelerate after they have passed through their equilibrium position, but the momentum of the missile urges it forward, pulling it free from the carrier and permitting it to proceed through the muzzle and away toward the target.
In the preferred embodiment, the carrier is attached to the bowstring and remains in the barrel after the missile has been projected
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