Accelerating arrow

• US 4,900,037 A
• Filed: 05/08/1986
• Issued: 02/13/1990
• Est. Priority Date: 05/08/1986
• Status: Expired due to Fees

• Current Assignee: Gordon R. Miller
• Original Assignee: Gordon R. Miller
• Inventors: Miller, Gordon R.
• Primary Examiner(s): Shapiro, Paul E.
• Application Number:
  US06/860,855
• Time in Patent Office: 1,377 Days
• Field of Search: 273/416, 273/419, 273/420, 273/428
• US Class Current: 473/586
• CPC Class Codes: F42B 6/06 Tail ends, e.g. nocks, fletching

Abstract

An improved arrow is set forth. In the preferred and illustrated embodiment, the arrow nock is formed at the back end of a telescoping hollow tubular portion. It is received within a cooperative telescoping tubular portion which comprises the shaft of the arrow. A compressible coil spring is placed in the two telescoping portions. On release of the arrow from a bow string, the coil spring is compressed. Before release is completed, the spring absorbs recoil and the arrow is restored to full length. This speeds up the arrow and reduces drop during trajectory.

Claims

1. An elongate arrow having a tip, an elongate shaft behind the tip, and comprising a rearward arrow nock for engaging the string of a bow, internal resilient means within the arrow shaft compressed momentarily on launch of the arrow after engaging the arrow with a bow string in the nock, wherein said resilient means is a compressed coil spring having two opposite ends, and one end is received at a transverse wall and said arrow nock is formed immediately adjacent to said transverse wall, and wherein said resilient means in said shaft momentarily receives and stores energy from the bow string release.

2. The apparatus of claim 1 wherein said arrow shaft has first and second elongate tubular portions telescoped together, and said resilient means is received therein and enclosed within said first and second telescoping portions.

3. The apparatus of claim 2 wherein said resilient means forces said first and second telescoping portions to extend full length when not compressed and said first and second telescoping portions are permitted to telescope on launch from a bow string.

4. The apparatus of claim 3 wherein said telescoping portions interlock by engaging peripheral lips.

5. The apparatus of claim 1 wherein said arrow nock is formed on said transverse wall.

6. The apparatus of claim 5 wherein said arrow nock is transverse across said arrow shaft and internally of said shaft, and said shaft and transverse wall form a closed end tubular portion enclosing said resilient means in contact with said transverse wall.