Broadhead handle and sharpening apparatus

• US 20030172463A1
• Filed: 03/11/2003
• Published: 09/18/2003
• Est. Priority Date: 03/12/2002
• Status: Active Grant

• Current Assignee: Anthony Marfione
• Original Assignee: Anthony Marfione
• Inventors: Marfione, Anthony
• Granted Patent: US 6,877,179 B2
• Time in Patent Office: Days
• US Class Current: 7/158
• CPC Class Codes: B26B 11/00 Hand knives combined with other implements, e.g. with corkscrew, with scissors, with writing implement combined table-ware A47G21/06
• CPC Class Codes: B26B 5/00 Hand knives with one or more detachable blades

Abstract

A handle to grip a broadhead arrow head enabling the handle and arrow head combination to form a knife suitable for hunting purposes. The handle includes a release button, a wrench, and a first and a second cavity. The first cavity accepts a shaft on the rear of the broadhead to aid in connecting the broadhead and handle. The release button activates a grip mechanism which locks the broadhead in the handle, while the wrench serves to aid in loosening or tightening the broadhead to the arrow shaft. The second cavity houses a sharpening guide which attaches to the handle and guides a sharpening rod at the correct angle to sharpen the broadhead.

Claims

1. A knife formed by the combination of an arrow head and knife handle, wherein:

said knife handle includes a first and a second end and a central longitudinal axis extending from said first end to said second end, said central longitudinal axis of said handle being positioned in the horizontal plane to facilitate description, said handle having a vertical dimension in the vertical plane about said central longitudinal axis and a horizontal dimension in the horizontal plane about said central longitudinal axis of said handle to provide a volume with an outside surface that may be gripped by a hand, said outside surface having two sides with each side being generally in a different vertical plane and a top and bottom with each generally being in a different horizontal plane, said handle having a first slot in said first end of said handle, said first slot in said first end of said handle having a longitudinal axis, said longitudinal axis of said first slot being positioned generally vertically,

said arrow head being generally flat and triangularly shaped with three tip and three sides referred to as edges, one of said tip being designated the arrow point, said arrow head having two edges meet in the arrow point and said two edges being sharpened to form cutting edges of the arrow head, said arrow head having a central axis running through said arrow point and extending generally midway between said cutting edges, said arrow head having an arrow head shaft extending from the one remaining edge of the arrow head that is not sharpened and said arrow head shaft extending generally outwardly of said arrow head along said central axis of said arrow head, said arrow head shaft and an adjacent portion of said arrow head being positioned generally vertically, said adjacent portion of said arrow head and the arrow head shaft fitting closely within said first slot in said knife handle to prevent rotational motion of said arrow head with respect to said handle and said handle further comprising within said first slot means for locking said arrow head shaft in said handle to form a complete knife from the combination of said handle and said arrow head.

2. A knife as claimed in claim 1 wherein said means for locking said arrow head shaft in said handle, comprises:

(a) a depression in said arrow head shaft,

(b) a bar fitting in said depression in said arrow head shaft, said bar being moveably attached to said handle and being movable from a first position within said depression in said arrow head shaft to a second position away from said arrow head shaft to respectively lock said arrow head to said handle and to unlock said arrow head from said handle.

3. A knife as claimed in claim 2 further comprising:

(a) A button which is moveably attached to said handle, said button having a first and a second end, the first end of said button being designated the contact surface, said contact surface being exposed outside said handle'"'"'s outside surface and said button being moveable from a first position where said contact surface of said button resides proximate the outside surface of the handle to a second position where the button is depressed into the handle and away from the outside surface of the handle, said button having its second end in contact with said first end of said bar, and

(b) a spring having a first and a second end with the second end of said spring being in contact with said handle and the first end of said spring being in contact with said second end of said bar to urge said bar and said button from their second positions to their first positions.

4. A knife as claimed in claim 1, wherein said arrow head shaft includes screw threads on the shaft at the shafts end away from said arrow head blade to enable said arrow head to be attached to an arrow shaft by threading said screw threads into the arrow shaft, said arrow head containing at least two adjacent and generally parallel flat surfaces to serve as gripping surface for a wrench, said handle containing on its second end two adjacent projections with inside opposing surface being flat and parallel and said opposing surfaces closely accepting said adjacent parallel flat surfaces on said arrow head to function as a wrench to tighten said arrow head into an arrow shaft to provide a compete arrow.

5. A knife as claimed in claim 1 further comprising:

(a) a second slot in said handle, said second slot being located in one of said sides of the handle and passing through said handle to the opposite side of said handle, said slot being positioned proximate the first end of the handle and proximate the top of the handle and being oriented at an angle of between 30 and 60 degrees with respect to the central longitudinal axis of said handle when measured with respect to the end of the central longitudinal axis of the handle located at the first end of the handle,

(b) a sharpening guide having a first and a second end, said guide formed of sheet material and fitting closely within said second slot, said guide extending through said slot to expose said first end of said sharpening guide on one side of said handle and said second end of said sharpening guide on the opposite side of said handle, said sharpening guide having a first hole through said guide proximate its first end and a second hole proximate its second end, said first and second holes being exposed outside of said handle when said guide is placed through said handle, said holes serving to support and guide a sharpening rod at a preferred sharpening angle with respect to the blade when sharpening, and

(c) means for releasably locking said guide in said handle.

6. A knife as claimed in claim 5 wherein said sharpening guide includes a depression on one side of said guide and said handle contains a spring loaded, round headed pin moveable attached to said handle and contained within said second slot to inject said pin into said depression in said guide to hold said guide within said second slot during sharpening and to allow withdrawal of said pin to occur from cam action of said depression against said round headed pin when pressure is applied to remove said guide from said second slot.

7. A knife as claimed in claim 6 wherein said depression in said guide is located proximate the midpoint between the ends of said guide.

8. A knife as claimed in claim 6 wherein said guide contains a plurality of depressions and said handle contains a plurality of round headed pins in said slot positioned to be place in said depressions to releasable hold said guide in said handle.

9. A knife as claimed in claim 5 wherein said knife handle contains a cavity in its second end, said cavity accommodating said sharpening guide by accepting more than 75% of said guide within said cavity.

10. A knife as claimed in claim 9 wherein said cavity contains a magnet to releasably hold said guide within said cavity.

11. A knife as claimed in claim 1 wherein said knife contains two projections from its second end which form its second end which have inside parallel opposing surfaces that serve as a wrench to tighten said arrow head on an arrow shaft.