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Publication numberUS3741542 A
Publication typeGrant
Publication dateJun 26, 1973
Filing dateFeb 11, 1971
Priority dateFeb 11, 1971
Publication numberUS 3741542 A, US 3741542A, US-A-3741542, US3741542 A, US3741542A
InventorsKarbo R
Original AssigneeBrunswick Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Arrowhead with removable blades
US 3741542 A
Abstract
A readily disassemblable hunting arrowhead including a first blade engaged in a slot communicating with the front end of the collet and a second blade, orthogonal to the first, engaged in a second slot communicating with the rear end of the collet. Rearwardly and inwardly extending portions of the blades form wedge shaped elements which are engaged and wedged onto the collet by a beveled ferrule threaded onto the rear of the collet. There is a windsplit attached to the collet in front of each side edge portion of the second blade.
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Description  (OCR text may contain errors)

United States Patent 1 1 Richter 273/1065 B Karbo June 26, 1973 4] ARROWHEAD WITH REMOVABLE BLADES 2,289,284 7/1942 Chandler 273/1065 B [75] Inventor: Richard S. Karbo, Whittier, Calif.

Przmary Examiner-Richard C. Pmkham [73] Ass1gnee: Brunswick Corporation, Chicago, Ill. Assistant Examiner pau] Shapiro 22 Filed: F 11 1971 I Attorney- Donald Olexa, JOhl'l Heimovies t a1. [211 App]. No.: 114,586 [57] ABSTRACT A readily disassemblable hunting arrowhead including [22] 2751:3650]; a first blade engaged in a Slot communicating with the d "5 5 B front end of the collet and a second blade, orthogonal [5 1 0 to the first, engaged in a second slot communicating R f Ci d with the rear end of the collet. Rearwardly and in- [56] e creams wardly extending portions of the blades form wedge UNITED STATES PATENTS shaped elements which are engaged and wedged onto 2,912,247 11/1959 Doonan 273/1065 B the collet by a beveled ferrule threaded onto the rear 2,829,894 v 4/1958 Henkelg 273/ 106-5 B of the collet. There is a windsplit attached to the collet 2,909,372" lo/19519 'N r- 273/106-5 B in front of each side edge portion of the second blade. 3,614,103 10/1971 Carroll 273/1065 B 2,940,758 3 Claims, 3 Drawing Figures 1 ARROWHEAD WITH REMOVABLE BLADES BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to archery equipment and more particularly to arrowhead constructions.

2. Description of the Prior Art The arrowhead of the present invention is an improvement over an arrowhead construction described in U. S. Pat. application Ser. No. 47,219 filed June 18, 1970 now abandoned. In that application the arrow head comprised a collet having a frontal point secton and four segmental sections extending rearwardly therefrom. A pair of blade members are positioned to extend through the slots formed between the collet segments and extend radially outward therefrom. A collar is provided to be threadedly connected to the rear extremities of the segments to hold the segments together and secure the blades thereto.

A shortcoming with the arrowhead of the prior application is that the frontal point section of the collet is not sharp enough to have the desired piercing quality. As a result, the blades, which have novel razor cutting edges, do not have the opportunity to functionproperly to provide deadly cutting edges for killing game.

Another shortcoming with the arrowhead of the abandoned application is that the interchanging of the blades is cumbersome. Moreover, since these blades are not secured to the collet until the collar is installed, the blades would quite often fall out and become lost during assembly.

SUMMARY OF THE INVENTION The present invention overcomes the abovementioned shortcoming by providing an arrowhead having a greatly improved frontal point section for a greater piercing capability and a novel interconnecting means for greater ease of assembly. The improved arrowhead comprises an elongated substantially cylindrical collet having a slotted frontal area and a threaded rear extremity. A first triangular blade is provided having a frontal point section and two legs extending rearwardly therefrom. The blade further comprises a cutout portion having an interior apex where the two legs originate. The interior apex of the blade is adapted to extend into the slotted frontal area of the collet while the legs are adapted to extend longitudinally along the sides of the collet. The interior of the legs form a'pair of foot sections which are adapted to snap into engagement with a pair of axial grooves formed near the rear end of the collet. The exterior edges of the blade extending from the apex of the frontal point rearwardly along the exterior edges of the legs are finely honed to a razor sharpness to enhance the piercing and cutting capabilities of the arrowhead. The rear end of the collet further comprises a transverse slot separating that portion of the collet into two segments. A second blade is adapted to extend into the slot with the blade having two razor edges extending radially outward therefrom for cutting purposes. A ferrule is provided to be connected to the threaded end of the collet with the ferrule further comprising an annular flanged portion which is adapted to extend over the foot portions of the first blade and portions of the second blade for securing the blades to the collet.

An important advantage of the present invention is the piercing and cutting portions of the arrowhead are integral in a single removable blade. Not only are both sections honed to a razor sharpness, but if they become dull, the blade can be easily interchanged with a new blade.

Another important advantage of the present invention is that the blade changing can be accomplished easier and quicker than heretofore possible.

The features of the present invention which are believed to be novel are set forth with particularity in the appended claims. The present invention, both as to its organization and manner of operation, together with further objects and advantages thereof, may best be understood by reference to the following description, taken in connection with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of the arrow head assembly of the present invention;

FIG. 2 is an elevational view of the arrowhead in its assembled form; and

FIG. 3 is a sectional view of the arrowhead taken along line 33 of FIG. 2.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, FIGS. 1 3 show a detachable arrowhead assembly, generally indicated by arrow 10 comprising a substantially cylindrical collet 11 having a first and second blades 13 and 1S respectively, mounted thereon. The collet 11 includes a slotted frontal area 17 and a threaded rear extremity 19. The first blade 13 is triangular in shape having a frontal point section 21 and a pair of legs 23 extending rearwardly therefrom. The exterior edges 24 of the blade 13 extending from the apex of the frontal point rearwardly along the exterior edges of the legs 23 are finely honed to a razor sharpness to enhance the piercing and cutting capabilities of the arrowhead 10.

The interior of the first blade 13 includes a triangular cut-out portion 25 in which the apex, where the two legs 23 originate, is adapted to extend into the slotted frontal area 17 of the collet 11. The collet 11 further includes a pair of axial grooves 27 which are adapted to receive two inwardly extending foot portions 29 of the legs 23. Because of their flexibility, the legs 23 are adapted to snap into engagement with the grooves 27 after the interior apex of the blade is inserted into the slotted frontal area 17 of the collet 11. As can be seen, the first blade 13 not only comprises the cutting edges 24, but it further comprises the frontal point section 21 integrally formed therewith. The advantage of this is that when the blade 13 becomes worn, a new blade can be installed not only having sharp cutting edges, but having a sharp point also.

The collet 11 further comprises a transverse slot 31 formed through the rearward portion thereof for receiving the second blade 15.

The second blade 15 comprises a recessed portion 33 adapted to extend to the forward end of the slot 31 with the forward portions of the recess initiating a pair of radial cutting edges 35 extending radially outward therefrom. The rearward portion 37 of the second blade 15 is adapted to extend into the transverse slot 31 adjacent the threaded end 19 of the collet 11.

A pair of windsplits 38 is also formed on the forward end of the collet 11 and is positioned directly in front of the cutting edges 35 of the blade 15 for protecting the points 40 of the blade 15.

The arrowhead assembly further comprises a ferrule 39 which is adapted to be threadedly connected to the collet 11. The ferrule 39 further comprises a frontal annular flanged portion 41 which is adapted to extend over the portion of the collet which contains the rear portion 37 of the second blade and the foot portions 29 of the first blade 13. For securing these portions to the collet, the exterior cylindrical surface 43 of the ferrule 39 is adapted to be epoxyed into a bore 45 formed within the frontal end of an arrow shaft 47.

In assemblying the arrowhead assembly, the first blade 13 is mounted on the collet 11 in the manner described above. Afterwhich, the second blade 15 is inserted through the transverse slot 31 with both blades being secured thereto by the ferrule 39 which is threadedly connected to the collet 11.

An advantage of the present invention is that when the blades 13 and 15 become worn, they can be easily replaced by simply separating the collet 11 from the ferrule 39 and removing the first and second blades 13 and 15 from the collet ll. Afterwhich, a new set of blades 13 and 15 can be easily mounted on the collet 11 before it is threaded back onto the ferrule 39.

It should be noted that various modifications can be made to the apparatus while still remaining within the purview of the following claims.

What is claimed is:

l. A readily disassemblable hunting arrowhead comprising:

an elongated collet having a first axial slot communicating with the front end thereof and a second axial slot substantially orthogonal to said first slot and communicating with the rear end thereof,

a first substantially triangular blade comprising the tip of the arrowhead and having a rear undercut portion adapted to fit within said first slot,

a second substantially triangular blade adapted to fit within said second slot, said first and second blades having portions extending rearwardly of the cutting edges thereof, said rearwardly extending portions of said first and second blades are outward of said collet and inclined radially inwardly and toward the rear end thereof, and

means for retaining said blades in a position within said collet including means encompassing said rearwardly extending portions removably engageable upon the rear end of said collet for retaining said blades in place, said means further including a ferrule having its forward inner surface beveled substantially parallel to said incline so as to engage said inclined portions and wedge them inwardly upon being engaged upon said collet.

2. A readily disassemblable hunting arrow comprisan elongated collet having a first axial slot communicating with the front end thereof and a second axial slot substantially orthogonal to said first slot and communicating with the rear end thereof,

a first substantially triangular blade comprising the tip of the arrowhead and having a rear undercut portion adapted to fit within said first slot,

a second substantially triangular blade adapted to fit within said second slot, said first and second blades having portions extending rearwardly of the cutting edges thereof, said second blade comprising a unitary structure including a body portion adapted to ride within said second slot and two side edge portions each extending along the surface of said collet from a point forwardly of said second slot and angling radially outward and rearwardly therefrom, and

means for retaining said blades in position within said collet including means encompassing said rearwardly extending portions and removably engageable upon the rear end of said collet for retaining said blades in place, said collet includes a plurality of windsplints each terminating at the most forward point of the side edge portion of said second blade.

3. A readily disassemblable hunting arrowhead comprising:

a. an elongated collet having a first axial slot communicating with the front end thereof and a second axial slot substantially orthogonal to the first slot and communicating with the rear end thereof;

b. a first substantially triangular blade comprising the tip of the arrowhead and having a rear undercut portion adapted to fit within the first slot;

0. a second substantially triangular blade adapted to fit within the second slot, the first and second blades having portions extending rearwardly of the cutting edges outward of the collet and inclined radially inwardly and toward the rear end thereof; and,

d. a ferrule removably engageably mounted on the rear end of the collet, the ferrule having its forward inner surface beveled substantially parallel to the inclined portions of the blades so as to engage the inclined portions and wedge them inwardly upon being engaged upon the collet. III I I.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2289284 *Feb 19, 1940Jul 7, 1942Chandler Tommie BInterchangeable arrowhead
US2829894 *Jan 10, 1956Apr 8, 1958Bear Archery CompanyArrowhead
US2909372 *May 7, 1957Oct 20, 1959Neri Armand AArrowheads
US2912247 *Nov 14, 1957Nov 10, 1959William DoonanArrowhead construction
US2940758 *Jan 2, 1958Jun 14, 1960Richter John AArrowhead
US3614103 *Nov 24, 1969Oct 19, 1971Carroll Cornelius FArrowhead
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3868114 *Aug 13, 1974Feb 25, 1975Victor Comptometer CorpArchery arrow with shaft supporting arrow head assembly
US3910579 *Jun 17, 1974Oct 7, 1975Sprandel Harold RSwivel-mounted hunting arrowhead
US3915455 *Oct 18, 1974Oct 28, 1975Savora Maurice WBroadhead arrowtip having a single unit solid body receiving removable very sharp quality cutting blades extending from very nearby the tip to the arrow shaft
US3995860 *Jan 9, 1976Dec 7, 1976Manspeaker Edward LArrowhead with removable blades
US4029319 *Apr 16, 1976Jun 14, 1977Outers Laboratories, Inc.Arrowhead assembly having detachable locking means
US4036499 *Nov 26, 1975Jul 19, 1977Sherwin Donald DArrow broadhead
US4093230 *Nov 2, 1976Jun 6, 1978New Archery Products Corp.Arrowhead
US4203601 *May 30, 1978May 20, 1980New Archery Products Corp.Arrowhead
US4349202 *Jul 10, 1981Sep 14, 1982Fad Company, Inc.Arrowhead with readily replaceable blades
US4381866 *Apr 1, 1982May 3, 1983Simo Miroslav AArrowhead with removable blades
US4452459 *Sep 17, 1982Jun 5, 1984William DoonanArrowhead
US4558868 *Jan 11, 1984Dec 17, 1985John MusacchiaArrowhead with interchangeable elements
US4616835 *Apr 24, 1985Oct 14, 1986Trotter George HArrow tip
US4928969 *Aug 7, 1989May 29, 1990Nagatori Wesley SArrowhead
US5145186 *Jan 4, 1991Sep 8, 1992Richard MaleskiBroadhead for an arrow and method of securement
US5160148 *Mar 10, 1992Nov 3, 1992Musacchia Sr JohnBroadhead arrowhead
US5165697 *Jul 11, 1991Nov 24, 1992Lauriski Stanley EBroadhead archery hunting point
US5354068 *Oct 22, 1991Oct 11, 1994Richard MaleskiBroadhead for an arrow and method of securement
US5417440 *May 13, 1994May 23, 1995Barrie; RobertBroadhead arrow tip
US5494298 *Dec 23, 1993Feb 27, 1996Maleski; RichardBroadhead for an arrow and method of securement
US5516117 *Oct 18, 1994May 14, 1996Rangel; LouisDual-purpose arrow shaft insert
US5823902 *Oct 8, 1997Oct 20, 1998Guest; Elmer F.Nock assembly for arrows
US6540628Oct 4, 2000Apr 1, 2003Muzzy Products CorporationBroadhead arrowhead with adjustable blade retention
US6669586Jan 15, 2003Dec 30, 2003Barrie Archery LlcExpanding broadhead
US6863630 *Jul 30, 2003Mar 8, 2005Larry R. WatkinsHunting arrowhead with bleeder ring
US6910979Oct 17, 2003Jun 28, 2005Bruce BarrieExpandable broadhead
US7771298Sep 21, 2006Aug 10, 2010Field Logic, Inc.Expandable broadhead with rear deploying blades
US8100788 *Dec 14, 2007Jan 24, 2012Sanford Chris GArrowhead
US8197367Jul 1, 2010Jun 12, 2012Out Rage, LlcExpandable broadhead with rear deploying blades
US8512179Apr 9, 2012Aug 20, 2013Out Rage, LlcExpandable broadhead with rear deploying blades
USRE44144Jun 27, 2007Apr 9, 2013Out Rage, LlcExpandable broadhead
Classifications
U.S. Classification473/584
International ClassificationF42B6/00, F42B6/08
Cooperative ClassificationF42B6/08
European ClassificationF42B6/08