US2940758A - Arrowhead - Google Patents

Description

June 14, 1960 J. A. RICHTER ARROWHEAD `Filed Jan. 2, 1958 INVENTOR FTQ- 5 LZHV '5 7 57m-H75@ BY @MATTORNEY United States Patent Oice 2,940,758 Patented June 14, 1960 ARROWHEAD John A. Richter, 1826 Grovedale St., Jackson, Mich. Filed Jan. 2, 1958, Ser. No. 706,747 6 Claims. (Cl. 273-1065) The invention relates to arrow head structure and particularly pertains to arrow heads which may be interchangeably assembled upon a given shaft.

Archery requirements necessitate the use of various types of arrow heads for diierent purposes such as hunting, target practice and iield shooting. As the usual method of attaching the arrow head to the shaft is a permanent connection the archer must possess a complete arrow for each type of head desired resulting in a considerable investment for bulky, unwieldy equipment. Also, as the arrow head is often damaged by contact with a stone or other hard object, the entire arrow must be discarded when only the tip or blade of a permanently connected head is damaged. To increase the versatility of arrow shafts and simultaneously decrease the replacement cost of damaged arrow heads, it is an object of the invention to provide an arrow head construction which permits various types of heads to be interchangeably afxed to a given arrow shaft.

A further object of the invention is to provide an arrow head of easily assembled components whereby damaged components may be conveniently replaced without the use of special skills or tools.

Another object of the invention is to produce an arrow head which may be readily removed and dismantled from the arrow shaft during transit and for cleaning purposes.

These and other objects of the invention will become apparent when viewed with regard to the following specication and accompanying drawings wherein:

Fig. l is an exploded disassembled view of the components of one embodiment of an arrow head incorporating the principles of the invention,

Fig. 2 is a cross-sectional elevational View of the arrowhead of Fig. l when assembled,

Figs. 3 and 4 are cross-sections of the arrowhead taken along the lines lli-III and IV-IV, respectively of Fig. 2, and

Figs. 5 and 6 are partial cross-sections of various types of arrow tips which may be interchangeably used with the ferrule of the invention.

The basic member of the interchangeable arrowhead system employed by the invention is the cylindrical ferrule which is formed with an axial threaded bore 12 and internally tapered at one end. A tapered arrow shaft 16 may be inserted into ferrule 10 and rotated upon engagement with threads 12 whereby the fibers of the shaft are compressed in the area 14 and a iirm connection between ferrule 10 and shaft 16 is effected.

A preferred type of hunting arrowhead is shown in Figs. 1-4 which may be aixed to the ferrule 10. The hunting head consists of an elongated bullet shaped body 18 formed with coaxial threaded projections 20 and 22 at the forward and rear ends, respectively. A series of longitudinal slots 24 are cut into body 18 evenly spaced about the periphery thereof. The embodiment illustrated is provided with three slots. However, any number of slots may be used depending on the number of blades desired, three slots positioned 120 apart or four slots separated by being the most common form. The tip 26 of the arrowhead is tapered to a sharp point and provided with a threaded hole 28 in the base for threaded connection to the projection 20.

The blades 30 of the head are of planar triangular configuration with a pair of integral lips 32 and 34 extending from the lower edge. Thus, the head may be assembled as seen in Fig. 2, where the blades 30 are inserted into slots 24, the tip 26 is screwed onto projection 20 and the projection 22 is threaded into the ferrule 10 atiixing the entire arrowhead to the shaft. The depth of slots 24 is such that the slots extend into the projections 20 and 22 whereby the tip 26 will overlap the lip 32 and the ferrule 10 will overlap the lip 34. Thus, the blades 30 are firmly held in the slots 24.

The ease of assembly of the above described arrowhead will be readily apparent, the head may be dismantled for general handling or should the tip or a blade break or bend, replacement of the damaged component may be readily accomplished without special tools or skills. The ferrule 10 and body 18 may be machined of aluminum or other light weight material while the tip 26 and blades 30 are preferably made of steel for best wear and impact resistance characteristics. By using bodies having variously arranged slots the hunter may quickly change from a 'two to a three or four bladed arrowhead as desired.

As the ferrule 10 is formed with threads 12. a variety of arrowheads may be quickly attached to the shaft 16 simply by providing an arrowhead Awith a threaded connection to mate with threads 12. Examples are shown in Figs. 5 and 6 wherein a target tip 36 and blunt tip 38 are provided with a threaded projection 40 for cooperation with the threads of ferrule 10. Thus, the heads of Figs. 1, 5 and 6 may be selectively and quickly attached to a given arrow shaft.

Other fastening means than a thread may be used at projection 20 to aix the tip 26 thereto, thus, a type of snap ring connection or press lit may be employed, if desired.

It will be understood that various modifications to the disclosed embodiments may be apparent to those skilled lin the art ywithout departing from the spirit and scope of the invention.

I claim: r

1. An arrowhead assembly for attachment to an arrow shaft comprising in combination, a ferrule adapted to be aflixed to said shaft, an elongated body member removably secured to one end of said ferrule coaxial thereto, at least one slot longitudinally formed in said body, a removable blade seated in said slot projecting from said body, a tip removably secured to the other end of said body and means carried by said blade overlapped by said ferrule and said tip retaining said blade in said slot whereby said blade may be removed from said slot upon removal of said tip from said body,

2. An arrowhead assembly comprising in combination, a ferrule adapted to be affixed to an arrow shaft, a threaded bore for-med in lsaid ferrule, an elongated body member, said body member provided with coaxial front and rear threaded projections, at least one slot formed in said body extending the length thereof, said' rear body projection mating with the threads of said ferrule bore, a blade Awithin said slot projecting from said body, a tip having a threaded bore adapted to be threaded upon the front projection of said body, means carried by said blade cooperating with said fe e and said tip retaining said blade in said slot.

3. An arrowhead assembly comprising in combination, a ferrule adapted to be aixed to an arrow shaft, a coaxial bore formed in said ferrule, threads formed in said bore adjacent one end thereof, said bore being tapered at the other end, an elongated body member provided With front; and rear, coaxial threadedjprojections, atleast one Y rear bdy projeetion being threade'dnt said ferrlle, --a

blade said slot projecting from'said body, a tip having a'theaded. bore adapted to` be. threaded? upon saicb 5 'ontd'iodyY projection andV lips formed onV said blade, adapted'to. be overlapped by` s'aidtip, and ferrule whereby said blade is retained in said slot( 4. In'anarroyhead. assemblyas in claim 3 wherein Y two slot and blade sets are positioned at opposite sidesL 10 of said body member;

"5.In an arrowhead assembly as in claim 3 wherein three slot and blade sets are positioned at 120 4intervals about theY periphery of said body.

-' `6: In a arrowhead assembly' as 'in Claim `3` "Where-ii1 f9.1; 12@ aad. blaft@ ses are nqsifaned at, SQ intervals about the periphery of said body.Y

References Cited inthe le of this patent UNITED STATES l`PA"1`]: 7J.\I"I`S 2,373,216 Zwickey Apr. 10, 1945l 2,568,417 Steinbacher Sept. 18, 1951 2,589,137 Ramsey V .A Y Mar. 11, 1952 2,789,465 McDonald Apr. 23, 1957 OTHER REFERENCES Areherymagazine for September 1957, page 50 cited.

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