ARROW HEAD HAVING OGIVE
A projectile is provided, including an arrowhead body formed of a predetermined length and coupled to a tip of an arrow shaft, and at least two blades protruding at equal intervals from an outer circumferential surface of the arrowhead body, and shaped to be curved to a predetermined direction to result in a rotation by air during a flight of an arrow, in which one or more ogives for reducing air resistance are formed on outer ends of the blades. Accordingly, the projectile is provided, which can significantly reduce the air resistance during flight compared to the related arrowheads, and since rotation can be induced in itself by the air encountered during the flight, the rotational force and the straightness of the projectile are greatly enhanced, and as a result, it is possible to improve the accuracy of hitting on targets, and increase the destructive power against the target when hitting the target.
The present disclosure relates to a projectile such as an arrowhead, and more particularly, to a projectile having an ogive, which can form an ogive at a predetermined position of the arrowhead to reduce air resistance and to prevent a reduction of rotational force, thereby increasing the accuracy of hitting and increasing the killing power when hitting a target.
BACKGROUND OF THE INVENTIONIn general, proper rotation of a projectile flying in the air, such as an arrowhead of an arrow, helps the projectile reach the exact position of the target.
In other words, the rotation of the projectile allows the projectile to penetrate the air and overcome the air resistance, so that the straightness of the projectile is maintained and the decrease in the speed of travel is suppressed, thereby allowing the projectile to reach the target.
For example, in the related arrowhead, the rotation is generated by the arrow-feathers during the travel of the arrow, and the whole arrow, including the arrowhead, flies in rotating motion, and the arrow that travels in such rotating motion has a constant trajectory path, enabling it to fly accurately to its target, thereby increasing the destructive power against the target upon hitting the target.
Meanwhile, the related arrowhead has a sharp tip to enhance the penetrating force, but despite the excellent penetrating power, the arrowhead cannot cause fatal wounds to a large target and thus cannot take down the game animals quickly, which is not suitable for hunting purposes.
In consideration of this point, a plurality of blades are provided on the sharp arrowheads, and a broadhead arrowhead is used that induces severe bleeding of a target upon hitting it.
However, since such related arrowhead generates rotational power only by the arrow-feathers during flight, there is shortcoming that the rotational speed is not high, and the straightness of the arrow and destructive power are not satisfactory.
SUMMARY OF THE INVENTIONThe present disclosure has been made in view of the problems occurring in the background art described above, and it is an object of the present disclosure to provide a projectile with an ogive, such that, in a projectile such as arrowheads and the like, an ogive is formed at a predetermined position of the projectile to reduce the air resistance when the projectile is flying, and the projectile can be rotated by the air encountered during the flight, resulting in increased rotational force and straightness of the projectile, improved accuracy of hitting on targets, and increased destructive power leading into increased killing power when hitting the targets.
In an embodiment to achieve the objects mentioned above, a projectile is provided, which may include an arrowhead body formed of a predetermined length and coupled to a tip of an arrow shaft, and at least two blades protruding at equal intervals from an outer circumferential surface of the arrowhead body, and shaped to be curved to a predetermined direction to result in a rotation by air during a flight of an arrow, in which one or more ogives for reducing air resistance may be formed on outer ends of the blades.
Each of the at least two blades may include, on an inner end, a ventilation space through which side winds entering in a direction perpendicular to a travel direction of the arrow are passed, and a partition to block a portion of the ventilation space so that the blades are rotated by the side winds.
The arrowhead body may include an upper body having the ventilation space at a side thereof and connected to the partition, and a coupling shaft integrally formed with a lower portion of the upper body, formed in a cone shape, and coupled to the arrow shaft at a lower end thereof.
According to the embodiments described above, the projectile according to the present disclosure includes a curved blade that is guided by the resistance air into a rotating motion during the flight, so that an arrow with enhanced rotational force can be realized, in which not only the arrow feathers, but also the arrowhead can be rotated, thereby ensuring stable flight while more continuously maintaining straightness, and subsequently enabling accurate hits on the target and also greatly enhanced destructive power upon hitting the target.
In particular, according to the present disclosure, a ventilation space is formed inside the blade and a partition is installed in the ventilation space, so that, during the flight of the arrow, the side wind is applied to the partition to generate additional rotation flow, thereby further improving the rotational force. In addition, one or more ogives are formed on an outer end of the blade to significantly reduce the air resistance to the rotating arrows, so that the shaking phenomenon such as wobbling is prevented from occurring, thereby securely maintaining the straightness, and as a result, it is possible to accurately hit the target.
The above aspect and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawing figures, wherein:
These and other objects, features and advantages of the present disclosure described above will be more readily understood from the following detailed description of preferred embodiments with reference to the attached drawings. However, the present disclosure is not limited to the embodiments described herein, and may be realized in other forms. In addition, the embodiments disclosed herein are provided for thorough and complete description of the disclosure, and to help those skilled in the art fully understand the concept of the disclosure.
Throughout the description, when an element is referred to as being on another element, it may mean that the element may be directly formed on another element or a third element may be interposed therebetween. Also in the drawings, the thickness of the components may be exaggerated for an effective description of the technical content.
Embodiments provided herein will be described with reference to cross-sectional views and/or plan views which are the ideal illustrations of the present disclosure. In the drawings, the thicknesses of the films and regions may be exaggerated for an effective description of the technical content. Thus, forms of the illustrations may be modified depending on manufacturing techniques, and/or tolerances, and the like. Accordingly, the embodiments of the present disclosure are not limited to the specific forms shown, but also include changes in the forms that are generated according to the manufacturing process. For example, an etching region shown at right angles may have a form that is rounded or that has a certain curvature. Thus, the regions shown in the drawings have attributes, and the shapes of the regions shown in the drawings are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the disclosure. It should be noted that while the terms “first”, “second”, and the like are used to describe various components in various embodiments of the present disclosure, these components are not limited by these terms. In addition, it should be noted that these terms are merely used to distinguish one element from another.
The embodiments described and illustrated herein also include complementary embodiments thereof. The terminology used herein is for the purpose of illustrating embodiments and is not intended to limit the present disclosure. Throughout the description, singular forms include plural forms unless the context clearly dictates otherwise. The terms “comprises” and/or “comprising” used herein mean that the element does not exclude the presence or addition of one or more other elements.
In describing specific embodiments below, various specific details will be set forth in order to explain the disclosure in greater detail and to assist in understanding the disclosure. However, those skilled in the art having knowledge enough to understand the present disclosure will be able to appreciate that the present disclosure may be practiced without these specific details. In some instances, portions of the disclosure that are commonly known in the art and that are not largely related to the disclosure will not be described in order to prevent confusion in explaining the present disclosure without any particular reason.
Hereinafter, a projectile having an ogive according to an embodiment of the present disclosure will be described with reference to
The projectile according to an embodiment of the present disclosure is an arrowhead coupled to a front end of an arrow.
The arrowhead 1 of the present disclosure includes an arrowhead body 10 and a blade 20.
The arrowhead body 10 includes a lower body 12 coupled to a lower inner end of the blade 20, an upper body 12 integrally extending upward from the lower body 12, and a coupling shaft 10 extending downward from the lower body 12 and having a screw portion 18 to be screw-coupled with a tip of an arrow shaft.
The lower body 12 is formed in a cone shape, the upper body 12 is formed in the shape of a rod that is gradually decreased in thickness from the upper center of the lower body 12 to minimize air resistance.
The blade 20 not only has an inherent function of causing lethal bleeding by damaging a large area of the target when the arrowhead 1 hits and penetrates the target, but also increases the rotational force by causing the arrow to be rotated by relative action with the air and reduces the air resistance to suppress degradation of speed, thereby improving the straightness.
The blade 20 is installed to protrude laterally on the arrowhead body 10, and in the present embodiment, two blades 20 may be formed evenly at intervals of 180 degrees.
As shown in
That is, the blade 20 according to the present disclosure may include at least two or more blades, and may be formed to protrude laterally at equal angle intervals on the outer surface of the arrowhead body 10 according to how many of these are formed.
The blade 20 may be formed of ribs having various shapes, but in the present embodiment, is formed of a triangular plate, and the two blades 20 are configured to have a curved shape curved in the same direction, respectively.
Each blade 20 is configured in a curved shape that is curved outward from the arrowhead body (10) in a clockwise direction. However, the present disclosure is not limited thereto, and the blade may be formed in a curved shape that is curved in a counterclockwise direction.
As such, each of the blades 20 has a curved shape, resulting in rotation of the arrowhead 1 in the process of cutting air during the flight of the arrow.
While the related arrows are rotated by the arrow-feathers during the flight, the arrow including the arrowhead 1 according to the present disclosure can generate a stronger rotation, because, in addition to the rotation generated by the arrow-feathers installed on the back of the arrow, there also is a rotational force generated by the blade 20 of the arrowhead 1, thereby improving the accuracy of hitting the target and improving the breaking force due to the high-speed rotation.
That is, according to the arrowhead 1 according to the present disclosure, during the flight of the arrow, in addition to the rotational force obtained from the arrow-feathers, the energy of the air applied in the reverse direction of the flight is also converted into the rotational energy by the blade 20, so that the rotational force of the arrow may be significantly improved compared to the conventional arrow.
In the present disclosure, rotation may be in the clockwise or counterclockwise direction according to the curved direction of the blade 20.
In the present disclosure, a triangular groove 27 is formed in an inner end of the blade 20, and this triangular groove 27 defines a ventilation space S1 in cooperation with the arrowhead body 10. That is, the present disclosure is configured such that the ventilation space S1 is formed inside the blade 20.
The ventilation space S1 is a portion that provides a space through which the side winds entering into the blade 20 in a direction perpendicular to the travel direction of the arrow are passed during the flight of the arrow.
When the ventilation space S1 is in such a structure that is completely open, this can ensure a maximum amount of the side wind passed, but there is a possibility that the rotational force due to the curved shape of the blade 20 may be somewhat lowered. Accordingly, in the present disclosure, a partition 30 may be installed in each ventilation space S1 so that some of the side winds may pass through the ventilation space S1 where the partition 30 is not installed, while the other side wind may cause the arrowhead 10 to rotate as it pushes the partition 30.
That is, according to the disclosure, in addition to the rotation of the arrowhead 10 induced by the curved structure of the blade 20, it is possible to additionally induce rotation by installing the partition 30 in the ventilation space S1 to be pushed by the side wind, thereby further improving the rotational force of the arrow.
In the present disclosure, the partition 30 may be configured in a curved shape corresponding to the curved shape of the blade 20, so that the rotational induction of the arrowhead by the side wind may be further facilitated.
In addition, according to the present disclosure, the partition 30 may be configured in a straight strip shape as shown, but although not shown, it may also be formed in a “∨” shape or “∧” shape.
In addition, according to the disclosure, each of outer ends of the blade 20 are, instead of being formed in a straight line shape, formed in such a shape that a plurality of curves are connected.
Specifically, the outer ends 20a of the blade 20 include a curved first ogive 22 protruding outward from a tip along a lower end, a curved second ogive 24 connected to the first ogive 22 and recessed inward, and a curved third ogive 26 connected to the second ogive 24 and protruding outward again.
While there may be three ogives 22, 24, and 26 as shown in the drawing, it goes without saying that there also may be four to seven ogives.
These ogives 22, 24, and 26 minimize the air resistance for each blade 20 when the arrowhead 1 rotates, thereby preventing the shaking phenomenon such as wobbling, and thus securely maintaining the straightness, and thereby allowing accurate hits on the target.
In addition, according to these ogives 22, 24, and 26, when the arrowhead 1 hits the target, first, the ogive 22 may primarily penetrate the target while cutting the target, causing the primary damage, followed by the ogives 24 and 26 which further penetrate while secondarily cutting the target, causing severe damage to the target, thereby easily ensuring that the target is taken down.
Meanwhile, according to the present disclosure, the blade 20 may be rounded like an outer lower end 28 indicated by a dotted line to further reduce the air resistance.
While the present disclosure has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be appreciated by those skilled in the art that numerous changes and modifications of the invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes, modifications, and equivalents are intended to fall within the scope of the present disclosure.
Claims
1. A projectile comprising:
- an arrowhead body having a predetermined length and adapted to be coupled to a tip of an arrow shaft of an arrow; and
- at least two blades each having a generally triangular shape with its width reducing from a wider proximal portion toward a pointed distal tip portion, the blades protruding at equal intervals from an outer surface of the arrowhead body, and shaped to be curved in a three-dimensional direction to a predetermined direction facilitating a rotation about a longitudinal center axis of the arrow shaft during a flight of the arrow through the air,
- wherein an ogive is formed on an outer surface of the blades, the ogive comprising at least one protruded portion and at least one recessed portion formed on the generally triangular shaped side surface of each of the blades,
- wherein each of the at least two blades includes a ventilation opening at an inner side thereof to have side winds passed there-through, and a partition extending laterally across the ventilation opening and configured in a three-dimensionally curved shape corresponding to the curved shape of the blade so that the blades are subject to an additional rotation force by the side winds passing through the ventilation opening owing to the three-dimensionally curved shape of the partition.
2. (canceled)
3. The projectile according to claim 1, wherein the arrowhead body includes an upper body having the ventilation opening at a side thereof and connected to the partition; and
- a coupling shaft integrally connected to a lower portion of the upper body, formed in a cone shape, and coupled to the arrow shaft at a lower end thereof.
4. The projectile according to claim 1, wherein the ogive of the blades comprises one protruded portion formed adjacent to the pointed distal tip portion of the blades and one recessed portion formed at a rearward side from the protruded portion.
Type: Application
Filed: Oct 11, 2019
Publication Date: Apr 15, 2021
Inventors: Young Min Yoo (Jeju-si), Soung Jong Yoo (Jeju-si)
Application Number: 16/599,299
