U.S. patent application number 15/607428 was filed with the patent office on 2017-12-07 for feathers of an arrow.
The applicant listed for this patent is YEON KIM. Invention is credited to YEON KIM.
Application Number | 20170350680 15/607428 |
Document ID | / |
Family ID | 59498672 |
Filed Date | 2017-12-07 |
United States Patent
Application |
20170350680 |
Kind Code |
A1 |
KIM; YEON |
December 7, 2017 |
FEATHERS OF AN ARROW
Abstract
The present invention relates to the improved feathers of an
arrow, and more particularly, to the improved feathers of an arrow,
which prevent instability of flight caused by a vortex generated
during the flight of the arrow by forming a plurality of arrow
feathers attached to the arrow, which has a cross section which is
a curved surface and integrally forming an auxiliary surface having
one surface which is the curved surface with the arrow feather to
guarantee stable flight.
Inventors: |
KIM; YEON; (Seoul,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
KIM; YEON |
Seoul |
|
KR |
|
|
Family ID: |
59498672 |
Appl. No.: |
15/607428 |
Filed: |
May 26, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F42B 6/02 20130101; F42B
6/06 20130101; F42B 10/08 20130101; F42B 6/04 20130101; F42B 10/02
20130101 |
International
Class: |
F42B 6/06 20060101
F42B006/06; F42B 10/02 20060101 F42B010/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 3, 2016 |
KR |
20-2016-0003058 |
Claims
1. Improved feathers of an arrow in which arrow pile and a nock are
formed at both ends of an arrow shaft and a plurality of arrow
feathers are bonded to the surface of the arrow shaft to be
integrally formed at the front of the nock, comprising: an
attachment surface 120 curved in a direction opposite to a curved
direction of a body 110 and an auxiliary surfaced 130 curved in the
same or similar shape as a curved shape of the body by separating a
part of the inner surface body 110, which are integrally formed at
a lower portion of the body 110 curved in one direction.
2. The improved feathers of an arrow of claim 1, wherein the
plurality of auxiliary surfaces 130 is formed on the inner surface
of the body 110.
3. The improved feathers of an arrow of claim 1, wherein the
auxiliary surface 130 has a smooth flat plate shape.
4. The improved feathers of an arrow of claim 1, wherein the
attachment surface 120 is curved with the same arc as the surface
of the arrow shaft 11 to which the arrow feathers 100 are attached.
Description
TECHNICAL FIELD
[0001] This application claims priority to and the benefit of
Korean Utility Model Application No. 20-2016-0003058 filed in the
Korean Intellectual Property Office on Jun. 3, 2016, the entire
contents of which are incorporated herein by reference.
[0002] The present invention relates to the improved feathers of an
arrow, and more particularly, to the improved feathers of an arrow,
which prevent instability of flight caused by a vortex generated
during the flight of the arrow by forming a plurality of arrow
feathers attached to the arrow, which has a cross section which is
a curved surface and integrally forming an auxiliary surface having
one surface which is the curved surface with the arrow feather to
guarantee stable flight.
BACKGROUND ART
[0003] An arrow which is used for notching and shooting at a string
of a bow, is constituted by an arrow shaft, an arrow pile, a
fletching, and a nock. The arrow pile is mounted at the front end
of the arrow shaft and the nock is mounted at the end of the arrow
shaft for notching the string of the bow.
[0004] In general, the arrow that leaves the string of the bow
flies toward a target with a parabola and in this case, the arrow
flies while swinging back and forth and left and right around the
center of gravity of the arrow.
[0005] In other words, the arrow does not fly straight toward the
target, but flies while staggering as if the fish swims. Such a
phenomenon is called a paradox phenomenon and the fletching serves
to make the arrow fly straightly by air resistance by preventing
the staggering.
[0006] Further, the arrow flies while rotating by the air
resistance applied to the fletching of the arrow and the rotating
arrow flies more steadily than an unrotated arrow. That is, the
arrow is stably moved by giving a slight pitch to the direction of
the fletching mounted on the arrow shaft and such an effect is
called a gyro effect.
[0007] When the related art of the arrow is described, an arrow of
Korean Patent Registration No. 10-1399544 (registration date: May
20, 2014) is characterized in that a diameter of a shaft 110 in
which a point 120 is joined to a front end and a nock 140 is joined
to a rear end is formed to decrease from the front end to the rear
end to move the center of gravity in a front-end direction and
control bending deformation, and the shaft 110 is divided into
three parts, and a shaft front-end portion a is a portion joined
with the point 120 and having a larger diameter to other portions,
a shaft middle-end portion b extends from the shaft front-end
portion a and has a diameter which becomes gradually smaller and
smaller than the shaft front-end portion a, and a shaft rear-end
portion c extends from the shaft middle-end portion b and
constantly has the same diameter as a last portion of the shaft
middle-end portion b.
[0008] Meanwhile, when a detailed configuration of arrow feathers
constituting the arrow is described, FIG. 1 is a perspective view
of conventional general feathers of an arrow and FIG. 2 is a
schematic view illustrating a connection type of the arrow and the
arrow feathers as illustrated in FIGS. 1 and 2.
[0009] The conventional arrow feather 10 has an arrow pile 12 and a
nock 13 formed at both ends of an arrow shaft 11 and a plurality of
arrow feathers 14 are bonded to the surface of the arrow shaft 11
to be integrally formed at the front of the nock 13.
[0010] In addition, arrows users prevents occurrence of initial
penetration resistance by wrapping a tape 15 on an attachment
portion of a front portion of the arrow feather 14 he tape in order
to prevent occurrence of sensitive resistance in the process of
flying the arrow.
[0011] However, when the tape is attached to prevent the initial
penetration resistance as described above, problems such as an
increase in weight of the arrow and the psychological weight of the
user are caused.
[0012] When the related art is described as an effort for solving
the problem, a fletching for an arrow of Korean Patent Application
Publication No. 10-2010-0132203 (publication date: Dec. 17, 2010)
includes a frame 111 having the inside of an outer periphery is
formed to be opened and forming an overall frame, multiple
longitudinal rods 114 connecting the top and the bottom of the
frame and disposed to be spaced apart from each other in the
longitudinal direction of the frame, a wing part 110 constituted by
a thin film 112 formed in an empty space divided by the frame and
the longitudinal rod, and a boded part 120 positioned on the bottom
of the wing part and attached to an arrow shaft.
[0013] However, even in the process of the flight of the arrow
feather having the above configuration, the vortex is generated due
to a thin film formed between longitudinal rods, and as a result,
the flight is not stable and an unstable phenomenon continuously
occurs.
DISCLOSURE
Technical Problem
[0014] The present invention is contrived by considering the
situation and an object of the present invention is to provide the
improved feathers of an arrow, which divides and derives a flow of
air which influences the arrow feather while maintaining a
predetermined shape in the process of flying an arrow to resolve
initial penetration resistance generated at a connection portion of
an arrow shaft and the arrow feather when the arrow flies and
prevent a vortex generated if the air passes through the arrow
feather, thereby remarkably increasing a flight safety,
straightness, and a hit rate of the arrow.
[0015] In particular, an object of the present invention is to
provide the improved feather of an arrow, which can resolve a
problem that a user feels a psychological weight without the need
for a process such as taping a connection portion of the arrow
shaft and the arrow feather in order for a user of the arrow to
secure a flight safety of the arrow.
Technical Solution
[0016] The object of the present invention can be achieved by
improved feathers of an arrow in which arrow head and a notch are
formed at both ends of an arrow shaft and a plurality of arrow
feathers are bonded to the surface of the arrow shaft to be
integrally formed at the front of the notch, including: an
attachment surface 120 curved in a direction opposite to a curved
direction of a body 110 and an auxiliary surfaced 130 curved in the
same or similar shape as a curved shape of the body by separating a
part of the inner surface body 110, which are integrally formed at
a lower portion of the body 110 curved in one direction.
[0017] The plurality of auxiliary surfaces 130 is formed on the
inner surface of the body 110.
[0018] The auxiliary surface 130 has a smooth flat plate shape.
[0019] The attachment surface 120 is curved with the same arc as
the surface of the arrow shaft to which the arrow feathers 100 are
attached.
Advantageous Effects
[0020] The improved arrow feather according to the present
invention maintains a predetermined shape and a body is formed to
be curved in one direction in the process of flying the arrow and
in particular, the flow of the air which is applied to the arrow
feather is divided and derived by a curved auxiliary surface in the
body to prevent the vortex from being generated by the arrow
feather when the arrow flies or the vortex is divided and
distributed to improve the flight safety and the straightness,
thereby remarkably increasing the hit rate.
[0021] That is, the vortex generated by the arrow feather is
resolved and the initial penetration resistance of air which flows
into the arrow feather is decreased to induce stable flight.
[0022] In particular, the user can resolve a psychological weight
without the need for a process such as taping a connection portion
of the arrow shaft and the arrow feather in order for the user of
the arrow to secure the flight safety of the arrow.
DESCRIPTION OF DRAWINGS
[0023] FIG. 1 is a perspective view illustrating a conventional
arrow.
[0024] FIG. 2 is a schematic side view of a state in which an arrow
feather is attached to an arrow shaft in the convention arrow.
[0025] FIG. 3 is a perspective view of a state in which an improved
arrow feather is attached to an arrow shaft according to the
present invention.
[0026] FIG. 4 is a side view of the state in which the improved
arrow feather is attached to the arrow shaft according to the
present invention.
[0027] FIG. 5 is a cross-sectional view of FIG. 3 taken along line
A-A.
[0028] FIGS. 6 to 8 are side views illustrating another embodiment
of the improved arrow feather according to the present
invention.
[0029] FIG. 9 is a view illustrating the difference between a case
where auxiliary surface is formed and another case where auxiliary
surface is not formed in generation of vortex.
MODE FOR INVENTION
[0030] Hereinafter, a preferred embodiment of the present invention
will be described in detail with reference to the accompanying
drawings.
[0031] An embodiment to be described below is intended to be
described in detail to enable those skilled in the art to easily
carry out the invention and it is not meant that the technical
spirit and scope of the present invention are limited thereto.
[0032] In addition, the size and shape of the components
illustrated in the drawings may be enlarged for clarity and
convenience of description, and terms particularly defined in
consideration of a configuration and an operation of the present
invention may vary depending on the intention or custom of a user
or an operator and it should be noted that the definitions of the
terms should be made based on contents throughout the present
specification.
[0033] Among the accompanying drawings, FIG. 3 is a perspective
view of a state in which an improved arrow feather is attached to
an arrow shaft according to the present invention, FIG. 4 is a side
view of the state in which the improved arrow feather is attached
to the arrow shaft according to the present invention, FIG. 5 is a
cross-sectional view of FIG. 3 taken along line A-A, and FIGS. 6 to
8 are side views illustrating another embodiment of the improved
arrow feather according to the present invention.
[0034] As illustrated, in the improved arrow feather 100 according
to the present invention, an attachment surface 120 that is bent
from a body 110 and attached to the surface of an arrow shaft 11 is
integrally formed at a lower portion of the body 110 curved in one
direction.
[0035] The body 110 generally has a substantially rounded shape in
one direction.
[0036] The attachment surface 120 is configured to have the same
arc as the arrow shaft 11 attached by bending the lower portion of
the body 110 in a direction opposite to the rounding direction of
the body 110.
[0037] That is, since the attachment surface 120 has the same
curved surface as the surface of the arrow shaft 11 in the process
of attaching the arrow feathers 100 to the arrow shaft 10, the
arrow feathers 100 may be completely in close contact with the
arrow shaft 11 to minimize initial penetration resistance generated
at a connection portion of the arrow shaft 11 and the arrow
feathers 100 while the arrow flies. The reduction of the initial
penetration resistance also reduces the central resistance
generated at the center of the arrow feathers 100, thereby inducing
a stable flow of air. Since the arrow shaft 11 and the arrow
feathers 100 are closely contacted with each other, the initial
penetration resistance is reduced and taping of the connecting
portion is unnecessary, thereby eliminating a psychological weight
increase factor of a user.
[0038] Meanwhile, the present applicant forms an auxiliary surface
130 integrally formed with the body 110 on the inner surface of the
body 110 in order to stably enhance flyability by resolving a
vortex generated during flying of the arrow feathers configured as
above to remove and dividedly distribute the vortex generated on
the inner surface of the arrow feathers while the arrow flies,
thereby enhancing flight straightness.
[0039] That is, the auxiliary surface 130 is formed on a curved
inside of the curved inner surface of the body 110, and a part of
the inner surface of the body 110 is separated and bent in the same
or similar shape as the curved shape of the body.
[0040] As illustrated in the FIG. 9, the body 110 of the arrow
feathers 100 is curved to induce the arrow to rotate during flight,
thereby improving the flight straightness. However, the vortex is
generated in the air passing through the curved inner portion of
the arrow feathers and the straightness of the arrow is not uniform
due to swinging due to the vortex during the flight of the arrow,
and the same problem may not be ensured due to the speed of flight
and factors of a surrounding environment.
[0041] The present applicant enhances the flight safety and the
straightness of the arrow by separating a part of the auxiliary
surface 130 on the curved inner surface of the body 110 of the
arrow feathers 100 and integrally forming the auxiliary surface 130
which protrudes on the inner surface of the body 110.
[0042] In other words, as illustrated in the figure, the air
introduced by the auxiliary surface 130 is divided while colliding
with the auxiliary surface 130 from the entrance portion before the
vortex of the air is generated in the process of passing through
the curved inner portion of the arrow feathers to prevent the
vortex from being generated and the air passing through the inside
of the arrow feathers is uniformly passed to stabilize the flight
of the arrow and enhance the straightness, thereby remarkably
increasing the hit rate.
[0043] Meanwhile, the auxiliary surface 130 may be formed in
various shapes and positions as shown in FIGS. 6 to 8.
[0044] That is, as illustrated in FIG. 6, the auxiliary surface 130
may be formed on the top of the body 110, as illustrated in FIG. 7,
a plurality of auxiliary surfaces may be configured, or as
illustrated in FIG. 8, the auxiliary surface 130 may be formed to
have a flat plate shape without being curved.
[0045] The described auxiliary surface may be formed integrally
with the body 110 at various positions on the inner surface of the
body 110 in addition to the exemplified positions.
[0046] That is, the arrow 10 flies while being rotated by the
curved body 110 of the arrow feathers 100 and in this case, the air
flowing into the inside of the body 110 is divided while colliding
with the auxiliary surface 130 and the flow of the air is stably
induced to prevent the generation of the vortex of the air flowing
into the body 110, thereby assuring the stable flight of the
arrow.
[0047] Although the present invention has been described in
association with the aforementioned preferred embodiment, it can be
easily recognized by those skilled in the art that various
modifications and changes can be made without departing from the
gist and the scope of the present invention and it is apparent that
the changes and modifications are all included in the appended
claims.
SEQUENCE LIST TEXT
[0048] 100: Arrow feathers [0049] 110: Body [0050] 120: Attachment
surface [0051] 130: Auxiliary surface
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