U.S. patent application number 16/560738 was filed with the patent office on 2020-03-19 for retractable buckle coupling device.
This patent application is currently assigned to Young Hee LEE. The applicant listed for this patent is Young Hee LEE. Invention is credited to Joung Ho SOUNG.
Application Number | 20200085149 16/560738 |
Document ID | / |
Family ID | 65760308 |
Filed Date | 2020-03-19 |
United States Patent
Application |
20200085149 |
Kind Code |
A1 |
SOUNG; Joung Ho |
March 19, 2020 |
RETRACTABLE BUCKLE COUPLING DEVICE
Abstract
The present invention relates to a buckle coupling device in
which a part of the buckle coupling device remains fixed while the
other part is movable in a certain range so that a length of the
buckle coupling device is temporarily extended, and the moved part
of the buckle coupling device returns to an original position
thereof by an internal spring that is compressed when the length is
extended. According to the present invention, a retractable buckle
coupling device includes: a belt coupling member having a first
fixing protrusion, a fixed part, and a coupling part; a first cover
member having a fastening rod; a buckle fastening member having a
second fixing protrusion and a fastening part; at least one spring
member fitted to the first fixing protrusion and the second fixing
protrusion; and a second cover member fastened to the fastening
rod.
Inventors: |
SOUNG; Joung Ho;
(Gwangmyeong-si, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LEE; Young Hee |
Gwangmyeong-si |
|
KR |
|
|
Assignee: |
LEE; Young Hee
Gwangmyeong-si
KR
|
Family ID: |
65760308 |
Appl. No.: |
16/560738 |
Filed: |
September 4, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A44B 11/2592 20130101;
A41F 9/025 20130101; A41F 1/00 20130101; A44B 11/16 20130101 |
International
Class: |
A44B 11/16 20060101
A44B011/16 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 17, 2018 |
KR |
10-2018-0110779 |
Claims
1. A retractable buckle coupling device comprising: a belt coupling
member having at least one first through-hole and at least one
first spring hole, which have a predetermined length and are formed
through upper and lower ends of the belt coupling member in
parallel with each other, having a side surface opened to form a
first seating groove connected to the first spring hole, having a
first fixing protrusion protruding toward an inside of the first
spring hole, and including a fixed part, which has at least one
guide protruding upward between the first through-hole and the
first spring hole, and a coupling part to which a belt is coupled;
a first cover member having opposite side surfaces opened to form a
reception groove for receiving the fixed part, and having a
fastening rod provided in the reception groove to pass through the
first through-hole; a buckle fastening member having at least one
second through-hole corresponding to the first through-hole and at
least one second spring hole corresponding to the first spring
hole, having a second fixing protrusion protruding toward an inside
of the second spring hole and seated in the first seating groove,
having a side surface opened to form a second seating groove
connected to the second spring hole, having at least one guide
groove into which the at least one guide is inserted, and provided
at one distal end thereof with a fastening part to which a buckle
is fastened; at least one spring member having one distal end and
an opposite distal end fitted to the first fixing protrusion and
the second fixing protrusion, respectively; and a second cover
member fastened to the fastening rod to close the reception groove
and prevent the buckle fastened to the fastening part from being
separated.
2. The retractable buckle coupling device of claim 1, wherein the
spring member includes a compression coil spring.
3. The retractable buckle coupling device of claim 1, wherein the
buckle coupling device is bidirectionally retractable.
4. The retractable buckle coupling device of claim 1, wherein a
screw coupling groove is formed at an upper end of the fastening
rod, the second cover member is formed with a screw coupling hole
corresponding to the screw coupling groove, and the first cover
member and the second cover member are screw-coupled to each other.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to a buckle coupling device
configured to be retractable, and more particularly, to a buckle
coupling device in which a part of the buckle coupling device
remains fixed while the other part is movable in a certain range so
that a length of the buckle coupling device may be temporarily
extended, and the moved part of the buckle coupling device may
return to an original position thereof by an internal spring that
is compressed when the length is extended.
2. Description of the Prior Art
[0002] In general, a belt is worn on a waist to prevent pants from
sliding down. However, when the abdomen temporarily expands due to
an inappropriate posture or food intake, it may be uncomfortable
due to a pressure caused by the belt worn on the waist.
[0003] When the pressure is applied by the belt, the problem may be
solved by loosening the belt to adjust a length of the belt.
However, it is inconvenient to adjust the length of the belt
according to every repetitive expansion and contraction of the
abdomen, and there may also be situations such as driving where the
length of the belt may not be adjusted.
[0004] As an invention related to a device for solving such a
problem, Korean Patent Registration Publication No. 10-0888536
entitled "Automatic Extension Device for Belt", Korean Utility
Model Registration Publication No. 20-0481409 entitled "Automatic
Belt Length Adjustment Device", and Korean Patent Publication No.
10-2018-0004934 entitled "Automatic Extension Buckle" have been
proposed and disclosed.
[0005] Korean Patent Registration Publication No. 10-0888536
entitled "Automatic Extension Device for Belt" proposes an
invention related to a device including: a connection belt
connected to a connection hook of a buckle; an elastic member
having one end fixed to the connection belt; a fixing clip fitted
and fixedly screw-coupled to one end of the belt while being
connected to an opposite end of the elastic member; and a
decorative member fitted and fixedly screw-coupled to the
connection belt to surround the elastic member and the fixing clip,
and having a belt hook, so that a length of a belt may be
automatically increased when abdomen expands so as to relieve a
pressure of the abdomen. In addition, Korean Utility Model
Registration Publication No. 20-0481409 entitled "Automatic Belt
Length Adjustment Device" proposes an invention related to a device
including: a buckle connection member to which a buckle is
connected; a spring member for generating an elastic force; a
length adjustment member connected to the spring member so as to be
movable; and a cover member for sealing a bottom surface of the
buckle connection member, so that a pressure applied to abdomen
when a wearer breathes may be relieved. Further, Korean Patent
Publication No. 10-2018-0004934 entitled "Automatic Extension
Buckle" proposes an invention related to a device in which an
elastic clip member having a length automatically extended or
restored is connected to one end of a buckle connected to a belt,
so that an entire length of the buckle is automatically extended or
restored by expansion of abdomen or the like of a wearer without
any additional operation performed by the wearer of the belt, and
thus a pressure applied by the belt to the abdomen may be minimized
as the entire length of the buckle is automatically extended or
restored by the expansion of the abdomen or the like of the
wearer.
DOCUMENTS OF RELATED ART
Patent Documents
[0006] (Patent document 0001) Korean Patent Registration
Publication No. 10-0888536 (2009. Mar. 5) [0007] (Patent document
0002) Korean Utility Model Registration Publication No. 20-0481409
(2016. Sep. 21) [0008] (Patent document 0003) Korean Patent
Publication No. 10-2018-0004934 (2018. Jan. 15)
SUMMARY OF THE INVENTION
[0009] An object of the present invention is to propose a
retractable buckle coupling device which may solve the problems
occurring when the abdomen expands due to an inappropriate posture
or food intake, such as inconveniencies resulting from adjusting
the length of the belt every time when the pressure is applied by
the belt worn on the waist, and inconveniencies resulting from
situations such as driving where the length of the belt may not be
adjusted.
[0010] In order to achieve the above objects, according to an
aspect of the present invention, there is provided a retractable
buckle coupling device including: a belt coupling member having at
least one first through-hole and at least one first spring hole,
which have a predetermined length and are formed through upper and
lower ends of the belt coupling member in parallel with each other,
having a side surface opened to form a first seating groove
connected to the first spring hole, having a first fixing
protrusion protruding toward an inside of the first spring hole,
and including a fixed part, which has at least one guide protruding
upward between the first through-hole and the first spring hole,
and a coupling part to which a belt is coupled; a first cover
member having both side surfaces opened to foam a reception groove
for receiving the fixed part, and having a fastening rod provided
in the reception groove to pass through the first through-hole; a
buckle fastening member having at least one second through-hole
corresponding to the first through-hole and at least one second
spring hole corresponding to the first spring hole, having a second
fixing protrusion protruding toward an inside of the second spring
hole and seated in the first seating groove, having a side surface
opened to form a second seating groove connected to the second
spring hole, having at least one guide groove into which the at
least one guide is inserted, and provided at one distal end thereof
with a fastening part to which a buckle is fastened; at least one
spring member having one distal end and an opposite distal end
fitted to the first fixing protrusion and the second fixing
protrusion, respectively; and a second cover member fastened to the
fastening rod to close the reception groove and prevent the buckle
fastened to the fastening part from being separated.
[0011] According to the retractable buckle coupling device of the
present invention, the first cover member, the buckle fastening
member, and the second cover member are spaced apart from the
coupling part of the belt coupling member so that the problem
derived from the pressure applied to the abdomen due to the
expansion of the abdomen when the belt was worn can be solved, and
an internal spring member is compressed when the buckle fastening
member is spaced apart from the coupling part of the belt coupling
member so that the first cover member, the buckle fastening member,
and the second cover member can return to their original positions
as soon as a circumference of the abdomen is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The above and other objects, features, and advantages of the
present invention will be more apparent from the following detailed
description taken in conjunction with the accompanying drawings, in
which:
[0013] FIG. 1 is an exploded perspective view illustrating a
retractable buckle coupling device according to the present
invention;
[0014] FIG. 2A is a view illustrating an example of coupling
relation between a belt coupling member and a first cover member of
the retractable buckle coupling device according to the present
invention;
[0015] FIG. 2B is a view illustrating an example in which the first
cover member of the retractable buckle coupling device is moved
according to the present invention;
[0016] FIG. 3A is a view illustrating an example of coupling
relation among the belt coupling member, the first cover member,
and a buckle fastening member of the retractable buckle coupling
device according to the present invention;
[0017] FIG. 3B is a view illustrating an example in which the first
cover member and the buckle fastening member of the retractable
buckle coupling device is moved according to the present
invention;
[0018] FIG. 3C is a schematic view illustrating a buckle fastening
member of the retractable buckle coupling device according to the
present invention;
[0019] FIG. 4A is a view illustrating an example in which a spring
member is fastened to the retractable buckle coupling device
according to the present invention;
[0020] FIG. 4B is a view illustrating an example in which the
spring member is compressed in the retractable buckle coupling
device according to the present invention;
[0021] FIG. 5A is a view illustrating an example in which a second
cover member is fastened to the retractable buckle coupling device
according to the present invention; and
[0022] FIG. 5B is a view illustrating an example in which a length
of the retractable buckle coupling device is extended according to
the present invention.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
[0023] The present invention relates to a buckle coupling device
configured to be retractable, and more particularly, to a
retractable buckle coupling device including: a belt coupling
member 100 having at least one first through-hole 111 and at least
one first spring hole 112, which have a predetermined length and
are formed through upper and lower ends of the belt coupling member
100 in parallel with each other, having a side surface opened to
form a first seating groove 113 connected to the first spring hole
112, having a first fixing protrusion 114 protruding toward an
inside of the first spring hole 112, and including a fixed part
110, which has at least one guide 115 protruding upward between the
first through-hole 111 and the first spring hole 112, and a
coupling part 120 to which a belt is coupled; a first cover member
130 having both side surfaces opened to form a reception groove 131
for receiving the fixed part 110, and having a fastening rod 132
provided in the reception groove 131 to pass through the first
through-hole 111; a buckle fastening member 140 having at least one
second through-hole 141 corresponding to the first through-hole 111
and at least one second spring hole 142 corresponding to the first
spring hole 112, having a second fixing protrusion 143 protruding
toward an inside of the second spring hole 142 and seated in the
first seating groove 113, having a side surface opened to form a
second seating groove 144 connected to the second spring hole 142,
having at least one guide groove 145 into which the at least one
guide 115 is inserted, and provided at one distal end thereof with
a fastening part 146 to which a buckle is fastened; at least one
spring member 150 having one distal end and an opposite distal end
fitted to the first fixing protrusion 114 and the second fixing
protrusion 143, respectively; and a second cover member 160
fastened to the fastening rod 132 to close the reception groove 131
and prevent the buckle fastened to the fastening part 146 from
being separated.
[0024] Hereinafter, embodiments of the present invention will be
described in detail with reference to the accompanying
drawings.
[0025] First, as shown in FIG. 1, the retractable buckle coupling
device according to the present invention includes a belt coupling
member 100 having at least one first through-hole 111 and at least
one first spring hole 112, which have a predetermined length and
are formed through upper and lower ends of the belt coupling member
100 in parallel with each other, having a side surface opened to
form a first seating groove 113 connected to the first spring hole
112, having a first fixing protrusion 114 protruding toward an
inside of the first spring hole 112, and including a fixed part
110, which has at least one guide 115 protruding upward between the
first through-hole 111 and the first spring hole 112, and a
coupling part 120 to which a belt is coupled.
[0026] In detail, the belt coupling member 100 is one element of
the present invention, which is coupled to one distal end of the
belt worn around the waist of a user to configure the buckle
coupling device such that the first cover member 130, the buckle
fastening member 140, and the second cover member 160 are coupled
to each other, and may be divided into the fixed part 110 related
to the first cover member 130, the buckle fastening member 140, and
the second cover member 160, and the coupling part 120 coupled to
the belt.
[0027] The first through-hole 111 is penetrated by the fastening
rod 132 to limit a movement range of the fastening rod 132, and the
first spring hole 112 defines a space into which the spring member
150 is inserted together with the second spring hole 142. The first
spring hole 112 may be maintained at a fixed position with respect
to a moving second spring hole 142, moved instead of the second
spring hole 142 that is maintained in its position, or moved
simultaneously with the second spring hole 142, in which the first
spring hole 112 and the second spring hole 142 are moved in
opposite directions.
[0028] In other words, the buckle coupling device is
bidirectionally retractable, so that the length of the buckle
coupling device can be extended by at most 1.5 times.
[0029] In addition, the first seating groove 113 is a groove in
which the second fixing protrusion 143 is seated so that a shape of
the first seating groove 113 may be determined according to a shape
of the second fixing protrusion 143. The first fixing protrusion
114 is seated in the second seating groove 144 to allow, together
with the second fixing protrusion 143, the spring member 150 to be
provided inside the buckle coupling device. The guide 115 is
inserted into the guide groove 145 to restrict a moving direction
of the buckle fastening member 140.
[0030] Further, the coupling part 120 has a generally known
configuration in which the coupling part 120 receives the one
distal end of the belt and the received one distal end is fixedly
pressed by a plurality of protrusions, but the coupling part 120
may have various configurations if it can be coupled with the
belt.
[0031] In addition, as shown in FIG. 1, the retractable buckle
coupling device according to the present invention includes a first
cover member 130 having both side surfaces opened to form a
reception groove 131 for receiving the fixed part 110, and having a
fastening rod 132 provided in the reception groove 131 to pass
through the first through-hole 111.
[0032] As shown in FIG. 2A, the first cover member 130 is one
element of the present invention, which receives the fixed part 110
such that the fastening rod 132 passes through the first
through-hole 111 so as to allow the buckle fastening member 140 to
be received in the reception groove 131 while making close contact
with the fixed part 110, and is fastened to the second cover member
160 by the fastening rod 132.
[0033] In other words, the fastening rod 132 allows the first cover
member 130 and the second cover member 160 to be fastened to each
other, and makes contact with one distal end or an opposite distal
end of the first through-hole 111 if necessary, so that a moving
distance of the first cover member 130 and the second cover member
160 which are fastened to each other may be limited. FIG. 2B is a
view illustrating an example in which the first cover member 130 is
spaced apart from the coupling part 120 while the moving distance
is limited by the fastening rod 132 and the first through-hole
111.
[0034] FIGS. 2A and 2B show that the fastening rod 132 passes
through the one distal end of the first through-hole 111 and moves
toward the opposite distal end of the first through-hole, but the
embodiment is not limited thereto. The fastening rod 132 may pass
through a central portion of the first through-hole 111 so that the
fastening rod 132 may be bidirectionally movable.
[0035] Further, it is obvious that the fastening rod 132 has a
length that allows the fastening rod 132 to pass through the second
through-hole 141 connected to the first through-hole 111 or to
sufficiently penetrate into the second through-hole 141 after
passing through the first through-hole 111, and has a diameter that
is shorter than widths of the first through-hole 111 and the second
through-hole 141.
[0036] In addition, as shown in FIGS. 1 and 3A to 3C, the
retractable buckle coupling device according to the present
invention includes a buckle fastening member 140 having at least
one second through-hole 141 corresponding to the first through-hole
111 and at least one second spring hole 142 corresponding to the
first spring hole 112, having a second fixing protrusion 143
protruding toward an inside of the second spring hole 142 and
seated in the first seating groove 113, having a side surface
opened to form a second seating groove 144 connected to the second
spring hole 142, having at least one guide groove 145 into which
the at least one guide 115 is inserted, and provided at one distal
end thereof with a fastening part 146 to which a buckle is
fastened.
[0037] The buckle fastening member 140 is one element of the
present invention, which is used for fastening the buckle to the
buckle coupling device, and spaced apart from the coupling part 120
of the belt coupling member 100 together with the first cover
member 130 and the second cover member 160 to compress the spring
member 150. While the second through-hole 141 is connected to the
first through-hole 111, the second spring hole 142 is connected to
the first spring hole 112, and the guide 115 is inserted into the
guide groove 145, the buckle fastening member 140 makes close
contact with the fixed part 110 of the belt coupling member 100 as
shown in FIG. 3A, so that most of the buckle fastening member 140
except for the fastening part 146 is received in the reception
groove 131 of the first cover member 130, and the buckle fastening
member 140 is prevented from being exposed to an outside by the
second cover member 160 except for the fastening part 146.
[0038] In this case, the fastening part 146 may have a shape of a
groove having both side surfaces opened, which is the same as or
similar to a generally known shape used for fastening the buckle,
and the fastening part 146 is opened or closed by the second cover
member 160 to fasten the belt and maintain a fastened state of the
belt if necessary.
[0039] In addition, the fastening part 146 has a shape that makes
close contact with a distal end of the first cover member 130 when
the buckle fastening member 140 makes close contact with the fixed
part 110 of the belt coupling member 100, so that the buckle
fastening member 140 may be moved together with the first cover
member 130 according to the movement of the first cover member 130,
and may push the first cover member 130 to move the first cover
member 130 while returning to the original position by a restoring
force of the spring member 150.
[0040] The guide 115 is inserted into the guide groove 145, and the
guide groove 145 allows the buckle fastening member 140 to
reciprocally move only in a linear direction as shown in FIG. 3B,
prevents the buckle fastening member 140 from moving in other
directions, and has one side surface opened to expose a part of the
inserted guide 115 according to the movement of the buckle
fastening member 140.
[0041] Further, it is unnecessary to form the second through-hole
141 in a shape the same as a shape of the first through-hole 111
having a predetermined length so far as a screw coupling hole 161
can be connected to a screw coupling groove 133.
[0042] In addition, as shown in FIGS. 4A and 4B, the retractable
buckle coupling device according to the present invention includes
at least one spring member 150 having one distal end and an
opposite distal end fitted to the first fixing protrusion 114 and
the second fixing protrusion 143, respectively.
[0043] The spring member 150 is one element of the present
invention, which is compressed in a state where the one distal end
and the opposite distal end of the spring member 150 is fitted to
the first fixing protrusion 114 and the second fixing protrusion
143, respectively, to generate a restoring force when the first
cover member 130 and the second cover member 160, which are coupled
to each other, are spaced apart from the coupling part 120 of the
belt coupling member 100.
[0044] In other words, when the first cover member 130 and the
second cover member 160, which are coupled to each other, are
spaced apart from the coupling part 120 of the belt coupling member
100, the buckle fastening member 140 is moved together with the
first cover member 130 and the second cover member 160 by the first
cover member 130, so that the second fixing protrusion 143 provided
on the buckle fastening member 140 is also moved. However, the
first fixing protrusion 114 provided on the fixed part 110 of the
belt coupling member 100 is maintained in its position, so that a
distance between the first fixing protrusion 114 and the second
fixing protrusion 143 is reduced.
[0045] Accordingly, the spring member 150 having the one distal end
and the opposite distal end respectively fitted to the first fixing
protrusion 114 and the second fixing protrusion 143 is compressed
to generate the restoring force. In order to achieve the above
configuration, the spring member 150 is preferably configured as a
compression coil spring which may be inserted into the first spring
hole 112 and the second spring hole 142 configured to have a
straight length, and has one distal end and an opposite distal end
fitted to the first fixing protrusion 114 and the second fixing
protrusion 143, which are positioned symmetrically with respect to
each other, respectively.
[0046] Further, the spring member 150 is provided inside the buckle
coupling device such that the one distal end and the opposite
distal end are respectively fitted to the first fixing protrusion
114 and the second fixing protrusion 143, so that the spring member
150 can be easily separated and replaced if necessary.
[0047] In addition, as shown in FIGS. 1, 5A, and 5B, the
retractable buckle coupling device according to the present
invention includes a second cover member 160 fastened to the
fastening rod 132 to close the reception groove 131 and prevent the
buckle fastened to the fastening part 146 from being separated.
[0048] The second cover member 160 is fastened to the fastening rod
132 so as to be fastened to the first cover member 130 to prevent
the first cover member 130 from being separated, closes the
reception groove 131 to prevent an internal structure of the buckle
coupling device from being exposed to the outside and prevent the
buckle fastening member 140 from being separated, and closes a
passage into which the buckle is introduced so as to be fastened to
the fastening pat 146 to prevent the buckle from being
separated.
[0049] In this case, the second cover member 160 may be
screw-coupled to the fastening rod 132. Accordingly, the screw
coupling groove 133 having a predetermined depth may be formed in
an upper end of the fastening rod 132, and the screw coupling hole
161 corresponding to the screw coupling groove 133 may be formed on
one side of the second cover member 160.
[0050] Hereinafter, a process of integrally forming the retractable
buckle coupling device by assembling the belt coupling member 100,
the first cover member 130, the buckle fastening member 140, the
spring member 150, and the second cover member 160, and effects of
the device will be described.
[0051] First, the one distal end of the belt that is worn around
the waist of the user is coupled to the fixed part 110, the first
cover member 130 is brought into close contact with the fixed part
110 by allowing the fastening rod 132 to pass through the first
through-hole 111, and the second cover member 160 is brought into
close contact with the fixed part 110 by allowing the fastening rod
132 to pass through the second through-hole 141.
[0052] In other words, the fastening rod 132 simultaneously passes
through the first through-hole 111 and the second through-hole 141,
so that the first cover member 130 and the second cover member 160
are received in the reception groove 131, and the first
through-hole 111 and the second through-hole 141 are connected to
each other.
[0053] In addition, the first spring hole 112 and the second spring
hole 142 are connected to each other such that the second fixing
protrusion 143 is seated in the first seating groove 113 and the
first fixing protrusion 114 is seated in the second seating groove
144, the spring member 150 configured as the compression coil
spring is inserted into the first spring hole 112 and the second
spring hole 142 which are connected to each other and fixed by the
first fixing protrusion 114 and the second fixing protrusion
143.
[0054] Thereafter, the buckle is fastened to the fastening part
146, which may have the shape of a groove having both side surfaces
opened, and the screw coupling groove 133 formed in the fastening
rod 132 and the screw coupling hole 161 formed in the second cover
member 160 are connected to or mated with each other, so that the
reception groove 131 may be closed, and the buckle fastened to the
fastening part 146 may be prevented from being separated. In this
case, the first cover member 130 and the second cover member 160
may be screw-coupled to each other.
[0055] According to the above coupling scheme, the belt coupling
member 100, the first cover member 130, the buckle fastening member
140, the spring member 150, and the second cover member 160
integrally constitute the retractable buckle coupling device, and
the belt and the buckle may be respectively fastened to one side
and an opposite side of the retractable buckle coupling device.
When a circumference of abdomen is temporarily increased due to a
posture or overeating of the user wearing the belt on the waist,
the first cover member 130, the buckle fastening member 140, and
the second cover member 160 which are coupled to each other are
spaced apart from the coupling part 120 of the belt coupling member
100, so that the problem derived from the pressure applied to the
user can be considerably solved, and the first cover member 130,
the buckle fastening member 140, and the second cover member 160
can return to their original positions by the compressed spring
member 150 as soon as the circumference of the abdomen is
reduced.
[0056] The embodiments described above are provided by way of
example to allow those skilled in the art to sufficiently
understand the technical idea of the present invention. However,
the present invention is not limited to the embodiments described
above, but may be embodied in many other foams.
[0057] In order to clearly describe the present invention, portions
irrelevant to the description are omitted from the drawings. In the
drawings, widths, lengths, thicknesses, and the like of components
may be exaggerated or reduced for convenience.
[0058] In addition, like reference numerals refer to like elements
throughout the specification.
* * * * *