U.S. patent application number 16/934913 was filed with the patent office on 2020-11-05 for assembly unit for toy assembly block.
The applicant listed for this patent is CREAMO INC.. Invention is credited to Hyunsoo CHUNG, Won Kyo JEONG, Hyunduk KIM, Sun Ho KIM, Seok LEE, Taikjin LEE, Yong-Joon PARK, Jeong Hun SHIN, Deokha WOO.
Application Number | 20200346128 16/934913 |
Document ID | / |
Family ID | 1000004970097 |
Filed Date | 2020-11-05 |
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United States Patent
Application |
20200346128 |
Kind Code |
A1 |
LEE; Seok ; et al. |
November 5, 2020 |
ASSEMBLY UNIT FOR TOY ASSEMBLY BLOCK
Abstract
An assembly unit includes side plate having first coupling
member on first side, second coupling member on second side, and
third coupling member on each of third and fourth sides, top plate
including fourth coupling member and top stud, and bottom plate
including fifth coupling member and bottom stud. The first coupling
member is engaged with the second coupling member of neighboring
side plate. The fourth coupling member is engaged with the third
coupling member. The fifth coupling member is engaged with the
third coupling member. The first coupling member includes
protrusion. The second coupling member includes groove. The
protrusion is fitted into the groove of the neighboring side plate.
The third coupling member includes thread. Each of the fourth and
fifth coupling members includes thread. The fourth and fifth
coupling members are engaged with the third coupling member in a
screwed manner using the threads.
Inventors: |
LEE; Seok; (Seoul, KR)
; LEE; Taikjin; (Seoul, KR) ; SHIN; Jeong Hun;
(Daegu, KR) ; JEONG; Won Kyo; (Daegu, KR) ;
KIM; Sun Ho; (Seoul, KR) ; CHUNG; Hyunsoo;
(Seoul, KR) ; KIM; Hyunduk; (Cheonan-si, KR)
; PARK; Yong-Joon; (Seongnam-si, KR) ; WOO;
Deokha; (Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CREAMO INC. |
Seongnam-si |
|
KR |
|
|
Family ID: |
1000004970097 |
Appl. No.: |
16/934913 |
Filed: |
July 21, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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16151854 |
Oct 4, 2018 |
10737191 |
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16934913 |
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15889155 |
Feb 5, 2018 |
10188961 |
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16151854 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A63H 33/065 20130101;
A63H 33/086 20130101; A63H 33/084 20130101; A63H 33/088 20130101;
A63H 33/062 20130101; A63H 33/067 20130101 |
International
Class: |
A63H 33/08 20060101
A63H033/08; A63H 33/06 20060101 A63H033/06 |
Claims
1. An assembly unit for a toy assembly block, the assembly unit
comprising: a side plate having a plate shape and including a first
coupling member on a first side, a second coupling member on a
second side, and a third coupling member on each of a third side
and a fourth side; a top plate having a plate shape and including a
fourth coupling member on each side and a top stud on a top
surface; and a bottom plate having a plate shape and including a
fifth coupling member on each side and a bottom stud on a bottom
surface, wherein the first coupling member of the side plate is
configured to be engaged with the second coupling member of a
neighboring side plate of a same type as the side plate, the fourth
coupling member of the top plate is configured to be engaged with
the third coupling member of the side plate, the fifth coupling
member of the bottom plate is configured to be engaged with the
third coupling member of the side plate, the first coupling member
includes a protrusion, the second coupling member includes a
groove, when the first coupling member of the side plate is engaged
with the second coupling member of the neighboring side plate, the
protrusion of the side plate is fitted into the groove of the
neighboring side plate, the third coupling member includes a
thread, each of the fourth coupling member and the fifth coupling
member includes a thread corresponding to the thread of the third
coupling member, and the fourth coupling member and the fifth
coupling member are configured to be engaged with the third
coupling member in a screwed manner using the threads.
2. The assembly unit according to claim 1, further comprising an
internal protrusion inside the top stud.
3. An assembly unit for a toy assembly block, the assembly unit
comprising: a side plate having a plate shape and including a first
coupling member on a first side, a second coupling member on a
second side, and a third coupling member on each of a third side
and a fourth side; a top plate having a plate shape and including a
fourth coupling member on each side and a top stud on a top
surface; and a bottom plate having a plate shape and including a
fifth coupling member on each side and a bottom stud on a bottom
surface, wherein the first coupling member of the side plate is
configured to be engaged with the second coupling member of a
neighboring side plate of a same type as the side plate, the fourth
coupling member of the top plate is configured to be engaged with
the third coupling member of the side plate, the fifth coupling
member of the bottom plate is configured to be engaged with the
third coupling member of the side plate, the third coupling member
includes a thread, each of the fourth coupling member and the fifth
coupling member includes a thread corresponding to the thread of
the third coupling member, and the fourth coupling member and the
fifth coupling member are configured to be engaged with the third
coupling member in a screwed manner using the threads.
4. The assembly unit according to claim 3, wherein the first
coupling member includes a protrusion, the second coupling member
includes a groove, and when the first coupling member of the side
plate is engaged with the second coupling member of the neighboring
side plate, the protrusion of the side plate is fitted into the
groove of the neighboring side plate.
5. The assembly unit according to claim 3, wherein the third
coupling member includes a pillar extending from the side plate and
a hook formed at an end of the pillar, each of the fourth coupling
member and the fifth coupling member includes a hole, when the
fourth coupling member of the top plate is engaged with the third
coupling member of the side plate, the hook of the third coupling
member is inserted into the hole of the fourth coupling member, and
when the fifth coupling member of the bottom plate is engaged with
the third coupling member of the side plate, the hook of the third
coupling member is inserted into the hole of the fifth coupling
member.
6. The assembly unit according to claim 3, wherein each of the
fourth coupling member and the fifth coupling member includes a
protrusion, the third coupling member includes a rail structure to
guide the protrusion, and the fourth coupling member and the fifth
coupling member are configured to be engaged with the third
coupling member by sliding the protrusion through the rail
structure.
7. The assembly unit according to claim 3, further comprising an
internal protrusion inside the top stud.
Description
SPECIFIC REFERENCE TO A GRACE PERIOD INVENTOR DISCLOSURE
[0001] This invention has been published as Korean Patent Laid-Open
Publication No. 10-2017-0013078 on Feb. 6, 2017, which is now
Korean Patent No. 10-1714642.
CROSS REFERENCE TO RELATED APPLICATION
[0002] This application is a Divisional Application of U.S. patent
application Ser. No. 16/151,854, filed Oct. 4, 2018 which is the
Divisional Application of U.S. patent application Ser. No.
15/889,155, filed Feb. 5, 2018, the disclosure of which is
incorporated by reference herein in its entireties.
BACKGROUND
1. Field
[0003] The present invention relates to an assembly unit for a toy
assembly block.
2. Description of the Related Art
[0004] A self-assembly block toy set including a plurality of
blocks of various shapes is used for various purposes. Such a
self-assembly block toy set allows a user to make an arbitrary
structure by assembling desired blocks. With the self-assembly
block toy set, structures of various shapes can be created
depending on imagination of the user, which can be used in a
repeated manner by assembling and disassembling the blocks.
[0005] The activity of assembling the blocks to create the user's
own structure stimulates creativity and imagination of the user,
leading to an improvement of brain activity and intelligence of the
user. In addition, as a more complicated structure can be made
depending on design ability and imagination of the user, such a
self-assembly block toy set is widely used not only for children of
early childhood and preschool children but also for students and
adults.
[0006] The self-assembly block toy set is designed to build a
meaningful structure by coupling unit blocks in various directions.
Therefore, a number of unit blocks of various sizes and shapes are
required depending on the structure to be built.
[0007] In general, a self-assembly block toy set including unit
blocks of fixed sizes and shapes virtually standardized is
commercially available, or a set of unit blocks matching a specific
structure is commercially available, such as LEGO.RTM..
[0008] In this case, when a unit block of a desired size or shape
is absent, the user needs to separately purchase a specific unit
block to complete a desired structure. If the desired unit block is
not sold separately or hard to purchase separately, the desired
structure cannot be completed, which can limit the creativity and
the imagination of the user.
[0009] Further, when a user wants to implement his or her own
imagination by building a structure of an unknown shape, he or she
may need a building block of non-standardized size and shape.
SUMMARY
[0010] According to some embodiments of the present invention, an
assembly unit for a toy assembly block includes a side plate having
a plate shape and including a first coupling member on a first
side, a second coupling member on a second side, and a third
coupling member on each of a third side and a fourth side, a top
plate having a plate shape and including a fourth coupling member
on each side and a top stud on a top surface, and a bottom plate
having a plate shape and including a fifth coupling member on each
side and a bottom stud on a bottom surface. The first coupling
member of the side plate is configured to be engaged with the
second coupling member of a neighboring side plate of a same type
as the side plate. The fourth coupling member of the top plate is
configured to be engaged with the third coupling member of the side
plate. The fifth coupling member of the bottom plate is configured
to be engaged with the third coupling member of the side plate. The
first coupling member includes a protrusion. The second coupling
member includes a groove. When the first coupling member of the
side plate is engaged with the second coupling member of the
neighboring side plate, the protrusion of the side plate is fitted
into the groove of the neighboring side plate. The third coupling
member includes a thread. Each of the fourth coupling member and
the fifth coupling member includes a thread corresponding to the
thread of the third coupling member. The fourth coupling member and
the fifth coupling member are configured to be engaged with the
third coupling member in a screwed manner using the threads.
[0011] Further, according to some embodiments of the present
invention, an assembly unit for a toy assembly block includes a
side plate having a plate shape and including a first coupling
member on a first side, a second coupling member on a second side,
and a third coupling member on each of a third side and a fourth
side, a top plate having a plate shape and including a fourth
coupling member on each side and a top stud on a top surface, and a
bottom plate having a plate shape and including a fifth coupling
member on each side and a bottom stud on a bottom surface. The
first coupling member of the side plate is configured to be engaged
with the second coupling member of a neighboring side plate of a
same type as the side plate. The fourth coupling member of the top
plate is configured to be engaged with the third coupling member of
the side plate. The fifth coupling member of the bottom plate is
configured to be engaged with the third coupling member of the side
plate. The first coupling member includes a protrusion. The second
coupling member includes a groove. When the first coupling member
of the side plate is engaged with the second coupling member of the
neighboring side plate, the protrusion of the side plate is fitted
into the groove of the neighboring side plate. Each of the fourth
coupling member and the fifth coupling member includes a
protrusion. The third coupling member includes a rail structure to
guide the protrusion. The fourth coupling member and the fifth
coupling member are configured to be engaged with the third
coupling member by sliding the protrusion through the rail
structure.
[0012] Moreover, according to some embodiments of the present
invention, an assembly unit for a toy assembly block includes a
side plate having a plate shape and including a first coupling
member on a first side, a second coupling member on a second side,
and a third coupling member on each of a third side and a fourth
side, a top plate having a plate shape and including a fourth
coupling member on each side and a top stud on a top surface, and a
bottom plate having a plate shape and including a fifth coupling
member on each side and a bottom stud on a bottom surface. The
first coupling member of the side plate is configured to be engaged
with the second coupling member of a neighboring side plate of a
same type as the side plate. The fourth coupling member of the top
plate is configured to be engaged with the third coupling member of
the side plate. The fifth coupling member of the bottom plate is
configured to be engaged with the third coupling member of the side
plate. The third coupling member includes a thread. Each of the
fourth coupling member and the fifth coupling member includes a
thread corresponding to the thread of the third coupling member.
The fourth coupling member and the fifth coupling member are
configured to be engaged with the third coupling member in a
screwed manner using the threads.
[0013] Further, according to some embodiments of the present
invention, an assembly unit for a toy assembly block includes a
side plate having a plate shape and including a first coupling
member on a first side, a second coupling member on a second side,
and a third coupling member on each of a third side and a fourth
side, a top plate having a plate shape and including a fourth
coupling member on each side and a top stud on a top surface, and a
bottom plate having a plate shape and including a fifth coupling
member on each side and a bottom stud on a bottom surface. The
first coupling member of the side plate is configured to be engaged
with the second coupling member of a neighboring side plate of a
same type as the side plate. The fourth coupling member of the top
plate is configured to be engaged with the third coupling member of
the side plate. The fifth coupling member of the bottom plate is
configured to be engaged with the third coupling member of the side
plate. Each of the fourth coupling member and the fifth coupling
member includes a protrusion. The third coupling member includes a
rail structure to guide the protrusion. The fourth coupling member
and the fifth coupling member are configured to be engaged with the
third coupling member by sliding the protrusion through the rail
structure.
[0014] The above and other objects, features, advantages and
technical and industrial significance of this invention will be
better understood by reading the following detailed description of
presently preferred embodiments of the invention, when considered
in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is an exploded perspective view of an assembly unit
for a toy assembly block according to some embodiments of the
present invention.
[0016] FIG. 2 is a perspective view of an assembled assembly unit
shown in FIG. 1.
[0017] FIG. 3 is a front view of a side plate shown in FIG. 1.
[0018] FIG. 4 is a front view of two side plates coupled with each
other according to some embodiments of the present invention.
[0019] FIG. 5 is a front view of the side plate including a
coupling assist unit for coupling neighboring side plates according
to some embodiments of the present invention.
[0020] FIG. 6 is a front view of two side plates with the coupling
assist unit coupled with each other according to some embodiments
of the present invention.
[0021] FIG. 7 is a schematic diagram for illustrating a second
coupling element of a side plate according to some embodiments of
the present invention.
[0022] FIGS. 8 and 9 are schematic diagrams for illustrating
coupling between a side plate and a top plate according to some
embodiments of the present invention.
[0023] FIG. 10 is a top view of a top plate according to some
embodiments of the present invention.
[0024] FIG. 11 is a bottom view of a bottom plate according to some
embodiments of the present invention.
[0025] FIG. 12 is a perspective view of the assembly unit with a
side plate having the top stud on the front surface for lateral
coupling according to some embodiments of the present
invention.
[0026] FIG. 13 is a perspective view of the assembly unit with a
side plate having the bottom stud on the front surface for lateral
coupling according to some embodiments of the present
invention.
[0027] FIG. 14 is an exploded perspective view of an assembly unit
of a cylindrical shape with top and bottom plates fixed in a
screwed manner according to some embodiments of the present
invention.
[0028] FIG. 15 is a top view of a top plate with an internal
protrusion according to some embodiments of the present
invention.
BEST MODE(S) FOR CARRYING OUT THE INVENTION
[0029] Exemplary embodiments of the present disclosure are
described in detail below with reference to the accompanying
drawings. In the following descriptions, like reference numerals
designate like elements although the elements are shown in
different drawings. Further, detailed descriptions of known
functions and configurations incorporated herein are omitted for
the purpose of clarity and for brevity.
[0030] FIG. 1 is an exploded perspective view of an assembly unit
100 for a toy assembly block according to some embodiments of the
present invention, FIG. 2 is a perspective view of the assembly
unit 100 in an assembled state, and FIG. 3 is a front view of a
side plate of the assembly unit 100.
[0031] As shown in FIGS. 1 and 2, the assembly unit 100 according
to some embodiments of the present invention includes a side plate
120 having a plate shape and including a first coupling member 121
provided on a first side (the left side in the example shown in
FIG. 3), a second coupling member 122 provided on a second side
(the right side in the example shown in FIG. 3), and third coupling
members 123 respectively provided on a third side (the top side in
the example shown in FIG. 3) and a fourth side (the bottom side in
the example shown in FIG. 3), a top plate 110 having a plate shape
and including a fourth coupling member 111 provided on each side
and a top stud 112 provided on a top surface, and a bottom plate
130 having a plate shape and including a fifth coupling member 131
provided on each side and a bottom stud (1133 in FIG. 11) provided
on a bottom surface.
[0032] The first coupling member 121 of one side plate 120 is
engaged with the second coupling member 122 of a neighboring side
plate 120 to couple two side plates 120. When four side plates 120
are coupled to form four sides of a hexahedron, the fourth coupling
member 111 of the top plate 110 is engaged with the third coupling
member 123 on the top side of the side plate 120 and the fifth
coupling member 131 of the bottom plate 130 is engaged with the
third coupling member 123 on the bottom side of the side plate 120
to complete the hexahedron.
[0033] Although a hexahedron including the top plate 110, the
bottom plate 130, and four side plates 120 are described in FIGS. 1
to 3 as an example, the number of plates is not limited to this
example but can be selected as appropriate depending on the size or
the shape of structure to form. Further, the shapes of the top
plate 110 and the bottom plate 130 are not limited to a polygon but
can be circular or elliptical as appropriate. When the shapes of
the top plate 110 and the bottom plate 130 are circular or
elliptical, the side plate 120 has an arc along the circumferences
of the top plate 110 and the bottom plate 130 to form a cylindrical
block.
[0034] The assembly unit 100 can be assembled and disassembled as
appropriate to form blocks of different sizes and different shapes
depending on the structure to be built.
[0035] The side plates 120 are coupled with each other to form
sides of a polyhedron or a cylindrical shape. Although the side
plate 120 is shown in the drawings as a solid plate, in some
embodiments of the present invention, the side plate 120 is a side
frame such that a functional unit can be fitted into the side frame
to exhibit various functions on the side plate 120.
[0036] The top plate 110 defines the top surface of the assembly
unit 100 when a polyhedron is formed. The size and the shape of the
top plate 110, the number of top studs 112, and the layout of the
top studs 112 can be determined depending on the size and the shape
of the assembly unit 100.
[0037] The bottom plate 130 defines the bottom surface of the
assembly unit 100 when a polyhedron is formed. The size and the
shape of the bottom plate 130, the number of bottom studs (1133 in
FIG. 11), and the layout of the bottom studs (1133 in FIG. 11) can
be determined depending on the size and the shape of the assembly
unit 100.
[0038] As shown in FIG. 3, the first coupling member 121 is formed
of at least one protrusion on the first side, and the second
coupling member 122 is formed of at least one recessed portion on
the second side corresponding to the first coupling member 121. In
the example shown in FIG. 3, two first coupling members 121 are
formed on the first side, and two second coupling members 122
respectively corresponding to the two first coupling members 121
are formed on the second side. However, the number of first
coupling members 121 and the number of corresponding second
coupling members 122 can be set as appropriate.
[0039] The first coupling member 121 of the side plate 120 is
engaged with the second coupling member 122 of a neighboring side
plate 120, and the number of side plates 120 coupled in this manner
determines the shapes of the top plate 110 and the bottom plate
130.
[0040] FIG. 4 is a front view of two side plates 120 coupled with
each other according to some embodiments of the present invention.
In FIG. 4, the first coupling member 121 of the side plate 120 on
the right side in FIG. 4 is engaged with the second coupling member
122 of the neighboring side plate 120 on the left side in FIG. 4.
In this state, the side plate 120 and the neighboring side plate
120 can be rotatably coupled along the coupling center axis. For
example, the side plate 120 and the neighboring side plate 120 can
be rotatably coupled to make an angle of 30 degrees to 180
degrees.
[0041] In some embodiments of the present invention, two side
plates 120 need to be coupled in a fixed manner instead of being
rotatably coupled with each other. FIG. 5 shows a coupling assist
unit including a protrusion 510 on the first coupling member 121
and a groove 520 on the second coupling member 122 for coupling
neighboring side plates 120 according to some embodiments of the
present invention.
[0042] FIG. 6 shows two side plates coupled with each other with
the protrusion 510 of one side plate (on the right side) fitted
into the groove 520 of the other side plate (on the left side).
With the protrusion 510 of one side plate fitted into the groove
520 of the other side plate, the two side plates 120 are coupled
with each other in a fixed manner at a fixed angle.
[0043] FIG. 7 is a schematic diagram for illustrating the third
coupling member 123 of the side plate 120 according to some
embodiments of the present invention. As shown in FIG. 7, the third
coupling member 123 includes a pillar 710 extending from the third
side or the fourth side of the side plate 120 and a hook 720 formed
at the end of the pillar 710. Although the hook 720 extended from
the pillar in one direction is shown in FIG. 7, in some embodiments
of the present invention, the hook 720 is formed to extend in every
direction, such as a shape of a mushroom.
[0044] The fourth coupling member 111 of the top plate 110 and the
fifth coupling member 131 of the bottom plate 130 includes a hole
into which the hook 720 of the side plate 120 is inserted and
locked. The shape of the hole can be square or circular.
[0045] FIGS. 8 and 9 are schematic diagrams for illustrating
coupling between the side plate 120 and the top plate 110 according
to some embodiments of the present invention. As shown in FIG. 8,
the hook 720 is formed extending from the third side of the side
plate 120 and inserted into the fourth coupling member 111 of the
top plate 110. The top plate 110 and the side plate 120 are then
coupled with each other making 90 degrees of internal angle.
[0046] In FIG. 9, the hook 720 is formed to make a predetermined
angle with the side plate 120, and when the hook 720 is inserted
into the fourth coupling member 111, the top plate 110 and the side
plate 120 are coupled in a manner that an angle between the top
plate 110 and the side plate 120 becomes larger than 90
degrees.
[0047] FIG. 10 is a top view of the top plate 110 according to some
embodiments of the present invention. As shown in FIG. 10, the top
plate 110 has a plate shape (polygonal, circular, or elliptical),
including the fourth coupling member 111 on each side and the top
stud 112 on the top surface.
[0048] The size and the shape of the top plate 110, the number of
top studs 112, and the layout of the studs 112 can be determined
depending on the shape of the assembly unit 100 to be formed. In
the example shown in FIG. 10, the top plate 110 has a square plate
shape on which four studs 112 are arranged.
[0049] The top plate 110 includes the fourth coupling member 111 on
each side in the form of a square or circular (including
elliptical) hole. The number of fourth coupling members 111 is set
to be at least same as the number of third coupling members
123.
[0050] FIG. 11 is a bottom view of the bottom plate 130 according
to some embodiments of the present invention. As shown in FIG. 11,
the bottom plate 130 has a plate shape (polygonal, circular, or
elliptical), including the fifth coupling member 131 on each side
and a support mechanism for supporting the top stud 112 of the top
plate 110 on the bottom surface. The support mechanism includes the
bottom stud 1133 and protrusions 1132 formed on the sides of the
bottom plate 130.
[0051] The size and the shape of the bottom plate 130 and the
support mechanism can be determined depending on the shape of the
assembly unit 100 to be formed. In the example shown in FIG. 11,
the support mechanism includes the bottom stud 1133 at the center
and a pair of protrusions 1132 at each corner.
[0052] The bottom plate 130 includes the fifth coupling member 131
on each side in the form of a square or circular (or elliptical)
hole. The number of fifth coupling members 131 is set to be at
least same as the number of third coupling members 123.
[0053] FIG. 12 is a perspective view of an assembly unit 1200 with
a side plate having a top stud on the front surface for lateral
coupling according to some embodiments of the present invention,
and FIG. 13 is a perspective view of an assembly unit 1300 with a
side plate having a bottom stud on the front surface for lateral
coupling according to some embodiments of the present
invention.
[0054] With the assembly unit 1200 and the assembly unit 1300 the
stacking direction can be changed by 90 degrees, providing the
flexibility in building more complicated structure.
[0055] FIG. 14 is an exploded perspective view of an assembly unit
1400 of a cylindrical shape with top and bottom plates fixed in a
screwed manner according to some embodiments of the present
invention.
[0056] As shown in FIG. 14, the assembly unit 1400 includes a
thread 1410 on the top plate and a thread 1420 on side plates at
positions corresponding to the thread 1410. When all side plates
are coupled to form the side wall of a cylinder, the top plate can
be coupled in a screwed manner using the thread 1410 and the thread
1420.
[0057] Similarly, the bottom plate of the assembly unit 1400
includes a thread 1430 and the side plate includes a thread 1440.
When all side plates are coupled to form the side wall of a
cylinder, the bottom plate can be coupled in a screwed manner using
the thread 1430 and the thread 1440.
[0058] In some embodiments, the top and bottom plates includes a
protrusion (not shown) on at least a pair of edges facing each
other and at least two side plates facing each other include a rail
structure to guide the protrusion of the top and bottom plates.
When all side plates are coupled to form the side wall of a
hexahedron, the top and bottom plates can be coupled by sliding the
protrusion through the rail structure of the side plates.
[0059] FIG. 15 is a top view of an assembly unit 1500 including a
top plate 1510 with an internal protrusion 1520 according to some
embodiments of the present invention.
[0060] When a relatively small block or a shallow block needs to be
stacked on the assembly unit 1500 it may not be possible to stably
stack the small or shallow block. The internal protrusion 1520
reduces the effective inner diameter of the top stud 112 such that
a bottom stud of a smaller diameter can be stably fitted into the
top stud 112.
[0061] Further, the screw structure of the top and bottom plates of
the assembly unit 1400 can be applied to the front of the side
plate in a protruded manner. Two neighboring assembly units both
having the screw structure on any one of the side plates then can
be coupled laterally in a screwed manner.
[0062] The present invention should not be limited to the
above-mentioned embodiments but various changes and modifications
can be made by a person having ordinarily skill in the art within
the subject matter, the spirit and scope of the present invention
as hereinafter claimed. Specific terms in the specification and
drawings are used for illustrative purposes and not to be
considered as limitations of the present invention. Exemplary
embodiments of the present invention have been described for the
sake of brevity and clarity. Accordingly, a person having ordinary
skill in the art would understand the scope of the claimed
invention is not to be limited by the above-mentioned embodiments
but by the claims and equivalents thereof.
* * * * *