U.S. patent application number 11/657730 was filed with the patent office on 2007-08-23 for building boards and printing method used for the same.
This patent application is currently assigned to NICHIHA CO., LTD.. Invention is credited to Tomoyoshi Yabe, Hiroyuki Yamauchi.
Application Number | 20070193160 11/657730 |
Document ID | / |
Family ID | 38426714 |
Filed Date | 2007-08-23 |
United States Patent
Application |
20070193160 |
Kind Code |
A1 |
Yamauchi; Hiroyuki ; et
al. |
August 23, 2007 |
Building boards and printing method used for the same
Abstract
In a building board having a designed surface with pattern
convex portions, and upper and lower shiplap portions, both of
which are formed in the end portion of the designed surface, a
printing extension portion is formed in the lower shiplap1 portion,
and the printing extension portion is printed in such a way that
the extension portion and the pattern convex portion are
continuously formed.
Inventors: |
Yamauchi; Hiroyuki;
(Nagoya-shi, JP) ; Yabe; Tomoyoshi; (Nagoya-shi,
JP) |
Correspondence
Address: |
ARMSTRONG, KRATZ, QUINTOS, HANSON & BROOKS, LLP
1725 K STREET, NW
SUITE 1000
WASHINGTON
DC
20006
US
|
Assignee: |
NICHIHA CO., LTD.
Nagoya-shi
JP
|
Family ID: |
38426714 |
Appl. No.: |
11/657730 |
Filed: |
January 25, 2007 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60762903 |
Jan 30, 2006 |
|
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|
Current U.S.
Class: |
52/311.2 |
Current CPC
Class: |
E04F 13/0871 20130101;
B42D 15/00 20130101; B44C 5/04 20130101; E04F 13/0892 20130101;
E04F 13/0826 20130101 |
Class at
Publication: |
052/311.2 |
International
Class: |
E04F 15/00 20060101
E04F015/00 |
Claims
1. A building board having a designed surface with pattern convex
portions, and upper and lower shiplap portions, both of which are
formed in the end portion of said designed surface, wherein a
printing extension portion is formed in said lower shiplap portion,
and said printing extension portion is printed in such a way that
said extension portion and said pattern convex portion are
continuously formed.
2. The building board according to claim 1, wherein said printing
extension portion has the same width as that of said pattern convex
portion, and has the same pattern and color as those of a part of
said pattern convex portion.
3. The building board according to claim 1, wherein said printing
extension portion has a center portion having the same pattern and
color as those of a part of said pattern convex portion and
auxiliary portions at the both sides of said center portion, and
the pattern and color for said auxiliary portions are the same as
those of a part of said center portion.
4. The building board according to claim 3, wherein the brightness
of the pattern and color for said auxiliary portions is lower than
that of the pattern and color of said pattern convex portion.
5. The building board according to claim 3, wherein said center
portion has a left side portion and a right side portion along the
direction of axis line of said pattern convex portion, said left
side portion has the same pattern and color as those of a part of
said pattern convex portion, and said right side portion has the
same pattern and color as those of a part of a pattern convex
portion on an abutting building board on the right side.
6. The building board according to claim 1, wherein said printing
extension portion has a center portion having the same pattern and
color as those of a part of said pattern convex portion and
auxiliary portions at the both sides of said center portion, and at
least one of said auxiliary portions projects outward from the edge
of said pattern convex portion.
7. A method for printing a building board, comprising; displaying,
on a screen of a display device connected to a computer, images of
two right and left building boards which are arranged abutting to
each other and each of which has a designed surface with pattern
convex portions, and upper and lower shiplap portions, both of
which are formed in the end portion of said designed surface;
forming an image in a printing region on the screen of said display
device by cutting out a portion with a predetermined width from
said image in said pattern convex portion on said building board on
the left side, cutting out a portion with a predetermined width
from said image in said pattern convex portion on said building
board on the right side, and joining said portions; and printing
said image in said printing region in such a way that said lower
shiplap portion on said building board and said pattern convex
portion are continuously formed when said pattern convex portion on
said building board is printed.
8. The method for printing a building board according to claim 7,
wherein said forming an image in a printing region further includes
jointing images in printing regions which are extended to portions
on and under said image in said jointed printing regions.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a building board, a
designed surface of which is printed, and a printing method used
for the board.
[0003] 2. Description of the Prior Art
[0004] A joint method by which building boards are jointed
according to shiplap joint will be explained, referring to FIG. 7
and FIG. 8. FIG. 7 is a perspective view showing a jointing state
in which right and left building boards are jointed according to
the joint method by shiplap joint. As shown in the drawing,
according to the joint method by shiplap joint, a fastening member
72 is locked to lower shiplap portions both of which are located
over an abutting joint portion 71 formed with abutting building
boards 100A and 100B, and the fastening member 72 is fixed on a
furring strip 73 with nails.
[0005] FIG. 8 is a schematic sectional view showing a jointing
state by shiplap joint. As shown in the drawing, a jointing state
by shiplap joint in which jointing of right and left building
boards is realized by putting the upper shiplap portion 120B formed
in the end portion of the left-side of the building board 100B
disposed on the right side on the lower shiplap portion 110A formed
in the end portion of the right-side of the building board 100A
disposed on the left side. Moreover, a caulking compound 81 is
provided to the lower shiplap portion 110A beforehand, and is
pressed by the upper shiplap portion 120B so as to function as a
dam against rainwater which enters from the abutting joint portion
71. Accordingly, water is prevented from leaking to the back side
(the inside of a house) of the building board after
construction.
[0006] As all operations necessary for butt jointing in which a
sealing material is applied to an abutting joint portion are not
required at all by the above-described shiplap jointing, the
workability is increased, and, at the same time, the appearance
after construction is greatly improved. Obviously, neither spoiling
of the appearance due to secular changes in the sealing material
nor water leak based on deterioration of the material occurs.
[0007] FIG. 9A and FIG. 9B are views, each explaining a
construction method of building boards as an external wall. When
building boards 100A, 100B, and 100C, all of which have shiplap
portion in every direction for the joint method by shiplap joint,
are fastened to an external wall as shown in FIG. 9A, the building
board 100A disposed on the left side is fastened to a column
(structural building frame) in the first place, and, then, the
building board 100B disposed on the right side of the board 100A is
arranged in the jointing state by shiplap joint (a state in which
the upper shiplap portion 120B formed in the left side of the
building board 100B is put on the lower shiplap portion 110A formed
in the right side of the building board 100A), and is fastened to
the column. Subsequently, the building board 100C disposed over the
building board 100A is arranged in the jointing state by shiplap
joint (a state in which the upper shiplap portion 120C formed in
the lower side of the building board 100C is put on the lower
shiplap portion 110A formed in the upper-side of the building board
100A), and is fastened to the column. A fastening member as shown
in FIG. 7 is used for the fastening.
[0008] FIG. 9B is a view showing a state in which the three
building boards 100A, 100B, and 100C are jointed. The fastening
members (not show in the drawing) are fixed to the column for
arranging the building boards. However, in the case where the
fastening member is fixed to the column at the upper end of
abutting portion 72 between the two building boards 100A and 100B
respectively arranged on the right and left sides, the fastening
member is fixed approximately horizontally to the column while
correcting pattern shifts between the right and left building
boards and the like.
[0009] A gap between the building boards in the abutting joint
portion 71 will be explained, referring to FIG. 10A and FIG. 10B.
The designed surfaces of the building boards 100A and 100B include
pattern convex portions 101A and 101B, and joint portions 102A and
102B. FIG. 10A is a view showing a case in which the distance
between the abutting two building boards in the abutting joint
portion 71 is equal to a designed value. The pattern convex
portions on the right and left building boards are physically
divided into parts in the abutting joint portion 71. However, when
the patterns on the building boards are designed in such a way that
a part of the pattern convex portion 101A on the building board
100A disposed on the left side and a part of the pattern convex
portion 101B on the building board 100B disposed on the right side
form one pattern convex portion, the pattern continuity between the
right and left building boards may be secured in appearances.
[0010] FIG. 10B is a view showing a constructed state in which the
distance between the two abutting building boards in the abutting
portion 71 becomes larger than the designed value, and the two
building boards are mutually shifted by a distance DELTA d in an up
and down direction, based on errors in the cutting size and the
like. In this case, a feeling of pattern mismatching (a feeling of
wrongness) is caused because the pattern continuity between the
pattern convex portions cannot be secured in appearances as shown
in FIG. 10A.
[0011] Incidentally, in order to secure the pattern continuity
between the right and left building boards, it is required to
consider how to color both of the pattern convex portions, other
than how to continuously form both of the pattern convex portions,
which are physical shapes of the designed surfaces of the building
boards, on the right and left building boards as described above.
Japanese Patent Laid-Open No. 3284037 has disclosed a painting
technology for coloring patterns as a method by which pattern
continuity between abutting building boards is realized.
[0012] Generally, there is an apprehension that the width of a
abutting joint portion formed between abutting building boards in a
ceramics system (in a cement system) becomes different from a
designed value when the building board is used on the external wall
of a building, because the building board is by no means
manufactured without dimensional errors. Accordingly, defective
construction is caused, and pattern shifts between right and left
building boards is brought in appearances. Moreover, the width of
an abutting joint portion is changed by secular changes after
construction, that is, by repeated expansion and contraction of an
building board in some cases to cause pattern shifts between right
and left building boards, and the appearance is largely
spoiled.
SUMMARY OF THE INVENTION
[0013] An object of the present invention is a configuration in
which a feeling of wrongness is not caused by securing pattern
continuity between pattern convex portions in appearances even when
the widths of abutting joint portions formed between abutting
building boards are different from each other by defective
construction and secular changes after construction, and shape
shifts between pattern convex portions are caused.
[0014] According to the present invention, in a building board
having a designed surface with pattern convex portions, and upper
and lower shiplap portions, both of which are formed in the end
portion of the designed surface, a printing extension portion is
printed in the lower shiplap portion in such a way that the
extension portion and the above-described pattern convex portion
are continuously formed.
[0015] According to the present invention, a feeling of wrongness
is not caused in appearances by securing pattern continuity between
pattern convex portions of two abutting building boards even when
the width of an abutting joint portion formed between the abutting
building boards is large, and a position shift between the boards
is caused.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG. 1A through FIG. 1F are views, each showing an example
of a printing extension portion of a lower shiplap portion on a
building board according to the present invention;
[0017] FIG. 2A through FIG. 2C are views, each showing an example
of the printing extension portion of the lower shiplap portion on
the building board according to the present invention;
[0018] FIG. 3A through FIG. 3D are views, each showing another
example of the printing extension portion of the lower shiplap
portion on the building board according to the present
invention;
[0019] FIG. 4A and FIG. 4B are views, each showing a method by
which image data for the printing extension portion in the lower
shiplap portion on the building board according to the present
invention is generated;
[0020] FIG. 5A and FIG. 5B are views, each showing a method by
which image data for the printing extension portion in the lower
shiplap portion on the building board according to the present
invention is generated;
[0021] FIG. 6 is a view showing the details of the printing
extension portion in the lower shiplap portion on the building
board according to the present invention;
[0022] FIG. 7 is a perspective view showing a jointing state in
which right and left building boards are jointed according to a
joint method by shiplap joint;
[0023] FIG. 8 is a schematic sectional view showing a joint method
by shiplap joint;
[0024] FIG. 9A and FIG. 9B are views, each explaining a
construction method of building boards as an external wall; and
[0025] FIG. 10A and FIG. 10B are views, each explaining an abutting
joint portion between the building boards.
DETAILED DESCRIPTION OF THE INVENTION
[0026] Examples of a building board according to the present
invention will be explained, referring to FIG. 1A through FIG. 3D.
According to the present example, a similar pattern and color to a
part of the pattern and color on a pattern convex portion 101A is
printed on a lower shiplap portion 110A of a building board 100A.
Here, a printed portion on the lower shiplap portion 110A is called
a printing extension portion 10. When it is assumed that the length
of the lower shiplap portion 110A, which is measured along the
printing direction of the building board 100A, is F, and the length
of the printing extension portion 10 in the portion 110A is f,
f.ltoreq.F. It is also assumed that the width of the pattern convex
portion 101A is H, and the width of the printing extension portion
10 of the portion 110A is h.
[0027] In the example shown in FIG. 1A, the central axis of the
printing extension portion 10 of the lower shiplap portion 110A on
the building board 100A coincides with that of the pattern convex
portion 101A on the building board 100A, and the both portions have
the same width. That is, h=H. Accordingly, one edge of the printing
extension portion 10 and the corresponding one edge of the pattern
convex portion 101A are on the same straight line, and the other
edge of the portion 10 and the other edge of the portion 101A are
on the same straight line.
[0028] FIG. 1B is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 1A. In this case, it is assumed that the building
board 100B on the right side is arranged so as to be shifted from
the board 100A upward by a distance DELTA d. A pattern convex
portion 101B of the building board 100B on the right side is
shifted by a distance DELTA d upward from the printing extension
portion 10 of the lower shiplap portion 110A on the building board
100A on the left side. That is, in this example, the shift amount
of DELTA d between the two building boards is exactly equal to the
shift amount between the pattern convex portion 101B on the
building board 100B on the right side and the printing extension
portion 10 of the lower shiplap portion 110A in the building board
100A on the left side.
[0029] In the example shown in FIG. 1C, the central axis of the
printing extension portion 10 of the lower shiplap portion 110A on
the building board 100A coincides with that of the pattern convex
portion 101A, but the widths of the both portions are different
from each other. That is, h>H. It is assumed that h=H+2p. One
edge of the printing extension portion 10 is shifted by a distance
p outward from the corresponding edge of the pattern convex portion
101A, and the other edge of the portion 10 is shifted by a distance
p outward from that of the portion 101A. FIG. 1D is a view showing
a state in which another building board 100B is abutted to the
right side of the building board 100A shown in FIG. 1C. In this
case, it is assumed that the building board 100B on the right side
is arranged so as to be shifted from the board 100A upward by a
distance DELTA d. The upper edge of the pattern convex portion 101B
of the building board 100B on the right side is shifted by a DELTA
d-p from the upper edge of the printing extension portion 10 of the
lower shiplap portion 110A on the building board 100A on the left
side. This shift amount of DELTA d-p may become sufficiently small
not to cause the feeling of wrongness in appearances. However, the
lower edge of the pattern convex portion 101B of the building board
100B on the right side is shifted upward by a DELTA d+p from the
lower edge of the printing extension portion 10 of the lower
shiplap portion 110A on the building board 100A on the left side.
This shift amount of DELTA d+p may be larger than the shift amount
of DELTA d between the two building boards to cause the feeling of
wrongness in appearances.
[0030] In the example shown in FIG. 1E, the central axis of the
printing extension portion 10 of the lower shiplap portion 110A on
the building board 100A coincides with that of the pattern convex
portion 101A, but the widths of the both portions are different
from each other. That is, h<H. It is assumed that h=H-2p. One
edge of the printing extension portion 10 is shifted inward by a
distance p from the corresponding edge of the pattern convex
portion 101A, and the other edge of the portion 10 is shifted by a
distance p inward from that of the portion 101A. FIG. 1F is a view
showing a state in which another building board 100B is abutted to
the right side of the building board 100A shown in FIG. 1E. In this
case, it is assumed that the building board 100B on the right side
is arranged so as to be shifted from the board 100A upward by a
distance DELTA d. The lower edge of the pattern convex portion 101B
of the building board 100B on the right side is shifted upward by a
DELTA d-p from the lower edge of the printing extension portion 10
of the lower shiplap portion 110A on the building board 100A on the
left side. This shift amount of DELTA d-p may become sufficiently
small not to cause the feeling of wrongness in appearances.
However, the upper edge of the pattern convex portion 101B of the
building board 100B on the right side is shifted upward by a DELTA
d+p from the upper edge of the printing extension portion 10 of the
lower shiplap portion 110A on the building board 100A on the left
side. This shift amount of DELTA d+p may be larger than the shift
amount of DELTA d between the two building boards to cause the
feeling of wrongness in appearances.
[0031] In the example shown in FIG. 2A, the central axis of the
printing extension portion 10 of the lower shiplap portion 110A on
the building board 100A is shifted by a distance p upward from that
of the pattern convex portion 101A on the building board 100A, but
the both portions have the same width. That is, h=H. One edge of
the printing extension portion 10 is shifted upward by a distance p
from the corresponding one edge of the pattern convex portion 101A,
and the other edge of the portion 10 is shifted by a distance p
upward from the other edge of the pattern convex portion 101A.
[0032] FIG. 2B is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 2A. In this case, it is assumed that the building
board 100B on the right side is arranged so as to be shifted by a
distance DELTA d upward from the board 100A. One edge of the
pattern convex portion 101B of the building board 100B on the right
side is shifted by a distance of DELTA d-p upward from the
corresponding one edge of the printing extension portion 10 of the
lower shiplap portion 110A on the building board 100A on the left
side, and the other edge of the portion 101B is shifted by a
distance of DELTA d-p upward from that of the printing extension
portion 10 of the portion 110A on the board 100A on the left side.
This shift amount of DELTA d-p may become sufficiently small not to
cause the feeling of wrongness in appearances.
[0033] FIG. 2C is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 2A. In this case, it is assumed that the building
board 100B on the right side is arranged so as to be shifted by a
distance DELTA d downward from the board 100A. One edge of the
pattern convex portion 101B of the building board 100B on the right
side is shifted by a distance of DELTA d+p downward from the
corresponding one edge of the printing extension portion 10 of the
lower shiplap portion 110A on the building board 100A on the left
side, and the other edge of the portion 101B is shifted by a
distance of DELTA d+p downward from that of the printing extension
portion 10 of the portion 110A on the board 100A on the left side.
This shift amount of DELTA d+p may become larger than the shift
amount of DELTA d between the two building boards to have a
possibility that the feeling of wrongness in appearances is
caused.
[0034] Other examples of a building board according to the present
invention will be explained, referring to FIG. 3A through FIG. 3D.
According to the present example, the lower shiplap portion 110A on
the building board 100A is printed as an extended part of the
pattern convex portion 101A as shown in FIG. 3A. Here, a printed
portion on the lower shiplap portion 110A is called a printing
extension portion 10. The printing extension portion 10 includes a
center portion 11 having the same pattern and color as those of a
part of the pattern convex portion 101A, and auxiliary portions 12
and 13 at the both sides. The brightness of the color of the
auxiliary portion 12 and 13 are reduced to, for example, half in
that of the pattern convex portion.
[0035] When it is assumed that the length of the lower shiplap
portion 110A, which is measured along the printing direction of the
building board 100A, is F, and the length of the printing extension
portion 10 in the portion 110A is f, f.ltoreq.F. It is also assumed
that the width of the pattern convex portion 101A is H, and the
width of the printing extension portion 10 of the lower shiplap
portion 110A is h. The width of the printing extension portion 10
is H+p, that of the center portion 11 is H-p, and the width for
each of the auxiliary portions 12 and 13 is p. The central axis of
the printing extension portion 10 is shifted by a distance p/2
upward from that of the pattern convex portion 101A.
[0036] The upper edge of the printing extension portion 10, that
is, the upper edge of the upper auxiliary portion 12 is shifted by
a distance p upward from the upper edge of the pattern convex
portion 101A. The lower edge of the printing extension portion 10,
that is, the lower edge of the lower auxiliary portion 13 coincides
with the lower edge of the pattern convex portion 101A. The lower
edge of the center portion 11 is shifted by a distance p upward
from the lower edge of the pattern convex portion 101A.
[0037] FIG. 3B is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 3A. In this case, it is assumed that the building
board 100B on the right side is arranged so as to be shifted by a
distance DELTA d upward from the board 100A. The upper edge of the
pattern convex portion 101B of the building board 100B on the right
side is shifted by DELTA d upward from the upper edge of the center
portion 11 in the printing extension portion 10 of the lower
shiplap portion 110A on the building board 100A on the left side.
However, the auxiliary portion 12 is arranged between the upper
edge of the pattern convex portion 100B of the building board 100B
on the right side and the upper edge of the center portion 11 in
the printing extension portion 10 of the building board 100A on the
left side. The upper edge of the pattern convex portion 101B of the
building board 100B on the right side is shifted by DELTA d-p
upward from the upper edge of the auxiliary portion 12 in the
printing extension portion 10 on the building board 100A on the
left side. This shift amount of DELTA d-p may become sufficiently
small, and, moreover, the pattern convex portion 101B of the
building board 100B and the auxiliary portion 12 have the same hue
and are different only in their brightness so as to cause a state
in which the brightness of the auxiliary portion 12 is slightly
reduced for printing. Accordingly, a shadow effect by blurring is
realized, and the feeling of wrongness in appearances is not
caused. The lower edge of the pattern convex portion 101B of the
building board 100B on the right side is shifted by DELTA d-p
upward from the lower edge of the center portion 11 in the printing
extension portion 10 of the lower shiplap portion 110A on the
building board 100A on the left side. This shift amount of DELTA
d-p may become sufficiently small, and, moreover, the building
board 100B and the auxiliary portion 13 have the same hue and are
different only in their brightness so as to cause a state in which
the brightness of the auxiliary portion 13 is slightly reduced for
printing. Accordingly, a shadow effect by blurring is realized, and
the feeling of wrongness in appearances is not caused.
[0038] FIG. 3C is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 3A. In this case, it is assumed that the building
board 100B on the right side is arranged so as to be shifted by a
distance DELTA d downward from the board 100A. The upper edge of
the pattern convex portion 101B of the building board 100B on the
right side is shifted by DELTA d+p downward from the upper edge of
the auxiliary portion 12 in the printing extension portion 10 of
the lower shiplap portion 110A on the building board 100A on the
left side, and by DELTA d downward from the upper edge of the
center portion 11 in the printing extension portion 10. The lower
edge of the pattern convex portion 101B of the building board 100B
on the right side is shifted by DELTA d+p downward from the lower
edge of the center portion 11 in the printing extension portion 10
of the lower shiplap portion 110A on the building board 100A on the
left side, and by DELTA d downward from the lower edge of the
auxiliary portion 13 in the printing extension portion 10 of the
lower shiplap portion 110A. As the shadow effect by blurring is
similarly realized on the auxiliary portions 12 and 13, the feeling
of wrongness caused by the shift amount of DELTA d is remarkably
reduced in comparison with the case of FIG. 2C.
[0039] FIG. 3D is a view showing a state in which another building
board 100B is abutted to the right side of the building board 100A
shown in FIG. 3A. In this case, it is assumed that the central axis
of the pattern convex portion 101B of the building board 100B on
the right side is arranged so as to coincide with the central axis
of the pattern convex portion 101A on the building board 100A on
the left side. The upper edge of the pattern convex portion 101B of
the building board 100B on the right side is shifted by DELTA p
downward from the upper edge of the auxiliary portion 12 in the
printing extension portion 10 of the lower shiplap portion 110A on
the building board 100A on the left side, but coincides with the
upper edge of the center portion 11 in the printing extension
portion 10 of the lower shiplap portion 110A. The lower edge of the
pattern convex portion 101B of the building board 100B on the right
side is shifted by DELTA p downward from the lower edge of the
center portion 11 in the printing extension portion 10 of the lower
shiplap portion 110A on the building board 100A on the left side,
but coincides with the lower edge of the auxiliary portion 13 in
the printing extension portion 10 of the lower shiplap portion
110A. As the shadow effect by blurring is similarly realized on the
auxiliary portions 12 and 13, the feeling of wrongness caused by
the shift amount of DELTA p is remarkably reduced.
[0040] As the auxiliary portions have been provided at the both
sides of the center portion in the printing extension portion of
the lower shiplap portion in this example as described above, the
feeling of wrongness in appearances caused by a shift amount by
construction between abutting building boards is effectively
reduced.
[0041] Subsequently, a method for printing a building board
according to the present invention, more particularly, a method for
printing a printing extension portion in a shiplap portion will be
explained, referring to FIG. 4A through FIG. 5B. In this example, a
pattern and a color for a printing extension portion are made,
using image processing software for a computer, and they are
converted into print data, and are supplied to a printing device.
Here, a method by which an image for a printing extension portion
is made on a screen of a display device connected to a computer
will be explained. Here, the computer has stored image data for
patterns and colors of a pattern convex portion on an building
board beforehand.
[0042] As shown in FIG. 4A, an image in a right end portion of the
building board 100A arranged on the left side, and an image in a
left end portion of the building board 100B arranged on the right
side are displayed on a screen 400 of a display device. Then, the
two images are jointed through a boundary line L-L as shown in FIG.
4B in such away that the pattern convex portion 101A on the
building board 100A on the left side coincides with the pattern
convex portion 101B on the building board 100B on the right side.
Subsequently, a portion 401 corresponding to a part within a range
of, for example, 2 mm from the boundary line L-L is cut out from
the pattern convex portion 101A on the building board 100A on the
left side, and a portion 402 corresponding to a part within a range
of, for example, 1 mm from the boundary line L-L is cut out from
the pattern convex portion 101B on the building board 100B on the
right side.
[0043] The reason that the cut portion 401 is largely cut out is
that the lower shiplap portion 110A is an extended portion of the
designed surface of the building board, and a centerpiece for
extension printing of the pattern convex portion 101A. Moreover,
the dimension of the cut portion 402 is set shorter in order to
prevent a state in which an influence on the side of the pattern
convex portion 101B cannot be neglected when the width of an
abutting joint portion is extremely extended (though the
probability that the state is caused is low). Obviously, only the
cut portion 401 may be cut out.
[0044] The two images 401 and 402, which have been cut out, are
jointed as shown in FIG. 5A. As shown in FIG. 5B, added regions 403
and 404, each of which has the same width as that of the
rectangular image and a height of p (for example, 1 mm), are
respectively provided on and under rectangular images formed by
jointing. Then, there is executed image processing by which an
image in the rectangular region with a width of p from the top of
an image (401+402) is cut out and is pasted on the added region
403; an image in the rectangular region with a width of p from the
bottom of the image (401+402) is cut out, and is pasted on the
added region 404; and the brightness of each of the pasted images
is reduced to half. Here, there is formed a composite image 405
which expresses the image (401+402) expressing the extended part of
the right end portion of the building board 100A and the extended
part of the left end portion of the building board 100B; and the
extended parts of the top and bottom end portions. The image in the
printing extension portion, which has been obtained above, is
converted from a red green blue code into a cyan magenta yellow
black one, and, then, is supplied to the printing device.
[0045] FIG. 6 is a view showing the printing extension portion
which has been printed according to the printing method which has
been explained, referring to FIG. 5A and FIG. 5B. The printing
extension portion includes the center portion 11, and the auxiliary
portions 12 and 13, and the center portion 11 includes a left side
portion 111 and a right side portion 112. The pattern and color of
the left side portion 111 and those of the image in a region with
the same area in the abutting pattern convex portion 101A are the
same, and the pattern and color of the right side portion 112 and
those of the image in a region with the same area in the abutting
pattern convex portion 101B are the same.
[0046] It will be appreciated by persons skilled in the art that
the invention is not limited to the above-described examples and
various modifications and applications may be made within the scope
of the invention described in the claims though examples according
to the present invention have been explained above.
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