Static structures (e.g. – buildings) – Multiroom or level – Curtain-wall; i.e. – panel attached outside floor or beam
Reexamination Certificate
2002-01-23
2002-12-31
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Multiroom or level
Curtain-wall; i.e., panel attached outside floor or beam
C052S506050, C052S547000, C248S300000, C248S301000, C248S304000, C248S220210, C403S381000
Reexamination Certificate
active
06499261
ABSTRACT:
CROSS-REFERENCES TO RELATED APPLICATIONS
The present application claims priority under 35 U.S.C. §119 to Japanese Patent Application No. 2001-016242, filed Jan. 24, 2001, entitled “FASTENING SEALING MEMBER AND SIDING BOARDS ATTACHMENT STRUCTURE”. The contents of this application are incorporated herein by reference in their entirety.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a fastening sealing member disposed at upper, lower, left, and right joint portion having four siding boards abutted thereat, fastening the siding boards to a building framework and preventing water leakage; and further relates to a siding boards attachment structure using the same.
2. Discussion of the Background
Conventionally, there are used siding boards attachment structures of type as shown in
FIG. 20
by way of example. The figure shows a siding boards attachment structure
8
in which a fastening member
9
is disposed to engage an upper end portion
21
of a siding board
2
positioned on the lower side and a lower end portion
22
of another siding board
2
positioned on the upper side as shown in
FIG. 20
, and the siding boards
2
and
2
are fixed to a building framework
3
via a furring strip
89
and the like.
As shown in
FIGS. 20 and 21
, the fastening member
9
has a base plate portion
91
, a supporting portion
92
, an upper-board engagement portion
93
, and a lower-board engagement portion
94
. The base plate portion
91
abuts against rear side surfaces
26
of the siding boards
2
disposed vertically. The supporting portion
92
is formed forwardly from the base plate portion
91
. The upper-board engagement portion
93
is formed to bend in a slant and upper direction from the supporting portion
92
. The lower-board engagement portion
94
is formed to bend in a slant and lower direction from the supporting portion
92
. A front flat plate
934
is contiguously provided at tip ends of the upper-board engagement portion
93
and lower-board engagement portion
94
.
The base plate portion
91
, as shown in
FIG. 21
, has a sloped portion
911
retracted diagonally and backwardly at its upper part and a lower leg portion
912
bent backwardly by substantially 90 degrees at its lower end.
In the siding boards attachment structure
8
, as shown in
FIG. 20
, a heat insulator
83
as an underlayment such as a sheathing board is fixed to a front face of a framework
3
such as studs. The furring strip
89
is fixed to the framework
3
via a waterproof paper
82
from the front face of the heat insulator
83
. Further, on the front face of the furring strip
89
, the fastening member
9
is disposed and is fixed to the framework
3
with a screw
4
.
The fastening member
9
is fitted to the siding boards
2
in a manner that the upper end portion
21
of the siding board
2
on the lower side is engaged with the lower-board engagement portion
94
; the siding board
2
on the upper side is supported by the supporting portion
92
, and the lower end portion
22
is engaged with the upper-board engagement portion
93
.
In the siding boards attachment structure
8
, the furring strip
89
is disposed in the above-described manner, thereby making it possible to provide a ventilation space
81
having a sufficient thickness between the heat insulator
83
and the siding board
2
. The ventilation properties are provided in this manner, thereby preventing an occurrence of condensation, preventing corrosion or degradation of the siding board
2
or framework
3
and the like due to water absorption, and improving the durability of the siding boards attachment structure
8
.
However, in the siding boards attachment structure
8
, since it is required to install the furring strip
89
, there is a problem that a large number of works is required and a material cost increases.
Specifically, when the siding boards attachment structure
8
is constructed, it is required to prepare a furring strip
89
having regulated dimensions. Further, a work step of nailing the furring strip
89
to the framework
3
is required.
If the furring strip
89
is not used, as shown in
FIG. 22A
, there is provided a siding boards attachment structure
80
in which a heat insulator
84
is disposed on the front face of the framework
3
, and a fastening member
9
is fixed to the framework
3
via a waterproof paper
82
from the front face of the heat insulator
84
.
As the heat insulator
84
, for example, there are employed Styrofoam, a sheathing board, an oriented strand board (OSB) and the like.
In the siding boards attachment structure
80
, a furring strip is not used. Thus, a ventilation space
81
is not sufficiently secured in consideration of bend of the waterproof paper
82
.
In the siding boards attachment structure
80
, in the case where a soft heat insulator
84
is used, the fastening member
9
is fixed to the surface of the soft heat insulator
84
. Thus, as shown in
FIG. 22B
, the fastening member
9
is buried into the heat insulator
84
, and there is an apprehension that stable fixing cannot be achieved. In particular, as in the fastening member
9
, if a contact area between the heat insulator
84
and the lower leg portion
912
is small, the lower leg portion
912
is easily buried into the heat insulator
84
. The fastening member
9
may be inclined.
As a result, as shown in
FIG. 22B
, the siding board
2
fastened by the fastening member
9
is placed in an unstable condition, thereby making it difficult to substantially fix the fastening member
9
to the framework.
As shown in FIG.
23
and
FIG. 24
, there is a siding boards attachment structure
800
with four-side (left, right, upper and lower sides) shiplap structure in which the fastening member
9
is disposed at a corner portion
25
of each siding board
2
, and each siding board
2
is fixed to an underlayment
890
.
The siding board
2
with four-side shiplap structure has: an upper underlying tongue portion
210
and a lower overlying tongue portion
220
provided respectively at its upper end portion
21
and lower end portion
22
; and a lateral underlying tongue portion
23
and a lateral overlying tongue portion
24
provided at the left and right sides respectively. Then, the lower overlying tongue portion
220
of the siding board
2
on the upper side is attached to be superimposed on the upper underlying tongue portion
210
of the siding board
2
on the lower side, and a lateral overlying tongue portion
24
of the siding board
2
on the right side is attached to be superimposed on a lateral underlying tongue portion
23
of the siding board
2
on the left side.
In addition, as shown in FIG.
23
and
FIG. 24
, caulking materials
29
are provided at each of the upper underlying tongue portion
210
and the lateral underlying tongue portion
23
of the siding board
2
. The lower overlying tongue portion
220
or lateral overlying tongue portion
24
of another siding board
2
is superimposed from the front of this caulking material
29
, and the caulking material
29
is pressurized, thereby preventing water penetration into the siding boards attachment structure
9
from a joint gap portion
27
of the siding boards
2
.
However, in the siding boards attachment structure
800
, although the caulking material
29
is provided, water leakage cannot be always prevented completely. The reasons are stated as follows.
In the siding boards attachment structure
800
, the fastening member
9
is installed at a joint portion of the four siding boards
2
, i.e., at a portion at which corner portions
25
of four siding boards
2
are disposed to be opposed to each other (FIG.
23
). As shown in FIG.
23
and
FIG. 24
, the supporting portion
92
and the front flat plate
934
of the fastening member
9
are disposed between the lower end portion
22
of the siding board
2
on the upper side and the upper end portion
21
of the siding board
2
on the lower side.
Therefore, the caulking materials
29
provided at the lateral underlying tongue portion
23
of the sid
Friedman Carl D.
McDermott Kevin
Nichiha Co., Ltd.
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