Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Element spaced from wall – ceiling – or floor and held by...
Reexamination Certificate
2001-06-27
2003-09-09
Friedman, Carl D. (Department: 3637)
Static structures (e.g., buildings)
Sheetlike element assembled parallel to existing wall,...
Element spaced from wall, ceiling, or floor and held by...
C052S506090, C052S509000, C052S135000, C403S381000, C248S304000, C248S220210
Reexamination Certificate
active
06615560
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a siding boards attachment structure in which a siding board which has left and right shiplap or four sides shiplap is attached to an underlayment (for instance furring strips) using a securing metal fitting, and the invention also relates to a sealing member used therefor, a siding board and a method of attaching siding boards.
2. Discussion of the Background
Conventionally, there exists a siding boards attachment structure in which siding boards are attached to an underlayment and these siding boards are jointed with each other using shiplap joint structure on the left and right side or four side (left, right, upper and lower sides) of each siding board.
For example, a siding board
92
including a four side shiplap structure shown in
FIG. 16
has an upper underlying tongue portion
922
formed on an upper side of the siding board
92
, a lower overlying tongue portion
921
formed on a lower side of the siding board
92
, a lateral underlying tongue portion
924
formed on a right side of the siding board
92
and a lateral overlying tongue portion
923
formed on a left side of the siding board
92
. When upper and lower siding boards are jointed to each other, the lower overlying tongue portion
921
of the upper siding board
92
is superposed on the upper underlying tongue portion
922
of the lower siding board
92
. When the left and right siding boards are jointed to each other, the lateral overlying tongue portion
923
of the right siding board
92
is superposed on the lateral underlying tongue portion
924
of the left siding board
92
.
As shown in
FIG. 16
, usually, caulking material
929
is adhered on the flat surface of the upper underlying tongue portion
922
and the lateral underlying tongue portion
924
of the siding board
92
. The back surfaces of lower overlying tongue portion
921
and the lateral overlying tongue portion
923
of one of the siding boards
92
press the caulking material
929
on the other siding boards, thereby preventing water from leaking from a gap of the joint portion of the siding boards
92
.
In this case, the caulking material
929
is covered with the lower overlying tongue portion
921
or the lateral overlying tongue portion
923
, and the caulking material
929
is not exposed from the front of the siding board. Therefore, it is possible to obtain a siding boards attachment structure which is excellent from the viewpoint of outward appearance design.
The siding boards
92
are fixed to each other using securing metal fittings
5
. These securing metal fittings
5
are formed such that they can be fitted to an upper surface shape of the upper underlying tongue portion
922
and a back surface shape of the lower overlying tongue portion
921
. These securing metal fittings
5
are disposed at connecting portions where four siding boards
92
are butted into one another so that each of the siding boards
92
is fixed to the underlayment such as furring strip mounted to a framework.
However, in actuality, even though the caulking material
929
for preventing inundation is adhered, an adverse possibility that rainwater and the like may be lead inside of the siding boards attachment structure
9
is not avoided completely.
That is, as shown in
FIG. 17
, rainwater
6
coming from a gap
927
of the joint portion between left and right two adjacent siding boards
92
is prevented from moving laterally (right in
FIG. 17
) by the caulking material
929
, and the rainwater
6
passes through the gap
927
of the joint portion and falls downward.
However, the caulking material
929
adhered on the lateral underlying tongue portion
924
of the siding board
92
is not continuous in an opposed gap
928
to which the lateral underlying tongue portion
924
of the upper and lower siding boards
92
. Therefore, when the rainwater
6
falling down through the gap
927
of the joint portion reaches the opposed gap
928
, a portion of the rainwater
6
enters into the siding boards attachment structure
9
.
More specifically, as shown in
FIG. 18
, in a construction state in which the securing metal fitting
5
is disposed at a corner of the siding board
92
, the rainwater
6
falling down through the gap
927
of the joint portion passes through a front surface of a front flat plate
57
of the securing metal fitting
5
, and further moves downward toward the gap
927
of the joint portion.
However, the front flat plate
57
is not necessarily in tight contact with the back surface of the lower overlying tongue portion
921
of the siding board
92
completely. Therefore, a portion of the rainwater
6
flows laterally through the front surface of the front flat plate
57
as shown in
FIG. 18
, falls on the upper underlying tongue portion
922
of the lower siding board
92
from a side end
59
, and moves toward a backside of the siding board
92
.
A portion of the rainwater
6
which has moved laterally through the front flat plate
57
moves laterally on a support portion
52
of the securing metal fitting
5
beyond the front flat plate
57
, and moves toward a backside of the siding board
92
from the side end
59
of the securing metal fitting
5
similarly.
As a result, when the siding board
92
or the underlayment
3
is made of material having poor water resistance such as a ceramic type siding board or wood-based furring, this becomes a cause of corrosion and deterioration.
The rainwater
6
entering from the gap
926
of the joint portion of the upper and lower siding boards
92
is prevented from moving upward by the lateral caulking material
929
adhered on the upper underlying tongue portion
922
, and is discharged forward from the wall surface.
Such an inconvenience can be naturally generated not only in the siding boards attachment structure which has four side shiplap joint, but also a siding boards attachment structure using siding boards having at least left and right shiplap structure.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a siding boards attachment structure and a method of attaching siding boards capable of substantially preventing water from entering inside of the siding boards, and to provide a sealing member and a siding board used for the siding boards attachment structure.
According to one aspect of the invention, a siding boards attachment structure, includes siding boards, at least one underlayment, securing metal fittings and at least one sealing member. The siding board has opposite right and left sides and opposite upper and lower sides. The siding board is provided at the opposite right and left sides with a lateral underlying tongue portion and a lateral overlying tongue portion, respectively. The lateral underlying tongue portion protrudes along a direction from the left side to the right side in a back surface side. A notched recess is notched along a direction from the right side to the left side in front of the lateral underlying tongue portion. The lateral overlying tongue portion protrudes along a direction from the right side to the left side in a front surface side. The siding boards are attached to the underpayment. The securing metal fitting is disposed at the opposite upper and lower sides of the siding boards in order to fix the siding boards. The sealing member is disposed between left and right adjacent siding boards, having a base plate portion, a rising plate portion, a front plate portion and a front resilient material. The base plate portion is secured to the underlayment. The rising plate portion is bent forward from the base plate portion and abuts against a side surface of the lateral underlying tongue portion of the siding board. The front plate portion is bent from a front end of the rising plate portion in the opposite direction from the base plate portion. The front resilient material is provided on a front surface of the front plate portion. The front plate portion engages with a front surface of the lateral underlying tongue portion of the siding
Friedman Carl D.
Nguyen Chi Q
Nichiha Co., Ltd.
LandOfFree
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