Joints and connections – With adjunctive protector – broken parts retainer – repair,... – Position or guide means
Reexamination Certificate
2001-05-29
2004-12-14
Tran A, Phi Dieu (Department: 3637)
Joints and connections
With adjunctive protector, broken parts retainer, repair,...
Position or guide means
C403S013000, C403S011000, C052S506050, C052S506060, C052S546000, C052S543000, C411S399000
Reexamination Certificate
active
06830405
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a fastening member which is adapted to be employed in a siding work for fastening building boards such as ceramic siding boards to the side of a building frame.
2. Description of the Related Arts
As an exterior finish work of a building, a board siding work for attaching ceramic siding boards (building boards) to the side of a building frame is usually performed.
For example, as shown in
FIGS. 5 and 6
, in the case of wood frame construction (two-by-four construction) for example, a framework
1
is assembled at first, and after an underlayment
2
such as a plywood and a moisture permeable waterproofing sheet as desired is attached to the framework
1
, ceramic building boards
40
are horizontally fastened via the underlayment
2
to the framework
1
by taking advantage of the studs
3
of the framework
1
.
In this case, a first building board
40
to be disposed at the lowest portion of the framework
1
is horizontally placed at first to the framework
1
and fastened thereto using nails
4
by taking advantage of studs
3
. Then, a second building board
40
to be fastened over the first building board
40
is horizontally placed with the lower rabbeted horizontal edge
40
a
of the second siding board being fitted over or engaged with the upper rabbeted horizontal edge
40
b
of the first building board
40
, and then fastened to the studs
3
in the same manner as illustrated above using nails
4
. Since the head
4
a
of the nail
4
employed in fastening the building board
40
is exposed in this case, thus deteriorating the external appearance or design of the finish, a coating coverage is usually subsequently applied to such an exposed head portion of the nails
4
. Further, there is also a possibility that the building boards
40
may be damaged due to the nailing work.
With a view to overcome the aforementioned problems, there is also known a method of fastening building boards to the framework of a building frame by making use of a fastening member which is exclusively designed for the fastening.
FIG. 8
illustrates one example of such a fastening member (Japanese Patent Unexamined Publication H10-2089). This fastening member
30
comprises a substrate
31
provided with an upstanding portion
31
a
extended rearward from the upper edge thereof and with an upstanding portion
31
b
extended rearward from the lower edge thereof, a concave portion
35
depressed rearward from the substrate
31
and having a peripheral wall
35
a,
a bottom
35
b
and an opening
35
c
formed in the bottom
35
b
for allowing a screw (a fixing member) to be screwed therein, and an engaging portion
33
which is formed contiguous to the distal end of the horizontal portion
32
extending forward from the substrate
31
. In this case, the upstanding portion
31
a
extending from the upper edge of substrate
31
is extended obliquely upward and provided with openings
34
b
for driving a nail (a fixing member).
The method of fastening the building board
40
shown in
FIG. 7
by making use of this fastening member
30
can be performed as explained below. In this case, all four sides of the building board
40
are respectively formed into a tongue portion for forming a shiplap joint. Specifically, the overlying tongue portion is formed at two sides thereof, i.e. a left side region extending from the left edge to a vicinity of the inner surface thereof and a lower side region extending from the lower edge to the inner surface thereof. The overlying tongue portion is consisted of an overlying tongue pattern-forming portion
41
forming the surface of board and a V-shaped groove portion
43
formed on the rear side, both portions being adapted to be piled on the underlying tongue portion. The specific configuration of the V-shaped groove portion
43
is formed such that can be engaged with the engaging portion of the fastening member to be employed.
On the other hand, the underlying tongue portion is formed at the remaining two sides thereof, i.e. a right side region extending from the pattern-forming right side edge to the vicinity of the outer side thereof and an upper side region extending from the pattern-forming upper edge to the outer side thereof. These two sides are respectively formed into an underlying tongue engaging portion
44
for receiving the overlying tongue pattern-forming portion
41
which is designed to be piled on the underlying tongue portion. Further, the specific configuration of latter underlying tongue portion is formed obliquely so as to be engaged with the engaging portion of the fastening member to be employed. Additionally, a caulking material
45
is adhered on the flat surface of both underlying tongue portions.
First of all, as shown in
FIG. 9
, the lower building board
40
B is horizontally fastened. Then, the fastening member
30
is contacted with the studs
3
in such a manner that the lower portion of the engaging portion
33
of the fastening member
30
is engaged with the underlying tongue engaging portion
44
of the building board
40
B. Then, a screw
5
c
(fixing member) is screwed into the studs
3
through the opening
35
c,
or a screw
5
a
(fixing member) is screwed into there through the opening
34
a,
or a nail (fixing member) is driven into there through the opening
34
b,
thereby fixing the fastening member
30
to the framework of a building.
Then, the V-shaped groove portion
43
of the next upper building board
40
A is engaged with the upper side of the engaging portion
33
of the fastening member
30
that has been fixed in advance to the framework, thereby horizontally positioning this upper building board
40
A along the studs
3
. Then, in the same manner as described above, the next fastening member
30
is engaged with the underlying tongue engaging portion
44
of the building board
40
A, and then, fixed to the studs
3
by making use of screws or nails. Thereafter, the same work as described above are repeated to attach the building boards
40
horizontally and in multistage to the side of a building frame, thereby accomplishing a decorative external sidewall.
When an underlying member (the studs
3
) to which the aforementioned fastening member
30
is to be fixed is formed of a wooden member, the fixing member (nail)
5
b
can be inserted into the opening
34
b
formed in the obliquely extended upper upstanding portion
31
a
and driven obliquely downward into the studs
3
, thereby fixing the fastening member
30
thereto. On this occasion, a component force directed downward is acted on the fastening member
30
to thereby push it downward. As a result, the fastening member
30
is caused to be positioned and fixed so as to enable it to firmly hold the building board
40
B without leaving any gap between the building board
40
B and the fastening member
30
. However, when an underlying member (the studs
3
) to which the aforementioned fastening member
30
is to be fixed is formed of a steel frame, the fastening member
30
is usually fixed by the screw
5
a
(fixing member) using the opening
34
a,
or fixed by the screw
5
c
(fixing member) using the opening
35
c,
in that case, the screwing into the steel frame is horizontal, because it is impossible to obliquely screwing the fixing member such as screw into the steel frame by making use of a power tool.
When the fixing member
5
a
is horizontally screwed into the steel frame from the opening
34
a
formed in the contacting portion
31
d,
it is impossible to enable a downwardly directed component force to be acted on the fastening member
30
. Further, the plan view of a portion between the peripheral wall
35
a
constituting a cone-shaped concave portion
35
and the bottom
35
b
of the concave portion
35
is circular in general, and further, with a view to smoothing the screwing work, the minimum diameter of the concave portion
35
is made larger than the diameter of the diametrically large head portion
5
d
of fixing member
5
c
so as to prevent the head po
A Phi Dieu Tran
Nichiha Corporation
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