JP2004332317A - Exterior wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exterior wall which enables packing to be surely mounted by avoiding interference with furring strips, even in the presence of the furring strips at the height of the mounting of the packing. <P>SOLUTION: In this exterior wall 1, an exterior wall material 4 is mounted on a wall part 3 of a skeleton 2 of a building via the furring strips 30, and the packing 8 is fitted and inserted into a clearance 7 between an upper end of the material 4 and an eave soffit 45. The packing 8 comprises: a main body part 8a which is inserted into the clearance 7 from an outdoor side so as to be supported on the upper end of the material 4; a locking part 8b which is protrusively provided downward at the outdoor-side end of the main body part 8a so as to be locked to the outer surface of the upper end of the material 4; at least two outdoor-side and indoor-side airtight piece parts 8e and 8f which are protrusively provided upward on the top surface part of the main body part 8a at an interval in the direction of insertion, so that each of tip sides can be brought into press-contact with an undersurface of the eave soffit 45; and a hooking part 8c which is protrusively provided downward at the indoor-side end of the main body part 8a so as to be hooked on the inner surface of the upper end of the material 4. The hooking part 8c is provided with a guide part 8d for elastically deforming the hooking part 8c upward by using reaction abutting on the furring strips 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an outer wall of a building, and more particularly to an outer wall having an improved packing structure inserted into a gap between an upper end portion of an outer wall material and a eave ceiling.
[0002]
[Prior art]
In recent years, in the outer wall, a ventilation method of attaching an outer wall material to a wall of a building frame via a ventilation layer has become mainstream. When the outer wall material is attached via the ventilation layer as described above, generally, a gap (joint portion) between the upper end of the outer wall material and the eaves ceiling is later provided with a waterproof seal.
[0003]
As a method of applying the seal, there is a wet joint method (also referred to as a sealing joint method) in which the gap is filled with a fluid sealing material. As shown in FIG. 6, this wet joint construction method involves forming a gap 7 between an upper end portion 4 c of an outer wall material 4 fixed to a wall portion 3 of a building frame 2 via a rim 30 and an eave ceiling 45. This is a method in which a backup material 101 is arranged in the back part in advance, and a sealing material 102 is filled into a space on the near side from the outdoor side and solidified.
[0004]
As another sealing method, there is a dry joint method (gasket method) in which an elastic packing (gasket) is inserted into the gap.
[0005]
[Problems to be solved by the invention]
By the way, the above-mentioned wet joint method has a problem that, due to aging of the sealing material, peeling of the bonding surface and breakage of the material occur, thereby reducing water-tightness and air-tightness. is there. In addition, there is a problem in that the application of the sealing material requires skill and costs.
[0006]
On the other hand, the dry joint method in which the packing is inserted into the joint can almost eliminate the problem of such a wet joint method, but there is a possibility that the packing may be pushed too far into the deep part of the gap or the packing may fall out of the gap, It is difficult to install the packing securely. In order to prevent the packing from coming off, it is conceivable to provide a hook at the front end in the insertion direction of the packing so as to be hooked on the inner surface of the upper end of the outer wall material 4. However, as shown in FIG. In the case where such a building is present, the hook portion interferes with the rim 30 and does not catch on the inner surface of the upper end of the outer wall material, and it is difficult to securely install the packing. At present.
[0007]
The present invention has been made in consideration of the above circumstances, and even when a packing edge is present at the mounting height of the packing, the packing can be securely attached while avoiding interference with the packing edge, thereby improving workability. It is intended to provide an outer wall that can be designed.
[0008]
[Means for Solving the Problems]
The present invention is an outer wall in which an outer wall material is attached to a wall of a building frame through a rim, and a packing is inserted into a gap between an upper end portion of the outer wall material and an eaves ceiling. A main body portion inserted from the outdoor side and supported by the upper end of the outer wall material, a locking portion projecting downward at the outdoor side end of the main body portion and locked to the upper end outer surface of the outer wall material, At least two outdoor-side and indoor-side hermetic pieces protruding upward from the upper surface of the main body at an interval in the insertion direction and each of the front ends being in press contact with the lower surface of the eave ceiling; A hook portion protruding downward at the indoor side end and hooking on the inner surface of the upper end of the outer wall material, and the hook portion is elastically deformed upward by a reaction force abutting the body edge. It is characterized in that a guide portion for causing the guide is provided.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0010]
1A and 1B show a main part configuration of an embodiment, in which FIG. 1A is a cross-sectional view at a position where a trunk edge does not exist, FIG. 1A is a cross-sectional view at a position where a trunk edge exists, and FIG. FIG. 3 is a plan view of the same part as viewed from above, and FIG. 4 is a perspective view showing a manner of attaching the body edge.
[0011]
In FIG. 1, reference numeral 1 denotes an outer wall, and the outer wall 1 includes an outer wall member 4 attached to a wall 3 of a building frame 2 via a body edge (vertical body edge) 30. Reference numeral 45 denotes a horizontal eave ceiling, and a gap (joint part) 7 having a predetermined size is provided between the eave ceiling 45 and the upper end 4c of the outer wall material 4, and packing (gasket) is provided in the gap 7 as a dry joint method. ) 8 is inserted from the outdoor side (outdoor side).
[0012]
In the structure to which the outer wall 1 is applied in this case, as shown in a schematic configuration in FIG. 4, a rim 30 is arranged outside the wall 3 of the building frame 2, and a nail is inserted through the rim 30. The outer wall material 4 (see FIG. 1B) is fixed to the wall 3 of the skeleton 2 by a fixing tool such as the above. With the body edge 30 interposed, a ventilation layer 23 having a predetermined gap is formed between the wall 3 of the frame 2 and the outer wall material 4. Note that a moisture-permeable waterproof paper 26 is stretched over the wall 3 of the frame 2.
[0013]
The outer wall material 4 is made of a ceramic exterior material (siding) such as a tile or a brick, and is formed in a panel shape having a predetermined dimension. As a method of attaching the outer wall material 4, there are a vertical tension attached in a vertically long state and a horizontal tension attached in a horizontally long state, but any method may be used. Also. The outer wall material 4 may be a metal panel.
[0014]
The packing 8 is made of an elastically deformable rubbery or soft resin, for example, a thermoplastic elastomer (TPE) -based material, and is formed by extrusion to have a long shape that is continuous in the direction perpendicular to the plane of FIG. I have. The packing 8 has a band-shaped main body portion 8a that is supported so that the lower surface thereof is in contact with the upper end portion 4c of the outer wall material 4, and a rear end portion (outdoor side) of the main body portion 8a in the insertion direction (width direction). Has an engaging portion 8b protruding downward. The locking portion 8b has a function of restricting excessive insertion of the packing 8 into the indoor side by being locked to the upper end outer surface 4a of the outer wall material 4.
[0015]
Further, a hooking portion 8c which is hooked on the upper end inner surface 4b of the outer wall material 4 to prevent the packing 8 from coming off is protruded downward from the tip end (indoor end) of the main body portion 8a in the insertion direction. I have. The locking portion 8b and the hooking portion 8c are formed continuously in the longitudinal direction of the packing. At the front end of the hook portion 8c, an inclined guide portion (which can be referred to as a guide surface or an inclined surface) 8d for elastically deforming the hook portion 8c upward by a reaction force abutting on the body edge 30 is provided. . The hook portion 8c is formed in a hook shape having a guide portion 8d inclined at the front end in the insertion direction. When the packing 8 is inserted into the gap 7 from the outdoor side, the guide portion 8d hits the outer wall material 4. Thus, the packing 8 is elastically bent upward and resiliently restored upon completion of the insertion of the packing 8, so that the packing 8 is caught on the inner surface 4 b at the upper end of the outer wall member 4 and functions to prevent the packing 8 from coming off to the outdoor side. .
[0016]
Since the hook 8c has flexibility, as shown in FIG. 1 (a), in a portion where the body edge 30 does not exist at the position where the packing 8 is inserted, the outer wall is elastically restored to almost the original shape. The inner surface 4b of the member 4 is engaged. Further, in a portion where the body edge 30 exists at the insertion position of the packing 8, the body edge 30 is pressed by the body edge 30 and locally bends and deforms upward, thereby avoiding interference with the body edge 30. As shown in FIGS. 2 and 3, the hook 8c is locally deformed flexibly depending on the presence or absence of the waist edge 30, so that the packing 8 is inserted into the gap 7 without any trouble and the gap is sealed. And the packing 8 can be securely attached and held in the gap 7.
[0017]
The packing 8 sandwiches the upper end of the outer wall material 4 in the thickness direction by a hooking portion 8c and a locking portion 8b provided at both front and rear ends in the insertion direction into the gap 7, whereby the packing 8 itself can It is designed to be held and fixed to the upper end. Further, in a state where the lower surface of the main body portion 8a is in surface contact with the fore edge 4c of the outer wall material 4, the hooking portion 8c and the locking portion 8b in the front and rear directions of insertion insert the upper and lower corners of the outer wall material 4 on the indoor side and the outdoor side. In addition, since the inner surface of the locking portion 8b is in close contact with the upper end outer surface 4a of the outer wall member 4, both corners of the outer wall member 4 can be protected, and the outer wall member 4 and the packing 8 can be protected. The airtightness and the watertightness between them can be maintained.
[0018]
On the upper surface of the main body 8a of the packing 8, at least two outdoor and indoor fin-shaped airtight pieces 8e and 8f project upward at intervals in the insertion direction of the main body 8a. ing. These airtight pieces 8e and 8f are elastically folded and deformed to the outdoor side with the insertion of the packing 8 from the outdoor side into the gap 7 with the eaves ceiling 45, so that the side surfaces at the respective tip sides are the eaves ceiling. The lower surface of the gasket 45 is in pressure contact with the lower surface of the gasket 45 to thereby define an air space 9 therebetween, and is formed continuously in the longitudinal direction of the packing 8. The protruding lengths of the airtight pieces 8e and 8f are set to dimensions that can reliably close the gap 7 with the eaves ceiling 45 with a margin.
[0019]
The air layer 9 defined between the two airtight pieces 8e and 8f is a space for decompression, and when this air layer 9 is secured, the wind pressure on the outdoor side of the outer wall material 4 is Pa and the outer wall is Assuming that the air pressure on the indoor side of the material 4 is Pc and the air pressure of the air layer 9 is Pb, the wind pressure changes stepwise as Pa>Pb> Pc. The pressure difference at the boundary is reduced, and it is possible to prevent rainwater from entering the indoor side due to the pressure difference.
[0020]
Further, when a perpendicular line Ls which is perpendicular to the sloped eaves ceiling 45 through the outdoor side corner A of the outer wall material 45 is drawn, the contact point B of the outdoor side airtight piece 8e with respect to the eaves ceiling 45 has a dimension a larger than the perpendicular line Ls. The contact C to the eaves ceiling 45 of the airtight piece 8f on the indoor side is located on the indoor side by the dimension b from the perpendicular Ls, and the contact C is an extension of the upper end outer surface of the outer wall material 4. The airtight pieces 8e and 8f are located closer to the indoor side by a dimension c (c = b when the eaves ceiling 45 is horizontal) than Lt (Lt = Ls when the eaves ceiling 45 is horizontal). Shape, position, and elasticity are determined. That is, when considering a triangle ABC having points A, B, and C as vertices, the positions of the contact points B and C are determined such that the angles B and C are acute angles.
[0021]
Therefore, the moment around the point A (the counterclockwise moment in the figure) due to the force of the contact point B of the outdoor airtight piece portion 8e pressing against the eaves ceiling 45, the inner surface of the locking portion 8b is moved to the outer surface of the upper end of the outer wall material 4. 4a. The moment around the point A (the clockwise moment in the figure) caused by the force of the contact C of the airtight piece 8f on the indoor side pressing against the eaves ceiling 45 acts on the lower surface of the main body 8a. Acts as a force that strongly presses against the upper end portion 4c of the outer wall material 4, and as a result, the tightness of the packing 8 against the outer wall material 4 is enhanced, and the airtightness and watertightness are improved, and the packing 8 is held in a well-balanced manner. Will be. When the airtight pieces 8e and 8f press the inclined eaves ceiling 45, a component force toward the indoor side acts on the packing 8 arranged on the upper end 4c of the outer wall material 4. Therefore, the displacement of the packing 8 is prevented and the packing 8 is prevented from coming off by balancing the component force and the locking force of the locking portion 8a.
[0022]
When the packing 8 is attached to the upper end of the outer wall material 4, the two hermetic pieces 8 e and 8 f are directed upward and the hook 8 c is attached to the outer wall material 4 on the outer side of the outer wall material 4 and below the eaves ceiling 45. The packing 8 is prepared with the posture toward. Next, the front end of the hook 8c is inserted into the gap 7 between the upper end of the outer wall material 4 and the eaves ceiling 45 while the two airtight pieces 8e and 8f are curved and pressed against the lower surface of the eaves ceiling 45. At this time, the packing 8 easily enters the gap 7 while the hook 8c is bent upward by the guiding action of the guide 8d at the front end of the hook 8c.
[0023]
Next, when the packing 8 is further inserted, the contact C of the airtight piece portion 8f on the indoor side with respect to the eaves ceiling 45 enters the indoor side beyond the perpendicular Ls passing through the point A drawn from the eaves ceiling 45 described above. A clockwise moment in the drawing acts on the packing 8 by the elastic reaction force of the airtight piece 8f pressed against the eaves ceiling 45, and the main body 8a of the packing 8 is applied to the upper end 4c of the outer wall material 45 by the moment. Pressed. At that time, the hooking portion 8c slides on the upper end portion 4c of the outer wall material 4 in a posture bent upward, and at the time when the tip hook portion of the hooking portion 8c exceeds the position of the upper end inner surface 4b of the outer wall material 4. As shown in FIG. 1A, the hook portion 8c is elastically restored and is hooked on the inner surface 4b at the upper end of the outer wall member 4, whereby the packing 8 is prevented from coming off. In addition, at the position where the waist edge 30 is present, as shown in FIG. 1B, the front edge guide portion 8d of the hook portion 8c hits the waist edge 30 so that the hook portion 8c is lifted up as it is. Will be retained. Further, as the packing 8 is inserted, the locking portion 8 d is locked to the upper end outer surface 4 a of the outer wall member 4 at an appropriate position, so that the packing 8 does not excessively enter the gap 7.
[0024]
According to the outer wall 1 having the above-described configuration, the outer wall material 4 is attached to the wall 3 of the building frame 2 via the rim 30, and the packing 8 is fitted into the gap 7 between the upper end of the outer wall material 4 and the eaves ceiling 45. The packing 8 is an inserted outer wall, and the packing 8 is engaged with the main body 8a supported by the upper end 4c of the outer wall material 4 and the upper end outer surface 4a of the outer wall material 4 to prevent excessive insertion of the packing 8 into the indoor side. A locking portion 8b for regulating, a hooking portion 8c which is hooked on the inner surface 4b of the upper end of the outer wall material 4 to prevent the packing 8 from coming off to the outside, and between the two by being elastically pressed against the eaves ceiling 45. Since it has at least two airtight pieces 8e and 8f that define the air layer 9, the packing can be easily inserted and set at an appropriate position. The hook portion 8c is formed as an elastic flexible piece continuous in the longitudinal direction, and the hook portion 8c is elastically deformed upward at the front end of the hook portion 8c by a reaction force that comes into contact with the body edge 30. Since the guide portion 8d is provided, at the position where the body edge 30 exists, the body edge 30 is pressed by the body edge 30 and locally bends upward to avoid interference with the body edge 30, and the body edge 30 does not exist. In the position, the hook 8c is engaged with the upper end inner surface 4b of the outer wall material 4 and is hooked. Therefore, even in a building having a torso, the packing can be easily inserted and set at an appropriate position and securely mounted. Can be.
[0025]
That is, when the packing 8 is inserted to an appropriate position, the outdoor side locking portion 8e is locked to the upper end outer surface 4a of the outer wall material 4, so that further insertion cannot be performed, and excessive insertion of the packing 8 is prevented. It can be reliably prevented. Further, although the engaging portion 8b does not engage with the upper end inner surface 4b of the outer wall material 4 at the position where the trunk edge 30 is present, but does not engage with the upper end inner surface 4b of the outer wall material 4 at the position where the trunk edge 30 does not exist. Even when the pulling force to the outdoor side acts due to a difference or the like, there is no fear that the packing 8 easily comes off. In addition, a guide portion 8d is provided at the front end of the retaining portion 8c for retaining, and since the retaining portion 8c itself has elasticity, resistance at the time of insertion can be reduced. The packing 8 can be easily inserted into the gap 7.
[0026]
A contact point B between the outdoor airtight piece 8e and the eaves ceiling 45 of the indoor airtight piece 8f and a contact C with the eaves ceiling 45 of the indoor airtight piece 8f are drawn from the upper end outer surface corner A of the outer wall material 4 to the eaves ceiling 45. Since the packing 8 is located on the outdoor side and the indoor side with Ls interposed therebetween, once the packing 8 is inserted, the packing 8 can be stably held at a fixed position with good balance.
[0027]
Further, since the tip side surfaces of the two airtight pieces 8e and 8f are in close contact with the lower surface of the eaves ceiling 45, watertightness and airtightness of the joint are maintained, and an air layer is provided between the airtight pieces 8e and 8f. Since 9 is secured, the wind pressure on the outdoor side can be gradually reduced toward the indoor side, and the airtightness and watertightness can be further improved. Further, since the conventional wet joint method is not used, all the problems can be solved, and the cost can be reduced.
[0028]
As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the above embodiments, and various design changes and the like can be made without departing from the gist of the present invention. is there. For example, in the above-described embodiment, the present invention is applied to the case where the eaves ceiling 45 is horizontal, but the present invention can also be applied to the case where the eaves ceiling 45 has a slope as shown in FIG. In that case, Ls and Lt are separate lines.
[0029]
Moreover, in the said embodiment, although the case where the trunk | drum 30 exists in the whole height direction of the wall part 3 and the outer wall material 4 is attached via the trunk | drum 30 was demonstrated, the trunk | drum 30 The present invention can be applied to the case where the outer wall material 4 is attached only near the upper end, and the outer wall material 4 is attached below the upper end while securing the ventilation layer using the attachment metal fitting.
[0030]
【The invention's effect】
In summary, according to the present invention, there is provided an outer wall in which an outer wall material is attached to a wall portion of a building frame through a rim, and packing is inserted into a gap between an upper end portion of the outer wall material and an eave ceiling. A main body portion inserted into the gap from the outdoor side and supported by the upper end of the outer wall material, and a main body portion projecting downward from the outdoor end portion of the main body portion to be locked to an upper end outer surface of the outer wall material. A stop portion, and at least two outdoor and indoor airtight pieces that project upward from the upper surface of the main body with an interval in the insertion direction and each of the distal ends presses against the lower surface of the eave ceiling. A hook portion protruding downward at the indoor end of the main body portion and hooking on the inner surface of the upper end of the outer wall material, wherein the hook portion has a hook portion with a reaction force abutting on the body edge. Since the guide part that elastically deforms upward is provided, if there is a body edge at the mounting height of the packing, But, packing can be reliably attach the to avoid interference with the furring strip, it is possible to improve the workability.
[Brief description of the drawings]
FIG. 1 is an enlarged cross-sectional view showing a configuration of a main part of an outer wall according to an embodiment of the present invention, in which (a) is a cross-sectional view at a position where a trunk edge does not exist, and (a) is a cross-sectional view at a position where a trunk edge exists. It is sectional drawing.
FIG. 2 is a perspective view showing a relationship between a trunk edge and packing in the embodiment.
FIG. 3 is a plan view of the same part as in FIG. 2 as viewed from above.
FIG. 4 is a perspective view showing a manner of attaching a body edge.
FIG. 5 is an enlarged sectional view of a main part showing an example in which the present invention is applied to a building having an eaves ceiling with a slope.
FIG. 6 is an enlarged sectional view for explaining a conventional wet joint method.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 outer wall 2 frame 3 wall portion 4 outer wall material 7 gap 8 packing 8a main body portion 8b locking portion 8c hooking portion 8d guide portions 8e, 8f airtight piece portion 23 ventilation layer 30 body edge 45 eave ceiling

Claims (1)

An external wall material is attached to a wall of a building frame via a body edge, and packing is inserted into a gap between an upper end portion of the external wall material and an eaves ceiling. A main body that is inserted and supported at the upper end of the outer wall material, a locking portion that protrudes downward from an outdoor end of the main body and is locked to an upper end outer surface of the outer wall material; At least two outdoor-side and indoor-side hermetic strips projecting upward from the upper surface at intervals in the insertion direction so that each tip side is in press contact with the lower surface of the eaves ceiling, and the indoor-side end of the main body A hook portion protruding downward to the portion and hooking on the inner surface of the upper end of the outer wall material, and the hook portion has a guide portion for elastically deforming the hook portion upward by a reaction force abutting the body edge. An outer wall, which is provided.

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