JP3947779B2 - Plastic exterior wall material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plastic outer wall material used for repairing an outer wall of a building.
[0002]
[Prior art]
FIG. 11 shows an example of a conventional plastic outer wall structure. This plastic outer wall structure 101 has an upper edge portion 104 connected to the upper end and a side edge connected to the concavo-convex portion on the right end side. A portion 103a, a fitting groove 102a provided in the left-side concavo-convex portion 102, and a plurality of receiving portion constituting protrusions 106 protruding from each other along the vicinity of the lower end side of the back surface. The surface is provided with a block-like protruding portion 101a partitioned by a joint wind portion 101b.
[0003]
When the plastic outer wall structure 101 is affixed to a wall surface or the like of a building, the first plastic outer wall structure 101 is positioned and then the elongated hole 107 formed in the upper edge portion 104 is used. Then, the second plastic outer wall structure 101 is disposed above the first plastic outer wall structure 101 and placed in the guide groove 106a of the receiving portion constituting projection 106. After the upper edge portion 104 of the eye plastic outer wall structure 101 is fitted and its tip is brought into contact with the wall surface of the guide groove 106a, the second plastic outer wall structure 101 is nailed or the like. It adheres to the wall surface (see JP-A-7-217059).
[0004]
[Problems to be solved by the invention]
In the above-described conventional technology, when there are uneven portions and uneven portions on the wall surface to which the plastic outer wall structure is to be attached, not only can it not be flexibly dealt with, but also sufficient mechanical strength as the outer wall structure. However, as a result, there is a problem that the weight increases and the handling is inconvenient.
[0005]
The present invention has been made in view of the above-described problems of the prior art, and not only can flexibly cope with wall surfaces and the like where uneven portions and uneven portions exist, but is also lightweight. An object of the present invention is to realize a plastic outer wall material having a hollow double wall structure excellent in heat insulation.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a plastic outer wall material according to the present invention includes a front wall having a block-like raised surface partitioned by a joint wind surface, and a back surface facing the front wall at an interval. A plastic outer wall material having a hollow double-wall structure including a wall and a connecting margin continuously provided on a peripheral portion of the front wall and the back wall, and having a hollow inside, The protrusions having a flat front end surface protruding toward the opposite surface wall are protruded at a distance from each other, and the height of the protrusion is lower than the surface contacting the wall surface of the margin. It is a feature.
[0007]
[0008]
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a plastic outer wall material according to the present invention will be described with reference to the drawings.
[0010]
As shown in FIG. 1 and FIG. 2, the plastic outer wall material P is spaced apart from the front wall 1 having a block-like raised surface 1 a partitioned by a joint wind surface 1 b and the front wall 1. A hollow double-wall structure including a back wall 2 facing the front wall 1 and connecting margins 3 to 6 (described later) connected to the periphery of the back wall 1 and having a hollow inside, On the wall 2, protrusions 7 having a flat front end surface 7 a protruding toward the opposite surface wall are provided so as to be spaced apart from each other. These protrusions 7 are formed in a portion of the back wall 2 facing the raised surface 1a of the front wall 1 in the present embodiment, and the height thereof is higher than the surface contacting the wall surface W of the margins 3-6. Is set too low. However, the present invention is not limited to this, and it can be formed in any part as necessary.
[0011]
In the present embodiment, concave ribs 8 are formed at a distance from each other at a portion of the back wall 2 facing the joint wind surface 1b of the front wall 1. The concave ribs 8 are provided for reinforcement. If the tip 8a is welded to the back surface of the joint wind surface 1b as in the present embodiment, the rigidity of the plastic outer wall material P, etc. The mechanical strength of is increased.
[0012]
A margin (hereinafter referred to as “upper margin”) 3 continuously provided at the upper edge portion is bent into a substantially L shape on the front wall side following the joint wind surface 1b as shown in FIG. The back portion 3a has a recessed portion 3a that is recessed toward the back wall side, the back wall side has a frame-like portion 3b that is bent in a substantially L shape and projects to the opposite surface side following the back wall 2, and the back portion 3a An end wall 3c that closes the distal end portion of the frame-like portion 3b, and a fitting ear portion 3d that is provided on the outer surface of the end wall 3c that is substantially half the backing portion side are provided. The backing portion 3a is provided with mounting concave ribs 9 that are recessed from the front wall side toward the back wall side and whose front ends are welded to the back surface of the frame-like portion 3b. In addition, on the outer surface of the frame-like portion 3b on the opposite surface wall side, a groove portion extending in a direction orthogonal to the longitudinal direction (vertical direction in the figure) at a portion corresponding to the interval portion between the mounting concave ribs 9 3e is formed (see FIG. 2), and an attachment long hole 9a penetrating to the outer surface side of the frame-like portion 3b is formed at the tip of each attachment concave rib 9.
[0013]
A margin (hereinafter referred to as “lower margin”) 4 continuously provided at the lower edge portion has a raised surface 1a on the front wall side and a back wall side as shown in FIG. Next, a frame-like portion 4b which is bent in a substantially L shape following the back wall 2 and protrudes toward the opposite surface wall side, and a step portion 4e which is bent in a substantially L-shape and is recessed toward the front wall side following the frame-like portion 4b. The protrusion 4d is bent in a substantially L shape following the stepped portion 4e and protrudes toward the opposite surface wall side, and the contact portion 4a is bent in a substantially L shape and is recessed toward the front wall side following the protrusion portion 4d. The protruding surface 1a and the tip of the contact portion 4a are closed by the end wall 4c, and the corners of the frame-like portion 4b and the stepped portion 4e are recessed with a substantially U-shaped cross section. The insert 10 having the location 10a is integrally provided so that the opening of the recess 10a faces downward.
[0014]
A margin (hereinafter referred to as “left margin”) 5 that is continuously provided on the left edge when viewed from the front wall side is connected to the back wall side and the back wall 2 as shown in FIG. A frame-shaped portion 5b which is bent in a substantially L shape and protrudes toward the opposite surface wall side, a contact portion 5a which is bent in a substantially L shape and is recessed toward the front wall side following the frame-shaped portion 5b, and a contact portion 5a An end wall 5c that closes the tip is provided. The end wall 5c includes a protruding piece 5d having a raised surface 1a that protrudes outwardly in a tongue-like shape and a front wall side of the end wall 5c. The joint wind surface 1b integrally formed on the surface is alternately provided in a comb shape. And as shown to (a) of FIG. 4, by providing the level | step-difference part 5e in the longitudinal direction approximate center part of the frame-shaped part 5b, and fixing the one end side of the backing plate 11 with fixing means, such as bis | screw 12, A fitting recess of a right margin 6 described later is formed between the other end side projecting outward from the frame-like portion 5b of the backing plate 11 and the contact portion 5a.
[0015]
A margin 6 (hereinafter referred to as “right margin”) connected to the right edge when viewed from the front wall side is connected to the back wall 2 on the back wall side as shown in FIG. It has a frame-like portion 6b that is bent in a substantially L shape and protrudes toward the opposite surface wall, and is bent in a substantially L shape following the folded surface 6e of the raised surface 1a on the front wall side. The back part 6a, the groove part 6d bent substantially in the shape of a letter following the back part 6a, and deeply recessed toward the opposite wall side, and the groove part 6d followed the groove part 6d rising to the front wall side and bent in a staircase shape. A sealing step 6f and a fitting step 6g that is bent in a substantially L shape and protrudes toward the front wall side following the sealing step 6f, and the distal ends of the frame-like portion 6b and the fitting insertion portion 6g It is blocked by the end wall 6c. Then, as shown in FIG. 4 (d), a notch 6h for fitting the above-described left margin backing plate 11 is formed at a substantially central portion in the longitudinal direction of the frame 6b. .
[0016]
Note that the surface of the front wall 1 adjacent to the connecting portion of the right margin 6 corresponds to the protruding pieces 5d and the joint wind surface 1b of the left margin 5 that are alternately connected in a comb shape. The joint wind surface 1b and the raised surface 1a are alternately formed.
[0017]
The function of the plastic outer wall material P according to the present embodiment will be described with reference to an example in which three plastic outer wall materials P _{1 to} P ₃ are connected to each other and attached to the wall surface W as shown in FIG. To do.
[0018]
(1) When affixing the _first plastic outer wall material P ₁ to the wall surface W, first, as shown in FIG. 10, the starter 50 is positioned on the wall surface W and spaced apart from each other in the longitudinal direction of the mounting portion 51. The plurality of mounting long holes 54 that are perforated in this manner are used to fix to the wall surface W by fixing means such as nailing with the nail 30.
[0019]
Here, as shown in FIG. 9, the starter 50 is connected to the engagement portion 53 bent in a substantially L shape continuously provided at the upper end of the plate-like attachment portion 51 and the lower end portion of the attachment portion 51 in the vicinity of the lower end portion. The belt-shaped thick part 51a provided with the provided bowl-shaped draining part 52 is provided in the attachment part 51, and a plurality of attachment long holes 54 are perforated at intervals.
[0020]
(2) After the above (1), the first plastic outer wall material P ₁ is disposed above the starter 50, and the engaging portion of the starter 50 is inserted into the recess 10 a of the insert 10 provided in the lower margin 4. 53, and the contact portion 4a is brought into contact with the draining portion 52 for positioning, and then the wall 3 is fixed to the wall surface W by a fixing means such as nail driving with the nail 30 using the mounting long hole 9a of the upper margin 3. It adheres (see FIG. 6).
[0021]
At this time, the frame-like portion 3b of the upper margin 3 contacts the wall surface W, but an air flow path is formed between the frame-like portion 3b and the wall surface W by the groove portion 3e formed in the frame-like portion 3b.
[0022]
(3) After (2), the sealing member 40 is placed on the sealing step 6f of the margin 6 on the right side of the _first plastic outer wall material P1 (see FIG. 8), and then the second sheet The plastic outer wall material P ₂ is arranged on the right side of the _first plastic outer wall material P _{1 in} the drawing, and the starter 50 is engaged with the recess 10 a of the insert 10 in the lower margin 4 in the same manner as in the above (2). After the portion 53 is engaged, it is slid toward the _first plastic outer wall material P ₁ to make the second plastic product on the upper surface of the right margin 6 of the _first plastic outer wall material P ₁ . The left margin 5 of the outer wall material P ₂ is overlapped and, as shown in FIG. 8, the second plastic is formed on the outer surface of the end wall 6c of the right margin 6 of the _first plastic outer wall material P ₁ . left between the outer wall material P ₂ After positioning is brought into contact with the outer surface of the frame-shaped portion 5b of the gin 5, a second sheet of plastic siding P ₂ of sticking to the wall surface W by fixing means nailing etc. in the same manner as in the above (2).
[0023]
(4) After the above (3), the third plastic outer wall material P ₃ is disposed above the _first plastic outer wall material P ₁ and, as shown in FIG. Is overlapped on the upper surface side of the upper margin 3 of the _first plastic outer wall material P ₁ and is slid downward, so that the first plastic outer wall material P is inserted into the recess 10 a of the insert 10. ₁ , the fitting ear 3 d of the upper margin 3 is fitted, and the contact portion 4 a and the protruding portion 4 d of the lower margin 4 of the _third plastic outer wall material P ₃ are each made of the first plastic. After positioning is brought into contact with the upper surface of the joint air surface 1b and a backing portion 3a of the upper margin 3 of the outer wall material P _1, similarly nailing the above (2) a plastic siding P ₃ of the third sheet Wall by fixing means such as Sticking to the W.
[0024]
In fixing the _{first to third} plastic outer wall materials P _{1 to} P ₃ to the wall surface W in the steps according to (2), (3) and (4) above, uneven portions and unevenness existing on the wall surface W in advance. An appropriate protrusion 7 is selected corresponding to the portion, and a spacer 20 made of resin or rubber having elasticity (flexibility) is attached in advance to the flat tip surface 7a of the selected protrusion 7, By providing a portion that abuts against the wall surface W via the spacer 20, the plastic outer wall materials P _{1 to} P ₃ can be attached to the wall surface W without looseness and while maintaining high flatness. .
[0025]
In addition, as shown in FIG. 7, when a portion such as a nail by the nail 30 is additionally provided using the concave rib 8 provided on the back wall side and fixed to the wall surface W, each plastic is made more firmly. The outer wall materials P _{1 to} P ₃ can be pasted.
[0026]
In the present invention, a plurality of protrusions 7 having a flat front end surface 7a protruding toward the opposite surface wall are provided on the back wall 2 so as to protrude from each other, and the height of the protrusions is a surface that abuts against the wall surface of the margin. more another reason for low, when pasted plastic siding P to the wall surface or the like of a building, to form between gap S between the wall surface, dew condensation by air flows through the inter-gap S This is to prevent this.
[0027]
Therefore, it is desirable that the protrusions 7 be distributed over the entire back wall 2. The cross-sectional shape of the protrusions 7 is not limited to a circular one, square, oval, Ru can be any shape such as a polygon.
[0028]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0029]
Protrusions having a flat front end surface are provided on the back wall so as to be spaced apart from each other, and the height of the protrusions is lower than the surface contacting the wall surface of the margin. For this reason, the flatness is maintained by interposing a spacer between the tip surface of the protrusion selected corresponding to the uneven portion or the uneven portion present on the wall surface of the building and the wall surface, etc. In addition, it can be pasted so as not to rattle. In addition, when pasted plastic siding on a wall surface or the like of a building, while gap between the front end surface of the wall and the protrusion been formed, the air through the inter-gap prevents condensation by circulating Can do.
[0030]
Moreover, since it is a hollow double-wall structure with a hollow inside, it is lightweight and excellent in heat insulation.
[Brief description of the drawings]
1A and 1B show a plastic outer wall material according to an embodiment, in which FIG. 1A is a schematic front view, FIG. 1B is a schematic partial sectional view taken along line AA in FIG. 1A, and FIG. It is a typical fragmentary sectional view which follows the BB line.
FIG. 2 is a schematic rear view of the plastic outer wall material shown in FIG.
3 is a schematic partial cross-sectional view taken along the line CC in FIG. 2. FIG.
4A shows a margin portion of the plastic outer wall material shown in FIG. 2. FIG. 4A is a schematic partial sectional view taken along the line DD, FIG. 4B is a schematic partial sectional view taken along the line EE, c) is a schematic partial sectional view taken along the line FF, and (d) is a schematic partial sectional view taken along the line GG.
5 is an explanatory view showing a state in which three plastic outer wall materials shown in FIG. 1 are connected. FIG.
6 is a schematic partial sectional view taken along line AA in FIG.
7 is a schematic partial cross-sectional view taken along line BB in FIG. 5. FIG.
8 is a schematic partial cross-sectional view taken along line CC in FIG.
FIG. 9 is a partial perspective view showing an example of a starter.
10 is an explanatory view showing a use state of the starter shown in FIG. 9. FIG.
FIGS. 11A and 11B show an example of a conventional plastic outer wall material. FIG. 11A is a schematic rear view, FIG. 11B is an enlarged partial cross-sectional view showing a portion of a receiving portion constituting protrusion, and FIG. It is an enlarged partial rear view which shows a part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front wall 1a Raised surface 1b Joint wind surface 2 Back wall 3, 4, 5, 6 Margin 3a, 6a Backing part 3b, 4b, 5b, 6b Frame-shaped part 3c, 4c, 5c, 6c End wall 4a, 5a Contact part 4d Protruding part 4e Step part 5d Protruding piece 6d Groove part 6e Folding surface 6f Sealing step part 6g Insertion part 7 Protrusion 7a Tip surface 8 Concave rib 9 Concave rib 9a, 54 Continuation long hole 10 Insert 10a Recess 11 Backing plate 12 Screw 20 Spacer 30 Nail 40 Seal member 50 Starter 51 Mounting part 52 Draining part 53 Engagement part

Claims (1)

A front wall having a block-like raised surface partitioned by a joint wind surface, a back wall opposed to the front wall with a space therebetween, and a peripheral wall of the front wall and the back wall. A plastic outer wall material having a hollow double-wall structure with a hollow inside,
On the back wall, protrusions having a flat front end surface protruding toward the surface opposite to the front wall are provided so as to be spaced apart from each other .
A plastic outer wall material , wherein a height of the protrusion is lower than a surface contacting the wall surface of the margin .

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