Cover for building frame material

Abstract

To improve adhesion with building frame materials and prevent covers for building frame materials from peeling off.SOLUTION: Covers 1A, 1B are formed from a thin plate 2 whose surface is covered with a decorative sheet 3, and a groove for bending is provided on a back surface of the thin plate 2. The decorative sheet 3 and the thin plate 2 are made of polyvinyl chloride.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a cover for building frame materials, such as window frames and door frames, for covering such frame materials to give them a beautiful finish. [Background technology]

[0002] One example of a cover for building frame materials such as window frames and door frames is a window frame for renovation, which is made from a thin plate with a decorative sheet on the surface and has a U-shaped cross section formed by bending it at a V-groove on the back of the thin plate (see Patent Document 1).The base material of the thin plate for this window frame for renovation is a wood flour composite resin board made by kneading and extruding a mixture of, for example, 37% polypropylene, 3% maleic acid-modified polypropylene, 10% wood flour, and 50% mica. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-127067 Summary of the Invention [Problem to be solved by the invention]

[0004] The thin panels of the window frame for renovation described in Patent Document 1 are formed from wood flour composite resin boards, which has the problem of poor adhesion to building frame materials (e.g., wooden frames or medium-density fiberboard (MDF) frames) and making them prone to peeling off.

[0005] Therefore, an object of the present invention is to provide a cover for a building frame material that can improve adhesion to the building frame material and prevent the cover from peeling off from the building frame material. [Means for solving the problem]

[0006] The building frame cover of the present invention is a cover for building frame materials that covers frame materials installed in a building, and is formed from a flat thin plate whose surface is covered with a decorative sheet, and a folding groove is provided on the back of the thin plate, and the decorative sheet and the thin plate are made of polyvinyl chloride (hereinafter referred to as ``vinyl chloride'').

[0007] According to this, the thin boards are made of vinyl chloride, which improves adhesion to wooden frames and medium-density fiberboard (MDF) frames. This makes the cover less likely to peel off from the building frame material. Furthermore, the decorative sheet and thin boards are made of vinyl chloride, which allows the use of decorative vinyl chloride sheets, which are commonly used as decorative flooring materials. Furthermore, the decorative sheet and thin boards can be easily cut with a utility knife, facilitating cutting to adjust size. Furthermore, whitening and cracking are less likely to occur when bent, and thermal expansion and thermal contraction, which can cause installation defects, can also be suppressed.

[0008] In the present invention, the grooves are preferably V-cut grooves with flat ends, which makes it difficult for the decorative sheet on the surface to stretch at the folded portions, making it possible to suppress whitening. [Effects of the Invention]

[0009] The cover for the building frame material of the present invention makes it difficult for the cover to peel off from the building frame material. Furthermore, since the decorative sheet and thin plate are made of vinyl chloride, it is possible to use decorative vinyl chloride sheets, which are commonly used as decorative flooring materials. Furthermore, the cover can be easily cut with a utility knife, facilitating cutting to adjust the size. Furthermore, the cover is less likely to whiten or crack when bent, and thermal expansion and contraction, which can cause installation defects, can be suppressed. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of a building frame material and a cover according to one embodiment of the present invention, illustrating the attachment of the cover to the building frame material. FIG. [Figure 2]FIG. 2(a) is a side view showing the cover in a flat state before being attached to a building frame material, and FIG. 2(b) is a side view showing the cover in a state where it has been folded at the first and second grooves. [Figure 3] 2 is a perspective view showing the building frame material shown in FIG. 1 in a remodeled state with a cover attached thereto. FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] A preferred embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, covers 1A and 1B for a building frame material according to this embodiment are intended to cover, for example, a window frame 100 as a building frame material. In this embodiment, a case will be described in which covers 1A and 1B are used to cover a window frame 100 as an example of a building frame material. Note that the building frame material of the present invention is not limited to a window frame 100, and may be any frame material used in buildings.

[0012] The window frame 100 is installed in a hole formed in a wall. The window frame 100 is made of a wooden frame or a medium-density fiberboard (MDF) frame. The window frame 100 is installed so as to open in a horizontal inward / outward direction A, but may also be installed in a hole formed in a ceiling, floor, or the like and be installed so as to open in a vertical direction B. The window frame 100 is a rectangular frame body and has a pair of horizontal frame portions 101 spaced apart from each other above and below, and a pair of vertical frame portions 102 spaced apart from each other in a horizontal left-right direction C perpendicular to the inward / outward direction A. Note that while FIG. 1 only shows the horizontal frame portion 101 located at the bottom and the vertical frame portion 102 located on the left, the horizontal frame portion 101 is located at the top and the vertical frame portion 102 is located on the right, and these end portions are connected to form a single window frame 100.

[0013] As shown in FIG. 1 , the horizontal frame portion 101 and the vertical frame portion 102 are both made of flat plates. The vertical frame portion 102 is slightly wider than the horizontal frame portion 101 in the inward / outward direction A and is positioned to protrude inward. A sash 103 is positioned at the outer end of the inner surface 101a of the horizontal frame portion 101 and the outer end of the inner surface 102a of the vertical frame portion 102. In this embodiment, the sash 103 is made of an aluminum alloy, but this is not particularly limited. The sash 103 is a rectangular frame-shaped member and has an L-shaped cross section. The sash 103 may also be a flat plate with a rectangular cross section. A window 104 is installed inside the area surrounded by the sash 103.

[0014] Cover 1A can be folded from the state shown in Fig. 2(a) to the state shown in Fig. 2(b) when attached to window frame 100. Cover 1B has the same configuration as cover 1A, and therefore a detailed description thereof will be omitted.

[0015] The cover 1A has a rectangular planar shape extending longitudinally in a direction perpendicular to the page surface of FIG. 2(a). As shown in FIG. 2(a), the cover 1A includes a thin plate 2 and a decorative sheet 3. The thin plate 2 and decorative sheet 3 are made of vinyl chloride. The decorative sheet 3 is attached to the surface 2a of the thin plate 2 so as to cover the entire surface 2a. In other words, the cover 1A is composed of a thin plate 2 whose surface is covered with the vinyl chloride decorative sheet 3. In this embodiment, the decorative sheet 3 has a thickness of approximately 0.1 mm, but this is not particularly limited. In this embodiment, the thin plate 2 has a thickness of approximately 1.4 mm, but this is not particularly limited. As a result, the thickness of the decorative sheet 3 is smaller than the thickness of the thin plate 2. In this embodiment, the thickness of the cover 1A is approximately 1.5 mm, but this is not particularly limited and the thickness can be adjusted as appropriate.

[0016] The back surface 2b of the thin plate 2 is formed with a first groove 2c and a second groove 2d for folding the cover 1A. These first groove 2c and second groove 2d extend along the longitudinal direction D of the cover 1A (i.e., the direction perpendicular to the page surface in FIG. 2(a)). The first groove 2c and second groove 2d are arranged in a lateral direction E perpendicular to the longitudinal direction D, at a first predetermined distance (a distance equal to or greater than the thickness of each of the horizontal frame portion 101 and the vertical frame portion 102) between the center and one end of the cover 1A (the right end in FIG. 2(a)). The second groove 2d is arranged between the center of the cover 1A and the first groove 2c in the lateral direction E. The first groove 2c is arranged in the lateral direction E, at a second predetermined distance (a distance equal to or greater than the distance by which the window frame 100 protrudes inward from the wall) from the right end of the cover 1A. The first predetermined distance and the second predetermined distance may be the same or different.

[0017] The first groove 2c and the second groove 2d are so-called V-cut grooves, but the second groove 2d is formed so that when the cover 1A is folded 90° at the second groove 2d, the corners on the surface side are chamfered as shown in Figure 2(b). On the other hand, the first groove 2c is a 90° V-cut groove with a flat surface 2c1 at its tip. This makes it difficult for the decorative sheet 3 on the surface of the cover 1A to stretch at the folded portion when the cover 1A is folded 90° at the first groove 2c, making it possible to suppress whitening.

[0018] A method for renovating a building frame material by attaching such covers 1A, 1B to a window frame 100 to renovate the building frame material will be described below. In this method, the user first cuts out the covers 1A, 1B to a predetermined size from the strip-shaped sheet material that makes up the covers 1A, 1B using a utility knife or similar tool, as shown in FIG. 2. The strip-shaped sheet material that makes up the covers 1A, 1B is very thin and made of vinyl chloride, so it can be easily cut by the user. At this time, the rectangular portion 1B1 of the cover 1B that interferes with the horizontal frame portion 101 is cut out, as shown in FIG. 1.

[0019] Next, to attach the cover 1A to the horizontal frame portion (first portion) 101 of the window frame 100, first, a quick-drying adhesive is applied to the first groove 2c of the cover 1A, and the surfaces 2c2 and 2c3 defining the first groove 2c are fixed together with the adhesive, as shown in FIG. 2(b). Then, as shown in FIG. 3, the cover 1A is folded along the second groove 2d to cover the horizontal frame portion 101. The cover 1A is then abutted against the horizontal frame portion 101 and attached to the surface (including the inner surface 101a) of the horizontal frame portion 101 with the adhesive (first step). At this time, a gap 110 is provided between the outer edge of the cover 1A and the sash 103, allowing for placement of a sash joint material 30 (described below). Furthermore, as shown in FIG. 1, a predetermined gap 120 is provided between the end of the cover 1A and the vertical frame portion 102 in the left-right direction C. The adhesive may be applied in advance to at least one of the back surface 2b of the cover 1A and the surface of the horizontal frame portion 101. In addition to the adhesive, double-sided adhesive tape may be placed between the cover 1A and the horizontal frame portion 101. This may prevent the cover 1A from shifting in position relative to the horizontal frame portion 101 until the adhesive hardens. In addition, a modified silicone resin adhesive is used as the adhesive in this embodiment, but a urethane resin adhesive, for example, may also be used.

[0020] Next, the cover 1B is attached to the vertical frame portion (second portion) 102 of the window frame 100 in the same manner as when attaching the cover 1A to the horizontal frame portion 101. Specifically, first, a quick-drying adhesive is applied to the first groove 2c of the cover 1B, and the surfaces 2c2 and 2c3 defining the first groove 2c are fixed together with the adhesive, as shown in FIG. 2(b). Then, as shown in FIG. 3, the cover 1B is folded along the second groove 2d to cover the vertical frame portion 102. The cover 1B is then abutted against the vertical frame portion 102 and attached to the surface (including the inner surface 102a) of the vertical frame portion 102 with the adhesive (second step). At this time, a gap 111 is provided between the outer edge of the cover 1B and the sash 103, allowing for placement of a sash joint material 30 (described later). Furthermore, as shown in FIG. 1, a predetermined gap 121 is provided between the end of the cover 1B and the horizontal frame portion 101 in the left-right direction C. The adhesive used is similar to that used to bond the cover 1A to the horizontal frame portion 101, and may be applied in advance to at least one of the back surface 2b of the cover 1B and the surface of the vertical frame portion 102. In addition to the adhesive, double-sided adhesive tape may be placed between the cover 1B and the vertical frame portion 101. This may prevent the cover 1B from shifting in position relative to the vertical frame portion 102 until the adhesive hardens.

[0021] Next, as shown in Fig. 3, the mounting portion 41 of the corner member 40 serving as a joint material is fitted into a joint 122 (see Fig. 1) formed by two gaps 120, 121 between the covers 1A and 1B, and the corner body 42 of the corner member 40 covers the joint 122 (third step). At this time, adhesive may be filled into the joint 122. At this time, the tip of the long portion 45 (described later) of the corner member 40 is brought into contact with the sash 103.

[0022] The corner member 40 will now be described with reference to FIGS. 3 to 5. The corner member 40 has a long portion 45 extending in the inward-outward direction A and a short portion 46 extending downward in the up-down direction B from the inner end of the long portion 45. As shown in FIG. 4, the long portion 45 of the corner member 40 has a corner body 42 having a substantially L-shaped cross section and an attachment portion 41 formed to protrude from a corner of the corner body 42. A curved surface 42a is formed on the portion of the corner body 42 opposite the attachment portion 41. The short portion 46 has a cross-sectional shape similar to that of the long portion 45. As shown in FIG. 5, only the corner body 42 is formed at the corner connecting the long portion 45 and the short portion 46, and the attachment portion 41 is not formed therein.

[0023] As shown in FIG. 5 , the corner member 40 is formed by cutting a U-shaped member 50 extending in a U-shape to a predetermined length. In this embodiment, the U-shaped member 50 has a long portion 51 extending in one direction and two short portions 52 extending from each end of the long portion 51 in a direction perpendicular to the long portion 51. The cross-sectional shapes of the long portion 51 and the short portion 52 are similar to those of the long portion 45 and the short portion 46 described above. The length of the long portion 51 in one direction is at least twice the length of the long portion 45 in the inward / outward direction A. The length of the short portion 52 in the perpendicular direction is at least the length of the short portion 46 in the up-down direction B. Two corner members are created by cutting the long portion 51 of the U-shaped member 50 in one direction at the center. The lengths of the long portions and the short portions of these two corner members are then adjusted to appropriate lengths to create the two corner members 40. Since the U-shaped member 50 has a U-shape in this way, two corner members 40 can be easily made from one U-shaped member 50. Note that an L-shaped member may be used instead of the U-shaped member 50, or a U-shaped member from which one corner member 40 can be made may also be used.

[0024] Next, as shown in Fig. 3, the elastic soft portion 31 of the sash joint material 30 is fitted into the gap 110 between the cover 1A and the sash 103, and the gap 110 is covered with the sash joint body 32 of the sash joint material 30. At this time, an adhesive may be filled into the gap 110. Furthermore, the elastic soft portion 31 of the sash joint material 30 is fitted into the gap 111 between the cover 1B and the sash 103, and the gap 111 is covered with the sash joint body 32 of the sash joint material 30. At this time, the gap 111 may be filled with an adhesive.

[0025] The sash joint filler 30 will now be described with reference to FIG. 3. The sash joint filler 30 extends along the gaps 110, 111 into which it is fitted. The sash joint filler 30 has a thin sash joint body 32 and an elastic soft portion 31 formed to protrude from the back surface 32a of the sash joint body 32. The elastic soft portion 31 has a generally U-shaped cross section that opens in the direction of protrusion from the back surface 32a. The elastic soft portion 31 is disposed at the end of the sash joint body 32 on the sash 103 side. The sash joint body 32 has a width in the inside-outside direction A that is greater than the width of the gaps 110, 111. Therefore, when the elastic soft portion 31 is fitted into the gap 110, the end opposite the sash 103 can cover the end of the covers 1A, 1B on the sash 103 side.

[0026] In this way, as shown in FIG. 3, the covers 1A, 1B, the corner member 40, and the sash joint material 30 are attached to the window frame 100 as a building frame material, and the renovation of the window frame 100 is completed.

[0027] As described above, by using vinyl chloride for the thin plates 2 of the covers 1A and 1B, adhesiveness is improved even when the window frame 100 used as a building frame material is made of wood or medium-density fiberboard (MDF). This makes it difficult for the covers 1A and 1B to peel off from the window frame 100. The reason for this improved adhesiveness is that vinyl chloride has a polar molecular structure and is non-crystalline.

[0028] Furthermore, because the decorative sheet 3 and thin plate 2 are made of vinyl chloride, it is possible to use decorative vinyl chloride sheets that are commonly used as decorative flooring materials. Furthermore, the decorative sheet 3 and thin plate 2 can be easily cut with a utility knife, facilitating cutting to adjust size. Furthermore, whitening and cracking are less likely to occur when folded, and thermal expansion and contraction, which can cause installation defects, can also be suppressed.

[0029] Furthermore, in the first step described above, the cover 1A is attached to the horizontal frame portion 101 (building frame material). At this time, since the thin plate 2 is made of vinyl chloride, adhesiveness is improved even if the horizontal frame portion 101 is made of a wooden frame or a medium-density fiberboard (MDF) frame. This makes it difficult for the cover 1A to peel off from the horizontal frame portion 101.

[0030] Furthermore, in the second step described above, the cover 1B is attached to the vertical frame portion 102 (building frame material). At this time, since the thin plate 2 is made of vinyl chloride, adhesiveness is improved even if the vertical frame portion 102 is made of a wooden frame or a medium-density fiberboard (MDF) frame. This makes it difficult for the cover 1B to peel off from the vertical frame portion 102.

[0031] Furthermore, by covering the joint 122 with the corner member 40 in the third step described above, the joint 122 between the adjacent covers 1A, 1B can be beautifully finished.

[0032] While the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and various modifications are possible within the scope of the claims. For example, in the above embodiment, corner members 40 are disposed at joint 122, but sealant may be disposed instead of corner members 40. A known caulking agent for interior construction can be used as the sealant. This also allows the joint between adjacent covers 1A and 1B to be beautifully finished. [Explanation of symbols]

[0033] 1A, 1B Cover (Building frame cover) 2 thin plate 2a surface 2b Back side 2c First groove (Groove: First groove) 2c1 plane 2d Second groove (groove: second groove) 3 Decorative sheets 100 Window frames (building frame materials) 101 Horizontal frame part (first part) 102 Vertical frame section (second section) 122 Joint

Claims

1. A building frame cover for covering a frame installed in a building, characterized in that the cover is formed from a flat thin plate whose surface is covered with a decorative sheet, a folding groove is provided on the back of the thin plate, and the decorative sheet and the thin plate are made of polyvinyl chloride.

2. 2. The cover for a building frame material according to claim 1, wherein the groove is a V-cut groove having a flat end.

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