Joint structure of decorative member and outer panel

Abstract

To provide a joint structure of a decorative member and an outer plate for improving the appearance of the outer plate fastened by a screw.SOLUTION: The decoration member 10 is formed with a recessed side 10a gradually recessed from an outer edge part to a central part, and has a flat hemispherical shape. A joint structure of an outer plate includes a screw 30 that fastens a first outer plate 21 and a second outer plate 22 that are overlapped with each other, a sealing agent 51 that is applied to the first outer plate 21 covering a head 30b of the screw 30, and a decoration member 10, the head 30b and the sealing agent 51 are accommodated in a recess 10a and covered with the decoration member 10, and the decoration member 10 is bonded to an outer plate 20 by the sealing agent 51.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a joining structure for a decorative member and an outer panel. [Background technology]

[0002] Conventionally, roofing material mounting structures have been disclosed, such as those shown in Patent Document 1. In addition to the roofing material mounting structure shown in Patent Document 1, there is also a joint structure for connecting exterior panels in which corrosion-resistant exterior panels, such as galvalume steel sheets, are stacked together and fastened together with steel screws. In this joint structure for connecting exterior panels, a flat, annular gasket is sometimes attached between the head of the steel screw and the exterior panel to improve waterproofing. However, as this gasket wears over time, a gap forms between the gasket and the head of the steel screw, reducing waterproofing. Therefore, there is a method for improving waterproofing between the steel screw and the exterior panel by applying a sealant, such as silicone, to the head instead of a gasket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-12909 Summary of the Invention [Problem to be solved by the invention]

[0004] However, this method has the problem that the sealant is exposed, which makes the exterior panel look unattractive.

[0005] An object of the present invention is to provide a decorative member and a joining structure for outer panels that improve the appearance of outer panels fastened with screws. [Means for solving the problem]

[0006] In order to achieve the above object, the decorative member according to the invention described in claim 1 is It is characterized by the formation of a recess (10a) that is gradually recessed from the outer edge to the center. This allows the appearance of the outer panels fastened with screws to be improved by storing the sealant in the recess and covering the unsightly sealant with the decorative member. Also, by covering the sealant with the decorative member, the screws are also covered with the decorative member, further improving the waterproofing of the joints of the outer panels.

[0007] The invention described in claim 2 is the invention described in claim 1, It is characterized by its flattened hemispherical shape.

[0008] This further improves the appearance of the outer panel fastened with screws, because the decorative member has a flattened hemispherical shape and is free of sharp edges, giving the appearance that the outer panel and the decorative member are integrated.

[0009] The invention described in claim 3 is the invention described in claim 1 or claim 2, It is characterized by being made of metal.

[0010] This makes it possible to suppress deterioration of the decorative member due to heat and ultraviolet rays, and ultimately to suppress damage to the decorative member, compared to a configuration in which the decorative member is made of resin.

[0011] The invention described in claim 4 is a joining structure of outer plates for joining a first outer plate and a second outer plate partly overlapping a lower part of the first outer plate, a screw (30) comprising a cylindrical shank (30a) having a thread and a head (30b) formed at the base end of the shank, the head side of which is disposed above the first outer shell plate and fastens the first outer shell plate and the second outer shell plate together at the overlapping portions; a sealant (51) applied to the first outer panel so as to cover the head; a decorative member (10) having a recess (10a) formed therein that is gradually recessed from the outer edge to the center, The head and the sealant are housed in the recess and covered with the decorative member, and the decorative member is bonded to the first outer panel by the sealant.

[0012] This provides an outer panel joining structure that improves the appearance of the first outer panel fastened with screws by accommodating the sealant in the recess and covering the unsightly sealant with the decorative member. Also, because the sealant is covered with the decorative member, the waterproofness of the joint where the first and second outer panels are joined with screws is further improved.

[0013] The invention described in claim 5 is the invention described in claim 4, A conical tip portion (30c) is formed at the tip of the shaft portion, The tip portion is characterized in that a cutting edge portion (30c1) is recessed and formed at an acute angle with the surface of the tip portion.

[0014] This allows holes to be drilled in the first and second outer panels with the cutting edge without having to pre-drill pilot holes in the first and second outer panels, and screws can be screwed into the first and second outer panels, eliminating the need to drill pilot holes in the first and second outer panels.

[0015] The invention described in claim 6 is the invention described in claim 5, The decorative member, the first outer panel, and the second outer panel are characterized in that a corrosion-resistant layer of the same color is formed on the surfaces thereof.

[0016] This makes the decorative member less noticeable compared to the first and second outer panels, and makes it appear as if the decorative member is integrated with the first and second outer panels, improving the aesthetic appearance of the joined structure of the outer panels.

[0017] Note that the symbols in parentheses for each means described in this column and in the claims are merely examples showing the correspondence with the specific means described in the embodiments described below, and do not affect the scope of rights of the claims. [Brief explanation of the drawings]

[0018] [Figure 1] (A) is a top view of the decorative member, (B) is a front view of the decorative member, and (C) is a cross-sectional view taken along the line AA of (A). [Figure 2] FIG. 2 is a cross-sectional view of the joint structure of the outer panels. [Figure 3] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] (Structure of decorative components) The structure of a decorative member 10 according to one embodiment of the present invention will be described below with reference to FIG. 1. The decorative member 10 is formed by plastically deforming a metal plate, such as a circular steel plate, using a die and a punch, and has a flattened hemispherical shape. The decorative member 10 has a recess 10a that gradually recesses from the outer edge toward the center. In other words, the outer edge of the decorative member 10 has a circular shape. A corrosion-resistant layer for preventing corrosion is formed on at least the upper surface of the decorative member 10. The corrosion-resistant layer is paint or plating. In this embodiment, the decorative member 10 is a galvalume steel plate having an aluminum, zinc, and silicon alloy layer formed on its surface. The decorative member 10 is made of the same material as the first outer plate 21 and the second outer plate 22 described below, and a corrosion-resistant layer of the same composition and color is formed on the outer surfaces of these plates. For this reason, the decorative member 10, the first outer panel 21, and the second outer panel 22 have the same color and texture, and as will be described later, even if the decorative member 10 is placed on the first outer panel 21 or the second outer panel 22, the decorative member 10 does not stand out against the first outer panel 21 or the second outer panel 22.

[0020] (Outer panel joint structure) An outer panel joining structure 100 according to one embodiment of the present invention will be described below with reference to Figures 2 and 3. As shown in Figures 2 and 3, the outer panel joining structure 100 according to this embodiment is a structure for joining a first outer panel 21 and a second outer panel 22 whose ends overlap. The first outer panel 21 and the second outer panel 22 are members that form the roof or the exterior wall of a building.

[0021] The first outer plate 21 and the second outer plate 22 are made of metal plates such as iron plates, and have corrosion-resistant layers formed on both sides thereof to prevent corrosion. The corrosion-resistant layers are paint or plating. In this embodiment, the first outer plate 21 and the second outer plate 22 are galvalume steel plates having an alloy layer of aluminum, zinc, and silicon formed on their surfaces. If the first outer plate 21 and the second outer plate 22 are made of stainless steel, no corrosion-resistant layer is required on their surfaces. The thickness of the first outer plate 21 and the second outer plate 22 is 0.5 to 2 mm.

[0022] 2, the end of the second outer panel 22 is positioned below and overlapped with the end of the first outer panel 21. The first outer panel 21 and the second outer panel 22, with their overlapping ends, are fastened together by a screw 30. The screw 30 is composed of a cylindrical shank 30a having a screw thread on its outer circumferential surface, and a substantially disk-shaped head 30b concentrically connected to the base end of the shank 30a.

[0023] In this embodiment, a conical tip portion 30c is formed at the tip of the shank 30a, and a blade portion 30c1 for drilling holes in the first outer panel 21 or the second outer panel 22 is recessed into the surface of this tip portion 30c. The angle between the surface of the tip portion 30c and the recessed blade portion 30c1 is an acute angle. The blade portion 30c1 is formed on the surface of the tip portion 30c along the same direction as the axial direction of the shank 30a or along a direction tilted from the axial direction. In other words, in this embodiment, the screw 30 is a tapping screw (also called a steel plate screw or a drill screw). Therefore, the screw 30 can be screwed into the overlapping first outer panel 21 and second outer panel 22 without drilling pilot holes in the first outer panel 21 or second outer panel 22.

[0024] A sealant 51 is applied to the upper surface of the first outer panel 21 so as to cover the head 30b of the screw 30. This prevents water from entering between the head 30b of the screw 30 and the upper surface of the first outer panel 21, and between the shank 30a and the first outer panel 21. The sealant 51 is made of silicone or the like, and is liquid immediately after application, but hardens after a certain time has passed after application. The sealant 51 remains flexible and elastic even after hardening.

[0025] The decorative member 10 is attached so as to cover the head 30b of the screw 30 and the sealant 51. The recess 10a of the decorative member 10 accommodates the head 30b of the screw 30 and the sealant 51.

[0026] (Method of joining outer panels) A method for joining the outer panels will be described below. First, the first outer panel 21 is placed on top of the second outer panel 22, and the ends of the first outer panel 21 and the second outer panel 22 are overlapped. Next, screws 30 are screwed into the overlapping portions of the first outer panel 21 and the second outer panel 22. As described above, in this embodiment, the screws 30 are self-tapping screws, so there is no need to drill pilot holes in the first outer panel 21 or the second outer panel 22. Next, a sealant 51 is applied to the upper surface of the first outer panel 21 so as to cover the heads 30b of the screws 30. Before the sealant 51 hardens, the decorative member 10 is placed over the heads 30b of the screws 30 and the sealant 51 so as to cover them. Once the sealant 51 hardens, the decorative member 10 is adhered to the upper surface of the first outer panel 21 by the sealant 51.

[0027] In Figure 3, A is the state before the sealant 51 is applied to the upper surface of the first outer panel 21, B is the state after the sealant 51 has been applied to the upper surface of the first outer panel 21, and C is the state after the decorative member 10 has been attached to the upper surface of the first outer panel 21.

[0028] (Effects of this embodiment) The effects of this embodiment will be described below. The decorative member 10 has a recess 10a formed therein that is gradually recessed from the outer edge to the center.

[0029] This allows the recess 10a to contain the sealant 51 and the decorative member 10 to cover the unsightly sealant 51, thereby improving the appearance of the first outer panel 21 fastened with the screws 30. Furthermore, by covering the sealant 51 with the decorative member 10, the screws 30 are also covered with the decorative member 10, further improving the waterproofness of the joint between the first outer panel 21 and the second outer panel 22.

[0030] The decorative member 10 has a flattened hemispherical shape.

[0031] This further improves the appearance of the first outer panel 21 fastened with the screws 30. That is, since the decorative member 10 has a flattened hemispherical shape, there are no sharp edges, and the first outer panel 21 and the decorative member 10 look as if they are integrated.

[0032] The decorative member 10 is made of metal.

[0033] This makes it possible to suppress deterioration of the decorative member 10 due to heat and ultraviolet rays, and ultimately to suppress damage to the decorative member 10, compared to a configuration in which the decorative member 10 is made of resin.

[0034] The joining structure 100 for joining a first outer panel 21 and a second outer panel 22, a portion of which is overlapped below the first outer panel 21, includes a screw 30 consisting of a cylindrical shank 30a with a thread and a head 30b formed at the base end of the shank 30a, with the head 30b side positioned above the first outer panel 21, for fastening the overlapping portions of the first outer panel 21 and the second outer panel 22 together, a sealant 51 applied to the first outer panel 21 so as to cover the head 30b, and a decorative member 10 formed with a recess 10a that is gradually recessed from the outer edge to the center. The head 30b and sealant 51 are contained in the recess 10a and covered by the decorative member 10, and the decorative member 10 is adhered to the first outer panel 21 by the sealant 51.

[0035] This makes it possible to provide an outer panel joining structure 100 that can improve the appearance of the first outer panel 21 fastened with the screws 30 by storing the sealant 51 in the recess 10a and covering the unsightly sealant 51 with the decorative member 10. In addition, because the sealant 51 is covered with the decorative member 10, the waterproofness of the joint where the first outer panel 21 and the second outer panel 22 are joined with the screws 30 is further improved.

[0036] A conical tip portion 30c is formed at the tip of the shaft portion 30a, and a cutting edge portion 30c1 is recessed into the tip portion 30c, forming an acute angle with the surface of the tip portion 30c.

[0037] This allows the cutting edge 30c1 to drill holes in the first outer panel 21 and the second outer panel 22 without pre-drilling pilot holes in the first outer panel 21 and the second outer panel 22, and the screws 30 can be screwed into the first outer panel 21 and the second outer panel 22, thereby eliminating the need to drill pilot holes in the first outer panel 21 and the second outer panel 22.

[0038] Furthermore, on the surfaces of the decorative member 10, the first outer panel 21, and the second outer panel 22, a corrosion-resistant layer of the same color is formed.

[0039] This makes the decorative member 10 inconspicuous relative to the first outer panel 21 and the second outer panel 22, and makes it appear as if the decorative member 10 is integrated with the first outer panel 21 and the second outer panel 22, improving the aesthetic appearance of the outer panel joint structure 100.

[0040] (Other embodiments) The present invention has been described above in relation to the embodiment that is considered to be the most practical and preferable at this time, but the present invention is not limited to the embodiment disclosed in the specification of this application, and can be modified as appropriate within the scope of the claims and the gist or idea of ​​the invention that can be read from the specification as a whole, and it must be understood that the decorative member 10 and outer panel joining structure 100 that includes such modifications are also included within the technical scope of the patent right.

[0041] In the embodiment described above, the decorative member 10 has a flattened hemispherical shape, but the decorative member 10 may have a recess 10a that is gradually recessed from the outer edge to the center, and the decorative member 10 may have a polygonal outer edge, or may have a conical or pyramidal shape.

[0042] In the embodiment described above, the decorative member 10 is made of metal, but the decorative member 10 may be made of resin, rubber, ceramic, wood, or other materials.

[0043] In the embodiment described above, the first outer panel 21 and the second outer panel 22 are made of metal, but it goes without saying that the present invention can also be applied to first outer panels 21 and second outer panels 22 made of resin or the like. [Explanation of symbols]

[0044] 10 Decorative materials 10a Recess 21 First outer panel 22 Second outer panel 30 screws 30a Shaft 30b head 30c tip 30c1 Blade 51 Sealant 100 Outer panel joint structure

Claims

1. A decorative member characterized in that a recess (10a) is formed that is gradually recessed from the outer edge to the center.

2. 2. The decorative member according to claim 1, which has a flattened hemispherical shape.

3. 3. The decorative member according to claim 1, wherein the decorative member is made of metal.

4. A joining structure of outer plates that joins a first outer plate and a second outer plate that is partially overlapped below the first outer plate, a screw (30) comprising a shaft portion (30a) having a thread and a head portion (30b) formed at a base end of the shaft portion, the head portion being disposed above the first outer shell plate to fasten the first outer shell plate and the second outer shell plate together at the overlapping portions; a sealant (51) applied to the first outer panel so as to cover the head; a decorative member (10) having a recess (10a) formed therein that is gradually recessed from the outer edge to the center, An outer panel joining structure characterized in that the head and the sealant are contained in the recess and covered with the decorative member, and the decorative member is adhered to the first outer panel by the sealant.

5. A conical tip portion (30c) is formed at the tip of the shaft portion, 5. The joining structure of outer panels according to claim 4, wherein the tip end portion is formed with a recessed cutting edge portion (30c1) that forms an acute angle with the surface of the tip end portion.

6. 5. The joining structure of outer panels according to claim 4, wherein a corrosion-resistant layer of the same color is formed on the surfaces of the decorative member, the first outer panel, and the second outer panel.

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