JP7627112B2 - starter - Google Patents

Description

The present invention relates to a starter used when constructing sandwich panels.

Sandwich panels, which consist of two metal steel sheets sandwiching a core of insulating material, are often used as exterior materials for reinforced concrete and steel buildings, and many have been invented, devised and brought to the market. Furthermore, there are many construction methods that realize ease of construction and high aesthetic appeal.

JP 2006-083652 A JP 2007-303150 A

Generally, construction of the base involves marking out the foundation, setting up the drip-proofing material, attaching backboards to vertical joints and protruding and recessed corners, as well as installing the starter and constructing the main body. Starters are generally installed using top fastening, with a fixing surface provided on the upper side of the mounting surface so that the screw heads are completely hidden by the subsequent construction of the main body. However, in cited document 1, a horizontal furring strip with a width greater than or equal to the starter's fixing surface and the length of the fastening hardware is required, while in cited document 2 the positions at which the fastening hardware can be installed are limited, and in both cases the freedom in the starter's installation position is limited. For this reason, in some cases, construction using bottom fastening, with a fixing surface provided on the underside of the mounting surface, is used.

This bottom fastening method is effective when the steel section that will form the furring strip is small (for example, a 100 mm x 50 mm C-shaped steel beam) or when no gap is required between the bottom end of the sandwich panel body and the water drain. However, as the starter cannot be hidden by the sandwich panel body as with top fastening, it detracts from the aesthetic look. Also, when top fastening and bottom fastening must be used depending on the building or construction site, the starter must be manufactured by on-site processing or specialized parts must be stocked, leaving room for improvement in terms of workability and economy.

The present invention provides a starter that is characterized by a roughly L-shaped configuration that includes a mounting surface on which a sandwich panel can be placed, and an indoor end of the mounting surface that is bent roughly vertically, and is composed of a protrusion, a fixing surface, a convex portion, an inclined portion, and an end portion, and that can be fixed to a base material such as a furring strip via the fixing surface with a fastener such as a screw.

In addition, when the product of the present invention is used in an upper fastening manner in which the fixing surface 4 is disposed above the mounting surface 2 as shown in FIG. 7, even if the end of the sandwich panel happens to get caught on the end of the starter 1 when installing the sandwich panel, the inclined portion 6 allows the sandwich panel to be smoothly guided to the mounting surface 2 without deforming the back surface of the panel.

Furthermore, in the present invention, when used with bottom mounting, in which the fixing surface 4 is placed below the mounting surface 2 as shown in Figure 6, the end 7 is installed by abutting it against the indoor end of the slope 42 of the drain 41. This not only reduces the marking process when installing the starter 1, but also makes the fixing part 4a at about the same height from the ground as the covering part 38 when the sandwich panel 20 is installed vertically, so that even with bottom mounting, the starter 1 is not visible from the outdoors, resulting in a pleasing appearance.

As described above, the present invention allows a single component to be used for both top and bottom fastenings, improving workability by eliminating some of the marking steps, and achieving a pleasing appearance without compromising aesthetics.

1A and 1B are a side view and a perspective view of a starter according to the present invention; 1A and 1B are a side view and a perspective view of a conventional example of a starter according to the present invention. FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2 is an enlarged horizontal cross-sectional view of a sandwich panel according to the present invention installed vertically. FIG. 2 is an enlarged vertical side view of a sandwich panel according to the present invention installed vertically. FIG. 11 is a construction diagram when the starter according to the present invention is used for bottom fixing. FIG. 1 is a construction diagram when the starter according to the present invention is used for top fastening. This is an installation diagram when used for top fastening at the top of the opening of the starter according to the present invention.

The following is a detailed description of an embodiment of the starter and its mounting structure according to the present invention, using the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated descriptions are omitted. Figure 1(a) is a side view of the starter according to the present invention, and Figure 1(b) is a perspective view of the starter according to the present invention. Figure 2(a) is a side view of a conventional starter, and Figure 2(b) is a perspective view of a conventional starter. Figure 3 is a perspective view of an embodiment of the sandwich panel used in the present invention when installed vertically. Figure 4 is a horizontal cross-sectional view of the sandwich panel used in the present invention when installed vertically. Figure 5 is a vertical side view of the sandwich panel used in the present invention when installed vertically. Figure 6 is a construction diagram showing an embodiment of the starter according to the present invention when installed at the bottom fastening, and Figure 7 is a construction diagram showing an embodiment of the starter according to the present invention when installed at the top fastening. Figure 8 is a construction diagram showing an embodiment of the starter according to the present invention when installed at the top of an opening.

Figure 2 shows a conventional starter 11, which is made up of a mounting surface 12 that is roughly horizontal and a fixing surface 13 that hangs down from the indoor end of the mounting surface 12, and has a roughly L-shaped cross section. In addition, the fixing surface 13 is provided with a fixing portion 13a that serves as a guide when driving in the screws.

Figure 3 shows an example of a sandwich panel 20 installed vertically. The axes shown in the figure indicate the directions of each figure. The X-axis indicates the outdoor side (Xi) - indoor side (Xii), the Y-axis indicates Yi (roof side) - Yii (foundation side), and the Z-axis indicates the horizontal direction, and the axes shown in the other figures also indicate the same directions.

The conventional starter 11 shown in FIG. 2 is a starter that can only be used for bottom fastening. If the starter 11 is installed for top fastening, a fastener or the like is hammered into the fixing portion 13a and fixed to the furring strip 45, and the head of the fastener protrudes from the fixing surface 13. As a result, when the sandwich panel 20 is placed on the mounting surface 12, the contact surface between the sandwich panel 20 and the mounting surface 12 becomes narrow, and there is a risk that the sandwich panel 20 will fall and the starter will not be able to perform its original function. In addition, the end portion 14 provided adjacent to the fixing surface 13 has a flat shape. Therefore, if the sandwich panel 20 is caught on this end portion 14 during installation, there is a risk that the sandwich panel 20 will be deformed.

As shown in Figure 1, the starter 1 according to the present invention has a cross-sectional shape that is approximately L-shaped. In more detail, the mounting surface 2 of the starter 1 is set approximately horizontally, and the indoor end is bent approximately vertically to provide a protrusion 3 and a fixing surface 4. Furthermore, the end of the fixing surface opposite the protrusion 3 is provided with a convex portion 5, beyond which is provided an inclined portion 6 and an end portion 7. The fixing surface 4 is formed with a fixing portion 4a that serves as a guide when fixing with a fixing device such as a screw.

The starter 1 is preferably formed by aluminum molding, but may also be formed by extrusion molding, roll molding, etc. from metals (e.g., iron, copper, stainless steel, titanium, aluminum-zinc alloy plated steel sheet, etc.) or synthetic resins (e.g., polyvinyl chloride resin, polycarbonate resin, etc.).

The protrusions 3 are provided to increase the strength of the starter 1 and prevent deformation when the sandwich panel 20 is placed on the mounting surface 2.

The inclined portion 6 is inclined from the indoor side toward the outdoor side toward the mounting surface 2. As a result, even if the end of the sandwich panel 20 comes into contact with the inclined portion 6 when the sandwich panel 20 is installed on the mounting surface 2, the back surface 22 is not peeled off and the sandwich panel 20 can be smoothly guided to the mounting surface 2. Furthermore, the convex portion 5 adjacent to the outdoor end of the inclined portion 6 protrudes to a height approximately equal to that of the protruding portion 3. This prevents interference between the fixing device 44 for attaching the starter 1 to the furring strip 45 and the sandwich panel 20, minimizing unevenness of the sandwich panel 20.

4 and 5 show an embodiment of a sandwich panel 20 to be constructed using the starter according to the present invention. The decorative surface 21 and back surface 22 of the sandwich panel 20 are made of steel plates (e.g., iron, copper, stainless steel, titanium, aluminum-zinc alloy plated steel plates, galvanized steel plates, enameled steel plates, clad steel plates, laminated steel plates (PVC steel plates, etc.), sandwich steel plates (vibration-damping steel plates, etc.), synthetic resin steel plate materials, such as polyvinyl chloride resin and polycarbonate resin (including, of course, steel plates toned and painted in various colors)), and are formed into various shapes by roll forming, press forming, etc. The core material 23 filled between them is made of a synthetic resin foam such as polyurethane foam, polyisocyanurate foam, polyvinyl chloride foam, polyethylene foam, and urea foam. For example, a solution of resol-type phenol, a hardener, and a foaming agent are mixed, and the mixture is discharged onto the back side of the decorative surface 21 or the back surface 22, and heated to react, foam, and harden. In addition, various flame retardant materials such as lightweight aggregates (perlite particles, glass beads, gypsum slag, talc, silt balloons, aluminum hydroxide, etc.) and fibrous materials (glass wool, rock wool, carbon fiber, graphite, etc.) can be mixed into the core material 23 to improve fire prevention and fire resistance.

Figure 4 is a cross-sectional view of the sandwich panel 20 cut horizontally (Z-axis) during construction. As shown in Figure 4, the female part 24 is provided with a cover part 26, a fitting recess 27, an abutment edge 28, a fitting recess 29, a connecting protrusion 30, and a packing 31.

The gasket 31 in the receiving recess 27 is formed to improve fire resistance, waterproofing, airtightness, etc. The gasket 31 is typically made of commercially available materials such as polyvinyl chloride, chloroprene, chlorosulfonated polyethylene, ethylene propylene, asphalt-containing polyurethane, EPM, or EPDM.

As shown in FIG. 4, the male part 25 has a step 32, a fixing screw recess 33, an insertion protrusion 34, an abutment edge 35, and an insertion protrusion 36.

Figure 5 is a vertical (Y-axis) side view of sandwich panel 20 when installed vertically. At the Y-axis end of sandwich panel 20, covering portion 37 and covering portion 38 are provided, and core material 23 is not exposed.

Figures 6, 7, and 8 show examples of installation using the starter 1. Figure 6 shows an example of "bottom-fastening" installation where the fixing surface 4 is located below the mounting surface 2, while Figures 7 and 8 show examples of "top-fastening" installation where the fixing surface 4 is located above the mounting surface 2.

The general construction order for the starter is to mark out, attach the gutter 41, mark out again for the starter, and then install the starter 1 and sandwich panel 20 in that order. When construction is performed with bottom fastening as shown in Figure 6, this construction method can be used when the furring strip 45 (for example, steel beams used in steel frame structures such as C-shaped steel, H-shaped steel, I-shaped steel, and steel pipes) is thin in the Y-axis direction or when no gap is required between the slope 42 of the gutter 41 and the covering part 38.

When using the starter 1 for bottom mounting, the end 7 of the starter 1 can be abutted against the part consisting of the fixing surface 43 and the slope 42 of the drain 41 for installation. At this time, the fixing part 4a and the covering part 38 are located at approximately the same height in the Y-axis direction, so the fixing device 44 is not visible from the outside and does not spoil the appearance. Therefore, there is no longer a need to mark out the starter, which was previously necessary after installing the drain 41, improving workability.

On the other hand, top-fastening as shown in Figures 7 and 8 is used when the size of the furring strip 45 can be sufficiently secured, when bottom-fastening is difficult, or when sealing is required between the slope 42 and the covering portion 38. Top-fastening allows the fasteners 44 to be hidden by the sandwich panel 20, improving the freedom of designing the gap between the slope 42 of the drip edge 41 and the covering portion 38.

The above disclosure is merely one embodiment, and the protrusion 3 may be omitted as long as the sandwich panel 20 can be sufficiently supported. Also, the groove and the inclined portion 6 such as the fixing portion 4a may be omitted.

1 Starter 2 Placement surface 3 Protrusion 4 Fixation surface 4a Fixation portion 5 Convex portion 6 Inclined portion 7 End 11 Starter 12 Placement surface 13 Fixation surface 13a Fixation portion 14 End 20 Sandwich panel 21 Decorative surface 22 Back surface 23 Core material 24 Female portion 25 Male portion 26 Cover portion 27 Fitting recess 28 Abutment portion 29 Fitting recess 30 Connection protrusion 31 Gasket 32 Step 33 Fixing screw recess 34 Fitting protrusion 35 Abutment edge 36 Fitting protrusion 37 Covering portion 38 Covering portion 41 Water cut 42 Inclined surface 43 Fixation surface 44 Fixing tool 45 Furring strip 45a Steel pipe 45b C-shaped steel 46 Mortar 47 Foundation 48 Interior material 49 Vibration stopper 50 Spacer 51 Runner 61 Frame 62 Sash 63 Welding anchor 64 Fitting packing 65 Sealing 66 Drain pipe 67 Backup material

Claims (1)

A starter used when installing sandwich panels, comprising a support surface on which the sandwich panel is placed, a fixing surface formed by bending the indoor end of the support surface approximately vertically, a protrusion provided between the support surface and the fixing surface, and a convex portion, an inclined portion , and an end provided at the end of the fixing surface, the starter having an approximately L-shaped cross-sectional shape that allows for top and bottom fastening .

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