JP7334755B2 - External wall panel fasteners and external wall structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to fasteners for attaching and fixing an exterior wall panel to a building skeleton and an exterior wall structure of a building using the fasteners.

In the past, when the present applicants and others constructed a new building, the truss in the arrow section was manufactured at a factory and transported to the construction site for installation. Within a single truss, the openings of the lip channel steel, which is the framework of the truss, are oriented in the same direction. The method of attaching the arrow plate was adopted. Sometimes it was not necessary to specify the orientation of the aperture.

In recent years, we have entered a period in which newly built houses at the time are subject to renovation. The use of exterior wall panels with abundant fire resistance and improved fire resistance is increasing.

Fasteners that utilize existing bundles of building blocks to attach exterior wall panels have been invented and published in the patent literature to date. For example, Patent Literature 1 discloses a fastener for attaching an exterior wall panel that is attached to a lip channel steel as a frame. The joining means attaches the fastener to the lip channel steel by pinching the lip piece of the opening of the lip channel steel with a part of the fastener, and the concave groove in the side end of the outer wall panel is one of the fasteners. The invention is disclosed by attaching the exterior wall panels to the fasteners by pinching them at the parts.

Similarly, Patent Document 2, Patent Document 3, and Patent Document 4 also disclose fasteners for attaching exterior wall panels that are fixed to lip channel steel. Installed exterior panels. For example, in the invention of Patent Document 2, a fastener is attached to the lip channel steel by holding the back of the lip channel steel with a part of the fastener, and the concave groove on the side edge of the outer wall panel is a part of the fastener. The outer wall panel is joined by attaching the outer wall panel to the fastener by holding it between the fasteners. In addition, the invention of Patent Document 3 attaches a fastener to a lip channel steel by fitting a part of the fastener to a part of a center post made of two lip channel steels, and attaches to the side end of an outer wall panel. The joining means is to attach the outer wall panel to the fastener by pinching the recessed groove with a part of the fastener. Further, the invention of Patent Document 4 discloses that the abutment plate of the stopper is improved so that one presser plate can be used for two presser plates instead of the two presser plates normally provided.

JP-A-15-313976 JP-A-05-321368 JP-A-05-321369 JP-A-57-108347

Attaching fasteners for attaching exterior wall panels to the existing bundle of the frame such as the lip channel steel provided in the arrow section described above, and attaching the exterior wall panel to the fasteners. The configuration of the fasteners differs depending on the direction of the opening of the lip channel steel for attaching the external wall panel, that is, whether it faces the outside or the inside. Therefore, it is necessary to manufacture two types of fasteners according to the direction of the lip channel steel and bring both to the renovation site. Similarly, when the arrow cutting section is reformed, the outer wall panel attached to the sharp-angled portion, which is the horizontal end of the arrow cutting section, does not have an existing bundle of the frame at that point. There is also a problem that only one side can be fixed.

The present invention has been made in view of the above circumstances, and the means thereof is a fastener for an outer wall panel to a lip channel steel as a building frame, which is a base connecting portion of a rectangular flat plate. A first panel mounting portion and a second panel mounting portion formed by bending both ends of the above at right angles in the same direction, and the first panel mounting portion side of the upper connecting portion projecting from above the substantially central portion of the base connecting portion a frame mounting portion formed by bending a portion protruding from the side at right angles in the same direction as the first panel mounting portion, and the first panel mounting portion and the second panel mounting portion have two outer walls. A screw hole is formed in which a locking screw of a pressing plate that presses the end of the panel is inserted, and a fixing bolt hole through which a fixing bolt to be fixed to the building frame is inserted is formed in the frame attachment portion. It is because it was used as a fastener for an outer wall panel.

In addition, the outer wall panel fastener has the same length from the reference surface to the tip of the base connecting portion of the first panel mounting portion, the second panel mounting portion, and the frame mounting portion. .

Furthermore, in an exterior wall structure in which an exterior wall panel is attached to a lip channel steel as a building frame using the fasteners of the exterior wall panel, the frame mounting portion is outside the lip piece of the opening of the lip channel steel. The lip channel steel and fasteners are fixed by applying the back plate to the inner side, sandwiching the lip piece from the front and back, and fixing it with a fixing bolt inserted into the fixing bolt hole, so that the two adjacent outer wall panels An exterior wall structure in which the exterior wall panel is attached and fixed to the lip channel steel as the frame of the building by fixing the recesses formed in the side ends respectively to the first panel mounting portion or the second panel mounting portion with a retainer plate. That is what I said.

In addition, the outer wall structure is such that the upper end of the outer wall panel is fixed to the outdoor end of the purlin provided on the oblique side of the arrow cut portion of the building by using a mounting bracket.

Further, the mounting bracket includes a mounting portion having a substantially U-shaped cross section, which includes a bottom plate and clamping pieces on both sides of the bottom plate, and a mounting plate fixed in a direction perpendicular to the clamping pieces on the back surface of the bottom plate of the mounting portion. And, the outer wall structure is made up of a retaining plate for locking the upper end of the outer wall panel attached to the portion of the mounting plate protruding from the bottom plate.

According to the exterior wall panel fastener of the present invention, one and the same fastener can be used regardless of the orientation of the lip channel steel, i. It is no longer necessary to create metal fittings and bring two types of fasteners to the renovation site, thereby reducing manufacturing costs and improving work efficiency. In addition, the manufacturing of this fastener is also simple because it can be done only by stamping and bending a steel plate. If the length of each member is the same, the storage space for the fasteners is reduced.

According to the outer wall structure using this fastener, it is not necessary to prepare two kinds of fasteners in advance, so that preparation work and transportation work can be made more efficient. Furthermore, even where there is no lip channel steel at the end of the arrow cut portion, the exterior wall panel can be easily supported by attaching a mounting bracket to the outdoor end of the purlin.

Overall perspective view of fasteners for fixing exterior wall panels to lip channel steel Front view of the fastener shown in Fig. 1 with the holding plate and bracket attached A plan view of the retainer plate and bracket body attached to the fastener in Fig. 1 Side view of the fastener shown in Fig. 1 with the holding plate and bracket attached Partial cross-sectional perspective illustration of the joint state between the outer wall panel and the front (opening) side of the lip channel steel with fasteners Partial cross-sectional perspective explanatory view of the joint state between the outer wall panel and the back side (back plate) side of the lip channel steel with fasteners Overall perspective explanatory view of the mounting bracket of the outer wall panel to the purlin Front view of the mounting bracket in Figure 7 Top view of the mounting bracket in FIG. Side view of the mounting bracket in Figure 7 Partial cross-sectional perspective explanatory view of joining the outer wall panel and the purlin using the mounting bracket Front view with the outer wall panel attached to the arrow section Partially exploded explanatory view of FIG. Exploded explanatory view of another embodiment in which the outer wall panel is attached to the arrow section

An embodiment of the invention will be described with reference to the drawings. As shown in FIG. 1, a fastener 1 according to an embodiment of the present invention comprises a first panel mounting portion 3 and a second panel mounting portion 3 formed by bending both ends of a rectangular flat plate connecting portion 2 at right angles in the same direction. 4 and the protruding part of the upper connecting part 5 protruding from above the substantially central part of the base connecting part 2 from the side of the first panel mounting part 3 side is arranged in the same direction as the first panel mounting part 3 It has a body portion 7 provided with a frame mounting portion 6 formed by bending at right angles.

A mounting screw hole 8, a bracket bolt hole 9, and a mounting screw hole 10 are drilled in the first panel mounting portion 3 and the second panel mounting portion 4 in this order from the top in the figure. Furthermore, a fixing bolt hole 12 for fixing the main body 7 to the building frame is formed in the central portion of the frame attachment portion 6 . The plate thickness and shape of each member are not particularly limited as long as the required strength can be maintained.

When the base connecting portion 2 of the first panel mounting portion 3, the second panel mounting portion 4, and the frame mounting portion 6 is used as a reference plane, the projection length from the reference plane appears in the plan view in FIG. As shown in the figure, the lengths to the ends thereof are substantially the same, but there is no particular limitation as long as the supporting strength is maintained. However, if the horizontal length is the same, there is an advantage that the molding process is easy and the storage space is reduced.

FIGS. 2 to 4 show that when the body portion 7 is used to connect the lip channel steel 13 and the outer wall panel 14, the work efficiency can be improved by attaching the necessary members to the respective holes in advance. It is what I did. A fixing bolt 15 is inserted into the fixing bolt hole 12 of the frame attachment portion 6 from the side of the front surface 6a facing the first panel attachment portion 3, and the screw portion protruding toward the back surface 6b is a screw hole in the middle of the back plate 16. and loosely screwed together. A bracket bolt 18 is inserted into one of the bracket bolt holes 9 opened in the middle of the first panel mounting portion 3 and the second panel mounting portion 4, and the bracket body 17 is attached to the first panel mounting portion 3 and the second panel mounting portion 4. It is fixed by sandwiching it between the surface of the panel mounting portion 4 and a nut screwed into the bracket bolt 18 . Abutment plates 22 for stopping the rotation of the pressing plate 19 are provided on both sides of the bracket body 17 in the longitudinal direction. A retainer plate 19 is attached to the bracket body 17 via an auxiliary spring 20 in the two mounting screw holes 8 and 10 formed above and below the bracket bolt hole 9 of the first panel mounting portion 3 and the second panel mounting portion 4, respectively. Presser plate screws 21 for mounting to the first panel mounting portion 3 and the second panel mounting portion 4 are inserted through the holes, and are tightened and fixed by nuts on the opposite side. As a result, the presser plate 19 can be freely rotated and fixed by loosening or tightening the presser plate screw 21, but the contact plate 22 limits the rotation angle so that it does not come off. Moreover, even when tightened by the auxiliary spring 20, a certain degree of elasticity is provided. The tip side of the pressing plate 19 is bent toward the first panel mounting portion 3 and the second panel mounting portion 4 to facilitate pressing. The bracket bolt 18 and the presser plate screw 21 are provided in the first panel mounting portion 3 and the second panel mounting portion 4, respectively. omission. (For example, mounting screw hole 8 in FIG. 3)

Next, the procedure for attaching and fixing the exterior wall panel 14 to the lip channel steel 13, which is the framework constituting the truss of the arrow section A of the building shown in FIG. . Here, the mounting and fixing of the end side of the triangular outer wall panel 141 installed at the end of the truss is omitted because it will be described later. First, the case where the opening 13b formed between the two lip pieces 13a of the lip channel steel 13 faces the outside of the building will be described with reference to FIG.

First, the fastener 1 is brought to an appropriate height position of one lip channel steel 13 in which the opening 13b of the lip channel steel 13 constituting the truss of the arrow section A faces the outside of the building. The rear surface 6b side of the mounting portion 6 is brought into contact with the outside of the lip piece 13a. Then, after the back plate 16 inserted from the opening 13b is brought into contact with the inner surface of the two lip pieces 13a through the opening 13b, the fixing bolt 15 is inserted into the fixing bolt hole 12 from the surface 6a side of the frame attachment portion 6. It is screwed into the internal thread formed on the back plate 16 and fixed by tightening. A nut may be tightened and fixed to the projecting portion from the back plate 16 .

Next, a recess 14a is formed inside the side edge of the outer wall panel 14 in the gap between the surface of the bracket body 17 and the presser plate 19 formed by loosening the two presser plate screws 21 of the first panel mounting portion 3. , or once rotate the holding plate 19 out of the bracket body 17 and place the rib 14b thereon, then rotate the holding plate 19 back and fix it by tightening the holding plate screw 21. make sure to At this time, the contact plate 22 prevents excessive rotation. In addition, the auxiliary spring 20 serves as a cushioning material when the pressing plate screw 21 is excessively tightened, and also serves to reduce the impact of external factors on the outer wall panel 14 after installation. In this manner, one side of each of the two adjacent outer wall panels 14 is fixed to the first panel mounting portion 3 by each pressing plate 19 . By installing a plurality of fasteners 1 at intervals in the height direction according to the length of the lip channel steel 13, the outer wall panel 14 can be stably attached. When this opening 13b faces outward, the second panel mounting portion 4 is not used.

Next, the case where the opening 13b of the lip channel steel 13 faces the inside of the building will be described in comparison with the case where the opening 13b faces the outside with reference to FIG.

In this case, the fastener 1 is brought to an appropriate height position of one lip channel steel 13 in which the opening 13 of the lip channel steel 13 constituting the truss faces toward the inside of the building, and is attached to the frame. The rear surface 6b side of the portion 6 is brought into contact with the outside of the lip piece 13a. Then, after the back plate 16 inserted from the opening 13b is brought into contact with the inner surfaces of the two lip pieces 13a, the fixing bolts 15 are inserted into the fixing bolt holes 12 from the back surface 6a side of the frame attachment portion 6 to form the back plate 16. screw it into the female thread that holds it and tighten it. A nut may be tightened and fixed to the projecting portion from the back plate 16 . As can be seen from FIG. 6, when this opening 13b faces inward, the direction of the fastener 1 is only reversed compared to the case in which the opening 13b faces outward. The ribs 14b of the recesses 14a at the side ends of the two outer wall panels 14 adjacent to the second panel mounting portion 4, with the portion 3 positioned on the inside and the second panel mounting portion 4 positioned on the outside. It is fixed to this second panel mounting portion 4 by a pressing plate 19 . Since the second panel mounting portion 4 and the first panel mounting portion 3 have the same structure, the fixing method is also the same as in the case where the opening 13b faces outward, and the description thereof will be omitted.

Even if the orientations of the plurality of lip channel steels 13 constituting the truss of the same arrow section A of one building are different from each other, the openings 13b of the lip channel steels 13 are shown by imaginary lines in FIG. Since the position of the back plate 13c on the opposite side is based on the same reference line X from the mounting structure of the arrow section A to the truss, even if the fastener 1 is used in reverse, this reference line X The distance from the outer wall panel 14 to the first panel mounting portion 3 or the second panel mounting portion 4 to which the outer wall panel 14 is fixed is always the same. Therefore, regardless of the direction of the opening 13b of the lip channel steel 13, the outer wall surface of the outer wall panel 14 attached to this fastener 1 is reflected as a uniform flat outer wall surface when viewed from the outside.

As is clear from the above description, this fastener 1 changes its direction regardless of whether the opening 13b of the lip channel steel 13 constituting the truss of the arrow section A is directed outward or inward. It has the advantage that it can be used in both cases alone.

The mounting and fixing of the end portion of the triangular outer wall panel 141 installed at the end portion of the truss is as shown in the mounting diagram of FIG. 11 using the mounting metal fittings 23 shown in FIGS. As shown in FIG. 11, the mounting bracket 23 comprises a bottom plate 25a for mounting and fixing to the outdoor end of a roof purlin 24 extending in a direction orthogonal to the rafters of the arrow cut portion A, and clamping pieces 25b on both sides of the bottom plate 25a. A mounting portion 25 having a substantially U-shaped cross section, a mounting plate 26 fixed on the back surface of a bottom plate 25a of the mounting portion 25 in a direction orthogonal to the holding piece 25b, and one holding piece 25b of the mounting plate 26. A presser plate 19 is fixed with a presser plate screw 21 to the portion protruding from the side. A threaded hole 25c for fixing to the purlin 24 is provided in the bottom plate 25a and the clamping piece 25b.

As shown in FIG. 11, the mounting bracket 23 is attached to the outdoor end of the roof purlin 24 at a position perpendicular to the inclined part such as the rafters of the arrow section A of the building. , and a fastener 27 such as a screw is driven through a threaded hole 25c formed in the two clamping pieces 25b and the bottom plate 25a. In this fixed state, the orientation of the mounting plate 26 of the mounting bracket 23 matches the mounting direction of the outer wall panel 14, so that the rib 14b of the concave portion 14a at the upper side end of the outer wall panel 141 is positioned between the pressing plate 19 and the mounting plate 26. The mounting is completed by clamping and fixing the holding plate screws 21 after inserting them. Since the upper side edge of the outer wall panel 14 is inclined along the inclination of the arrow section A, it is desirable that the mounting plate 26 also correspond to this inclination. In this way, even at the end of the arrow cut portion A where there is no lip channel steel 13, it can be fixed by using the mounting bracket 23 of the purlin 24. FIG.

FIG. 12 is an external view of the exterior wall panels 14 and 141 installed at the arrow section A of the building, and FIG. is shown. As shown in FIG. 14, when the vertical height of the arrow section A is large, an embodiment in which the outer wall panels 14 are installed in two stages in the vertical direction is shown. In some cases, the triangular outer wall panel 141 at the end is increased, but if the mounting bracket 23 described above is used, construction can be performed in the same manner.

If the fastener 1 of the present invention is used, it can be used regardless of the direction of the opening of the lip channel steel. For this reason, it can be effectively used for renovation of the building, the user's economic burden is reduced, and there is an advantage that it can be used for other consumption.

1 Fastener 2 Base connecting part 3 First panel mounting part 4 Second panel mounting part 5 Upper connecting part 6 Frame mounting part 6a Front surface 6b Back surface 7 Body part 8 Mounting screw hole 9 Bracket bolt hole 10 Mounting screw hole 12 Fixing bolt Hole 13 Lip channel steel 13a Lip piece 13b Opening 13c Back plate 14 Exterior wall panel 14a Recess 14b Rib 15 Fixing bolt 16 Back plate 17 Bracket body 18 Bracket bolt 19 Holding plate 20 Auxiliary spring 21 Holding plate screw 22 Contact plate 23 Mounting bracket 24 Purlin 25 Mounting portion 25a Bottom plate 25b Clamping piece 25c Screw hole 26 Mounting plate A Arrow cut portion

Claims (5)

The first and second panel attachment parts are formed by bending both ends of the rectangular plate base connecting part at a right angle in the same direction as a fastener for the outer wall panel to the lip channel steel as the frame of the building. and a projecting portion from the side of the first panel mounting portion side of the upper connecting portion projecting from above the substantially central portion of the base connecting portion is bent at a right angle in the same direction as the first panel mounting portion. and a frame mounting portion, wherein the first panel mounting portion and the second panel mounting portion are formed with threaded holes into which locking screws of a pressing plate that presses the ends of the two outer wall panels are inserted. and a fixing bolt hole through which a fixing bolt to be fixed to the building frame is inserted is formed in the frame mounting portion. 2. The outer wall panel according to claim 1, wherein lengths from the reference surface of the base connecting portion of the first panel mounting portion, the second panel mounting portion, and the frame mounting portion to the tip thereof are the same. Fastener. An exterior wall structure in which an exterior wall panel is attached to a lip channel steel as a frame of a building by using the exterior wall panel fastener according to claim 1 or claim 2, the exterior wall structure of the lip piece of the opening of the lip channel steel. The lip channel steel and the fastener are fixed by placing the frame mounting portion on the inside and the back plate on the inside, sandwiching the lip piece from the front and back and fixing it with the fixing bolt inserted into the fixing bolt hole. By fixing the recesses formed in the side ends of the two exterior wall panels respectively to the first panel mounting portion or the second panel mounting portion with a retainer plate, the exterior wall panels are attached to the lip channel steel as the frame of the building. An exterior wall structure characterized by being fixed by mounting. 4. The exterior wall structure according to claim 3, wherein the upper end portion of the exterior wall panel is fixed to the outdoor end portion of the purlin provided on the oblique side of the arrow cut portion of the building using a mounting bracket. The mounting bracket includes a bottom plate, a mounting portion having a substantially U-shaped cross section and comprising clamping pieces on both sides of the bottom plate; 5. The outer wall structure according to claim 4, further comprising a retainer plate that engages the upper end of the outer wall panel attached to the portion of the mounting plate protruding from the bottom plate.

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