JP2003074166A - Molded plate mounting method and rotation preventing plate for use therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molded plate mounting method which can prevent Z clip rotation caused by loosening of a clamping bolt when a molded plate as an outer wall or the like of a building is mounted on a skeleton of the building via a Z clip, and to provide a rotation preventing plate for use in the method. SOLUTION: According to the method, the rotation preventing plate 7 is fitted to an angle 6 welded to a beam 5, and the Z clip 1 is temporarily fixed to the molded plate 4 by means of a bolt 2 and a nut 3, which molded plate 4 is then erected at a predetermined location, followed by inserting the angle 6 between the molded plate 4 and the Z clip 1. Thereafter, the bolt 2 is completely clamped to fix the molded plate 4, and a pair of rotation blocking pieces 7d formed at the rotation preventing plate 7 are folded inward to be located at both lateral edges of the Z clip 1. After mounting the molded plate, even if vibrations are imposed on the molded plate to loosen the bolt 2, rotation of the Z clip 1 about the bolt 2 is prevented by virtue of the rotation blocking pieces 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a molded plate used for an outer wall of a building or a partition, and a rotation prevention plate used for the method.

[0002]

2. Description of the Related Art ALC boards (lightweight cellular concrete boards),
A molded plate such as an extruded cement plate is used for an outer wall of a building, a partition, or the like. To mount this molded plate, as shown in FIG. 6, a cross section having a mounting hole 1a is generally used as shown in FIG.
A clip metal fitting (hereinafter, referred to as Z clip) 1 formed in a mold, a bolt 2 inserted into the mounting hole 1a thereof, and a nut 3 fitted into the bolt 2 are used. That is,
Taking an extruded cement board as an example, as shown in FIG. 7, a Z clip 1 is formed by forming mounting holes 4a at the upper and lower ends of the molded board 4 (usually at two locations on the left and right sides of the upper end and the lower end). Temporarily fix each with bolts 2 and nuts 3, build the molding plate 4 in a predetermined position of the building frame, and insert the angle 6 fixed to the beam 5 or the like between the Z clip 1 and the molding plate 4, The forming plate 4 is fixed by tightly tightening the bolt 2 to fix it.

In the case of such a molding plate mounting method, when vibration is applied after mounting due to an earthquake or the like, the tightening force of the bolt 2 is loosened, the Z clip 1 rotates around the bolt 2, and it disengages from the angle 6 to form the molding plate. There is a risk that 4 will fall. To avoid this danger, each Z clip 1 is welded to the angle 6 after the forming plate 4 is attached so that the Z clip 1 does not rotate around the bolt 2 even if vibration is applied during an earthquake.

[0004]

However, the above Z
The welding work of the clip 1 is difficult at the construction site, and it is very complicated because there are many of them, which not only causes a decrease in construction efficiency but also causes an increase in cost, and the surface of the Z clip 1 is coated with rust preventive or the like. In the case of welding, the coating film is partially peeled or burnt due to high heat during welding,
There were problems such as smoke and foul odors.

As means for preventing the rotation of the Z clip 1, in addition to welding, for example, two mounting holes 1a for the Z clip 1 may be arranged side by side and tightened and fixed by two bolts 2.
In that case, the number of bolts 2 and nuts 3 is doubled, resulting in a significant decrease in construction efficiency and a rise in cost.
However, there are inconveniences such as having to be large.

The present invention has been made in view of the conventional situation as described above, and the vibration is caused by an earthquake or the like after the installation work without welding the Z clip to the angle and without increasing the number of bolts and nuts. An object of the present invention is to provide a method for mounting a molded plate that prevents the Z clip from rotating around the bolt even when applied, and a rotation prevention plate used for the method.

[0007]

As a means for attaining this object, the present invention provides a method in which a Z clip is temporarily fixed to an end portion of a forming plate with a bolt and a nut, and the Z clip and the forming plate are provided between the Z clip and the forming plate. Insert the angle fixed to the beam of the building frame,
In the forming plate mounting method of fixing the forming plate by completely tightening the bolts, a gist of the forming plate mounting method is characterized in that a rotation preventing plate is attached between the angle and the forming plate. Further, in the rotation preventing plate used in the molding plate mounting method, an elastic piece is formed at one end of the thin plate-shaped main body, and a locking piece is formed at the other end, and the locking piece is formed. Bendable rotation blocking pieces are oppositely arranged on both sides of the Z-clip, and the angle is fitted between the elastic piece and the locking piece, and the rotation blocking pieces are respectively bent to locate at both end portions of the Z clip. The gist of the invention is a rotation prevention plate that prevents the Z clip from rotating around the bolt.

According to the present invention, since the rotation preventing plate is attached between the angle and the forming plate when the forming plate is attached to the angle fixed to the body of the building through the Z clip, the rotation preventing plate is attached after the attaching due to an earthquake or the like. Even if the bolt is loose,
It is possible to prevent the Z clip from rotating around the bolt. The anti-rotation plate is positioned at both ends of the Z clip by fitting an angle between the elastic piece formed on the thin plate-shaped body and the locking piece, and bending the pair of anti-rotation pieces inward. Prevents rotation of the Z clip.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a method for mounting a molded plate according to the present invention and an embodiment of a rotation prevention plate used for the method will be described.
A more detailed description will be given with reference to the accompanying drawings. In this description, the same members as those in the related art will be denoted by the same reference numerals.

The anti-rotation plate 7 according to the present invention shown in FIG.
A main body 7a, which is made of a thin metal plate such as a stainless steel plate, has a predetermined size, and one end of the main body 7a is raised, and an elastic piece 7b is formed by bending the front end of the main body 7a downward. Has a locking piece 7c formed by cutting and raising the center upward and inclining slightly inward, and further has a pair of bendable rotation blocking pieces 7d on both sides of the locking piece 7c. The rotation preventing piece 7d is laterally extended like an arm, and folds 7e for facilitating bending are formed in the vicinity of the base of the rotation blocking piece 7d. It is inclined.

The rotation prevention plate 7 thus constructed is used by being mounted between the angle 6 and the molding plate 4.
FIG. 2 shows a case where the forming plate 4 is vertically stretched, that is, vertically attached to the upper and lower beams 5, and here, the mounting state of the upper end portion of the forming plate 4 is shown.

The I-shaped beam 5 has an angle 6 with an L-shaped cross section.
Are fixed by welding along the longitudinal direction of the beam 5, and the rotation prevention plate 7 is fitted to the angle 6. The rotation prevention plate 7 can be easily fitted by inserting the angle 6 between the elastic piece 7b and the locking piece 7c. At this time, if the anti-rotation plate 7 is pressed against the angle 6, the elastic piece 7b can be easily fitted by the elastic action, and after the fitting, the elastic piece 7b comes into pressure contact with the outer surface of the horizontal portion of the angle 6. Further, the height of the locking piece 7c is slightly lower than the thickness of the vertical portion of the angle 6, so that the upper end of the locking piece 7c does not project inward from the vertical portion of the angle 6. The fitting position of the anti-rotation plate 7 corresponds to the left and right mounting portions at the upper end of the molding plate 4.

After that, the Z clip 1 is temporarily fixed to the mounting portion of the molding plate 4 with the bolt 2 and the nut 3, and the molding plate 4 is installed at a predetermined position so that the space between the Z clip 1 and the molding plate 4 is fixed. Insert angle 6 into. As a result, the rotation prevention plate 7 fitted in the angle 6 is sandwiched between the angle 6 and the molding plate 4.

FIG. 3 shows the engagement relationship between the angle 6, the anti-rotation plate 7 and the Z clip 1 as viewed from the inside, that is, the skeleton side, and the upper end of the Z clip 1 is a pair of anti-rotation plates in the anti-rotation plate 7. It is located between the pieces 7d.

When the bolt 2 is completely tightened from this state, the angle 6 is strongly sandwiched and tightly connected between the Z clip 1 and the forming plate 4, whereby the upper end of the forming plate 4 can be fixed. it can. At this time, the rotation prevention plate 7 is sandwiched between the angle 6 and the molding plate 4 and completely fixed.

After mounting the molding plate 4 in this way,
As shown by the diagonal grid pattern in FIG. 3, the pair of rotation preventing pieces 7d of the rotation preventing plate 7 are bent at the fold line 7e as a boundary to be inclined upward. This rotation blocking piece 7d is Z
Since the clip 1 is located at both ends of the Z clip 1 so as to sandwich the clip 1, it is possible to prevent the Z clip 1 from rotating around the bolt 2 even if the bolt 2 becomes loose due to vibration such as an earthquake. That is, even if the bolt 2 is loosened and the Z clip 1 tries to rotate around the bolt 2, it is bent and blocked by the rotation blocking pieces 7d located at both end portions.

As described above, the shaping plate 4 is fixed to the angle 6 through the Z-clip 1 on both the left and right sides of the upper and lower ends.
It suffices to attach the rotation prevention plates 7 to at least the left and right sides of the upper end portion, but the rotation prevention plates 7 may be attached to the left and right sides of the lower end portion.

FIG. 4 shows a case where the molding plate 4 is horizontally stretched, that is, the left and right columns 8 are formed.
This is a case where it is attached to a (steel frame column) in a laterally long shape, and here, a state in which the molding plates 4 are attached to both sides of the column 8 is shown. In this case, the auxiliary angles 9 are welded to the corners of the pillars 8, the angles 6 are welded to the auxiliary angles 9 along the length direction of the pillars 8, and the forming plate 4 is attached to the angles 6. Install.

At the time of mounting the molding plate 4, the rotation prevention plate 7 is fitted to the angle 6 as in the case of the vertical extension. The rotation prevention plate 7 can be easily fitted by inserting the angle 6 between the elastic piece 7b and the locking piece 7c. On this occasion,
When the rotation prevention plate 7 is pressed against the angle 6,
The elastic piece 7b can be easily fitted by the elastic action, and the elastic piece 7b comes into pressure contact with the side surface of the angle 6 after the fitting. Also in this case, the height of the locking piece 7c is slightly smaller than the thickness of the angle 6 so that the upper end of the locking piece 7c does not project to the inner surface of the angle 6. The fitting position of the rotation prevention plate 7 corresponds to the upper and lower mounting portions at the left and right ends of the molding plate 4.

After that, the Z clip 1 is temporarily fixed to the mounting portion of the molding plate 4 with the bolt 2 and the nut 3, and the molding plate 4 is installed at a predetermined position so that the space between the Z clip 1 and the molding plate 4 is fixed. Insert angle 6 into. As a result, the rotation prevention plate 7 fitted in the angle 6 is sandwiched between the angle 6 and the molding plate 4.

FIG. 5 shows a state in which the engagement relationship between the angle 6, the rotation preventing plate 7 and the Z clip 1 in the molded plate 4 on one side is viewed from the inside, that is, the side of the body, and the side end of the Z clip 1 is rotated. It is located between the pair of rotation blocking pieces 7d of the prevention plate 7.

When the bolt 2 is completely tightened from this state, the angle 6 is strongly sandwiched and tightly connected between the Z clip 1 and the forming plate 4, thereby fixing the side end portion of the forming plate 4. You can At this time, the rotation prevention plate 7 is sandwiched between the angle 6 and the molding plate 4 and completely fixed.

After mounting the molding plate 4 in this way,
The pair of anti-rotation pieces 7d of the anti-rotation plate 7 are bent at the folds 7e as boundaries to be inwardly inclined. Since the rotation blocking pieces 7d are located at both side ends of the Z clip 1 so as to sandwich the Z clip 1 as described above, even if the bolt 2 is loosened due to vibration such as an earthquake, the bolt of the Z clip 1 may be loosened. It is possible to prevent rotation about two times. That is, even if the bolt 2 is loosened and the Z clip 1 tries to rotate around the bolt 2, it is bent and blocked by the rotation blocking pieces 7d located at both end portions.

As described above, the molding plate 4 is fixed to the angle 6 through the Z clip 1 at the upper and lower sides of the left and right end portions, respectively.
It suffices to mount the rotation prevention plate 7 on at least the upper side of the left and right end portions, but the rotation prevention plate 7 may be mounted on the lower side of the left and right end portions.

In the above-mentioned embodiments, the extruded cement board has been described as the forming board, but the present invention is not limited to this, and the present invention can be similarly applied to the ALC board and other forming boards.

[0026]

As described above, according to the present invention, when the forming plate is attached via the Z clip, the rotation preventing plate is attached between the angle fixed to the body side of the building and the forming plate. Even if the bolt fastening the Z clip is loosened due to vibration such as an earthquake after construction, the rotation prevention plate can prevent the Z clip from rotating around the bolt. As a result, it is not necessary to weld the Z clip to the angle, the construction efficiency can be improved, and the coating film of the Z clip is not destroyed by high heat,
No smoke or odor is generated. Further, it is not necessary to increase the number of bolts or nuts for fixing the Z clip, and it is possible to prevent the mounting work from becoming complicated and prevent the cost from rising.
The anti-rotation plate according to the present invention has a simple structure, can be manufactured at low cost, and is easy to handle, so that construction efficiency is improved and, further, excellent effects such as ensuring safety after construction are exhibited. .

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of a rotation prevention plate according to the present invention.

FIG. 2 shows an embodiment of a method for mounting a molded plate according to the present invention, and is a schematic cross-sectional view in the case of vertical installation.

FIG. 3 is a state diagram showing an engagement relationship between an angle, an anti-rotation plate, and a Z clip in the case of vertical erection viewed from the body side.

FIG. 4 is a schematic cross-sectional view showing an embodiment of a forming plate mounting method according to the present invention in the case of horizontal lining.

FIG. 5 is a state diagram showing the engagement relationship between an angle, an anti-rotation plate and a Z clip in the case of horizontal lining viewed from the body side.

FIG. 6 is a perspective view showing a conventional mounting bracket.

FIG. 7 is a cross-sectional view of an essential part showing a conventional molded plate mounting state.

[Explanation of symbols]

1 ... Z clip 2 ... bolt 3 ... Nut 4 ... Molded plate 5 ... Beam 6 ... Angle 7 ... Anti-rotation plate 7a ... Main body 7b ... elastic piece 7c ... Locking piece 7d ... Rotation blocking piece 7e ... Crease 8 ... Pillar 9 ... Auxiliary angle

Claims (2)

[Claims] 1. A Z clip is temporarily fixed to an end of a molded plate with a bolt and a nut, and an angle fixed to a beam or the like of a building frame is inserted between the Z clip and the molded plate to complete the bolt. A molding plate mounting method for fastening a molding plate by fastening to a plate, wherein a rotation prevention plate is mounted between the angle and the molding plate. 2. The rotation preventing plate according to claim 1, wherein an elastic piece is formed at one end of the thin plate-shaped main body, and a locking piece is formed at the other end. A bendable rotation-preventing piece is oppositely disposed on both sides of the piece, the angle is fitted between the elastic piece and the locking piece, and the rotation-preventing piece is bent respectively to both end portions of the Z clip. Anti-rotation plate that prevents the Z-clip from rotating around the bolt by positioning it.