JP2010265632A - Implement for mounting wall panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an implement for mounting a wall panel, which decrease a shear force applied to a fastening member, by enhancing the property of making a mounting bracket follow a substrate fitting. <P>SOLUTION: This implement 10 for mounting the wall panel is used to mount a wall panel 1 on the substrate fitting 7A which is fixed to a structural skeleton 3. The implement 10 includes the mounting bracket 19A which comprises a panel mounting portion 23 bolted to the wall panel 1 and a sandwich portion 19c for sandwiching the substrate fittings 7A and 7B between itself and the wall panel 1, and a screw 25 which is inserted into the insertion hole 19e provided in the sandwich portion 19c and which penetrates through the substrate fitting 7A; and only the front end T of the sandwich portion 19c of the mounting bracket 19A is pressure-bonded to the substrate fitting 7A. By pressure-bonding only the front end T of the sandwich portion 19c of the zigzag plate 19A, the frictional resistance of the sandwich portion 19c to the substrate fitting 7A is increased; and the shear force acting on the screw 25 can be decreased through the cooperation between the zigzag plate 19A and the substrate fitting 7A. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a wall panel fixture for attaching a wall panel such as a lightweight cellular concrete panel to a base metal made of a substantially L-shaped steel material or the like.

As a wall panel mounting structure in a steel structure (S structure) or reinforced concrete (RC structure) building, there are cases where the wall panel is mounted between base metal fixtures fixed to the structural frame above and below the wall panel mounting position. In this type of wall panel mounting structure, a mounting hardware such as a lightning plate is mounted at a predetermined position of the wall panel, and the wall panel to which the mounting hardware is mounted is installed between the base hardware. As a wall panel fixture used for such a wall panel mounting structure, for example, a technique described in Patent Document 1 is known.
This mounting bracket formed by press-molding a flat plate has a panel mounting portion that is bolted to the wall panel, and a clamping portion that clamps the base metal with the wall panel. The back surface of the holding portion of the mounting bracket is pressed against the base metal by tightening the bolt, and the back surface of the panel mounting portion is also pressed against the wall panel by tightening the bolt. After the completion of the bolt tightening, an anchor pin (fastening member) is driven into the base metal so as to pass through the holding part of the mounting metal, so that the mounting bracket and the base metal are integrated.

JP 2003-96955 A

However, since the back surface of the panel mounting portion of the mounting bracket and the back surface of the clamping portion extend substantially in parallel with each other with a step substantially the same as the thickness of the base metal, the surface of the base metal and the back surface of the clamping portion are If the surface is in contact, strong winds, earthquakes, etc. cause interlaminar displacement in a multi-storey building, the underlying hardware will displace following the structural frame in the in-plane direction, but the wall panel will be in that location. Since it tries to stay, a large shearing force is generated on the bolts and anchor pins (fastening members) used to stop the mounting bracket due to the difference in displacement between the base metal and the wall panel. At this time, since the mounting bracket is firmly fixed to the wall panel by the bolt, there is a possibility that the anchor pin may be damaged due to a very large shearing force acting on the anchor pin (fastening member). There was a point.
If a large shearing force continues to act on the anchor pin continuously or intermittently, the anchor pin is likely to break, bend or come off. As a countermeasure, increase the number of anchor pins or anchors made of a material with high shear strength. It is necessary to use pins, which leads to an increase in cost and a decrease in workability.

  An object of this invention is to provide the wall panel fixture which improved the followable | trackability of the attachment metal fitting with respect to a base metal fitting, and reduced the shear force added to a fastening member.

The present invention relates to a wall panel fixture for attaching a wall panel to a base metal fixture fixed to a structural housing.
A mounting hardware having a panel mounting portion that is bolted to the wall panel, and a clamping portion that clamps the base metal hardware with the wall panel;
A clamping member and a fastening member that penetrates the base hardware,
Only the front end of the clamping part of the mounting hardware is crimped to the base metal.

  In this wall panel fixture, only the front end of the clamping part of the mounting hardware is pressure-bonded to the base metal, so that the frictional resistance of the clamping part against the base metal can be stably obtained. Even when the hardware or wall panel shakes, the followability of the mounting bracket to the base hardware can be improved. As a result, the shearing force acting on the fastening member can be reduced by the cooperation of the mounting bracket and the base hardware, increasing the number of fastening members, using a material with high shear strength, Since measures such as welding to hardware are not required, there is no increase in cost or workability.

The fastening member is preferably a screw.
When such a configuration is adopted, when the screw is screwed into the base metal, the chips generated from the base metal enter the gap between the sandwiching portion and the base metal, so that the chips are generated at the gap. It adheres to the screw, thereby preventing the screw from loosening. Furthermore, the chips that enter the gap contribute to an increase in the frictional resistance of the mounting bracket.

In addition, it is preferable that the clamping portion extends at a predetermined angle with respect to the mounting bracket mounting surface of the base hardware.
By adopting such a configuration, it is easy to generate a resilient force in the clamping part, and thereby, it is possible to keep the front end of the clamping part of the mounting hardware firmly and securely crimped to the base hardware. it can.

The angle is preferably about 0.3 degrees to about 1.5 degrees.
With such a configuration, the sandwiching portion is not so far away from the base hardware, and the chips that have entered the gap between the sandwiching portion and the base hardware are easily retained.

Further, it is preferable that the panel mounting portion extends at a predetermined angle with respect to the mounting bracket mounting surface of the wall panel.
If such a structure is employ | adopted, it will be easy to generate | occur | produce an elastic force in a panel attaching part, and, thereby, can make it difficult to loosen a nut.

  ADVANTAGE OF THE INVENTION According to this invention, the followable | trackability of the attachment metal fitting with respect to a base metal can be improved, and the shearing force added to a fastening member can be reduced.

It is a perspective view which shows the state in which the ALC panel was attached to the base metal. It is sectional drawing which shows the attachment structure in the lower part of an ALC panel. It is sectional drawing which shows the attachment structure in the upper part of an ALC panel. It is a front view of the screw applied to the wall panel fixture which concerns on this invention. The lightning plate applied to the wall panel fixture which concerns on this invention is shown, (a) is a top view, (b) is sectional drawing along the bb line of (a). It is a disassembled perspective view which shows the state at the time of attaching an attachment metal fitting to an ALC panel. It is a perspective view which shows the state at the time of attaching an ALC panel to a base metal. It is a principal part expanded sectional view which shows the relationship between a lightning plate and a base metal fitting. It is sectional drawing which shows the modification of a lightning plate.

  Hereinafter, a preferred embodiment of a wall panel fixture according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, an autoclaved light-weight concrete panel (hereinafter referred to as “ALC panel”) 1 corresponding to a wall panel is placed at a predetermined position of a reinforced concrete (Reinforced-Concrete) structural frame 3. It is built in one after another and is attached to the base metal objects 7A and 7B arranged vertically via dedicated lightning plates 19A and 19B and screws 25.

  The lightning plates 19A and 19B correspond to mounting hardware, the screws 25 correspond to fastening members, and the wall panel mounting tool 10 is composed of lightning plates 19A and 19B and screws 25. The attachment structures 9A and 9B are structures in which the ALC panel 1 is attached to the base metal parts 7A and 7B fixed to the structure housing 3 via the wall panel attachment 10.

  The base metal parts 7A and 7B are arranged along the lower part on the floor side and the upper part on the ceiling side of the opening formed in the structural case 3, and are fixed by welding or the like to the steel material embedded in the structural case 3. ing. The base metal parts 7A and 7B (see FIGS. 2 and 3) are made of a substantially L-shaped steel material, and have a horizontal side 7a that abuts the structural housing 3 and a vertical side 7b that stands upright from the horizontal side 7a.

  First, the attachment structure 9A of the ALC panel 1 to the lower base metal 7A will be described. As shown in FIG. 2, the ALC panel 1 is placed on the horizontal side 7a of the base metal 7A via a locking spacer 11, and the vertical side 7b is a mounting bracket mounting surface of the back surface 1a of the ALC panel 1. It is in contact with P2.

  A bolt 13 having a ring-shaped head portion 13 a is fixed to the ALC panel 1, and a shaft portion 13 b of the bolt 13 protrudes from the mounting bracket mounting surface P <b> 2 on the back surface 1 a of the ALC panel 1. The bolt 13 is inserted into the hole 6 formed in the ALC panel 1 on the head 13a side (see FIG. 6), and is pulled out by the steel rod 15 inserted so as to intersect the head 13a in the insertion hole 8. It is fixed so that there is no.

  A lightning plate 19 </ b> A is assembled to the shaft portion 13 b of the bolt 13. The lightning plate 19 </ b> A passes through the shaft portion 13 b and comes into contact with the mounting bracket mounting surface P <b> 2 on the back surface 1 a of the ALC panel 1. In the present embodiment, the lightning plate 19A is in contact with the mounting bracket mounting surface P2 on the back surface 1a of the ALC panel 1, but a separate plate is sandwiched between the lightning plate and the ALC panel 1. Also good.

  As shown in FIG. 5, the lightning plate 19 </ b> A is formed by pressing a substantially rectangular and flat steel material, and is processed so that a step 19 a is formed at the center. One side is a panel mounting portion 19b that is bolted to the ALC panel 1 across the step 19a, and the other side is a clamping portion 19c that clamps the base metal 7A with the ALC panel 1.

  The panel attachment portion 19b is formed with a hole 19d through which the shaft portion 13b of the bolt 13 is inserted. A nut 21 is screwed into the shaft portion 13b protruding from the panel mounting portion 19b, and by tightening the nut 21, the lightning plate 19A is pressed and fixed to the ALC panel 1 side. An insertion hole 19e through which the screw 25 passes is formed in the clamping part 19c. Furthermore, a corner cut portion 19f with a corner dropped to improve workability is formed at the end of the clamping portion 19c.

  Further, as shown in FIGS. 5 and 8, the holding portion 19c extends linearly at an angle α1 in a state of a so-called “tip recess” with respect to the mounting bracket mounting surface P1 of the base metal 7A. The angle α1 is about 0.3 degrees to about 1.5 degrees. The height difference L of the tip T on the back surface side of the sandwiching portion 19c is slightly smaller than the thickness of the base metal 7A. Further, the height difference L ′ of the root T ′ on the back surface side of the clamping portion 19 c is equal to or slightly larger than the thickness of the base metal 7 </ b> A. By configuring the clamping part 19c in this way, only the front end T can be crimped to the mounting bracket mounting surface P1 of the base metal 7A in the clamping part 19c.

  As shown in FIG. 4, the screw 25 includes a screw portion 27 in which a male screw for tapping the base metal 7 </ b> A is formed, and a head portion 29 that comes into contact with the clamping portion 19 c on the base end side of the screw portion 27. Further, a cutting edge portion 31 for forming a prepared hole is provided on the tip side of the screw portion 27. The screw portion 27 has an incomplete screw portion 27b in which the screw thread is incomplete and a complete screw portion 27a in which the screw thread is complete. Note that there may be a portion without a thread between the screw portion 27 and the head portion 29.

  The cutting blade part 31 has a pointed part 31a having a hole at the tip and a reamer part 31b. The reamer part 31b has a plurality of blades formed linearly from the pointed part 31a toward the threaded part 27 side, and expands the prepared hole formed by the pointed part 31a so that the threaded part 27 enters. A pilot hole is formed.

  The effective length of the cutting edge portion 31, that is, the length D1 from the start end of the reamer portion 31b to the start end of the screw portion 27 is the thickness d1 of the clamping portion 19c of the lightning plate 19A and the thickness of the vertical side 7b of the base metal 7A. It is longer than the total thickness D2 of d2. Further, the working length of the screw 25, that is, the length D3 from the starting end of the complete screw portion 27a to the head portion 29 is longer than the total plate thickness D2.

  The screw portion 27 of the screw 25 passes through the clamping portion 19c and the vertical side 7b of the base metal 7A and is screwed to the base metal 7A. By tightening the screws 25, the lightning plate 19A and the base metal 7A are firmly attached. As a result, the ALC panel 1 is attached to the base metal 7A via the lightning plate 19A.

  The effective length D1 of the cutting edge 31 of the screw 25 is longer than the total thickness D2 of the thickness d1 of the lightning plate 19A of the lightning plate 19A and the thickness d2 of the base metal 7A. The effect produced by the effective length D1 of the cutting blade part 31 being longer than the total plate thickness D2 will be described.

  When the cutting edge 31 of the screw 25 contacts the base metal 7A and the ALC panel 1 to form a pilot hole, the travel distance of the lead cannot be obtained even if the screw 25 is idle or does not idle. Or In this state, if the lightning plate 19A and the screw portion 27 are screwed together, a force acts on the lightning plate 19A in the backward direction of the screw 25 due to the idle rotation of the screw 25, and the like against the base hardware 7A and 7B. There is a risk of floating.

  However, in the present embodiment, since the effective length D1 of the cutting edge portion 31 is longer than the total thickness D2 of the thickness d1 of the lightning plate 19A and the thickness d2 of the base metal 7A, the screw 25 is idle. However, at that position, the screw portion 27 is not screwed with the lightning plate 19A, and as a result, the lightning plate 19A is restrained from being lifted, and the lightning plate 19A is firmly and stably attached to the base metal 7A. It becomes possible.

  Further, an insertion hole 19e through which the screw 25 is inserted is formed in advance in the holding portion 19c of the lightning plate 19A. Therefore, drilling and tapping in the lightning plate 19A can be reduced, and unnecessary twisting torque required for these processes is not required, so that workability can be improved.

  After the pilot hole is formed by the cutting blade portion 31, the screw portion 27 is screwed around the lower hole as the screw 25 advances, and the head portion 29 of the screw 25 comes into contact with the lightning plate 19A. The lightning plate 19A is pressed against the base metal 7A side. As a result, the lightning plate 19A is firmly attached to the base metal 7A, and the attachment of the ALC panel 1 to the base metal 7A is completed.

  The total thickness D2 of the thickness d1 of the lightning plate 19A and the thickness d2 of the base metal 7A is smaller than the working length D3 of the screw 25. Therefore, when the screw 25 is screwed, the screw portion 27 becomes the base. The metal piece 7A is reliably reached and screwed in, and the screw 25 is prevented from coming off.

  As shown in FIG. 3, the upper part of the ALC panel 1 is also attached to the upper base metal 7B by an attachment structure 9B similar to the lower attachment structure 9A, and the lightning plate 19B used for this attachment structure 9B is: It is the same part as the lightning plate 19A described above.

  Next, a procedure when the ALC panel 1 is built in the structural housing 3 will be described.

  Since there are many common procedures for attaching the upper and lower parts of the ALC panel 1, the description will be made focusing on the lower attachment procedure, and the upper attachment procedure will be briefly described.

  As shown in FIG. 6, a hole 6 for inserting a bolt 13 having a ring-shaped head portion 13 a is formed in the mounting bracket mounting surface P <b> 2 of the back surface 1 a of the ALC panel 1. Insert from 13a side. Next, the steel rod 15 is inserted into the insertion hole 8 extending in the ALC panel 1 along the direction orthogonal to the bolt 13, and the steel rod 15 is inserted into the head 13a to fix the bolt 13 in a predetermined position.

  Next, the shaft portion 13b is inserted into the hole 19d of the lightning plate 19A, and the nut 21 is temporarily tightened. In addition, the clamping part 19c of the lightning plate 19A is retracted to the side away from the structural housing 3 of the ALC panel 1 so as not to interfere with the construction of the ALC panel 1. In this state, the temporary fastening of the lightning plate 19A to the lower part of the ALC panel 1 is completed. Thereafter, the lightning plate 19B is temporarily fixed also to the upper part of the ALC panel 1 according to the same procedure.

  When the temporary fixing of the lightning plates 19A and 19B is completed, the ALC panel 1 is transported to a predetermined position of the structural housing 3 and built. At the time of installation, the ALC panel 1 is temporarily placed so as to line up with another ALC panel 1 already attached to the structural housing 3, and alignment is performed between the lower base metal 7A and the upper base metal 7B. .

  Thereafter, the holding portion 19c of the lower lightning plate 19A is rotated around the bolt 13 so as to hook the base metal 7A, and the nut 21 is finally tightened in a predetermined direction (see FIG. 7). By tightening the nut 21, the panel mounting portion 19b of the lightning plate 19A is pressed toward the panel 1, and the clamping portion 19c is pressed toward the base metal 7A. Here, since the pinching portion 19c is provided with the corner cut portion 19f, the lightning plate 19A can be rotated in a predetermined direction without the corner of the pinching portion 19c hitting the structural housing 3.

  When the position for connecting the holding portion 19c to the base metal 7A is determined, the screw 25 is inserted into the insertion hole 19e of the holding portion 19c and screwed with a screw driver while applying a predetermined pressure. The screw 25 advances while rotating, and the cutting edge portion 31 forms a pilot hole in the base metal 7A.

  After the pilot hole is formed by the cutting blade portion 31, the screw portion 27 is screwed around the lower hole as the screw 25 advances, and the head portion 29 of the screw 25 comes into contact with the lightning plate 19A. The lightning plate 19A is further pressed toward the base metal 7A side. As a result, the lightning plate 19A is firmly attached to the base metal 7A, and the attachment of the ALC panel 1 to the base metal 7A is completed.

  The total thickness D2 of the thickness d1 of the lightning plate 19A and the thickness d2 of the base metal 7A is smaller than the working length D3 of the screw 25. Therefore, when the screw 25 is screwed, the screw portion 27 becomes the base. The metal piece 7A is reliably reached and screwed in, and the screw 25 is prevented from coming off.

  The attachment of the ALC panel 1 and the lower base metal 7A has been described above, but the same applies to the upper base metal 7B. That is, the holding part 19c of the upper lightning plate 19B is rotated so that the upper base metal part 7B is hooked, and the base part 7c is screwed to the base metal part 7B so as to sandwich the base metal part 7B with the ALC panel 1. Stop. As a result, the attachment of the ALC panel 1 to the upper base metal 7B is completed.

  In the wall panel fixture 10 used for the construction of the ALC panel 1 as described above, only the front end T of the clamping portion 19c of the lightning plates 19A and 19B is pressure-bonded to the base metal 7A and 7B, thereby providing the base metal 7A and 7B. This increases the frictional resistance of the clamping portion 19c against the base metal 7A, 7B or the ALC panel 1 due to strong winds or an earthquake, etc., so that the lightning plates 19A, 19B can follow the base hardware 7A, 7B. Can be increased. As a result, the shearing force acting on the screws 25 can be reduced by the cooperation of the lightning plates 19A and 19B and the base hardware 7A and 7B, and the number of screws 25 can be increased or a material having high shear strength can be used. In addition, since it is not necessary to take measures such as welding the clamping portion 19c to the base metal parts 7A and 7B, there is no increase in cost and workability.

  In particular, the lightning plates 19A and 19B are attached to the ALC panel 1 by a single bolt 13, so that a strong wind or an earthquake may cause the displacement of the bolt 13 around the bolt 13; The generation of a strong frictional force at the tip T of the plate greatly contributes to the rotation prevention of the lightning plates 19A and 19B.

  Further, as shown in FIG. 8, when the screw 25 is screwed into the base metal 7A, the chips G generated from the base metal 7A enter the gap S between the sandwiching portion 19c and the base metal 7A. The chip G adheres to the screw 25 at the gap S, thereby preventing the screw 25 from loosening. Furthermore, since the chip G that has entered the gap S fills the gap S, it also contributes to an increase in the frictional resistance of the lightning plate 19A.

  Further, since the clamping portion 19c extends at an angle α1 with respect to the mounting bracket mounting surface P1 of the base hardware 7A, 7B, it is easy to generate a resilient force in the clamping portion 19c, thereby the lightning plates 19A, 19B. The front end T of the clamping part 19c can be maintained in a state where the front end T is firmly and surely crimped to the base metal parts 7A and 7B.

  Further, since the angle α1 is about 0.3 degrees to about 1.5 degrees, the sandwiching portion 19c is not too far from the base metal 7A, 7B, and the sandwiching portion 19c and the base metal 7A, 7B are not separated from each other. It is easy to retain the chips G that have entered the gap S.

  It goes without saying that the present invention is not limited to the embodiment described above. For example, as shown in FIG. 9, as another lightning plate 19C, the panel mounting portion 19g extends with a predetermined angle α2 with respect to the mounting bracket mounting surface P2 of the ALC panel 1. The angle α2 is preferably 2 to 15 degrees. By adopting such a configuration, it is easy to generate an elastic force in the panel mounting portion 19g, and thereby, the nut 21 can be made difficult to loosen.

  The angle α1 may be not less than 1.5 degrees and not more than 5 degrees. Further, the fastening member may use a gun pin instead of the screw 25.

  DESCRIPTION OF SYMBOLS 1 ... ALC panel (wall panel), 3 ... Structural frame, 7A, 7B ... Base metal, 9A, 9B ... Wall panel mounting structure, 10 ... Wall panel fixture, 19A, 19B, 19C ... Lightning plate (mounting hardware) , 19b: Panel mounting portion, 19c: Nipping portion, 19e: Screw insertion hole, 23: Panel mounting portion, 25: Screw (fastening member), P1, P2: Mounting bracket mounting surface, T: Tip of the clamping portion, α1 , Α2 ... An angle.

Claims (5)

In the wall panel fixture for attaching the wall panel to the base metal fixture fixed to the structural frame,
A mounting hardware having a panel mounting portion that is bolted to the wall panel, and a clamping portion that clamps the base metal hardware with the wall panel;
A fastening member that penetrates the clamping part and the base metal,
Only the front end of the clamping part of the fitting is pressure-bonded to the base metal fitting.   The wall panel fixture according to claim 2, wherein the fastening member is a screw.   The wall panel fixture according to claim 1 or 2, wherein the clamping portion extends at a predetermined angle with respect to a mounting bracket mounting surface of the base metal fitting.   The wall panel fixture of claim 3, wherein the angle is from about 0.3 degrees to about 1.5 degrees.   The wall panel mounting tool according to any one of claims 1 to 4, wherein the panel mounting portion extends at a predetermined angle with respect to a mounting bracket mounting surface of the wall panel.

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