JP2002235422A - Repairing device for building exterior wall of alc slab - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repairing device capable of positively fixing an ALC slab so as not to be damaged by fixing a support fitting for mounting an external facing material to the outside of an ALC exterior wall, directly to a building skeleton without applying load to the ALC slab. SOLUTION: In this repairing device, the support fitting is inserted from a core through hole piercing the ALC exterior wall, to fix the support fitting to the building skeleton, and vertical furring strips or horizontal furring strips are fixed to the support fitting to mount the external facing material to the vertical furring strips or horizontal furring strips fixed to the outside of the ALC exterior wall. The support fitting is formed of an outer member and an inner member which are extensible in the longitudinal direction so as to be adjustable in the whole length. In the support fitting 110, both outer member and inner member are bottomed square cylinder bodies, and a screw shaft is rotatably provided inside the outer member, while the inner member is provided with an internal thread screwed to the screw shaft. Both members are connected to each other with the screw and extensible longitudinally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for repairing a building outer wall whose outer wall is formed of an ALC plate.

[0002]

2. Description of the Related Art ALC plates (cellular concrete or lightweight cellular concrete) are lightweight and excellent in heat insulation, sound insulation and fire resistance performance, and have been widely used as outer wall materials as partition walls, floors and roof materials. Is what it is.

Many of these properties largely depend on the porous nature of the ALC plate, but also have the disadvantage of high water absorption. For this reason, when used for an outer wall or a roof, it is necessary to provide a sufficient waterproof treatment to the surface. Painting is effective for waterproofing,
Since the building surface is repeatedly dried and wet over many years, as the age of the building increases, the surface deteriorates and the adhesion of the paint decreases.
For this reason, when painting the deteriorated ALC outer wall, there arises a problem that a pretreatment operation such as scraping off the surface at the time of painting is required.

[0004] When the ALC outer wall is deteriorated, a method of replacing it with a new outer wall is conceivable, but this method is not always advantageous in terms of waste material treatment or construction cost.

In order to solve the above problems, a method has been developed in which an exterior material is attached to the surface of an existing outer wall, the characteristics of the ALC plate are left, and the surface of the building is beautifully repaired.

As an example of the prior art, Japanese Patent Application Laid-Open No. 2-101
251 and Japanese Unexamined Patent Publication No. 4-38363.

[0007] The former of the prior art, as shown in FIG.
The metal fitting 4 for attaching the exterior material to be attached to the outside of the outer wall C is fixed to the building frame (H-shaped steel) 1, but not all the metal fittings are fixed to the frame 1 and a part of the metal fitting 8 is fixed to the anchor 9.
Is fixed to the ALC plate. However, even if the anchor is driven into the ALC plate whose surface has deteriorated, there remains a problem that the anchor strength for supporting the exterior material against wind pressure or the like cannot be sufficiently obtained.

On the other hand, in the latter case of the prior art, as shown in FIG. 4, a metal member 6 for mounting a panel provided on the outer wall of a building is fixed to the ALC plate 1 by the fixing member 2, and this case also has the above-mentioned reason. Therefore, there is a problem that the exterior material mounting strength is not sufficient.

[0009]

SUMMARY OF THE INVENTION The present invention does not damage the ALC plate by directly fixing the support for attaching the exterior material to the outside of the ALC outer wall to the building frame without applying a load to the ALC plate. It is an object of the present invention to provide a refurbishment device which can be fixed securely.

[0010]

Means for Solving the Problems A solution is to insert a support bracket through a core-piercing hole penetrating the outer wall of the ALC and fix the support bracket to a building frame. A fixing device for fixing an outer member to a vertical trunk edge or a horizontal trunk edge fixed to the outside of an ALC outer wall, wherein a support bracket 110 is formed by an outer member and an inner member, and both are arranged in a longitudinal direction. It is characterized by being telescopic and adjustable in overall length.

The support fitting 110 of a typical embodiment is a rectangular cylinder having a bottom with an outer member and an inner member, and is provided inside the outer member so that a screw shaft can freely rotate. Is provided with a female screw which is screw-coupled to the above-mentioned screw shaft, and both are screw-coupled to each other and are capable of extending and contracting in the longitudinal direction.

In the repair work, the support fitting 110 is inserted through the coring hole 40 formed in the ALC outer wall 3 and fixed to the building frame 1. The support member 110 includes an outer member 111 and an inner member 11.
2 is moved relatively to adjust the length. Next, support bracket 1
10 and the horizontal waist edge 30 is fixed to the vertical waist edge 20. The exterior material 50 covering the surface of the building is fixed to the horizontal trunk 30. Since the entire length of the support bracket 110 can be adjusted, not only can the ALC outer wall having a different thickness be accommodated, but also the difference in the distance from the skeleton to the front edge of the ALC outer wall can be accommodated.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a vertical trunk 20 for attaching an exterior material.
FIG. 2 shows a longitudinal section in a state where the horizontal waist edge 30 is provided outside the ALC outer wall 3, and FIG. 2 shows a representative embodiment of the support fitting 110.

In these figures, reference numeral 1 denotes a frame of a building, which is formed of H-shaped steel, and forms an outer wall by connecting an angle type mounting bracket 2 and a reinforcing bar 4 provided at a joint portion of the ALC outer wall 3. ing. In FIG. 1, the right side of the ALC outer wall 3 is the inside of the building. Reference numeral 110 denotes a support, which is fixed to the skeleton 1. The support 110 includes an outer member 111 and an inner member 112, and both members are connected to each other so as to be able to expand and contract in the axial direction.

2A and 2B, the outer member 111 and the inner member 112 are both rectangular cylinders having a bottom. As shown in FIGS.
Does not rotate but is slidably fitted in the axial direction. A fixation plate 114 having a recess 115 formed in the center is fixed to the bottom 113 of the outer member 111, and a screw shaft 116 which faces in the axial direction in the outer member 111 can freely rotate the head 117 in the recess 115. It is accommodated and provided. Note that 11
Reference numeral 8 denotes a tool engagement groove provided at the tip of the screw shaft 116, 119
Is a drill screw for attaching the outer member 111 to the frame.

A guide cylinder 121 facing the inside of the cylinder is formed at the bottom 120 of the inner member 112, and a female screw 122 for screwing with a screw shaft 116 is provided at the tip of the guide cylinder 121. .

In the figure, reference numeral 20 denotes a vertical waist edge, and 30 denotes a horizontal waist edge. A plurality of these are attached at regular intervals.

The procedure for attaching the support bracket 110 to the skeleton 1 is as follows. First, the position of the skeleton 1 is checked from the surface of the ALC outer wall 3 and blacking is performed. Is formed to form a core hole 40. The support member 110 includes an outer member 111 and an inner member 11.
2 are separated, and the bottom side of the outer member 111 is inserted toward the skeleton 1, and the bottom 113 is fixed to the skeleton 1 with a drill screw 119.

Next, the inner member 112 is inserted into the outer member 111. Then, the screw shaft 116 and the guide cylinder 121 are screwed together. Since the screw shaft 116 can freely rotate with respect to the outer member 111, when a tool such as a screwdriver is inserted into the guide cylinder 121, the tool tip is engaged with the tool engagement groove 118, and the screw shaft 116 is rotated. The outer member 111 and the inner member 112 move relative to each other so that the entire length of the support fitting 110 can be adjusted.

Subsequently, the vertical body edge 20 is fixed to the bottom 120 of the inner member 112 by means of a drill screw 41 or tacking. After the vertical waist edges 20 are attached at appropriate intervals, the horizontal waist edges 30 are fixed to the respective vertical waist edges 20 at appropriate intervals also by drill screws or tacking.

As a result, the vertical body edge 20 and the horizontal body edge 30 are provided on the surface of the ALC outer wall 3 at regular intervals, and the exterior material 50 is attached to the horizontal body edge 30. However, the gap between the coring hole 40 and the support fitting 110 may be filled with a filler 42 such as a foam material before the exterior material attaching work. Filler 4
Numeral 2 maintains the heat insulation and sound insulation performance of the ALC outer wall 3 and exhibits an effect of absorbing an impact due to an earthquake or the like.

[0022]

As described above, according to the present invention, a supporting bracket which is formed so as to be stretchable and whose overall length can be adjusted is fixed to a building frame, and a vertical body edge and a horizontal body edge are fixed to the supporting metal. Since the exterior material is attached and the support metal for supporting the exterior material can be directly fixed to the building frame without applying a load to the ALC plate, there is an effect that the ALC outer wall is not damaged.

Further, since the outer and inner members of the supporting bracket are extensible and the overall length of the bracket can be adjusted, various kinds of ALC outer walls having different thicknesses, and a rim on the front side of the ALC outer wall from the frame. There is an effect of being able to cope with the difference in the distance to.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a vertical body edge and a horizontal body edge for attaching an exterior material are provided on an ALC outer wall.

FIGS. 2A and 2B show a typical embodiment of a support fitting, wherein A is a cross-sectional view and B is a front view.

FIG. 3 is an explanatory view showing a conventional technique.

FIG. 4 is an explanatory view showing another conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Angle type mounting bracket 3 ALC outer wall 4 Reinforcing bar 20 Vertical torso 30 Horizontal torso 40 Coring hole 41 Drill screw 42 Filler 50 Exterior material 110 Supporting metal fitting 111 External member 112 Inner member 113 Bottom 114 Backing plate 115 Concave 116 Screw Shaft 117 Head 118 Tool engaging groove 119 Drill screw 120 Bottom 121 Guide cylinder 122 Female screw

Claims (3)

[Claims] 1. A support bracket is inserted into a core-piercing hole that penetrates an ALC outer wall, the support bracket is fixed to a building frame, and a vertical trunk edge or a horizontal trunk edge is fixed to the support bracket. A repair device for attaching an exterior material to a vertical or horizontal body edge fixed to a rectangular tube, wherein a support bracket (110) is formed by an outer member and an inner member, and both the outer and inner members have a bottomed rectangular tube. A screw shaft is provided inside the outer member so that the screw shaft can freely rotate, and an inner member is provided with a female screw that is screw-coupled to the screw shaft. An ALC version of a building outer wall repairing device, characterized in that it is telescopic and can be adjusted in overall length. 2. A guide cylinder according to claim 1, wherein a guide cylinder facing the inside of the inner member is provided at a bottom of the inner member, and a female screw screw-coupled to a screw shaft of the outer member is provided at a distal end of the guide cylinder. The ALC version building exterior wall repair apparatus according to claim 1, wherein: 3. The backing plate according to claim 1, wherein a backing plate having a recess formed in the bottom of the outer member is fixed, and a screw shaft extending in the axial direction in the outer member is housed in the recess so that the head can freely rotate. The ALC version building exterior wall renovation apparatus according to claim 1, wherein the ALC version building is provided so as to protrude from a backing plate.