JPH0567741B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for attaching an exterior supporting material such as a field edge or a field edge support to a wall, and
Especially if the walls are made of lightweight aerated concrete panels (usually
This relates to exterior support mounting equipment that can be attached to soft walls such as ALC panels.

[Conventional technology]

In recent years, buildings using lightweight aerated concrete panels as wall materials have been built in various places, but these lightweight aerated concrete panels sometimes develop cracks after construction. If water enters the building, it may cause leaks or deteriorate the overall appearance of the building, so it was necessary to carry out repair work on the exterior.

Furthermore, even if there are no cracks or crevices in the lightweight aerated concrete panels themselves, in order to change the overall image of the building in line with the times, it is necessary to carry out exterior work on the surface of the lightweight aerated concrete panels after a certain period of time has passed. It was hot.

FIG. 6 shows a procedure for mounting a lightweight cellular concrete panel on a wall according to a conventional example. As shown in the figure, a hole 11 of a predetermined size is provided in the lightweight cellular concrete 10, and a hook bolt 12 The hook bolt 12 is welded to the angle 12a which is a holding member, the field edge receiver 13 is screwed to the hook bolt 12, the field edge 14 is attached, and the exterior panel 15 is attached.

In addition, FIG. 7 shows a procedure for attaching an exterior panel to a wall of lightweight aerated concrete according to another conventional example. Insert the bolt 18 into the hole 17, and attach the field edge receiver 1 to the bolt 18.
9 with screws, and attach the edge 20 and exterior panel 21.
was held fixed.

[Problem that the invention seeks to solve]

However, in the conventional example shown in FIG. 6, since the lightweight aerated concrete 10 is relatively soft,
There was a problem that a heavy exterior panel 15 could not be used.

Furthermore, even if a relatively light exterior panel is used, the holes 11 into which the hook bolts 12 are inserted may become large due to earthquakes or other vibrations during use, causing problems such as the exterior panel 15 peeling off. It was hot.

On the other hand, as shown in FIG.
When fixed, the relatively heavy exterior panel 21
However, it is necessary to open a stepped hole 17 from the back side and insert a bolt 18, and an interior panel is usually attached to the back side, and this interior panel There was a problem in that it required a great deal of labor and expense to remove and carry out construction work.

The present invention was developed in view of these circumstances, and allows construction to be carried out from the surface side of lightweight aerated concrete, and also allows exterior support materials such as field edges or field edge supports to be protected even in the event of earthquakes or vibrations. It is an object of the present invention to provide an exterior support material attachment device that can be attached to lightweight aerated concrete without loosening.

[Means for solving problems]

In accordance with the above-mentioned object, the exterior support material mounting device according to the present invention is provided with a flange portion that comes into contact with the surface of the wall to be mounted on one end, and has a cross-sectional length of a predetermined length in which a bolt insertion hole is eccentrically formed. A circular mounting device body is inserted into the bolt insertion hole, and the other end is formed with a bent part bent within a range slightly shorter than the maximum length between the eccentrically formed bolt insertion hole and the outer peripheral surface with an oval cross section. a hook bolt whose bent portion abuts the back surface of the wall during installation, and whose overall length is longer than the mounting device body;
A tightening nut is screwed onto the hook bolt from one end.

Here, the other end of the hook bolt is bent at a substantially right angle, and the other end of the mounting device body has a notch into which the bent part of the bolt is fitted.
It may be formed in a part where the distance between the bolt insertion hole and the outer peripheral surface of the oval cross section is short;
Further, the tip of the hook bolt may be bent into a semicircular arc shape.

Furthermore, the present invention is applicable even if a female thread into which a support bolt is screwed is provided in addition to the bolt insertion hole on the side where the flange portion of the mounting device main body is formed.

Note that when the bent part of the hook bolt comes into contact with the back of the wall, it includes not only the case where it comes into direct contact with the back of the wall, but also the case where it comes into contact with the aggregate (for example, angle material) provided on the back of the wall in between. .

[Effect]

Next, a method of using the exterior support material attachment device according to the present invention and its function will be explained.

In advance, an oblong hole that matches the cross-sectional shape of the above-mentioned mounting device body is provided from the front side at a predetermined position of the lightweight cellular concrete wall to be installed, for example, and one end of the mounting device body of the exterior support material mounting device is inserted into the hole in the lightweight cellular concrete. Insert until the flange attached to the wall touches the wall.

In this case, the tip of the hook bolt is bent within a range shorter than the maximum length between the bolt insertion hole and the outer circumferential surface of the oval cross section, so by keeping the hook bolt at a predetermined angle, it is possible to install the lightweight aerated concrete wall without any problems. Then, by rotating the hook bolt approximately 180 degrees, the bent part of the tip of the hook bolt will come into contact with the back surface of the lightweight cellular concrete.

In addition, the length of the above-mentioned mounting device body is formed to a predetermined length, and when the hook bolt is rotated, the bent part at the tip of the hook bolt comes into contact with the back surface of the lightweight aerated concrete wall, and the tightening nut screwed into the hook bolt. By tightening from the front, the exterior support material mounting device is fixed with the mounting device main body and the bent portion of the tip of the hook bolt sandwiching the wall.

After this, if necessary, an exterior support member such as a field frame receiver or field frame with a predetermined mounting hole formed therein may be screwed to one end of the hook bolt, or in some cases, a separate support bolt may be screwed into the mounting device body. A female thread is formed in advance, and a support bolt is screwed into this female thread to attach the exterior support member.

〔Example〕

Next, embodiments embodying the present invention will be described with reference to the attached drawings to provide an understanding of the present invention.

As shown in FIGS. 1 and 2, an exterior support material attachment device 25 according to an embodiment of the present invention includes an attachment device body 26 having a substantially oval cross section and a bolt insertion hole of the attachment device body 26. The hook bolt 27 to be
A tightening nut 28 screwed into the hook bolt 27
It is composed of: These will be explained in detail below.

The mounting device main body 26 is made of cast iron (or iron, plastic, or cement and iron may be used depending on the case).
Its main cross-sectional shape is an oval formed by joining opposing semicircles with a straight line, and one end has a flange portion 2.
9 is formed, and the flange portion 29 is provided with a rib 29a for reinforcement (this rib 29a can be omitted by increasing the strength of the flange portion 29). . Further, in the mounting device main body 26, a bolt insertion hole 30 and a female thread 31 are formed from one end side in parallel to the bolt insertion hole 30 near the center of each semicircle inside. This female screw 31 is for fixing an exterior support material such as a field frame holder to the bolt by screwing a long bolt here if necessary. This is used when the distance between panels is long.

The bolt fitting hole 30 has the bolt fitting hole 30
A hook bolt 27, which is longer than the entire length of the hook bolt 27 and whose tip is bent at a substantially right angle, is inserted. A notch 33 into which the bent portion 32 at the tip of the hook bolt 27 is fitted is formed in a portion where the distance between the bolt insertion hole 30 and the outer circumferential surface of the oval cross-section is short.

The distance between the part where the hook bolt 27 comes into contact with this notch 33 and the inner part of the flange part 29 is as follows:
If the thickness of the lightweight aerated concrete wall, which is an example of a wall to which the exterior support material attachment device 25 is to be attached, is tightened and the tightening nut 28 of the hook bolt 27 is tightened, the hook bolt will surely attach to the back surface of the lightweight aerated concrete wall. The bent portions 32 of 27 are brought into contact with each other.

In addition, the total length from the inside of the flange portion 29 of the fixture body 26 is slightly larger than the thickness of the lightweight aerated concrete wall, and the back surface 3 of the fixture body 26 is slightly larger than the thickness of the lightweight aerated concrete wall.
4 with the bent portion 32 of the hook bolt 27,
When inserted into a predetermined hole provided in a lightweight aerated concrete wall, the bent portion 32 comes out from the back surface 34.

The third example shows the state in which the exterior support material attachment device 25 according to the above embodiment is attached to the lightweight aerated concrete wall 35.
As shown in the figure, an oblong hole 36 into which the fixture body 26 fits is formed in the lightweight aerated concrete wall 35, and the fixture body 26 is inserted into the oblong hole 36.
Insert 6. In this case, hook bolt 27
The bent portion 32 at the tip of the
4 so as not to contact the side of the oblong hole 36.

In this case, in order to seal out rainwater, it is preferable to appropriately spread or apply a sealing material to the rear of the flange portion 29.

Next, turn the hook bolt 27 to
into the notch 33. As a result, the bent portion 32 at the tip of the hook bolt 27 comes into contact with the back surface of the lightweight aerated concrete wall 35, so by tightening the tightening nut 28, the flange portion 29 and the bent portion 32 are It will be held with the aerated concrete walls 35 in between. Here, since the lightweight cellular concrete wall 35 is relatively soft, the rib 29a formed on the flange 29 will dig into the lightweight cellular concrete wall 35 without any problem.

In addition, the mounting device main body 26 has an oval cross section, and the hole formed in the lightweight cellular concrete wall 35 is an oval hole 36, so that the tightening nut 28 does not turn when tightened, and the hook bolt 27 Notch 3 formed in the mounting device main body 26
Since the bent portion 32 is inserted into the bolt 3, there is no co-rotation, and therefore the tightening nut 28 can be tightened without any problem.

FIG. 4 shows another example of exterior work on a lightweight aerated concrete wall using this exterior support material attachment device 25. A hole 38 is provided, and the mounting device body 26 of the exterior support material mounting device 25 is fitted into the oblong hole 38. Next, the hook bolt 27 is rotated 180 degrees so that it fits into the notch 33, and is hooked onto the angle member 39 that fixes the lightweight cellular concrete wall 37. In this state, the tightening nut 28 is tightened, and the exterior support member attachment device 25 is attached to the lightweight cellular concrete wall 37 and the angle member 39. As a result, the exterior support material attachment device 25 can be more firmly attached than if the exterior support material attachment device 25 is attached only to a lightweight aerated concrete wall.
5 can be fixed.

Next, a field edge receiver 40, which is an example of an exterior support material, is screwed to the end of the hook bolt 27, and a field edge receiver 40, which is also an example of an exterior support material, is screwed to the end of the hook bolt 27.
1 is attached to complete the attachment of the support member for fixing the exterior panel to the lightweight aerated concrete wall 37.

Next, the exterior support material attachment device 43 shown in FIG.
The differences from the exterior support material attachment device 25 according to the above embodiment will be explained. Note that the same components as those of the exterior support material attachment device 25 according to the above embodiment are given the same numbers and their explanations are omitted.

The tip of the hook bolt 46 fitted into the bolt insertion hole 45 of the mounting device main body 44 of the exterior support material mounting device 43 according to the above embodiment has a semi-circular bent portion 4.
7 is formed. A somewhat straight portion 48 is formed at the end of this bent portion 47, and the tip thereof is configured to abut against a lightweight aerated concrete wall or the like.

On the other hand, at the other end of the hook bolt 46,
A notch 49 is formed in the same direction as the direction in which the tip of the hook bolt 46 is bent, so that it can be seen in which direction the bent portion 47 of the hook bolt 46 is facing when viewed from the front side.

Further, a projection 50 is provided at the position where the hook bolt 46 exits from the bolt insertion hole 45, and a recessed portion 51 that engages with the projection 50 is provided at the exit of the bolt insertion hole 45.
It has a structure that prevents rotation of the two.

The same applies to the exterior support material attachment device 25 according to the embodiment, but the attachment device main body 44 is provided with a female screw 31, and a long support bolt 52 is fitted into this female screw 31, and the above-mentioned screw is inserted into the tip of this female screw 31. By attaching the exterior supporting material 53, it is also possible to carry out exterior work on the lightweight aerated concrete wall.

〔Effect of the invention〕

As is clear from the above description, the exterior support material attachment device according to the present invention attaches the exterior support material that supports the exterior panel by performing construction work from one side, which is the front side, of a lightweight aerated concrete wall. This has made it extremely easy to perform exterior work on lightweight aerated concrete walls.

In addition, since the exterior support material attachment device according to the present invention is installed across the lightweight aerated concrete wall, not only will the hook bolts not come off due to earthquakes or vibrations, but it will also prevent the hook bolts from coming off due to earthquakes or vibrations. Even when using a wall, the load is dispersed, so the wall no longer collapses during use.

[Brief explanation of the drawing]

FIG. 1 is a side view of an exterior support attachment device according to an embodiment of the present invention, FIG. 2 is a rear view of an exterior support attachment device according to the above embodiment, and FIG. 3 is an exterior support according to the above embodiment. FIG. 4 is a side sectional view showing how the exterior support material attachment device according to the above embodiment is used, and FIG. 5 is an exterior support material according to another embodiment of the present invention. side view of the mounting fixture;
FIGS. 6 and 7 are side sectional views of a conventional lightweight aerated concrete wall with exterior panels attached to the outside. [Explanation of symbols], 25, 43...Exterior support material attachment device, 26,44...Mounting device body, 27,4
6...Hook bolt, 28...Tightening nut, 2
9... Flange portion, 30, 45... Bolt insertion hole, 31... Female thread, 32, 47... Bent portion, 3
3... Notch, 35, 37... Lightweight aerated concrete wall.

Claims (1)

[Scope of Claims] 1. A mounting device main body having an oval cross section of a predetermined length, which is provided with a flange portion that comes into contact with the surface of the wall to be mounted at one end, and has a bolt insertion hole eccentrically formed inside; It is inserted into the bolt insertion hole, and the other end is bent in a range slightly shorter than the maximum length between the eccentrically formed bolt insertion hole and the outer peripheral surface of the oval cross section. An exterior support material mounting device comprising: a hook bolt that abuts the back surface of the wall and has a longer overall length than the main body of the mounting device; and a tightening nut that is screwed onto the hook bolt from one end. . 2 The other end of the hook bolt is bent at an approximately right angle, and the other end of the mounting device body has a notch into which the approximately right-angled portion of the bolt is fitted, which is connected to the bolt insertion hole and the outer peripheral surface with an oval cross section. The exterior support material attachment device according to claim 1, which is formed in a portion having a short distance. 3. The exterior support material attachment device according to claim 1, wherein the tip of the hook bolt is bent into a semicircular arc shape.