JP4382946B2 - Mounting bracket used for lightweight wall material made of foamed concrete - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mounting bracket used for a lightweight wall material made of foamed concrete.
[0002]
[Prior art]
As shown in FIG. 4 of Japanese Utility Model Publication No. 7-6307 and FIG. 3 of 62-604, the conventional anchor is used by drilling a part of the wall material with a drill and driving into the drilled part. Is.
[0003]
[Problems to be solved by the invention]
Ordinary concrete wall materials are strong, and there is no possibility that the anchor driving portion will be damaged even if a conventional anchor is driven to support a scaffold or the like. However, when the wall material is a lightweight wall material such as foamed concrete, if it is placed in the perforated part up to the middle of the wall material like a conventional anchor, the surrounding area (especially the lower side) of the anchor is damaged due to insufficient strength. Therefore, there is a danger that the anchor may fall off.
[0004]
BACKGROUND OF THE INVENTION
In view of the above, an object of the present invention is to provide a mounting bracket that does not fall off even when used for a lightweight wall material made of foamed concrete.
[0005]
[Means for Solving the Problems]
The object of the present invention is achieved by the following configurations.
1. Tip head is placed in the female screw and the proximal side to side shaft rod has a total thickness of length less the length of the wall material to attempt to install, the head-side outer periphery of the shaft rod An anchor having protrusions on the surface;
It consists of a fixing metal fitting that has a male screw that engages with the female screw on the tip side of the anchor, a collar part, and a fixing part in this order,
The tip end side female screw of the anchor is provided in a portion other than the protrusion provided,
A hole having a diameter corresponding to the anchor diameter is drilled over the entire thickness of the lightweight wall material made of foam concrete, and the anchor is driven into the drilled portion from the side opposite to the side where the fixing bracket is attached. The male screw of the fixing bracket is screwed into the female screw provided at a portion other than the tip of the anchor and the protrusion.
The wall material is clamped and clamped between the flange portion of the fixing bracket and the head of the shaft rod, and a fixed object such as a scaffold can be fixed to the fixing portion. Mounting bracket used for lightweight wall materials.
[0006]
2. 2. The mounting bracket according to 1, wherein the protrusion is a plurality of ridges having a triangular cross section provided around the base of the shaft rod.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, the anchor 10 according to the present invention is attached over the entire thickness of a lightweight wall material 20 made of foamed concrete. At the time of attachment, a hole is drilled at a specified position of the wall material 20 in the same manner as a conventional anchor.
[0008]
As shown in the figure, the provision of the female screw 13 on the protruding end side of the shaft rod 11 is the same as that of the conventional anchor, but the feature is that the protruding portion 14 is disposed around the base portion of the shaft rod 11. Is a point.
[0009]
In the embodiment of FIG. 1 , the four protrusions 14 are arranged on the circumferential portion of the shaft 11. However, the number of the protrusions 14 may be one, two, three, or more than four. Many configurations are possible. Moreover, although the cross-sectional shape of the protrusion 14 is a triangle, it may be square or circular. In short, when attaching the fixing bracket 21 such as a scaffold to the anchor 10, the protrusion 14 Any configuration that functions so that the shaft rod 11 does not rotate freely due to the presence thereof may be used.
[0010]
The length of the protrusion 14 may be about 20 mm when the length of the shaft 11 is about 75 mm, but this requirement is not limited. Of course, the mode of disposing the shaft rod 11 over the entire length is not excluded.
[0011]
In order to attach the anchor 10 according to the present invention to the wall member 20, first, a drill 30 having a diameter corresponding to the diameter of the anchor 10 is made by a drill over the entire thickness of the wall member 20, and a fixing metal fitting is formed in the hole 30 portion. The anchor 10 is driven from the side opposite to the side to which 21 is attached. Since the protrusion 14 is prepared by this driving, the wall rod is bitten beyond the perforated 30 portion, so that the shaft 11 is prevented from freely rotating (turning). Therefore, when attaching the fixing bracket 21 to the anchor 10, the operator does not need to press the portion of the anchor 10, and it can be a so-called one artificial operation. If the shaft 11 rotates freely, an assistant to prevent this must be prepared on the other side of the wall material 20, which is a two-artificial operation. The fixing bracket 21 has a flange portion 22 that can clamp and hold the wall member 20 between the fixing bracket 21 and the head portion 12 of the shaft 11 .
[0012]
【The invention's effect】
According to the mounting bracket according to the present invention, even if it is used for a weak wall portion made of foam concrete, it is mounted over the entire thickness of the wall material, so that the surroundings of the mounted anchor are prevented from being damaged. Is possible. Further, since the free rotation is prevented by the presence of the protruding portion, there is an advantage that one artificial work can be performed, and the above-described problems are solved.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view (A) showing an embodiment of an anchor according to the present invention, and a cross-sectional view along line BB (B).
[Explanation of symbols]
10-anchor 11-shaft bar 12-head 13-female screw 14-projection 20-wall material 21-fixing bracket 22-hook 30-drilling

Claims (2)

Tip head is placed in the female screw and the proximal side to side shaft rod has a total thickness of length less the length of the wall material to attempt to install, the head-side outer periphery of the shaft rod An anchor having protrusions on the surface;
It consists of a fixing metal fitting that has a male screw that engages with the female screw on the tip side of the anchor, a collar part, and a fixing part in this order,
The tip end side female screw of the anchor is provided in a portion other than the protrusion provided,
A hole having a diameter corresponding to the anchor diameter is drilled over the entire thickness of the lightweight wall material made of foam concrete, and the anchor is driven into the drilled portion from the side opposite to the side where the fixing bracket is attached. The male screw of the fixing bracket is screwed into the female screw provided at a portion other than the tip of the anchor and the protrusion.
The wall material is clamped and clamped between the flange portion of the fixing bracket and the head of the shaft rod, and a fixed object such as a scaffold can be fixed to the fixing portion. Mounting bracket used for lightweight wall materials.   2. The mounting bracket according to claim 1, wherein the protrusion is a plurality of ridges having a triangular cross section provided around the base of the shaft rod.

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