JPS5813133Y2 - Bolt's lightweight foam concrete anchor - Google Patents

Description

[Detailed description of the invention] This invention relates to an anchor that can be bolted to lightweight aerated concrete (hereinafter referred to as ALC).

With the recent spread of ALC, the demand for anchors for attaching various building materials to ALC is increasing considerably, but they are inexpensive, easy to install, and can be firmly fixed and held against shock and vibration. There aren't many things.

This invention proposes an afan car for Bolt's ALC that improves the above-mentioned problems.

As shown in the drawing, the anchor 1 of this invention includes a cylindrical body 3 that is screwed into and fixed to the ALC 2, and a knurled round nut 5 that is installed in an inner hole 4 that is concentric with the center line of the body. , and its cap 6, and the bolt 8 that fixes the object (for example, building material 7) is screwed to the round nut 5, and the main body 3 is fixed to the ALC 2.
The mechanism is such that building materials are attached to the ALC via the ALC.

The cylindrical main body 3 is made of a synthetic resin such as nylon, and a triangular screw 10 is spirally installed at a coarse pitch on the outer peripheral surface, leaving the tip 9, and the tip of the female screw 10 is opposed to the tip of the triangular screw 10. A discharge hole 12 penetrating toward the center of the main body 3
to be drilled.

The inner hole 4 is formed by concentrically connecting a head hole 13 and a tip hole 14 at a step 15, and a screw tool 16 with a square cross section is inserted from the head side into the head hole 13 to align the main body 3 along the center line. It has a hole shape with outwardly bulging corners of a rectangular shape that can be screwed and rotated in any direction.

Further, the tip hole 14 has a round cross section with a larger diameter than the head hole 13.

The distance between the stepped portion 15 and the discharge hole 12 in the tip hole 14 is determined by the knurled round nut 5 and the tip-shaped cap 6.
The length is sufficient so that the discharge port 12 will not be blocked when the two are inserted and fitted in series.

The round nut 5 has an outer diameter equal to the inner diameter of the tip hole 14,
The knurling outer surface and the hexagonal thread 17 of the bolt 8
The cap 6 is made of synthetic resin and has the same outer diameter as the round nut 5.

Note that the hole shape of the head hole 13 is not limited to the illustrated rectangular shape with bulged corners, and the bolt 8 can be inserted therein.
As long as the screw-in tool 16 can be inserted and rotated, it is also possible to use a hole similar to an equilateral triangle, for example.

In order to attach the building material 7 to the ALC 2 using the anchor 1 of this invention, a pilot hole 11 with a diameter slightly smaller than or the same diameter as the main body 3 and deeper than the length thereof is bored in the ALC with a drill 18.

FIG. 2 shows this state. Then, the round nut 5 and the cap 6 are pushed into the tip hole 14 from the tip of the main body 3 until they come into contact with the stepped portion 15 to be attached.

While inserting this main body 3 into the pilot hole 11 of the ALC as shown in FIG. 10' is moved forward in the center line direction while cutting, and the head part 1 is buried in the prepared hole 11 so that it sinks into the ALC surface.

The coarse pitch and triangular screw shape make it possible to quickly and easily cut and secure screws.

ALC2 shavings 1 generated during this screwing work.
9 is accommodated in the tip hole 14 from the discharge hole 12, but the cap 6 prevents it from entering into the round nut 5.
It does not interfere with bolt screwing work or functionality.

After fixing the anchor to ALC2 in this way,
As shown in FIG. 4, the bolt 8 is inserted into the head hole 13 of the main body 30 through the building material 7, and the bolt 8 and round nut 5 are tightly screwed together while rotating the driver 20.

By changing the driver 20 and the 80 bolts, any bolt 8 with a hexagonal or square head other than the top shown can be used.

The round nut 5 screwed together as described above is prevented from moving in the circumferential direction by the stepped portion 15 in the center line direction and by the notches on the outer peripheral surface, so the building material 7 is securely and firmly fixed to the ALC 2. Retained.

As mentioned above, the anchor of this invention can securely and easily fix bolts to the ALC at low cost.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the parts constituting the anchor of this invention.
Figures 2, 3, and 4 are explanatory diagrams of the construction of the anchor of this invention. Figure 2 shows the pilot hole being secured, Figure 3 shows the anchor body installed, and Figure 4 shows the bolt installation. is a cutaway front view illustrating the state. In the diagram, 1... Anchor 2... ALC
, 3...Main body, 4...Inner hole, 5...
...Maru Natsuto, 6...Cap, 7...
...Building material, 8...Bolt, 9...Tip, 10.10'...Screw, 12...
Discharge hole, 13... Head hole, 14... Tip hole, 15... Step, 16... Screw-in tool, L...・Center line.

Claims (1)

[Scope of utility model registration request] A triangular male thread 10 is provided around the outer peripheral surface of the cylindrical main body 3, leaving the tip 9, and a discharge hole 12 is bored opposite to the tip of the triangular male thread to penetrate into the inner hole 4 of the main body. At the same time,
The inner hole 4 has a head hole 13 into which a screwing tool can be inserted;
A tip hole 14 having a larger diameter than the head hole is concentrically connected by a stepped portion 15, and a knurled round nut 5 and a tip-shaped cap 6 are located deep inward from the position where the discharge hole 12 of the tip hole 14 is bored. An anchor for lightweight aerated concrete with a bolt inserted into it.