JPS63247444A - Bolt fixing method and bolt fixing device to lightweight cellular concrete boards, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method and bolt fixing device for fixing bolts to light-duty cellular concrete plates, etc. This is a method and fixture for fixing an object on a machine.

[Conventional technology]

Conventionally, the method for fixing an object to a transophthalmic foamed concrete IJ-i, etc. was to insert a sleeve and a nut in combination into a hole drilled in light-eating foamed concrete, etc., and then insert a bolt into the nut. Then, by moving the bolt to the nut part, the nut is fitted into the sleeve, the legs of the sleeve formed by the split grooves are expanded, and the lightweight foam concrete 1-
Temporarily fasten it inside the t& etc. Then remove the bolt and
The method used was to place the object to be mounted and screw the bolt into the nut to secure it.

However, according to this prior art, when temporarily tightening the sleeve and the nut, if the bolt is pulled out, the nut is pushed out by the elastic action of the legs, making it difficult to temporarily tighten the sleeve. To solve this problem, a proposal has been proposed in which the legs undergo plastic deformation, but there are problems with this, such as the fact that when the bolt is screwed into the T-nut and tightened, the nut spins around and is difficult to tighten. There was also a problem in that the sleeve and nut were easily uncoupled when inserted into the housing, making insertion difficult.

[Purpose of the invention]

The present invention is a lightweight cellular concrete 15 that can easily insert a bolt receiver, fix a realistic bolt receiver, and efficiently fix the object to be installed. The purpose of the present invention is to provide a bolt fixing method and a bolt fixing device to the like.

[Summary of the invention]

The present invention involves forming a hole in a light foam concrete IJ-1fi, etc., having a fixing flange at the end of the hole, forming a tapered front part, and appropriately forming a bead-shaped protrusion on the outer periphery. A bolt receiver made of synthetic resin with a threaded groove is inserted into the inner surface of the main body, which has split grooves formed on both sides with the tip left on the body. By hammering the inserted floating body toward the tip with a hammer operating tool, the floating body moves to the tip of the bolt receiver, and the fixed piece at the tip is cut off and forcibly expanded to open the bolt receiver. Light arsenic foamed concrete IJ-to board, etc., after fixing it in the drilled hole, placing the object to be installed, screwing the bolt into the bolt receiver, and fixing the bolt to the foamed concrete, etc. The bolt fixing method is to have a fixing flange at the end, the front part is tapered, and an appropriate number of ball-shaped protrusions are formed on the outer periphery, leaving the tip on the body and dividing grooves on both sides ( : A bolt receiver made of synthetic resin with two screw grooves provided on the inner surface of the formed main body, and a floating ball made of bullet-shaped synthetic resin with a plurality of protruding pieces on the end to be inserted into the bolt receiver. This bolt fixing tool consists of a body and a hammer operating tool for pushing the floating body.

[Embodiments of the invention]

Embodiments of the present invention will be described in detail below with reference to the drawings. First, use a drill or the like to drill a hole 13 in the translucent aerated concrete @12, approximately equal to the length of the bolt receiver 1, and place the floating body 8 with the protruding piece 15 protruding from the end thereof. In this case, the front part 2 of the bolt receiver 1 is tapered, so the hole 13 is drilled.
It can be inserted smoothly. Fixing flange 6 is drilled hole 1
The bolt receiver 1 is fixed by being engaged with the outer periphery of the inlet 3. After arranging the bolt receiver 1 in the drilled hole 13 in this manner, when the driving hammer operating device valve is brought into contact with the rear end of the floating body 8 and hammered with a hammer or the like, the floating body is moved to the bolt receiver 1. As shown in FIG. 2, the front part 2 is forcibly expanded by cutting off the fixing piece 16 at the tip. This has a split groove 4 on the front part 2.
is formed appropriately, so that the end portion 17 of the dividing groove 4
By expanding using the fulcrum as a fulcrum. The purpose of providing the fixing piece 16 at the tip of the bolt receiver 1 is to prevent the split groove 4 from expanding due to plastic deformation and distortion before construction, since the main body is made of synthetic resin. . The split groove 4 is the bolt receiver 1
It is possible to form the name of an era by cutting the diameter of the circle and providing two locations, but it goes without saying that three or more locations may be provided radially.

Since an appropriate number of bead-shaped protrusions 5 are formed on the outer periphery of the front part of the bolt receiver 1, as the front part 2 expands, these protrusions 5 bite into the inner wall of the drilled hole. As the protrusion 5 approaches the tip of the front part 2, the stress of expansion concentrates, and the proportion of wave force on the inner wall of the drilling hole is also received at a greater rate. Delicious. Furthermore, the bead-shaped sills are intended to make it easier to penetrate into the lightweight aerated concrete suction 12, and by making them umbrella-shaped, it is possible to further prevent them from falling off. In this way, the bolt receiver 1 is fixed within the drilled hole 13. In other words, the fixing force is exerted not only in the longitudinal direction of the bolt receiver 1 but also in the outer circumferential direction, but when the bolt 9 is screwed in, the bolt receiver 1 is In order to completely prevent rotation in the outer circumferential direction, it is effective to form a vane-like protrusion 10 at the base of the bolt receiver 1 as appropriate. Although it is sufficient to provide two diametrical locations, it goes without saying that three or more locations may be provided radially. This wing-like projection 10 is formed by a fixing collar portion 6.
Needless to say, this will strengthen the

After the bolt receiver 1 is completely embedded and fixed in the drilled hole in this way, the attachment object 11 is placed and the bolt 9fj!
0: Screw into the bolt insertion lower, introduce into the screw groove 14, and tighten to fix. Since the conventional process of temporary fixing of the bolt receiver 1 is not required, it is possible to fix the attachment object 11 by quickly and efficiently inserting the bolt.

As a result, production efficiency is extremely high and costs can be reduced. In addition, the end of the floating body 8 (= protruding piece 15 is provided)
This is to prevent the protruding piece 15 from falling off when it is housed in the screw groove 14. Past practice has shown that there is no problem in terms of strength, durability, and workability even when the structure is made of synthetic resin. The fact that it does not cause damage due to corrosion is that it corrodes better than metal materials.

〔Effect of the invention〕

As described above, according to the present invention, the bolt receiver can be easily inserted into the drilled hole, the bolt receiver can be securely fixed in the drilled hole without the need for temporary fixing work, and the bolt receiver can be prevented from idling. It is now possible to provide a bolt fixing method and a bolt fixing tool to lightweight aerated concrete plates, etc., which can prevent and achieve steady bolt screwing.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the entire bolt screw insertion tool. FIG. 2 is a side view showing the state in which the bolt receiver is fixed in the drilled hole. Third
The figure is a side view of the floating body. Figure 4 is a construction drawing of the bolt receiver. In the figure 1: Bolt receiver 2: Front part 3: Main part 4: Split groove 5: Protrusion 6: Fixing flange 7: Bolt insertion hole 8: Floating body 9: Bolt 10: Wing-shaped protrusion 11: Installation purpose Object 12: Camping aerated concrete 13: Drilling hole 14: Screw groove 15: Projecting piece 16: Fixed piece 17 Divided groove end 18: Drilling difference operation tool

Claims (2)

[Claims] (1) Drill a hole in a lightweight aerated concrete plate, etc., have a fixing flange at the end of the hole, form a tapered front part, and form an appropriate number of bead-shaped protrusions on the outer periphery, A bolt receiver made of synthetic resin with a threaded groove is inserted into the inner surface of the main body, which has split grooves on both sides with the tip left in the body, and is inserted into the bolt receiver main body. By driving the floating body toward the tip with a hammer operating tool, the floating body moves to the tip of the bolt receiver, and the fixed piece at the tip is cut off and forcibly expanded to drill a hole in the bolt receiver. A method for fixing bolts to a lightweight aerated concrete plate, etc., characterized in that after fixing the object to the lightweight aerated concrete plate, etc., the object to be attached is placed, the bolt is screwed into the bolt receiver, and the bolt is fixed to the lightweight aerated concrete plate, etc. (2) The main body has a fixing flange at the end, has a tapered front part, has an appropriate number of bead-shaped protrusions on the outer periphery, and has split grooves on both sides, leaving the tip on the body. A bolt receiver made of synthetic resin with a screw groove provided on the inner surface of the bolt receiver, a bullet-shaped floating body made of synthetic resin with a plurality of protruding pieces on the end to be inserted into the bolt receiver, and the floating body A bolt fixing device comprising: a hammer operating tool for pushing the bolt;