JPS6123521Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a built-in device for buildings that can be mounted from outside the formwork rationally and efficiently by being driven in from the inside of the formwork and temporarily fixed. .

Conventionally, as shown in Fig. 5, this type of building embedding device consists of an iron embedding device body 1 with a synthetic resin pedestal S having a flange f fitted at its tip, which is held inside the formwork. At the same time, a bolt B was screwed into the female screw hole T of the implant main body 1 from the outside via the pedestal S to attach it to the formwork F.

However, this method requires two workers, one inside and one outside the formwork, which is irrational.

Also, when tightening bolts, the main body of the embedding device must be held inside the formwork without resisting the rotational force of tightening the bolts. This makes the work time-consuming and inefficient.

This invention was made to eliminate the drawbacks of the conventional one, and its configuration and usage method are explained below.
This will be explained with reference to drawings of examples.

Fig. 1 shows a first embodiment of this invention, in which a male mounting screw 2 is screwed into the tip and a male connecting screw 3 is screwed into the rear end. The screw 2 has protrusions 4, 4' on the inside, a mounting rod 1 with a locking part 5 on the tip, an outward bulge 7 on the rear end, and a fitting hole in the center. A pedestal 6 with a stepped portion 8 at the tip opening of 9, and a mounting rod 1 at the tip.
The implant main body 10 includes a female screw 11 that is screwed into the male connection screw 3 of the implant body 10, and an anchor portion 12 at the rear end.

Figure 2 shows the state of use of the first embodiment, in which the mounting hole f of the formwork F is viewed from inside the formwork F
After driving the tip of the mounting rod 1 into the mounting hole f and inserting the protrusions 4 and 4' into the mounting hole f for temporary fixing, screw the nut N into the male mounting screw 2 of the mounting rod 1 that protrudes outside the formwork F. and attach it to formwork F. The pedestal 6 has a step 8
Because it is locked to the distal end surface of the implant main body 10, it does not shift backward. Next, after pouring and curing the concrete, unscrewing the nuts N and removing the formwork F,
By applying a wrench or the like to the locking portion 5 of the mounting rod 1 and turning it, the mounting rod 1 can be removed from the implant body.

Note that, for example, a connecting bolt at the tip of a wall connecting fitting can be screwed into the female screw hole 9 of the embedding device main body 11 to tightly connect the concrete frame and the scaffolding.

FIG. 3 shows a second embodiment of this invention, in which a male mounting screw 22 is screwed into the tip and a male connecting screw 23 is screwed into the rear end, and a protrusion near the tip. 24, 24', a mounting rod 21 having a locking part 25 at its tip, an outwardly protruding part 27 at its rear end, and passing through a fitting hole 29 along the axis. A female screw 211 is provided along the axis of the pedestal 26 and the tip thereof to be screwed into the male connection screw 23 of the mounting rod 21, and a small-diameter fitting hole 29 of the pedestal seat 26 is provided on the outer periphery of the tip. The implant main body 210 has a joint part 13 arranged in stages and an anchor part 212 at the rear end.

FIG. 4 shows how the second embodiment is used, and can be used in the same manner as the first embodiment to obtain the same effect.

In the second embodiment, the pedestal 26 can be prevented from shifting rearward due to the stepped portion between the body 210' of the implant main body 210 and the fitting portion 13.

According to the building embedding device of the present invention having the configuration and method of use as described above, it can be temporarily fixed to the formwork easily and reliably by driving it into the mounting hole of the formwork from inside the formwork. , Tightening work from the outside of the formwork can be easily done by one person.

Therefore, there is no need to hold the embedding device body inside the formwork, and one worker can rationally mount the embedding tool, thereby improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of the main part showing the first embodiment of the building embedded device of this invention, and FIG. 2 is a diagram of the same in use.
FIG. 3 is a longitudinal cross-sectional view of a main part showing a second embodiment of this invention, FIG. 4 is a diagram of the same in use, and FIG. 5 is a diagram of a conventional product in use. 1...Mounting rod, 6...Pedestal, 10...Embedded tool body, C...Concrete frame, F...Formwork, N...
...Natsuto.

Claims (1)

[Scope of utility model registration request] A mounting screw and a connecting screw are respectively screwed on the tip and rear ends, a projection is provided on the inside of the mounting screw on the tip, and a mounting rod is provided with a locking part on the tip. , an embedded device for buildings consisting of a pedestal having an outwardly bulging portion at the rear end and a fitting hole in the shaft center, and an embedding device body that is screwed into the connecting screw of the mounting rod via the pedestal. Ingredients.