JPS5934370A - Hanging metal fitting apparatus - 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 [Technical Field of the Invention] The present invention relates to a metal cutting device used mainly for lifting various equipment used in elevators.

[Technical background of the invention]

In general, when hoisting various types of equipment used in elevators, a hanging bracket device is used that is buried and fixed in a retaining wall or ceiling slab at the end of the elevator hoistway of a building with a portion protruding from the bottom. A conventional example of this hanging bracket device is described in ff71jIt with reference to FIG. Bent molded 9mm hanging bracket 3
are fixed by welding, and in this state, a formwork panel 4 is provided below the center of the hanging fitting 3, in which an oblong hole 4a is formed through which a hook portion 3a protruding in a U shape passes through.

A filler 5 is provided in the oblong hole 4a of the formwork panel 4,
Concrete is poured to fill the upper side of the formwork panel 5 (excluding the two reinforcing bars 2... and the hook part 3a of the hanging fitting 3) to form the slab 1, and this forms the necessary parts for the hanging fitting 3. Only the hook portion 3a protrudes downward so that it can be used for hoisting various types of equipment.

[Problems with background technology]

In the device with the conventional structure described above, in order to make the hook part 3a of the hanging fitting 3 protrude downward, it is necessary to form an oblong hole 4a in the formwork panel 4 (C2. During pouring, it is necessary to provide a filler 5 to prevent the concrete from flowing out, which has the disadvantage of complicating preparations for slab construction.Furthermore, the hanging fittings 3 themselves also require a lifting load l (2). Since the pod diameter is appropriately selected and the pod is bent and formed manually, it is expensive and uneconomical (-1) It is quite long and requires handling during transportation etc.
It was troublesome to fix it to...

[Purpose of the invention]

This invention was made in consideration of the above-mentioned circumstances, and it is easy to embed and fix the slab, which makes the work of constructing a retaining wall or ceiling slab troublesome, and it is inexpensive and simple. Hanging fittings 8+! ! We will provide you with a place! The porpose is to do.

[Summary of the Invention] This invention provides a plate-shaped embedded metal fitting that is fixed onto the reinforcing bars of a retaining wall or a ceiling slab from a C2, such as a kitchen fitting, and a plate-shaped embedded metal fitting that is suspended by fixing the upper end to the embedded metal fitting so that the lower end part is suspended. The lower side of the retaining wall or ceiling slab (2) consists of a plurality of protruding stud bolts and a hanging bracket that is fixed with 1 nut at the lower end of these stud bolts (C), which is the lower formwork plate of the retaining wall or ceiling slab. By simply forming a round hole corresponding to the diameter of the stud bolt, no filling is required, making it easy to construct a slab (2. Buried construction). Moreover, since the above-mentioned construction work is simple and the cost is low, it is a highly practical hanging device that is economical and can reduce costs.

[Embodiments of the invention]

Retaining wall or ceiling slab of REIT structure (hereinafter simply referred to as slab), 12 is a reinforcing bar buried on the inside of the slab 11, and 13 is a formwork plate placed on the bottom surface of the slab 1. 11 (the suspended metal fitting device is a reinforcing bar) 2.°. A plate-shaped embedded metal fitting 14 is placed and fixed on top and buried in the slab concrete,
Attach the upper end to this embedded metal fitting 14 with a double nut 15.15
multiple stud bolts 16 fixed and suspended by
．． 16, and a -F side protrusion of this stud bolt 16.

More specifically, the embedded metal fitting 14 is made of an L-shaped copper plate, and has a length that allows it to be placed over the top of five reinforcing bars 12. 14a has a pair of bolt mounting holes 14b, 14b spaced apart from each other in the longitudinal direction thereof.
is formed.

In addition, the stud bolts 16, 16t/full length of the other side (two screws have been completely formed), and the upper end of each is connected to the embedded metal fitting I mentioned above.
By inserting the bolts into the bolt mounting holes 14 b and I 4 b of No. 4 and tightening them from above with double nuts 15 and 15, they are fixed in a hanging state (two fixed, and the F end of each is inserted into the round hole 13 m formed in the formwork plate 13). , 13m, and protrudes by an appropriate length from the lower side C2.The hanging bracket 18 shown in Fig. 3 is made by joining 18k to a pair of L-beams 18 back to back and finishing by welding. Overall C: T-shaped, with its upper horizontal flange 1
For 8m and 18m, use the above stud bolt 16.1.
Bolt holes 18b, 18b are formed in the lower end C of 6 for insertion, and hanging holes 111d, 18d are formed in the central hanging plate parts 18c, 18c on the left and right (two matching holes 111d, 18d).

Therefore, in the hanging metal device having the above-described configuration, the slab 11
Before pouring concrete, insert the upper ends of the stud bolts 16 and 16 into the mounting holes 14b and 14b at both ends of the horizontal plate portion 14m of the embedded fitting 14 using double nuts 15 and 1, respectively.
5 (With the second bolt tightened in a fixed state, the embedded fitting 14 is placed over the plurality of reinforcing bars 12... and welded, etc.) (positioned and fixed with the second bolt. In this state, Arranging the frame plate 13, round hole JJa of the frame plate 13,
JJai 2. Insert the lower ends of both of the above Nutatsu dobols L-16, 16 downwards (2 to protrude an appropriate length, and then later formwork L/-) JJ Upper C 2 Concrete pouring is carried out above. Slab 11 while embedding reinforcing bars 12..., embedded fittings 14, and stud bolts 16 and 16.
Build. After completely fixing the embedded metal fittings 14 and stud bolts 16.16 to the slab 11 (2), fit the hanging metal fittings 18 to the lower ends of both the protruding stud bolts 16.16 (2). Formwork play by tightening with double nuts 17.17)
Fix it so that it is in pressure contact with the I J '-F surface.

With the above steps, the installation work of the hanging metal device and the slab construction work can be completed, and at that time, there is no need for the troublesome work of forming an oblong hole in the formwork plate 11 and filling it, which is required in the conventional method. The diameter of the stud bolts 16, 16 (two corresponding round holes 13a).

As it is only necessary to form 13a, the slab construction work can be done easily and efficiently.This is a special hanging metal fitting device. Since it is sufficient to use processed nuts and L-shaped steel plates for cutting and drilling, the material cost is low and the overall cost can be reduced.

Furthermore, with the above-mentioned configuration, it is easy to change the length of the embedded metal fitting 14 according to the hanging load, change the stud bolts 16 to ones of different thickness, or increase the number of stud bolts 16. , it is possible to make it the most economical depending on the hanging load.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and for example, a hanging fitting 28 made of T-shaped steel may be used as the hanging fitting 18 as shown in FIG.

〔Effect of the invention〕

Since this invention is made as detailed above, it can be easily buried in a retaining wall or ceiling slab, and it can fully function as a hanging device.
In addition, it does not pose any troublesome problems to the slab construction work, and the material costs are low and economical, making it very convenient in practical terms.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional example, Figures 2 and 3 are examples of this @Ming. Figure 2 is a cross-sectional view with the hanging bracket removed, and Figure 3 is Completed drawing with hanging hardware fixed,
FIG. 4 is a front view of a hanging fitting showing a modification of the invention. 1, I)...Retaining wall or ceiling slab, 2.12...Reinforcement bar, 3...River metal fittings, 3g...Hook part, 4゜13
...Formwork plate, 4R...Oval hole, 13a...
・Round hole, 5...Filling, 14...Embedded metal fitting, 14m
...Horizontal plate part, J4b...Bolt additional hole, 15゜1
7... Nut, 16... Stud bolt, 18゜2
8... Hanging bracket, 18m... Flange part, 18b.
...Bolt hole, 18C...Central hanging plate part, 18d...
・Hole for hanging. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 1 @ Figure 3 Figure 4

Claims (1)

[Claims] Retaining wall or ceiling slab of reinforced concrete structure
In a hanging bracket device that is buried and fixed in a state that partially protrudes to the side, C2 welding, etc. on the reinforcing bars of the retaining wall or ceiling slab, etc.
A plate-shaped embedded metal fitting is fixed from two parts, and the upper end is fixed to this embedded metal fitting, so that the lower end part hangs down and the lower end is fixed to the above if.
A hanging metal fitting device comprising a plurality of stud bolts protruding below A+ or a ceiling slab (till), and a black metal fitting fixed by tightening nuts C2 to the lower ends of these stud bolts.