JPH076357Y2 - Formwork mounting structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold mounting structure, and more particularly, to a mold mounting structure using a wooden or similar panel.

[0002]

2. Description of the Related Art Generally, a wooden frame made of veneer plywood or the like is widely used as a mold used for driving concrete in view of cost and easy handling. The mold is configured such that a pair of panels are spaced by a mold receiving member called a separator or a cone, the shaft of the separator or the cone is inserted into a through hole formed in the panel, and a mold is formed on the shaft. The frame clamp is screwed on. In addition, when attaching the separator or the like to a panel, there are many cases in which two workers cooperate to prevent rotation before and after the panel. However, a cone or separator is provided with a protruding piece so that the protruding piece can be bitten around the through hole formed in the panel so that one person can work without the need for the above rotation stopper. There is.

[0003]

However, if a cone or separator having the above-mentioned protruding piece is used, the periphery of the through hole collapses and the diameter increases, which is not suitable for reuse. Further, since a cone without a protruding piece is also required, it is necessary to prepare a large variety of products, and the management of parts is complicated. The present invention was developed in view of the above, and an object of the present invention is to provide a structure for attaching a formwork, which allows the panel to be reused and can be operated by one person.

[0004]

In order to achieve the above object, the present invention provides an internal structure of a formwork, wherein a pair of opposed panels are held at predetermined intervals by separators having formwork receiving members near both ends. A flange is provided on the large-diameter side end of the cylindrical body having a tapered hole, a plurality of slits are provided on the small-diameter side end, and a retaining means is provided on the outer peripheral surface of the cylindrical body to allow elastic deformation. A sleeve made of a synthetic resin was fitted into a through hole formed in one panel, and the shaft of the form receiving member or the separator was inserted into the tapered hole of the sleeve from the large diameter side.

[0005]

The tubular body of the sleeve fitted in the through hole of the panel is expanded by the shaft of the form receiving member or the separator which is inserted into the tapered hole, and the retaining means is brought into close contact with the inner surface of the through hole so that the panel The sleeve and the frame receiving member or the separator are integrated.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a schematic sectional view showing a disassembled state, and FIG. 2 is a half sectional view of a sleeve 1 used in the present invention. The outline of the mounting structure of the formwork according to the present invention is as follows.
a, 2b and the panel 2a, 2b, in order to maintain a predetermined interval, a separator 4 for mounting the formwork receiving members 3a, 3b at both ends, and a sleeve fitted in the through hole 5 of one panel 2a. 1 and.

The sleeve 1 is an elastically deformable member and is integrally formed of synthetic resin, for example. As shown in FIG. 2, this sleeve 1 is provided with retaining means 8 on the outer peripheral surface of a cylindrical body 7 having a tapered hole 6 therein, and
It is configured by providing a flange 9 at one end.

The tapered hole 6 has a large diameter at one end, that is, on the side where the male screw shaft 10 of the frame receiving member 3a is inserted, and the flange 9 is provided on the large diameter side of the tapered hole 6. The inner diameter of the tapered hole 6 on the large diameter side is
It is equal to or slightly larger than the outer diameter (for example, 8φ) of the male screw shaft 10 of the mold frame receiving member 3a. on the other hand,
The inner diameter on the other end side, that is, the small diameter side is smaller than the outer diameter of the male screw shaft 10 of the form receiving member 3a (for example, 6φ). The male screw shaft 10 is, for example, insert-molded or screwed to the frame receiving members 3a and 3b.
A concave portion 11 is formed on the surface in contact with a and 2b.

The outer diameter of the cylindrical body 7 is slightly smaller than that of the through hole 5 (for example, 12φ) formed in the panel 2a.
The length of the tubular body 7 is about 13 mm, which is slightly longer than the thickness of the panel 2a (for example, 12 mm). The wall thickness of the flange 9 is, for example, about 1 mm.

The retaining means 8 formed on the outer peripheral surface of the cylindrical body 7 has, for example, the tip side, that is, the small diameter side of the tapered hole 6 is reduced in diameter to be inclined, and the flange 9 side is approximately the flange 9. It is erected in parallel and formed as a retaining ring 12 having a substantially wedge-shaped cross section. According to the illustrated embodiment, the retaining ring 12a and the second retaining ring 12b are configured in two stages. There is.

Further, at a proper position on the tip side of the cylindrical body 7, a plurality of slits 13 are provided from the tip toward the flange 9 side.
To provide. In the illustrated embodiment, two slits 13 are provided in the diametrical direction up to the rear of the second retaining ring 12 at the rear stage.

The formwork mounting structure according to the present invention uses the sleeve 1 having the above-described structure. The construction method will be briefly described below.

First, the sleeve 1 is fitted into the through hole 5 of the one panel 2a. At this time, the flange 9 is arranged so as to be located on the concrete driving side.

Next, the form receiving member 3a is attached to the tapered hole 6 of the sleeve 1 fitted to the panel 2a from the flange 9 side, that is, the concrete driving side. According to the present invention, one worker can sufficiently perform the mounting of the form receiving member 3a and the subsequent work. That is, when the male screw shaft 10 of the mold frame receiving member 3a is inserted into the tapered hole 6 of the sleeve 1, the cylindrical body 7 is elastically deformed, so that the cylindrical body 7 is expanded from the slit 13, and the double retaining ring serving as the retaining means 8 is provided. 12a and 12b elastically deform and come into close contact with the inner peripheral surface of the through hole 5 of the panel 2a. At this stage, the male screw shaft 10 of the mold receiving member 3a protruding from the panel 2a is attached to the mold clamping member 1
4 may be screwed on.

In this state, the through hole 5 of the panel 2a
The sleeve 1 and the frame receiving member 3a are integrated, and the separator 4 is attached to the female screw portion 15a of the frame receiving member 3a.
Even if the male screw portion 16 is screwed, the form receiving member 3a does not rotate. Therefore, one worker can fully work. In addition, before the separator 4 is screwed, the rebar work and the like are completed.

Then, the male screw shaft 10 of the other mold frame receiving member 3b screwed to the other end of the separator 4 screwed to the former frame receiving member 3a is inserted into the through hole 5 of the other panel 2b facing. Through
A mold clamping member 14 is screwed onto each of the male screw shafts 10 to form a mold.

After the normal placing and curing of concrete is completed, the panels 2a and 2b are reversed by the procedure reverse to the above.
Etc. should be removed. At this time, the panel 2a on the side where the sleeve 1 is fitted can also be peeled off in the state where the sleeve 1 is fitted in the through hole 5. That is, when the panel 2a fitted with the sleeve 1 is peeled off, the retaining rings 12a and 12b serving as retaining means 8 act like a wedge on the through hole 5 to prevent the retaining rings 12a and 12b from passing through. The frictional force with 5 overcomes the frictional force with the taper hole 6 and the male screw shaft 10, so that the panel 2a and the sleeve 1 are separated from each other. Therefore, if necessary, remove the sleeve 1
Alternatively, it can be reused while being fitted. Moreover, unlike the conventional case, the protruding piece is not bitten into the periphery of the through hole 5, and conversely, the through hole 5 is protected by the sleeve 1, so that the through hole 5 can be formed even if the panels 2a and 2b are repeatedly used. It will not be damaged and can contribute to the reuse of resources.

In the above description, the case where the sleeve 1 is fitted in the through hole 5 of the panel 2a has been described, but the sleeve 1 can be fitted in the panel 2b side, and each member is common to the left and right.

Although the present invention has been described above with reference to the embodiments shown in the drawings, the present invention is not limited to the above-mentioned embodiments, and can be appropriately implemented without changing the configuration described in the scope of claims for utility model registration. . For example, in the illustrated embodiment, the form receiving member is shown separately from the separator,
You may use what used the formwork receiving member previously formed in the separator. Further, although the cone-shaped mold receiving member is shown, the mold receiving member may have any shape such as a washer, a plate nut shape, or a cup shape.

[0020]

In summary, according to the present invention, in a mounting structure of a form in which a pair of opposed panels are held at predetermined intervals by separators having form receiving members near both ends, a cylindrical body having a tapered hole inside is formed. A flange is provided at the end on the large diameter side, a plurality of slits is provided at the end on the small diameter side, and a sleeve made of elastically deformable synthetic resin is provided on the outer peripheral surface of the cylindrical body, the sleeve being made of elastically deformable resin. Since it was fitted in the through hole opened in the panel of, and the shaft of the form receiving member or the separator was inserted from the large diameter side into the tapered hole of the sleeve,
An auxiliary worker holding down the frame receiving member and the like to prevent rotation is unnecessary, and one worker can fully work. Moreover, unlike the conventional form receiving member or separator, the protruding piece is not digged into the panel, so that the through hole is not damaged and the panel can be repeatedly used, which reduces cost and saves resources. It can contribute to effective use. Further, it is not necessary to prepare the one with the protruding piece and the one without the protruding piece as in the conventional case, so that the parts management at the site is easy. Moreover, it can be applied to form receiving members of any shape, and is of high practical value.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a disassembled state.

FIG. 2 is a half sectional view of a sleeve.

FIG. 3 is a cross-sectional view showing a state in which a sleeve is fitted in a through hole of a panel and a form receiving member is attached to the sleeve.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sleeve 2 Panel 3 Form receiving member 4 Separator 5 Through hole 6 Tapered hole 7 Cylindrical body 8 Retaining device 10 Male screw shaft

Claims (1)

[Scope of utility model registration request] 1. A large-diameter side end portion of a cylindrical body having a tapered hole in a mounting structure of a formwork in which a pair of opposing panels are held at predetermined intervals by separators having formwork receiving members near both ends. An elastically deformable synthetic resin sleeve provided with a flange, a plurality of slits at the end on the small diameter side and retaining means on the outer peripheral surface of the tubular body is provided on one panel. A mounting structure for a form, which is fitted in a hole, and through which a shaft of a form receiving member or a separator is inserted from the large diameter side into the tapered hole of the sleeve.