JP2984260B1 - Clearance seal structure in concrete formwork - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To set a height of a shielding piece protruding from a mounting portion to a gap to a height obtained by adding a compression allowance to a maximum dimension on a plus side of the variation of the gap and to increase the gap to a plus side. Even if it is large, it is surely sealed by a shielding piece, and a packing for a gap having a variation without mortar or the like entering between two members is provided. SOLUTION: When two members are arranged with a gap that varies, the packing is a seal that seals the gap by utilizing elastic deformation of a material, and the packing 13 is attached with an elastic material such as rubber. The part 13a and the shielding piece 13b are integrally formed, and the mounting part 13a is fitted into a groove 14 provided on a surface corresponding to the gap of the one member 2, and the shielding piece 13b is formed.
Is set to the height obtained by adding the compression allowance to the maximum dimension of the variation of the gap 4 on the plus side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a concrete formwork.
Gap seal structure. For details, see the core and embedded hardware
Suitable for sealing gaps that vary between
Related to a sealed structure.

[0002]

2. Description of the Related Art Conventionally, a core and a concrete
Even when the two members of the embedded metal member are arranged with a gap that varies, an O-ring is exclusively used to seal the gap, and the O-ring 15 is as shown in FIG. It is formed in a circular cross section, and more than half thereof is fitted into the groove 17 provided on one member 16, and the other half or less is compressed into the gap 18 by the other member 19, and the tip is compressed by the other member 19. It seals the gap.

Therefore, even if the member 19 outside the gap 18 is inaccurate, such as an as-cast product, and the gap 18 between the member 16 and the other member 16 varies, the variation on the minus side is as shown in FIG. There is no problem as shown in the figure. However, if the variation on the positive side is large, as shown in FIG.
There is a problem that a gap 20 is formed between the ring 15 and the member 19 and mortar or the like enters between the two members 16 and 19.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems , the present invention has been made to improve the thickness and height of a shielding piece in a packing.
To be easily inserted into gaps
In addition, even if the variation of the gap is large on the plus side, the concrete formwork that securely closes the gap and prevents mortar or the like from intruding between the core and the embedded metal.
To provide a gap sealing structure .

[0005]

In order to solve the above-mentioned problems, a gap seal in a concrete formwork according to the present invention is provided.
The structure adopts the following configuration. Con
A mold for forming cleat products.
The deposit is mounted so that a part of it is superimposed,
In the overlap between the core and the embedded metal, there is a gap
Cores or implants where there is a gap
At the part corresponding to the gap of the object, the groove along the gap is formed
And a shielding piece of a packing formed with the mounting portion fitted in the groove.
However, the thickness is slightly smaller than the standard size of the gap, and the height is
At the height where the compression allowance is added to the maximum size of the gap variation
It is formed and can reliably seal gaps with variations
It is.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Concrete according to the present invention will be described below.
An embodiment of a gap seal structure in a mold will be described with reference to the drawings.

[0007] In the drawing, reference numeral A is a concrete form in which two members having gaps having variations are arranged. In this concrete form A , a core 2 is fixed on a surface plate 1 as shown in FIG.
Recessed hardware 5 causing the gap 4 which mortar from entering mounted between the part and the core 2 by entering contents of. Then, in order to attach the core 2 and the embedded metal member 5 to the mold A, through holes 6, 7, 8 are provided in a portion where the side frame 3, the core 2, and the embedded metal member 5 overlap, and these through holes are provided. A positioning shaft 9 is inserted through the outer frame 6, 7, 8 from outside the side frame, and a female screw 10 provided at the inner end thereof is screwed into a nut 11 fixed to the core 2, and the nut 11 and the positioning shaft 9 are provided. The side wall 3, the core 2, and the embedded hardware 5 are sandwiched between the flange 12 and the flange 12.

In FIG. 1, reference numeral 13 denotes a packing for sealing the gap 4 formed between the core 2 and the metal fitting 5. The packing is made of synthetic rubber having excellent elasticity. Then, the configuration includes a mounting portion 13a to be fitted in Sowase the gap 4 into the groove 14 provided in the portion corresponding to the gap 4 as core 2 shown in FIG. 2, or the attaching portion 13a
And a shielding piece 13b projecting from the
Therefore, the thickness of the shielding piece 13b is set to be slightly thinner than the standard dimension of the gap 4, and the height is smaller than the maximum dimension on the plus side of the variation of the gap 4 by the compression allowance of the shielding piece 13b. Set it to be higher. In this case, since the embedded metal member 5 is an inaccurate product such as an as-cast product, the portion facing the gap 4 is uneven, and the width of the gap 4 has a considerable variation between the minus side and the plus side. However, even if the variation is large toward the minus side, the shielding piece 13b set at the above-mentioned height contacts the member 5 to seal the gap 4 as shown in FIG. Also, as shown in FIG. 6, the gap 4 is closed by contacting the member 5 so that mortar or the like does not enter between the core 2 and the embedding member 5 .

[0009]

As described above, the concrete concrete according to the present invention is used.
The clearance seal structure in the mold form is a product where the embedded metal is as-cast
Etc., the dimensions may vary.
Also, the shielding piece is easily inserted into this gap, and
Even if the variation is large on the plus side, make sure that the gap is tight.
It is closed so that mortar or the like does not enter between the core and the embedded metal object.

[Brief description of the drawings]

FIG. 1 shows a gap sheet in a concrete formwork according to the present invention.
1 is a vertical sectional front view showing an embodiment of a screw structure .

FIG. 2 is a front view showing an arrangement state of a core and an embedded metal part in the same formwork.

FIG. 3 is a front view showing an example of a packing suitable for a gap having variation.

FIG. 4 is a partial cross-sectional view of a part showing a state in which the packing is attached to a core .

FIG. 5 is a partial longitudinal sectional view showing a state in which the shielding piece of the packing seals a portion where the variation of the gap is large on the minus side.

FIG. 6 is a partial longitudinal sectional view showing a state where the shielding piece of the packing seals a portion where the variation of the gap is large to the plus side;

FIG. 7 is a partial vertical front view showing a state where a conventional O-ring is attached to one member.

FIG. 8 is a longitudinal sectional side view of a part showing a state in which a portion where the variation of the gap is large on the minus side in the conventional packing is sealed.

FIG. 9 is a longitudinal sectional front view of a part of a conventional packing in which a portion where the variation of the gap is large to the plus side is not sealed.

[Explanation of symbols]

2 core 4 gap 5 embedded metal 13 packing 13a mounting part 13b shielding piece 14 groove

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) E04G 9/10 104 E04B 1/68 B28B 7/00

Claims (1)

(57) [Claims] 1. A mold for molding a concrete product.
So that the core and the embedded metal partly polymerize inside
It is mounted, and the dimension is
In the case where there is a gap with variation in the core, or the part corresponding to the gap of the embedded hardware,
A groove is formed along the gap, and the thickness of the packing shielding piece in which the mounting portion is fitted in the groove is reduced.
A little thinner than the standard size of the gap, and the height is
To the height where the compression allowance was added to the maximum dimension on the plus side with
It is formed and can reliably seal gaps with variations
Gap in concrete formwork characterized by the fact that
Inter-seal structure.