KR950004478Y1 - Tying rod for forms - Google Patents

Abstract

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Description

Concrete Formwork Support and Spacing Area (FORM TIE)

1 is a perspective view of the present invention.

Figure 2 (a), Figure 2 (b) is a perspective view showing another embodiment of the present invention.

3 is an installation and use of the present invention.

Figure 4 is a form tie bolt dismantling and grouting state of the present invention.

5 is an enlarged partial view of (a) of FIG.

6 is a conventional form tie installation state diagram.

* Explanation of symbols for main parts of the drawings

1,1 ', 1' ': FORM TIE 2,2', 2 '': Iron wire coil

3,3 ': Iron wire tie 4,4': Plastic cap

5,5 ', 5' ': Through groove 6,6': Form tie bolt

A: Support corner wood B: Frame plywood

C: concrete

The present invention relates to a concrete formwork support and FORM TIE used in the manufacture of precast concrete when constructing concrete walls in various dry construction sites (apartments, buildings, houses, etc.). The inner wall to be left in the concrete wall or the form tie using nut coil steel coil (COIL) is used to match the wall thickness of the mold to the concrete, and the coil or tube and nut are measured by the concrete FORM TIE for supporting concrete formwork and for maintaining spacing.

In general, various ties (TIE) have been used to maintain the formwork spacing when constructing concrete walls in the construction site, but the most representative of them is as shown in FIG. 6, when installing the formwork plywood (B ') ) And the support angle wood (A ') is assembled together and the part of the tie 11, which is embedded with the concrete (C'), the threaded portion 12 is formed at the left and right ends to be combined with the cone 14 and the cone ( 14) is coupled to the inner screw portion and the form tie bolt (13), which is a screw connection is a two-part waste of manpower and time, there is a problem that can not blow the air due to a decrease in work efficiency. In addition, in Publication No. 88-6436 of the Korean Utility Model Publication, there is still a problem similar to that of screw connection.

The present invention is to directly connect the tire form tie bolts to complement the conventional problems as described above and to ensure a simple structure and also convenient to use, the following detailed description of an embodiment by the drawings attached to the present specification; As follows.

Looking at the configuration of the present invention, as shown in FIG. 1, the form tie 1 (or 1 ', 1' ') has a coil or a tube having a cylindrical through groove 5 (5,' 5 '') and The wire tie (3) (3 ') formed of a bar (BAR) shape formed by winding the nut (2) (2', 2 '') to a predetermined length and disposed at upper and lower sides so as to contact and be fixed at both ends thereof. Weld and fix on the outer surface of the iron coil 92 (or 2 ', 2' ') and fix the iron tie 3, 3' on the outer surface of the iron coil 2 (or 2 ', 2' '). It is welded and fixed to the left and right ends of the wire tie (3) (3 ') and the plastic cap (4) (4') is installed to protect it from moisture. Also, as shown in FIGS. 1 to 2 (a), 2 (b) and 3, the form tie 1 (or 1 ′, 1 ″) has a cylindrical through groove 5 and 5. Coils or tubes having a ', 5') and nuts 2 (2 ', 2' ') are symmetrically formed on the left and right sides and the outer surfaces of the coils or tubes and nuts 2 (2', 2 '') The ties (3) (3 ') having a constant diameter and length are aligned and supported so that they can be welded to each other, and then welded and fixed, wherein the ties are (3) (3') wires or tubes and nuts (2) (2). Weld installation so that it extends a certain length more than outer side of ', 2')

The tie (3) (3 ') welded up and down on the coil or tube and the nut (2) (2', 2 '') as described above is coupled to the plastic cap (4) (4 ') on both left and right ends. Let's do it.

Formed form (1) (or 1 ', 1' ') formed in this way is installed in conjunction with the support angle wood (A) and the mold plywood (B) and the coil or tube of the form tie (1) (1', 1 '') And a foam type bolt 6 having a predetermined length of thread 6 'in the outer surface through-grooves 5 (5', 5 '') of (2) (2 ', 2' ') of the nut. The thread 6 'of the form tie bolt 6 inserted into the outer side through-groove 5 of the coil 2 to be inserted and coupled at both sides is formed to fit the gap of the coil 2, and the tube and nut The thread 6 'of the form tie bolt 6, which is inserted into and coupled to the outer side through-grooves 5 and 5' and 5 " of the 2 ', 2 " It may be inserted so as not to protrude through the through grooves 5 (5 ', 5' ') of the', 2 ') and protrude into the shaft of the wire coil or tube and the nut 2 (2', 2 ''). .

As such, when the coupling between the coil or tube and the nut 2 (2 ', 2' ') and the form tie bolt 6 is completed, the washer 7 and the nut 8 for fixing the form tie bolt 6 are secured. To tighten the concrete formwork. The concrete (C) is poured between the mold plywood (B) of the concrete formwork completed as described above. At this time, the plastic cap (4) (4) coupled with the right and right ends of the iron tie (3) (9 ') welded to the upper and lower sides of the coil or tube and the nut (2) (2', 2 ''). The outer surface of ') can express the wall thickness of the concrete (C) by determining the concrete thickness (t) by adjusting the screw distance into the nuts (2, 2', 2 '') of the foam tie bolt (6). Coils or “tubes and nuts” (2 ', 2') are also designed to withstand the pressure buildup of concrete (C).

In this way, after the concrete (C) is finished and the concrete (C) is completely hardened, the concrete formwork is crushed. As shown in FIG. 4, the coils or tubes and nuts (1) (1 ', 1' ') of the form tie (1) are shown. 2) The through holes 5 and 5 'of the coil or tube and nut 2, 2' and 2 '' are connected to the form tie bolt 6 coupled to the left and right sides of the 2 'and 2' '. When the form tie bolt 6 is rotated counterclockwise when detached from (5 ''), the coil or tube and nut (2) (2 ') coupled with the thread 6' of the form tie bolt 6 Threads along the inner threads of the through grooves 5 (5 ', 5' ') of the through grooves 5 (5', 5 '') are gradually released along the side of the inner threads of the through grooves 5 (5 ', 5' '). It can be separated and separated.

A hole 9 is formed at the place where the foam tie bolt 6 of the hard concrete (C) portion of the separated portion is removed as described above. As shown in FIG. 5, the concrete C holes 9 are blocked. In addition, by forming a projection on the front surface of the plastic cap (4) (4 ') coupled to the left and right ends of the iron wire tie (3) (3') to prevent falling out when dismantling the concrete formwork, and the rain water seeps To prevent bleeding from the exposed concrete (C) walls.

In addition, when the handrail work separately to the grouting part, the anchor bores can be easily hung on the concrete hole part without grouting work, so that the part can be used without making holes in the wall when the handrail work.

As described in the above operation, the concrete formwork support and spacing form tie can easily remove the form tie bolt even after constructing the concrete wall, which shortens the working time, reduces the issue, reduces the cost, and Compared to the existing fine screw which is easy to break the bone, it is a very useful design that can be used for larger and large concrete constructions without increasing the number of reuses and increasing the number of reuses.

Claims (1)

Form tie (1) (1 ', 1' ') for holding and spacing the concrete strip is formed with a through groove (5) (5', 5 '') so that the form tie bolt (6) with its outer periphery is screwed together. Coil or tube and nut (2) (2 ', 2' ') formed on the left and right sides of the form support and spacing ties for forming the coil or tube and nut (2) (2'). And 2 '' welding wires of fixed lengths 3 and 3 'are fixed up and down on the outer circumferential surface, and plastic caps (4) are provided on left and right ends of the wire ties (3) and (3'). FORM TIE for supporting concrete formwork and maintaining gaps.