KR100633347B1 - A bar for having the cutoff-slot, and an apparatus for forming the form of having it - Google Patents

Abstract

The present invention relates to a form fastener, and more specifically, one side of the Sepha Tie-shaped Sepha Tie portion is formed can be fixed and fastened to the formwork plate, the support is formed in the middle of the incision groove is cut by the rotation of the fixture, and this Using a support, it can be easily fastened to the formwork plate, and relates to a formwork fastener that can be easily dismantled.

According to the present invention, the die fastener can simplify the function of various conventional parts to produce a support in a single process, and thus can be produced simply and easily, thereby improving productivity and reducing the consumption of parts. In addition, when dismantling the formwork, since the support is not attached to the formwork, the thickness of the support can be made thick, so that the cement finishing work on the part where the concrete is not poured after the concrete is laid neatly However, even if time passes, there is a merit that there is little defect of cement finishing work.

Incision, Cutting,

Description

A support formed with an incision groove cut by rotation and a form fastener including the same {A BAR FOR HAVING THE CUTOFF-SLOT, AND AN APPARATUS FOR FORMING THE FORM OF HAVING IT}

1 is a state diagram used in the conventional form fastener.

Figure 2 is a state of use when disassembling the conventional formwork fasteners.

Figure 3 is an exploded perspective view of the formwork fasteners, according to an embodiment of the present invention.

Figure 4 is a perspective view showing a part of the formwork fastener is coupled, according to an embodiment of the present invention.

Figure 5 is a state of use of the formwork fasteners, according to an embodiment of the present invention.

Figure 6 is a state of use of use to dismantle the formwork fasteners, according to a preferred embodiment of the present invention.

Figure 7 is a perspective view showing a combined view of the support and the support, according to another preferred embodiment of the present invention.

8 is a perspective view showing a combined state of the support and the support, according to another preferred embodiment of the present invention.

9 is an exploded perspective view of a formwork fastener, according to another preferred embodiment of the present invention.

 <Explanation of symbols for main parts of drawing>

10: Support 11: Sephataibu

12: Insertion hole 13: Hanging groove

14: incision groove 15: locking jaw

16: thread 18: fixture
19: support step 19a: support member

20: Base 30: Tightening Washer

31: Lateral slope 32: Guide hole

33: horizontal plane 34: insertion hole

35: upper protrusion 36: lower protrusion

The present invention relates to a form fastener, and more specifically, one side of the Sepha Tie-shaped Sepha Tie portion is formed can be fixed and fastened to the formwork plate, the support is formed in the middle of the incision groove is cut by the rotation of the fixture, and this Using a support, it can be easily fastened to the formwork plate, and relates to a formwork fastener that can be easily dismantled.

Various form fasteners of various types are known. Utility Model Registration No. 0314580 relates to a concrete wall formwork fastener, filed by the inventor. 1 is a state diagram used in the formwork fastener of Utility Model Registration No. 0314580.

In the pre-registered invention, a separate connection nut was required because the Sepha Tie 200 had to be screwed with the connection nut 220, and since the fixing rod 120 was screwed to the opposite side of the connection nut 220, A separate fixing rod 120 was also required, and the fixing rod 120 was also fixed by the tightening nut 140, and thus a separate tightening nut 140 was also required. In addition, the support hole 300 has to have a locking jaw in order to be caught in the formwork plate (A) could be fixed to the formwork plate to perform its function. As such, the conventional form fastener has a disadvantage in that too many parts such as the Sepha tie 200, the connecting nut 220, the fixing rod 120, the fastening nut 140, etc. are used to form the form plate. The disadvantage is that manufacturing is not simple because it must have a jaw.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a support and a form fastener including the support, which can be manufactured in a single process by simplifying the functions of various conventional parts. .

Another object of the present invention is to cleanly process the cement finishing work for the portion of the concrete is not poured because of the support, after the concrete pouring, and form a fastener that almost no defect of cement finishing work over time To provide.

In order to achieve the above object, the die fastener according to a preferred embodiment of the present invention is inserted into the formwork to be fixed to the die at one end of the sepatai portion formed by the insertion hole and the insertion groove, the incision by the rotation of the fixture during disassembly Being indented groove, the supporting jaw is caught on one side of the incision groove, the support is fixed to the other end has a fastener that can be rotated using a wrench or spanner, the support is inserted into the support to support the formwork plate And a fastening washer inserted into the support to firmly fix the formwork plate.

Preferably, the fastener is a hexagon nut, and the fastener is screwed to the support by a screw thread formed at the lower end of the support.

Preferably, the cutting groove has the shape of the screw-type cutting thread.

Preferably, the fastening washer is formed with a top projection to be priced at the time of fastening, a bottom projection is formed to be priced when dismantled, an insertion hole having a diameter enough to insert the fixture of the support is formed, when fastening Guide holes are formed to move the support along the side slope. In addition, the fastening washer has a horizontal surface to be in close contact with the fastener when fastened.

Hereinafter, the formwork fastener of the present invention with reference to the accompanying drawings will be described in more detail.

3 is an exploded perspective view of the formwork fastener, according to an embodiment of the present invention. Formwork fasteners of the present invention includes a support 10, the support 20, fastening washer 30.

Separating portion 11 is formed on one side of the support 10, the middle of the cutting groove 14 and the locking step 15 is formed.

Sepha Tie 11 of the support 10 is formed with the insertion hole 12 and the engaging groove 13 to serve as a conventional Sepha Tie. That is, the Sepha Tie 11 is inserted into one of the formwork plates and fixedly fastened by using the insertion hole 12 and the locking groove 13, as in the conventional Sepa Tie.

An incision groove 14 is formed in the middle portion of the support 10. The incision groove 14 is a part which is cut when forming a formwork and then dismantling the formwork plate, and is capable of various changes such as forming a plurality of perforation grooves or forming an incision groove by pressing. . When disassembling the formwork, if the fixture 18 is rotated in one direction by using a tool such as a spanner or a wrench, the Sepha Tie 11 of the support is fixed to one formwork, Since the part is embedded in concrete, the weakest part of the cutout groove 14 is cut.

Cutting groove 14 should be excellent in tensile force to withstand the strong lateral load generated during concrete casting, and should be easily cut when the fixture is rotated. Preferably, the cutting groove 14 has a screw-type cutting thread shape, but is not limited thereto, and a plurality of porous cutting grooves may be formed, or a cutting groove may be formed through compression. As shown in the figure, in the case of forming a screw-type cutting thread-shaped cutting groove, a desired tensile force (about 3 t) can be obtained, and the cutting groove is easily cut by the non-gap action. That is, when the fixture is rotated, the shape of the incision groove is a screw-type cutting thread, so that it is easily cut by the gap action.

Fixture 18 is fixedly coupled to the end of the support 10 serves to support the fastening washer 30. Referring to Figure 3, the end of the lower end of the support thread 16 is formed. This is to allow the fastener 18 to be screwed with the hexagon nut in the case of the hexagon nut as shown. Continued rotation in the direction of winding the fasteners, which are hexagonal nuts at the time of disassembly of the formwork, the fasteners will rotate the support, whereby a force is transmitted to the incision grooves so that the screw-type cutting thread is cut by the gap action.

The locking jaw 15 positioned next to the incision groove 14 serves to catch the support 20. The catching jaw 14 can be formed simply by applying a shock as if slightly picked on one side during the press work.

Thus, since the support is formed in the Sepha Tie-shaped Sepha Tie, incision groove, the locking jaw, as in the conventional form fastener (Utility Model Registration No. 314580) and Sepha Tie (including connection nut) and fixing rod, There is no need to make the tightening nuts individually and screwed together, only one support performs this function, there is an advantage that the support can be easily manufactured in a single process.

The support 20 is inserted into the support and is caught on the locking jaw, and serves to support the form plate when forming the form plate. The material of the other part is usually made of steel, but the base 20 may be made of plastic or concrete having a strong strength, unlike the material of the other parts. In particular, when concrete is used as the support 20, when removing the support from the concrete after placing the concrete, as shown in Figure 6, the support and the concrete is the same material, the need to finish without having to remove the support There is this.

Fastening washer 30 serves to firmly secure the formwork plate with the support 20. The fastening washer 30 has an upper projection 35 and a lower projection 36 formed therein, and is inserted into the support through the insertion hole 34 to be fastened to the formwork plate along the guide hole 32 formed along the side slope. To secure the formwork plate.

Figure 4 is a perspective view showing a part of the formwork fastener is coupled, according to an embodiment of the present invention. That is, the support and the support is coupled. After the support 20 is first inserted into the support, the fixture 18 is screwed into the thread formed at the lower end of the support. The support will be manufactured and sold with the fixture and the base inserted.

5 is a state diagram used in the form fastener according to an embodiment of the present invention. That is, the case where the form plate is formed using the form fastener of this invention is shown.

First, using the insertion hole and the locking groove of the support 10 Sepha Tie 11, the support is fixed to one form plate A as in the conventional Sepa Tie. The base plate 20 and the fixture 18 are positioned based on the die plate A, respectively, and then the fastening washer 30 is inserted into the die plate to form the die plate.

The method of inserting the fastening washer 30 between the mold plates is made in the same manner as the method of inserting the fastening washer of Utility Model Registration No. 0337014, which is filed by the inventor. That is, while the support is inserted into the insertion hole of the fastening washer 30, the fastening washer 30 is inserted by hitting the upper protrusion of the fastening washer 30 using a hammer or the like. Thus, the formwork fastener of the present invention is to be firmly fixed to the formwork plate.

Figure 6 is a state diagram of use of dismantling the formwork fasteners, according to a preferred embodiment of the present invention. That is, it shows the state that the cutting groove of the support is cut at the time of disassembling the form plate (B).

When dismantling the formwork, the operator rotates the fixture so that the incision groove of the support is cut. Since the incision groove is in the shape of a screw-type cutting thread, the incision groove is cut by the non-gap action. If the fixture is a hexagonal nut, the turning fixture is continuously turned in the winding direction, the fixture causes the support to rotate, thereby cutting the incision groove. In other words, because the sepatai portion of the support is fixed to the formwork plate on the other side, the weakest portion of the cutting groove is cut.

Normally, when fastening formwork in a building, formwork plates (A) are used to form the concrete outer wall of the building, where the space part (C) after removing the formwork plates (A) must be finished with concrete. do. If the base is made of concrete, it is easy to finish the work even without removing the base.

Figure 2 is a state diagram used when disassembling the conventional form fastener. As shown in FIG. 2, when the form fasteners are dismantled, an empty space portion (C portion) having no concrete is created by the head portion 302 of the base 300. In general, the height of the head of the support is preferably about 7 to 8 mm, so that the height t of the C portion is also about 7 to 8 mm.

In the conventional case, since the support hole 300 is inserted into the hole of the form plate and adheres to the form plate A, the form plate A and the support port 300 should be separated together when dismantling the concrete. If the height of the support head is too high, the formwork and the support are not easily pulled out because the support is buried deeply in the concrete when the concrete is poured. In particular, when the form plate is bent rather than one (-) characters, for example, "a", "c" characters, etc. will not fall further.

Part C, the groove formed by the head of the base, shall be filled with a separate cement finish after dismantling the formwork. The thicker the height (t) of the C part, the less the occurrence of later defects. Even after the concrete is poured, the sepa tie 200 and the connecting nut 220 are inserted into the concrete. Since the material of the Sepha Tie 200 and the connecting nut 220 is iron, the coefficient of thermal expansion is different from that of the concrete. Therefore, if the height of the C part (t) is low and the finishing work of the C part is formed low, the thermal expansion degree is different over the four seasons, there is a problem that the cracks may occur in the cement finishing work where water-resistant defects may occur. .

As such, the conventional formwork fastener has a disadvantage that if the height of the head of the base is too high, it does not fall out when dismantling the formboard, but if it is too low, there is a risk of defects in the part of the cement finish over time. .

On the contrary, the support 20 of the present invention is not fastened to the formwork plate because the locking step is not formed unlike the conventional case. Even when the formwork is dismantled, it is not fixed to the formwork, so even if the thickness of the support (t) is thicker, the formwork is easily separated from the concrete. Therefore, the thickness of the base can be increased by about 3cm.

Accordingly, since the space portion (C) remaining at the time of disassembling the form plate after concrete placement is deeper, the concrete finishing work can be perfectly performed, and thus there is no risk of generating a waterproof defect due to the occurrence of cracks.

7 is a perspective view showing a combined state of the support and the support according to another embodiment of the present invention. Unlike FIG. 4, the fixture is formed integrally with the support. That is, the support of FIG. 7 may insert the lower end of the support into the bolt manufacturing machine in the state where the support is inserted into the support, and the fixture may be integrally manufactured to the support in the form of a bolt.

Figure 8 is a perspective view showing a combined state of the support and the support, according to another preferred embodiment of the present invention. That is, it shows the case where the cut groove is formed in a round band shape instead of a screw-type cutting thread.

9 is an exploded perspective view of a formwork fastener, according to another preferred embodiment of the present invention. That is, the support has a Sepha Tie that is joined by rivets so that the support 10 of the present invention can also be used in aluminum gang foam. That is, like the shape of the Sepha Tie generally used to form the aluminum gang form, the Sepa Tie portion of the support may be formed in a rivet shape.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages constituting the claims of the present invention will be described below. It should be recognized by those skilled in the art that the conception and specific embodiment of the invention disclosed can be used immediately as a basis for designing or modifying other structures for carrying out similar purposes to the invention.

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In addition, the inventive concepts and embodiments disclosed herein may be used by those skilled in the art as a basis for modifying or designing other structures for carrying out the same purposes of the present invention. In addition, such modifications or altered equivalent structures by those skilled in the art may be variously changed, substituted and changed without departing from the spirit or scope of the invention described in the claims.

As described above, in the present invention, the die fastener can simplify the function of various conventional parts to produce a support in one single process, and thus can be produced simply and easily, thereby improving productivity and using less parts. It has the advantage of being economic. In addition, when dismantling the formwork, since the support is not attached to the formwork, the thickness of the support can be made thick, so that the cement finishing work on the part where the concrete is not poured after the concrete is laid neatly However, even if time passes, there is a merit that there is little defect of cement finishing work.

Claims (8)

Separating part 11 having an insertion hole 12 and an insertion groove 13 formed so as to be fixed to the die at one end, an incision groove 14 that is cut by the rotation of the fixture 18 when disassembling the die, the A support 10 including a locking jaw 15 to which the support hole 20 is caught at one side of the incision groove 14, and a fixing tool 18 fixed to the other end to rotate using a wrench or a spanner, Supporting means 20 is inserted into the support 10 to support the formwork plate, and Formwork fasteners, characterized in that it comprises a fastening washer (30) inserted into the support (10) to firmly fix the formwork plate. The method of claim 1, The fastener (18) is a hexagon nut, the fastener (18) by the screw line formed on the lower end of the support (10), the fastener (18) characterized in that the screw fastened to the support (10). The method of claim 1, The cutting groove 14 is a die fastener, characterized in that it has the shape of the screw-type cutting thread. The method of claim 1, The fastening washer 30 has a top protrusion 35 is formed to be priced at the time of fastening, a bottom protrusion 36 is formed to be priced at the time of dismantling, and the fastener 18 of the support 10 is inserted. Forming hole having a diameter of about 34 is formed, the formwork fastener, characterized in that the guide hole 32 is formed to move the support along the side slope surface 31 at the time of fastening. The method of claim 4, wherein The fastening washer 30 is a form fastener, characterized in that it has a horizontal surface (33) to be in close contact with the fixture (18) when fastened. Separating part 11 having an insertion hole 12 and an insertion groove 13 formed so as to be fixed to the die at one end, an incision groove 14 that is cut by the rotation of the fixture 18 when disassembling the die, the The support jaw, characterized in that it comprises a fastener (18) that is fixed to the locking end (15), the other end is fixed to the other end is caught on the support hole 20 on one side of the incision groove (14). The method of claim 6, The fastener (18) is a hex nut, characterized in that the fastener (18) is screwed to the support (10) by a screw line (16) formed at the lower end of the support (10). The method of claim 6, The cutting groove 14 is characterized in that it has the shape of the screw-type cutting thread.

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