KR20090008002U - Corner-covering member being able to easily stick on and off - Google Patents

Abstract

The present invention relates to a detachable face ear, and more specifically, the round surface is inclined portion formed in the concrete surface forming a corner such as a concrete pillar, a wall end, a corner of the bottom of the beam and a balcony, such that the slope is formed, and the A head portion corresponding to a round surface and having a vertical surface to which the formwork panel is in close contact, and a space hole formed to penetrate between the round surface and the vertical surface; A body portion extending from the head portion and provided with a catching piece fitted between the inner surface of the formwork panel and a plate piece extending to both sides of the catching piece; And a hook portion connected to the other side of the plate piece and provided at a predetermined angle, and a tail portion provided with a latching jaw extending to the hook portion to which the formwork panel is fitted.

According to the present invention, the detachable cotton ear including the head portion, the body portion, and the tail portion can be used permanently regardless of the number of times used when forming the concrete surface, and can automatically suppress the generation of construction waste and handle If the ear is broken during the detachment can be easily replaced easily, attaching the ear once has the advantage of improving productivity by reducing the repetitive work that must be attached every time the concrete is placed.

 Face, head, body, tail

Description

Removable Facet {Corner-covering member being able to easily stick on and off}

The present invention relates to a detachable cotton ear, and more particularly, a detachable cotton ear including a configuration of a head part, a body part, and a tail part can be used permanently regardless of the number of times used when forming a concrete surface, Occurrence can be automatically suppressed, and if the ear is broken during handling, it can be easily replaced and detached easily.If the ear is attached once, it can reduce the repetitive work that needs to be attached at every concrete pouring. It relates to a detachable cotton ear that can be made.

In order to form concrete structures such as pillars and walls of buildings, we need to erect as many reinforcing bars as necessary for the construction site, and form the first part of the formwork to form a space with the same shape as that of the concrete structure. The concrete structure is constructed in such a way that the concrete is poured into the interior space formed by the curing.

As such, the formwork used for the construction of the concrete structure maintains the concrete in the shape and dimensions determined according to the design, prevents the leakage of moisture generated during the curing process after the concrete is laid, and external impacts do not reach the poured concrete. It is a hypothesis that is used after the concrete is firmly cured and then removed.

The formwork having such a function is composed of a plurality of forms (assembles) according to the size or shape of the concrete structure, usually the euroform formed by bonding the plywood to the front of the steel frame is mainly used as formwork foam There is a problem that Euroform is very heavy, so handling is difficult and workability is reduced.

In order to improve the above problems of the euroform, the frame and the reinforcement frame are welded to each other to form a rectangular frame frame, and to fix the plywood to the frame frame to form a panel to install the formwork form the assembly, Aluminum foam, which forms the material of the frame with high strength aluminum, has been proposed as Korean Utility Model Publication No. 20-1999-0020706 (name: Reinforced Concrete Formwork Panel).

However, the reinforced concrete formwork panel as described above, the frame is made of aluminum material, but the weight can be reduced to some extent, but as the plywood must be fixed to the frame by rivets one by one, the assembly work is difficult and takes a lot of work time construction period There is a problem that the construction cost is increased.

In addition, in the conventional extruder, an outer frame is formed on both left and right sides of the aluminum (Al) material, and an extrusion molding process of extruding the main plate so that a plurality of reinforcing protrusions are integrally formed in the longitudinal direction, respectively. Process and the second process, which is the process of milling to install the reinforcing frame at both ends while forming the connection hole by processing the side of the main plate extruded in the first process, the extrusion process In the second step is formed by the third step of the reinforcing frame joining process of welding configuration to combine or integrally reinforcement frame made of a separate aluminum (Al) material to the reinforcing frame installation portion formed by milling at both ends of the main plate Aluminum foam has been proposed as Republic of Korea Patent Publication No. 10-1998-0009704 (name: Aluminum Euroform (concrete formwork) and its manufacturing method).

However, the aluminum euroform as described above can form a lightweight euroform by forming the main plate and the reinforcing frame of aluminum, and by forming the connecting hole by processing the side of the main plate and installing the reinforcing frame at both ends. However, since all the members forming the Eurofoam are formed of aluminum, which is a relatively expensive material, the price is excessively expensive, and since the main plate is made of all the metal reinforcing frames, the noise is severe when handling and assembling work. There was a problem causing noise pollution.

The above conventional formwork foams are made of a single size in addition to the above problems, so when the size of the concrete pillar is changed according to the load of the building, it is very inconvenient because the formwork must be disassembled and then assembled again. There is a problem that can not accurately adjust the concrete pouring space to be formed.

Invented by the present invention, the detachable noodle includes the head, the body, and the tail portion, and can be used permanently regardless of the number of times used when forming the concrete surface, and can automatically suppress the generation of construction waste, and during handling Detachable noodle can be easily replaced when the noodle is broken, and attaching noodle once can reduce the repetitive work that needs to be attached at each concrete placing, and provide a detachable noodle that can improve productivity. It is done.

Another object of the present invention, by forming at least one or more horizontal holes at a predetermined interval in the body portion, to prevent damage to the ear when the operator puts the pin, as well as compatibility with various types of products can be used for compatibility It is to provide detachable cotton ear which can be high.

Another object of the present invention is that the horizontal groove is formed on the plate piece of the body portion, so that the operator can process the horizontal hole or present the dimensional guide when assembling the detachable face ear that the operator can work quickly To provide.

Yet another object of the present invention is that the hanger of the tail portion is formed to be inclined about 6 ° while extending to the plate piece, thereby fixing the panel for the formwork to the inside of the hanger to improve the adhesion, and serves as a guide to firmly hold the formwork panel By providing a detachable face ear to facilitate assembly of the formwork panel.

Yet another object of the present invention is to provide a detachable face ear which can prevent the round surface from being bent or broken when the area of the part contacting the concrete surface is provided by at least one reinforcing bar in the space hole of the head portion. will be.

Still another object of the present invention is to make a triangular shape or a round shape having a predetermined radius of curvature, which is formed to be inclined at a predetermined angle of the round surface of the head portion, thereby making a triangular shape or a round shape according to the shape design of the concrete surface and applying it. It is to provide a detachable cotton ear.

Another object of the present invention, the head portion, including the head portion, the body portion, the tail portion is made of synthetic resin material impregnated with the original resilience, flexibility and elasticity can be detachable to be useful when forming a concrete surface To provide facets.

Hereinafter, the present invention will be described.

The present invention in connection with the problem solving means,

Round surface in which a close contact portion is formed to be inclined when forming a concrete surface, such as a pillar of concrete, a wall end portion, a corner of the lower end of the beam, and a vertical surface corresponding to the round surface and in close contact with the formwork panel, and the round surface A head portion having a space hole formed to penetrate between the vertical surface and the vertical surface; A body portion extending from the head portion and provided with a catching piece fitted between the inner surface of the formwork panel and a plate piece extending to both sides of the catching piece; And a hook portion connected to the other side of the plate piece and provided at a predetermined angle, and a tail portion provided with a latching jaw extending to the hook portion to which the formwork panel is fitted.

Another design of the present invention, the body portion, at least one or more horizontal holes for connecting the formwork panel using a pin; is configured to include.

Another design of the present invention, the plate piece, a horizontal groove for presenting a predetermined position for the dimensional guide when processing or assembling the horizontal hole; is configured to include.

Another design of the present invention, the hanger is formed to be inclined at an angle of about 6 ° while extending to the plate piece.

Another design of the present invention, the space hole, when the portion in contact with the concrete surface is wide; reinforcing bar to prevent the rounded surface is configured to include.

Another design of the present invention, the round surface is made of a triangular shape or a round shape having a predetermined radius of curvature formed to be inclined at an angle determined according to the shape design of the concrete surface.

Another design of the present invention, the cotton ear is made of a synthetic resin material impregnated with the original recovery properties and flexibility and elasticity.

Effects according to the present invention are as follows.

First, the detachable face ear includes the head, body and tail parts, which can be used permanently regardless of the number of times when concrete surface is formed, and it can automatically suppress the generation of construction waste. In case of breakage, it is easy to replace and detach easily, and attaching cotton ear once can reduce the repetitive work that needs to be attached every time concrete is put in place, and it has the effect of providing detachable cotton ear which can improve productivity. have.

Second, since at least one horizontal hole is formed at a predetermined interval in the body part, when the worker puts a pin, the face ear is prevented from being damaged, and it can be mixed with various kinds of products so that the detachability can be improved. It also has the effect of providing possible facets.

Third, since the horizontal groove is formed on the plate piece of the body portion, the operator can provide a detachable face ear that allows the operator to work quickly by presenting a predetermined position of the dimensional guide when processing the horizontal hole or assembly.

Fourth, the hanger of the tail portion is formed to be inclined about 6 ° while extending to the plate piece, thereby fixing the formwork panel to the inside of the hanger to improve the adhesion, and serves as a guide to firmly hold the formwork panel, It is also effective to provide a detachable face ear to facilitate assembly.

Fifth, by providing at least one reinforcing rod in the space hole of the head portion, there is also an effect of providing a detachable face ear that can prevent the round surface is bent or broken when the area of the portion in contact with the concrete surface is large.

Sixth, by producing a triangular shape or a round shape having a predetermined radius of curvature inclined at a predetermined angle of the round surface of the head portion, detachable face ear that can be applied to make a triangular or round shape according to the shape design of the concrete surface There is also the effect of providing.

Seventh, the face ear composed of the head, body and tail part is made of synthetic resin material impregnated with the original recovery properties, flexibility and elasticity to provide a detachable face ear that can be useful when forming concrete surface have.

Hereinafter, with reference to the accompanying Figures 1 to 9 will be described in detail the details according to the present invention.

1 is a perspective view showing a detachable cotton ear according to the present invention, Figure 2 is a view showing a detachable cotton ear according to the present invention, Figure 3 is an enlarged view of part A of Figure 1, Figure 4 4 is a view showing a state in which the formwork panel is fixed to both sides of the horizontal hole according to the present invention, Figure 4a is a cylindrical pin coupled to the horizontal hole according to the present invention, Figure 4b is a conical pin according to the present invention Figure 5 is a view showing a combined state, Figure 5 is a view showing a first embodiment of a round surface according to the present invention, Figure 6 is a view showing a second embodiment of a round surface according to the present invention, Figure 7 is a view showing a modified state of the tail portion according to the present invention, Figure 8 is an embodiment applying the detachable noodle according to the present invention, Figure 8a is applied to the detachable noodle according to the present invention Figure 8b is a view showing a state, Figure 8b is a view showing a state of construction by applying a detachable cotton ear according to the present invention to the column, Figure 8c is a detachable cotton ear according to the present invention by applying to the wall end Figure 8d is a view showing a state of construction, Figure 8d is a view showing a state of construction by applying a detachable cotton ear according to the present invention to the balcony, Figure 8e is a removable ear ear according to the present invention by applying to the beam 9 is a view showing a state of construction, Figure 9 is a view showing a state in which the concrete pillars are applied by applying a detachable face according to the present invention.

With reference to Figures 1 to 9, removable face ear 100 according to the present invention is a concrete according to the size of the concrete surface 600, the corners such as concrete pillars, wall end, beam bottom and balcony generated corners It is to be able to easily adjust the size of the space to be poured and to easily install the cotton ear 100 as needed to greatly improve the workability.

With reference to Figures 1 and 2 and 8 and 9, the detachable face ear 100 according to the present invention is a concrete surface 600, such as a concrete pillar, a wall end, a corner of the bottom of the beam and a balcony, such as a corner occurs Round surface 210, the close contact portion is formed to be inclined when formed, the vertical surface 220 corresponding to the round surface 210, the formwork panel 500 is in close contact, and the round surface 210 and the vertical surface ( And a head portion 200 having a space hole 230 formed therebetween, 220, extending from the head portion 200, and a locking piece 310 fitted between an inner surface of the formwork panel 500. A body portion 300 provided with plate pieces 320 extending to both sides of the catching piece 310, a catching table 410 connected to the other side of the plate piece 320 and provided at a predetermined angle; The frame is provided with a hooking jaw 420 extending to the hanger 410 to which the formwork panel 500 is fitted. It is configured to include a portion (400).

The face ear 100 is configured to be fitted in the vertical direction coupled to the inner edge portion formed by any one of the formwork panel 500 and the neighboring formwork panel 500, the inner end is inclined at a predetermined angle A rounded surface 210 having a curved or curved shape is formed, and an outer side of the rounded surface 210 is caught between a cutout groove formed at a distal end of the clamp member and an inner surface of a neighboring formwork panel 500 ( 310 is formed.

The head portion 200 includes a round surface 210, a vertical surface 220, and a space hole 230, and the round surface 210 and the vertical surface 220 fixed to the formwork panel 500 are provided. When pouring concrete, the corner portion of the concrete surface 600 can be formed in various shapes, and the head portion 200 is designed so that the desired dimension comes out at the time of forming the concrete surface 600, foam (aluminum foam, flow path product). , Gangform, plywood, special products for a specific company) and the line where the head portion 200 of the face ear 100 meets in a straight line and can prevent the occurrence of gaps (error) can be constructed high-quality concrete surface 600 .

In addition, the round surface 210 of the head part 200 is formed to be inclined in close contact with the curing of the concrete surface 600, there is an advantage that the concrete surface 600 can be produced in various shapes.

2, 5, and 6, the round surface 210 of the head portion 200 has a triangular shape or a predetermined radius of curvature formed to be inclined at an angle determined according to the shape design of the concrete surface 600. It is made of a round shape having.

That is, the round surface 210 is injected into various shapes (triangular shape or round shape) using a synthetic resin material and fixed to the panel 500 for formwork, and the part closely contacted with the concrete surface 600 is triangular shape or round. By curing in the shape, it is possible to provide a high-quality concrete surface 600 by forming so as to conform to the design details of the concrete surface 600, it is possible to shorten the working time of the worker.

The vertical surface 220 of the head portion 200 is formed to correspond to the round surface 210, and is provided to be in close contact with both sides of the formwork panel 500 of the formwork panel 500 by the weight increase during concrete pouring Both sides of the vertical surface 220 in contact with both sides is fixed to be in close contact serves as a fixing frame to cure the concrete surface 600.

Referring to FIG. 2, the space hole 230 of the head portion 200 is formed to penetrate between the round surface 210 and the vertical surface 220. As the concrete surface 600 is cured, the concrete volume increases. The space hole 230 is formed between the round surface 210 and the vertical surface 220 in order to prevent the head part 200 from being damaged.

In addition, the space hole 230 of the head part 200 is configured to include a reinforcing rod 240 to prevent the round surface 210 from bending when a portion in contact with the concrete surface 600 is wide.

That is, the reinforcing table 240, which is provided to be inclined in the space hole 230 of the head portion 200, the round surface 210 by the expansion properties in the process of nurturing the triangular or square concrete surface 600 And the round surface 210 is further provided with a reinforcing table 240 formed in the space hole 230 to prevent the round surface 210 from being damaged or bent due to the case where the contact portion of the concrete surface 600 is widened. It serves to prevent breakage or bending.

The body portion 300 extends to the head portion 200, and includes a configuration of the locking piece 310 and the plate piece 320, the locking piece 310 is sandwiched between the inner surface of the form panel 500 It serves as a hook, the panel 500 for the formwork is installed in close contact with the plate piece 320, the face ear 100 including the head portion 200, the body portion 300, the tail portion 400 is Forming panel 500 when the concrete can be prevented from shaking. In addition, the body portion 300 can be used in the '-' shape to be in close contact with the formwork panel 500, but the body portion 300 of the present invention is produced in an embossed or curved shape panel 500 for the formwork It is preferable to use in close contact with).

1 and 3 and 4a and 4b, to connect the formwork panel 500 using the pin 700 to the body portion 300 that is the configuration of the face ear 100 according to the present invention It is configured to include at least one horizontal hole (330).

The horizontal hole 330 is formed so that at least one or more horizontally penetrates through the central portion of the body portion 300, the worker uses a pin 700 in the horizontal hole 330 of the body portion 300 Used to connect the panel 500, in the horizontal hole 330 of the present invention it is preferable to process at regular intervals so as not to damage the face ear 100 in the pin 700.

The pins 700 for connecting each formwork panel 500 are inserted into and fixed in a horizontal hole 330 provided in the face 100 using a conical pin or a cylindrical pin. The panel 500 can be firmly assembled.

1 and 2 and 3, the plate piece 320 of the present invention includes a horizontal groove 340 to present a predetermined position for the dimensional guide when processing or assembling the horizontal hole 330 It is composed.

By having a horizontal groove 340 formed in a vertical line on the plate piece 320, it is possible to present a predetermined position to process the horizontal hole 330 at a predetermined interval in the body portion 300, There is an advantage that the dimensional guide can be presented during assembly.

1 and 2, the tail portion 400 of the constituent parts of the noodle 100 according to the present invention, the hook 410 is connected to the other side of the plate piece 320 and provided at a constant angle and The locking jaw 420 is provided to extend to the hook 410, the mold panel 500 is fitted.

That is, the tail portion 400 is provided at a position corresponding to the head portion 200, it can prevent the formwork panel 500 from falling out in a fixed state when the concrete surface 600 is constructed.

2 and 7, the hanger 410, which is a configuration of the tail part 400, is formed to be inclined at an angle of about 6 ° while extending to the plate piece 320, whereby the hanger 410 is a plate. It is connected to the other side of the piece 320 and is provided to be inclined at a predetermined angle in order to prevent the formwork panel 500 is separated to the outside.

The locking jaw 420 provided to extend to the hanger 410 serves to increase the adhesive force by the form panel 500 is fitted, as well as the form panel 500 is tightly fitted to the locking jaw 420 to the outside. This can prevent the departure from.

As shown in FIG. 7, the hanger 410 is formed to be inclined about 6 ° so that the hanger when the mold panel 500 is inserted and installed between the vertical surface 220 and the hanger 410 of the head 200. 410 is provided to be in close contact with the panel 500 for the formwork is opened at -6 °.

That is, the hanger 410 is formed to be inclined by about 6 ° so that the formwork panel 500 is separated by the elasticity and flexibility of the hanger 600 so as to be held more firmly in the process of inserting the formwork panel 500. It can be prevented, and also, as the guide panel in the process of inserting the formwork panel 500 has an advantage that the assembly of the formwork panel 500 can be facilitated.

1 to 7, the detachable cotton ear 100 according to the present invention is made of a synthetic resin material impregnated with original resilience and flexibility and elasticity.

The noodle 100 is made of a variety of materials, such as aluminum, plywood, iron plate, synthetic resin can be used in construction or civil engineering site, but the noodle 100 of the present invention is made of synthetic resin material containing original resilience, flexibility, elasticity By injection, it is preferable to use the concrete surface 600, such as a concrete pillar, a wall end, a corner of the bottom of the beam, and a corner such as a balcony.

In addition, the noodle 100 can be used permanently regardless of the number of times used when forming the concrete surface 600, it can automatically suppress the generation of construction waste, easy to attach and detach when the noodle 100 is damaged during handling. There is an advantage that can be easily replaced.

Figure 8 is an embodiment applying a detachable cotton ear according to the present invention, Figure 8a is a view showing a state applied by applying a detachable cotton ear according to the present invention, Figure 8b is removable according to the present invention FIG. 8C is a view illustrating a state in which the surface ear is applied to a column, and FIG. 8C is a view illustrating a state in which the detachable face ear is applied to the wall end portion according to the present invention, and FIG. 8D is a detachable according to the present invention. FIG. 8E is a view illustrating a state in which construction is possible by applying a face ear to a balcony, and FIG. 8E is a view illustrating a state in which construction is possible by applying a detachable face ear to a beam according to the present invention, and FIG. 9 is a detachable according to the present invention. The figure shows the state of the concrete column construction by applying the available face ear.

Referring to Figures 8a and 9, when describing the application state of the detachable cotton ear according to the present invention, first, the vertical surface 220 of the head portion 200 in the process of connecting the panel 500 for the formwork panel Install to be in close contact with the inner surface of the (500).

In addition, the body part 300 extending on the vertical surface 220 of the head part 200 is fixed in close contact with the other formwork panel 500, and then horizontally formed on the head part 200 at regular intervals. The pin 700 is inserted into the hole 330 to fix the pin 700.

Next, after fixing the formwork panel 500 between the vertical surface 220 of the head portion 200 and the hanger 410 of the tail portion 400, the locking step 420 is provided to extend to the hanger 410 The formwork panel 500 is caught in the assembly is completed.

Placing concrete to form a concrete surface 600 formed in a concrete pillar, etc. in the interior space of the formwork completed through the above process, when curing is completed, the formwork panel 500 and the face 100 are reused Just do it.

Therefore, the detachable noodle 100 according to the present invention can be used permanently regardless of the number of times used when forming the concrete surface 600, can automatically suppress the generation of construction waste, the noodle 100 during handling In case of breakage, the detachability can be easily replaced, and if the face ear 100 is attached once, the productivity can be improved by reducing the repetitive work to be attached every time the concrete is placed.

Referring to Figure 8b, showing the state of construction by applying a detachable cotton ear according to the present invention to the pillar, the surface ear in the state of assembling the surface ear 100 in the corner end portion of each form panel 500 The pin 700 is inserted into the horizontal hole 330 formed in the 100 to fix the formwork panel 500 so as not to move, and then a concrete is formed by pouring concrete.

Referring to Figure 8c, showing the state of construction by applying the detachable cotton ear according to the present invention to the wall end portion, the surface ear 100 after installing the cotton ear 100 on the inner surface of the formwork panel 500 Fix the mold on the inner side of the mold and insert the pin 700 into the horizontal hole 330 to assemble the formwork panel 500 and the face 100 and the mold, and then cast concrete in the inner space to create a wall can do.

Referring to Figure 8d, showing the state of construction by applying the detachable cotton ear according to the present invention to the balcony, after installing the cotton ear 100 on the inner surface of the panel 500 for formwork 100 After fixing the mold on the inner side and inserting the pin 700 in the horizontal hole 330 to assemble the formwork panel 500 and the face 100 and the mold, and then to cast concrete in the interior space to create a balcony Can be.

Referring to Figure 8e, showing the state of construction by applying a detachable cotton ear according to the present invention to the beam, after installing the cotton ear 100 on the inner side of the panel 500 for formwork of the cotton ear 100 After fixing the plywood to the inner side and inserting the pin 700 in the horizontal hole 330 to assemble the formwork panel 500 and the face 100 and the mold, and then cast concrete in the interior space to support the bridge or building You can create a beam.

Therefore, the detachable cotton ear according to the present invention can be automatically applied to the corners of the pillars, walls, balconies, and beams that are made in various shapes, thereby automatically suppressing the generation of construction waste and, Easily replaceable, and once attached to the cotton ear has the advantage of improving productivity by reducing the repetitive work that must be attached at each concrete pouring.

The present invention is not limited to the technical idea of the specific embodiments or drawings described above, without having to leave the gist of the present invention claimed in the utility model registration claims without having a general knowledge in the technical field to which the present invention belongs Anyone can make various modifications, as well as such changes, the invention is within the scope of the claims.

1 is a perspective view showing a removable ear ear according to the present invention.

Figure 2 is a view showing a removable ear ear according to the present invention.

3 is an enlarged view of a portion A of FIG. 1;

4 is a view showing a formwork panel is fixed to both sides of the horizontal hole according to the present invention, Figure 4a is a view showing a state in which the cylindrical pin is coupled to the horizontal hole according to the present invention, Figure 4b Figure showing a conical pin coupled state according to.

5 is a view showing a first embodiment of a round surface according to the present invention.

6 is a view showing a second embodiment of a round surface according to the present invention.

7 is a view showing a modified state of the tail portion according to the present invention.

Figure 8 is an embodiment applying a removable ear ear according to the present invention, Figure 8a is a view showing a state applied by applying a removable ear ear according to the present invention, Figure 8b is removable according to the present invention FIG. 8C is a view illustrating a state in which the surface ear is applied to a column, and FIG. 8C is a view illustrating a state in which the detachable face ear is applied to the wall end portion according to the present invention, and FIG. 8D is a detachable according to the present invention. FIG. 8E is a view illustrating a state in which construction is possible by applying a face ear to a balcony, and FIG. 8E is a view illustrating a state in which a detachable face ear is applied to a beam according to the present invention.

Figure 9 is a view showing a state in which the concrete pillar construction by applying a detachable face according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: face ear

200: head

      210: round face 220: vertical face

      230: space hall 240: reinforcement

300: body part

      310: engaging piece 320: plate piece

      330: horizontal hole 340: horizontal groove

400: tail part

      410: hanger 420: hanger

500: formwork panel 600: concrete surface

700: pin

Claims (7)

A round surface in which a close contact portion is formed to be inclined when forming a concrete surface such as a concrete pillar, a wall end portion, a corner portion of a beam bottom, and a balcony, and a vertical surface corresponding to the round surface and in close contact with the formwork panel; A head part having a space hole formed between the round surface and the vertical surface; A body portion extending from the head portion and provided with a catching piece fitted between the inner surface of the formwork panel and a plate piece extending to both sides of the catching piece; And And a hook portion connected to the other side of the plate piece and provided at a predetermined angle, and a tail portion extended to the hook portion and having a catching jaw to which the formwork panel is fitted. The method of claim 1, The body portion, Removable face ear comprising a; at least one horizontal hole for connecting the formwork panel using a pin. The method according to claim 1 or 2, On the plate piece, Removable face ear, characterized in that comprises a; horizontal groove for presenting a predetermined position for dimensional guide when processing or assembling the horizontal hole. The method according to claim 1 or 2, The hanger is, Detachable face ear, characterized in that is formed to be inclined at an angle of about 6 ° while extending to the plate piece. The method according to claim 1 or 2, In the space hall, Removable face ear, characterized in that comprises a; reinforcing bar to prevent the round surface is bent if the portion is in contact with the concrete surface. The method of claim 5, The round face, Detachable face ear, characterized in that consisting of a triangular shape formed inclined at an angle determined by the shape design of the concrete surface or a round shape having a predetermined radius of curvature. The method of claim 6, The face ear, Removable cotton ear, characterized in that it is made of synthetic resin material impregnated with original recovery properties, flexibility and elasticity.

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