KR20180100845A - Easily separable form from concrete - Google Patents

Abstract

Provided is a mold easily separated from concrete, formed in a shape in which a first panel having a plurality of holes and a second panel having a plurality of protruding units in the position corresponding to the first panel overlap each other. Accordingly, a contact area between each of the panels and a concrete surface is reduced when the mold is separated from the concrete so as to enable an adhesive force between each of the panels and the concrete surface to be reduced so that the mold can be easily separated.

Description

[0001] Easily separable form from concrete [0002]

The present invention relates to a mold which can be easily separated from concrete. More specifically, a mold is formed by overlapping a first panel having a plurality of holes and a second panel having a plurality of protrusions formed at corresponding positions thereof, The contact area between each panel and the concrete surface is reduced when the form is separated from the concrete panel, thereby reducing the adhesion between each panel and the concrete surface, thereby facilitating separation of the concrete from the concrete.

A concrete structure such as a wall or a column at the time of construction of various buildings or constructions is formed in such a manner that an inner space is formed by first forming a mold such as a mold that forms the shape of the concrete structure and then filling and curing the concrete in the mold, The formation of a concrete structure starts with the making of a mold, which is a mold for concrete curing.

The unit formwork panel used to make the above-mentioned form is composed of a plywood close to the concrete surface and a frame attached to the rear side of the plywood to reinforce the plywood. Conventionally, the frame is made of wood However, since the timber diespanpan is often damaged when the dies are broken after concrete curing, the durability of repetitive use is short. Therefore, recently, the timber frame has been replaced with steel or aluminum, Is widely used.

However, when the panel is replaced with a plurality of pieces of steel or aluminum constituting the mold panel, the weight of the panel is excessively large and it is very difficult for a person to handle. Therefore, except for a special case, have.

As described above, a dice panel comprising a plywood and a frame must be able to be reused repeatedly, be easily separated from the cured concrete structure, and be able to cure as smoothly as possible without damaging the concrete surface.

However, since the plywood, which is made of wood, absorbs the water well due to its characteristics, it absorbs the moisture inside the concrete during the concrete curing process, making the surface of the cured concrete roughened and the curing concrete is bonded to the surface of the plywood which is not smooth. During the separation, the concrete bonded to the plywood surface is separated from the concrete structure together with the plywood.

Therefore, not only the surface of the cured concrete structure becomes rougher, but also, in order to reuse the disassembled formwork panel, it is troublesome to remove the concrete adhering to the surface of the plywood and the concrete surface is damaged in the process of removing the concrete There was a problem that it was difficult to reuse the form.

On the other hand, prior art related to formwork is disclosed in Korean Patent No. 10-1105881.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method of manufacturing a display device in which a plurality of holes are formed in a first panel and a second panel having a plurality of protrusions, It is an object of the present invention to reduce the contact area between each panel and the concrete surface when the form is separated from the concrete, thereby reducing the adhesion between each panel and the concrete surface, thereby facilitating the separation of the form.

According to an aspect of the present invention, there is provided a method of manufacturing a concrete structure, the method comprising: A second panel having a plurality of protrusions formed at positions corresponding to the holes; Wherein when the first panel and the second panel are combined, the surface of the first panel contacting the concrete is completely flat.

In addition, the mold easy to be separated from the concrete according to the second embodiment includes a first panel having a plurality of holes; A second panel formed with a plurality of projections at a position corresponding to the hole and formed of a thin metal plate; Wherein the first panel is formed integrally with the case, and the second panel is formed in the inner space of the case. At this time, the second panel is movable in forward and backward directions by a spring in the inner space of the case, and is not separated from the case for convenient storage and transportation.

In addition, the mold easy to separate from the concrete according to the third embodiment includes a first panel having a plurality of holes; A second panel having a plurality of protrusions formed at positions corresponding to the holes; And an inclined surface is formed at a lower end of the plurality of holes and a lower end of the plurality of protrusions. At this time, if the second panel is pushed down, it is possible to separate the first panel from the first panel while the second panel is pushed backward by the inclined surface when the second panel is moved downward.

In addition, the mold easy to be separated from the concrete according to the fourth embodiment includes a first panel having a plurality of holes; A second panel having a plurality of protrusions formed at positions corresponding to the holes; Wherein an additional groove is formed on an upper surface of the hole of the first panel and an additional extended piece is formed on an upper surface of the projection of the second panel. At this time, it is possible to form a complete plane by joining the additional extension formed on the second panel to the additional groove formed on the first panel, and it is possible to move up and down by a spring on the lower part of the hole of the first panel When the second panel is pushed downward, the second panel is moved downward to be separated from the concrete while the advancing / retreating block is lowered.

In addition, the mold easy to separate from the concrete according to the fifth embodiment includes a first panel having a plurality of holes; A second panel having a plurality of protrusions formed at positions corresponding to the holes; And the plurality of protrusions of the second panel are formed of an elastic body. At this time, the second panel can be moved forward and backward by a spring in an inner space of the case, and the protrusion of the second panel can be separated from concrete while being bent backward.

In addition, the mold easy to separate from the concrete according to the sixth embodiment includes a first panel having a plurality of holes; A second panel having a plurality of protrusions formed at positions corresponding to the holes; And the plurality of protrusions of the second panel are connected to the first panel by a spring. At this time, the second panel is movable upward through a hole formed in the upper surface of the case, and the protrusion of the second panel can be separated from the concrete while being folded inward of the case by the spring.

The mold which can be easily separated from the concrete according to the present invention is characterized in that a mold is formed in the form of a first panel in which a plurality of holes are formed and a second panel in which a plurality of protrusions are formed at a position corresponding thereto, The contact area between each panel and the concrete surface is reduced, so that the adhesion force between each panel and the concrete surface is reduced, thereby facilitating the separation of the formwork.

In addition, it is possible to improve the productivity by separating and disassembling the formwork, and when the respective panels of the form are separated, the pieces of concrete are not attached to the surface of the panel so that they can be cured with a smooth concrete surface And the concrete pieces do not adhere to the respective panels of the form, so that the panels of the form can be reused many times. In addition, since the second panel is structured so as not to be detached from the case, there is an advantage in that it is convenient to store and convey the form.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 is a perspective view showing a form which can be easily separated from concrete according to a first embodiment of the present invention. FIG.
FIG. 2 is a cross-sectional view illustrating a mold that is easy to separate from concrete according to the first embodiment of the present invention.
FIG. 3 is a cross-sectional view illustrating a mold that can be easily separated from concrete according to a second embodiment of the present invention.
FIG. 4 is a cross-sectional view of a mold which is easy to separate from concrete according to a third embodiment of the present invention.
FIG. 5 is a cross-sectional view illustrating a mold that can be easily separated from concrete according to a fourth embodiment of the present invention.
FIG. 6 is a cross-sectional view illustrating a mold easy to separate from concrete according to a fifth embodiment of the present invention. FIG.
FIG. 7 is a cross-sectional view illustrating a mold that is easy to separate from concrete according to a sixth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily those not necessary in the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

FIG. 1 is a perspective view showing a form which can be easily separated from concrete according to a first embodiment of the present invention, FIG. 2 is a sectional view showing a form easy to separate from concrete according to a first embodiment of the present invention, 4 is a cross-sectional view showing a form which can be easily separated from concrete according to a third embodiment of the present invention, and Fig. 5 is a cross-sectional view of a concrete structure according to a third embodiment of the present invention. FIG. 6 is a cross-sectional view showing a form which can be easily separated from concrete according to a fifth embodiment of the present invention, and FIG. 7 is a cross- 6 is a cross-sectional view illustrating a mold that is easy to separate from concrete according to a sixth embodiment.

≪ Embodiment 1 >

FIG. 1 is a perspective view showing a mold 10 which is easy to separate from concrete according to a first embodiment of the present invention, FIG. 2 is a sectional view showing a mold easy to separate from concrete according to a first embodiment of the present invention .

1 and 2, the mold 10, which is easy to separate from the concrete according to the first embodiment, includes a first panel 11, a second panel 12, a case 13, A retracting means 15 and a support table 16.

A plurality of holes 11a are formed in the first panel 11 and a plurality of protrusions 12a are formed in the second panel 12 at positions corresponding to the holes 11a.

As shown in FIGS. 1 and 2, when the first panel 11 and the second panel 12 are combined, the surface of the first panel 11 contacting the concrete surface becomes perfectly flat. Therefore, the concrete is poured in a state where the first panel 11 and the second panel 12 are engaged, and after the concrete poured is cured, the first panel 11 and the second panel 12 And is separated from the concrete. At this time, while the concrete is curing, the case 13 is fixed in a state buried in the ground in a state where the first panel 11 and the second panel 12 are engaged.

The support frame 16 is disposed in a state where the first panel 11 and the second panel 12 are coupled to each other and supports the support panel 16 from the rear.

When the first panel 11 and the second panel 12 are separated from each other, the second panel 12 is pulled out from the rear to separate the first panel 11 and the second panel 12. After the separation of the second panel 12 is completed, (11).

When the mold 10 is separated from the concrete as described above, the plurality of protrusions 12a formed on the second panel 12 are first separated and then the first panel 11 is separated, The area where the panels 11 and 12 are in contact with the concrete surface is reduced so that the adhesion between the panels 11 and 12 and the concrete surface is reduced and the concrete is easily separated from the cured concrete wall.

Therefore, the work of separating and dismounting the form 10 is convenient, and the productivity can be improved. Also, when the panels 11 and 12 of the mold 10 are separated, the concrete pieces are not separated from the concrete surface, so that a smooth concrete surface can be cured. 11, 12 are not adhered to concrete pieces, the panels 11, 12 of the form 10 can be reused many times.

≪ Embodiment 2 >

FIG. 3 is a cross-sectional view showing a mold 20 which is easy to separate from concrete according to a second embodiment of the present invention.

3, the mold 20, which is easy to separate from the concrete according to the second embodiment, includes a first panel 21, a second panel 22, a spring 24, a case 23, And a second panel retracting means (25).

A plurality of holes 21a are formed in the first panel 21 and a plurality of protrusions 22a are formed in the second panel 22 at positions corresponding to the holes 21a. When the first panel 21 and the second panel 22 are coupled to each other, the surface of the first panel 21 contacting the concrete surface is perfectly flat.

The first panel 21 is integrally formed with the case 23 and the second panel 22 is formed inside the case 23.

The spring 24 is mounted between the second panel 22 and the case 23 so that the second panel 22 can move in the front and rear direction in the inner space of the case 23, (22) is not separated from the case (23), it is convenient to store and transport the mold (20).

The spring (24) is fixed to at least one of the second panel (22) or the case (23).

The second panel retracting means 25 is formed to pull the second panel 22 to the rear of the case 23 when the second panel 22 is detached from the concrete surface.

The second panel retracting means 25 may be formed in various shapes, for example, in the form of a handle or a lever.

Hereinafter, a process of separating the mold 20, which is easy to separate from the concrete according to the second embodiment, from the concrete surface will be described.

The first panel 21 and the second panel 22 are poured in a state where the first panel 21 and the second panel 22 are coupled to each other. After the poured concrete is cured, the first panel 21 and the second panel 22, . At this time, while the concrete is curing, the case 23 is fixed in a state where the case 23 is buried on the ground in a state where the first panel 21 and the second panel 22 are engaged.

A support (not shown) is disposed to support the first panel 21 and the second panel 22 in a state where the first panel 21 and the second panel 22 are coupled to each other .

When the first panel 21 and the second panel 22 are separated from each other, the second panel 22 is pulled out from the rear to separate the first panel 21 and the second panel 22. After the separation of the second panel 22 is completed, (21).

Specifically, when the second panel 22 is pulled to the rear of the case 23 using the second panel retracting means 25, a plurality of protrusions 22a formed on the second panel 22 are first separated The second panel 22 is brought into close contact with the rear of the case 23 so that the case 23 is also pulled backward The first panel 21 is separated from the concrete surface.

When the second panel retracting means 25 is released after the completion of the separation of the mold 20, the second panel 22 is automatically lifted by the spring 24 formed between the second panel 22 and the case 23, The panel 22 is moved forward.

When the mold 20 is separated from the concrete as described above, the plurality of projections 22a formed on the second panel 22 are first separated, and then the first panel 21 is separated As the area of contact of the panels 21 and 22 with the concrete surface is reduced, the adhesion force between the panels 21 and 22 and the concrete surface is reduced, and the concrete panel is easily separated from the cured concrete wall.

Therefore, the work for separating and dismounting the mold 20 is convenient, and productivity can be improved. Further, when the panels (21, 22) of the mold (20) are separated from each other, the pieces of concrete are not separated from the concrete surface, so that a smooth concrete surface can be cured. It is possible to reuse the panels 21 and 22 of the formwork 20 a plurality of times because the concrete pieces do not adhere to the molds 21 and 22. In addition, since the second panel 22 is not separated from the case 23, it is convenient to store and transfer the form 20.

≪ Third Embodiment >

4 is a cross-sectional view illustrating a mold 30 that is easy to separate from concrete according to a third embodiment of the present invention.

4, the mold 30, which is easy to separate from the concrete according to the third embodiment, includes a first panel 31, a second panel 32, a case 33 and a second panel retracting means 35).

A plurality of holes 31a are formed in the first panel 31 and a plurality of protrusions 32a are formed in the second panel 32 at positions corresponding to the holes 31a. At this time, an inclined surface is formed at a lower end of the plurality of holes 31a formed in the first panel 31 and at a lower end of the plurality of protrusions 32a formed in the second panel 32. [

 When the first panel 31 and the second panel 32 are coupled, the surface of the first panel 31 contacting the concrete surface is perfectly flat.

The first panel 31 is formed integrally with the case 33 and the second panel 32 is formed inside the case 33.

Since the second panel 32 is not separated from the case 33, it is convenient to store and transfer the form 30.

The second panel retracting means 35 is formed to slide the second panel 32 in a direction parallel to the first panel 31 when the second panel 32 is separated from the concrete surface. do.

The second panel retracting means 35 may be formed in various shapes, for example, in the form of a handle, or in the form of a lever.

The plurality of holes 31a formed in the first panel 31 and the plurality of holes 31a formed in the second panel 32 before the concrete is poured in a state where the first panel 31 and the second panel 32 are coupled, (Not shown) may be additionally formed to prevent the first panel 31 and the second panel 32 from being separated by the inclined surfaces formed at the lower ends of the protrusions 32a .

Hereinafter, a process of separating the mold 30, which is easy to separate from the concrete according to the third embodiment, from the concrete surface will be described.

First, concrete is poured in a state where the first panel 31 and the second panel 32 are coupled, and after the concrete poured is cured, the first panel 31 and the second panel 32 are poured into the concrete . At this time, while the concrete is cured, the case 33 is fixed in a state buried in the ground in a state where the first panel 31 and the second panel 32 are coupled.

A support base (not shown) is disposed to support the first panel 31 and the second panel 32 in a state where the first panel 31 and the second panel 32 are engaged.

When the first panel 31 and the second panel 32 are separated, the second panel 32 is first slid in a direction parallel to the first panel 31 to separate the second panel 32, The first panel 31 is separated after the separation of the first panel 32 is completed.

If the second panel 32 is pushed downward by means of the second panel retracting means 35, when the second panel 32 is moved downward, a plurality of The second panel 32 is slid by the inclined surface formed at the lower end of the hole 31a and the plurality of protrusions 32a formed on the second panel 32 so that the second panel 32 is pushed rearward, The second panel 32 is brought into close contact with the rear of the case 33 by pulling the second panel 32 to the rear of the case 33. Then, So that the first panel 31 is separated from the concrete surface while the case 33 is also pulled backward.

When the mold 30 is separated from the concrete as described above, the plurality of protrusions 32a formed on the second panel 32 are first separated and then the first panel 31 is separated. The contact area between the panels 31 and 32 and the concrete surface is reduced so that the adhesion force between the panels 31 and 32 and the concrete surface is reduced and the concrete panel is easily detached from the cured concrete wall. Further, since the separating direction is not the vertical direction but the shearing direction, the detachment of the concrete piece from the concrete surface is further reduced.

Therefore, the work for separating and unfolding the mold 30 is convenient, and productivity can be improved. In addition, when the panels (31, 32) of the mold (30) are separated, the concrete pieces are not separated from the concrete surface, so that a smooth concrete surface can be cured. The concrete pieces do not adhere to the panels 31 and 32, so that the respective panels 31 and 32 of the mold 30 can be reused many times. In addition, since the second panel 32 is not separated from the case 33, it is convenient to store and transfer the form 30.

<Fourth Embodiment>

FIG. 5 is a cross-sectional view illustrating a mold 40 that is easy to separate from concrete according to a fourth embodiment of the present invention.

5, the mold 40, which is easy to separate from the concrete according to the fourth embodiment, includes a first panel 41, a second panel 42, a case 43, a second panel retracting means 45, a forward / backward block 46, and a forward / backward spring 47.

A plurality of holes 41a are formed in the first panel 41 and a plurality of protrusions 42a are formed in the second panel 42 at positions corresponding to the holes 41a. At this time, additional grooves are formed on the upper surface of the plurality of holes 41a formed in the first panel 41, and the additional grooves 42a are formed on the upper surface of the plurality of projections 42a formed on the second panel 42, An additional extension piece is formed in a shape corresponding to the shape of the protrusion.

The forward and backward blocks 46 are formed at the lower ends of the plurality of holes 41a formed in the first panel 41. The forward and backward blocks 46 are supported by the forward and backward springs 47 It is possible to move up and down.

When the first panel 41 and the second panel 42 are coupled, the surface of the first panel 41 contacting the concrete surface is perfectly flat.

The first panel 41 is formed integrally with the case 43 and the second panel 42 is formed inside the case 43.

Since the second panel 42 is not separated from the case 43, it is convenient to store and convey the form 40. [

The second panel retracting means 45 is formed to slide the second panel 42 in a direction parallel to the first panel 41 when separating the second panel 42 from the concrete surface. do.

The second panel retracting means 45 may be formed in various shapes, for example, in the form of a handle, or in a form of a lever.

Hereinafter, the process of separating the mold 40, which is easy to separate from the concrete according to the fourth embodiment, from the concrete surface will be described.

The first panel 41 and the second panel 42 are poured in a state where the first panel 41 and the second panel 42 are coupled to each other. After the poured concrete is cured, the first panel 41 and the second panel 42, . At this time, while the concrete is cured, the case 43 is fixed in a state where it is buried on the ground in a state where the first panel 41 and the second panel 42 are engaged.

A support base (not shown) is disposed to support the first panel 41 and the second panel 42 in a state where the first panel 41 and the second panel 42 are engaged.

When the first panel 41 and the second panel 42 are separated, the second panel 42 is first slid and moved in a direction parallel to the first panel 41, The first panel 41 is separated after the separation of the first panel 42 is completed.

If the second panel 42 is pushed downward by means of the second panel retracting means 45, the advancing / retreating block 46 formed at the lower end of the plurality of holes 41a formed in the first panel 41, And the second panel 42 is slid downward in parallel with the first panel 41 while being lowered by the forward and backward springs 47. At this time, an additional extension formed on the plurality of projections 42a of the second panel 42 is separated from the additional groove formed in the plurality of holes 41a of the first panel 41, The second panel 42 is brought into close contact with the rear of the case 43 so that the case 43 is separated from the case 43. As a result, The first panel 41 is separated from the concrete surface.

Since the plurality of protrusions 42a formed on the second panel 42 are first separated and then the first panel 41 is detached, when the mold 40 is separated from the concrete as described above, The contact area between the panels 41 and 42 and the concrete surface is reduced so that the adhesion force between the panels 41 and 42 and the concrete surface is reduced and the concrete panel is easily detached from the cured concrete wall.

Therefore, the work for separating and disassembling the mold 40 is convenient, and productivity can be improved. When the panels (41, 42) of the mold (40) are separated from each other, the concrete pieces are not separated from the concrete surface, so that a smooth concrete surface can be cured. The pieces of concrete 41 are not adhered to the panels 41 and 42, so that the respective panels 41 and 42 of the mold 40 can be reused many times. In addition, since the second panel 42 is not separated from the case 43, it is convenient to store and transfer the mold 40.

<Fifth Embodiment>

FIG. 6 is a sectional view showing a mold 50 which is easy to separate from concrete according to a fifth embodiment of the present invention.

6, the mold 50, which is easy to separate from the concrete according to the fifth embodiment, includes a first panel 51, a second panel 52, a spring 54, a case 53, And two panel retracting means (55).

A plurality of holes 51a are formed in the first panel 51 and a plurality of protrusions 52a are formed in the second panel 52 at positions corresponding to the holes 51a, When the first panel 51 and the second panel 52 are combined, the surface of the first panel 51 abutting the concrete surface is perfectly flat.

The plurality of protrusions 52a of the second panel 52 are formed of an elastic body having a property of being restored to an original set angle by an elastic force.

The first panel 51 is formed integrally with the case 53 and the second panel 52 is formed inside the case 53.

The spring 54 is mounted between the second panel 52 and the case 53 so that the second panel 52 can move in the forward and backward directions in the inner space of the case 53, (52) is not separated from the case (53), it is convenient to store and transport the mold (50).

The spring (54) is fixed to at least one of the second panel (52) and the case (53).

The second panel retracting means 55 is formed to pull the second panel 52 toward the rear of the case 53 when the second panel 52 is separated from the concrete surface.

The second panel retracting means 55 may be formed in various shapes, for example, in the form of a handle or a lever.

Hereinafter, a process of separating the mold 50, which is easy to separate from the concrete according to the fifth embodiment, from the concrete surface will be described.

First, the concrete is poured in a state where the first panel (51) and the second panel (52) are coupled, and the first panel (51) and the second panel (52) . At this time, while the concrete is cured, the case 53 is fixed in a state where it is buried on the ground in a state where the first panel 51 and the second panel 52 are engaged.

A support base (not shown) is disposed to support the first panel 51 and the second panel 52 in a state where the first panel 51 and the second panel 52 are engaged.

When the first panel (51) and the second panel (52) are separated, the second panel (52) is pulled out from the rear to separate the second panel (52) (51).

Specifically, when the second panel 52 is pulled to the rear of the case 53 using the second panel retracting means 55, the plurality of protrusions 52a of the second panel 52, which is formed of an elastic body, When the second panel 52 is pulled back to the rear of the case 53, the second panel 52 is moved to the rear of the case 53 The first panel 51 is separated from the concrete surface while the case 53 is also pulled backward.

When the second panel retracting means 55 is released after the completion of the separation of the dies 50, the second panels 52 are automatically lifted by the spring 54 formed between the second panel 52 and the case 53, The panel 52 is moved forward so that the plurality of protrusions 52a formed of the elastic body are restored to their original shape.

When the mold 50 is separated from the concrete as described above, the plurality of protrusions 52a formed on the second panel 52 are gradually separated from each other while being bent back, and then the first panel 51 The area of contact of the panels 51 and 52 with the concrete surface is reduced so that the adhesion force between the panels 51 and 52 and the concrete surface is reduced and the concrete panels are easily separated from the cured concrete wall .

Therefore, the work of separating and dismounting the form 50 is convenient, and the productivity can be improved. Also, when the panels (51, 52) of the mold (50) are separated, the pieces of concrete are not separated from the concrete surface, so that a smooth concrete surface can be cured. The pieces of concrete 51 do not adhere to the panels 51 and 52, so that the respective panels 51 and 52 of the mold 50 can be reused many times. In addition, since the second panel 52 is not separated from the case 53, it is convenient to store and transport the mold 50.

<Sixth Embodiment>

7 is a cross-sectional view illustrating a mold 60 that is easy to separate from concrete according to a sixth embodiment of the present invention.

7, the mold 60, which is easy to separate from the concrete according to the sixth embodiment, includes a first panel 61, a second panel 62, a spring 64, a case 63, And two panel retracting means (65).

A plurality of holes 61a are formed in the first panel 61 and a plurality of protrusions 62a are formed in the second panel 62 at positions corresponding to the holes 61a, When the first panel 61 and the second panel 62 are combined, the surface of the first panel 61 abutting the concrete surface becomes perfectly flat.

The first panel 61 is formed integrally with the case 63 and the second panel 62 is formed inside the case 63. A hole is formed in the upper part of the case so that the second panel (62) can move upward through the hole.

The plurality of protrusions 62a of the second panel 62 are connected to the first panel 61 by the spring 64 so that the second panel 62 moves upward The plurality of projections 62a of the second panel 62 are folded inward of the case 63 by the spring 64. [

Here, since the second panel 62 is not separated from the case 63, it is convenient to store and convey the form 60.

The second panel retracting means 65 may raise the second panel 62 upward to separate the protrusion 62a of the second panel 62 from the concrete surface when the second panel 62 is separated from the concrete surface. The first panel 61 is separated from the first panel 61 by pulling the second panel 62 to the rear of the case 63. [

The second panel retracting means 65 may be formed in various shapes, for example, as a handle or as a lever.

Hereinafter, a process of separating the mold 60, which is easy to separate from the concrete according to the sixth embodiment, from the concrete surface will be described.

First, concrete is poured in a state where the first panel (61) and the second panel (62) are coupled, and after the poured concrete is cured, the first panel (61) and the second panel (62) . At this time, while the concrete is curing, the case 63 is fixed in a state buried in the ground in a state where the first panel 61 and the second panel 62 are engaged.

A support (not shown) is disposed to support the first panel 61 and the second panel 62 when the first panel 61 and the second panel 62 are engaged.

When separating the first panel 61 and the second panel 62, the second panel 62 is first moved upward through a hole formed in the upper portion of the case 63, The first panel 61 is separated after the separation of the first panel 62 is completed.

Specifically, when the second panel 62 is moved upward through the hole formed in the upper portion of the case 63 using the second panel retracting means 65, the first panel 61 and the spring 64 The plurality of protrusions 62a of the second panel 62 connected to the second panel 62 are first separated from each other while gradually folding inward of the case 63 as shown in FIG. When the second panel 62 is pulled rearward of the case 63 after the protrusion 62a is completely separated from the case 63, the first panel 61 is pulled back from the concrete surface Separated.

When the second panel retraction means 65 is released after the completion of the separation of the mold 60, the plurality of protrusions 62a of the second panel 62 and the spring 62 formed on the first panel 61, The plurality of protrusions 62a of the second panel 62 are automatically restored to the original shape by the protrusion 64. [

When the mold 60 is separated from the concrete as described above, the plurality of protrusions 62a formed on the second panel 62 are gradually separated from each other while being folded toward the inside of the case 63, Since the first panel 61 is separated, the area in which the panels 61 and 62 contact the concrete surface is reduced, so that the adhesion between the panels 61 and 62 and the concrete surface is reduced, It easily separates from the concrete wall.

Therefore, the work for separating and disassembling the formwork 60 is convenient, and productivity can be improved. In addition, when separating the panels 61 and 62 of the mold 60, the concrete pieces are not separated from the concrete surface, so that a smooth concrete surface can be cured. (61, 62) of the mold (60) can be reused many times because the concrete pieces do not adhere to the panels (61, 62). In addition, since the second panel 62 is not separated from the case 63, it is convenient to store and transfer the form 60.

As described above in detail, the molds 10, 20, 30, 40, 50 and 60, which are easy to separate from the concrete according to the present invention, include a first panel having a plurality of holes and a plurality of projections When the molds are formed by overlapping the formed second panels, the contact area between each panel and the concrete surface is reduced when the form is separated from the concrete, so that the adhesion between each panel and the concrete surface is reduced, It is easy.

In addition, it is possible to improve the productivity by separating and disassembling the formwork, and when the respective panels of the form are separated, the pieces of concrete are not attached to the surface of the panel so that they can be cured with a smooth concrete surface And the concrete pieces do not adhere to the respective panels of the form, so that the panels of the form can be reused many times. In addition, since the second panel is structured so as not to be detached from the case, there is an advantage in that it is convenient to store and convey the form.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the following claims and their equivalents.

&Lt; Embodiment 1 >
10: Form
11: First panel
11a: hole
12: second panel
12a:
13: Case
15: second panel retracting means
16: Support
&Lt; Embodiment 2 >
20: Form
21: First panel
21a: hole
22: second panel
22a:
23: Case
24: spring
25: second panel retracting means
&Lt; Third Embodiment >
30: Form
31: First panel
31a: hole
32: second panel
32a:
33: Case
35: second panel retracting means
<Fourth Embodiment>
40: Form
41: first panel
41a: hole
42: Second panel
42a:
43: Case
45: second panel retracting means
46: Advancement block
47:
<Fifth Embodiment>
50: Form
51: First panel
51a: hole
52: second panel
52a:
53: Case
54: spring
55: second panel retracting means
&Lt; 6 Embodiment &
60: Form
61: first panel
61a: hole
62: second panel
62a:
63: Case
64: spring
65: second panel retracting means

Claims (4)

A first panel having a plurality of holes formed therein;
A second panel having a plurality of protrusions formed at positions corresponding to the holes; / RTI &gt;
Wherein the plurality of protrusions of the second panel are formed of an elastic body.
The method according to claim 1,
The second panel is movable in the forward and backward direction by a spring in an inner space of the case,
Wherein the protrusions of the second panel are separated from the concrete while being bent backward.
A first panel having a plurality of holes formed therein;
A second panel having a plurality of protrusions formed at positions corresponding to the holes; / RTI &gt;
Wherein the plurality of protrusions of the second panel are connected to the first panel by a spring.
The method of claim 3,
The second panel is movable upward through a hole formed in an upper surface of the case,
And the projections of the second panel are separated from the concrete by being folded inward of the case by the spring.

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