KR101831427B1 - Rebar-inserted Cap for Removing Form - Google Patents

Abstract

A rebar cap for removing a form includes a horizontal support portion and a vertical support portion. The horizontal support portion has a larger diameter than that of a form through hole to penetrate a bar for a vertical member. The horizontal support portion is coupled to an upper surface of the form. The horizontal support portion is provided with a bent portion. The vertical support portion is vertically extended from the horizontal support portion. The vertical support portion has a smaller diameter than or an equal diameter to that of the form through hole. The vertical support portion is inserted into the form through hole. The present invention is able to reduce production costs of the form and a construction period.

Description

{Rebar-inserted Cap for Removing Form}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced cap, and more particularly, to a reinforced concrete cap for deformation of a form for demolding a form without damage.

When building apartments, buildings, and residential buildings, it is necessary to form a basic shape using a form, and to place and cure concrete in it. Formwork is a temporary construction used until the concrete is cured. The formwork keeps the concrete in a certain shape and dimensions, prevents the leakage of moisture required for its hardening, and prevents external impact from being applied to the concrete.

It is common for the form to be dismantled into individual members after the casting and curing of the concrete and reassembled in the next layer. However, when the concrete is attached to the surface of the mold in the process of disassembling the mold and the mold is broken in the process of disassembling, it may be difficult to reuse the mold.

In particular, a vertical member such as a column supporting a load is formed in such a manner that a horizontal member such as a slab is vertically penetrated. For this purpose, a reinforcement through-hole of a reinforcing bar for a vertical member Many drill holes. However, in the process of pouring concrete to form a horizontal member, concrete may flow into the space between the reinforcing bar and the reinforcing bar, and as a result, the form is severely damaged at the portion of the reinforcing bar when the form is demolded It is occurring frequently.

Japanese Patent Publication No. 1077563 discloses a reusable europium foam for a formwork, which suggests a method of applying a nitrified coating layer on the surface of a metal sheet constituting the europium. Through such a method, Japanese Patent Registration No. 1077563 facilitates disassembly of eurofoam, minimizes adhesion of concrete to the eurofoam surface, and improves the reusability of eurofoam.

However, also in Patent Publication No. 1077563, there is a limit to prevent concrete inflow in the reinforcing bar through which reinforcing bar for vertical member is inserted, and to prevent breakage of the form in the reinforcing bar through hole caused thereby.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art,

First, when the form is to be demolded, the form can easily be prevented from being broken at the portion of the form opening where the reinforcing bars for vertical members are inserted,

Second, it is intended to provide a reinforced cap for die deformation that can reduce mold production cost, shorten the construction period, and save labor costs by allowing molds to be completely demolded and reused.

In order to accomplish the above object, the present invention provides a reinforced concrete cap for deformation of a form, comprising a horizontal support, a vertical support, and the like.

The horizontal support has a larger diameter than the form apertures for penetrating the reinforcing bars for vertical members and can be coupled to the upper surface of the formwork. The horizontal support may be provided with a bend that is radially spaced apart and formed circumferentially and that is bent in the direction of the vertical support.

The vertical support may extend vertically in the horizontal support and may have a diameter less than or equal to that of the form aperture and be inserted into the form aperture. The vertical support may have a larger diameter than the bend region of the horizontal support.

In the reinforcing cap for die deformation according to the present invention, the horizontal support portion may have an insertion hole at the center thereof.

In the rebar cap for die deformation according to the present invention, the bend of the horizontal support may include a plurality of sub-bends radially.

In the reinforced cap for die deformation according to the present invention, the bent portion of the horizontal support portion may include a plurality of notches continuously radially spaced apart from each other in a direction opposite to the direction in which the vertical support portion is located.

In the reinforced cap for die deformation according to the present invention, the bent portion of the horizontal support portion may be radially spaced apart from the surface in the direction in which the vertical support portion is positioned, may be continuous in the circumferential direction, and may include a plurality of step portions at positions corresponding to the notched portion.

In the reinforcing cap for die deformation according to the present invention, the step portion of the horizontal support portion can be formed in a shape rising radially away from the center of the insertion hole.

In the reinforcing cap for die deformation according to the present invention, the vertical supporting portion may have a coupling protrusion on the outer surface thereof.

According to the present invention, it is possible to minimize the damage of the formwork in the through hole where the reinforcing bar for the vertical member is inserted when the form is demolded. Also, it is possible to minimize the impact of the impact generated when the form is demolded to the concrete surface.

According to the present invention, since the mold can be separated and reused, the production cost of the mold can be reduced, the construction period can be shortened, and the labor cost can be greatly reduced.

1 is a perspective view showing an upper part of a slab die provided with a reinforcing cap according to the present invention.
2A to 2C are a perspective view, a sectional view and a partially enlarged cross-sectional view showing a first embodiment of a reinforcing cap according to the present invention.
Figures 3a-3g are cross-sectional views illustrating a method of using a first embodiment of a reinforcing cap in accordance with the present invention.
4A and 4B are a perspective view and a cross-sectional view showing a second embodiment of the reinforcing cap according to the present invention.
5A and 5B are a perspective view and a cross-sectional view showing a third embodiment of the reinforcing cap according to the present invention.
6A and 6B are a perspective view and a cross-sectional view showing a fourth embodiment of the reinforcing cap according to the present invention.
7 is a cross-sectional view showing a method of using a third embodiment of a reinforcing cap according to the present invention.

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

1 is a perspective view showing an upper part of a slab die provided with a reinforcing cap according to the present invention.

As shown in FIG. 1, when forming a reinforced concrete structure, a slab form 100 for forming a horizontal member such as a slab, a columnar bar 200 for forming a column as a vertical member, and the like may be used And the pillar reinforcement 200 may be disposed in a structure that passes through the slab form 100 vertically. The reinforcing cap 300 according to the present invention may be coupled to a portion where the pillar 200 is inserted into the slab form 100.

The slab formwork 100 can be constructed by horizontally connecting a plurality of euro forms. The Euroform can be composed of a main panel, a reinforcing member, and the like.

The main panel can be composed of rectangular plates. The main panel can be composed of one integral panel or two separated panels in the width direction and a reinforcing material in the panel. The main panel may be made of wood, metal, plastic or the like, but it is preferable that the main panel is made of a lightweight material. The lightweight material may be a resin such as aluminum or polypropylene, or a fiberglass- And reinforced plastic (FRP).

The reinforcing member can be coupled to one side of the main panel. The reinforcing member can be composed of a frame, a reinforcing bar, or the like.

The frame may be shaped to protrude a predetermined height in the width direction along the edge of the main panel. The frame can be formed in a box shape while forming an open space in the protruding direction. The frame can form a plurality of engagement apertures in the protruding portion. The engaging apertures can be used to engage adjacent Eurofoams when the Eurofoam is coupled in all directions. A bolt may be inserted into one side of the coupling aperture and a nut may be coupled to the opposite side.

The reinforcing bar reinforces the support of the main frame by the frame, and can be engaged with the main panel in the direction in which the frame protrudes. The reinforcing bars may have one or more than one and may be joined horizontally or vertically.

The pillar reinforcement 200 can be coupled to the slab formwork 100 while allowing a plurality of slab formworks 100 to pass up and down in the area where the pillars are formed.

A plurality of die holes FH penetrating up and down may be formed in the slab die 100 into which the columnar bars 200 are inserted. The form hole FH may be formed to be larger than the largest diameter of the pillar 200 of the present invention. For example, when the diameter of the used columnar bar 200 is 10, 13, 16, 19, 22 or 25 mm, the form hole FH is formed by a barrel cap 25 mm which is the longest commercial diameter of the columnar bar 200 300, for example, 27 mm or more.

The lower side of the reinforcing cap 300 is inserted and fixed in the form hole FH and the upper side of the reinforcing cap 300 is coupled to the upper surface of the slab form 100 so that concrete can be introduced between the slab form 100 and the pillar 200 So that a spacing space can be avoided.

2A to 2C are a perspective view, a sectional view and a partially enlarged cross-sectional view showing a first embodiment of a reinforcing cap according to the present invention.

2A to 2C, the reinforcing cap 300 according to the present invention may be composed of a horizontal support portion 310, a vertical support portion 320, and the like. The reinforcing cap 300 may have a horizontal supporting part 310 and a vertical supporting part 320 integrally or separately. The reinforcing cap 300 may be made of plastic, and the material thereof is not limited to a specific one.

The horizontal support 310 may be a circular plate and its diameter may be greater than the diameter of the form hole FH. At least a portion of the edge of the horizontal support 310 may engage the upper surface of the slab formwork 100. The horizontal support 310 may have an insertion hole RH through which the columnar bar 200 is inserted in the center.

The horizontal support 310 may have a bend A that can be selectively folded from above to below, i. E., In the direction of the vertical support 320. The bent portion A may be configured to be radially spaced apart from the insertion hole RH and continuous in the circumferential direction.

The bend A of the horizontal support 310 may include a plurality of radially spaced sub-bends. As shown in Figs. 2A and 2B, the insertion hole RH provided at the center can be configured to have the smallest diameter of the columnar bar 200 that can be used, for example, a diameter of 10 mm. The first sub-bent portion a1, which is formed closest to the insertion hole RH, can be configured to have a second small diameter of the columnar bar 200 that can be used, for example, a diameter of 13 mm. The second sub-bent portion a2, which is formed to be the second closest to the insertion hole RH, can be configured to have a third small diameter of the columnar bar 200 that can be used, for example, a diameter of 16 mm.

Thus, when the bent portion A is divided into a plurality of sub-bent portions a1, a2, and a3, the pillar reinforcement 200 of various sizes can be accommodated. That is, when the column reinforcing bar 200 having a length of 10 mm from the top is inserted, it is possible to penetrate the lower portion with the insertion hole RH alone. As a result, the entire sub-bent portions a1, a2, a3) can be maintained without being bent. If the column reinforcing bar 200 of 13 mm is inserted from the upper portion, the insertion hole RH can not penetrate the lower portion and the first sub-bent portion a1 must be bent downward. As a result, the second sub- the outer sub-bent portions a2 and a3 including the sub-bent portions a1 and a2 can be maintained without being bent.

Through the action of the bent portion A, the bent portion A can close the spacing space between the form hole FH and the pillar 200. As a result, when the concrete is poured, FH and the pillar reinforcement 200 can be blocked or minimized.

The bent portion A of the horizontal support portion 310 can form a notched portion NT on the upper surface thereof, as shown in Fig. 2C. The notch NT can be formed to be continuous in the circumferential direction along the boundaries of the sub-bent portions a1, a2, and a3. The notch (NT) may be a wedge with a wide upper part and a narrower bottom part, that is, a triangular-shaped structure. The notch NT expands when the inner portion positioned in the direction of the insertion hole RH is bent downward due to a force applied from the upper portion so that the inner portion can be smoothly bent downward.

The bent portion A of the horizontal support portion 310 can form the step portion RS on the lower surface of the position corresponding to the notch portion NT as shown in Fig. The stepped portion RS can be continuously formed in a circumferential direction along the boundaries of the sub-bent portions a1, a2 and a3. The stepped portion RS can be configured in such a manner that the boundary portion rises from the first sub-bent portion a1 close to the insertion hole RH to the outer sub-bent portions a2 and a3. When the stepped portion RS is formed in this manner, the bent portion A can withstand a pressing force that increases with an increase in the thickness of the columnar bar 200 inserted at the upper portion.

The vertical support 320 may extend vertically from the horizontal support 310. The vertical support 320 may have a hollow communicating with the insertion hole RH and having a larger diameter than the insertion hole RH. The vertical support 320 may be cylindrical. The hollow of the vertical support 320 may be larger than at least the area of the bend A. The vertical support 320 can be inserted into the form aperture.

In FIGS. 2A to 2C, the reinforcing cap 300 is illustrated as a circular shape, but the shape of the reinforcing cap 300 is not limited to this, and may be various shapes such as a rectangle, pentagon, and the like. When the columnar bar 200 is rectangular, the shape of the insertion hole RH and the radial bending position of the bent portion A can be angular.

Figures 3a-3g are cross-sectional views illustrating a method of using a first embodiment of a reinforcing cap in accordance with the present invention.

As shown in FIG. 3A, a slab form 100 for forming a slab may be horizontally disposed. 3A shows a support member such as a beam for supporting the slab formwork 100 at the bottom and a reinforcing frame structure provided on the upper surface of the slab formwork 100 for the convenience of explanation.

3B, the mold cavity FH for inserting the pillar 200 may be formed to penetrate the slab mold 100 up and down. In order to use the reinforcing cap 300 according to the present invention, have.

As shown in Figs. 3c and 3d, the reinforcing cap 300 can be inserted downward into the form hole FH from above. In this case, the horizontal support 310 of the reinforcing cap 300 may engage with the upper surface of the slab formwork 100. The vertical support 320 of the reinforcing cap 300 may be inserted and fixed in the form hole FH.

As shown in FIG. 3E, the pillar reinforcement 200 can be inserted downward from above while penetrating the reinforcing cap 300. The bending of the sub-bent portions a1, a2 and a3 in the bent portion A can be determined according to the thickness of the pillar 200. [ FIG. 3E illustrates a case where the first sub-bent portion a1 is bent.

The concrete 400 may be laid on the upper surface of the slab form 100, as shown in FIG. At this time, since the reinforcing cap 300 closes the spacing space between the pillar reinforcement 200 and the form opening FH, the concrete 400 does not flow into the form opening FH.

The upper surface of the reinforcing cap 300 may be attached to the concrete when the slab form 100 is separated from the concrete 400 or demolded as shown in FIG. It can be easily separated from the through hole FH, thereby minimizing the breakage of the slab form 100 in the demolding process.

4A and 4B are a perspective view and a cross-sectional view showing a second embodiment of the reinforcing cap according to the present invention.

As shown in Figs. 4A and 4B, the reinforcing cap may not form the insertion hole RH. In this case, the region of the insertion hole RH may be formed in a radially cut-out shape.

5A and 5B are a perspective view and a cross-sectional view showing a third embodiment of the reinforcing cap according to the present invention.

5A and 5B, the reinforcing cap may have a coupling protrusion 330 on the outer surface of the vertical support portion 320. As shown in FIGS. The coupling protrusions 330 may be in the form of protrusions that are strip-shaped or irregularly spaced from the outer circumferential surface of the vertical support portion 320. The engaging protrusions 330 may have a plurality of engaging protrusions 330, and may be provided at least at a position corresponding to the engaging portion with the slab formwork 100, that is, the form hole FH. The coupling protrusions 330 may be made of an elastic material for easy coupling and separation.

6A and 6B are a perspective view and a cross-sectional view showing a fourth embodiment of the reinforcing cap according to the present invention.

As shown in FIGS. 6A and 6B, the reinforcing cap may have a configuration in which the insertion hole RH is not formed, and the coupling protrusion 330 is provided on the outer surface of the vertical support portion 320.

7 is a cross-sectional view showing a method of using a third embodiment of a reinforcing cap according to the present invention.

As shown in FIG. 7, when the coupling protrusions 330 are formed on the outer surface of the vertical support portion 320 as in the third embodiment of FIGS. 5A and 5B and the fourth embodiment of FIGS. 6A and 6B, The reinforcing cap 300 is detached from the concrete 400 together with the slab form 100 because the engaging protrusions 330 are coupled to the slab form 100 when separating or demolding the concrete 100 from the concrete 400. [ . Accordingly, it is possible to reduce the labor of separating the reinforcing cap 300 from the concrete 400, reduce the damage of the reinforcing cap 300, and increase the reuse ratio of the reinforcing cap 300.

Although the present invention has been described based on various embodiments, it is intended to exemplify the present invention. Those skilled in the art will be able to modify or modify the embodiments on the basis of the above embodiments. However, since the scope of the present application is defined by the following claims, such modifications and variations can be construed as being included in the following claims.

100: Slab formwork 200: Column rebar
300: Reinforcing cap 310: Horizontal support
320: vertical support part 330:
A: Bend RH: Insertion hole
NT: Notch RS: Short jaw
FH: Formwork hole 400: Concrete

Claims (7)

In a mold releasing reinforcing cap,
A horizontal support having a diameter larger than that of the form hole for penetrating the reinforcing bar for vertical member and engaging with the upper surface of the form; And
And a vertical support portion extending vertically from the horizontal support portion and having a diameter smaller than or equal to that of the form opening, the vertical support portion being inserted into the form opening,
Wherein the horizontal support comprises a bend which is radially spaced and circumferentially formed and which is bent in the direction of the vertical support,
Wherein the vertical support portion has a diameter larger than that of the bent portion,
The bent portion may include a plurality of sub-bent portions to accommodate the vertical member reinforcing bars of various sizes, wherein the bent portion includes a plurality of circumferentially continuous notches spaced radially from opposite sides of the direction in which the vertical supports are located, Wherein the bending portion includes a plurality of step portions which are radially spaced apart from each other in a direction in which the vertical support portion is positioned and are circumferentially continuous and corresponding to the notch portion, Lt; / RTI >
Wherein the step has a shape that increases as it is radially away from the center and thickens. The method according to claim 1,
Wherein the horizontal support portion has an insertion hole vertically passing through the center thereof. delete delete delete delete 3. The apparatus of claim 1 or 2, wherein the vertical support
And a coupling protrusion on the outer surface.

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