KR101938357B1 - Spacer of concrete and reinforcing bar - Google Patents

Abstract

The present invention relates to an interval maintenance device of a mold and a reinforcing bar, and more specifically, to an interval maintenance device of a mold and a reinforcing bar implemented so as to reduce labor required for work and to shorten a period of time required for work by maintaining a gap between reinforcing bars, and simplifying a fixating process of a U bar in order to integrate the reinforcing bars. The interval maintenance device of a mold and a reinforcing bar comprises: a body which is formed to be lengthened in one direction, and which connects two reinforcing bars adjacent to each other on an edge among reinforcing bars; two insertion holes which are formed to be spaced from each other at the body, and which allow the two reinforcing bars to be individually inserted therein and fixated; and a suspending end which is formed to be extended at both end parts of the body, wherein the horizontal reinforcing bars are hung thereon and are limited in movement.

Description

[0001] SPACER OF CONCRETE AND REINFORCING BAR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a gap retaining mechanism, and more particularly, to a gap retaining mechanism for retaining a gap between a panel of a formwork and a reinforcing bar disposed therein, To a space maintaining mechanism of the apparatus.

Generally, in construction work or civil engineering work, in order to construct a concrete structure, a mold corresponding to the shape of the structure is installed, and the concrete is poured into the mold to be hardened.

Conventionally used formwork is mainly used for concrete form plywood. Depending on construction, hard fiber board, synthetic resin, aluminum panel, steel plate and the like are also used. At this time, before the concrete is poured into the mold, the reinforcing bars are inserted into the mold and the concrete is laid to increase the resistance to tensile, vibration and impact of the concrete.

When the above-mentioned reinforced concrete is laid, it is very important to secure a space between the form and the reinforcing steel in terms of proof strength and durability. Spacers (reinforcing bars) are used to maintain this spacing, and plastic spacers are used for application to complex and diverse members.

Korean Patent Registration No. 10-1068877 (registered on September 23, 2011) discloses a multifunctional spacer and a method for controlling the spacing of reinforcing bars using the same. According to the disclosed technology, the multifunctional spacer includes a reinforcing bar inserted into a reinforcing bar, an outer circumferential surface thereof contacting the inner surface of the reinforcing bar, and a center between the reinforcing bars and the mold, At least one body portion; And a reinforcing bar insertion portion formed from the outer circumferential surface of the body portion to the reinforcing bar insertion hole to guide insertion of the reinforcing bars into the reinforcing bar, wherein the body portion includes the reinforcing bar insertion portion and the reinforcing bar insertion portion, And a second body portion having a semi-elliptical shape, the second body portion being spaced apart from the first body portion by a predetermined distance in the longitudinal direction of the reinforcing bar insertion portion.

Korean Patent Registration No. 10-0381791 (Registered Apr. 14, 2014) discloses a mold space maintaining tool used for maintaining the spacing of both molds when constructing the inner and outer wall surfaces of concrete structures. The ball has a center hole formed at one side of the main body so as to allow penetration of the tie bolt; An insertion hole having an inner diameter larger than an inner diameter of the center hole at the other side of the body and having an outer diameter larger and an inner diameter gradually narrower toward the inner side so as to facilitate insertion of the plastic tube end; A supporting protrusion protruding from the inner circumferential surface of the insertion hole at predetermined intervals so as to stably support the outer circumferential surface of the plastic tube; And a support step formed to support an end portion of the plastic tube in a main body which is a boundary portion between the center hole and the insertion hole, and the main body is made of a cement mortar made of the same material as the concrete mortar, And an outer circumferential surface is provided with a rotation preventing portion for preventing the rotation while enhancing the adhesive force with the concrete mortar.

In the case where the reinforcing bars are laid by using the spacing holder as described above, a U bar is installed to connect adjacent reinforcing bars in order to integrate the reinforcing bars spaced apart from each other. Since the U bar and the reinforcing bars are bundled and fixed between the bars, There is a problem that it takes a considerable amount of labor and time to work while tying a wire.

Korean Patent No. 10-1068877 Korean Patent No. 10-0381791

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to solve the above problems and to provide a method of manufacturing a U- And a gap maintaining mechanism.

According to one aspect of the present invention, there is provided a means for solving the above problems, comprising: a body formed to have a length in one direction and connecting two reinforcing bars adjacent to each other at an edge of the reinforcing bar; Two insertion holes formed in the body so as to be spaced apart from each other and for inserting and fixing the two reinforcing bars, respectively; And a retaining protrusion formed on both ends of the body for restricting the horizontal reinforcement. The present invention also provides a mechanism for maintaining spacing between a mold and a reinforcing bar.

In one embodiment, the body includes: a first piece member extending to have a predetermined length in one direction; And second and third piece members extending perpendicularly from both sides of the first piece member and arranged side by side to each other to form the insertion hole.

In one embodiment, any one of the insertion holes is formed in a semi-elliptic shape.

In one embodiment, any one of the insertion holes is formed in an obliquely inclined semi-elliptic shape.

In one embodiment, any one of the second and third piece members is characterized in that protruding pieces are formed at both ends.

In one embodiment, the first piece member is characterized in that a plurality of first through holes are formed.

In one embodiment, each of the second and third piece members is characterized in that a plurality of second and third through holes are formed in each of the second and third piece members.

In one embodiment, the first through-hole and the second through third through-holes are formed so as to be shifted so as to be arranged on different vertical lines.

In one embodiment, the engaging jaw is formed at a predetermined distance from both ends of any one of the second and third piece members, and is formed so as to protrude vertically from any one of the second and third piece members .

In one embodiment, a connecting edge of the first and second piece members or a connecting edge of the first and third piece members may be formed to have a predetermined length in the direction of the center of the body starting from the catching jaw And an extended perforated line is formed.

In one embodiment, the latching jaw is formed to be bent in the center direction of the body.

According to the present invention, it is possible to simplify the fixing work of the U-bar for integrating the reinforcing bars while maintaining the spacing between the reinforcing bars, thereby reducing labor required for the work, .

According to the present invention, it is possible to maintain and maintain the distance between the formwork and the reinforcing bars, thereby preventing defects due to the warping of the reinforcing bars when the concrete is laid.

FIG. 1 is a perspective view illustrating a state in which a reinforcing bar and a U-bar are connected to each other using a mold-and-reinforcing spacer holding mechanism according to a first embodiment of the present invention.
Fig. 2 is a plan view of a gap maintaining mechanism between a form and a reinforcing bar shown in Fig. 1. Fig.
Fig. 3 is a front view of the gap maintaining mechanism between the form and the reinforcing bar shown in Fig. 1. Fig.
Fig. 4 is a rear view of the composite mold and the reinforcing bar gap maintaining mechanism shown in Fig. 1;
Fig. 5 is a view showing a second example of the insertion hole shown in Fig. 2. Fig.
Fig. 6 is a view showing a third example of the insertion hole shown in Fig. 2. Fig.
Fig. 7 is a view showing a second example of the latching jaw shown in Fig. 3;
8 is a plan view of a gap maintaining mechanism between a form and a reinforcing bar according to a second embodiment of the present invention.
FIG. 9 is a front view of the gap retaining mechanism of the formwork reinforcement shown in FIG. 8; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

The meaning of the terms described in the present invention should be understood as follows.

The terms "first "," second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Hereinafter, a mechanism for maintaining spacing between a die and a reinforcing bar according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view illustrating a state in which a reinforcing bar and a U-bar are connected to each other using a mold-and-reinforcing spacer holding mechanism according to a first embodiment of the present invention.

Referring to FIG. 1, the gap maintaining mechanism between the form and the reinforcing bars may include a U-bar (not shown) for integrating the reinforcing bars S while maintaining a gap between the panel of the formwork and the reinforcing bars S disposed therein, U) to the reinforcing bars.

The U-bar U includes a pair of linear portions U1 and U2 arranged in parallel to each other in a shape of '11', and a pair of linear portions U1 and U2, U2, U3, U3, U3, and U3.

To this end, the gap maintaining mechanism between the form and the reinforcing bar includes a body 100, an insertion hole 200, and a latching jaw 300.

FIG. 2 is a plan view of a gap maintaining mechanism between the form and the reinforcing bar shown in FIG. 1, FIG. 3 is a front view of a gap maintaining mechanism between the form and the reinforcing bars shown in FIG. 1, FIG. 4 is a cross- Fig.

 Referring to FIGS. 1 to 4, the body 100 is formed to have a length in one direction, and connects two adjacent reinforcing bars S at the edges of the reinforcing bars.

In the body 100, linear portions U1 and U2 of the U-bar are seated on upper sides of both ends.

In one embodiment, the body 100 is characterized in that the die is pushed to the end to secure the distance between the reinforcement S and the die.

In one embodiment, the body 100 is made of steel.

In one embodiment, the body 100 is characterized in that it includes a first piece member 110, a second piece member 120 and a third piece member 130.

The first piece member 110 is extended to have a predetermined length in one direction.

The second piece 120 extends vertically from one side of the first piece 110 to form the insertion hole 200.

The third piece member 130 extends vertically from the other side of the first piece member 110 and is inserted into the insertion hole 200 facing the insertion hole 200 formed in the second piece member 120 200 are formed.

The insertion holes 200 are formed at two locations on the body 100 and are spaced apart from each other, thereby inserting and fixing the two reinforcing bars S respectively. At this time, the two reinforcing bars (S) can maintain and secure a separation distance by the distance between the insertion holes (200).

In one embodiment, the insertion hole 200 is formed in a semi-elliptic shape corresponding to the outer periphery of the reinforcing bar S so as to be fitted in the outer periphery of the reinforcing bar S.

Fig. 5 is a view showing a second example of the insertion hole shown in Fig. 2. Fig.

5, the insertion hole 201 of one of the insertion holes 200 and 201 is formed in an obliquely inclined semi-elliptical shape. At this time, when the reinforcing bars are drawn into the insertion holes 200 and 201, the body 100 is tilted obliquely to pull the reinforcing bars into one insertion hole 201, and the reinforcing bars S are inserted into the insertion holes 201, The body 100 is horizontally rotated to fix the reinforcing bars S to the insertion holes 201 to prevent the reinforcing bars S from being separated from the insertion holes 201 can do.

Fig. 6 is a view showing a third example of the insertion hole shown in Fig. 2. Fig.

In one embodiment, referring to FIG. 6, the insertion holes 201 and 202 are each formed in a semi-elliptical shape inclined at an angle.

The mechanism for maintaining the spacing between the formwork and the reinforcing bars as described above can improve the fixing force of the reinforcing bars to prevent the reinforcing bars from being separated from the reinforcing bars and improve the quality of the reinforcing concrete.

The latching jaws 300 extend from both ends of the body 100 to restrain the horizontal reinforcing bars.

In one embodiment, the catching jaw 300 is formed at both ends of any one of the second and third piece members 120, 130, and the second and third piece members 120 (130 ) In the vertical direction.

The connection edge of the first piece member 110 and the second piece member 120 or the connecting edge of the first piece member 110 and the third piece member 130 may be formed in the coupling edge 300 And a perforated line (not shown) extending from the center of the body 100 toward the center of the body 100 so as to have a predetermined length is formed.

Fig. 7 is a view showing a second example of the latching jaw shown in Fig. 3;

In one embodiment, referring to FIG. 7, the latching jaw 300 includes an extended portion 310 and a latching portion 320.

The extension 310 extends from both ends of the body 100 perpendicularly to the longitudinal direction of the body 100.

The latching part 320 extends from an end of the extension part 310 to enclose and fix the upper end of the U-bar.

In one embodiment, the latching part 320 is formed to be bent toward the center of the body 100 as it goes to the upper part.

According to the mechanism for maintaining the spacing between the formwork and the reinforcing bar constructed as described above, it is possible to simplify the fixing operation of the U-bar for integrating the reinforcing bars, thereby reducing the labor required for the work and shortening the working time And the fixing force of the U-bar to be seated can be increased.

FIG. 8 is a plan view of a gap maintaining mechanism between a form and a reinforcing bar according to a second embodiment of the present invention, and FIG. 9 is a front view of a gap maintaining mechanism of the form reinforcing bar shown in FIG. 2 and 3 are the same members having the same functions and shapes, repetitive description will be omitted.

7 and 8, the gap maintaining mechanism between the form and the reinforcing bar may include a first through-hole (not shown) for introducing the concrete liquid into the body 100 to fill the concrete liquid into the body 100, A through hole 111, a second through hole 121, and a third through hole (not shown) are formed.

The first piece member 110 is formed with a plurality of first through holes 111. The second piece member 120 and the third piece member 130 have second through holes 121 facing each other, And third through holes (not shown) are formed.

In one embodiment, the first through-hole 111, the second through-hole 121, and the third through-hole (not shown) are formed to be shifted so as to be arranged on different vertical lines.

The spacing structure of the mold and the reinforcing bar constructed as described above is arranged such that the first through-hole 111 and the second through-hole 121 and the third through-hole (not shown) are shifted from each other, The concrete liquid can be firmly embedded in the inside of the body 100 while filling the inside of the body 100 and the rigidity against the normal stress can be ensured.

As described above, the embodiment of the present invention is not limited to the above-described apparatus and / or method, but may be implemented by a program for realizing a function corresponding to the configuration of the embodiment of the present invention and a recording medium on which the program is recorded And the present invention can be easily implemented by those skilled in the art from the description of the embodiments described above. 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, It belongs to the scope of right.

S: Rebar
U: U-bar
100: Body
110: first member
111: first through hole
120: second member
121: second through hole
130: third member
131: protruding piece
200, 201, 202: through hole
300: hanging jaw

Claims (5)

A body formed to have a length in one direction and connecting two reinforcing bars adjacent to each other at the edges of the reinforcing bars;
Two insertion holes formed in the body so as to be spaced apart from each other and for inserting and fixing the two reinforcing bars, respectively; And
And a locking jaw extending from both ends of the body for restricting the horizontal reinforcing bars,
[0028]
An extension extending perpendicularly to the longitudinal direction of the body from both ends of the body; And
And an engaging portion extending from an end of the extended portion to enclose and fix the upper end of the U-
The body,
A first piece member extending so as to have a predetermined length in one direction; And
And second and third piece members extending perpendicularly from both sides of the first piece member and arranged parallel to each other to form the insertion hole,
The first piece member
A plurality of first through-holes are formed, and a second through hole and a third through-hole facing each other are formed in the second piece member and the third piece member,
Wherein the first through-hole, the second through-hole, and the third through-hole are shifted so as to be arranged on different vertical lines.
delete The method according to claim 1,
Wherein one of said insertion holes
Wherein the mold is formed in a semi-elliptical shape.
The method of claim 3,
Wherein one of said insertion holes
Wherein the mold is formed in an oblique semi-elliptical shape.
The method according to claim 1,
And the selected one of the second and third member (s)
Wherein a protruding piece is formed at both ends of the mold.

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