KR101765569B1 - Coupler for Steel Reinforcement and Manufacturing Method thereof - Google Patents
Coupler for Steel Reinforcement and Manufacturing Method thereof Download PDFInfo
- Publication number
- KR101765569B1 KR101765569B1 KR1020150172980A KR20150172980A KR101765569B1 KR 101765569 B1 KR101765569 B1 KR 101765569B1 KR 1020150172980 A KR1020150172980 A KR 1020150172980A KR 20150172980 A KR20150172980 A KR 20150172980A KR 101765569 B1 KR101765569 B1 KR 101765569B1
- Authority
- KR
- South Korea
- Prior art keywords
- compression ring
- flange portion
- reinforcing bar
- reinforcing
- circumferential surface
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title description 7
- 239000010959 steel Substances 0.000 title description 7
- 230000002787 reinforcement Effects 0.000 title description 3
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 126
- 230000006835 compression Effects 0.000 claims abstract description 74
- 238000007906 compression Methods 0.000 claims abstract description 74
- 238000000034 method Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 23
- 238000005304 joining Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 7
- 238000005219 brazing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000011150 reinforced concrete Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/04—Clamping or clipping connections
- F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
Abstract
The present invention is characterized in that a fastening hole penetrating the inside is formed, a first body part in which a first reinforcing bar is inserted at one side of the fastening hole, and a second body part in which a second reinforcing bar is inserted at the other side of the fastening hole are integrally formed And a plurality of compression rings inserted into the fastening holes to fix the first and second reinforcing bars on the body, respectively, in a body for connecting one reinforcing bar and a second reinforcing bar.
According to another aspect of the present invention, there is provided a method of manufacturing a cylindrical body, the method including: injecting a filler into an inner circumferential surface of a fastening hole formed in a cylindrical body; A first body part formed on both sides of the body and a compression ring inserted in the second body part to fix the reinforcing bars; A step of inserting a plurality of compression rings on the fastening holes, and a step of joining the compression rings with the body by heating to a temperature at which the consumable material is melted by the heating means.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupler for reinforcing bars and a method of manufacturing the same, and more particularly, to a coupler for reinforcing bars that can extend the available length by connecting reinforcing bars and reinforcing bars in the longitudinal direction and a manufacturing method thereof.
Reinforced concrete structures are generally constructed in such a way that the advantages and disadvantages of reinforcing bars and concrete can be complemented. It is a structure that allows reinforcement to be placed at the portion where tensile stress acts to resist external forces.
Here, the concrete is resistant to tensile stress (tensile stress), that is, tensile strength is remarkably weak compared to the resistance and pressure strength against pressure stress, so that cracks are generated by a predetermined tensile stress and are destroyed. Therefore, the reinforced concrete structure is able to improve durability when an external force is applied by allowing pressure stress to be applied to the concrete and tensile stress to be applied to the reinforcing bar.
In recent years, the length of the reinforcing bars inserted into the concrete is relatively extended due to the enlargement of the reinforced concrete structures and the increase of the height of the reinforced concrete structures. In the case of reinforcing bars, since the length of the reinforcing bars is limited, Are connected to each other.
On the other hand, the above-mentioned connection work is carried out by various methods such as lap joint for joining two reinforcing bars together, joining by gas welding, and mechanical joining.
However, since the double joint has low durability, there is a danger that it is applied when the structure is a high layer, and the gas pressure point is pointed out to be a problem due to cracking due to thermal deformation of the heated portion.
Therefore, recently, the mechanical joint which is easy to construct is secured and durability which is a disadvantage of the above-mentioned folding and gas pressure welding is mainly used, and a reinforcing bar connecting device, which is a typical example of mechanical joint, has been developed and studied in various ways .
However, recently developed mechanical joint type reinforcing bars are constructed by forming a male thread on the end of a reinforcing bar to be connected and forming a female thread on the inner circumferential surface of the connecting device to connect the reinforcing bar or the connecting device by rotating the reinforcing bars. The workability is lowered and the work time for connecting the workability is increased.
The present invention provides a coupler for a reinforcing bar and a method of manufacturing the same, which can easily extend the available length by connecting the reinforcing bars and the reinforcing bars to each other by a one-touch method, There is a purpose.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a method of manufacturing a reinforcing bar, comprising a first body portion having a fastening hole penetrating the fastening hole, And a plurality of compression rings inserted into the fastening holes and fixing the first and second reinforcing bars on the body, respectively, the body being formed integrally with the body and connecting the first and second reinforcing bars to each other, Coupler.
The coupler for reinforcing bars may further include a stopper arranged to shield a part or all of the fastening holes in the body center portion to limit an insertion depth of the first or second reinforcing bars.
The compression ring may include a flange portion joined to the inner circumferential surface of the body, and a plurality of elastic blades protruding inwardly of the flange portion and elastically contacting the first reinforcing bar or the second reinforcing bar.
The compression ring includes a flange portion disposed adjacent to an inner circumferential surface of the body, a fixing portion for elastically fixing the flange portion on the inner circumferential surface of the body, and a fixing portion projecting inwardly of the flange portion, And may include a plurality of elastic blades that contact each other.
The elastic blades may be arranged to face each other on the outer circumferential surface of the first reinforcing bar or the second reinforcing bar, or may be disposed at an equal angle.
A filler material may be inserted between the body and the compression ring to be joined by a brazing method.
The body may be formed such that the first body part and the second body part are bent at a predetermined angle.
The body may include at least one third body portion formed at an angle different from that of the first body portion or the second body portion, and at least one third body portion communicating with the coupling hole or having another coupling hole formed therein.
According to another aspect of the present invention, there is provided a method of manufacturing a cylindrical body, the method including: injecting a filler into an inner circumferential surface of a fastening hole formed in a cylindrical body; A first body part formed on both sides of the body and a compression ring inserted in the second body part to fix the reinforcing bars; A step of inserting a plurality of compression rings on the fastening holes, and a step of joining the compression rings with the body by heating to a temperature at which the consumable material is melted by the heating means.
The method for manufacturing a reinforcing bar coupler may further include inserting a stopper at a central portion of the fastening hole in the body prior to inserting the compression ring.
The step of manufacturing the compression ring may include forming a flange portion contacting the inner circumferential surface of the body, and bending the plurality of elastic blades protruding to the inside of the flange portion.
The step of manufacturing the compression ring may include forming a fixing part protruding from an end of the flange portion and fixing the flange portion to the inner circumferential surface of the body so that the flange portion can be resiliently fixed on the inner circumferential surface of the body.
The step of bending the elastic blade may bend such that the elastic blade is inclined corresponding to a direction in which the reinforcing bar is inserted into the first body part or the second body part.
The step of joining the compression ring to the body may be joined by a brazing method.
The method for manufacturing a reinforcing bar coupler may further include the step of additionally inserting a filler between the compression ring and the body after the step of inserting the compression ring is completed.
According to the reinforcing coupler and the method of manufacturing the same according to the present invention,
First, one-touch connection between the reinforcing bar and the other reinforcing bar facilitates bonding,
Second, as the connection of the reinforcing bars is facilitated, the working time is reduced and the cost reduction is expected,
Third, the coupling between the body and the compression ring is brazed,
Fourth, securing the rigidity of the brazed joint can ensure the stability of the rebar connection,
Fifth, there is an effect that can be widely applied not only to reinforcing bars but also to other steel pipe connecting parts.
1 is a plan view showing a reinforcing coupler according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view showing the reinforcing coupler shown in Fig. 1 in an exploded state.
3 is a cross-sectional view showing the inside of the state in which the reinforcing coupler shown in Fig. 2 is engaged.
4 is a reference view showing a front side and a side view of the compression ring of the reinforcing coupler shown in Fig.
5 is an enlarged partial enlarged view of a portion of the reinforcing coupler shown in Fig.
6 is a side view showing another embodiment of the compression ring of the reinforcing coupler shown in Fig.
7 is a reference view showing a coupler for reinforcing bars according to another embodiment of the present invention.
8 is a flowchart showing a method of manufacturing a reinforcing coupler according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be noted that the drawings denoted by the same reference numerals in the drawings denote the same reference numerals whenever possible, in other drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. And certain features shown in the drawings are to be enlarged or reduced or simplified for ease of explanation, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.
FIG. 1 is an exploded perspective view of the reinforcing coupler shown in FIG. 1, and FIG. 3 is an exploded perspective view of the reinforcing coupler shown in FIG. FIG. 4 is a reference view showing the front and side surfaces of the compression ring of the reinforcing coupler shown in FIG. 3, and FIG. 5 is an enlarged view of one end of the reinforcing coupler shown in FIG. 3 Fig.
1 to 5, a coupler for
To this end, the reinforcing
The
The
The
More specifically, when a single selected filler material such as wire, thin plate, or powder is introduced into the
It is needless to say that the joining can also be realized by a soldering method in which the joining
The
At this time, the
The
The
Accordingly, when the
6 is a side view showing another embodiment of the compression ring of the reinforcing coupler shown in Fig.
6, the
The
7 is a reference view showing a coupler for reinforcing bars according to another embodiment of the present invention.
Referring to FIG. 7, the reinforcing
7B is a cross-sectional view of the
7C is a cross-sectional view taken along the line AA 'in FIG. 7C. FIG. 7C is a cross-sectional view taken along line AA' in FIG. The reinforcing
Although not shown in the drawings, the body may be formed at an acute angle or at an obtuse angle, or may have a body having three axes (x, y, z) in a three-dimensional direction. Accordingly, the body includes at least one third body part (not shown) formed at an angle different from that of the first body part or the second body part, and communicating with the coupling hole or having another coupling hole formed therein . Here, the third body part is a part of the body to which the third reinforcing
Hereinafter, a method for manufacturing a reinforcing coupler according to the present invention will be described in detail.
8 is a flowchart showing a method of manufacturing a reinforcing coupler according to the present invention. Hereinafter, the same reference numerals as those used in the following description denote the same elements.
Referring to FIG. 8, a method S100 for manufacturing a reinforcing bar coupler according to the present invention includes a step S110 of introducing a filler into an inner circumferential surface of a fastening hole formed in a body, a step of forming a compression ring to be inserted into the body S120), inserting a compression ring into the body (S130), and joining the body and the compression ring by heating by a heating means (S140).
As described above, the method of inserting the filler material (S110) includes a method of inserting the filler material into the inner circumferential surface of the body and inserting the compression ring, and a method of inserting the filler material into each compression ring while inserting the compression ring have. Of course, a method of inserting the filler material while inserting the compression ring in the state where the filler material is inserted can also be applied.
The step S120 of manufacturing the compression ring includes a step S121 of forming a flange portion contacting the inner circumferential surface of the body and a step S122 of bending the plurality of elastic blades protruding to the inside of the flange portion .
The step of bending the elastic blade (S122) may include a step of bending the elastic blade so as to be inclined corresponding to the direction in which the reinforcing bar is inserted into the first body part or the second body part.
The step of manufacturing the compression ring S120 includes a step S121a of protruding from the end of the flange portion and fixing the flange portion to the inner circumferential surface of the body so as to elastically fix the flange portion on the inner circumferential surface of the body do.
The step of forming the fixing portion S121a may be selectively formed in accordance with the size and type of the coupler. By forming the fixing portion, the structural rigidity can be increased and the effect of facilitating the insertion of the sparkling material can be expected.
In the compression ring thus completed, a compression ring inserted into the fastening hole in the body is inserted (S130). In the step of inserting the compression ring (S130), the compression rings are inserted into the first body part and the second body part, respectively, in accordance with the direction in which the elastic blades are formed on the flange part.
In this case, a step S125 of inserting a stopper into the center of the fastening hole in the body before the step of inserting the compression ring (S130) is included. The step of inserting the stopper (S125) is a step of inserting the reinforcing bars into the predetermined depth by limiting the depth at which the first reinforcing bars or the second reinforcing bars are inserted.
At this time, after the step of inserting the compression ring (S130) is completed, a step (S135) of additionally introducing a filler between the compression ring and the body is performed. Step S135 of additionally introducing the excipient is also selectively performed and can be performed when increasing the coupling force between the body and the compression ring.
After completion of the manufacturing of the compression ring and the step of inserting the compression ring (S130) is completed, the step of joining the body and the compression ring (S140) is performed by the brazing method.
When the assembled coupler is inserted into the furnace, the body or the compression ring remains unchanged, and only the melted material introduced between the body and the compression ring is melted, The compression ring is joined.
Thus, according to the method (S100) for manufacturing a reinforcing bar coupler completed in this way, since only the melted material is melted and the body and the compression ring are joined, it is easy to join the reinforcing bar coupler having a complicated structure, It is effective. In addition, since the reinforcing bars can be coupled to the inside of the compression ring by the interference fit method, the reinforcing bars and reinforcing bars can be easily connected.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. But can be carried out within a range that does not deviate. Accordingly, such modifications are also considered to be within the scope of the present invention, and the true scope of protection of the present invention should be determined by the technical idea of the following claims.
100: Reinforcing coupler
110: body 111: first body part
112: second body part 114: fastening hole
120: compression ring 121: flange portion
122: elastic blade 123:
130: Stopper
Claims (15)
And a plurality of compression rings inserted into the fastening holes to fix the first and second reinforcing bars on the body, respectively,
The compression ring includes a flange portion disposed adjacent to an inner circumferential surface of the body, a fixing portion for elastically fixing the flange portion on the inner circumferential surface of the body, and a fixing portion projecting inwardly of the flange portion, A plurality of resilient blades in contact with each other,
Wherein a filler material is drawn in a gap formed between the body and the flange portion of the compression ring and is joined by a brazing method.
Further comprising a stopper arranged to shield a part or all of the fastening holes in the body center portion to limit an insertion depth of the first reinforcing bar or the second reinforcing bar.
Wherein the elastic blades are arranged to face each other on an outer circumferential surface of the first reinforcing bar or the second reinforcing bar, or are disposed at an equal angle.
The body,
Wherein the first body part and the second body part are formed to be bent at a predetermined angle with respect to each other.
The body,
And at least one third body part formed at an angle different from that of the first body part or the second body part and communicating with the coupling hole or having another coupling hole formed therein.
A first body part formed on both sides of the body and a compression ring inserted in the second body part to fix the reinforcing bars;
Inserting a plurality of compression rings on the fastening holes and
Joining the compression ring to the body by heating to a temperature at which the filler material is melted by the heating means;
Lt; / RTI >
Wherein the step of forming the compression ring includes the steps of: forming a flange portion contacting the inner circumferential surface of the body; bending an elastic blade projecting a plurality of inwardly into the flange portion; and elastically fixing the flange portion on the inner circumferential surface of the body And forming a fixing portion that protrudes from the end of the flange portion and fixes the flange portion to the inner circumferential surface of the body,
Wherein the step of joining the compression ring to the body comprises the step of pulling a filler material in a gap formed between the body and the flange portion of the compression ring and joining the filler material by a brazing method.
Further comprising the step of inserting a stopper at a central portion of the fastening hole in the body before the step of inserting the compression ring.
Wherein the step of bending the elastic blade comprises:
And the elastic blade is bent so as to be inclined corresponding to a direction in which the reinforcing bar is inserted into the first body part or the second body part.
Further comprising inserting a filler material between the compression ring and the body after the step of inserting the compression ring is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150172980A KR101765569B1 (en) | 2015-12-07 | 2015-12-07 | Coupler for Steel Reinforcement and Manufacturing Method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150172980A KR101765569B1 (en) | 2015-12-07 | 2015-12-07 | Coupler for Steel Reinforcement and Manufacturing Method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20170066833A KR20170066833A (en) | 2017-06-15 |
| KR101765569B1 true KR101765569B1 (en) | 2017-08-07 |
Family
ID=59217699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020150172980A KR101765569B1 (en) | 2015-12-07 | 2015-12-07 | Coupler for Steel Reinforcement and Manufacturing Method thereof |
Country Status (1)
| Country | Link |
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| KR (1) | KR101765569B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102151795B1 (en) | 2020-03-09 | 2020-09-03 | 홍종화 | Rebar Joint Coupler Manufacturing Method and Rebar Joint Coupler Manufactured by the Manufacturing Method |
| KR102221006B1 (en) | 2020-05-22 | 2021-02-25 | 홍종화 | Rebar joint coupler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100730540B1 (en) * | 2006-07-28 | 2007-06-20 | 정승이 | Reinforcing bar coupler |
| KR101121931B1 (en) * | 2009-03-30 | 2012-04-03 | 엘케이테크 주식회사 | Reinforcing rod a coupling device. |
-
2015
- 2015-12-07 KR KR1020150172980A patent/KR101765569B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100730540B1 (en) * | 2006-07-28 | 2007-06-20 | 정승이 | Reinforcing bar coupler |
| KR101121931B1 (en) * | 2009-03-30 | 2012-04-03 | 엘케이테크 주식회사 | Reinforcing rod a coupling device. |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102151795B1 (en) | 2020-03-09 | 2020-09-03 | 홍종화 | Rebar Joint Coupler Manufacturing Method and Rebar Joint Coupler Manufactured by the Manufacturing Method |
| KR102221006B1 (en) | 2020-05-22 | 2021-02-25 | 홍종화 | Rebar joint coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170066833A (en) | 2017-06-15 |
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