WO2006052064A1

WO2006052064A1 - Joint coupler for steel/reinforcing bar

Info

Publication number: WO2006052064A1
Application number: PCT/KR2005/003644
Authority: WO
Inventors: Jeong Soo Lee
Original assignee: Jeong Soo Lee
Priority date: 2004-11-09
Filing date: 2005-11-01
Publication date: 2006-05-18
Also published as: KR200381028Y1

Abstract

This design is about 'Joint Coupler for Steel/Reinforcing Bar' which is in use of connecting the steel bar as its skeleton when it is constructed concrete of public works and building. Usually, the steel bar is connected in many different ways as followings. 1. The connection method of steel bar overlapping This is the most popular method that connects the steel bar by overlapping and tied it up with thin wire. It is also generally used until nowadays because of easy way to connect. However, the disadvantage of this method is there is no tension on the jointed part of steel bar. When storm, heavy rain, earthquake and sudden disaster occurred, even after concrete work is finished, it could bring the danger of collapse because fatigue is accumulated on joint part of steel bar by unable to absorb those shocks. 2. The connection method of steel bar process This is also generally used method that connects the steel bar by making the connection coupling after processing the both ending part of steel bar. However, it has many problems as follows. There is difficulty to carry long steel bar to the manufacturing plant. At that time, problems are raised even in the other industries because it causes the heavy traffic jam and a lot of logistics cost. It may occur wasting of steel bar and time because it has to process after cutting of the calculated steel bar base on the blueprint. there is many concerned about delay the construction due to traffic jam or transporting accident. This design is made to solve problems mentioned in above, the point of this design is: it is a method that connects steel bar using stoppers composed of two as one set. The outer stopper is made as incline in order to connect easily and completely to the body. And the inner has dent to hook a jut of steel bar. When steel bar connection is operating, fabricate stopper to steel bar oppositely except for only one jut, then put it in joint body and screw it up. After then the steel connection is accomplished. This method is very easy to connect and it has no corrosion of steel bar even buried in concrete for a long time because of absolute vacuum condition of inner joint body that soaked the mortar through mortar inlets in the joint body when concrete work is operating.

Description

JOINT COUPLER FOR STEEL/REINFORCING BAR

I Name of Design J

[1] Joint Coupler for Steel/Reinforcing Bar

I Brief explanation of Design J [2]

• The first drawing is partial view drawing of this design.

• The second drawing is combination of drawing.

• The third drawing is section drawing with dotted line of enforcement example.

• Explanation of symbol for major part of drawing:

[Technical field that the design belongs and customary technique of that field 1

[3]

This design is about 'Joint Coupler for Steel bar' which is in use of connecting the steel bar as its skeleton when concrete construction for public works and building. Customary method of steel bar connection is that connects the steel bars by making the connection coupling after processing (swelling or screwing) the both ending part of steel bars. To carry long steel bars to the manufacturing plant in order to process the steel. At that time,

1. Cost a lot of transportation fee 2. Causing the traffic jam 3. It needs equipment to process 4. Wasting of steel bar, time and drawing cost are occurred because of cutting the steel bar proper for its purpose

Steel bar might not connect each other if steel bar got damaged on the processing part by carelessness transporting such as traffic accident and etc. 6. Delay of construction

Like this, many problems could be arisen in customary technique.

I Technical task to accomplish on this Design J

[4] This design is made to solve problems mentioned in above, the points of this design are; there is joint body made of material that stronger than steel and mortar inlet is penetrated at a right angle in center of joint body. Central part of joint body has a hole that penetrated to whole direction of body and inside of both ends of joint body is formed as incline and the end of that part is composed as screw part. Noticeable thing of connecting stopper is formed two as one set which are composed of dent to hook a jut for inner stopper and incline (angle of incline is symmetry to incline of inner joint body.) for outer stopper. When connects the steel bar, fabricate stopper opposite to end of steel bar then put it in incline of joint body and screw it up. After then the steel bar connection is accomplished.

The process of steel bar connection is; dent of inner stopper hooks the jut of steel bar then incline of outer stopper slides into incline of inner joint body, steel bar is fabricated by strong pressure of stopper as role of wedge. At that time, stopper separates into two pieces so it is easy to fabricate and it makes strong connection of steel bar due to stopper as a wedge. When concrete work is operating after steel bar connection finished, fill all the spaces of joint body with concrete mortar though mortar inlet of joint body, Therefore

A. It has no corrosion of steel bar due to absolute vacuum condition of inner joint body.

B. It makes much strong connection of steel bar operation by filled all the spaces of joint body with mortar.

C. Inner and outer of joint body become the concrete, it could be perfect concrete work.

Like the above, the design of 'Joint Coupler for Steel Bar' is very easy to fabricate on connection of steel bar and it could connect stronger. Even though it buried in concrete for a long time, it has no corrosion of steel bar.

I Operation and Composition of Design J [5] Base on drawing, detail explanation of this design is as followings.

Center of joint body has a hole that penetrated to whole direction of body. In the center of Joint body(l) which is made of material that stronger than steel bar, is penetrated mortar inlet(l') at a right angle. And joint body(l) has hole(l") that is penetrated to whole direction of central part of body and inside of both ends of joint body are formed as incline(2). And the next to that part of joint body(l) is formed as screw part(4") to be tighten with tightening nut(4).

Stopper is composed two as one set, outer stopper is formed as incline(3'), and angle of incline is symmetry to inner incline(2) of joint body(l). Inner stopper(3) is composed of dent(3") to hook a jut(5') of steel bar(5).

To connect the steel bar, fabricate(ό) two stoppers(3) opposite to each other at the end of steel bar(5), after then put it in inner incline(2) of joint body(l) and screw(4) it up. Dent(3") of inner stopper(3) hooks a jut(5') of steel bar and outer incline(3') of stopper(3) connects steel bar strongly because it has tightened in inner incline(2) of joint body(l) as a wedge. when concrete work is operating after steel connection work finished, inner joint body(l) could be perfect connection of steel bar that prevents corrosion due to absolute vacuum condition because all the spaces of inner joint body(l) has filled with concrete mortar though mortar inlet(l') , which is formed in joint body(l).

[ Effects of Design ]

[6] As stated above, this design is: the material of joint body(l) and stopper(3) is stronger than steel bar. And fabricated) two stoppers(3) opposite to each other but leave only one jut(5') of end of steel bar(5), then put it incline of joint body(l) and screw(4) it up. This is end of connecting steel bar.

I Special feature J

[7]

A. The hole(l") of joint body(l) is a empty space to put the end of steel bar easily.

B. The fact that stopper(3) composed two as one set makes easy to operate steel bar connection(ό) and to role as wedge.

C. Angle of inner incline(2) in joint body(l) and angle of outer incline(3') in stopper(3) is symmetry to each other. When tightened the final nut(4), stopper(3) makes strong connection of steel bar by operating work as wedge.

D. When concrete work is operating, mortar inlet(l') which is formed in joint body(l) makes the concrete and joint body as a one body. And it has no corrosion of steel even buried in concrete for a long time because of absolute vacuum condition of inner joint body that soaked the mortar through mortar inlets in the joint body(l).

Public work and construction is accomplished completely by effects that mentioned in above, this is useful design that could operate the perfect steel bar connection work, which is able to stand enough against shocks and shakings by storm, heavy rain, earthquake, and etc.

Claims

Claims In center for j oint body ( 1 ) of steel bar has mortar inlet( 1 ') and the right and left of that part is formed as inner body screw part(4") and inside of it has incline(2) of inner body.

Inside of outer incline(3') of outer stopper(3) has inner dent(3") to hook a jut(5') of steel bar(5), fabricated) two stoppers(3) opposite to each other, then put it in incline(2) of inner joint body and screw the tightening nut(4). After then steel bar is connected to joint body(l) completely.

When the concrete work is operating, mortar inlet(l'), which is formed in the center of joint body(l), is filled with concrete mortar in all the spaces of inner joint body(l). So it makes strong connection of steel bar. And it has no corrosion of steel bar even buried in concrete for a long time because it makes vacuum condition in inner joint body(l).