KR20220029042A - Manufacturing Method of connection structure for Steel furniture frame and the connection structure - Google Patents

Manufacturing Method of connection structure for Steel furniture frame and the connection structure Download PDF

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KR20220029042A
KR20220029042A KR1020200110879A KR20200110879A KR20220029042A KR 20220029042 A KR20220029042 A KR 20220029042A KR 1020200110879 A KR1020200110879 A KR 1020200110879A KR 20200110879 A KR20200110879 A KR 20200110879A KR 20220029042 A KR20220029042 A KR 20220029042A
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South Korea
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connecting pipe
pipe
connector
manufacturing
support surface
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KR1020200110879A
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Korean (ko)
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KR102538764B1 (en
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이창환
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이창환
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B95/00—Fittings for furniture
    • A47B95/002—Plinths, e.g. between furniture and ceiling or wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/12—Edge-curling
    • 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
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/44—Leg joints; Corner joints
    • F16B12/52—Metal leg connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furniture Connections (AREA)

Abstract

The present invention relates to a manufacturing method of a connector for steel furniture and a connector thereby, wherein first and second connecting pipes are individually manufactured and the first and second connecting pipes are joined to each other to produce a T-shaped connector, thereby reducing manufacturing costs and facilitating assembly and installation. The manufacturing method of a connector for steel furniture of the present invention comprises: a cutting step of preparing first and second connecting pipes; a first forming step of a first pipe installed in a lower mold and having a fixing jig having a bending guide groove and a support surface and a rolling part on one end of the first pipe by placing the first pipe on the support surface of the fixing jig, hitting the upper end of the first pipe by an upper mold, and bending along the edge of the support surface and the bending guide groove; a second forming step of the first connecting pipe of turning over the first connecting pipe, placing the first connecting pipe on the support surface, hitting the rolling part of the first connecting pipe by the upper mold, and forming a rolling part on the other side of the first connecting pipe; a third forming step of a second connecting pipe of forming a rolling part on a new second pipe through the first forming step and forming a fastening groove in close contact with an outer surface of the first connecting pipe; and a joining step of installing a fastening groove of the second connecting pipe on the outer surface of the first connecting pipe.

Description

철재가구용 연결구 제조방법 및 그 연결구{Manufacturing Method of connection structure for Steel furniture frame and the connection structure}A method of manufacturing a connector for steel furniture and a connector therefor {Manufacturing Method of connection structure for Steel furniture frame and the connection structure}

본 발명은 철재가구용 연결구 제조방법 및 그 연결구에 관한 것으로, 더 상세히는 연결구의 제조방법을 개선하여 제조원가를 절감함과 아울러 조립설치 작업이 용이하며, 선택적으로 주문 제작이 가능한 철재가구용 연결구 제조방법 및 그 연결구에 관한 것이다.The present invention relates to a method for manufacturing a connector for steel furniture and a connector therefor, and more particularly, to a method for manufacturing a connector for steel furniture, which reduces manufacturing cost by improving the manufacturing method of the connector, as well as easy assembly and installation work, and a method for manufacturing a connector for steel furniture that can be selectively made to order; It's about the connector.

도 1에 도시된 바와 같이, 종래의 철재가구 받침대는 '┳' 자 형상을 갖는 연결구와, 이 연결구의 상,하부에 수직관이 나사결합되며, 서로 마주보는 연결구와 연결구 사이에 수평관이 나사결합되고, 상기 수직관의 상부에 받침판이 설치된다.As shown in Figure 1, the conventional iron furniture pedestal has a connector having a '┳' shape, and a vertical pipe is screwed to the upper and lower parts of the connector, and a horizontal pipe is screwed between the connector and the connector facing each other. coupled, and a support plate is installed on the upper part of the vertical pipe.

이와 같이 종래의 철재가구 받침대는 연결구와 수직관 및 수평관이 서로 나사결합하기 위해서는 상기 수직관 및 수평관에 나사부를 형성해야 하기 때문에 제조원가가 상승됨과 아울러 조립과 설치작업에 많은 시간이 소요되는 문제점이 있으며, 그리고 특히 상기 연결구는 주물로 제조되는 것으로 제품 원가가 상승되는 문제점이 있었다. As described above, in the conventional steel furniture pedestal, the manufacturing cost is increased and the assembly and installation work takes a lot of time because it is necessary to form a threaded part in the vertical pipe and the horizontal pipe in order to screw the connector and the vertical pipe and the horizontal pipe to each other. There is, and in particular, the connector has a problem in that the product cost is increased as it is manufactured by casting.

상기의 문제점을 해결하기 위한 본 발명은 제1,2연결파이프를 개별적으로 제조하고, 이 제1,2연결파이프를 서로 접합하여 '┳' 자 형상의 연결구를 제조함에 따라 제조원가를 절감함과 아울러 조립,설치 작업이 용이한 철재가구용 연결구 제조방법 및 그 연결구를 제공한다.The present invention for solving the above problems reduces the manufacturing cost by manufacturing the first and second connecting pipes individually, and by joining the first and second connecting pipes to each other to manufacture a '┳'-shaped connector Provided are a method for manufacturing a connector for steel furniture that is easy to assemble and install, and a connector for the same.

상기 과제를 해결하기 위한 본 발명의 철재가구용 연결구 제조방법은 제1,2연결파이프 준비하는 절단 단계와; 하부금형에 설치되며, 절곡유도홈과 지지면을 갖는 고정지그와, 상기 고정지그의 지지지면에 안착시킨 후, 상부금형에 의해 제1파이프의 상단부를 타격하여 상기 지지면의 테두리와 절곡유도홈을 따라 절곡되면서 일단부에 말림부가 형성하는 제1파이프 제1성형단계와; 제1연결파이프를 뒤집어 상기 지지면에 안착시킨 후, 상부금형에 의해 상기 제1연결파이프의 말림부를 타격하여 제1연결파이프의 타측에 말림부를 형성하는 제1연결파이프 제2성형단계와; 상기 제1성형단계를 거쳐 새로운 제2파이프에 말림부를 성형한 후, 상기 제1연결파이프의 외측면에 밀착되게 체결홈을 형성하는 제2연결파이프 제3성형단계와; 제1연결파이프의 외측면에 제2연결파이프의 체결홈을 설치하는 접합단계로 구성된다.A method for manufacturing a connector for steel furniture of the present invention for solving the above problems comprises: a cutting step of preparing the first and second connecting pipes; A fixing jig installed in the lower mold and having a bending guide groove and a support surface, and after being seated on the support surface of the fixing jig, the upper end of the first pipe is hit by the upper mold to the edge of the support surface and the bending guide groove a first forming step of a first pipe in which a curled part is formed at one end while being bent along the line; a second forming step of a first connecting pipe in which the first connecting pipe is turned over and seated on the support surface, and then the curled part of the first connecting pipe is struck by an upper mold to form a rolled part on the other side of the first connecting pipe; a third forming step of a second connecting pipe forming a fastening groove in close contact with an outer surface of the first connecting pipe after forming a rolled part in a new second pipe through the first forming step; It consists of a joining step of installing a fastening groove of the second connecting pipe on the outer surface of the first connecting pipe.

그리고 본 발명의 철재가구용 연결구는 내부가 중공되며, 상,하부에 바깥쪽으로 말림부가 형성된 제1연결파이프와; 일단부는 제1연결파이프의 외측면에 밀착되도록 곡선 형태를 갖는 체결홈이 형성되며, 타단부는 바깥쪽으로 절곡된 말림부가 형성된 제2연결파이프와; 상기 제1연결파이프의 외측면에 제2연결파이프의 체결홈이 용접에 의해 설치되는 것을 특징으로 한다.And the connector for steel furniture of the present invention has a hollow inside, and a first connecting pipe in which the upper and lower portions are curled to the outside; a second connecting pipe having a fastening groove having a curved shape so as to be in close contact with the outer surface of the first connecting pipe at one end and having a curled portion bent outwardly at the other end thereof; A fastening groove of the second connection pipe is installed on the outer surface of the first connection pipe by welding.

따라서 본 발명의 철재가구용 연결구 제조방법 및 그 연결구는 제1,2파이프를 개별적으로 제조하고, 이 제1,2연결파이프를 서로 접합하여 '┳' 자 형상의 연결구를 제조함에 따라 제조원가를 절감함과 아울러 조립,설치 작업이 용이한 효과가 있다. Therefore, in the method for manufacturing a connector for steel furniture and the connector of the present invention, the manufacturing cost is reduced by manufacturing the first and second pipes separately, and joining the first and second connecting pipes to each other to produce a '┳'-shaped connector. In addition, there is an effect of easy assembly and installation work.

도 1은 종래의 철재가구 받침대를 보인 측면도,
도 2,3는 본 발명에 따른 철재가구용 연결구 제조방법을 보인 개략적인 공정도,
도 4는 본 발명에 따른 철재가구용 연결구를 보인 사시도이며,
도 5는 본 발명에 따른 철재가구용 연결구를 이용한 받침대의 측면도.1 is a side view showing a conventional iron furniture pedestal;
2 and 3 are schematic process diagrams showing a method for manufacturing a connector for steel furniture according to the present invention;
4 is a perspective view showing a connector for steel furniture according to the present invention;
5 is a side view of a pedestal using a connector for steel furniture according to the present invention.

본 발명에 따른 철재가구용 연결구 제조방법 및 그 연결구를 참고로 하여 이하 상세히 기술되는 실시예들에 의해 그 특징들을 이해할 수 있을 것이다.It will be possible to understand the characteristics of the method for manufacturing a connector for steel furniture according to the present invention and the embodiments described in detail below with reference to the connector.

한편, 기술을 설명함에 있어서 본 발명이 속하거나 속하지 아니한 기술분야에서 광범위하게 널리 알려져 사용되고 있는 구성요소에 대해서는 이에 대한 상세한 설명은 생략하도록 하며, 이는 불필요한 설명을 생략함과 더불어 이에 따른 본 발명의 요지를 더욱 명확하게 전달하기 위함이다.On the other hand, in describing the technology, the detailed description of the components widely known and used in the technical field to which the present invention belongs or does not belong will be omitted, and the unnecessary description will be omitted and the subject matter of the present invention accordingly to convey more clearly.

도 2 및 도 3에 도시된 바와 같이 본 발명의 철재가구용 연결구 제조방법은 제1,2연결파이프(30,40) 준비하는 절단 단계(S1)와; 제1연결파이프(30)의 일단부에 말림부(50)를 형성하는 제1성형단계(S2)와, 제1연결파이프(30)의 타단부에 말림부(50)를 형성하는 제2성형단계(S2)와, 상기 제1성형단계(S2)를 거쳐 제2연결파이프(40)의 일단부에 말림부(50)를 성형한 후, 제2연결파이프(40)의 타단부에 체결홈(41)을 형성하는 제3성형단계(S4)와, 제1연결파이프(30)의 외측면에 제2연결파이프(40)의 체결홈(41)을 설치하는 접합단계(S4)로 이루어진다.As shown in Figures 2 and 3, the method of manufacturing a connector for steel furniture of the present invention includes a cutting step (S1) of preparing the first and second connecting pipes (30, 40); A first forming step (S2) of forming a curled portion 50 at one end of the first connecting pipe 30, and a second forming of forming a curled portion 50 at the other end of the first connecting pipe 30 After forming the curled part 50 at one end of the second connecting pipe 40 through the step S2 and the first forming step S2, a fastening groove is formed at the other end of the second connecting pipe 40 It consists of a third forming step (S4) of forming (41), and a bonding step (S4) of installing a fastening groove (41) of the second connecting pipe (40) on the outer surface of the first connecting pipe (30).

상기 절단 단계(S1)는 제1,2연결파이프(30,40)를 직경과 크기에 따라 각각 커팅한다.In the cutting step (S1), the first and second connecting pipes 30 and 40 are cut according to diameter and size, respectively.

상기 제1성형단계(S2)는 하부금형(200)에 설치되며, 절곡유도홈(11)과 지지면(12)을 갖는 고정지그(10)와, 상기 고정지그(10)의 지지면(12)에 안착시킨 후, 상부금형(100)에 의해 제1연결파이프(30)의 상단부를 타격하여 상기 지지면(12)의 테두리와 절곡유도홈(11)을 따라 절곡되면서 제1연결파이프(30)의 일단부에 말림부(50)가 형성된다. The first forming step (S2) is installed in the lower mold 200, a fixing jig 10 having a bending guide groove 11 and a support surface 12, and a support surface 12 of the fixing jig 10 ), hit the upper end of the first connection pipe 30 with the upper mold 100 and bend along the edge of the support surface 12 and the bending guide groove 11 while bending the first connection pipe 30 ) at one end of the curled portion 50 is formed.

상기 제2성형단계(S2)는 제1연결파이프(30)를 뒤집어 상기 지지면(12)에 안착시킨 후, 상부금형(100)에 의해 상기 제1연결파이프(30)의 말림부(50)를 타격하여 제1연결파이프(30)의 타단부에 말림부(50)를 형성한다. In the second forming step (S2), the first connecting pipe 30 is turned over and seated on the support surface 12, and then the curled part 50 of the first connecting pipe 30 by the upper mold 100 is used. to form a curled part 50 at the other end of the first connection pipe 30 by hitting the .

상기 제3성형단계(S4)는 하부금형(200)에 설치되며 안착홈(21)을 갖는 커팅지그(20)와, 상부금형(100)에 설치되며, 절단부(23)를 갖는 절단지그(22)로 이루어진다.The third forming step (S4) is a cutting jig 20 installed in the lower mold 200 and having a seating groove 21, and a cutting jig 22 installed in the upper mold 100 and having a cutting part 23. ) is made of

그리고 제3성형단계(S4)는 제1성형단계(S2)를 거쳐 제2연결파이프(40)의 일단부에 말림부(50)를 성형한 후, 상기 커팅지그(20)의 안착홈(21)에 제2연결파이프(40)의 타단부를 안착시킴과 아울러 상기 절단부(23)에 끼워지게 배치시킨 후, 상기 상부금형(100)의 동작에 의해 상기 절단지그(22)가 승,하강하면서 상기 절단부(23)에 의해 상기 제2연결파이프(40)의 타단부 일측을 절단하여 체결홈(41)을 형성하고, 상기 제2연결파이프(40)를 회전시켜 상기 체결홈(41)에 대칭되게 배치시킨 후 상기 절단부(23)에 의해 상기 제2연결파이프(40)의 타측에 체결홈(41)을 형성한다.And in the third forming step (S4), after forming the curled part 50 at one end of the second connecting pipe 40 through the first forming step (S2), the seating groove 21 of the cutting jig 20 ) to seat the other end of the second connection pipe 40 and to be fitted to the cutout 23, the cutting jig 22 is raised and lowered by the operation of the upper mold 100 while A fastening groove 41 is formed by cutting one side of the other end of the second connecting pipe 40 by the cutting part 23 , and the second connecting pipe 40 is rotated to be symmetrical to the fastening groove 41 . After arranging to be so, a fastening groove 41 is formed on the other side of the second connecting pipe 40 by the cutting part 23 .

상기 접합단계(S4)는 제1연결파이프(30)의 외측면에 체결홈(41)을 밀착시킨 후, 용접 등에 의해 상기 제2연결파이프(40)를 설치하게 되면 전체가 '┳' 자 형상으로 구비된다.In the joining step (S4), after the fastening groove 41 is closely attached to the outer surface of the first connecting pipe 30, when the second connecting pipe 40 is installed by welding, etc., the entire '┳' shape is provided with

도 4에 도시된 바와 같이 본 발명의 철재가구용 연결구는 제1연결파이프(30)와, 상기 제1연결파이프(30)에 설치되는 제2연결파이프(40)로 이루어진다.As shown in FIG. 4 , the connector for iron furniture of the present invention includes a first connecting pipe 30 and a second connecting pipe 40 installed in the first connecting pipe 30 .

상기 제1연결파이프(30)는 내부가 중공되며 상,하부에 바깥쪽으로 절곡된 말림부(50)가 구비된다.The first connection pipe 30 has a hollow inside, and is provided with curled portions 50 bent outwardly at upper and lower portions.

상기 제2연결파이프(40)의 일단부는 바깥쪽으로 절곡된 말림부(50)가 형성되며, 타단부는 제1연결파이프(30)의 외측면에 밀착되도록 곡선 형태를 갖는 체결홈(41)이 형성된다.One end of the second connecting pipe 40 is formed with a curled portion 50 bent outward, and the other end has a fastening groove 41 having a curved shape so as to be in close contact with the outer surface of the first connecting pipe 30 . is formed

상기 제1,2연결파이프(30,40)는 용접에 의해 서로 직교되게 설치된다.The first and second connecting pipes 30 and 40 are installed to be perpendicular to each other by welding.

도 5에 도시된 바와 같이, 본 발명의 철재가구용 연결구를 이용한 받침대는 연결구의 제1연결파이프(30) 상,하부에 수직관(31)이 끼워져 용접에 의해 설치되며, 상기 연결구의 제2연결파이프(40)에 수평관(42)이 끼워져 용접에 의해 설치되어 전체가 ' H ' 형상으로 구비된다. 그리고 상기 수직관(31)의 상부에 받침부재(60)가 설치된다. As shown in Figure 5, the pedestal using the connector for steel furniture of the present invention is installed by welding by inserting a vertical pipe 31 into the upper and lower portions of the first connecting pipe 30 of the connector, and the second connection of the connector The horizontal pipe 42 is fitted into the pipe 40 and installed by welding, so that the entirety is provided in an 'H' shape. And the support member 60 is installed on the upper portion of the vertical pipe (31).

이와 같이 본 발명의 철재가구용 연결구는 제1,2연결파이프(30,40)를 개별적으로 제조하고, 이 제1,2연결파이프(30,40)를 서로 접합하여 '┳' 자 형상의 연결구를 제조하고, 이 연결구에 수직관(31)과 수평관(42)을 용접에 의해 고정시킴에 따라 제조원가를 절감함과 아울러 조립,설치 작업이 용이한 장점이 있다.As such, in the connector for steel furniture of the present invention, the first and second connecting pipes 30 and 40 are separately manufactured, and the first and second connecting pipes 30 and 40 are joined to each other to obtain a '┳'-shaped connector. Manufacturing, and fixing the vertical pipe 31 and the horizontal pipe 42 to this connector by welding, there is an advantage in that the manufacturing cost is reduced and assembly and installation work are easy.

상기에서 설명한 바와 같이 본 발명의 과제와 동일한 범위 내에서 다양한 설계 변경을 시도할 수도 있을 것이나, 이러한 설계변경으로 인해 본 발명에서 전혀 예상치 못한 새로운 효과가 나타나지 않는 한, 본 발명의 권리범위를 벗어나지 못할 것이다.As described above, various design changes may be attempted within the same scope as the subject of the present invention, but unless unexpected new effects appear in the present invention due to such design changes, it cannot depart from the scope of the present invention. will be.

10: 고정지그 20: 커팅지그
30: 제1연결파이프 40: 제2연결파이프
50: 말림부 10: fixing jig 20: cutting jig
30: first connection pipe 40: second connection pipe
50: curl

Claims (3)

제1,2연결파이프(30,40)를 준비하는 절단 단계(S1)와;
하부금형(200)에 설치되며, 절곡유도홈(11)과 지지면(12)을 갖는 고정지그(10)와, 상기 고정지그(10)의 지지지면(12)에 안착시킨 후, 상부금형(100)에 의해 제1연결파이프(30)의 상단부를 타격하여 상기 지지면(12)의 테두리와 절곡유도홈(11)을 따라 절곡되면서 일단부에 말림부(50)를 형성하는 제1연결파이프(30) 제1성형단계(S2)와;
제1연결파이프(30)를 뒤집어 상기 지지면(12)에 안착시킨 후, 상부금형(100)에 의해 상기 제1연결파이프(30)의 말림부(50)를 타격하여 제1연결파이프(30)의 타단부에 말림부(50)를 형성하는 제1연결파이프(30) 제2성형단계(S2)와;
상기 제1성형단계(S2)를 거쳐 새로운 제2연결파이프(40)에 말림부(50)를 성형한 후, 상기 제1연결파이프(30)의 외측면에 밀착되게 체결홈(41)을 형성하는 제2연결파이프(40) 제3성형단계(S4)와;
제1연결파이프(30)의 외측면에 제2연결파이프(40)의 체결홈(41)을 설치하는 접합단계(S4)로 구성된 것을 특징으로 하는 철재가구용 연결구 제조방법.
A cutting step (S1) of preparing the first and second connection pipes (30, 40) and;
A fixing jig 10 installed in the lower mold 200 and having a bending guide groove 11 and a support surface 12, and after being seated on the support surface 12 of the fixing jig 10, the upper mold ( 100) by hitting the upper end of the first connecting pipe 30 and bending along the edge of the support surface 12 and the bending guide groove 11 to form a curled part 50 at one end of the first connecting pipe (30) a first forming step (S2);
After the first connection pipe 30 is turned over and seated on the support surface 12 , the first connection pipe 30 is struck by hitting the curled part 50 of the first connection pipe 30 with the upper mold 100 . ) of the second forming step (S2) of the first connecting pipe 30 to form a curled part 50 at the other end thereof;
After forming the rolled portion 50 on the new second connecting pipe 40 through the first forming step (S2), a fastening groove 41 is formed in close contact with the outer surface of the first connecting pipe 30 a second connecting pipe 40 to a third forming step (S4);
A method of manufacturing a connector for steel furniture, characterized in that it comprises a joining step (S4) of installing a fastening groove 41 of the second connecting pipe 40 on the outer surface of the first connecting pipe 30.
 내부가 중공되며, 상,하부에 바깥쪽으로 말림부(50)가 형성된 제1연결파이프(30)와;
일단부는 제1연결파이프(30)의 외측면에 밀착되도록 곡선 형태를 갖는 체결홈(41)이 형성되며, 타단부는 바깥쪽으로 절곡된 말림부(50)가 형성된 제2연결파이프(40)와;
상기 제1연결파이프(30)의 외측면에 제2연결파이프(40)의 체결홈(41)이 용접에 의해 설치되는 것을 특징으로 하는 철재가구용 연결구.
a first connecting pipe 30 having a hollow inside and having an outwardly curled portion 50 at the upper and lower portions;
At one end, a fastening groove 41 having a curved shape is formed so as to be in close contact with the outer surface of the first connecting pipe 30, and the other end is formed with a second connecting pipe 40 having a curled portion 50 bent outward and ;
A connector for steel furniture, characterized in that the fastening groove (41) of the second connection pipe (40) is installed on the outer surface of the first connection pipe (30) by welding.
 제1항 또는 제2항에 있어서,
상기 제1,2연결파이프(30,40)는 전체가 '┳' 자 형상으로 구비된 것을 특징으로 하는 철재가구용 연결구 제조방법 및 그 연결구.3. The method of claim 1 or 2,
The first and second connecting pipes (30, 40) are a method for manufacturing a connector for steel furniture, characterized in that the whole is provided in a '┳' shape and a connector thereof.
KR1020200110879A 2020-09-01 2020-09-01 Manufacturing Method of connection structure for Steel furniture frame and the connection structure KR102538764B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279315A (en) * 1985-06-05 1986-12-10 Kubota Ltd End part forming method for metal pipe
JPS6344042A (en) * 1986-08-12 1988-02-25 京阪コンクリート工業株式会社 Anchor device in foam block construction
JPH0819465A (en) * 1994-07-07 1996-01-23 Meiko Kinzoku Kogyo Kk Prefabricated hanger
JP2588771B2 (en) * 1989-01-20 1997-03-12 オリジン電気株式会社 Welding method and welding jig for T-shaped pipe
JP2005118794A (en) * 2003-10-14 2005-05-12 Matsumoto Kogyo Kk Pipe joining structure, and its joining method
JP2016195888A (en) * 2016-08-26 2016-11-24 英三 大森 Knockdown rack

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61279315A (en) * 1985-06-05 1986-12-10 Kubota Ltd End part forming method for metal pipe
JPS6344042A (en) * 1986-08-12 1988-02-25 京阪コンクリート工業株式会社 Anchor device in foam block construction
JP2588771B2 (en) * 1989-01-20 1997-03-12 オリジン電気株式会社 Welding method and welding jig for T-shaped pipe
JPH0819465A (en) * 1994-07-07 1996-01-23 Meiko Kinzoku Kogyo Kk Prefabricated hanger
JP2005118794A (en) * 2003-10-14 2005-05-12 Matsumoto Kogyo Kk Pipe joining structure, and its joining method
JP2016195888A (en) * 2016-08-26 2016-11-24 英三 大森 Knockdown rack

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