KR20140097077A - A rail supporter for greenhouse - Google Patents

A rail supporter for greenhouse Download PDF

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Publication number
KR20140097077A
KR20140097077A KR1020140087512A KR20140087512A KR20140097077A KR 20140097077 A KR20140097077 A KR 20140097077A KR 1020140087512 A KR1020140087512 A KR 1020140087512A KR 20140087512 A KR20140087512 A KR 20140087512A KR 20140097077 A KR20140097077 A KR 20140097077A
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KR
South Korea
Prior art keywords
rail
clip
molding piece
molded
present
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KR1020140087512A
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Korean (ko)
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KR101650066B1 (en
Inventor
김민성
김현구
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김민성
김현구
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Priority to KR1020140087512A priority Critical patent/KR101650066B1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1407—Greenhouses of flexible synthetic material
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/143—Equipment for handling produce in greenhouses
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B25/00—Tracks for special kinds of railways
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The present invention relates to a method to produce a rail supporter for a vinyl greenhouse. In the present invention, a pipe (P) cut to a particular length is pressurized and compressed from left and right directions to form a molding piece (20′) on the rear part thereof in order to mold a C-type clip (20) on the rear part thereof, and is compressed up and down to form a molding piece (20a′) on the front part thereof in order to mold a rail clip (20a) on which a rail (R) is settled. A reinforcing part (30) is naturally formed between the molding piece (20′) and the molding piece (20a′). Coupling holes (21) (21′) are formed on the end part and front end part of the molding piece (20′) such that the reinforcing part (30) is coupled and fixated through a bolt and nut. The molding piece (20′) is molded into a C-type clip (20) having an opening part (20′′) to be inserted in and fixated to a house frame (10), and the molding piece (20a′) is molded into a rail clip (20a) having an opening part (20a′′) on the top thereof to enable the rail (R) to be inserted and settled, such that a rail support (100) is produced, whereby the C-type clip (20) and the rail clip (20a) are formed in a body. In the present invention, production costs are remarkably reduced, and the rail support (100) having excellent durability and ruggedness can be provided. Moreover, the rail supporter (100) does not have any welded or riveted parts; hence the product is very tidy and neat, and can also minimize economical burdens on a farm.

Description

비닐하우스용 레일지지구의 제조방법{A rail supporter for greenhouse}Technical Field [0001] The present invention relates to a rail supporter for greenhouse,

본 발명은 비닐하우스용 레일지지구의 제조방법에 관한 것으로, 더욱 상세하게는 소정 길이의 파이프를 이용하여 성형 제조하되, 하우스골조에 결합되는 C형클립과 레일을 안착 고정시키는 레일클립을 일체형 한 몸체로 성형함으로서 생산성 증대 및 제조원가를 크게 절감할 수 있게 하고, 더 나아가 강도 또한 더 뛰어난 튼튼한 레일지지구를 제공할 수 있게 하기 위한 것이다.The present invention relates to a method of manufacturing a railway rail for a green house, and more particularly, to a method of manufacturing a railway rail for a greenhouse, which comprises a C-type clip coupled to a house frame and a rail clip for seating and fixing the rail, So that it is possible to provide a robust rail holding region which can increase the productivity and greatly reduce the manufacturing cost and further the strength.

주지된 바와 같이 단동형 비닐하우스나 연동형 비닐하우스는 하우스 골조를 지면에 70cm∼120cm 간격으로 세운 뒤 외부에 비닐을 씌워 구성되며, 그 길이는 통상 짧게는 40∼50m에서 길게는 150m이상까지 다양한 길이로 설치 구성된다.As is well known, mono-type plastic houses and interlocking plastic houses are constructed with house frames spaced 70cm ~ 120cm apart on the ground and then covered with vinyl on the outside. Their length is usually 40 ~ 50m Lt; / RTI >

또한, 상기한 단동형 또는 연동형 비닐하우스에는 참외나 수박을 비롯한 각종 작물을 재배 수확하는 과정에서 수확물을 입구 쪽으로 보다 더 편리하고도 힘들이지 않고 손쉽게 운반할 수 있게 하기 위해 레일을 타고 이송되는 수레를 설치 사용하기도 하는데, 이때 수레를 현수하여 이송시키는 레일을 설치할 때는, 먼저 하우스 골조마다 소정높이에 레일지지구를 장착시킨 상태에서 레일지지구 선단에 위치한 레일클립에 레일을 안착 고정시킴으로서 구비된다.In addition, in the single-acting or interlocking type greenhouse described above, in order to facilitate transportation of the harvested products toward the entrance side in a process of growing and harvesting various crops including melon and watermelon, In this case, when installing a rail for suspending and transporting a wagon, the rail is first secured to the rail clip located at the front end of the rail support while mounting the rail support frame at a predetermined height for each house frame.

그러나 상기한 종래의 레일지지구는 다음과 같은 문제점이 따를 수밖에 없었던 것이다.However, the above-mentioned conventional rail support was forced to follow the following problems.

즉, 종래의 레일지지구는, 환봉을 ㄴ형으로 절곡 성형하여서 된 몸체와 3개의 클립으로 이루어지며, 상기 몸체의 배면 상하부에 하우스골조에 끼워지는 C형 클립을 용접하여 일체화시키거나, 또는 리벳팅하여 용접시키고, 또, 몸체 선단 상면에도 클립을 용접하여 일체화시키거나 리벳팅하여 일체화시킨 것으로서, 이는 ㄴ형으로 절곡 형성된 몸체와 3개의 클립을 구비한 상태에서, 상기 클립을 몸체의 배면 상하부와 선단 상면에 대고 용접 고정시키거나 리벳팅하여 구성함으로서 제조에 따른 인력과 시간이 과다 소요되고, 또 재료 또한 과다 소요되기에 원가가 과다하게 들 수밖에 없는 폐단이 따랐다는 것이다.That is, the conventional rail support member is composed of a body formed by bending a round bar into a bend shape and three clips, and a C-type clip fitted to the house frame at the upper and lower portions of the back surface of the body is welded and integrated or riveted The clip is integrally formed by integrally welding or integrally welding or cliping the upper surface of the body. The clip is integrally formed with the upper and lower surfaces of the back surface of the body and the top surface of the body, By welding or fixing by welding or riveting, it takes a lot of manpower and time to manufacture, and the material is also over-consumed, so the cost is too high.

따라서 상기한 종래 레일지지구는 가격이 비싸 농가에 경제적부담을 많이 줄 수밖에 없는데다가 하우스 골조에 설치할 때도 번거롭고 불편한 폐단이 따랐다.Therefore, the conventional rail support member described above is expensive, which can not only be economically burdened on the farmhouse, but also troublesome and inconvenient to install on the house frame.

따라서 본 발명은 전술한 종래의 제반문제점을 해결하기 위해 안출된 것으로서, 특히, 소정의 길이로 절단된 파이프로서 레일지지구를 제조하되, 선단의 레일클립과 후미의 C형 클립이 한 몸체로 되게끔 성형함으로서 제조원가 절감 및 시공 설치에 따른 편리성을 극대화시킬 수 있게 하려는데 그 목적이 있는 것이다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and in particular, it is an object of the present invention to provide a rail-supported rail as a pipe cut to a predetermined length, wherein a rail clip at the front end and a C- So that it is possible to reduce the manufacturing cost and to maximize convenience in installation and installation.

하우스 골조(10)에 장착되어 레일을 안착 고정시키는 레일지지구를 제조함에 있어서,In manufacturing the rail support member mounted on the house frame 10 to fix the rail in place,

소정의 길이로 절단된 파이프(P)의 전후부를 가압 압착시키되, 후부는 C형클립(20)을 성형하기 위한 성형편(20')이 형성되도록 좌우방향에서 가압 압착시키고 전부는 레일(R)을 안착시키는 레일클립(20a)을 성형하기 위한 성형편(20a')이 형성되도록 상하로 압착시킴으로서 성형편(20')과 성형편(20a') 사이에 보강부(30)가 자연적으로 형성되게 하되, 성형편(20')의 끝단부분과 선단부분에 볼트 및 너트로 된 체결부재(40)로 체결 고정시킬 수 있도록 체결구멍(21)(21')을 천공한 상태에서 하우스골조(10)에 끼워 고정시킬 수 있는 개구부(20")를 가진 C형클립(20)을 형성하고,The rear portion of the pipe P is pressed and adhered in the left and right direction so as to form the molding piece 20 'for molding the C-type clip 20, The reinforcing portion 30 is naturally formed between the molded piece 20 'and the molded piece 20a' by vertically compressing the molded piece 20a 'for forming the rail clip 20a for seating And the fastening holes 21 and 21 'are drilled so as to be fastened and fixed to the end portions and tip portions of the molded piece 20' by fastening members 40 of bolts and nuts. And a C-shaped clip 20 having an opening 20 "

성형편(20a')은 레일(R)을 끼워 안착시킬 수 있도록 상부에 개구부(20a")를 가진 레일클립(20a)이 형성되도록 성형함으로서 C형클립(20)과 레일클립(20a)이 한 몸체로 된 레일지지구(100)를 제조함을 특징으로 한다.The molded piece 20a 'is shaped so that a rail clip 20a having an opening 20a' is formed on the upper part so as to allow the rail R to be seated therebetween so that the C-shaped clip 20 and the rail clip 20a Thereby manufacturing a rail holding region 100 made of a body.

상기 성형편(20')(20a')의 소정위치에 하우스골조(10)와 레일(R)에 고정시키는 체결공(22)(22')을 더 형성함으로서 C형클립(20)과 레일클립(20a)을 하우스골조(10)와 레일(R)에 조립할 때 나사체결함으로서 더욱 더 견고한 설치가 이루어지도록 함도 특징으로 한다.It is possible to further form the fastening holes 22 and 22 'which are fixed to the house frame 10 and the rail R at predetermined positions of the molding pieces 20' and 20a ' (20a) to be assembled to the house frame (10) and the rail (R), a more rigid installation can be achieved.

이와 같이 구성된 본 발명은 소정의 길이로 절단된 파이프(P)를 프레스 등의 장비로 성형하여 C형클립(20)과 레일클립(20a)이 일체로 된 레일지지구(100)를 제조함으로써, 레일지지구(100) 제조시 종래와 같은 용접 또는 리벳팅 공정이 전혀 불필요하여 제조원가가 크게 절감될 뿐만 아니라 내구성과 견고성이 매우 뛰어나게 되고, 또, 레일지지구(100)에 용접부위나 리벳팅 부위가 전혀 없어 제품이 매우 깔끔 단정함은 물론 경제적으로도 농가의 부담을 최소화시킬 수 있는 등의 많은 효과가 따르게 된다.The present invention configured as described above forms the rail support 100 having the C-shaped clip 20 and the rail clip 20a integrated with each other by molding the pipe P cut to a predetermined length into equipment such as a press, Since the conventional welding or riveting process is not required at the time of manufacturing the rail support member 100, the manufacturing cost is greatly reduced and the durability and rigidity are very excellent. In addition, the rail support member 100 has a welded portion or a riveting portion There is no such thing as the product is very neat and tidy, as well as being able to minimize the burden on the farmer economically.

도 1은 본 발명의 일 실시예를 나타낸 사시도.
도 2는 본 발명의 일 실시예로서 성형과정을 나타낸 예시도.
도 3은 본 발명의 사용상태를 나타낸 예시도.1 is a perspective view showing an embodiment of the present invention.
2 is an exemplary view showing a molding process as an embodiment of the present invention;
3 is an exemplary view showing a use state of the present invention;

본 발명은 비닐하우스의 하우스 골조에 장착되는 레일지지구(100)를 보다 더 저렴하면서도 견고하게, 또 외관이 더욱 더 미려 단정하게 제조하기 위한 것으로, 첨부된 도면에 의거 이를 상세히 설명하면 다음과 같다.The present invention is intended to produce a rail support member 100 mounted on a house frame of a vinyl house more inexpensively and firmly and with a clearer appearance, and will be described in detail with reference to the accompanying drawings as follows .

도1은 본 발명의 일 실시예로서 사시도이고, 도2는 성형과정을 나타낸 예시도이며, 도3은 사용상태도를 나타낸 것이다.FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is an exemplary view showing a molding process, and FIG. 3 is a state diagram of a use state.

상기 첨부도면 도1∼도3에 도시한 바와 같이 본 발명은, 먼저 파이프(P)를 소정의 길이로 절단한 뒤 전후부를 압착 성형하여 마치 두 장의 판재가 겹쳐진 형태로 되게 성형하는데, 앞부분은 상하방향에서 가압하여 압착성형하고, 뒷부분은 좌우방향에서 가압하여 압착 성형함으로서 전후부에 각각 성형편(20a')과 성형편(20')이 형성되게 하며,As shown in FIGS. 1 to 3, in the present invention, first, the pipe P is cut to a predetermined length, and then the front and rear portions are formed by compression molding so that two sheets of sheet material are superimposed. And the rear portion is pressed and formed in the left and right direction so that the molded piece 20a 'and the molded piece 20' are formed on the front and rear portions, respectively,

이어서, 상기 성형편(20a')은 상부에 개구부(20a")를 가진 레일클립(20a)으로 되게 성형하여 레일(R)이 안정적으로 안착 지지되게끔 하고, 성형편(20')은 하우스골조(10)를 감싼 상태에서 볼트 및 너트로 된 체결부재(40)로 견고하게 조립 고정시킬 수 있게 하는 체결구멍(21)(21')과 개구부(20")를 가진 C형클립(20)으로 성형한 것이다.Next, the molded piece 20a 'is molded into a rail clip 20a having an opening 20a' at its upper portion to stably support the rail R. The molded piece 20 ' (20) having a fastening hole (21) (21 ') and an opening (20' ') for firmly fixing the fastening member (40) Molded.

특히 본 발명은 파이프(P)의 전후부를 압착하여 성형편(20a')(20')을 형성하는 과정에서 성형편(20a')과 성형편(20') 사이에 자연적으로 보강부(30)가 형성되게 됨으로써 제조 후 외관이 더욱 더 견고해 보이면서 안정감도 뛰어나 보이게 되며, 따라서 하우스골조(10)에 본 발명의 레일지지구(100)를 장착시키고, 상기 레일지지구(100) 선단에 형성된 레일클립(20a)에 레일(R)을 안착시키게 되면, 수확물이 실린 수레가 고하중이더라도 레일지지구(100)가 변형되거나 처지는 등의 문제점이 전혀 없어 안정감을 줄 수 있게 되는 것이다.Particularly, according to the present invention, the reinforcing portion 30 is naturally formed between the molded piece 20a 'and the molded piece 20' in the process of forming the molded pieces 20a 'and 20' by pressing the front and rear portions of the pipe P, The rail support 100 of the present invention is mounted on the house frame 10 and the rail 100 is mounted on the rail 100 formed on the front end of the rail support 100, When the rail R is seated on the clip 20a, there is no problem such that the rail support 100 is deformed or sagged even if the cart with the harvested product is subjected to a heavy load.

이와 같이 제조되는 본 발명의 레일지지구(100)는 소정의 길이로 절단된 파이프(P)를 프레스 등의 장비를 이용하여 C형클립(20)과 레일클립(20a)이 한 몸체로 되게 끔 성형함으로서 종래 용접이나 리벳팅공법으로 제조했던 레일지지구에 비해 제조비용이 크게 절감됨은 물론 생산에 따른 시간이 크게 절감되면서 생산자동화가 가능하여 상품성 증대와 더불어 농가부담 극소화를 유도할 수 있게 되는 것이다.In the rail guide 100 of the present invention thus manufactured, the C-shaped clip 20 and the rail clip 20a are made into one body by using a press or the like using a pipe P cut to a predetermined length It is possible to greatly reduce the manufacturing cost as well as to greatly reduce the production time and to automate the production so as to increase the merchantability and to minimize the burden on the farmhouse .

또한, 본 발명은 도시된 실시예에 한정되지 않으며 상기 실시예 외에 다양한 방법으로 제조될 수 있는 것으로 본 발명의 목적과 사상의 범위 내에서 다양하게 변형 실시할 수 있다.In addition, the present invention is not limited to the embodiments shown in the drawings, but may be manufactured in various ways other than the above embodiments, and various modifications may be made within the scope and spirit of the present invention.

따라서 파이프를 가압 성형하여 C형클립(20)과 레일클립(20a), 그리고 상기 C형클립(20)과 레일클립(20a) 사이에 보강부(30)가 일체로 형성된 레일지지구라면, 그 형상이나 구조의 변형이 초래된 구성이라 하더라도 당연히 본 발명의 권리범위에 속한다 할 것이다.Therefore, if the rail is provided with the C-type clip 20 and the rail clip 20a by press-forming the pipe, and the reinforcing portion 30 is integrally formed between the C-type clip 20 and the rail clip 20a, It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

10 : 하우스 골조 P : 파이프 20 : C형클립
20a : 레일클립 20',20a': 성형편 R : 레일
30 : 보강부 40 : 체결부재 20",20a":개구부
21,21': 체결구멍 100: 레일지지구10: House frame P: Pipe 20: C-shaped clip
20a: rail clip 20 ', 20a': formed piece R: rail
30: reinforcement member 40: fastening member 20 ", 20a": opening
21, 21 ': fastening hole 100: rail support

Claims (1)

하우스 골조(10)에 장착되어 레일(R)을 안착 고정시키는 레일지지구에 있어서,
소정의 길이로 절단된 파이프(P)의 전후부를 가압 압착시키되, 뒷부분은 좌우방향에서 가압 압착시켜 성형편(20')을 형성하고, 앞부분은 상하방향에서 압착시켜 성형편(20a')을 형성함으로서 성형편(20')과 성형편(20a') 사이에 보강부(30)가 형성되게 하되, 상기 성형편(20')의 끝단부분과 선단부분에 볼트 및 너트로 된 체결부재(40)로 체결 고정시킬 수 있는 체결구멍(21)(21')을 천공한 다음,
성형편(20')은 하우스골조(10)에 끼워 고정시킬 수 있도록 개구부(20")가 형성되도록 성형하고,
성형편(20a')은 레일(R)을 끼워 안착시킬 수 있도록 상부에 개구부(20a")가 형성되게끔 성형함으로서 C형클립(20)과 레일클립(20a)이 한 몸체로 된 레일지지구(100)를 제조함을 특징으로 하는 비닐하우스용 레일지지구의 제조방법.1. A rail support member mounted on a house frame (10) to securely fix a rail (R)
The front and rear portions of the pipe P cut to a predetermined length are pressed and adhered while the rear portion is pressed and adhered in the left and right direction to form the molded piece 20 'and the front portion is pressed in the vertical direction to form the molded piece 20a' And a reinforcing part 30 is formed between the forming part 20 'and the forming part 20a' so that a fastening member 40 made of bolts and nuts is formed at the end part and the tip part of the forming part 20 ' The fastening holes 21 and 21 'which can be fastened and fixed by the fastening holes 21'
The molded part 20 'is formed so that the opening 20''is formed so as to be fitted and fixed to the house frame 10,
The molded piece 20a 'is molded so that an opening 20a''is formed in the upper portion thereof so as to allow the rail R to be seated therebetween so that the C-type clip 20 and the rail clip 20a are integrally formed with a rail- 100). ≪ RTI ID = 0.0 > 11. < / RTI >
KR1020140087512A 2014-07-10 2014-07-10 A rail supporter for greenhouse KR101650066B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102051657B1 (en) * 2018-10-05 2020-01-08 정영훈 Rafters for vinyl greenhouse

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200392441Y1 (en) * 2005-05-24 2005-08-17 김옥기 A Prop structure of Vinyl-house for Vine culture
KR100685176B1 (en) * 2005-08-25 2007-02-22 이연희 Vinyl fixed body
KR100882454B1 (en) * 2007-10-31 2009-02-06 이연호 A apparatus for combination of steel members for house
KR20120000717U (en) * 2010-07-20 2012-02-02 정미우 Pipe connector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200392441Y1 (en) * 2005-05-24 2005-08-17 김옥기 A Prop structure of Vinyl-house for Vine culture
KR100685176B1 (en) * 2005-08-25 2007-02-22 이연희 Vinyl fixed body
KR100882454B1 (en) * 2007-10-31 2009-02-06 이연호 A apparatus for combination of steel members for house
KR20120000717U (en) * 2010-07-20 2012-02-02 정미우 Pipe connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102051657B1 (en) * 2018-10-05 2020-01-08 정영훈 Rafters for vinyl greenhouse

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