KR200428625Y1 - Half-radius tube for telegraph pole - Google Patents

Half-radius tube for telegraph pole Download PDF

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Publication number
KR200428625Y1
KR200428625Y1 KR2020060020098U KR20060020098U KR200428625Y1 KR 200428625 Y1 KR200428625 Y1 KR 200428625Y1 KR 2020060020098 U KR2020060020098 U KR 2020060020098U KR 20060020098 U KR20060020098 U KR 20060020098U KR 200428625 Y1 KR200428625 Y1 KR 200428625Y1
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KR
South Korea
Prior art keywords
tube
radius
sealing member
telegraph
pole
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KR2020060020098U
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Korean (ko)
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최병하
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마주전기통신(주)
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Priority to KR2020060020098U priority Critical patent/KR200428625Y1/en
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    • 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
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
    • 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
    • F16L3/04—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing and pressing it against a wall or other support
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0418—Covers or lids; Their fastenings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

본 고안은 실링부재가 구비된 전신주용 반경관에 관한 것으로, 보다 상세하게는 지상에 노출되어 전신주를 따라 인상되는 케이블을 외부 충격으로부터 보호하기 위하여 전신주에 부설되는 반경관의 절단부에 실링부재가 부착됨으로써 반경관의 날카로운 절단부가 노출되지 않아 반경관의 취급과 설치 작업 및 설치 후에도 안전한 전신주용 반경관에 관한 것이다.The present invention relates to a radial tube for telegraph pole provided with a sealing member, more specifically, the sealing member is attached to the cut portion of the radial tube laid in the telegraph pole to protect the cable exposed to the ground and pulled along the telephone pole from external impact Thus, the sharp cutout portion of the radius tube is not exposed, and thus, it is related to the radius pipe for telegraph poles which is safe even after handling and installing the radius tube.

본 고안에 따른 전신주용 반경관은, 지하에서 매설되어 전신주로 인상되는 케이블을 보호하기 위하여 전신주에 부설되는 전신주용 반경관에 있어서, 상기 반경관의 절단부에는 실링부재가 그 절단부를 감싸도록 부착된 것을 특징으로 한다.Radial tube for telegraph poles according to the present invention, in the telegraph pole radial tube which is laid in the telegraph pole to protect the cable is buried underground to be raised to the pole, the cut portion of the radius tube is attached to the sealing member to surround the cut portion It is characterized by.

전신주, 반경관, 실링부재 Telegraph pole, radius tube, sealing member

Description

전신주용 반경관{HALF-RADIUS TUBE FOR TELEGRAPH POLE}Radial tube for telegraph poles {HALF-RADIUS TUBE FOR TELEGRAPH POLE}

도 1은 종래의 일반적인 전신주용 반경관의 설치상태를 도시한 측면도.1 is a side view showing a state of installation of a conventional general telegraph radius tube.

도 2는 본 고안의 일실시예에 따른 전신주용 반경관을 도시한 사시도.Figure 2 is a perspective view showing a radial tube for telegraph poles according to an embodiment of the present invention.

도 3a는 도 2의 A-A에서의 단면을 도시한 단면도.3A is a cross-sectional view illustrating a cross section taken along the line A-A in FIG. 2.

도 3b는 도 2의 B-B에서의 단면을 도시한 단면도.3B is a cross-sectional view illustrating a cross section taken along B-B in FIG. 2.

도 4은 본 고안의 다른 실시예에 따른 전신주용 반경관을 도시한 사시도.Figure 4 is a perspective view showing a telephoto radial tube according to another embodiment of the present invention.

도 5는 도 4의 C-C에서의 단면을 도시한 단면도.FIG. 5 is a sectional view of a section taken along the line C-C in FIG. 4; FIG.

<주요 도면부호에 대한 간단한 설명><Short description of the major reference symbols>

10 전신주10 telephone poles

20 케이블20 cables

21 보호관    21 sheriff

30, 130 반경관30, 130 radius tube

30a, 30b, 130a, 130b 절단부     30a, 30b, 130a, 130b cuts

31 체결홈     31 Tightening groove

40, 140 실링부재40, 140 sealing member

41 삽입홈     41 Insertion groove

50 고정밴드50 fixing band

W 반경관의 두께의 폭Width of the radius W radius

S 실리콘건S silicone gun

본 고안은 실링부재가 구비된 전신주용 반경관에 관한 것으로, 보다 상세하게는 지상에 노출되어 전신주를 따라 인상되는 케이블을 외부 충격으로부터 보호하기 위하여 전신주에 부설되는 반경관의 절단부에 실링부재가 부착됨으로써 반경관의 날카로운 절단부가 노출되지 않아 반경관의 취급과 설치 작업 및 설치 후에도 안전한 전신주용 반경관에 관한 것이다.The present invention relates to a radial tube for telegraph pole provided with a sealing member, more specifically, the sealing member is attached to the cut portion of the radial tube laid in the telegraph pole to protect the cable exposed to the ground and pulled along the telephone pole from external impact Thus, the sharp cutout portion of the radius tube is not exposed, and thus, it is related to the radius pipe for telegraph poles which is safe even after handling and installing the radius tube.

도 1을 참조하면 종래에는, 일반적으로 전화국 또는 통신회사에서는 여러 사용자에게 통신을 사용할 수 있도록 인근의 전신주(1), 옥상 등에 분기함(5)을 부설하고, 지하에 매설되어 상기 전신주(1)를 따라 인상된 케이블(2)이 상기 분기함(5)에 연결되어 여러 사용자에게 각각 분기된다. 이때, 상기 전신주(1)를 따라 지하에서 인상된 케이블(2)은 지상에 그대로 노출되게 되므로 보행자, 차량 등의 외부 충격으로부터 이를 보호하기 위하여 반경관(3)을 설치하여 결속밴드(4)로 전신주(1)에 고정하게 된다.Referring to FIG. 1, in the related art, a telephone company or a telecommunication company generally installs a telephone pole (1), a branch (5), etc. in a nearby telegraph pole (1), a rooftop, etc. so that communication can be used for various users. A cable 2 pulled along is connected to the branch box 5 and branched to several users, respectively. At this time, the cable (2) raised from the basement along the telephone pole (1) is exposed to the ground as it is to be exposed to the ground to install a radial tube (3) to protect it from external impacts such as pedestrians, vehicles to the binding band (4) It is fixed to the telephone pole (1).

상기 반경관(3)은 주로 철재의 판재를 적당 길이만큼 절단하고, 반원의 단면형상을 갖도록 절곡 성형하여 전신주(1)에 설치된다. 상기와 같이 설치된 반경관(3)은 그 두께가 비교적 두껍기 때문에 상기 반경관(3)의 상하 절단부(3a)와 측 부 절단부(3b)가 예리하게 형성되어 상기 반경관(3)의 취급시나 전신주(1)에서의 가설작업중에 작업자가 부상하거나 케이블이 손상되어 합선, 탈선될 뿐만 아니라 가설 후에도 절단부의 날카로운 부분이 보행자에 위험요소가 되는 등의 문제점이 발생되었다.The radius tube 3 is mainly cut into a steel plate by an appropriate length, bent to have a semicircular cross-sectional shape, and installed on the telephone pole 1. Since the radial tube 3 installed as described above has a relatively thick thickness, the upper and lower cut portions 3a and the side cut portions 3b of the radial tube 3 are sharply formed so that the radial tube 3 can be handled or telegraph poles. During the construction work in (1), the worker was injured or the cable was damaged to short-circuit and derail, and even after the construction, the sharp part of the cutting part became a danger to the pedestrian.

본 고안은 상기와 같은 문제점을 해결하기 위하여 고안된 것으로 본 고안의 목적은 지상에 노출되어 전신주를 따라 인상되는 케이블을 외부 충격으로부터 보호하기 위하여 전신주에 부설되는 반경관의 절단부에 실링부재가 부착됨으로써 반경관의 날카로운 절단부가 노출되지 않아 반경관의 취급과 설치 작업 및 설치 후에도 안전한 전신주용 반경관을 제공하기 위한 것이다.The present invention is designed to solve the above problems, and the object of the present invention is that the sealing member is attached to the cut portion of the radial tube attached to the telegraph pole to protect the cable which is exposed to the ground and is pulled along the telephone pole from external impact. The sharp cuts of the policeman are not exposed, so it is intended to provide a safe for telegraph poles even after handling and installing the radial pipes.

상기와 같은 목적을 달성하기 위하여 본 고안에 따른 실링부재가 구비된 전신주용 반경관은, 지하에서 매설되어 전신주로 인상되는 케이블을 보호하기 위하여 전신주에 부설되는 전신주용 반경관에 있어서, 상기 반경관의 절단부에는 실링부재가 그 절단부를 감싸도록 부착된 것을 특징으로 한다.Radial tube for telegraph pole provided with a sealing member according to the present invention to achieve the above object, in the telegraph pole radial tube which is installed in the telegraph pole to protect the cable is buried underground and raised to the telegraph pole, the radius tube The cut portion of the sealing member is characterized in that attached to surround the cut portion.

또한 본 고안에 따른 전신주용 반경관은, 상기 실링부재는, 그 길이방향으로 길게 삽입홈이 형성되어 상기 반경관의 절단부를 감싸도록 절단부가 상기 삽입홈에 삽입되어 부착된 것을 특징으로 한다.In addition, the telescoping radial tube according to the present invention, the sealing member is characterized in that the insertion groove is formed to be inserted into the insertion groove is inserted into the insertion groove so that the insertion groove is formed long in the longitudinal direction.

또한, 본 고안에 따른 전신주용 반경관은, 상기 실링부재는, 상기 반경관의 절단부를 감싸도록 수지제가 도포 및 경화되어 부착된 것을 특징으로 한다.In addition, the whole body column radius tube according to the present invention, the sealing member is characterized in that the resin is coated and cured so as to surround the cut portion of the radius tube.

이하에서는 도면에 도시된 실시예를 참조하여 본 고안에 따른 전신주용 반경관을 상세하게 설명하기로 한다.Hereinafter, with reference to the embodiment shown in the drawings will be described in detail the telegraph radius tube according to the present invention.

도 2는 본 고안의 일실시예에 따른 전신주용 반경관을 도시한 사시도이고, 도 3a는 도 2의 A-A에서의 단면을 도시한 단면도이며, 도 3b는 도 2의 B-B에서의 단면을 도시한 단면도이다.FIG. 2 is a perspective view illustrating a telescoping radial tube according to an embodiment of the present invention, FIG. 3A is a cross-sectional view illustrating a cross section taken along AA of FIG. 2, and FIG. 3B is a cross-sectional view taken along BB of FIG. 2. It is a cross section.

도 2, 도 3a 및 3b를 참조하면, 본 고안의 일실시예에 따른 전신주용 반경관(30)은 지하에서 매설되어 전신주(10)로 인상되는 케이블(20)을 보호하기 위하여 전신주에 부설된다. 상기 전신주(10)에는 지하에서 매설된 케이블(20)이 상부에 설치된 분기함(도면에 미도시)으로 연결되도록 상기 전신주(10)의 일측으로 인상된다. 이 때문에 지상에 노출된 상기 케이블(20)이 행인, 차량, 강풍 등의 외력으로부터 훼손되는 것을 방지하기 위하여 소정 높이로 형성된 반경관(30)이 설치된다.2, 3a and 3b, the telegraph pole radius tube 30 according to an embodiment of the present invention is buried in the telegraph pole to protect the cable 20 is buried underground and raised to the telegraph pole 10 . The telephone pole 10 is pulled to one side of the telephone pole 10 so that the cable 20 buried in the basement is connected to the branch box (not shown in the figure) installed on the top. For this reason, in order to prevent the said cable 20 exposed to the ground from being damaged from external forces, such as a pedestrian, a vehicle, and a strong wind, the radial tube 30 formed in predetermined height is provided.

상기 반경관(30)은 상기 케이블(20)이 인상되는 부분에서 전신주(10)에 밀착되게 위치된 상태에서 반경관(30)의 표면에 형성된 체결홈(31)에 상기 전신주(10)를 감싸는 고정밴드(50)를 양측에 삽입시키고 타측에서 고정밴드(50)를 체결 마무리함으로써 전신주(10)에 고정 설치된다. 상기와 같이 설치된 반경관(30)은 상기 케이블(20)의 외부에 형성된 보호관(21)에 의해 1차적으로 밀폐된 케이블(20)이 외부 충격으로부터 2차적으로 차단 보호되도록 하는 공간을 형성하게 된다.The radial tube 30 wraps the telephone pole 10 in a fastening groove 31 formed in the surface of the radial tube 30 in a state in which the cable 20 is in close contact with the telephone pole 10 at the portion where the cable 20 is pulled up. The fixing band 50 is inserted into both sides and the fixing band 50 is fastened and finished at the other side to be fixed to the telephone pole 10. The radial tube 30 installed as described above forms a space for the cable 20, which is primarily sealed by the protection tube 21 formed on the outside of the cable 20, to be blocked and protected from external shock. .

본 발명은 상기와 같이 설치되는 반경관(30)의 절단부(30a,30b)에 실링부재(40)가 그 절단부(30a,30b)를 감싸도록 부착된 것을 특징으로 한다.The present invention is characterized in that the sealing member 40 is attached to the cut portions 30a and 30b of the radial tube 30 installed as described above to surround the cut portions 30a and 30b.

특히, 도 2, 도 3a 및 도 3b에 도시된 실시예는 상기 실링부재(40)가 그 길 이방향으로 길게 삽입홈(41)이 형성되어 상기 반경관(30)의 절단부(30a,30b)를 감싸도록 절단부(30a,30b)가 상기 삽입홈(41)에 삽입되어 상기 반경관(30)에 부착된다. 즉, 상기 실링부재(40)는 내부방향으로 움푹한 삽입홈(41)이 형성되어 상기 반경관(30)의 절단부(30a,30b)가 그 삽입홈(41)에 삽입되어 결합되게 형성된다. 상기 실링부재(40)는 내부방향으로 움푹한 삽입홈(41)이 형성되어 상기 반경관(30)의 절단부(30a,30b)를 감싸도록 그 절단부(30a,30b)에 끼워져 반경관(30)에 부착된다. 상기와 같이 반경관(30)의 절단부(30a,30b)가 실링부재(40)의 삽입홈(41)에 삽입되어 빠지지 않도록 접착제를 사용하는 것이 바람직하다. 또한, 상기 실링부재(40)의 삽입홈(41)을 그 선단(41a)의 폭이 상기 반경관(30)의 두께의 폭(W)보다는 작게 형성시킴으로써 상기 절단부(30a,30b)에 끼움결합된 실링부재(40)가 수지재 특유의 탄성력에 의해 서로 단단하게 지지되게 구성되어 질 수 있다. 상기 실링부재(30)는 고무나 수지와 같은 부드러운 재질로 형성되는 것이 바람직하다.In particular, the embodiment shown in Figures 2, 3a and 3b is the insertion member 41 is formed long in the sealing member 40 in the longitudinal direction cut portion 30a, 30b of the radial tube 30 Cutting portions 30a and 30b are inserted into the insertion grooves 41 so as to surround the radiator tubes 30. That is, the sealing member 40 is formed with a recessed insertion groove 41 is formed in the inner direction so that the cut portions (30a, 30b) of the radial tube 30 is inserted into the insertion groove 41 is coupled. The sealing member 40 is inserted into the cut portion (30a, 30b) to surround the cut portion (30a, 30b) of the radial tube 30 is formed with a recessed insertion groove 41 in the inner direction of the radius tube (30) Is attached to. As described above, it is preferable to use an adhesive so that the cut portions 30a and 30b of the radial tube 30 are not inserted into the insertion groove 41 of the sealing member 40. In addition, the insertion groove 41 of the sealing member 40 is fitted to the cut portions (30a, 30b) by forming the width of the tip (41a) smaller than the width (W) of the thickness of the radius tube (30) The sealing member 40 can be configured to be firmly supported by each other by the elastic force unique to the resin material. The sealing member 30 is preferably formed of a soft material such as rubber or resin.

상술한 바와 같이 반경관(30)은 비교적 두꺼운 철재물로 제작되므로, 제작시 그 절단부(30a,30b)가 매우 예리하게 형성된다. 그런데, 도 3a 및 도 3b를 참조하면, 상기 반경관(30)의 절단부(30a,30b)를 감싸도록 실링부재(40)가 부착됨으로써 날카로운 절단부(30a,30b)가 노출되지 않아 반경관(30)의 취급 및 설치시 작업자의 부상이 방지되고, 파지가 용이하여 작업이 수월하게 될 뿐만 아니라 반경관(30)의 설치 후에도 날카로운 부분이 노출되지 않아 안전하게 된다.As described above, since the radius tube 30 is made of a relatively thick steel material, its cut portions 30a and 30b are formed very sharply during manufacture. However, referring to FIGS. 3A and 3B, since the sealing member 40 is attached to surround the cut portions 30a and 30b of the radius tube 30, the sharp cut portions 30a and 30b are not exposed so that the radius tube 30 is not exposed. Injury of the operator is prevented during handling and installation of), easy to grip and easy to work, and even after the installation of the radius tube 30, the sharp part is not exposed and is safe.

한편, 도 4는 본 고안의 다른 실시예에 따른 전신주용 반경관을 도시한 사시도이고, 도 5는 도 4의 C-C에서의 단면을 도시한 단면도이다.On the other hand, Figure 4 is a perspective view showing a telescoping radial tube according to another embodiment of the present invention, Figure 5 is a cross-sectional view showing a cross section in C-C of FIG.

도 4 및 도 5를 참조하면, 본 고안의 다른 실시예에 따른 전신주용 반경관은 상기 실링부재(140)가 상기 반경관(130)의 절단부(130a,130b)를 감싸도록 실리콘, 수지와 같이 도포되어 경화되는 재질이 도포 및 경화되어 부착된 것을 특징으로 한다. 즉, 도 4 및 도 5에 도시된 전신주용 반경관(130)은 상기 실링부재(140)가 상기 반경관(130)의 절단부(130a,130b)의 날카로운 단면에 도포되어 경화된 것이다. 상기와 같은 실링부재(140)의 도포는 도 4에 도시된 바와 같이 실리콘건(S) 등의 장비로 실리콘을 상기 반경관(130)의 절단부(130a,130b)를 감싸도록 도포함으로써 이루어질 수 있다.4 and 5, the whole body main radius tube according to another embodiment of the present invention, such as silicone, resin so that the sealing member 140 surrounds the cut portions (130a, 130b) of the radius tube 130 The material that is applied and cured is applied and cured and attached. That is, in the telegraph pole radius tube 130 illustrated in FIGS. 4 and 5, the sealing member 140 is applied to a sharp end surface of the cut portions 130a and 130b of the radius tube 130 and cured. Application of the sealing member 140 as described above may be made by applying the silicon to wrap the cut portions (130a, 130b) of the radius tube 130, such as a silicon gun (S) as shown in FIG. .

상기와 같은 구성에 의하여 본 고안에 따른 전신주용 반경관은 지하에서 전신주를 따라 인상되어 지상에 노출된 케이블을 외력으로부터 보호하기 위하여 설치된 반경관의 예리한 절단부에 실링부재가 부착됨으로써 작업자가 상기 절단부에 접촉되어 부상당하는 것을 예방할 뿐만 아니라, 예리한 절단부에 의해 케이블이 손상되는 것을 방지할 수 있는 장점을 갖는다.Radial tube for telegraph poles according to the present invention by the configuration as described above is pulled along the telephone pole in the basement and the sealing member is attached to the sharp cut portion of the radial tube installed to protect the cable exposed to the ground from the external force by the operator to the cutting portion Not only does it prevent contact and injury, but it also has the advantage of preventing the cable from being damaged by sharp cuts.

앞에서 설명되고, 도면에 도시된 전신주용 반경관은 본 고안을 실시하기 위한 하나의 실시예에 불과하며, 본 고안의 기술적 사상을 한정하는 것으로 해석되어서는 안된다. 본 고안의 보호범위는 이하의 실용신안등록청구범위에 기재된 사항에 의해서만 정하여지며, 본 고안의 요지를 벗어남이 없이 개량 및 변경된 실시예는 본 고안이 속하는 기술분야에서 통상의 지식을 가진 자에게 자명한 것인 한 본 고안의 보호범위에 속한다고 할 것이다.The above-described whole body radius radiator shown in the drawings is only one embodiment for carrying out the present invention, and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is determined only by the matters described in the following Utility Model Registration Claims, and the embodiments of the present invention which have been improved and changed without departing from the gist of the present invention are obvious to those skilled in the art. As long as it is one of the protection scope of the present invention.

Claims (3)

지하에서 매설되어 전신주로 인상되는 케이블을 보호하기 위하여 전신주에 부설되는 전신주용 반경관에 있어서,In the telegraph pole radial tube buried in the telegraph pole to protect the cable is buried underground and raised to the pole, 상기 반경관의 절단부에는 실링부재가 그 절단부를 감싸도록 부착된 것을 특징으로 하는 전신주용 반경관.Radial tube for telegraph poles, characterized in that the sealing member is attached to the cut portion of the radius tube to surround the cut portion. 제 1항에 있어서,The method of claim 1, 상기 실링부재는, 그 길이방향으로 길게 삽입홈이 형성되어 상기 반경관의 절단부를 감싸도록 절단부가 상기 삽입홈에 삽입되어 부착된 것을 특징으로 전신주용 반경관.The sealing member has a longitudinal insertion groove is formed in the longitudinal direction, the cutting pipe is inserted into the insertion groove so as to surround the cut portion of the radial tube, characterized in that the whole body main radius tube. 제 1항에 있어서,The method of claim 1, 상기 실링부재는, 상기 반경관의 절단부를 감싸도록 수지제가 도포 및 경화되어 부착된 것을 특징으로 하는 전신주용 반경관.The sealing member is a radial tube for telegraph poles, characterized in that the resin is applied and cured so as to surround the cut portion of the radius tube.
KR2020060020098U 2006-07-25 2006-07-25 Half-radius tube for telegraph pole KR200428625Y1 (en)

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KR2020060020098U KR200428625Y1 (en) 2006-07-25 2006-07-25 Half-radius tube for telegraph pole

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