baber/WOPTO huggingface dataset:
Patent KR-100730439-B1 (KR)
IPC: B29D30/08
Filed: 2006-08-04
Granted: 2007-06-19
Abstract: 본 발명은 일종의 복합타이어 제조 기술에 관한 것으로, 보다 구체적으로는 일종의 폴리우레탄-고무 복합 타이어 및 그 제조 방법에 관한 것이다. 본 발명은 폴리우레탄 트레드-고무 카커스의 복합 구조를 채용하고 올리고머 다원자 알코올/테트라하이드로푸란-프로필렌옥사이드 공중합 에테르-파라벤젠 디이소시아네이트 계열의 폴리우레탄과, 올리고머 다원자 알코올/히드록시 폴리부타디엔-디페닐메탄 디이소시아네이트 계열의 폴리우레탄 배합 방법에 대하여 최적화와 개질을 행하고, 카커스에 대해 표면처리를 하고 주입을 통해 완성한 복합 구조의 환경 보호형 타이어를 제공한다.  상기 복합 타이어는 운행 발열이 적고 내열성이 높아 고속 운행의 요건을 만족시킬 뿐만 아니라 수명도 길다.  상기 복합 타이어의 제조 방법은 쉽고 원가가 저렴하며 공업화 생산이 용이하다.
Patent KR-100788986-B1 (KR)
Title: Block type led module and control method thereof
Inventor: JEONG JUN HWA
IPC: G09F13/04
Filed: 2006-08-11
Granted: 2008-01-02
Abstract: A block type LED(Light Emitting Diode) module and a control method thereof are provided to repair or exchange LEDs without changing the whole LED module by separately installing plural LED modules and to irradiate the light normally to a guide sign sheet of a road sign plate by increasing the output of the LED around the defective LED. A block type LED module for irradiating the light to a guide sign sheet printed with words and signs is composed of an LED module unit(110) composed of a substrate(112) and plural LEDs(111) installed on the substrate; a control unit turning on or off the LEDs installed at the LED module unit, controlling the amount of current applied to each LED module unit, and detecting an error of the LED according to the amount of current applied to the LED module unit; and an LED module housing(120) containing the LED module unit and the control unit. The LED module housing comprises a box-shaped insertion unit(121) having an opened back side; a flange-shaped fixing unit(123) extended outward from the rim of the back side of the insertion unit and including a combining hole(122); and a bracket extended inward from the rim of the back side of the insertion unit and including a combining hole. The LED module housing is inserted from the back side of the housing receiving the guide sign sheet. The LED module housing is installed at one of a road sign plate and an advertising electric signboard.
Patent KR-100822423-B1 (KR)
IPC: H01L21/027
Filed: 2006-08-23
Granted: 2008-04-16
Abstract: 본 발명은 하지(下地) 표면에 액적을 배치하여 양호한 전면 형상 패턴을 설치하는 방법을 제공하는 것을 과제로 한다. 
     층 형성 방법이, 하지 표면 위에서 서로 고립된 2개의 도트 형상 패턴이 얻어지도록 상기 하지 표면의 2개의 부위 각각에 제 1 액적을 배치하는 제 1 공정과, 상기 2개의 도트 형상 패턴을 상기 하지 표면에 대하여 고정시키는 제 2 공정과, 적어도 상기 2개의 도트 형상 패턴 사이의 상기 하지 표면을 제 2 액적에 대하여 친액화하는 제 3 공정과, 상기 제 3 공정 후에, 상기 2개의 도트 형상 패턴 사이의 상기 하지 표면에 상기 2개의 도트 형상 패턴을 연결시키는 상기 제 2 액적을 배치하는 제 4 공정을 포함하고 있다. 
       
     액적, 도전층, 개구부, 뱅크, 절연층
Patent KR-100736356-B1 (KR)
Title: Image edge detection apparatus and method, image sharpness emphasizing apparatus and method, recorded medium recorded the program performing it
Inventor: NOH YO HWAN
IPC: H04N5/335
Filed: 2006-08-25
Granted: 2007-07-06
Abstract: An apparatus and a method for detecting an edge of an image, an apparatus and a method for emphasizing image sharpness, and a recording medium for recording programs of the methods are provided to maximally represent features of an original image at a central portion of the image and prevent reduction of sharpness at a periphery portion of the image by multiplying an edge by a gain. An image input part(410) receives an image. An edge detecting part(420) distinctly detects an edge in accordance with an area of received image. A dynamic range smoothing part(430) smoothes a dynamic range of the image. A sharpness improving part(440) applies the detected edge to the image having the smoothed dynamic range. An image output part(450) outputs an image to which the edge is applied.
Patent KR-100820725-B1 (KR)
IPC: B24B7/22
Filed: 2006-08-28
Granted: 2008-04-11
Abstract: 본 발명은 시멘트 바닥 등의 연마 작업에 있어 발생하는 분진을 제거할 수 있는 집진장치를 구비하는 건식 연마기에 관한 것이다. 
     즉, 연마장치와 집진장치를 구비하는 건식 연마기에 있어서, 상기 집진장치는 연마장치에서 발생되는 분진이 필터부로 이송될 수 있도록 하는 분진통로부와 분진통로부를 통해 필터부로 들어온 분진과 공기를 분리할 수 있는 필터와 상기 필터를 지지하는 필터지지부와 필터에 붙어있는 분진을 털어내기 위해 필터부를 진동시킬 수 있는 바이브레이터와 분리된 분진을 저장하는 분진저장부 등으로 구성되는 필터부; 및 집진모터와 연결부(진공호스) 등으로 구성되는 구동부; 를 포함하여 구성되는 집진장치인 것을 특징으로 하는 건식 연마기에 관한 것이다. 
     본 발명은 건식 연마기의 사용에 있어 발생되는 분진을 별도의 필터 교환 없이 효율적으로 제거할 수 있는 장점이 있다. 
       
     연마기, 집진부, 필터, 바이브레이터, 타이머
Patent KR-100698373-B1 (KR)
Title: System for heat pump with four check valve for defrosting
IPC: F25B47/02
Filed: 2006-09-02
Granted: 2007-03-23
Abstract: A defrosting operation system of a heat pump having four check valves is provided to realize a stable defrosting operation system in case of heating, by stably installing a receiver tank at a rear end of a heat exchanger. A check part(7) has first, second, third, and fourth check valves(6a,6b,6c,6d) placed in a middle of an indoor heat exchanger(3) and an outdoor heat exchanger(5), wherein the check valves are independently formed. A refrigerant gas passes through one of the check valve, a receiver tank(8) storing a refrigerant of high pressure, and an expansion valve(4) throttling into a low pressure, and another check valve. An external air inflow temperature sensor(11) detects an external air temperature introduced into the outdoor heat exchanger. If a difference in a temperature between the external air inflow temperature sensor and an external air outflow temperature sensor(12) is relatively larger than a defrost reference set temperature preliminarily set in a defrost control unit(13), a cycle is converted into a cooling cycle until the difference becomes lower than the defrost reference set temperature.
Patent KR-100773439-B1 (KR)
Title: Case of mobile terminal and manufacturing method thereof
Inventor: JUNG KANG GUEN
IPC: H04B1/38
Filed: 2006-09-04
Granted: 2007-11-05
Abstract: A case for a mobile terminal and a manufacturing method thereof are provided to enable parts except patterns to be embedded in an injection unit when the patterns are formed by using mother-of-pearl, thereby preventing a pattern unit from being detached to the outside of the injection unit. An injection unit(110) forms an external shape. A pattern unit(120) is equipped with various patterns(121) exposed to the outside of the injection unit(110) from a portion of a surface, and wherein the rest of the surface where the patterns(121) are not formed are embedded in the injection unit(110). The patterns(121) formed on the portion of the surface of the pattern unit(120) are protruded to the outside compared to the rest of the surface of the pattern unit(120).
Patent KR-101257115-B1 (KR)
IPC: C09K3/14
Filed: 2006-09-07
Granted: 2013-04-22
Abstract: 본 발명의 수성 슬러리는 구리 인터커넥트를 갖는 반도체 기재를 화학적 기계적으로 연마하는데 유용하다.  상기 수성 슬러리는 산화제 0.01 내지 25 중량%, 연마제 입자 0.1 내지 50 중량%, 폴리비닐 피롤리돈 0.001 내지 3 중량%, 구리 인터커넥트의 정적 식각(static etch)을 감소시키기 위한 저해제 0.01 내지 10중량%, 구리 인터커넥트의 제거율을 증가시키기 위한 인-함유 화합물 0.001 내지 5 중량%, 연마 중에 생성되는 착화제 0.001 내지 10 중량% 및 잔량수(balance water)를 포함하며, 상기 수성 슬러리는 8 이상의 pH를 갖는다. 
     수성 슬러리, 구리 인터커넥트, 화학기계적 연마, 폴리비닐 피롤리돈
Patent KR-100850541-B1 (KR)
IPC: A61F5/045
Filed: 2006-09-12
Granted: 2008-08-05
Abstract: 본 발명은 무릎을 붙잡은 상태로 무릎과 함께 회전되는 한 쌍의 무릎홀더부(250); 무릎을 외/내회전 시키는 방향으로 상기 무릎홀더부(250)를 강제 정/역회전 반복 구동시키는 회전구동부(240); 및 상기 무릎홀더부(250)의 회전 조건을 저장하는 메모리를 구비하고, 상기 메모리에 저장된 회전 조건에 따라 상기 회전구동부(240)를 제어하는 제어부를 포함하여 이루어지는 것을 특징으로 하는 고관절 내회전 변형 교정장치를 제공한다.
Patent KR-100812361-B1 (KR)
Title: Vessel storing device for kimchi storage
Inventor: PARK KYUNG HO
IPC: F25D23/00
Filed: 2006-09-13
Granted: 2008-03-11
Abstract: A vessel storing device for a kimchi refrigerator is provided to stack and keep various beverage vessels in the multi-stage structure in a storing chamber by mounting a vessel storing shelf in the storing chamber. A vessel storing device for a kimchi refrigerator includes a vessel storing shelf(70) formed in a storing chamber with containing spaces(70a,70b) for keeping beverage vessels(40). Division parts(80) divide the containing space of the shelf into a plurality of spaces. A holding rack(90) is coupled with the division parts at a side to support the defining parts and detachably coupled with the shelf at the other side.
Patent KR-100650064-B1 (KR)
Title: The electric pole high-pressure point undergroundwhole line for subterranean laying under the ground
Inventor: KIM BYUNG HO
IPC: E04H12/00
Filed: 2006-09-15
Granted: 2006-11-29
Abstract: A supporter for a high-pressure cable of an electric pole is provided to prevent the damage of the electric pole and leakage, electric shock and short of the high-pressure cable, by using a protection member installed on the outer of the electric pole. A protection member(10) is formed cylindrically, and has a number of installation grooves(11) radially on the outer circumference. A tube body(20) is bonded to the installation grooves formed on the outer circumference of the protection member, and protects a high-pressure cable(C) on the ground and underground. Cover bodies(30a,30b) are bonded to the outer plane of the protection member through a bonding protrusion(30a') and a bonding groove(30b'), and a number of protection holes(32) are connected to the installation groove of the protection member to protect the tube body.
Patent KR-100747983-B1 (KR)
Title: Dead volt way electromagnet door lock
Inventor: JANG CHEONG
IPC: E05B47/00
Filed: 2006-09-20
Granted: 2007-08-08
Abstract: A dead bolt-type electromagnet door lock is provided to maximize crime prevention and security effects by locking a dead bolt through a magnetic sensor and a limit switch only when a door is exactly closed. In a dead bolt-type electromagnet door lock, a door plate(100) having a permanent magnet(110) and a dead bolt insertion hole(120) is fixed to a door. A solenoid(200) having a receiving groove(210) is driven according to an electrical signal. A body joined to the front end of the solenoid comprises a shaft(310) inserted into the receiving groove of the solenoid and operated according to driving of the solenoid; an operating piece(330) combined to the front end of the shaft through a pin and moved according to the operation of the shaft; a first spring(340) fitted to the outer peripheral surface of the shaft to supply return power to the operating piece; a dead bolt(350) moved back and forth according to the movement of the operating piece, and protruded outward or inserted to the inside; a second spring(360) fitted to the outer peripheral surface of the dead bolt to supply return power; a limit switch(370) checking whether the dead bolt is protruded or not, by sensing the motion of the operating piece; and a housing(380) fixed with the limit switch, hinge-combined with one side of the operating piece, and provided with a dead bolt guide hole. A door frame plate(400) is fixed to a door frame to cover the body. The door frame plate is composed of a dead bolt through-hole through which the dead bolt of the body is protruded, and a magnetic sensor(420) disposed on the same line of the permanent magnet.
Patent KR-100770005-B1 (KR)
Title: Manufacturing method of holder for a kichen utensils
Inventor: LEE CHUNG KWAH
IPC: A47J43/28
Filed: 2006-09-29
Granted: 2007-10-25
Abstract: A manufacturing method of a holder for a kitchen utensil is provided to prevent separation according to use after assembly by assembling first and second ornament pieces with a handle plate while being integrated through a press operation. A manufacturing method of a holder for a kitchen utensil comprises a pressing step for a kitchen utensil body(10) of forming a pair of combining holes(12) of the ornament pieces and a pair of combining holes(13) of handle pieces at the upper and lower parts of a handle plate(11) by molding the kitchen utensil body through a press operation, forging and precisely casting steps of forming first and second ornament pieces(30,40) to mold first and second welding projections(31,41) at one side by forging and precisely casting an outer periphery while having the same width of the handle plate of the kitchen utensil body, an assembling step for the ornament pieces of reciprocally engaging the first and second welding projections of the first and second ornaments through two combining holes of the ornament pieces of the handle plate to install the first and second ornament pieces at the front/back or upper/lower parts of the handle plate symmetrically, a pressing step of integrally assembling the first and second ornament pieces with the handle plate by reciprocally attaching the first and second welding projections to two combining holes of the ornament pieces at the upper and lower parts of the handle plate while being pressurized to the first and second ornament pieces, and a riveting step for the handle pieces of inserting rivets(50) into the rivet holes and the combining holes of the handle pieces while assembling the handle pieces having rivet holes formed on the upper and lower parts between the first and second ornament pieces at the upper and lower parts to be positioned the front and back parts of the handle plate.
Patent KR-100788380-B1 (KR)
Title: Method for forming semiconductor device
Inventor: JEONG SEONG HEE
IPC: H01L21/28
Filed: 2006-09-29
Granted: 2008-01-02
Abstract: A method for forming a semiconductor device is provided to suppress generation a fence between a via-hole and a trench. A nitride layer is formed on a metal layer(102) of a semiconductor substrate(100). A first etch process is performed to form a nitride layer pattern(104b) by etching the nitride layer. An oxide layer is formed on the nitride layer pattern. A photoresist pattern is formed on the oxide layer. A second etch process is performed to etch selectively the oxide layer. The second etch process is stopped when CN gas is detected. The photoresist pattern is removed. A third etch process is performed to form a via-hole and a trench by etching selectively the nitride layer pattern. The via-hole and the trench are filled with a copper seed layer(110) and a metal layer(112) in order to form a metal line.
Patent KR-100801088-B1 (KR)
Title: Camera apparatus having multiple focus and method for producing focus-free image and out of focus image using the apparatus
Inventor: SUNG GEE YOUNG
IPC: H04N5/238
Filed: 2006-10-02
Granted: 2008-02-05
Abstract: A multi focus camera apparatus and a method for generating a focus-free image and an out-of-focus image using the same are provided to enable an image sensor unit to convert light passing through each lens at each of sensing areas into an electric signal to obtain plural images, thereby increasing DOF(Depth Of Focus). A lens unit(110) includes plural lenses for concentrating incident light. An image sensor unit(120) has plural sensing areas in correspondence with the plural lenses and converts light, passing through each lens at each sensing area, into an electric signal to obtain plural images. An angle of view correcting unit(130) performs a correction operation so that the obtained plural images can have the same size. Each lens has the same optical characteristic, has different distance from the sensing area, and processes the corrected plural images to generate a single image.
Patent KR-100778675-B1 (KR)
Title: Conveyer system for coke having apparatus for detecting trouble for screen
Inventor: NAM EUI SHIK
IPC: B65G43/00
Filed: 2006-10-17
Granted: 2007-11-22
Abstract: A coke conveying system having an apparatus for detecting a trouble of a screen is provided to prevent a trouble at the initial stage by using a systemized security unit. A coke conveying system includes a pre-process belt conveyor, a first load cell(21a), a screen(8), a second load cell, a post-process belt conveyor, a third load cell(21c), a bypass chute, and a PLC. The pre-process belt conveyor is adapted to convey coke. The first load cell detects the weight of the coke. The screen receives the coke from the pre-process belt conveyor. The second load cell detects the coke. The post-process belt conveyor receives the coke from the screen. The third load cell detects the reduction in the amount of coke together with the second load cell. The bypass chute bypasses the coke. The PLC is connected to the first to third load cells to control the pre-process belt conveyor and the screen.
Patent KR-100761237-B1 (KR)
Title: Multi core mold and press method for display device using dual core mold
Inventor: KIM HOE GON
IPC: B21D37/00
Filed: 2006-10-19
Granted: 2007-09-27
Abstract: A multi core mold which can secure price competitiveness of the products through the improvement of productivity by realizing a system that can simultaneously produce various products from scrap generated during the production of products by one mold or one set of molds, and a method for fabricating a display device using the same are provided. In a mold for fabricating a display device, a multi core mold comprises: an upper mold block(10) having an upper main mold(11) for forming a first product and an upper sub mold which is formed in a central part of the upper main mold to form a second product; and a lower mold block(13) having a lower main mold(14) and a lower sub mold(15) that correspond to the upper main mold and the upper sub mold respectively such that one set of molds can form a first product and a second product at the same time. The upper sub mold and the lower sub mold are respectively assembled into the upper main mold and the lower main mold as removable cores. The upper sub mold and the lower sub mold include a plurality of circular blocks and a plurality of adjusting pin holes formed therein.
Patent KR-100688608-B1 (KR)
Title: High voltage transformer
Inventor: SUNG KI BONG
IPC: H01F27/00
Filed: 2006-10-24
Granted: 2007-03-02
Abstract: A high voltage transformer is provided to remove an insulation layer between first and second groups by equally maintaining a voltage of each component in each group with the same distance from a first stage. A high voltage transformer includes components such as a magnetic core(2'), a high voltage converter(3'), a voltage switch unit(7'), and rectifying units(5',6'). The components are divided into a first group and a second group(2',3',5',6',7'). The components of each group include a first stage and a second stage. The second stage is positioned on the opposite side of the first stage. The first stage of the first group is positioned on the opposite side of the first stage of the second group(2',3',5',6',7'). The components of the first group increase from the first stage of a ground voltage to the second stage and the components of the second group(2',3',5',6',7') decrease from the first stage of the ground voltage to the second stage. The components of the first group and the components of the second group(2',3',5',6',7') have an equal electric potential in the same distance from the first stage of the first group and the first stage of the second group(2',3',5',6',7'). The electric potential between the components of the first group and the components of the second group(2',3',5',6',7') is equal.
Patent KR-100898678-B1 (KR)
IPC: H01L27/115
Filed: 2006-10-31
Granted: 2009-05-22
Abstract: 본 발명은 반도체 소자의 제조방법에 관한 것으로, 반도체 기판의 상부에 플로팅 게이트 패턴을 형성하는 단계와, 상기 플로팅 게이트 패턴을 포함한 상기 반도체 기판의 상부에 유전체막, 컨트롤 게이트용 도전막, 텅스텐 실리사이드막, 제1 실리콘 산화질화막, 하드 마스크막, 제2 실리콘 산화질화막 및 유기 하부 반사 방지막을 형성하는 단계와, 다수의 패턴으로 분리되도록 상기 유기 하부 반사 방지막, 제2 실리콘 산화질화막, 하드 마스크막 및 제1 실리콘 산화질화막을 순차적으로 식각하는 단계와, 상기 플로팅 게이트 패턴에 교차하는 다수의 패턴으로 분리되도록 상기 유기 하부 반사 방지막, 제2 실리콘 산화질화막, 하드 마스크막 및 제1 실리콘 산화질화막을 순차적으로 식각하는 단계와, 상기 하드 마스크막에 비중첩된 상기 텅스텐 실리사이드막 및 컨트롤 게이트용 도전막을 식각하는 단계와, 상기 하드 마스크막에 비중첩된 상기 유전체막을 제거하고, 상기 플로팅 게이트 패턴의 측면에 스페이서를 형성하는 단계와, 상기 하드 마스크막 및 스페이서에 비중첩된 상기 플로팅 게이트 패턴을 식각하는 단계로 이루어진다. 
       
     SA-STI, 게이트 식각, 커플링 비, 문턱 전압
Patent KR-100789152-B1 (KR)
Title: Polyvinyl alcohol filament with high tenacity for industrial use
Inventor: LEE KEE HWAN
IPC: D01F6/34
Filed: 2006-11-03
Granted: 2007-12-28
Abstract: A polyvinyl alcohol filament is provided to have a useful application to a tire cord, an industrial rope, a stiffener for civil work, or materials of a sheet belt or well-being materials, by manufacturing the polyvinyl alcohol filament to have high tenacity, high modulus, and low drawing rate. A polyvinyl alcohol filament is obtained by spinning a polyvinyl alcohol chip having a polymerization degree of 1,500-7,000 and a saponification degree of 99.5-99.9 mol%. The polyvinyl alcohol filament has a stress-strain curve, in which the polyvinyl alcohol filament is drawn by less than 1.0% and has an initial modulus of no less than 300-330 g/d under an initial stress of 2.0 g/d, drawn by no more than 5.0% during a stress section from 2.0 g/d to 14 g/d, and drawn by at least 1.0-1.5% during a section from a tensile stress of 14.0 g/d to the cut time of yarn.
Patent KR-100796983-B1 (KR)
Title: Printed circuit board and method for manufacturing thereof
Inventor: MOK JEE SOO
IPC: H05K3/46
Filed: 2006-11-21
Granted: 2008-01-22
Abstract: A printed circuit board and a method for manufacturing the same are provided to improve a performance of the printed circuit board having a high density since the area of an interface between a land and a paste bump becomes larger. A method for manufacturing a printed circuit board includes the steps of: forming a circuit pattern including a land on a surface of a first substrate(S100); forming a paste bump on the land of the first substrate(S200); and stacking an insulation material on the surface of the first substrate such that the paste bump passes through the insulation material, wherein the paste bump is formed to cover the land of the first substrate(S300). The method for manufacturing the printed circuit board further includes the step of stacking a second substrate formed with the circuit pattern having the land on the surface of the second substrate(S400), wherein the paste bump passing through the insulation material covers a land of the second substrate.
Patent KR-101255875-B1 (KR)
IPC: F25D23/00
Filed: 2006-12-04
Granted: 2013-04-17
Abstract: 본 발명은 냉장고의 제어 방법에 관한 것으로서, 특히 사용자의 입력에 따라 제빙 장치의 구동을 제어하는 냉장고의 제빙 제어 방법에 관한 것이다.  
     본 발명인 냉장고의 제빙 제어 방법은 입력부가 사용자로부터 제빙장치의 구동제어명령을 입력받는 단계와,상기 입력된 구동제어명령에 따라 제빙장치가 구동하는 단계를 포함함으로써, 사용자가 제빙장치의 구동에 대하여 선택이 가능하도록 하여, 사용자가 그 구동을 직접 제어할 수 있도록 하는 효과가 있다.
Patent KR-100803041-B1 (KR)
Title: Intensity reinforcing structure of rear seat pant of vehicle
Inventor: HA CHANG WOOK
IPC: B60N2/90
Filed: 2006-12-07
Granted: 2008-02-18
Abstract: A structure of reinforcing the strength of a rear seat part of a vehicle is provided to prevent the occurrence of an excessive displacement of a seat back by employing a strength reinforcing structure provided at the upper portion of the seat back and a center hinge mounting bracket provided at the lower portion of the seat back. A slit groove is formed on frames(4,5) provided at the upper end portions of two seat backs(2,3). A rail bracket is fixed to one side of the seat back and provided at upper and lower end portions thereof with a guide rail. A connect bracket includes an insertion bracket and a coupling bracket. The insertion bracket is inserted into the guide rail of the rail bracket. The coupling bracket integrally extends from one side of the insertion bracket. The coupling bracket couples two seat backs to each other by passing through neighboring two slit grooves. A fixture unit fixes the insertion bracket of the connect bracket into the guide bracket.
Patent KR-100686638-B1 (KR)
Title: A ultraviolet curing system
Inventor: KIM YONG SUN
IPC: B05C9/08
Filed: 2006-12-16
Granted: 2007-02-26
Abstract: An ultraviolet curing system is provided to secure a smoothing driving, to reduce the dust or noise by excluding a connecting part like a chain, and to freely control the opening degree and the opening and closing speed of a shutter. The ultraviolet curing system is composed of a left support plate and a right support plate(34) having holes(60) inclined vertically; a cylinder(51) and a piston(52) installed at one support plate; a moving block(54) installed at the end of the piston; and an arm(56) disposed at the moving block and connected to a shutter by connecting pins(55,57) penetrating through the vertically inclined hole. The cylinder is an air or hydraulic cylinder. An insulating plate(59) is installed between the support plate and the cylinder.