baber/WOPTO huggingface dataset:
Patent KR-20110007283-A (KR)
Title: Method automatic sensing of smelting furnace colling
Inventor: YOON HEE JONG
IPC: C21B7/10
Filed: 2009-07-16
Abstract: PURPOSE: An unmanned automatic detecting device for blast furnace cooling facilities is provided to improve the accuracy of information by the application of an auto-detecting electronic system. CONSTITUTION: A safety control system of an unmanned automatic detecting device for blast furnace cooling facilities comprises a gas detecting unit, a replacement unit, a brush valve-controlling port unit, a water level detecting unit, a repeater, a main control server and a display unit, and a wireless communication unit. The gas detecting unit senses the gas of the unmanned automatic detecting device for blast furnace cooling facilities. The replacement unit replaces a power source and a sensor of the unmanned automatic detecting device. The water level detecting unit detects the water level by automatically opening a valve when the gas is sampled. The repeater relays the signals detected in the brush valve control port unit to the main server. The wireless communication unit transmits data saved in the main control server to a center monitoring room.
Patent KR-20110007306-A (KR)
Inventor: HONG YOUNG KUN
IPC: E04G11/24
Filed: 2009-07-16
Abstract: PURPOSE: A device for lifting a temporary stand is provided to enable a temporary stand to be lifted safely and easily on a construction site or a unloading site and to simplify structure. CONSTITUTION: A device for lifting a temporary stand comprises a pair of guide frames, a pair of support frames, a guide channel, a hook and a pair of guide arms. The guide frame comprises a guide groove. The support frames are formed to support the guide frame and to face each other. The guide channel guides the hook and is formed in a diagonal form. The hook is installed between the support frames and is guided along the guide channel in the support frame. The guide arm slides perpendicularly to the lifting direction of a profile along the guide groove to be opened/closed.
Patent KR-20110009568-A (KR)
Inventor: KIM KANG SOO
IPC: G09G5/10
Filed: 2009-07-22
Abstract: 본 발명의 영상표시기기의 화질 조정을 위한 장치 및 방법에 관한 것으로, 특히, 외부로부터 입력되는 영상신호로부터 히스토그램을 분석하는 단계; 히스토그램 분석 결과 구간별 픽셀을 카운트하는 단계; 카운트된 픽셀의 비율에 따른 휘도 조정 커브를 추출하는 단계; 상기 추출된 휘도 조정 커브에 따라 입력 영상을 보정하는 단계;로 구성됨을 특징으로 한다.  
       
     영상표시기기, 휘도
Patent KR-20110012098-A (KR)
Title: Control method for refrigerator
Inventor: LEE YOUNG GUN
IPC: F25D29/00
Filed: 2009-07-29
Abstract: PURPOSE: A kimchi refrigerator controlling method capable of properly aging kimchi is provided to decrease the temperature difference between the temperature detected by a chamber temperature sensor and the kimchi. CONSTITUTION: A kimchi refrigerator controlling method comprises the following steps: stopping a load after placing kimchi into a refrigerator; operating a fan for a constant time; and detecting the chamber temperature. The detecting process is performed after the operation of the fan for a pre-fixed time.
Patent KR-20110012583-A (KR)
Title: Method of painting transport vehicles
Inventor: KWAK JI YOUNG
IPC: B05D1/36
Filed: 2009-07-31
Abstract: PURPOSE: A painting method of an operation vehicle is provided to increase scratch resistance, weather resistance, corrosion resistance, and acid resistance. CONSTITUTION: A spraying method of a transportation unit includes as follows. A first step is to spray a painting composition including hardening organic resin, glass power, alkali material group composition or alkali earth metal system composition, metal powder, and solvent. A second step is to form a glass bead projection by hardening the glass bead by spraying the glass bead on upper side of a painting composition before hardening a sprayed painting composition. The painting composition includes a glass powder 10~400 parts by weight, a alkali metal group compound or a alkali earth metal system compound 0.1 - 10 parts by weight, metal powder 0.1 - 50 parts by weight, and solvent 100 - 500 parts by weight about hardening organic resin 100 parts by weight. The hardening glass resin is selected among one type from an epoxy group, an acryl group, a urethane group, an alkyd group, a polyester group, and a polyvinyl chloride group. The particle size of glass powder is 0.01~500 μm.
Patent KR-20110013589-A (KR)
Title: Apparatus for controlling plant pot
Inventor: JEONG DA EUN
IPC: A01G9/02
Filed: 2009-08-03
Abstract: PURPOSE: A flowerpot management apparatus is provided to enable a user to detect the loss of water inside the flowerpot, and to notify the user if the water level inside a flowerpot support is higher than the standard. CONSTITUTION: A flowerpot management apparatus comprises the following: a moisture sensing sensor(104) installed on a flowerpot control unit(100) for sensing the moisture inside soil of the flowerpot; an overflow sensing sensor(105) installed on a flowerpot support; a controller(110) outputting a controlling signal when the moisture is incapable of being detected by the moisture sensing sensor; a message generating unit(111) turning on or off a light emitting lamp(107) by the controlling signal; and a setting button.
Patent KR-20110014865-A (KR)
Title: Organic light emitting diode display device
Inventor: PARK EUN JUNG
IPC: H01L51/52
Filed: 2009-08-06
Abstract: PURPOSE: An organic electroluminescent display device is provided to improve color purity and luminous efficiency by selectively applying a semitransparent reflection layer on a maximum of two sub pixels. CONSTITUTION: A buffer layer(105) is located on a substrate(100). A semiconductor layer(110) is located on the buffer layer. A unit pixel(180) comprises a light emitting layer(165R,165G,165B) between a first electrode(150) and a second electrode(170). The unit pixel comprises three sub pixels(190R,190G,190B) which produce a red, a green, and a blue color. A maximum of two sub pixels include a semitransparent reflection layer(151) among the three sub pixels.
Patent KR-20110016655-A (KR)
Title: Savonius rot0r for wind power generation of vertical axis with variable biblade structure
Inventor: SHIN JOONG HO
IPC: F03D11/00
Filed: 2009-08-12
Abstract: PURPOSE: A savonius rotor for wind power generation of vertical shaft with variable biblade structure is provided to improve the efficiency of wind power generation, since big torque is generated through an outer blade. CONSTITUTION: A savonius rotor for wind power generation of vertical shaft with variable biblade structure comprises a vertical shaft(10) and multiple blades(100). The blade comprises an outer blade(110) and an inner blade(120). One end of the outer blade is coupled along the outer surface of a top plate and a bottom plate(30,40) to be rotatable, and the other end moves within a fixed range. One end of the inner blade is coupled with the other end of the outer blade to be rotatable, and the other end moves within a fixed range. One end of the outer and inner blades is coupled with each other to be rotatable by a supporting/retaining unit(200).
Patent KR-20110021333-A (KR)
Title: Combination structure of elevator switch
Inventor: OH BU HYUN
IPC: B66B1/46
Filed: 2009-08-26
Abstract: PURPOSE: A coupling structure of an elevator switch is provided to prevent a tact switch from becoming easily damaged due to strong external force. CONSTITUTION: A coupling structure of an elevator switch comprises a frame(10), a circuit board(20), a guide ring(30), a pressing plate(40), an actuator(50) and a return spring(60). A first protrusion(12) is formed on one side of the inner circumferential surface of the frame. The first protrusion limits the upward movement of the actuator. A second protrusion(32) is formed on one side of the inner circumferential surface of the guide ring. The second protrusion limits the downward movement of the pressing plate. The return spring is composed of a buffer spring(62) and a spring(64). The buffer spring is installed between the pressing plate and the actuator. The spring is installed between the pressing plate and the first protrusion of the frame. The pressing plate and the actuator are coupled by a hook at an interval, and thus the pressure of the actuator, which is associated with the external force of the pressing plate, is absorbed.
Patent KR-20110022877-A (KR)
Title: Method for remotely reading metering-value in a gas meter along with temperature/pressure-corrected metering-value through two-wire line, and apparatus and system for the same
Inventor: LEE BYENG CHUL
IPC: G08C17/00
Filed: 2009-08-28
Abstract: PURPOSE: A method for remotely reading metering-value in a gas meter along with temperature/pressure-corrected metering-value through two-wire line and an apparatus for the same are provided to automatically calculate the metering value of a gas meter and temperature/pressure-corrected metering-value. CONSTITUTION: An apparatus for remotely reading metering-value comprises a measuring pulse generating unit(14), a hot pressure compensating unit(20), a compensation measuring pulse generating unit(22), a pulse signal joint(24), and a combined pulse transmitting unit(26). The measuring pulse generating unit generates measuring pulses when electric signals are provided. The hot pressure compensating unit calculates temperature/pressure-correcting factor. The compensation measuring pulse generating unit calculates temperature/pressure-corrected metering-value. The compensation measuring pulse generating unit generates correction metering pulse. The pulse signal joint synchronizes and couples the metric pulse and the correction metering pulse.
Patent KR-20110024284-A (KR)
Title: Method for manufacturing hot dip plated steel sheet
Inventor: KIM JUNG BONG
IPC: C23C2/02
Filed: 2009-09-01
Abstract: PURPOSE: A manufacturing method of a hot-dip coated steel sheet is provided to make a uniform coated layer and improve coating quality by improving wettability of Fe(Iron) and a plating bath. CONSTITUTION: A manufacturing method of a hot-dip coated steel sheet comprises following steps. A steel sheet(11) comprises one or more special elements that reduce hot-dip coating property. The steel sheet is preheated, heated, kept warm by an indirect heating method. The steel sheet passes through a preheating zone(1) and a warm-treatment zone(2). A Fe composite oxide film is formed on the surface of the steel sheet to a thickness of 0.04~1.00 micron meters. The Fe composite oxide film comprises the special element. The Fe composite oxide film is restored in the heating zone and a concurrent heating zone(5).
Patent KR-20100035106-A (KR)
Title: Manufacturing method for photosensitive film, photosensitive film, photosensitive laminate, method for forming permanent pattern and printed board
Inventor: HAYASHI TOSHIAKI
IPC: G03F7/11
Filed: 2009-09-15
Abstract: PURPOSE: A photosensitive film is provided to prevent in-plane defects such as pinhole due to uniform film thickness and to form highly fine persistent pattern due to excellent adhesion with a substrate for forming a printed wire. CONSTITUTION: A method for manufacturing a photosensitive film comprises: a coating preparation step for preparing a coating solution containing a photosensitive resin composition, wherein the photosensitive resin composition includes a compound introduced with a photosensitive group and an acid group for imparting alkali development, a polymerizable compound, and a photopolymerization initiator; a de-aeration step; a coating step; and a drying step for forming a photosensitive layer on a supporter.
Patent KR-20110029531-A (KR)
Title: Touchscreen panel remove the actual state of newton's ring and manufacturing method thereof
Inventor: SEOK SONG KON
IPC: G06F3/041
Filed: 2009-09-15
Abstract: PURPOSE: A touch screen panel which eliminates Newton rings phenomena and a method for manufacturing the same are provided to prevent Newton rings phenomena without changing the design of the touch screen panel by forming an insulating layer with an insulating resin on the surface of a lower ITO film. CONSTITUTION: The generation of a separated space is prevented by forming an insulating layer(45) to match a surface which corresponds to separated space. The separated space is formed by a lower silver pattern electrode(50) laminated between two-sided adhesive tape layer which is adhered to a top silver pattern electrode(30) and a lower ITO(Indium Tine Oxide) film layer. The insulating layer is formed by a printing method on the surface of a lower ITO which contacts a sliver electrode pattern. The insulating layer is comprised of a compound having insulating characteristics so that an upper and lower silver pattern electrode is not applying an electric current.
Patent KR-20110029744-A (KR)
Inventor: JUNG HYU CHE
IPC: E01C5/00
Filed: 2009-09-16
Abstract: 본 발명은 시각장애인용 점자블록의 제조장치에 관한 것으로서, 특히 인조대리석제 점자블록에 있어서, 돌기층으로 사용되는 원료의 혼합 공정과 혼합되어진 혼합원료에 경화제 첨가 공정 및 분배 공정 되는 단계를 하나의 장치로 일체화하여 재료 절감 및 작업이 용이하고 생산성을 우수하게 한 것이다. 
     일반적으로 점자블록은 인도와 횡단 보도와 지하철 및 계단 등의 시각장애인이 주위를 필요로 하는 장소에 설치되어 보행할 때 발이나 지팡이에 닿는 촉감 등의 감각으로 위치나 방향을 알 수 있도록 하는 것이다. 
     현재 시판되고 있는 시각 장애인 점자블록은 콘크리트제와 페타이어등을 재활용한 고무제 및 플라스틱제 등으로 여러 재질로 제조되고 있는 것으로 본 발명은 인조대리석제 점자블록을 제조하는 제조장치에 관한 것으로, 액상 수지와 고형 충진제와 각종 첨가제를 혼합하는 첫번째 단계를 거쳐 혼합된 혼합원료를 토출하여 수납통에 담는 두번째 단계를 거치고 수납통에 담겨진 혼합원료에 경화제를 투입하는 세번째 단계를 거친 후 네번째 단계로 경화제가 투입된 혼합원료를 잘 섞은 후 마지막 다섯번째 단계로 성형몰드에 혼합원료를 부어 콘크리트를 도포하면서 형성하는 것이다. 
     그러나 이때 상기의 혼합되어진 혼합원료는 자연적으로 경화되는 성질을 가지고 있어 혼합원료를 일정량만큼만 토출하여 사용하도록 되어 있으며 상기 혼합원료에 경화제를 투입할 시 경화속도가 더욱 빠르게 되어 작업속도의 한정으로 인해  제품의 생산성이 떨어지는 낮은 문제가 있는 것이다. 
     또한 여러 공정단계를 사용함으로써 상당한 시간 소요와 재료의 손실이 발생되고 또한 작업이 복잡한 문제가 있는 것이다. 
     따라서 본 발명은 인조대리석제 점자블록 제조에 사용되는 주원료의 혼합공정장치와 혼합된 혼합원료에 경화제를 투입하는 투입장치와 경화제가 투입이 끝난 혼합원료를 성형몰드 내에 일정량씩 분배하는 분배장치를 하나의 제조장치로 일체화하여 상기의 문제를 해결토록 한 것이다 
       
     시각장애인 점자블록, 공정일체화, 혼합, 분배
Patent KR-20110030013-A (KR)
Title: A complex inspection equipment for valve spring
Inventor: YOU HAN DEOG
IPC: G01N3/08
Filed: 2009-09-17
Abstract: PURPOSE: A composite inspecting device of a valve spring is provided to save the weight, shape and mark test time of the valve spring by automatically separating and discharging test-passed valve springs and test-failed valve springs. CONSTITUTION: A composite inspecting device of a valve spring comprises a product transfer plate(11), a valve spring feeding unit(12), a shape test unit(15) and a motor controller. Transfer holes are formed on the product transfer plate at regular intervals. The valve spring feeding unit is installed on the upper part of the product transfer plate. The shape test unit is installed next to a second weight test unit(14). The motor controller is connected to a weight test controller, a plate driving motor(10), a first weight test unit(13), the second weight test unit, and the shape test unit.
Patent KR-20110030928-A (KR)
Title: System and method for monitoring service
Inventor: AN KYUNG MI
IPC: G06Q50/10
Filed: 2009-09-18
Abstract: PURPOSE: A service monitoring system and a method thereof are provided to extract an abuse pattern and to extract a fault distrust list by using various search conditions and user interfaces according to each spam factor. CONSTITUTION: A usage confirmer(103) confirms the operation of a user. A filtering unit(105) filters service data according to the confirmed operation of the user. An extracting unit(108) extracts a black list for leading to the inspection object with reference to database according to the filtering result. The extracting unit extracts the white list except for the inspection object. An inspecting unit(112) inspects service data for the extracted inspection list.
Patent KR-20110033409-A (KR)
Inventor: JANG DONG WON
IPC: E03F5/10
Filed: 2009-09-25
Abstract: 본 발명은 도로에 매설하는 비교적 작은 지름의 하수도 본관의 점검구로 사용되는 합성수지제 오수받이에 관한 것으로, 
     종래의 맨홀은 콘크리트에서 성형되기 때문에 중량이 무겁고, 도로에 매설하는 경우 도로의 통행을 차단하고 소정의 구멍을 굴삭한 후 토사 붕괴를 방지하기 위해서 벽을 박아 설치공사를 실시하고 있지만 도로가 좁은 장소나 굽은 장소에 설치하는 경우 맨홀의 설치가 곤란하고, 공사비용이 많이 들게 되는 문제가 있었던 바, 
     상부면에 파이프 접속구를 형성함과 동시에 하부면에 인버트체 감합부를 마련하고, 하부 측면에 유입구와 유출구를 형성하며, 염화 비닐 수지로 성형한 원통형 오수받이와; 상기 오수받이 본체의 인버트체 감합부에 감합 고착되어 상부면에 상기 유입구로부터 유출구에 연통하는 인버트면을 형성하고 합성수지로 성형한 인버트체로 구성되는 본 발명의 합성수지제 오수받이에 의하면 오수받이 본체와 인버트체와의 조합에 의해 하나의 오수받이 본체로 각종의 오수받이가 형성되며, 특히 인버트체는 목형에서도 형성할 수 있는 간단한 구조로 염가로 제조할 수 있어 경량으로 시공 작업성이 양호하고, 소량 다품종의 제조에 적절하여 대형으로 염가에 얻을 수 있게 되는 등의 효과를 얻을 수 있게 된다. 
       
     오수받이 본체, 파이프 접속구, 인버트체 감합부, 유출구, 유입구, 인버트체, 인버트면, 인버트부
Patent KR-20110036393-A (KR)
Title: Mac address allocation method
Inventor: MOON UNG HAN
IPC: H04W8/26
Filed: 2009-10-01
Abstract: PURPOSE: A MAC address allocation method is provided to assign a reference MAC address to a network device and automatically assign MAC addresses to other network devices. CONSTITUTION: If a network device is mounted(S112), a CPU of a network combo device checks a MAC address of a representative network device(S114,S116). The CPU also checks the kinds and number of residual network devices(S118). The CPU creates MAC addresses for each device by adding a addition value to the representative MAC address(S120). The CPU stores MAC addresses for each device(S122). If the representative network device is replaced, the CPU rechecks the representative MAC addresses.
Patent KR-20110038914-A (KR)
Title: Battery pack and manufacture method thereof
Inventor: LEE SANG JOO
IPC: H01M50/178
Filed: 2009-10-09
Abstract: PURPOSE: A battery pack is provided to minimize the thickness of a protection circuit module according to the connection of an electrode tab and a shell tab at the same surface as the surface where a circuit device of the protection circuit module is formed. CONSTITUTION: A battery pack(100) comprises: a battery cell(110) consisting of an exterior(111) having a terrace(114) and at least one cell tab(112,113) protruding through the terrace; and a protection circuit module(130) consisting of a circuit board(131) located on the terrace, at least one electrode tab(133,134) formed on the circuit board, and at least one circuit device(135) formed on the circuit board.
Patent KR-20110039612-A (KR)
Title: 손 소독 장치
Inventor: IN SOON IL
IPC: A61L2/14
Filed: 2009-10-12
Abstract: 본 발명은 손 소독 장치에 관한 것으로, 특히 좌우로 각각 분리되는 한 쌍의 손 삽입구와 내부 공간을 가지는 하우징; 상기 하우징의 내부공간에 구비되는 i)오존 발생부 또는 수산기 발생부와 ii)자외선 발생부로 이루어진 소독부; 상기 손 삽입구에 결합하여 상기 손 삽입구를 일부 또는 전부 막으면서 삽입부를 가져 손 삽입이 가능하게 하는 손 삽입구 밀폐부; 상기 손 삽입구로의 손 삽입 여부를 감지하는 센서부; 및, 상기 센서부의 손 삽입 감지에 따라 상기 소독부의 가동을 제어하는 제어부를 포함하는 것을 특징으로 하는 손 소독 장치에 관한 것이다. 
     이를 통하여 인플루엔자, 바이러스 또는 세균 등에 의한 감기, 독감 등의 질별 감염의 주 원인이 되는 손의 오염을 물 없이도, 신속하고 정확하고 간단하게 살균 및 소독할 수 있어서, 이들로 인한 감염을 막을 수 있고 개인위생을 보다 쉽고 안전하게 유지할 수 있다. 
       
     손, 소독, 자외선
Patent KR-20110040132-A (KR)
Title: Emergency reporting system for collector device of electric vehicle
Inventor: CHO DONG HO
IPC: B60L11/18
Filed: 2009-10-13
Abstract: PURPOSE: An urgent situation alarm system of a current collector for an electric vehicle is provided to prevent an accident by enabling a user to check the abnormality of the current collector through a monitor in real time. CONSTITUTION: A pick-up unit(110) receives power from a feeder with a magnetic inductive method. A capacitor bank unit maximally controls electric capacity by resonating with the pickup unit. A rectifier(130) rectifies AC into DC. A regulator(140) converts the DC from the rectifier into the DC suitable for a system. A controller(150) guides the information of the regulator.
Patent KR-20110041156-A (KR)
Title: Can having a rotary-type cap
Inventor: HWANG DONG HYUN
IPC: B65D25/40
Filed: 2009-10-15
Abstract: PURPOSE: A beverage can with a rotary lid is provide is provided to enable a consumer to selectively open the cap by including a cut-out type beverage outlet and a rotary lid type beverage outlet. CONSTITUTION: A beverage can with a rotary lid includes a case(10), a cut-out type beverage outlet(20), and a rotary lid type beverage outlet(30). The case stores a beverage. The cut-out type beverage outlet formed by a cut-out line on the case. The cut-out type beverage outlet is opened by the pressing of an opener. The rotary lid type beverage outlet forms a separate hole on the case.
Patent KR-20110041170-A (KR)
Title: Apparatus for generating electric power by biomass
Inventor: KIM MI SOON
IPC: F01K23/10
Filed: 2009-10-15
Abstract: PURPOSE: An electric power generation apparatus using biomass is provided to improve thermal efficiency by heat exchange which is generated by an endoergic water jacket and a residual heat water jacket. CONSTITUTION: An electric power generation apparatus using biomass comprises a raw material supply unit, a furnace(7), a jetting pipe(8), a heat exchanger, a power generating unit, and an exhaust pipe(34). The raw material supply unit transfers the biomass. The biomass transferred from the raw material supply unit is burnt. The jetting pipe dies of resentment the water inside furnace. The heat exchanger is placed on the top of a furnace. A thermal medium circulates in the heat exchanger and exchanges heat with the inside of the furnace. The power generating unit receives heated thermal medium and generates electricity. The exhaust pipe connects the furnace and the outside, thereby discharging combustion gas.
Patent KR-20100067037-A (KR)
Title: Compounds containing crosslinkable moieties, prepolymers, compositions and polymer sheets obtained therefrom, and waveguides for optical interconnection
Inventor: PARK SEUNG KOO
IPC: G02B6/02
Filed: 2009-10-22
Abstract: PURPOSE: A compound containing crosslinkable moieties is provided to be used as an optical waveguide due to low light loss and to be used for manufacturing a waveguide thick film without a supporter due to excellent mechanical properties. CONSTITUTION: A compound has a chemical formula 1. The chemical formula 1 is Ar-H. In the chemical formula 1, Ar includes a terminal crosslinkable group, one group which is selected from -O-, -S-, -COO-, -CO-, -COS-, -SO_2-, and -NH-, and one or two repeating units which are selected from a chemical formula(1-a), a chemical formula(1-b), a chemical formula(1-c), and a chemical formula(1-d). In the repeating units, A is carbon or nitrogen and X is hydrogen or halogen.
Patent KR-20110044379-A (KR)
Title: Ionizer
Inventor: LEE EUNG SUEK
IPC: H01T19/04
Filed: 2009-10-23
Abstract: PURPOSE: An ionizer is provided to prevent the contamination due to a foreign material by forming an ion generating device into a tube shape. CONSTITUTION: An ionizer(1000) comprises an ion generating device(100) and a power supply unit(200). The ion generating device comprises a tube shape dielectric(110), a discharge electrode(120), and a grounded induction electrode(130). The discharge electrode is formed into a mesh structure. The power supply unit applies voltage to the discharge electrode. The power supply unit includes a compressor(300) supplying air pressure. The dielectric drives the ionizer through a dielectric breakdown by the accumulation of electrons.
Patent KR-20110045122-A (KR)
Title: side mirror for vehicle
IPC: B60R1/06
Filed: 2009-10-26
Abstract: PURPOSE: A side view mirror for a vehicle is provided to improve the exterior of a vehicle by locating the coupling structure of the side view mirror at the inner side of a rear case. CONSTITUTION: A side view mirror for a vehicle comprises a rear case(1), a coupling ball(10), a ball receiving globe(30), and a leaf spring(40). The rear case is coupled to the side view mirror and has a ball support unit and a perforated part(20). The perforated part is formed in the outer side of the ball support unit. The coupling unit of the coupling ball is connected to a mounting arm of a vehicle. The ball receiving globe has a ball receiving space and multiple wings(32). The curved parts of the wings cover the surface of the coupling ball. The leaf spring is installed inside the rear case to be adhered to the bottom end of the ball receiving globe and pushes the ball receiving globe so that the wings of the ball receiving globe can be adhered to the ball support unit of the rear case.