baber/WOPTO huggingface dataset:
Patent KR-20090011400-A (KR)
Title: Built-in self test device and phase-locked loops including the same, built-in self test scheme and storage medium storing the same
Inventor: KANG SUNG HO
IPC: H03L7/00
Filed: 2007-07-26
Abstract: A self test device built in a phase-locked loop, the package locked loop including the same, a testing method thereof, and a storage medium storing the same are provided to test an internal defect with small hardware overhead by using only digital signal inside the phase-locked loop by calculating a hamming distance. A built-in self test device(100) of a phase locked loop includes a first shift detection unit(110a,110b,110c), and a second shift detection unit(120a,120b,120c) and a shift frequency calculation unit(150). The first shift detection unit receives an original output signal of a voltage controlled oscillator of the phase-locked loop and the division signals dividing the frequency of the original output signal from a frequency divider and outputs the level shift between the signals in a digital type. The second shift detection unit. The second shift detection unit outputs the level shift in the digital type by comparing the level shift outputted from the first shift detection unit and the level shift previously outputted from the first shift detection unit. The shift calculation unit calculates the shift frequency through the output value of the second shift detection unit and determines the defect of the phase-locked loop.
Patent KR-20080011106-A (KR)
Title: Multilayered printed wiring board and method for manufacturing the same
Inventor: SAHARA TAKAHIRO
IPC: H05K1/18
Filed: 2007-07-27
Abstract: A multilayered printed wiring board and a method for manufacturing the same are provided to make portable devices smaller and thinner without selecting mounted components. A multilayered printed wiring board(100) includes a cavity(1), regions(5) including electronic components(4), eight wiring layers(21-28), insulation layers(11-13), and interlayer connecting conductors(31-37). The cavity has an opening portion for mounting the desired electronic components. The wiring layers have desired wiring patterns. Two regions including the electronic components are formed and each of the electronic components is laid on each of the regions. Top portions of the electronic components are coated with resin.
Patent KR-20090013367-A (KR)
Title: System and method for recommending a keyword according to each category
Inventor: SEOK TAI MI
IPC: G06F17/30
Filed: 2007-08-01
Abstract: A category keyword recommend system and a method thereof are provided to offer convenience for an advertiser in purchasing keyword for advertisement by automatically providing keyword corresponding to a category which advertiser wants. A keyword extractor(110) extracts keyword from website documents. A category keyword database stores the extracted keyword classified by category(120). An advertiser keyword inquiry information collecting part collects the information about the keyword which advertiser refers(130). A keyword purchasing information collecting part(140) collects the information about the keyword which advertiser purchases. A searcher keyword inquiry information collecting part collects the information about the keyword which searcher inquires(150). A grade computation part(160) computes score based on the information about the keyword. A grade computation database(170) stores the calculated score classified by category. A category keyword(180) offer part provides keyword for advertiser according to a rank.
Patent KR-20080013779-A (KR)
Title: Reflux condenser
Inventor: THOMAS HECHT
IPC: F28F9/22
Filed: 2007-08-07
Abstract: A reflux condenser is provided to form reflux passages having a header with a phase-separating device to divide vapor and liquid under the reflux passages effectively to improve the efficiency of heat and material exchange operation. A heat exchanger block(1) has reflux passages and refrigerant passages. A pressure container(2) surrounds the heat exchanger block at an upper part in a horizontal direction. Gas passage opening parts are installed to introduce vapor into a lower area of the reflux passages. An exhaust pipe(19) guides a liquid the lower area. A horizontal header(29) and a gas removing pipe(30) exhaust vapor out of an upper area of the reflux passages. The reflux passages are arranged at a lower part of the heat exchanger block, communicating with a header having a phase-separating device at a lower end.
Patent KR-20080013795-A (KR)
Title: Railroad line
Inventor: HEIM MARKUS
IPC: E01B9/62
Filed: 2007-08-07
Abstract: A railroad line is provided to reduce low frequency oscillations when a train passes through a bridge or a viaduct and to be formed with suitable expenses. A railroad line comprises an upper structure(1) having a rail(2) and a track bed(3), a lower structure(5) having many piers(6) and a bridge superstructure(7) supported by the piers, and an elastic layer(8) placed between the track bed of the upper structure and the lower structure to install the rail on the lower structure elastically, wherein bedding coefficient of the elastic layer in a first zone(9) of the upper structure extended to the upper part of each pier is smaller than that in a second zone(10) of the upper structure extended to an area between the piers.
Patent KR-20090015750-A (KR)
Inventor: CHOI WON YOUNG
IPC: G06K17/00
Filed: 2007-08-09
Abstract: A system for recognizing position using RFID and a safety apparatus of machine tool using the same are provided to be used in an industrial safety education by securing reproducibility of industrial accident. A transceiver(210) outputs a reference signal with an RFID tag(220). The RFID tag receives the reference signal outputted from the transceiver, and outputs a tag signal corresponding to identification information stored in the RFID tag. The tag signal outputted from the RFID tag is inputted in a plurality of receivers(231, 232, 233, 234). The tag signal is transmitted from a communication part(240) to a control part(250). The communication part connects the control part to a plurality of receivers. The control part obtains three dimensional position information of the RFID tag.
Patent KR-20090016970-A (KR)
Title: 비디오 부호화 및 복호화 방법과 그 장치
Inventor: PARK SEUNG WOOK
IPC: H04N19/51
Filed: 2007-08-13
Abstract: 본 발명은 비디오 부호화 및 복호화 방법과 그 장치에 관한 것으로, 비디오 데이터의 줌인/줌아웃 시, 줌인/줌아웃 정보를 사용하여 움직임 보상을 수행한다. 이에 의해, 줌인/줌아웃 시, 비디오 데이터에 대한 효율적인 부호화 및 복호화가 가능하다.  
       
     줌인, 줌아웃, 움직임 보상
Patent KR-20090020241-A (KR)
Inventor: JUN IL CHAN
IPC: A45D34/00
Filed: 2007-08-23
Abstract: 본 발명은 화장품 용기 뚜껑 및 이를 구비한 화장품 용기에 관한 것으로서, 화장품 용기는 화장품 내용물이 담겨지도록 기설정된 내부 공간이 형성되는 용기 본체, 및 용기 본체의 개구부에 체결되어 화장품 내용물의 외부 유출을 방지하는 용기 뚜껑을 포함한다.  화장품 용기 뚜껑은 하단부에서 제1 방향으로 길게 뻗어 연장되고 제1 방향과 교차하는 제2 방향으로 관통 구멍이 형성되는 뚜껑 본체, 및 관통 구멍이 끼워져 뚜껑 본체와 교차 결합되며 일정 길이 이상으로 길게 뻗어 연장되는 장식 부재를 포함한다.  이와 같이 본 발명은 종래기술과 다른 차별화된 디자인 형상으로 미감을 증가시키면서도 소비자가 보다 편리하게 사용하도록 제작된다. 
       
     화장품, 용기, 뚜껑, 비녀, 곡선, 교차, 장식
Patent KR-20080076677-A (KR)
Title: Hydrogen generating apparatus and fuel cell power generation system
Inventor: GIL JAE HYOUNG
IPC: H01M8/04
Filed: 2007-08-23
Abstract: A hydrogen generating apparatus is provided to generate pure hydrogen at room temperature by using an electrochemical reaction, control the generating amount of hydrogen even without a separate balance of plant while having a system with a simple structure, and obtain an inexpensive environmentally friendly hydrogen generating apparatus, and a fuel cell power generation system comprising the same is provided. A hydrogen generating apparatus(200) comprises: an electrolyzer(210) containing an aqueous electrolyte solution(215); a first electrode(220) which is positioned within the electrolyzer and immersed into the aqueous electrolyte solution to generate electrons; a second electrode(230) which is positioned within the electrolyzer and immersed into the aqueous electrolyte solution to generate hydrogen by receiving the electrons; and a control part(240) positioned between the first and second electrodes to control the amount of electrons flowing from the first electrode to the second electrode for a predetermined time. The generated electrons move from the first electrode to the second electrode through a first electric wire(225), the control part, and a second electric wire(235).
Patent KR-20090024874-A (KR)
Title: Roll crown forming method of twin roll type strip caster
Inventor: PARK CHEOL MIN
IPC: B22D11/045
Filed: 2007-09-05
Abstract: A roll crown forming method of a twin roll type strip caster is provided to cast a thin plate, which is hardened uniformly in the width direction, by controlling the roll crown. A roll crown forming method of a twin roll type strip caster comprises a first step of maintaining a crown(20) of thin plate below 90mum about 50mm spot from the edge of the thin plate in consideration of the trimming amount, and a second step of maintaining the ratio between the crown amount to 50mm spot from the edge of a cast roll(3) and the crown amount to the edge 50mm spot from the central part of the cast roll at 1:1.2. In order to regulate the crown amount of the thin plate in the second step, the cast roll is cooled with different amount of cooling water according to the thickness.
Patent KR-20090026865-A (KR)
Title: Method of bombproof helmet
Inventor: KIM YOUNG KEUN
IPC: F41H1/04
Filed: 2007-09-11
Abstract: A manufacturing method of a bulletproofing helmet is provided to immediately control the number of prepreg laminated according to the shelter capabilities. A manufacturing method of a bulletproofing helmet comprise: a step of producing to the prepreg the para aramid fiber; a step of inserting the prepreg of the size which is small in the center portion after laminating a plurality of prepreg(1) of the various size having a cut-out part(2) in edge; and a step of separating the mold after cooling for 5~15 minutes in 40~60°C.
Patent KR-20090027798-A (KR)
Inventor: SONG IN KYU
IPC: E03F5/06
Filed: 2007-09-13
Abstract: A grating for draining is provided to remove the garbage remaining on the grating as the pan-shaped support and vertical support turn. A grating for draining comprises a pan-like support(2) which rotates in the inside of the frame(1) and consists of a plurality of blades(2a), a vertical support(3) which moves from side to side in the inside of the frame body, and a rotary shafts(4,5) provided to the pan-like support and vertical support. The pan-type support stand and vertical support are installed by turns.
Patent KR-20080027726-A (KR)
Title: Transfer system
Inventor: KUMAZAWA TSUYOSHI
IPC: B65G57/00
Filed: 2007-09-18
Abstract: A transfer system is provided to reduce transferring time and a space of a product stand side by reducing a stroke to lift an arm at low speed. A transfer system includes a shelf receiving unit(30) and a slide fork(16). A pair of linear marks(31,32) are formed up and down in parallel with a loading surface of the shelf receiving unit. The slide fork is composed of a base unit, a middle unit(34), and a top unit(35). The base unit of the slide fork is fixed to a lift(2). A pair of image sensors(36,37) are installed at both ends of the top unit. A titling apparatus tilts the lift according to forward and backward movements of the slide fork to correct a gradient of the top unit of the slide fork into zero.
Patent KR-20090030407-A (KR)
Title: Semiconductor device with electrostatic discharge protection circuit and method of testing the same
Inventor: CHOI YOUNG DON
IPC: H01L27/04
Filed: 2007-09-20
Abstract: A semiconductor device and a method for testing the same are provided to reduce a size of a chip by reducing the number of test pad and the number of electrostatic discharge protection circuit. A test circuit(140) outputs a test control signal and a selection control signal in response to a test enable signal. An inner circuit(120) outputs a plurality of test signals by performing a fixed operation in response to the test control signal. A selection signal generating part(150) outputs a selection signal in response to the selection control signal. At least one multiplexer(160) receives a plurality of test signals, selects one among a plurality of test signals in response to the selection signal, and outputs the selection test signal. At least one test pad(TP) corresponds to at least one multiplexer, and receives the selection test signal. At least one electrostatic discharge protection circuit(110) is positioned between the multiplexer and the test pad, and discharges static electricity supplied through the test pad.
Patent KR-20090032199-A (KR)
Title: Food package with excellent oxygen-absorption
Inventor: KOO SUN MO
IPC: B65D81/24
Filed: 2007-09-27
Abstract: A food packing container is provided, in which chemical oxidation of content by the oxygen is prevented and which lengthens the storage life of food. A food packing container is made of a multilayer sheet(10). The multilayer sheet is formed by stacking an internal layer(11), an oxygen absorbing layer(12), a first adhesive layer(13), an oxygen barrier(14), a second adhesive layer(15), an outer layer(16) successively. The thickness of the internal layer is 5~100 micrometers. The oxygen absorbing layer comprises oxygen absorbent resin 10~80wt% and matrix resin selected from polypropylene, polyethylene(PE), polyethylene terephthalate(PET), ethylene vinyl alcohol(EVOH), polyamide, or the polyamide copolymer.
Patent KR-20090032339-A (KR)
Title: Method and apparatus for service to inquire after old people's health
Inventor: JANG HYUN CHUL
IPC: G16H50/30
Filed: 2007-09-27
Abstract: A method and an apparatus for providing service to inquire after the health condition of an old person are provided to collect the daily life information of an old person and supply the information to a guardian or a public organization so that the guardian or the organization may know the time that the old person needs assistance. Plural sensors(111,112,11n) generates and transmits a sensing signal for informing the daily life or health state of an old person, and a signal processor analyzes the sensing signal and generates daily life information of the old person. An emergency processor(124) informs a guardian or a public organization of the emergency situation of the old person and generates emergency situation alarming information if the daily life information is related to emergency situation. An abnormal signal processor(125) analyzes the daily life information for an abnormal sensing interval to generates abnormal situation alarming information. A health condition inquiry processor(126) generates inquiry information and provides a monitoring sever(330) with the inquiry information.
Patent KR-20090034483-A (KR)
Title: Input device of portable mobile communication device
Inventor: LIM JAE HYUN
IPC: H04B1/40
Filed: 2007-10-04
Abstract: An input device of a portable mobile communication device is provided to supply various input methods to a user by recognizing a touch operation and a pressing operation. An input device of a portable mobile communication device comprises the first sensing layer(10) and the second sensing layer(12). The first sensing layer comprises a button array(11) consisting of a plurality of buttons. The second sensing layer is arranged on the first sensing layer. And the second sensing layer senses a contact operation. When a touch operation is performed on the second sensing layer from a user, a touch sensor is operated at an area where an object for input and the second sensing layer are engaged. When a pressing operation is performed, a button of the first sensing layer corresponding to the operation is operated.
Patent KR-20090037552-A (KR)
Title: Preparation process for preventing deformation of jelly-roll type electrode assembly
Inventor: YUN YOUNG KWANG
IPC: H01M50/119
Filed: 2007-10-12
Abstract: A preparation process for preventing deformation of a jelly-roll type electrode assembly is provided to prevent the separation of a composite separator membrane in core removal by controlling the interfacial friction power between the core and the composite separator membrane to be low. A process for manufacturing a jelly-roll type electrode assembly having a laminate structure of positive electrode/separator/negative electrode comprises the steps of: (a) preparing a composite separator membrane coated with an organic-inorganic composite layer containing inorganic materials and an organic polymer as a binder, on both surfaces of a porous substrate; and (b) inserting an end portion of one side of a sheet laminate consisting of the composite separator membrane, positive electrode sheet and negative electrode sheet into a mandrel, after winding, and removing the mandrel.
Patent KR-20070106673-A (KR)
Title: Soccer ball
Inventor: CHOI MI YEON
IPC: A63B43/00
Filed: 2007-10-16
Abstract: A soccer ball is provided to enable a user to decide correctly whether a ball is in or out during a soccer game, and to give realistic feelings of a soccer game to TV viewers by mounting a microphone and a sensor inside the ball. A soccer ball includes an inner cover(110), an outer cover(120), a rubber drum(140) made of a rubber, a microphone(150), a sensor(160), and a small sized storage battery(170). The spring is radially disposed in the inner cover. The receiving drum is supported by the spring. The microphone is installed inside the receiving drum to make radio communication with an external receiving antenna. The sensor is installed on the center of the microphone to respond to a sensor sensing line installed on an end line of a soccer field and goal posts. The storage battery is installed inside the receiving drum.
Patent KR-20090041479-A (KR)
Title: The retaining wall-block
Inventor: JANG BUM KI
IPC: E02D29/02
Filed: 2007-10-24
Abstract: A heel block structure of retaining wall is provided to attain structural stability and excellent application property since the retaining wall block structure is assembled at a construction site directly. A heel block structure(100) of retaining wall comprises a retaining wall block(110), a T-shaped block(120) uniting between the insertion groove of the retaining wall block and insertion hole of the adjacent it puts retaining wall block and forms the heel block body, a plurality of fixing blocks(130) which unites between the T-shaped block and adjacent T-shaped block and fixes, and a rubble(140) filled with the rear portion of the retaining wall block and adjacent positioned two T-type blocks and the internal space formed owing to the fixing block.
Patent KR-20090044526-A (KR)
Inventor: HEO JUNG GUN
IPC: H01L21/027
Filed: 2007-10-31
Abstract: 본 발명은 반도체 소자의 형성 방법에 관한 것으로, 반도체 미세 패턴 공정에 사용 가능한 노광 장비의 개구율(Numerrical Aperture, NA)의 증가 없이 감광막 패턴 상부에 촉매 CVD(Catalytic Chamical Vapor Deposition) 공정을 적용하여 우수한 스텝 커버리지(Step Coverage) 특성을 가진 막을 형성하여 콘택 홀(Contact Hole) 사이즈를 줄이고, 고 종횡비(High Aspect Ratio) 구현 가능한 반도체 소자 형성 방법에 관한 것이다.
Patent KR-20090045625-A (KR)
Inventor: PARK CHANG WON
IPC: C08F2/22
Filed: 2007-11-02
Abstract: 본 발명은 질소량 조절을 통한 단분산 입자의 제조 방법에 관한 것으로, 평균입경이 0.1~1.0㎛인 비닐계 1차 시드 입자, 비닐계 단량체, 개시제, 분산 안정제 및 용매를 포함하는 용액을 온도 50 내지 90 ℃에서 10cc/분 내지 1000cc/분으로 정량 투입되는 질소분위기 하에서 중합하여 비닐계 2차 시드 입자를 제조하는 단계를 포함하는 단분산 입자 및 그의 제조방법을 제공한다. 
     본 발명은 입경표준편차가 적어 균일하게 고른 형태를 가지는 단분산 입자를 제공하는 효과가 있다. 
       
     단분산 입자, 질소, 분산중합
Patent KR-20090046195-A (KR)
Inventor: KIM HYUN SOON
IPC: C12N15/09
Filed: 2007-11-05
Abstract: 본 발명은 스트레스 내성 증진 및 감자의 괴경 형성이 지연된 고추  CaPF1     형질전환 감자 식물체 및 그 식물체의 제조방법에 관한 것으로, 더욱 상세하게는 고추 유래의  CaPF1  유전자를 포함하는 재조합 벡터를 형질전환하여 제조된 형질전환 감자 식물체; 고추 유래의  CaPF1  유전자를 포함하는 재조합 벡터를 형질전환하여 감자의 스트레스 내성을 증가시키거나 감자 괴경 형성을 지연시키는 방법; 상기의 방법에 의해 제조된 스트레스 내성이 증가되거나 괴경 형성이 지연된 형질전환 감자 식물체; 및 상기의 형질전환 감자 식물체의 종자에 관한 것이다. 
       
            CaPF1, 스트레스, 내성, 괴경, 지연, 형질전환, 감자
Patent KR-20090047841-A (KR)
Inventor: HUR BYUNG KI
IPC: H01M8/04
Filed: 2007-11-08
Abstract: 본 발명은 경제적인 비용으로 가스켓의 내구성능 저하원인을 파악 가능하고, 가스켓의 재료별 및 형상별 요구되는 적정 스택 체결압을 예측할 수 있는 연료전지 검사장치 및 방법에 관한 것으로서, 양극 및 음극을 구비하여서 화학에너지를 전기에너지로 변환시키는 전지 단위체; 상기 전지 단위체와 결합하여 단위전지를 이루는 가스켓; 상기 단위전지를 중심으로 서로 반대 방향에 배치되는 제1 엔드플레이트 및 제2 엔드플레이트; 상기 제1, 2 엔드플레이트 중 적어도 하나를 이동시켜서, 상기 제1, 2 엔드플레이트가 상기 단위전지를 가압하거나, 상기 단위전지와 분리되도록 하는 플레이트 구동부; 상기 제1, 2 엔드플레이트가 상기 가스켓에 가하는 압력양을 측정하는 로드셀; 및 상기 단위전지 내의 압력 변화를 측정하는 압력측정부;를 구비하는 것을 특징으로 한다. 
     
     연료전지, 테스트, 가스켓
Patent KR-20090049364-A (KR)
Inventor: YANG SEUNG JAE
IPC: C09K13/08
Filed: 2007-11-13
Abstract: 본 발명은 조성물 총 중량에 대하여, 0.1~7 중량%의 질산(HNO 3 ), 황산(H 2 SO 4 ) 또는 이들의 혼합물; 0.5~20 중량%의 (NH 4 ) 2 S 2 O 8 ; 0.01~1 중량%의 함불소 화합물; 0.01~1 중량%의 헤테로사이클릭 아민 화합물; 및 71~99.38 중량%의 물을 포함하는 것을 특징으로 하는 식각액 조성물 및 이를 이용한 금속 패턴의 형성 방법을 제공한다. 
       
     구리, 몰리브데늄, 식각액
Patent KR-20090049770-A (KR)
Inventor: KIM YOUNG HOON
IPC: H01L21/336
Filed: 2007-11-14
Abstract: 본 발명은 리세스 채널 구조를 갖는 듀얼 게이트의 형성시 리세스된 반도체 기판 상에 고농도로 도핑된 막을 형성할 수 있는 반도체 소자의 듀얼 게이트 및 그 형성방법을 개시한다. 개시된 본 발명에 따른 반도체 소자의 듀얼 게이트는, 게이트 형성 영역이 리세스된 셀 지역과 피모스 및 엔모스 형성 영역을 포함하는 페리 지역으로 구획된 반도체 기판; 상기 셀 지역과 페리 지역의 피모스 형성 영역 상에 형성된 제1도전형 SiGe막과 상기 페리 지역의 엔모스 형성 영역 상에 형성된 제2도전형 SiGe막; 상기 제1도전형 SiGe막 상에 형성된 제1도전형 폴리실리콘막과 상기 제2도전형 SiGe막 상에 형성된 제2도전형 폴리실리콘막; 및 상기 제1 및 제2도전형 폴리실리콘막 상에 각각 적층된 금속계막과 하드마스크막;을 포함한다.
Patent KR-20090053308-A (KR)
Inventor: OH SE WOOK
IPC: A23N12/02
Filed: 2007-11-23
Abstract: 본 발명은 새싹용 씨앗의 세척 장치에 관한 것으로서, 씨앗 및 세척수를 담도록 내부 수용공간을 가지는 용기, 용기의 바닥에 설치되어 씨앗의 세척이 이루어지도록 초음파를 발진시키는 초음파 발생기, 용기의 일측 통공을 통해 용기 내부의 세척수를 대류시켜 씨앗의 세척이 이루어지도록 공기를 공급하는 공기 분사기, 및 용기를 덮는 덮개를 관통하며 용기 내부에서 씨앗 및 세척수를 교반시키도록 회전 가능하게 설치되는 교반기를 포함하도록 구성되어, 공기 분사기를 이용해 세척수를 대류시키고, 초음파 발생기를 이용해 용기 내부에 초음파를 발진시킴과 아울러 교반기의 임펠러로 씨앗과 세척수를 교반시켜 씨앗 표면의 존재하는 미생물을 효과적으로 제거할 수 있도록 한다.  
       
     새싹, 씨앗, 미생물, 세척, 공기 분사기, 초음파 발생기, 교반기
Patent KR-20090054854-A (KR)
Title: A frame for a sign board
Inventor: AN DAE BYEOG
IPC: G09F15/00
Filed: 2007-11-27
Abstract: A frame for a signboard is provided to prevent a flexible sheet from being damaged due to a cover by forming a curvature part in a down direction of a lower hitching protrusion of the cover. A hitching piece(11) is formed in one side of a frame(10). A hitching fixing unit(30) fixes a flexible sheet(5) formed in one side of the frame with the tensile state. The hitching fixing unit is formed to move inside the hitching piece of the frame. An elastic member(50) perpendicularly moves the hitching fixing unit. The elastic member is positioned inside the hitching piece and in the lower part of the hitching fixing unit. The hitching fixing unit perpendicularly moves by the elastic force of the elastic member. A cover(70) is separably fixed to the hitching piece of the frame and the hitching fixing unit. An upper hitching protrusion(71) and a lower hitching protrusion(73) are formed in the upper and lower parts of the cover.
Patent KR-20090057724-A (KR)
Title: Wheel axis of vehicle
Inventor: SONG MIN SOO
IPC: B60B35/18
Filed: 2007-12-03
Abstract: A wheel shaft of a vehicle is provided to replace a hub bearing by undoing a bolt without damage of a disc because the disc and the hub bearing are coupled by the bolt. A wheel shaft of a vehicle comprises a disc(10) which is fixed to the car body, a hub bearing(20) which is attached in the disc, and a coupling member which couples the disc with the hub bearing. A contact surface in which the disc and the hub bearing are joined is a tapered surface(15). The coupling member comprises a bolt(30) fixed to the hub bearing through the disc.