baber/WOPTO huggingface dataset:
Patent KR-20010083764-A (KR)
Title: a braking system for a vehicle and a braking valve for use in the same
Inventor: SON YOUNG SOO
IPC: B60T15/00
Filed: 2000-02-21
Abstract: PURPOSE: A brake valve using as a brake system for a vehicle is provided to prevent the vehicle from travelling backward by weight of the vehicle in travelling a slant after stopping. CONSTITUTION: A brake valve(200) comprises a non-magnetic cylinder shaped shaft(212); a base unit(214) fixing an end of the cylinder shaped shaft; a coil(216) sound on an outer circumference of the shaft; a through hole corresponding to an open unit; a cover(218) installed on the base unit; a coil assemblage(210) generating eletromagnetism; a non-magnetic metal body(222) forming an oil inlet hole and a screw; a connector(224) combined to a brake shoe by a hydraulic pipe to form an oil discharging hole; a holder(226) supplying oil passage by being attached to the oil inlet hole; a rubber thread(228) preventing counterflow of the oil by being inserted to the holder; an opening member(230) opening the oil passage by being arranged between the body and the oil discharging hole; and a coil spring(240) supporting the opening member by being mounted between the holder and the opening member.
Patent KR-20010090195-A (KR)
Title: Inserting Apparatus for Cable Arrangement
Inventor: BYUN MOO WON
IPC: H02G1/06
Filed: 2000-03-23
Abstract: PURPOSE: An insertion apparatus for cable wiring is provided to achieve an improved construction efficiency by allowing the cable to be inserted into the electrical raceway in an easy manner. CONSTITUTION: An insertion apparatus(100) comprises support frames(10) of equal shape arranged to face each other with a predetermined space between support frames; a pair of rollers(20) arranged up and down between support frame in such a manner as to be rotatable, and which have guide slots(20a) formed along the outer periphery of each roller so as to allow a cable to contact the guide slots; and a driving unit(30) connected to an end of one of rollers so as to rotate the roller. Each of support frames includes a support member(11) installed at the bottom of the support frame; vertical members(12,13) fixed upright at front and rear portions of the support member; and a fixing member(14) installed in a horizontal direction at the top of vertical members. Support frames are interconnected by a pair of support rods(15) which are fixed between support members and fixing members of support frames.
Patent KR-20000036817-A (KR)
Inventor: JUNG SUN YOUP
Filed: 2000-03-24
Abstract: PURPOSE: An advertising method using an internet card is provided to put in an internet card which now comes into wide use, a mail receiver's rejection symptom against the advertising email will decrease. CONSTITUTION: If a user joins as a member, then an email account is given to the user, so the member can send and receive a mail from one space conveniently. Whenever the member sends an internet card, an advertising is included in specific space of the internet card, and sent to the mail's destination. The member gets cyber money in proportion to the advertising frequency. If the saved cyber money is reached to a regular amount, then a free gift corresponding to the cyber money is given to the user. SO, the member increases, and the effectiveness of the advertising is maximized.
Patent KR-20000049495-A (KR)
Inventor: KWON HEE MOON
IPC: C04B14/00
Filed: 2000-03-31
Abstract: PURPOSE: A coating material for spraying the entire surface of concrete is provided which improves the flatness of a concrete surface and has excellent adhesiveness to a concrete surface and cracking resistance. CONSTITUTION: A coating material comprises 40 to 60% by weight of cement, 30 to 50% by weight of fine aggregate passing through the 0.6 mm sieve opening, 4 to 10% by weight of anhydrous gypsum or calcium carbonate powder, 4 to 5% by weight of an acrylic-, vinylchloride-, ethylene vinylchloride- or synthetic rubber-based reemulsification type powdered resin, 0.2 to 0.3% by weight of a thickener, 0.1 to 0.2% by weight of a dispersing agent, 0.1 to 0.2% by weight of a deforming agent, and 0.2 to 0.3% by weight of a fibrous admixture. The spaying method of the material improves the adhesiveness of a finishing material to a concrete surface and resolves various problems generated from convention methods that use by preparing at a job site such that it stabilizes quality and reduces construction expenses.
Patent KR-20010100267-A (KR)
Inventor: BAE YONG KWAN
Filed: 2000-04-04
Abstract: 사용자가 기입한 회원정보에 따라 일정한 라이프 패턴 테이블을 생성하고, 이러한 라이프 패턴 테이블에 따라 자동으로 데이터베이스화된 정보를 사용자에게 제공한다. 
     또한, 자동으로 제공해주는 라이프 패턴 테이블뿐만 아니라 옵션으로 제공하는 정보를 선택하여 개인 홈페이지에 추가적으로 구성한다.  이에 따라 구성된 개인 홈페이지의 정보를 토대로 여러 가지 맞춤식 정보를 제공할 수 있게 되는데, 우선 웹상에서 개인의 취향에 알맞은 정보들로만 전용 웹진을 구성하여 자기취향에 맞는 정보만을 제공받을 수 있는 메일진을 들 수 있다. 또한, 개인 웹페이지의 정보에 의하여 웹상에서 기본적으로 제공하는 콘텐츠 이외에도 개인이 콘텐츠를 작성하여 기본 콘텐츠와 개인 콘텐츠를 조합하여 개인용 매거진을 구성한다. 
     마지막으로 제공받을 수 있는 정보는 개인 홈페이지의 정보를 바탕으로 개인의 연령층에 따른 상품정보를 웹페이지 또는 이메일을 통하여 주기적으로 제공받는다.
Patent KR-20000037301-A (KR)
Inventor: JUNG BYUNG HEE
IPC: G06F17/40
Filed: 2000-04-12
Abstract: PURPOSE: A data management system over the internet is provided to enable a user to store and modify data in an internet server so that it can make easier and more effective the management of a client computer data. CONSTITUTION: A data management system comprises an internet server(2), and a client computer(6) accessible to the internet server(2) over the internet and an application(4) which a user uses for a specific purpose. The application(4) has a directory window(10) selecting a directory for storing or opening the data. The directory window(10) has an IP address input window(10) for designating the IP address of the internet server(2). If the user activates the directory window(10), the user computer(6) gets connected to the IP address input in the IP address input window(10), the data stored in the IP address gets open and can be stored or modified. The internet server(2) has a plurality of user IDs and memory areas allocated to the users. If the user accesses tothe server(2) and inputs an ID, the corresponding memory area is automatically connected.
Patent KR-20010103894-A (KR)
Inventor: KIM MYEONG SU
Filed: 2000-05-10
Abstract: 본 발명은 단일코어를 이용한 광통신망 이중화와 고장감시방법 및 그 장치에 관한 것으로, 광선로에 구성되어 제 1송신단(Tx1)으로부터 수신된 신호를 소정의 비율로 전송하는 제 1방향성 결합기(DC1); 광송신기(12)에서 수신된 신호를 동일의 비율로 전송하거나 수신된 신호를 광수신기로 전송하는 제 2방향성 결합기(DC2); 광선로에 구성되어 제 1방향성 결합기(DC1) 및 제 2방향성 결합기(DC2)로부터 수신된 신호를 광선로로 바이패스시키거나 제 1수신단(Rx1)으로 전송하는 제 3방향성 결합기(DC3); 레이저 다이오드로 광신호를 송신하는 광송신기(12) 및 포토 다이오드로 광신호를 수신하는 광수신기(14)가 포함되어 입력되는 프레임의 주소를 해독하여 명령신호를 출력하는 선로통신 단말기(10)와, 직렬로 연결된 복수의 선로통신 단말기(10a-10f)에 폴링신호를 송신하는 제 1 및 제 2송신단(Tx1, Tx2)으로 구성된 주 송수신기와 선로통신 단말기의 응답프레임을 수신하는 제 1 및 제 2수신단(Rx1, Rx2)으로 구성된 부 송수신기가 포함된 중앙제어장치(30)로 이루어져 단일코어를 사용하고 2종류의 광커플러를 사용하여 저비용으로 이중화, 고장구간의 파급방지, 고장구간의 검출 및 고장원인의 분석 등의 기능을 수행하도록 설계한 것이다.
Patent KR-20000063211-A (KR)
Inventor: LEE CHANG DAE
IPC: A63F3/08
Filed: 2000-05-17
Abstract: PURPOSE: A game method for predicting stock price index for an economic learning is provided to enable the users to participate in the game with more enthusiasm by providing +/- 5% allowance limits and to allow the user to participate in the game with continuous interest by inducing the user to participate in a continuous two days or ten days stock price index answering game and providing prizes, such as the prize money. CONSTITUTION: A user connects to the operator's website, which is operated by the web server, by using a web browser installed in the user's system(S21). The user initiates the member log-in process(S22). After being approved by the log-in process, the user is transferred to the stock price index response window(S24). The user decides on a specific category that he/she is going to respond to(S25). If the user requires help for the selected category, the help button is pressed to confirm help information for various categories(S26). If the user desires to change the recorded responses after filling out the stock prices in the stock price index response window, he/she can change the responses by repressing the button to erase the recorded response and to input new response values(S27). The response values are selected and the confirmation button is pressed to transmit and to record the information in the DB(S28). The user receives score confirmation from the server and logs out from the server(S29).
Patent KR-20010107216-A (KR)
Inventor: JUNG YEON HO
IPC: G01N3/34
Filed: 2000-05-26
Abstract: 본 발명은 경수로용 원자로의 연료조립체 구성 부품들 중에서 연료봉을 지지하는 기능을 갖고 있는 지지격자체에 대하여 상온 및 고온 환경 하에서 충격시험을 위한 장치에 관한 것으로서 임의의 셀 수를 갖는 지지격자 시편에 대하여도 최저점에서의 충격이 가능하도록 충격해머의 전후 이동 조정기를 부착하였으며, 또한 연료조립체의 지지격자간 거리가 변경되면 충격해머 진자의 길이 조정이 필요하여 이를 가능하도록 하였다. 그리고 충격시험을 상온 및 고온의 환경 하에서도 시험이 가능하도록 별도의 노(爐)를 부착하였으며, 임의의 초기 각도에서도 정확한 초기 충격해머의 각도가 유지될 수 있도록 전자석을 사용한 충격해머 고정장치를 부착하였다. 또한 충격시험시 시간의 영역에서 해머의 각도를 추적할 수 있는 아나로그식 각변환계를 부착하여 충격시험시의 해머 각도를 아나로그 신호로 수집할 수 있도록 하였다. 이 진자식 충격해머는 지지격자 시편의 셀의 수에 따라 해머의 질량이 변경되어야 하는 점을 고려하여 충격해머의 질량을 쉽게 변경할 수 있는 구조로 하였다.
Patent KR-20010109631-A (KR)
Title: 포유병
Filed: 2000-05-31
Abstract: 본 발명에 따른 포유병은 부모가 갓난아이에게 우유를 먹이는 여러 가지 자세나 또는 갓난아이 스스로 포유병을 지탱하는 여러 가지 자세에 부합된다. 이러한 자세들은 갓난아이가 바닥에 누워 있거나 높은 의자에 앉아 있거나 또는 부모의 팔에 안겨서 서 있는 것들을 포함한다. 본 발명은 갓난아이에게 우유를 먹일 때 부모가 포유병을 지탱하는 것을 편안하게 해주고 또한 갓난아이 스스로 포유병을 지탱하는 것도 편안하게 해준다. 본 발명은, 포유병의 목부의 직경 중심을 통과하는 축이 포유병의 주 몸체의 직경 중심을 통과하는 축과 다른 높이에서 평행한 것에 의해, 우유가 항상 아래로 흘러 포유병의 목부와 젖꼭지에 차오르도록 설계된다. 포유병의 목부와 주 몸체를 연결하는 포유병의 벽 부분은 기울어져 있다. 이러한 기울어짐이 우유 또는 액체 음식을 높은 위치에 있는 포유병의 주 몸체로부터 낮은 위치에 있는 포유병의 목부를 향해 아래로 흐르도록 한다. 또한, 이러한 기울어짐에 의해 갓난아이가 우유 또는 액체 음식을 장시간 동안 즐거움을 느끼면서 일정하게 흡입할 수가 있게 된다. 결과적으로, 본 발명에 따른 포유병은 복통이나 소화불량을 일으키는 공기 매체가 그의 위로 침투하는 것을 방지하게 된다.
Patent KR-20010113321-A (KR)
Inventor: SONG HAN SANG
Filed: 2000-06-19
Abstract: 본 발명은 반도체 소자의 캐패시터 제조 방법에 관한 것으로, 폴리실리콘 또는 금속 물질을 하부 전극으로 사용하는 MIS 또는 MIM 구조의 캐패시터 제조 공정에서 유전체막으로 탄탈륨 옥사이드(Ta 2 O 5 )의 원료 물질인 Ta(C 2 H 5 O) 5 와 티타늄 옥사이드(TiO 2 )의 원료 물질인 Ti(OC 2 H 5 ) 4 를 혼합하여 유전체막을 형성하고, 이를 형성하기 위한 반응 가스로 NH 3 를 사용하여 박막내의 탄소 불순물을 억제하고 유전체막의 유전 상수를 증가시켜 정전 용량과 함께 누설 전류 특성을 개선할 수 있는 반도체 소자의 캐패시터 제조 방법이 제시된다.
Patent KR-20020005825-A (KR)
Inventor: AHN TAE YONG
IPC: C23F1/00
Filed: 2000-07-10
Abstract: PURPOSE: A composition for forming the etching mask pattern of a current collector is provided, to improve the adhesive strength to the material of a current collector, the chemical resistance, the water resistance and the printability of an etching mask pattern. CONSTITUTION: The composition comprises an acid-resistant polymer resin which is a copolymer of 70-95 wt% of a main chain forming monomer and 5-30 wt% of an acid-resistant acryl-based monomer; a water-proof polymer resin which is a copolymer of 70-99 wt% of a main chain forming monomer and 1-30 wt% of a water-proof acryl-based monomer; a pigment; a cross-linking agent; and a solvent. The content of the acid-resistant polymer resin and the water-proof polymer resin is 1-90 parts by weight, and the content of the cross-linking agent is 0.5-10 parts by weight. Preferably the acid-resistant polymer resin and the water-proof polymer resin has a glass transition temperature of -40 to 90 deg.C and a mass average molecular weight of 10,000 to several millions, and the mixing ratio is 2:8 to 8:2 by weight. Preferably the acid-resistant acryl-based monomer is acrylic (meth)acrylate, and the water-proof acryl-based monomer is hydroxyalkyl (meth)acrylate.
Patent KR-20020007441-A (KR)
Title: System for power line communication on multi-carrier modulation
Inventor: CHUN YU SIK
IPC: H04B3/54
Filed: 2000-07-13
Abstract: PURPOSE: A power line communication system using a DMT(Discrete Multi-Tone) modulation type is provided to satisfy an electronic wave limit standard by performing a baseband transmission using the DMT modulation type, raising an output of a transmission signal in a low frequency band, and lowering the output of the transmission signal in a high frequency band. CONSTITUTION: A transmission device(T) multiplies a weight value(N) according to a corresponding carrier for raising an output of a transmission signal in a low frequency band and lowering the output of the transmission signal in a high frequency band. A power line communication channel(35) supplies the signal transmitted from the transmission device(T) to the outside through a power line(32). A receipt device(R) multiplies data information provided through the power line communication channel(35) by a weight value(1/N) and recovers the data for improving a signal-to-noise ratio in the low frequency band and limiting an electronic wave emission in the high frequency band.
Patent KR-20020007608-A (KR)
Title: Semiconductor memory device adjusting sensing gain of data line sense amplifier
Inventor: SHIN SANG UNG
IPC: G11C11/409
Filed: 2000-07-18
Abstract: PURPOSE: A semiconductor memory device which can control a sensing gain of a current sense amplifier is provided to sense and amplify a voltage difference between a bit line and a complementary bit line even though the voltage difference is small. CONSTITUTION: A current sense amplifier(400) further comprises the first additional resistor(405) on both ends of the first load resistor(403) and the second additional resistor(406) on both ends of the second load resistor(404). The first and the second additional resistor are constituted with NMOS transistors responding to a sensing signal(sel). The sensing signal is activated to a logic high level at an activation time of a bit line sense amplifier. Resistances of the first and the second additional resistors vary according to the level of the first output voltage(V1) and the second output voltage(V2).
Patent KR-20020007815-A (KR)
Title: Coin chute device
Inventor: JUNG HOI SUNG
IPC: G07D1/00
Filed: 2000-07-19
Abstract: PURPOSE: Provided is an exit suite equipment in a coin release system which piles up the released coins to prevent from being blocked so that it helps the coins to be released with preventing the damage of the equipment. CONSTITUTION: In the exit suite equipment(101) in the coin release system(102) which includes an exit suite passage(114) with containing a lower entrance(104) for receiving coins horizontally and a rear exit(121) to release the coins vertically, the exit suite equipment in the coin release system is characterized by preparing an elastic narrow plate(107) projected on the transfer passage for the coins to form an elastic passage between a coin support side plate(105) and the lower entrance.
Patent KR-20010015373-A (KR)
Title: Reflection and transmission type liquid crystal display device
Inventor: LEE DONG HUN
IPC: G02F1/1335
Filed: 2000-07-19
Abstract: PURPOSE: A transflective liquid crystal display(LCD) is provided to increase the reflectance in reflective mode and the transmittance in transmissive mode by using a transflective film. CONSTITUTION: A transflective film(106) is interposed between a backlight(108) and a lower plate(140). The transflective film(106) is formed as a compound of reflective material(Ar,Al) and transmissive material(acryl resin). In reflective mode, an external light(132) is reflected by a reflective electrode(102). The external light(132) passing though a hole(103) formed inside the reflective electrode(102) is also reflected by the transflective film(106) toward an upper plate(112). The reflective region is the sum of area(S) of the reflective electrode(102) and area(delta L) of the hole(103). In transmissive mode, a backlight light(103) of a backlight(108) transmits a pixel electrode(104) covering the hole(103). Therefore, it is possible to increase the reflectance in reflective mode.
Patent KR-20020011053-A (KR)
Title: Personal ornaments
Inventor: AHN GANG MO
IPC: A44C25/00
Filed: 2000-07-31
Abstract: PURPOSE: An ornament is provided to increase the effect of decoration by making an electric bulb be turned on and off during the night or at a dark place, and to reduce the production cost by simplifying the structure thereof. CONSTITUTION: The ornament is comprised of a body(1), a circuit board(2) inside the body, a battery(3) located at the rear side of the circuit board, a cover(4), and a connecting hook(6) projected out of the body to be fastened with accessories(5). A fixed terminal(P1) is projected from the right side and the left side of the connecting hook, thereby a luminescent diode(7) is turned on and off when the accessories contact with the fixed terminal according to the rocking of the accessories. The connecting hook includes a spring.
Patent KR-20020011770-A (KR)
Title: Method and system for publishment and application of a discount coupon
Inventor: KANG IN MO
Filed: 2000-08-04
Abstract: PURPOSE: A method and system for issuing and applying a discount coupon is provided to enhance an advertising effect and a profit creation by solving an inconvenience of the discount coupon and enhancing an actual advertisement effect of the corresponding product, thereby improving an interactive linking relation between a discount coupon site on the Internet and a store located in a real space. CONSTITUTION: A client system(100) accesses to a discount coupon issuing system through an Internet backbone network and issues discount coupons through a member joining process. In case that a user is certified as a normal discount coupon possessor, the user may purchase a product using the issued discount coupon in an actual market being managed by a POS(point of sale) system(300). A discount coupon issuing system(200) includes a web server(210) managing a predetermined homepage, a certification server(220) managing a member DB, and a shopping mall server(230) managing a commodity DB(232) and a discount commodity DB(234), and a coupon issuing server(240) managing a member coupon DB(245). When a discount coupon issuing request is existed from the client system(100), the discount coupon issuing system(200) issues and stores discount coupons using the coupon issuing server(240). When a discount coupon using request is existed from the POS system(300), the discount coupon issuing system(200) certifies a normal use of the corresponding discount coupon and supplies a message for an application for the discount coupon to the POS system(300) in case that a certified user used the discount coupon normally.
Patent KR-20020014401-A (KR)
Title: Box for Packing a monitor
Inventor: PARK JAE HA
IPC: B65D85/38
Filed: 2000-08-18
Abstract: PURPOSE: A box for packing a monitor is provided which reduces unnecessary waste of a box material itself as well as a cushion material that is filled in the box so as to buff the monitor by changing a shape of a packing box from hexahedron to frustum of quadrangular pyramid. CONSTITUTION: In an ordinary packing box(100) in which an external appearance is formed by folding first, second, third and fourth walls(111-114) of a body(110) through folding lines, and a cover is formed by folding upper covers(121-124) and lower covers(131-134) formed at the upper and lower parts of the first, second, third and fourth walls through folding lines, a box(100) for packing a monitor is characterized in that the second walls(112) has the same area as the fourth wall(114), the first wall(111) has a smaller area than the third wall(113), the first and third upper covers(121,123) are formed in the same shapes as the first and third lower covers(131,133), and the second and fourth upper covers(122,124) and the second and fourth lower covers(132,134) are formed in a symmetrical shape so that a cross-sectional area of the box is reduced in a shape of frustum of quadrangular pyramid as it goes from the third wall(113) to the first wall(111), wherein left and right reduction parts(10,20) the cross-sectional areas of which are outwardly reduced are formed in parallel to each other at both side parts of the first and third upper covers(121,123) and the first and third lower covers(131,133), and a reduction part(30) the cross-sectional area of which is outwardly reduced and a projection part(40) the cross-sectional area of which is outwardly expanded are respectively formed on both side parts of the second and fourth upper covers(122,124) and the second and fourth lower covers(132,134).
Patent KR-20010007760-A (KR)
Inventor: PARK YEONG CHUN
IPC: A61H23/00
Filed: 2000-08-25
Abstract: PURPOSE: A thermo-bed for treating is provided, which can be kept by being folded into a half, can enhance the treating effect by controlling the lifted height of a heat-treating device according to the height of the body, and can be attached to the body closely by elastic protrusion of the heat-treating device. CONSTITUTION: The thermo-bed for treating is characterized in that: a front board(12) and a lower board(13) of a frame(11) are formed as one body with a side board(14); a flat gear bar and a supporting board(18) are can be attached separately by equipping with a dent for holding the flat gear bar and a supporting protrusion(13-2) onto the lower board(13); the back and forth movement of a moving board(51) is controlled by sensing the rotating state of a decelerating motor for moving(60); the vertical movement of a lifting device(90) is controlled by sensing the rotating state of a decelerating motor for lifting(70); and a heat-treating device(100) is elastically supported by an elastic device(101).
Patent KR-20010021433-A (KR)
Title: Coil device and method for manufacturing the same
Inventor: TOI TAKAOMI
IPC: H01F17/04
Filed: 2000-08-26
Abstract: PURPOSE: A coil part and a method thereof are provided to manufacture the wound coil part, wherein sufficient mounting reliability can be ensured and a high Q factor can be maintained, by providing an area for terminal electrodes of the coil part even when downsized. CONSTITUTION: Terminal electrodes(5) includes bottom electrodes(5a) formed on bottoms(2a) of flange parts(2), side electrodes(5b) formed on sides(2b) of the parts(2), and facet electrodes(5c) provided at lower portions of facets(2c) of the parts(2), respectively. Further, each electrode(5c) constituting the corresponding electrode(5) is formed so as to be substantially level with the electrode(5b) at a location close to the interface between the facet(2c) and the side(2b) of the part(2), and shorter at a central portion of the facet(2c) that at the location close to the interface.
Patent KR-20020019860-A (KR)
Inventor: HWANG HO KWU
IPC: A63F9/10
Filed: 2000-09-07
Abstract: PURPOSE: A numeral problem solution game device is provided to help a user to raise calculation ability including addition, subtraction, multiplication, and division, thus facilitating the activity of brain. CONSTITUTION: A flat iron board is cut into a size of 30 centimeters to 40 centimeters, and nine hexagons are drawn on the plane of the flat iron board in a manner that the nine hexagons are connected so as to alternate with each other. Blank circles are drawn at all corners of the nine hexagons, and magnetic tips marked with numbers from 1 to 30 are provided so as to be disposed on the blank circles for solving a correct answer of a given number problem.
Patent KR-20020023031-A (KR)
Inventor: JU SEOK HYEON
IPC: A47L9/00
Filed: 2000-09-22
Abstract: PURPOSE: A vacuum cleaner is provided to reduce a noise of the vacuum cleaner by extending a guide path of an exhaust air to decrease noise energy of the exhaust air. CONSTITUTION: A vacuum cleaner is constituted so that an air is absorbed by rotating an impeller(5) by a motor(7) and is exhausted to an air outlet(10) of a body through passing a housing which is coupled to an exhausting terminal(5b) side of the impeller(5) surrounding the motor(7). The vacuum cleaner comprises a first exhaust air guide path(R1) formed at an inside of the housing and a second exhaust air guide path(R2) formed at an outside of the housing and a cover of the body. The first exhaust air guide path(R1) comprises a partition and a first and a second exhaust portion. The partition is protruded from a bottom of the housing to surround the motor(7) at space formed between the inside wall and the motor. The partition has a height same as the height of a sidewall of the housing and has a thickness so that an interference with the motor is not generated and the exhaust air can be communicated.