baber/WOPTO huggingface dataset:
Patent KR-20140039672-A (KR)
Title: Emergency drive transmitting method and apparatus for automatic transmission
Inventor: JU HEE HUN
IPC: F16H59/40
Filed: 2012-09-24
Abstract: Disclosed are a device and a method for controlling a shift of an emergency driving gear of an automatic transmission. The present invention determines that a vehicle is driving when a vehicle speed sensor is malfunctioned and a directly-connected gear exists, thereby calculating an alternative vehicle speed signal value based on a change gear ratio of the directly-connected gear and the speed of an output shaft of a speed sensor of the output shaft. The present invention determines that the vehicle stops when the directly-connected does not exists, thereby calculating the alternative vehicle speed signal value by using the speed of the output shaft of the speed sensor of the output shaft received after getting into an aimed gear calculated based on the prior vehicle speed signal value. Therefore, the present invention controls the gear shift corresponding to emergency driving based on the alternative vehicle speed signal value by resetting the aimed gear based on the calculated alternative vehicle speed signal value and getting into the emergency driving gear, thereby minimizing time and costs required for maintenance.
Patent KR-20140046120-A (KR)
Inventor: CHOI YUN SEOK
IPC: G06F11/36
Filed: 2012-10-10
Abstract: 본 발명은 애플리케이션 검증을 위한 시스템 및 방법에 관한 것으로, 애플리케이션 실행 시 사용자 동작 명령에 따라 스크립트를 생성하고, 상기 애플리케이션의 비정상 동작이 검출된 경우, 비정상 동작 검출시의 콜스택 정보, 상기 생성된 스크립트 및 단말 정보를 포함하는 비정상 동작 검출 정보를 검증 관리 장치로 전송하는 테스트 단말, 상기 테스트 단말로부터 비정상 동작 검출 정보가 수신된 경우, 상기 스크립트를 포함하는 재연 시험 요청 신호를 적어도 하나의 재연 단말들로 전송하고, 상기 재연 단말들로부터 서비스 실행 정보 또는 비정상 동작 검출 정보를 수신 및 저장하는 검증 관리 장치, 상기 검증 관리 장치로부터 재연 시험 요청 신호가 수신된 경우, 상기 스크립트에 따라 서비스를 실행하면서 비정상 동작이 검출되는지의 여부를 판단하고, 그 판단결과에 따라 서비스 실행 정보 또는 비정상 동작 검출 정보를 상기 검증 관리 장치로 전송하는 적어도 하나 이상의 재연 단말을 포함한다.
Patent KR-20140046717-A (KR)
Title: Method and digital device for displaying 3d image
Inventor: CHOI HUN JUNG
IPC: G02B5/08
Filed: 2012-10-10
Abstract: According to one configuration of the present invention, a digital device for displaying a stereoscopic image includes several components: a stereoscopic image display module including a half mirror, a full mirror spaced apart from the half mirror, and a light source module for radiating light to a space between the half mirror and the full mirror, so that light reflected due to the half mirror is reflected between the half mirror and the full mirror. At the same time, a stereoscopic image is displayed on the digital device by virtue of light that passes through the half mirror, and a processor unit for controlling the stereoscopic image display module with reference to a control operation mapped to an operation mode of the digital device or a condition of a timer setting. According to the present invention, an interior function and an information providing function can also be provided.
Patent KR-20140048767-A (KR)
Title: 이동통신 시스템에서 사용자 단말 선택 방법 및 장치
Inventor: LEE KWANG WON
IPC: H04B7/04
Filed: 2012-10-16
Abstract: 본 발명은 이동통신 시스템에서 사용자 단말 선택 방법 및 장치에 관한 것으로, 복수 개의 셀에서 제n-1 사용자 단말(User Equipment, UE)을 선택하는 단계 및 제1 내지 제n-1 사용자 단말이 포함된 셀을 제외한 나머지 셀에 포함되는 사용자 단말 중 최대 WSR(Weighted Sum Rate)을 갖는 사용자 단말을 제n 사용자 단말로 선택하는 단계를 포함하는 것을 특징으로 한다. (n은 상수, n≥2) 
본 발명에 따르면, 적절한 사용자 단말을 선택하도록 스케쥴링하여 빔형성 기법 외에 추가적인 이득을 제공하여, 즉, 셀간 간섭을 추가적으로 줄이는 동시에 원하는 단말로의 신호의 크기를 증가시켜 시스템의 전체 수율을 향상시킬 수 있다.
Patent KR-20140051712-A (KR)
Inventor: YOON JU SICK
IPC: E04F15/18
Filed: 2012-10-23
Abstract: 본 발명은 마그네슘블록을 이용한 온수매트에 관한 것으로, 제1마그네슘블록과 제2마그네슘블록이 마그네슘 또는 마그네슘합금으로 이루어지고, 바디에 통공된 홀더부가 두 개 또는 그 이상으로 형성된 제1마그네슘블록를 가로방향으로 연이어 다수 개 배치시킨 제1행마그네슘블록부; 상기 제1행마그네슘블록부에 세로방향으로 접하도록 배치하되, 바디에 통공된 홀더부가 하나 또는 그 이상으로 형성된 제2마그네슘블록과 상기 제1마그네슘블록를 조합하여 가로방향으로 연이어 다수 개 배치시킨 제2행마그네슘블록부가 구비된 온수매트; 상기 온수매트에 세로방향으로 홀더 열이 정렬되게 상기 홀더 열을 따라 홀더부의 통공에 삽입 체결되는 파이프부재를 포함하고, 상기 제1마그네슘블록과 제2마그네슘블록의 바디에 구비된 베이스층의 표면에는 PEO처리층 또는 화성처리층을 형성한 후 그 위에 법랑코팅, 세라믹코팅, 불소수지코팅, 전착코팅 중에서 어느 하나를 선택하여 형성시킨 표면코팅층을 포함한 것을 그 특징으로 한다.
Patent KR-20140052443-A (KR)
Title: Plating and coating the flange facing the protective cover
Inventor: HWANG WON GYU
IPC: C23C2/02
Filed: 2012-10-24
Abstract: If there is a part that should be avoided from zinc plating, the plating is performed by taping the part to protect unnecessary plating. However, the unnecessary plating cannot be completely prevented if the plating target is a precision part or a part requiring high-density sealing, and the adhesive remains at the part which the tape was attached so that one more step has to be performed to remove the adhesive. To solve the problem described above, a part where the plating is unnecessary can be protected by inserting a magnet into a body when the zinc plating target is metallic, attaching the present invention to an unwanted part and detaching the present invention after finishing the zinc plating.
Patent KR-20140052635-A (KR)
Title: Product registering service providing method using item in open market
Inventor: PYO JUNE SEON
IPC: G06Q30/06
Filed: 2012-10-24
Abstract: The present invention relates to a method for providing a product registration service using an item of an open market. A service providing server to provide an open market service according to the present invention registers a user as a member, checks the user who becomes the member through an identification verifying process, supplies the item to an account of the member corresponding to recommender information, receives a product registration application by receiving product information from a terminal of a seller, and displays the product information of the registered product. The present invention activates e-commerce.
Patent KR-20140054785-A (KR)
Title: Adhesive for polarizing plate and polarizing plate manufactured using thereof
Inventor: SEO EUN MI
IPC: C09J163/00
Filed: 2012-10-29
Abstract: The present invention provides an adhesive composition for a polarizing plate, wherein the composition comprises an epoxy compound in which the glass transition temperature of a homopolymer is 120°C or higher, an epoxy compound in which the glass transition temperature of a homopolymer is 60°C or lower, an acrylate compound in which the glass transition temperature of a homopolymer is 150°C or higher, and a diacrylate compound in which the glass transition temperature of a homopolymer is 60°C or higher.
Patent KR-20140070682-A (KR)
Inventor: LEE SUNG HO
IPC: C07C305/06
Filed: 2012-11-05
Abstract: 본 발명은 에스터쿼트 및 이의 제조방법에 관한 것으로, 특히 섬유유연제 제조시 기존 에스터쿼트(EQ)보다 현저히 상승된 300-600cps을 가질 수 있게 하고, 미전환 글리세라이드, 글리세릴에스터 또는 이들의 혼합물 등의 함량이 낮아 섬유유연제의 장기 안정성과 사용성을 증가시킬 수 있는 에스터쿼트 및 이를 포함하는 섬유유연제에 관한 것이다.
Patent KR-20140058080-A (KR)
Title: Light emitting diode and method of fabricating the same
Inventor: JANG JONG MIN
IPC: H01L33/22
Filed: 2012-11-06
Abstract: Disclosed are a light emitting diode and a manufacturing method thereof. The method for manufacturing a light emitting diode includes a step of forming a protection layer to cover the sides of semiconductor layers before a growth substrate is separated by a chemical etching process. Damage to the semiconductor layers due to an etchant in the chemical etching process is prevented by covering the sides of the semiconductor layers with the protection layer.
Patent KR-20140062593-A (KR)
Title: Substrate supporting module
Inventor: KIM HYUN JUNG
IPC: H01L21/683
Filed: 2012-11-13
Abstract: A substrate supporting module according to the present invention comprises: a stage having a substrate mounted thereon; a supporting unit which has at least one part vertically penetrating the stage and which vertically moves to load or unload the substrate on or from the stage; a lower rotatory unit including first and second lower rotatory members which are installed to be mutually faced across the supporting unit inside the stage and which support the supporting unit while rotating; and a first upper rotatory unit including first and second upper rotatory members which are mutually faced across the supporting unit inside the stage and which support the supporting unit while rotating. Therefore, the substrate supporting module according to an embodiment of the present invention is provided to make the lower rotate unit, which supports the supporting unit, and the supporting unit move without being fixed when power or impact, which is generated by load or external forces on a substrate, is applied to the left and right sides of the supporting unit, thereby preventing the supporting unit from being damaged or bent.
Patent KR-20140063990-A (KR)
Title: Folder type bathtub
Inventor: KIM SONG YI
IPC: A47K3/06
Filed: 2012-11-19
Abstract: The present invention relates to a foldable bathtub comprising: a pair of fixed frames fixed to a wall; a water tank frame hinge-coupled between the pair of fixed frames; a foldable water tank connected to the water tank frame; a bottom plate installed beneath the bottom surface of the foldable water tank; and a fixing handle hinge-coupled at one end of the water tank frame. Therefore, the volume of the foldable bathtub can be minimized by folding and housing the foldable bathtub on the wall of a bathroom when the foldable bathtub is not used, thereby maximizing the space occupation of the floor of the bathroom.
Patent KR-20140068682-A (KR)
Inventor: KIM GEUN HO
IPC: G21F9/22
Filed: 2012-11-28
Abstract: The present invention relates to a container for cut waste of a reactor pressure vessel. According to the present invention, cut waste of a reactor pressure vessel is placed in the container in an easy manner; the process of placing the cut waste in the container can be visually confirmed; and a cover of the container is installed in a simple manner. The container for cut waste of a reactor pressure vessel includes a lower casing and an upper casing. The lower casing includes a floor plate and lower perpendicular walls integrated into both ends of the floor plate. The upper casing includes a cover, which contacts with tops of the lower perpendicular walls, and upper perpendicular walls which are formed by integrating into both ends of the cover and contact with sides of the lower perpendicular walls.
Patent KR-20140068734-A (KR)
Title: Liquid crystal display apparatus
Inventor: JUN BYEONG DEOG
IPC: G02F1/1333
Filed: 2012-11-28
Abstract: According to one embodiment of the present invention, disclosed is a liquid crystal display device which includes a case which includes a bending part, a backlight unit whose one side is restricted in the bending part and which includes a reflection unit, a light guide panel, and an optical sheet which are successively received in the case, a control member which is combined with a sidewall which is opposite to the bending part and restricts the other side of the backlight unit, and a liquid crystal display panel which is located on the backlight unit.
Patent KR-20130007517-A (KR)
Title: Method for displaying information
Inventor: KIM JAE HYUNG
IPC: G06Q50/22
Filed: 2012-12-06
Abstract: PURPOSE: An information output method is provided to supply information related customer health by analyzing information corresponding to RFID(Radio Frequency ID) tag information based on personal health information about customers. CONSTITUTION: A wireless terminal includes the followings. A memory unit(165) stores predetermined first information. A receiving unit(175) receives information corresponding to the RFID tag information from a server. An extracting unit(190) extracts the first information from the memory unit. A generating unit(180) generates second information by linking the information corresponding to the RFID tag information with the first information. [Reference numerals] (100) Wireless terminal; (105) Control unit; (110) Screen output unit; (115) Sound processing unit; (120) Information output unit; (125) RFID reader unit; (130) Battery; (135) Wireless processing unit; (140) Key input unit; (145) Information input unit; (150) Local area network unit; (155) IC chip reader unit; (160) IC chip; (165) Memory unit; (170) Transmitting unit; (175) Receiving unit; (180) Generating unit; (185) Processing unit; (190) Extracting unit; (200) RFID tag; (AA) Wireless network; (BB) Short range module; (CC) First information
Patent KR-20130070526-A (KR)
Title: Polysaccharide fraction isolated from persimmon leaf with immune-enhancing activity and method for producing the same
Inventor: HONG HEE DO
IPC: A61K31/7016
Filed: 2012-12-07
Abstract: PURPOSE: A polysaccharide fraction is provided to enhance activity of a complements system and immunity in a normal mouse and an immunosuppressed mouse, and to effectively manufacture a food composition and a pharmaceutical product for enhancing immunity. CONSTITUTION: A persimmon leaf-derived polysaccharide fraction 70-90 wt% of neutral sugar and 10-30 wt% of uronic acid. Uronic acid is selected from the group consisting of galacturonic acid and glucuronic acid. The neutral sugar contains rhamnose, fucose, arabinose, xylose, mannose, galactose, and glucose. A food composition for enhancing immunity contains the polysaccharide fraction as an active ingredient. A method for preparing the polysaccharide fraction comprises a step of treating persimmon powder with pectinase.
Patent KR-20140074699-A (KR)
Inventor: PARK KWANG SEOK
IPC: H05K1/03
Filed: 2012-12-10
Abstract: The present invention relates to a multilayer printed circuit board which includes an insulation resin sheet and a manufacturing method thereof. The insulation resin sheet includes a prepreg and an insulation resin layer which is formed on one side of the prepreg and is able to form an illuminance by a desmear process. The insulation resin layer includes: (a) a polyphenylene ether modified resin which is obtained by redistributing polyphenylene under the existence of 9,9-bis (hydroxy-aryl)-fluorene (BCF); (b) an epoxy resin; (c) a hardener; (d) modified epoxy resins of one or more types which are selected from a group which is formed with a dimeric acids modified epoxy resin and an urethane modified epoxy resin; and (e) an insulation resin sheet which is formed by hardening a thermosetting resin composition which includes a flame retardant. The present invention is able to provide a build-up printed circuit board which is able to form a high density microcircuit pattern while not only reducing a whole laminated thickness but also lowering an interlayer thermal expansion coefficient.
Patent KR-20140075260-A (KR)
Title: 타이어 트레드용 고무 조성물 및 이를 이용하여 제조된 타이어
Inventor: SHIN SANG HOON
IPC: C08K3/04
Filed: 2012-12-11
Abstract: 본 발명은 타이어 트레드용 고무 조성물 및 이를 이용하여 제조된 타이어에 관한 것으로서, 원료고무 100 중량부, 그리고 STSA(Stactical Thickness Surface Area)가 130 내지 150m 2 /g이고, COAN(Oil Absorption Number of Compressed Sample)이 110 내지 130cc/100g이고, Dw(Average of Aggregate Size Distribution on the basis of weight)가 80 이하인 고보강성 카본블랙 48 내지 54 중량부를 포함한다. 
상기 타이어 트레드용 고무 조성물은 칩컷 성능은 유지하면서 내마모 성능 및 조정 안정성을 개선시킬 수 있다.
Patent KR-20140077392-A (KR)
Inventor: NAM I HYEON
IPC: F03D11/04
Filed: 2012-12-14
Abstract: The present invention relates to a pile construction structure for fixing a lower structure of an offshore wind power system which comprises: a fixed body having a fixed height, installed on the seabed; at least one casing guide longitudinally installed on an inclination material mounted on the edge of the fixed body; a work plate mounted on the upper part of the fixed body, having a plate connection hole on a position corresponding to the inclination material; a casing pile installed on the seabed by passing through a through hole of the work plate and the inside of a casing guide, and having a pile pathway, in which a fixing pile is inserted, formed therein; and a casing, passing through the plate through hole and the casing guide to be combined with the upper part of the casing pile and having a pile pathway, through which the fixing pile passes, formed therein. The pile construction structure according to the present invention is provided to easily construct a fixing pile, which is installed on the lower structure of an offshore wind power system, on a predetermined place by using a casing guide, a casing pile and a casing, thereby reducing work expenses and hours.
Patent KR-20140077798-A (KR)
Title: Apparatus for dehydrating food garbage
Inventor: KIM HAN SIK
IPC: B09B3/00
Filed: 2012-12-14
Abstract: Disclosed is a device for dehydrating food waste according to an embodiment of the present invention. The device for dehydrating food waste according to an embodiment of the present invention comprises a container box having at least one concavo-convex groove at the top edge thereof; a support container formed in order to be arranged in the box; a filtering container arranged in the support container to have multiple through-holes for containing food waste; a pressing container formed to protrude above the filtering container and the support container when arranged in the filtering container; and a compressing plate formed at the top of the container box and having at least one concavo-convex hole at the edge thereof in order to be coupled with the concavo-convex groove of the container box, wherein the pressing container is pressurized when the compressing plate is pressed, so that moisture in the food waste contained in the filtering container is discharged to the support container.
Patent KR-20130075693-A (KR)
Title: Image forming apparatus and method of patch detection
Inventor: SUZUKI SHINYA
IPC: G03G15/01
Filed: 2012-12-26
Abstract: PURPOSE: An image forming apparatus and a patch detecting method are provided to reduce occurrence of an edge density changing phenomenon in an edge unit of a patch image, thereby detecting the position of the patch image with high precision. CONSTITUTION: Multiple developing units develop latent images formed on multiple photoreceptors by an exposure unit. An image carrying unit makes developed images be transferred. Based on reflective light quantity detected by a sensor, a patch detecting unit detects the position of a patch image (57) formed on the image carrying unit. The patch image has a first area (571,573) and a second area (574) which are formed on the same photoreceptor. The second area is adjacent to the first area. The concentration of the second area is lower than the concentration of the first area. [Reference numerals] (AA) Potential; (BB) Light sensor output; (CC) Threshold value
Patent KR-20140085670-A (KR)
Title: A interface device the horizontal material support
Inventor: LEE BUM SU
IPC: E04G17/14
Filed: 2012-12-26
Abstract: The present invention relates to a horizontal member connecting device for a support, and it is an objective of the present invention to stably and conveniently connect a horizontal member to a support in order to horizontally support the support or to conveniently separate the horizontal member from the support. The horizontal member connecting device for the support according to an embodiment of the present invention is to connect the support, which has an outer pipe and an inner pipe mounted vertically inside the outer pipe to be able to move, and the horizontal member for horizontally supporting the support, and includes first and second bodies which are mounted on the outer circumference of the support and are connected to each other by a hinge and each of which has connection holes spaced apart from each other at the edge to be connected with the horizontal member; a locking part formed at one side of the first body; and a connection part formed at one side of the second body getting in contact with one side of the first body in order to unite the first body and the second body by engaging with the locking part.
Patent KR-20140084651-A (KR)
Title: Heat Pipe Roll Preventing Bearing Overheated
Inventor: SONG GIL HO
IPC: F16C13/00
Filed: 2012-12-27
Abstract: The present invention relates to a heat pipe roll for preventing a bearing from being overheated which reduces heat transferred to the bearing while capable of maximizing the ability to correct the shape of a strip without being influenced by the temperature of the strip, a number of rolling, and the order of inserting materials to be processed. The heat pipe roll for preventing a bearing from being overheated includes a neck part of which both ends are connected to the bearing; a rolling part which rolls a slab, which passes between the neck parts, and includes a plurality of insertion holes, formed to have a certain depth in the circumferential direction; and a heat pipe which is inserted in the insertion hole inside the rolling part, and is extended in the direction of a roll shaft. On a side of the neck part, an inner diameter of the insertion hole and an outer diameter of the heat pipe are separated from each other so that heat transferred from the heat pipe to the neck part can be reduced.
Patent KR-20140084764-A (KR)
Title: Apparatus for printing image
Inventor: CHOI BYUNG NAM
IPC: B41J11/44
Filed: 2012-12-27
Abstract: An image forming apparatus according to an embodiment of the invention comprises: an image forming unit which prints an image on a print medium; a paper feeding path which allows the print medium to be moved from a paper feeding cassette to the image forming unit; a paper discharging path which allows the print medium which has passed through the image forming unit to be moved; and a diverter and a guide unit provided on the paper discharging path, wherein the paper discharging path comprises a first paper discharging path and a second paper discharging path, the diverter is located in a part in which the first paper discharging path and the second paper discharging path are branched and can be rotated to open any one of first paper discharging path or second paper discharging path and to close the other, and the guide unit comprises a protrusion part which protrudes towards the inner side of paper discharging path and a rotating member which is coupled to the protrusion part to be rotated.
Patent KR-20140087681-A (KR)
Inventor: LEE JUNG SUN
IPC: H01L51/56
Filed: 2012-12-31
Abstract: A substrate processing apparatus is disclosed. The substrate processing apparatus according to one embodiment of the present invention includes: a plurality of processing chambers which perform a preset substrate process; a transfer chamber which is simultaneously connected to the processing chambers, and forms a space for transferring a substrate carrier loading a substrate between the processing chambers; a substrate input and output unit which is formed in the transfer chamber, and inputs and outputs the substrate carrier to and from the inside and the outside of the processing chambers through gate valves located between the processing chambers and the transfer chamber; and a substrate transfer unit which transfers the substrate carrier near different gate valves in the transfer chamber.
Patent KR-20120047896-A (KR)
Inventor: GYRN STEFFEN
IPC: A61M5/172
Filed: 2010-08-06
Abstract: 본 발명은 약물 전달 장치용 베이스 파트에 관한 것이다. 베이스 파트는 사용시 환자의 피부에 고정되고 캐뉼라 파트에 연결되며, 캐뉼라 파트는 적어도 부분적으로 피하에 위치된다. 베이스 파트는 환자의 혈액에 있는 글루코스와 같은 하나 또는 그 이상의 성분을 감지할 수 있는 센서 유니트에 연결된다. 베이스 파트는 고정 수단(15)을 구비하고, 고정 수단(15)은 릴리스 가능하게 저장소/전달 파트(part)를 사용시 베이스 베이스 파트에 연결하고, 저장소로부터 나오는 제1 유체 경로에 상응하는 제1 유체 경로 또는 수단은 저장소/전달 파트가 베이스 파트에 부착될 때 저장소/전달 파트와 베이스 파트 사이의 유체의 유동을 허용하고, 제1 유체 경로는 릴리스 가능한 저장소/전달 파트가 베이스 파트에 부착되지 않을 때 유체 유동을 방해하고 전달 파트가 베이스 파트(1)에 부착될 때 유체 경로(19)를 개방하는 수단(17)을 구비한다. 베이스 파트(1)는 하부의 장착면(2), 및 적어도 하나의 캐뉼라 및 적어도 하나의 센서(sensor) 파트 또는 적어도 두 개의 캐뉼라들 형태의 두 개 또는 그 이상의 피하(subcutaneous) 유니트들(7)(70)이 연장하는 하나 또는 그 이상의 개구들(12A)(12C)을 더 구비하고, 제1 유체 경로(19)의 출구로부터 나오는 유체의 유동을 사용시 피하적으로 위치된 캐뉼라(22)(22a)(22b)의 입구로 허용하는 제2 유체 경로를 구비하고, 저장소/전달 파트로부터 센서 접촉 파트까지 마련된 신호 경로를 구비한다. 제2 유체 경로는 사용시 피하에 위치된 캐뉼라의 끝단 개구와 유체 연결된다.
Patent KR-20120034728-A (KR)
Inventor: HEINEMANN WOLFGANG
IPC: B23F5/16
Filed: 2010-06-01
Abstract: 본 발명은 호브 필링(hob peeling)에 의해서 가공품(3)에 톱니를 만들기 위한 장치와 관련이 있으며, 이 장치는 특히 내부에 톱니가 형성될 가공 휠(3)을 수용하기 위해 회전 구동할 수 있는 가공품 스핀들(1) 그리고 필링 휠(4)을 지지하는 회전 구동 가능한 공구 스핀들(2)을 구비하고, 이 필링 휠은 가공품(3)이 맞물릴 때에 톱니 간격을 결정하는 규칙적인 톱니 피치(tooth pitch)를 갖는다.  이와 같은 장치의 성능 및/또는 이와 같은 방법의 효율을 높이기 위하여 그리고 이 목적을 위해 적합한 필링 휠을 제공하기 위하여, 필링 휠(4)의 적어도 소수의 동일하게 형성된 톱니들의 간격은 규칙적인 톱니 피치의 수 배에 상응한다.