baber/WOPTO huggingface dataset:
Patent KR-20120064813-A (KR)
Inventor: CHUNG WOO JIN
IPC: B60B19/00
Filed: 2010-12-10
Abstract: 본 발명은 듀얼 오프셋 구조를 갖는 전방향 휠 메커니즘 및 이를 이용한 전방향 이동 로봇에 관한 것이다.  본 발명에 따른 듀얼 오프셋 구조를 갖는 전방향 휠 메커니즘은 상기 전방향 휠 메커니즘에 의해 주행하는 주행 본체의 하부에 위치하는 캐스터 모듈과; 상기 주행 본체에 설치되는 주행 모터 및 조향 모터와; 상기 캐스터 모듈이 상기 주행 본체에 대해 조향축을 중심으로 회전 가능하게 상기 주행 본체와 상기 캐스터 모듈을 연결하며, 상기 조향 모터의 회전에 따라 상기 캐스터 모듈을 상기 조향축을 중심으로 회전시키는 조향축 어셈블리와; 상기 캐스터 모듈에 회전 가능하게 설치되는 캐스터 휠 - 상기 캐스터 휠의 회전 중심은 상기 조향축으로부터 상기 캐스터 휠의 주행 방향과 상기 캐스터 휠의 회전축 방향으로 각각 주행 방향 오프셋 및 측면 방향 오프셋 만큼 이격되도록 상기 캐스터 모듈에 설치됨 - 과; 상기 주행 모터의 회전에 따라 상기 캐스터 휠이 회전하도록 상기 주행 모터의 회전력을 상기 캐스터 휠에 전달하는 주행축 어셈블리를 포함하는 것을 특징으로 한다.  이에 따라, 주행 모터와 조향 모터가 주행 본체에 설치되고 듀얼 오프셋을 적용함으로써, 홀로노믹 주행 능력과 전방향 주행 능력의 구현이 가능하게 된다.
Patent KR-20120064817-A (KR)
Title: Direct injection type liquefied petroleum-gas injection system
Inventor: KANG MYUNG KWON
IPC: F02M37/00
Filed: 2010-12-10
Abstract: PURPOSE: A direct injection LPI(Liquid Petroleum Injection) system is provided to maintain the thermal equilibrium of a bombe as fuels containing bubbles bypass to the bombe by opening a second shut-up valve for a pre-set driving time. CONSTITUTION: A direct injection LPI system(10) comprises a fuel pump(12), a high pressure pump(14), a fuel supply line(S), a fuel recovery line(R), a bypass line(B), and shut-up valves. The fuel pump is embedded in a bombe(11), and supplies fuels to an engine by pumping. The high pressure pump pressurizes a part of pumped fuels at the high pressure. The fuel supply line transfers the fuels provided from the fuel pump to the high pressure pump. The fuel recovery line recovers the rest fuels of the pumped fuels to the bombe. The bypass line branches from the fuel recovery line, and bypasses the fuels containing bubbles to the bombe. The shut-up valves are opened and closed in order to open and close the bypass line.
Patent KR-20120064917-A (KR)
Title: Refining method of natural silica sand
Inventor: JUNG BACK WOON
IPC: B03C1/02
Filed: 2010-12-10
Abstract: PURPOSE: A refining method of quartz sand is provided to obtain highly pure quartz sand with silicon dioxide content of 99.8% or more by using only physical refining method. CONSTITUTION: A refining method of quartz sand comprises: step (a) manufacturing natural silica raw ore to slurry state by mixing natural silica raw ore and water, and separating impurities by stirring; step (b) removing coarse grain impurities in the slurry; step (c) removing micro particles in the slurry; step (d) sorting a second mineral which has lower specific gravity than a first mineral by removing the first mineral in the slurry; and step (e) sorting refined natural silica which is not by removing paramagnetic material included in natural silica by magnetic force. In the step (b), trommel screen or vibrating screen with the mesh size of 1-3 mm is used. In the step (c), hydro cyclone is used.
Patent KR-20110073270-A (KR)
Title: Timepiece movement fitted with a vibrating alarm
Inventor: BORN JEAN JACQUES
IPC: G04B23/12
Filed: 2010-12-13
Abstract: PURPOSE: A vibration alarm mounted watch movement is provided to reduce manufacture costs of watch by reducing watch elements. CONSTITUTION: A vibration alarm mounted watch movement comprises an energy source(36). The energy source is combined in a rotation weight using a first chain in order to automatically wind a watch movement. The energy source is combined in a vibration member and actuator(41) using a second chain in order to form a vibration alarm mechanism which can operates on time. The vibration member of vibration alarm mechanism is the rotation weight. The energy source is a barrel which can be wound by manual winding mechanism(37).
Patent KR-20120069985-A (KR)
Inventor: KIM JANG HUN
IPC: G06Q50/02
Filed: 2010-12-21
Abstract: PURPOSE: An internet shopping mall operating method based on the rice of a special person and system thereof are provided to improve the convenience of purchasers by widely support high-quality rice to the purchasers through the Internet. CONSTITUTION: A rice expert management DB(Data Base)(40) records information for rice experts of all time. The rice expert management DB(50) records the information for sale rice. A rice classroom management DB(60) records rice general knowledge information for normal farmers or new farmers. A design management DB(90) manages various photographs of a shopping mall and product images. An order management DB(110) records the rice order information of a client.
Patent KR-20120074578-A (KR)
Title: Method and apparatus for detecting the scratch of an wire rod
Inventor: YON JONG PIL
IPC: G01B11/30
Filed: 2010-12-28
Abstract: PURPOSE: A method and a device for detecting scratches of a wire rod are provided to improve the accuracy of the defect detection of a wire rod by distinguishing noise having the same scale of scratches. CONSTITUTION: A method and device for detecting scratches of a wire rod is as follows. Images of a surface of a wire rod is edge-filtered(S11). An area where a positive edge and negative edge are generated is detected from the edge-filtered images(S14) and the detected area is set as a scratch generation area.
Patent KR-20120074668-A (KR)
Title: Device and method for detecting marker
Inventor: MUN YOUNG SHIK
IPC: G06T7/00
Filed: 2010-12-28
Abstract: PURPOSE: A marker detecting device and a method thereof are provided to detect a marker of an input image even though a portion of the marker is hidden. CONSTITUTION: A conversion matrix generating unit(107) forms a first polygon using second feature points in an interest area. The conversion matrix generating unit forms a second polygon using feature points of an input marker image. The input marker image is matched with the second feature points. The conversion matrix generating unit generates a conversion matrix of a polygon using the first and second polygons. A marker predicting unit(109) predicts corner points of the input marker image using the conversion matrix and corner points of a registered marker image.
Patent KR-20120075940-A (KR)
Title: Method for forming ogranic thin layers on nanostructure
Inventor: LEE KYOUNG IL
IPC: H01L51/42
Filed: 2010-12-29
Abstract: PURPOSE: A method for forming an organic thin film is provided to improve efficiency of an organic solar cell by uniformly forming the organic thin film on the surface of a zinc oxide nanostructure body. CONSTITUTION: An oxide nanostructure is formed on a substrate(S100). The substrate in which the oxide nanostructure is formed is arranged within a cell for supercritical formation(S200). An organic solution consisting of an organic compound and a solvent is provided to the inner side of the cell for the supercritical formation(S300). Temperature and pressure within the cell for the supercritical formation are controlled(S400). A carbon dioxide is provided within the cell for the supercritical formation(S500). A supercritical state is maintained in order to coat the organic compound with the oxide nanostructure(S600). A supercritical carbon dioxide and an organic compound solvent are eliminated(S700).
Patent KR-20100025573-A (KR)
Title: Rate matching with multiple code block sizes
Inventor: MALLADI DURGA PRASAD
IPC: H04B7/26
Filed: 2008-06-12
Abstract: Bits included in each code block of a transport block can be stored to an associated circular buffer and transmitted over a channel. Each circular buffer can vary in size in proportion to a size of the associated code block. Therefore, since in certain operating environments code blocks for a transport block can vary in size, circular buffers can vary in size as well. Accordingly, when not all data from a transport block and/or an array of circular buffers can be transmitted over the channel, each circular buffer from the array can transmit a portion of bits that is proportional to a size of the respective circular buffer (or the associated code block or encoded code block). Furthermore, the number of bits transmitted from each circular buffer can be constrained by an aggregate budget for all circular buffers and can be further constrained to be an integer multiple of a modulation order for the transport block.
Patent KR-20100075821-A (KR)
Title: Flow rate metering device, communication system, flow rate measuring method, flow rate measuring program, fluid supply system and gas tool monitoring device
Inventor: YOKOHATA MITSUO
IPC: F23N5/26
Filed: 2008-08-06
Abstract: Intended is to make more prompt and proper the counter-measures of a flow rate measuring device against a new event in a use environment. In a gas meter (100), an ultrasonic flow meter (104) measures the flow rate of a gas to flow in a passage (102), and a new event detecting unit (108) detects it from the flow rate pattern of the measured flow rate that a new event or an event not existing in the previous use environment has newly occurred in the use environment of the fluid. A transmit-receive unit (110) transmits a new event signal indicating the new event detected by the new event detecting unit (108), to a center device (200) via a network (300). The new event is exemplified by the introduction of a new gas tool into a user's house, an abnormal use of the tool, or the detection of a CO generation.
Patent KR-20100049058-A (KR)
Title: Methods and apparatus for successive interference cancellation based on transmit power control by interfering device with success probability adaptation in peer-to-peer wireless networks
Inventor: JOVICIC ALEKSANDAR
IPC: H04W52/24
Filed: 2008-07-06
Abstract: In an ad hoc peer-to-peer communication network between wireless devices, a low priory first transmitter device adjusts it transmit power based on a received transmission request response from a higher priority second receiver device. The first transmitter device broadcasts a first transmission request to a corresponding first receiver device and may receive a first transmission request response from a different second receiver device. The second transmission request response is sent by the second receiver device in response to a second transmission request from a second transmitter device. The first transmitter device calculates an interference cost to the second receiver device as a function of the received power of the first transmission request response. A transmission power is obtained as a function of the calculated interference cost and the transmission power of the first transmission request, the transmission power to be used for traffic transmissions corresponding to the first transmission request.
Patent KR-20100051078-A (KR)
Title: Pneumatic tire
Inventor: MURATA TAKEHIKO
IPC: B60C11/01
Filed: 2008-08-01
Abstract: Intended is to provide a pneumatic tire, which enhances a wear resistance while making a dry gripping property and a wet performance compatible at a high level. In a tread face (2), an outer region (2o) directed outward of a vehicle has one longitudinal main groove (3) arranged therein, and an inner region (2i) directed inward of the vehicle has first and second longitudinal main grooves (4 and 5) arranged therein. A central region (Rc) between the longitudinal main grooves (3 and 4) is formed into a rib continuously extending in the circumferential direction, and an outer shoulder region (Ro) between the longitudinal main groove (3) and TEo is formed into a row of outer blocks divided by an inclined main groove. The outer blocks have an inclined auxiliary groove formed to have an inclination different from that of the inclined main groove, so that the outer blocks are divided into a first block portion on the equatorial side of the tire and a second block portion on the grounding side.
Patent KR-20100075995-A (KR)
Title: Vehicle airbag device
Inventor: ARIMA TAKASHI
IPC: B60R21/26
Filed: 2008-10-09
Abstract: [PROBLEMS] A vehicle airbag device in which measures to gas leakage are reliably taken when a bracket is mounted on an inflator. [MEANS FOR SOLVING PROBLEMS] The vehicle airbag device has an airbag, the bracket, a band-like body (10), and a sealing section (11). The airbag has an inflator insertion section (4) formed integrally with the airbag and allowing the gas ejecting inflator (5) to be inserted into the insertion section and is inflated and expanded by gas flowing into the airbag from the inflator insertion section. The bracket is used to install the inflator on the vehicle body side and has an inflator-side installation section (8) installed on the outside of the inflator insertion section to partially cover it. The band-like body (10) surrounds and integrates together both the inflator-side installation section and the inflator inserted in the inflator insertion section. The sealing section (11) is formed at the inflator-side installation section along the band-like body and seals a gap (s) produced between the band-like body and the surface (8a) of the inflator-side installation section by a step (h) between the surface (8a) and the surface of the inflator insertion section.
Patent KR-20100103463-A (KR)
Inventor: HULTBERG STEFAN
IPC: G06Q20/00
Filed: 2008-12-04
Abstract: 본 발명은 안전한 거래에 있어서 제 1 거래부 및 제 2 거래부가 부정 행위에 대하여 보호되는 휴대용 무선통신 디바이스(10)를 이용한 안전한 거래 방법에 관한 것으로서, 특히 미리 결정된 거래 서버에 대하여 공통의 거래 ID를 사용하는 것이다.
Patent KR-20100086016-A (KR)
Title: System and method for selection of security algorithms
Inventor: ARNOTT ROBERT
IPC: H04W12/08
Filed: 2008-10-27
Abstract: There is described a method and apparatus for managing security for a connection between a user device and a communications network comprising at least one base station and a core network. In one embodiment, the method includes receiving at the core network security capability information for the user device connecting to the communications network. Security capability information for the base station is then obtained from memory or from the base station itself. The security capability information for the user device and the security capability information for the base station is then processed in the core network to select a security policy for a connection between the user device and the base station and the selected security policy is transmitted to the base station.
Patent KR-20100102103-A (KR)
Inventor: HOFMANN STEFAN
IPC: A61K47/48
Filed: 2008-10-29
Abstract: 본 발명은 동물의 모발에 선택적으로 결합하는 항체 및 특정 제제가 동물 모발에 인도될 수 있는 항체 기재 약물 전달 시스템을 제공한다.  이는 동물 외부기생충 처리를 위한 치료제의 유효 기간을 증가시키고, 이들 약물의 독성을 감소시키고, 이들의 방출 프로파일을 개선시키고자 하는 필요성에 의해 조종된다.
Patent KR-20100082805-A (KR)
Title: On-vehicle heater and its manufacturing method
Inventor: TAGUCHI KOSHIRO
IPC: H05B3/20
Filed: 2008-01-30
Abstract: An on-vehicle heater comprises a heating body unit including a heating element, an electrode member stacked on and in contact with the heating element, an insulation sheet for enveloping the heating element and electrode member, and a tubular body which stores the heating element and electrode member enveloped by the insulation sheet; a radiator unit stacked on the heating body unit; and a cap attached to an end part of the heating body unit. The electrode member includes a terminal portion which is led out to the outside the tubular body from an opening formed in an end part of the tubular body and then is bent and penetrates the cap to be led out from the cap.
Patent KR-20100098653-A (KR)
Inventor: SINGH JASBIR
IPC: A61K31/4418
Filed: 2008-11-20
Abstract: 본 발명은 1 이상의 추가의 고리를 포함하는 바이아릴 화합물의 속에 관한 것이다. 화합물은 뇌졸중, 심근 경색증 및 심혈관 염증성 질환 및 질병의 치료 및 예방에 유용한 PDE4 억제제이다. 화합물은  의 화학식 I를 갖는다. 특정의 실시태양은 화학식  을 갖는다.
Patent KR-20100106455-A (KR)
Inventor: ZHOU BAOSUO
IPC: H01L21/027
Filed: 2008-10-28
Abstract: 집적 회로(200)에서 절연된 피처의 밀도를 증가시키는 것을 포함하는 방법이 개시된다.  하나 이상의 실시예에서, 집적 회로(200)에서 절연된 피처의 시작 밀도보다 2배 이상 큰 절연된 피처의 최종 밀도를 갖는 절연된 피처의 패턴을 갖도록 집적 회로(200)를 형성하는 방법이 제공된다.  본 방법은 밀도 X를 갖는 기둥(122)의 패턴을 형성하는 단계 및 기둥(122) 사이에 적어도 X 밀도를 갖는 홀(140)의 패턴을 형성하는 단계를 포함할 수 있다.  기둥(122)은 선택적으로 제거되어 적어도 2X 밀도를 갖는 홀(141)의 패턴을 형성할 수 있다.  일부 실시예에서는, 밀도 2X를 갖는 기둥의 패턴을 제공하기 위해, 기판(100)에 대한 에피택셜 퇴적에 의한 것과 같이, 홀(141)의 패턴에 플러그(150)가 형성될 수 있다.  다른 실시예에서, 홀(141)의 패턴은 에칭에 의해 기판(100)으로 전사될 수 있다.
Patent KR-20100103572-A (KR)
Title: Device for measuring the movement of a self-guiding vehicle
Inventor: MAIRE ALAIN
IPC: B61L25/02
Filed: 2007-12-10
Abstract: A device for measuring the movement of a self-guiding vehicle, that has an enhanced measuring reliability, in particular during an adhesion loss and independently from the travel profile of the vehicle in terms of slope, turn and slant. To this end, the device for measuring the movement of a self-guiding vehicle includes on board thereof two accelerometers coupled to a movement calculator, wherein each accelerometer includes two measurement axes on which are measured projections of a vehicle acceleration resultant. The four measurement axes of the accelerometers are adjusted so that the calculator provides, from the four projection measures, at least one very accurate longitudinal acceleration value of the vehicle at each point of a route including both slopes and turns.
Patent KR-20100126672-A (KR)
Inventor: MOENS AN
IPC: A61P9/00
Filed: 2009-02-06
Abstract: 본 발명은 허혈중의 심근 기능이상을 둔화시키고 재관류 후의 손상을 개선하기 위한, 높은 투여량의 엽산 또는 등가의 투여량의 이의 생물학적 활성 유도체의 용도에 관한 것이다.  본 발명은 구체적으로 재관류 전 활성 허혈중의 200 mg 이상의 높은 투여량의 엽산 또는 등가 투여량의 유도체의 적용에 의한 조기 치료에 관한 것이다.
Patent KR-20100101171-A (KR)
Inventor: CARTER DAVID SCOTT
IPC: A61P25/24
Filed: 2009-02-05
Abstract: 본 발명은 화학식 I의 화합물(여기서, Ar, R 1 , R 2 , R 3  및 R 4 는 본원에 정의된 바와 같다) 또는 이의 약학적으로 허용되는 염에 관한 것이다.  또한 상기 화합물을 포함하는 약학 조성물, 이를 이용하는 방법 및 이를 제조하는 방법에 관한 것이다.
Patent KR-20100130179-A (KR)
Inventor: PARRI OWAIN LLYR
IPC: C09K19/32
Filed: 2008-12-22
Abstract: 본 발명은 신규한 반응성 메소젠성 화합물(RM); 이를 포함하는 중합성 액정(LC) 혼합물 및 중합체; 및 상기 화합물, 혼합물 및 중합체의, 광학, 전광, 전자, 반도체 또는 발광 부품 또는 장치에서의 용도, 장식, 보안 또는 화장품 제품에서의 용도, 특히 높은 광학 분산도를 갖는 중합체 필름에 사용하기 위한 용도에 관한 것이다.
Patent KR-20100127762-A (KR)
Inventor: KUEHNER JOCHEN
IPC: B60L3/04
Filed: 2008-12-30
Abstract: 본 발명은 스위칭 가능한 저항기(2)를 포함하는, 전기 회로망 또는 용량성 부품을 방전하기 위한 장치에 관한 것이다.  방전 회로는, 스위칭 가능한 저항기(2)가 PTC 저항기(R1)와 스위치(T1)를 포함할 때 특히 손실이 적으며 높은 신뢰도를 갖고 작동하고, 스위치의 제어 단자(G)는 공급 전압으로부터 전력을 공급받는다.
Patent KR-20100124261-A (KR)
Inventor: CHEN YVONNE
IPC: A61P35/00
Filed: 2009-01-14
Abstract: 본 발명은 포유동물에서 조혈 종양의 치료를 위해 유용한 CD79b에 대한 인간화 및 접합된 항체, 및 그를 위한 항체의 사용 방법에 관한 것이다.
Patent KR-20110002039-A (KR)
Inventor: GOETZ ACHIM
IPC: C09K19/32
Filed: 2009-03-04
Abstract: 본 발명은, 중합성 화합물, 및 상기 화합물의 제조 방법 및 중간체 생성물, 및 광학, 전광 및 전자 용도, 특히 액정(LC) 매질 및 LC 디스플레이, 주로 PS(중합체-안정화된) 또는 PSA(중합체-지속된 배향) 유형의 LC 디스플레이에서의 이의 용도에 관한 것이다.
Patent KR-20100135314-A (KR)
Title: Donor-accepter compound
Inventor: OHTA KAZUCHIKA
IPC: C07D487/22
Filed: 2010-02-02
Abstract: PURPOSE: A donor-acceptor complex is provided to form homeotropic oritentation and to use as an organic material of an organic thin film solar cell. CONSTITUTION: A donor-acceptor complex is denoted by formula 1. In formula 1, M is a glass metal; A is a alkyl group of straight structure or branched structure or alkoxy group of straight structure or brached structure; B is hydrogen or alkoxy group; and E is fullerene of C_60, C_70, C_74, C_76, C_78, C_80, C_82, C_84, C_86, C_88, or C_90.
Patent KR-20120081794-A (KR)
Title: Display apparatus
Inventor: PARK SANG DON
IPC: G02F1/1333
Filed: 2011-01-12
Abstract: PURPOSE: A display device is provided to reduce costs for eliminating borders and a glass board. CONSTITUTION: A display panel(100) comprises a frontal substrate and a rear substrate. A bracket(140) is attached to a rear side of the rear substrate. A rear cover(130) is arranged behind the bracket. The rear cover is not coupled with the bracket but includes a portion which contacts the bracket. The bracket is connected to the rear cover on the first area of the display panel.
Patent KR-20110020283-A (KR)
Title: Baton with gradually increasing outer diameter
Inventor: OH JI HWAN
IPC: F41B15/02
Filed: 2011-01-14
Abstract: PURPOSE: A telescopic suppression bar having the outer diameter enlarged gradually is provided to apply big impact to people, since the external diameter thereof is gradually enlarged. CONSTITUTION: A telescopic suppression bar having the outer diameter enlarged gradually comprises a base bar(12), a multiple-stage forming unit(10), an outermost rod(18), and an end stopper. The base bar is combined with a handle(1). The multiple-stage forming unit is comprised of one or more rods(14,16). The inner diameter of the center of the outer rod is enlarged than the outer diameter of the center of the inner rod. The inner rod is accepted inside the outer rod. The expanded external diameter of the inner rod is larger than the reduced inner diameter of the outer rod. The expanded external diameter of the inner rod hangs on the reduced inner diameter of the outer rod. The end stopper is coupled with one end of the outermost rod.
Patent KR-20120082735-A (KR)
Title: Antenna using hilbert curve slot
Inventor: KIM CHE YOUNG
IPC: H01Q13/08
Filed: 2011-01-14
Abstract: PURPOSE: An antenna using a Hilbert curve slot is provided to insert many lines into a small area by using a third Hilbert curve slot as a filtering device. CONSTITUTION: A Hilbert curve antenna(2000) comprises a dielectric substrate(2100), a light emitting unit(2200), a feeding unit(2300), and a Hilbert curve slot(2400). The light emitting unit, the feeding unit, and the Hilbert curve slot are formed on the dielectric substrate. The feeding unit includes two earths and a power feeding center(2310) located between the earths. The feeding unit supplies electro magnetic energy to the light emitting unit. The light emitting unit receives and transmits electric waves. The Hilbert curve slot filters the electric waves of a specific frequency band.
Patent KR-20110105697-A (KR)
Inventor: KIM JONG IN
IPC: F03G3/00
Filed: 2011-01-19
Abstract: 본 발명은 중력과 부력을 이용한 발전장치에 관한 것으로, 더욱 상세히는 직경 방향으로 절단한 단면이 이격한 두 원인 원환체이며 상기 직경 방향에 따른 양단부에 각각 대향되게 채워진 물을 가두는 격벽이 각각 내장된 중공인 회전부와, 상기 회전부의 형성 방향을 따라 상기 회전부의 외면 일부를 감싸며 상기 회전부의 외면과 접촉되게 내부에 물이 수용되는 원호 형상의 지지 튜브와, 상기 지지 튜브의 양단부에 각각 장착되어 상기 회전부의 외면과 접촉되며 상기 회전부의 회전을 허용하면서 상기 지지 튜브 내부의 물이 지지 튜브 외측으로 누설되는 것을 방지하는 실링부재를 포함하며, 상기 회전부 일측에 수용된 물을 가두는 격벽과 상기 회전부 타측에 수용된 물을 가두는 격벽은 각각 평행을 이루고, 상기 각각의 격벽으로 가둬진 물의 체적은 상기 지지 튜브의 내부 체적에 포함된다.
Patent KR-20120090599-A (KR)
Title: Apparatus for charging a weapon and weapon assembly
Inventor: LEE JONG WON
IPC: F41A9/49
Filed: 2011-02-08
Abstract: PURPOSE: An automatic charging device and a firearm assembly are provided to charges a firearm without trouble by returning the charging lever of the firearm to the front side automatically. CONSTITUTION: An automatic charging device(2) comprises a frame(200), a first pulley(300), a first wire(500), and an actuating unit(400). The frame is coupled with a firearm(100) and a charging lever(110) is moved back and forth. The first pulley is coupled with the frame and located in the rear side of an operating area of the operation region of the charging lever when the frame is coupled to the firearm. The firs wire connects the first pullet and the charging lever. The first wire moves back the charging lever by rotating the first pulley to a first direction while the frame coupled with the firearm. The actuating unit rotates the first pulley.