baber/WOPTO huggingface dataset:
Patent KR-20100036159-A (KR)
Title: Device for supplying ink to ink-jet printer and apparatus for preventing ink from backward flowing
Inventor: TAMAKI KAZUTAKA
IPC: B41J2/175
Filed: 2009-04-16
Abstract: PURPOSE: An ink supplying device and a backflow prevention device of an inkjet printer are provided to securely prevent ink from flowing backward when the ink flows in a gas passage. CONSTITUTION: An ink supplying device and a backflow prevention device of an inkjet printer comprises a sub tank(120) and a backflow prevention unit(200). A line(177), used as a gas passage, connects a pressure control unit with the sub tank, and controls internal pressure of the sub tank. The backflow prevention unit is installed in the line. When ink stored in the sub tank flows into the line, the backflow prevention unit prevents the ink from flowing into the pressure control unit by closing the line.
Patent KR-20090110266-A (KR)
Title: Light-emitting device and manufacturing method thereof
IPC: H01L21/336
Filed: 2009-04-17
Abstract: PURPOSE: A light emitting device and a manufacturing method thereof are provided to reduce the number of processes according to manufacture of a thin film transistor while keeping an electric feature. CONSTITUTION: A light emitting device includes a gate electrode layer, the first insulating film, a semiconductor layer, an impurity semiconductor film, a conductive film, the second insulating film, the first pixel electrode layers(132A,132B), the third insulating film, an EL layer and a cavity. The gate electrode layer is formed on an insulating surface. The first insulating film is formed on the gate electrode layer. The semiconductor layer is formed on the first insulating film. The impurity semiconductor film is formed on the semiconductor layer. The conductive film is formed on the impurity semiconductor film.
Patent KR-20100116046-A (KR)
Inventor: KIM IK HEE
IPC: C23C8/26
Filed: 2009-04-21
Abstract: PURPOSE: A method for nitriding a steel sheet for a chassis reinforcement is provided to nitride a hot-rolled steel sheet at low speed into dense organization, thereby improving the tensile strength and hardness. CONSTITUTION: A method for nitriding a steel sheet for a chassis reinforcement(2) comprises steps of: removing an oxide passivation film from a hot rolled steel sheet, putting the steel sheet in a furnace to be preheated, nitriding the steel sheet at low temperature in the atmosphere of ammonia, nitrogen, and carbon dioxide, and drawing out the nitrided steel sheet and quenching it.
Patent KR-20100117182-A (KR)
Title: Fruit protective packing vessel
Inventor: KIM BYUNG KU
IPC: B65D81/03
Filed: 2009-04-24
Abstract: PURPOSE: A fruit protection packing container is provided to enable a packed state to be very stable, thereby improving the value of the product with more graceful and perfect package. CONSTITUTION: A fruit protection packing container formed a semi circle shape fruit placing body(100) which upper side is opened and lower side is inserted to settled the fruit directly by using synthetic resin foam. A capture side(200) which covers the outer surface of the fruit and its center part is up-curved to protrude convexly and is extended to a plurality of number in petal shape is formed. The upward cured surface of the capture side extends the fruit placing body to the lower part of the inside surface. The extension part is comprised as a convex extension unit(210) which is popped up convexly to the inside more than inner surface of the fruit placing body.
Patent KR-20100118039-A (KR)
Inventor: KIM MIN HYO
IPC: G06F3/02
Filed: 2009-04-27
Abstract: PURPOSE: A keyboard with a remote control function is provided to enable a user to watch a TV program conveniently by including TV function buttons. CONSTITUTION: A menu button, a volume button and an external input button(1-4) are prepared on a right end portion of a keyboard. When a user watches a TV through a computer monitor, the user is able to use a remote control function by using those buttons.
Patent KR-20100121753-A (KR)
Title: Electromagnet water supply valve
Inventor: RO GWAN HO
IPC: F16L37/08
Filed: 2009-05-11
Abstract: PURPOSE: An electromagnet water supply valve is provided to block water leakage due to mis-assembly of hoses and prevent the separation of the hoses. CONSTITUTION: An electromagnet water supply valve comprises a body, having a water inlet and a water outlet, and a valve chest. The valve chest comprises a valve seat opened and closed by a valve driven with electromagnet. A lock ring of a hose connection structure(30) is inserted into a water inlet and a water outlet. Inner and outer splitters are installed between a fixing unit and an opening unit. A sealing element for preventing water leakage of a hose is interposed between the inner and outer splitters. A push pin is integrated with the inner splitter.
Patent KR-20090121222-A (KR)
Title: Forming method and device for conductive pattern and substrate with conductive pattern
Inventor: HOJO MIKIKO
IPC: H01L21/027
Filed: 2009-05-19
Abstract: PURPOSE: A forming method and a device for conductive pattern and a substrate with a conductive pattern are provided to form a conductive pattern by using a dispersion of a metal particle and a metal compound particle and sintering lithography with plasma. CONSTITUTION: A forming method and a device for conductive pattern and a substrate with a conductive pattern are comprised of the steps: lithographing a pattern on a non-conductive material by using particle dispersion diffusing a particle; forming a conductive pattern by sintering a particle of a pattern; supplying a microwave energy from a viewing window(14) of a process chamber(11) consisting of a low pressure chamber in sintering; and exposing the lithography pattern to microwave surface wave plasma in which electron density is high and electron temperature is low and sintering the particle of pattern.
Patent KR-20100032288-A (KR)
Title: Hot water boiler
Inventor: CHOE KI CHEL
IPC: F24H1/10
Filed: 2009-06-03
Abstract: PURPOSE: A hot water boiler is provided to reduce the manufacturing cost due to the small volume and simplified structure. CONSTITUTION: A hot water boiler(100) comprises a water tank(110), an immersed heating pipe(120) which is vertically immersed in the water tank to allow circulating water in the water tank to be entered into, carried through and discharged from the immersed heating pipe, a metal pipe heater unit assembly(130) which heats the circulating water flowing through the space with the immersion heating tube, a plate type heat exchange unit(150) which transfers heat to hot water while the circulating water flows, and a circulating pump(160) which is installed in the cycle of the circulating water in order to give a feed force.
Patent KR-20100132118-A (KR)
Title: Solar collecting apparatus
Inventor: YOON JOO SIK
IPC: H01L31/054
Filed: 2009-06-09
Abstract: PURPOSE: An auxiliary solar light collecting apparatus is provided to prevent the damage of main light collecting panels by forming a longitudinal opening part at the center part of the main light collecting panels. CONSTITUTION: A second rotary shaft is installed to an east-west direction and rotates to a south-north direction. A first rotary shaft(200) crosses the second rotary shaft and rotates to an east-west direction. A first main light collecting panel(101) and a second main light collecting panel(102) are installed on a frame(110). Opening parts(130) are formed at the center part of the main light collecting panels. A first auxiliary light collecting panel(1101) and a second auxiliary light collecting panel(1102) are installed to a frame(1110).
Patent KR-20100132119-A (KR)
Title: Light emitting device
Inventor: CHA MUN KIL
IPC: F21S2/00
Filed: 2009-06-09
Abstract: PURPOSE: A light emitting device is provided to radiate the light from a light emitting device to the outside of a case by forming a diffusion unit in the case. CONSTITUTION: A case unit(2) has a coupling space(21) of a hollow shape. A circuit frame fixing unit(3) is installed in the coupling space of the case unit. A plate type wiring substrate(4) is fixed to the circuit frame fixing unit. The light diffusion unit(22) is arranged on the wiring substrate to diffuse the light form the light emitting device. The light diffusion unit is comprised of a plurality of the light emitting device.
Patent KR-20100134451-A (KR)
Title: Method of fabricating metal interconnection layer in semiconductor device
Inventor: KIM JONG IN
IPC: H01L21/28
Filed: 2009-06-15
Abstract: PURPOSE: The forming method of metal wiring film of the semiconductor device forms the support insulating layer pattern of the width biging than the trench width of the insulating layer in which the metal wiring film pattern is arranged on the top portion of dielectric layer. CONSTITUTION: The insulating layer(220) is formed on the semiconductor substrate(210). The trench(224) of the constant depth is formed in the upper certain area of the insulating layer. The trench inside crowds with the metal wiring film pattern(232). The support insulating layer pattern(302) is formed on the top of the insulating layer.
Patent KR-20100134452-A (KR)
Title: Method of optical proximity correction for wafer pattern
Inventor: SHIN HYE JIN
IPC: H01L21/027
Filed: 2009-06-15
Abstract: PURPOSE: By using the formed modeling based on the average contour, the optical proximity correction method about the wafer pattern is proceed the optical proximity correction. CONSTITUTION: The layout pattern is kiled in action in wafer and the wafer pattern is formed(110). Image data about the wafer pattern is extracted(120). Image data and layout pattern are overlapped(130). In the overlapped image data as described above, the average deviation value of the layout pattern and image data is calculated(140).
Patent KR-20100136324-A (KR)
Title: System and method for settling mobile phone by multiple code creation mode's otp authentication with index exchange and recording medium
Inventor: KIM JAE HYUNG
IPC: H04W12/06
Filed: 2009-06-18
Abstract: PURPOSE: A system and a method for settling mobile phone by multiple code creation mode's OTP(One Time Password) authentication with index exchange and a recording medium thereof are provided to prevent the inappropriate approval of a mobile phone payment by authenticating whether or not a mobile phone is a valid OTP medium whenever an OTP is generated. CONSTITUTION: A mobile phone payment unit is selected(700) and a server allows a mobile phone payment interface to be provided(705). The server confirms whether or not the mobile phone number and the residence registration number information are received through the mobile phone payment interface(710). The server receives and reads out the user authentication results to authenticate a user who requests small-sum mobile phone payment.
Patent KR-20100002153-A (KR)
Title: Novel organic electroluminescent compounds and organic electroluminescent device using the same
Inventor: KIM CHI SIK
IPC: H05B33/10
Filed: 2009-06-23
Abstract: PURPOSE: An organic electroluminescent compound is provided to ensure excellent luminous efficiency, lifetime property of materials, and proper color coordinate and to obtain an organic electroluminescent device with good driving durability. CONSTITUTION: An organic electroluminescent compound has a compound represented by chemical formula 1. In chemical formula 1, A and B are a saturated 5-membered or 6-membered heterocyclic amino group, a substituent selected from functional groups represented by chemical formulas 1-a, 1-b, 1-c, and 1-d, wherein the saturated 5-membered or 6-membered heterocyclic amino group may contain one or more hetero atoms selected from NR36, O or S; a and b are an integer of 0-4.
Patent KR-20090080025-A (KR)
Title: Vibration toothbrush
Inventor: KIM HAN SIK
IPC: A46B15/00
Filed: 2009-06-26
Abstract: An electric toothbrush is provided to improve the economical efficiency by using a cheap dry cell and by exchanging the entire electric toothbrush in case of the abrasion of brush. An electric toothbrush is prepared by the first and second molding processes. A toothbrush head(10) provided with toothbrush implantation holes(11), a toothbrush neck part(12), a toothbrush handle(13), a double injection connection part(14), a battery unit configuration space(20), a switch configuration space(19), a vibration module unit frame(15) and a vibration module end terminal(16) are formed by the first molding process. A vibrating motor configuration space(18), a switch configuration space and a battery unit configuration space whose one side is opened are formed by the second molding process. A molding center projection(17) is formed at the various positions of the vibration module unit frame.
Patent KR-20110003016-A (KR)
Title: Laundry machine and laundry method of using the same
Inventor: PARK EUN JIN
IPC: D06F39/00
Filed: 2009-07-03
Abstract: PURPOSE: A laundry machine and a laundry method using the same are provided to enable a user to easily establish a reserving time since the user can establish the reserving time based on current time. CONSTITUTION: A laundry machine(100) comprises a case, a tub(30), a drum(50), a driving unit(70) and a controller(60). The tub is installed in the case. The drum pivotally is prepared in the tub. The driving unit rotates the drum. The controller performs a washing course so that a standby time is maintained in the middle of the washing course according to the reserved start and finish times.
Patent KR-20110003785-A (KR)
Title: Apparatus for dipping flux
Inventor: KANG KOU HO
IPC: B23K3/08
Filed: 2009-07-06
Abstract: PURPOSE: A flux dipping apparatus is provided to easily change the clearance in the bottom of a flux storage and the lower part of a squeegee without an additional tool or gauge. CONSTITUTION: A flux storage has an open top. The flux storage stores flux in inside. A squeegee fixture locates in lower part of the flux storage. A squeegee body(310) is detachable from the squeegee fixture and has a squeegee. The squeegee(311) maintains a certain space from the bottom of flux.
Patent KR-20110004637-A (KR)
Title: Apparatus for sizing the housing of a catalytic converter
Inventor: CHOI DONG OK
IPC: F01N3/28
Filed: 2009-07-08
Abstract: PURPOSE: A sizing device of a housing for a catalytic converter is provided to extend service life and to reduce manufacturing costs by reducing the load capacity of a servo system. CONSTITUTION: A sizing device of a housing for a catalytic converter comprises top and bottom die assemblies(10,20). The top die assembly is transferred to top and bottom by the oil-hydraulic circuit. An upper die(13) of the top die assembly has a tapered surface on an inner diameter. The bottom die assembly is up and down moved with the servo system.
Patent KR-20100010024-A (KR)
Title: 포인트를 이용한 문화 예술 투자 또는 기부 서비스 방법 및 그 시스템
Inventor: NO KYUNG NAM
IPC: G06Q30/00
Filed: 2009-07-20
Abstract: 본 발명은 포인트를 이용한 문화 예술 투자 또는 기부 서비스 방법 및 그 시스템과 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체에 관한 것으로, 회원(고객)이 소비활동에 따라 부가적으로 취득하게 되는 포인트를 문화 예술 사업에 투자 또는 기부하도록 하고, 부가적으로 광고를 시청 또는 청취하거나 광고 목적의 미션을 수행하여 포인트를 적립하여 문화 예술 사업에 투자 또는 기부하도록 함으로써, 문화 예술 사업 발전을 도모하기 위한, 포인트를 이용한 문화 예술 투자 또는 기부 서비스 방법 및 그 시스템과 상기 방법을 실현시키기 위한 프로그램을 기록한 컴퓨터로 읽을 수 있는 기록매체를 제공하고자 한다. 
     이를 위하여, 본 발명은 포인트를 이용한 투자 서비스 방법에 있어서, 상기 포인트를 투자를 위한 투자 포인트로 전환(또는 환전)하여 적립하는 투자 포인트 적립 단계; 투자 신청서에 대하여 투자 여부를 평가하는 투자 평가 단계; 상기 투자 평가 단계의 평가 결과에 따라 상기 적립된 투자 포인트의 투자를 결정하는 투자 결정 단계; 및 상기 적립된 투자 포인트의 투자로 인한 이익을 투자자에게 분배하는 이익 분배 단계를 포함한다. 
       
     문화 예술, 포인트, 마일리지, 사이버 머니, 후원, 기부, 광고
Patent KR-20110009279-A (KR)
Title: Sheave for transmission cable
Inventor: AN SUNG IN
IPC: H02G7/00
Filed: 2009-07-22
Abstract: PURPOSE: A sheave for a transmission cable is provided to improve the quality and durability of a cable by preventing the cable and a wire from being excessively twisted or loosened during a twisted cable is installed. CONSTITUTION: A flat type outer support frame(100) has a smooth curve and is long lengthened. A first guide roller(200) is rotatably combined with the central inner surface of the outer support frame. A second guide roller(300) is rotatably combined with the front and rear inner surface of the outer support frame. An inner support frame is rotatably combined with the first guide roller on the same axis. A third guide roller(500) is rotatably combined with the front and rear inner surface of the inner support frame.
Patent KR-20110010410-A (KR)
Title: Array substrate for chip on glass type liquid crystal display device and method of fabricating the same
Inventor: KIM HWAN
IPC: G02F1/1345
Filed: 2009-07-24
Abstract: PURPOSE: An array substrate for chip on a glass type liquid crystal display device and a method of fabricating the same are provided to prevent the wavy noise and reduce the off current within a thin film transistor. CONSTITUTION: A switching thin film transistor(STr) includes a source and drain electrode, and the end portion of the source and drain electrode completely covers the lateral side of the end portion of an active layer and an ohmic contact layer. A gate wiring(105) and a data wiring cross each other between the wirings and the gate insulating layer. First and second driving thin film transistors have identical stack structure to the switching thin film transistor at a driving region. The electrodes of the first and second thin film transistors are connected to each other.
Patent KR-20110014786-A (KR)
Title: The thermoelectric device having improved thermoelectric efficiency and manufacturing method thereof
Inventor: PARK YOUNG SAM
IPC: H01L35/02
Filed: 2009-08-06
Abstract: PURPOSE: A thermoelectric device having improved thermoelectric efficiency and manufacturing a method thereof are provided to increase thermoelectric efficiency by using a thermal insulating film having low thermoelectric efficiency. CONSTITUTION: A heat absorbing film(230) is formed on a substrate(210) and absorbs an outer heat source. A leg(240) transfers the heat absorbed through the heat absorbing film to the heat radiation film. A heat radiation film(250) emits the heat which it is transmitted from the leg to outside. Thermal isolation films(220,260) reduce the heat transfer rate at the leg. The thermal isolation film is formed in at least one of the leg lower part and upper part.
Patent KR-20110015742-A (KR)
Title: Method for power supply using usb interface and portable terminal using the same
Inventor: RHEE BONG JAE
IPC: H04B1/38
Filed: 2009-08-10
Abstract: PURPOSE: A method for supplying power using a USB interface and a portable terminal using the same are provided to supply power of the portable terminal through a USB interface unit when a battery is not mounted on the portable terminal. CONSTITUTION: A portable terminal includes a USB interface unit(150) and external power supply circuits(110,130,140,160). The USB interface unit receives external power through an identification terminal for identifying an external device. The external power supply circuit supplies external power to a power terminal when a battery is not mounted on the portable terminal. The external power supply circuit provides a booting signal to the portable terminal. Power for operating the portable terminal is inputted to the power terminal.
Patent KR-20110018117-A (KR)
Inventor: LEE WON DAE
IPC: G06F1/00
Filed: 2009-08-17
Abstract: 본 발명은 컴퓨터 케이스 및 이의 조립 방법에 관한 것으로, 바닥부와, 상기 바닥부의 상측 모서리 영역에 고정된 다수의 조립 프로파일과, 상기 조립 프로파일들 사이에 각기 끼워 맞춤 형태로 조립되어 수납 공간을 형성하는 다수의 측면부 및 상기 수납 공간을 커버하기 위해 상기 상기 조립 프로파일들 상측에 고정된 상측 커버부를 포함하는 컴퓨터 케이스 및 이의 조립 방법을 제공한다. 이와 같이 모서리에 위치한 프로파일에 측벽면을 끼워 맞춤 방식으로 삽입 장착하여 케이스의 측면을 형성함으로 인해 조립에 사용되는 결합 또는 고정 부재의 사용을 최소화할 수 있다.  
       
     컴퓨터, 케이스, 조립 프로파일, 조립, 분해, 튜닝 용이
Patent KR-20110019893-A (KR)
Title: Plane heater having antistatic layer
Inventor: KANG SEONG MIN
IPC: H05B3/20
Filed: 2009-08-21
Abstract: PURPOSE: A plane heater is provided to shield an induced current due to static electricity and electric filed by forming an antistatic layer on the upper and lower sides of a heating module. CONSTITUTION: A heating module(20) generates heat by electricity. An electrode(10) supplies electricity to the heating module. An insulator(30) surrounds the heating module and the electrode. An antistatic film(40) is laminated on the outer side of the insulator. A heating sheet, a liquid carbon paste, a carbon fiber nonwoven fabric, and a carbon fiber fabric are used as a heating module.
Patent KR-20110020457-A (KR)
Title: Forming method for matal wiring of semiconductor device
Inventor: LEE CHANG HEE
IPC: H01L21/318
Filed: 2009-08-24
Abstract: PURPOSE: A forming method for a metal wiring of a semiconductor device is provided to remove a metal wiring fault by depositing a reflection barrier layer on the metal wiring without inserting nitrogen. CONSTITUTION: In a forming method for a metal wiring of a semiconductor device, a first metal layer(110) is formed on the top of a wafer(100). An inter-layer insulating film(120) is formed on the top of the first metal layer. A second metal layer(140) is formed on the top of the inter-layer insulating film. The first reflection barrier(210) is formed by inserting argon gas to the upper part of the second metal layer. A second reflection barrier(220) is formed by inserting argon gas and nitrogen gas into the upper part of the first reflection barrier at the same time.
Patent KR-20110021167-A (KR)
Title: Fabric treating apparatus and fabric treating system
Inventor: HONG SOG KIE
IPC: D06F58/10
Filed: 2009-08-25
Abstract: PURPOSE: A fabric treating apparatus and a fabric treating system are provided to absorb the cloth cradled between a base portion and a press unit to the base portion or the press unit. CONSTITUTION: A clothing processing apparatus comprises a cabinet(11), base units(110,120), a press unit(140) and a ventilation unit. The base unit is received at the cabinet, and cloth is cradled at the base unit. The press unit is connected to the base unit and allows the rotation thereof. The press unit covers the cradled cloth. The ventilation unit is installed at the base unit and/or the press unit.
Patent KR-20110023230-A (KR)
Title: 주름관 사출성형장치 및 방법
Inventor: YOON SUK KWAN
IPC: B29C45/43
Filed: 2009-08-31
Abstract: 본 발명은, 성형공간으로 원료를 주입하도록 원료주입구가 형성된 상부원판이 구비되고, 상기 상부원판의 하부에 복수개의 코어가 구비되며, 상기 코어를 중심으로 외측으로 경사지게 형성되어 하부금형의 수평이동을 유도하는 유도봉이 구비되는 상부금형과; 상기 상부금형의 승,하강 작동시 유도봉에 유도되어 수평이동하도록 슬라이드공이 형성된 한 쌍의 하부금형과; 상기 상부금형의 유도봉을 수용하면서 하부금형을 지지하도록 수용공이 형성된 지지부재가 구비되고, 상기 지지부재의 중앙에 주름관을 지지하는 지지코어가 구비되는 지지부와; 상기 지지부와 주름관탈형부에 연통되도록 관통되어 압축공기를 주름관으로 공급하는 공기공급부와; 상기 공기공급부의 압축공기공급으로 이격된 주름관을 상부로 타격하여 주름관을 지지코어에서 탈형시키는 주름관탈형부가 구성되는 주름관 사출성형장치에 관한 것이다. 
     본 발명 주름관 사출성형장치 및 방법에 의하면, 상,하부금형을 주름관에서 이탈시킨 상태에서 공기공급부를 통해 주입된 압축공기에 의해 주름관이 지지코어로부터 이격되면 밀핀으로 상승타격하여 주름관을 성형하므로 불량률을 줄여 품질향상을 도모함은 물론 제품생산성을 향상시키고, 성형공간에서 성형된 주름관이 일정한 두께를 유지하므로 별도의 후공정없이 특정분야에 바로 사용할 수 있어 소비자로 하여금 제품의 신뢰성이 향상될 뿐만 아니라 시장경쟁력이 향상되는 것이다. 
       
     주름관, 상부금형, 하부금형, 공기공급,
Patent KR-20110023945-A (KR)
Title: 야구 타격 연습기
Inventor: CHOE BOK KYUN
IPC: A63B69/40
Filed: 2009-09-01
Abstract: 본 발명은 타자에게 공을 자동 간헐적으로 던져 타자 혼자서도 타격 연습을 실시할 수 있는 야구 타격 연습기를 개시한다. 본 발명은 프레임, 슈트, 발사대, 작동대, 모터, 전동기구, 코일스프링과 타격망으로 구성된다. 슈트는 프레임에 경사지게 장착되어 있고, 복수의 공들을 수용하여 하나씩 순차적으로 공급하기 위한 공급통로를 갖는다. 발사대는 슈트로부터 공들을 하나씩 인수하여 발사를 유도하기 위하여 프레임에 장착되어 있으며, 공들의 발사를 유도하는 발사통로를 가지고, 발사통로에 공들 중 하나의 공을 슈트로부터 인수하기 위한 대기위치와 하나의 공을 발사하기 위한 발사위치가 각각 제공되어 있다. 작동대는 대기위치로부터 발사위치로 하나의 공을 운반하여 발사하기 위하여 발사통로를 따라 운동하도록 장착되어 있다. 모터는 작동대의 운동을 위한 구동력을 제공하도록 프레임에 장착되어 있다. 전동기구는 모터의 구동력을 작동대에 단속적으로 전달하고, 코일스프링은 작동대가 대기위치로부터 발사위치로 운동되도록 탄성력을 제공한다. 타격망은 프레임의 일측에 타자가 타격한 공을 막기 위하여 설치되어 있다. 본 발명에 의하면, 타자에게 공을 토스배팅 방식으로 던져 타자 혼자서도 타격 연습을 효율적으로 실시할 수 있고, 타자가 타격한 공을 타격망에 의하여 안전하게 회수하여 타격 연습에 다시 사용할 수 있는 효과가 있다.