baber/WOPTO huggingface dataset:
Patent KR-20220166522-A (KR)
Title: Corner module of drive axle
Inventor: JEONG CHANG HEE
IPC: F16D3/84
Filed: 2021-06-10
Abstract: The present invention relates to a corner module of a drive axle which reduces drag torque by removing a bearing inner seal of a wheel bearing and reduces frictional noise generated from a wrinkled portion of a boot. The introduced corner module of the drive axle comprises: a wheel bearing assembled to a wheel housing; a knuckle fixed to an outer ring of the wheel bearing; the boot in which a large diameter unit of one end is assembled to the knuckle; and a bearing seal unit assembled between a small diameter unit of the other end of the boot and the drive axle to prevent inflow of a foreign substance while limiting rotation of the boot.
Patent KR-20220168040-A (KR)
Title: Skin external application composition for improving seborrheic dematitis
Inventor: LIM SEUNG EUN
IPC: A61Q5/00
Filed: 2021-06-15
Abstract: The present invention relates to a skin external application composition for alleviating seborrheic dermatitis which contains a Rudbeckia bicolor extract as an active ingredient, and more specifically, to a skin external application composition for alleviating seborrheic dermatitis which prevents seborrheic dermatitis and which does not cause side effects even when used for a long time. 0.001 to 10 wt% of the Rudbeckia bicolor extract is included based on the total weight of the composition.
Patent KR-20210156798-A (KR)
Inventor: JEONG SO MI
IPC: H01M50/403
Filed: 2021-06-18
Abstract: The present invention relates to a method for manufacturing a separator for a lithium secondary battery. More specifically, the method comprises the following steps: preparing a slurry for forming a porous coating layer, in which inorganic particles are dispersed in an asymmetric linear ketone solvent and a binder polymer including a first binder polymer and a second binder polymer is dissolved; and applying and drying the slurry for forming the porous coating layer on a porous polymer substrate having a plurality of pores. According to one embodiment of the present invention, a slurry for forming a porous coating layer is prepared by dissolving a first binder polymer and second binder polymer having predetermined characteristics in an asymmetric linear ketone solvent and a separator can be manufactured by using slurry. Accordingly, adhesion with an electrode (Lami Strength) can be increased and compression resistance of a separator can be increased.
Patent KR-20230000663-A (KR)
Title: Method for providing customized education module
Inventor: EOM EUN SANG
IPC: G06N3/08
Filed: 2021-06-25
Abstract: The present invention relates to a user-customized learning module providing method. Specifically, the present invention relates to the user-customized learning module providing method may provide user-customized education using user data and survey data including fields of interest and career fields previously received from users.
Patent KR-20220004574-A (KR)
Title: System and method for Connection of ontology and financial DB using mapping table
Inventor: JEOUNG KI OOK
IPC: G06Q40/00
Filed: 2021-07-01
Abstract: The present invention provides a system and method for interworking an ontology and a financial DB using a mapping table. The system comprises: an ontology DB that divides laws or regulations expressed in natural language into ontology elements through morphological analysis, then converts the same into ontology codes (OWL codes; hereafter referred to as ontology codes) and stores the same; a table creation module for generating a mapping request table by mapping an ontology code for each one or more items included in the table form information when the table form information is received from the client; and a report receiving module for transmitting the mapping request table generated through the table generating module to a financial company server, receiving report data corresponding to the mapping request table from the financial company server, and storing the received report data in a report DB. According to the present invention, natural language processing using deep learning such as morphological analysis of laws and regulations subject to concept verification is performed. The foundation has been laid for efficient resource use with the effect of reducing the time that can be processed in a shorter time than manual work. By using ontology, we have completed the distribution consistency and effective machine-executable regulation structure when laws and regulations are changed.
Patent KR-20230006694-A (KR)
Title: Method of treating substrate and substrate treating apparatus performing the same
Inventor: SEO JUNG HAN
IPC: H01J37/32
Filed: 2021-07-01
Abstract: A substrate processing method may comprise: a step of positioning a mask assembly comprising a mask sheet defining at least one opening part and a mask frame fixing the mask sheet on a substrate positioned in an inner space of a process chamber; a step of supplying a process gas of a plasma state as the substrate; a step of detecting an electrical signal of the mask assembly; and a step of determining whether or not arcing occurs of the mask assembly based on the detected electrical signal. Therefore, the present invention is capable of precisely detecting arcing.
Patent KR-20210087419-A (KR)
Title: Method for determining target company to be invested regarding a topic of interest and apparatus thereof
Inventor: AHN TAE WOOK
IPC: G06Q10/06
Filed: 2021-07-02
Abstract: The present invention relates to a method for determining an investment target company regarding a topic of interest. The method includes: a step of acquiring an essential keyword and a secondary keyword related to the topic of interest; a step of giving a first relevance score to an investment candidate company related to the essential keyword based on the result of searching an investment candidate company-related document set with the essential keyword; a step of giving a second relevance score to an investment candidate company related to the secondary keyword based on the result of searching the document set in part or in whole with the secondary keyword; and a step of determining at least one investment target company related to the topic of interest based on the relevance score given to the investment candidate company. At this time, an investment candidate company related to the secondary keyword and not related to the essential keyword can be excluded from the investment target companies.
Patent KR-20230007900-A (KR)
Title: dental prosthesis design bridge service platform and a control method of the same
Inventor: PARK HYUN SOO
IPC: G06T17/00
Filed: 2021-07-06
Abstract: The present invention relates to a platform for brokering between a client and designer and a control method thereof, and more specifically, to a platform that brokers between a client who requests a prosthetic design and a designer who designs a prosthesis, and a control method thereof. To this end, according to one embodiment of the present invention, provided are the prosthetic design brokerage platform and the control method thereof, wherein a client who requests a dental prosthetic design and a designer who designs a dental prosthesis are each connected to the platform which brokers between the client and designer. The control method of the dental prosthetic design brokerage platform according to one embodiment of the present invention comprises: a creation step of providing a project creation module to a client, receiving project information, and creating a project; and a waiting step of providing a project finding module to a designer and receiving designer application information to participate in the project.
Patent KR-20230008431-A (KR)
Title: Method and apparatus for performing conditional daps handover in mobile communication system
Inventor: KIM SANGBUM
IPC: H04W36/08
Filed: 2021-07-07
Abstract: The present disclosure relates to a method and an apparatus for performing a conditional DAPS handover in a mobile communication system. According to an embodiment of the present disclosure, a handover method in a mobile communication system, which is performed in a terminal, comprises the steps of: receiving setting information from a source base station that supports a conditional dual active protocol stack (DAPS) handover of the terminal; confirming a first target cell that satisfies a handover condition on the basis of the setting information; and performing the DAPS handover with the first target cell, wherein the DAPS handover maintains data transmission/reception between the terminal and the source base station during the handover.
Patent KR-20230010958-A (KR)
Title: Connection Structure for Coolant of Vehicle
Inventor: LEE YOON HYUNG
IPC: F01P11/04
Filed: 2021-07-13
Abstract: The present invention relates to a coolant connection structure for a vehicle. According to an embodiment of the present invention, the coolant connection structure for a vehicle includes an upper body fastened to the upper end of a vehicle, a lower body positioned at the lower end of the upper body, a floor panel formed between the upper body and the lower body, and a plurality of joint modules located on the floor panel and configured to be fluidly connected to a cooling water tank located in the lower body. The coolant connection structure for a vehicle can prevent the leakage of coolant when upper and lower bodies of a vehicle are separated from each other.
Patent KR-20230012940-A (KR)
Title: Rotary motion device using eccentric gravity by cam and double crank module
Inventor: RYU UK HYUN
IPC: F16H21/18
Filed: 2021-07-16
Abstract: The present invention relates to a rotary motion device using eccentric gravity by a cam and a double crank module. The rotary motion device comprises: a main shaft (10); a main wheel (20); multiple shafts (30); multiple wheels (40); first and second weight plates (50, 50'); a crank module (60); and a booster module (70). The rotary motion device has an improved structure in which as the first and second weight plates reciprocate linearly in the same direction by a pair of crank modules, the operating force of the booster module is added to the linear reciprocating transfer force of the first and second weight plates, and the load pin of one crank module is guided by an "8"-shaped cam rail, so that movement in the direction in which the operating force of the booster module acts can be prevented. Therefore, as attraction and repulsion force due to the booster module is accurately transmitted to the first and second weight plates, an eccentric load acting around the rotating axis of the main wheel can be converted into the rotary motion force of the main wheel and transmitted.
Patent KR-20230013826-A (KR)
Inventor: LEE HUI SUNG
IPC: G10L15/26
Filed: 2021-07-20
Abstract: The present invention relates to a method for providing a voice recognition service by using an artificial intelligence (AI) model and an electronic device performing the same. The method for allowing the electronic device to provide a voice recognition service by using an AI model according one embodiment of the present invention comprises the steps of: acquiring an audio signal including a user voice signal; preprocessing the acquired audio signal; inputting the pre-processed audio signal to an AI model that outputs a string corresponding to the voice signal when the pre-processed audio signal is inputted to acquire a string corresponding to the voice signal; determining the level of confidence for the string, based on information on accuracy of the string acquired by the AI model; and outputting the string along with the level of confidence.
Patent KR-20230014466-A (KR)
Inventor: LEE HAK KYO
IPC: G06Q40/04
Filed: 2021-07-21
Abstract: The present invention relates to a greenhouse gas reduction method and system using livestock genome information. The method according to an embodiment of the present invention is a method for molecular breeding to reduce the carbon footprint of a population and comprises the steps of: acquiring genomic information on each individual of a reference population; setting meat production quantities, which is inversely proportional to carbon emissions per weight, as carbon emission-related traits for each individual, and then estimating breeding values of the carbon emission-related traits for each individual based on the genome information; and selecting, among the breeding values, individuals having a breeding value higher than a reference ratio as breeding targets.
Patent KR-20230014476-A (KR)
Title: Labeler's history management system
Inventor: CHOI HYUK
IPC: G06Q10/06
Filed: 2021-07-21
Abstract: The present invention relates to a labeler history management system, which monitors the operating state of a labeler for labeling the wrapping paper, records and manages information related to the manipulation history of a field driver manipulating the labeler, and creates a report of the manipulation history information. The labeler history management system according to the present invention comprises: a monitoring unit for monitoring the operating state of the labeler for labeling the wrapping paper; and a manipulation history management unit for recording and managing the manipulation history information related to the manipulation of a field driver among information on the operation state of the labeler monitored by the monitoring unit.
Patent KR-20230015197-A (KR)
Title: Method for controlling optical cable measuring instrument
Inventor: SANG WOO LEE
IPC: H04B10/071
Filed: 2021-07-22
Abstract: The present invention relates to a control method of an optical cable measurement instrument which can easily measure even irregular faults occurring intermittently other than power level measurement and regular faults when measuring a power level or a fault occurring point by using an optical cable measurement instrument. According to the present invention, the control method of an optical cable measurement instrument comprises: a step (a) of periodically receiving real-time measurements of an optical time domain reflectometer (OTDR) or a live fault test (LFT) measurement point; a step (b) of determining whether a current inputted measurement is higher than a previous maximum or is lower than a previous minimum; and a step (c) of storing a new maximum or a new minimum and displaying the new maximum or the new minimum in a graph or a text form if the current inputted measurement is higher than the previous maximum or lower than the previous minimum. The measurement point is determined manually by a tester or automatically by the measurement instrument or is determined as the entire measurement section. The current inputted measurement is added to previously inputted measurements to calculate the average and is then displayed in a graph or a text form. If the current inputted measurement escapes from a reference value, an audiovisual warning is issued and a tester terminal is notified.
Patent KR-20230020767-A (KR)
Title: System and method for standardizing elevator failure items
Inventor: KANG SUNG WOO
IPC: G06Q10/06
Filed: 2021-08-04
Abstract: The present invention relates to a system and method for standardizing elevator failure items, and more specifically, to a system and method for standardizing elevator failure items, which can include a list determination unit, a primary transformation unit and a secondary transformation unit. According to an embodiment of the present invention, it is possible to determine whether a keyword of a repair component and a keyword of a failure content are included in a repair component list and a failure content list, and convert basic failure information according to whether the keywords are included or not.
Patent KR-20230021278-A (KR)
Title: A fire monitoring system based on artificial intelligence
Inventor: KIM BONG KOOK
IPC: G06Q50/10
Filed: 2021-08-05
Abstract: The present invention relates to an AI fire monitoring system which detects signs of fire before a fire occurs. The fire monitoring system includes: a first image acquisition unit which collects thermal images; an analysis unit which continuously analyzes temperature through image data and generates a danger signal when a temperature change rate in a predetermined area exceeds a reference temperature change rate or a measured temperature exceeds the reference temperature; and a server connected to the analysis unit to transmit and receive data.
Patent KR-20220020218-A (KR)
Inventor: HASHIMOTO YUKI
IPC: C08G18/22
Filed: 2021-08-09
Abstract: Provided are a surface protection coating agent, a cured product, a laminated product, and a production method thereof. In the present disclosure, provided is a surface protection agent comprising a polymer (A) comprising a constituent unit 1 derived from long chain alkyl group containing (meth)acrylic acid ester and a constituent unit 2 derived from a hydroxyl group containing (meth)acryl-based monomer; and polyisocyanate (B). According to the present invention, a laminated product having good elongation, self-healing, and antifouling properties can be obtained.
Patent KR-20220023314-A (KR)
Title: Visitor's book system and method for the same
Inventor: SONG SEUNG JUNE
IPC: G06Q50/30
Filed: 2021-08-19
Abstract: The present invention provides a method of a digital-type visitor book system, which includes the steps of: capturing a visitor who has visited a specific place and checks visitor information, which is information of the visitor, based on the captured information (S201); collecting an image commemorating the visit of the visitor according to the visit information including the visitor information, and synthesizing the image commemorating the visit with the visitor captured image, which is an image of the visitor to generate and output a commemorative augmented image (S202); and transmitting the image to the visitor (S203).
Patent KR-20230029013-A (KR)
Inventor: PARK SEONG WOO
IPC: C09K17/52
Filed: 2021-08-23
Abstract: 본 발명은 기존 우드칩 멀칭재의 효과와 더불어 우드칩에 식물과 토양에 유익한 미생물과 천연유기미네랄의 함침을 통한 목재의 서방효과를 이용하여 장기간 토양과 과 식물에 유익한 우드칩 멀칭제 개발을 목표로 한다.
Patent KR-20230029195-A (KR)
Title: 차량용 프런트 필러
Inventor: KONG NAK KYOUNG
IPC: B60J10/30
Filed: 2021-08-24
Abstract: 본 발명은 차량용 프런트 필러에 관한 것으로, 본 발명의 일 실시예로서, 차량용 프런트 필러는 차량의 측면에 위치하는 사이드 아우터 패널, 상기 사이드 아우터 패널과 소정의 공간만큼 이격되어 위치하는 사이드 아우터 이너 패널, 상기 사이드 아우터 패널과 상기 사이드 아우터 이너 패널사이에 위치하는 레인포스 멤버, 상기 레인포스 멤버의 외측의 적어도 일부를 감싸도록 위치하는 윈드실드 글라스 및 상기 사이드 아우터 패널 끝단과 윈드실드 글라스를 사이에 위치하는 체결유닛을 포함한다.
Patent KR-20210110538-A (KR)
Title: Magnetic tunnel junction device, magnetic memory using the same, and method for manufacturing the same
Inventor: MIURA KATSUYA
IPC: H01L27/22
Filed: 2021-08-25
Abstract: In accordance with the present invention, an objective thereof is to provide a magnetic tunnel junction (MTJ) element capable of suppressing a magnetic characteristic deterioration of a magnetic tunnel junction layer caused by plasma CVD film formation, and dealing with refinement. To achieve the objective, the MTJ element includes magnetic tunnel junction layers (101, 102, 103), and multiple layers of protection films formed on side walls of the magnetic tunnel junction layers. The multiple layers of protection films include a first protection film (109) which is a SiN film formed with a different film formation condition of plasma CVD, and formed to be directly adjacent to the magnetic tunnel junction layers. Hydrogen ion density or hydrogen ion energy on a film formation condition of the first protection film is lower than hydrogen ion density or hydrogen ion energy on a film formation condition of another protection film (110) of the multiple layers of protection films. As the other protection film, a protection film, of which the nitrogen density is higher than the nitrogen density of the first protection film, is included.
Patent KR-20210110548-A (KR)
Title: Fin field-effect transistor device and method of forming the same
Inventor: LIN CHUN NENG
IPC: H01L29/66
Filed: 2021-08-31
Abstract: A semiconductor device includes: a first fin, a second fin protruding over a substrate, and a third fin between the first fin and the second fin; a gate dielectric layer over the first fin, the second fin, and the third fin; a first work function layer above the gate dielectric layer, in contact with the gate dielectric layer, and extended along the first sidewall and the first upper surface of the first fin; a second work function layer above the gate dielectric layer, in contact with the gate dielectric layer, and extended along the second sidewall and the second upper surface of the second fin, wherein the first work function layer and the second work function layer include different materials; and a first gate electrode above the first fin, a second gate electrode above the second fin, and a third gate electrode above the third fin.
Patent KR-20230039323-A (KR)
Title: 외풍 유입 가이드장치
Inventor: KIM SANG SEOP
IPC: F24F13/14
Filed: 2021-09-14
Abstract: 본 발명은 베란다 난간에 하우징체를 걸어준 후 난간봉에 볼트고정하여 하우징체를 고정 설치할 수 있음에 따라, 설치성 향상은 물론 설치에 따른 작업성과 편의성을 크게 향상시킬 수 있으며, 창문의 정면방향은 물론 창문의 측면방향으로 불어오는 외풍을 하우징체 내측으로 유입하여 실내로 유입시킬 수 있기 때문에, 계절마다 달라지는 바람의 불어오는 방향에 관계없이 창문을 통해 외풍을 실내로 유입시킬 수 있으며 실내공기를 실외측으로 배출시킬 수 있어 실내의 환기성 및 통풍성을 크게 향상시킬 수 있고, 간단한 구성에 의해 설치에 따른 비용부담을 최소화할 수 있으며, 모터와 같은 전원구동체를 사용하지 않기 때문에 전기료의 낭비를 방지하여 경제적인 효과를 얻을 수 있으며, 친환경적인 효과를 얻을 수 있는 외풍 유입 가이드장치가 개시된다.
Patent KR-20230040605-A (KR)
Title: 보론나이트라이드 고분자나노복합체 및 그 제조방법
Inventor: RYU HYEUN MIN
IPC: C08L77/02
Filed: 2021-09-16
Abstract: 본 발명은 암모니아수(ammonia solution)와 이소프로필 알코올(Isopropyl alcohol)를 포함한 용매에 보론나이트라이드(BN) 파우더를 투입하고 초음파 처리하여 보론나이트라이드를 박리시키는 단계;상기 박리된 보론나이트라이드를 황산 및 인산이 포함된 용액에 투입한 후 과산화망간(KMnO4)을 넣은 뒤 일정시간 후에 증류수와 과산화수소(hydrogen peroxide) 혼합용액을 투입한 후  와싱하여 표면개질된 보론나이트라이드(BN-OH)를수득하는 단계; 및 상기 표면개질된 보론나이트라이드(BN-OH)를 폴리아마이드 6과 용융혼합하는 단계를 포함한 보론나이트라이드 고분자나노복합체 제조방법에 관한 것이다.
Patent KR-20230041443-A (KR)
Inventor: HEO YUN SEOK
IPC: C12N13/00
Filed: 2021-09-17
Abstract: 본 발명은 음파제어를 이용한 단일 배아 배양 시스템에 관한 것이다. 본 발명에 따르면, 음파제어를 이용한 단일 배아 배양 시스템에 있어서, 전도체로 도금된 기판, 단일 배아를 배양시키기 위한 배양 공간이 내부에 형성되며, 개방형의 다각형 형태로 구현되어 상기 기판 상에 부착되는 폴리머 체임버, 상기 폴리머 체임버를 중심으로 대칭되는 지점에 위치하며, 상기 기판 상에 부착되는 한쌍 이상의 전극, 그리고 전압이 인가되면 상기 한쌍 이상의 전극을 통하여 상기 폴리머 체임버 내에 존재하는 단일 배아에 음파를 발생시키는 음파 제어부를 포함한다. 
이와 같이 본 발명에 따르면, 음파를 이용하여 배아의 움직임을 유도하도록 제어하여 생체 조건과 유사한 환경에서 배아를 배양함으로, 체외수정시술 성공률을 향상시킬 수 있다. 그리고, 최적의 단일 배아를 선별함으로써, 다중 배아 이식에 의한 다태아 착상을 방지할 수 있다. 또한, 저체중아, 선천적 장애아 출산 등의 시술에 따른 부작용을 방지할 수 있다.
Patent KR-20230051345-A (KR)
Inventor: BYUN SANG CHUL
IPC: H10K59/00
Filed: 2021-10-08
Abstract: 표시 장치는 표시 영역 및 표시 영역의 일 측에 위치하는 패드 영역을 포함하는 기판, 기판의 패드 영역 상에 배치되는 제1 패드 전극, 기판의 패드 영역 상에서, 제1 패드 전극과 이격되어 배치되는 제2 패드 전극, 제1 패드 전극 및 제2 패드 전극 사이에 배치되는 댐 구조물, 제1 패드 전극, 제2 패드 전극 및 댐 구조물 상에 배치되고, 제1 도전성 볼, 제2 도전성 볼 및 레진을 포함하는 접착 부재 및 접착 부재 상에 배치되는 전자 부품을 포함한다.
Patent KR-20230050733-A (KR)
Inventor: LEE JAE IN
IPC: B26B11/00
Filed: 2021-10-08
Abstract: 본 발명은 다용도 칼에 관한 것으로서 가정에서 칼을 이용할 때 손에 베일 확률을 줄여 칼에 대한 위험도를 낮추고 온도 조절을 적용해 음식 자를 때 손쉽게 사용가능하도록 함으로써 기존의 칼을 자를 때 다칠 위험이 있고 잘 잘리지 않는  문제점을 해소 하도록 한 것이다. 즉 본 발명은, 칼에 있어서 상황에 따라 칼을 뜨겁게 하거나 차갑게 하여 음식을 잘 자를 수 있게 스위치를 만들어 온도 조절에 용이한 온도 조절, 칼에 베일 것 같을 때 소리가 나게 하여 베일 위험을 줄일 수 있게 칼을 이용할 때 피부와 거리를 인지한 소리 발생으로 구성한 것이다. 따라서, 본 발명은 가정에서 칼을 이용할 때 손에 베일 확률을 줄여 칼에 대한 위험도를 낮추고 온도 조절을 적용해 음식 자를 때 손쉽게 사용가능하도록 함으로써 기존의 칼을 자를 때 다칠 위험이 있고 잘 잘리지 않는  문제점을 해소하도록 한 효과를 갖는 것이다.
Patent KR-20230052700-A (KR)
Title: 동백 추출물, 금화규 추출물, 개서어 추출물, 누에 추출물 및 병풀 추출물을 유효성분으로 함유하는 안티폴루션 화장료 조성물
Inventor: CHOI YUN JEONG
IPC: A61K8/9789
Filed: 2021-10-13
Abstract: 본 발명은 동백 추출물, 금화규 추출물, 개서어 추출물, 누에 추출물 및 병풀 추출물을 유효성분으로 함유하는 화장료 조성물로서, 항산화 및 항주름 효과가 우수한 안티폴루션 화장료 조성물에 관한 것이다. 
본 발명의 안티폴루션 화장료 조성물은 동백 추출물, 금화규 추출물, 개서어 추출물, 누에 추출물 및 병풀 추출물을 유효성분으로 함유하여 피부의 자극이 적으며, 미세먼지 등의 오염물질에 대한 항오염 효과를 제공해 피부를 보호한다. 
본 발명의 안티폴루션 화장료 조성물은 항산화 및 항주름 효과가 우수하여 피부 트러블의 원인이 되는 활성산소의 소거 활성 효능이 뛰어나며, 피부주름을 유발하는 콜라겐 분해효소의 활성을 저해하고 콜라겐의 발현량을 증가시키는 효과가 있다.
Patent KR-20230054950-A (KR)
Title: 부상자의 체형에 맞도록 조절되는 응급구조 부목
Inventor: AN JI HYUN
IPC: A61F5/058
Filed: 2021-10-18
Abstract: 본 발명은 부상자의 체형에 맞도록 조절되는 응급구조 부목에 관한 것으로 보다 상세하게는, 신체부위의 둘레를 감싸는 제1고정부; 상기 제1고정부와 일정간격 이격되어 구비되고 신체부위의 둘레를 감싸는 제2고정부; 상기 제1고정부와 상기 제2고정부의 사이에 구비되고 신체부위의 길이를 조절하는 길이조절부; 상기 제1고정부의 양끝단과 상기 제2고정부의 양끝단에 각각 구비되어 신체부위에 고정되도록 체결하는 체결부;를 포함하되, 상기 길이조절부는, 복수의 환봉이 다단으로 중첩되어 신체부위의 길이에 맞도록 조절하는 것을 특징으로 한다.