baber/WOPTO huggingface dataset:
Patent KR-20170005585-A (KR)
Inventor: OH SANG YOON
IPC: C09K109/00
Filed: 2015-07-06
Abstract: The present invention relates to a soil neutralizer for ameliorating the acidified soil, adjusting pH, and the like. The soil neutralizer is obtained by atomizing steel return slag, and comprises rapidly chilled steel return slag having a stable phase of a spinel structure. The soil neutralizer has 1.7 or more of CaO/SiO_2, and may comprise 40-50 wt% of CaO, 20-30 wt% of SiO_2, and 10-12 wt% of MgO.
Patent KR-20170006067-A (KR)
Title: Apparatus for estimating frequency of power system
Inventor: LIM YOUNG BIN
IPC: G01R19/252
Filed: 2015-07-07
Abstract: According to an embodiment, a device for estimating frequency of a power system includes: an analog digital converting unit which receives analog data to be detected from the power system, and converts the received analog data into digital data; and a frequency estimating unit which obtains sampling data by sampling digital data converted through the analog and digital converting unit, and estimates the frequency of the power system by using a result value through discrete Fourier conversion of the obtained sampling data.
Patent KR-20170009654-A (KR)
Inventor: LEE YUN GU
IPC: G06T7/00
Filed: 2015-07-17
Abstract: 본 발명의 바람직한 일 실시예로서, 영상에디팅방법은 입력동영상 내에서 타겟을 선정하고, 선정된 타겟의 위치를 파악하는 단계; 상기 입력동영상을 에디팅(editing)한 보정동영상 내에서  상기 타겟의 보정위치를 결정하는 단계; 및 상기 입력동영상을 촬영한 영상촬영장치를 병진이동 또는 회전이동하여 상기 입력동영상을 촬영한 영상촬영장치의 위치 또는 오리엔테이션(orientation)을 재설정함으로써 상기 입력동영상 내의 타겟의 위치를 상기 보정동영상 내의 상기 타겟의 보정위치로 보정하는 단계;를 포함하는 것을 특징으로 한다.
Patent KR-20170010563-A (KR)
Title: Dishwasher
Inventor: PARK DONG HWI
IPC: A47L15/23
Filed: 2015-07-20
Abstract: The present invention relates to a tub providing a cleaning space; a rack positioned inside the tub to receive an object to be cleaned; a support unit forming a flow path through which washing water is supplied; an arm rotatably coupled to the support unit and spraying washing water supplied through the flow path to the object to be cleaned; and a power generating unit that rotates the arm using washing water flowing into the arm from the support unit.
Patent KR-20160011158-A (KR)
Title: Screen sharing system and method
Inventor: LEE GIL SOO
IPC: H04N21/2343
Filed: 2015-07-20
Abstract: The present invention relates to a screen sharing system and method. The screen sharing system allows a remote terminal to share the screen of a device in which the hardware structure of a display is multiplexed. For this, the screen sharing system according to the present invention includes a screen sharing terminal which collects the graphic image of a background screen and the video image of a play screen, respectively, generates an entire screen where the play screen is inserted into the background screen, and transmits the entire screen to a sharing server, and a remote control terminal which receives the entire screen from the sharing server and transmits a remote control signal to the sharing server.
Patent KR-20170017122-A (KR)
Title: Semiconductor device
Inventor: KIM SUN HYUN
IPC: H01L21/3213
Filed: 2015-08-05
Abstract: A semiconductor device is provided. The semiconductor device includes a first conductive pattern disposed in a first interlayer dielectric, a second conductive pattern disposed in a second interlayer dielectric located on the first interlayer dielectric, a penetration electrode penetrating a part of the first interlayer dielectric and a part of the second interlayer dielectric and electrically connecting the first conductive pattern and the second conductive pattern, a first pattern completely surrounding the side surface of the penetration electrode, a second pattern disposed between the first pattern and the penetration electrode and spaced apart from the first pattern and the penetration electrode, and a third pattern connecting the first pattern and the second pattern. So, a leakage current between terminals can be prevented.
Patent KR-20170017220-A (KR)
Inventor: KIM YOUNG HEE
IPC: A47J37/12
Filed: 2015-08-06
Abstract: 본 발명은 분무식 다중가열 수유식 튀김 장치에 관한 것으로, 본체(110);와, 상기 본체(110)의 내측 상부에 설치되며, 튀김재료(f)의 1/2~1/3 정도만이 튀김유(o)에 잠기도록 상기 튀김유(o)가 채워지는 튀김 유조(120);와, 상기 튀김 유조(120) 내의 상기 튀김유(o)를 튀김유 순환 펌프(122)를 통하여 순환시켜 상기 튀김 유조(120)내의 튀김 재료(f)에 분무하는 튀김유 분사부(123);와, 상기 튀김유조(120)의 외측 하부에 설치되는 인덕션 가열수단(131)과, 상기 튀김유조(120)의 측면에 설치되는 극초단파 가열수단(132)를 포함하여 구성되는 다중 가열 수단(130);과, 상기 튀김 유조(120)의 하측에 연결부(141)를 통하여 연결되며, 상기 연결부(141)의 하측에는 냉각수(w)가 저장되는 저장조(142)가 구비된 냉각수조(140); 를 포함하여 구성되는 것을 특징으로 하는 분무식 다중가열 수유식 튀김 장치(100)에 관한 것이다.
Patent KR-20170018531-A (KR)
Inventor: KIM SU MIN
IPC: B28B17/02
Filed: 2015-08-10
Abstract: 축열 석고보드 및 이의 제조방법이 개시된다.  
축열 석고보드는 열전도도 증진을 위한 상안정화된 상변화 물질(Shape Stabilized Phase Change Material)을 포함하므로, 열전도도, 에너지 효율 및 축열성능이 향상될 수 있다.
Patent KR-20170020676-A (KR)
Inventor: YOU CHUN GI
IPC: H01L51/56
Filed: 2015-08-13
Abstract: According to the present invention, an organic light emitting diode display device comprises a substrate, a driving semiconductor layer, a driving gate electrode, a common voltage line, a driving gate electrode oxidation prevention layer, a common voltage line oxidation prevention layer, an inter-layer insulation film, a driving source electrode, a driving drain electrode and a common voltage-applying electrode. The substrate includes: a display area where a plurality of pixels displaying an image are positioned; and an area surrounding the display area. The driving semiconductor layer is positioned on the display area on the substrate. The driving gate electrode is positioned on the driving semiconductor layer. The common voltage line is arranged in the surrounding area on the substrate and is formed on the same layer as the driving gate electrode. The driving gate electrode oxidation prevention layer is arranged on the driving gate electrode. The common voltage line oxidation prevention layer is arranged on the common voltage line. The inter-layer insulation film is positioned on the driving semiconductor layer, the driving gate electrode, the common voltage line, the driving gate electrode oxidation prevention layer and the common voltage line oxidation prevention layer. The driving source electrode and the driving drain electrode are positioned on the display area on the inter-layer insulation layer. The common voltage-applying electrode is positioned in the surrounding area on the inter-layer insulation film and is formed on the same layer as the driving source electrode and the driving drain electrode. The common voltage-applying electrode and the common voltage line are connected through a first contact hole formed on the inter-layer insulation film, and the first contact hole may not overlap with the common voltage line oxidation prevention layer.
Patent KR-20170025022-A (KR)
Title: 오배수 장치
Inventor: YOO DONG YOUNG
IPC: E03F11/00
Filed: 2015-08-27
Abstract: 본 발명의 실시예에 따른 오배수 장치는, 오수가 유입되는 탱크; 상기 탱크 내부에 구비되는 배수펌프; 상기 탱크로 유입된 오수를 배출하는 관으로서, 일단은 배수펌프와 연결되고 타단은 탱크 외부에 위치하는 배출관; 및 일단이 상기 배출관에 연결되는 것으로서, 분사대상물을 향하여 오수를 분사하는 분사장치; 를 포함한다.
Patent KR-20170028066-A (KR)
Title: Drain pump with trouble shooting function
Inventor: CHOI YONG JU
IPC: F04D15/02
Filed: 2015-09-03
Abstract: The present invention relates to an automatic drain pump capable of troubleshooting, which is able to easily diagnose if there is any disorder by measuring the RPMs of a motor by using the counter electromotive force, and to protect a controller, which has many disorders in the poor environment to handle a variety of filthy water, from being inundated by filthy water. The present invention provides a drain pump, comprising: a pump main frame which has a built-in motor pump which comprises: a motor; and an impeller, whose bottom has an inlet to intake filthy water, and whose side surface has an outlet to discharge the filthy water taken in through the inlet; an overcurrent detection comparison unit which measures the current supplied to the motor and detects the overcurrent by comparing the current with a standard current; a counter electromotive force detector unit which detects the counter electromotive force of the motor; and a controller which mixes a switching signal, which rotates the motor, and speed data, which outputs a driving control signal, which, when the overcurrent is detected, controls the driving of the motor to be turned off, and which determines if the driving control signal is variable or not by determining the RPMs of the motor through the detected counter electromotive force. The controller, when the rev count of the motor exceeds a rotation error range after variable output of the driving control signal, determines that there is a disorder, and outputs a disorder signal to the user.
Patent KR-20170028693-A (KR)
Title: 심해저 광물 집광로봇의 채집장치부 제어장치 및 그 방법
Inventor: YEU TAE KYEONG
IPC: E21C50/00
Filed: 2015-09-04
Abstract: 본 발명은 심해저면의 경사 및 고도에 따라 채집장치부의 높이를 가변 제어하는 것에 의해, 채집장치부를 보호하고, 심해저 광물의 채집효율을 향상시키는 심해저 광물 집광로봇의 채집장치부 제어장치 및 그 방법에 관한 것으로, 
상기 심해저 광물 집광로봇의 채집장치부 제어장치는, 채집장치부의 전면에 장착되어 해저 지형으로 음파를 송신한 후 반사된 음파를 수신하여, 송수신 음파 정보 및 시간 정보를 출력하는 음파검출부; 상기 음파검출부의 송수신 음파 정보 및 시간 정보를 분석하여 집광로봇의 주행 전면에 위치하는 해저지형정보를 획득하는 지형연산부; 및 상기 지형정보를 이용하여 해저 지형의 위치별로 채집장치부가 최적의 코안다 효과가 발생하도록 하는 위치 또는 해저 장애물과 충돌하지 않는 위치를 가지도록 하는 자세제어실린더구동신호를 연산하여 동력제어 계측부로 출력하는 자세제어실린더구동연산부;를 포함하여 구성되어, 
심해저 광물의 채집 시 집광로봇의 채집장치부를 보호하고, 광물의 채집효율을 향상시키는 효과를 제공한다.
Patent KR-20170029219-A (KR)
Inventor: KIM EUN HEE
IPC: C08F4/6592
Filed: 2015-09-07
Abstract: 폴리프로필렌계 수지와의 상용성이 높은 고분자량의 비결정성 폴리프로필렌을 사용하여 투명성 및 점착성이 우수한 폴리프로필렌 수지 조성물 및 이로부터 제조된 다층 필름이 개시된다. 본 발명은 중량평균분자량이 50,000~1,000,000이고, 입체규칙도(isotactisity, Pentad I.I, mmmm)가 5~20%인 비결정성 폴리프로필렌 100중량부; 스티렌-에틸렌/부틸렌-스티렌(SEBS) 블록 공중합체 5~15중량부; 및 스티렌-글리시딜 메타크릴레이트(Styrene-glicidyl methacrylate) 랜덤 공중합체 5~20중량부;를 포함하는 다층 필름용 폴리프로필렌 수지 조성물 및 이를 이용하여 제조된 다층 필름을 제공한다.
Patent KR-20170030680-A (KR)
Title: Apparatus for measuring corrosion, apparatus for simulating corrosion and method for monitering corrosion of structure in tidal zone
Inventor: SOH JOON YOUNG
IPC: G01R19/145
Filed: 2015-09-09
Abstract: According to one embodiment of the present invention, a corrosion measurement apparatus comprises: a member; a sensing unit sensing contact of fluid with respect to the member; a measurement unit measuring electrical data of the member; and a calculation unit calculating corrosion information of the member based on a sensing result of the sensing unit and a measurement result of the measurement unit. As such, the present invention is able to accurately measure the corrosion information.
Patent KR-20170040883-A (KR)
Inventor: KIM EUY HYUEN
IPC: E04F13/02
Filed: 2015-10-06
Abstract: The present invention relates to a method to construct an insulator of an external insulation plastering and finishing system. According to the present invention, the method comprises a step of placing concrete in a defective concave part of a concrete wall background surface of which smoothness error is at least 20 mm, and then directly attaching a calcium carbonate inorganic panel and curing the concrete. According to the present invention, the construction method is capable of being easily and effectively applied to a part of an outer wall background surface of which smoothness error is not less than 20 mm and commonly not less than 30 mm without an extra reinforcement material such as a fastener, or track as well as directly attaching a weight finishing material such as a slate, a stone tile, or a ceramic tile to an outer surface of an insulating panel reducing production costs by being directly attached to a part of which smoothness error is large through concrete without using an adhesive mortar; thereby being effectively applied to the external insulation plastering and finishing system using the calcium carbonate inorganic panel.
Patent KR-20160103495-A (KR)
Inventor: LEE SO HYUNG
IPC: H01L27/32
Filed: 2015-10-07
Abstract: The present invention relates to a thin film transistor substrate where different kinds of thin film transistors are arranged on the same substrate, and a display device using the same. The display device according to the present invention includes a first thin film transistor, a second thin film transistor, and an intermediate insulating layer. The first thin film transistor includes a polycrystalline semiconductor layer, a first gate electrode arranged on the polycrystalline semiconductor layer, a first source electrode and a first drain electrode. The second thin film transistor includes a second gate electrode, an oxide semiconductor layer arranged on the second gate electrode, a second source electrode and a second drain electrode. The intermediate insulating layer includes a nitride layer and an oxide layer on the nitride, and is arranged on the first gate electrode and the second gate electrode and under the oxide semiconductor layer. So, the thin film transistors can be formed by an optimized manufacturing process and a minimized mask process.
Patent KR-20170045068-A (KR)
Title: Money changing system in a foreign country
Inventor: NA HOON
IPC: G06Q40/04
Filed: 2015-10-16
Abstract: The present invention relates to a foreign exchange system, capable of issuing an exchange identification token, to be stored in a user mobile terminal owned by a user, and making exchange easy and simple in foreign countries, through verification of the exchange identification token, which is stored in the user mobile terminal. The foreign exchange system of the present invention comprises an exchange authentication server, and a server of a domestic financial corporation.
Patent KR-20170046262-A (KR)
Title: Glass healing
Inventor: GONG SUK TAE
IPC: C03C15/02
Filed: 2015-10-21
Abstract: The present invention relates to a method for healing a glass cut surface. When a cut surface is dipped in a hydrofluoric acid or hydrofluoric acid substitution solution for melting glass and weak vibration is applied thereto, micro-cracks in the cut surface are melted by the hydrofluoric acid solution to be smoothly healed. The surface thereof should not be melted, so several sheets of glass to be healed are attached by water and are pre-pressed. The sheets of glass are transferred to an operation place having a temperature below zero, and water is frozen, so spaces between the sheets of glass are attached by ice and gaps do not occur. Next, the glass is added to a hydrofluoric acid solution and is vibrated. Then, the hydrofluoric acid solution and a glass cut surface are made to rub together, so micro-crack parts are smoothly healed. The freezing point of the hydrofluoric acid solution is -36 degrees Celsius, so a healing operation is performed while ice of an attached surface protects a glass surface when an operation is performed in an operation place having a temperature of 0 to -35 degrees Celsius. Accordingly, while a surface between sheets of glass is protected, micro-cracks of a cut surface are healed. Washing can be conveniently performed after an operation, and good operation properties are ensured.
Patent KR-20170046876-A (KR)
Inventor: YOON SEONG JIN
IPC: C04B18/14
Filed: 2015-10-21
Abstract: The present invention relates to a binder composition for improving the soft ground. The binder composition for improving the soft ground is provided to use petroleum coke fuel ash and palm kernel shell fuel ash as stimulants in blast furnace slag; and to increase activity of the blast furnace slag, thereby minimizing usage of type 1 ordinary cement which is generally used during ground improvement construction. The binder composition for improving the soft ground comprises: 5-500 parts by weight of the petroleum coke fuel ash which is generated during a desulfurization process of circulating fluidized bed boiler, and includes 50-75 wt% of CaO and 15-40 wt% of SO_3; and 5-500 parts by weight of the palm kernel shell fuel ash, which is discharged from a coal-fired power generating system with palm kernel shells, and includes 10-30 wt% of CaO and 1-15 wt% of SO_3, for 100 parts by weight of the blast furnace slag.
Patent KR-20160048677-A (KR)
Inventor: RICHTER GERALD
IPC: B60H1/22
Filed: 2015-10-23
Abstract: The present invention relates to an air conditioning system (1′, 1′′) for conditioning air in a passenger compartment (9) of a vehicle, which is operated in a cooling device mode for cooling air to be supplied to the passenger compartment (9) of a vehicle, a heat pump mode for heating, and a preheating mode. The air conditioning system (1′, 1′′) comprises: a housing (2) which has first and second flow channels (3, 4) for guiding air; and a refrigerant circulation system which has two or more heat exchangers, wherein the first heat exchanger is arranged in the first flow channel (3) and the second heat exchanger is arranged in the second flow channel (4). The heat exchangers are operated as an evaporator (7) and a condenser/gas cooler (8a, 8b) regardless of the operation mode.
Patent KR-20160059414-A (KR)
Inventor: HWANG SUNG TEAC
IPC: G06K9/00
Filed: 2015-10-23
Abstract: Disclosed are a method and a system for determining social intimacy. The method comprises: a step of detecting heart rate information from a micro motion of at least two subjects; a step of extracting heart rhythm coherence (HRC) data from the heart rate information of two subjects; and a step of comparing the HRC data of the two subjects to determine a social relationship (intimacy) therebetween. The present invention provides a method for evaluating intimacy to evaluate a social relationship between two people in a quantitative manner.
Patent KR-20170051958-A (KR)
Inventor: HYUN JOON SOO
IPC: F16C19/16
Filed: 2015-11-03
Abstract: 본 발명은 제1내륜과 제2내륜으로 분리된 내륜, 상기 내륜에서 반경 외측으로 이격된 외륜, 그리고 상기 내륜과 상기 외륜이 상대회전이 가능하도록 구비되는 전동체를 포함하는 4점접촉 볼 베어링에 관한 것이다. 본 발명에 의하면, 상기 제1내륜과 상기 제2내륜의 일부는 서로 접촉하며, 상기 제1내륜과 상기 제2내륜의 사이에는 내륜 공간이 형성되도록 적어도 하나 이상의 홈이 상기 제1내륜과 상기 제2내륜에 각각 형성됨으로써, 고속으로 회전하는 볼 베어링을 쉽게 방열하는 한편, 내륜과 연삭 기구 사이의 접촉되는 면적이 작아지게 됨으로써, 접촉되는 부분에 발생되는 부하를 저감하고 그 생산성을 향상시킬 수 있다.
Patent KR-20170052051-A (KR)
Title: Touch sensing method, touch sensing controller and touch sensing device having the same
Inventor: HAN SANG HYUN
IPC: G06F3/041
Filed: 2015-11-03
Abstract: Disclosed are a touch sensing method, a touch sensing controller, and a touch sensing device having the same which determine whether a touch is generated based on sensing signals automatically received from sensing electrodes adjacent to each other. The touch sensing device comprises: a touch panel on which a plurality of drive electrodes and a plurality of sensing electrodes are arranged; and a touch sensing controller including a drive unit to supply a plurality of drive signals having difference frequencies to the drive electrodes, and a sensing unit to differentially receive sensing signals sensed by the sensing electrodes to determine whether a touch is generated. Accordingly, the sensing signals are differentially received by the sensing electrodes adjacent to each other to determine whether a touch is generated based on information acquired by high speed Fourier transformation.
Patent KR-20170052253-A (KR)
Title: The manufacturing method of charcoal flowerpot and charcoal flowerpot manufactured by the same
Inventor: JEON MYUNG JA
IPC: A01G9/02
Filed: 2015-11-04
Abstract: The present invention relates to a charcoal flowerpot production method and a charcoal flowerpot produced thereby. To this end, the charcoal flowerpot production method comprises the following steps: producing hardwood charcoal; cutting and perforating the hardwood charcoal in a desired size and shapes for the charcoal flowerpot in an operation tank in which a temperature is regulated to 3-10 degrees below zero; filling cracks on a surface of the cut and perforated charcoal flowerpot with a liquid foaming polyurethane raw material, and then foaming and expanding the same thereafter; and curing the foamed polyurethane-containing charcoal flowerpot. According to the present invention, the charcoal flowerpot ensures increased durability and favorable appearance, and exhibits inherent effects of charcoal regarding air purification and far-infrared light emission.
Patent KR-20170053456-A (KR)
Title: Device and method for controlling data request
Inventor: LEE SEUNG BEOM
IPC: G06F13/22
Filed: 2015-11-06
Abstract: The present invention relates to a device and a method for controlling a data request. The device according to various embodiments of the present invention can comprise: a transmission and reception part configured to transmit or receive information; and a control part operatively coupled to the transmission and reception part. The control part can be configured to receive status information for each of a plurality of control devices from each of the plurality of control devices requesting data to a storage device, to determine a threshold for an outstanding request for each of the plurality of control devices based on the received status information, and to transmit the threshold to at least one other device.
Patent KR-20170053515-A (KR)
Inventor: JEONG JI SEON
IPC: C08J5/18
Filed: 2015-11-06
Abstract: The present invention relates to a method for manufacturing a dry hydrogel sheet and a hydrogel sheet manufactured by the same. The method for manufacturing a dry hydrogel sheet comprises the following steps: manufacturing a cellulose ether dispersion; transferring the dispersion to a coating machine while maintaining a temperature of the dispersion within a temperature range between a gelation temperature of the dispersion and a boiling point of a dispersion medium; applying the dispersion, transferred to the coating machine, on a sheet; manufacturing the hydrogel sheet as the applied dispersion is cooled and becomes gel; and drying the hydrogel sheet. The dry hydrogel sheet, manufactured by the manufacturing method of the present invention has low moisture content and thus can ensure stability of active ingredients. Functional ingredients can be quantified and applied to the dry hydrogel sheet. As an external appearance of the surface and thickness of the dry hydrogel sheet can be obtained, quality of a final product can be increased.
Patent KR-20170053522-A (KR)
Title: 세포 형광 이미징을 이용한 단백질 저해 실시간 동정 방법
Inventor: LEE JI YEON
IPC: C07D403/12
Filed: 2015-11-06
Abstract: 본 발명은 세포 내 형광 이미징 기술을 이용하여 단백질 저해를 실시간 동정하는 시스템에 관한 것으로서, 단백질 저해제를 포함하는 양자점을 발광체로 이용하는 단백질 검출용 탐침체와 세포 내 형광 이미징 기술을 이용하여 단백질 및 상기 단백질의 저해제 간의 결합/해리를 실시간으로 동정할 수 있으며, 신규한 단백질 저해제의 스크리닝에 응용될 수 있다.
Patent KR-20170053834-A (KR)
Title: 빗자루
Inventor: JANG EUN SEOK
IPC: A46B5/00
Filed: 2015-11-07
Abstract: 본 발명은 빗자루에 관한 것으로서, 빗자루를 사용함에 있어 물을 적게 사용하여, 물 낭비를 크게 줄일 수 있도록 한 목적으로 한 것이다. 
즉, 본 발명은 빗자루에 있어서, 손으로 잡을 수 있게 한 빗자루몸체, 빗자루몸체의 상부에 물을 담을 수 있는 물입력부, 물입력부 상부에 물이 흐르지 않도록 닫을 수 있는 빗자루뚜껑, 빗자루몸체의 하부에 물이 흐를 수 있도록 하는 물출력부, 물출력부 하부에 물이 어느정도 남아있는지 육안으로 확인 할 수 있는 물확인부, 물출력부의 상부에 빗자루몸체와 물출력부를 서로 분리하여 청소를 용이 할 수 있도록 하고 연결 할 수 있는 몸체조립부, 물출력부의 하부에 먼지나 쓰레기를 쓸 수 있는 빗머리부로 구성한 것이다. 
따라서, 본 발명은 빗자루를 사용함에 있어 물을 적게 사용하여, 물 낭비를 크게 줄일 수 있는 효과를 갖는 것이다.
Patent KR-20170057540-A (KR)
Inventor: MIN BYUNG HO
IPC: B60R21/213
Filed: 2015-11-17
Abstract: Disclosed is a roof airbag apparatus. According to the present invention, a roof airbag apparatus comprises: an inflator generating gas in an event of a car accident; a cushion portion spread out to the front along the roof of a vehicle to cover the roof by using gas provided from the inflator, and preventing passengers from jumping out through the roof; an extension tap portion provided in a hinged state to a left and right portions of the cushion portion with the cushion portion, and spread out by spreading force of the cushion portion to be extended in front and rear directions when the cushion portion spreads out; and a spread guide provided to left and right portions of the roof to be extended in the front and rear directions, guiding the extension tap portion, and having frictional contact with the extension tap portion which is in a spread out state.