baber/WOPTO huggingface dataset:
Patent WO-2021161956-A1 (WO)
Title: Total logging system
Inventor: KAWASAKI KOJI
IPC: G06Q50/04
Filed: 2021-02-08
Abstract: Provided is a total logging system with which it is possible for the causes of trouble and the like to be investigated and countermeasures confirmed rapidly and appropriately, by comprehensively recording and accumulating workers, a work status, and a work environment for a series of operations using a sterile working device, and video recording and tracing the series of operations. The total logging system includes: an image capturing device for capturing images of the work status; an information exchanging device for exchanging information between a tag and a reader; various sensors for monitoring the internal environment of the sterile working device and the operating state of an inward/outward conveying mechanism and the like; and an information recording and accumulating device. The information recording and accumulating device authenticates a worker using information from the information exchanging device, and records work content relating to machines, instruments, and objects being processed, for example, involving the worker. Further, changes in the internal environment of the sterile working device, and the operating state of the inward/outward conveying mechanism, for example, are recorded using the information from the various sensors. The recorded information is indexed to correspond chronologically to the video, and is recorded and accumulated.
Patent WO-2021166736-A1 (WO)
Title: Multilayer body and flexible display device
Inventor: TOKUDA MASAYOSHI
IPC: B32B7/023
Filed: 2021-02-09
Abstract: A multilayer body which is sequentially provided with a base material (s), an intermediate layer (c) and a water repellent layer (r) in this order, and which is characterized by satisfying the requirements (1) and (2) described below. (1) The reflectance, which is obtained by subtracting the front surface reflection loss and the back surface reflection loss from the reflectance that is calculated, with a 2-degree field of view (C light source) of JIS Z8701, from the spectral reflectance at the wavelength of 530 nm as measured on the water repellent layer (r)-side surface at the incident angle of 12° and at the reflection angle of 12°, is 4.5% or less. (2) The thickness of the multilayer body is 500 μm or less.
Patent WO-2021162016-A1 (WO)
Title: Coding device, decoding device, coding method, and decoding method
Inventor: NISHI TAKAHIRO
IPC: H04N19/30
Filed: 2021-02-09
Abstract: A coding device (100) is provided with a circuit (a1) and a memory (a2) connected to the circuit (a1), wherein in operation, the circuit (a1) determines whether or not a predetermined relation is satisfied by the number of one or more layer sets each including at least one output layer and the number of one or more parameters each indicating a performance requirement of a decoding device, and if the predetermined relation is satisfied, decides, by a predetermined method, a correspondence relation for associating each of the one or more layer sets with one of the one or more parameters and skips storing information indicative of the correspondence relation in a header common to a plurality of layers included in the one or more layer sets.
Patent WO-2021177006-A1 (WO)
Inventor: OTANI ISSEI
IPC: B22F7/08
Filed: 2021-02-15
Abstract: This manufacturing method for a thin sheet-like connecting member (8) comprises: a step in which a paste that contains first particles (1) containing a first metal, second particles (2) containing a second metal that has a lower melting point than the first metal, and a solvent is applied to a surface of a substrate (3) formed from a material that does not react with the second metal; a step in which the thin sheet-like connecting member (8) is formed on the surface of the substrate (3) by heating the paste to a temperature that is lower than the melting point of the first metal and higher than the melting point of the second metal; and a step in which the thin sheet-like connecting member (8) is obtained by peeling the thin sheet-like connecting member (8) away from the substrate (3).
Patent WO-2022190376-A1 (WO)
Title: Mold component manufacturing method
Inventor: OOTAKI TAKANORI
IPC: B23K26/342
Filed: 2021-03-12
Abstract: A mold component manufacturing method comprising a step for producing a built-up part formed from high-speed steel on a base material formed from high-speed steel, wherein: the step for producing the built-up part includes repeating a step for producing a powder layer and a step for radiating a laser beam onto the powder layer, thereby stacking solidified layers each obtained by solidifying a powder layer; the step for producing the powder layer includes spreading a powder formed from high-speed steel on a first surface; the first surface is the front surface of the base material or the front surface of each of the solidified layers; and the step for radiating the laser beam is carried out in a state in which the temperature of the first surface has been heated to at least 130°C.
Patent WO-2021193614-A1 (WO)
Title: ヘッドアップディスプレイ
Inventor: NAKAMURA DAISUKE
IPC: G02B5/30
Filed: 2021-03-23
Abstract: 偏光板（３４）に設けられた第１支持板（３０）及び第２支持板（３８）を含む偏光部材（１８）と、直線偏光成分を含む画像を出力する表示器（１２）と、表示器（１２）を収納する筐体（１０）とを備え、偏光部材（１８）は、画像を筐体（１０）の外部へ透過する透光カバーとして用いられ、偏光板（３４）の透過軸と表示器（１２）から出力された画像の偏光方向のなす角度は、平行と直交の角度を除く関係に設置され、偏光部材（１８）を透過した画像は水平方向と垂直方向の偏光を含む虚像を投影画像として投影する。
Patent WO-2022201462-A1 (WO)
Title: Terminal, système de communication sans fil et procédé de communication sans fil
Inventor: TAKAHASHI YUKI
IPC: H04W72/04
Filed: 2021-03-25
Abstract: Un terminal comprend : une unité de commande qui multiplexe au moins deux informations de commande de liaison montante ayant des priorités mutuellement différentes vers un canal partagé de liaison montante ; et une unité de communication qui transmet un signal de liaison montante en utilisant le canal partagé de liaison montante vers lequel lesdites au moins deux informations de commande de liaison montante ont été multiplexées. L'unité de commande détermine les ressources desdites au moins deux informations de commande de liaison montante à l'aide d'un procédé spécifique.
Patent WO-2021201014-A1 (WO)
Title: 留置針
Inventor: MIYAKE TAKAKO
IPC: A61M25/06
Filed: 2021-03-30
Abstract: 弾性部材近傍において滞留が生じにくい留置針を提供する。 本発明は、生体に穿刺される内針と、前記内針が貫通し該内針が生体に穿刺されることで該内針とともに生体内に挿入される外針と、前記内針の軸線に沿って配置される本体部と、該本体部から分岐する分岐部と、を含み、前記外針の内部に連通する流路を有する外針ハブと、前記外針ハブの内部に配置され前記内針が貫通するとともに、前記内針が抜去された場合に前記本体部の基端側への流体の流通を封止する柔軟な中実部を有する弾性部材と、前記弾性部材の基端に装着されるホルダとを備え、前記弾性部材は、前記外針の前記内部と前記分岐部とを連通する前記流路の少なくとも一部を形成し、前記軸線方向に対して傾斜する端面を有し、前記外針ハブは、前記弾性部材又は前記ホルダと係合して、前記弾性部材の軸回り方向を一定方向へガイドするガイド部有する留置針である。
Patent WO-2021201182-A1 (WO)
Title: 射出成形機用ベースフレーム
Inventor: YAMANAKA KAZUMA
IPC: B29C33/20
Filed: 2021-03-31
Abstract: プラテン３２を有する型締装置３１を備えた射出成形機１に用いられ、少なくとも前記型締装置３１が載置されて該型締装置３１を支持するベースフレーム２であって、当該ベースフレーム２の幅方向に互いに間隔をおいて位置し、当該ベースフレーム２の長手方向に並んで延びる対をなすメインビーム３ａ、３ｂと、前記メインビーム３ａ、３ｂ上に配置され、前記プラテン３２が取り付けられるプラテン取付けプレート４とを備え、前記プラテン取付けプレート４の前記長手方向の外縁部Ｅｄ１、Ｅｄ２が、前記メインビーム３ａ、３ｂと溶接により接合された溶接箇所を含み、前記プラテン取付けプレート４が、前記幅方向の内側部分Ｐｉよりも外端Ｅｅで前記長手方向の長さを長くした形状を有する。
Patent WO-2021210468-A1 (WO)
Title: Lighting system
Inventor: MATSUBAYASHI YOKO
IPC: H05B47/105
Filed: 2021-04-07
Abstract: A lighting system (1) is equipped with a first lighting instrument (10) capable of adjusting the amount and color of light to be emitted, and a signal generation unit (31) for generating a first modulated light signal. The first lighting instrument (10) is equipped with a first light source (11) for emitting a first light which has a first light color, and a second light source (12) for emitting a second light which has a second light color which is of a stronger hue than is the first light color. The first lighting instrument (10) is also equipped with a light source control unit (15) which obtains the first modulated light signal from the signal generation unit (31) and adjusts the light amount of the first light source (11) and of the second light source (12) on the basis of the first modulated light signal. The signal generation unit (31) generates a first modulated light signal which repeatedly changes the color of the light emitted by the first lighting instrument (10) between the first light color and the second light color. The color of the light emitted by the first lighting instrument becomes stronger in hue when changing from the first light color to the second light color.
Patent WO-2022230060-A1 (WO)
Inventor: OKABE TOHRU
IPC: H05B33/04
Filed: 2021-04-27
Abstract: The present invention comprises: a TFT layer (30a) which is provided on a base substrate layer (10), in which TFTs (9d, 9f, 9g) are disposed in each of a plurality of sub-pixels that form a display area (D), and in which a flattening film (22a) is stacked on the TFTs (9d, 9f, 9g); and a light-emitting element layer (40a) which is provided on the TFT layer (30a) and in which a plurality of first electrodes (31a), a common edge cover (32a), a plurality of light-emitting function layers (33), and a common second electrode (34) are stacked in the stated order in correspondence to the plurality of sub-pixels. The peripheral edge portion of each of the first electrodes (31a) is provided so as to surround the corresponding TFTs (9d, 9f, 9g) in plan view and protrude toward the base substrate layer (10) side.
Patent WO-2022014137-A1 (WO)
Title: Bright pigment dispersion and method for forming multilayer coating film
Inventor: NARITA NOBUHIKO
IPC: C08K7/00
Filed: 2021-05-17
Abstract: This bright pigment dispersion contains (A) a lubricant, (B) bright pigment flakes, (C) sulfonic acid-modified cellulose nanofibers, and (D) water, wherein the solid content of the bright pigment dispersion, with respect to the total 100 parts by mass of all components, is 0.1 to 10 parts by mass.
Patent WO-2022064764-A1 (WO)
Inventor: NAKANO AKIHIRO
IPC: F24F11/79
Filed: 2021-05-17
Abstract: This floor-type air conditioner comprises: a first blowout port (22b) that blows air-conditioned air out toward a floor; and a control unit that controls a cooling operation in a first blowout mode in which air-conditioned air is blown out from the first blowout port (22b), and a cooling operation in a second blowout mode in which the amount of air blown out from the first blowout port (22b) is reduced compared to the first blowout mode. The control unit switches from the first blowout mode to the second blowout mode when a first condition, including indoor humidity Ha, is satisfied.
Patent WO-2022014157-A1 (WO)
Inventor: TO GENSYU
IPC: H01Q1/32
Filed: 2021-05-21
Abstract: アンテナ装置は、車両における車体の外側の外装部品に搭載されるアンテナ装置であって、放射素子と、放射素子よりも車体側に配置された反射素子とを備える。
Patent WO-2021241481-A1 (WO)
Title: Sealing device
Inventor: WATANABE TOSHIKI
IPC: F16J15/3204
Filed: 2021-05-24
Abstract: A sealing device according to the present invention is disposed between a rotating shaft and an inner surface of a housing and separates an interior space of the housing and an exterior space. The sealing device includes: a cylinder-shaped attachment section that is attached to the inner surface of the housing; a ring-shaped section that spreads radially inward from the attachment section toward the rotating shaft; an inner-side cylindrical section that is supported by the ring-shaped section and that is disposed at the radially inner side of the attachment section; a seal lip that protrudes radially inward from an inner circumferential surface of the inner-side cylindrical section and that is slidably brought into contact with an outer circumferential surface of the rotating shaft; and a garter spring that presses the seal lip against the outer circumferential surface of the rotating shaft. The distance in the axial direction of the rotating shaft between a lip edge of the seal lip and the boundary of the inner-side cylindrical section and the ring-shaped section is 4 mm or longer. The force of the garter spring applied to the inner-side cylindrical section is 22 N or greater.
Patent WO-2021246488-A1 (WO)
Inventor: TAKANO AKIRA
IPC: B65D3/00
Filed: 2021-06-03
Abstract: Le but de la présente invention est de fournir, à l'aide d'un matériau à base de papier, un corps de couvercle ayant une excellente capacité d'étanchéité d'une partie d'embouchure de récipient. Le corps de couvercle selon l'invention doit être fixé de manière amovible à une partie d'embouchure de récipient et est caractérisé en ce qu'il comprend un couvercle supérieur et une paroi latérale qui est constituée d'un matériau à base de papier et formée en une forme de type pente entourant le couvercle supérieur et conique du côté d'extrémité supérieure vers le côté d'extrémité inférieure de celle-ci, le couvercle supérieur et la paroi latérale étant intégrés par assemblage d'une partie montante formée sur le bord périphérique du couvercle supérieur à une surface interne de paroi supérieure de la paroi latérale et une partie de mise en prise destinée à venir en prise avec la partie d'embouchure de récipient est formée sur la périphérie interne d'une paroi inférieure de la paroi latérale.
Patent WO-2021251504-A1 (WO)
Title: Method for predicting development of severe covid-19 utilizing blood rna
Inventor: MIYATO MITSURU
IPC: C12Q1/6883
Filed: 2021-06-14
Abstract: The purpose of the present invention is to provide a method for predicting development of severe illness in patients infected with SARS-CoV-2. As a result of searching for markers for predicting development of severe illness in patients infected with SARS-CoV-2, the inventors discovered that illness subsequently tends to become severe in COVID-19 patients with high levels of miR-122-5p, SNORD33, AL732437.2, RNU2-29P, CDKN2B-AS1, let-7c-5p, miR-21-5p, miR-140-3p, and C5orf66-AS2 contained in their blood. Thus, the present invention provides a method for predicting development of severe illness in COVID-19 patients using these marker RNAs contained in blood exosomes.
Patent WO-2022004451-A1 (WO)
Title: Groove-shaped deck plate
Inventor: YAGUCHI SHIGERU
IPC: E04F13/07
Filed: 2021-06-21
Abstract: [Problem] To provide a groove-shaped deck plate which can improve the appearance of a finished surface exposed to the inside of a building and in which a side of the finished surface exposed to the inside of the building can be directly used as a ceiling surface having a good appearance. [Solution] This grooved deck plate 10A includes: tops 11 that extend in a front-rear direction and are lined up to be separated by predetermined dimensions in a width direction; and grooves 12 that are located between the tops 11, extend in the front-rear direction, are depressed toward the inside of the building, and are lined up to be separated by the predetermined dimensions in the width direction. The grooves 12 each have a pair of leg portions 18 that extend inward of the building from edges 17 of the tops 11 adjacent to each other in the width direction, and a bottom portion 19 that is located between the leg portions 18 and extends in the front-rear direction. In the grooved deck plate 10A, a predetermined ceiling finished material 20 is joined, through a predetermined joining unit, to a side of the finished surface 16 exposed to the inside of the building of the grooved deck plate 10A, and thus a decorative surface of the ceiling finished material 20 forms a ceiling surface of the building.
Patent WO-2022019033-A1 (WO)
Inventor: NAKAHARA HIRONORI
IPC: H04B1/04
Filed: 2021-06-22
Abstract: Le problème décrit par la présente divulgation est de fournir : un dispositif électronique pouvant supprimer le bruit ; et un transducteur électroacoustique. La solution selon la présente divulgation porte sur un dispositif électronique comprenant : un élément de commutation qui applique une tension sur la base d'une alimentation en courant continu à une extrémité d'un transducteur électroacoustique en réponse à un premier signal d'impulsion, et applique une tension sur la base de l'alimentation en courant continu à l'autre extrémité du transducteur électroacoustique en réponse à un second signal d'impulsion ; et un circuit de retard qui génère un retard sur la base d'une fréquence de communication dans le premier signal d'impulsion et/ou le second signal d'impulsion.
Patent WO-2022024607-A1 (WO)
Inventor: HAMAUZU Shinji
IPC: G06Q30/04
Filed: 2021-06-24
Abstract: [Problem] The purpose of the present invention is to provide a refrigerator management system with which it is possible to minimize the payment work of hotel guests utilizing commodities in a refrigerator which is installed in each of a plurality of guest rooms of a lodging facility. [Solution] A refrigerator management system in one embodiment of the present invention individually manages the stock in a plurality of refrigerators installed in each of a plurality of guest rooms of a lodging facility. The refrigerator management system is provided with a management terminal connected to each of the plurality of refrigerators via a network, the refrigerators being provided with a sensor for detecting the motion of a commodity being taken out of a refrigerator by a hotel guest and a payment information transmission unit for transmitting the information for payment of the commodity the motion of which was detected by the sensor to the management terminal, the management terminal being provided with a payment information receiving unit for receiving the information for payment transmitted from the refrigerator and a payment processing unit for processing the payment of the commodity on the basis of the information for payment received by the receiving unit.
Patent WO-2023276102-A1 (WO)
Inventor: MOCHIZUKI CHITOSHI
IPC: G01N21/892
Filed: 2021-07-01
Abstract: L'invention concerne un dispositif de détection d'anomalie destiné à détecter une anomalie de laminage dans la surface d'un matériau 1 à laminer qui est laminé par un laminoir et comprenant : des caméras 81 et 82 pour photographier le matériau 1 à laminer, pour lequel une anomalie doit être détectée ; et un dispositif de traitement d'image 92 pour diviser des données de luminance de pixels qui proviennent d'une image capturée par les caméras 81 et 82 et qui sont dans la plage du matériau 1 à laminer, en trois composants, c'est-à-dire, une valeur R, une valeur G et une valeur B et pour détecter une anomalie de laminage dans la surface sur la base de la relation entre les données de luminance de deux composants parmi les données de luminance des composants. Ainsi, la présente invention fournit un dispositif de détection d'anomalie et un procédé de détection d'anomalie avec lesquels la précision de détection par rapport à une anomalie de laminage dans une feuille peut être améliorée par rapport à l'état de la technique.
Patent WO-2022024997-A1 (WO)
Inventor: AJIOKA NAOMI
IPC: C08K5/17
Filed: 2021-07-26
Abstract: An organic polymer having a reactive-silyl-group-containing group represented by formula (1) (Formula (1): -S(O) b -R 2 -SiR 1 
 a X 3-a  (In the formula, R 1  represents a C1-20 substituted or unsubstituted monovalent hydrocarbon group, R 2  represents a C1-20 substituted or unsubstituted divalent hydrocarbon group, X represents a hydroxyl group or a hydrolyzable group, a is 0, 1, or 2, and b is 1 or 2.)). The polymer backbone of the organic polymer is preferably a polyoxyalkylene-based polymer.
Patent WO-2022050345-A1 (WO)
Title: 固体撮像素子および製造方法
Inventor: TOMIOKA SHUNGO
IPC: H04N5/369
Filed: 2021-09-02
Abstract: 複数の受光素子がマトリクス状に備えられた半導体基板と、複数の受光素子のそれぞれに対応して形成された複数のマイクロレンズとを有する固体撮像素子において、隣接するマイクロレンズの間または境界部に、感光性樹脂からなる突状部が形成されている。
Patent WO-2022065321-A1 (WO)
Title: Cleaning liquid for inkjet printer, cleaning method and storage method for inkjet printer, and liquid set
Inventor: TERANISHI MAKOTO
IPC: C11D3/43
Filed: 2021-09-21
Abstract: Provided are a cleaning liquid including a polyvalent metal salt and water for an inkjet printer, a cleaning method for an inkjet printer using the cleaning liquid, and a storage method for the inkjet printer. A liquid set including the cleaning liquid for an inkjet printer and ink is also provided.
Patent WO-2022145119-A1 (WO)
Title: 電子燃料噴射式ディーゼルエンジン
Inventor: OSO HIROKI
IPC: F02M61/14
Filed: 2021-10-25
Abstract: 精密な電子燃料噴射制御が行える電子燃料噴射式ディーゼルエンジンを提供する。　燃料インジェクタ７は、径大の本体部７ｃと、径小のノズル部７ｄと、本体部７ｃとノズル部７ｄの段差部分に形成された押圧面７ｅを備え、燃料インジェクタ７のノズル部７ｄがスリーブ１０内から挿通孔１ａ内に亘って挿通され、燃料インジェクタ７が押圧力１１で渦室２側に押圧され、燃料インジェクタ７にかかる押圧力１１が燃料インジェクタ７の押圧面７ｅから座金１２を介してスリーブ１０の受圧面１０ｂで受け止められるように構成されている。
Patent WO-2022102433-A1 (WO)
Inventor: ONO TOSHIAKI
IPC: H04N5/3745
Filed: 2021-10-29
Abstract: La présente technologie concerne un dispositif de capture d'image qui fournit une qualité d'image améliorée d'une image capturée. Le dispositif de capture d'image est pourvu : d'une unité de conversion photoélectrique permettant d'effectuer une conversion photoélectrique ; d'un premier condensateur et d'un second condensateur permettant de maintenir un signal provenant de l'unité de conversion photoélectrique ; et d'un commutateur d'initialisation permettant d'initialiser le second condensateur. Une extrémité du premier condensateur, une extrémité du second condensateur et un amplificateur permettant d'amplifier le signal provenant de l'unité de conversion photoélectrique sont connectés. L'autre extrémité du second condensateur et une extrémité du commutateur d'initialisation sont connectées. L'autre extrémité du premier condensateur et l'autre extrémité du commutateur d'initialisation sont connectées à une source de tension. La présente technologie peut être appliquée à un dispositif de capture d'image, par exemple.
Patent WO-2022092302-A1 (WO)
Title: Siloxane dispersed crosslinked separator
Inventor: ZHANG XUN
IPC: H01M50/449
Filed: 2021-10-29
Abstract: The present invention provides a separator for nonaqueous secondary batteries, said separator comprising a silicon-containing (Si-containing) molecule. With respect to an Si-containing image of this separator for nonaqueous secondary batteries as detected by time-of-flight secondary ion mass spectrometry (TOF-SIMS), the Voronoi area (mu) of the most frequent ones among Voronoi polygons that are obtained by Voronoi tessellation of the Si-containing image is within the range of from 1.0 μm2 to 17.5 μm2 or within the range of from 6.0 μm2 to 12.0 μm2, and the spread (σ) of the Voronoi area frequency distribution of the Si-containing image as detected by TOF-SIMS is within the range of from 0.5 μm2 to 8.5 μm2.
Patent WO-2023084568-A1 (WO)
Inventor: TERAO GEN
IPC: G04G9/00
Filed: 2021-11-09
Abstract: 計時時間の計時に関連する情報の入力を簡便にする。　本発明に係る計時装置（１）は、計時される計時時間が表示される計時領域（Ａ１２）と、計時時間の計時に関連する時間目盛が表示される目盛領域（Ａ１１）と、を含む表示領域を備える表示装置（２）と、目盛領域における使用者のタッチ操作を検出する操作検出部（４）と、時間目盛の表示内容を変更する表示制御部（７）と、時間目盛と計時時間とを、前記表示領域に表示する表示部（８）と、を有してなる。表示制御部は、操作検出部により検出されたタッチ操作に基づいて、時間目盛の表示内容を変更する。
Patent WO-2022168386-A1 (WO)
Inventor: NISHIGISHI MAKOTO
IPC: A61M25/00
Filed: 2021-11-09
Abstract: カテーテルであって、シャフトは、ワイヤルーメンと、ワイヤルーメンと並んで配置されたセンサルーメンと、ワイヤルーメンを含みセンサルーメンの先端よりも先端側に突出し、先端においてワイヤルーメンに連通する先端開口が形成された突出部と、突出部よりも基端側に形成された、ワイヤルーメンに連通する切り欠きである第１切欠部とを備える。第１切欠部は、シャフトの側面のうちワイヤルーメンの中心軸を基準として、センサルーメンの反対側に位置する側面に形成されており、シャフトは第１切欠部が形成されている区間において、第１切欠部に対向する底部と、センサルーメンの反対側に向かって延びる一対の側壁を有する。
Patent WO-2022264449-A1 (WO)
Inventor: WADA SHOGO
IPC: B60C15/06
Filed: 2021-11-17
Abstract: 本発明に係る航空機用ラジアルタイヤは、適用リムに組付け、規定内圧を充填し、無負荷とした基準状態における、タイヤ幅方向断面視で、適用リムのリム幅ＲＷとタイヤ最大幅Ｗとが、ＲＷ／Ｗ≦０．７を満たす、航空機用ラジアルタイヤであって、基準状態における、タイヤ幅方向断面視で、トレッド幅ＴＷとタイヤ最大幅Ｗとが、０．７３＜ＴＷ／Ｗ＜０．８を満たす。
Patent WO-2022113868-A1 (WO)
Inventor: YOSHIDA KENICHIRO
IPC: E02F9/16
Filed: 2021-11-18
Abstract: 作業機（１）の操作部材（４１Ｌ、４１Ｒ）の動きを拘束するロック状態とアンロック状態とに切替可能なロック機構（１１４）は、操作部材（４１Ｌ、４１Ｒ）と一体回転する係合部（４５Ｌ、４５Ｒ）と、被係合部（１２６Ｃ）を中間部に有するロック体（１２６）と、ロック体（１２６）を回転可能に支持するロック支軸（１２８）と、ロック体（１２６）に駆動力を付与する駆動部（１３１）とを含み、ロック体（１２６）は駆動力が付与されることで、被係合部（１２６Ｃ）を係合部（４５Ｌ、４５Ｒ）に係合させる位置（Ｐ１）と被係合部（１２６Ｃ）を係合部（４５Ｌ、４５Ｒ）から離脱させる位置（Ｐ２）とに移行する。