baber/WOPTO huggingface dataset:
Patent JP-2018511796-A (JP)
Title: 視覚光、および、赤外の投射されるパターンを検出するためのイメージャ
IPC: G01B11/00
Filed: 2016-03-30
Abstract: 【課題】 深度検知のための方法およびシステムが提供される。【解決手段】 システムは、特定の赤外帯域の中の赤外光を捕捉するように構成される第２の複数のフォト検出器が間に散在する、可視光を捕捉するように構成される第１の複数のフォト検出器を各々が含む、第１および第２の光学センサを含む。システムはさらには、（i）環境の第１の対応するフィーチャを、第１の光学センサにより捕捉される第１の可視光画像と、第２の光学センサにより捕捉される第２の可視光画像との間で識別することと、（ii）環境の第２の対応するフィーチャを、第１の光学センサにより捕捉される第１の赤外光画像と、第２の光学センサにより捕捉される第２の赤外光画像との間で識別することと、（iii）深度推定値を、環境内の少なくとも１つの表面に対して、第１の対応するフィーチャ、および、第２の対応するフィーチャに基づいて決定することとを行うように構成されるコンピューティングデバイスを含む。【選択図】 図６
Patent JP-2018509849-A (JP)
Title: 共有通信媒体上の共存システム同期
IPC: H04W72/04
Filed: 2016-03-22
Abstract: 共有通信媒体上における共存を管理するための技法が開示される。通信媒体を介しての通信のアクティブ期間および非アクティブ期間を規定する時分割多重化(TDM)通信パターンに従って、通信媒体を介してのアクティブ化動作または非アクティブ化動作のためにアクセス端末をそれぞれ構成するアクティブ化コマンドまたは非アクティブ化コマンドを交換することができる。アクティブ化コマンドまたは非アクティブ化コマンドに応答して、確認応答メッセージを、アクセス端末によって送信することができるか、またはアクセス端末から受信することができる。確認応答メッセージがアクティブ化コマンドまたは非アクティブ化コマンドの肯定応答をそれぞれ示すのに応答して、TDM通信パターンに従って通信媒体を介しての通信をアクティブ化または非アクティブ化し、確認応答メッセージがアクティブ化コマンドまたは非アクティブ化コマンドの肯定応答を示さないのに応答して、TDM通信パターンに従って通信媒体を介しての通信をアクティブ化または非アクティブ化しないようにすることができる。
Patent JP-2018515808-A (JP)
Title: サポート装置、リソグラフィ装置およびデバイス製造方法
IPC: H01L21/683
Filed: 2016-03-22
Abstract: 【解決手段】リソグラフィ装置用のサポート装置は、対象物ホルダと、対象物ホルダの径方向外側にある抽出体とを有する。対象物ホルダは、対象物を支持するよう構成される。抽出体は、サポート装置の上面から流体を抽出するよう構成される抽出開口を含む。抽出体は、抽出体が対象物ホルダから実質的に分離されるように対象物ホルダから離間する。抽出体は、突起を備え、その突起が対象物ホルダを囲み、使用時に液浸液の層が突起に保持されて対象物ホルダに支持される対象物と接触するように突起が構成される。【選択図】図５
Patent JP-2018518047-A (JP)
Title: ハードディスクドライブのフレクシャのプラズマ処理
IPC: H05K3/26
Filed: 2016-05-06
Abstract: フレキシブル回路を製造する方法に、大気プラズマ及びイオンビームの少なくとも１つでフレキシブル回路の表面を処理することを含む。大気プラズマは、電極とフレキシブル回路の表面との間にガスの流れを導入することと、電極とフレキシブル回路との間で電圧を発生させてガスからプラズマを生成することとによって形成される。イオンビームのイオンの平均イオンエネルギーは、約５００電子ボルト〜約１，５００電子ボルトの範囲である。【選択図】図１１
Patent JP-2018516187-A (JP)
Title: プリンタ作動要素を駆動するための回路
IPC: B41J2/14
Filed: 2016-06-03
Abstract: プリントヘッドからの液滴吐出のために作動要素の第１および第２のグループを駆動するための回路であって、第１および第２のグループの第１の電極に駆動波形を提供するように構成された駆動回路と、第１および第２のグループの第２の電極に互いに対してバイアスを印加するために、第１または第２のグループの第２の電極に電圧オフセットを提供するように構成された電圧オフセット回路とを含む回路。【選択図】図６
Patent JP-2018517305-A (JP)
Title: オプトエレクトロニクス変換半導体チップの製造方法および変換半導体チップの複合体
IPC: H01L33/50
Filed: 2016-06-10
Abstract: 本発明は、オプトエレクトロニクス変換半導体チップ（６１，６２）を製造する方法であって、以下のステップ、すなわち、Ａ）成長基板（１）を設けるステップと、Ｂ）成長基板（１）の上に半導体積層体（２）を成長させるステップと、Ｃ）成長基板（１）に面している半導体積層体（２）の裏面に電気接触部（３）を形成するステップと、Ｄ）成長基板（１）を薄化するステップと、Ｅ）薄化された成長基板（１）に変換層（４）を形成するステップと、Ｆ）少なくとも２個のオプトエレクトロニクス変換半導体チップ（６１，６２）を製造する目的で、少なくとも薄化された成長基板（１）および半導体積層体（２）を個片化するステップと、を含む、方法、に関する。 【選択図】図３Ｂ
Patent JP-2018527961-A (JP)
Title: 後方反射を低減した光干渉断層撮影プローブ
IPC: A61B1/00
Filed: 2016-06-17
Abstract: 中心空洞を形作るシースと、当該中央空洞内に配置される、ビーム整形要素を形作るビーム整形挿入部と、コアおよびクラッドを有する光ファイバーとを含む、光干渉断層撮影による使用にとって好適なビーム整形光学システムを開示する。当該光ファイバーは、ファイバー端部において局所的に拡張された光ファイバーのコアによりビーム整形要素に向けて電磁ビームを放つように構成された、傾斜させて調製されたファイバー端部を形成する。
Patent JP-2018528279-A (JP)
Title: 官能性架橋樹脂を含有するクレープ加工用接着剤
IPC: C09J177/00
Filed: 2016-06-23
Abstract: クレープ加工用接着剤は、化学式（Ｏ）、（Ｐ）、又は（Ｑ）を有する１種又は複数種の架橋樹脂を含むことができ、式中、ＲＸは、架橋部分であることができ、各ＲＹは、互いに独立に、置換された又は未置換の有機ジイル部分であることができ、各Ａ−は、互いに独立に、アニオンであることができる。このクレープ加工用接着剤は、約１００グラム重〜約３００グラム重の円筒プローブ接着力を有することができる。このクレープ加工用接着剤は、約２０ｇ／ｃｍ〜約１１０ｇ／ｃｍの剥離接着力を有することができる。
Patent JP-2019122138-A (JP)
Title: Motor device and manufacturing method therefor
Inventor: SUDO MASASHI
IPC: H02K15/14
Filed: 2018-01-05
Abstract: To provide a motor device capable of suppressing distortion of a cover even when a shape of the cover is complicated, and capable of sufficiently smoothing a welded portion of the cover.SOLUTION: A portion where a first fixing portion 71b of a cover member 70 is provided is wider than a portion other than the portion where the first fixing portion 71b of the cover member 70 is provided, and a wide portion 71d is provided that is in contact with a connector member and positions the connector member with respect to a connector housing portion, and therefore, the wide portion 71d can be used as a pressing portion (pressing point OP) of a push-out pin. Thereby, even when a shape of the cover member 70 is complicated, distortion of the cover member 70 can be suppressed, and a welded portion (first fixing portion 71b) of the cover member 70 can be sufficiently smoothed.SELECTED DRAWING: Figure 13
Patent JP-2018087339-A (JP)
Title: Coating compositions for building materials and coated building material substrates
Inventor: JEFFREY H PEET
IPC: B32B27/30
Filed: 2018-01-05
Abstract: PROBLEM TO BE SOLVED: To provide coating compositions which can be used on porous substrates particularly porous nonwoven substrates, while providing desired water vapor permeance at a low relative humidity.SOLUTION: A coating composition to selectively retard water vapor as a function of humidity when cured into a barrier layer comprises: a. a hydrophobic component including a latex; and b. a hydrophilic component including a polyvinyl alcohol, polyvinylpyrrolidone, starch, cellulose, polyacrylate, polyacrylic acid, highly carboxylated latex, amine, inorganic hydrophilic filler, polyethylene oxide, vinyl ether, highly hydrolyzed polymer, polysaccharide or combination thereof. The water-vapor permeability according to ASTM E96 at 21°C after curing the composition applied onto kraft paper is about 1 perm or less at 25% average RH and about 15 perms or more at 95% average relative humidity.SELECTED DRAWING: Figure 2
Patent JP-2019123781-A (JP)
Title: Aqueous inkjet ink composition
Inventor: SEGUCHI KENICHI
IPC: C09D11/30
Filed: 2018-01-15
Abstract: To provide an aqueous inkjet ink composition which allows an image recorded on a recording medium to have improved abrasion resistance and improves continuous discharge stability from a nozzle of an inkjet head.SOLUTION: The aqueous inkjet ink composition according to the present invention contains composite resin fine particles comprising a first resin and a second resin and having an SP value of 9.0-12.0 (cal/cm). The SP value of the second resin is higher than that of the first resin. The mass ratio of the first resin is larger than that of the second resin.SELECTED DRAWING: None
Patent JP-2019123589-A (JP)
Title: Sheet carrier and image forming apparatus
Inventor: MIYAZAWA TORU
IPC: B65H5/06
Filed: 2018-01-16
Abstract: To provide a sheet carrier capable of suppressing the increase of size and cost of an apparatus due to a provision of a sensor on a transport passage.SOLUTION: A sheet carrier is adapted to drive rollers corresponding to numbers N and N+1 when an operation of an image forming apparatus 100 is resumed (powered ON), so that a presence/absence of a residual paper is detected based on a deviation Δθ in a motor driving a roller corresponding to a number N. Thus, a sheet remaining in the transport passage is detected based on a signal outputted from a motor controller instead of a sensor such as a photo-sensor. As a result, it can be determined whether or not a sheet is nipped by a transport roller without increasing the size or cost of the apparatus.SELECTED DRAWING: Figure 8
Patent JP-2019123359-A (JP)
Title: Crossing gate
Inventor: HASEGAWA TOSHIAKI
IPC: B61L29/04
Filed: 2018-01-16
Abstract: To provide a crossing gate that is hardly affected by disturbance including a difference in temperature, and capable of reliably detecting breakage of a blocking bar.SOLUTION: A guide groove 25 is formed on a blocking bar 3 of a crossing gate over an approximately whole length thereof, conductive paint 27 is applied inside the guide groove 25, and a conductive path 28 is formed by a paint film. The conductive path 28 is connected to a breakage detecting circuit 9. When the blocking bar 3 is broken, the paint film of the conductive paint 27 (conductive path 28) is blocked, so that damage by breakage of the blocking bar 3 can be reliably sensed by detecting, by means of the breakage detecting circuit 9, breakage of conduction of the conductive path 28 or an increase in electrical resistivity. Since the conductive paint 27 is light in weight, it is not necessary to adjust a driving part or a weight of the blocking bar 3 when the blocking bar 3 is applied to an existing crossing facility.SELECTED DRAWING: Figure 2
Patent JP-2019127052-A (JP)
Title: Shear for aircraft decomposition and work vehicle for aircraft decomposition
Inventor: TAKAKURA YOSHIAKI
IPC: B64F1/22
Filed: 2018-01-22
Abstract: To provide a shear for aircraft decomposition suitable for decomposing an aircraft such as a passenger aircraft using an aluminum alloy with high strength.SOLUTION: A shear for aircraft decomposition comprises: a shear blade of a first jaw part 25 having a tip blade whose cutting tip enters a shear object, a pair of first shear blades 32 which are bent in an obtuse angle relative to an entry direction of the tip blade and are arranged on opposite surfaces of a blade width, and a pair of second shear blades 33 which are bent in an obtuse angle relative to a first shear blade attachment parts and are arranged on opposite surfaces of the blade width; and a shear blade of a second jaw part 26 having a groove part for receiving all of the tip blade, the pair of first shear blades, and part of the pair of second shear blades so as to pass through, a tip blade receiving blade positioned on an inner wall face of the groove part of the area other than the area where the first shear blades pass, a pair of first shear blade receiving blades 36 positioned along an inner wall face of the groove part of the area where both outer peripheral faces of the first shear blades pass, and a pair of second shear blade receiving blades 37 positioned along an inner wall face of the groove part on the area where both outer peripheral faces of the second shear blades pass.SELECTED DRAWING: Figure 2
Patent JP-2019128626-A (JP)
Title: Fire warning facility
Inventor: MATSUDA YOSHIHIRO
IPC: G08B25/04
Filed: 2018-01-22
Abstract: To enable a receiver side to easily recognize a disconnection section when a disconnection failure occurs in a loop transmission path and signal transmission is made possible from both sides of a disconnection part so as to continue fire monitoring.SOLUTION: Fire sensors 18 are connected to a loop transmission path 12 connected to a receiver 10. When the loop transmission path 12 is in a normal state, communication connection is performed to the fire sensors 18 from a transmission unit 23 so as to monitor a fire. When a disconnection failure occurs in the loop transmission path 12, a disconnection monitoring control unit 28 turns on changeover circuits 30a and 30b and connects a terminal end of the loop transmission path 12 to the transmission unit 23. Communication connection is performed to the fire sensors 18 from both ends of the loop transmission path 12 so as to monitor a fire. The loop transmission path 12 includes repeaters 20 for detecting a current normal direction in a normal case and a current reverse direction when a disconnection occurs and transmitting them to the receiver 10. When a disconnection occurs in the loop transmission path 12, a disconnection section determination unit 32 determines that a section where a current normal direction detected by the multiple repeaters 20 is changed into a current reverse direction as a disconnection section and reports it.SELECTED DRAWING: Figure 1
Patent JP-2019134361-A (JP)
Title: Amplification device and electromagnetic wave irradiation equipment
Inventor: SOGA IKUO
IPC: H03F3/24
Filed: 2018-02-01
Abstract: To provide an amplifier in which efficiency is improved, by processing harmonics well.SOLUTION: An amplifier includes a base metal plate 12 of ground potential, an amplifier 20 including multiple transistors 21, and an output side matching section 40 performing impedance matching of the output from the amplifier. The output side matching section includes a matching circuit board 42 where a dielectric substrate 44, having a transmission line 46 connected with the output electrode 24 of the amplifier on the top face, is provided on the top face of the base metal plate, and a matching circuit board 52 for impedance matching of harmonic wave provided while intersecting the matching circuit board 42, provided with a metal film 56 having one end connected with the transmission line and the other open end and a metal film 58 of the ground potential while sandwiching a dielectric substrate 54. In a second direction intersecting the first direction where the amplifier and the matching circuit board 42 are arranged, the metal film 56 is connected with the transmission line from one end side to the other end side of the amplifier, substantially in parallel therewith.SELECTED DRAWING: Figure 2
Patent JP-2019002905-A (JP)
Title: Tactile force sense sensor, method for manufacturing the same and detection method using tactile force sense sensor
Inventor: TOMITA YOSHIHIRO
IPC: G01L5/16
Filed: 2018-02-02
Abstract: To provide a tactile force sense sensor capable of detecting not only pressing force but shear stress or slide friction; a method for manufacturing the tactile force sense; and a detection method using the tactile force sense.SOLUTION: A tactile force sense sensor 100a includes a first sheet 1 having at least one of flexibility and elasticity and a second sheet 2 arranged on the first sheet 1 and having at least one of the flexibility and elasticity. The second sheet 2 has a plurality of projections 3 on a surface on the side opposite to a surface facing the first sheet 1; at least one of second electrode patterns 5a and 5b are arranged on the inner surfaces of the plurality of projections 3; the second sheet 2 and the first sheet 1 are fixed; and a sealed space 4 is included between the inner surface of the projection 3 and the first sheet 1.SELECTED DRAWING: Figure 1
Patent JP-2019138629-A (JP)
Title: Rotation angle sensor and robot using the same
Inventor: NAGAI TAKAHIRO
IPC: B25J19/02
Filed: 2018-02-06
Abstract: To provide a sensor for remotely recognizing a joint state quantity of an arm installed in a high radiation environment.SOLUTION: Rotation is measured with a propagation time of a pair of propagation wave sensors (15, 16). The pair of propagating wave sensors is installed at a focal region of an elliptical plate (11) in which a transmission side has a rotating unit so that the transmission direction changes with rotation, and the other reception side can receive in wide angle. When a shape of the receiving side is circular, the rotation angle is measured using a delay time of a propagation wave signal by shifting the circle center from the ellipse focus, and the state of linear motion joints and rotary joints is detected.SELECTED DRAWING: Figure 1
Patent JP-2019138008-A (JP)
Title: Roof material cutting machine
Inventor: HIRAKU MASARU
IPC: B23D29/02
Filed: 2018-02-07
Abstract: To provide a roof material cutting machine capable of reducing a risk of a movable blade dropping abruptly to enable improvement of the freedom of preparation work after raising the movable blade.SOLUTION: A roof material cutting machine according to the present invention is a roof material cutting machine 1 for cutting a roof material 10, the roof material cutting machine comprising: a cutting machine body 3 having a fixed blade 342; a movable blade 2 attached to the cutting machine body 3 so as to be rotatable around a shaft part 22 provided on the side of one end in the longer direction thereof, where pressing down the side of the other end in the longer direction thereof from a state in which the side of the other end is raised makes the movable blade together with the fixed blade 342 cut the roof material 10; and a rotation holding mechanism 346 for holding a rotation position of the movable blade 2 at at least one position in a state in which the side of the other end is raised.SELECTED DRAWING: Figure 1
Patent JP-2019136258-A (JP)
Title: Game machine
Inventor: OGURA TOSHIO
IPC: A63F7/02
Filed: 2018-02-09
Abstract: To provide a game machine with an improved presentation effect.SOLUTION: When a super ready-to-win A is to occur, as shown at (C), a character 31AK001, which is a friendly character, is displayed in an image display device 5 and a ready-to-win presentation is started. When a prescribed time is elapsed from a start of the ready-to-win presentation, such as a termination of an introduction portion of the ready-to-win presentation, a title 31AK002 of the super ready-to-win A is displayed across the whole screen of the image display device 5 as shown at (D), and from a speaker 8, a sound corresponding to the title name of the ready-to-win is outputted. Thereby, the title of the super ready-to-win A is notified.SELECTED DRAWING: Figure 9
Patent JP-2019139972-A (JP)
Title: Nonaqueous electrolyte solution secondary battery
Inventor: KASHIWAZAKI EIKO
IPC: H01M50/489
Filed: 2018-02-09
Abstract: To provide a nonaqueous electrolyte solution secondary battery capable of suppressing a drop in the charging capacity after high-rate discharge.SOLUTION: The nonaqueous electrolyte solution secondary battery includes: a separator for nonaqueous electrolyte solution secondary battery having at least 0.2 N of a peel strength measured at a blocking test and containing a polyolefin porous film with at most 15% of a change rate of piercing strength before and after the blocking test; and a nonaqueous electrolyte solution containing a predetermined additive agent of 0.5 ppm to 300 ppm.SELECTED DRAWING: None
Patent JP-2018077259-A (JP)
Title: Calculation apparatus and calculation method
Inventor: SUGIYAMA NOBUKATSU
IPC: H01M10/48
Filed: 2018-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a calculation apparatus capable of precisely comprehending open circuit potential without depending on an initial charge amount while preventing increase in data storage area.SOLUTION: A calculation apparatus includes a first calculation section that calculates relationship between a charge amount and potential corresponding to an arbitrary initial charge amount on the basis of relationship between the charge amount and the potential at a charging side of an electrode included in a secondary battery and relationship between the charge amount and the potential at a discharge side of the electrode.SELECTED DRAWING: Figure 1
Patent JP-2018086318-A (JP)
Title: Game machine
Inventor: MIYANAGA MAKOTO
IPC: A63F7/02
Filed: 2018-02-14
Abstract: PROBLEM TO BE SOLVED: To improve ease of work when mounting a second game component to a first game component.SOLUTION: When a second game component is mounted to a first game component, a game machine performs positioning for restricting the movement of the second game component to the first game component. As such positioning, the game machine restricts the movement of the second game component to the first game component to a first range, and restricts the movement of the second game component to a second range narrower than the first range in a state, where the movement of the second game component is restricted to the first range.SELECTED DRAWING: Figure 9
Patent JP-2019145612-A (JP)
Title: Semiconductor module and manufacturing method thereof
Inventor: NISHIDA YUHEI
IPC: H05K3/28
Filed: 2018-02-19
Abstract: To provide a semiconductor module with improved bondability between an insulating substrate and a sealing resin and a manufacturing method thereof.SOLUTION: A semiconductor module 50 includes an insulating substrate 23, a circuit pattern 24 formed on the insulating substrate, semiconductor elements 25 and 26 bonded on the circuit pattern, and a sealing resin 28 that seals the insulating substrate, the circuit pattern, and the semiconductor element. The surface 23a of the insulating substrate in a portion where the insulating substrate and the sealing resin are in close contact with each other has the average roughness of 0.15 μm or more obtained in a range of 300 μm width, and the average roughness 0.02 μm or more obtained in a range of 3 μm width in the cross section of the insulating substrate.SELECTED DRAWING: Figure 1
Patent JP-2019142540-A (JP)
Title: Packaging bag resealable by chuck
Inventor: SATO MASAKAZU
IPC: B65D33/00
Filed: 2018-02-20
Abstract: To provide a resealable packaging bag with use of a chuck which easily releases fitting of a chuck, has a simple structure, has no hindrance to putting in and out of a storage article, and has no restriction to a storage method for an original article.SOLUTION: A resealable packaging bag 1 in which a lip 12 covering a chuck 16 which is provided on an upper opening part inner surface of a bag body comprising a front sheet 10 and a back sheet 11, is so provided as to extend from the back sheet 11, and the lip 12 is bonded a surface of the front sheet 10 by an adhesive member 17 or a heat-sealing of a side part, thereby sealing the chuck 16. In this packaging bag, the lip 12 is provided with a perforation 18 as easy excision means at a position deviated from a front sheet upper end 10a at the upper opening part.SELECTED DRAWING: Figure 1
Patent JP-2019146034-A (JP)
Title: Water section equipment
Inventor: TSUNODA HIDENORI
IPC: E03C1/05
Filed: 2018-02-21
Abstract: To provide water section equipment which can suppress a cost increase in managing, manufacturing or constructing the water section equipment having a plurality of slaves.SOLUTION: The water section equipment includes a plurality of slaves and a master communicating with the plurality of slaves to control the plurality of slaves. The master has an automatic slave address determination mode to transmit a survey signal to each of the plurality of slaves to determine a slave address of a slave, among the plurality of slaves, having replied to the survey signal. In the automatic slave address determination mode, the master transmits the survey signal for a plurality of times, and on determining that all of the plurality of slaves have replied to the survey signal, completes the automatic slave address determination mode.SELECTED DRAWING: Figure 5
Patent JP-2019148989-A (JP)
Title: Electronic control device for vehicle
Inventor: BABA TOSHIMITSU
IPC: B60R16/02
Filed: 2018-02-27
Abstract: To provide an electronic control device for a vehicle capable of suppressing operation of a driving device and diagnosing presence/absence of output abnormality of a plurality of interrupt signals.SOLUTION: An electronic control device for a vehicle comprising a control unit outputting, to a driving device, a driving signal driving the driving device and a plurality of interrupt signals disabling the driving signal, is characterized in that the control unit outputs a first interrupt signal among the plurality of interrupt signals with the driving signal, and outputs remaining interrupt signals obtained by removing the first interrupt signal from the plurality of interrupt signals without outputting the driving signal after diagnosing abnormality of an output function of the first interrupt signal according to operation of the driving device, and diagnoses abnormality of output functions of the remaining interrupt signals according to state signals indicating states of the remaining interrupt signals.SELECTED DRAWING: Figure 7
Patent JP-2019152453-A (JP)
Title: Measuring tool
Inventor: SAKAI Daito
IPC: G01C15/06
Filed: 2018-02-28
Abstract: To provide a measuring tool which hardly causes a prism mirror to be out of position and come off even when an object to be measured operates and can reduce a possibility that the prism mirror is broken when an impact load acts thereon.SOLUTION: A measuring tool comprises: a target member 50 which holds a prism mirror 51 and which has an end surface 56 which is disposed on a mirror vertex side in an axial direction of the prism mirror 51 and in which a plunger 54 with a ball 54a is provided; an attachment member 60 which has an outer surface 60a1 in which a through-hole 61 engaged by the ball is provided; a clamp 71 which fixes the attachment member 60 to an object to be measured so that an operation plain face of a work device 1A and the outer surface 60a1 are disposed in parallel; and a magnet 80 which detachably couples the target member 50 to the attachment member 60 in a state where the ball 54a is engaged with the through-hole 61.SELECTED DRAWING: Figure 3