baber/WOPTO huggingface dataset:
Patent JP-2014500602-A (JP)
Title: 高いデータ転送速度用の差込みコネクタ
IPC: H01R13/58
Filed: 2011-10-19
Abstract: データセンタにおける高出力差込み接続用に、いわゆるＱＳＦＰ差込みコネクタを提案する。このＱＳＦＰ差込みコネクタは、単一構造の金属製の外側ハウジングを有し、内部に単一構造のロック装置が形成されている。このロック装置は、ロック装置に接合されたタブにより、対応して形成されているケージ状の対応プラグから解除可能である。ロック装置は、角柱案内部により、外側ハウジングの側壁に対応して構成されているスリット内で軸線方向に摺動可能に配置されている。本発明において、銅ベースの二軸式ケーブル接続において直接的な差込みのために、プリント配線板が設けられている。このプリント配線板は、外側ハウジングの内側で、この外側ハウジング内に配置されている導電体に接続されている。導電体は、ケーブル管理体により、軸線方向に方向付けられている条溝においてプリント配線板に接合するために、導電体を取り囲む固定締め具により条溝に保持される。
Patent JP-2014506379-A (JP)
Title: 半透明導波器電磁波プラズマ光源
IPC: H01J65/04
Filed: 2011-12-20
Abstract: 半透明導波器電磁波プラズマ光源装置は、溶解された石英シート製の加工品１と、引き抜き管を有する。内部閉鎖ボイド空間封体２が外径８ｍｍ、内径４ｍｍの引き抜き管で形成される。電磁波励起プラズマ材料が、前記封体の内側で密封される。前記エンドプレート５は円形で、中央の穴に前記封体２が封じられる。前記穴それ自体は引用符号を付けていない。同様のプレート６が、前記封体の内側の端部とそれ自身の間に小さな間隙を有して配置される。二つの管が同心にあり、前記二つのプレートは前記二つの管の中心軸に直角に伸びる。外側の管７は囲い９として、前記内側のプレート６の後側表面から後方に伸びる。この構造は、・前記両プレートの間の、前記封体のボイド空間の周りの、外側の管の内側の環状空洞１１と、・囲われた凹部１３と、を備える。前記囲われた凹部には、前記凹部に滑りばめでぴったりはまる寸法のアルミナ製の直円柱筒状ブロック１４が収容される。Ｔ字ヘッド或いはボタンヘッドを有するアンテナ１８が前記アルミナブロックの前記穴１５と座繰り穴１６に収納される。前記石英加工品１は、前記アルミナブロック１４と共に、前記加工品を前記エンドプレート５で越えて、前記空洞１０の延長用の前記外側の管に沿って後方に広がるファラデー箱２０に収容される。前記ファラデー箱は、前記石英囲い９よりもさらに８ｍｍ後方に広がる穴の開いていない囲い２２を有する。 【選択図】図１
Patent JP-2014504020-A (JP)
Title: 一軸歪み量子井戸デバイス及び当該一軸歪み量子井戸デバイスの作製方法
IPC: H01L29/78
Filed: 2011-12-15
Abstract: 平面又は非平面状量子井戸デバイス及び当該量子井戸デバイスの作製方法。当該デバイスは：バンドギャップの大きな材料を含むバッファ領域；前記バッファ領域上に存在する一軸歪み量子井戸チャネル領域；前記量子井戸チャネル領域上に存在してバンドギャップの大きな材料を含む上部バリア領域；前記量子井戸チャネル領域上に存在するゲート誘電体；前記ゲート誘電体上に存在するゲート電極；並びに、前記ゲート電極の各側部に設けられる凹んだソース領域及びドレイン領域、を有する。前記ソース領域及びドレイン領域は、前記バッファ領域の材料の格子定数とは異なる格子定数を有する接合材料を含む。好適には、前記バッファ領域はSi 1-x Ge x 材料を含み、かつ、前記接合材料はSi 1-y Ge y 材料を含む。ここでyはxよりも大きく、又は、純粋なゲルマニウム、又は、スズとゲルマニウムである。
Patent JP-2014506563-A (JP)
Title: 対流強化送達（ｃｅｄ）による選択的複製性単純ヘルペスウイルスベクターの脳への送達
IPC: A61K47/42
Filed: 2012-01-23
Abstract: 本発明は、アルブミン、および治療剤、特に遺伝子治療ベクターを含む組成物に関する。該組成物は、神経膠腫の治療に有用である。
Patent JP-2014512512-A (JP)
Title: パイプラインにおける漏れ量の判定
IPC: G01M3/28
Filed: 2012-03-31
Abstract: 【課題】  輸送パイプラインにおける流体の漏れ量を求めるための方法及び装置を提供すること。 【解決手段】  本方法は、パイプライン上に配置された少なくとも２つの圧力センサにより検出された負圧波信号を取得することと、負圧波信号に基づいて漏れ位置における圧力信号を求めることと、漏れモデルに従って漏れ位置における圧力信号に基づいて漏れ期間中の漏れ速度を求めることと、漏れ速度及び漏れ期間に基づいてパイプラインにおける流体の漏れ量を求めることと、を含む。提供される装置は、上述の方法に対応する。上述の方法及び装置を使用することにより、輸送パイプラインの漏れ量を得ることができ、パイプラインの漏れプロファイルの理解に役立ち、従って損失を削減することができる。 【選択図】      図１
Patent JP-2014510206-A (JP)
Title: フラップまたはドア用のロック
IPC: E05B85/24
Filed: 2012-02-14
Abstract: 【解決手段】  本発明は、ドアまたはフラップ用のロックに関し、当該ロックは、回転ラッチ（４）と、爪部（６）と、少なくとも１つのバネ（２３）とを有するロック機構を有し、前記バネ（２３）は、バネ力により開始位置から終了位置の方向へ当該ロックの枢動自在な構成要素を枢動させることができる。前記終了位置において、前記枢動自在な構成要素は、前記バネ（２３）のバネ力に作用されない。そのため、特に作動音を低く保つことができる。   【選択図】      図１
Patent JP-2014506104-A (JP)
Title: 異種ワイヤレス通信ネットワーク内のアップリンク制御チャネル受信のための装置、方法、およびシステム
IPC: H04W52/40
Filed: 2012-02-17
Abstract: 異種ワイヤレス通信システムにおけるアップリンク送信の受信を改善するための方法およびシステムは、マクロセルなどの高電力ノードと、フェムトセルまたはピコセルなどの低電力ノードとを含む。近接低電力ノードがＵＥを電力制御し、その結果サービングセルでのＨＳＤＰＡ制御チャネルのアップリンク送信の受信が不十分となる、アップリンク不均衡に対処するために、ＲＮＣは、ＵＥにそのアップリンク送信電力を増大させるように命令するか、ソフトハンドオーバからＵＥを除外するか、または低電力ノードによるＵＥの電力制御を無効にできる。セル間干渉に対処するために、ＲＮＣは、ＵＥの送信電力を制限し、かつ／または犠牲のセルが干渉を抑圧することを可能にできる。さらに、共通制御チャネルは、電力制御に利用可能な従来セットのＵＥの外のＵＥを電力制御するために使用され得る。 【選択図】図１３
Patent JP-2014508160-A (JP)
Title: スキンクリーム
IPC: A61K38/08
Filed: 2011-03-04
Abstract: 本発明は、薬用化粧品を含む局所塗布用のスキンケア組成物に関し、より特定的には、二次元培養において成長させた細胞によって調整される細胞培地を含むスキンクリームに関する。このような組成物の使用方法およびスキンクリームを含むキットも含まれる。
Patent JP-2014115665-A (JP)
Title: Resist composition and method for forming resist pattern
Inventor: SESHIMO TAKEHIRO
IPC: G03F7/004
Filed: 2014-01-07
Abstract: PROBLEM TO BE SOLVED: To provide a novel compound useful as an acid generator for a resist composition, a compound useful as a precursor of the above compound, an acid generator, a resist composition, and a method for forming a resist pattern.SOLUTION: A compound expressed by a general formula (I), and a compound expressed by a general formula (b1-1) are disclosed. In the formulae, Qrepresents a divalent linkage group or a single bond; Yrepresents an alkylene group which may have a substituent or a fluorinated alkylene group which may have a substituent; X represents a cyclic group having 3 to 30 carbon atoms which may have a substituent, and has a -SO- bond in the cyclic structure thereof; Mrepresents an alkali metal ion; and Arepresents an organic cation.
Patent JP-2015130816-A (JP)
Title: Threshing device
Inventor: MATSUBAYASHI TOMOYA
IPC: A01F12/24
Filed: 2014-01-10
Abstract: PROBLEM TO BE SOLVED: To provide a threshing device that can reliably transport a threshing processed product on a terminal side in a processing direction in spite of a receiving net provided with simple measure.SOLUTION: The threshing device includes a feeding member 91 provided at a surface on a side of a threshing cylinder 21 of the receiving net 27 while being inclined relative to a circumferential direction of the threshing cylinder to transport a threshing processed product on the terminal side in the processing direction.
Patent JP-2015132324-A (JP)
Title: Chain continuously variable transmission
Inventor: YAGASAKI TORU
IPC: F16H9/24
Filed: 2014-01-14
Abstract: PROBLEM TO BE SOLVED: To prevent the detachment of a retainer pin welded to a cradle pin in a chain of a chain continuously variable transmission.SOLUTION: A chain 15 of a chain continuously variable transmission T includes a plurality of cradle pins 17 each having both ends in contact with V-surfaces 19 of pulleys 13 and 14; a plurality of link plates 16, 16E endlessly coupling the cradle pins 17; and first and second retainer pins 20A and 20B provided on axial both ends of the cradle pins 17 and locking the end link plates 16E located on the axial end portions, respectively. The first retainer pin 20A is formed integrally with the cradle pins 17, the second retainer pin 20B is formed separately from the cradle pins 17 and welded to the cradle pins 17 after being assembled with the chain 15, and at least one first retainer pin 20A faces each end link plate 16E.
Patent JP-2015132352-A (JP)
Title: Work vehicle, and control method therefor
Inventor: YAMADA KENICHI
IPC: F16H59/44
Filed: 2014-01-15
Abstract: PROBLEM TO BE SOLVED: To provide a work vehicle capable of suppressing an erroneous decision of an automatic shift-down and performing a decision promptly, and a control method therefor.SOLUTION: A control part of a work vehicle executes an automatic downshift for downshifting the speed range of a transmission to a speed range lower than the present speed range. On the basis of an automatic downshift condition, the control part decides the execution of the automatic downshift. The automatic downshift condition contains that the operation quantity of the accelerator operation member is at or more than a predetermined acceleration threshold value, that the vehicle speed is at or lower than a predetermined speed threshold value, and that the acceleration is at or less than a predetermined acceleration threshold value.
Patent JP-2015138072-A (JP)
Title: electronic view finder
Inventor: HASE HIROYUKI
IPC: H04N5/225
Filed: 2014-01-21
Abstract: PROBLEM TO BE SOLVED: To provide an electronic view finder capable of surely closing a gap between components, preventing dust immersion, and breakage due to static electricity, and preventing error detection due to diffusion, without increasing a number of components.SOLUTION: A dustproof part 10a and an insulation part 10b are integrated, and a partition part 10c for partitioning a space between an infrared light emission element 5a and a light receiving element 5b are formed in an integrated state, and the partition part 10c are charged. Therefore, error detection by an optical sensor 5 due to diffusion of a sensor window 8, is prevented.
Patent JP-2015139264-A (JP)
Title: Electric power converter unit and control method of electric power converter unit
Inventor: KAWAMURA TSUNENORI
IPC: H02M3/00
Filed: 2014-01-21
Abstract: PROBLEM TO BE SOLVED: To effectively and reliably protect an electric power converter unit.SOLUTION: A boost chopper of the electric power converter unit boosts a DC power supplied from an overhead wire up to a predetermined voltage value. The inverter converts the DC power outputted from the boost chopper into an AC power to output the same to a transformer. The transformer isolates the AC power which is output from the inverter and outputs the same to a rectification part. The rectification part rectifies the AC power which is output from the transformer to output the same to a load. A first current detection section detects an input current on the boost chopper and outputs a first detection signal; and a second current detection section detects an output current from the rectification part and outputs a second detection signal. An abnormality detection section detects an abnormality on the second current detection section based on the first detection signal and the second detection signal.
Patent JP-2014066254-A (JP)
Title: Micropump
Inventor: MIYAZAKI HAJIME
IPC: F04C5/00
Filed: 2014-01-24
Abstract: PROBLEM TO BE SOLVED: To provide a micropump capable of securing a stable flow rate.SOLUTION: A micropump 10 includes a tube 50, a first cam 20, a second cam 30, and fingers 40-46, and has a first state where the first cam 20 and the second cam 30 are rotated in the direction of an arrow R to successively press the fingers 40-46 to successively and repeatedly close and open the tube 50, so that a liquid is allowed to continuously flow, a second state where only the first cam 20 is rotated in the reverse direction at a time when a through hole 27 formed on the first cam 20 is detected by a light detecting element 80 at a position where the second cam 30 releases pressing of the plurality of fingers 40-46 in the first state, and a third state where the rotation of the first cam 20 is stopped at a time when a position of the through hole 27 in releasing the tube 50 by the first cam 20 is detected by the light detecting element 90 in the second state. Thus deterioration of the tube 50 caused by that the tube 50 is pressed for a long time, can be prevented.
Patent JP-2015140224-A (JP)
Title: picking system
Inventor: WADA NORIHIRO
IPC: B65G1/137
Filed: 2014-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a picking process that reduces an idling time, which can satisfy efficient distribution performed by suppressing a stock to the minimum and frequent and small lot transportation in distribution.SOLUTION: The picking system comprises: a picking process for putting directly articles into an article collection box from a storage shelf without being passed through a temporary placement shelf; a picking process for putting the articles into the article collection box through the temporary placement shelf from the storage shelf; and a control portion that can convert the processes depending on a situation.
Patent JP-2015140709-A (JP)
Title: vane type vacuum pump
Inventor: OTSUKA MASAYA
IPC: F04C29/06
Filed: 2014-01-28
Abstract: PROBLEM TO BE SOLVED: To provide a vane type vacuum pump that can suitably restrain resonance of reed valves that causes unusual noise.SOLUTION: A vane type vacuum pump comprises a discharge port 10 for discharging sucked air and a reed valve part 11 for opening and closing the discharge port 10. The reed valve part 11 comprises a first reed valve 12 installed so as to cover an opening of the discharge port 10 and a second reed valve 13 installed so as to be stacked on the first reed valve 12. The first reed valve 12 and the second reed valve 13 are formed so as to have different resonance frequencies by making plate thicknesses different.
Patent JP-2015140470-A (JP)
Title: Grain oriented silicon steel plate and production method thereof
Inventor: OMURA TAKESHI
IPC: C23C22/00
Filed: 2014-01-30
Abstract: PROBLEM TO BE SOLVED: To propose a method for achieving further low iron loss by suppressing reduction of flux density in a magnetic domain fragmentation material having grooves, and controlling magnetic domain structure.SOLUTION: A grain oriented silicon steel plate is formed by providing a magnetic domain non-continuous part by groove formation on a surface of a grain silicon steel plate. A boundary line between the magnetic domain non-continuous part and magnetic domain continuous part has a wavy part having a basis of a curve whose curvature radius is 0.5 mm or less, and a period of the wavy part is 0.3 times or more and 1.0 time or less of maximum width of the magnetic domain non-continuous part.
Patent JP-2015143531-A (JP)
Title: Work machine control system and low-pressure selection circuit
Inventor: YOSHIDA TOKIYO
IPC: F15B11/00
Filed: 2014-01-31
Abstract: PROBLEM TO BE SOLVED: To regulate the discharge flow of a split flow pump for use in a work machine including a plurality of circuit systems, with a simple configuration.SOLUTION: According to the present invention, a work machine control system comprises: a split-flow hydraulic pump 10 discharging a working fluid from a first discharge port 12 and a second discharge port 13; a first circuit system 20 including a first neutral passage 25 communicating the first discharge port 12 with a tank 19 in a state in which operation valves 21 to 23 are at normal positions; a second circuit system 30 including a second neutral passage 35 communicating the second discharge port 13 with the tank 19 in a state in which operation valves 31 to 34 are at normal positions; and a low-temperature selection circuit 40 selecting the working fluid lower in pressure from between the working fluid downstream of the operation valves 21 to 23 of the first neutral passage 25 and the working fluid downstream of the operation valves 31 to 34 of the second neutral passage 35, the hydraulic pump 10 being regulated to increase a discharge flow thereof if the pressure is lower with the pressure of the working fluid selected by the low-pressure selection circuit 40 used as a pilot pressure.
Patent JP-2015143760-A (JP)
Title: image forming apparatus
Inventor: EBIHARA SHUNICHI
IPC: G03G21/00
Filed: 2014-01-31
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus that can avoid the disadvantage for a user of replacing a replaceable unit before the expiration of the life.SOLUTION: An image forming apparatus includes a replaceable unit, and a control part that holds a history of use of the unit and detects the expiration of the life of the unit from the history of use. At the time the unit is detached from an image forming apparatus body, when the control part has detected from the history of use that the life of the unit has not been expired, the apparatus notifies a user that the unit can still be used.
Patent JP-2015147554-A (JP)
Title: Crawler type irregular ground/off-load work vehicle
Inventor: AOKI HIDEAKI
IPC: B60L50/15
Filed: 2014-02-07
Abstract: PROBLEM TO BE SOLVED: To provide a crawler type irregular ground work vehicle that can stably travel on a sloping ground and an irregular ground whose irregularity is great and has improved operability.SOLUTION: The crawler type irregular ground work vehicle comprises a vehicle body frame, crawler travel devices 30R, 30L, 60R and 60L, a suspending device and an operating device that changes a travel direction and travel speed of a vehicle. The suspending device is constituted of: a pair of left and right towing arms, a swinging arm and a pair of left and right connection arms. Each of the crawler travel devices 30R, 30L, 60R and 60L is driven independently from each other and comprises a control part that controls each of the crawler travel devices 30R, 30L, 60R and 60L.
Patent JP-2015151415-A (JP)
Title: Flame-retardant resin composition, and cable using the same
Inventor: KAWAMOTO SHINJI
IPC: C08L23/08
Filed: 2014-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a flame-retardant resin composition that can ensure even an excellent heat-deformation resistant characteristic while ensuring an excellent flame-retardancy and mechanical property.SOLUTION: A flame-retardant resin composition comprises ethylenic polymer, acid-modified thermoplastic resin, polyethylene having density of 0.950 g/cmor more, and a flame-retardant agent. The ethylenic polymer in the total of 100 mass% of ethylenic polymer, acid-modified thermoplastic resin and polyethylene is 40 mass% or more and 85 mass% or less, the acid-modified thermoplastic resin is 10 mass% or more and 30 mass% or less, and polyethylene is 5 mass% or more and 30 mass% or less, and the flame-retardant agent is compounded in a ratio of 80 pts.mass or more and 96 pts.mass or less per total of 100 pts.mass of ethylenic polymer, acid-modified thermoplastic resin and polyethylene.
Patent JP-2015153862-A (JP)
Title: Surface emission laser array and laser device
Inventor: IZUMITANI KAZUMA
IPC: H01S5/42
Filed: 2014-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a surface emission laser array that can be monolithically connected in series and can suppress deterioration in power conversion efficiency.SOLUTION: A surface emission laser array of the present invention is a surface emission laser array including a plurality of surface emission laser elements formed therein, each of the surface emission laser elements including a laminate including a lower reflection mirror, an active layer and an upper reflection mirror laminated in order therein. The surface emission laser array has: an element part including a plurality of surface emission laser elements; a groove provided to completely separate the laminate in a thickness direction and dividing the element part into a plurality of regions; and a filling material for filling the groove. Each of the regions includes the surface emission laser element, and the surface emission laser elements provided in the regions different from each other are connected in series.
Patent JP-2015153169-A (JP)
Title: Terminal device, information processing device, display control method, and display control program
Inventor: KOGA SHO
IPC: G06K17/00
Filed: 2014-02-14
Abstract: PROBLEM TO BE SOLVED: To realize appropriate display control.SOLUTION: A terminal device includes a recognition part which recognizes a reference object contained in an input image, a determination part which determines whether or not a feature information of the input image used for recognizing the reference object contains a feature information that is based on a non-vacant region information or a vacant region information set to correspond to the discrimination information about the reference object that is recognized, and an image generation part which, based on the determination result by the determination part, generates an image in which the input image is superposed with a content corresponded to the discrimination information.
Patent JP-2015150871-A (JP)
Title: Hollow synthetic resin sheet and box containing the same
Inventor: TERAJIMA SEIJI
IPC: B65D5/43
Filed: 2014-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a hollow synthetic resin sheet consisting of a hollow synthetic resin sheet manufactured by using conventional petroleum-derived ethylene and a resin composition containing polyolefin using a biomass derived ethylene having mechanical properties not inferior to physical property aspect of mechanical properties, and a box containing the same.SOLUTION: A hollow synthetic resin sheet comprises a resin composition containing polyolefin consisting of a monomer having biomass derived ethylene of 5 wt.% or more and having melt flow rate of 1 g/10 min. to 3 g/10 min.
Patent JP-2015149976-A (JP)
Title: Spraying apparatus and boom vibration control device
Inventor: ITO TATSUO
IPC: F15B11/00
Filed: 2014-02-19
Abstract: PROBLEM TO BE SOLVED: To provide a boom vibration control device in which a working fluid is filled in a fluid pressure chamber of the confined side of a fluid pressure cylinder.SOLUTION: A boom vibration control device 7 includes: a fluid pressure cylinder 71 connected with a work vehicle 1 and a boom 6; first accumulator 77 for pressurizing one chamber 75 of the fluid pressure cylinder 71; a second accumulator 78 for pressurizing the other chamber 76 of the fluid pressure cylinder 71; a switching valve 94 for switching between a supply position and a discharge position to supply and discharge a working fluid to one chamber 75; an operation check valve 92 for permitting only a flow from the switching valve 94 to the chamber 75 when the switching valve 94 is in the supply position, and permitting only the flow from one chamber 75 to the switching valve 94 when the switching valve 94 is in the discharge position; an on-off valve 84 for opening and closing a connecting passage 83 to connect a pilot passage 97 with the other chamber 76; and a relief valve 86 for maintaining the working fluid pressure of the connecting passage 83 in a setting pressure. The switching valve 94 is switched to the discharge position to open the on-off valve 84, and thereby the working fluid of the connecting passage 83 maintained in the setting pressure is supplied to the other chamber 76.
Patent JP-2014170538-A (JP)
Title: Font file correction and conversion method, system therefor and computer readable recording medium
Inventor: JOO CHANG YOUNG
IPC: G06F17/21
Filed: 2014-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a font file correction and conversion method for correcting or converting font data already stored in a font file so as to check an error with respect to a result, a system therefor and a computer readable recording medium.SOLUTION: In one embodiment of the present invention, a font file management system comprises: an information read section for reading font data from a font file; an output control section for generating a user interface in such a manner that a user can confirm the font data, and controlling output so as to display the font data on a display section via the user interface; a correction/conversion section for correcting or converting the font data in the case where the user selects the correction or the conversion for the font data via the user interface, and adding the corrected or converted font data to the font file; and an error check section for checking the presence/absence of an error in the corrected or converted font data.
Patent JP-2015162292-A (JP)
Title: magnesium primary battery
Inventor: ITO AYANO
IPC: H01M12/06
Filed: 2014-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a magnesium primary battery which can be activated by just pouring water therein and is arranged so that the gradient of the concentration of an electrolytic solution when pouring water therein can be suppressed.SOLUTION: A magnesium primary battery comprises: a water-insoluble bag body 51; an electrolyte which allows magnesium ions to elute from a magnesium electrode 15, and enclosed in the water-insoluble bag body; and an enclosure 11. The electrolyte is put in the enclosure 11 previously. The magnesium primary battery is activated as a battery by pouring water into the enclosure 11.
Patent JP-2015159746-A (JP)
Title: Forestry machine
Inventor: TAKAYAMA SHUN
IPC: B60Q1/24
Filed: 2014-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a forestry machine which enables an external illumination light to be protected inexpensively.SOLUTION: The invention particularly relates to a forestry machine, which comprises a cabin, a guard member for protecting an anterior window of the cabin, an external illumination light mounted on an upper part of the guard member, and a cover member for protecting the external illumination light. The machine further comprises an angle adjustment mechanism by which the cover member is configured to rotate integrally with the external illumination light. The machine further comprises a rotation regulation member for regulating a rotation range of the cover member, the rotation regulation member being configured to abut against the cover member when the cover member is rotated downward.