baber/WOPTO huggingface dataset:
Patent JP-2015534509-A (JP)
Title: 隣接する、好ましくは交差する構造エレメントを、とりわけ接続するための金属ワイヤの自動撚り装置および方法
IPC: B21F27/08
Filed: 2013-07-25
Abstract: 【課題】撚り作業の反復精度を高める。【解決手段】隣接する、好ましくは交差する構造エレメントをとりわけ接続するための金属ワイヤの自動撚り装置（１）であって、ワイヤ、好ましくはエンドレスワイヤ、を当該装置に供給するためのワイヤ供給部と、選択的に解放および閉鎖可能な開口部（７）を有し、供給されたワイヤを閉鎖された位置で、弓形ワイヤ案内部に沿って当該弓形ワイヤ案内部の第１の側（９）から、前記開口部を基準にして対向する当該弓形ワイヤ案内部の第２の側（１１）に案内するように構成された弓形ワイヤ案内部（５）と、前記供給されたワイヤを前記弓形ワイヤ案内部の第１の側（９）で把持し、当該弓形ワイヤ案内部の第２の側へと引っ張るように構成された引張キャリッジ（２３）と、前記供給されたワイヤを前記弓形ワイヤ案内部の両方の側で把持し、回転運動によって撚るように構成された撚りユニット（２５）と、を備える装置。【選択図】図１
Patent JP-2015535735-A (JP)
Title: ドージングシステム、ドージング方法、および製造方法
IPC: B05D1/26
Filed: 2013-08-22
Abstract: 本発明は、出口開口（１９）を有するノズル（１）を備えるドージングシステム（３）に関し、出口開口（１９）の領域に閉鎖エレメント（２１）が可動に配置され、閉鎖エレメント（２１）は動作中、放出方向（Ｅ）および／または後退方向（Ｒ）に移動され、前記閉鎖エレメント（２１）は、逆方向に接続される少なくとも２つの圧電アクチュエータ（２３ａ、２３ｂ）に結合され、第１の圧電アクチュエータ（２３ａ）は動作中に拡張されると、閉鎖エレメント（２１）を後退方向（Ｒ）に移動させ、第２の圧電アクチュエータ（２３ｂ）は動作中に拡張されると、閉鎖エレメント（２１）を放出方向（Ｅ）に移動させる。また本発明は、このようなドージングシステム（３）を用いて実行され得るドージング方法、およびこのようなドージングシステム（３）の製造方法にも関する。
Patent JP-2015530103-A (JP)
Title: 組換えタンパク質を生産するための方法
IPC: C12N1/15
Filed: 2013-09-30
Abstract: 本開示は、ＮＨＥＪタンパク質又はその機能的断片又はそれらをコードするポリヌクレオチドでトランスフェクトした宿主細胞であって、前記ポリヌクレオチド配列が適切なプロモーターの制御下にあり、対象の少なくとも１つのタンパク質をコードするポリヌクレオチド配列を含む発現カセットでさらにトランスフェクトした宿主細胞、宿主細胞の調製法、調製法において利用するプラスミド及び中間体、並びにタンパク質に発現させるための宿主細胞の使用に関する。
Patent JP-2016500757-A (JP)
Title: アルミニウム合金製真空チャンバ要素
IPC: C25D11/10
Filed: 2013-10-15
Abstract: 本発明は、組成が重量％で、Ｓｉ：０．４〜０．７、Ｍｇ：０．４〜０．７、Ｔｉ：０．０１〜＜０．１５、Ｆｅ＜０．２５、Ｃｕ＜０．０４、Ｍｎ＜０．４、Ｃｒ：０．０１〜＜０．１、Ｚｎ＜０．０４、他の元素は各々＜０．０５、および合計で＜０．１５、残りはアルミニウムである、厚さが少なくとも１０ｍｍに等しいアルミニウム合金製シートメタルの機械加工および表面処理によって作製された真空チャンバ要素に関する。本発明はまた、連続した下記の段階、厚さが少なくとも１０ｍｍの５０００系または６０００系のアルミニウム合金製シートメタルを供給し、前記シートメタルを真空チャンバ要素に機械加工し、前記要素を脱脂および／または酸洗いし、硫酸１００〜３００ｇ／ｌ、およびシュウ酸１０〜３０ｇ／ｌ、および少なくとも一つのポリオール５〜３０ｇ／ｌを含む溶液を使用して、１０〜３０℃の温度で陽極処理を実施し、任意で、好ましくは少なくとも約一時間、少なくとも９８℃の温度で、脱イオン水中でこのように陽極処理された製品を水和させる、ことからなる真空チャンバ要素の製造方法に関する。本発明による製品は、特に改良された均質性の特性、および好ましい腐食耐性を有する。【選択図】なし
Patent JP-2016506773-A (JP)
Title: 陰圧閉鎖療法用の非対称性の吸収性コアを備えるドレッシング
IPC: A61M27/00
Filed: 2014-01-08
Abstract: 減圧を用いて組織部位を治療するシステム、および装置が開示されている。システムは、組織部位に隣接して配置されるように構成されたマニホールドと、組織部位およびマニホールドの上側を覆って配置されるように構成されたシール部材とを含む。システムはまた、シール部材を通ってマニホールドに流体的に結合された減圧源を含む。システムは、さらに、第１の厚さの上流層、第２の厚さの下流層、および上流層と下流層との間に囲まれた吸収部材を有するパウチを含む。第２の厚さは、第１の厚さよりも厚い。上流層は、吸収部材に隣接して親水性側面を有してもよく、および下流層は、吸収部材に隣接して疎水性側面を有してもよい。【選択図】図１
Patent JP-2016509567-A (JP)
Title: 多結晶リチウムマンガン酸化物粒子、その製造方法及びこれを含む正極活物質
IPC: H01M4/505
Filed: 2014-07-25
Abstract: 本発明は、下記式（１）で表される多結晶リチウムマンガン酸化物粒子及びその製造方法を提供する。Ｌｉ（１＋ｘ）Ｍｎ（２−ｘ−ｙ−ｆ）ＡｌｙＭ（ｆ）Ｏ（４−ｚ）（１）前記式で、ＭはＢ、Ｃｏ、Ｖ、Ｌａ、Ｔｉ、Ｎｉ、Ｚｒ、Ｙ及びＧａからなる群より選択されたいずれか一つ、またはこれらのうち２種以上の元素であり、０≦ｘ≦０．２、０＜ｙ≦０．２、０＜ｆ≦０．２及び０≦ｚ≦０．２である。本発明の一実施形態によれば、前記多結晶リチウムマンガン酸化物粒子を構造的に安定化させてヤーン・テラー変形（Ｊａｈｎ−Ｔｅｌｌｅｒ ｄｉｓｔｏｒｔｉｏｎ）とＭｎ２＋の溶出の問題を解決することにより、二次電池の寿命特性及び充放電容量特性を向上させることができる。
Patent JP-2016505377-A (JP)
Title: アクロレインおよびアクリル酸製造用触媒とその製造方法
IPC: B01J37/08
Filed: 2014-05-26
Abstract: 本発明は、アクロレインおよびアクリル酸製造用触媒とその製造方法に関する。本発明による触媒は、機械的物性に優れ、より均一な充填が可能であると共に触媒の崩壊を最少化することができ、より長時間にわたって安定的に使用できる。【選択図】なし
Patent JP-2016195989-A (JP)
Title: Filter element
Inventor: MICHAEL WHITLOCK
IPC: B01D29/07
Filed: 2016-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a new filter element for filtering a fluid.SOLUTION: A filter element includes a pleat-like composite material, and a first end element and a second end element which are attached to a first end part and a second end part arranged on opposite sides of the filter element to each other. The pleat-like composite material includes a filter medium layer, and a grooved mesh drainage layer which is pleated with the filter medium layer. The grooved mesh drainage layer includes a plurality of strands, and a plurality of grooves formed on the strands. The grooved mesh drainage layer guides a fluid through the grooves to the filter medium layer or from the filter medium layer. The filter medium layer removes one or more substances from the fluid flowing through the filter medium layer.SELECTED DRAWING: Figure 1
Patent JP-2017124036-A (JP)
Title: Body support tracking device
Inventor: TAKAHASHI MINORU
IPC: A61G13/00
Filed: 2016-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a body support tracking device capable of easily performing balance check.SOLUTION: A body support tracking device 1 includes: a placement unit 3 for placing a body part; an arm unit 5 having joints 25, 27, 29, 31, 33, 35, 37, 39, and 41 for supporting the placement unit; brake units 53, 55, 57, 59, and 61 for restricting motions of the joints; a brake setting unit for setting an operation state of the brake units; energization units 63, 65 and 67 for energizing the joints; a shape detection unit for detecting the shape of the arm unit; a brake control unit for actuating the brake units when it is detected that the shape of the arm unit is a reference shape in a state that the brake units are not actuated; a shape change detection unit for cancelling the actuation of the brake units and detecting a shape change in the arm unit; and a balance determination unit for determining the propriety of the balance between the arm unit and the placement unit using the detected shape change.SELECTED DRAWING: Figure 2
Patent JP-2016105300-A (JP)
Title: Use control system and use control method
Inventor: SUZUKI KOJI
IPC: G06F21/44
Filed: 2016-01-20
Abstract: PROBLEM TO BE SOLVED: To provide a use management system and the like capable of temporarily using an electronic apparatus via an external network.SOLUTION: A use control method for temporarily allowing the use of an electronic apparatus connected to a first network is provided. A management device receives a use permission request which is transmitted from a first information terminal connected to the first network, issues use permission information, displays it on a first information terminal, and manages the use permission information issued in response to the use permission request. A second information terminal obtains the use permission information that is displayed on the first information terminal and that is input by a user of the second information terminal. The second information terminal which is not connected to the first network transmits the obtained use permission information to the management device via a network. The management device determines whether or not to permit the use of the electronic apparatus by the second information terminal on the basis of the managed use permission information and the use permission information which is transmitted from the second information terminal.SELECTED DRAWING: Figure 8
Patent JP-2017128983-A (JP)
Title: Method for grounding caisson
Inventor: KOTAKE YASUO
IPC: B63B35/44
Filed: 2016-01-22
Abstract: PROBLEM TO BE SOLVED: To provide a method for grounding a caisson, which grounds the caisson while restraining the caisson from being fluctuated by waves, without complication of work.SOLUTION: Each of the amounts of water poured into a plurality of cells 8a-8c provided by partitioning the inside of a new caisson 1 is set on the basis of a wave period when the new caisson 1 is grounded on a foundation mound. Thus, the new caisson 1 is sunk. This enables the new caisson 1 to be grounded on the foundation mound 5 without complication of work while fluctuations caused by waves are suppressed.SELECTED DRAWING: Figure 3
Patent JP-2017131362-A (JP)
Title: Electrostimulator
Inventor: TAMAKI EMI
IPC: A61B5/11
Filed: 2016-01-27
Abstract: PROBLEM TO BE SOLVED: To provide an electrostimulator, regardless of individual differences in thickness of an arm and position of a muscle, causing respective disposed electrodes to appropriately stimulate a targeted muscle.SOLUTION: The electrostimulator includes: a member 100 wound around an arm of a user; a plurality of electrodes 121-128 disposed on one surface 104 of the member; and a plurality of optical distance sensors 141-148 disposed on the one surface of the member. The electrostimulator applies an electric stimulus signal output from an electric stimulus generation circuit, from a specific electrode out of the multiple electrodes to the user so as to apply the stimulus to the muscle of the arm at a position facing the specific electrode, and causes the multiple optical distance sensors to detect displacement of the muscle of the arm. The partial electrodes 122 and 126 out of the multiple electrodes are disposed inclinedly at a prescribed angle less than 90° with respect to the circumferential direction of the user's arm and have a substantially rectangular shape.SELECTED DRAWING: Figure 1
Patent JP-2017132510-A (JP)
Title: Plug driving type resin cap
Inventor: NAKAGAWA TADASHI
IPC: B65D41/48
Filed: 2016-01-28
Abstract: PROBLEM TO BE SOLVED: To provide a plug driving type resin cap which can sufficiently seal a container having a high container internal pressure force of a highly carbonated beverage and the like, and loosens a restriction band after the container internal pressure force is opened without applying an excessive force to the resin cap in opening.SOLUTION: There is provided a plug driving type resin cap 100 which has a cap body 101, a restriction band 200, a tab 130 and a locking protrusion 140, where the restriction band 200 has a circular arc restriction portion 201, a stopper 202 and an upward projecting portion 203, the stopper 202 is formed from both ends in the circumferential direction of the restriction band 201 outward in a radial direction, the locking protrusion 140 is arranged in the vicinity of both of the ends in the circumferential direction of the tab 130 on the outside surface of a skirt wall 120, and the stopper 202 and the locking protrusion 140 are formed in a fittable manner.SELECTED DRAWING: Figure 1
Patent JP-2017136022-A (JP)
Title: Seed pickup device
Inventor: ITOI TAKAAKI
IPC: A01C7/04
Filed: 2016-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a seed pickup device configured to reliably pick up seeds one by one even in a case of fine seeds.SOLUTION: A seed pickup device 1 includes: a hopper 2 for storing a plurality of seeds; a pin 31 provided projectably from a lower end part of the hopper 2; and a suction pump causing a tip end of the pin 31 to suck a seed; and is configured to pick up the seed sucked by the tip end of the pin 31. The seed pickup device further includes a vibratory device 9 for vibrating the hopper 2. Before the pin 31 is projected, the vibratory device 9 is made to stop, and the vibratory device 9 is driven with the pin 31 stored in a guide part 23 of the hopper 2.SELECTED DRAWING: Figure 5
Patent JP-2017140089-A (JP)
Title: Game machine
Inventor: NIIMURA KENJI
IPC: A63F5/04
Filed: 2016-02-08
Abstract: PROBLEM TO BE SOLVED: To provide a game machine capable of improving functions relating to a setting change.SOLUTION: A slot machine 1 includes a RAM 104 including a storage area for storing a setting value and main control means 100 as initialization means for initializing a predetermined range including the storage area for storing the setting value when predetermined conditions are satisfied, permits execution of interruption processing for executing a predetermined process after the initialization means initializes the RAM 104, allows the setting value to be updated within a range of "0" to "N" (however, N is an integer equal to or more than 1), based on operation of a setting change button after permitting execution of interruption processing, determines whether the setting value stored in the RAM 104 is within a range of "0" to "N" and executes error processing when the setting value is determined to be outside the range as a predetermined process.SELECTED DRAWING: Figure 3
Patent JP-2017140215-A (JP)
Title: Cooling device and game machine
Inventor: KATO HISAO
IPC: A63F5/04
Filed: 2016-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a cooling device capable of preventing stagnation of air around a heat source existing at any position in a game machine.SOLUTION: A cooling device includes a rotation body, blades, and a duct member. The rotation body has a cylindrical shape, is assembled to a game machine, and is rotatably supported around a shaft by a support part at a lateral portion. The blades extend outward from the center of the rotation body to generate air current in the shaft direction accompanying the rotation of the rotation body. The duct member receives the air current generated at the blades and flowing via a ventilation hole at the support part to guide the air outward in a radial direction.SELECTED DRAWING: Figure 6
Patent JP-2017142667-A (JP)
Title: Travel device
Inventor: MIYAKE KOJI
IPC: B25J19/06
Filed: 2016-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a travel device capable of ensuring the absolute minimum safety even when a failure occurs in a travel control function or a safety control function.SOLUTION: A travel device comprises: a housing; a travel driving part for causing the housing to travel; a speed sensor for detecting a travel speed of the housing; an obstacle sensor for detecting position information of an obstacle around the housing; a first safety control part for controlling the travel of the housing on the basis of the travel speed and the position information of the obstacle to ensure safety; and a second safety control part for monitoring an operation state of the first safety control part, and for, when finding out abnormality, interrupting power supply to the travel driving part. The second safety control part is configured of parts having higher reliability than parts configuring the first safety control part.SELECTED DRAWING: Figure 4
Patent JP-2017141934-A (JP)
Title: Eccentric joint and uniaxial eccentric screw pump
Inventor: SUHARA NOBUHISA
IPC: F04C2/107
Filed: 2016-02-12
Abstract: PROBLEM TO BE SOLVED: To provide an eccentric joint and a uniaxial eccentric screw pump that can shorten a distance in a pump shaft direction, according to the present invention.SOLUTION: An eccentric joint 120 has: a first connection part 130 comprising first projection parts 134a, 134b and first guide parts 136a, 136b; a second connection part 140 comprising second projection parts 144a, 144b and second guide parts 146a, 146b; and an intermediate body 150 including a first shaft part 152 and a second shaft part 154, the intermediate body 150 transmitting rotation of a drive shaft 56 to a driven shaft 30 while sliding along a slide plane F in a state in which the intermediate body 150 is supported by the first guide parts 136a, 136b and second guide parts 146a, 146b.SELECTED DRAWING: Figure 2
Patent JP-2017140682-A (JP)
Title: Device
Inventor: NEGISHI KATSUHARU
IPC: B23K26/02
Filed: 2016-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a device capable of correctly moving movement means to a prescribed position, or capable of monitoring an operation error without complicating a structure of the device and increasing cost of production of the device.SOLUTION: The device of the invention comprises at least: imaging means for imaging an area where holding means is moved by an operation of movement means; basic image storage means for storing a basic image according to a proper operation of the holding means or action means; and control means for comparing the image imaged by the imaging means with the basic image stored in the basic image storage means, for controlling the movement means or action means, so that both images match.SELECTED DRAWING: Figure 1
Patent JP-2017107827-A (JP)
Title: Positive electrode active material for nonaqueous electrolyte secondary battery, and method for producing the same, and nonaqueous electrolyte secondary battery
Inventor: TAKANASHI SHOJI
IPC: H01M4/505
Filed: 2016-02-12
Abstract: PROBLEM TO BE SOLVED: To provide an excellent positive electrode active material for nonaqueous electrolyte secondary batteries, maintaining initial battery performance at the same level with the initial battery performance included in conventional lithium nickel composite oxide particles and suppressing the gelatinization of a paste-like composition.SOLUTION: There are provided a positive electrode active material for nonaqueous electrolyte secondary batteries, and the like. The positive electrode active material for nonaqueous electrolyte secondary batteries comprises a lithium nickel composite oxide particle which includes a surface layer portion disposed on the surface thereof and a central portion other than the surface layer portion, and which has a composition represented by LiNiCoMMO(where, Mrepresents at least one element selected from the group consisting of Mg, Al, Ca, Ti, V, Cr, Mn, Zr, Nb, Mo and W, Mrepresents at least one element of Al and Nb, and 1.01≤t≤1.20, 0≤x≤0.22, 0≤y≤0.15, 0<z≤0.03 and 0≤α≤0.1 are satisfied.), the Mbeing included in the surface layer portion.SELECTED DRAWING: Figure 1
Patent JP-2016225969-A (JP)
Title: Local oscillation signal level adjustment circuit, local oscillation signal level adjustment method, and radio communication device
Inventor: SATO KAZUTOSHI
IPC: H03G3/20
Filed: 2016-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a local oscillation signal level adjustment circuit capable of adjusting local oscillation signal level in high accuracy.SOLUTION: A local oscillation signal level adjustment circuit 20 includes: a local oscillation circuit 12 for outputting a local oscillation signal; a variable gain amplifier 13 for amplifying level of the local oscillation signal; a frequency conversion circuit 11 for converting a radio signal into an analog baseband signal using the amplified local oscillation signal; an A/D converter 15 for converting the analog baseband signal into a digital baseband signal; and a control circuit 14 for controlling the gain of the variable gain amplifier 13 based on an output code of the digital baseband signal. The control circuit 14 increases the gain of the variable gain amplifier 13 until the output code of the digital baseband signal is saturated.SELECTED DRAWING: Figure 1
Patent JP-2017149560-A (JP)
Title: Corner protector for sling
Inventor: TAKAMIYA MASAFUMI
IPC: B66C1/18
Filed: 2016-02-26
Abstract: PROBLEM TO BE SOLVED: To provide a corner protector for a sling which easily, unfailingly conducts transportation of a cargo with a sling.SOLUTION: A corner protector 1 for a sling includes: a first support member 10 and a second support member 20 which are connected with each other so as to be arranged along a corner part of a transported cargo; and a first guide member 40 and a second guide member 50 which are respectively provided on front surface sides of the first support member 10 and the second support member 20. The first guide member 40 and the second guide member 50 respectively have guide parts 41, 51 for guiding a sling and are rotatably supported by the first support member 10 and the second support member 20 so that guide directions of the guide parts 41, 51 change.SELECTED DRAWING: Figure 1
Patent JP-2017154252-A (JP)
Title: Liquid supply device and liquid jetting system
Inventor: KUDO SHOSHIN
IPC: B41J2/175
Filed: 2016-02-29
Abstract: PROBLEM TO BE SOLVED: To provide a technology that can inhibit liquid surface level of a part where a sensor is disposed in an ink tank from varying in injecting ink from a liquid injection part.SOLUTION: At least one of an air communication passage and a liquid communication passage, as a communication passage, is disposed with an opening/closing mechanism for opening/closing the communication passage that is configured to close the communication passage when a liquid supply device for injecting liquid from a liquid injecting part is in a liquid injection state, and open the communication passage when in a use state.SELECTED DRAWING: Figure 4
Patent JP-2017154258-A (JP)
Title: Image formation apparatus and control method thereof
Inventor: MISUMI KAZUHITO
IPC: G06F3/12
Filed: 2016-02-29
Abstract: PROBLEM TO BE SOLVED: To provide an image formation apparatus which can perform wireless communication and proper switching control of a power-saving mode, and a control method thereof.SOLUTION: A printer includes a sleep mode restricting power supply to an image formation unit and a ready mode not restricting the power supply as operation modes. The printer acquires the reception time and printing time when starting reception of image data via a communication IF during operation in the sleep mode. The reception time is the time required for reception completion of the image data. The printing time is the time required for formation of an image of the image data on a sheet by an image formation unit. The printer shifts from the sleep mode to the ready mode after the elapse of the prescribed time when the reception time is longer than the printing time, and shifts from the sleep mode to the ready mode before the elapse of the prescribed time when the reception time is equal to or shorter than the printing time.SELECTED DRAWING: Figure 6
Patent JP-2017154041-A (JP)
Title: Ion exchange material and method for producing the same
Inventor: TANAKA TOSHIYUKI
IPC: B01J41/02
Filed: 2016-02-29
Abstract: PROBLEM TO BE SOLVED: To provide an ion exchange material having high ion exchange capacity with respect to a phosphate ion and the like, and a method of producing the same.SOLUTION: An ion exchange material for an orthophosphoric acid is a layered double hydroxide [MM(OH)](HCOO)mHO (where, Mis a bivalent metal ion, Mis a trivalent metal ion, 0<x<1, and m is an integer) with an anion between metal hydroxide layers being a formic acid ion. Preferably, 1-propanol is used as solvent in the production thereof.SELECTED DRAWING: Figure 3
Patent JP-2016136404-A (JP)
Title: POS system, registration device, settlement device, and program
Inventor: MORI KUNIO
IPC: G07G1/00
Filed: 2016-03-02
Abstract: PROBLEM TO BE SOLVED: To provide a POS system capable of reducing the operation of a customer in settlement processing.SOLUTION: A POS system includes: a registration device to be operated by a clerk for registering merchandise to be purchased by a customer; and a plurality of settlement devices to be operated by the customer himself or herself for performing settlement on the basis of the registration data of the merchandise. The registration device includes: selection means for selecting the settlement device in an empty state from among the plurality of settlement devices, and for setting the selected settlement device as a transmission destination; transmission means for transmitting registration data such that the settlement processing of the customer is performed by the selected settlement device; holding means for holding the settlement processing based on the registration data in the settlement device. The settlement device includes a predetermined lamp for performing notification by blinking or lighting up, and when receiving the registration data transmitted by the transmission means, allows the predetermined lamp to blink or light up.SELECTED DRAWING: Figure 11
Patent JP-2017155702-A (JP)
Title: engine
Inventor: WATANABE NOBUHIRO
IPC: F01P11/12
Filed: 2016-03-03
Abstract: PROBLEM TO BE SOLVED: To provide an engine, which is not extremely reduced in the suction of cooling air even in the case where dust accumulated to some extent on a cooling air entrance screen, so that it can suppress an output reduction.SOLUTION: An engine 1 comprises: a radiator 9 having a cooling air inlet port 921; a cooing air inlet duct 12 disposed on the entrance side of the cooling air inlet port 921; and a cooling air entrance screen 15 disposed on the entrance side of the cooling air inlet duct 12. The cooling air inlet duct 12 has a cylinder part 122 and a flange part 123. The cooling air entrance screen 15 is constituted to include: an outer frame 152 arranged to protrude along the flange part 123 to the side opposite to the cylinder part 122; an opening 155 formed of the end portion of the outer frame 152 on the side opposite to the cylinder part 122 and made larger than the opening area of the cylinder part 122 on the side of the cooling air entrance screen 15; and an air filter 154 so arranged through a clearance from the flange part 123 as to cover the opening 155.SELECTED DRAWING: Figure 3