WO2005117194A1 - 燃料電池用締め付け工具 - Google Patents
燃料電池用締め付け工具 Download PDFInfo
- Publication number
- WO2005117194A1 WO2005117194A1 PCT/JP2005/007441 JP2005007441W WO2005117194A1 WO 2005117194 A1 WO2005117194 A1 WO 2005117194A1 JP 2005007441 W JP2005007441 W JP 2005007441W WO 2005117194 A1 WO2005117194 A1 WO 2005117194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- rotor
- fuel cell
- tightening
- input
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/069—Multi-spindle machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/141—Mechanical overload release couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a fuel cell tightening tool for simultaneously tightening a number of stacked unit cells using a plurality of fasteners.
- a polymer electrolyte fuel cell (PEFC) has been known as one of the fuel cells.
- This polymer electrolyte fuel cell (hereinafter sometimes simply referred to as a fuel cell) is formed by laminating a number of flat unit cells (unit cells).
- a fuel cell in order to operate it while maintaining its performance at a high level, it is necessary to apply a predetermined surface pressure to the stacked unit cells and tighten them in the stacking direction.
- the fuel cell expands and contracts particularly in the stacking direction due to heat generation and heat radiation during operation, it is general to apply a predetermined tightening force while following this expansion and contraction (for example, see Japanese Patent Publication No. No. 54713).
- the stacked unit batteries When fastening the stacked unit batteries using a plurality of fasteners, the stacked unit batteries must be tightened in order to uniformly apply the surface pressure to the unit batteries while keeping the fastening force of each fastener even. It is preferable to perform the work of tightening each fastener while separately using a press machine or the like. However, there is a problem that such work increases the number of man-hours for assembling the fuel cell.
- the present invention provides a fuel cell tightening tool that can reduce the number of assembly steps of a fuel cell while keeping the tightening force of a plurality of fasteners uniform.
- the present invention provides a method for simultaneously tightening a number of stacked unit batteries using a plurality of fasteners.
- the fastening tool for a fuel cell includes a plurality of socket members which are respectively engaged with the respective fasteners so as to transmit a torque, rotors respectively provided on the socket members, and a torque for applying a torque for rotating the respective rotors.
- Input means and torque input means force A torque transmission mechanism that distributes the input torque and transmits it to each rotor and uniformly rotates each rotor, and is provided between each socket member and the rotor.
- the socket member When the tightening torque for rotating the rotor is equal to or less than a predetermined value, the socket member is rotated together with the rotor, and when the tightening torque is larger than the predetermined value, the clutch for idling the rotor with respect to the socket member. And a mechanism.
- FIG. 1 is a perspective view of a fuel cell and a tightening tool according to an embodiment of the present invention.
- FIG. 2 is a top view of the tightening tool.
- FIG. 3 is a sectional view taken along line AA in FIG. 2.
- FIG. 4 is an exploded explanatory view of a torque wrench of the tightening tool. Explanation of reference numerals
- the fuel cell tightening tool indicated by reference numeral 10 in FIG. 1 is configured to simultaneously tighten a number of stacked unit cells 2 using a plurality of fasteners 5 along the stacking direction when assembling the fuel cell 1. I have.
- the fuel cell 1 is a well-known polymer electrolyte fuel cell comprising a number of rectangular flat unit cells (unit cells) 2 stacked and sandwiched between a pair of clamping plates 3 and 4. 1 (PE),
- a plurality of fasteners 5 are provided in parallel around the fuel cell 1. Both ends of each fastener 5 are connected to the outer peripheral portions of the respective tightening plates 3 and 4 to generate a tightening force for compressing between the respective tightening plates 3 and 4.
- Each of the fasteners 5 is arranged such that four are arranged at substantially equal intervals on the long side of the unit cell 2 and three are arranged at substantially equal intervals on the short side thereof. A total of ten are provided.
- the tightening force of each fastener 5 is applied to each unit battery 2 via both fastening plates 3 and 4 to generate a uniform surface pressure on each unit battery 2.
- Each fastener 5 is attached to each fastening plate 3 in the stacking direction of the unit cells 2.
- the unit battery 2 is tightened visibly by mainly using a stud bolt 6 penetrating through the nut 4 and a nut 7 screwed to the stud bolt 6, and a compression coil panel 8 interposed between the nut 7 and the tightening plate 3. .
- the stacking direction of the unit batteries 2 will be described as the vertical direction, the head 6a side of the stud bolt 6 (the tightening plate 4 side) will be below, and the nut 7 side (the tightening plate 3 side) will be above.
- the stud bolt 6 penetrates the tightening plates 3 and 4 along the vertical direction with the lower part of the neck directed upward from below the lower tightening plate 4 to above the upper tightening plate 3.
- a nut 7 is screwed into a part of the stud bolt 6 projecting upward from the upper clamping plate 3, and a compression coil panel 8 is interposed between the nut 7 and the clamping plate 3.
- the lower end of the compression coil panel 8 contacts the upper surface of the clamping plate 3, and the upper surface contacts the lower surface of the nut 7 via the flat washer 9. Due to the elastic force of the compression coil panel 8 in the extension direction, the upper clamping plate 3 is urged downward, and the lower clamping plate 4 is moved upward via the nut 7 and the stud bolt 6. When energized, the clamping plates 3, 4 clamp the unit cell 2 between them.
- the torque required to tighten the nut 7 increases and decreases in proportion to the increase and decrease in the elastic force of the compression coil panel 8. In other words, the tightening torque increases or decreases according to the reaction force received from the unit battery 2 tightened by the fastener 5.
- the tightening tool 10 receives a torque from a single handle (torque input means) 12, and simultaneously operates a plurality of torque wrenches 20 provided on each fastener 5 to apply this torque to each fastener 5. And simultaneously tighten the nuts 7 of the fasteners 5 with a predetermined tightening torque.
- the tightening tool 10 includes a box-shaped frame 11 having a flat rectangular parallelepiped appearance in a vertical direction that substantially overlaps with the tightening plates 3 and 4 in a top view.
- a torque input shaft 13 having a rotation axis extending in the vertical direction is disposed in a central portion of the frame 11.
- the outer periphery of the frame 11 has a plurality of tors having a rotation axis also in the vertical direction.
- a wrench 20 is provided.
- the torque input shaft 13 is rotatably supported by the frame 11.
- the upper end of the torque input shaft 13 projects upward from the upper wall 11 a of the frame 11 and is connected to the base of the handle 12. That is, a desired torque can be input to the torque input shaft 13 by operating the handle 12.
- the torque input to the torque input shaft 13 is distributed via a torque transmission mechanism 15 including a plurality of gears.
- the allocated torque is transmitted to the input rotor (rotor) 21 of each torque wrench 20.
- the torque transmission mechanism 15 includes an input gear 16 that is coaxially fixed to the torque input shaft 13, a relay gear 17 that is arranged on four sides of the input gear 16 and engages with the input gear 16, and a relay gear 17 that is adjacent to the input gear 16. And a corresponding output gear 18.
- the output gear 18 is formed integrally with the input rotor 21 of each torque wrench 20.
- the input gear 16 is larger than the relay gear 17 and the output gear 18, and increases the angular velocity of each torque wrench 20 with respect to the angular velocity of the handle 12.
- Each of the relay gears 17 is rotatably supported by the frame 11, and each of the torque wrench 20 located at a corner of the frame 11 and two torque wrenches 20 adjacent thereto is connected to a total of three output gears 18. They are arranged to match. Therefore, the center output gear 18 of the three torque wrenches 20 located on the short side of the unit battery 2 is engaged with the two relay gears 17.
- each torque wrench 20 When a clockwise torque is input to the torque input shaft 13 from the top view using the handle 12, the input rotor 21 of each torque wrench 20 via the input gear 16, each relay gear 17, and each output gear 18. Similarly, the clockwise torque is transmitted to each input rotor 21 to rotate in the same manner. That is, each torque wrench 20 operates in conjunction with the rotation of the torque input shaft 13.
- each torque wrench 20 includes a socket member 22 engaged with a nut 7 of a corresponding fastener 5 so as to transmit torque, the input rotor 21, and the input rotor 21. And a clutch mechanism 23 interposed between the socket member 22 and the torque transmission between them.
- the socket member 22 is rotatably supported by the frame 11, and is connected to a socket body 24 provided so as to protrude downward from a lower wall portion l ib of the frame 11, and is connected to an upper end of the socket body 24.
- a lower support portion 25, an input shaft portion 26 connected to the upper end of the lower support portion 25, and an upper support portion 27 connected to the upper end of the input shaft portion 26 are integrally formed.
- the socket body 24 is a cylindrical shape with a bottom that is opened by downward force, and has a relatively thick bottom wall 24a and a relatively thin peripheral wall 24b.
- the rotation axis of the socket body 24 coincides with the rotation axis of the socket member 22.
- the lower support portion 25 is coaxial with the socket body 24 and is formed in a small-diameter cylindrical shape.
- the lower support portion 25 is rotatably supported by the lower wall portion l ib of the frame 11 via a bearing 28 fitted on the outer peripheral surface.
- the input shaft portion 26 has a rod-like shape in which the upper end force of the lower support portion 25 also extends to the vicinity of the upper wall portion 11a of the frame 11, and has a substantially chamfered section 26a having a flat chamfered portion 26a on one side of a cylinder coaxial with the socket member 22. It is formed in a mold. At the upper end of the input shaft 26, a male screw 26b having a thread is formed on the outer periphery thereof.
- the upper support 27 has a columnar shape coaxial with the input shaft 26 and is rotatably supported by the upper wall 1 la of the frame 11 via a bearing 29 fitted on the outer peripheral surface.
- a C-clip 27a is attached to the upper end of the upper support 27.
- the C-clip 27a and the upper end of the socket body 24 abut on the frame 11 via the flanges of the bearings 28 and 29, whereby the socket member 22 is positioned in the vertical direction with respect to the frame 11.
- the input rotor 21 is supported on the input shaft 26 of the socket member 22 so as to be relatively rotatable around the rotation axis of the socket member 22.
- the input rotor 21 has a cylindrical shape through which the input shaft 26 can pass, and the output gear 18 is formed on the lower outer peripheral portion thereof.
- Disc-shaped thick plate washers 31, 32 are arranged above and below the input rotator 21, respectively. Each of these thick plate washers 31 and 32 has substantially D-shaped through holes 31a and 32a that match the cross-sectional shape of the input shaft 26. By allowing the input shaft 26 to pass through the through holes 31a and 32a, each of the thick plate washers 31 and 32 is allowed to move relative to the input shaft 26 in the vertical direction. It is attached to the input shaft 26 with its rotation restricted. [0030] A plurality of dish panels 33, 34 are interposed between the input rotator 21 and the thick plate washers 31, 32. Specifically, between the input rotator 21 and the upper thick plate washer 31, two counterpanes 33 whose outer peripheral side is higher than the central side are stacked. Between the input rotator 21 and the lower thick plate washer 32, three dish panels 34 whose outer peripheral side is lower than the central side are stacked.
- the force plate springs in which the dish panels 33 and 34 are arranged above and below the input rotor 21 may be simply arranged above or below the input rotor 21.
- a wrench nut 35 is screwed into the male screw portion 26b of the input shaft portion 26.
- an upper thick plate washer 31 and two counterpanes 33 are provided between the lower surface of the wrench nut 35 and the upper surface of the input rotator 21, and two counterpanes 33 are provided.
- a lower thick plate washer 32 and three dish panels 34 are provided between the upper surface of the lower support portion 25 and the lower surface of the input rotor 21, and three dish panels 34 are provided. That is, the thick plate washers 31, 32, the counterpanes 33, 34 and the input rotor 21, which are arranged between the lower surface of the wrench nut 35 and the upper surface of the lower support 25, move the wrench nut 35 and the lower It is sandwiched between the support part 25 and.
- Such a clutch mechanism 23 adjusts the amount of tightening of the wrench nut 35 with respect to the male screw portion 26b and changes the elastic force of each of the counterspanes 33 and 34, so that the input rotor 21 and the socket member 22 To increase or decrease the frictional engagement force (clutch capacity) with. That is, the upper limit value of the tightening torque that can be transmitted between the input rotor 21 and the socket member 22 is set, and when a torque exceeding the upper limit value is applied, the clutch mechanism 23 is slipped to rotate the input rotation. The relative rotation of the child 21 and the socket member 22 makes torque transmission therebetween impossible.
- the fuel cell tightening tool 10 in the above embodiment is for simultaneously tightening a large number of unit cells 2 stacked using a plurality of fasteners 5,
- a socket member provided corresponding to the component 5 and engaged with the component so as to be able to transmit torque.
- a torque transmission mechanism 15 for distributing the torque input from the handle 12 as a torque input means and transmitting the torque to an input rotor 21 provided corresponding to each socket member 22;
- a clutch mechanism 23 provided between the input rotor 21 and the input rotor 21.
- the clutch mechanism 23 disconnects the socket member 22 together with the input rotor 21.
- the input rotor 21 is idled with respect to the socket member 22 while rotating.
- the fasteners 5 when assembling the fuel cell 1, the fasteners 5 are temporarily assembled to the stacked unit cells 2 and then simultaneously tightened, so that the fastening force of the fasteners 5 is equalized. It is possible to apply a uniform surface pressure to the unit battery 2 while maintaining the pressure.
- the unit cells 2 stacked at the time of assembling the fuel cell 1 do not need to be separately tightened using a press or the like. Therefore, there is an effect that the number of assembling steps of the fuel cell 1 can be reduced.
- the present invention is not limited to the above embodiment.
- an electric or pneumatic torque input means may be employed instead of the handle 12.
- the tightening force of the fastener 5 may be adjusted by tightening the head 6a side of the stud bolt 6 instead of the nut 7 side.
- the torque transmission mechanism 15 may be a combination of a chain and a sprocket or a combination of a belt and a pulley.
- a configuration using a coil panel instead of a flat panel panel may be used as the urging means of the clutch mechanism 23, a configuration using a coil panel instead of a flat panel panel may be used. It is desirable to use a countersunk panel in that the total length of each torque wrench 20 in the vertical direction can be suppressed.
- a guide or the like for stabilizing the fuel cell 1 may be provided on the frame 11.
- the fuel cell 1 can be fitted inside the guide, so that the frame 11 is stabilized and the fuel cell 1 Can be tightened.
- the fuel cell is a body to be tightened by the tightening tool, but the body to be tightened is not limited to the fuel cell.
- the unit cells stacked at the time of assembling the fuel cell are tightened by using a separate press machine or the like!
- the surface pressure can be applied evenly, and the fasteners can be simultaneously and evenly tightened after absorbing the unevenness of the temporarily assembled state of the fasteners, so that the number of assembling steps of the fuel cell can be significantly reduced.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05734635A EP1753065A4 (en) | 2004-05-26 | 2005-04-19 | FIXING TOOL FOR FUEL CELL |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004156327A JP4667766B2 (ja) | 2004-05-26 | 2004-05-26 | 燃料電池用締め付け工具 |
JP2004-156327 | 2004-05-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005117194A1 true WO2005117194A1 (ja) | 2005-12-08 |
Family
ID=35451188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007441 WO2005117194A1 (ja) | 2004-05-26 | 2005-04-19 | 燃料電池用締め付け工具 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1753065A4 (ja) |
JP (1) | JP4667766B2 (ja) |
WO (1) | WO2005117194A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009090376A (ja) * | 2007-10-03 | 2009-04-30 | Honda Motor Co Ltd | 燃料電池セル締結用ピン打ち工具 |
CN106964973A (zh) * | 2017-05-17 | 2017-07-21 | 深圳市山龙智控有限公司 | 螺丝锁付机构及螺丝机 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100710274B1 (ko) | 2005-12-29 | 2007-04-20 | 재단법인서울대학교산학협력재단 | 연료전지 스택의 체결 구조 |
KR100746270B1 (ko) | 2006-01-20 | 2007-08-03 | 재단법인서울대학교산학협력재단 | 연료전지 스택의 체결 장치 |
JP4989161B2 (ja) * | 2006-09-08 | 2012-08-01 | 本田技研工業株式会社 | 燃料電池スタック |
JP5737000B2 (ja) * | 2011-06-21 | 2015-06-17 | トヨタ自動車株式会社 | 多軸仮締め工具 |
FR3012189A1 (fr) * | 2013-10-22 | 2015-04-24 | Ct Tech Des Ind Mecaniques | Dispositif de serrage a douilles multiples |
JP6467681B2 (ja) * | 2014-12-26 | 2019-02-13 | マグネクス株式会社 | 固体酸化物型燃料電池 |
KR101836251B1 (ko) * | 2015-07-31 | 2018-03-08 | 현대자동차 주식회사 | 연료전지 스택 조립 장치 |
WO2019089414A1 (en) * | 2017-11-01 | 2019-05-09 | Superbolt, Inc. | A system for simultaneously pre-set torqueing and tensioning a multi-jackbolt tensioner |
CN108202220B (zh) * | 2017-12-29 | 2019-06-25 | 乐清野岛机电有限公司 | 一种断路器底座自动打螺丝机 |
CN108637304A (zh) * | 2018-05-24 | 2018-10-12 | 西安航空职业技术学院 | 一种数控加工装置 |
DE102018210179A1 (de) * | 2018-06-22 | 2019-12-24 | Audi Ag | Brennstoffzellenstapel |
DE102018210176A1 (de) | 2018-06-22 | 2019-12-24 | Audi Ag | Brennstoffzellenstapel |
DE102018210181A1 (de) | 2018-06-22 | 2019-12-24 | Audi Ag | Brennstoffzellenstapel |
GB2580107B (en) * | 2018-12-21 | 2021-04-28 | Caterpillar Energy Solutions Gmbh | Apparatus for simultaneously actuating at least two screw tensioning devices |
CN110900175A (zh) * | 2019-11-21 | 2020-03-24 | 安徽枫雅轩科技信息服务有限公司 | 一种电池模组装配工装 |
TWM607734U (zh) * | 2020-05-29 | 2021-02-11 | 盟立自動化股份有限公司 | 拆裝設備 |
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JP2000067887A (ja) * | 1998-08-20 | 2000-03-03 | Matsushita Electric Ind Co Ltd | 固体高分子型燃料電池 |
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2004
- 2004-05-26 JP JP2004156327A patent/JP4667766B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-19 WO PCT/JP2005/007441 patent/WO2005117194A1/ja not_active Application Discontinuation
- 2005-04-19 EP EP05734635A patent/EP1753065A4/en not_active Withdrawn
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JPS59108279A (ja) * | 1982-12-10 | 1984-06-22 | Sanyo Electric Co Ltd | 燃料電池スタツクの圧縮装置及び圧縮方法 |
JP2000067887A (ja) * | 1998-08-20 | 2000-03-03 | Matsushita Electric Ind Co Ltd | 固体高分子型燃料電池 |
JP2000067903A (ja) * | 1998-08-20 | 2000-03-03 | Matsushita Electric Ind Co Ltd | 固体高分子型燃料電池 |
JP2000208163A (ja) * | 1999-01-19 | 2000-07-28 | Ishikawajima Harima Heavy Ind Co Ltd | 燃料電池締付装置 |
JP2001155760A (ja) * | 1999-10-22 | 2001-06-08 | General Motors Corp <Gm> | 燃料電池スタックの圧迫方法及び装置 |
JP2002302785A (ja) * | 2001-04-04 | 2002-10-18 | Mitsubishi Heavy Ind Ltd | 固体高分子水電解セル構造体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1753065A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009090376A (ja) * | 2007-10-03 | 2009-04-30 | Honda Motor Co Ltd | 燃料電池セル締結用ピン打ち工具 |
CN106964973A (zh) * | 2017-05-17 | 2017-07-21 | 深圳市山龙智控有限公司 | 螺丝锁付机构及螺丝机 |
Also Published As
Publication number | Publication date |
---|---|
JP2005339958A (ja) | 2005-12-08 |
EP1753065A1 (en) | 2007-02-14 |
EP1753065A4 (en) | 2010-03-24 |
JP4667766B2 (ja) | 2011-04-13 |
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