WO2015141278A1 - ダイアフラムの固定構造、それを備えたダイアフラムポンプ及び弁装置、並びにダイアフラムの固定方法 - Google Patents
ダイアフラムの固定構造、それを備えたダイアフラムポンプ及び弁装置、並びにダイアフラムの固定方法 Download PDFInfo
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- WO2015141278A1 WO2015141278A1 PCT/JP2015/051851 JP2015051851W WO2015141278A1 WO 2015141278 A1 WO2015141278 A1 WO 2015141278A1 JP 2015051851 W JP2015051851 W JP 2015051851W WO 2015141278 A1 WO2015141278 A1 WO 2015141278A1
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- frame
- diaphragm
- chamber
- arm portion
- case
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/0009—Special features
- F04B43/0054—Special features particularities of the flexible members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
- F04B43/14—Machines, pumps, or pumping installations having flexible working members having peristaltic action having plate-like flexible members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1087—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/02—Diaphragms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/022—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising a deformable member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
- F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0641—Multiple-way valves the valve member being a diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/10—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member
- F16K31/105—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid with additional mechanism between armature and closure member for rotating valves
Definitions
- the present invention relates to a diaphragm fixing structure for fixing a diaphragm that partitions a space into a first chamber and a second chamber in a case that forms a space therein, a diaphragm pump and a valve device including the diaphragm fixing method, and a diaphragm fixing method. .
- Patent Document 1 discloses a diaphragm pump having a structure in which a diaphragm is sandwiched and fixed by a pair of frames. In this diaphragm pump, the frames are coupled to each other by a plurality of pairs of screws and nuts in order to suppress fluid leakage at the peripheral edge of the diaphragm.
- the fluid leakage is caused by a lack of the whole or a part of the force with which the pair of frames compress the diaphragm. Therefore, in the diaphragm fixing structure, a large number of screws and nuts are used in order to compress the diaphragm evenly with a sufficient force.
- the diaphragm fixing structure increases the number of parts, which is a cause of hindering cost reduction of the diaphragm pump and the valve device.
- the screw and nut fastening work is time-consuming and burdens the operator, and increases the number of steps required to assemble the diaphragm pump and the valve device.
- the present invention has been devised in view of the actual situation as described above, and provides a diaphragm fixing structure and the like that can reduce costs by reducing the number of parts and facilitating assembly.
- the main purpose is to reduce costs by reducing the number of parts and facilitating assembly.
- the present invention is a diaphragm fixing structure for fixing a diaphragm for partitioning the space into a first chamber and a second chamber in a case that forms a space therein, and the case forms the first chamber side.
- a first frame having a first recess, and a second frame having a second recess forming the second chamber side, wherein the first frame is a first frame body facing the second frame;
- a plurality of first arm portions provided intermittently along an outer edge of the first frame body and extending toward the second frame, wherein the second frame faces the first frame.
- a plurality of second arm portions provided intermittently along the outer edge of the second frame body and extending toward the first frame, and by fitting the first frame and the second frame.
- the diaphragm And a fastener that clamps the first arm and the second arm from the outside of the case while the peripheral edge of the frame is compressed and held between the first frame and the second frame. It is characterized by having.
- the first arm portion and the second arm portion are provided with a displacement prevention means for holding the position of the fastener.
- the misalignment prevention means includes a first retaining protrusion protruding outward from the case on the second frame body side relative to the fastener provided on each first arm portion. It is preferable that a second retaining protrusion projecting outward from the case on the first frame main body side than the fastener provided on each second arm portion is included.
- the misalignment preventing means is an annular groove extending along the outer edge of the case on the outer peripheral surfaces of the first arm portion and the second arm portion.
- first arm portion and the second arm portion are alternately provided along an outer edge of the case.
- the first arm portion and the second arm portion are provided continuously along the outer periphery of the case.
- the peripheral portion of the diaphragm is continuously provided with a thick portion having a large thickness.
- a positioning ditch for arranging the thick portion is formed in the first frame and / or the second frame.
- the present invention is the diaphragm pump having the diaphragm fixing structure according to any one of claims 1 to 8, wherein the first frame has a first port communicating with the first chamber, The two frames have a second port communicating with the second chamber.
- the first chamber is supplied with fluid for driving the diaphragm via the first port, and the second chamber is supplied to the second chamber. Is characterized in that the fluid to be treated flows in and out through the second port.
- the present invention is a valve device having the diaphragm fixing structure according to any one of claims 1 to 8, wherein a driving means for driving the diaphragm is provided in the first chamber of the first frame.
- the second frame has an inflow port for allowing fluid to flow into the second chamber and an outflow port for allowing fluid to flow out from the second chamber, and the outflow port has a valve seat formed around it.
- the diaphragm is seated or separated from the valve seat to open and close the outflow port.
- the present invention relates to a diaphragm fixing method for fixing a diaphragm for partitioning the space into a first chamber and a second chamber in a case that forms a space therein, and the case forms the first chamber side.
- a first frame having a first recess, and a second frame having a second recess forming the second chamber side, wherein the first frame is a first frame body facing the second frame;
- a plurality of first arm portions provided intermittently along an outer edge of the first frame body and extending toward the second frame, wherein the second frame faces the first frame.
- the present invention is a diaphragm fixing structure for fixing a diaphragm for partitioning a space into a first chamber and a second chamber in a case that forms a space therein, and the case has a first recess that forms the first chamber side. And a second frame having a second recess forming the second chamber side.
- the peripheral edge of the diaphragm is compressed and held between the first frame and the second frame by fitting the first frame and the second frame. Thereby, the leak of the to-be-processed fluid in the peripheral part of a diaphragm is suppressed.
- the first frame has a first frame body that faces the second frame, and a plurality of first arm portions that are intermittently provided along the outer edge of the first frame body and extend toward the second frame.
- the two frames include a second frame body that faces the first frame, and a plurality of second arm portions that are provided intermittently along the outer edge of the second frame body and extend toward the first frame.
- the diaphragm pump of the present invention includes the diaphragm fixing structure, and a fluid for driving the diaphragm is supplied to the first chamber of the first frame via the first port, and the second chamber of the second frame is provided.
- the fluid to be processed flows in and out through the second port. This makes it possible to deliver the fluid to be processed in an accurate amount with a diaphragm pump having a simple and inexpensive configuration.
- the valve device includes the diaphragm fixing structure, wherein the first chamber of the first frame is provided with driving means for driving the diaphragm, and the second frame flows fluid into the second chamber. And an inflow port for allowing fluid to flow out of the second chamber.
- the outflow port has an opening in which a valve seat is formed, and the diaphragm is seated on or separated from the valve seat to open and close the outflow port.
- the diaphragm fixing method of the present invention includes a frame fitting process for fitting the first frame and the second frame. Thereby, the first frame and the second frame are firmly fitted with sufficient force. Furthermore, since this fixing method includes a diaphragm holding step of compressing and holding the peripheral edge of the diaphragm between the first frame and the second frame, leakage of the fluid to be processed at the peripheral edge of the diaphragm is suppressed. . Furthermore, the fixing method includes a fastener mounting step of mounting a fastener from the outside of the case and tightening the first frame and the second frame to realize a strong fitting state. The second frame is firmly integrated with each other, and the leakage of the fluid to be processed at the peripheral edge of the diaphragm is further suppressed.
- FIG. 4 is a cross-sectional view of the diaphragm of FIG. 3 taken along the line AA.
- FIG. 4 is a sectional view of the diaphragm of FIG. 3 taken along line BB.
- FIG. 3 is an assembled perspective view of the diaphragm pump of FIG. 2.
- FIG. 7 is a perspective view of the first case or the second case of FIG. 6. It is sectional drawing of the diaphragm of FIG.
- FIG. 10 is a perspective view of the case of FIG. 9. It is an assembly perspective view of the case of FIG.
- FIG. 1 shows a schematic configuration of a diaphragm pump 1 according to the first embodiment of the present invention.
- the diaphragm pump 1 sends a fluid to be processed such as a sample in a fixed amount.
- the diaphragm pump 1 includes a case 2 that forms a space 20 therein, and a diaphragm 3 that partitions the space 20 into a first chamber 21 and a second chamber 22.
- the fluid such as gas is filled in and discharged from the first chamber 21, the fluid to be processed is sent out from the second chamber 22.
- the volume of the fluid to be delivered is determined by the volume of the space 20 and the volume of the diaphragm 3 occupying the space 20.
- FIG. 2 and 3 show the outer appearance of the diaphragm pump 1.
- 4 and 5 show a cross section taken along line AA and a line BB of the diaphragm pump 1 shown in FIG.
- FIG. 6 is an assembled perspective view of the diaphragm pump 1.
- the diaphragm 3 is fixed to the case 2 by a fixing structure 4.
- the case 2 of the diaphragm pump 1 includes a first frame 5 having a first recess 50 and a second frame 6 having a second recess 60.
- the first frame 5 and the second frame 6 are fitted to each other, and a strong fitting state is realized via the fastener 7.
- the first recess 50 forms a space 20a on the first chamber 21 side.
- the second recess 60 forms a space 20b on the second chamber 22 side.
- the 1st recessed part 50 and the 2nd recessed part 60 are arrange
- the 1st recessed part 50 and the 2nd recessed part 60 are formed in the mortar shape.
- the materials constituting the first frame 5 and the second frame 6 are set in consideration of chemical resistance and the like.
- PP polypropylene
- POM polyacetal
- PEEK polyetheretherketone
- PPS polyphenylene sulfide
- PTFE polytetrafluoroethylene
- the diaphragm 3 includes a film part 31 that partitions the space 20 into a first chamber 21 and a second chamber 22, and a peripheral part 32 formed on the outer peripheral edge of the film part 31. Have. The peripheral edge 32 is sandwiched between the first frame 5 and the second frame 6. When the film part 31 is elastically deformed, the volumes of the first chamber 21 and the second chamber 22 are alternately increased or decreased.
- the peripheral edge 32 of the diaphragm 3 is compressed and held between the first frame 5 and the second frame 6 by fitting the first frame 5 and the second frame 6 together. Thereby, the leakage of the to-be-processed fluid in the peripheral part 32 of the diaphragm 3 is suppressed.
- Diaphragm 3 includes, for example, ethylene-propylene-diene (EPDM), fluorine-based rubber (FKM, FPM, FFKM), hydrogenated nitrile rubber (HNBR), butylene-based rubber (IIR), or silicone rubber (VMQ) as a rubber component. It is comprised by the elastic material containing 1 or more types of these. When a rubber material containing a double bond in the polymer main chain is used, the polymer main chain may be broken during long-term use, and the durability performance of the diaphragm 3 may not be maintained.
- ethylene-propylene-diene is particularly preferable from the viewpoints of gas barrier properties, heat resistance, chemical resistance, and production cost.
- FIG. 7 shows the first frame 5.
- the first frame 5 is in a state in which the first recess 50, the first frame body 51 that faces the second frame 6, and the second frame 6 are prevented from being detached.
- the first recess 50 is formed on the inner end surface of the first frame body 51 that faces the second frame 6 across the diaphragm.
- the first frame body 51 is formed in a substantially cylindrical shape.
- a plurality of first arm portions 52 are provided intermittently along the outer edge of the first frame body 51.
- the first frame 5 and the second frame 6 are formed in the same shape. Therefore, the first frame 5 and the second frame 6 can be manufactured by the same mold, and the manufacturing cost of the diaphragm pump 1 can be reduced.
- the second frame 6 includes a second frame body 61 that faces the first frame 5 and a second arm portion 62 that holds the first frame 5 in a retaining state.
- a second recess 60 is formed on the inner end surface of the second frame body 61 facing the first frame 5.
- the second frame body 61 is formed in a substantially cylindrical shape.
- a plurality of second arm portions 62 are provided intermittently on the outer edge of the second frame body 61.
- the second frame 6 When the first frame 5 and the second frame 6 are fitted together, the second frame 6 is held in a retaining state by the frictional force generated between the first arm portion 52 and the second frame 6. . Furthermore, a strong fitting state between the first frame 5 and the second frame 6 is realized by the frictional force generated between the second arm portion 62 and the first frame 5.
- Fasteners 7 are attached to the first arm portion 52 and the second arm portion 62 from the outside of the case 2.
- a snap ring made of an elastically deformable metal is applied as the fastener 7.
- the fastener 7 may be configured to be detachable from the first arm portion 52 and the second arm portion 62.
- the first arm portion 52 and the second arm portion 62 are tightened by the fastener 7 and the first frame 5 is held in a retaining state. Is done.
- the 1st frame 5 and the 2nd frame 6 are fitted and integrated, without fastening a screw and a nut. Therefore, it is possible to reduce the number of parts of the fixing structure 4 of the diaphragm 3, facilitate assembly, and reduce costs.
- the configuration of the diaphragm pump 1 can be made simple and inexpensive.
- the first arm portion 52 is provided with a misalignment prevention means 53 for holding the position of the fastener 7.
- the misalignment prevention means 53 includes first retaining protrusions 54 that project outward from the case 2 on the second frame body 61 side with respect to the fastener 7 provided on each first arm portion 52.
- the second arm portion 62 is provided with a misalignment prevention means 63 for holding the position of the fastener 7.
- the misalignment prevention means 63 includes a second retaining protrusion 64 that projects outward from the case 2 on the first frame body 51 side with respect to the fastener 7 provided on each second arm portion 62.
- the outer side of the second arm portion 62 is formed in a step shape.
- the inner side of the second arm portion 62 is also formed in a staircase shape.
- the fastener 7 urges the first retaining protrusion 54 toward the tip of the first arm portion 52 and also causes the second retaining protrusion 64 to move to the second arm. It is biased toward the tip of the part 62.
- the first frame body 51 and the second frame body 61 are brought into close contact with each other, and the peripheral edge 32 of the diaphragm 3 is sandwiched between the first frame body 51 and the second frame body 61 in a compressed state. Therefore, the leakage of the fluid to be processed at the peripheral edge 32 of the diaphragm 3 is further suppressed.
- misalignment prevention means 53 and 63 are not limited to the first retaining protrusion 54 and the second retaining protrusion 64 described above, and may be any form having a function for holding the position of the fastener 7.
- the misalignment prevention means 53 and 63 may be annular grooves (not shown) extending along the outer edges of the case 2 on the outer peripheral surfaces of the first arm portion 52 and the second arm portion 62. The annular groove also holds the position of the fastener 7, and the urging force generated by the fastener 7 enhances the adhesion between the first frame body 51 and the second frame body 61, and the peripheral edge of the diaphragm 3. The leakage of the fluid to be processed in the portion 32 is further suppressed.
- the first frame 5 has a first port 57 communicating with the first chamber 21.
- a nipple 58 for connecting a pipe (not shown) is formed at the tip of the first port 57.
- a gas for driving the diaphragm 3 flows into and out of the first chamber 21 through the piping and the first port 57.
- the first arm portion 52 is provided to avoid interference with the nipple 58.
- the first port 57 extends along the end surface of the cylindrical first frame 5 and communicates with the nipple 58 formed on the side surface. It may be a form extending toward the end face of one frame 5. In this case, the nipple 58 is formed on the end face of the first frame 5.
- the second frame 6 has a second port 67 communicating with the second chamber 22.
- a nipple 68 for connecting a pipe (not shown) is formed at the tip of the second port 67.
- the fluid to be processed flows into and out of the second chamber 22 via the pipe and the second port 67.
- the second arm portion 62 is provided to avoid interference with the nipple 68.
- the first frame 5 and the second frame 6 are fitted with their positions aligned so that the nipple 58 and the nipple 68 overlap in plan view.
- the second port 67 extends along the end surface of the cylindrical second frame 6 and communicates with the nipple 68 formed on the side surface.
- a form extending toward the end face of the two frames 6 may be employed.
- the nipple 68 is formed on the end surface of the second frame 6.
- the first arm portion 52 and the second arm portion 62 are alternately provided along the outer periphery of the case 2.
- the peripheral edge portion 32 of the diaphragm 3 can be compressed uniformly, and the leakage of the fluid to be processed at the peripheral edge portion 32 of the diaphragm 3 is further suppressed.
- the first arm portion 52 and the second arm portion 62 are continuously provided along the outer periphery of the case 2.
- the peripheral edge 32 of the diaphragm 3 can be evenly compressed with a sufficient force, and leakage of the fluid to be processed at the peripheral edge 32 of the diaphragm 3 is further suppressed.
- a third recess 59 is formed between the adjacent first arm portions 52 of the first frame 5.
- the third recessed portion 59 is formed in a step shape with a shape corresponding to the second arm portion 62 of the second frame 6.
- the third recess 59 is fitted with the second arm portion 62 of the second frame 6.
- a fourth recess 69 is formed between the adjacent second arm portions 62 of the second frame 6.
- the fourth recess 69 is formed in a step shape with a shape corresponding to the first arm portion 52 of the first frame 5.
- the fourth recess 69 is fitted with the first arm portion 52 of the first frame 5.
- FIG. 8 shows a cross section of the diaphragm 3 along the line AA.
- the peripheral portion 32 of the diaphragm 3 is continuously provided with a thick portion 33 having a thickness larger than that of the film portion 31.
- the first frame 5 is formed with a concave groove 55 into which the thick portion 33 is fitted.
- the second frame 6 has a concave groove 65 into which the thick portion 33 is fitted.
- the total depth of the concave groove 55 and the concave groove 65 is set to be smaller than the thickness of the thick portion 33. Due to the concave grooves 55 and 65, the thick portion 33 is appropriately compressed, and the leakage of the fluid to be processed at the peripheral edge portion 32 of the diaphragm 3 is further suppressed. Further, the concave grooves 55 and 65 function as positioning grooves when the diaphragm 3 is incorporated into the first frame 5 and the second frame 6, thereby increasing the production efficiency of the diaphragm pump 1.
- the diaphragm fixing method includes a frame fitting process, a diaphragm holding process, and a fastener mounting process.
- the first concave portion 50 (see FIG. 5 and the like) and the second concave portion 60 face each other through the diaphragm 3, and the first arm portion 52 and the second arm portion 62 are along the outer edge of the case 2.
- the first frame 5 and the second frame 6 are fitted together while being alternately arranged.
- the diaphragm holding step the peripheral edge 32 of the diaphragm 3 is compressed and held between the first frame 5 and the second frame 6.
- the fastener 7 is mounted on the first arm portion 52 and the second arm portion 62 from the outside of the case 2.
- the 1st arm part 52 and the 2nd arm part 62 are fastened with the fastener 7, the state of the firm fitting of the 1st frame 5 and the 2nd frame 6 is implement
- FIG. 9 shows a valve device according to a second embodiment of the present invention.
- the valve device 8 includes a case 2A that forms a space 20A therein, and a diaphragm 3A that partitions the space 20A into a first chamber 21A and a second chamber 22A.
- the diaphragm 3A is fixed to the case 2A by a fixing structure 4A.
- the case 2A includes a first frame 5A having a first recess 50A and a second frame 6A having a second recess 60A.
- the first recess 50A forms a space on the first chamber 21A side.
- the second recess 60A forms a space on the second chamber 22A side.
- the diaphragm 3A has a film part 31A that partitions the space 20A into a first chamber 21A and a second chamber 22A, and a peripheral part 32A formed on the outer peripheral edge of the film part 31A.
- the peripheral portion 32A is sandwiched between the first frame 5A and the second frame 6A.
- the diaphragm 3A can be swung by the elastic deformation of the film portion 31A.
- the peripheral edge portion 32A of the diaphragm 3A is compressed and held between the first frame 5A and the second frame 6A by fitting the first frame 5A and the second frame 6A. Thereby, the leakage of the to-be-processed fluid in the peripheral part 32A of the diaphragm 3A is suppressed.
- the material constituting the first frame 5A and the second frame 6A is the same as that of the first frame 5 and the second frame 6 of the first embodiment.
- the material constituting the diaphragm 3A is the same as that of the diaphragm 3 of the first embodiment.
- a driving means 80 for driving the diaphragm 3A is provided in the first recess 50A of the first frame 5A, that is, the first chamber 21A.
- the diaphragm 3 ⁇ / b> A is driven by the driving unit 80 to swing.
- the drive unit 80 presses the swing member 81 that swings integrally with the diaphragm 3A, a first plunger (movable iron core) 82 that presses one end of the swing member 81, and the other end of the swing member 81.
- the swing member 81 is accommodated in the space 20A.
- the swing member 81 is rotatably supported by a shaft member 81a. Both ends of the shaft member 81a are supported by the first frame 5A.
- the first plunger 82 is driven by the first coil spring 84, the solenoid coil 85, and the fixed iron core 86, and transmits the driving force to the swing member 81.
- the second plunger 83 is driven by the second coil spring 87 and transmits the driving force to the swing member 81.
- the spring load of the first coil spring 84 is set larger than the spring load of the second coil spring 87.
- the second frame 6A includes an inflow port (Common port) 71 through which fluid flows into the second chamber 22A, an NC (Normally Close) outflow port 72 and an NO (Normally Open) outflow port 73 through which fluid flows out from the second chamber 22A. And have.
- the NC outflow port 72 has an opening 72b around which a valve seat 72a is formed.
- the diaphragm 3A is seated on or separated from the valve seat 72a, and opens and closes the NC outflow port 72.
- the NO outflow port 73 has an opening 73b around which a valve seat 73a is formed.
- the diaphragm 3A is seated on or separated from the valve seat 73a and opens and closes the NO outflow port 73.
- the valve device 8 is a so-called solenoid valve that drives the diaphragm 3A by electromagnetic force generated by the solenoid coil 85 of the driving means 80, and opens and closes the NC outflow port 72 and the NO outflow port 73 to switch the flow path. It is.
- the inflow port 71 is always open, and fluid is supplied from the inflow port 71 into the second chamber 22A.
- the elastic force generated by the first coil spring 84 is the elasticity generated by the second coil spring 87. Greater than power. Therefore, in the normal state, the posture of the swinging member 81 and the diaphragm 3A is maintained in the posture rotated counterclockwise in the drawing as shown in FIG. 9, the NC outflow port 72 is closed, and the NO. Outflow port 73 is opened. Accordingly, as indicated by an arrow A, the fluid that flows into the second chamber 22A from the inflow port 71 is sent out from the NO outflow port 73.
- FIG. 10 shows the valve device 8 in a state where the solenoid coil 85 is energized.
- the first plunger 82 moves in a direction in which the first coil spring 84 is compressed by the electromagnetic force.
- the second plunger 83 presses the swing member 81, the swing member 81 and the diaphragm 3A are rotated clockwise, the NO outflow port 73 is closed, and the NC outflow port 72 is opened.
- the fluid flowing into the second chamber 22A from the inflow port 71 is sent out from the NC outflow port 72.
- FIG. 11 shows a perspective view of the case 2 ⁇ / b> A provided in the valve device 8.
- FIG. 12 shows an assembled perspective view of the case 2 and the diaphragm 3A.
- the first frame 5A includes the first recess 50A, a first frame body 51A that faces the second frame 6A, and a first arm portion 52A that holds the second frame 6A in a retaining state.
- the first recess 50A is formed on the inner end surface of the first frame body 51A facing the second frame 6A.
- a plurality of first arm portions 52A are provided along the outer edge of the first frame main body 51A.
- the second frame 6A includes a second frame body 61A that faces the first frame 5A, and a second arm portion 62A that holds the first frame 5A in a retaining state.
- a second recess 60A is formed on the inner end surface of the second frame body 61A facing the first frame 5A.
- a plurality of second arm portions 62A are provided along the outer edge of the second frame body 61A.
- the second frame 6A is held in a retaining state by the frictional force generated between the first arm portion 52A and the second frame 6A. . Further, a strong fitting state between the first frame 5A and the second frame 6A is realized by a frictional force generated between the second arm portion 62A and the first frame 5A.
- Fasteners 7A are attached to the first arm portion 52A and the second arm portion 62A from the outside of the case 2A.
- a snap ring made of an elastically deformable metal is applied as the fastener 7A.
- the fastener 7A may be configured to be detachable from the first arm portion 52 and the second arm portion 62.
- the fastener 7A is attached to the first arm portion 52 and the second arm portion 62, the first arm portion 52 and the second arm portion 62 are tightened by the fastener 7A, and the first frame 5A is held in a retaining state. Is done.
- the first frame 5A and the second frame 6A are fitted and integrated without fastening the screws and nuts.
- valve device 8 it is possible to reduce the number of parts of the fixed structure 4A of the diaphragm 3A, facilitate assembly, and reduce the cost. Furthermore, the configuration of the valve device 8 can be made simple and inexpensive. In the present embodiment, a pair of fasteners 7A divided into two parts are applied in consideration of ease of attachment to the first arm part 52 and the second arm part 62, but an integrally formed annular shape It may be a fastener.
- the first arm portion 52A is provided with a misalignment prevention means 53A for holding the position of the fastener 7A.
- the misalignment prevention means 53A includes a first retaining protrusion 54A that projects outward from the case 2A on the second frame body 61A side with respect to the fastener 7A provided on each first arm portion 52A.
- the second arm portion 62A is provided with a displacement prevention means 63A for holding the position of the fastener 7A.
- the misregistration prevention means 63A includes a second retaining protrusion 64A that projects outward from the case 2A on the first frame body 51A side than the fastener 7A provided on each second arm portion 62A.
- the fastener 7A urges the first retaining protrusion 54A toward the tip of the first arm portion 52A, and the reaction prevents the second retaining protrusion 64A. Is urged toward the tip of the second arm 62A.
- the first frame main body 51A and the second frame main body 61A are brought into close contact with each other, and the peripheral edge portion 32A of the diaphragm 3A is sandwiched between the first frame main body 51A and the second frame main body 61A in a compressed state. Therefore, the leakage of the fluid to be processed at the peripheral edge 32A of the diaphragm 3A is further suppressed.
- a third recess 56A is provided on the outer edge of the first frame main body 51A as the misalignment prevention means 53A.
- a fourth recess 66A is provided at the outer edge of the second frame main body 61A as the position shift prevention means 63A.
- the third concave portion 56A and the fourth concave portion 66A are fitted with a convex portion 70A that protrudes inwardly from the distal end portion of the fastener 7A. Due to the fitting of the third concave portion 56A and the fourth concave portion 66A with the convex portion 70A, the displacement and separation of the fastener 7A are prevented.
- the form of the misalignment prevention means 53A is not limited to the first retaining protrusion 54A and the third recess 56A described above, and may be any form having a function for holding the position of the fastener 7A.
- the form of the misregistration prevention means 63A is not limited to the second retaining protrusion 64A and the fourth recess 66A described above, and may be any form having a function for holding the position of the fastener 7A.
- the misalignment prevention means 53A and 63A may be annular grooves (not shown) extending along the outer edge of the case 2A on the outer peripheral surfaces of the first arm portion 52A and the second arm portion 62A.
- the annular groove also holds the position of the fastener 7A, and the urging force generated by the fastener 7A enhances the adhesion between the first frame body 51A and the second frame body 61A, and the peripheral edge of the diaphragm 3A. The leakage of the fluid to be processed in the portion 32A is further suppressed.
- the first arm portion 52A and the second arm portion 62A are alternately provided along the outer periphery of the case 2A.
- the peripheral edge portion 32A of the diaphragm 3A can be evenly compressed, and the leakage of the fluid to be processed at the peripheral edge portion 32A of the diaphragm 3A is further suppressed.
- the first arm portion 52A and the second arm portion 62A are continuously provided along the outer periphery of the case 2A.
- the peripheral edge portion 32A of the diaphragm 3A can be evenly compressed with a sufficient force, and the leakage of the fluid to be processed at the peripheral edge portion 32A of the diaphragm 3A is further suppressed.
- a fifth recess 59A is formed between adjacent first arm portions 52A of the first frame 5A.
- the fifth recess 59A is formed in a step shape with a shape corresponding to the second arm portion 62A of the second frame 6A.
- the fifth recess 59A is fitted with the second arm portion 62A of the second frame 6A.
- a sixth recess 69A is formed between the adjacent second arm portions 62A of the second frame 6A.
- the sixth recess 69A is formed in a step shape with a shape corresponding to the first arm portion 52A of the first frame 5A.
- the sixth recess 69A is fitted with the first arm portion 52A of the first frame 5A.
- the peripheral part 32A of the diaphragm 3A is continuously provided with a thick part 33A having a thickness larger than that of the film part 31A.
- the second frame 6A has a groove 65A into which the thick portion 33A is fitted.
- the method for fixing the diaphragm 3A includes a frame fitting process, a diaphragm holding process, and a fastener mounting process.
- the first recess 50A (see FIG. 9 and the like) and the second recess 60A face each other through the diaphragm 3A, and the first arm portion 52A and the second arm portion 62A are along the outer edge of the case 2A.
- the first frame 5A and the second frame 6A are fitted together while being alternately arranged.
- the diaphragm holding step the peripheral edge portion 32A of the diaphragm 3A is compressed and held between the first frame 5A and the second frame 6A.
- the fastener 7A is mounted on the first arm portion 52A and the second arm portion 62A from the outside of the case 2A.
- the first arm portion 52A and the second arm portion 62A are tightened by the fastener 7A, and the first frame 5A and the second frame 6A are held in a retaining state. Therefore, a strong fitting state between the first frame 5A and the second frame 6A is realized, and the first frame 5A and the second frame 6A are firmly integrated.
- valve device of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment described above, and can be implemented in various forms.
- Diaphragm pump 1 Diaphragm pump 2 Case 3 Diaphragm 4 Fixing structure 5 1st frame 6 2nd frame 7 Fastening tool 8 Valve apparatus 20 Space 21 1st chamber 22 2nd chamber 32 Perimeter part 33 Thick part 50 1st recessed part 51 1st frame main body 52 1st arm part 53 Position shift prevention means 54 1st drop prevention protrusion 60 2nd recessed part 61 2nd frame main body 62 2nd arm part 63 Position shift prevention means 64 2nd fall prevention protrusion 71 Inflow port 72 NC outflow port 73 NO Outflow port 80 drive means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
(第1実施形態)
図9は、本発明の第2実施形態に係る弁装置を示している。弁装置8は、内部に空間20Aを形成するケース2Aと、空間20Aを第1室21Aと第2室22Aとに仕切るダイアフラム3Aとを有している。ダイアフラム3Aは、固定構造4Aによってケース2Aに固定されている。
2 ケース
3 ダイアフラム
4 固定構造
5 第1フレーム
6 第2フレーム
7 締結具
8 弁装置
20 空間
21 第1室
22 第2室
32 周縁部
33 厚肉部
50 第1凹部
51 第1フレーム本体
52 第1腕部
53 位置ずれ防止手段
54 第1抜け止突起
60 第2凹部
61 第2フレーム本体
62 第2腕部
63 位置ずれ防止手段
64 第2抜け止突起
71 流入ポート
72 NC流出ポート
73 NO流出ポート
80 駆動手段
Claims (11)
- 内部に空間を形成するケースに、前記空間を第1室と第2室とに仕切るダイアフラムを固定するダイアフラムの固定構造であって、
前記ケースは、前記第1室側を形成する第1凹部を有する第1フレームと、前記第2室側を形成する第2凹部を有する第2フレームとを備え、
前記第1フレームは、前記第2フレームに対向する第1フレーム本体と、前記第1フレーム本体の外縁に沿って間欠的に設けられかつ前記第2フレーム側にのびる複数の第1腕部とを有し、
前記第2フレームは、前記第1フレームに対向する第2フレーム本体と、前記第2フレーム本体の外縁に沿って間欠的に設けられかつ前記第1フレーム側にのびる複数の第2腕部とを有し、
前記第1フレームと前記第2フレームとの嵌め合わせにより、前記ダイアフラムの周縁部は、前記第1フレームと前記第2フレームとの間で圧縮されて保持されるとともに、
前記第1腕部と前記第2腕部とを前記ケースの外側から締め付ける締結具をさらに備えたことを特徴とするダイアフラムの固定構造。 - 前記第1腕部及び前記第2腕部には、前記締結具の位置を保持するための位置ずれ防止手段が設けられている請求項1記載のダイアフラムの固定構造。
- 前記位置ずれ防止手段は、前記各第1腕部に設けられた前記締結具よりも前記第2フレーム本体側でケース外方に張り出す第1抜け止め突起と、前記各第2腕部に設けられた前記締結具よりも前記第1フレーム本体側でケース外方に張り出す第2抜け止め突起とを含む請求項2記載のダイアフラムの固定構造。
- 前記位置ずれ防止手段は、前記第1腕部及び前記第2腕部の外周面を、前記ケースの外縁に沿ってのびる環状溝である請求項2記載のダイアフラムの固定構造。
- 前記第1腕部と前記第2腕部とが、前記ケースの外縁に沿って交互に設けられている請求項1乃至4のいずれかに記載のダイアフラムの固定構造。
- 前記第1腕部と前記第2腕部とが、前記ケースの外周に沿って連続して設けられている請求項1乃至5のいずれかに記載のダイアフラムの固定構造。
- 前記ダイアフラムの前記周縁部は、厚さが大きい厚肉部が連続して設けられている請求項1乃至6のいずれかに記載のダイアフラムの固定構造。
- 前記第1フレーム及び/又は前記第2フレームには、前記厚肉部が配される位置決め用の凹溝が形成されている請求項7記載のダイアフラムの固定構造。
- 請求項1乃至8のいずれかに記載のダイアフラムの固定構造を備え、
前記第1フレームは、前記第1室に連通する第1ポートが形成され、
前記第2フレームは、前記第2室に連通する第2ポートが形成され、
前記第1室には、前記第1ポートを介して、前記ダイアフラムを駆動するための流体が供給され、
前記第2室には、前記第2ポートを介して、被処理流体が流出入することを特徴とするダイアフラムポンプ。 - 請求項1乃至7のいずれかに記載のダイアフラムの固定構造を備え、
前記第1フレームの前記第1室には、前記ダイアフラムを駆動するための駆動手段が設けられ、
前記第2フレームは、前記第2室に流体を流入させる流入ポートと、前記第2室から流体を流出させる流出ポートとを有し、
前記流出ポートは、周囲に弁座が形成された開口を有し、
前記ダイアフラムは、前記弁座に着座又は離間して、前記流出ポートを開閉することを特徴とする弁装置。 - 内部に空間を形成するケースに、前記空間を第1室と第2室とに仕切るダイアフラムを固定するダイアフラムの固定方法であって、
前記ケースは、前記第1室側を形成する第1凹部を有する第1フレームと、前記第2室側を形成する第2凹部を有する第2フレームとを備え、
前記第1フレームは、前記第2フレームに対向する第1フレーム本体と、前記第1フレーム本体の外縁に沿って間欠的に設けられかつ前記第2フレーム側にのびる複数の第1腕部とを有し、
前記第2フレームは、前記第1フレームに対向する第2フレーム本体と、前記第2フレーム本体の外縁に沿って間欠的に設けられかつ前記第1フレーム側にのびる複数の第2腕部とを有し、
前記第1フレームと前記第2フレームとを嵌め合わせるフレーム嵌め合わせ工程と、
前記ダイアフラムの周縁部を、前記第1フレームと前記第2フレームとの間で圧縮して保持するダイアフラム保持工程と、
前記第1腕部と前記第2腕部とを前記ケースの外側から締結具を装着し、前記第1フレームと前記第2フレームとを締め付ける締結具装着工程とを含むことを特徴とするダイアフラムの固定方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020167026674A KR102339441B1 (ko) | 2014-03-20 | 2015-01-23 | 다이아프램의 고정 구조, 그것을 구비한 다이아프램 펌프 및 밸브 장치, 그리고 다이아프램의 고정 방법 |
US15/127,258 US10107280B2 (en) | 2014-03-20 | 2015-01-23 | Structure for securing diaphragm, diaphragm pump and valve device equipped with the same, and method of securing diaphragm |
CN201580011711.1A CN106062439B (zh) | 2014-03-20 | 2015-01-23 | 隔膜的固定构造、具备其的隔膜泵和阀装置、以及隔膜的固定方法 |
EP15764809.8A EP3118492B1 (en) | 2014-03-20 | 2015-01-23 | Structure for securing diaphragm, diaphragm pump and valve device provided with said structure, and method for securing diaphragm |
Applications Claiming Priority (2)
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JP2014-058750 | 2014-03-20 | ||
JP2014058750A JP5952848B2 (ja) | 2014-03-20 | 2014-03-20 | ダイアフラムの固定構造、それを備えたダイアフラムポンプ及び弁装置、並びにダイアフラムの固定方法 |
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WO2015141278A1 true WO2015141278A1 (ja) | 2015-09-24 |
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Country Status (6)
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US (1) | US10107280B2 (ja) |
EP (1) | EP3118492B1 (ja) |
JP (1) | JP5952848B2 (ja) |
KR (1) | KR102339441B1 (ja) |
CN (1) | CN106062439B (ja) |
WO (1) | WO2015141278A1 (ja) |
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US10677238B2 (en) * | 2017-11-08 | 2020-06-09 | Ingersoll-Rand Industrial U.S., Inc. | Filled resin layer separated pump housing |
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2014
- 2014-03-20 JP JP2014058750A patent/JP5952848B2/ja not_active Expired - Fee Related
-
2015
- 2015-01-23 CN CN201580011711.1A patent/CN106062439B/zh not_active Expired - Fee Related
- 2015-01-23 WO PCT/JP2015/051851 patent/WO2015141278A1/ja active Application Filing
- 2015-01-23 EP EP15764809.8A patent/EP3118492B1/en active Active
- 2015-01-23 US US15/127,258 patent/US10107280B2/en not_active Expired - Fee Related
- 2015-01-23 KR KR1020167026674A patent/KR102339441B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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EP3118492A1 (en) | 2017-01-18 |
CN106062439B (zh) | 2018-05-22 |
EP3118492A4 (en) | 2017-11-01 |
US20170107981A1 (en) | 2017-04-20 |
KR20160133471A (ko) | 2016-11-22 |
CN106062439A (zh) | 2016-10-26 |
KR102339441B1 (ko) | 2021-12-14 |
EP3118492B1 (en) | 2021-06-30 |
JP5952848B2 (ja) | 2016-07-13 |
JP2015183722A (ja) | 2015-10-22 |
US10107280B2 (en) | 2018-10-23 |
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