WO2019239673A1 - 仕切弁装置 - Google Patents
仕切弁装置 Download PDFInfo
- Publication number
- WO2019239673A1 WO2019239673A1 PCT/JP2019/012360 JP2019012360W WO2019239673A1 WO 2019239673 A1 WO2019239673 A1 WO 2019239673A1 JP 2019012360 W JP2019012360 W JP 2019012360W WO 2019239673 A1 WO2019239673 A1 WO 2019239673A1
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- WO
- WIPO (PCT)
- Prior art keywords
- valve
- valve plate
- pressure
- chamber
- seal member
- Prior art date
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Classifications
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
- F16K3/243—Packings
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve 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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/316—Guiding of the slide
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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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
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/04—Devices for relieving the pressure on the sealing faces for sliding 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
- F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
Definitions
- the present invention relates to a gate valve device that is interposed between a first chamber and a second chamber that are connected to each other to partition both chambers.
- This type of gate valve device is known from Patent Document 1, for example.
- This includes a communication block (valve body) in which a communication passage allowing communication between the first chamber and the second chamber is established, and a partition position and a seat that are seated on a seat surface formed in the communication passage and partition the communication passage.
- a valve unit having a valve plate that can be moved forward and backward from an open position that is spaced from the surface and opens the communication path.
- the width of the communication path is set according to the width of an object to be transported (for example, a silicon substrate or a glass substrate) transported between the first chamber and the second chamber.
- the plate length is set.
- a plurality of shafts are provided on the lower surface of the valve plate at intervals in the plate length direction, and the power of the driving means such as an air cylinder and a motor is transmitted to each shaft. I am advancing and retreating.
- the valve plate is arranged so that the seal member provided on the valve plate is in pressure contact with the seat surface substantially uniformly (preferably substantially simultaneously) over the whole. It is usual to design factors such as the number and interval of shafts provided in the shaft and the power applied to each shaft.
- the size of the substrate to be processed as a transported object tends to increase, and accordingly, the vacuum processing apparatus, and thus the substrate, The size of the communication path that passes is also changed. At this time, it is necessary to change (lengthen) the length of the valve plate in accordance with the size change of the communication passage.
- the conventional example has a problem that the structure of the gate valve device is complicated. In the above conventional example, when the length of the valve plate is changed, it is necessary to review the above elements and newly redesign, which is inconvenient.
- an object of the present invention is to provide a gate valve device having a simple configuration.
- the gate valve device of the present invention which is interposed between a first chamber and a second chamber which are connected to each other and partitions both chambers, communicates between the first chamber and the second chamber.
- a communication block having a communication path that permits the passage, and a valve unit that has a valve plate that is seated on a seat surface provided in the communication path and partitions the communication path and an open position that is movable away from the seat surface.
- the valve unit is attached to the upper surface of the communication block with the moving direction of the valve plate from the open position toward the partition position as the vertical direction, and the upper end of the valve plate is interposed between the inner wall and the sealing means.
- a bottomed cylindrical valve box a pressure applying part that applies gas pressure to the pressure receiving surface with the upper surface of the valve plate facing the upper inner surface of the valve box, and guides the advancement and retreat of the valve plate
- the lower end of the valve plate through the click partly is characterized by being configured to seat on the seat surface provided in the communicating passage communicating blocks.
- valve plate since the valve plate is advanced and retracted by applying the gas pressure to the pressure receiving surface using the upper surface of the valve plate as the pressure receiving surface, a gate valve device having a simple configuration can be obtained. Even if the plate length of the valve plate is changed, it is not necessary to review and redesign the (design) element for advancing and retracting the valve plate, and it is easy to use for changing the plate length of the valve plate. Can be.
- valve plate can be moved up by stopping the application of the gas pressure to the pressure receiving surface of the valve plate.
- a relief passage is provided in the valve box for releasing the gas pressure into the atmosphere so that a pressure higher than a predetermined pressure does not act on the sealing means. According to this, it can prevent that the pressure which acts on a sealing means becomes excessive, and flows into a communicating path.
- the lower end portion of the valve body comes into pressure contact with the surface of the base material, and this pressure contact force
- the first chamber and the second chamber may be partitioned by allowing the back surface of the base material deformed by the seating on the seating surface. That is, you may comprise so that the lower end part of a valve body may seat on a seat surface through a base material.
- FIG. 2 is a longitudinal sectional view taken along line II-II shown in FIG.
- the longitudinal cross-sectional view of the gate valve apparatus which shows the state which the valve plate moved to the open position.
- the longitudinal cross-sectional view of the gate valve apparatus which shows the state which the valve plate moved to the partition position.
- the top view which shows typically the seal
- the perspective view which shows the sealing member of the gate valve apparatus of the modification of this invention.
- the longitudinal cross-sectional view of the gate valve apparatus of the modification of this invention which shows the state which the valve plate moved to the partition position.
- the gate valve device IV has a communication block Bc having a communication path 1 that allows the first chamber C1 and the second chamber C2 to communicate with each other and allows the belt-shaped substrate W to be conveyed. And a valve plate 2 that can be moved back and forth between a partitioning position for partitioning the communication path 1 by being seated on seat surfaces 11a, 11b, and 11c, which will be described later, provided in the communication path 1 and an open position spaced from the seat surface.
- Unit Uv. In the following description, the movement direction of the valve plate 2 from the open position to the partitioning position will be described as the vertical direction, and the horizontal direction in FIG. 2 will be described as the plate length direction.
- the valve unit Uv is attached to the upper surface 12 of the communication block Bc via an O-ring as the sealing means 13.
- the flange portion as the upper end portion 21 of the valve plate 2 is inserted between the inner wall (substantially racetrack-shaped cylinder inner wall) 31 through the O-ring as sealing means 32a, 32b.
- a bottom cylindrical valve box 3 is provided.
- the O-rings 13, 32a, 32b and O-rings as sealing means 32c, 32d described later for example, those made of fluororubber can be used.
- the case where two sealing means 32a and 32b are provided is described as an example.
- the sealing means Can also be single.
- the valve plate 2 pivotally supports the seal member 22 in the groove 20 which is the lower end portion thereof.
- the curvature of the groove 20 is equivalent to the curvature on the surface of the rubber roller-like seal member 22 (see FIG. 2).
- the length of the groove 20 in the plate length direction is set longer than the length of the seal member 22.
- the restraint between the seal member 22 and the valve plate 2 is a shaft support by so-called clearance fit in which a gap exists between the shaft 22a of the seal member 22 and the hole 2a interposed in the valve plate 2.
- valve plate 2 moves downward, and the sealing member 22 initially contacts the front surface Wa of the base material W stretched between the guide rollers Gr1 and Gr2, and then presses down the base material W, and the rear surface Wb of the base material W.
- the inner surface of the groove 20 abuts against the seal member 22 and presses further downward, that is, the valve plate.
- the lower end of the seal member 22 is pressed against the surface Wa of the base material W, and the back surface Wb of the press-contacted base material W is pressed against the seat surface 11a.
- the lower surface regions at both ends in the plate length direction at the lower end of the seal member 22 are brought into pressure contact with the seating surface 11b located outside the base material W.
- both side portions in the longitudinal direction of the seal member 22 are brought into pressure contact with the seat surface 11c which is the inner surface of the opening into which the valve plate 2 of the communication block Bc is inserted.
- a minute gap Sp inevitably formed due to a step corresponding to the thickness of the step-like base material W composed of the seating surface 11a and the base material W which are flat surfaces.
- the minute gap Sp can be substantially filled by controlling the leak rate by appropriately selecting the surface hardness of the seal member 22 or the like.
- the two chambers C1 and C2 are prevented from communicating with each other. That is, when the valve body 2 is in the partitioning position, as shown in FIG.
- the substantially square shape includes not only a frame shape but also a race track shape.
- the valve box 3 includes a guide portion 4 for guiding the valve plate 2 to advance and retreat (up and down movement).
- a guide part 4 for example, a known linear guide mechanism including a case 41 and a sleeve 43 that is positioned in the case 41 using a stopper 42 such as a stop ring and into which the rod part 23 is inserted is used. be able to.
- the sliding surfaces of the sealing means 32a and 32b and the sliding surfaces of the sealing means 32c and 32d have a so-called piston / cylinder structure.
- a structure in which the guide portion 4 is omitted is also possible.
- the gate valve device IV uses the upper surface 21a of the valve plate 2 facing the upper inner surface 33 of the valve box 3 as a pressure receiving surface, and the pressure applying means (pressure applying portion) 5 for applying a gas pressure to the pressure receiving surface 21a is in the valve length direction.
- a plurality of (two in this embodiment) are provided at intervals.
- a typical pressure of compressed air is 0.5 MPa.
- the pressure receiving area by the pressure applying means 5 is the area as viewed from the upper side of the upper surface 21 a surrounded by the sealing means 32. Referring to FIG.
- a vacuum exhaust means such as a vacuum pump may be connected to the open end of the relief passage 34, and the relief passage 34 may be evacuated to a low vacuum atmosphere, thereby acting on the O-ring 32d via the relief passage 34.
- the pressure can be further reduced, and as a result, the amount of leakage flowing into the chambers C1 and C2 via the communication path 1 can be reduced.
- the gate valve device IV further includes urging force applying means 6 for applying an urging force in the upward movement direction of the valve plate 2.
- urging force applying means 6 a known compressed air introduction mechanism that applies a gas pressure to the lower surface 21 b of the flange portion 21 of the valve plate 2 can be used, and thus detailed description thereof is omitted here.
- the effective area that receives the gas pressure of the urging force applying means 6 when the valve plate 2 is moved up is an area obtained by subtracting the area surrounded by the O-ring 32c from the area surrounded by the O-ring 32b.
- the area surrounded by the O-ring 32d varies depending on the pressure of the first chamber C1 and the second chamber C2, and varies depending on the area surrounded by the O-ring 32a and the pressure of the pressure applying means 5.
- the upper side of the O-ring 32a is atmospheric pressure
- the lower side of the O-ring 32d is a pressure equal to or lower than a low vacuum. That is, in the production operation state, in order to move the valve plate 2 to the open position, in addition to the dead weight of the valve plate 2, a force equal to or higher than the force due to the atmospheric pressure acting on the O-ring 32 a side is applied. There is a need.
- the gate valve device IV is provided with guide rollers Gr1 and Gr2, so that the substrate W does not come into contact with the communication block Bc when the base material W is conveyed as shown in FIG.
- the guide rollers Gr1 and Gr2 may be provided in the first chamber C1 and the second chamber C2, and the number of guide rollers Gr1 and Gr2 is appropriately set according to the size of the substrate W and the communication block Bc. Can do.
- the operation of the gate valve device IV will be described.
- the lower end of the seal member 22 of the valve plate 2 is the base material W.
- the substrate W can be conveyed through the communication path 1 of the communication block Bc (open position).
- the base material W is guided by the guide rollers Gr1 and Gr2 so that the base material W does not contact the communication block Bc.
- the valve body 2 moves to the partition position, and the lower end of the seal member 22 provided at the lower end of the valve plate 2 protruding from the valve box 3 presses the surface Wa of the substrate W,
- the back surface Wb of the base material W deformed into a substantially V shape by this pressing force is brought into pressure contact with the seat surface 11 a provided in the communication path 1.
- the lower end of the seal member 22 is also pressed into contact with the seating surfaces 11a and 11b located outside the base material W.
- the first chamber C1 and the second chamber C2 are partitioned by pressurizing both side portions of the seal member 22 in the longitudinal direction to the seating surface 11c.
- the base material W has a thickness
- a step is inevitably generated between the surface Wa of the base material W pressed against the seat surface 11a and the seat surface 11a located outside the base material W.
- the hardness of the seal member 22 so as to be able to fill this level difference (that is, to prevent a gap due to this level difference)
- the seating surface 11b refers to a portion (remaining part) of the seating surface 11a that is not covered with the base material W.
- valve plate 2 When the first chamber C1 and the second chamber C2 are in a vacuum atmosphere, the valve plate 2 may be moved down to the partition position even when the pressure above the O-ring 32a is atmospheric pressure, and the seal member 22 is sufficiently Assuming that the pressure that can be pressed is secured, it is not always necessary to introduce the compressed air from the pressure applying means 5, and the gas pressure applied from the urging force applying means 6 may be simply released.
- the seal member 22 is pressed.
- the force can be designed to antagonize the pressure received by the area of the pressure receiving surface 21a. In other words, if the length of the valve plate 2 in the plate length direction is increased or decreased, the area of the pressure receiving surface 21a changes, but the force applied to the pressure receiving surface 21a and the pressing force of the seal member 22 are the same. It can be.
- the shaft support of the seal member 22 is a clearance fit, and the seal member 22 is configured to be pressed by the groove 20 along the upper surface thereof.
- the seal member 22 is allowed to slide in the horizontal direction.
- the pressure receiving surface 21a is a surface that receives air pressure, there is no vector element in the pressing direction of the air pressure. From the above, it is possible to prevent the occurrence of a problem such that the seal member 22 comes into contact with the surface Wa of the substrate W.
- the present invention is not limited to the above.
- the case where the urging force applying means 6 is configured by a compressed air introduction mechanism has been described as an example, but the valve plate 2 may be urged in the upward movement direction by a spring.
- the lower end shape of the valve plate 2 in the open position (that is, the lower end shape of the rubber roller-like seal member 22) is U-shaped in cross-section (note that the outer shape of the rubber roller is cylindrical), It is not particularly limited as long as it can be seated on the seating surfaces 11a and 11b of the communication block Bc.
- it may be a hexagonal shape, a trapezoidal shape, or a downward triangular shape in sectional view.
- the necessary shape is a shape in which a sufficient vertical contact force can be uniformly applied to each press contact surface when the valve plate 2 moves to the partition position.
- the lower end of the seal member 22 presses the surface Wa of the base material W downward, and the back surface Wb of the base material W deformed into a substantially V shape by this pressing force is pressed against the seat surface 11a.
- the lower end of the seal member 22 is also pressed against the seating surfaces 11a and 11b located on the outer side in the plate length direction of the base material W.
- both chambers C1, C2 can be partitioned by pressurizing both longitudinal sides of the seal member 22 to the seating surface 11c.
- the arc-shaped cross section is the most advantageous shape because it can avoid the difficulty of equalizing the pressure contact force at each top of the seating surface 11b that occurs in the polygonal cross section when moved to the partition position. .
- the seat surface 11c needs to keep a wedge-shaped slope when moving to the partition position. At this time, a step is inevitable between the surface Wa of the substrate W and the seating surface 11b.
- both chambers C1, C2 can be reliably partitioned.
- a shaftless rubber roller-like seal member can also be used.
- a notch that is slightly smaller than the seal member may be provided at the bottom of the opening in which the valve element 2 of the communication block Bc is inserted, and the seal member may be supported by the peripheral portion of the notch.
- the seating surface 11a is a plane
- the curved surface may have a circular arc shape in cross section with a curvature equivalent to that of the seal member 22. According to this, the pressure contact area of the seal member 22 with respect to the seating surface can be increased, and even if dust (foreign matter) is caught between the seal member 22 and the seating surface, the occurrence of partition failure is made as much as possible. It can be suppressed and is advantageous.
- the length of the pressure contact surface (the length in the substrate conveyance direction in the pressure contact region where the base material W plane is projected onto the communication block Bc) is equal to or greater than the pitch of the grooves 220 (in the case of the staggered grooves 220, greater than the staggered repeat pitch). ) Is preferable.
- region since a base material does not exist and a press-contact distance will be reduced, it is preferable not to provide the groove
- the required pressure contact force is the sum of the surface pressures against the pressure contact area of the seal member. Therefore, when the pressure contact area is increased, the normal pressure contact force also increases, but the pressure contact force corresponding to the area of the groove 220 is increased. This can be reduced and is advantageous.
- the lower end of the seal member 22 is seated on the seat surface 11a via the surface Wa of the substrate W, the lower end is seated on the seat surface 11b, and the side portion of the seal member 22 is seated on the seat surface 11c.
- the present invention is not limited to this, and other parts of the seal member 22 may be seated depending on the shape of the base material W, the shape of the communication path 1, and the position of the seat surface. Good.
- the guide portion 4 having the sleeve 43 has been described as an example.
- the guide portion 4 is not particularly limited as long as it can guide the advancement and retraction of the valve body 2. Can be used as the guide portion.
- the case where the two compressed air introduction mechanisms 5 are provided has been described as an example. However, it is sufficient that at least one compressed air introduction mechanism 5 is provided, and the number of the compressed air introduction mechanisms 5 is the valve plate. 2 can be set as appropriate according to the moving speed.
- one compressed air introduction mechanism 5 it is preferably provided at the center in the valve length direction.
- three or more compressed air introduction mechanisms 5 they are provided at equal intervals in the valve length direction. preferable.
- the opening position of the relief passage 34 is not limited to the position shown in FIGS. 3 and 4 and may be opened so that a pressure higher than the atmospheric pressure does not act on the sealing means 32d.
- Bc Communication block, IV ... Gate valve device, Uv ... Valve unit, 1 ... Communication passage, 2 ... Valve plate, 3 ... Valve box, 4 ... Guide part, 5 ... Pressure applying means, 6 ... Biasing force applying means, 11a 11b, 11c ... Seating surface, 12 ... Upper surface of the communication block Bc, 21a ... Upper surface of the valve plate 2 (pressure receiving surface), 31 ... Inner side wall of the valve box 3, 32a, 32b, 32d ... O-ring (sealing means), 33 ... Upper inner surface of the valve box 3, 34 ... Relief passage.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims (3)
- 互いに連設される第1室と第2室との間に介設されて両室を仕切る仕切弁装置において、
第1室と第2室との連通を許容する連通路を持つ連通ブロックと、連通路に設けた座面に着座して連通路を仕切る仕切位置と座面から離間した開放位置との間で進退自在な弁板を有する弁ユニットと、を備え、
弁ユニットは、開放位置から仕切位置に向かう弁板の移動方向を上下方向として、連通ブロックの上面に取り付けられ、弁板の上端部が、内側壁との間にシール手段を介して挿設される有底筒状の弁箱と、弁箱の上内面に対峙する弁板の上面を受圧面としてこの受圧面に気体圧力を付与する圧力付与部と、弁板の進退をガイドするガイド部とを有し、受圧面に気体圧力が付与されると、弁箱から突出して連通ブロックを部分的に貫通する弁板の下端部が連通ブロックの連通路に設けた座面に着座するように構成したことを特徴とする仕切弁装置。 - 前記弁板にその上動方向の付勢力を付与する付勢力付与手段を更に備えることを特徴とする請求項1記載の仕切弁装置。
- 前記弁箱に、前記シール手段に対して所定以上の圧力が作用しないように気体圧力を大気中に逃がすリリーフ通路が開設されていることを特徴とする請求項1または請求項2記載の仕切弁装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019546045A JP6637224B1 (ja) | 2018-06-12 | 2019-03-25 | 仕切弁装置 |
KR1020217000113A KR102341592B1 (ko) | 2018-06-12 | 2019-03-25 | 게이트 밸브 장치 |
CN201980003674.8A CN110959085B (zh) | 2018-06-12 | 2019-03-25 | 闸阀装置 |
US17/097,788 US11002366B2 (en) | 2018-06-12 | 2020-11-13 | Gate valve device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2018-112298 | 2018-06-12 | ||
JP2018112298 | 2018-06-12 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/097,788 Continuation-In-Part US11002366B2 (en) | 2018-06-12 | 2020-11-13 | Gate valve device |
Publications (1)
Publication Number | Publication Date |
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WO2019239673A1 true WO2019239673A1 (ja) | 2019-12-19 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2019/012360 WO2019239673A1 (ja) | 2018-06-12 | 2019-03-25 | 仕切弁装置 |
Country Status (6)
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US (1) | US11002366B2 (ja) |
JP (1) | JP6637224B1 (ja) |
KR (1) | KR102341592B1 (ja) |
CN (1) | CN110959085B (ja) |
TW (1) | TWI706099B (ja) |
WO (1) | WO2019239673A1 (ja) |
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- 2019-03-25 WO PCT/JP2019/012360 patent/WO2019239673A1/ja active Application Filing
- 2019-03-25 JP JP2019546045A patent/JP6637224B1/ja active Active
- 2019-03-25 CN CN201980003674.8A patent/CN110959085B/zh active Active
- 2019-04-02 TW TW108111620A patent/TWI706099B/zh active
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2020
- 2020-11-13 US US17/097,788 patent/US11002366B2/en active Active
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JPWO2019239673A1 (ja) | 2020-06-25 |
US20210062921A1 (en) | 2021-03-04 |
US11002366B2 (en) | 2021-05-11 |
JP6637224B1 (ja) | 2020-01-29 |
CN110959085B (zh) | 2021-02-12 |
KR20210020067A (ko) | 2021-02-23 |
TWI706099B (zh) | 2020-10-01 |
CN110959085A (zh) | 2020-04-03 |
TW202001128A (zh) | 2020-01-01 |
KR102341592B1 (ko) | 2021-12-21 |
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