WO2008047598A1

WO2008047598A1 - Dispensing device of liquid chemical and dispensing method

Info

Publication number: WO2008047598A1
Application number: PCT/JP2007/069351
Authority: WO
Inventors: Toshiki Takedutsumi
Original assignee: Tokyo Ohka Kogyo Co., Ltd.
Priority date: 2006-10-18
Filing date: 2007-10-03
Publication date: 2008-04-24
Also published as: KR20090068246A; KR101455560B1; TWI372130B; TW200833567A; CN102556515A; KR101384892B1; KR20130124410A; TW201107204A; TWI347292B

Abstract

A liquid chemical dispensing device comprising a liquid chemical-use pail can able to be produced inexpensively and a simple-structure dispenser. The liquid chemical-use pail can (10) comprises a tubular inner container (1) of chemical resistant synthetic resin and an outer container (2) constituting the outer shell of the inner container (1). The inner container (1) has a mouth (11) opened to permit injection of liquid chemical. The dispenser (40) is provided with a plug body (41), a ventilating means (42) and liquid delivering pipe (43). The plug body (41) couples with the mouth (11) tight-sealingly. The ventilating means (42) has an opening (42b) communicating with the plug body (41) to permit compression liquid to pass into the inner container (1). The liquid delivering pipe (43) reaches the bottom surface of the inner container (1) at one end, protrudes from the plug body (41) at other end, and is fitted to the plug body (41) tigh-sealingly. Compression liquid is pressurized to an air layer in the inner container (1) via the ventilating means (42) to discharge liquid chemical from the other end of the liquid delivering pipe (43).

Description

Specification

Liquid chemical dispensing apparatus and method

Technical field

The present invention relates to a liquid chemical dispensing apparatus and a dispensing method. In particular, the present invention relates to a liquid chemical distribution apparatus and distribution method for storing, transporting, and distributing fluids such as electronic chemicals.

Background art

[0002] For example, chemicals for electronic industry such as photoresist are stored in a chemical container for transportation and delivered to a manufacturing factory. Such chemical containers are classified into a link system in which the same container is used repeatedly and a one-way system in which a new container is used each time. In particular, in order not to affect the purity of high-purity chemicals, it is preferable to use a one-way type container, but there is a disadvantage that it is not economical. In recent years, a double-type storage container that combines the above two types has become widespread.

[0003] In general, a double retractable container has a bag (bag) made of a flexible film that has been washed in advance. The film bag is formed of an inert material and is provided in an outer container. After draining the drug from the film 'bag, this film' bag is discarded and a new film 'bag is filled with the drug. The outer container including the joint is repeatedly used.

[0004] As such a double-retractable container, a liquid chemical container that can discharge liquid chemical safely and reliably, and a liquid chemical distribution device including a dispenser have been invented (see, for example, Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 6-100087

Disclosure of the invention

Problems to be solved by the invention

FIG. 15 is a front view of a liquid medicine dispensing device including a container and a dispenser according to Patent Document 1, and a cross-section of a main part thereof. FIG. 15 of the present application corresponds to FIG. In FIG. 15, the liquid chemical dispensing apparatus according to Patent Document 1 includes a container 7 and a dispenser 8. The container 7 includes an outer container 716, a port (hereinafter referred to as an attachment body) 718, and a retainer 719. The container 7 includes a flexible bag 720, a liquid discharge tube 722, and a coupling 724. Furthermore, the container 7 includes a lid 726, a breakable sealing film 727, and a cap 728.

In FIG. 15, the outer container 716 has a mouth 730 that forms a male screw, and a retainer 719 and a mounting body 718 are attached in the mouth 730. The nod 720 is attached to the mounting body 718 and is provided in the outer container 716. The coupling 724 is also provided in the mounting body 718 and connected to a liquid discharge tube 722 that is lowered into the interior of the bag 720.

In FIG. 15, a lid 726 surrounds the mounting body 718, the coupling 724, and the mouth 730 of the outer container 716, and seals the mounting body 718 and the outer container 716 with a breakable seal film 727. ing. The cap 728 is screwed to the top of the lid 726.

In FIG. 15, an outer container 716 is a steel drum, and includes a main plate 732, a body 734, and an inclined top plate 736. The outer container 716 has a mouth 730 in the top plate 736, and the body 734 has a pair of molded handles 738.

In FIG. 15, the dispenser 8 includes a lower connector 842, a retainer 844, a probe 8 46, and an upper connector 848. Retainer 844 is nested within lower connector 842. Probe 846 passes through and is supported by retainer 844. Upper connector 848 is connected to retainer 844 and lower connector 842 and surrounds probe 846.

[0011] In FIG. 15, after attaching the mounting body 718 to which the bag 720 is attached to the mouth 730, the nozzle 720 is preferably inflated with nitrogen before being filled with the liquid chemical. The Thereafter, the nod 720 is filled with the liquid chemical via the mounting body 718. Next, the liquid discharge tube 722 and the coupling 724 are inserted into the mounting body 718. The lid 726 places a breakable seal membrane 727 on the top end of the mounting body 718 and seals the cavity 776. Further, a cap 728 can be provided on the mouth portion 730 of the container 7 to cover the breakable seal film 727.

[0012] The gas generated in the flexible bag 720 during transporting and handling the container 7 is All flows through the gas passage formed by the coupling 724 of the liquid discharge tube 722 and accumulates in the space 776 provided at the upper end of the coupling 724 of the liquid discharge tube 722 with the force S.

[0013] The container 7 according to Patent Document 1 includes a breakable seal film 727, and the probe 846 provided in the dispenser 8 breaks through the seal film 727 so that the probe 846 enters the space 790. be able to. By connecting the dispenser 8 to the container 7 and pressurizing the inside of the bag 720 with nitrogen through the dispenser 8 and the empty space 782, the liquid chemical can be discharged from the probe 846.

[0014] The container 7 according to Patent Document 1 has a configuration in which a coupling 724 with a liquid discharge tube 722 is incorporated and transported. If the dispensing tube is arranged on the dispenser side, it is possible to reduce the manufacturing cost of liquid chemical containers.

[0015] Container 7 according to Patent Document 1 is a so-called canister, which is a completely sealed container, and has a robust structure formed by processing a thick metal plate, but the manufacturing cost is high. There is. Instead of expensive canister cans, there is a need for liquid chemical pail cans that can be manufactured at low cost by molding thin metal plates.

Furthermore, the container 7 according to Patent Document 1 is mounted on a new bag 720 after the flexible bag 720 from which the liquid chemical has been discharged is discarded and the liquid discharge tube 722 is washed.ヮ In the case of a one-way pail can, it is possible to save the trouble of cleaning the liquid discharge tube 722 and the trouble of refilling the bag 720 into the outer container 716, which is rather economical overall.

[0017] For example, by forming a pail for a liquid chemical with a double structure in which a molded inner container made of chemical-resistant synthetic resin is surrounded by a metal outer container, it is less expensive than the container according to Patent Document 1. There can be provided a container for liquid medicine with a simple configuration. In addition, the dispenser according to Patent Document 1 distributes liquid chemicals through complicated fluid passages, but by storing the liquid chemicals in the pail can, the pail can is directly pressurized to apply the liquid chemical. Can be distributed. In other words, the dispenser can be easily configured. There is a need for a liquid chemical dispensing device that is combined with such a liquid chemical pail can and a dispenser with a simple configuration that can be connected to the liquid chemical pail can. [0018] Further, the canister can according to Patent Document 1 has a curved bottom surface that protrudes outward, and can be assembled so that the liquid discharge tube is positioned at the center of the bottom surface. Therefore, the canister according to Patent Document 1 is a container excellent in so-called residual liquid characteristics in which almost no liquid chemicals remain inside the container. On the other hand, the pail can has a problem that the liquid chemical tends to remain inside the container because the bottom surface is flat and the liquid discharge tube is assembled at the periphery of the bottom surface. There is a need for a liquid chemical dispensing device that does not easily leave liquid chemicals in pail cans for liquid chemicals and has excellent residual liquid characteristics. And the above is the subject of the present invention! / ,!

[0019] The present invention has been made in view of such problems, and a liquid chemical pail can that can be manufactured at low cost, and a dispenser having a simple configuration that can be connected to the liquid chemical pail can. It is an object of the present invention to provide a liquid chemical dispensing apparatus and a dispensing method having excellent residual liquid characteristics.

Means for solving the problem

[0020] The inventor can easily configure the dispenser by forming a double-structured pail can in which the inner container made of a chemical-resistant synthetic resin in which a container for liquid medicine is molded is surrounded by a metal outer container. Based on this fact, the inventors have invented the following new liquid chemical dispensing apparatus and dispensing method.

[0021] (1) An inner container made of a drug-resistant synthetic resin having a mouth portion that is open so that liquid chemicals can be injected, and an outer container made of metal that constitutes an outer shell of the inner container, A liquid chemical pail can, a dispenser connected to the mouth portion of the pail can, and a liquid medicine distributor, wherein the dispenser is sealed to the mouth so as to be sealed. A main body, a venting means having an opening penetrating from the outside of the plug main body toward the mouth portion, and capable of ventilating compressed fluid into the inner container; one end reaching the bottom surface of the inner container; The other end protrudes from the plug body, and a liquid discharge pipe that is sealably attached to the plug body, and the compressed fluid is pressurized to the air layer of the inner container through the ventilation means. The liquid chemical is discharged from the liquid. Dispensing device for liquid chemicals discharged from the other end of the pipe.

[0022] The liquid medicine dispensing device according to the invention of (1) includes a pail can and a dispenser for liquid medicine. It has. Pail cans for liquid chemicals have an inner container made of chemical-resistant synthetic resin and an outer container made of metal. The inner container is formed in a cylindrical shape and has a mouth portion that opens to allow liquid chemicals to be injected. The outer container constitutes the outer shell of the inner container. Dice Pensa connects to the mouth of the pail.

[0023] Further, in the liquid chemical distribution device according to the invention of (1), the dispenser includes a cylindrical plug body, a ventilation means, and a liquid discharge pipe. The plug body is fastened to the mouth so that it can be sealed. The ventilation means has an opening penetrating from the outside of the plug main body toward the mouth, and is able to vent the compressed fluid into the inside of the inner container. One end of the liquid discharge pipe reaches the bottom surface of the inner container, the other end protrudes from the plug body, and is attached to the plug body so as to be sealed. Then, the compressed fluid is pressurized to the air layer of the inner container through the ventilation means, so that the liquid chemical is discharged from the other end of the liquid discharge pipe.

[0024] The phrase "inner container is formed in a cylindrical shape" includes a shape in which the inner container is formed in a right circular cylinder shape, and the inner container is formed in a truncated cone shape in which the area of the upper surface is larger than the area of the bottom surface. Includes shape. In addition, the fact that the inner container is formed in a cylindrical shape does not exclude that the mouth protrudes from the upper surface of the inner container. Pail cans for liquid chemicals do not necessarily exclude that the inner container is formed into a square tube shape. The inner container is preferably a cylinder rather than a square tube in order to resist deformation such as expansion of the inner container and internal pressure.

[0025] The inner container made of a chemical resistant synthetic resin may be that the inner container is made of a chemical resistant synthetic resin, and can be mass-produced by plastic molding the inner container. Furthermore, an inner container made of a chemical-resistant synthetic resin is an inner container made of a synthetic resin in which chemicals contained in the inner container, that is, chemical substances are in contact with the inner container and are difficult to be contaminated by chemical reaction, for example, ions. Means container. Chemical-resistant synthetic resins include acid-resistant synthetic resins, alkali-resistant synthetic resins, corrosion-resistant synthetic resins, such as polyolefins including polyethylene (PE) and polypropylene (PP).

[0026] The outer container constitutes the outer shell of the inner container where a metal plate can be made to cover the inner container. The outer container protects the inner container or reinforces the mechanical strength of the inner container, and has a structure to which necessary accessories such as a handle and a vine handle are attached.

[0027] The outer container constitutes the outer shell of the inner container. The outer container covers the entire outer periphery of the inner container. It doesn't necessarily mean that the vessel comes into contact. In order to increase the mechanical strength of the outer container itself, an annular zone is provided on the top plate that surrounds the outer periphery of the inner vessel, and the annular zone is formed concentrically with the inner vessel. May be contacted or separated. Further, a hole in which the mouth protrudes is provided in the top plate, and an annular step may be provided around the hole to reinforce so that tensile stress is concentrated in this hole and cracks do not occur.

[0028] The inner container has an opening that can be injected with a liquid medicine, and the liquid medicine can be discharged from the mouth force. The mouth part may be formed integrally with the main body of the inner container formed in a cylindrical shape and welded to the main body of the inner container. In addition, it can be waterproofed so that liquid chemicals do not enter between the inner container and the outer container by inserting an annular packing between the base of the mouth and the outer container.

[0029] For example, the outer container may be a so-called top plate-fixed pail can in which a flat steel plate is formed into a cylindrical shape, a body is manufactured, and the top plate and the base plate are fixed to the body by winding. The top plate is fastened to the fuselage by a band! /, Ru, V, a loose top plate detachable band type pail can have a plurality of claws on the periphery, and this top plate It is also possible to use a so-called top plate detachable lug type pail can, which is fastened to the body by a plurality of claws. The top plate and / or the ground plate may be seam welded to the end of the fuselage as necessary.

[0030] As described above, a pail can formed from a thin steel plate has advantages in that it is easy to manufacture and can be manufactured at a lower cost than a canister formed from a thick steel plate. .

[0031] A pail can for liquid chemicals is provided with a male screw on the outer periphery of the mouth part. The opening of the mouth part is sealed with a cap, and the mouth part is screwed with a lid, so that The pail can is sealed. And it can convey without spilling liquid chemicals. In addition, the dispenser can be easily attached and detached using a mouth portion provided with a male screw on the outer periphery.

[0032] The plug body of the dispenser can be screw-coupled to the mouth of the pail can for liquid chemicals by forming a female thread on the inner periphery of this opening that is open at one end in a circular shape. A plug knurled on the outer periphery of the plug body can be securely screwed to the mouth. Plug body with a seal ring in the opening of the plug body The mouth can be sealed by fastening to the mouth.

[0033] For example, the ventilation means includes an opening penetrating from the outside of the plug main body toward the mouth portion, and includes an L-shaped (elbow-shaped) synthetic resin second joint connected to the opening of the plug main body. Can do. Then, the second joint can be connected to the opening of the plug body so that the compressed fluid can be vented to the inside of the inner container. As the compressed fluid, an inert gas is preferred. For this inert gas, for example, nitrogen gas can be used.

[0034] One end of the liquid discharge pipe reaches the bottom surface of the inner container, the other end projects from the plug body, and is attached to the plug body so as to be sealed. One end of the liquid discharge pipe can be cut diagonally. An L-shaped joint can be connected to the other end of the liquid discharge pipe!

[0035] For example, the plug body may be configured to include a coupling ring, a plug shell, and a seal ring. The coupling ring is screwed onto the outer periphery of the mouth portion. The plug shell is rotatably connected to the coupling ring. The seal ring is held inside the coupling ring, and is in close contact with the end face of the mouth portion to seal the ventilation at the boundary between the coupling ring and the plug shell. The plug shell has a ventilation means and a synthetic resin first joint that detachably fixes the liquid discharge pipe. The plug shell is connected to the coupling ring in a rotatable manner. The supply port of the ventilation means or the discharge port of the liquid discharge pipe can be arranged in any direction. Further, the plug body and the liquid discharge pipe are preferably made of polyolefin.

[0036] A commercially available straight type holder can be used for the first joint. This holder can hold the liquid discharge pipe slidably on the plug body. In addition, this holder can detachably fix the liquid discharge pipe. For example, this holder is constituted by a bolt-shaped hollow main body and a cap nut having an open center. The bolt-shaped main body can hold the liquid discharge pipe slidably, has a male screw portion that can be fastened to the plug main body on one end side, and has a conical sleeve on the other end side. When the cap nut is fastened to the other end of the bolt-shaped body, the sleeve is reduced in diameter, and the liquid discharge pipe can be fixed to the holder. When the cap nut is opened from the other end of the bolt-shaped body, the sleeve returns and the liquid discharge pipe can be pulled out.

[0037] Thus, using the holder, one end of the liquid discharge pipe reaches the bottom surface of the inner container. You can adjust the position. Then, the compressed fluid is pressurized to the air layer of the inner container through the aeration means, so that the liquid chemical is also discharged from the other end of the liquid discharge pipe. This liquid drug contains a photosensitive resin composition.

[0038] The liquid chemical dispensing apparatus according to the invention of (1) is a container for liquid chemicals by forming a double-structured pail can in which a molded inner container made of a chemical-resistant synthetic resin is surrounded by a metal outer container. Can be provided at low cost. The dispenser has a simple configuration comprising a cylindrical plug body, a venting means, and a liquid discharge pipe. The dispenser is a liquid chemical by directly pressurizing a liquid can pail through the venting means provided in the dispenser. Can be distributed. Furthermore, by using the tilt table to place the liquid chemical pail cans in an inclined manner, the liquid chemicals can hardly remain in the liquid chemical pail cans.

[0039] (2) The mouth portion is disposed in the vicinity of the periphery of the inner container, and one end of the liquid discharge pipe is made to reach the bottom surface portion of the inner container facing the mouth portion, so as to face the mouth portion. The liquid chemical dispensing apparatus according to (1), wherein the pail can is disposed at an angle so that the part is positioned downward.

[0040] The liquid chemical distribution device according to the invention of (2) is a liquid chemical that is excellent in residual liquid characteristics because the liquid chemical does not remain in the liquid chemical pail can by inclining the liquid chemical pail can. It is a distribution device.

[0041] (3) The apparatus according to (2), further comprising a tilting table including a main body forming a slope and a pair of fall prevention poles erected on the lower side of the slope, wherein the pail can is disposed at a tilt. Dispensing device for liquid medicine.

[0042] The main body of the tilting table is formed in a substantially trapezoidal box shape in which the four circumferences of the developed metal plate are folded, and is a substantially triangular box in which the three circumferences of the developed metal plate are folded. It may be formed in a shape. You may reinforce a slope by providing a rib inside the main body formed in a box shape. The main body of the tilting table may be a block body that forms a slope on the upper surface.

[0043] The fall prevention pole may be a hollow round pipe or a round bar. One end of the anti-falling pole may be screwed to the main body of the tilting table which may be welded to the main body of the tilting table. A male screw is provided at one end of the anti-falling pole, a female screw is provided on the main body of the tilting table, and a female screw is provided on one end of the anti-falling pole that is connected to the main body of the anti-falling pole. A hole into which the screw member of the main body of the base is inserted may be provided, and the fall prevention pole and the main body of the inclined base may be coupled by this screw member.

[0044] The pair of fall prevention poles is smaller than the diameter of the liquid chemical pail can! /, And the liquid chemical pail placed on the slope of the main body is preferably disposed at a distance. The can is prevented from falling. The pair of fall prevention poles are preferably higher than the center of gravity of the pail can filled with liquid chemical, which is preferably lower than the height of the pail can for liquid chemical.

[0045] (4) The liquid medicine dispensing device according to (2) or (3), wherein the pail can is disposed at an inclination of 12 degrees or more and 30 degrees or less with respect to a horizontal plane.

[0046] If the pail can is tilted to less than 12 degrees, the liquid chemical tends to remain inside the pail, and if the pail can is tilted to exceed 30 degrees, the liquid chemical is applied to the mouth at the beginning of the tilted layout. There is a possibility of overflowing.

[0047] (5) An inner container made of a drug-resistant synthetic resin having a mouth portion that is formed so as to be able to inject liquid chemicals, and a metal outer container that constitutes the outer shell of the inner container, A liquid medicine pail can, and a dispenser connected to the mouth portion of the pail can, the method of dispensing the liquid medicine, wherein the dispenser is sealed to the mouth portion A cylindrical plug main body, an opening penetrating from the outside of the plug main body toward the mouth, and allowing the compressed fluid to vent into the inner container; one end of the inner container And the other end protrudes from the plug body, and a liquid discharge pipe is attached to the plug body so as to be able to be sealed, and the compressed fluid is added to the air layer of the inner container through the ventilation means. Liquid chemicals by being pressed A method for distributing liquid chemicals discharged from the other end of the liquid discharge pipe.

[0048] (6) The mouth portion is disposed in the vicinity of the periphery of the inner container, and one end of the liquid discharge pipe is made to reach a portion of the bottom surface of the inner container facing the mouth portion so as to face the mouth portion. The method for dispensing liquid chemicals according to (5), wherein the pail cans are disposed at an angle so that the site is at the bottom.

[0049] (7) The pail can is arranged in an inclined manner using an inclined table including a main body forming a slope and a pair of fall prevention poles erected on the lower side of the slope. Dispensing method for liquid chemicals. [0050] (8) The method for dispensing a liquid medicine according to (6) or (7), wherein the pail can is disposed at an inclination of 12 degrees or more and 30 degrees or less with respect to a horizontal plane.

[0051] (9) A pail can for liquid medicine comprising an inner container made of a chemical-resistant synthetic resin formed in a cylindrical shape and a metal outer container constituting the outer shell of the inner container, The inner container has a mouth that opens to allow injection of liquid chemicals, and the outer container has a top plate having a hole from which the mouth projects, a body that surrounds the outer periphery of the inner container, and the inner container A base plate that abuts against the bottom surface of the liquid container, and the outer container has a rigidity to prevent deformation of the inner container against an internal pressure applied to the inner container.

[0052] The liquid chemical pail can according to the invention of (9) includes an inner container made of a chemical resistant synthetic resin and an outer container made of a metal. The inner container is formed in a cylindrical shape. The outer container constitutes the outer shell of the inner container. The inner container has a mouth that opens to allow injection of liquid chemicals. The outer container has a top plate, a body, and a ground plate. The top plate has a hole through which the mouth projects. The fuselage surrounds the outer periphery of the inner container. The main plate is in contact with the bottom surface of the inner container. The outer container has rigidity so as to prevent deformation of the inner container against the internal pressure applied to the inner container.

In the liquid chemical pail can according to the invention of (9), the inner container is pressurized with a compressed fluid such as nitrogen, and the liquid chemical is discharged. Here, the outer container has rigidity so as to prevent deformation of the inner container against the internal pressure applied to the inner container. Having rigidity means that the outer container has a mechanical structure so that the inner container does not deform due to expansion or the like, including that the outer container is formed of a rigid metal plate. Can include

[0054] The liquid chemical pail can according to the invention of (9) does not have a configuration in which the liquid chemical pail can is transported with a coupling with a liquid discharge tube built therein, and the liquid dispenser side has a liquid canister. Since it has a configuration with a discharge tube, it is possible to reduce the manufacturing cost of liquid chemical containers.

[0055] Further, the liquid chemical pail can according to the invention of (9) is a one-way type container which is discarded after the liquid chemical pail can is discharged, but the liquid discharge tube is washed. Compared to a double-container type liquid medicine container, there is an advantage in that it is less expensive and requires refilling the bag into the outer container.

[0056] Further, in the liquid chemical pail can according to the invention of (9), the inner wall of the metal can in the liquid chemical pail can is not coated with a synthetic resin film. A metal outer container forms the outer shell! Such a double pail can can be easily separated and disassembled from metal and synthetic resin, and can be used for resource recycling.

[0057] (10) The liquid chemical pail can according to (9), wherein the top plate and the base plate are fixed to the body by tightening.

[0058] (11) The pail for liquid medicine according to (9), wherein the top plate is fastened to the body by a band.

[0059] (12) The liquid chemical pail can according to (9), wherein the top plate has a plurality of claws on the periphery, and the top plate is fastened to the body by the plurality of claws.

[0060] (13) The liquid chemical pail can according to (10), wherein a suspension is provided on the top plate.

[0061] For example, a mounting bracket that rotatably supports the suspension hand may be joined to the top plate by spot welding. It is preferable that the hanger is arranged at the approximate center of the top plate.

[0062] (14) The configuration according to (11) or (12), comprising: a pair of ears provided on the top plate side of the body, and a vine handle rotatably connected to the pair of ears Pail bowl for liquid chemicals.

[0063] For example, a pair of mounting brackets that serve as a wheel that rotatably supports a vine handle may be joined to the top plate side of the body by spot welding.

[0064] (15) The pail can for liquid medicine according to (9), wherein the body is formed in a right cylindrical shape.

(16) The liquid medicine pail can according to (9), wherein the body is formed in a conical trapezoidal shape in which an area on the top plate side is larger than an area on the ground plate side.

[0066] (17) The liquid chemical according to (9), wherein a damage protector is provided on either the periphery of the top plate, the periphery of the base plate, or both of the periphery of the top plate and the periphery of the base plate Pail can for

[0067] Either the peripheral edge of the top plate or the peripheral edge of the main plate, or the peripheral edge of the top plate and the peripheral edge of the main plate By providing damage protectors on both sides, damage during transfer can be prevented.

[0068] (18) A drug-resistant synthetic resin-made inner container that has a mouth portion that is formed in a cylindrical shape so as to allow injection of liquid chemicals, and a metal outer container that constitutes the outer shell of the inner container. Pail can for liquid medicine A dispenser connected to the mouth, and a cylindrical plug body that is sealed to the mouth so as to be hermetically sealed, and a penetrating force to the mouth from the outside of the plug body. A venting means having an opening and capable of venting compressed fluid inside the inner container, one end reaching the bottom surface of the inner container, and the other end protruding from the plug body, so that the plug body can be sealed. A dispenser, and a dispenser in which liquid chemical is discharged from the other end of the liquid discharge pipe by pressurizing the compressed fluid to the air layer of the inner container through the ventilation means. .

[0069] The dispenser according to the invention of (18) is connected to the mouth of the liquid chemical pail can. A liquid chemical pail can has an inner container made of chemical-resistant synthetic resin and an outer container made of metal. The inner container is formed in a cylindrical shape, and has a mouth portion that is open so that liquid chemicals can be injected. The outer container constitutes the outer shell of the inner container.

[0070] The dispenser according to the invention of (18) includes a cylindrical plug body, a ventilation means, and a liquid discharge pipe. The plug body is fastened to the mouth so as to be sealed. The vent means has an opening penetrating from the outside of the plug main body toward the mouth portion, and is capable of venting the compressed fluid into the inside of the inner container. One end of the liquid discharge pipe reaches the bottom surface of the inner container, the other end protrudes from the plug body, and is attached to the plug body so as to be sealed. Then, the compressed fluid is pressurized to the air layer of the inner container through the ventilation means, so that the liquid chemical is discharged from the other end of the liquid discharge pipe.

[0071] The dispenser according to the invention of (18) has a simple configuration including a cylindrical plug body, a ventilation means, and a liquid discharge pipe, and a liquid medicine pail can is provided via the ventilation means provided in the dispenser. Liquid chemicals can be dispensed by directly pressurizing.

(19) The plug body is held inside the force coupling ring, a coupling ring threadably engaged with the outer periphery of the mouth portion, a plug shell rotatably connected to the force coupling ring, and the mouth portion. A seal ring that is in close contact with the end surface of the coupling ring and seals ventilation at a boundary between the coupling ring and the plug shell, and the plug shell includes the ventilation hand. The dispenser according to (18), wherein a step and a synthetic resin first joint for detachably fixing the liquid discharge pipe are arranged!

[0073] In the dispenser according to the invention of (19), since the plug shell in the dispenser is rotatably connected to the coupling ring, the supply port of the ventilation means or the discharge port of the liquid discharge pipe is oriented in an arbitrary direction. Can be placed.

(20) The dispenser according to (18) or (19), wherein the ventilation means includes a second joint made of an L-shaped synthetic resin connected to the opening of the plug body.

The invention's effect

[0075] The liquid medicine dispensing apparatus according to the present invention includes a liquid medicine pail can and a dispenser connected to the mouth of the pail can. Pail cans for liquid chemicals have a double structure in which a molded inner container made of chemical-resistant synthetic resin is enclosed by a metal outer container, which has the advantage of being easy to manufacture and inexpensive to manufacture.

[0076] Further, the liquid medicine dispensing apparatus according to the present invention can dispense the liquid medicine by directly pressurizing a pail can for the liquid medicine through the ventilation means provided in the dispenser. Furthermore, by using a tilting table and tilting the liquid chemical pail cans, the liquid chemicals can hardly remain in the liquid chemical pail cans.

[0077] The liquid chemical pail can according to the present invention is a double-structured pail can in which a molded inner container made of chemical-resistant synthetic resin is surrounded by a metal outer container, and can be manufactured at low cost. A one-way liquid chemical pail can that can be easily separated and disassembled.

[0078] The dispenser according to the present invention has a simple configuration including a cylindrical plug body, a ventilation means, and a liquid discharge pipe force, and directly pressurizes a pail can for liquid chemicals through the ventilation means provided in the dispenser. Liquid chemicals can be dispensed.

Brief Description of Drawings

FIG. 1 is a perspective external view showing an embodiment of a liquid chemical pail can provided in a liquid chemical distribution apparatus according to the present invention.

FIG. 2 is a front view showing an embodiment of a dispenser connected to a pail can for liquid medicine according to the embodiment, showing the main part in a cross section. 3] It is an exploded view of the dispenser according to the embodiment, and is a state diagram in which a pail can for liquid medicine is connected.

4] A perspective external view of a liquid chemical pail can according to the above embodiment, showing a top plate detachable band type liquid chemical pail can.

5] A perspective external view of a liquid chemical pail can according to the embodiment, showing a detachable rug type liquid chemical pail can.

6] A perspective view of a liquid chemical pail can according to the embodiment, in which a damage protector is provided on the periphery of the top plate and the periphery of the base plate, and the trunk is formed into a taper. The pail can is shown.

7] A perspective view of a pail can for liquid medicine according to the embodiment described above, which is provided with a damage protection body on the periphery of the top plate and the periphery of the base plate, and for the S-type liquid medicine in which the body is formed straight. Shows a pail can.

FIG. 8] A perspective external view showing a state immediately before the dispenser according to the embodiment is connected to a pail can for liquid medicine.

FIG. 9] A perspective external view showing a state in which the plug body of the dispenser according to the embodiment is fastened to the mouth of the pail can for liquid medicine.

FIG. 10] A perspective external view showing a state where the dispenser according to the embodiment is connected to a pail can for liquid medicine.

11] FIG. 11 is a perspective external view of a tilting table according to a first example in which pail cans for liquid medicine according to the embodiment are tilted at 12 degrees.

12] A perspective external view of a tilting table according to a second example in which the pail can for liquid medicine according to the above-described embodiment is inclined at 30 degrees.

13] FIG. 13 is a perspective external view in which a liquid chemical pail can is arranged on the tilting table according to the first embodiment.

14] FIG. 14 is a perspective external view in which a pail can for liquid medicine is arranged on the tilting table according to the second embodiment.

FIG. 15 is a front view of a conventional liquid chemical dispensing apparatus comprising a container and a dispenser, with the main part in cross section. Explanation of symbols

[0080] 1 Inner container

2 Outer container

10 Pail cans (containers) for liquid chemicals

11 mouth

40 Dispensers

41 Plug body

42 Ventilation means

42b opening

43 Liquid discharge pipe

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

FIG. 1 is a perspective external view showing an embodiment of a liquid medicine pail can provided in a liquid medicine dispensing apparatus according to the present invention. FIG. 2 is a front view showing an embodiment of the dispenser connected to the liquid chemical pail can according to the above-described embodiment, and shows a cross section of the main part. FIG. 3 is an exploded view of the dispenser according to the embodiment, in which a pail can for liquid medicine is connected.

FIG. 4 is a perspective external view of the liquid chemical pail can according to the embodiment, and shows a top plate detachable band type liquid chemical pail can. FIG. 5 is a perspective external view of a liquid chemical pail can according to the embodiment, showing a rug type liquid chemical pail can with a detachable top plate.

FIG. 6 is a perspective external view of a liquid chemical pail can according to the above embodiment, in which a damage protection body is provided on the periphery of the top plate and the periphery of the base plate, and the body is tapered. Pail can for liquid chemicals is shown. FIG. 7 is a perspective external view of the liquid chemical pail can according to the embodiment, in which a damage protection body is provided on the periphery of the top plate and the periphery of the base plate, and the body is formed straight. A chemical pail can is shown.

FIG. 8 is a perspective external view showing a state immediately before the dispenser according to the embodiment is connected to the liquid chemical pail can. FIG. 9 shows a dispenser bra according to the embodiment. FIG. 4 is a perspective external view showing a state where the main body is fastened to the mouth of a liquid chemical pail can. FIG. 10 is a perspective external view showing a state in which the dispenser according to the embodiment is connected to a liquid chemical pail.

[0086] FIG. 11 is a perspective external view of the tilting table according to the first example in which the liquid chemical pail cans according to the above-described embodiment are tilted by 12 degrees. FIG. 12 is a perspective external view of a tilting table according to a second example in which pail cans for liquid medicine according to the above-described embodiment are tilted at 30 degrees. FIG. 13 is a perspective external view in which a pail can for liquid medicine is arranged on the inclined table according to the first embodiment. FIG. 14 is a perspective external view in which a pail can for liquid medicine is arranged on the tilting table according to the second embodiment.

First, the configuration of a liquid chemical pail can provided in the liquid chemical dispensing apparatus according to the present invention will be described. In FIG. 1, a pail can 10 for liquid medicine (hereinafter referred to as a container 10) includes an inner container 1 made of a chemical-resistant synthetic resin and an outer container 2 made of a metal. The inner container 1 is formed in a cylindrical shape. The outer container 2 constitutes the outer shell of the inner container 1. The inner container 1 has a mouth 11 that opens to allow injection of liquid chemicals.

In FIG. 1, the outer container 2 has a top plate 21, a body 22, and a base plate 23. The top plate 21 has a hole 2a from which the mouth portion 11 protrudes. The body 22 surrounds the outer periphery of the inner container 1. The base plate 23 is in contact with the bottom surface of the inner container 1.

[0089] The inner container 1 shown in FIG. 1 is formed in a conical trapezoidal shape in which the area of the upper surface is larger than the area of the bottom surface. The inner container 1 is molded from a chemical resistant synthetic resin. The inner container 1 is made of plastic with a mouth 11!

In FIG. 1, the outer container 2 is made of a metal plate so as to cover the inner container 1, and constitutes the outer shell of the inner container 1. The outer container 2 does not necessarily contact the entire outer periphery of the inner container 1. In FIG. 4 or FIG. 5, the trunk 22 surrounding the outer periphery of the inner container 1 (not shown) is provided with an annular zone 22a to increase the mechanical strength of the outer container 2 itself. The annular zone 22a is partially separated from the inner container 1.

In FIG. 1, the top plate 21 is provided with a plurality of annular zones 21a concentrically so as to increase the mechanical strength of the outer container 2 itself. The annular zone 21 a is in partial contact with the inner container 1. An annular step 21b is provided around the hole 2a, and tensile stress is concentrated in the hole 2a. The crack will not occur! /, And it will be reinforced like this! / (See Fig. 2).

In FIG. 1, a male screw 11a is formed on the outer periphery of the mouth portion 11 (see FIG. 2). The container 10 is sealed by sealing the opening of the mouth portion 11 with the cap 31 and screwing the mouth portion 11 with the lid 32. And it can be transported without spilling liquid chemicals.

[0093] The outer container 2 shown in Fig. 1 is a so-called top plate fixing in which a flat steel plate is formed into a cylindrical shape to produce a body 22, and the top plate 21 and the base plate 23 are fixed to the body by winding. It is a formula can. The outer container 2 shown in FIG. 1 includes a top plate 21 and a handle 24. A mounting bracket 24a that rotatably supports the suspension 24 is joined to the top plate 21 by spot welding. The hanger 24 is disposed substantially at the center of the top plate 21.

[0094] The outer container 2 shown in Fig. 4 is a so-called top plate removal, in which a plate-shaped steel plate is formed into a cylindrical shape to produce a body 22, and the top plate 21 is fastened to the body 22 by a band 2b. It is a band-type pail can. Also, the outer container 2 shown in FIG. 4 includes a pair of ears 25a'25b provided on the top plate 21 side of the body 22, and a handle in a slidable manner that is rotatably connected to the pair of ears 25a'25b. 25. The mounting brackets that form the pair of ears 25a and 25b are joined to the top plate 21 side of the body 22 by spot welding! /.

The outer container 2 shown in FIG. 5 has a plurality of claws 2 c on the periphery of the top plate 21. The body 22 is manufactured by forming a flat steel plate into a cylindrical shape, and the top plate 21 is a so-called top plate detachable lag type pail can that is fastened to the moon body 22 by a plurality of claws 2c. ing. Further, the outer container 2 shown in FIG. 5 includes a pair of ears 25a and 25b provided on the top plate 21 side of the body 22, and a pair of hook-like handles rotatably connected to the pair of ears 25a and 25b. 25. The mounting brackets that form the pair of ears 25a and 25b are joined to the top plate 21 side of the body 22 by spot welding! /.

[0096] As shown in Fig. 4, the outer container 2 is a so-called ceiling, in which a flat steel plate is formed into a cylindrical shape to produce a body 22, and the top plate 21 is fastened to the body 22 by a band 2b. A plate-removable band-type pail can may be used. In addition, as shown in FIG. 5, this top-plate-removable band type pail can has a pair of ears 25a and 25b on the top plate 21 side of the fuselage 22 and can rotate with the pair of ears 25a and 25b. There may also be a vine handle 25 that connects to the. Further, as shown in FIG. 5, the outer container 2 is formed by forming a body 22 by forming a flat steel plate into a cylindrical shape, and the top plate 21 is fastened to the body 22 by a plurality of claws 2c. It is also possible to use a so-called detachable rug-type pail can. Also, a vine handle 25 can be provided on a rugged pail can with a detachable top plate.

[0098] As shown in Fig. 1 or Fig. 6, the fuselage 22 may be formed in the shape of a conical trapezoid whose area on the top plate 21 side is larger than the area on the base plate 23 side, as shown in Fig. 7. In addition, the body 22 may be formed in a right cylindrical shape (see FIGS. 4 and 5). Thus, a pail can formed from a thin steel plate is easier to manufacture and can be manufactured at a lower cost than a canister formed from a thick steel plate.

Further, as shown in FIGS. 6 and 7, by providing the damage protectors 26 on both the periphery of the top plate 21 and the periphery of the base plate 23, damage to the container 10 during transfer can be prevented. For example, the damage protector 26 is a bendable synthetic resin band that forms a groove in the longitudinal direction, and the groove is attached by being fitted to the periphery of the top plate 21 and the periphery of the base plate 23. In the case of the conical container 10 shown in FIG. 6, the damage protector 26 may be provided only on the top plate 21 side. When the conical containers 10 are arranged side by side vertically and horizontally, damage around the top plate 21 can be prevented.

[0100] Next, the configuration of the dispenser provided in the liquid medicine dispensing device according to the present invention will be described. In FIG. 2 or FIG. 3, the dispenser 40 can be easily attached to and detached from the container 10 using the mouth portion 11 provided with the male screw 11a on the outer periphery. The dispenser 40 includes a cylindrical plug body 41, a venting means 42 capable of ventilating the compressed fluid into the inner container, and a liquid discharge pipe 43.

[0101] In Fig. 2 or Fig. 3, one end of the plug body 41 is opened in a circular shape, and by forming a female female 411 on the inner periphery of this opening, the plug body 41 can be screwed to the mouth portion 11 . A streak knurled 412 is formed on the outer periphery of the plug main body 41 so that the plug main body 41 can be securely screwed to the mouth portion 11. In addition, a seal ring 41a is built in the opening of the plug body 41, and the mouth part 11 can be sealed by fastening the plug body 41 to the mouth part 11.

[0102] In Fig. 2 or Fig. 3, the ventilation means 42 includes an opening 42b penetrating from the outside of the plug body 41 toward the mouth portion 11, and is made of an L-shaped (elbow-shaped) synthetic resin connected to the opening 42b. A second joint 42a. The second joint 42a can be a commercially available elbow-type quick joint. Then, the second joint 42a is connected to the opening 42b of the plug body 41 so that the compressed fluid can be vented to the inside of the inner container 1.

In FIG. 2, one end of the liquid discharge pipe 43 reaches the bottom surface of the inner container 1 and the other end protrudes from the plug body 41 and is attached to the plug body 41 so as to be sealed. One end 431 of the liquid discharge pipe 43 is cut obliquely, and an L-shaped joint 45 is connected to the other end 432 of the liquid discharge pipe 43. For joint 45, a commercially available elbow quick fitting can be used.

In FIG. 2 or FIG. 3, the joint 45 is composed of a joint body 45a and a cap nut 45b whose center is opened. The other end 432 of the liquid discharge pipe 43 has a conical step, and can be sealed by fastening the cap nut 45b to the joint body 45a.

In FIG. 2 or FIG. 3, the plug body 41 is composed of a coupling ring 41r, a plug shell 41s, and a seal ring 41a. The coupling ring 41r can be screwed onto the outer periphery of the mouth portion 11. The plug shell 41s is rotatably connected to the coupling ring 41r.

In FIG. 2 or FIG. 3, the plug shell 41 s has a flange formed on one end side, making it difficult to remove the opening force on the other end side of the coupling ring 41 r. The plug shell 41s is inserted and assembled from the opening on one end side of the coupling ring 41r, but is blocked by the seal ring 41a, and the opening force on one end side of the coupling ring 41r is difficult to remove.

[0107] In Fig. 2 or Fig. 3, the seal ring 41a is held inside the coupling ring 41r and is in close contact with the end surface of the mouth portion 11, thereby ventilating the boundary between the coupling ring 41r and the plug shell 41s. Seal. The plug shell 41s is provided with a ventilation means 42 and a first joint 44 made of a synthetic resin for detachably fixing the liquid discharge pipe 43.

In FIG. 2 or FIG. 3, a commercially available straight type holder can be used for the first joint 44. The first joint 44 can hold the liquid discharge pipe 43 slidably on the plug body 41. The first joint 44 can detachably fix the liquid discharge pipe 43.

[0109] In Fig. 2 or Fig. 3, the first joint 44 includes a bolt-shaped hollow main body 44a and a center. And an open cap nut 44b. The bolt-shaped main body 44a can hold the liquid discharge pipe 43 in a slidable manner, has a male screw portion 441 that can be fastened to the plug shell 41s on one end side, and a conical sleeve 442 on the other end side. When the cap nut 44b is fastened to the other end of the bolt-shaped main body 44a, the sleeve 442 has a reduced diameter, and the liquid discharge pipe 43 can be fixed to the first joint 44. When the cap nut 44b is opened from the other end side of the bolt-shaped main body 44a, the sleeve 442 is restored and the liquid discharge pipe 43 can be pulled out.

In this way, the first joint 44 can be used to adjust the position so that one end of the liquid discharge pipe 43 reaches the bottom surface of the inner container 1. Then, the compressed fluid is pressurized to the air layer of the inner container 1 through the aeration means 42, whereby the liquid chemical is discharged from the other end of the liquid discharge pipe 43.

[0111] Next, the configuration of the tilting table provided in the liquid medicine distribution device according to the present invention will be described. In FIG. 11, the tilting table 50 according to the first embodiment includes a main body 51 and a pair of fall prevention poles 52 and 52. The main body 51 forms a slope 51a inclined at 12 degrees with respect to a floor surface that is a horizontal plane. The pair of fall prevention poles 52 · 52 are erected on the lower side of the slope 51a.

[0112] In FIG. 11, the main body 51 is made of a metal plate such as a stainless steel plate, and is formed in a substantially trapezoidal box shape in which the four surroundings of the developed metal plate are bent and the opposite surface of the slope 51a is opened. It is. The fall prevention pole 52 is made of a metal round bar such as stainless steel, and an internal thread (not shown) is provided at one end of the fall prevention pole 52. On the other hand, the body 51 is provided with a hole (not shown) for receiving a screw member such as a bolt. Then, the fall prevention pole 52 is fixed to the main body 51 with this Bonole (not shown)!

In FIG. 12, the tilting table 60 according to the second embodiment includes a main body 61 and a pair of fall prevention poles 6 2 · 62. The main body 61 forms a slope 61a that is inclined at 30 degrees with respect to a floor surface that is a horizontal plane. The pair of fall prevention poles 62 and 62 are erected on the lower side of the slope 6 l a.

[0114] In FIG. 12, the main body 61 is made of a metal plate such as a stainless steel plate, and is formed in a triangular box shape in which the three surroundings of the developed metal plate are bent and the opposite surface of the slope 61a is opened. It is. The fall prevention pole 62 is made of a metal round bar such as stainless steel, and an internal thread (not shown) is provided at one end of the fall prevention pole 62. On the other hand, the body 61 has no bolts. A hole (not shown) into which any screw member enters is provided. And the fall prevention pole 62 is fixed to the main body 61 with this Bonole (not shown)!

Next, the operation of the liquid chemical pail can according to the present invention will be described.

[0116] In the container 10 according to the present invention, the inner container 1 is pressurized with a compressed fluid such as nitrogen, and the liquid drug is discharged. The outer container 2 is rigid so as to prevent deformation of the inner container 1 against the internal pressure applied to the inner container 1. Rigidity means that the outer container 2 has a mechanical structure so that the inner container 1 does not deform due to expansion or the like, including that the outer container 2 is formed of a rigid metal plate. It can include having.

[0117] For example, the container 10 shown in FIG. 1 is a pail can with a rated capacity of 20 liters, and has a resistance to 0.5 kgf / cm ² . The inner container 1 has a force S for containing a liquid chemical containing a photosensitive resin composition which is molded with polyolefin such as polyethylene (PE) or polypropylene (PP).

[0118] The pail can for liquid chemicals according to the present invention is a pail can whose outer container is formed from a thin steel plate, and compared to a canister that is formed from a thick steel plate. It has the advantage of being easy and inexpensive to manufacture.

[0119] The liquid chemical pail can according to the present invention is not configured to be transported by incorporating a coupling with a liquid discharge tube, and is configured to include a liquid discharge tube on the dispenser side. It is also possible to reduce the manufacturing cost of chemical containers.

[0120] In addition, the liquid chemical pail can according to the present invention is a one-way type container that is discarded after the liquid chemical has been discharged. Compared to a double-container type liquid chemical container, there is an advantage that it is economical overall.

[0121] Further, in the pail can for liquid chemicals according to the present invention, the inner wall of the metal can is not coated with the synthetic resin film, and the inner container made of the synthetic resin is composed of the outer container made of metal and the outer shell. Yes. Such a double-structured pail can can be easily separated and disassembled from metal and synthetic resin, and can be used for resource reuse.

[0122] A liquid chemical pail can according to the present invention and a container according to Patent Document 1 each contain a photoresist, and the time-dependent change in water (%) and metal atomic weight (ppb) contained in the photoresist. Table 1 shows the results of the comparison. In Table 1, circle number 1 indicates the photoresist contained in the liquid chemical pail can according to the present invention, and circle number 2 indicates the container according to Patent Document 1.

[table 1]

[0123] As shown in Table 1, even after 3 months, there is almost no difference in the quality of the liquid chemical accommodated between the liquid chemical pail can according to the present invention and the container according to Patent Document 1. It was proved.

[0124] In addition, the power of comparing the time-dependent changes in the sensitivity, viscosity, film thickness, etc. of the photoresist. The liquid chemical pail can according to the present invention and the container according to Patent Document 1 It has been proven that there is little difference in quality. Pail cans for liquid chemicals according to the present invention that can be provided at low cost because it has been demonstrated that even a pail can with a large area where the liquid chemicals contact the air layer does not affect the quality of the liquid chemicals contained. Is expected to spread.

Next, the operation of the dispenser according to the present invention will be described.

As shown in FIG. 2, in the dispenser 40, the first joint 44, the liquid discharge pipe 43, and the second joint 42a are incorporated in the plug body 41 in advance. A joint 45 is connected to the liquid discharge pipe 43. In this way, the dispenser 40 in which the respective elements are integrated is inserted into the mouth portion 11 of the container 10 with the liquid discharge pipe 43 at the top (see FIG. 8).

Next, as shown in FIG. 9, the plug body 41 is rotated and fastened to the mouth portion 11 of the container 10. Thus, the dispenser 40 can be fixed to the container 10 (see FIG. 8). In the connected state shown in FIG. 10, the tip position of the liquid discharge pipe 43 can be adjusted by loosening the cap nut 44b. Further, by loosening the coupling ring 41r (see FIG. 2), the plug shell 41 s (see FIG. 2) can be rotated to an arbitrary angle.

[0128] In FIG. 10, the tube 42c is connected to the second joint 42a, and an inert gas such as nitrogen gas is supplied from the edge of the tube 42c. Then, the compressed fluid is pressurized and the liquid chemical is discharged from the joint 45 through the liquid discharge pipe 43 (see Fig. 2).

[0129] The dispenser according to the present invention has a simple configuration including a cylindrical plug body, a ventilation means, and a liquid discharge pipe force, and directly pressurizes a pail can for liquid chemicals through the ventilation means provided in the dispenser. Liquid chemicals can be dispensed.

[0130] In addition, the dispenser according to the present invention is configured so that the plug body and the liquid discharge pipe are made of polyolefin and do not affect the quality of the liquid chemical. The various joints are also made of polyolefin!

[0131] Next, the operation of the tilting table provided in the liquid medicine distribution device according to the present invention will be described.

In FIG. 15, an outer container 716 serving as a canister according to Patent Document 1 has a curved surface with a bottom surface protruding outward, and a liquid discharge tube 722 is positioned at the center of the bottom surface. Can be assembled. Therefore, the outer container 716 according to Patent Document 1 has become a container excellent in so-called residual liquid characteristics in which liquid chemicals hardly remain inside the container.

On the other hand, the container 10 to be a pail can shown in FIG. 1 is assembled so that the bottom surface of the inner container 1 and the bottom plate 23 are flat, and the liquid discharge pipe 43 is positioned at the periphery of the bottom surface of the inner container 1. (See Figure 2). Therefore, liquid chemicals are likely to remain inside the container simply by placing the container 10 on the floor. Although it is easy for the inner container 1 to form a curved surface whose bottom surface protrudes outward, it is difficult to manufacture the outer container 2 so as to be in close contact with the inner container 1. There are also circumstances.

Here, an attempt was made to improve the residual liquid characteristics by arranging the container 10 in an inclined manner. FIG. 13 shows that the container 10 is tilted by using a tilting table 50 that forms a slope 51a inclined at 12 degrees with respect to a horizontal plane. It is diagonally arranged (see Fig. 11). In FIG. 13, it was confirmed that the liquid drug did not overflow from the mouth 11 when the container 10 was placed at an angle (see FIG. 2). Then, the dispenser 40 is connected to the container 10 (see FIG. 10), and as a result of distributing the aqueous solution filled in the container 10, the residual liquid becomes about 100 g, which is substantially the same as the residual liquid in the canister according to Patent Document 1. Residual liquid characteristics were obtained. If the pail can is inclined at less than 12 degrees, liquid chemicals tend to remain inside the pail. In FIG. 9, the container 10 is formed in a right truncated cone shape.

[0135] In Fig. 14, the container 10 is disposed in an inclined manner using an inclined table 60 that forms an inclined surface 61a inclined at 30 degrees with respect to the horizontal plane (see Fig. 11). In Fig. 14, it was confirmed that if the container 10 is tilted over 30 degrees, liquid chemicals may overflow from the mouth 11 at the beginning of the tilting (see Fig. 2). Then, the dispenser 40 is connected to the container 10 (see FIG. 10), and as a result of distributing the aqueous solution filled in the container 10, the residual liquid becomes about 100 g, which is substantially the same as the residual liquid in the canister according to Patent Document 1. Residual liquid characteristics were obtained. In FIG. 14, the container 10 is formed in a right cylindrical shape!

[0136] The liquid medicine dispensing device according to the present invention includes a liquid chemical pail can and a dispenser connected to the mouth of the pail can. Pail cans for liquid chemicals have a double structure in which a molded inner container made of chemical-resistant synthetic resin is enclosed by a metal outer container, which has the advantage of being easy to manufacture and inexpensive to manufacture.

[0137] The liquid chemical dispensing apparatus according to the present invention can dispense the liquid chemical by directly pressurizing a liquid chemical pail can through the ventilation means provided in the dispenser. Furthermore, by using a tilting table and tilting the liquid chemical pail cans, the liquid chemicals can hardly remain in the liquid chemical pail cans.

[0138] The liquid chemical pail can according to the present invention is a double-structured pail can in which a molded inner container made of chemical-resistant synthetic resin is surrounded by a metal outer container. A one-way liquid chemical pail can that can be easily separated and disassembled.

[0139] The dispenser according to the present invention has a simple structure including a cylindrical plug body, a ventilation means, and a liquid discharge pipe force, and directly pressurizes a pail can for liquid chemicals through the ventilation means provided in the dispenser. Liquid chemicals can be dispensed.

Claims

The scope of the claims

[1] A liquid chemical comprising an inner container made of a chemical-resistant synthetic resin having a mouth portion that is formed in a cylindrical shape so as to allow injection of liquid chemical, and a metal outer container that constitutes the outer shell of the inner container A liquid chemical dispensing device comprising: a pail can for use, a dispenser connected to the mouth of the pail can,

The dispenser has a cylindrical plug body that is fastened to the mouth so as to be sealed, and an opening that penetrates from the outside of the plug body toward the mouth, and vents compressed fluid into the inside of the inner container. A possible venting means, and one end reaches the bottom surface of the inner container, the other end protrudes from the plug body, and a liquid discharge pipe that is sealably attached to the plug body,

The liquid medicine distribution device in which the liquid medicine is discharged from the other end of the liquid discharge pipe by pressurizing the compressed fluid to the air layer of the inner container through the ventilation means.

[2] The mouth portion is disposed in the vicinity of the periphery of the inner container, and one end of the liquid discharge pipe is made to reach a portion of the bottom surface of the inner container facing the mouth portion, and the portion facing the mouth portion is downward 2. The liquid chemical distribution device according to claim 1, wherein the pail cans are arranged so as to be inclined.

[3] The liquid medicine according to claim 2, further comprising a tilt base comprising: a main body that forms a slope; and a pair of fall prevention poles erected on the lower side of the slope; Dispensing device.

[4] The liquid medicine distribution device according to [2] or [3], wherein the pail can is disposed at an inclination of 12 degrees or more and 30 degrees or less with respect to a horizontal plane.

[5] A liquid chemical comprising an inner container made of a chemical-resistant synthetic resin and having a mouth that is formed in a cylindrical shape so as to allow injection of liquid chemical, and a metal outer container that constitutes the outer shell of the inner container A dispenser connected to the mouth of the pail can and a dispenser for dispensing the liquid chemical,

The dispenser has a cylindrical plug body that is fastened to the mouth so as to be sealed, and an opening that penetrates from the outside of the plug body toward the mouth, and vents compressed fluid into the inside of the inner container. Possible venting means and one end reaches the bottom of the inner container; The other end protrudes from the plug body, and includes a liquid discharge pipe that is attached to the plug body so as to be sealed.

A method of distributing liquid medicine in which the liquid medicine is discharged from the other end of the liquid discharge pipe by pressurizing the compressed fluid to the air layer of the inner container through the ventilation means.

[6] The mouth portion is disposed in the vicinity of the periphery of the inner container, and one end of the liquid discharge pipe is made to reach the bottom surface portion of the inner container facing the mouth portion, and the portion facing the mouth portion is downward 6. The method of dispensing liquid chemicals according to claim 5, wherein the pail cans are arranged so as to be inclined.

[7] The distribution of the liquid chemical according to claim 6, wherein the pail can is inclinedly arranged using a tilting table comprising a main body forming a slope and a pair of fall prevention poles erected on the lower side of the slope. Method.

[8] The pail can is disposed so as to be inclined at 12 degrees or more and 30 degrees or less with respect to a horizontal plane.

6. Liquid chemical dispensing method according to 6 or 7.

[9] A pail can for liquid medicine comprising a cylindrical inner container made of chemical-resistant synthetic resin, and a metal outer container constituting the outer shell of the inner container,

The inner container has a mouth that opens to allow injection of liquid chemicals,

The outer container has a top plate having a hole through which the mouth protrudes, a body that surrounds the outer periphery of the inner container, and a ground plate that contacts the bottom surface of the inner container,

The outer container is a liquid chemical pail that has rigidity so as to prevent deformation of the inner container against an internal pressure applied to the inner container.

10. The pail for liquid medicine according to claim 9, wherein the top plate and the main plate are fixed to the body by winding.

11. The pail for liquid medicine according to claim 9, wherein the top plate is fastened to the body by a band.

12. The liquid chemical pail can according to claim 9, wherein the top plate has a plurality of claws on a peripheral edge, and the top plate is fastened to the body by the plurality of claws.

13. The liquid chemical pail can according to claim 10, wherein the top plate is provided with a suspension.

[14] A pair of ears provided on the top plate side of the fuselage and rotatable with the pair of ears A pail for liquid medicine according to claim 11 or 12, further comprising a vine-like handle connected to the function.

15. The pail can for liquid medicine according to claim 9, wherein the body is formed in a right cylindrical shape.

16. The liquid can pail according to claim 9, wherein the body is formed in a conical trapezoidal shape in which an area on the top plate side is larger than an area on the ground plate side.

17. The liquid chemical sheet according to claim 9, wherein a damage protector is provided on either the periphery of the top plate, the periphery of the base plate, or both of the periphery of the top plate and the periphery of the base plate. Cans.

[18] A liquid medicine comprising a chemical-resistant synthetic resin inner container having a mouth portion that is open to allow injection of liquid medicine, and a metal outer container that constitutes the outer shell of the inner container. A dispenser connected to the mouth part of the pail can for

A cylindrical plug body that is sealed to the mouth so as to be sealed;

Ventilation means having an opening penetrating through the mouth from the outside of the plug body and capable of ventilating compressed fluid into the inner container;

One end reaches the bottom surface of the inner container, and the other end protrudes from the plug body, and a liquid discharge pipe that is sealably attached to the plug body.

A dispenser in which liquid chemical is also discharged from the other end of the liquid discharge pipe by pressurizing the compressed fluid to the air layer of the inner container through the ventilation means.

[19] The plug body is held inside the coupling ring, a coupling ring screwed onto the outer periphery of the mouth, a plug shell rotatably connected to the coupling ring, and the mouth of the mouth. A seal ring that is in close contact with the end face and seals the airflow at the boundary between the coupling ring and the plug shell,

19. The dispenser according to claim 18, wherein the plug shell is provided with the ventilation means and a synthetic resin first joint that detachably fixes the liquid discharge pipe.

20. The dispenser according to claim 18, wherein the ventilation means includes a second joint made of L-shaped synthetic resin connected to the opening of the plug body.