CN103052569A - Check Valve, Production Method Thereof, And Container Provided With Check Valve - Google Patents
Check Valve, Production Method Thereof, And Container Provided With Check Valve Download PDFInfo
- Publication number
- CN103052569A CN103052569A CN2011800359343A CN201180035934A CN103052569A CN 103052569 A CN103052569 A CN 103052569A CN 2011800359343 A CN2011800359343 A CN 2011800359343A CN 201180035934 A CN201180035934 A CN 201180035934A CN 103052569 A CN103052569 A CN 103052569A
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- China
- Prior art keywords
- check valve
- boiler check
- main part
- cap
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 claims description 25
- 239000013536 elastomeric material Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 235000013555 soy sauce Nutrition 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 11
- 238000001514 detection method Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229920002379 silicone rubber Polymers 0.000 description 9
- 239000004945 silicone rubber Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 208000034189 Sclerosis Diseases 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000008415 Lactuca sativa Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229940024545 aluminum hydroxide Drugs 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 235000012045 salad Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/38—Devices for discharging contents
- B65D25/40—Nozzles or spouts
- B65D25/42—Integral or attached nozzles or spouts
- B65D25/46—Hinged, foldable or pivoted nozzles or spouts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
- B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Bag Frames (AREA)
- Check Valves (AREA)
Abstract
Provided is a check valve capable of sufficiently suppressing the mixing of air in a container even if an impact is applied to the container, and capable of stably maintaining a superior discharging property of the content. A check valve (10) is integrally formed from a rubber material, and is provided with a cylindrical main body (1) having openings (1a, 1b) at opposite ends, a lid (3) arranged to close one opening (1a) of the main body (1), and a hinge (5) connecting the main body (1) and the lid (3), wherein the lid (3) comprises a projection (3a) on its side face (3b) so that the projection abuts the peripheral portion of the opening (1a) of the main body (1).
Description
Technical field
The container that the present invention relates to boiler check valve and manufacture method thereof and possess boiler check valve.
Background technology
In food, beverage, exist quality along with the process of time the situation of variation gradually, its reason can be enumerated the oxidation because causing with contacting of air.As the container of the oxidation that be used for to suppress inclusion, known have a so-called vacuum type container (for example, with reference to patent documentation 1).
The container that patent documentation 1 is put down in writing is installed at pouring spout and is prevented that air from entering the boiler check valve in the container.This boiler check valve is made of the structure that is provided with grooving at dome-type head, and this grooving is being opened when direction is exerted pressure to pouring out of inclusion, is closing when direction is exerted pressure to filling on the contrary.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 10-338239 communique
Yet, be manufactured on pouring spout built-in during the container of boiler check valve, according to the kind of inclusion, viscosity etc. and the size of the pouring spout of design containers, correspondingly determine therewith to be built in the size of the boiler check valve of pouring spout.For example, adopting the vacuum type container as the container of the soy sauce that uses at dining table and when its pouring spout arranges boiler check valve, the external diameter of boiler check valve is limited in about 10mm ~ 15mm.For with the so undersized boiler check valve of a large amount of productions of low cost, be fit to use the monolithic moldings of metal paattern.
The inventor utilizes the boiler check valve of monolithic molding trial-production variety of way and possesses the container of boiler check valve, air is had or not sneak in the container, the ejection of inclusion estimates.Consequently, find for boiler check valve shown in Figure 8 50, when applying to container when impacting, find that cap 53 can enter the inside of the main part 51 of tubular, cap 53 can not be fully as valve work (with reference to comparative example 1).In addition, hinge part shown in Figure 8 (hinge) the 55th, the part of binding main part 51 and cap 53.
Summary of the invention
The present invention proposes in order to address the above problem, though its purpose be to provide to container apply impact wait also can suppress fully air sneak in the container and can stably keep inclusion brilliance ejection boiler check valve and possess the container of this boiler check valve.In addition, the object of the present invention is to provide the method that reaches the boiler check valve of above-mentioned effect with mode manufacturing fully efficiently and cheaply.
Boiler check valve of the present invention is made of elastomeric material, makes by monolithic molding, and this boiler check valve possesses: the main part of tubular has opening at two ends; Cap is configured to stop up a side opening of main part; And hinge part, link main part and cap, the open side opening of hinge part when from the main part side direction outside cap being applied power, wherein, cap has the protrusion with the circumference butt of a side opening of main part in the side.
Above-mentioned boiler check valve is provided with protrusion in the side of cap, under the state of a side opening that stops up main part, and the circumference butt of a side opening of this protrusion and main part.By such protrusion is set, thereby even boiler check valve is applied impact, cap also is difficult to enter in the opening of main part, and cap can play consistently the effect of valve.
Yet in forming process, the protrusion that arranges in the side of above-mentioned cap is the part that becomes so-called undercut.Utilizing monolithic molding to manufacture in the situation of body, when having the part of undercut, can not this part of drawing when the demoulding and shaped object is suitably taken out from metal paattern, shaped object can be damaged sometimes.On the other hand, when increasing the number of packages of mold part for the part that does not produce undercut, there is this other problem of Expenses Cost.
Even boiler check valve of the present invention does not use special metal paattern can fully avoid the problem that causes because of undercut yet.That is, boiler check valve of the present invention is made of the elastomeric material of the hardness with regulation and extensibility, so even the protrusion of cap is the part of undercut, also can suitably take out from metal paattern.Therefore, the manufacturing cost of boiler check valve can be suppressed fully low.In addition, in the present invention, the hardness of silicone rubber means the value of measuring according to JIS K6249, and extensibility means the value of measuring according to JIS K7127.
In boiler check valve of the present invention, from simplifying the angle of manufacturing process, a side opening of preferred main part is made of the linearity part and the circular-arc part that form hinge part.In addition, said " circular arc " means a round part or an oval part here.
In boiler check valve of the present invention, if from preventing that more reliably cap from entering the angle in the through hole of main part, the external diameter R of the circular-arc part of cap
1The diameter R of the circular-arc part of ratio open
2Greatly, preferred R
1With R
2Difference be 0.06mm ~ 0.50mm.In addition, in this boiler check valve, more preferably the inside face angulation of the side of cap and main part is 15 ° ~ 25 °.In addition, if the hardness of elastomeric material be 30 the degree ~ 80 the degree and extensibility be 200% ~ 900%, then in manufacturing process, can not produce because of undercut cause bad, be preferred in the boiler check valve this point that obtains easily sufficient mechanical strength.
The above-mentioned boiler check valve that the container that the present invention relates to possesses the container body that is made of film and is installed on container body.This container possesses above-mentioned boiler check valve, even thereby apply to impact etc. to container and also can suppress fully air and sneak in the container.Thus, can suppress fully inclusion because of the oxidation variation.In addition, utilize the effect of above-mentioned boiler check valve, can stably keep the brilliance ejection property of inclusion, can enough use chronically so the user need not just to operate especially.
The container that preferably the present invention relates to also possesses the jet pipe that boiler check valve is installed.In this case, the leakage fluid dram of preferred jet pipe front end is the shape that temporarily narrows down halfway and then broaden at its front end.
And at least a portion of the main part of the boiler check valve of the container that preferably the present invention relates to forms the following degree that is thinned to: the residual quantity when becoming negative pressure in the inside of this boiler check valve between basis and the barometric pressure is out of shape, thereby reduces the volume of this boiler check valve.When making this container become upright state from the discharge state, get back to the liquid of container bottom so that in container top generation negative pressure.When such negative pressure was had an effect, according to measuring accordingly with atmospheric residual quantity, the part of the main part of boiler check valve was out of shape in the mode of depression.So, being accompanied by the distortion of boiler check valve, the space from the boiler check valve in the jet pipe to the leakage fluid dram front end becomes negative pressure, so remain in the liquid of leakage fluid dram front end by the amount suck-back (getting back to vessel side) of the distortion volume of this boiler check valve.Behind suck-back, even cap is installed, liquid also can not be attached to the periphery of leakage fluid dram, so can not produce dropping liquid.
In said vesse, the main part of preferred boiler check valve is the stairstepping that is made of minor diameter and major diameter section, is formed with a side opening in minor diameter.
And then in said vesse, preferred minor diameter forms thinlyyer than major diameter section.
The invention provides the manufacture method of above-mentioned boiler check valve.That is, the manufacture method of the boiler check valve that the present invention relates to is the manufacture method of following boiler check valve, and this boiler check valve possesses: the main part of tubular has opening at two ends; Cap is configured to stop up a side opening of main part; And hinge part, link main part and cap, the open side opening of hinge part when from the main part side direction outside cap being applied power, wherein, cap has the protrusion with the circumference butt of a side opening of main part in the side, the manufacture method of boiler check valve is characterised in that, comprising: forming process, in the chamber with the recess that is used to form protrusion, obtaining by hardness is that 30 degree ~ 80 degree and extensibility are the shaped object that 200% ~ 900% elastomeric material consists of; Stripping process takes out shaped object from the chamber; And the cut-out operation, stay the partly incision main part and the cap that become hinge part.
According to above-mentioned manufacture method, the hardness of elastomeric material is that 30 degree ~ 80 degree and extensibility are 200% ~ 900%, thereby the part of protrusion that can prevent from fully becoming cap can successfully be taken out shaped object from metal paattern by the recess of drawing to the chamber.Therefore, do not need to use special metal paattern, just manufacturing cost can be suppressed fully low.
The invention effect
The boiler check valve that the application of the invention relates to even applying impact to wait to container also can suppress fully air and sneak in the container, and can stably be kept the brilliance ejection property of inclusion.In addition, according to the manufacture method of boiler check valve of the present invention, can make in mode fully efficiently and cheaply the boiler check valve of the above-mentioned effect of performance.
Description of drawings
Fig. 1 is the block diagram that the preferred implementation of the boiler check valve that the present invention relates to is shown.
(a) of Fig. 2 and (b) be birds-eye view and the section drawing of boiler check valve shown in Figure 1.
Fig. 3 is the section drawing that the state that the cap of boiler check valve shown in Figure 1 opens is shown.
Fig. 4 amplifies near the cap of boiler check valve shown in Figure 1 and the partial section that illustrates.
Fig. 5 is the block diagram that flexibility (flexible) vacuum vessel that possesses boiler check valve shown in Figure 1 is shown.
(a) of Fig. 6 and (b) block diagram and the section drawing of the exterior body of boiler check valve that to be built-in shown in Figure 1.
Fig. 7 is the partial section that other embodiments of the boiler check valve that the present invention relates to are shown.
Fig. 8 is the section drawing that the boiler check valve of comparative example 1 is shown.
Fig. 9 is the section drawing that the boiler check valve of other embodiments of the present invention is shown and the exterior body (jet pipe (spout)) of this boiler check valve has been installed.
Figure 10 is the section drawing of boiler check valve.
Figure 11 is the section drawing of the boiler check valve under the state of part distortion of main body.
Figure 12 amplifies the leakage fluid dram of exterior body (jet pipe) and the section drawing that illustrates.
The specific embodiment
Below, in the time of with reference to accompanying drawing preferred implementation of the present invention is elaborated.In addition, in the following description, to identical or suitable part mark same numeral, the repetitive description thereof will be omitted.
＜boiler check valve 〉
With reference to Fig. 1 ~ Fig. 4, and to describe as example in the situation of the built-in boiler check valve of the container of the home-use soy sauce that is used for packing into.The boiler check valve 10 that present embodiment relates to is made of the elastic body of elastomeric material etc., for example utilizes monolithic molding and makes.Such as shown in Figure 1 and Figure 2, boiler check valve 10 possesses: the main part 1 that has the tubular of opening 1a, 1b at two ends; The cap 3 that disposes in the mode of the opening 1a of the front of stopping up main part 1; And the hinge part 5 that links main part 1 and cap 3.As shown in Figure 3, hinge part 5 has the function of the hinge of cap 3, and it has pliability, opening 1a that can opening main part section 1 when applying power F with respect to cap 3 from the main part 1 side direction outside.
As shown in Figure 1, the part of the outside face of the bottom of main part 1 is plane 1d, is provided with projection 1e at plane 1d.This projection 1e work with mark the location when boiler check valve 10 is fixed to exterior body 32 (with reference to Fig. 6).
As shown in Figure 1, the opening 1a of the front of main part 1 is made of linearity part L and circular-arc part R.The linearity part L of opening 1a utilize in the through hole 1c of main part 1, be arranged at opening 1a near protrusion 1f and form, consist of hinge part 5 by the linearity partial continuous that makes this linearity part L and cap 3.Be circular-arc by the part of establishing except the part that consists of hinge part 5, thereby existence can be simplified the such advantage of manufacturing process.That is, behind the monolithic molding, utilize just can to keep hinge part 5 and cut (Qie り From The from main part 1 the such short-cut method of the internal pressurization of main part 1) cap 3.
The height of protrusion 3a (length till from the side 3b of cap 3 to the front end of protrusion 3a) is preferably 0.4mm ~ 0.6mm, more preferably 0.45mm ~ 0.55mm.The height of protrusion 3a is during less than 0.35mm, prevents that the effect that cap 3 enters through hole 1c from becoming insufficient easily, on the other hand, during greater than 1.0mm, in manufacturing process, produce easily by undercut (under cut) cause bad.
From preventing reliably that further cap 3 from entering the angle in the through hole 1c of main part 1, the external diameter R of the circular-arc part of preferred cap 3
1The diameter R of the circular-arc part R of ratio open 1a
2Greatly.R
1With R
2Difference be preferably 0.06mm ~ 0.50mm, 0.08mm ~ 0.25mm more preferably.By larger than 0.06mm, thereby when because of whereabouts etc. container being applied impact, cap is difficult to enter in the through hole of main part, does not pour out so can not hinder.By less than 0.50mm, thereby the puppet that is difficult to occur cap and main part is adjacent to, and can not hinder and pour out.In addition, in the unfixed situation of the external diameter of cap, for example, like that, when being taper in the side of cap 3, establishing maximum external diameter is R1 shown in Fig. 2 (b).
In order to form hinge part 5 and the efficiently incision of subject of implementation section 1 and cap 3 in manufacturing process, the side 3b of preferred cap 3 is for to become the taper that external diameter diminishes from upper direction main part 1 side.The side 3b of preferred cap 3 and the inside face angulation (angle [alpha] shown in Figure 4) of main part 1 are 15 ° ~ 25 °.When larger than 15 °, cap is difficult to enter in the through hole of main part, does not pour out so can not hinder.By than 25 ° little, more manifest easily return valve function, be difficult to cause air and sneak into.
In addition, preferably give concavo-convex at the main part 1 of boiler check valve 10 and one or both of the contact part between the cap 3.Give and concavo-convexly can reduce surface tension, thus, can suppress main part 1 and attach because of the surface tension that includes liquid with cap 3, and can easily open valve.As giving concavo-convex method, can enumerate to elastomeric material and add filler (filler), more specifically, be used for the main part 1 of boiler check valve 10 and one or both of cap 3 with rubbing into the elastomeric material that extending agent is arranged.As extending agent, can enumerate and burn till fine silica powder end, titanium dioxide powder, alumina powder, crushed quartz, pulverizing christobalite, diatomite powder, aluminosilicate powder, magnesium oxide powder, aluminium-hydroxide powder, croci, Zinc oxide powder and ground calcium carbonate powder.Extending agent is preferably the containing ratio of elastomeric material and accounts for weight 1% ~ 50%, more preferably accounts for weight 5% ~ 40%.The mean grain size of extending agent is preferably 0.1 μ m ~ 50 μ m, more preferably 5 μ m ~ 40 μ m.
Hardness as the elastomeric material that consists of boiler check valve 10 is 30 degree ~ 80 degree, is preferably 40 degree ~ 70 degree, more preferably 50 degree ~ 60 degree.The extensibility of elastomeric material is 200% ~ 900%, is preferably 300% ~ 800%, more preferably 400% ~ 700%.When hardness less than 30 degree of elastomeric material or extensibility surpassed 900%, the mechanical strength of boiler check valve 10 was insufficient, on the other hand, when the hardness of elastomeric material surpasses 80 degree or extensibility less than 200%, in manufacturing process, produce because of undercut cause bad.
The manufacture method of＜boiler check valve 〉
The manufacture method of boiler check valve 10 comprises (a) forming process, (b) stripping process and (c) cut-out operation.
(a) forming process
This operation is used in the chamber with the recess that is used to form protrusion 3a, and obtaining by hardness is that 30 degree ~ 80 degree and extensibility are the shaped object that 200% ~ 900% elastomeric material consists of.Set treatment conditions, when making its sclerosis so that in the chamber raw material applied heat, pressure, the hardness of shaped object and extensibility are in the above-mentioned scope.
(b) stripping process
This operation is used for from chamber taking-up shaped object.For example, along the length direction of shaped object, by oppositely pulling open mutually former and formpiston, take out shaped object from the chamber.In the present embodiment, the part that becomes the protrusion 3a of boiler check valve 10 becomes undercut, but by making the elastomeric material that is formed into body have hardness and the extensibility of above-mentioned scope, thus can suppress fully that part because of undercut causes bad.
(c) cut off operation
This operation is used for reservation to be become the part of hinge part 5 and cuts main part 1 and cap 3.The opening 1a of main part 1 is made of linearity part L and circular-arc part R, so during to the inside to the shaped object air supply and to internal pressurization, stress concentrates on circular-arc part R, thereby is merely able to cut off circular-arc part R.
＜possess the flexible vacuum vessel of boiler check valve 〉
Then, with reference to Fig. 5 and Fig. 6, to boiler check valve 10 is built in exterior body 32, can be independently and carry and be easy to flexible vacuum vessel 30 and describe.Container 30 possesses: by the container body 31 that has flexual hyaline membrane and consist of; Be obliquely installed in the exterior body 32 of the shoulder of container body 31; And the built-in boiler check valve 10 of this exterior body 32.Boiler check valve 10 is built-in as follows: cap 3 is positioned at the front of exterior body 32, and at thirty years of age time-out of the downward state in the bottom that makes container 30 (state shown in Figure 5), hinge part 5 along continuous straight runs extend, protrusion 3a be positioned at hinge part 5 the below towards.
The film that forms container body 31 can be individual layer, but preferably is made of multilayer.In the situation that film is made of multilayer, for example, by forming outer field base material layer when bag-shaped, form the sealant layer of internal layer and the adhesive layer of adhesive matrix material layer and sealant layer consists of being processed into.
When the container 30 of accommodating soy sauce is toppled over, the cap 3 of boiler check valve 10 is applied from the inboard toward the outer side power, cap 3 is opened laterally and is sprayed soy sauce.Container 30 return original towards the time, become negative pressure in the container 30, cap 3 is applied from the outside towards the power of inboard.Thus, the opening 1a of boiler check valve 10 is blocked, prevents that air from entering in the container 30.
More than, preferred implementation of the present invention is had been described in detail, but the present invention is not limited to above-mentioned embodiment.For example, in the above-described embodiment, illustration at the side of cap 3 3b the situation of local protrusion 3a is set, but also can be as shown in Figure 7, the integral body of the side 13b of cap 13 is taper, protrusion 13a is formed at its top.In this case, protrusion 13a becomes the part of undercut, but same with above-mentioned embodiment, the elastomeric material that has hardness and the extensibility of above-mentioned scope by use, thus it is bad to prevent fully that part because of undercut from causing.
In addition, the shape of the main part of boiler check valve also only is not limited to cylinder, and cross sectional shape also can be ellipse, rectangle or polygonal tubular.And the flowing path section of through hole 1c, the shape of cap are not limited in sub-circular, also can be ellipse, rectangle or polygon.
In addition, in the above-described embodiment, although soy sauce is illustrated with the employed boiler check valve of container, but the purposes of boiler check valve of the present invention and container also closely is not limited to soy sauce usefulness, also can be to the liquid of vessel filling belly wash water, alcohol drink, salad oil or the aqueous washer solvent etc. that possess boiler check valve of the present invention.
＜suck-back (sack back) mechanism 〉
Below, as other embodiments of the present invention, illustrate that the container 30(that possesses suck-back mechanism is with reference to Fig. 9 ~ Figure 12).
In the container 30 of present embodiment, exterior body (below, being also referred to as jet pipe) the leakage fluid dram 32d that forms of 32 front end is the shape of cutting brilliance aspect the liquid at liquid such as soy sauce, for example is the shape (with reference to Fig. 9) that temporarily narrows down halfway and then its front end broadens.But, make the soy sauce ejection of requirement at tilt container 30, and when making container 30 return upright state, have following situation: at such leakage fluid dram 32d, the residual part that soy sauce is arranged of soy sauce, and become dropping liquid thereafter, dirty reason.Consider such point, in the present embodiment, this container 30 is designed with suck-back mechanism.
That is to say, in this container 30, at least a portion of the main part 1 of boiler check valve 10 forms the following degree that is thinned to: become in the inside of this boiler check valve 10 in the situation of negative pressure, according to being out of shape with atmospheric residual quantity, thereby reduce the degree of the volume (with reference to Figure 10 etc.) of this boiler check valve 10.In this case, though forming thinner part is not particularly limited, but in the present embodiment, use following boiler check valve 10(with reference to Figure 11 etc.): main part 1 is the stairstepping that is made of minor diameter 11 and major diameter section 12, make minor diameter 11 have pliability, utilize to form than major diameter section's 12 thin perisporiums.
The effect of the suck-back mechanism in such container 30 as described below.At first, when making container 30 get back to upright (uprightly) state from the discharge state that tilts, the discharge of soy sauce stops.In addition, when getting back to upright state, utilize elastomeric elasticity naturally to seal the cap 3 of boiler check valve 10, the cap 3 of the boiler check valve 10 in jet pipe 32 is to the space of leakage fluid dram 32d (Fig. 9, A illustrates with label) and become the state that is interdicted than the space (among Fig. 9, B illustrates with label) of the private side of the cap 3 more close containers 30 of boiler check valve 10.At this moment, just under the residual state that soy sauce arranged of the front end of leakage fluid dram 32d (with reference to Figure 12), when the lid installation portion 32a of jet pipe 32 mounting cover (omitting diagram), residual soy sauce is attached to the periphery of leakage fluid dram 32d, becomes the reason of dropping liquid.
About this point, in the present embodiment, when making container 30 become upright state from the discharge state, get back to the soy sauce of the bottom of container 30, produce negative pressure (among Figure 11, P illustrates with label) on the top of container 30.When negative pressure was had an effect like this, by measuring accordingly with atmospheric residual quantity, the part of the main part 1 of boiler check valve 10 (in the situation of present embodiment, the perisporium of minor diameter 11) caved in and is out of shape (with reference to Figure 11).So, be accompanied by the part distortion of boiler check valve 10, the space of space A(in the jet pipe 32 from the cap 3 of boiler check valve 10 to leakage fluid dram 32d) become negative pressure, thus at the residual soy sauce of the front end of leakage fluid dram 32d by the amount suck-back (with reference to Figure 12) by the distortion volume of this boiler check valve 10.Behind suck-back, even mounting cover, soy sauce also can not be attached to the periphery of leakage fluid dram 32d, can not produce dropping liquid.In addition, although suppose that from making container 30 under the discharge state return upright state needed time till the user installation lid be 1 ~ 2 second the soonest, this time is the grace time that makes the soy sauce suck-back that residues in leakage fluid dram 32d in the container 30 that present embodiment relates to.
Below, be described more specifically the present invention based on embodiment and comparative example, but the present invention is not limited to following embodiment.
(making of the shaped object of embodiment 1 ~ 3)
In order to make the boiler check valve of the size that embodiment 1 ~ 3 with structure shown in Figure 1, table 1 illustrates respectively, be made into as follows body.That is, in the chamber, put into the silicone rubber raw material after, in the chamber that consists of with two metal paattern, by continuing to make the raw material sclerosis obtain shaped object in six minutes with 175 ℃.After taking out shaped object, utilize the microscopic examination protrusion after, confirm without damaged.Consist of the silicone rubber of the shaped object of embodiment 1 ~ 3, all hardness is that 55 degree, extensibility are 380%.
(making of embodiment 4,5 shaped object)
In order to make the boiler check valve of the size that embodiment 4,5 with structure shown in Figure 1, table 2 illustrates respectively, be made into as follows body.That is, in the chamber, put into the silicone rubber raw material after, in the chamber that consists of with nine metal paattern, by continuing to make the raw material sclerosis obtain shaped object in 135 seconds with 170 ℃.After taking out shaped object, utilize the microscopic examination protrusion after, confirm without damaged.Consist of the silicone rubber of embodiment 4,5 shaped object, all hardness are that 60 degree, extensibility are 350%.
(making of the shaped object of comparative example 1)
In order to make the boiler check valve of the size shown in the comparative example 1 with structure shown in Figure 8, table 2, in the chamber that consists of with a metal paattern, flow into the silicone rubber raw material, similarly make the raw material sclerosis with embodiment 1 ~ 3.Thus, be produced on cap without the shaped object of protrusion.Consist of the silicone rubber of the shaped object of comparative example 1, all hardness is that 55 degree, extensibility are 380%.
[making of the boiler check valve of embodiment 1 ~ 5 and comparative example 1]
To the inboard pressurization of the shaped object that obtains, will become part beyond the linearity part of hinge part and be cut to circular-arcly, make the boiler check valve of embodiment 1 ~ 5 and comparative example 1.In any boiler check valve of embodiment 1 ~ 5 and comparative example 1, the inside face angulation α of the side of cap and main part is 20 °.
[making of flexible vacuum vessel]
The boiler check valve of embodiment 1 ~ 5 and comparative example 1 is installed, by making the deposited container of making structure shown in Figure 7 of exterior body and container body in exterior body.In addition, as the flexible membrane that forms container body, use the stacked film that is consisted of by PET/ON/L-LDPE.
[evaluation experimental]
Fill respectively soy sauce 500ml and make detection bodies to the container that embodiment 1 ~ 5 and comparative example 1 relate to, carry out following whereabouts experiment.Make detection bodies naturally lower backward from the height of drop shown in the table 1,2, estimating air has in the undirected container ejection of sneaking into (air (Air) is sneaked into) and soy sauce.In addition, utilize visual judgement to have or not air to sneak into, the ejection of soy sauce is good or bad in addition, whether pours out glibly soy sauce by with 45 ° of left and right sides of container lean the time to judge.At table 1,2 result is shown.
[table 1]
[table 2]
Then, prepare the container that a plurality of above-described embodiments 1 relate to, fill respectively soy sauce 500ml and make detection bodies to them.By detection bodies is carried out following experiment, estimate in more detail the performance of boiler check valve.
(leaving standstill experiment)
Certainly accommodate at normal temperatures the container of soy sauce, after through 12,24,36,48 and 120 hours, the affirmation air has or not sneaks in the container and the ejection of soy sauce.To five detection bodies, under each condition, test.In result table 3 illustrate.
[table 3]
After through 12,24,36,48 hours, in whole detection bodies, all there be not sneaking into of air.In addition, ejection property is good.After 120 hours (5 days), although do not observe sneaking into of air, in the part (sealing) that the periphery of the opening of cap and main part joins, soy sauce solidifies a little, even topple over container, soy sauce is naturally ejection also.
(experiment I falls)
Under following (i), (ii) condition, the container of having accommodated soy sauce is fallen.Change the height that container is fallen, the air that falls behind under confirming has or not sneaks in the container and the ejection of soy sauce.Have or not entrained air and soy sauce ejection metewand as described above.Five detection bodies are tested under condition separately.
(i) at the lid installation portion of exterior body mounting cover not, with the downward state in the bottom of container body container is fallen once naturally.In result table 4 illustrate.
(ii) at the lid installation portion mounting cover of exterior body, under the downward state in the bottom that makes container body, container is fallen once naturally, under the prone state of the side that makes container body, container is fallen once naturally thereafter.In result table 5 illustrate.
[table 4]
[table 5]
Irrelevant with having or not of the installation of cap, till height of drop 140cm, in whole detection bodies, all there be not sneaking into of air.In addition, ejection property is good.On the other hand, at height of drop 160cm place, the cap of boiler check valve enters, and produces sneaking into of air.And, because the cap of boiler check valve enters, even the also naturally ejection of tilt container soy sauce.In addition, in each experiment till height of drop 160cm, do not observe the leakage of inclusion.
(experiment II falls)
For at the lid installation portion of the exterior body container under the state of mounting cover not, height of drop is fixed as 120cm, setting number of times is five times or ten times, under the downward state in the bottom that makes container body container is fallen naturally.In result table 6 illustrate.To two detection bodies, under condition separately, test.
[table 6]
Continuous five times whereabouts does not all have sneaking into of air in whole detection bodies.In addition, ejection property is good.On the other hand, in continuous ten times whereabouts, the cap of boiler check valve enters and produces sneaking into of air.And, because the cap of boiler check valve enters, even the also naturally ejection of tilt container soy sauce.
Nomenclature
1 main part 1a, 1b opening
3,13 cap 3a, 13a protrusion
3b, 13b side 5 hinge parts
10 boiler check valve, 11 minor diameter
12 major diameter sections, 30 flexible vacuum vessels (container)
31 container bodies, 32 exterior bodies (jet pipe)
32d leakage fluid dram F power
L linearity part P negative pressure
The circular-arc part of R
Claims (12)
1. a boiler check valve is made of elastomeric material, makes by monolithic molding, and described boiler check valve is characterised in that to possess:
The main part of tubular has opening at two ends;
Cap is configured to stop up a side opening of described main part; And
Hinge part links described main part and described cap, the open described side opening of described hinge part when from the described main part side direction outside described cap being applied power,
Wherein, described cap has the protrusion with the circumference butt of the described side opening of described main part in the side.
2. boiler check valve according to claim 1 is characterized in that,
A described side opening is made of the linearity part and the circular-arc part that form described hinge part.
3. boiler check valve according to claim 2 is characterized in that,
The external diameter R of the circular-arc part of described cap
1The diameter R of the circular-arc part of ratio open
2Greatly, R
1With R
2Difference be 0.06mm ~ 0.50mm.
4. boiler check valve according to claim 3 is characterized in that,
The inside face angulation of the side of described cap and main part is 15 ° ~ 25 °.
5. boiler check valve according to claim 4 is characterized in that,
The hardness of described elastomeric material is that 30 degree ~ 80 degree and extensibility are 200% ~ 900%.
6. container is characterized in that possessing:
The container body that is consisted of by film; And
Each described boiler check valve in the claim 1 to 5 that described container body is installed.
7. container according to claim 6 is characterized in that,
Described container also possesses jet pipe, and described jet pipe is equipped with described boiler check valve.
8. container according to claim 7 is characterized in that,
The leakage fluid dram of the front end of described jet pipe is to narrow down and shape that front end broadens midway temporarily.
9. container according to claim 8 is characterized in that,
At least a portion of the main part of described boiler check valve is thinned to following degree: become in the inside of this boiler check valve in the situation of negative pressure according to and barometric pressure between the residual quantity distortion reduce the volume of this boiler check valve.
10. container according to claim 9 is characterized in that,
The main part of described boiler check valve is the stairstepping that is made of minor diameter and major diameter section, is formed with a described side opening in described minor diameter.
11. container according to claim 10 is characterized in that,
Described minor diameter forms thinlyyer than described major diameter section.
12. the manufacture method of a boiler check valve, described boiler check valve possesses: the main part of tubular has opening at two ends; Cap is configured to stop up a side opening of described main part; And hinge part, link described main part and described cap, the open described side opening of described hinge part when from the described main part side direction outside described cap being applied power, wherein, described cap has the protrusion with the circumference butt of the described side opening of described main part in the side, the manufacture method of described boiler check valve is characterised in that, comprising:
Forming process, in the chamber with the recess that is used to form described protrusion, obtaining by hardness is that 30 degree ~ 80 degree and extensibility are the shaped object that 200% ~ 900% elastomeric material consists of;
Stripping process takes out described shaped object from described chamber; And
Cut off operation, staying becomes the described main part of the partly incision of described hinge part and described cap.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-165562 | 2010-07-23 | ||
| JP2010165562 | 2010-07-23 | ||
| PCT/JP2011/066678 WO2012011558A1 (en) | 2010-07-23 | 2011-07-22 | Check valve, production method thereof, and container provided with check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103052569A true CN103052569A (en) | 2013-04-17 |
Family
ID=45496976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800359343A Pending CN103052569A (en) | 2010-07-23 | 2011-07-22 | Check Valve, Production Method Thereof, And Container Provided With Check Valve |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130119092A1 (en) |
| EP (1) | EP2597051A4 (en) |
| JP (2) | JPWO2012011558A1 (en) |
| CN (1) | CN103052569A (en) |
| WO (1) | WO2012011558A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20130119092A1 (en) | 2013-05-16 |
| EP2597051A1 (en) | 2013-05-29 |
| JP5053463B2 (en) | 2012-10-17 |
| WO2012011558A1 (en) | 2012-01-26 |
| JPWO2012011558A1 (en) | 2013-09-09 |
| EP2597051A4 (en) | 2015-04-22 |
| JP2012106800A (en) | 2012-06-07 |
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Application publication date: 20130417 |