Classifications

• • 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
  • B65D47/2031—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 the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
• • 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
  • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
  • B65D35/44—Closures
  • B65D35/46—Closures with valves

Definitions

• the present invention relates to a check valve and a liquid storage container provided with the check valve.
• a slit is provided in an elastic body provided in the mouth of a container, and the slit is pushed open by a liquid or the like extruded by an internal pressure generated by an external pressure applied to the container, and the slit is opened to discharge the liquid and the like. After the external pressure applied to the container body is released after this, the elastic body forms a check valve or plug structure that closes the slit by its own restoring force.
• a plug having a shell-shaped appearance and a dome-shaped cavity inside is formed of an elastic or flexible material, and has at least one slit at its tip.
• a thin upper wall plate concaved in an arc shape is formed of an elastic material, and a slit is provided at a central portion thereof.
• the elastic portion containing the slit which is a key point of the valve mechanism, is exposed, the elastic portion may be inadvertently touched.
• This elastic portion needs a corresponding elastic force to prevent leakage from the slit.
• the force that does not apply excessive elastic force, and the mechanism that does not use anything other than the elastic force of this elastic body to close the slit, originally to keep the slit in close contact Has elasticity Insufficient power alone. Therefore, as shown in Fig. 13, if any external force is applied to the elastic body, the elastic body is easily deformed and the close contact of the slit is released, so that the liquid in the container leaks or conversely, the air inside the container Inhaled.
• the tube containers are made of laminate material, and the elasticity of the tube itself makes the container itself strong. That is, the container body becomes negative pressure due to the restoring force of the container body, and the content pushed out to the nozzle opening may be drawn back into the container again.
• the elastic body acts in a direction in which the cylindrical portion is crushed and the slit is opened.
• containers equipped with measuring cups are not suitable for accurate weighing and are poorly poured, since their contents are poured out of the container body according to the scale provided on the measuring cup. Also, since the spout is always open, excess contents flowed out of the container body when dispensing the contents measured with the measuring cup. Furthermore, if the cap is loosely tightened, the contents will leak if the container falls down.
• the return spring of the pump is made of metal. Although it is technically possible to use a single material, it is not realistic due to cost issues. With the increasing awareness of environmental preservation in society, the problem of waste disposal cannot be ignored.
• the present invention is to solve the above-mentioned problems of the prior art and to provide a check valve which functions reliably and a container provided with the check valve.
• the container provided can be made of a single material and, despite its simple structure, can prevent inadvertent discharge with a check valve. It is another object of the present invention to provide a liquid container capable of accurate measurement without an amount of liquid larger than the measured liquid flowing out of the container body. Disclosure of the invention
• the check valve of the present invention has the following features.
• a valve provided at a discharge port of a fluid container, the valve including a tubular body having a penetrating passage, and a valve body made of an insulative material having an opening in the vicinity of a distal end thereof. And an outer skin having an opening near the distal end so as to cover the valve body.
• a valve provided at the discharge port of the fluid container, wherein a cylindrical body having a penetrating passage and a valve body having an opening in the vicinity of the distal end are provided so as to cover the cylindrical body.
• a cover having an opening is provided so as to cover the valve body, and a protective cap exposing only the opening of the cover is provided.
• a space is provided between the tip of the tubular body and the inner surface of the outer skin, and the valve body is provided so as to isolate this space from front to back.
• the valve body is made of an elastic body, and the opening provided in the vicinity of the top is normally closed by the elastic force of the valve body itself and is a slit that is released by the internal pressure of the container and is opened. .
• the slit is a combination of multiple cuts.
• the cylindrical body and the valve body are formed by constant molding.
• the upper end of the tubular body and the inner surface of the valve body are made compatible with each other, and the passage of the tubular body is branched in the tubular body, and an opening is formed at the top of the position avoiding the opening of the valve body.
• the opening of the valve body is closed, and the opening of the cylindrical body is closed by close contact with the upper end surface of the cylindrical body, and the valve body expands in the direction of the discharge port due to an increase in the internal pressure of the container. Occasionally, the close contact between the two is released, and the opening of the valve body is opened so that the contents can be discharged.
• the upper end of the cylindrical body and the inner surface of the valve body are formed in a mutually compatible shape, and a projection is provided inside the top of the valve body to fit and close the passage opening of the cylindrical body.
• An opening is provided around the periphery of the cylinder. The passage is opened and the contents can be discharged when the valve body projection is pushed out toward the discharge port due to the rise in the internal pressure of the container.
• the upper end of the tubular body and the inner surface of the valve body are made compatible with each other, and a projection protruding in the direction of the discharge port is provided at the top of the tubular body, and a passage opening is provided around the protrusion, and the top of the valve body Has an opening that fits the projection of the cylindrical body and closes the passage, and the projection of the cylindrical body normally closes the opening of the valve body, but the valve body moves in the direction of the discharge port due to the rise in the internal pressure of the container.
• the passage is opened when inflated so that the contents can be discharged.
• the upper end of the tubular body and the inner surface of the valve body are made to fit each other, and the inside of the top of the valve body is provided with a projection that fits into and closes the passage opening of the tubular body.
• An opening is provided around the projection, and the valve body is provided so as to be movable in the discharge direction between the tip of the cylindrical body and the inside of the outer body.
• a valve body is provided between the valve body and the outer body.
• a spring is provided that normally urges the cylinder in the direction of pressing it.In the normal state, the projection of the valve blocks the opening of the cylinder, but the valve projection protrudes against the above spring due to the rise in the internal pressure of the container.
• the passage is opened when moving in the exit direction so that the contents can be discharged.
• the upper end of the cylindrical body and the inner surface of the valve body are made compatible with each other, and a projection protruding in the direction of the discharge port is provided at the top of the cylindrical body, and a passage opening is provided around the protrusion.
• the top is provided with an opening adapted to the projection of the tubular body to close the passage, and the valve body is provided so as to be movable in the discharge direction between the tip of the tubular body and the inner side of the outer cover.
• a spring is provided between the outer shells to bias the valve body against the cylindrical body in the normal state.In the normal state, the projection of the cylindrical body closes the opening of the valve body. When the body moves toward the discharge port against the spring, the passage is opened and the contents can be discharged.
• a liquid container provided with a check valve is provided with a check valve having the above characteristics, wherein the tube and the container body are formed of a flexible material, a bottle, a gusset bag or a stand bouch. It is characterized by the following.
• liquid container of the present invention has the following features.
• a liquid container provided with a discharge port for discharging the contents which is normally closed and has a check valve with an opening that opens when the internal pressure of the container rises, is provided at the discharge port and the discharge destination is Dispensing by dispensing with a cap equipped with a measuring container and an intake port with a check valve that is normally closed and has an opening that opens due to negative pressure inside the container. At the time-when distributing the contents discharged into the measuring container, the contents shall not flow out of the container main body more than the amount measured from the container main body.
• a valve body made of an elastic material is provided so as to cover the cylindrical body, and a check valve provided with an outer skin having an opening near the distal end so as to cover the valve body is provided at the discharge port.
• a cap is provided with a measuring container at the discharge destination, and a suction port with a check valve made of an elastic material, which is normally closed near the tip and has an opening that is opened by negative pressure inside the container.
• the opening of the valve is a slit.
• FIG. 1 is an external perspective view showing a first embodiment of the present invention.
• 1 is a check valve main body
• 2 is a discharge port
• 3 is a container main body.
• FIG. 2 is a longitudinal sectional view of a main part around the check valve body.
• the check valve 2 is composed of a tubular body 4, a valve body 5, an outer shell 6 as shown in FIGS. 3 (a), (b) and (c), respectively, and a protective cap 7 as shown in FIG.
• the cylindrical body 4 has a tapered shape at the container body side end 8 in order to reduce the fluid resistance. Since the cylindrical body 4 also has a function of maintaining the shape of the valve body 5, a material having a hardness that is not easily deformed is preferable.
• the valve element 5 is formed in a hollow shell shape, and a slit 9 is provided at the tip thereof.
• the valve element 5 is formed of an elastic body such as rubber, and the slit 9 is tightly attached by the elastic force (restoring force) of the valve element 5 itself in a normal state.
• the slit 9 is provided by pressing the container body 3 by hand or the like. When the container is deformed by the external pressure, the close contact of the slit 9 is easily released by the internal pressure of the container, thereby forming an opening.
• an outer cover 6 is further provided so as to cover the valve 5.
• the outer cover 6 also has a function of restricting the expansion deformation of the valve 5.
• the shape is almost the same as that of the valve element 5, but a discharge port 2 which is always open is provided at the tip. It is preferable that the material has some elasticity.
• the discharge port 2 is adapted to fit the protrusion 12 provided on the cap 11 shown in FIG. 2, and the contents (liquid, semi-fluid) remaining in the discharge port passage 20 due to their close contact. Etc.) from oxidizing on contact with air. Stopped.
• the outer shell 6 has a flange portion 13 on the outer surface.
• the outer shell 6 is fitted to the tip of the cylindrical portion 14 of the container body 3 as shown in FIG.
• the protection cap 7 is adapted to be screwed into a screw provided outside the cylindrical portion 14 of the container body 3.
• a space A is provided between the distal end 15 of the cylindrical body 4 and the inner surface 16 of the valve body 5, and a space between the valve body distal end 17 and the inner surface 18 of the outer skin.
• B is provided.
• the space A is a pool of contents that has passed through the passage 19 of the cylindrical body 4 from the inside of the container body, and the larger this volume is, the more the inner surface 16 of the valve body 5 is pushed by the dispersed pressure.
• Space B determines the amount of movement of valve element 5.
• the larger the depth of this space B (the height in the vertical direction in the figure) C the larger the valve element 5 expands, the larger the slit 9 opens, and the larger the opening.
• the spaces A and B are appropriately changed according to the viscosity of the contents together with the diameter D of the passage of the cylindrical body 4 and the diameter E of the discharge port shown in FIG. Of the external pressure applied to the container body).
• the check valve 2 of the present invention configured as described above operates as shown in FIG.
• the inside of the container is The pressure rises, and the contents are pushed out toward the discharge port 2 as shown by the arrow in the figure.
• the extruded contents enter the space A through the passage 19 of the cylindrical body 4.
• the internal pressure of the space A rises and pushes the inner surface 16 at the tip of the valve body 5 outward, so that the valve body tip 17 expands while reducing the space B until it contacts the inner surface 18 of the outer body 6.
• the slit 9 provided at the tip of the valve body 5 opens, and the contents flow out and are discharged from the discharge port 2 at the tip of the envelope 6.
• the slit 9 may be pulled into the container body 3 and the slit 9 may be opened, but if it is balanced, the slit 9 returns to the normal state and the slit 9 remains in close contact.
• the cap 11 itself can be of any type, from the fitting type as shown in Fig. 7, to the hinged type (not shown) and the screw-down type. It is necessary to have a structure to block the exit 2.
• FIGS. 8 (a) to 8 (c) show a slit 9 provided at the tip of the valve body 5, respectively.
• (A) is a front view when one slit 9 is provided,
• (b) is a plan view thereof, and
• (c) is a longitudinal sectional view in a state where the slit is opened.
• FIG. 9 are plan views of slits 9 having different forms.
• the opening provided in the valve body 5 is not limited to the slit 9 as described above, and the mechanism is limited as long as it opens when the container internal pressure rises and automatically closes when the container internal pressure is released. It is needless to say that a so-called opening hole may be used as described later.
• FIGS. 10 to 12 show examples of application of the check valve 2 of the present invention to various container bodies 3.
• FIG. 10 shows a plastic pot in which a container body 3 often used for shampoos and the like can be deformed by external pressure
• FIG. 11 shows an example of application to a gusset bag
• FIG. Figures 11 and 12 are both so-called bag-like containers.
• the check valve of the present invention can be applied to any type of container that pushes the container body 3 by hand to apply an external pressure to generate an internal pressure in the container body and discharge the contents. Conversely, it cannot be applied to containers such as glass bottles whose container body is not deformed by external pressure.
• FIG. 16 to FIG. 20 show another embodiment of the check valve 2 of the present invention. .
• FIG. 16 shows a case having two slits
• FIG. 17 shows a case where the tubular body 4 and the valve body 5 are integrally formed.
• the entire body may be integrally formed of an elastic material such as rubber, or the cylindrical body 4 may be formed of a hard material such as plastic and covered with the elastic material of the valve body 5. .
• the passage 19 of the cylindrical body 4 is extended to the vicinity of the top portion in contact with the valve body 5 and further branched into two branches.
• the top part 15 of the tubular body 4 and the inner end part 16 of the distal end of the valve body 5 are in close contact with each other to close the opening of the passage 19. Therefore, as the valve mechanism, this part and the slit And has a two-stage configuration. That is, as shown by the arrow in FIG.
• the former alone fulfills a sufficient function as a valve, so that the valve body 5 may be provided not with the slit 9 but with an opening hole, and may be used depending on the viscosity of the liquid used.
• FIG. 19 and FIG. 20 show a case with a discharge adjusting mechanism. That is, if the valve and the discharge port are open at all times, the discharge rate changes with the rise of the container internal pressure, but if the internal pressure of the container body 3 rises carelessly, the contents will be discharged from the discharge port 2 You will jump out. Therefore, it is a mechanism that can prevent such a situation.
• FIG. 19 (a) is a vertical sectional view in a normal state
• (b) is a plan view of a valve body
• FIG. 20 (a) is a vertical sectional view in a discharge state
• (b) is a longitudinal section in a closed state.
• valve body 5 is provided with a projection 23 adapted to the opening 22 at the tip of the cylindrical body 4 facing inward, and in the normal state shown in FIG.
• the tip opening 22 and the projection 23 of the valve element 5 are fitted and closely fitted to each other to close the opening 22 of the passageway 19.
• the contents pushed out by the rise of the internal pressure of the container body 3 and having passed through the passage 19 push up the projections 23 of the valve body 5 as shown in FIG.
• a gap is opened, so that the gas flows out from the gap, flows out from an opening 24 provided around the projection 23 of the valve body 5, and is discharged from the discharge port 2 of the outer cover 6.
• the width of the pressure applied to the container body 3 from which the contents can be discharged is set, as described above, by the inner diameter D of the passage 19 of the cylindrical body 4, the opening diameter of the valve body 5, as shown in FIG. ⁇ ⁇
• the strength of the elastic force of the valve 5 and the distance from the upper end of the valve 5 to the lower end of the discharge port of the outer cover 6 may be appropriately adjusted.
• a projection may be provided on the top of the valve element 5.
• FIGS. 21 and 22 show that the projection 26 provided on the top of the tubular body 4 and the opening 27 provided in the valve body 5 match to form a valve mechanism.
• FIG. 21 (a) is a vertical sectional view of a normal state
• FIG. 21 (b) is a plan view of a cylindrical body 4
• FIG. 22 is a vertical sectional view of a discharge state.
• An opening hole 22 is provided around the projection 26 of the cylindrical body 4. Although four openings are shown in the figure, it goes without saying that any number of openings may be provided.
• the content pushed out from the container body 3 pushes the valve element 5 closing the opening 22 through the passage 19 of the cylindrical body 4 from the inside. Then, the opening hole 27 of the valve body 5 that has been in close contact with the projection 26 of the cylindrical body 4 is pushed up to form a gap between the two, and the contents are discharged from the discharge port 2 of the outer cover 6.
• valve body 5 is provided so as to be movable in a space B provided between the cylindrical body 4 and the outer body 6.
• a split is provided between the valve body 5 and the outer body 6.
• the valve body 5 is provided so as to be in close contact with the tubular body 6 in a normal state.
• FIG. 23 shows a type in which the projection 23 provided on the valve element 5 is in close contact with the tip opening 22 of the cylindrical body 4, and FIG. And the opening 27 of the valve element 5 are in close contact with each other.
• FIG. 23 shows a normal state
• FIG. 24 (a) shows a discharge state
• FIG. 24 (b) shows a closed state.
• FIG. 26 shows a case where the measuring cap 29 is provided by forming the upper part of the protective cap 7 into a cup shape. The contents discharged from the discharge port 2 can be measured.
• the measuring section 29 is desirably formed of a transparent material.
• the measuring unit 29 is turned upward and the container body 3 is pressed to measure the required amount.
• an embodiment in which the check valve of the present invention is applied to a container having a liquid measuring function will be described in detail.
• FIG. 27 is a perspective view showing a liquid measuring container of the present invention.
• 30 is a liquid measuring container
• 3 is a container main body
• 7 is a protective cap
• 29 is a measuring container (hereinafter a cup)
• 31 is an intake port
• 32 is a suction pipe.
• FIG. 28 is a longitudinal sectional view of the vicinity of the protective cap 7 which is a main part of the present invention.
• C In the central part inside the protective cap 7, a check valve 1 is provided in a concave portion thereof.
• the discharge port 2 at the tip is inserted into an opening 32 provided in the center of the protective cap 7 and opens into the forcep 29.
• the check valve 1 is inserted into the cylindrical member 14, and the cylindrical member 14 is fitted in a concave portion inside the protective cap 7.
• the engagement between the protective cap 7 and the cylindrical member 14 may be performed using screws.
• a suction pipe 33 hangs below the cylindrical member 14, and the tip of the suction pipe 33 reaches the bottom of the container body 3. This is to suck up the liquid from the bottom of the container body 3.
• the thickness (inner diameter) of the suction pipe 33 is changed according to the viscosity of the liquid used. For high viscosity liquids, increase the inner diameter. Conversely, for low viscosity liquids, reduce the diameter.
• 11 is a lid of the cup 29.
• the lid 11 has a T-shaped longitudinal section, that is, a shape in which a bar-shaped member 35 is protruded from the center of the disk-shaped member 34, and a step 36 is formed on the outer periphery of the disk-shaped portion 34. As shown in Fig. 29, it is fitted to the upper end 37 of the cup 29, and the tip end of the rod-shaped member 35 is thinner and abuts the tip opening 2 of the check valve 1 to close the opening. It has become.
• the cup 29 is fixed to the upper end of the protective cap 7 with a screw.
• the connection between the protective cap 7 and the cup 29 may be made by fitting other than screws, but it is necessary to prevent leakage of liquid accumulated in the cup 29.
• the use of O-rings is also effective for this purpose.
• cup 29 should not be stuck and should be removable. By doing so, it is possible to easily remove and wash the cup 29, and to replace the cup 29 with a different capacity according to the amount to be measured as shown in Fig. 30. Is desirable.
• the cup 29 is preferably made of a transparent material, and a scale is preferably provided so that the amount can be easily measured from the side.
• an inlet 38 is provided on the side of the protective cap 7.
• the protective cap 7 penetrates from the side to the center. Holes 39 are provided.
• the side opening of the through hole 39 has a larger inner diameter at a certain depth, the cylindrical member 42 is fitted into the portion, the check valve 43 is inserted therein, and the cap 4 is further inserted.
• the check valve 4 prevents the check valve 4 3 from coming off.
• the cap 4 has an air inlet 45 at its center.
• the check valve 43 has a simpler structure than the check valve 1 in the discharge path, and has only the valve element 5. Needless to say, the use of the same structure as the check valve 1 is not denied.
• the intake port should be closed when the pressure in the container body is positive, and open when the pressure in the container is negative.
• the intake port 38 is provided in the cap 7 in this embodiment, it is needless to say that the intake port 38 may be provided in the container body.
• liquid measuring container of the present invention configured as described above is as follows.
• the container body 3 is pushed with a finger or the like to increase the internal pressure. Due to the increase of the internal pressure, the contents (liquid) enter the suction pipe 32 and go to the discharge port. Then, as shown in FIG. 32, the check valve 1 is opened and flows out into the cup 29. At this time, only the check valve 1 on the discharge side is open, and the check valve 43 on the intake side is closed. Continue to pressurize the container body 3 until the liquid level reaches the scale of the cup.
• FIG. 33 shows a state in which a desired amount has been measured in the cup.
• the check valve 1 is automatically closed by the elasticity of the valve body 5.
• the container body becomes negative pressure due to the restoring force due to the elasticity of the container body 3
• the check valve 43 of the intake port 38 opens, and the outside air is It flows into the body.
• the check valve 43 of the intake port 38 is automatically closed by its own elastic force. Then just dispense the contents in the cup.
• the present invention is configured as described above, it is possible to provide a check valve suitable for dropping and discharging contents (liquid, semi-fluid, etc.) and a container having the check valve and having high storage stability.
• the discharge amount of the content can also be freely adjusted according to the viscosity.
• a liquid container having the measuring function of the present invention a liquid container having flexibility can be applied to various containers, and the measurement can be performed without difficulty while easily adjusting the discharge amount of the contents.
• the container even if the container body is inadvertently pressurized, the container will not be discharged, so that it will not be discharged from the container body more than the measured amount, so that the measurement accuracy is high.
• FIG. 1 is an external perspective view showing a first embodiment of a check valve of the present invention.
• FIG. 2 is a longitudinal sectional view of the main part.
• Fig. 3 (a) is a longitudinal section of the tubular body, (b) is the valve body, and (c) is the longitudinal section of the outer shell.
• Fig. 4 is an illustration of a space partitioned by a valve.
• FIG. 5 is an explanatory diagram showing adjustment dimensions.
• FIG. 6 is an explanatory diagram showing the operation.
• FIG. 7 is an explanatory view showing a state in which the cap is closed.
• FIG. 8 (a) is a front view when one slit is provided, (b) is a plan view thereof, and (c) is a longitudinal sectional view showing a state where the slit is opened.
• FIG. 9 is an explanatory view showing an application example of the slits (a) to (e).
• FIG. 10 is an explanatory diagram showing an example of application to a bottle.
• FIG. 11 is an explanatory diagram showing an example of application to a gusset bag.
• FIG. 12 is an explanatory diagram showing an example of application to a stand patch.
• FIG. 13 is an explanatory view showing a conventional technique.
• FIG. 14 and FIG. 15 are explanatory diagrams when some functions are omitted.
• FIG. 17 are longitudinal cross-sectional views of essential parts showing an example of variations of the tubular body and the valve body.
• FIG. 8 is a vertical sectional view of a main part showing an example of variations of a cylindrical body and a valve body, wherein (a) shows a normal state and (b) shows a discharge state.
• FIG. 19 (a) is a vertical sectional view of a main part of a normal state showing an example of a variation between a cylindrical body and a valve body
• FIG. 19 (b) is a plan view of the valve body.
• FIG. 20 is a longitudinal sectional view of an essential part showing an example of variations of a tubular body and a valve body. (A) shows a discharge state and (b) shows a closed state.
• FIG. 8 is a vertical sectional view of a main part showing an example of variations of a cylindrical body and a valve body, wherein (a) shows a normal state and (b) shows a discharge state.
• FIG. 19 (a) is
• FIG. 21 (a) is a vertical sectional view of an essential part showing an example of a variation of a tubular body and a valve body, and (b) is a plan view of the tubular body.
• FIG. 22 is a longitudinal sectional view of a main part showing a discharge state in an example of the arranging of the cylindrical body and the valve body.
• FIG. 23 is a longitudinal sectional view of a main part showing a normal state in an example of a parallel relation between a tubular body and a valve body according to the second embodiment.
• FIG. 24 is a vertical sectional view of an essential part showing an example of a displacement of a cylindrical body and a valve body in the second embodiment, in which (a) shows a discharge state and (b) shows a closed state.
• FIG. 22 is a longitudinal sectional view of a main part showing a discharge state in an example of the arranging of the cylindrical body and the valve body.
• FIG. 23 is a longitudinal sectional view of a main part showing a normal state
• FIG. 25 shows the cylindrical body and the valve body in the second embodiment.
• ( a ) is a normal state and (b) is a main part longitudinal sectional view showing a discharge state.
• FIG. 26 is a conceptual diagram when the check valve of the present invention is applied to a container having a liquid measuring function.
• FIG. 27 is a perspective view showing a first embodiment of a container having a liquid measuring function of the present invention.
• FIG. 28 is a longitudinal sectional view of an essential part with the lid removed.
• FIG. 29 is a longitudinal sectional view of an essential part with the lid attached.
• FIG. 30 is a perspective view of a main part showing a state where a measuring container is replaced.
• FIG. 31 is a perspective view showing a use state.
• FIG. 32 is a longitudinal sectional view of a main part showing a discharge state.
• FIG. 33 is a longitudinal sectional view of a main part showing a weighing completed state.
• FIG. 34 is a vertical cross-sectional view of a main part showing an outside air suction state. .

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

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Citations (7)

• 2002
  • 2002-03-13 US US10/471,697 patent/US20040112916A1/en not_active Abandoned
  • 2002-03-13 KR KR10-2003-7011888A patent/KR20040012732A/ko not_active Application Discontinuation
  • 2002-03-13 CN CNA028065751A patent/CN1498184A/zh active Pending
  • 2002-03-13 CA CA002441026A patent/CA2441026A1/en not_active Abandoned
  • 2002-03-13 EP EP02705158A patent/EP1386850A1/en not_active Withdrawn
  • 2002-03-13 WO PCT/JP2002/002390 patent/WO2002076845A1/ja not_active Application Discontinuation
  • 2002-03-14 TW TW091104857A patent/TW577844B/zh not_active IP Right Cessation

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