JP2013095481A - Inverted container with slit valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inverted container with a slit valve capable of exhibiting high safety and achieving a good use state by preventing generation of "air lock" even when configured to close an opening with a cap, the opening having the slit valve in the inverting waiting state of the inverted container.SOLUTION: In the inverted container with the slit valve 10, the slit valve 10 is attached to an opening cylindrical portion 3 of a squeeze container body 1, and squeeze deformation of the container body 1 is performed to discharge a viscous content N from the slit valve 10. A storage body 16 to/from which the content N freely enters/leaves and in which part of the content N is stored in the rising state is installed immediately below the slit valve 10. During inversion to the inverted attitude for discharging the content N, the stored content N in the storage body 16 is promptly filled inside the slit valve 10, so as to prevent generation of "air lock".

Description

  The present invention relates to an inverted container with a slit valve provided with a slit valve that opens and closes according to the pressure in the container body.

  There is known a slit valve in which a slit is provided in a top plate portion of a top cylinder made of a soft elastic material, and when the pressure is applied, the slit opens to discharge the contents. When this slit valve is assembled in the opening of the bottle-shaped container body, and the container body is pressed in an inverted state and squeezed to increase the internal pressure, the slit valve is opened and stored by the increased internal pressure. The contents can be discharged.

  In addition, when the contents to be stored are viscous such as shampoo, rinse, cosmetic liquid, liquid detergent, and dressing, the container body was inverted from an upright position to discharge the contents. At this time, it takes time until the viscous contents located in the lower part of the container body flow down to the opening of the container body, and it is waited until the contents can be discharged. In view of this, there has been considered an inverted container in which the container body is kept in an inverted posture, the contents are always positioned close to the opening of the container body, and the contents can be discharged without waiting time.

  However, in order to discharge the contents from the standby state where the container body is inverted, the inverted container flows down from the opening while the container body is in an upright posture and the cap is opened. There was dissatisfaction that it had to wait for this distant contents to flow down to the opening because it was separated.

  Also, it is known that a slit valve is attached to the opening of the inverted container described above, and the badness of “liquid running out” of the viscous contents has been improved by the “liquid draining” with the slit valve. When the container body is pressed before an object reaches the slit valve, the slit valve generates a so-called “air bite” that makes a “push” sound and opens open. The contents may be scattered and the surroundings may be soiled.

  As a conventional technique for solving this dissatisfaction, Japanese Patent Laid-Open No. 08-282690 discloses a technique in which a slit valve is provided in an opening of a container body, and a lid body that opens and closes the opening provided with the slit valve is in an open posture. In this state, the container body can be held in an inverted posture. In this prior art, since the container body can be held in an inverted posture with the lid open, it can stand by, so that the contents can be discharged as it is from the standby state in which the container body is inverted. There is an advantage that unnecessary flow of contents can be prevented.

JP 08-282690 A

  However, in the above-described prior art, the slit valve is exposed in the standby state in which the container body is inverted, so the weight of the contents is opened in the valve opening direction with respect to the slit valve. Since the contents act as force, there is a problem that the contents leak from the slit valve and unnecessary discharge of the contents occurs due to the action of a slight external force on the container body. It was.

  Therefore, the present invention was devised to solve the problems in the prior art described above, and even if the opening portion provided with the slit valve is closed with a cap in the inverted stand-by state of the inverted container, the “air biting” It is a technical problem to prevent the occurrence of "" and an object of the present invention is to obtain an inverted container with a slit valve that exhibits high safety and can be used in good condition.

The main configuration of the present invention for solving the above technical problem is:
An inverted container with a slit valve that assembles a slit valve with a cap body that opens and closes the container body in the squeeze deformable bottle-shaped container body and presses the container body to discharge the viscous contents from the slit valve. Being
The cap body is configured to be able to support the inverted posture of the container body,
Immediately below the slit valve assembled in the mouth tube portion of the container body, a storage body for allowing the contents to freely enter and exit and storing a part of the contents in an upright posture of the container body in a residual state is provided.
It is in.

  In the standby state in which the container body is inverted, the mouth tube portion of the container body assembled with the slit valve is closed by the cap body, and even if an external force acts on the container body as a pressing force, the slit valve is closed. Secure and maintain to prevent unauthorized leakage and discharge of contents. Further, since the contents flow down to the upper side which is the mouth tube portion side, that is, the side where the reservoir is located, the contents enter the reservoir. When the container body is inverted to the upright state in order to open the cap body from this standby state, the content flows down to the lower side, which is the bottom side of the container body, due to its own weight. However, it remains in the reservoir and is located close to the slit valve.

  For this reason, if the container body is inverted from the upright posture to the inverted posture after the cap body is opened, the contents flowing down to the lower portion of the container body are positioned in the storage body before reaching the slit valve. The contents that have reached the slit valve promptly fill the inside of the slit valve. Therefore, even if the contents discharged from the lower part of the container body reach the slit valve and the container body is squeezed and the contents are discharged, Until the air is completely discharged, the occurrence of “air biting” is prevented.

  Thus, the amount of the content stored in the storage body only needs to continue to fill the inside of the slit valve until the content located at the bottom of the container body flows down to the slit valve. However, the value of the amount of content stored in the storage body is basically set according to the degree of viscosity of the content. That is, when the content is highly viscous, the flow rate is slow, so the amount of the content stored in the reservoir tends to be large, and conversely, when the content is low in viscosity, Since the flow-down speed is fast, the amount of contents stored in the reservoir is set to be small.

  Another configuration of the present invention is the main configuration described above, wherein the reservoir is configured in a bottomed cylindrical shape with the upper end portion as a fixing ring for assembly, and the bottomed cylindrical portion below the fixing ring is In addition to the above, a storage cylinder having a window hole as an entrance for contents is opened.

  In the case where the reservoir is configured in a bottomed cylindrical shape having a window hole through which the contents can freely enter and exit, the inside of the upper portion of the container body where the reservoir is located is in a standby state in which the container body is inverted. Since it is filled with the contents, the contents enter the reservoir through the window hole. Therefore, when the container body is inverted from the inverted position to the upright position, the contents that have entered the storage body flow out through the window hole, but some of the contents are always stored below the window hole. It will be located in the cylinder in a residual state.

  In addition, another configuration of the present invention is a configuration in which the storage body is made into a bottomed cylindrical shape having a window hole through which the contents can freely enter and fixed to the main configuration described above, and the window hole is fixed to the storage cylinder. It is configured to have a narrow gap formed between the rings, and the cylindrical wall portion of the storage cylinder located below the window hole is a deformed cylindrical wall part that is easily bent and deformed.

  In the case where the window hole has a narrow gap shape, and the cylindrical wall portion of the storage cylinder located below the window hole is a deformable cylindrical wall part that is easily bent and deformed, it is difficult for the contents to pass through the window hole. Therefore, when the container body is inverted from the inverted posture to the upright posture, the contents are reliably and sufficiently stored in the storage cylinder, and the container body is inverted from the upright posture to the inverted posture. When the body part is pressed, the deformed cylindrical wall part is bent and deformed by the pressure of the air moving to the slit valve side through the window hole, and the gap forming the window hole is widened. Due to the deformation of the deformed cylindrical wall portion, the stored content inside is pushed out and quickly reaches the slit valve.

  In addition, another configuration of the present invention is obtained by adding the content storage amount in the storage body according to the single discharge amount of the content to the main configuration described above.

  If the amount of content stored in the reservoir is set according to the single discharge amount of the content, this storage amount is set to a value approximately equal to or greater than the single discharge amount of the content. By doing so, it is possible to reliably prevent the occurrence of “air biting” regardless of the length of time until the content flowing down to the lower side of the container body returns to the upper side. For example, even if the amount of the content liquid decreases and the time until the content flowing down to the upper side of the container body returns to the upper side becomes longer, the occurrence of “air biting” is reliably prevented. be able to.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the main configuration of the present invention, when the container body is inverted from the upright posture to the inverted posture, the contents located in the storage body quickly fill the inside of the slit valve. ”Can be prevented, whereby a good use situation of the inverted container with the slit valve can be obtained.

  In the case where the reservoir is configured as a bottomed cylinder with a window hole through which the contents can freely enter and exit, the contents can always be stored in the reservoir, so it is possible to reliably prevent the occurrence of “air biting”. The effect can be obtained.

  In the case where the window hole has a narrow gap shape and the cylindrical wall portion of the storage cylinder located below the window hole is a deformable cylindrical wall part that is easily bent and deformed, the storage cylinder is surely and sufficiently provided in the storage cylinder. The contents can be stored, and the contents in the storage cylinder can be quickly reached the slit valve. Make sure.

  In the case where the amount of contents stored in the reservoir is set according to the discharge amount of the contents, regardless of the difference in the viscosity of the contents or the decrease in the amount of contents, The occurrence of “air biting” can be surely prevented, and thus a safe use situation can be reliably obtained.

It is the front view which cut through the principal part which shows one embodiment of this invention. It is a whole perspective view of the slit valve used for the embodiment example of FIG. It is a principal part longitudinal cross-sectional view at the time of making the embodiment of FIG. 1 stand by inversion. It is a principal part longitudinal cross-sectional view at the time of making it erect to the embodiment example of FIG. FIG. 5 is a longitudinal sectional view of a main part with the outer cap removed in the state shown in FIG. 4. It is a principal part longitudinal cross-sectional view at the time of the content discharge operation | movement of the example of embodiment of FIG. It is a whole perspective view which shows the other embodiment example of the storage body to be used. FIG. 8 is a half vertical sectional view of the reservoir shown in FIG. 7.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIGS. 1 to 6 show an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of an essential part of an inverted container with a slit valve according to the present invention, which is blow molded into a bottle shape. It is comprised from the container body 1 which has resin squeeze property, and the cap body 4 assembled | attached closely to the mouth tube part 3 of this container body 1. FIG. A container body 1 (see FIG. 1) is constructed by standing up a cylindrical mouth tube portion 3 at an upper end of a bottomed cylindrical body portion 2 through a tapered tubular shoulder portion whose diameter is reduced upward. It is molded so as to be squeezed and deformable with a soft polyethylene resin or the like.

  The cap body 4 (see FIG. 1) includes a main body cap 5, a slit valve 10, a storage body 16, and an outer cap 20. The main cap 5 extends from the inner peripheral end of the ring-plate-like top wall 7 connected to the upper end of the assembled tube 6 that is externally screwed to the mouth tube portion 3 through a reduced diameter step portion in the middle. While the piece 8 is erected, a seal tube 9 that is tightly fitted into the mouth tube portion 3 is suspended. The slit valve 10 (see FIG. 1 and FIG. 2) is a top cylinder made of a soft elastic material, and a top plate 11 that is curved and depressed in a spherical arc shape is connected to the upper end of an upright cylinder 13. 11, a cross-shaped slit 12 is formed, and an outer flange-like assembled collar 14 is continuously provided at the lower end of the upright cylinder 13. The slit valve 10 is configured such that, with the upright cylinder 13 positioned in the mouthpiece piece 8, the assembled collar 14 is placed between the diameter-reduced step portion of the mouthpiece piece 8 and the fixing ring 15 fitted and fixed. As a result, the assembly to the main cap 5 is achieved.

  The storage body 16 (see FIG. 1) is configured in a bottomed cylinder shape, and most of the storage body 16 is a storage cylinder 17, and the fixing ring 19 that is the upper end portion is connected to the opening of the main cap 5 with the slit valve 10. By being fitted and fixed to the seal cylinder 9 below the cylinder piece 8, it is positioned immediately below the slit valve 10 in the mouth cylinder part 3. In the upper end portion of the storage cylinder 17 to which the fixing ring 19 is continuously provided, a window hole 18 through which the contents N can freely enter and exit is formed in a portion exposed from the seal cylinder 9 into the mouth cylinder portion 3. The lower storage cylinder 17 portion below the window hole 18 is a storage portion for the content N having viscosity such as shampoo, rinse, cosmetic liquid, liquid detergent, and dressing.

  Between the fixing ring 19 and the storage cylinder 17 of the storage body 16, a step portion whose diameter decreases from the fixing ring 19 toward the storage cylinder 17 is formed. By forming this stepped portion, the width of the gap serving as a passage for the contents N formed between the storage cylinder 17 and the mouth cylinder part 3 can be increased.

  The outer cap 20 (see FIG. 1) secures the closure of the container in a standby state and provides a leg portion when the container is turned upside down. In the illustrated embodiment, the peripheral end is slightly raised. The fitting cylinder piece 23 is detachably fitted to the mouthpiece piece 8 of the main cap 5 on the lower surface of the top plate 21, and the main cap is positioned outside the fitting cylinder piece 23. The support cylinder pieces 24 that are fitted and abutted on the upper peripheral edge of the upper surface 5 are respectively suspended, and the central portion of the top plate 21 is in a standby state in which the outer cap 20 is attached to the main cap 5. A pressing portion 22 that is depressed into a spherical arc shell that prevents the occurrence of deformation that reduces the closing function of the slit valve 10 is lightly contacted or very close to the top surface of the top plate 11 of the valve 10.

Next, the operation of the illustrated embodiment will be described in order.
In the standby state (see FIG. 3) in which the container storing the contents N is supported in an inverted posture with the outer cap 20 as a leg portion (see FIG. 3), the inside of the upper part of the container body 1 to which the slit valve 10 and the reservoir 16 are assembled is the contents. It is in a state filled with N. In this inverted stand-by state, the weight of the contents N acts on the top plate 11 formed with the slit 12 of the slit valve 10 in the “open” direction. Therefore, the slit valve 10 can maintain a reliable and stable closed state without causing the contents N to leak out.

  When the container body 1 is reversed to the upright posture from the inverted standby state (see FIG. 4), the contents N located in the upper part of the container body 1 are located on the lower side of the container body 1 as indicated by arrows. At this time, a part of the content N is stored in the storage cylinder 17 in a residual state. Since the storage cylinder 17 is a simple bottomed cylinder, air may remain in the storage cylinder 17 during the inverted standby state shown in FIG. At the time of the upside-down, the content N that has been located at least in the portion extending from the slit valve 10 and the fixing ring 19 flows down into the storage cylinder 17, so that the content N is reliably stored in the storage cylinder 17. Become.

  In the upright posture state of the container body 1, the contents N flow down to the lower portion of the container body 1 and the pressure from the contents N is not applied to the slit valve 10. Even if the cap 20 is removed (see FIG. 5), there is no possibility that the slit valve 10 will open improperly and the contents N will be leaked or discharged. Therefore, the outer cap 20 is safely removed in the state where the container body 1 is in the upright posture, so that the slit valve 10 can be opened.

  When the container body 1 is inverted from the upright posture to the inverted posture (see FIG. 6), the contents N flow down as indicated by the arrows and fill the inside of the slit valve 10, and in this state, the container body 1 By pressing the body portion 2 and squeezing to increase the internal pressure, the slit valve 10 is opened and the discharge of the contents N can be obtained. At the beginning of reversing the container body 1 from the upright posture to the inverted posture, the storage cylinder 17 is placed before the contents N located at the lower portion of the container body 1 reach the upper portion of the container body 1. Since the content N in the container quickly fills the slit valve 10, even if the discharge operation is performed before the content N located in the lower part of the container body 1 reaches the slit valve 10, “ A safe discharge operation of the contents N can be obtained without causing "air biting".

  The contents N stored in the storage body 16 reach the inside of the slit valve 10 prior to the contents N located at the lower part of the container body 1 when the container body 1 is inverted to the inverted posture, and the container Until the contents N at the lower part of the body 1 reach the slit valve 10, the occurrence of “air biting” is prevented, but the contents N located at the lower part of the container body 1 reach the slit valve 10. The time varies depending on the viscosity of the content N and the remaining amount of the content N, and is not constant. For example, when the viscosity of the content N is high, or when the remaining amount of the content N decreases, the content N tends to increase.

  Therefore, the content N discharged by one discharge operation can be dealt with that the time for the content N located at the lower part of the container body 1 to reach the slit valve 10 is not constant. When the amount is substantially constant, it is effective to set the amount of the content N stored in the reservoir 16 according to the amount of the content N discharged by this one discharge operation. is there. That is, by setting the amount of the content N stored in the storage body 16 to be approximately equal to or larger than the amount of the content N discharged by one discharge operation, one discharge All of the amount of the content N discharged by the operation can be supplemented by the stored content N of the storage body 17 that can quickly reach the slit valve 10, and the occurrence of "air biting" is reliably eliminated. Can do.

  When the discharge of the contents N has been completed, the outer cap 20 is attached to the main cap 5 and the container body 1 is put into the standby state shown in FIG.

  FIGS. 7 and 8 show another embodiment of the storage body 17, and the window hole 18 is formed in a narrow semi-ring-shaped gap formed between the storage cylinder 17 and the fixing ring 19. The cylindrical wall portion of the storage cylinder 17 located below the window hole 18 is formed into a deformed cylindrical wall portion 17a that is thin and easily deformed.

  When the container body 1 is inverted from the inverted posture to the upright posture, the contents N above the storage cylinder 17 tend not to pass through the window hole 18. Inflow into the storage cylinder 17 is surely achieved, whereby the storage body 16 stores a sufficient amount of the contents N.

  Further, when the container body 1 is inverted from the upright posture to the inverted posture and the body portion 2 is pressed, the pressure of the air that moves toward the slit valve 10 through the window hole 18 deflects and deforms the deformed cylindrical wall portion 17a. Thus, the gaps forming the window holes 18 are widened to improve the passage of the contents N. At this time, the stored contents inside the storage cylinder 17 are pushed out toward the slit valve 10 due to the inward deformation of the deformation cylinder wall portion 17a accompanying the widening deformation of the window hole 18. When the pressing on the body portion 2 is stopped, the deformation toward the inside of the deformed cylindrical wall portion 17a is reversed and returned, so that the window hole 18 returns to a tendency that the contents N are not easily passed.

  Note that the present invention is not limited to the above-described embodiment. For example, the combination of the main cap 5 and the outer cap 20 can have a hinge cap structure, and the slit 12 of the slit valve 10 has a cross shape. Instead of a linear shape, it may be a single line or a triple line. Further, the entire cylinder 16 is bent instead of forming the deformed cylinder wall portion 17a by thinning the cylindrical wall portion of the storage cylinder 17. It is also possible to mold with a material that easily deforms.

  As described above, the inverted container with a slit valve according to the present invention reliably causes the occurrence of “air biting” when the content N having a viscosity is discharged by opening the slit valve 10. It can be prevented, and a wide range of utilization is expected for an inverted container with a slit valve that discharges the viscous content N.

DESCRIPTION OF SYMBOLS 1; Container body 2; Body part 3; Mouth part 4; Cap body 5; Main body cap 6; Assembly cylinder 7; Top wall 8; Mouth piece 9; Standing cylinder 14; Assembly rod 15; Mounting ring 16; Reservoir 17; Storage cylinder 17a; Deformed cylinder wall 18; Window hole 19; Fixing ring 20; Outer cap 21; Cylinder piece 24; support cylinder piece N; contents

Claims (4)

A slit valve (10) is assembled in the mouth tube (3) of the squeeze-deformable bottle-shaped container body (1) by a cap body (4) for opening and closing the container body (1), and the container body (1 ) To discharge the viscous content (N) from the slit valve (10), the cap body (4) is configured to support the inverted posture of the container body (1). Storage of storing a part of the content (N) in a residual state so that the content (N) can freely enter and exit directly below the slit valve (10) and the container body (1) is in an upright posture. An inverted container with a slit valve, characterized in that a body (16) is provided. The storage body (16) is formed in a bottomed cylindrical shape having an upper end portion as a fixing ring (19) for assembly, and a bottomed cylindrical portion lower than the fixing ring (19) is disposed at the upper end portion. The inverted container with a slit valve according to claim 1, wherein a storage cylinder (17) having a window hole (18) serving as an entrance / exit of (N) is used. The window hole (18) is configured as a narrow gap formed between the storage cylinder (17) and the fixing ring (19), and the storage cylinder (17) positioned below the window hole (18) is formed. The inverted container with a slit valve according to claim 2, wherein the cylindrical wall portion is a deformable cylindrical wall portion (17a) that is easily bent and deformed. The inverted container with a slit valve according to any one of claims 1 to 3, wherein a storage amount of the content (N) in the storage body (16) is set according to a single discharge amount of the content (N).

Images