JP2004051224A - Baglike container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a baglike container with a reduced residual liquid by securing an outflow passage by gradually decreasing the wall thickness of a liquid storage bag of the baglike container toward the lower end or providing a groove forming an outlet path on the internal surface of the liquid storage bag. <P>SOLUTION: The container consists of a spout and the liquid storage bag, which is formed with a discharging groove on the internal surface of the liquid storage bag. Alternatively, a structure of the container consisting of the spout and the liquid storage bag, having the wall thickness of the bag gradually decreasing toward the lower end is employed. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bag-like container.
[0002]
[Prior art]
2. Description of the Related Art A bag-shaped container in which a mouth member is attached to a liquid storage bag, and a refill container in which the bag-shaped container is stored in a rigid outer frame, that is, an outer container, have been conventionally known (for example, Patent Documents). 1).
[0003]
[Patent Document 1]
Japanese Patent Application No. 227869/1999
[Problems to be solved by the invention]
However, when the viscosity of the content liquid is relatively high, it is customary to perform discharge by a pump attached to the bag-shaped container. It is crushed so that the inner surfaces are joined.
[0005]
When the inner surface of the liquid storage bag is sequentially joined and crushed from the lower end, most of the content liquid can be poured out.However, the crushing method is not necessarily performed regularly, and the middle portion of the inner surface of the liquid storage bag is not necessarily crushed. It often happens that they are joined first.
In this case, there is a problem that the lower content liquid is not poured out from the joining portion and remains in the liquid storage bag.
[0006]
In addition, there is also a problem that the liquid in the space between the mouth of the liquid storage bag and the lower end of the suction pipe of the pump or the upper part from the lower end of the suction pipe of the liquid storage bag remains without being poured out.
[0007]
The present invention has an object to solve the above-described problems by gradually reducing the thickness of the liquid storage bag of the bag-like container toward the lower end or providing a groove for forming an outflow path on the inner surface of the liquid storage bag. Therefore, it is an object of the present invention to provide a bag-like container in which a liquid flow path is secured and the remaining amount of the content liquid is reduced.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a container comprising a spout and a liquid storage bag as a bag-shaped container, wherein an outflow groove is formed on an inner surface of the liquid storage bag. As a specific mode, the thickness of the liquid storage bag is gradually reduced toward the lower end.
[0009]
As another embodiment, a configuration is adopted, which is a container including a spout and a liquid storage bag, wherein the thickness of the liquid storage bag gradually decreases toward the lower end.
[0010]
As an embodiment of the mouth of the bag-shaped container, they are integrally joined by adhesive, and the spout comprises a support for the liquid storage bag, the support extending from the lower end of the adhesive surface, and A configuration characterized by having a frustum protruding from the front end.
[0011]
As a bag-shaped container with a liquid discharge pump attached, a liquid discharge pump with a suction pipe suspended from the lower end was attached to the spout, and the lower end of the suction pipe was inserted into the liquid storage bag. Adopt a characteristic configuration.
[0012]
As an embodiment of the outflow groove, the outflow groove includes a vertical groove portion provided at least in the center of the upper end, and is configured to connect the upper and lower edges of the liquid storage bag, or the outflow groove is And a lattice-shaped groove disposed at the center of the upper end of the crossing portion and connecting the upper and lower edges of the liquid storage bag.
[0013]
Still further, the lattice-shaped outflow groove is configured such that the lattice is formed gradually larger toward the lower part of the liquid storage bag, or the outflow groove is gradually shallower toward the lower part of the liquid storage bag. A configuration characterized by being formed is adopted.
[0014]
As the refill container, a configuration is adopted in which each of the above bag-shaped containers is used as an inner container and is detachably fitted to an outer container.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, A is an outer container, B is a deformable bag-shaped container removably housed in the outer container A, and C is equipped with a pump D to be inserted into an insertion hole at the inner container B mouth. A cap E is a discharge head attached to the upper end of the piston member of the pump D, and F is an overcap.
[0016]
As shown in FIG. 2, an outer container A is composed of a container body A1 and a cover A2, each of which has a body peripheral wall 1 having a substantially elliptical cross section with an upper end being an open end, and a bottom wall 3 having a plurality of openings 2. It consists of
A fitting tube 4 having a reduced diameter is formed at an upper end of the trunk peripheral wall 1, and a bulging portion 5 is provided at an intermediate portion of the outer periphery of the fitting tube 4.
The inner circumference of the fitting tube 4 is larger in diameter than the inner circumference of the body peripheral wall 1, and the engagement surface 6 of the inner container B and the supporting step 7 are formed.
[0017]
The lid body A2 includes a top wall 8 and a side peripheral wall 9 having the same cross-section as the trunk peripheral wall 1, and a perforation hole 10 into which the mouth of the inner container B is inserted is formed in the top wall 8, A support cylinder 12 provided with a bulging ring 11 on the outer periphery is erected.
The side peripheral wall 9 is fitted on the outer periphery of the fitting tube 4, and an engagement portion 13 that engages with the bulging portion 5 is provided at the lower end of the inner periphery.
[0018]
As shown in FIGS. 3 and 4, the bag-shaped container B includes a spout 15 and a liquid storage bag 16 of a liquid content attached to a lower portion of the spout 15.
The outlet 15 includes a substrate 17, a mounting cylinder 18 of the pump D erected on the upper surface of the substrate 17, and a support 19 of a liquid storage bag 16 erected from the lower surface of the substrate 17. In the center of the outlet portion 15, an insertion hole 20 for the pump D is formed, which penetrates the mounting cylinder 18 and the support 19 of the liquid storage bag.
The substrate 17 has the same outer shape as the engaging surface 6 on the inner periphery of the fitting tube 4 of the outer container A, and is mounted on the supporting step 7.
[0019]
The mounting tube 18 includes a screw tube portion 22 in which a screw 21 is screwed, and an engagement tube portion 23 into which the cover A2 of the outer container A is fitted.
The support 19 has a rhombic cross-sectional outer shape, each surface of which is an adhesive surface 24, and has a groove 25 extending in the lateral direction.
At the lower end of the support 19, a truncated pyramid 27 having a predetermined height is formed by each tapered surface 26 inclined from the lower end of the bonding surface 24.
[0020]
Further, the cross-sectional outer shape of the support 19 may be an elliptical shape having a long-axis end protruding, and may be changed to the truncated pyramid 27 and may be an elliptical truncated cone extending from the lower end of the bonding surface 24. It may be a truncated cone.
[0021]
The liquid storage bag 16 is a bag formed by laminating two films 28 and 29 and bonding both side edges 30a and 30b and a lower peripheral edge 31 to each other. At the same time, the remaining upper end portions 32a and 32b are bonded to each other with a width corresponding to the height of the bonding surface 24.
[0022]
As the film, an aluminum film laminated with a single layer or a synthetic resin film, or a single layer or a laminated synthetic resin film can be used.
An inner surface of one or both of the films 28 and 29 is provided with a vertical line extending from the center of the upper end of the film and an outflow groove 33 connecting upper and lower edges along a wavy line following the vertical line. Have been.
[0023]
As shown in FIG. 1, the cap C includes a side peripheral wall 36 on which a screw 35 is screwed and a guide cylinder 37 erected on the upper wall, and a member for attaching and guiding the pump D is provided on the upper wall. It is arranged.
[0024]
The pump D includes a cylinder D1 and a piston member, and a swelling ring 40 that seals a space between the spout port 15 and the insertion hole 20 of the pump D is provided on a peripheral surface of the cylinder D1. A suction pipe 41 is vertically provided at the lower end of the cylinder D1.
[0025]
The cap C to which the pump D is attached is fitted to the mounting cylinder 18 of the spout 15 of the bag-shaped container B via a packing p, and the suction port 42 at the lower end of the suction pipe 41 is connected to the truncated pyramid 27 of the bag-shaped container B. Hanging from the lower end of.
At the upper end of the stem of the piston member of the pump D, a discharge head E having a discharge nozzle 43 is mounted.
[0026]
As the pump D, any pump that can suck up the liquid in the bag-shaped container B and discharge it from the discharge nozzle 43 in accordance with the operation of the discharge head E may be used, and a conventionally known pump is used. Detailed description is omitted.
[0027]
The overcap F has a top wall 45 and a side peripheral wall 46, and is fitted to the support cylinder 12 of the lid A2.
[0028]
Next, the mode of use and the effects of the present invention will be described.
The bag-like container B filled with the content liquid is inserted into the container body A1 of the outer container A, the substrate 17 of the spout 15 is inserted into the inner periphery of the fitting tube 4, and placed on the supporting step 7.
Next, the cover A2 is covered with the outer container A, and the cap C is attached to the mounting cylinder 18 while the pump D is inserted into the insertion hole 20 of the pump D in the outlet 15 of the bag-shaped container B. Assemble the refill container.
At this time, the suction port 42 of the suction pipe 41 of the pump D hangs down from the lower end of the support 19 of the spout 15 and is inserted into the content liquid.
[0029]
In discharging the content liquid, the content liquid is sucked into the pump D from the suction pipe 41 by vertically moving the discharge head E, and is discharged from the discharge nozzle 43.
At this time, the inside of the liquid storage bag 16 becomes a negative pressure, and the liquid storage bag 16 is deformed so as to suck and join the films 28 and 29 on both sides thereof and is crushed.
At the time of deformation, even if the intermediate portions of the inner surfaces of the films 28 and 29 are joined first and the outflow passage is blocked from below, the outflow groove 33 forms a liquid outflow passage between the films 28 and 29. As it is formed, the lower content liquid is also sucked up.
[0030]
In the upper part of the liquid storage bag 16, the height of the tapered surface 26 on the side of the truncated pyramid 27 that hangs down from the bonding surface 24 is only a little. It is sucked into the department.
Then, even when the films 28 and 29 on both sides are pressed against the peripheral edge of the lower end of the suction pipe 41 and the liquid outflow path is closed, the outflow path is formed by the outflow groove 33 and the upper side of the suction port 42 at the lower end of the suction pipe 41. Is also sucked and sucked up.
Therefore, the content liquid is sucked up with a small remaining amount between the lower end of the insertion hole 20 of the pump D of the support 19 and the lower end of the suction pipe 41.
[0031]
When the content liquid has been used up, the cap C is removed, the lid A2 of the outer container A is opened, the bag-like container B is taken out, replaced with a new bag-like container, and the suction pipe 41 of the pump D and the cylinder D1 are replaced with the bag-like container. By attaching the cap C to the mounting tube 18 by inserting it into the insertion hole 20 of the pump D of B, it can be reused as a liquid discharge container.
[0032]
In the above embodiment, the pump is mounted on the bag-shaped container B. However, only the bag-shaped container B is used as a dispensing container for beverages, cosmetics, daily necessities, etc., and the mounting cylinder at the spout port is dispensed. As a tube, the content liquid can be discharged from the discharge tube.
Further, in the case of a beverage container, the liquid may be directly sucked and drunk using the pouring cylinder as a mouth.
Further, instead of the discharge head, a spray head may be attached and used as a spray container.
[0033]
【Example】
In the above-described embodiment, the outflow grooves are formed in a waveform, but the width of the grooves and the shape of the waves can be changed as appropriate. And other shapes can be employed.
Furthermore, by adjusting the thickness of the film, the film can be deformed sequentially from below, and the flow path can be maintained throughout.
Hereinafter, another embodiment will be described.
[0034]
[First embodiment]
In this embodiment, a plurality of vertical grooves are provided on the inner surface of the film.
In FIG. 5A, reference numeral 50 denotes a liquid storage bag having an open end formed by bonding the lower end 52 of the two films 51a and 51b and both ends 53a and 53b, and has two films 51a and 51b. , Three longitudinal grooves 54, 55a, 55b are formed at the center and on both sides thereof.
By adhering the upper ends of the films 51a and 51b to each other while adhering to the support 19, a bag-shaped container B is obtained, and the same effect as the embodiment can be obtained at the time of sucking the content liquid.
[0035]
[Second embodiment]
In this embodiment, a lattice-like groove is formed on the inner surface of the film.
In FIG. 5 (b), reference numeral 60 denotes a liquid storage bag in which the lower end 62 of the two films 61a and 61b and both side ends 63a and 63b are bonded, and the inner surface of the two films 61a and 61b has a grid-like shape. An outflow groove 64 is formed.
The grid-shaped intersection point 65 is located slightly below the truncated pyramid 27 of the support 19 when the bag-shaped container B is formed, and both upper ends extending upward from the intersection point 65 approach the central portion. It is located.
When sucking the content liquid, the suction port 42 of the suction pipe 41 is engaged with the outflow groove 64, so that all of the content liquid can be sucked, as in the embodiment.
[0036]
[Third embodiment]
In this embodiment, a single film is bent and adhered on both sides to form a bag.
In FIG. 6, reference numeral 70 denotes a liquid storage bag in which an outflow groove 71 extending in the vertical direction is formed on the inner surface of the opposed film. The liquid storage bag 70 is formed by centering a single film 73 having a vertical groove 72 in the center. Is formed by bending at the bent portion 74 and bonding both side portions 75a and 75b.
At the time of use, the same operation and effect as the embodiment can be obtained.
[0037]
[Fourth embodiment]
In the present embodiment, a tube whose thickness has been adjusted and which has been extruded is cut, and one end thereof is adhered to form a bag.
In FIG. 7A, reference numeral 80 denotes a tube formed by pressing while adjusting the thickness, and the thickness is gradually increased and decreased repeatedly, and a maximum thickness portion 81 and a minimum thickness portion 82 are alternately juxtaposed. Have been.
[0038]
The tube 80 is cut at a maximum thickness portion 81 and a minimum thickness portion 82, and as shown in FIG. 7B, the minimum thickness portion 82 is bonded to form an adhesive portion 83, and the wall thickness is lower. Is obtained as the minimum thickness.
In use, the thickness of the liquid storage bag 84 on the lower side is thinner than that on the upper side, so that the liquid storage bag 84 is weaker against negative pressure, and the liquid storage bag 84 is crushed from the lower side, and the same operation and effect as in the embodiment can be obtained. .
[0039]
[Fifth embodiment]
In this embodiment, an outflow groove is formed by displacing the depth of the groove on the inner surface of the film.
8A and 8B, reference numeral 90 denotes a liquid storage bag in which the lower end 92 of the two films 91a and 91b and the both ends 93a and 93b are adhered to each other and the upper ends are open ends. , 91b are formed with a corrugated outflow groove 94 at the center so that the depth of the groove gradually decreases toward the lower end 92.
In use, since the lower groove of the container is shallow and the upper groove is deep, the outflow groove 94 functions as a reinforcing rib, and is effectively crushed sequentially from the lower side of the container, and the same effect as that of the embodiment is obtained.
[0040]
Increasing the depth of the groove gradually toward the lower end can also be applied to the first to third embodiments, and the same operation and effect as those of the fifth embodiment can be obtained.
[0041]
[Sixth embodiment]
In the present embodiment, the lattice-shaped grooves are formed on the inner surface of the film by displacing the gaps.
In FIG. 9, reference numeral 100 denotes a liquid storage bag in which the lower end 102 of the two films 101a and 101b and the side edges 103a and 103b are adhered. On the inner surfaces of the two films, the grid gradually increases toward the lower end 102. The outflow grooves 104 are formed in a lattice shape.
At the time of use, the width of the lattice of the container is increased toward the lower end 102, so that the liquid storage bags are effectively crushed sequentially from below and the same effects as in the embodiment are obtained.
[0042]
[Other Examples]
In the fourth embodiment, the thickness of the liquid storage bag is adjusted, but this can be combined with the film of the embodiment and the first to third embodiments.
Further, the fourth embodiment may be combined with the fifth, sixth, and seventh embodiments.
The combined embodiments can combine the functions and effects of the respective embodiments to obtain more excellent effects.
[0043]
In the above-described embodiments and examples, the cross-sectional shape of the outflow groove is not particularly described.
[0044]
In the above embodiments and examples, one end of the liquid storage bag is molded into the bag-like container so as to adhere to the spout, but the liquid storage bag and the spout are molded by insert molding or the like. It may be integrally welded inside.
Alternatively, the preform and the spout may be integrally assembled with each other, and then the preform may be blow-molded into a bag-like container.
Further, the spout portion and the liquid storage bag may be combined into a separate bag to form a bag-like container, or an intermediate molded body in which the spout portion and the liquid storage bag are integrated. After molding, the intermediate molded body may be molded into a bag-like container by blow molding or the like.
[0045]
【The invention's effect】
The present invention has the following effects because it is configured as described above.
Since the outflow groove forming the liquid outflow passage is provided on the inner surface of the liquid storage bag, even if the liquid storage bag is crushed at the time of discharge and the inner surface is suction-joined in the middle of the liquid storage bag, the lower portion of the lower portion is formed through the outflow groove. The contents can be sucked up.
[0046]
Also, while shortening the distance between the adhesive surface of the support and the lower end of the truncated pyramid, the outflow groove is formed up to the upper end of the liquid storage bag, and a part of the outflow groove is joined to the lower end of the suction pipe. The upper liquid is also sucked into the suction port through the outflow groove, so that the remaining amount can be reduced.
[Brief description of the drawings]
FIG. 1 is a partially sectional elevation view of a refill container of the present invention.
FIGS. 2A and 2B are explanatory views of an outer container, wherein FIG. 2A is a sectional elevation view and FIG. 2B is a top view of a container body.
FIG. 3 is a partially sectional elevation view of a bag-like container.
4A and 4B are explanatory views of a bag-shaped container mouth base, wherein FIG. 4A is a top view and FIG. 4B is a bottom view.
5A and 5B are explanatory views of an embodiment of a liquid storage bag, wherein FIG. 5A is a perspective view of a first embodiment, and FIG. 5B is a perspective view of a second embodiment.
FIGS. 6A and 6B are explanatory views of a third embodiment of the liquid storage bag, wherein FIG. 6A is a perspective view of the liquid storage bag, and FIG.
7A and 7B are explanatory views of a liquid storage bag according to a fourth embodiment, in which FIG. 7A is a tube before cutting, and FIG. 7B is a perspective view of the liquid storage bag.
8A and 8B are explanatory views of a liquid storage bag according to a fifth embodiment, wherein FIG. 8A is a top view and FIG. 8B is a side view.
FIG. 9 is a top view of a sixth embodiment of the liquid storage bag.
[Explanation of symbols]
A Outer container A1 Container body A2 Lid B Bag-shaped container C Cap D Pump E Discharge head F Overcap 1 Body peripheral wall 2 Opening 3 Bottom wall 4 Fitting cylinder 5 Swelling part 6 Engaging surface 7 Support step 8 Top Wall 9 Side peripheral wall 10 Fitting hole 12 Support cylinder 13 Engagement part 15 Outlet part 16, 50, 60, 70, 84, 90, 100 Liquid storage bag 17 Substrate 18 Mounting cylinder 19 Support body 20 Insertion hole 21 Screw 22 Screw Tube portion 23 Engagement tube portion 24 Adhesive surface 25 Depressed groove 26 Tapered surface 27 Pyramids 28, 29, 51a, b, 61a, b, 91a, b, 101a, b
Films 33, 64, 71, 94, 104 Outflow groove 35 Screw 36 Side peripheral wall 41 Suction pipe 42 Suction port 43 Discharge nozzles 54, 55a, b, 72 Vertical groove 65 Intersection point 80 Tube 81 Maximum thickness portion 82 Minimum thickness portion

Claims (10)

A container comprising a spout and a liquid storage bag,
A bag-like container, wherein an outflow groove is formed on an inner surface of the liquid storage bag. The bag-like container according to claim 1, wherein the thickness of the liquid storage bag gradually decreases toward the lower end. A container comprising a spout and a liquid storage bag,
A bag-like container characterized in that the thickness of the liquid storage bag gradually decreases toward the lower end. The spout and the liquid storage bag are integrally connected by bonding,
The spout has a liquid storage bag support,
The bag-shaped container according to claim 1, wherein the support has a frustum extending slightly from a lower end of the adhesive surface. The bag-like container according to any one of claims 1 to 4, wherein a liquid discharge pump having a suction pipe provided at a lower end thereof is attached to the outlet, and the lower end of the suction pipe is inserted into the liquid storage bag. . 6. The bag-shaped container according to claim 1, wherein the outflow groove includes at least a vertical groove portion disposed at the center of the upper end, and is formed so as to connect the upper and lower edges of the liquid storage bag. . 6. The bag-shaped container according to claim 1, wherein the outflow groove is a lattice-shaped groove disposed in the center of the upper end of the crossing portion and connecting the upper and lower edges of the liquid storage bag. The bag-shaped container according to claim 7, wherein the grid-shaped outflow groove is formed such that the grid is gradually increased toward a lower side of the liquid storage bag. 9. The bag-shaped container according to claim 1, wherein the outflow groove is formed so as to be gradually shallower toward a lower side of the liquid storage bag. A refill container characterized in that the bag-shaped container according to any one of claims 1 to 9 is used as an inner container so as to be detachably fitted to an outer container.

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