JP2011006116A - Pouch container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simply structured pouch container whose spout device excellently retains the attitude.SOLUTION: The pouch container is structured such that a spout device 2 is mounted at the top end of a bag body 1. The bag body 1 formed from front and back sheets 3 and 4, and a bottom sheet 5 has self-supporting characteristic. Elongated reinforcement bodies 12 extending downward from under the spout device 2 is welded on the inside surface of the front and back sheets 3, 4. The body 1 swells more toward the bottom when a content is filled and the bending force to the outside force in the front and back direction increases toward the bottom. Because the body 12 stands up from a lower position where the bag body 1 is more rigid (has a stronger shape-keeping characteristic) even though it is provided only at an intermediate part in the lateral direction of the bag body 1, it exhibits a high reinforcement function. The body 12 is not bothersome when a person holds the bag body 1.

Description

  The present invention relates to a pouch container used for packaging liquids such as beverages and shampoos. In addition, the liquids as used in this invention mean that it has fluidity | liquidity, The viscosity is not ask | required. Therefore, not only those that have a high viscosity but can flow down naturally, such as shampoos, are included that cannot be discharged unless pressure is applied to the container.

  One type of pouch container is a type in which a pouring device is attached to the upper end of a bag made of a flexible material. In this type, the pouring device is generally composed of a main body welded to the bag body and a cap screwed onto the body, and the contents are discharged by tilting the bag body after removing the cap. Or changing the pump device to the main body and discharging.

  A bag body is manufactured using a sheet (or film) having a laminated structure as a raw material. Generally, a bag body is formed by stacking two front and back material sheets and welding a peripheral portion thereof. The main body of the pouring device is inserted and welded at the top. In many cases, the pouch is a standing pouch that is provided with a bottom portion to provide independence.

  This standing pouch is useful because it can be used and displayed in a bottle-like state, but the bag body is basically made of a flexible sheet and is not rigid. There was a problem that the body could not support the weight of the pouring device and fell (bent) to the front side or the back side in the middle of the top and bottom. The problem of the collapse appears prominently when the contents are reduced and the shape retaining property of the container body is lowered. However, even when the container is displayed in the store, it may gradually collapse over time. In this regard, the applicant of the present application proposed in Patent Document 1 to prevent the pouring device from falling down by arranging reinforcing bodies at, for example, the four corners of the bag body.

JP 2005-239237 A

  Although the thing of patent document 1 can ensure high independence, when this inventor researched after that, the point which should be improved further was seen. For example, when reinforcing bodies are provided at the four corners of the bag body, the mounting cost of the reinforcing body increases, and the reinforcing body sometimes becomes an obstacle when the contents are squeezed out. Some pouch containers have a pouring device attached to the upper corner portion in an inclined posture, but this type of fall prevention measure remains an issue to be improved.

  The present invention has been made in view of such a current situation, and the point of securing self-supporting property by a reinforcing body is to provide a pouch container having a more improved structure while following Patent Document 1. is there.

  The pouch container according to the invention of claim 1 has a bag body in which a bottom sheet is provided at the lower end portion of the front and back sheets, and a pouring device attached to the upper end portion of the bag body, and the front and back sheets A vertical longitudinal reinforcing body for preventing the bag body from being bent is provided at either one or both of the inner surface portions so as to be positioned substantially directly below the pouring device.

  A pouch container according to the invention of claim 2 has a bag body in which a bottom sheet is provided at the lower end portion of the front and back sheets, and a pouring device attached to the upper end portion of the bag body, and the front and back sheets The upper and lower longitudinal reinforcing bodies for preventing the bag body from being bent are provided on either one or both sides of a portion directly below the pouring device. It has been.

  A pouch container according to a third aspect of the present invention comprises a bag body in which a bottom sheet is provided at the lower end of the front and back sheets, and a pouring device attached to the bag body, and the pouring device has two left and right sides of the bag body. In the configuration of being arranged so as to be offset toward one side edge among the longitudinal side edges, in a portion of the inner surface of the bag body that is closer to the other side of the bag body than just below the pouring device. A vertically long reinforcing body for preventing the bag body from being bent is disposed. In the third aspect, it is possible to provide the reinforcement body directly below the pouring device.

  The reinforcing body can be integrally formed with the pouring device. However, in the invention of claim 4, the reinforcing body is manufactured separately from the pouring device, and the reinforcing body is welded to the inner surface of the bag body. is doing.

  The “front and back sheets” in the present invention means sheets positioned on one side and the other side across the axis of the pouring device so as to overlap each other, and the front and back sheets are separated from each other. It is not based on the premise that they are made of materials (although they are often made of different materials). Therefore, the bag body manufactured using the tube-shaped raw material is also included. The bottom sheet may be separate from the front and back sheets or may be integrated.

  In the case of a pouch container with a pouring device attached to the upper edge of the bag body, the portion directly under the pouring device of the bag body is considered to have the weakest bending strength. It can be said that it was thought that the self-supporting effect could not be expected even if a reinforcing body was provided. However, in actuality, the bag body was able to exhibit extremely high self-supporting properties simply by providing a reinforcing body at a location directly below the pouring device as in the present invention. The reason is presumed as follows.

  That is, since the bag body having the bottom sheet becomes closer to the cylinder as it goes to the bottom, it is structurally less likely to be deformed as it is closer to the bottom. Therefore, the bag body is a portion directly below the pouring device. Even so, it has bending strength that keeps the pouring device from falling down below a certain height, but in the present invention, the reinforcing body extends below the pouring device. The pouring device has the same effect as that supported by the lower portion of the bag body having high strength, and it is assumed that the pouring device can be prevented from tilting.

  In the invention of claim 1, since only one or two reinforcing bodies are provided so as to extend below the pouring device, the structure is very simple, and the bag is poured by hand to pour out the contents. Reinforcing body does not get in the way when grasping (squeezing) the body strongly.

  In the case where the lateral width of the bag body is larger than a certain level, a configuration in which reinforcing bodies are arranged on both the left and right sides of the configuration of claim 2 with the exact lower part of the pouring device interposed therebetween may be adopted. Thereby, even if the lateral width of the bag body is large, the fall (bending) can be accurately prevented. In this case, two reinforcing bodies may be provided on each of the front and back sheets, or one reinforcing body may be provided on each of the front and back sheets. Providing one piece for each of the front and back sheets as in the latter not only saves the number of reinforcements and is advantageous in terms of cost, but also allows the bag to be thinned in a flat state, so it can be used for transportation and storage. Bulkiness in stacking sheets can be suppressed (that is, the space can be effectively used for transportation and storage).

  When the pouring device is arranged at one side of the bag body as in the case where the pouring device is provided at the upper corner of the bag body, it is also possible to provide a reinforcing body only under the pouring device. However, in this case, since the reinforcing body is also arranged to be shifted to one side of the bag body, there is a possibility that the portion of the upper portion of the bag body near the other side becomes unstable. In this regard, if the configuration of claim 3 is adopted, the reinforcing body can be reinforced over a wide range, and therefore, there is an advantage that it can be made to stand on its own even when the pouring device is offset.

  The reinforcing body can be provided in the pouring device and kept in contact with the bag body. However, when the reinforcing body is welded to the inner surface of the sheet as in claim 4, the strength of the bag body is high ( Since the reinforcement body can be firmly fixed to the portion where the waist is strong, the independence of the bag body can be further improved.

It is a perspective view of a 1st embodiment. (A) is a longitudinal side view in a state where the contents are considerably consumed, (B) is a cross-sectional view taken along line BB of (A), (C) is a cross-sectional view taken along line CC of (A), (D) FIG. 3 is a separation view showing a mounting structure of a reinforcing body. It is a figure which shows 2nd-3rd embodiment. (A) is a front view of the fourth embodiment, (B) is a sectional view taken along line BB of (A), (C) is another example of (B), and (D) is a front view of the fifth embodiment. , (E) is an EE sectional view of (D), (F) is an FF sectional view of (D). It is a figure which shows 5th-8th embodiment.

  Next, an embodiment of the present invention will be described with reference to the drawings.

(1). First Embodiment First, a first embodiment shown in FIGS. 1 to 2 will be described. The pouch container includes a bag body 1 and a pouring device 2, and the bag body 1 includes a substantially rectangular front and back sheet 3, 4 and a substantially circular (elliptical) bottom sheet 5. The bag body 1 is formed by stacking the front and back sheets 3 and 4 and by stacking the bottom sheet 4 folded in two at the lower part thereof and then welding the edge, and the outer peripheral seal portion (welded portion) is denoted by reference numeral 1a. Is shown.

  Needless to say, each of the sheets 3, 4 and 5 has a laminated structure of an aluminum foil and a resin film, or a multilayer structure composed of a plurality of resin layers. In the following description, the words “left and right” and “front and back” are used to specify the direction, which is the direction (indicated by the arrow A in FIG. 2) facing (opposite) the front sheet 2 or the back sheet 3. The state viewed from this direction is taken as the front view direction, and the state viewed from this direction is used as a reference.

  The pouring device 2 is disposed at the left and right middle portion of the upper end portion of the bag body 1 and has a cylindrical main body 6 welded to the bag body 1. The main body 6 has a male screw portion protruding above the bag body 1, and in FIG. 1A, a cap 7 is screwed into the male screw portion and sealed. An opening confirmation ring 8 is integrally provided at the lower end of the screw lid 7 via a bridge.

  In the usage mode of FIG. 1 (B), the pump device 9 is attached to the main body 6. The pump device 9 has a push nozzle 10. The pump device 9 may be shipped attached to the main body 6, or the pump device 9 may be replaced after removing the cap 7 of FIG. The pump device 9 has a straw that enters the bag body 1.

  Reinforcing bodies 12 having a square cross section made of a resin such as polyethylene or polypropylene are fixed to the left and right intermediate portions of the inner surfaces of the front and back sheets 3 and 4 by welding. Therefore, the front and rear reinforcing bodies 12 are located on both front and rear sides with the straw 10 interposed therebetween. In the present embodiment, the upper end of the reinforcing body 12 is integrally welded to the main body 6 of the pouring device 2 and the front and back sheets 1a and 1b. That is, as shown in FIG. 2 (D), a wedge-shaped thin portion 12a is formed at the upper end of the reinforcing body 12, and the thin portion 12a is sandwiched between the main body 6 and the front and back sheets 1a and 1b and integrally welded. ing. Employing this configuration is an advantage that the reinforcing function is remarkably improved because the reinforcing body 12 is integrated with the main body 6.

  For example, the thin portion 12a may be set to have the same thickness as a whole (in this case, a step portion exists at the base portion of the thin portion 12a). The reinforcing body 12 may be merely brought into contact with the lower end surface of the main body 6 or may be brought close to the lower end of the main body 6. Of course, it may be separated from the main body 6 by a slight dimension.

  The reinforcing body 12 is generally set to a length of about 2/3 of the overall height of the bag body 1. Therefore, the reinforcing body 12 extends to a position where the bag body 1 is greatly expanded in the front-rear direction. In addition, as the reinforcing body 12, various things, such as a resin molded product and a resin sheet slit product, can be used. It is also possible to use a strong resin sheet (fiml).

  The bag body 1 swells when it is filled with the contents, but the bulge gradually decreases as it goes up. Therefore, the bending strength with respect to the external force in the front-rear direction basically decreases as it goes upward. However, the attachment portion 6a welded to the bag body 1 of the main body 6 of the dispensing device 2 has an eyeball shape or an oval shape in a plan view, and thus is the left and right intermediate portion of the front and back sheets 3 and 4 and the main body 6. The portion 1b immediately below is swelled in a semicircular shape in a plan view so as to follow the outer shape of the mounting portion 6a of the main body 6. It can be said that the portion 1b directly below the device 2 is less likely to bend in the front-rear direction.

  And the reinforcement body 12 is the bag body 1 by the synergistic effect that the upper end of the reinforcement body 12 is located just under the main body 6, and the lower end of the reinforcement body 12 is extended to the lower part which has high rigidity. Plays the role of a pillar that prevents the bend in the front-rear direction, and as a result, the pouring device 2 is prevented from falling down.

  In general, the pouch container is manufactured by manufacturing an intermediate bag body that is opened upward by performing welding and punching while feeding the roll-shaped sheet material that is the material of each of the sheets 3, 4, and 5. The main body 6 of the dispensing device 2 is partially inserted into the bag body 1 from the upper end opening, and then the upper edge of the bag body 1 is sealed and welded to the main body 6. This is performed by the procedure of setting the pump mechanism 7 to the main body 6.

  And the reinforcement body 12 of this embodiment can be welded inside the bag body 1 in the stage before attaching the main body 6. FIG. Of course, it is also possible to weld to the front and back sheets 3 and 4 in the process of manufacturing the intermediate bag by punching while welding the original fabric.

(2). Variation of the first embodiment The reinforcing body 12 is not necessarily welded over its entire length, and it is possible to partially weld a plurality of vertical locations or only one location. Furthermore, although the cross-sectional shape of the reinforcing body 12 is a horizontally long rectangle, it can be set to an arbitrary shape. For example, it can be set to square, triangle, trapezoid or the like. It is also possible to configure the reinforcing body 12 with a hollow material. It is also possible to use a rod-like or plate-like metal as the reinforcing body 12. It is also possible to use a metal coated with a resin.

  The dispensing device 2 falls in either the front or back direction when the bag body 1 is bent and deformed, but the upper and lower sheets 3 and 4 are welded at their upper ends. Acts and a pulling force acts on the front sheet 3 when it falls back. That is, the front and back sheets 3 and 4 are in a relationship of restricting the bending to each other. Accordingly, the reinforcing body 12 exhibits a high reinforcing function only by being provided on one of the front and back sheets 3 and 4. It is also possible to provide a plurality of reinforcing bodies 12.

  Needless to say, the reinforcing body 12 can be provided close to the bottom sheet 5 (or so as to contact the bottom sheet 5). The required length of the reinforcing body 12 differs depending on the relationship between the weight of the pouring device 2 and the strength of the waist of the bag body 1, but in general, it should be at least 1/3 of the height dimension of the bag body 1. Although it can be said, it is preferably about half or more, more preferably 2/3 or more (this is the same in other embodiments). The reinforcing body 12 can be formed in an inverted Y shape when viewed from the front.

(3) Second to Third Embodiments FIG. 3 shows the second to third embodiments. Among these, 2nd Embodiment shown to (A) integrally forms the pair of reinforcement body 12 in the main body 6 of the extraction | pouring apparatus 2. As shown in FIG. In this embodiment, since the reinforcing body 12 is integral with the main body 6, it is possible to suppress the trouble of storing / managing and assembling the members.

  On the other hand, the reinforcing body 12 is retrofitted to the main body 6 in the third embodiment shown in (B) to (D). In this third embodiment, the upper and lower ends of the front and rear reinforcing bodies 12 are integrally connected via a ring body 15, while a boss portion 16 projects from the lower end of the main body 6. The boss part 16 is fitted so as not to come off. In this case, by forming flat surfaces 16 a and 15 a that overlap the outer periphery of the boss portion 16 and the inner periphery of the ring body 15, the posture is adjusted so that the reinforcing body 12 is always positioned on both the front and rear sides of the bag body 1. Can do.

  The ring body 15 may be fixed to the boss portion 16 by an interference fit, or may be held on the boss portion 16 so as not to fall off by an engaging means such as a combination of an engaging claw and an engaging hole. It is also possible to fit (insert) the ring body 15 into the main body 6.

(4). Fourth to Fifth Embodiments FIGS. 4A to 4C show a fourth embodiment. In this embodiment, the reinforcing bodies 12 are arranged on both the left and right sides of the area directly below the dispensing device 2. (B) shows the case where two reinforcing bodies 12 are welded to the front and back sheets 3 and 4, and (C) shows the case where one reinforcing body 12 is welded to the front and back sheets 3 and 4. it's shown. Even if only one reinforcing body 12 is provided on each of the front and back sheets 3 and 4 as shown in (C), the reinforcing function is higher than that when one reinforcing body 12 is provided on each of the left and right intermediate portions. It can be secured. It can be said that the distance L1 from the center line O of the bag body 1 to the reinforcing body 12 and the distance L2 from the reinforcing body 12 to the inner edge of the bag body may be approximately the same (of course, L1 and L2 are greatly different from each other). May be.) As shown in FIG. 2D, the upper end of the reinforcing body 12 can be sandwiched between the front and back sheets 1a and 1b.

  The arrangement position and the number of the reinforcing bodies 12 can be arbitrarily set. When two reinforcing bodies 12 are provided on the front and back sheets 3, 4, the reinforcing bodies 12 of the front sheet 3 and the reinforcing bodies of the back sheet 4 are provided. 12 can be shifted to the left or right, or two reinforcing bodies 12 can be provided on one of the front and back sheets 3, 4 and the other one reinforcing body 12 can be provided. It is also possible to provide three or more reinforcing bodies 12 on the front and back sheets 3 and 4.

  4, (D)-(F) arrange | position the pouring apparatus 2 in the state shifted to the one longitudinal side 1c of the bag body 1 among the upper end parts of the bag body 1. FIG. As a reinforcing means in this case, a bar-shaped (or plate-like) reinforcing body 12 is arranged in an area directly below the pouring device 2 as indicated by a dotted line, or an area directly below the pouring device 2 is indicated by an alternate long and short dash line. Various modes such as disposing the reinforcing body 12 between the center line O and arranging the sheet-like reinforcing body 12 across the area directly below the pouring device 2 and the center line O, etc. Can be adopted.

  (E) shows a case where the wide and sheet-like reinforcing body 12 is welded to the front and back sheets 3 and 4, and (F) shows a case where the sheet-like reinforcing body 12 is welded to the front sheet 3. it's shown. It is also possible to have both the sheet-like reinforcing body 12 and the rod-like reinforcing body 12.

(5). Sixth to ninth embodiments The embodiment shown in FIG. 5 is a type in which one upper corner portion in the bag body 1 is cut obliquely and the pouring device 2 is attached to the inclined upper corner portion 1e. Has been applied. Among these, in 6th Embodiment shown to (A), the reinforcement body 12 is the 1st part 12a extended up and down in the site | part which deviated slightly from the area directly under the extraction apparatus 2 to the other side 1c of the bag body, and the bag body 1. There are three parts, a second part 12b provided at a position offset to the other side 1d from the center line O and a third part 12c extending between the upper ends of the two parts, and each part can be arbitrarily selected.

  That is, only the first part 12a or the second part 12b is used, the first part 12a and the second part 12b are used, or the first part 12a and the third part 12c are used to form an inverted L type. Or an inverted L shape using the second part 12B and the third part 12c, or a U-shaped downward opening using three parts. The reinforcing body 12 may be provided on only one of the front and back sheets 3 and 4 or may be provided on both (this is the same in other embodiments).

  In 7th Embodiment shown to (B), the reinforcement body 12 is divided into two elements of the T-shaped part 12d shown with a dotted line, and the inclination part 12e extended toward the lower end part of the extraction | pouring apparatus 2 from the lower end. The three modes of adopting only the T-shaped portion 12, employing only the inclined portion 12e, and employing both the T-shaped portion 12 and the inclined portion 12e can be selected. The shape retaining property increases in the order of only the inclined portion 12e, only the T-shaped portion 12, and the combination of the T-shaped portion 12 and the inclined portion 12e.

  In 8th Embodiment shown to (C), the reinforcement body 12 is the inclination part extended toward the extraction | pouring apparatus 2 from the vertical part 12f located between the centerline O and the other side 1d of the bag body 1, and its lower end. It is formed in a substantially V shape when viewed from the front at 12 g. The vertical portion 12f and the inclined portion 12g may not be connected.

  In 9th Embodiment shown to (D), the reinforcement body 12 is formed in the dogleg shape with the inclination part 12h extended diagonally downward from the lower end vicinity of the extraction | pouring apparatus 2, and the vertical part 12i extended right below from the lower end. Yes. As indicated by the alternate long and short dash line, it is also possible to form a substantially Y shape by adding an inclined portion 12j opposite to the inclined portion 12h extending from the pouring device 2.

(6). Others The present invention can be embodied in various ways other than the above embodiment. In the case where the reinforcing body is manufactured separately from the main body of the pouring device and is retrofitted to the main body, the reinforcing body can be fixed to the main body by welding or adhesion. Moreover, the shape of a bag can be set arbitrarily. For example, it is possible to select that the upper part of the left and right side edges is cut obliquely and the upper end part is formed in a trapezoidal shape, or that it is formed in a bowl shape, an elliptical shape, or an approximate shape. There may be a form in which only one side of the left and right edges is cut obliquely.

  The dispensing device is not limited to the screw lid type, and various structures can be adopted depending on the application. For example, a hinge cap method or a lever method (spray method) can be employed.

  The present invention is applied to a pouch container and exhibits utility, and can be used in the container industry.

DESCRIPTION OF SYMBOLS 1 Bag body 2 Pouring device 3 Front sheet 4 Back sheet 5 Bottom sheet 6 Main body of pouring device 12 Reinforcing body

Claims (4)

It has a bag body in which a bottom sheet is provided at the lower end portion of the front and back sheets, and a pouring device attached to the upper end portion of the bag body, and either one or both inner surfaces of the front and back sheets In addition, a vertically long reinforcing body for preventing the bag body from being bent is provided so as to be positioned substantially directly below the pouring device.
A self-supporting pouch container. It has a bag body in which a bottom sheet is provided at the lower end portion of the front and back sheets, and a pouring device attached to the upper end portion of the bag body, and either one or both inner surfaces of the front and back sheets The upper and lower longitudinal reinforcing bodies for preventing the bag body from being bent are provided so as to be located on both sides or one side across the portion just below the pouring device,
A self-supporting pouch container. It consists of a bag body in which a bottom sheet is provided at the lower end of the front and back sheets, and a pouring device attached to the bag body, and the pouring device is biased toward one of the two left and right longitudinal side edges of the bag body. It is a pouch container that is arranged as follows,
An upper and lower longitudinal reinforcing body for preventing the bag body from being bent is disposed in a portion of the inner surface of the bag body that is closer to the other side of the bag body than the direct lower portion of the dispensing device.
A self-supporting pouch container. The reinforcing body is manufactured separately from the dispensing device, and the reinforcing body is welded to the inner surface of the bag body.
The pouch container according to any one of claims 1 to 3.

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