JP2013209098A - Method of discharging fluid and device for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid the generation of a residual liquid by guiding a way of crushing a containing bag for securing a flow passage for making an opening of the containing bag communicate with a lower part of the containing bag in the course of discharging a fluid, in a method of discharging the fluid by using a discharge means not putting air into the containing bag from above the containing bag with the fluid contained and equipped with at least a front surface member and a rear surface member.SOLUTION: In a method of discharging a fluid by using a discharge means not putting air into the containing bag from above the containing bag with the fluid contained and equipped with at least a front surface member and a rear surface member, a space between an inner wall of the front surface member and an inner wall of the rear surface member is widened by pressing the containing bag in a direction other than a thickness direction (direction orthogonal to a width direction and a height direction) of the containing bag by a shape regulation member provided on a part which is in contact with the containing bag.

Description

  The present invention relates to a method and an apparatus for discharging fluid using discharge means that does not allow air to enter the container from the upper part of a storage bag that stores various liquids and fluids such as viscous bodies as content liquids.

  Conventionally, a device that stores fluid such as beverages, foods, chemicals, pharmaceuticals, and detergents in a rigid container made of materials such as plastic, glass, and metal, and discharges an appropriate amount of fluid using a discharge means such as a pump is practical. It has become. In recent years, a storage bag using a sheet or film of a flexible material such as plastic instead of a rigid container has been put into practical use from the viewpoint of resource protection and environmental protection. Such a device connected to a pump that does not allow air to enter the containment bag prevents the content liquid from coming into contact with air, and therefore can suppress deterioration of the content liquid and propagation of germs, improving storage stability and hygiene. Excellent in terms.

  However, when the content liquid is sucked and discharged from the storage bag by a pump, the inside of the storage bag becomes negative pressure, and the inner walls facing each other of the storage bag are in close contact with each other, and the flow path may be blocked. For this reason, there is a problem that the content liquid cannot be discharged to the end and the remaining amount is generated.

  For this reason, an apparatus is disclosed in which a tube is suspended from an opening provided at the upper end of the accommodation bag to a lower portion in the accommodation bag (see, for example, Patent Document 1 below). However, the suction port of the tube is blocked by the inner wall of the housing bag, or the tube is bent, resulting in a problem that the remaining amount is generated.

  Moreover, the apparatus which reduces the obstruction | occlusion near an opening part by providing an opening part in the lower end part of an accommodation bag is disclosed (for example, refer patent document 2 below). However, when a push pump is used, a tube for communicating the discharge port disposed above from the opening of the storage bag disposed below the device must be installed, and the tube is accommodated in the device. Therefore, it is necessary to secure a space for the device, and it is difficult to save the space of the device. Further, when the storage bag is replaced, the opening that is the connection part with the pump faces downward, so that liquid leakage and dripping due to the residual liquid in the vicinity of the opening tends to occur, which is not preferable for hygiene purposes.

  An apparatus is also disclosed in which a rib member for securing a fluid passage is attached to the containing bag. (For example, refer to Patent Document 3 below). However, it is necessary to affix the rib member to the conventional storage bag, and there is a problem that the manufacturing cost increases. Because storage bags are often used to store consumables such as beverages, foods, chemicals, pharmaceuticals, and detergents, they are strongly demanded to be inexpensive and the high manufacturing costs cannot be ignored. .

JP 2011-77121 A Japanese Patent Laid-Open No. 2002-2895 JP 2012-25420 A

  The present invention has been made in view of such a situation of the prior art, and discharge means that does not allow air to enter the housing bag from the upper portion of the housing bag provided with at least the front surface member and the back surface member in which the fluid is stored. In the method of discharging a fluid using a container, in the discharging process, by preventing the generation of residual liquid by guiding the way of collapse of the storage bag that secures a flow path that connects the opening of the storage bag and the lower portion of the storage bag Is an issue.

As a result of intensive studies to solve the above problems, the present inventors have found that the fluid ejection method according to the present invention is:
In a method of discharging fluid using discharge means that does not allow air to enter the storage bag from the upper part of the storage bag having a flat horizontal cross section including at least a front surface member and a back surface member in which the fluid is stored,
By pressing the storage bag in a direction other than the thickness direction of the storage bag (the direction perpendicular to the width direction and the height direction) by the shape regulating member provided at a location in contact with the storage bag, A fluid ejection method comprising separating an interval between an inner wall and an inner wall of the back member facing the inner wall.

  According to this, in the method of discharging the fluid using the discharge means that does not allow air to enter the storage bag from the upper part of the storage bag including at least the front surface member and the back surface member in which the fluid is stored, the fluid comes into contact with the storage bag. The opening portion of the storage bag in the fluid discharge process by pressing the storage bag in a direction other than the thickness direction of the storage bag (the direction perpendicular to the width direction and the height direction) by the shape regulating member provided at the location The generation of the residual liquid can be prevented by guiding the collapse of the storage bag that secures a flow passage communicating with the lower part of the storage bag.

  Moreover, the fluid discharge method which presses the height direction and / or the width direction of the said accommodation bag by the said shape control member may be sufficient.

  According to this, the opening member is pushed inward of the storage bag, and in the fluid discharge process, the collapse method of the storage bag that secures the flow path that connects the opening of the storage bag and the lower portion of the storage bag can be guided. it can.

  The storage bag may be a fluid discharge method including a front surface member and a back surface member, and a bottom member folded in half to be inserted between and sealed from a lower edge portion to form a bottom surface.

  According to this, a conventional standing pouch can be adopted, and the manufacturing cost can be suppressed.

A storage bag having a flat horizontal cross section including at least a front surface member and a back surface member in which a fluid is stored;
Discharging means for discharging fluid without putting air into the containing bag from the upper part of the containing bag;
A shape regulating member provided at a location in contact with the containing bag;
A fluid ejection device comprising:
The inner wall of the back member facing the inner wall of the front member by pressing the containing bag in a direction other than the thickness direction of the containing bag (the direction perpendicular to the width direction and the height direction) by the shape regulating member. A fluid ejection device characterized by separating the distance from the fluid.

  According to this, in the fluid discharge device, in the process of discharging the fluid, the generation of residual liquid by guiding the collapse of the storage bag that secures a flow path that communicates the opening of the storage bag and the lower portion of the storage bag. Can be provided by a simple configuration.

  According to the present invention, in a method of discharging fluid using discharge means that does not allow air to enter the storage bag from the upper part of the storage bag that includes at least the front surface member and the back surface member in which the fluid is stored, It is possible to provide a simple configuration to prevent the generation of residual liquid by guiding the collapse of the storage bag that secures a flow path that communicates the opening of the storage bag and the lower portion of the storage bag.

It is a figure for demonstrating the fluid discharge apparatus of 1st Embodiment. It is a front view of the accommodation bag of a 1st embodiment. It is the side view and horizontal sectional view of a storage bag for demonstrating the discharge process of 1st Embodiment. It is a figure for demonstrating the fluid discharge apparatus of 2nd Embodiment. It is a figure for demonstrating the shape control member of 2nd Embodiment. It is the front view and horizontal sectional view of a storage bag for demonstrating the discharge process of 2nd Embodiment.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below with reference to the drawings. Here, the left-right direction in FIG. 2 is the width direction of the containing bag, the up-down direction is the height direction, and the front-rear direction is the thickness direction.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS.

  The fluid ejection device according to the first embodiment includes a storage bag 1, a shape regulating member 3, and ejection means (not shown). The storage bag 1 is composed of a flexible film or sheet, and stores a fluid such as a liquid or a viscous material. As shown in FIG. 2, the storage bag 1 includes a main surface member 12 composed of a front surface member 12a and a back surface member 12b, and a bottom surface member 13 that is folded inward from the lower end portion thereof to form a bottom surface. The main surface member 12 is overlaid so that the sealant layers of the front surface member 12a and the back surface member 12b face each other. The bottom surface member 13 is folded in two so that the sealant surface faces the sealant surface of the main surface member 12, and is inserted between the front surface member 12a and the back surface member 12b from the lower end portion of the main surface member 12. When the periphery of the main surface member 12 is heat-sealed and the fluid is accommodated, the bottom surface member 13 is developed to form the bottom surface.

  An opening member 2 is provided at the upper end of the containing bag 1. The opening member 2 has a through passage communicating with the inside and outside of the housing bag 1 in the axial direction. The lower half portion has a boat-shaped seal portion that is heat-sealed with the main surface member 12, and the upper half portion is provided with a flange portion composed of a flange on the disk and a cylindrical portion, for suspending and fixing the containing bag 1 Used when. Moreover, the opening member 2 has a connection mechanism that can be attached to and detached from the discharge means and the tube communicating with the discharge means. Furthermore, the opening member 2 having a reseal mechanism is preferable. Examples of the detachable connection mechanism and the reseal mechanism include connectors disclosed in JP-T-2001-511416.

  The opening member 2 is connected to a pump as discharge means (not shown). The pump does not allow air to enter the containing bag 1. The pump may be directly connected to the opening member 2 or may be via a tube or other member, and the connection method is not particularly limited.

  A shape regulating member 3 is provided at a location in contact with the containing bag 1 containing the fluid. The shape regulating member 3 is provided at the base of the fluid ejection device, and is formed from a material that is more rigid than the containing bag 1. A first restricting portion 31 that comes into contact with and presses the lower end portion of the containing bag 1 and a second restricting portion 32 that comes into contact with and presses the upper end portion of the containing bag 1 and / or the opening member 2 are provided. Before the fluid is discharged, the interval between the first restricting portion 31 and the second restricting portion 32 is arranged so as to be shorter than the height from the lower end portion to the upper end portion of the containing bag 1 containing the fluid. ing. The containing bag 1 may be inserted between the first restricting portion 31 and the second restricting portion 32 from the horizontal direction, or after the containing bag 1 is arranged at a predetermined position, the first restricting portion 31 and the second restricting portion 32. It may be of a mechanism that reduces the interval between Further, the second restricting member 32 may be provided with a notch so that the flange portion of the opening member 2 can be inserted.

  As shown in FIG. 1, the shape regulating member 3 is arranged in a state in which the upper end portion and the lower end portion of the containing bag 1 are pressed in the height direction before the fluid is discharged. By the shape regulating member 3, the opening member 2 is pushed downward (inside the containing bag 1). As shown in FIG. 3A, the cross-sectional shape is a substantially rectangular shape in which both end portions approach each other from the boat-shaped shape before pressing, and the interval between the inner walls of the front surface member 12a and the back surface member 12b is significantly separated.

  Next, the state of the containing bag 1 in the discharging process will be described. When the fluid is discharged using the pump, the inside of the bag becomes negative pressure, and as shown in FIG. 3B, first, the bottom surface member 13 starts to be folded and the intermediate portion in the width direction of the main surface member 12 is contracted. . When the ejection is further continued, as shown in FIG. 3C, the central portion in the width direction of the main surface member 12 is in close contact with the middle in the height direction. However, a flow passage having a substantially triangular cross section is formed on both sides of the axis of the opening member 2. The flow passage communicates from the bottom of the containing bag 1 to the through-passage of the opening member 2, and can discharge fluid to the end and prevent the generation of residual liquid.

  Prior to discharging the fluid in the storage bag 1, the through-passage of the opening member 2 of the storage bag 1 and the lower part of the storage bag 1 in the discharge process can be performed only by pressing the storage bag 1 in the height direction by the shape regulating member 3. It is possible to guide the way in which the storage bag 1 that secures the flow passage communicating with the container is crushed, and to prevent the generation of residual liquid.

<Second Embodiment>
Next, a second embodiment of the gusset bag according to the present invention will be described with reference to FIGS. In the following description, a configuration different from that of the first embodiment will be described, and the same configuration is denoted by the same reference numeral, and the description thereof is omitted.

  As shown in FIG. 4, the accommodation bag 1 is accommodated in an exterior body 4 that is more rigid than the accommodation bag 1. The exterior body 4 is substantially rectangular and has a bottom surface and a top surface, and an opening 401 for inserting the containing bag 1 is provided in front of the peripheral wall. The top surface is provided with a notch 402 from the side of the peripheral wall having the opening, and the flange portion of the opening member 2 is inserted to assist the fixing of the containing bag 1. Since the interval between the inner walls 41, 42 facing the width direction of the peripheral wall of the exterior body 4 is made shorter than the width of the storage bag 1, the side edge of the storage bag 1 is formed by the inner wall of the peripheral wall of the exterior body 4. It will be in the state pressed in the direction which narrows a width | variety. As shown in FIG. 5A, the opening member 2 is pushed downward (inside the containing bag 1) as the left and right side portions of the containing bag 1 are pressed. As shown in FIG. 6A, the cross-sectional shape is a substantially rectangular shape in which both side end portions approach each other from the boat-shaped shape before pressing, and the interval between the inner walls of the front surface member 12a and the back surface member 12b is significantly separated. The inner walls 41 and 42 facing in the width direction of the peripheral wall of the exterior body 4 act as a shape regulating member.

  Next, the state of the containing bag 1 in the discharging process will be described. When the discharge means is connected to the opening member 2 and fluid is discharged, the inside of the bag becomes negative pressure, and as shown in FIG. 6B, first, the bottom surface member 13 starts to be folded, and the width direction of the main surface member 12 The middle part shrinks. When the discharge is further continued, as shown in FIG. 6C, the central portion in the width direction of the main surface member 12 is in close contact with the middle in the height direction. However, a flow passage having a substantially triangular cross section is formed on both sides of the axis of the opening member 2. The flow passage communicates from the bottom of the containing bag 1 to the through-passage of the opening member 2, and can discharge fluid to the end and prevent the generation of residual liquid.

  Before the fluid in the storage bag 1 is discharged, the through-passage of the opening member 2 of the storage bag 1 and the lower part of the storage bag 1 in the discharge process are only pressed by the shape regulating member 3 in the width direction. It is possible to guide the way the container bag 1 is crushed to secure a flow passage that communicates with each other, thereby preventing the generation of residual liquid.

  In the above-described embodiment, the case where the peripheral wall of the exterior body 4 is provided with the opening 401 has been described. However, the exterior body 4 may have an opening on the top surface, and the housing bag 1 may be accommodated in the exterior body 4 from above. In the above embodiment, the exterior body 4 has been described as having a substantially rectangular shape, but the horizontal cross-sectional shape may be circular or elliptical, and is not particularly limited.

  In the above embodiment, the inner wall of the peripheral wall of the exterior body 4 acts as the shape regulating member 3. However, in the first embodiment, the bottom surface of the exterior body 4 and the inner wall of the top surface act as the shape regulating member 3. There may be.

  In each of the embodiments described above, what is pressed from the height direction and the width direction of the storage bag 1 has been described. However, the pressing direction is not limited to the embodiment, and the thickness direction of the storage bag 1 (the width direction and the height direction). Any direction other than (a direction orthogonal to) may be used.

  In each said embodiment, the accommodation bag 1 demonstrated what comprised the main surface member 12 and the bottom face member 13 in three separate members. However, it is not limited to the embodiment, and may be configured by one, two, four or more members.

  In the above embodiments, the standing pouch has been described. However, a flat pouch such as a three-side seal, a four-side seal, and a center seal having the front surface member 12a and the back surface member 12b may be used.

DESCRIPTION OF SYMBOLS 1 Storage bag 12 Main surface member 12a Front surface member 12b Back surface member 13 Bottom surface member 2 Opening member 3 Shape control member 4 Exterior body

Claims (4)

In a method of discharging fluid using discharge means that does not allow air to enter the storage bag from the upper part of the storage bag having a flat horizontal cross section including at least a front surface member and a back surface member in which the fluid is stored,
By pressing the storage bag in a direction other than the thickness direction of the storage bag (the direction perpendicular to the width direction and the height direction) by the shape regulating member provided at a location in contact with the storage bag, A fluid ejection method comprising separating an interval between an inner wall and an inner wall of the back member facing the inner wall.   The fluid ejection method according to claim 1, wherein the shape regulating member is pressed in a height direction and / or a width direction of the containing bag.   The said accommodation bag is equipped with the surface member and the back surface member, and the bottom member folded in half which is inserted and sealed from the lower edge part between them, and forms a bottom face, The one of Claim 1 to 2 characterized by the above-mentioned. The fluid discharge method described in 1. A storage bag having a flat horizontal cross section including at least a front surface member and a back surface member in which a fluid is stored;
Discharging means for discharging fluid without putting air into the containing bag from the upper part of the containing bag;
A shape regulating member provided at a location in contact with the containing bag;
A fluid ejection device comprising:
The inner wall of the back member facing the inner wall of the front member by pressing the containing bag in a direction other than the thickness direction of the containing bag (the direction perpendicular to the width direction and the height direction) by the shape regulating member. A fluid ejection device characterized by separating the distance from the fluid.

Images