Discharge system

Abstract

To provide a discharge system that can suppress re-winding of an inner bag that contains a fluid.SOLUTION: The discharge system includes an inner bag that contains a fluid, a frame body that is disposed outside the side periphery of the inner bag, and a squeezing mechanism that is disposed at the upper end of the frame body. The squeezing mechanism includes a pair of rollers that clamp the upper side of the inner bag when the inner bag is disposed inside the frame body. With the inner bag clamped between the pair of rollers, the squeezing mechanism pulls the inner bag upward with the pair of rollers.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to exhaust systems. [Background technology]

[0002] Conventionally, a discharge system for discharging a highly viscous fluid from an inner bag that contains the fluid has been known. Specifically, the discharge system includes an inner bag that contains the fluid, a container that contains the inner bag, a pair of rollers that are disposed on the sidewall of the container, and a drive device that drives the pair of rollers.

[0003] When the inner bag is placed in the container, a discharge port is provided at the bottom end of the inner bag for discharging the fluid, and a pair of rollers are disposed above the inner bag to sandwich the inner bag. As the fluid in the inner bag is discharged through the discharge port (i.e., as the fluid in the inner bag decreases), a drive device moves the pair of rollers downward (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. 2018 / 028451 Brochure Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned discharge system, the pair of rollers are placed on the top surface of the inner bag, which can cause the inclination of the pair of rollers to become unstable, and there is a possibility that part of the inner bag rolled up by the pair of rollers may become caught in the pair of rollers.

[0006] Therefore, the present disclosure has been made to solve the above-mentioned problems, and aims to provide an exhaust system that can suppress re-entanglement of an inner bag that contains a fluid. [Means for solving the problem]

[0007] The disclosed aspect is a discharge system comprising an inner bag for containing a fluid, a frame body arranged outside the side periphery of the inner bag, and a squeezing mechanism arranged at the upper end of the frame body, wherein the squeezing mechanism includes a pair of rollers that clamp the upper side of the inner bag while the inner bag is arranged inside the frame body, and the squeezing mechanism pulls the inner bag upward with the pair of rollers clamping the inner bag. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a discharge system that can suppress re-entanglement of an inner bag that contains a fluid. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing an exhaust system 100 according to an embodiment. [Figure 2] FIG. 2 is a diagram showing an exhaust system 100 according to an embodiment. [Figure 3] FIG. 3 is a diagram showing an exhaust system 100 according to an embodiment. [Figure 4] FIG. 4 is a diagram showing bottom surface 120B of outer bag 120 according to this embodiment. [Figure 5] FIG. 5 is a diagram showing the bottom surface 130B of the inner bag 130 according to the embodiment. [Figure 6] FIG. 6 is a diagram illustrating an example of operation according to the embodiment. [Figure 7] FIG. 7 is a diagram illustrating an example of operation according to the embodiment. [Figure 8] FIG. 8 is a diagram for explaining the first modification. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratios of the dimensions may differ from those of the actual product.

[0011] Therefore, specific dimensions should be determined with reference to the following explanation. Of course, the dimensional relationships and ratios may differ between the drawings.

[0012] [Disclosure Summary] The discharge system according to the summary of the disclosure comprises an inner bag for containing a fluid, a frame body arranged on the outside of the side periphery of the inner bag, and a squeezing mechanism arranged at the upper end of the frame body, the squeezing mechanism including a pair of rollers that clamp the upper side of the inner bag when the inner bag is arranged inside the frame body, and the squeezing mechanism pulls the inner bag upward with the pair of rollers while the pair of rollers clamp the inner bag.

[0013] In the summary of the disclosure, a squeezing mechanism including a pair of rollers is disposed at the upper end of the frame, and the squeezing mechanism uses the pair of rollers to pull the inner bag upward while sandwiching the inner bag between them. With this configuration, the pair of rollers are not disposed on the upper surface of the inner bag, and the inclination of the pair of rollers is stabilized, making it possible to prevent the inner bag containing the fluid from being re-entangled.

[0014] [Embodiment] (Exhaust system) The discharge system 100 according to the embodiment will be described below. Figures 1 to 3 are diagrams showing the discharge system 100 according to the embodiment.

[0015] In the following description, the width direction is the X direction, the depth direction is the Y direction, and the height direction is the Z direction. Fig. 2 is a cross section taken along the Y direction at the center of the X direction in Fig. 1, and a portion of a frame body 110, which will be described later, is additionally shown. Fig. 3 is a cross section taken along the X direction at the center of the Y direction in Fig. 1, and a portion of a frame body 110, which will be described later, is additionally shown. Note that an inner bag 130 and a constriction mechanism 140, which will be described later, are omitted from Fig. 1.

[0016] As shown in FIGS. 1 to 3, the discharge system 100 includes a frame 110, an outer bag 120, an inner bag 130, and a squeezing mechanism 140. The outer bag 120 has a cylindrical shape.

[0017] The frame body 110 has a support 111, a suspension member 112, and a suspension member 113. The frame body 110 is disposed outside the side periphery of the inner bag 130. In an embodiment, the frame body 110 is disposed outside the side periphery of the outer bag 120.

[0018] The support pillar 111 has a shape that extends along the vertical direction. The support pillar 111 may be made of a member having enough strength to support the outer bag 120, the inner bag 130 that contains the fluid, and the throttle mechanism 140. For example, the support pillar 111 may be made of steel.

[0019] Although not particularly limited, four support columns 111 may be provided as support columns 111. However, the number of support columns 111 may be three, or may be five or more.

[0020] The suspension members 112 have a shape that extends along the horizontal direction. The suspension members 112 are members that are fixed to adjacent support columns 111 above the support columns 111. The suspension members 112 only need to have the strength to maintain the shape of the frame body 110. The suspension members 112 only need to be made of a member that has the strength to support the throttle mechanism 140. For example, the suspension members 112 may be made of steel, similar to the support columns 111.

[0021] Although not particularly limited, when four support columns 111 are provided as the support columns 111, four suspension members 112 may be provided as the suspension members 112. That is, one pair of suspension members 112 may be provided along the X direction and one pair of suspension members 112 may be provided along the Y direction. However, the number of suspension members 112 may be three, five or more, in accordance with the number of support columns 111.

[0022] The suspension members 113 have a shape that extends horizontally. The suspension members 113 are fixed to adjacent columns 111 below the columns 111. The suspension members 113 only need to have the strength to maintain the shape of the frame 110. For example, the suspension members 113 may be made of steel, similar to the columns 111.

[0023] Although not particularly limited, when four support columns 111 are provided as the support columns 111, four suspension members 113 may be provided as the suspension members 113. That is, one pair of suspension members 113 may be provided along the X direction and one pair of suspension members 113 may be provided along the Y direction. However, the number of suspension members 113 may be three, five or more, in accordance with the number of support columns 111.

[0024] In addition to the suspension members 113, the frame 110 may have suspension members (central suspension members) fixed to adjacent columns 111 at the center of the columns 111 in the vertical direction. Alternatively, instead of the suspension members 113, the frame 110 may have suspension members (central suspension members) fixed to adjacent columns 111 at the center of the columns 111 in the vertical direction. The number of central suspension members in the vertical direction may be one or two or more.

[0025] The outer bag 120 is disposed inside the space formed by the frame 110. The outer bag 120 has a shape with an opening facing upward, and houses the inner bag 130 filled with a fluid. Although not particularly limited, the outer bag 120 may have the same shape as the space formed by the frame 110. For example, when four support columns 111 are provided as the support columns 111, the outer bag 120 may have a rectangular parallelepiped or cubic shape. The outer bag 120 only needs to have the strength to support the inner bag 130 filled with a fluid. For example, the outer bag 120 may be made of polypropylene.

[0026] The outer bag 120 may be a reusable member. Reusability may mean that the outer bag 120 can be reused without being discarded even after the fluid contained in the inner bag 130 has been completely drained. However, the outer bag 120 may be replaced a predetermined number of times (e.g., 20 times) when the operation of completely draining the fluid contained in the inner bag 130 is counted as one operation.

[0027] Outer bag 120 has outer bag through opening 121. Outer bag through opening 121 is an opening through which tubular member 160 passes to discharge fluid contained in inner bag 130. Outer bag through opening 121 does not have to be fixed to tubular member 160. Outer bag through opening 121 does not have to be fixed to inner bag discharge opening 131, which will be described later.

[0028] 4, outer bag through-hole 121 is provided in central region C of bottom surface 120B of outer bag 120 when outer bag 120 is placed inside frame body 110. Note that FIG. 4 is a view of outer bag 120 as viewed from above when outer bag 120 is placed inside frame body 110.

[0029] Here, the distance from the center P of the bottom surface 120B to the central region C in the X direction may be within a range of Xa or less. The distance Xa may be 1 / 2 or 3 / 4 of the distance Xb between the center P of the bottom surface 120B and the edge of the bottom surface 120B. Similarly, the distance from the center P of the bottom surface 120B to the center P of the bottom surface 120B in the Y direction may be within a range of Ya or less. The distance Ya may be 1 / 2 or 3 / 4 of the distance Yb ​​between the center P of the bottom surface 120B and the edge of the bottom surface 120B.

[0030] The inner bag 130 is disposed inside the space formed by the frame body 110. The inner bag 130 contains a fluid and is housed in the outer bag 120. The fluid may be a highly viscous fluid having a viscosity equal to or higher than a predetermined value. Although not particularly limited, the inner bag 130 may have a shape similar to the shape of the space formed by the frame body 110 or the outer bag 120. For example, when four support columns 111 are provided, the inner bag 130 may have a rectangular parallelepiped or cubic shape. The inner bag 130 only needs to have the strength to support the fluid. For example, the inner bag 130 may be made of polyethylene.

[0031] The inner bag 130 may have a cylindrical shape with at least a bottom surface, rather than a pillow shape formed by bonding the outer peripheries of two sheets. The outer shape of the inner bag 130 may be similar to the outer shape of the outer bag 120, for example, a shape similar to the outer shape of the outer bag 120. In other words, the inner bag 130 may have a shape that allows it to be accommodated in the outer bag 120 without being folded inside the outer bag 120. The inner bag 130 may be a component dedicated to the discharge system 100 (outer bag 120) described above.

[0032] The inner bag 130 may be a disposable member, which may mean that the inner bag 130 is discarded when the fluid contained therein is drained away.

[0033] Inner bag 130 has inner bag discharge port 131 to which tubular member 160 for discharging fluid is attached. Inner bag discharge port 131 may have a connector shape to which one end of tubular member 160 can be attached. Inner bag 130 has filling port 132 for filling with fluid. Filling port 132 may have a cap to prevent leakage of the fluid filled in inner bag 130.

[0034] 5, inner bag discharge outlet 131 is provided in central region C of bottom surface 130B of inner bag 130 when inner bag 130 is placed inside frame body 110. Note that FIG. 4 is a view of inner bag 130 as viewed from above when inner bag 130 is placed inside frame body 110.

[0035] Here, the distance from the center P of the bottom surface 130B to the central region C in the X direction may be within a range of Xa or less. The distance Xa may be ½ or ¾ of the distance Xb between the center P of the bottom surface 130B and the edge of the bottom surface 130B. Similarly, the distance from the center P of the bottom surface 130B to the center P of the bottom surface 130B in the Y direction may be within a range of Ya or less. The distance Ya may be ½ or ¾ of the distance Yb ​​between the center P of the bottom surface 130B and the edge of the bottom surface 130B.

[0036] The diaphragm mechanism 140 is disposed at the upper end of the frame 110. In the embodiment, the diaphragm mechanism 140 is disposed on a pair of opposing suspension members 112 so as to straddle the pair of suspension members 112. Although not particularly limited, the diaphragm mechanism 140 may have a shape along the X direction and be disposed on a pair of suspension members 112 along the Y direction.

[0037] The throttle mechanism 140 includes a pair of rollers 141 (roller 141A and roller 141B) and a drive mechanism 142.

[0038] The pair of rollers 141 are rollers that sandwich the upper side of inner bag 130 when inner bag 130 is placed inside frame body 110. The pair of rollers 141 may be made of an elastic material such as rubber. When driven by drive mechanism 142, pair of rollers 141 pulls inner bag 130 placed inside frame body 110 upward.

[0039] Drive mechanism 142 drives the pair of rollers 141. Drive mechanism 142 may have a battery that supplies power to drive the pair of rollers 141. However, the power to drive the pair of rollers 141 may be supplied to drive mechanism 142 from an external power source. Drive mechanism 142 may generate not only a drive force that causes the pair of rollers 141 to pull inner bag 130 upward, but also a drive force that causes the pair of rollers 141 to press inner bag 130 downward.

[0040] As described above, the squeezing mechanism 140, with the pair of rollers sandwiching the inner bag 130, pulls the inner bag upward with the pair of rollers 141. By this operation, the squeezing mechanism 140 squeezes the inner bag 130, thereby discharging the fluid from the tubular member 160 attached to the inner bag discharge port 131.

[0041] Furthermore, as shown in FIG. 2, the exhaust system 100 may have a bracket 190 on which the throttle mechanism 140 is placed. The bracket 190 may have a concave shape that stably supports the throttle mechanism 140. Although not particularly limited, the bracket 190 may have a shape that follows the X direction and be disposed on a pair of suspension members 112 that follow the Y direction. The bracket 190 may be fixed to the pair of suspension members 112. Note that in cases where the throttle mechanism 140 can be stably disposed on the pair of suspension members 112, the bracket 190 may be omitted.

[0042] (Example of operation) An example of operation according to the embodiment will be described below. Figures 6 and 7 are diagrams showing an example of operation according to the embodiment.

[0043] As shown in FIGS. 6 and 7, inner bag 130 contains a fluid, and the fluid contained in inner bag 130 is discharged from tubular member 160 attached to inner bag discharge port 131.

[0044] Under such a premise, when the remaining amount of fluid contained in the inner bag 130 falls below a predetermined remaining amount, the throttle mechanism 140 may pull the inner bag 130 upward using a pair of rollers 141 while the pair of rollers 141 is clamping the inner bag 130.

[0045] For example, as shown in FIG. 6, when the filling rate of the fluid contained in the inner bag 130 is higher than a predetermined filling rate, the fluid may be discharged from the tubular member 160 by its own weight without driving the pair of rollers 141.

[0046] On the other hand, as shown in FIG. 7, when the filling rate of the fluid contained in the inner bag 130 is lower than a predetermined filling rate, the fluid may be discharged from the tubular member 160 by driving a pair of rollers 141.

[0047] 7, outer bag through opening 121 of outer bag 120 does not have to be fixed to inner bag discharge opening 131 of inner bag 130 and tubular member 160. In other words, outer bag 120 may accommodate inner bag 130 in a state where outer bag through opening 121 is not fixed to inner bag discharge opening 131.

[0048] Here, the predetermined filling rate may be determined according to the capacity of the wringing mechanism 140 (pair of rollers 141). The capacity may be the capacity to pull up the inner bag 130 containing the fluid (for example, the maximum torque of the pair of rollers 141). For example, if the wringing mechanism 140 (pair of rollers 141) can pull up an object weighing 50 kg, and if the initial weight of the inner bag 130 containing the fluid is 500 kg, the predetermined filling rate may be 10%, and if the initial weight of the inner bag 130 containing the fluid is 1,000 kg, the predetermined filling rate may be 5%.

[0049] In the operational example, a case has been described in which the predetermined remaining amount is expressed by a predetermined filling rate, but the predetermined remaining amount may also be expressed by a predetermined weight. For example, if the weight of inner bag 130 containing the fluid is greater than a predetermined weight, the fluid may be discharged from tubular member 160 by its own weight without driving pair of rollers 141. On the other hand, if the weight of inner bag 130 containing the fluid is less than the predetermined weight, the fluid may be discharged from tubular member 160 by driving pair of rollers 141.

[0050] (Action and effect) In the embodiment, inner bag 130 is rolled up by a pair of rollers 141, so that the amount of fluid that may remain in inner bag 130 can be reduced, and economic losses associated with remaining fluid can be suppressed.

[0051] In the embodiment, squeezing mechanism 140 including a pair of rollers 141 is disposed at the upper end of frame 110, and squeezing mechanism 140 uses pair of rollers 141 to pull inner bag 130 upward while sandwiching inner bag 130 between them. With this configuration, pair of rollers 141 is not disposed on the upper surface of inner bag 130, and the inclination of pair of rollers 141 is stable, making it possible to prevent inner bag 130 containing a fluid from being re-entangled.

[0052] In the embodiment, the wringing mechanism 140 including the pair of rollers 141 remains disposed at the upper end of the frame 110, and the wringing mechanism 140 does not descend due to a decrease in the fluid contained in the inner bag 130. Therefore, when the fluid contained in the inner bag 130 is completely discharged and the inner bag 130 is to be replaced, the operation of lifting the wringing mechanism 140 is not necessary, and the inner bag 130 can be easily replaced.

[0053] In the embodiment, the wringing mechanism 140 including the pair of rollers 141 remains disposed at the upper end of the frame 110, stabilizing the position and inclination of the wringing mechanism 140. Therefore, compared to the conventional technology in which the pair of rollers descends, the final remaining amount of fluid can be kept constant when the fluid contained in the inner bag 130 has been completely discharged.

[0054] In the embodiment, squeezing mechanism 140 including a pair of rollers 141 remains disposed at the upper end of frame body 110, and frame body 110 has a framework structure formed by support posts 111, suspension members 112 and 113, etc. Therefore, compared to conventional technology in which a pair of rollers descends, it is easier to check the remaining amount of fluid contained in inner bag 130.

[0055] In an embodiment, when the remaining amount of fluid contained in the inner bag 130 falls below a predetermined remaining amount, the throttle mechanism 140 may pull the inner bag 130 upward with the pair of rollers 141 while sandwiching the inner bag 130. With this configuration, damage to the throttle mechanism 140 due to an overload on the throttle mechanism 140 (the pair of rollers 141) can be suppressed.

[0056] In an embodiment, the outer shape of inner bag 130 may have a shape similar to the outer shape of outer bag 120. With this configuration, inner bag 130 is not bent within outer bag 120, and inner bag 130 is not pinched between the pair of folded rollers 141, so that overload on the pair of rollers 141 that roll up inner bag 130 can be suppressed.

[0057] [Change Example 1] Modification 1 of the embodiment will be described below, focusing mainly on the differences from the embodiment.

[0058] In Modification 1, as shown in Fig. 8, the pair of rollers 141 (roller 141A and roller 141B) may have a tapered shape. Specifically, roller 141A may have a tapered shape in which the diameter decreases from one end to the other in the longitudinal direction of roller 141A. Similarly, roller 141B may have a tapered shape in which the diameter decreases from one end to the other in the longitudinal direction of roller 141B. With this configuration, a gap is formed between roller 141A and roller 141B, and therefore, when inner bag 130 is pulled up by the pair of rollers 141, unnecessary air inside inner bag 130 can be discharged through the gap.

[0059] In the first modification, it is sufficient that at least a portion of roller 141A has a tapered shape in the longitudinal direction of roller 141A. Similarly, it is sufficient that at least a portion of roller 141B has a tapered shape in the longitudinal direction of roller 141B.

[0060] In the first modification, at least one of the rollers 141A and 141B may have a tapered shape.

[0061] [Other embodiments] Although the present invention has been described by the above-mentioned embodiments, the descriptions and drawings that form part of this disclosure should not be understood to limit the present invention. From this disclosure, various alternative embodiments, examples, and operating techniques will become apparent to those skilled in the art.

[0062] Although not specifically mentioned in the above disclosure, a portion of the inner bag 130 may protrude outside the frame body 110. Similarly, a portion of the outer bag 120 may protrude outside the frame body 110.

[0063] In the above disclosure, a gap exists between the outer bag 120 and the inner bag 130 (e.g., Figures 2, 3, 6, etc.). However, such a gap does not have to exist. For example, a gap may not exist between the outer bag 120 and the inner bag 130 due to the load of the fluid contained in the inner bag 130. In other words, the bottom and side surfaces of the inner bag 130 may be in close contact with the bottom and side surfaces of the outer bag 120.

[0064] In the above disclosure, the bottom surface 120B of the outer bag 120 and the bottom surface 130B of the inner bag 130 have a rectangular shape. However, the above disclosure is not limited thereto. The bottom surface 120B of the outer bag 120 and the bottom surface 130B of the inner bag 130 may have a square shape.

[0065] Although not specifically mentioned in the above disclosure, when the inner bag 130 is made of a flexible material, the bottom surface of the inner bag 130 may be rounded with a convex shape on the downward side due to the load of the fluid contained in the inner bag 130.

[0066] Although not specifically mentioned in the above disclosure, the support columns 111, the suspension members 112, and the suspension members 113 may be removable. In such a case, the support columns 111 and the suspension members 112 may be retractable into the suspension members 113.

[0067] Although not specifically mentioned in the above disclosure, the frame 110 may have rib members that straddle a pair of adjacent suspension members 113. For example, when the suspension members 113 form a rectangular shape, the rib members may be arranged at the four corners of the rectangular shape. The rib members may be able to be supported by the forks of a forklift used to transport the discharge system 100 (or just the frame 110).

[0068] Although not specifically mentioned in the above disclosure, when inner bag 130 contains a fluid, there may be almost no air inside inner bag 130. In other words, the inside of inner bag 130 sandwiched between pair of rollers 141 may be filled with fluid. The pair of rollers 141 may also serve to discharge air inside inner bag 130 (air vent).

[0069] In the above disclosure, a case in which the inner bag 130 is a disposable material has been exemplified. However, the above disclosure is not limited to this. The inner bag 130 may be a reusable material. In such a case, the number of times the inner bag 130 can be used may be fewer than the number of times the outer bag 120 can be used. In other words, the strength of the material that makes up the outer bag 120 may be greater than the strength of the material that makes up the inner bag 130.

[0070] In the above disclosure, the frame 110 has a framework structure including the support 111, the suspension member 112, and the suspension member 113. However, the above disclosure is not limited to this. The frame 110 may be a box-shaped container having an opening facing upward. In such a case, the discharge system 100 may not have the outer bag 120. The container may have a through-hole corresponding to the outer bag through-hole 121 of the outer bag 120.

[0071] In the above disclosure, the case where the diaphragm mechanism 140 (the pair of rollers 141) is arranged along the X direction (width direction) has been exemplified. However, the above disclosure is not limited to this. The diaphragm mechanism 140 (the pair of rollers 141) may be arranged along the Y direction (depth direction).

[0072] Although not specifically mentioned in the above disclosure, the squeezing mechanism 140 may have a sensor that detects when the remaining amount of fluid contained in the inner bag 130 reaches a predetermined remaining amount. The squeezing mechanism 140 may have a function of notifying the user that the inner bag 130 can be pulled up when the remaining amount of fluid reaches the predetermined remaining amount. The notification to the user may be by lighting a lamp such as an LED, or by outputting a notification sound or the like. The squeezing mechanism 140 may inhibit the pair of rollers 141 so that the inner bag 130 cannot be pulled up when the fluid filling rate has not reached the predetermined filling rate.

[0073] [Note] The above disclosure may be expressed as follows: A first feature of the present invention is that the present invention includes an inner bag that contains a fluid, a frame that is arranged outside a side periphery of the inner bag, and a squeezing mechanism that is arranged at an upper end of the frame, the squeezing mechanism including a pair of rollers that sandwich an upper part of the inner bag in a state where the inner bag is arranged inside the frame, The squeezing mechanism is a discharge system that pulls the inner bag upward with the pair of rollers holding the inner bag between them.

[0074] A second feature is the drain system of the first feature, wherein the inner bag includes an inner bag drain outlet to which a tubular member for draining the fluid is attached, and the inner bag drain outlet is provided in a central region of a bottom surface of the inner bag when the inner bag is placed inside the frame body.

[0075] A third feature is the discharge system of the second feature, further comprising an outer bag that houses the inner bag, the outer bag having an outer bag through-hole provided in a central region of a bottom surface of the outer bag when the outer bag is placed inside the frame body, and the tubular member is attached to the inner bag discharge port via the outer bag through-hole.

[0076] A fourth feature is the discharge system according to the third feature, wherein the outer bag accommodates the inner bag in a state where the outer bag through opening is not fixed to the inner bag discharge opening.

[0077] A fifth feature is the discharge system according to the third or fourth feature, wherein the number of times the inner bag can be used is less than the number of times the outer bag can be used.

[0078] A sixth feature is a discharge system in which, in at least one of the first to fourth features, the throttle mechanism pulls the inner bag upward with the pair of rollers clamping the inner bag when the remaining amount of fluid contained in the inner bag falls below a predetermined remaining amount. [Explanation of symbols]

[0079] 100 discharge system, 110 frame, 111 support, 112 suspension member, 113 suspension member, 120 outer bag, 120B bottom surface, 121 outer bag penetration opening, 130 inner bag, 130B bottom surface, 131 inner bag discharge opening, 132 filling opening, 140 squeezing mechanism, 141 roller, 141A roller, 141B roller, 142 drive mechanism, 160 tubular member, 190 bracket

Claims

1. an inner bag for containing a fluid; a frame body disposed outside the side periphery of the inner bag; a throttle mechanism disposed at an upper end of the frame body, the squeezing mechanism includes a pair of rollers that sandwich an upper portion of the inner bag when the inner bag is placed inside the frame body, The squeezing mechanism is a discharge system in which the pair of rollers pulls the inner bag upward while the pair of rollers sandwich the inner bag.

2. the inner bag has an inner bag discharge port to which a tubular member for discharging the fluid is attached; The discharge system according to claim 1 , wherein the inner bag discharge port is provided in a central region of a bottom surface of the inner bag when the inner bag is placed inside the frame.

3. an outer bag that accommodates the inner bag; the outer bag has an outer bag through-hole provided in a central region of a bottom surface of the outer bag when the outer bag is placed inside the frame body, The evacuation system of claim 2 , wherein the tubular member is attached to the inner pouch evacuation opening through the outer pouch through-opening.

4. The discharge system according to claim 3 , wherein the outer bag accommodates the inner bag with the outer bag through-hole not fixed to the inner bag discharge opening.

5. The discharge system according to claim 3 , wherein the number of times the inner bag can be used is less than the number of times the outer bag can be used.

6. When the remaining amount of fluid contained in the inner bag falls below a predetermined remaining amount, the throttle mechanism The discharge system according to claim 1 , wherein the pair of rollers pulls the inner bag upward while the inner bag is sandwiched between the pair of rollers.

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