JP2018065576A - Pouring port fixing device for bag-in-box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pouring port fixing device capable of fixing by being mounted on a pouring port from the outside irrespective of the size of the diameter of the pouring port in a bag-in-box in which a liquid pouring port provided protrusively in an inner bag protrudes to the outside from an opening of an outer box.SOLUTION: A pouring port insertion hole 2 is provided at a bottom plate 1a of a box body 1 on which a lid body 7 is openably/closably mounted. A plurality of pieces of pouring port holding blades are disposed on the bottom plate 1a so as to surround the pouring port insertion hole 2, and base end parts of these holding blades are pivotally attached in a manner rotatable in the inward/outward direction. A driving ring is disposed on a peripheral edge part of the pouring port insertion hole 2 via these holding blades in a reciprocally rotatable manner, and by the rotation of this driving ring, the pouring port holding blades are actuated in a direction of narrowing the pouring port insertion hole 2 via cam means 6, and a pouring port A is held and fixed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a bag-in-box in which an inner bag filled with liquid such as drinking water, liquid seasoning, and lotion is stored in an outer box, and the inner bag protruding from the opening provided in the outer box The present invention relates to a fixing device for fixing a spout.

  Conventionally, a flexible bag made of a synthetic resin film provided with a spout called spout is used as an inner bag, a cardboard box is used as an outer box, and the inner bag filled with liquid is protected by the outer box and filled with liquid. There is known a so-called bag-in-box container in which an inner bag inflated by is closely supported on an inner wall surface of an outer bag and held in its form.

  According to this type of bag-in-box, the spout is inserted into the fixing hole formed in the top plate of the outer box made of a cardboard box with the spout facing upward, and the spout is screwed into the spout during work. After removing the cap, the liquid is poured out from the inner bag through the spout while tilting the outer box.

  However, according to the bag-in-box, the outer box is made of a relatively low strength cardboard box. Therefore, if the outer box and the inner bag are enlarged and the inner bag is filled with a large volume of liquid, the outer box may be damaged. In addition to this, there is a problem that handling such as transportation becomes difficult, and in addition, it is impossible to incline the outer box and dispense liquid from the spout. In addition, a bag-in-box in which a small volume of liquid is accommodated in the inner bag is not convenient for a user who uses a large amount of liquid.

  For this reason, for example, as described in Patent Document 1, a bag-in that uses a durable container such as a stainless steel that can store an inner bag filled with 500 to 1200 liters of liquid as an outer box. A box (large bag-in-container) has been developed.

  This bag-in-box has a large gusseted bag with a filling port at the top and a spout at the bottom as an inner bag, and this inner bag is stored in an outer box made up of an assembly-type container. While the liquid is filled in, the spout protrudes outside from an opening provided in the lower part of the outer box, and this opening has a semicircular hole having a diameter equal to the outer diameter of the spout on the opposite surface. The lower half of the spout of the spout is placed in the semicircular hole facing upward of the fixed plate fixed to the lower end of the outer box. , And the outer peripheral surface of the spout of the spout between the semicircular hole and the semicircular hole of the fixed plate by pushing the moving plate from above with the semicircular hole facing downward Are configured to be sandwiched and fixed.

JP-A-11-152184

  However, according to the bag-in-box, the spout of the spout is sandwiched and fixed on the front surface of the opening for projecting the spout to the outside, and the fixing plate is arranged to be movable up and down with respect to the fixed plate. It is difficult to employ an outer box made of an existing container as an outer box of a bag-in-box.

  Furthermore, the fixed plate and the moving plate constituting the gate are formed in accordance with the outer diameter of the spout of the inner bag accommodated in the outer box with a semicircular hole provided in the opposing surface. For this reason, when the inner bag having the spout with different outer diameters is stored in the outer box, there is a problem that the function as the spout fixing means cannot be achieved.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a bag-in-box in which an inner bag filled with a liquid is stored in an outer bag. Even if the outer diameter of the spout is different, the spout can be fixed easily and reliably by attaching to the spout from the outside, and the spout protruding from the outer box is housed inside It is to provide a bag-in-box spout fixing device capable of holding the spout and preventing the spout from being opened by an external operation or the like.

  In order to achieve the above object, a bag-in-box spout fixing device according to the present invention includes, as described in claim 1, a box having a space that can accommodate a spout of an inner bag in a bag-in-box. The spout insertion hole provided in the central part of the bottom plate of the box body, and the base end of the spout insertion hole on the peripheral edge of the spout insertion hole can be rotated inward and outward by pivot pins at regular intervals. A plurality of sandwiching blades that are pivotally attached and have an inner end face facing the spout insertion hole formed on the spout sandwiching surface, and forward and reverse with the center of the spout insertion hole on the sandwiching blade as the center of rotation A drive ring disposed so as to be rotatable in a direction, and the rotation of the drive ring causes the plurality of sandwiching blades to enter and exit from the spout insertion hole, and the spout holding surface of these sandwiching blades Operates in the direction to expand / contract the clamping space surrounded by And Rukamu means, characterized by comprising a lid for closing the box body openably.

1
In the bag-in-box spout fixing device configured as described above, in the invention according to claim 2, the drive ring is curved in an arc shape around the rotation center of the drive ring at regular intervals in the circumferential direction. Long holes are provided, and the pivot pins of the plurality of sandwiching blades are inserted into the elongated holes so as to be relatively movable in the length direction of the elongated holes. The outer peripheral surface of the annular body piece fitted on the pivot pin is brought into sliding contact with the long hole.

  Further, in the bag-in-box spout fixing device according to claim 1, as described in claim 3, the cam means includes a cam pin projecting from an intermediate portion in the length direction of each holding blade. Corresponding to these cam pins, there are inclined long holes inclined in a direction away from the center of the spout insertion hole from the inner end side toward the outer end side at a plurality of positions of the drive ring, and the hole wall of the inclined long hole Is formed on a cam surface in which the cam pin is in sliding contact.

  According to a fourth aspect of the present invention, there is provided a holding space portion surrounded by the outlet pinching surfaces of the plurality of holding blades by locking the cam pin to the outer end portion of at least one long hole provided in the drive ring. It is characterized in that a locking hole for maintaining the state expanded to the maximum is provided.

  According to a fifth aspect of the present invention, the drive ring is always attached between the drive ring and the inner surface of the box body in a rotational direction in which the holding space portion surrounded by the spout holding surface of the plurality of holding blades is reduced. A tension spring that is energized is stretched, and a projecting piece for rotation operation is projected on the drive ring.

  In the invention according to claim 6, the box is formed by protruding wall plates having a fixed height on the four-sided edge pieces of the horizontally long rectangular bottom plate, while the lid is a horizontally long rectangular shape smaller than the bottom plate of the box. The side wall plates of a certain height projecting on both side edges of the bottom plate of the box body when the lid is closed are formed on both side edges of the lid body. A notch opening for detachably attaching to a box supporting shaft projecting on the front surface of the outer box of the bag-in-box on the both side wall plates of the covering box and a right angle upward from the notch opening And a vertically long hole for engaging the shaft body, which is communicated with the shaft body.

  According to the first aspect of the present invention, the bag-in-box spout fixing device is provided at the center of the bottom plate of the box in the box having a space that can accommodate the spout of the inner bag in the bag-in-box. A plurality of sandwiching blades for sandwiching the outer peripheral surface of the spout protruding from the spout insertion hole and a drive ring for allowing the sandwiching blade to enter and exit the spout insertion hole. Since it is configured separately from the bag-in-box, when not in use, a large number of fixing devices can be stored in an orderly stack in the storage location. The necessary number of fixing devices can be carried to the liquid filling work place and attached to the spout of the inner bag protruding from the opening of the outer box to fix the spout.

  At this time, the diameter of the spout insertion hole provided in the center of the bottom of the box is formed larger than the outer diameter of the spout, and the plurality of sandwiching blades are arranged at the periphery of the spout insertion hole. The base end is pivotally mounted on the part at regular intervals in the circumferential direction so as to be pivotable inward and outward by a pivot pin, and an inner end surface facing the spout insertion hole is formed on the spout holding surface. Therefore, regardless of the outer diameter of the spout provided in the inner bag, the plurality of sandwiching blades are rotated toward the spout insertion hole and surrounded by the spout sandwiching surface of these sandwiching blades. The spout can be fixed easily and securely by reducing the holding space and holding the inner edge of each holding vane to the peripheral groove provided on the outer peripheral surface of the spout so as to hold the peripheral groove. Can be made.

  Further, since the drive means is provided with cam means for operating the plurality of sandwiching blades in a direction to enter and exit the spout insertion hole, the plurality of sandwiching blades are rotated by the rotation of the drive ring. The operation can be performed simultaneously and with the same movement, and the fixing operation of the spout can be performed easily and accurately.

  Moreover, since the lid body for opening and closing the box body is provided on the box body in the spout fixing device of the present invention, the spout port of the inner bag protruding from the opening of the outer box of the bag-in-box is placed in the box body. It is possible to prevent the spout from being opened unexpectedly from the outside in the housed state by closing the lid.

  According to the second aspect of the present invention, the drive ring is provided with elongated holes that are curved in an arc shape around the rotation center of the drive ring at regular intervals in the circumferential direction. Since the pivot pins of the plurality of sandwiching blades are inserted so as to be relatively movable in the length direction of the long holes, the pivot pins of the plurality of sandwiching blades and the elongated holes provided in the drive ring are guided. As a result, the drive ring can be rotated back and forth accurately around the center of the drive ring to expand and contract the holding space portion surrounded by the spout holding surfaces of the plurality of holding blades. At this time, since the outer peripheral surface of the pivot pin or the outer peripheral surface of the ring piece fitted to the pivot pin is brought into sliding contact with the elongated hole, the drive ring can be rotated smoothly and accurately without causing rattling. Can be made.

  Further, in the invention according to claim 1, the cam means, as described in claim 3, is driven corresponding to the cam pins projecting from the intermediate portion in the length direction of each sandwiching blade, and these cam pins. Inclined long holes that are inclined in a direction away from the center of the spout insertion hole from the inner end side toward the outer end side at a plurality of locations of the ring, and the hole wall of the inclined long hole is a cam surface on which the cam pin slides. Since a plurality of sandwiching blades are formed, a plurality of sandwiching blades are simultaneously and accurately and forcibly used as pivots with pivot pins that pivotally attach the proximal end of each sandwiching blade by the rotation of the drive ring. It can be operated in a direction to expand and contract the spout clamping space surrounded by the outlet clamping surface, and the spout clamping surface of each clamping blade is simultaneously locked with the concave groove provided on the outer peripheral surface of the spout. With these clamping blades, the spout is securely clamped It can be maintained with this its clamping state it is possible to.

  According to the inventions according to claims 4 and 5, the cam pin is locked to the outer end portion of at least one long hole provided in the drive ring and is surrounded by the spout pinching surfaces of the plurality of sandwiching blades. A locking hole is provided for maintaining the clamping space in a fully expanded state, and the clamping ring is reduced between the driving ring and the inner surface of the box. A tension spring that is always urged in the rotational direction is stretched, and a projecting piece for pivoting operation is provided on the drive ring so that the spout fixing device of the present invention is installed at the spout of the inner bag. Before mounting the clamp, it is possible to easily expand the holding space to the maximum by hooking the fingertip onto the rotating operation protrusion and rotating the drive ring against the pulling force of the pulling spring. Can be opened, and in this state, The cam pin you are if ask engaged with an engaging hole which are provided in the outer end portion of the long hole can be held in a state of being wide open clamping space.

  Next, the outer bottom surface of the box is applied to the lower front portion of the outer box provided with an opening for projecting the spout protruding from the inner bag of the bag-in-box to the outside. After making the spout of the inner bag protruding from the spout insertion hole provided in the bottom plate of the box project outside through the holding space portion communicating with the spout insertion hole, When the cam pin protruding from the holding blade is removed from the locking hole provided at the outer end of the elongated hole, the rotating ring rotates in the opposite direction by the restoring force of the tension spring, and multiple sheets The holding blade is rotated toward the spout with the pivot pin as a fulcrum, and the spout holding surface is instantaneously entered into the circumferential groove provided on the outer peripheral surface of the spout while reducing the holding space. The outer peripheral surface of the peripheral groove is sandwiched by these clamping blades. It is to be able, fixing work of the spout according to the present invention the spout securing apparatus can be performed quickly and smoothly.

  Further, after using the liquid filled in the inner bag, the lid for closing the box in the spout fixing device of the present invention attached to the spout is opened and disposed in the box. The above-mentioned drive ring is operated to rotate against the pulling force of the tension spring by operating the rotating operation piece protruding from the drive ring with a fingertip, thereby maximizing the holding space. As described above, the cam pin protruding from the holding blade is locked to the locking hole provided at the outer end of the long hole to maintain the holding space in an enlarged state. Then, the spout fixing device of the present invention can be easily removed from the spout of the inner bag, and can be reused for fixing the spout of another bag-in-box.

  According to the invention of claim 6, when the lid is slightly smaller than the box and the opening end of the box is closed by the lid, the both side walls of the lid are connected to the both side walls of the box. In order to detachably attach to the box supporting shaft projecting on the front surface of the outer box of the bag-in-box on both side wall plates of the box. Since the notch opening and the vertically long hole for engaging the shaft body that communicates perpendicularly upward from the notch opening are provided, the box that protrudes from the front of the outer box of the bag-in-box when in use By inserting the notch opening provided in the both side wall plates of the box into the supporting shaft, and locking the box supporting shaft from the notch opening to the vertically long hole for engaging the shaft, In order to make the spout fixing device for the bag in box of the present invention project the spout of the inner bag to the outside Opening can be attached easily and precisely to the lower front of the outer box with.

The perspective view of the spout fixing device for this invention bag in box. The front view. The perspective view of the state which expanded the spout exit clamping space. The front view. FIG. The expansion perspective view of the pivot attachment part of a clamping blade. The longitudinal side view. The simplified perspective view of the state which attached the spout fixing device to the outer box of a bag in box. The longitudinal side view of the wearing state. The perspective view of the part which provided the opening part for spout protrusion in an outer box. The perspective view of the state with which the front surface of the opening part for spout protrusion is mounted | worn. (A) (b) Sectional drawing which shows the attachment procedure. The perspective view of the mounted state. The front view.

  A specific embodiment of the present invention will be described with reference to the drawings. In a bag-in-box in which an inner bag B provided with a liquid spout A at the lower end is housed in an outer box C made of a container, the inner bag As shown in FIGS. 1 to 5, the spout fixing device for fixing the spout A of B includes a box 1 having a circular spout insertion hole 2 in the center of the bottom plate 1a, and the above-described spout. A plurality of sheets (in the drawing, the inner end surface facing the spout insertion hole 2 is formed on the peripheral edge of the outlet insertion hole 2 so as to surround the spout insertion hole 2 in the spout holding surface 3a. 3) and the spout holding blades 3, 3 and 3 and these nipping blades 3, 3 and 3 are superimposed on each other and rotated in the forward and reverse directions with the center of the spout insertion hole 2 as the center of rotation. A freely arranged drive ring 4 and the plurality of clamping blades by rotation of the drive ring 4 3, 3 and 3 are moved in and out of the spout insertion hole 2, and the holding space portion 5 surrounded by the spout holding surfaces 3a, 3a and 3a of the holding blades 3, 3 and 3 is enlarged or reduced. The cam means 6 is operated in the direction to be closed, and the lid body 7 is configured to close the box 1 so as to be freely opened and closed.

  The box 1, the spout holding blade 3, the drive ring 4, and the lid 7 are formed from thin metal plates.

  The structure of the spout fixing device will be described more specifically. The box 1 has upper and lower wall plates 1b and 1c and both side wall plates 1d and 1e having a fixed height on the upper and lower edges and both side edges of a horizontally long rectangular bottom plate 1a. Each of them is formed in a flat rectangular box shape having a depth space that can accommodate the spout A provided at the lower end portion of the inner bag B in the bag-in-box, and is provided at the center of the bottom plate 1a. The diameter of the circular spout insertion hole 2 provided in the section is formed larger than the outer diameter of the spout A. The width of the box 1 is such that the front side of the outer box C in the bag-in-box is provided in parallel with each other so as to sandwich the spout opening D (see FIG. 10) opening at the lower end of the front. The outer casing reinforcing vertical frames E and E are formed in dimensions that can be fitted between them.

  In addition, a frame-shaped bottom plate 1a ′ in which a spout insertion hole 2 ′ having the same diameter as the spout insertion hole 2 is provided on the center of the inner bottom surface of the bottom plate 1a of the box 1 to form a part of the bottom plate 1a, The spout insertion holes 2 and 2 'are stacked and fixed integrally in a vertically aligned manner, but such a frame-shaped bottom plate 1a' is not necessarily provided as will be described later. These bottom plate 1a, frame-shaped bottom plate 1a ', and superposed spout insertion holes 2 and 2' will be described as a single bottom plate 1a and spout insertion hole 2, respectively.

  As shown in FIGS. 1, 2, and 5, the plurality of spout holding blades 3, 3, 3 disposed on the peripheral edge of the spout insertion hole 2 so as to surround the spout insertion hole 2, The same size and shape. Specifically, the sandwiching blade 3 is formed of a plate piece that is long in the circumferential direction of the spout insertion hole 2 and is curved in a letter shape along the outer peripheral edge of the spout insertion hole 2. The circumferential length with respect to the hole 2 is formed to be slightly shorter than the length obtained by dividing the circumferential length of the spout insertion hole 2 by the number of the sandwiching blades 3.

  Then, a plurality of sandwiching blades 3, 3, 3 are arranged at a plurality of positions on the peripheral edge of the spout insertion hole 2 on the inner bottom surface of the bottom plate 1 a, with the distal ends and proximal ends of the sandwiching blades 3, 3 adjacent in the circumferential direction The base end portions of the sandwiching blades 3 are sequentially arranged so as to have a small gap therebetween, and project at the peripheral edge portions of the spout insertion hole 2 (three sides of the peripheral edge portion of the spout insertion hole 2 in the figure). The pivot pin 8 is pivotally attached to the spout insertion hole 2 so as to be rotatable in the direction (inside and outside).

  As shown in FIG. 7, the pivot pin 8 is inserted so that its head 8a is inserted into a hole 21 formed in the bottom plate 1a of the box 1, and this head 8a is overlaid on the bottom plate 1a. The frame-shaped bottom plate 1a 'is in contact with the outer bottom surface of the frame-shaped bottom plate 1a', but can be fixed so as to be immersed in the bottom plate 1a so that the head does not come out of the outer bottom surface of the bottom plate 1a, or the head 8a If the box 1 can be disposed at the fixed position of the spout A protruding from the spout opening D in the outer box C of the bag-in-box even if it protrudes from the bottom plate 1a ', the frame-shaped bottom plate 1a' Is not necessary.

  The drive ring 4 disposed with the back surface overlaid on the plurality of sandwiching blades 3, 3, 3 has a central circular hole having the same diameter or a large diameter as the spout insertion hole 2 at the center. 4a is provided, and the central circular hole 4a is aligned with the spout insertion hole 2 so as to be concentric with the spout insertion hole 2.

  Further, the outer periphery of the drive ring 4 has an arcuate shape around the rotation center of the drive ring 4 so as to correspond to the pivot pin 8 pivotally attached to the base end portion of each clamping blade 3. Curved long holes 9 are provided at regular intervals in the circumferential direction, and each pivot pin 8 corresponding to each long hole 9 is inserted so as to be relatively movable in the length direction of the long hole 9. As shown in FIGS. 6 and 7, each pivot pin 8 is rotatably fitted around the pivot pin 8 with an annular piece 10 having the same dimension as the length between the parallel holes of the long holes 9. The outer peripheral surface of the annular piece 10 is slidably contacted with the hole wall surface of the long hole 9, and the drive ring 4 provided with the long hole 9 is smoothly rotated without causing eccentricity or rattling. However, the pivot pin 8 may be formed to have a large diameter and the outer peripheral surface thereof may be brought into sliding contact with the hole wall surface of the long hole 9 without providing such an annular piece 10.

  The plurality of sandwiching blades 3, 3, 3 are moved in and out of the spout insertion hole 2 by the rotation of the drive ring 4, and the spout sandwiching surfaces 3 a, 3 a of these sandwiching blades 3, 3, 3 a The cam means 6 that operates in the direction of expanding and contracting the sandwiching space 5 surrounded by 3a protrudes from the central portion of each sandwiching blade 3 in the length direction, that is, a refracting portion that is curved in a U-shape. Corresponding to each cam pin 11 and a plurality of positions of the drive ring 4 inclined from the inner end side (center circular hole side) to the outer end side in the direction away from the pivot pin 8 of each clamping blade 3 The hole wall of the inclined long hole 12 is formed on the cam surface on which the cam pin 11 is slidably contacted.

  As described above, a plurality of pairs of the long holes 9 and the inclined long holes 12 curved in an arc shape are provided at a plurality of locations on the outer periphery of the drive ring 4 (three sides in the drawing) at regular intervals in the circumferential direction. Further, among the plurality of inclined long holes 12, 12, 12, at least one inclined long hole 12 has a locking hole refracted at right angles to the inclined long hole 12 at the outer end thereof. A portion 12a is formed, and the cam pin 11 is locked in the locking hole portion 13.

  A projecting piece 4b is projected from the outer peripheral edge of the drive ring 4 facing the one side wall plate 1d of the box 1, and the projecting piece 4b and the inner surface or lower wall of the bottom plate 1a of the box 1 are provided. A tension spring 13 is stretched between the inner surface of the plate 1c and a projecting piece 1f projecting into the box 1, and one end and the other end of the tension spring 13 are connected to the projecting piece 4b and the projecting piece, respectively. 1f, and the drive ring 4 is constantly urged along the inclined long hole 12 in the direction toward the inner end side of the inclined long hole 12 by the tensile force of the tension spring 13; In a normal state, the cam pin 11 is brought into contact with and received by the inner end portion of the inclined long hole 12.

  In a state where the cam pin 11 is in contact with and received by the inner end surface of the inclined long hole 12, each clamping blade 3 projects from the spout pinching surface 3 a into the spout insertion hole 2 around the pivot pin 8. The spout A is provided with a clamping space 5 surrounded by the spout clamping surfaces 3a, 3a, 3a of the clamping blades 3, 3, 3 at the lower end of the inner bag B in the bag-in-box. It is comprised so that it may become a space part narrower than the outer diameter of.

  Further, the drive ring 4 is rotated in the direction opposite to the above with a long hole 9 curved in an arc shape and a pivot pin 8 inserted through the long hole 9 as a guide against the tensile force of the tension spring 13. If the drive ring 4 is moved, the cam pin 11 protruding from each clamping blade 3 by the rotation of the drive ring 4 extends along the inclined long hole 12 provided in the drive ring 4, and the outer end side of the inclined long hole 12. Each of the holding blades 3 rotates toward the direction in which the spout pinching surface 3a is sunk outward from the spout insertion hole 2 around the pivot pin 8 so that the cam pin 11 is outside the inclined long hole 12. 3 and FIG. 4, when coming into contact with the end, the spout pinching surface 3a of each pinching blade 3 is completely hidden from the spout insertion hole 2 by the back surface of the drive ring 4. So as to move radially outward and surrounded by the spout holding surface 3a of these holding blades 3 Lifting space portion 5 is configured to expand to the maximum.

  An operation protrusion 4c is projected from the outer peripheral edge of the drive ring 4 facing the other side wall plate 1e of the box 1 toward the opening end of the box 1, and the operation protrusion 4c is held at the fingertip. The drive ring 4 is configured to be able to rotate in the direction in which the holding space 5 is expanded against the tensile force of the tension spring 13.

  The lid body 7 of the box body 1 is formed in a horizontally long rectangular shape that is slightly smaller than the bottom plate 1a of the box body 1, and the heights of both side walls 1d and 1e of the box body 1 are on both side edges thereof. Both side wall plates 7a and 7b which are lower than the height protrude toward the inside of the box 1, and when the lid is closed, the protruding end surfaces of these both side wall plates 7a and 7b are used as both side edges of the bottom plate 1a of the box 1 It is formed so as to be in a state of being in contact with the inner surface of the part. The width between the outer side surfaces of the side wall plates 7a, 7b of the lid 7 is formed so as to be narrower than the width between the opposing inner surfaces of the side wall plates 1d, 1e of the box 1, When the lid body 7 is inserted into 1 and the open end of the box body 1 is closed, the side wall plates 1d and 7a of the box body 1 and the lid body 7 are opposed to each other and the other side wall plate 1e, The gaps 14 and 14 having a constant width are provided between the opposing surfaces of 7b (see FIG. 14).

  The attachment structure of the lid body 7 to the box body 1 is such that short support shafts 15 and 15 made of screws are attached to the upper end portions of the both side wall plates 1d and 1e of the box body 1 toward the both side wall plates 7a and 7b of the lid body 7. These side wall plates 7a and 7b are provided at the ends of the side wall plates 7a and 7b of the lid body 1 which are respectively provided so as to face the inner side surfaces of the upper end portions of the side wall plates 1d and 1e of the box body 1. Long bearing holes 16 and 16 are provided in the height direction of the shaft. The support shafts 15 and 15 are inserted into the bearing long holes 16, and nuts or the like are attached to the ends of the support shaft 15. When the lid body 7 is pivotally mounted with 1515 as a fulcrum, and the lid body 7 is closed, the lid body 7 can be moved in the direction of lifting from the box body 1 by the bearing long holes 16 and 16. ing. A spacer 17 for holding the gap 14 is attached to the support shaft 15.

  Further, shaft body insertion notches 18 and 19 of a box body support shaft F, which will be described later, are formed in the upper and lower portions of both side ends of the bottom plate 1a of the box body 1, and these shaft body insertion holes are used. The shaft body receiving notch openings 20 and 21 are formed on the upper and lower portions of the both side wall plates 1d and 1e of the box 1 which are respectively connected to the notch openings 18 and 19 and cover the both side wall plates 7a and 7b of the lid 7. Shaft body engaging longitudinally elongated holes 22 and 23 communicating at right angles upward from the shaft body receiving notch openings 20 and 21 are provided.

  On the other hand, shafts provided at the upper and lower portions at both side end portions of the bottom plate 1a of the box 1 are formed on the opposing surfaces of the vertical reinforcing frames E, E provided on the front surface of the outer box C in the bag-in-box. Box body support shafts F and F project from the body insertion cutout openings 18 and 19 at the same interval in the vertical direction. Further, on the inner surface of one side wall plate 1d of the both side wall plates 1d and 1e of the box 1, the upper half of the shaft body engaging vertical hole 23 provided at the lower portion of the side wall plate 1d is overlaid. A plate spring 25 provided with a shaft body holding hole 24 communicating with is attached, and the upper portion of the plate spring 25 is fixed to the inner surface of the side wall plate 1d. The shaft body holding hole 24 has a larger diameter than the box body supporting shaft F so that the box body supporting shaft body F can be moved vertically and horizontally within the shaft body holding hole 24. ing.

  The shaft body holding hole 24 is provided in the lower part of the leaf spring 25, and the lower end portion of the leaf spring below the shaft body holding hole 24 is formed in an inclined piece 25a inclined toward the inner side of the box 1; The inclined piece 25a faces a notch opening 21 for receiving a shaft provided on one side wall plate 1d of the box 1. The box supporting shafts F and F are vertically long for engaging the shaft body provided in the shaft body holding hole 24 provided in the leaf spring 25 and the side wall plates 1d and 1e of the outer box C. It is formed so as to have a smaller diameter than the width (diameter) of the holes 22 and 23, and is configured to support the box body 1 so as to be adjustable in the vertical and horizontal directions.

  In addition, a lid opening / closing hole 26 on which a fingertip can be hooked is provided at a corner portion on the lower end side (lid body tip side) of the other side portion of the lid body 7 and the other side wall plate 7b of the lid body 1 is provided. A through hole 27 that is adjacent to the lower end portion at right angles to the lid opening / closing hole 26 and that corresponds to the shaft body engaging vertical hole portion 23 provided at the lower end portion of the other side wall plate 1e of the box 1 is provided. When the box body 1 is closed by the lid body 7, the lid body opening / closing hole 26, the through hole 27, and the shaft body engaging long hole portion 23 are connected to a linear object (not shown). ) And the like are detachably placed so that the closed state can be maintained.

  The outer box C made of a container in the bag-in-box is made of a stainless steel plate having a thickness of about 2 mm whose surface is reinforced by a metal frame material, and is formed into a large container capable of storing, for example, 1000 liters of liquid. Has been. The inner bag B accommodated in the outer box C is composed of a single layer film such as polyethylene or polypropylene, or a laminate film or other multilayer film in which such a film and an aluminum foil are combined. It is formed in the shape of a gusset bag or the like that is disposed in contact with the inner surface of the four-side wall surface from the bottom surface. The outer box C may be formed from a synthetic resin plate in addition to the metal plate such as stainless steel.

  As described above, the lower end of the front surface of the inner bag B disposed along the front side of the outer box C is externally connected through the spout protrusion opening D that is open at the lower end of the front surface of the outer box C. On the other hand, a liquid filling port (not shown) is provided in the upper part of the inner bag B.

  As shown in FIG. 9, the spout A is composed of a cylindrical spout A1 and an inner plug A2, and the spout A1 is projected to the outside through a mounting hole provided at the lower front end of the inner bag B. The flange a1 provided at the base end is integrally attached to the inner bag B by fusing it to the inner surface of the inner bag B, and the inner plug A2 is inserted into the spout A1 from the base end opening of the spout A1. Insert the O-ring a2 attached to the outer peripheral surface while screwing the outer peripheral surface into the inner peripheral surface of A1 while making sliding contact with the inner peripheral surface of the spout A1, and a flange a3 provided at the base end thereof Is mounted in the spout A1 so as to be in contact with the flange a1 of the spout A1. Further, a screw hole a4 used for removing the inner plug A2 from the spout A1 is provided in the central portion of the top wall of the inner plug A2.

  The spout A may have a different structure without adopting the spout A1 and the inner plug A2, and in any case, the spout A1 of the spout A can be used. The base outer peripheral surface receives the spout holding surface 3a of the outflow pin holding blades 3, 3, and 3 in the spout fixing device, and sandwiches the outer peripheral surface of the spout A with these spout holding surfaces 3a. A circumferential groove a5 having a constant groove width is provided, and a liquid take-out device (not shown) in the inner bag B is mounted and supported on the outer circumferential surface of the spout A1 in the longitudinal direction. The circumferential groove a6 is provided.

  Next, a usage mode of the bag-in-box spout fixing device configured as described above will be described.

  In the outer box C, the inner bag B is stored in contact with the four inner wall surfaces from the bottom surface of the outer box C, and the spout A provided at the front lower end of the inner bag B is provided at the lower end of the front of the outer box C. A bag-in-box is configured so as to project outward from an opening D provided in the portion, and the inner bag B is filled with liquid through a liquid filling port.

  In order to fix the spout A by attaching the spout fixing device of the present invention to the spout A of the inner bag B protruding outward from the opening D of the outer box C, first, the spout fixing device is connected to the spout. Before attaching to A, the lid 7 is opened, and the operation protrusion 4c protruding from the rotation ring 4 in the spout fixing device is provided on the rotation ring 4 with the fingertip of one hand. A forward direction (FIGS. 1 and 2) in which the long blade 9 curved in an arc shape is expanded with the proximal pivot pin 8 of the pinching blade 3 provided so as to be relatively movable in the long hole 9 as a guide. When the rotation operation is performed against the tensile force of the tension spring 13 (clockwise in FIG. 1), the cam pins 11 projecting from the holding blades 3 come from the inner end side of the inclined elongated hole 12 provided in the rotation ring 4. Moving to the outer end side, each clamping blade 3 rotates outward with the pivot pin 8 as a fulcrum, and is provided on the bottom plate 1a of the box 1 As shown in FIGS. 3 and 4, the spout holding surface 3a of each holding blade 3 that has been projected into the spout insertion hole 2 is moved to the outside of the spout insertion hole 2, and as shown in FIGS. The holding space 5 surrounded by 3 and 3 is greatly expanded.

  In this state, each cam pin 11 reaches a position where it abuts against the outer end of the inclined elongated hole 12, and each clamping blade 3 is prevented from further expanding, and a locking hole 12a is formed at the outer end. The cam pin 11 reaching the outer end of the provided long hole 12 is engaged with the locking hole 12a while slightly rotating the holding blade 3 provided with the cam pin 11 outwardly with the fingertip of the other hand. The rotation ring 4 is prevented from rotating in the reverse direction regardless of the tensile force of the tension spring 13.

  As described above, both sides of the lower portion of the front surface of the outer box C in the bag-in-box hold the box 1 holding the holding space 5 surrounded by the plurality of holding blades 3, 3, 3 in a greatly expanded state. It is inserted between the vertical frames E and E for reinforcing the outer box.

  At this time, first, as shown in FIG. 11, the lid 7 is gripped so that the box 1 is tilted forward from the lower end side toward the upper end side, and the vertical frame E for reinforcing the outer box from the lower end side. A pair of left and right shaft body insertion notches 19 and 19 formed in the lower part of both side ends of the bottom plate 1a of the box 1 for reinforcing both sides of the outer box C in the bag-in-box. The box body supporting shafts F and F are inserted into the shaft body through the pair of lower left and right box body supporting shafts F and F projecting from the opposing surfaces of the vertical frames E and E, respectively. From the notch openings 19 and 19 to the shaft body receiving notch openings 21 and 21 through the shaft body receiving notch openings 21 and 21 provided in the lower part of the both side wall plates 1d and 1e of the box 1, the upward direction is directed from the shaft body receiving notch openings 21 and 21. The shaft body engaging vertical elongated holes 23 and 23 communicated at right angles are relatively moved into the lower part.

  Next, the box 1 is raised from the inclined state to the vertical state around the lower box supporting shafts F, F, and is fitted between the vertical frames E, E for reinforcing the outer box. When the outer bottom surface of 1 is brought into contact with the front surface of the outer box C, the spout A is provided on the bottom plate 1a of the box 1 with the spout A protruding outward from the spout opening D of the outer box C. From the hole 2, the holding space 5 surrounded by the holding blades 3, 3, 3 and the central circular hole 4 a of the rotating ring 4 project into the box 1.

  Further, immediately before the outer bottom surface of the box 1 comes into contact with the front surface of the outer box C, a pair of upper left and right box bodies projecting on the opposite surfaces of the vertical reinforcing frames E, E on both sides of the outer box C are supported. A pair of left and right shaft body insertion notches 18 and 18 formed at the upper portions of both end portions of the bottom plate 1a of the box body 1 are aligned with the shaft bodies F and F, respectively, and the outer bottom surface of the box body 1 is When contacting the front surface of C, the upper box supporting shafts F and F are provided on the upper portions of the side wall plates 1d and 1e of the box 1 from the shaft body insertion notches 18 and 18. The shaft body receiving cutout openings 20 and 20 are inserted into the lower portions of the shaft body engaging vertically long holes 22 and 22 that communicate with each other at a right angle upward.

  In this state, as shown in FIG. 12, when the box 1 is moved slightly downward, a pair of upper left and right box supporting shafts F and F and a pair of lower left and right box supporting shafts are provided. F and F are in the pair of left and right shaft body engaging vertical holes 22 and 22 provided on the upper portions of the side wall plates 1d and 1e of the box 1 and the side wall plates 1d and 1e of the box body 1 respectively. The pair of left and right shaft body engaging vertically long holes 23, 23 provided in the lower part move relatively upward along the inside and are locked to the inner surfaces of these upper ends, so that the box 1 supports these boxes It will be in the state supported by the shafts F for F.

  At this time, the shaft body engaging vertically elongated hole 23 provided at the lower end inclined piece 25a of the leaf spring 25 attached to the inner surface of the one side wall plate 1d of the box body 1 is provided below the one side wall plate 1d of the box body 1. As the box body supporting shaft F is inserted into the front end of the box body supporting shaft F and the box body 1 is moved downward, the box spring supporting body F uses the leaf spring 25 as a fulcrum. A shaft body provided at the lower part of the leaf spring 25 when the box supporting shaft body F is moved relatively upward while being elastically bent inward and reaches the upper part of the longitudinally long hole 23 for shaft body engagement. Engage in the holding hole 24 in the inserted state. In this state, the box body 1 is prevented from being unexpectedly removed from the front surface of the outer box C.

  In this manner, the box body 1 is supported on the inner surface of the upper end of the shaft body engaging vertical holes 22 and 23 so as to cover the spout opening D of the outer box C in the bag-in-box. In a state in which the shaft bodies F and F are locked on the front surface of the outer box C, the spout A insertion hole provided in the bottom plate 1a of the box 1 and a plurality of spout holding blades are provided. The vertical hole portions 22 and 23 for engaging the shaft body are predetermined so that the center space hole 5 surrounded by 3 and the center of the central circular hole 4a of the rotating ring 4 are decentered downward from the center of the spout A. The length dimension is set.

  In this state, when the cam pin 11 projecting from the holding blade 3 is removed from the engaging hole 12a at the outer end of the inclined long hole 12 provided in the rotating ring 4, the rotating ring 4 is connected to the tension spring 13. Due to the restoring force, the cam pin 11 that rotates in the opposite direction to the above and moves on each sandwiching blade 3 moves from the outer end side to the inner end of the inclined elongated hole 12 to move the plurality of sandwiching blades 3. 3 and 3 pivot about the pivot pin 8 at the base end thereof and simultaneously rotate inward toward the outer peripheral surface of the spout A, and as shown in FIGS. The holding space 5 surrounded by the three and three spout pinching surfaces 3a is instantaneously reduced, and the spout pinching surface 3a enters the circumferential groove a5 provided on the outer peripheral surface of the base end of the spout A; The plurality of outer peripheral surface portions of the circumferential groove a5 are clamped by the clamping blades 3, 3, and 3 to fix the spout A.

  At this time, of the plurality of sandwiching blades 3, 3, 3 that rotate simultaneously, the spout holding surface 3 a of the upper sandwiching blade 3 is poured before the spout holding surface 3 a of the other sandwiching blades 3, 3. Locking to the upper peripheral portion of the peripheral groove a5 of the outlet A, the locking force causes the box 1 to move slightly upward along the box supporting shafts F, F, so that the center of the clamping space 5 The outer peripheral surface of the peripheral groove a5 of the spout A is evenly sandwiched by the plurality of sandwiching blades 3, 3, 3 so that the center of the spout A is matched.

  Thereafter, the lid body 1 is closed, and the lid opening / closing hole 26 provided at the corner of the lid body 7 as necessary, and the through hole provided at the lower end portion of the other side wall plate 7b of the lid body 1. 27 and closed by connecting a string-like object (not shown) or the like over the shaft body engaging vertical hole 23 provided at the lower end of the other side wall plate 1e of the box 1 Maintain the lid.

  Thus, the bag-in box that covers and fixes the spout A of the inner bag B protruding from the opening D of the outer box C in the bag-in box by the spout fixing device of the present invention is transported and supplied to the user or the like. When the liquid filled in the inner bag B is taken out, the lid 7 is opened upward, and then the liquid is inserted into the circumferential groove a6 provided on the outer peripheral surface of the spout A1 at the spout A protruding into the box 1. By supporting the take-out device (not shown) and pushing the inner stopper A2 of the spout A toward the inner bag B from the spout A1 by this take-out device, the liquid flows out from the spout A1 through the take-out device. Let

  When all the liquid in the inner bag B is taken out, the lower end inclined piece 25a of the leaf spring 25 attached to the inner surface of the one side wall plate 1d of the box body 1 is elastically moved inward to The box body supporting shaft F projecting from the reinforcing vertical frame E in the bag-in-box engaged with the shaft body holding hole 24 is detached from the shaft body holding hole 24, and in this state the box body The above-mentioned box which protrudes from the upper and lower parts of the opposing surfaces of the both side reinforcing vertical frames E, E of the outer box C of the bag-in-box by pulling 1 forward along the outer surface of the outer box C and pulling it forward From the body support shaft F, the pair of left and right shaft body engaging vertical holes 22 and 22 provided at the upper part of the side wall plates 1d and 1e of the box 1 are detached, and the spout fixing of the present invention is fixed from the bag-in box. Remove the device.

  Thus, the removed spout fixing device of the present invention is reused for fixing the spout A in another bag-in-box.

DESCRIPTION OF SYMBOLS 1 Box body 2 Outlet insertion hole 3 Outlet holding blade 4 Drive ring 5 Clamping space part 6 Cam means 7 Lid body 8 Pivoting pin 9 Long hole
11 Cam pin
12 Inclined slot
12a Locking hole
13 Tension spring
15 Spindle
18, 19 Notch opening for shaft insertion
20, 21 Notch opening for receiving shaft
22, 23 Long hole for shaft engagement A Outlet B Inner bag C Outer box D Opening E, E Outer box reinforcement vertical frame F Box support shaft

Claims (6)

  A box having a space that can accommodate the spout of the inner bag in the bag-in-box, a spout insertion hole provided in the center of the bottom plate of the box, and a peripheral portion of the spout insertion hole in the circumferential direction A plurality of sandwiching blades whose base end portions are pivotally pivoted inward and outward by a pivot pin at regular intervals, and an inner end surface facing the spout insertion hole is formed on the spout sandwiching surface; A drive ring disposed on these sandwiching blades so as to be rotatable in the forward and reverse directions with the center of the spout insertion hole as a center of rotation, and the plurality of sandwiching blades by the rotation of the drive ring. A cam means that moves in and out of the outlet insertion hole and operates in a direction to expand and contract the clamping space surrounded by the spout clamping surface of these clamping blades, and a lid that closes the box in a freely openable and closable manner Bag-in-box pouring characterized by Locking device.   The drive ring is provided with long holes curved in an arc shape around the rotation center of the drive ring at regular intervals in the circumferential direction, and each of the plurality of holding blades is pivotally attached to each of the long holes. The pin is inserted so as to be relatively movable in the length direction of the long hole, and the outer peripheral surface of the pivot pin or the outer peripheral surface of the annular piece fitted to the pivot pin is in sliding contact with the long hole. The spout fixing device for bag-in-boxes according to claim 1,   The cam means includes a cam pin projecting from an intermediate portion in the length direction of each sandwiching blade, and a spout insertion hole from the inner end side toward the outer end side at a plurality of locations of the drive ring corresponding to these cam pins. 2. The bag-in-box according to claim 1, further comprising a slanted long hole that is slanted in a direction away from the center of the bag, wherein a hole wall of the slanted long hole is formed on a cam surface on which the cam pin slides. Outlet fixing device.   A cam pin is locked to the outer end of at least one long hole provided in the drive ring so that the clamping space surrounded by the spout clamping surfaces of the plurality of clamping blades is expanded to the maximum. 4. The bag-in-box spout fixing device according to claim 1 or 3, further comprising a locking hole for maintaining the bag-in-box.   Between the drive ring and the inner surface of the box, a tension spring is always urged in the rotational direction in which the clamping space surrounded by the spout clamping surface of the clamping blades shrinks. 5. The bag-in-box spout fixing device according to claim 1, wherein a turning piece is provided on the drive ring.   The box is formed by projecting wall plates of a certain height on the four sides of a horizontally long rectangular bottom plate, while the lid is formed in a horizontally long rectangular shape smaller than the bottom plate of the box and on both side edges thereof. When the lid is closed, both side wall plates of a fixed height projecting on both side end portions of the bottom plate of the box body are projected, and the bag on both side wall plates of the box body covering both side wall plates of the lid body A notch opening for detachably attaching to the box supporting shaft projecting from the front surface of the outer box of the inbox, and a vertically long hole for engaging the shaft body at a right angle upward from the notch opening. The spout fixing device for bag-in-boxes according to claim 1, wherein:

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