JP2022041559A - Pouring member connection structure and packaging container - Google Patents

Abstract

To provide a pouring member connection structure and a packaging container capable of easily resealing a first container after supplying fluid in the first container to a second container.SOLUTION: A pouring member connection structure comprises: a pouring member 10 including an insertion part 12 having a pouring flow path 15 through which fluid flows; a valve body 20 provided in the insertion part 12 so as to be displaced in an axial direction; and a receiving part 30 having an insertion hole 32 into which the insertion part 12 is inserted. The valve body 20 can switch between an open position P2 for opening the pouring flow path 15 and a closing position for closing the pouring flow path 15 by displacement in the axial direction. The valve body 20 has a cylindrical part 22 having an internal space 22d and a partition wall 25 for partitioning the internal space 22d into a plurality of flow path spaces 25a and 25b. The receiving part 30 has a cylindrical part 31 to be inserted having the insertion hole 32. The insertion hole 32 is a single internal space 32b opened on a tip end 31a side and a base end 31b side of the part 31 to be inserted.SELECTED DRAWING: Figure 7

Description

The present invention relates to a pouring member connection structure and a packaging container.

Conventionally, a packaging bag such as a pouch has been widely used as a flexible packaging container formed of a film. As a self-supporting packaging bag, for example, Patent Documents 1 and 2 describe a structure in which the front surface and the rear surface are sealed at both left and right ends to form a body portion, and the bottom portion is sandwiched between the lower portions of the body portion. ..

Japanese Patent No. 3977284 Japanese Patent No. 4689158

The flexible packaging containers described in Patent Documents 1 and 2 are widely used, for example, for refilling the contents of the main body container. However, it is intended as a one-time disposable container and the opened spout cannot be resealed. Therefore, it was not possible to increase the capacity of the refill container to handle multiple refills.

One aspect of the present invention provides a pouring member connection structure and a packaging container capable of easily resealing the first container after supplying the fluid in the first container to the second container.

In one aspect of the present invention, an injection member having an insertion portion having an injection flow path through which fluid flows, a valve body provided in the insertion portion so as to be displaced in the axial direction, and the insertion portion are inserted. The valve body is provided with a receiving portion having an insertion hole, and the valve body can switch between an open position for opening the pouring flow path and a closing position for closing the pouring flow path by displacement in the axial direction. The valve body has a tubular portion having an internal space and a partition wall for partitioning the internal space into a plurality of flow path spaces, and the receiving portion is a tubular inserted portion having the insertion hole. The insertion hole provides a single internal space open to the distal end side and the proximal end side of the inserted portion.

An annular rib that comes into contact with the inner peripheral surface of the insertion hole may be formed on the outer peripheral surface of the insertion portion.
The pouring flow path is opened at the tip of the insertion portion, and at the opening position, the tip of the insertion portion may project to the proximal end side of the inserted portion through the insertion hole.

A spiral engaging portion is formed on the inner peripheral surface of the insertion portion and the outer peripheral surface of the valve body so as to engage with each other and enable relative displacement of the insertion portion and the valve body in the spiral direction. An engaged portion is formed on the body, and the receiving portion may have an engaging portion that engages with the engaged portion so as not to rotate relative to the engaged portion when the injection member is inserted into the insertion hole. good.
The engaging portion is formed so as to project from the inner peripheral surface of the insertion hole toward the single internal space, and the insertion portion is engaged when the valve body is relatively displaced in the spiral direction. It may have a spiral notch that allows the engagement to pass through the engagement.

Yet another aspect of the present invention includes a first container having the dispensing member and the valve body of the dispensing member connecting structure, and a second container having the receiving portion of the dispensing member connecting structure. Provided a packaging container characterized by the above.
The second container may have an attachment that can be attached to the insertion hole of the receiving portion.

According to one aspect of the present invention, the first container can be easily resealed after the fluid in the first container is supplied to the second container.

It is a perspective view of the pouring member connection structure of an embodiment. It is a perspective view which shows an example of a pouring member. It is sectional drawing which shows an example of the pouring member. It is a perspective view which shows an example of a valve body. It is a perspective view which shows an example of a receiving part. It is sectional drawing of the pouring member connection structure at the closing position of a valve body. It is sectional drawing of the pouring member connection structure in the open position of a valve body.

Hereinafter, the present invention will be described with reference to the drawings based on the preferred embodiments. In each drawing used in the following description, the scale of each member may be changed as appropriate in order to make each member a recognizable size.

(Injection member connection structure 100)
FIG. 1 is a perspective view of the dispensing member connection structure 100 of the embodiment. FIG. 2 is a perspective view of the dispensing member 10. FIG. 3 is a cross-sectional view of the pouring member 10. FIG. 4 is a perspective view of the valve body 20. FIG. 5 is a perspective view of the receiving portion 30. FIG. 6 is a cross-sectional view of the pouring member connecting structure 100 at the closing position P1 of the valve body 20. FIG. 7 is a cross-sectional view of the pouring member connecting structure 100 at the open position P2 of the valve body 20.

As shown in FIG. 1, the dispensing member connecting structure 100 includes a dispensing structure 101 in the first container and a receiving portion 30 in the second container. The dispensing structure 101 includes a dispensing member 10 and a valve body 20.

The tip side of the dispensing structure 101 is the side where the dispensing structure 101 approaches the receiving portion 30 along the central axis C at the time of dispensing. The tip end side of the receiving portion 30 is the side where the receiving portion 30 approaches the pouring structure 101 along the central axis C at the time of pouring. Contrary to these, the side along the central axis C opposite to the tip side is called the base end side. When the pouring structure 101 is connected to the receiving portion 30, the base end side of the pouring structure 101 corresponds to the tip end side of the receiving portion 30, and the base end side of the receiving portion 30 corresponds to the tip end side of the pouring structure 101. ..

In the following description, the radial direction and the circumferential direction with respect to the central axis C may be simply referred to as the radial direction and the circumferential direction, respectively. That is, the radial direction is a direction orthogonal to the central axis C. Further, the circumferential direction is a direction surrounding the central axis C. Further, the direction along the central axis C may be referred to as the axis direction. Examples of the central axis C as a reference in the dispensing direction include the central axis of the dispensing member 10, particularly the central axis of the insertion portion 12.
The spiral direction is a combined direction of the axial direction and the circumferential direction. The relative displacement in the spiral direction means that the relative displacement in the circumferential direction occurs along with the relative displacement in the axial direction.

(Injection member 10)
As shown in FIGS. 2 and 3, the dispensing member 10 has a base portion 11 and an insertion portion 12. The base portion 11 and the insertion portion 12 are integrally formed. The base portion 11 and the insertion portion 12 can be manufactured by integral molding. It is also possible to provide the base portion 11 with a structure for joining the portion on the base end side of the insertion portion 12, and to form the base portion 11 and the insertion portion 12 separately. Although not particularly shown, the insertion portion 12 may be fixed to the base portion 11 by forming a mounting hole in the center of the main plate portion 13 and mounting the insertion portion 12 in the mounting hole.

The base portion 11 has a main plate portion 13 and a ring plate portion 14. The main plate portion 13 has a first surface 13a facing the distal end side and a second surface 13b facing the proximal end side. The main plate portion 13 has, for example, a disk shape. The shape of the main plate portion 13 is not limited to the disc shape, and may be a so-called boat shape. The boat shape is a shape having V-shaped tapered protrusions on both sides facing each other in the radial direction of a substantially circular shape.

The ring plate portion 14 is formed in a cylindrical shape or an annular shape. The ring plate portion 14 projects from the second surface 13b of the main plate portion 13 toward the proximal end side. The ring plate portion 14 has substantially the same planar shape as the planar shape of the main plate portion 13, and is integrally connected to the main plate portion 13 on or near the outer periphery of the main plate portion 13. The main plate portion 13 and the ring plate portion 14 can be manufactured by integral molding. It is also possible to provide a structure for joining the main plate portion 13 and the ring plate portion 14 and to form the main plate portion 13 and the ring plate portion 14 separately. A first accommodating portion (not shown) for accommodating the contents in the first container can be joined to the base portion 11. For example, the first accommodating portion may be joined to the ring plate portion 14 by welding, adhesion, fitting, or the like.

The insertion portion 12 may have a tubular shape having a central axis C. In the illustrated example, the insertion portion 12 is substantially cylindrical. The cylindrical shape may have a wall surface surrounding the central axis C, and may not have a shape having axial symmetry with respect to the central axis C. The insertion portion 12 projects toward the tip end side from the first surface 13a of the base portion 11. The internal space of the insertion portion 12 is the pouring flow path 15 through which the fluid flows. The contents of the first container can be poured out from the opening 15a at the tip 12a of the insertion portion 12 through the pouring flow path 15.

A first key protrusion 17 is formed on the inner peripheral surface 12b of the insertion portion 12. The first key protrusion 17 projects inward in the radial direction from the inner peripheral surface 12b of the insertion portion 12. The first key protrusion 17 will be described in detail later, but the first key protrusion 17 engages with the first key groove 26 (see FIG. 4) formed on the outer peripheral surface 22c of the valve body 20 to form a first spiral. The engaging portion 41 (see FIGS. 6 and 7) is formed.

The first key protrusion 17 in the illustrated example is a hemispherical protrusion. The first key protrusions 17 are formed at two locations offset by about 180 ° in the circumferential direction of the inner peripheral surface 12b of the insertion portion 12. The shape of the first key protrusion 17 may be, for example, conical, cylindrical, pyramidal, prismatic, or the like. The first key protrusions 17 may be formed at three locations offset by about 120 ° in the circumferential direction. The shape of the first key protrusion 17, the number of the first key protrusions 17, and the spacing in the circumferential direction are arbitrary as long as they can be engaged with the first key groove 26.

A second key groove 16 is formed on the outer peripheral surface 12c of the insertion portion 12. The second key groove 16 has a second spiral groove 16a and a second introduction groove 16b. The second key groove 16 in the illustrated example is a groove having a semicircular cross section orthogonal to the length direction. The cross-sectional shape of the second key groove 16 is not limited to a semicircle, and examples thereof include a U-shape, a V-shape, a trapezoid, a rectangle, a triangle, and a polygon. The second key groove 16 engages with the second key protrusion 34 (see FIG. 1) of the receiving portion 30.

The second spiral groove 16a engages with the second key projection 34 to allow the insertion portion 12 and the receiving portion 30 to be relatively displaced in the spiral direction. That is, the engagement between the second spiral groove 16a formed on the outer peripheral surface 12c of the insertion portion 12 and the second key protrusion 34 formed on the inner peripheral surface 32a of the insertion hole 32 of the receiving portion 30 causes the spiral direction. A second spiral engaging portion 42 is formed that allows for relative displacement.

The second introduction groove 16b extends parallel to the axial direction from the tip end side of the second spiral groove 16a toward the tip end 12a of the insertion portion 12. When connecting the injection structure 101 to the receiving portion 30, the second key protrusion 34 is introduced from the second introduction groove 16b. The second key protrusion 34 also separates from the second introduction groove 16b when the injection structure 101 is removed from the receiving portion 30.

The second spiral groove 16a is refracted from the proximal end side of the second introduction groove 16b and extends in the spiral direction. When the second key protrusion 34 is displaced along the second spiral groove 16a in a direction away from the second introduction groove 16b, the receiving portion 30 is displaced from the tip end side to the proximal end side of the insertion portion 12. The angular range in the circumferential direction in which the second spiral groove 16a extends is, for example, a range of 10 ° to 180 °. When the angle range of the second spiral groove 16a is small, the angle at which the dispensing member 10 is twisted with respect to the receiving portion 30 at the time of connection is small, and the work is easier.

It is possible to arrange the second key groove 16 at two or more locations on the outer peripheral surface 12c of the insertion portion 12. In the illustrated example, the second key groove 16 is formed at two locations displaced by about 180 ° in the circumferential direction. The second key groove 16 may be formed at three locations offset by about 120 ° in the circumferential direction. The number of the second key grooves 16 arranged in the circumferential direction and the spacing in the circumferential direction are arbitrary as long as they can be engaged with the second key projection 34.

An annular rib 12d extending in the circumferential direction is formed on the outer peripheral surface 12c of the insertion portion 12. The annular rib 12d comes into contact with the inner peripheral surface 32a of the insertion hole 32 formed in the receiving portion 30 when the insertion portion 12 is inserted into the insertion hole 32. When the annular rib 12d comes into contact with the inner peripheral surface 32a of the insertion hole 32, for example, over the entire circumference in the circumferential direction, it becomes easy to secure the airtightness between the insertion portion 12 and the insertion hole 32. When the viscosity of the fluid of the contents is high, the annular rib 12d does not have to be the entire circumference in the circumferential direction, and may be formed, for example, more than half the circumference in the circumferential direction.

The narrow width of the annular rib 12d along the axial direction limits the contact area between the outer peripheral surface 12c of the insertion portion 12 and the inner peripheral surface 32a of the insertion hole 32. That is, the portion of the outer peripheral surface 12c of the insertion portion 12 other than the annular rib 12d is radially inside the annular rib 12d. Therefore, the outer peripheral surface 12c of the insertion portion 12 is less likely to come into contact with the inner peripheral surface 32a of the insertion hole 32, and the frictional resistance when the insertion portion 12 is displaced from the tip end side to the base end side of the insertion portion 30 is suppressed. Can be done.

The insertion portion 12 has a notch portion 18 penetrating the inner peripheral surface 12b and the outer peripheral surface 12c. The opening position 18a of the cutout portion 18 is arranged at the tip end 12a of the insertion portion 12. The cutout portion 18 is formed in a spiral shape from the opening position 18a toward the proximal end side of the insertion portion 12. As will be described in detail later, as shown in FIGS. 1 and 6, the engaging portion 35 of the receiving portion 30 and the engaged portion 24 of the valve body 20 can be engaged with each other through the notch portion 18.

(Valve body 20)
As shown in FIG. 1, the valve body 20 in the dispensing structure 101 is mounted in the insertion portion 12 of the dispensing member 10. The valve body 20 in the insertion portion 12 is arranged so as to be displaceable in the axial direction of the insertion portion 12. The valve body 20 can switch between a closed position P1 (see FIG. 6) that closes the pouring flow path 15 and an open position P2 (see FIG. 7) that opens the pouring flow path 15 by displacement in the axial direction. It is possible.

As shown in FIG. 4, the valve body 20 has a closing portion 21 and a tubular portion 22. The closing portion 21 closes the pouring flow path 15 at the closing position P1 described above. The closing portion 21 of the illustrated example is formed in a disk shape perpendicular to the central axis C. It is preferable that the outer diameter of the closing portion 21 is substantially equal to the inner diameter of the pouring flow path 15 or smaller than the inner diameter of the pouring flow path 15. The tubular portion 22 is formed in a cylindrical shape having the insertion portion 12 and the central axis C in common. The insertion portion 12 and the cylinder portion 22 may have a concentric cylindrical shape.

A knob portion 21a is formed on the surface of the closing portion 21 on the base end side. The knob portion 21a projects toward the base end side from the second surface 13b of the main plate portion 13 even when the closing portion 21 closes the pouring flow path 15 at the above-mentioned closing position P1. For example, when the valve body 20 is manually or device-mounted in the insertion portion 12, or when the valve body 20 is removed from the insertion portion 12, the knob portion 21a can be pinched to operate the valve body 20.

A first key groove 26 is formed on the outer peripheral surface 22c of the valve body 20. The first key groove 26 has a first spiral groove 26a and a first introduction groove 26b. The first key groove 26 in the illustrated example is a groove having a semicircular cross section orthogonal to the length direction, and is formed on the outer peripheral surface 22c of the tubular portion 22. The cross-sectional shape of the first keyway 26 is not limited to a semicircle, and examples thereof include a U-shape, a V-shape, a trapezoid, a rectangle, a triangle, and a polygon.

The first key groove 26 engages with the first key protrusion 17 (see FIG. 3) of the insertion portion 12 described above. The first spiral groove 26a engages with the first key protrusion 17 to allow the insertion portion 12 and the valve body 20 to be relatively displaced in the spiral direction. That is, the relative displacement in the spiral direction is possible by engaging the first spiral groove 26a formed on the outer peripheral surface 22c of the tubular portion 22 with the first key protrusion 17 formed on the inner peripheral surface 12b of the insertion portion 12. The first spiral engaging portion 41 (see FIGS. 6 and 7) is formed.

The first introduction groove 26b extends parallel to the axial direction from the tip end side of the first spiral groove 26a toward the tip end 22a of the tubular portion 22. When the valve body 20 is attached to the insertion portion 12, the first key protrusion 17 is introduced from the first introduction groove 26b. When the valve body 20 is removed from the insertion portion 12, the first key protrusion 17 is separated from the first introduction groove 26b.

The first spiral groove 26a is refracted from the proximal end side of the first introduction groove 26b and extends in the spiral direction. When the first key protrusion 17 is displaced along the first spiral groove 26a in a direction away from the first introduction groove 26b, the insertion portion 12 is displaced from the tip 22a side of the tubular portion 22 to the base end 22b side. The angular range in the circumferential direction in which the first spiral groove 26a extends is, for example, a range of 10 ° to 180 °. When the angle range of the first spiral groove 26a is small, the angle at which the pouring member 10 is twisted with respect to the valve body 20 at the time of connection is small, and the work is easier.

It is possible to arrange the first key groove 26 at two or more locations on the outer peripheral surface 22c of the tubular portion 22. In the illustrated example, the first key groove 26 is formed at two locations displaced by about 180 ° in the circumferential direction. The first key groove 26 may be formed at three locations offset by about 120 ° in the circumferential direction. The number of the first key grooves 26 arranged in the circumferential direction and the interval in the circumferential direction are arbitrary as long as they can be engaged with the first key projection 17.

The internal space 22d of the tubular portion 22 is divided into a plurality of flow path spaces 25a and 25b by the partition wall 25. The partition wall 25 extends in the axial direction from the tip 22a of the tubular portion 22 to the closing portion 21. In the illustrated example, the partition wall 25 divides the internal space 22d into two flow path spaces 25a and 25b in an angle range of about 180 ° in the circumferential direction. The partition wall 25 may partition the internal space 22d into three flow path spaces within an angle range of about 120 ° in the circumferential direction. The number of partition walls 25 arranged in the circumferential direction and the angle range of the flow path spaces 25a and 25b in the circumferential direction are arbitrary.

In the illustrated example, the connecting portion 23 is formed between the base end 22b of the tubular portion 22 and the closing portion 21. In the illustrated example, the connecting portions 23 are formed at two locations displaced by about 180 ° in the circumferential direction. Further, in the circumferential direction, the connecting portion 23 is arranged corresponding to the position where the partition wall 25 is in contact with the inner peripheral surface 22e of the tubular portion 22. The connecting portions 23 may be formed at three locations offset by about 120 ° in the circumferential direction. The number of connecting portions 23 arranged in the circumferential direction and the interval in the circumferential direction are arbitrary.

The connecting portion 23 of the illustrated example is a columnar shape thicker than the thickness of the partition wall 25, and is formed on both sides of the partition wall 25 in the width direction along the radial direction of the tubular portion 22. Since the partition wall 25 is thin, it is possible to secure a larger cross-sectional area of the flow path spaces 25a and 25b in the internal space 22d. Since the connecting portion 23 is integrally formed in contact with the partition wall 25, the thin partition wall 25 can be protected.

An inflow port 27 is opened between the base end 22b of the tubular portion 22 and the closing portion 21. In the illustrated example, the periphery of the base end 22b of the tubular portion 22 is widely opened as the inflow port 27, except for the portion where the connecting portion 23 is in contact with the partition wall 25. This makes it possible to suppress the residue of the contents in the first container, that is, the so-called liquid residue. In the illustrated example, the inflow port 27 is provided at two locations partitioned by the connecting portion 23 and the partition wall 25, and the inflow port 27 is connected to the flow path spaces 25a and 25b, respectively.

When the partition wall 25 has a function of connecting the closing portion 21 and the tubular portion 22, the connecting portion 23 on the outer peripheral side may be omitted. The connecting portion 23 in the illustrated example is formed at a position overlapping the wall surface of the tubular portion 22 by projection in the axial direction, but the function of the connecting portion 23 is provided at a position overlapping with the internal space 22d of the tubular portion 22 by projection in the axial direction. It may be formed.

An annular edge 28 projecting outward in the radial direction is formed on the outer peripheral surface 22c of the tubular portion 22. In the illustrated example, the annular edge 28 is arranged on the base end 22b side of the tubular portion 22. As shown in FIG. 7, the peripheral edge portion where the annular edge portion 28 protrudes from the outer peripheral surface 22c is in contact with the inner peripheral surface 12b of the insertion portion 12. As a result, when the contents are poured out, the fluid flowing from the inflow port 27 to the flow path spaces 25a and 25b via the pouring flow path 15 flows into the inner peripheral surface 12b of the insertion portion 12 and the outer peripheral surface 22c of the tubular portion 22. It becomes difficult to get into the gap with.

(Receiving part 30)
As shown in FIGS. 1 and 5, the receiving portion 30 has an insertion hole 32 into which the insertion portion 12 of the dispensing member 10 is inserted. The insertion hole 32 is formed as an internal space of the cylindrical inserted portion 31. The inserted portion 31 is formed in a cylindrical shape along the axial direction. The inserted portion 31 may have a cylindrical shape concentric with the inserting portion 12. The insertion hole 32 is a single internal space 32b opened on the tip end 31a side and the base end 31b side of the inserted portion 31.

An annular convex portion 33 protruding outward in the radial direction is formed on the outer peripheral surface of the inserted portion 31. In the illustrated example, the annular convex portion 33 is arranged on the tip 31a side of the inserted portion 31. The annular convex portion 33 may be arranged on the base end 31b side of the inserted portion 31, or may be arranged at an intermediate portion between the tip end 31a and the base end 31b. A second accommodating portion (not shown) for accommodating the contents in the second container may be joined to the outer peripheral surface or the annular convex portion 33 of the inserted portion 31.

A second key protrusion 34 is formed on the inner peripheral surface of the inserted portion 31, that is, the inner peripheral surface 32a of the insertion hole 32. The second key protrusion 34 protrudes inward in the radial direction from the inner peripheral surface 32a of the insertion hole 32. As described above, the second key protrusion 34 engages with the second key groove 16 formed on the outer peripheral surface 12c of the insertion portion 12 to form the second spiral engaging portion 42.

The second key protrusion 34 in the illustrated example is a hemispherical protrusion. The second key protrusions 34 are formed at two locations offset by about 180 ° in the circumferential direction of the inner peripheral surface 32a of the insertion hole 32. The shape of the second key protrusion 34 may be, for example, conical, cylindrical, pyramidal, or prismatic. The second key protrusions 34 may be formed at three locations offset by about 120 ° in the circumferential direction. The shape of the second key protrusion 34, the number of the second key protrusions 34, and the spacing in the circumferential direction are arbitrary as long as they can be engaged with the second key groove 16.

A mark 36 is formed on the tip end 31a of the inserted portion 31 on the outer side in the radial direction from the position of the second key protrusion 34. When inserting the insertion portion 12 of the dispensing member 10 into the insertion hole 32 of the receiving portion 30, the position of the second introduction groove 16b of the second key groove 16 can be aligned with the position of the mark 36. The mark 36 in the illustrated example is a protrusion protruding toward the tip end side of the receiving portion 30. The mark 36 is not limited to the protrusion, and may be, for example, a concave portion, a through hole, a colored portion, or the like.

An engaging portion 35 is formed on the inner peripheral surface 32a of the insertion hole 32. The engaging portion 35 projects inward in the radial direction from the inner peripheral surface 32a toward the internal space 32b. The engaging portion 35 can be engaged with the engaged portion 24 formed on the valve body 20. The engaging portion 35 is, for example, a protrusion having a rectangular cross section. The cross-sectional shape of the engaging portion 35 is not particularly limited, and may be circular, elliptical, polygonal, or the like.

In the illustrated example, the engaging portions 35 are formed at two locations offset by about 180 ° in the circumferential direction of the inner peripheral surface 32a of the insertion hole 32. Further, the engaged portions 24 are formed at two locations displaced by about 180 ° in the circumferential direction of the outer peripheral surface 22c of the tubular portion 22. The engaging portion 35 and the engaged portion 24 may be formed at three locations offset by about 120 ° in the circumferential direction. The number of engaging portions 35 and engaged portions 24 arranged in the circumferential direction and the spacing in the circumferential direction are arbitrary.

As shown in FIG. 4, the engaged portion 24 of the illustrated example is formed at a position overlapping with the first introduction groove 26b in the region extending from the tip end 22a and the outer peripheral surface 22c of the tubular portion 22. The engaged portion 24 may be formed at a position different from that of the first introduction groove 26b. When the engaged portion 24 is formed on the tip 22a side of the tubular portion 22, when the insertion portion 12 is inserted into the insertion hole 32, the engaged portion 35 formed on the inner peripheral surface 32a is inserted into the engaged portion. It can be easily engaged with 24.

In the illustrated example, in a state where the valve body 20 is mounted in the insertion portion 12, the engaged portion 24 is exposed to the outer peripheral surface 12c of the insertion portion 12 through the notch portion 18. It is also possible to form the engaged portion 24 on the inner peripheral surface 22e side of the tubular portion 22. For example, when the engaging portion 35 is projected from the inner peripheral surface 32a of the insertion hole 32 and the end portion of the engaging portion 35 is bent toward the tip end 31a side of the inserted portion 31, the engaged portion 24 is the outer peripheral surface. It does not have to be exposed to 12c.

As described above, when the second key protrusion 34 is engaged with the second key groove 16 and the second key protrusion 34 is guided along the second spiral groove 16a, it is inserted by the second spiral engaging portion 42. The portion 12 allows relative displacement in the spiral direction with respect to the receiving portion 30. At this time, between the insertion portion 12 and the valve body 20, the first spiral engagement portion 41 enables the insertion portion 12 to be relatively displaced in the spiral direction with respect to the valve body 20.

Between the valve body 20 and the receiving portion 30, the engagement between the engaging portion 35 and the engaged portion 24 regulates the relative displacement in the spiral direction between the valve body 20 and the receiving portion 30. That is, the engaging portion 35 engages with the engaged portion 24 so as not to rotate relative to each other. When the insertion portion 12 is displaced relative to the valve body 20 and the receiving portion 30 in the spiral direction, the engaging portion 35 can pass through the notch portion 18 while being engaged with the engaged portion 24.

The insertion hole 32 of the inserted portion 31 forms a single internal space 32b. This makes it easy to attach an attachment such as a pump dispenser to the insertion hole 32. For example, when injecting the contents of the first container into the second container, the insertion portion 12 is inserted after removing the attachment from the insertion hole 32. After injecting a desired amount of contents from the insertion portion 12 and removing the insertion portion 12 from the insertion hole 32, the attachment can be attached to the insertion hole 32.

In the inserted portion 31 of the illustrated example, an internal space 32b without structural obstacles is secured except that the inner peripheral surface 32a of the insertion hole 32 has the second key protrusion 34 and the engaging portion 35. The internal space 32b of the inserted portion 31 has an inner circumference around the central axis within a range of at least 50% or more, more preferably 70% or more of the radius of the inner peripheral surface 32a with respect to the inner peripheral surface 32a of the insertion hole 32. It is preferable not to have a structure protruding from the surface 32a, a partition wall for partitioning the internal space 32b, or the like.

(How to use the pouring member connection structure 100)
As shown in FIG. 1, the pouring structure 101 of the first container is brought closer to the receiving portion 30 of the second container by relative displacement. At this time, the pouring structure 101 may be brought closer to the receiving portion 30, or the receiving portion 30 may be brought closer to the pouring structure 101. The pouring structure 101 may be oriented in a desired direction such as downward, sideways, diagonally downward, etc. with respect to gravity. Since the valve body 20 is at the closing position P1 and the closing portion 21 closes the pouring flow path 15, the contents of the first container do not flow into the inserting portion 12, and leakage from the pouring structure 101 is suppressed. Will be done.

As shown in FIG. 6, when the insertion portion 12 is inserted into the inserted portion 31 while the valve body 20 remains in the closed position P1, the engaging portion 35 engages with the engaged portion 24. This regulates the relative displacement in the spiral direction between the valve body 20 and the receiving portion 30. In this state, when the pouring member 10 is rotated in the circumferential direction around the central axis C with respect to the valve body 20 and the receiving portion 30, the first spiral engaging portion 41 and the second spiral engaging portion 42 described above cause the above-mentioned first spiral engaging portion 41 and the second spiral engaging portion 42. , The pouring member 10 and the valve body 20 are relatively displaced in the axial direction.

As shown in FIG. 7, as a result of the pouring member 10 being displaced toward the base end side of the receiving portion 30 with respect to the valve body 20 and the receiving portion 30, the closing portion 21 is separated from the pouring flow path 15 and the inflow port 27 is opened. It will be opened. As a result, the valve body 20 is switched to the open position P2. The contents of the first container pass through the pouring flow path 15 and the flow path spaces 25a and 25b from the inflow port 27, and the contents are supplied to the second container from the tip 12a of the insertion portion 12.

FIG. 6 shows a cross section including a position where the engaging portion 35 engages with the engaged portion 24. FIG. 7 shows a cross section including a position where the partition wall 25 divides the flow path spaces 25a and 25b. Although the orientations of the receiving portion 30 and the like are different in FIGS. 6 and 7, it does not represent whether or not the receiving portion 30 or the like is displaced during the operation. Further, in the cross-sectional views of FIGS. 6 and 7, the annular rib 12d, the second key protrusion 34, and the like are not shown.

When the dispensing member 10 is displaced relative to the receiving portion 30, it is not particularly limited whether the dispensing member 10 or the receiving portion 30 is operated. For example, the user may operate the dispensing member 10 with respect to the receiving portion 30 while the receiving portion 30 is stopped. The first container and the second container may be incorporated into the device to displace the dispensing member 10 or the receiving portion 30 when the user operates the device or when the device recognizes the need.

When the valve body 20 is switched from the open position P2 to the closed position P1, the pouring member 10 is rotated in the direction opposite to that when the valve body 20 is switched from the closed position P1 to the open position P2. Due to the first spiral engaging portion 41 and the second spiral engaging portion 42 described above, the pouring member 10 and the valve body 20 are displaced relative to each other in the axial direction, and the pouring member 10 is displaced with respect to the valve body 20 and the receiving portion 30. Is displaced toward the tip of the receiving portion 30. As a result, the pouring flow path 15 is closed by the closing portion 21, and the valve body 20 is switched to the closing position P1. Further, when the pouring structure 101 is pulled out in a direction away from the receiving portion 30, the pouring structure 101 is pulled out away from the receiving portion 30. At this time, since the engagement of the engaging portion 35 with the engaged portion 24 is also released, the valve body 20 is integrated with the dispensing member 10 and is relatively displaced in the direction away from the receiving portion 30.

When the valve body 20 is in the open position P2, the engaging portion 35 engaged with the engaged portion 24 is housed in the spiral notch portion 18. Even if the ejection structure 101 is to be pulled out while the valve body 20 is in the open position P2, the engaging portion 35 interferes with the wall surface of the insertion portion 12 around the notch portion 18. Therefore, the pouring structure 101 cannot be pulled out with a reasonable force. As a result, it is possible to prevent the pouring structure 101 from being pulled out from the receiving portion 30 at the open position P2.

When the valve body 20 is at the closing position P1, the engaging portion 35 is located at the opening position 18a of the notch portion 18, so that the engaging portion 35 does not interfere with the wall surface of the insertion portion 12 around the notch portion 18. Therefore, the engagement of the engaging portion 35 with the engaged portion 24 is released by pulling out in the axial direction, the engaging portion 35 passes through the opening position 18a, and the valve body 20 is relative to the receiving portion 30 in the direction away from the receiving portion 30. Displace. As a result, when the valve body 20 is in the closed position P1, the pouring structure 101 can be easily pulled out from the receiving portion 30.

When the valve body 20 is in the open position P2, the tip 12a of the insertion portion 12 may protrude toward the base end 31b of the insertion portion 31 through the insertion hole 32. As a result, at the open position P2, the contents dispensed from the first container are less likely to adhere to the receiving portion 30, and the contents are easily dispensed directly into the second container. Further, at the closing position P1, the position of the tip 22a of the tubular portion 22 along the axial direction is at the same level as the tip 12a of the insertion portion 12, or is retracted toward the proximal end side of the tip 12a of the insertion portion 12. By distinguishing from, it becomes easy to visually determine whether the valve body 20 is in the closed position P1 or the open position P2.

In order to open the injection structure 101, that is, to switch the valve body 20 from the closed position P1 to the open position P2, it is necessary to rotate the valve body 20 mounted in the insertion portion 12. Since it is difficult to open the container by a direct operation on the valve body 20, the first container may be unintentionally opened or the contents may be opened by a method other than the user engaging the engaging portion 35 with the engaged portion 24. It is possible to suppress leakage.

The dispensing member connection structure 100 can be suitably applied to refilling and refilling the contents from the first container to the second container. In particular, it is suitable when using contents in which liquid leakage during refilling or refilling is a problem, for example, when targeting printing inks, seasonings, pharmaceuticals, cosmetics, detergents, chemicals, paints, fuels and the like. The fluid of the contents is not limited to liquids such as solutions and dispersions, but may be powders, granules and the like.

As described above, the device can also operate the relative displacement between the dispensing member 10 and the receiving portion 30 in the dispensing member connecting structure 100. The device for performing the relative displacement operation is not particularly limited, such as a device for supplying the contents of the first container to the second container and a device for using the contents supplied to the second container, but for example, a printing device. Examples include a copying device, a coating device, a spraying device, and a feeding device. The valve body 20 can be opened and closed, that is, switched between the closed position P1 and the open position P2 by operating the pouring member 10 or the receiving portion 30 without directly operating the valve body 20. ..

At the closing position P1, the outer peripheral surface of the closing portion 21 of the valve body 20 is preferably tightly fitted with the inner peripheral surface 12b of the insertion portion 12. The region where the outer peripheral surface of the closing portion 21 and the inner peripheral surface 12b of the insertion portion 12 are fitted is preferably a cylindrical surface having a length in the axial direction. As a result, even if there is a slight relative displacement in the spiral direction between the first key protrusion 17 and the first key groove 26 in the first spiral engaging portion 41, the closing portion 21 and the inserting portion 12 are in a fitted state. Is maintained.

When switching the valve body 20 from the open position P2 to the closing position P1 and fitting the closing portion 21 to the insertion portion 12, the large-diameter pouring member 10 may be rotated with respect to the small-diameter receiving portion 30. Since the valve body 20 is relatively fixed to the receiving portion 30 by the engaging portion 35, when the valve body 20 is rotated while grasping the large-diameter base portion 11, the small-diameter closing portion 21 can be easily inserted by the principle of leverage. It can be fitted to the portion 12. As a result, even when the user reseals the first container, the pouring flow path 15 can be reliably closed with a small force.

The injection member 10, the valve body 20, and the receiving portion 30 can each be composed of an integral molded product. In this case, the pouring member connection structure 100 can be manufactured from three members. The molding material of the injection member 10, the valve body 20 or the receiving portion 30 is not particularly limited, and examples thereof include resin, rubber, elastomer, and metal. The dispensing member 10 may be composed of two or more members. The valve body 20 may be composed of two or more members. The receiving portion 30 may be composed of two or more members.

(Packaging container)
The packaging container of the embodiment includes a first container having an injection member 10 and a valve body 20, and a second container having a receiving portion 30. The type of the container constituting the first container and the second container is not particularly limited, and examples thereof include a pouch container, a bottle container, a tube container, and a box container. The molding material of the first container and the second container is not particularly limited, and examples thereof include resin, metal, paper, and a laminate.

The dispensing member 10 may be joined to the first container separately, or the dispensing member 10 and the first container may be integrally molded. The receiving portion 30 may be joined to the second container separately, or the receiving portion 30 and the second container may be integrally molded. The first container and the second container may have different points in shape, size, type, material and the like.

The second container can have an attachment that can be attached to the insertion hole 32 of the receiving portion 30. In the second container, the attachment may be attached to the insertion hole 32 in advance. The attachment may be supplied to the manufacturer or user of the second container separately from the receiving portion 30 or the second container. When the user uses the contents of the second container, the attachment may be attached to the insertion hole 32. Examples of the attachment include a pump dispenser, a spray head, a nozzle, a cock, a guide and the like.

The attachment preferably has a flow path such as a cylinder, a tube, or a gutter. Thereby, when the contents are poured out from the second container, the flow rate, speed, direction, etc. of the pouring can be easily controlled. When the receiving portion 30 is used as a spout of the second container, the attachment may also serve as a closing tool for the second container. The second container may be provided with a closing tool such as a cap or a stopper separately from the attachment.

In the first container, the pouring flow path 15 of the pouring member 10 is closed by the valve body 20. Therefore, the valve body 20 can be used as a closing tool in the distribution, storage, and the like of the first container filled with the contents. The valve body 20 may be protected by covering the periphery of the insertion portion 12 with a cap, a label, a shrink film, or the like. When the capacity of the first container is larger than that of the second container, for example, when the capacity of the first container is several times larger than the capacity of the second container, the user can repeat the refilling to the second container a plurality of times. If the valve body 20 is set to the closing position P1, the first container in use can be sealed and the remaining contents can be stored.

Although the present invention has been described above based on the preferred embodiment, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

In the embodiment, together with the first spiral engaging portion 41, the inner peripheral surface 32a of the insertion hole 32 of the receiving portion 30 and the outer peripheral surface 12c of the inserting portion 12 are engaged with each other to spiral the insertion portion 12 and the receiving portion 30. An example is shown in which the second key protrusion 34 and the second key groove 16 are formed as the second spiral engaging portion 42 that enables relative displacement in the direction. With the second spiral engaging portion 42 omitted and the engaging portion 35 engaged with the engaged portion 24, the insertion portion 12 and the valve body 20 are moved in the spiral direction using the first spiral engaging portion 41. It is also possible to relatively displace the insertion portion 12 and the valve body 20 in the axial direction while making relative displacements.

If the gap between the inner peripheral surface 32a of the insertion hole 32 and the outer peripheral surface 12c of the insertion portion 12 is made larger, the frictional resistance can be reduced during the relative displacement in the spiral direction. By forming an annular rib 12d in contact with the inner peripheral surface 32a of the insertion hole 32 on the outer peripheral surface 12c of the insertion portion 12, even if the gap between the inner peripheral surface 32a and the outer peripheral surface 12c is increased, the gap from this gap can be increased. It is possible to suppress fluid leakage and the like. The annular rib 12d may be projected inward in the radial direction from the inner peripheral surface 32a of the insertion hole 32 so as to be in contact with the outer peripheral surface 12c of the insertion portion 12.

The insertion portion 12 or the cylinder portion 22 may be provided with a mark or the like indicating whether or not the valve body 20 is at the closing position P1 or the degree of opening of the inflow port 27 at the opening position P2. The display may be provided based on the positional relationship between the tip 12a of the insertion portion 12 and the tip 22a of the cylinder portion 22. Further, the display may be provided on the outer peripheral surface 22c of the tubular portion 22 exposed from the notch portion 18. The display may be provided based on the positional relationship of the partition wall 25 of the valve body 20 that is visible from the tip end 12a side of the insertion portion 12. The display may be composed of concave portions, convex portions, colored portions and the like. Thereby, even if the direct operation on the valve body 20 is suppressed as compared with the cap or the like, the state of the valve body 20 mounted inside the insertion portion 12 can be easily grasped from the outside of the insertion portion 12.

C ... central axis, P1 ... closed position, P2 ... open position, 10 ... pouring member, 11 ... base, 12 ... insertion part, 12a ... tip of insertion part, 12b ... inner peripheral surface of insertion part, 12c ... insertion part 12d ... annular rib, 13 ... main plate, 13a ... main plate first surface, 13b ... main plate second surface, 14 ... ring plate, 15 ... pouring flow path, 15a ... opening, 16 ... 2nd key groove, 16a ... 2nd spiral groove, 16b ... 2nd introduction groove, 17 ... 1st key protrusion, 18 ... notch, 18a ... notch opening position, 20 ... valve body, 21 ... closing part , 21a ... Knob, 22 ... Cylinder, 22a ... Cylinder tip, 22b ... Cylinder base end, 22c ... Cylinder outer peripheral surface, 22d ... Cylinder internal space, 22e ... Cylinder inner peripheral surface , 23 ... connecting portion, 24 ... engaged portion, 25 ... partition wall, 25a, 25b ... flow path space, 26 ... first key groove, 26a ... first spiral groove, 26b ... first introduction groove, 27 ... inflow port. , 28 ... annular edge, 30 ... receiving portion, 31 ... inserted portion, 31a ... tip of inserted portion, 31b ... base end of inserted portion, 32 ... insertion hole, 32a ... inner peripheral surface of insertion hole, 32b ... Internal space, 33 ... annular convex portion, 34 ... second key protrusion, 35 ... engaging portion, 36 ... mark, 41 ... first spiral engaging portion, 42 ... second spiral engaging portion, 100 ... pouring member Connection structure, 101 ... Injection structure.

Claims (7)

An injection member having an insertion portion having an injection flow path through which a fluid flows, a valve body provided in the insertion portion so as to be displaced in the axial direction, and a receiving portion having an insertion hole into which the insertion portion is inserted. And, with
The valve body can switch between an open position for opening the pouring flow path and a closing position for closing the pouring flow path by displacement in the axial direction.
The valve body has a tubular portion having an internal space and a partition wall for partitioning the internal space into a plurality of flow path spaces.
The receiving portion has a cylindrical inserted portion having the insertion hole, and the receiving portion has a cylindrical inserted portion.
The injection member connecting structure, wherein the insertion hole is a single internal space opened on the distal end side and the proximal end side of the inserted portion. The pouring member connection structure according to claim 1, wherein an annular rib that contacts the inner peripheral surface of the insertion hole is formed on the outer peripheral surface of the insertion portion. The pouring flow path is opened at the tip of the insertion portion, and the pouring flow path is open.
The pouring member connecting structure according to claim 1 or 2, wherein the tip of the insertion portion projects toward the proximal end side of the inserted portion through the insertion hole at the open position. Spiral engaging portions are formed on the inner peripheral surface of the insertion portion and the outer peripheral surface of the valve body so as to engage with each other and enable relative displacement of the insertion portion and the valve body in the spiral direction.
An engaged portion is formed on the valve body, and an engaged portion is formed.
Any one of claims 1 to 3, wherein the receiving portion has an engaging portion that engages with the engaged portion so as to be relatively non-rotatable when the dispensing member is inserted into the insertion hole. The pouring member connection structure described in the section. The engaging portion is formed so as to project from the inner peripheral surface of the insertion hole toward the single internal space.
The insertion portion is characterized by having a spiral notch portion that allows the engagement portion engaged with the engaged portion to pass through when the valve body is relatively displaced in the spiral direction. The dispensing member connection structure according to claim 4. A first container having the dispensing member and the valve body of the dispensing member connecting structure according to any one of claims 1 to 5, and a second container having the receiving portion of the dispensing member connecting structure. A packaging container, characterized in that it comprises. The packaging container according to claim 6, wherein the second container has an attachment that can be attached to the insertion hole of the receiving portion.

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