JP2020179874A - Spouting member insertion structure and packaging container - Google Patents

Abstract

To provide a spouting member insertion structure capable of suppressing leakage of contents in work for connecting a spouting member to a connection destination.SOLUTION: A spouting member insertion structure 10A is provided with a spouting member 10 having an insertion part 12, a valve element 20 provided axially movably in the insertion part 12, and an inserted part 5 having an insertion hole 5a into which the insertion part 12 is inserted. First spiral engagement parts which are engaged with each other and enable relative movement of the insertion part 12 and the valve element 20 in the spiral direction are respectively formed on the inner peripheral surface of the insertion part 12 and the outer peripheral surface of the valve element 20. The valve element 20 can switch its position between an open position where flow paths 13, 14 are opened and a close position where the flow paths 13, 14 are closed at the end of the insertion part 12 in the insertion direction by the axial movement.SELECTED DRAWING: Figure 7

Description

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

For example, an ink container filled with ink is connected to the printing apparatus. The ink container includes a pouring member having an insertion portion. The printing apparatus includes an inserted portion having an insertion hole. The insertion portion of the injection member is connected to the printing device by being inserted into the insertion hole of the insertion portion. As a result, the ink in the ink container can be supplied to the printing apparatus. As a connection structure including an inserted portion and an insertion portion inserted into the inserted portion, there is a connecting member described in Patent Document 1.

Special Table 2001-511416 Publication No.

The contents of the pouring member may leak when connected to the connected device. Therefore, it is required to suppress leakage of contents in the connection work.

One aspect of the present invention provides an injection member insertion structure and a packaging container capable of suppressing leakage of contents in the work of connecting the injection member to the connection destination.

One aspect of the present invention is an injection member having an insertion portion whose inside is a flow path of fluid, a valve body provided so as to be movable in the axial direction in the insertion portion, and an insertion hole into which the insertion portion is inserted. The insertion portion and the outer peripheral surface of the valve body are engaged with each other to enable relative movement of the insertion portion and the valve body in the spiral direction. Each of the spiral engaging portions of 1 is formed, and the valve body has an open position for opening the flow path by the axial movement and a closing position for closing the flow path at the end of the insertion portion in the insertion direction. Provided is a pouring member insertion structure capable of switching between.

The insertion portion includes a cylindrical tubular portion whose inside is the flow path, and a tip protruding portion provided at the end of the tubular portion in the insertion direction, and the fluid flows through the tip protruding portion. It is preferable that the valve body is provided with a closing plate for closing the flow port.

It is preferable that the distribution port has a circular shape centered on the axis when viewed from the axial direction, and the closing plate has a circular shape concentric with the distribution port when viewed from the axial direction.

A second spiral engaging portion that engages with each other and enables relative movement in the spiral direction is formed on the inner peripheral surface of the insertion hole and the outer peripheral surface of the insertion portion, respectively, and the second spiral engagement portion is formed. The spiral angle of the portion is preferably equal to the spiral angle of the first spiral engaging portion.

Another aspect of the present invention provides a packaging container including the dispensed member having the dispensed member insertion structure and the container.

According to one aspect of the present invention, leakage of contents can be suppressed in the work of connecting the injection member to the connection destination.

It is a perspective view of the pouring member device of an embodiment. It is a perspective view of the pouring member of the pouring member insertion structure of an embodiment. It is a side view of a part of the pouring member of the pouring member insertion structure of an embodiment. It is a side view which saw a part of the pouring member of the pouring member insertion structure of an embodiment from the side opposite to the previous figure. It is a perspective view of the valve body of the pouring member insertion structure of embodiment. It is a perspective view which looked at the valve body of the pouring member insertion structure of embodiment from the side opposite to the previous figure. It is sectional drawing of the injection member insertion structure of embodiment. It is sectional drawing explaining the operation of the pouring member insertion structure of embodiment. It is sectional drawing explaining the operation of the pouring member insertion structure of embodiment.

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

[Injection member insertion structure]
FIG. 1 is a perspective view of the dispensing member device 100 of the embodiment. FIG. 2 is a perspective view of the dispensing member 10. FIG. 3 is a side view of a part of the dispensing member 10. FIG. 4 is a side view of a part of the dispensing member 10 as viewed from the side opposite to FIG. FIG. 5 is a perspective view of the valve body 20. FIG. 6 is a perspective view of the valve body 20 as viewed from the side opposite to that of FIG. FIG. 7 is a cross-sectional view of the dispensing member insertion structure 10A.
In the following description, the XYZ Cartesian coordinate system may be adopted. As shown in FIG. 1, the X direction is the width direction of the main plate portion 4. The Y direction is the length direction of the main plate portion 4. The Y direction is orthogonal to the X direction in the plane along the main plate portion 4. The Z direction is the thickness direction of the main plate portion 4. The Z direction is orthogonal to the X and Y directions. Planar view means viewing in parallel with the Z direction.

The vertical positional relationship is tentatively determined according to FIG. That is, in FIG. 7, the upward direction is referred to as upward, and the downward direction is referred to as downward. The positional relationship defined here does not limit the posture when the injection member insertion structure 10A is used.

As shown in FIG. 1, the dispensing member device 100 includes a dispensing member 10 and a receiving portion 30.
The receiving portion 30 includes a main plate portion 4, an inserted portion 5, a bottom plate portion 6, and a regulation convex portion 7. The pouring member insertion structure 10A (pouring member connecting structure) of the embodiment has a pouring member 10 and an inserted portion 5.

The main plate portion 4 is roughly formed in a rectangular shape.
The inserted portion 5 is formed in a tubular shape protruding downward from one surface (lower surface) of the main plate portion 4. The internal space of the inserted portion 5 is an insertion hole 5a. The cross section of the insertion hole 5a along the XY plane is circular. C2 is the central axis of the insertion hole 5a. The direction along the central axis C2 is the axial direction of the inserted portion 5.

As shown in FIGS. 1 and 7, a first key protrusion 41 and a second key protrusion 42 are formed on the inner peripheral surface 5b of the insertion hole 5a. The first key protrusion 41 and the second key protrusion 42 are, for example, hemispherical protrusions. The first key protrusion 41 and the second key protrusion 42 project from the inner peripheral surface 5b in a direction approaching the central axis of the insertion hole 5a. The first key protrusion 41 and the second key protrusion 42 are formed, for example, at positions displaced by about 180 ° in the axial direction with respect to the central axis of the insertion hole 5a. That is, the angle (inter-projection angle) around the axis between the first key protrusion 41 and the second key protrusion 42 is about 180 °.
The first key protrusion 41 and the second key protrusion 42 are "second spiral engaging portions" formed on the inner peripheral surface 5b of the insertion hole 5a.

A bottom plate portion 6 is formed at the lower end of the inserted portion 5. A flow hole 6a, which is a through hole through which a fluid flows, is formed in the bottom plate portion 6.
The regulation convex portion 7 projects upward from the bottom plate portion 6. The regulation convex portion 7 is, for example, a columnar shape. An engaging portion 8 is formed on the tip surface 7a of the regulation convex portion 7. The engaging portion 8 projects upward from the tip surface 7a. The engaging portion 8 is non-circular in a plan view, and when engaged with the engaging receiving portion 24, the displacement of the valve body 20 in the direction around the central axis C1 can be regulated. The engaging portion 8 is, for example, a cross-shaped protrusion when viewed from the axial direction of the inserted portion 5. The engaging portion 8 is inside the inserted portion 5 and engages with the engaging receiving portion 24 so as not to rotate relative to each other.

As shown in FIG. 7, the dispensing member 10 is attached to the opening 35a of the container body 35 of the container 34. The injection member 10 has a base portion 11 and an insertion portion 12. As shown in FIG. 1, the base 11 may be, for example, a so-called boat shape. As shown in FIG. 7, the base portion 11 is attached to the opening 35a of the container body 35.

As shown in FIG. 2, the insertion portion 12 includes a tubular portion 12A and a tip protruding portion 12B. The tubular portion 12A has a cylindrical shape. The insertion portion 12 projects downward in FIG. 7 from the first surface 11a (lower surface in FIG. 7) of the base portion 11. C1 is the central axis of the dispensing member 10, that is, the central axis of the insertion portion 12. The direction along the central axis C1 is the axial direction of the dispensing member 10.

The tip protruding portion 12B is formed in a disk shape and is provided at the end portion (lower end portion in FIG. 7) of the tubular portion 12A in the insertion direction. The tip protruding portion 12B protrudes inward from the end portion (lower end portion in FIG. 7) of the tubular portion 12A. A distribution port 16 is formed in the tip protruding portion 12B. The distribution port 16 has a circular shape concentric with the tip protruding portion 12B when viewed from the axial direction of the dispensing member 10. The inner diameter of the distribution port 16 is smaller than the outer diameter of the tip protruding portion 12B.

As shown in FIG. 1, a flow path 13 is formed in the base 11 along the Z direction. The internal space of the insertion portion 12 is the flow path 14. The flow paths 13 and 14 can allow the contents of the container body 35 (see FIG. 7) to be poured out from the distribution port 16 of the insertion portion 12.

As shown in FIGS. 2 to 4, a first key groove 43 and a second key groove 44 are formed on the outer peripheral surface of the insertion portion 12 (cylinder portion 12A). The first key groove 43 and the second key groove 44 are, for example, grooves having a semicircular cross section orthogonal to the length direction.

As shown in FIG. 3, the first key groove 43 has a first main groove 45 and a first refraction groove 47. The first keyway 43 fits into the first key projection 41 (see FIGS. 1 and 7). The first key groove 43 (specifically, the first refraction groove 47) and the first key projection 41 engage with each other to enable relative movement in the spiral direction.

As shown in FIG. 4, the second key groove 44 has a second main groove 46 and a second refraction groove 48. The second keyway 44 fits into the second key projection 42 (see FIGS. 1 and 7). The second key groove 44 (specifically, the second refraction groove 48) and the second key projection 42 are engaged with each other to enable relative movement in the spiral direction.

The spiral angle of the key grooves 43 and 44 (specifically, the refraction groove 47 and the refraction groove 48) is equal to the spiral angle of the key grooves 53 and 54 of the valve body 20. The key grooves 43 and 44 (specifically, the refraction groove 47 and the refraction groove 48) are "second spiral engaging portions" formed on the outer peripheral surface of the insertion portion 12.

As shown in FIGS. 3 and 4, the first main groove 45 and the second main groove 46 extend from the tip end 12a of the insertion portion 12 in a direction approaching the base portion 11 along the central axis C1. The first refracting groove 47 and the second refracting groove 48 extend in the direction refracted from the ends 45a and 46a of the first main groove 45 and the second main groove 46. The first refraction groove 47 and the second refraction groove 48 have a spiral shape around the central axis C1.

The first refracting groove 47 and the second refracting groove 48 are inclined with respect to the central axis C1 in the direction approaching the base 11 from the respective ends 45a and 46a of the first main groove 45 and the second main groove 46. Extend. The inclination directions of the first refracting groove 47 and the second refracting groove 48 are the same as each other. The first refraction groove 47 and the second refraction groove 48 are formed in a range of 10 ° to 180 ° in the direction around the central axis C1, for example. When this angle is 120 ° or less, the dispensing member 10 is less twisted at the time of connection, and the work is easier.

As shown in FIG. 2, the first key groove 43 and the second key groove 44 are formed at positions displaced by about 180 ° in the direction around the central axis C1. That is, the angle (inter-groove angle) around the central axis C1 between the deepest portion of the first key groove 43 and the deepest portion of the second key groove 44 is about 180 °. This inter-groove angle is equal to the inter-projection angle (see FIG. 1) between the first key projection 41 and the second key projection 42. The inter-groove angle between the first key groove 43 and the second key groove 44 is not limited to 180 ° and can be any angle.

A first key protrusion 51 and a second key protrusion 52 are formed on the inner peripheral surface 12b (see FIG. 7) of the insertion portion 12 (cylinder portion 12A). The first key protrusion 51 and the second key protrusion 52 are, for example, hemispherical protrusions. The first key protrusion 51 and the second key protrusion 52 project from the inner peripheral surface 12b of the insertion portion 12 in a direction approaching the central axis C1. The first key protrusion 51 and the second key protrusion 52 are formed, for example, at positions displaced by about 180 ° in the axial direction with respect to the central axis C1. The angle between the protrusions between the first key protrusion 51 and the second key protrusion 52 is about 180 °.
The first key protrusion 51 and the second key protrusion 52 are "first spiral engaging portions" formed on the inner peripheral surface 12b of the insertion portion 12. The angle between the protrusions between the first key protrusion 51 and the second key protrusion 52 is not limited to 180 ° and can be any angle.

As shown in FIG. 7, the valve body 20 is provided inside the insertion portion 12 so as to be movable in a direction (axial direction) along the central axis C1.
As shown in FIGS. 5 and 6, the valve body 20 includes a closing plate 21, a tubular portion 22, and a plurality of connecting portions 23.

The tubular portion 22 has a cylindrical shape. A first key groove 53 and a second key groove 54 are formed on the outer peripheral surface of the tubular portion 22. The first key groove 53 and the second key groove 54 have a spiral shape around the central axis C1. The first key groove 53 and the second key groove 54 extend in an inclined direction with respect to the central axis C1 in a direction approaching the closing plate 21.

The first key groove 53 fits into the first key protrusion 51. The first key groove 53 and the first key protrusion 51 are engaged with each other to enable relative movement in the spiral direction. The second key groove 54 fits into the second key protrusion 52. The second key groove 54 and the second key protrusion 52 are engaged with each other to enable relative movement in the spiral direction.
The first key groove 53 and the second key groove 54 are "first spiral engaging portions" formed on the outer peripheral surface of the valve body 20.

The closing plate 21 is formed in a disk shape concentric with the tubular portion 22. The outer diameter of the closing plate 21 is substantially equal to the inner diameter of the distribution port 16 (see FIG. 7) or slightly larger than the inner diameter of the distribution port 16. The closing plate 21 can close the distribution port 16. The closing plate 21 is perpendicular to the central axis C1. The closing plate 21 is located at a position separated downward from the tubular portion 22.

As shown in FIG. 5, a concave engaging receiving portion 24 (engaged portion) that engages with the engaging portion 8 of the inserted portion 5 is formed on the tip surface 21a of the closing plate 21. The engagement receiving portion 24 has a shape corresponding to the engaging portion 8. The engagement receiving portion 24 has, for example, a cross shape when viewed from the axial direction of the valve body 20. When the tip of the engaging portion 8 is fitted to the engaging receiving portion 24, the displacement of the valve body 20 in the direction around the central axis C1 is restricted.

The connecting portion 23 has a columnar shape along the axial direction, and connects the closing plate 21 and the tubular portion 22. The plurality of connecting portions 23 are formed at intervals in the direction around the central axis C1. Therefore, when the closing plate 21 separates from the tip protruding portion 12B (see FIG. 9), the fluid in the inserting portion 12 flows out from the distribution port 16 through the gap between the closing plate 21 and the tubular portion 22.

In FIG. 7, the valve body 20 is at the closing position P1 where the closing plate 21 closes the distribution port 16. At the closing position P1, the closing plate 21 closes the distribution port 16 by fitting into the distribution port 16. The valve body 20 can also take an open position P2 (see FIG. 9) that opens the distribution port 16. At the opening position P2, the closing plate 21 opens the distribution port 16 by moving away from the distribution port 16.

[How to use the injection member insertion structure]
Next, a method of using the injection member insertion structure 10A will be described. First, an operation of inserting the insertion portion 12 of the injection member 10 into the insertion hole 5a will be described.
As shown in FIG. 7, the closing plate 21 of the valve body 20 closes the distribution port 16. Therefore, the leakage of the contents of the insertion portion 12 is suppressed.

As shown in FIG. 8, the insertion portion 12 of the injection member 10 is aligned with the insertion hole 5a of the insertion portion 5. At that time, the positions of the first key groove 43 and the second key groove 44 (see FIG. 2) are aligned with the positions of the first key protrusion 41 and the second key protrusion 42, respectively. The central axis C1 of the dispensing member 10 coincides with the central axis C2 of the insertion hole 5a.

When the insertion portion 12 is inserted into the insertion hole 5a, the first key protrusion 41 and the second key protrusion 42 have the first main groove 45 and the second main groove 46 of the first key groove 43 and the second key groove 44, respectively. (See FIGS. 3 and 4).

When the insertion portion 12 is moved with respect to the insertion portion 5 in the insertion direction, the first key protrusion 41 and the second key protrusion 42 advance in the first main groove 45 and the second main groove 46, respectively, and the terminal 45a, Reach 46a (see FIGS. 3 and 4).
When the insertion portion 12 is displaced in the spiral direction around the central axis C1, the first key protrusion 41 and the second key protrusion 42 enter the first refraction groove 47 and the second refraction groove 48, respectively. As a result, the insertion portion 12 is displaced in the insertion direction (lower side of FIG. 8) while rotating.

In FIGS. 7 and 8, the closing plate 21 is fitted in the distribution port 16, and the lower surface of the closing plate 21 and the lower surface of the tip protruding portion 12B are at the same height.

As shown in FIG. 9, when the engaging portion 8 is fitted to the engaging receiving portion 24, the displacement of the valve body 20 in the direction around the central axis C1 is restricted. On the other hand, since the displacement of the insertion portion 12 in the spiral direction is not hindered, the insertion portion 12 continues to be displaced in the spiral direction. At this time, the key protrusions 51 and 52 of the insertion portion 12 advance in the key grooves 53 and 54 (see FIGS. 5 and 6).

Since the insertion portion 12 is displaced in the insertion direction (lower part of FIG. 9) while the valve body 20 maintains the height position, the closing plate 21 is separated from the distribution port 16. Therefore, the content (fluid) of the container 34 flows out from the distribution port 16 through the gap between the closing plate 21 and the tubular portion 22. The contents are supplied to the storage container (not shown) through the flow hole 6a via the inserted portion 5.
The insertion of the insertion portion 12 into the insertion hole 5a is completed when the first key protrusion 41 and the second key protrusion 42 reach the ends of the first refraction groove 47 and the second refraction groove 48, respectively.

Next, an operation of pulling out the insertion portion 12 of the dispensing member 10 from the insertion hole 5a will be described.
As shown in FIG. 9, the insertion portion 12 is displaced in the pull-out direction (upper part of FIG. 9) while rotating in the direction opposite to that at the time of insertion. In this process, the key projections 41 and 42 advance in the refraction grooves 47 and 48, and the key projections 51 and 52 advance in the key grooves 53 and 54. As shown in FIG. 8, since the distribution port 16 reaches the closing plate 21 as the insertion portion 12 rises, the flow paths 13 and 14 are closed by closing the distribution port 16.

When the engaging portion 8 is disengaged from the engaging receiving portion 24, the rotation restriction of the valve body 20 is released, so that the valve body 20 moves integrally with the inserting portion 12.
After the key protrusions 41 and 42 reach the ends 45a and 46a (see FIGS. 3 and 4), the insertion portion 12 is displaced in the pull-out direction (upper part of FIG. 8). As a result, as shown in FIG. 7, the insertion portion 12 is pulled out from the insertion hole 5a.

[Effect of the injection member insertion structure]
As shown in FIG. 7, the valve body 20 at the closing position P1 closes the flow port 16 at the end of the insertion portion 12 in the insertion direction. Therefore, in the work of connecting the injection member 10 to the inserted portion 5, it is possible to suppress the leakage of the contents of the inserting portion 12.

Since the flow port 16 of the valve body 20 can be closed by the closing plate 21, the distribution port 16 can be easily closed by shifting the height of the closing plate 21 from the tip protruding portion 12B as shown in FIG. Can be released.

The distribution port 16 has a circular shape centered on the central axis C1, and the closing plate 21 has a circular shape concentric with the distribution port 16. Therefore, the displacement between the distribution port 16 and the closing plate 21 due to the rotation of the insertion portion 12 is unlikely to occur. Therefore, the closing plate 21 can reliably close the distribution port 16.

In the injection member insertion structure 10A, the key protrusions 41 and 42 are formed on the inner peripheral surface of the insertion hole 5a, and the key grooves 43 and 44 are formed on the outer peripheral surface of the insertion portion 12, so that the insertion portion 12 can be pulled out. At that time, the closing plate 21 of the valve body 20 closes the distribution port 16. Therefore, it is possible to suppress leakage of the contents in the work of pulling out the injection member 10 from the inserted portion 5.

Since the key grooves 43 and 44 have refraction grooves 47 and 48 in addition to the main grooves 45 and 46, the traveling direction changes in the process in which the key protrusion advances in the key groove, so that the operator can use the pouring member. It is easy to confirm the completion of the insert operation. Therefore, the pouring member insertion structure 10A is excellent in operability.

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. For example, as shown in FIG. 5, in the valve body 20, the engaging portion 8 has a cross shape, but the shape of the engaging portion is not limited to the cross shape. The shape of the engaging portion may be, for example, a single character shape or a polygonal shape, as long as the displacement in the direction around the central axis of the valve body can be regulated when engaged with the engaging receiving portion.

In the dispensing member insertion structure 10A shown in FIG. 1, the key protrusions 41 and 42 are formed in the inserted portion 5 and the key grooves 43 and 44 are formed in the dispensing member 10, but the dispensing member 10 and the inserted member 10 are inserted. The structure of part 5 is not limited to this. In the dispensing member insertion structure, a key projection may be formed on either the outer peripheral surface of the insertion portion or the inner peripheral surface of the insertion hole, and a key groove into which the key projection is fitted may be formed on the other. Therefore, contrary to the dispensing member insertion structure 10A shown in FIG. 1, a key groove may be formed in the inserted portion and a key protrusion may be formed in the dispensing member.

In the dispensing member insertion structure 10A shown in FIG. 1 and the like, two key protrusions 41 and 42 are formed on the inserted portion 5 and two key protrusions 51 and 52 are formed on the insertion portion 12. The number of key protrusions formed on the inserted portion and the inserted portion is not limited to two, and may be one or any number of three or more. In the injection member insertion structure 10A, two key grooves 43 and 44 are formed in the insertion portion 12, and two key grooves 53 and 54 are formed in the valve body 20. The number of keyways formed in the insertion portion and the valve body is not limited to two, and may be one or any number of three or more.

The base portion and the insertion portion constituting the dispensing member may be integrated or separate. When the base portion and the insertion portion are separate bodies, for example, the following structure can be adopted. The base portion has a through hole (not shown) into which a part of the insertion portion is inserted. A part of the insertion portion is connected to the base portion by uneven fitting, screw fitting, or the like in a state of being inserted into the through hole. The base portion and the insertion portion may be detachable.

If the base and the insertion part are separate, the following usage is possible. The base is attached to the container. With the insertion part removed from the base, the container is filled with the contents through the through hole. The insert is then attached to the base. According to this method, since the contents can be filled in the container through the through hole of the base instead of the insertion portion, the contents flow into the container smoothly and the filling operation becomes easy.

The dispensing member 10 shown in FIG. 1 and the container 34 (see FIG. 7) on which the dispensing member 10 is mounted constitute a packaging container.

In the dispensing member insertion structure 10A shown in FIG. 1 and the like, when the valve body 20 moves to the container 34 side, the flow paths 13 and 14 of the dispensing member 10 open, and when the valve body 20 moves to the inserted portion 5, the flow flows. Roads 13 and 14 close. The pouring member insertion structure is not limited to this, and the flow path of the pouring member closes when the valve body moves to the container side, and the flow path of the pouring member opens when the valve body moves to the inserted portion side. An open structure may be adopted.

In the dispensed member insertion structure, an engaged portion is formed in the valve body, and when the dispensed member is inserted into the insertion hole in the inserted portion, the engaged portion is inside the inserted portion. The configuration may be such that an engaging portion that engages with the joint portion so as not to rotate relative to the joint portion is formed.

The pouring member insertion structure of the present invention can be suitably applied to refilling or refilling the contents of a 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, toiletry products, seasonings, pharmaceuticals, medical / inspection equipment, fuels, and the like. ..

5 ... Inserted part, 5a ... Insert hole, 10 ... Injection member, 10A ... Dispensing member insertion structure, 12 ... Insert part, 12A ... Cylinder part, 12B ... Tip protruding part, 13, 14 ... Flow path, 16 ... Distribution port, 20 ... valve body, 21 ... closing plate, 24 ... engaging receiving part (engaged part), 34 ... container, 35a ... opening, 41 ... first key protrusion (second spiral engaging part) , 42 ... 2nd key protrusion (2nd spiral engaging portion), 47 ... 1st bending groove (2nd spiral engaging portion), 48 ... 2nd bending groove (2nd spiral engaging portion), 51 ... 1st key protrusion (1st spiral engaging portion), 52 ... 2nd key protrusion (1st spiral engaging portion), 53 ... 1st key groove (1st spiral engaging portion), 54 ... 2 keyway (first spiral engaging portion), C1 ... central axis (axis) of the pouring member, P1 ... closed position, P2 ... open position.

Claims (5)

An injection member having an insertion portion whose inside is a fluid flow path, a valve body provided so as to be movable in the axial direction in the insertion portion, and an inserted portion having an insertion hole into which the insertion portion is inserted. Prepare,
A first 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 movement of the insertion portion and the valve body in the spiral direction. Being done
The valve body can be switched between an open position for opening the flow path and a closing position for closing the flow path at the end of the insertion portion in the insertion direction by moving in the axial direction. Construction. The insertion portion includes a cylindrical tubular portion whose inside is the flow path, and a tip protruding portion provided at an end portion of the tubular portion in the insertion direction.
A flow port through which the fluid flows is formed in the tip protrusion.
The dispensing member insertion structure according to claim 1, wherein the valve body includes a closing plate that closes the distribution port. The distribution port has a circular shape centered on the axis when viewed from the axis direction.
The pouring member insertion structure according to claim 2, wherein the closing plate has a circular shape concentric with the distribution port when viewed from the axial direction. A second spiral engaging portion that engages with each other and enables relative movement in the spiral direction is formed on the inner peripheral surface of the insertion hole and the outer peripheral surface of the insertion portion, respectively, and the second spiral engagement portion is formed. The dispensing member insertion structure according to any one of claims 1 to 3, wherein the spiral angle of the portion is equal to the spiral angle of the first spiral engaging portion. A packaging container comprising the dispensing member having the dispensing member insertion structure according to any one of claims 1 to 4 and the container.

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