JP7316868B2 - Spout for pouring, spout for pouring with stopper member, container with spout for pouring - Google Patents

Description

TECHNICAL FIELD The present invention relates to a spout for pouring, a spout for pouring with a stopper member, and a container with a spout for pouring, which can be suitably used for a refillable container or the like.

For liquid seasonings such as soy sauce and toiletry products such as liquid detergents, in addition to products that contain the contents in resin packaging containers, refills that contain supplementary contents (fluids such as liquids and powders) are also available. Providing a container is often done.
Packaging containers that are used repeatedly include bottle-shaped containers (hereinafter also referred to as bottle containers). A refilling container provided for replenishing the contents of a bottle container has a pouring cylinder for pouring out the contents, and it is conventional to simply insert the pouring cylinder into the mouth and neck of the bottle container to refill the bottle. Met. In recent years, in order to prevent leakage during refilling and to improve workability, the refill container has a cylindrical pouring tube with a closed tip and a spout opening on the peripheral wall, and a pouring tube in the pouring tube. and a ring-shaped movable member externally inserted so as to be movable in the axial direction, and having a spout for opening and closing the spout of the pouring tube by moving the movable member in the axial direction of the pouring tube. (For example, Patent Document 1).

The movable member of the pouring spout of the refillable container disclosed in Patent Document 1 is a cylindrical member that is inserted outside the pouring tube and moves in the axial direction relative to the pouring tube to open and close the spout on the peripheral wall of the pouring tube. a spout closing part, a flange-like connecting part projecting from the outer circumference of the spout closing part, a pressing part formed on the outer circumference of the connecting part and pressed against the neck of the bottle container, and protruding from the outer circumference of the connecting part It has a positioning engaging portion that is formed and engages the inner or outer peripheral surface of the neck portion of the bottle container.
The pouring spout for the refillable container disclosed in Patent Document 1 has a pouring port closing portion of a movable member arranged at the tip of the pouring tube to close the pouring port so that the content (liquid) of the refillable container is exposed to the outside air. can be prevented from touching

The pouring spout is closed by the pouring spout closing portion of the movable member, and in a state in which leakage of the contents from the pouring spout is prevented, the portion of the movable member is pressed against the neck portion of the bottle container from above. can be pressed and the positioning engaging portion of the movable member can be engaged with the inner peripheral surface or the outer peripheral surface of the mouth and neck portion. In addition, in this spout for pouring, the pressing portion of the movable member is pressed against the neck portion of the bottle container, and the positioning engagement portion of the movable member is engaged with the inner peripheral surface or the outer peripheral surface of the neck portion. By moving the pouring tube downward with respect to the movable member, projecting downward from the movable member, inserting it into the mouth and neck, and opening the pouring port of the peripheral wall of the pouring tube inside the mouth and neck, the inside of the refill container It is configured so that the contents can be filled into the bottle container through the pouring tube.

In addition, a plurality of air holes are formed at intervals in the circumferential direction in the connecting portion of the movable member of the pouring spout of Patent Document 1. In the pouring spout of Patent Document 1, as the contents flow from the refillable container to the refillable container, the air in the refillable container is released to the outside through the ventilation hole of the connecting portion of the movable member. ing.

JP 2014-80218 A

In the above-mentioned Patent Document 1, the pouring spout presses the pressing portion of the movable member against the neck portion of the bottle container from above, and the positioning engagement portion of the movable member is placed on the inner peripheral surface or the outer peripheral surface of the neck portion. By engaging, the pressing portion of the movable member is stably maintained in contact with the opening peripheral edge portion of the mouth and neck portion.
However, due to its structure, the spout for pouring of the conventional configuration does not correspond to the opening peripheral edge of the neck of the bottle container unless the size of the positioning engagement portion of the movable member matches the inner or outer peripheral surface of the neck of the bottle container. It is difficult to stably maintain the contact state of the pressing portion of the movable member. For this reason, the pouring spout of the conventional configuration needs to be assembled using a movable member having a positioning engagement portion of a suitable size for each size of the inner or outer peripheral surface of the neck portion of the bottle container.
In addition, the spout for pouring of Patent Document 1 requires time and effort to insert or externally insert the positioning engagement portion of the movable member that fits the inner or outer peripheral surface of the neck portion of the bottle container into or out of the neck portion of the bottle container. It is easy to cause inconvenience such as hanging.

The problem to be solved by the aspect of the present invention is to facilitate insertion/removal and positioning of the insertion direction with respect to the mouth and neck of a container to be filled such as a bottle container to be filled with contents from the refillable container. To provide a pouring spout, a pouring spout with a stopper member, and a pouring spout-equipped container that can evacuate the container to be filled and smoothly fill the container to be filled with the contents. It is to be.

In order to solve the above problems, the present invention provides the following aspects.
A spout for pouring according to a first aspect includes a spout body including a mounting portion attached to a container in which contents are stored and a pouring cylinder portion protruding from the mounting portion, and the pouring cylinder portion of the spout body. The spout body is supported by the mounting portion, the spout tube portion, and a support piece projecting from the spout tube portion. a sealing fitting portion which is formed at a position spaced apart from the pouring tube portion toward the tip side thereof and is fitted to the inside of the tip portion of the outer sleeve to seal the inside of the tip portion of the outer sleeve; and a contents flow path formed through the attachment part including the inside of the ejecting tube part, the contents flow path being secured between the sealing fitting part and the tip of the pouring tube part. The outer sleeve includes a cylindrical sleeve body that is externally fitted to the spout body and that the sealing fitting portion is detachably fitted to the distal end portion, and a proximal end portion of the sleeve body. Stoppers are formed to protrude from both sides in the left-right direction perpendicular to the axis of the sleeve body, and are brought into contact with the tip of the neck of the container into which the sleeve body is inserted to restrict the displacement of the sleeve body in the insertion direction with respect to the neck of the container. The lateral dimension of the proximal end of the sleeve composed of the proximal end of the outer sleeve and the stopper protrusions on both sides in the lateral direction is equal to the proximal end of the outer sleeve at the proximal end of the sleeve. and the dimension in the longitudinal direction perpendicular to the axis of the outer sleeve and greater than the dimension at a position passing through the axis of the proximal end of the outer sleeve.
Between the stopper projections on both sides in the left-right direction in the circumferential direction, the base end of the sleeve body is provided on both sides in the longitudinal direction perpendicular to the axial direction and the left-right direction of the sleeve body at the base end of the sleeve body. An exposed stopper protrusion-free region may be secured.
The stopper protrusion has a pair of side end faces extending parallel to each other in the left-right direction, and the pair of side end faces of the stopper protrusion on one side in the left-right direction is the same as that of the stopper protrusion on the other side in the left-right direction. It may be located on the extension of the pair of side end surfaces.
The spout body has a plurality of tip side walls extending from the tip of the spout tube to the outer circumference of the sealing fitting part, and the spout extends in the circumferential direction of the side face of the spout body. It may be secured between the tip side walls adjacent to each other.
A spout for pouring with a stopper member according to the second aspect is a part located around the base end opposite to the tip of the pouring cylinder part in the mounting part of the spout body, in addition to the spout for pouring described above. The attachment of the outer sleeve to the spout body, which is provided in a stopper arrangement area secured between a certain sleeve receiving portion and the outer sleeve and whose tip portion is fitted to the sealing fitting portion of the spout body. and a stopper member for restricting movement toward the portion side, and the stopper member can be removed from the stopper arrangement area by a pulling force in a direction perpendicular to the axis line of the pouring tube portion.
The stopper member is arranged in a state of protruding from the interposed piece and the interposed piece protruding from the interposed piece and arranged in the stopper arranged region of the pouring spout toward the side of the stopper arranged region. It may also have a handle piece that is attached.
The stopper member may have a pair of interposed pieces that extend from the handle piece and detachably hold the pouring tube portion of the spout body from both sides thereof.
A pouring spout-equipped container according to a third aspect is such that the attachment portion of the pouring spout or the pouring spout of the pouring spout with a stopper member is attached to the container, and A distribution channel is in communication with the interior region of the container.

The pouring spout according to the present invention can be easily inserted into and removed from the neck of a container to be filled, such as a bottle container, and positioned in the insertion direction with respect to the neck of the container to be filled, such as a bottle container for filling contents from a refillable container. In addition, the container to be filled can be evacuated as the contents are filled from the refillable container to the container to be filled, and the filling of the container to be filled can be smoothly performed.

Fig. 2 is a front cross-sectional view showing a state in which the pouring spout according to the embodiment of the present invention is inserted into the neck portion of the container to be filled. Figure 2 is a side cross-sectional view of the pouring spout of Figure 1; Fig. 2 is a front cross-sectional view showing a state in which the spout of the contents channel of the spout body of the spout for pouring of Fig. 1 is opened; Figure 4 is a side cross-sectional view of the pouring spout of Figure 3; Fig. 2 is an overall perspective view showing an assembled state of the pouring spout with a stopper member. FIG. 6 is an exploded perspective view of the pouring spout with stopper member of FIG. 5 ; FIG. 2 is a perspective view showing the structure of the outer sleeve of the pouring spout of FIG. 1 as seen from its distal end side; FIG. 6 is a cross-sectional plan view showing the relationship between the pouring cylinder portion of the spout body of the pouring spout and the stopper member in the pouring spout with the stopper member of FIG. 5 ; FIG. 10 is a diagram illustrating the relationship between the outer sleeve arranged at the insertion limit position with respect to the packaging container and the upper opening of the air passage opening at the tip of the neck portion of the packaging container; Fig. 3 is a front cross-sectional view for explaining the relationship between the axial dimension of the main cylindrical portion of the sleeve body of the outer sleeve and the axial dimension of the opening and neck portion of the packaging container. FIG. 11 is a plan view showing a first modified example of the outer sleeve; FIG. 11 is a plan view showing a second modification of the outer sleeve; FIG. 11 is a plan view showing a third modified example of the outer sleeve; FIG. 11 is a plan view showing a fourth modified example of the outer sleeve; It is a front view explaining the modification of a spout main body. 16 is an enlarged perspective view showing the structure of the tip portion of the spout body of FIG. 15; FIG. FIG. 16 is a front cross-sectional view showing a state in which the outer sleeve of the pouring spout employing the spout body of FIG. FIG. 18 is a front cross-sectional view showing a state in which the spout body of the pouring spout of FIG. 17 is pushed into the outer sleeve at the insertion limit position with respect to the packaging container and arranged at the push limit position. FIG. 19 is a cross-sectional view taken along the line AA of FIG. 18;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, in each drawing used for the following description, the scale of each member is appropriately changed so that each member has a recognizable size.

1 to 4 show a refillable container 110 (spouted container) with a spout 10 for pouring attached to a container portion 111 according to one embodiment of the present invention.
FIG. 5 shows an assembled state of a pouring spout 10A having a pouring spout 10 and a stopper member 40 detachably attached to the pouring spout 10. As shown in FIG.
FIG. 6 is an exploded perspective view showing the pouring spout 10A with a stopper member.

As shown in FIGS. 1 to 6, the pouring spout 10 of this embodiment includes a mounting portion 21 attached to a container portion 111 (container) of a refillable container 110 and a pouring tube portion protruding from the mounting portion 21. 22, and an outer sleeve 30 fitted around the spout tube portion 22 of the spout body 20 so as to be movable in its axial direction.

In this specification, the pouring spout 10 will be described with the base end side being the attachment portion 21 side of the spout body 20 and the tip end side of the pouring tube portion 22 projecting from the attachment portion 21 being the tip end side. do. Regarding the spout body 20 and the outer sleeve 30 as well, the base end side of the pouring spout 10 will be described as the base end side, and the tip end side of the pouring spout 10 will be described as the tip end side.
Regarding the pouring spout 10, the axial direction of the tubular pouring tube portion 22 of the spout body 20 is also referred to as the axial direction or the spout axial direction.

The spout body 20, the outer sleeve 30, and the stopper member 40 shown in FIGS. 5 and 6 of the pouring spout 10 shown in FIGS. 1 to 6 are integrally molded synthetic resin products.
The pouring tube portion 22 of the spout body 20 of the pouring spout 10 shown in FIGS. 1 to 6 is formed in a cylindrical shape.

The outer sleeve 30 shown in FIGS. 1 to 6 includes a cylindrical sleeve body 31 externally inserted into the pouring tube portion 22 of the spout body 20 so as to be movable in the axial direction, and a sleeve extending from the base end of the sleeve body 31. It has stopper protrusions 32 protruding to both sides in the left-right direction perpendicular to the axis of the body 31 .

Inside the container portion 111 of the refillable container 110, the content, which is a fluid made of tangible substances such as liquid and powder, is accommodated. Examples of liquid contents include liquid seasonings such as soy sauce, liquid detergents, and liquid cosmetics. Powder contents can include salt, sugar, pepper, granular seasonings, powdered detergents, and the like.

As shown in FIGS. 1 and 3, the spout body 20 has a spouting tube portion 22 and a spouting protrusion 26 including a sealing fitting portion 24 provided on the distal end side of the spouting tube portion 22 . The pouring protrusion 26 includes the pouring tube part 22 and the pouring tube part 22 in the spout body 20 , and refers to the entirety of the part that protrudes from the attachment part 21 to the tip side.

The spout main body 20 is formed with a content flow path 25 through which the content in the container portion 111 is poured out from a pouring port 25b that opens toward the tip of the pouring tube portion 22 on the side surface of the tip portion of the pouring protrusion 26. ing. Spout body 20 includes a content channel 25 .
The content flow path 25 is formed so as to include the inner side of the pouring tube portion 22 and penetrate the attachment portion 21 . The content flow path 25 includes a base end opening 25a, which is an opening that opens in the center of a base end side surface 21a (base end surface) of the mounting portion 21 on the side opposite to the pouring tube portion 22 side, and a spout main body. Twenty pouring projections 26 include a side pouring port 25b at the tip.
The content channel 25 is formed extending from the base end opening 25a at one end to the spout body 20 including the outlet 25b at the other end.

A base end opening 25 a opened in the mounting portion 21 is positioned inside the container portion 111 of the refill container 110 . The content channel 25 communicates with the inner region of the container portion 111 of the refill container 110 .
The pouring spout 10 allows the content in the container part 111 that has flowed into the content flow path 25 from the base end opening 25a opened in the mounting part 21 to flow into the contents opened on the tip side of the pouring protrusion 26. It can be poured out from the outlet 25 b of the distribution channel 25 .

A portion 33 of the sleeve body 31 of the outer sleeve 30 shown in FIGS. 1 to 6, which extends from the stopper protrusion 32 toward the distal end side, is hereinafter also referred to as a main tubular portion or an outer sleeve main tubular portion. As shown in FIGS. 1 and 3, a refillable container 110 having a pouring spout 10 includes an outer sleeve main cylindrical portion 33 of the pouring spout 10 and a spout body 20 inside thereof as a packaging container 120 (container to be filled). It can be used for the filling operation of filling the contents in the container part 111 into the packaging container 120 by inserting it into the cylindrical neck part 121 (container neck part) formed to protrude from the outside.

The packaging container 120 shown in FIGS. 1-4 is a bottle container.
The packaging container 120 has a container body 124 with a protruding neck portion 121 . The neck portion 121 is formed to protrude from the container body 124 .

The container body 124 of the packaging container 120 is positioned below the neck portion 121 when the packaging container 120 is oriented so that the tip of the neck portion 121 is the upper end (hereinafter also referred to as an upward state). When the packaging container 120 is turned upward, the neck portion 121 protrudes upward from the upper end of the container body 124 .

As shown in FIGS. 1 to 4, the neck portion channel 123 inside the neck portion 121 of the packaging container 120 communicates with the inner region of the container body 124 . The container main body 124 has a container-like shape in which an inner region having a cross section perpendicular to the axis of the neck portion channel 123 is larger than that of the neck portion channel 123 and has a bottom wall that closes the bottom side opposite to the neck portion 121 . is formed in

As shown in FIGS. 1 to 4, the container body 124 of the packaging container 120, which is a bottle container, includes a shoulder portion 122 extending from the proximal end opposite to the distal end of the neck portion 121, and an outer circumference of the shoulder portion 122. and a tubular body 125 extending from the bottom wall to the bottom wall. The cylindrical body portion 125 extends downward from the outer periphery of the shoulder portion 122 to the bottom wall when the packaging container 120 is in an upward state.

The shoulder portion 122 of the container body 124 of the packaging container 120 illustrated in FIGS. 1 to 4 extends perpendicularly to the axial direction of the cylindrical neck portion 121 around the base end of the neck portion 121 .
However, the shoulder portion 122 of the container body 124 of the packaging container 120 may be, for example, a tapered cylindrical shape that increases in diameter as it separates from the base end of the neck portion 121 toward the tip of the neck portion 121 .

As shown in FIGS. 1, 3, and 6, the spout body 20 protrudes from the mounting portion 21, the discharge tube portion 22, and the inner peripheral surface of the content flow path 25 formed through the spout body 20. A flow channel partition wall 23 that divides the content flow channel 25 into a plurality of divided flow channels 25c, and a seal formed at the tip portion of the flow channel partition wall 23 that protrudes toward the tip (protruding end) side of the pouring tube portion 22. and a fitting portion 24 .
The sealing fitting part 24 is formed in a disk shape extending perpendicularly to the axis of the pouring tube part 22 at the tip of the flow path partition wall 23 .

As shown in FIGS. 1 and 3, the flow path partition wall 23 extends from the inner peripheral surface of the flow path main portion, which is the portion of the content flow path 25 positioned at the mounting portion 21 and the pouring tube portion 22 of the spout body 20. The projecting contents channel 25 is divided into a plurality of regions (divided channels 25c) in a cross-sectional (hereinafter also simply referred to as a cross-sectional) direction perpendicular to its axis. The flow channel partition wall 23 is formed in a long plate shape extending over the entire axial length of the flow channel main portion of the content flow channel 25 .

1 and 3 are front cross-sectional views of the pouring spout 10 viewed perpendicularly to both sides of the long plate-like channel partition wall 23 of the spout body 20. As shown in FIG.
2 and 4 are side cross-sectional views of the pouring spout 10 taken along an imaginary plane extending parallel to the axis of the pouring tube portion 22 at the central portion of the thickness of the channel partition wall 23 of the spout body 20. be.

As shown in FIGS. 6 and 8, the spout body 20 has only one channel partition wall 23 that divides the content channel 25 into two in the cross-sectional direction in the content channel 25. The contents channel 25 has a configuration in which two divided channels 25c are formed.
However, the spout body 20 is not limited to the configuration in which the content flow path 25 is divided into two divided flow paths 25c by the flow path partition wall 23, and the content flow path 25 is divided into three or more flow paths by the flow path partition wall 23. A configuration divided into channels 25c is also possible.
The number and shape (cross-sectional shape perpendicular to the axis of the contents channel 25) of the channel partition walls 23 can be appropriately set according to the number of the divided channels 25c formed.

As shown in FIGS. 1, 3, and 6, the channel partition wall 23 of the spout body 20 of the pouring spout 10 of this embodiment extends from the pouring tube portion 22 to the tip side thereof (opposite to the mounting portion 21). side) and has a protruding tip portion 23a that protrudes.
The sealing fitting portion 24 is formed in a disk shape coaxial with the pouring cylinder portion 22 at the protruding end portion 23 a of the flow path partition wall 23 . The sealing fitting portion 24 has portions that protrude from the tip of the long-plate-shaped channel partition wall 23 (the tip of the projecting tip portion 23a) to both sides in the thickness direction.

As shown in FIG. 6, the spout body 20 protrudes from the projecting tip 23a of the channel partition wall 23 and the tip of the channel partition wall 23 of the sealing fitting portion 24 to both sides in the thickness direction of the channel partition wall 23. A reinforcing rib 24a integrally formed with the projecting tip portion 23a of the flow path partition wall 23 and the sealing fitting portion 24 is included at an internal corner portion between the two portions.
However, the spout body 20 can also adopt a configuration in which the reinforcing ribs 24a are omitted.

A sealing fitting portion 24 of the spout body 20 is supported by the pouring tube portion 22 via a channel partition wall 23 . The channel partition wall 23 serves as a support piece for supporting the sealing fitting portion 24 on the pouring tube portion 22 .

The pouring protrusion 26 of the spout body 20 refers to the entire portion of the spout body 20 that protrudes from the mounting portion 21 to the tip side.
1, 3, and 6, the pouring projection 26 includes the pouring tubular portion 22, a portion located on the tip side in the axial direction of the spout from the mounting portion 21 of the channel partition wall 23, and a sealing fit. and joint 24 .

As shown in FIG. 1 , the sealing fitting portion 24 is formed in a ring shape that can be fitted and closely attached to the inner side of the front end portion of the main cylinder portion 33 of the outer sleeve 30 . The sealing fitting portion 24 is fitted inside the front end portion of the main tubular portion 33 of the outer sleeve 30 to seal the entire inside of the front end portion of the main tubular portion 33 of the outer sleeve 30 .
As shown in FIG. 3 , the sealing fitting portion 24 is detachable from the inside of the front end portion of the outer sleeve main tubular portion 33 , and is detachably fitted to the inside of the front end portion of the outer sleeve main tubular portion 33 . combined.

As shown in FIGS. 1, 3, and 6, the sealing fitting portion 24 is located at a distance from the tip of the pouring cylinder portion 22 to the side opposite to the mounting portion 21 (the tip side of the pouring cylinder portion 22). formed.
The content channel 25 of the spout body 20 includes a channel tip region 25 d that is a region (space) secured between the tip of the spout tube portion 22 and the sealing fitting portion 24 . The pouring port 25b of the content flow path 25 is an opening that opens between the tip of the pouring cylinder portion 22 and the outer peripheral portion of the sealing fitting portion 24 on the side surface of the pouring protrusion 26. As shown in FIG.

As shown in FIGS. 2, 4, and 6, the stopper protrusion 32 of the outer sleeve 30 is formed in a plate shape extending perpendicularly to the axial direction of the sleeve body 31. As shown in FIGS.
As shown in FIGS. 2 and 4, the surface of the stopper protrusion 32 on the tip side of the outer sleeve 30 (the tip side of the sleeve main body 31) serves to hold the sleeve main body 31 together with the pouring tube portion 22 inside thereof and the packaging container 120 (to be filled). When it is inserted into a cylindrical neck portion 121 (hereinafter also referred to as a container neck portion) protruding from the container, it can abut on the tip of the container neck portion 121 . The surface of the stopper protrusion 32 on the distal end side of the outer sleeve 30 is hereinafter also referred to as a mouth/neck abutting surface 32a.

The mouth and neck abutting surfaces 32a of the stopper projections 32 on both left and right sides of the sleeve body 31 (hereinafter also referred to as left and right sides) extend on the same plane perpendicular to the axial direction of the sleeve body 31. .
As shown in FIGS. 2 and 4, the stopper protrusion 32 of the outer sleeve 30 abuts the neck portion 121 of the packaging container 120 into which the sleeve body 31 of the outer sleeve 30 is inserted (contact surface 32a). contact) serves to restrict displacement of the sleeve body 31 in the insertion direction with respect to the container neck portion 121 .
The displacement of the sleeve main body 31 in the insertion direction with respect to the container neck portion 121 means an increase in the insertion length of the sleeve main body 31 with respect to the packaging container 120 .

2, 4, and 6, the surface (base end main surface) of the stopper protrusions 32 on the left and right sides of the outer sleeve 30 on the base end side of the outer sleeve 30 (base end side of the sleeve main body 31) A sleeve base end surface 35 extending on the same plane perpendicular to the axial direction of the sleeve main body 31 is formed together with the base end surface of the sleeve 31 .

The outer sleeve 30 can be slid in the axial direction of the spout tube 22 of the spout body 20 while sliding the inner peripheral surface of the sleeve body 31 onto the spout tube 22 . The outer sleeve 30 is slid relative to the pouring tube portion 22 in the direction of the axis of the pouring tube portion 22 while maintaining the state in which the axis of the sleeve body 31 is parallel to the axis of the pouring tube portion 22 by the pouring tube portion 22 . be able to.
The outer sleeve 30 can also be rotated in the side circumferential direction of the spout tube 22 with respect to the spout body 20 while sliding the inner peripheral surface of the sleeve body 31 onto the spout tube 22 .

The outer sleeve 30 maintains a state in which the mouth/neck abutting surface 32 a and the sleeve base end surface 35 are perpendicular to the axis of the spout tube 22 by the spout tube 22 of the spout body 20 . The outer sleeve 30 slides relative to the pouring tube portion 22 in the axial direction of the pouring tube portion 22 while maintaining a state in which the neck abutting surface 32a and the sleeve base end surface 35 are perpendicular to the axis of the pouring tube portion 22. can be made

The outer sleeve 30 is a portion positioned around the proximal end of the pouring tube portion 22 in the mounting portion 21 of the spout body 20 by sliding the pouring tube portion 22 relative to the pouring tube portion 22 of the spout body 20 in the axial direction. A sleeve base end surface 35 can be brought into contact with a certain sleeve receiving portion 21c. The sleeve body 31 of the outer sleeve 30 and the stopper protrusions 32 on both sides in the left-right direction can be brought into contact with the sleeve receiving portion 21c of the mounting portion 21 .
The outer sleeve 30 can slide toward the proximal end of the spout body 20 with respect to the spout body 20 until the outer sleeve 30 abuts against the sleeve receiving portion 21 c of the mounting portion 21 .

In the pouring spout 10 illustrated in FIGS. 1 to 4, a sleeve receiving surface 21d extending perpendicularly to the axis of the pouring tube portion 22 is formed on the spout main body 20 distal end side of the sleeve receiving portion 21c of the mounting portion 21. It is
As shown in FIGS. 3 and 4, the outer sleeve 30 can be brought into contact with the sleeve receiving surface 21d of the sleeve receiving portion 21c of the mounting portion 21 so that the sleeve base end surface 35 is overlapped.

As shown in FIGS. 5 and 6, the attachment portion 21 of the spout body 20 includes a main attachment portion 21b to which the film forming the container portion 111 of the refillable container 110 is bonded from both sides, and a main attachment portion 21b to which the spout main body 20 It has a ring plate-like sleeve receiving portion 21c formed on the distal end side. The sleeve receiving portion 21c is formed in the shape of a ring plate extending perpendicularly to the axis of the pouring tube portion 22. As shown in FIG. The sleeve receiving portion 21c has an outer peripheral portion that protrudes around the attachment main portion 21b in the direction perpendicular to the axis of the pouring cylinder portion 22. As shown in FIG. A sleeve receiving surface 21d of the sleeve receiving portion 21c is a surface opposite to the main mounting portion 21b of the sleeve receiving portion 21c.
As shown in FIG. 3, when the proximal end of the outer sleeve 30 is brought into contact with the sleeve receiving portion 21c of the mounting portion 21, the sleeve proximal end surface 35 of the outer sleeve 30 is entirely in contact with the sleeve receiving portion 21c of the mounting portion 21. It is superimposed on the surface 21d.

A proximal sleeve surface 35 of the outer sleeve 30 shown in FIGS. 1-7 constitutes the proximal end of the outer sleeve 30 .
The outer sleeve 30 is limited to a structure having a sleeve base end surface 35 extending perpendicularly to the axial direction of the sleeve body 31 by the base end side main surfaces of the stopper protrusions 32 on both left and right sides and the base end surface of the sleeve body 31. not.
The proximal end of the outer sleeve has, for example, a structure in which stopper projections 32 on both left and right sides are formed at positions spaced apart from the proximal end of the sleeve body 31 to the distal side at the proximal end of the sleeve body 31 (hereinafter referred to as sleeve body proximal end projections). It may also be referred to as a structure).

When the base end of the sleeve body 31 is brought into contact with the sleeve receiving portion 21c of the mounting portion 21 of the spout body 20, the outer sleeve having the sleeve body proximal end protruding structure is configured to be in contact with the sleeve receiving portion 21c of the mounting portion 21 and the sleeve receiving portion 21c. Between the portion 21c and the stopper projection 32 arranged to be spaced from the tip of the spout body 20, there is a clearance to the extent that the stopper projection 32 can be pushed toward the tip of the spout body 20 with the tip of a finger (clearance for pushing). ) is preferably ensured.
In addition, the outer sleeve having the sleeve main body proximal end protruding structure has a portion (outer protruding portion) where the stopper protruding portion 32 protrudes outward from the sleeve receiving portion 21c of the mounting portion 21 of the spout main body 20 in the radial direction of the pouring cylinder portion 22. It is more preferable to have

The outer sleeve, which has a protruding structure at the proximal end of the sleeve main body and can secure a pushing clearance between itself and the sleeve receiving portion 21c when brought into contact with the sleeve receiving portion 21c of the mounting portion 21, has the stopper protrusion 32 as the outer sleeve. can be used as an operation part for moving the to the tip side with respect to the spout body 20. As a result, the operation of moving the outer sleeve, which is in contact with the sleeve receiving portion 21c of the mounting portion 21, toward the tip of the spout body 20 relative to the spout body 20 can be easily performed.

The configuration in which the stopper protrusion 32 has a portion (outer protrusion) that protrudes outward from the sleeve receiving portion 21c of the mounting portion 21 of the spout body 20 in the radial direction of the spout tube portion 22 is the same as that of the stopper protrusion 32 on both the left and right sides. It is also applicable to an outer sleeve having a sleeve proximal end surface 35 extending perpendicularly to the axial direction of the sleeve body 31 by the proximal side main surface and the proximal end surface of the sleeve body 31 .
The outer sleeve having the stopper protrusion 32 secured with the outer protrusion can be used as an operating portion for moving the outer sleeve toward the tip side with respect to the spout body 20 .

As shown in FIGS. 7 and 9, the left and right stopper projections 32 of the outer sleeve 30 each have a pair of side end surfaces 32b extending parallel to each other in the left-right direction. The pair of side end faces 32b of the stopper protrusion 32 on one side in the left-right direction are positioned on extensions of the pair of side end faces 32b of the stopper protrusion 32 on the other side in the left-right direction.

As shown in FIGS. 6, 7, and 9, the proximal end of the sleeve body 31 of the outer sleeve 30 is located on both sides in the longitudinal direction perpendicular to the axial direction and the lateral direction of the sleeve body 31 at the proximal end of the sleeve body 31. A region 36 (stopper protrusion-free region) exposed between the stopper protrusions 32 on both left and right sides in the circumferential direction is secured. No stopper protrusion 32 is formed in the stopper protrusion-free region 36 .

6, 7, and 9, the region 36 without stopper projections at the proximal end of the sleeve body 31 of the outer sleeve 30 has a linear shape extending in the axial direction of the sleeve body 31 between the stopper projections 32 on both left and right sides. is secured to
The stopper protrusions 32 of the outer sleeve 30 are formed to extend from the left and right regions of the base end of the sleeve main body 31 via stopper protrusion-free regions 36 on both front and rear sides in the circumferential direction.

As shown in FIGS. 1 and 3 , the outer sleeve 30 includes a fitting receiving portion 34 that protrudes around the entire inner circumference of the distal end portion of the main cylindrical portion 33 .
Specifically, the sealing fitting portion 24 of the spout body 20 is formed so as to be fittable and closely attached to the inside of the fitting receiving portion 34 of the outer sleeve 30 . The side surface of the sealing fitting portion 24 is formed so as to be able to come into close contact with the inner peripheral surface of the fitting receiving portion 34 of the outer sleeve 30 .
The sealing fitting portion 24 is formed to have a diameter slightly smaller than that of the pouring tube portion 22 of the spout body 20 .

As shown in FIGS. 3, 4, and 6, the spout body 20 includes locking protrusions 24b that protrude from the side surfaces of the sealing fitting portion 24. As shown in FIGS.
The locking projection 24b of the spout body 20 shown in FIGS. As shown in FIGS. 3, 4 and 7, the inner peripheral surface of the fitting receiving portion 34 of the outer sleeve 30 has a groove-shaped locking recess 34a into which the locking projection 24b of the spout body 20 is inserted and fitted. is formed extending over the entire circumference.

As shown in FIGS. 1 and 2, when the sealing fitting portion 24 is fitted inside the fitting receiving portion 34 of the outer sleeve 30, the locking protrusion 24b is formed on the inner peripheral surface of the fitting receiving portion 34. The outer sleeve 30 is positioned with respect to the spout body 20 by being inserted into the formed engaging recess 34a. In addition, the locking projection 24b inserted into the locking recess 34a of the inner peripheral surface of the fitting receiving portion 34 increases the axial movement resistance of the extraction tube portion 22 against the sealing fitting portion 24 of the outer sleeve 30, It serves to prevent accidental withdrawal of the outer sleeve 30 from the sealing fitting 24 .

The locking projection 24b is forcibly inserted into the locking recess 34a of the fitting receiving portion 34 by moving the outer sleeve 30 relative to the spout body 20 toward the proximal end of the spout body 20 with a finger. can be removed.

The locking projection 24b has a projection dimension from the side surface of the sealing fitting portion 24 as the portion on the tip side of the spout body 20 from the top portion with the maximum projection dimension from the side surface of the sealing fitting portion 24 goes to the tip side of the spout body 20. It is possible to preferably employ a configuration in which the taper is formed so that the
The locking protrusion 24b may have, for example, a semicircular or triangular cross-section perpendicular to the side circumferential direction of the sealing fitting portion 24 .

The locking projection 24b is not limited to a rib-like shape extending over the entire circumference of the side surface of the sealing fitting portion 24, and may be a projection formed on a part of the side surface of the sealing fitting portion 24 in the circumferential direction. good.
The locking recess 34a on the inner peripheral surface of the fitting receiving portion 34 of the outer sleeve 30 is formed into a shape into which the locking protrusion 24b of the spout body 20 can be inserted and fitted.

As shown in FIG. 3, the outer sleeve 30 can contact the sleeve receiving portion 21c of the mounting portion 21 of the spout body 20 from the distal end side of the projection 26 for pouring.
The position where the proximal end of the outer sleeve 30 abuts against the sleeve receiving portion 21c from the distal end side of the projection 26 for pouring is the movement limit position (base end movement limit position) to the proximal end side with respect to the spout body 20. ing.

The outer sleeve 30 slides relative to the pouring projection 26 in the axial direction of the spout so that the spout main body 20 moves between the base end movement limit position where it abuts against the sleeve receiving portion 21c and the distal end portion of the outer sleeve main cylindrical portion 33. The fitting position in which the inner fitting receiving portion 34 fits into the sealing fitting portion 24 of the spout body 20 can be switched.
The axial dimension of the outer sleeve 30 is between the outer sleeve 30 arranged at the fitting position with respect to the spout body 20 and the mounting portion 21 (specifically, the sleeve receiving portion 21c) of the spout body 20. The spout is sized so as to secure a separation distance from the pouring protrusion 26 that enables sliding movement in the axial direction of the spout.

As shown in FIGS. 6 and 8, the stopper member 40 has a C-ring-shaped interposed piece 41 and a handle piece 42 projecting from the interposed piece 41 .
The handle piece 42 includes a base piece portion 43 that protrudes from the side surface of the curved outer peripheral side of the central portion in the extending direction (curved circumferential direction) of the interposed piece 41 that extends in a C-ring shape, and a base piece portion. 43 has an overhanging piece portion 44 projecting sideways from the tip opposite to the interposed piece 41 .

As shown in FIG. 5, the interposed piece 41 is inserted into the stopper arrangement region 11 secured between the outer sleeve 30 arranged at the fitting position with respect to the spout body 20 and the sleeve receiving portion 21c of the spout body 20. Can be placed.
A height dimension 41T (see FIG. 6), which is a dimension of the interposition piece 41 in a direction along the axis of its curve (curvature axis), is determined by the outer sleeve 30 arranged at the fitting position with respect to the spout body 20 and the spout body. 20 and the sleeve receiving portion 21c (see FIG. 1).

As shown in FIGS. 1 and 2, the portion 22a of the pouring cylinder portion 22 of the spout body 20 located in the stopper arrangement area 11 is hereinafter also referred to as an arrangement area extension portion.
The intervening piece 41 is detachably attached to the outside of the arrangement area extending portion 22a of the pouring tube portion 22 .

FIG. 8 shows a state in which the interposition piece 41 of the stopper member 40 is attached to the arrangement area extension part 22a of the pouring tube part 22 and arranged in the stopper arrangement area 11 of the spout 10 for pouring.
The stopper member 40 is attached to the pouring spout 10 by attaching the interposition piece 41 to the placement area extension part 22a of the pouring cylinder part 22 and arranging it in the stopper placement area 11 of the pouring spout 10. . Also, the spout 10A for pouring with a stopper member is put into an assembled state by attaching the stopper member 40 to the spout 10 for pouring.

As shown in FIG. 8 , the radius of curvature of the inner peripheral side of the curvature of the interposed piece 41 is equal to the outer diameter of the arrangement area extension portion 22 a of the pouring cylinder portion 22 .
A spaced distance 41L between both ends in the extending direction (curved circumferential direction) of the interposed piece 41 that is curved and extended in a C-ring shape is smaller than the outer diameter of the arrangement area extending portion 22a of the pouring tube portion 22 . The interposed piece 41 elastically deforms the extending portions extending from the base piece portion 43 of the handle piece 42 to both sides to temporarily widen the distance between the tips of the pair of extending portions to form the arrangement area of the pouring tube portion 22 . It is attached to and detached from the extension portion 22a.
Extending portions of the interposed piece 41 extending from the base piece portion 43 of the handle piece 42 to both sides function as interposed pieces arranged in the stopper arrangement region 11 respectively.

As shown in FIG. 8, the distance 41L between the extending direction ends of the interposing piece 41 is set to 5 to 40% of the outer diameter of the arrangement area extending portion 22a of the pouring tube portion 22, for example.
However, it is also possible to employ a configuration in which the interposed pieces 41 are in contact with each other at both ends in the extending direction when the insertion tube portion 22 is not mounted or when the insertion tube portion 22 is mounted.
In addition, when the interposing piece 41 is not attached to the pouring tube portion 22 or when it is attached to the pouring tube portion 22, a cutout portion is formed at one of both ends in the extending direction so as to be recessed from the tip thereof. In addition, it is also possible to employ a configuration in which the projecting piece formed at the other of the extending direction end portions enters.

The interposed piece 41 of the stopper member 40 is arranged in the stopper arrangement region 11 to restrict the movement of the outer sleeve 30 arranged at the fitting position with respect to the spout body 20 toward the base end side of the pouring tube portion 22 . .
The intervening piece 41 arranged in the stopper arrangement region 11 is inadvertently pushed toward the proximal end of the spouting tube portion 22 , and the contents of the spout main body 20 are broken. To prevent the outlet 25b of the distribution channel 25 from being opened.

The base piece 43 of the stopper member 40 shown in FIGS. 6, 8, etc. is formed on the side surface of the curved outer peripheral side of the central portion in the extending direction (curving circumferential direction) of the interposing piece 41 that extends in a C-ring shape. It is formed in a plate shape perpendicular to the tangential direction.
A base piece portion 43 shown in FIGS. 6, 8, etc. is a portion that extends from the central portion of the stopper member 40 in the extending direction of the interposed piece 41 to the side opposite to the curved axis of the interposed piece 41. It has a bridging portion 43 a that bridges between the mounting piece 41 and the overhanging piece portion 44 of the handle piece 42 .

5 and 6, the base piece portion 43 has an extension plate portion 43b that extends from the bridge portion 43a to one side of the interposition piece 41 in the curved axial direction. The extending plate portion 43b is directly connected to the bridging portion 43a of the base piece portion 43 and the overhanging piece portion 44 and is integrally formed. However, the extending plate portion 43b is not directly connected to the interposed piece 41, but is formed integrally with the interposed piece 41 via the bridging portion 43a.

The base piece portion 43 having the extending plate portion 43b is less prone to bending or deformation of the bridging portion 43a than, for example, a configuration in which only the bridging portion 43a exists.
The extending plate portion 43b serves as a reinforcing material for the bridging portion 43a.
The base piece portion 43 of the stopper member 40 can adopt a configuration in which only the bridging portion 43a exists without the extension plate portion 43b, or a configuration in which only the extension plate portion 43b exists without the bridging portion 43a. be.

As shown in FIGS. 5 and 8, the stopper member 40 is arranged in the stopper arrangement area 11 by mounting the interposition piece 41 on the arrangement area extension part 22a of the pouring cylinder part 22. The extension plate portion 43b of the base piece portion 43 of the handle piece 42 is placed on the stopper projection of the base end portion of the sleeve main body 31 of the outer sleeve 30 so that the extension plate portion 43b is located on the distal end side in the axial direction of the spout from the bridging portion 43a. It is attached to the dispensing spout 10 in alignment with the blank area 36 .

The interposed piece 41 arranged in the stopper arrangement region 11 regulates the movement of the outer sleeve 30 arranged at the fitting position with respect to the spout body 20 to the base end side of the spout tube portion 22 so that the outer sleeve 30 is This effectively contributes to stably maintaining the state of being arranged at the fitting position with respect to the spout body 20 .
The pouring spout 10 itself and the pouring spout-equipped container 10B (such as a refillable container) having the pouring spout 10 are configured such that the stopper member 40 is attached to the arrangement area extending portion 22a of the pouring cylinder portion 22 to form a stopper. The pouring spout with a stopper member arranged in the arrangement area 11 can be supplied to the market in an assembled state without an overcap.

1 and 2 of the spout body 20, the front end surface of the spout main body 20 opposite to the channel partition wall 23 is entirely perpendicular to the axial direction of the spout tube portion 22. It is assumed to be a flat surface. The tip end face which is entirely flat and perpendicular to the axial direction of the pouring cylinder 22 can prevent the inconvenience of dirt being accumulated in the concave portion when the concave portion is present.

The tip surface of the sealing fitting portion 24 of the spout body 20 engages the locking projection 24b on the side surface of the sealing fitting portion 24 into the locking recess 34a on the inner peripheral surface of the fitting receiving portion 34 inside the tip of the outer sleeve 30. When the sealing fitting portion 24 is fitted inside the fitting receiving portion 34 , it becomes flush with the front end surface of the outer sleeve 30 including the fitting receiving portion 34 , and the gap between the front end surface of the outer sleeve 30 There are no crevices for dust to accumulate.

As shown in FIGS. 5 and 8, when the interposition piece 41 of the stopper member 40 is attached to the arrangement area extension portion 22a of the pouring tube portion 22 and arranged in the stopper arrangement area 11, the handle piece of the stopper member 40 42 is arranged in a state of projecting from the interposed piece 41 to the side of the stopper arrangement region 11 (the side opposite to the pouring tube portion 22).

A handle piece 42 of the stopper member 40 is formed in a size that can be gripped by the user's fingers.
The interposition piece 41 attached to the arrangement area extension part 22a of the pouring cylinder part 22 and arranged in the stopper arrangement area 11 is, for example, a user who uses the refill container 110, who pushes the handle piece 42 of the stopper member 40 with fingers. By gripping and applying a pulling force in a direction perpendicular to the axis of the pouring cylinder 22, the work of pulling it out from the stopper arrangement region 11 can be easily performed.

Regarding the pouring spout 10, the state in which the outer sleeve 30 is arranged at the fitting position with respect to the spout main body 20 and the interposed piece 41 of the stopper member 40 is arranged in the stopper arrangement region 11 is hereinafter referred to as the state with the stopper member. , also say.
With the pouring spout 10 attached to the stopper member, the outer sleeve 30 can be slid to the base end side with respect to the spout body 20 by removing the stopper member 40 .

As shown in FIGS. 1 to 4, the refillable container 110 has the pouring spout 10 with the stopper member 40 removed (separated) from the cylindrical neck portion 121 of the packaging container 120 (hereinafter referred to as the packaging container opening). (also referred to as a neck portion) to fill the packaging container 120 with contents.
1 to 4, the upper side is the upper side and the lower side is the lower side.

As shown in FIG. 1, in the filling operation of filling the contents from the refillable container 110 into the packaging container 120, the packaging container 120 is placed in an upward position, and the pouring spout 10 of the refillable container 110 is placed on the upper side of the packaging container neck portion 121. , and the stopper projection 32 of the outer sleeve 30 is brought into contact with the tip of the neck portion 121 of the packaging container.
In the refilling container 110, the tip of the pouring spout 10 is the lower end, and the container part 111 is positioned above the pouring spout 10, and the pouring spout 10 is inserted into the neck part 121 of the packaging container.

Specifically, the insertion of the pouring spout 10 into the mouth and neck portion 121 of the packaging container is performed by into the neck portion 121 of the packaging container.
The pouring spout 10, in a state in which the outer sleeve 30 is arranged at the fitting position with respect to the spout body 20, is configured such that the outer sleeve main tubular portion 33 and the pouring protrusion 26 inside thereof form the packaging container from the tip side thereof. Insertion into the neck portion 121 is started.

The pouring spout 10 is inserted into the packaging container neck portion 121 by the user or the like of the refill container 111 pressing the container portion 111 of the refill container 111 toward the packaging container neck portion 121 with fingers. conduct).

As shown in FIG. 1, the insertion of the outer sleeve main cylindrical portion 33 into the packaging container 120 from the packaging container neck portion 121 is continued until the stopper protrusions 32 on both left and right sides come into contact with the tip of the packaging container neck portion 121. be done. The stopper projections 32 on the left and right sides of the outer sleeve 30 abut against the tip of the packaging container neck portion 121 to restrict further insertion of the sleeve main body 31 into the packaging container 120, thereby preventing the sleeve body 31 from being inserted into the packaging container neck portion 121. complete.

The stopper protrusion 32 of the outer sleeve 30 restricts displacement of the sleeve body 31 in the insertion direction with respect to the neck portion 121 by contacting the tip of the neck portion 121 into which the main cylindrical portion 33 of the sleeve body 31 is inserted.
When the stopper protrusion 32 of the outer sleeve 30 abuts against the tip of the packaging container neck portion 121, the main cylindrical portion 33 of the sleeve main body 31 of the outer sleeve 30 (hereinafter also referred to as the outer sleeve main body) is wholly attached to the packaging container. Housed within 120 .

The position of the outer sleeve 30 with respect to the packaging container 120 when the left and right stopper protrusions 32 are in contact with the tip of the packaging container neck portion 121 is hereinafter also referred to as the insertion limit position.
In order to pour the contents of the refill container 110 from the pouring spout 10 into the packaging container 120, even after the outer sleeve 30 reaches the insertion limit position with respect to the packaging container 120, pouring spout 10 into the neck portion 121 is continued. Continue the insert operation. Then, as shown in FIGS. 3 and 4, the spout body 20 is relatively moved toward the distal end of the outer sleeve 30 at the insertion limit position to open the spout 25b of the content passage 25 (see FIG. 3).

The spout 25b of the content channel 25 moves the sealing fitting portion 24 of the spout body 20 from the inside of the fitting receiving portion 34 at the tip of the outer sleeve 30 by moving the spout body 20 relative to the outer sleeve 30 toward the distal end side. It is opened by extracting the outer sleeve 30 to the tip side.
When the outlet 25b of the contents channel 25 of the spout 10 for pouring is opened, the contents in the refill container 110 flow into the packaging container 120 through the contents channel 25 of the spout 10 for filling. be started.

The operation of inserting the pouring spout 10 into the neck portion 121 can be continued until the sleeve receiving portion 21c of the mounting portion 21 of the spout body 20 abuts the proximal end of the outer sleeve 30. As shown in FIG.
When the sleeve receiving portion 21c of the mounting portion 21 of the spout body 20 is brought into contact with the proximal end of the outer sleeve 30, the opening amount of the spout 25b of the content flow path 25 is maximized.

The position of the spout body 20 with respect to the outer sleeve 30 when the sleeve receiving portion 21c of the mounting portion 21 is in contact with the proximal end of the outer sleeve 30 is hereinafter also referred to as the push-in limit position. The spout body 20 can insert the pouring protrusion 26 into the sleeve body 31 of the outer sleeve 30 to the pushing limit position with respect to the outer sleeve 30 at the fitting position.

The content in the refillable container 110 flows into the packaging container 120 through one or more of the plurality of divided channels 25c (see FIGS. 1, 3, 5, etc.) of the content channel 25 of the pouring spout 10, and is filled. be done.

As shown in FIGS. 1 to 4 and 6, liquid stop ribs 28 extending along the entire circumference of the spout body 20 are provided at a plurality of locations in the axial direction of the side surface of the spout tube portion 22 of the spout body 20. there is
The spout tube portion 22 includes a liquid stopping rib 28 .

As shown in FIGS. 1 to 4, the inner peripheral surface of the sleeve body 31 of the outer sleeve 30 (also referred to as the outer sleeve body in this specification), that is, the inner periphery of the through hole (sleeve through hole) inside the outer sleeve 30 The surface is in contact with the liquid stopper rib 28 . The liquid stop rib 28 reduces the contact area between the outer sleeve 30 and the pouring tube portion 22 to reduce the sliding resistance of the outer sleeve 30 to the pouring tube portion 22 , and also reduces the contact area between the outer sleeve 30 and the pouring tube portion 22 . serves to prevent the passage of contents between

Various inner diameters of the neck portion 121 of the packaging container 120 exist.
The packaging container 120 for filling the content from the refill container 110 has an inner diameter of the outer sleeve main body of the spout 10 so that the inner diameter of the outer sleeve 30 of the spout 10 can be inserted into the neck portion 121 of the spout 10. 31 should be larger than the outer diameter.
In addition, the inner diameter of the neck portion 121 of the packaging container 120 to be filled with the content from the refill container 110 is smaller than the sum of the lateral extension dimension of the stopper protrusion 32 of the outer sleeve 30 and the outer diameter of the outer sleeve main body 31. There is a need.

In addition, the container to be filled has a gap between the outer sleeve main body 31 inserted into the mouth-and-neck portion 121 and the inner peripheral surface of the mouth-and-neck portion 121. The one that can secure a gap for air exhaust (ventilation path 12 in FIGS. 1 to 4) is adopted.

1, 3, 6, etc., of the stopper projection 32 of the outer sleeve 30, specifically, the extension dimension of the outer sleeve 30 between the tip of the stopper projection 32 and the axis of the sleeve main body 31. 30 refers to the dimension obtained by subtracting the curvature radius dimension of the side surface of the sleeve body 31 from the separation distance in the left-right direction.

The extension dimensions in the left-right direction of the stopper protrusions 32 on the left and right sides of the outer sleeve 30 shown in FIG. 6 and the like are the same. The inner diameter of the neck portion 121 of the packaging container 120 to be filled with the content from the refill container 110 provided with the pouring spout 10 including the outer sleeve 30 is the lateral extension of the stopper protrusion 32 on one side of the outer sleeve 30 . It must be smaller than the sum of the actual size and the outer diameter of the sleeve body 31 .

When the left and right stopper projections 32 of the outer sleeve 30 have the same left-right extension dimension, the inner diameter of the mouth and neck portion 121 of the packaging container 120 is equal to the left-right extension dimension of one of the stopper projections 32 of the outer sleeve 30 . If it is smaller than the sum of the outer diameter of the sleeve main body 31 and the sleeve main body 31 inserted into the container neck portion 121, the stopper projections 32 on both the left and right sides of the outer sleeve 30 can be reliably brought into contact with the tip of the container neck portion 121. can. As a result, it is possible to reliably prevent the stopper protrusion 32 from falling into the container neck portion 121 .

When the stopper projections 32 on the left and right sides of the outer sleeve 30 have different lateral extension dimensions, the inner diameter of the mouth and neck portion 121 of the packaging container 120 is larger than the sum of the shorter extension dimension and the outer diameter of the outer sleeve main body 31 . should be small.

That is, the pouring spout 10 is defined by the sum of the lateral extension dimension of one stopper protrusion 32 of the outer sleeve 30 and the outer diameter of the outer sleeve main body 31, and the lateral extension of the other stopper protrusion 32. The sum of the dimensions and the outer diameter of the outer sleeve main body 31 must be larger than the inner diameter of the packaging container neck portion 121 .

The pouring spout 10 is defined by the sum of the lateral extension dimension of one stopper protrusion 32 of the outer sleeve 30 and the outer diameter of the outer sleeve main body 31, and the lateral extension dimension of the other stopper protrusion 32. The total outer diameter of the outer sleeve body 31 is larger than the inner diameter of the neck portion 121 of the packaging container. Positioning in the insertion direction with respect to the opening and neck portion 121 of the packaging container can be easily achieved simply by abutting it.

The sum of the horizontal extension dimension of each stopper protrusion 32 and the outer diameter of the outer sleeve body 31 is preferably 1 mm or more, more preferably 2 mm or more, larger than the inner diameter of the packaging container neck portion 121 .

As shown in FIGS. 1 to 4, the air passage 12 is a gap secured between the outer sleeve body 31 of the pouring spout 10 inserted into the neck portion 121 of the packaging container 120 and the inner peripheral surface of the neck portion 121. The tip end of the mouth and neck portion 121 is hereinafter also referred to as an upper opening.
A portion of the upper opening of the air passage 12 is covered with the stopper protrusion 32 of the outer sleeve 30 that abuts on the tip of the neck portion 121 .

However, the upper opening of the air passage 12 is kept open except for the portion covered by the stopper projection 32 of the outer sleeve 30 which is in contact with the tip of the mouth and neck portion 121 .
As shown in FIG. 7 and the like, the longitudinal dimension (width dimension) of the stopper projections 32 on the left and right sides of the outer sleeve 30 is slightly smaller than the outer diameter of the outer sleeve main body 31 .
Further, as shown in FIGS. 6 and 7, the stopper protrusions 32 on both the left and right sides of the outer sleeve 30 are located within the projected range of the base end of the outer sleeve main body 31 in the left-right direction.

For this reason, for example, as shown in FIGS. 1 to 4, when the outer sleeve main body 31 is inserted into the neck portion 121 of the packaging container at a position spaced apart from the entire inner peripheral surface thereof, as shown in FIG. The upper openings of the passages 12 are opened on both sides in the front-rear direction of the upper end of the outer sleeve body 31 and the stopper projections 32 on both left and right sides.

Since the outer diameter of the base end portion of the outer sleeve body 31 is smaller than the inner diameter of the packaging container neck portion 121, for example, a part of the outer peripheral surface of the base end portion of the outer sleeve body 31 is on the inner peripheral surface of the packaging container neck portion 121. Even if they come into contact with each other, the opening of the upper opening of the air passage 12 can be reliably secured.
The ventilation path 12 can reliably secure the opening of the upper opening on both sides or one side of the upper end of the outer sleeve body 31 and the stopper protrusion 32 in the front-rear direction.

As shown in FIGS. 2 and 4, as the filling of the container body 124 of the packaging container 120 from the refillable container 110 progresses, the air in the container body 124 is forced out of the container body 124 accordingly. The air G pushed out from the container main body 124 passes through the air passage 12 in the container neck portion 121 and is discharged out of the packaging container 120 from the upper opening portion of the air passage 12 .

When the outer sleeve 30 is inserted into the packaging container 120 from the mouth and neck portion 121 and arranged at the insertion limit position, the opening of the upper opening of the air passage 12 can be reliably secured, so that the packaging container 120 can be removed from the refill container 110. The air G pushed out from the container body 124 as the contents are filled into the container body 124 can be smoothly discharged to the outside of the packaging container 120 .
As a result, filling of the contents from the refillable container 110 into the container body 124 of the packaging container 120 can proceed smoothly.

The ventilation path 12 is arranged in the cross-sectional direction (the cross-sectional direction perpendicular to the axis of the neck portion 121; hereinafter the same) of the sleeve body 31 of the outer sleeve 30 arranged at the insertion limit position with respect to the packaging container 120 with respect to the neck portion 121 of the packaging container. The opening portion of the upper opening can be reliably secured regardless of the
The pouring spout 10 can secure a degree of freedom in the arrangement position in the cross-sectional direction with respect to the packaging container neck portion 121 of the outer sleeve body 31 .

The shape of the air passage 12 in the cross-sectional direction of the packaging container neck portion 121 varies depending on the arrangement position of the outer sleeve body 31 with respect to the packaging container neck portion 121 in the cross-sectional direction.
For example, when the distance between the sleeve main body 31 of the outer sleeve 30 arranged at the insertion limit position with respect to the packaging container 120 and the packaging container neck portion 121 is small, the air passage 12 is formed at the upper end of the outer sleeve main body 31 and In some cases, the extending direction of the stopper protrusion 32 along the left-right direction is elongated several times as long as the direction corresponding to the front-rear direction of the outer sleeve 30 .

A plurality of vent holes are formed at intervals in the circumferential direction in the connecting portion of the movable member of the pouring spout of Patent Document 1. FIGS. 4(a) and 4(b) of Patent Document 1 show a structure in which vent holes are formed at eight evenly spaced locations in the circumferential direction of a ring plate-shaped connecting portion.
Further, referring to FIGS. 4(a) to 4(c) of Patent Document 1, the ventilation hole is formed in a region between the inner peripheral end and the outer peripheral end of the connecting portion.
In the pouring spout of Patent Document 1, the cross-sectional size of the pouring tube and the content flow path inside the pouring tube is reduced by the amount of securing the connection part in which the ventilation hole is formed on the entire periphery of the pouring outlet closing part of the movable member. must be reduced. For this reason, the pouring spout of Patent Document 1 is disadvantageous in terms of shortening the time required for refilling the contents from the refillable container to the refillable container.

On the other hand, the pouring spout 10 of the present embodiment includes the upper end of the outer sleeve main body 31 and the surface of the stopper projection 32 on one or both sides in the front-rear direction and the inner peripheral surface of the mouth and neck portion 121 of the packaging container (specifically, the packaging). The opening of the upper opening of the air passage 12 can be secured by the gap between the inner peripheral surface of the container neck portion 121 and the tip end of the packaging container neck portion 121 . The outer sleeve 30 of this pouring spout 10 does not have a portion corresponding to the positioning engagement portion of the movable member of the pouring spout of Patent Document 1. No configuration required. A portion of the side surface of the outer sleeve body 31 inserted into the neck portion 121 of the packaging container can be brought into contact with the inner peripheral surface of the neck portion 121 of the packaging container.

The outer sleeve main body 31 of the pouring spout 10 of the present embodiment has an outer diameter smaller than the inner diameter of the packaging container neck portion 121, and has an air passage 12 and an air passage between it and the inner peripheral surface of the packaging container neck portion 121. Any material that can secure the opening of the upper opening of 12 may be used. For this reason, the outer sleeve body 31 of the spout 10 for pouring can more easily bring the outer diameter closer to the inner diameter of the neck portion 121 of the packaging container than the outlet closing portion of the movable member of the spout for pouring of Patent Document 1. is.

As a result, the pouring spout 10 can increase the inner diameter of the outer sleeve main body 31 and the diameter of the pouring tube portion 22 of the spout body 20, and the content flow path inside the pouring tube portion 22 can be increased. 25 can ensure a large flow passage cross-sectional area.
The pouring spout 10 can secure a large flow channel cross-sectional area of the content flow channel 25 inside the pouring cylinder part 22, and thus, compared to the pouring spout of Patent Document 1, refilling from the refilling container to the filling target container is possible. It is possible to shorten the time required for filling the contents in the container.

Since air is a fluid with significantly higher fluidity than contents such as liquids and powders, the area of the opening of the upper opening of the air passage 12 (opening area) is the same as that of the pouring spout. It is sufficient that the flow channel cross-sectional area is much smaller than the flow channel cross-sectional area of the content flow channel 25 inside the pouring tube portion 22 of 10 .
However, in terms of realizing smooth exhaust of the air G in the container body 124 to the outside of the packaging container 120 through the ventilation path 12, the outer diameter of the outer sleeve body 31 is set to the opening and neck portion of the packaging container over the entire length of the outer sleeve body 31. It is preferably smaller than the inner diameter of 121 by 0.5 mm or more, more preferably by 1 mm or more.

The outer sleeve body 31 of the pouring spout 10 of the refillable container 110 shown in FIGS. 121 is adopted. Therefore, when the stopper protrusion 32 of the outer sleeve 30 abuts against the tip of the packaging container neck portion 121 , the outer sleeve main cylinder portion 33 penetrates the inside of the packaging container neck portion 121 to reach the container body of the packaging container 120 . 124 is reached and inserted.
When the stopper projection 32 of the outer sleeve 30 abuts against the tip of the packaging container neck portion 121, the pouring projection 26 of the spout body 20 also reaches the inside of the container body 124 and is inserted.

As shown in FIGS. 1 to 4, the tip of the outer sleeve main cylindrical portion 33 of the pouring spout 10 inserted into the packaging container 120 from the tip of the neck portion 121 at the upper end of the spout is at the insertion limit position of the outer sleeve 30 with respect to the packaging container 120. is arranged below the neck portion 121 of the packaging container when it reaches the .
As shown in FIGS. 3 and 4, the spout 25b of the content flow path 25 of the spout 10 is opened below the neck portion 121 of the packaging container 120 facing upward.

As shown in FIGS. 3 and 4, the opening portion (open portion) of the spout 25b of the pouring spout 10 is positioned below the neck portion 121 of the packaging container 120 that faces upward. With this configuration, the contents discharged from the outlet 25b do not interfere with the inflow of the air G pushed out from the container body 124 of the packaging container 120 as the contents are filled into the air passage 12. As a result, the flow of air from the container body 124 of the packaging container 120 to the air passage 12, and the pouring and filling of the contents from the spout 25b of the pouring spout 10 into the container body 124 of the packaging container 120 are smooth and short. Contribute effectively to what you do in your time.

FIG. 10 shows the pouring spout 10 using the outer sleeve 30 in which the axial dimension of the outer sleeve main cylindrical portion 33 is shorter than the axial dimension of the mouth and neck portion 121 of the packaging container, with the spout 25b opened. In FIG. 10, the pouring projection 26 of the spout body 20 protrudes downward from the tip of the outer sleeve main cylindrical portion 33 . Part of the opening of the spout 25b is located inside the neck portion 121 of the packaging container, and the rest is located below the neck portion 121 of the packaging container.

However, as shown in FIG. 10, the axial dimension of the outer sleeve main tubular portion 33 is the virtual conical surface 30S ( ) are positioned apart from the neck portion 121 of the packaging container 120 .
The virtual conical surface 30S in FIG. 10 has the axis of the outer sleeve 30 (specifically, the axis of the inner region of the outer sleeve body 31; hereinafter the same) as the rotation axis, and rotates from the vertex located in the inner region of the outer sleeve body 31 to the outer sleeve. It extends toward the distal end of the main body 31 while ensuring an apical angle θ of 90 degrees and passes through the inner periphery of the distal end of the outer sleeve 30 (in FIG. 10, the inner periphery of the fitting receiving portion 34 on the distal end side of the outer sleeve 30). be.

As shown in FIG. 10, as a result of diligent studies by the present inventors, the pouring spout 10 has a virtual conical surface 30S set on the outer sleeve 30 when the outer sleeve 30 is placed at the insertion limit position with respect to the packaging container 120. is positioned away from the neck portion 121 of the packaging container 120 can be preferably adopted.

The contents discharged from the spout 25b of the spout body 20 descend inside the packaging container 120 facing upward.
As shown in FIG. 10, if the imaginary conical surface 30S of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 facing upward is located away from the neck portion 121 of the packaging container 120, the liquid is discharged from the spout 25b. Most of the contained contents descend inside the virtual conical surface 30S. The contents discharged from the spout 25b hardly come into contact with the inner peripheral surface of the neck portion 121 of the packaging container.

As a result, it is avoided that the contents discharged from the spout 25b block the whole or almost all of the opening of the mouth and neck part 121 of the air passage 12 on the base end side (hereinafter also referred to as the base end opening). It is possible to realize smooth inflow of the air G pushed out from the container body 124 of the packaging container 120 as the content is filled into the ventilation path 12 . Therefore, it is possible to prevent the contents discharged from the outlet 25b from being hindered by the air G that is about to flow into the air passage 12 from the container body 124 of the packaging container 120, and the contents discharged from the outlet 25b can be prevented from flowing down. It is possible to reliably realize the smooth flow down of the material to the container main body 124 .

There are various axial dimensions of the neck portion 121 of the packaging container 120 .
The position of the virtual conical surface 30S of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 in the axial direction of the packaging container neck portion 121 is determined by the axial dimension of the outer sleeve main cylindrical portion 33 .
As shown in FIG. 10 , the pouring spout 10 of the refillable container 110 is arranged in the outer sleeve main cylindrical portion 33 in view of the axial dimension of the neck portion 121 of one or a plurality of packaging containers 120 preset as filling target containers. is a size that allows the imaginary conical surface 30S of the outer sleeve 30 at the insertion limit position with respect to each packaging container 120, which is the container to be filled, to be positioned away from the neck portion 121 of the packaging container. adopt.

With this configuration, as shown in FIG. 10, the axial dimension of the outer sleeve main cylindrical portion 33 is made shorter than the axial dimension of the packaging container neck portion 121, and at least one of the pouring spouts 25b of the pouring spout 10 is fitted. It is also possible to position the portion above the proximal end of the neck portion 121 of the packaging container 120 facing upward.

When the outer sleeve 30 is placed at the insertion limit position with respect to the packaging container 120, the pouring spout 10 has a virtual conical surface 30S formed by changing the vertical angle θ of the virtual conical surface 30S in FIG. 10 to 120 degrees. It is more preferred that the configuration be located at a distance from 121 .
If the imaginary conical surface 30S having the apex angle θ of 120 degrees is positioned away from the neck portion 121 of the packaging container when the outer sleeve 30 is placed at the insertion limit position with respect to the packaging container 120, the apex angle θ is 90 degrees. Compared to the configuration in which the virtual conical surface 30S of degrees is located at a distance from the neck portion 121 of the packaging container, the contents discharged from the spout 25b are pushed out from the container main body 124 of the packaging container 120 as the contents are filled. Influencing the inflow of the air G into the ventilation path 12 can be avoided more reliably. As a result, smooth progress of filling the container body 124 with the contents from the spout 25b and exhausting the air G in the container body 124 to the outside of the packaging container 120 through the ventilation path 12 can be realized more reliably.

The pouring spout 10 of the refill container 110 can be inserted into and removed from the packaging container neck portion 121 .
When the contents inside the refilling container 110 are exhausted by pouring out the contents into the packaging container 120, the packaging container 120 can be removed by simply pulling the spout 10 out of the packaging container 120 by pulling it upward from the packaging container 120 facing upward. can be easily removed from

As shown in FIGS. 1 and 2, the refill container 110 in which the pouring port 25b is opened by projecting the pouring protrusion 26 from the outer sleeve main cylindrical portion 33 toward the distal end side of the outer sleeve 30 is a sleeve. By pulling it back to a position where it abuts against the receiving portion 21c, the sealing fitting portion 24 at the tip of the spout body 20 can be fitted to the tip of the outer sleeve main cylinder portion 33 to close the spout 25b of the content flow path 25. .
As a result, the refill container 110 can be stored in a state in which the contents are prevented from leaking out from the outlet 25b of the contents channel 25 even when contents such as residual liquid are present inside.

(Modified example of outer sleeve)
Figures 11-14 show modified outer sleeves 30A, 30B, 30C and 30D.
Outer sleeves 30A, 30B, 30C, and 30D shown in FIGS. 11 to 14 are obtained by changing the shape of the stopper protrusions 32 on both left and right sides of the outer sleeve 30 illustrated in FIG. 7 and the like. The structures of the outer sleeves 30A, 30B, 30C, and 30D shown in FIGS. 11 to 14 are the same as the outer sleeve 30 illustrated in FIG. On both front and rear sides of the base end of the outer sleeve body 31 of each of the outer sleeves 30A, 30B, 30C, and 30D, stopper protrusion-free regions 36 positioned between the left and right stopper protrusions 32 are secured.

The stopper protrusion 32 of the outer sleeve 30A (first modified example) shown in FIG. 11 is formed in a tapered shape in which the dimension in the front-rear direction decreases as the distance from the proximal end of the outer sleeve main body 31 toward one side in the left-right direction increases. there is The stopper projection 32 shown in FIG. 11 has an imaginary straight line (hereinafter referred to as a straight line) extending in the left-right direction from the axis of the outer sleeve main body 31 as the front and rear side end surfaces 32b of the stopper protrusion 32 move away from the base end of the outer sleeve main body 31 in the left-right direction. It is formed in a tapered shape approaching the center line in the left-right direction.

Compared to the outer sleeve 30 illustrated in FIG. 7 and the like, the outer sleeve 30A can secure a larger opening area of the upper opening of the air passage 12 between the inner peripheral surface of the mouth and neck portion 121 of the packaging container.
The topper projection-free region 36 of the outer sleeve 30A is a part of the side surface of the base end of the outer sleeve main body 31 secured on both front and rear sides of the base end of the outer sleeve main body 31. It has a curved surface extending in the circumferential direction.

The stopper projection 32 of the outer sleeve 30B (second modification) shown in FIG. 12 is formed in a tapered (fan-shaped) shape in which the dimension in the front-rear direction increases as the distance from the proximal end of the outer sleeve main body 31 toward one side in the left-right direction increases. ing. The stopper protrusion 32 shown in FIG. 12 is formed in a tapered shape such that the front and rear side end faces 32b are spaced apart from the lateral center line of the outer sleeve 30 as it is spaced from the base end of the outer sleeve main body 31 to one side in the lateral direction. there is

The stopper protrusion 32 of the outer sleeve 30C (third modified example) shown in FIG. It has a main piece portion 32d that secures the directional dimension and extends in the opposite direction to the base end portion of the outer sleeve main body 31 .
The base piece portion 32c extends to one side in the left-right direction from the base end portion of the outer sleeve main body 31, forming side end faces extending in the left-right direction on both sides in the front-rear direction.
The main piece portion 32d has a dimension in the front-rear direction that is larger than the clearance between the front and rear side end surfaces of the base piece portion 32c. The main piece portion 32d is formed in a plate-like shape extending in the left-right direction while securing portions that protrude from the tip of the base piece portion 32c to both sides in the front-rear direction. Side end surfaces extending in the left-right direction are formed on both sides in the front-rear direction of the main piece portion 32d.

The outer sleeves 30B and 30C shown in FIGS. 12 and 13 can ensure a larger contact portion with the tip of the packaging container neck portion 121 than the outer sleeve 30 illustrated in FIG. 7 and the like.
Therefore, when the outer sleeves 30B and 30C shown in FIGS. 12 and 13 are placed at the insertion limit position with respect to the packaging container 120, the axis of the outer sleeve main body 31 can stably ensure the direction parallel to the axis of the neck portion 121 of the packaging container. .

The region 36 without stopper protrusions of the outer sleeve is not limited to a linear shape, and may be, for example, a curved surface that is a part of the circumferential direction of the side surface of the proximal end of the cylindrical sleeve main body 31 .
The stopper protrusion-free region 36 may be a flat surface that is flush with a pair of front and rear side end surfaces of the base end portions of the stopper protrusions 32 on the left and right sides on the base end side of the sleeve body 31 .
Further, the stopper protrusion-free region 36 may be a recessed inner surface recessed inward from the base end portion of the sleeve main body 31 from a pair of front and rear side end surfaces of the base end portions of the left and right stopper protrusions 32 .

Regarding the outer sleeve, the proximal end portion composed of the sleeve main body 31 proximal end portion and the left and right stopper protrusions 32 is also referred to as the sleeve proximal end portion hereinafter.
7 and FIGS. 11 to 13, the lateral dimension of the base end of the outer sleeve is the longitudinal dimension of the position passing through the axis of the proximal end of the sleeve main body 31 at the proximal end of the sleeve (hereinafter referred to as the width of the central portion). dimension, also called). 7 and FIGS. 11 to 13, the regions 36 without stopper protrusions on both front and rear sides of the outer sleeve are located on both front and rear sides of the axis of the proximal end of the sleeve main body 31. As shown in FIG. 7 and 11 to 13, the center width dimension of the proximal end of the outer sleeve is the distance between the outer surfaces of the areas 36 without stopper protrusions on both front and rear sides of the proximal end of the sleeve body 31. As shown in FIG.

7, 11 to 13, the sleeve base ends of the outer sleeves 30, 30A, 30B, and 30C have stopper projection-free regions 36 on both sides of the base end of the sleeve main body 31 in the front-rear direction.
However, as shown in FIG. 14, for example, the outer sleeve may also adopt a configuration that does not have the region 36 without stopper protrusions.

An outer sleeve 30D (fourth modified example) shown in FIG. It has left and right stopper projections 32 which are continuous with each other on both front and rear sides of the base end portion 31 .
The outer sleeve 30D shown in FIG. 14 has a plate-like stopper projecting plate portion 32A in which the left and right stopper projecting portions 32 are continuous with each other. The outer sleeve 30D has a stopper projection plate portion 32A in which the stopper projections 32 on both left and right sides are continuous with each other, and does not have a region 36 without stopper projections.
The outer sleeve 30D shown in FIG. 14 has a sleeve base end portion composed of a sleeve main body 31 base end portion and a stopper projecting plate portion 32A.

The stopper projecting plate portion 32A has a structure in which the tapered stopper projecting portions 32 are connected to each other as illustrated in FIG. A configuration in which the tapered (fan-shaped) stopper protrusions 32 having an increased dimension in the front-rear direction are connected to each other may also be employed.
The stopper projecting plate portion 32A has various shapes of stopper projecting portions 32 that are continuous with each other, such as a configuration in which stopper projecting portions 32 having a base piece portion 32c and a main piece portion 32d are connected to each other, as illustrated in FIG. configuration can be adopted.

The sleeve proximal end of the outer sleeve adopts a structure having a region 36 without a stopper projection or a structure having a stopper projecting plate portion 32A.
The longitudinal dimension of the outer sleeve at the position passing through the axis of the proximal end of the sleeve main body 31 at the proximal end of the outer sleeve is the same as the container to be filled in both the configuration having the stopper projecting portion-free region 36 and the configuration having the stopper projecting plate portion 32A. 0.5 mm or more smaller than the inner diameters of the neck portions 121 of all the packaging containers 120 set as . More preferably, the width of the central portion of the proximal end portion of the sleeve of the outer sleeve is 1 mm or more smaller than the inner diameters of the neck portions 121 of all the packaging containers 120 set as the containers to be filled.

At the base end portion of the sleeve body 31 having stopper projection-free regions 36 on both front and rear sides, the stopper projection-free regions 36 are located on both front and rear direction sides perpendicular to the left-right direction through the axis of the sleeve main body 31 base end portion. The width of the central portion of the sleeve base end portion having stopper protrusion-free regions 36 on both front and rear sides, which is a portion of the cylindrical side surface of the sleeve body 31 base end portion, is the same as the outer diameter of the sleeve body 31 . However, the stopper projection-free region 36 may be the inner surface of a recess recessed from the cylindrical side surface of the cylindrical sleeve main body 31 base end portion. For this reason, the width of the central portion of the sleeve base end of the outer sleeve having stopper protrusion-free regions 36 on both front and rear sides of the base end of the sleeve body 31 is the same as the outer diameter of the outer sleeve body 31 or equal to the outer diameter of the outer sleeve body 31 Slightly smaller than outer diameter.
The outer diameter of the outer sleeve main body 31 of the outer sleeve having the stopper projecting plate portion 32A is smaller than the width dimension of the central portion of the base end portion of the sleeve.

The lateral dimension of the sleeve proximal end of the outer sleeve having the stopper projecting plate portion 32A is ensured to be larger than the width dimension of the central portion of the sleeve proximal end. In the outer sleeve having the stopper projecting plate portion 32A, the left and right stopper projecting portions 32 of the stopper projecting plate portion 32A are brought into contact with the packaging container neck portion 121, thereby positioning the outer sleeve main tubular portion 33 in the insertion direction with respect to the packaging container 120. , and securing of the opening portion of the upper opening of the air passage 12 can be easily realized, and the contents can be smoothly filled into the packaging container.

(Modified example of spout body)
15 and 16 show a modified spout body 50. FIG.
15 to 19, components of the spout body 50 that are the same as those of the spout body 20 shown in FIGS. 5, 6, etc. are denoted by common reference numerals, and description thereof will be omitted or simplified.

As shown in FIGS. 15, 16 and 19, the spout body 50 is attached to the tip of the spout body 20 shown in FIGS. A pair of tip side walls 51 extending over the tip portion and a channel partition wall 52 extending between the pair of tip portion side walls 51 are formed. The spout body 50 has a spouting projection 53 including the spouting tube portion 22 , a tip side wall 51 , a flow path partition wall 52 and a sealing fitting portion 24 .

The spout body 50 is an integrally molded product made of resin.
The spout body 20 shown in FIGS. 5, 6, etc. has a channel partition wall 23 extending over the entire length of the content channel 25 from the proximal end of the mounting portion 21 to the sealing fitting portion 24 .
On the other hand, the channel partition wall 52 of the spout body 50 of the modified example shown in FIGS.
The spout body 50 of the modified example shown in FIGS. 15 to 19 exists only at the tip of the pouring protrusion 53 instead of the channel partition wall 23 of the spout body 20 shown in FIGS. A channel partition wall 52 is employed.

Note that the spout body 50 extends over the entire length of the content flow path 25 from the base end of the mounting portion 21 to the sealing fitting portion 24 instead of the flow path partition wall 52 that exists only at the tip of the projection 53 for pouring. It is also possible to employ a configuration including a flow channel partition wall.

As shown in FIGS. 16 to 19, the channel partition wall 52 is formed in a plate shape (flat plate shape) extending along a virtual plane extending parallel to the axis of the spout tube portion 22 of the spout body 50. ing.
The channel partition wall 52 has a protruding tip portion 52a that extends from the pouring cylinder portion 22 toward the tip side thereof. The tip of the projecting tip portion 52 a of the flow path partition wall 52 is formed integrally with the sealing fitting portion 24 . The channel partition wall 52 divides the tip of the content channel 25 located at the tip of the extraction protrusion 53 into two divided channels 25e.

A cross section of the flow channel partition wall 52 perpendicular to the axis of the pouring tube portion 22 is elongated with the direction perpendicular to the thickness direction of the flow channel partition wall 52 as the longitudinal direction. Regarding the channel partition wall 52, the longitudinal direction of the cross section perpendicular to the axis of the pouring tube portion 22 (horizontal direction in FIG. 15) is hereinafter also referred to as the width direction.

A pair of tip side walls 51 of the spout body 50 are formed integrally with the pouring tube portion 22 on the inner peripheral side of the tip end portion of the pouring tube portion 22 and extend from the pouring tube portion 22 to the tip side thereof. .
The pair of tip side walls 51 are located on both sides of the channel partition wall 52 in the width direction.
The direction of the tip side wall 51 that coincides with the thickness direction of the channel partition wall 52 is hereinafter also referred to as the width direction. Both ends of the channel partition wall 52 in the width direction are formed integrally with the central portion in the width direction of the tip side wall 51 over the entire length in the extending direction along the axis of the extraction tube portion 22 . Each tip side wall 51 is formed so as to protrude on both sides in the thickness direction with respect to the channel partition wall 52 .

The ends of the portions of the pair of tip end side walls 51 and the channel partition wall 52 that extend from the pouring tube portion 22 to the tip side thereof are integrally formed with the sealing fitting portion 24 .
The channel partition wall 52 functions as a support piece that supports the sealing fitting portion 24 with respect to the pouring tube portion 22 .
In addition, in the spout body 50 , the pair of tip side walls 51 also function as support pieces that support the sealing fitting portion 24 with respect to the pouring cylinder portion 22 .

17 and 18 are front cross-sectional views of a pouring spout 60 employing the spout body 50 shown in FIGS. be.
A pouring spout 60 shown in FIGS. 17 and 18 is obtained by changing the spout body 20 of the pouring spout 10 shown in FIGS. be.

The pouring spout 60 is detachably provided with a stopper member in a stopper arrangement region between the proximal end of the outer sleeve 30 at the fitting position with respect to the spout body 50 and the mounting portion 21 of the spout body 20. It is possible to assemble a pouring spout.
The fitting position of the outer sleeve 30 with respect to the spout body 50 is such that the fitting receiving portion 34 inside the distal end portion of the outer sleeve 30 is fitted to the outside of the sealing fitting portion 24 of the spout body 50 , and the spout of the contents flow path 25 is formed. 25b is closed.

In this specification, the axis of the pouring cylinder portion 22 of the spout body 50 is treated as the axis of the pouring spout, the spout body, and the contents flow path 25 .
A pair of tip end side walls 51 of the spout body 50 shown in FIGS. 15 to 18 are positioned within a projected range of the sealing fitting portion 24 in the axial direction of the spout body 50 . The pair of tip side walls 51 do not interfere with the axial sliding movement of the outer sleeve 30 relative to the spout body 50 .

In FIGS. 15, 17 and 18, the reference numeral 110A is given to the refill container employing the spout 60 for pouring of the modified example.
FIG. 17 shows a case in which the outer sleeve main cylindrical portion 33 of the pouring spout 60 of the refillable container 110A is inserted into the neck portion 121 of the packaging container 120 facing upward, and the stopper protrusion 32 of the outer sleeve 30 is placed at the tip of the neck portion 121 of the packaging container. The contact state (state in which the outer sleeve 30 is placed at the insertion limit position with respect to the packaging container 120) is shown. However, in FIG. 17, the outer sleeve 30 is arranged in the mating position with respect to the spout body 50. As shown in FIG.

FIG. 18 shows the spout body 50 of the pouring spout 60 shown in FIG. A state in which the outlet 25b is opened is shown.

The outer sleeve 30 of the pouring spout 60 illustrated in FIGS. 17 and 18 employs one in which the axial dimension of the main cylindrical portion 33 of the sleeve body 31 is slightly shorter than the axial dimension of the packaging container neck portion 121. ing. 18, the pouring spout 60 exemplified here has an opening portion ( The opened portion) is entirely positioned within the mouth and neck portion 121 of the packaging container.
In FIG. 18, the imaginary conical surface 30S of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 with a vertical angle (θ) of 90 degrees is positioned in contact with the neck portion 121 of the packaging container.

The outer sleeve 30 of the pouring spout 60 is slidable relative to the spout body in the axial direction of the spout body in the same manner as the outer sleeve 30 of the pouring spout 10 shown in FIGS.
Further, the outer sleeve 30 of the pouring spout 60 is rotatable relative to the spout body in the circumferential direction of the side surface of the pouring cylinder portion 22. The outer sleeve of the pouring spout 10 shown in FIGS. Similar to 30.

19 is a cross-sectional view taken along the line AA in FIG. 18. FIG.
As shown in FIGS. 16 to 19, the outlets 25b of the spout body 50 are located on both sides of the tip of the spout body 50 with the channel partition wall 52 interposed therebetween.
As shown in FIGS. 15, 16, and 19, the spout 25b of the spout 60 for pouring is formed by the tip of the spout body 50, the tip of the spout tube 22, the sealing fitting portion 24, and the pair of tip side walls 51. It is an enclosed area.
The spout 25b of the spout main body 50 has a limited dimension in the circumferential direction of the spout main body 50 (the direction around the axis of the spout 60) compared to the case where the tip side wall 51 is not provided.

As shown in FIG. 18, by opening the spout 25b of the spout 60 for pouring, the contents in the refill container 110A can be discharged from the spout 25b.
The spout 25b is a part of the tip of the content channel 25 (the portion of the content channel 25 located at the tip of the spout body 50).
As shown in FIG. 19, the discharge of the content 13 from the tip of the content flow path 25 is limited to the spout 25b between the pair of tip side walls 51 in the circumferential direction of the spout body 50. As shown in FIG.

As shown in FIG. 19, tip sidewalls 51 on both sides in the circumferential direction of the spout body 50 of the spout 25b serve to limit the discharge of the content 13 in the content flow path 25 to the spout 25b. In addition, the tip side walls 51 on both sides in the circumferential direction of the spout body 50 of the spout 25b are provided between the tip side walls 51 and the sealing fitting portion 24 and the inner peripheral surface of the packaging container mouth neck portion 121. The container body of the packaging container 120 It plays a role of securing the ventilation area 14 for passing the air G pushed out from 124 as the filling of the contents 13 progresses and exhausting it to the outside of the packaging container 120 .

The ventilation area 14 is part of the ventilation path 12 between the spout body 50 and the inner peripheral surface of the neck portion 121 of the packaging container.
Due to the presence of the tip side wall 51, the pouring spout 60 has a sealing fitting part 24 in the air passage 12 between the pouring protrusion 53 of the spout body 50 and the inner peripheral surface of the packaging container neck part 121 and the tip. It is possible to prevent the entire area around the side wall 51 from being clogged with the contents discharged from the outlet 25b, and secure the ventilation area 14 in the ventilation path 12.例文帳に追加Therefore, the passage of the air G pushed out from the container main body 124 of the packaging container 120 along with the filling of the contents through the air passage 12 and the exhaust from the air passage 12 to the outside of the packaging container 120 can be reliably achieved. As a result, it is possible to prevent the air G from flowing into the ventilation path 12 from the container body 124 of the packaging container 120 from blocking the flow of the contents discharged from the outlet 25b into the ventilation path 12. Smooth flow down of the contents discharged from the container body 124 can be reliably realized.

The tip side wall 51 of the spout body 50 shown in FIGS. 16 to 19 has a lateral width dimension that protrudes from the channel partition wall 52 on both sides in the thickness direction.
A configuration in which the tip side wall 51 protrudes from the channel partition wall 52 of the spout body 50 only on one side in the thickness direction can also be adopted.
However, in order to more reliably secure the ventilation area 14 in the ventilation path 12, the tip portion side wall 51 projecting from the flow path partition wall 52 only on one side in the thickness direction is used. It is more advantageous to employ a distal end sidewall 51 configured to have a lateral dimension that overhangs.

The surface facing the spout 25b of the tip side wall 51 of the spout body 50 shown in FIGS.
However, in order to limit the discharge range of the content 13 from the spout 25b of the content channel 25 in the side circumferential direction of the spout main body 50, the surface of the tip side wall 51 facing the spout 25b is, for example, a channel partition. It is a flat surface that is inclined with respect to the flow channel partition wall 52 so as to approach a vertical plane that is perpendicular to the flow channel partition wall 52 and passes through the widthwise center of the flow channel partition wall 52 as the distance from the wall 52 increases. can be

As shown in FIG. 16, the end portion (base end portion) of the tip portion side wall 51 on the base end side of the spout body 50 is the channel partition wall 52 at the center portion in the width direction from the inner peripheral surface of the tip portion of the pouring tube portion 22. The spout body 50 is slanted so as to be located on the tip side as it approaches the partition wall side portion connected to the width direction end of the spout body 50 . The content flowing in the content channel 25 contacts the base end of the tip side wall 51 from the upstream side of the content channel 25, so that the content flows from the base end of the tip side wall 51 toward the channel partition wall 52. It flows along the channel partition wall 52 in the physical distribution channel 25 . The content flowing along the channel partition wall 52 from the base end of the tip side wall 51 prevents the content from stagnation near the channel partition wall 52, and the content from the outlet 25b in the channel tip region 25d. Facilitates release. The content flowing along the flow path partition wall 52 from the base end of the tip side wall 51 is prevented from staying at the inner corner between the flow path partition wall 52 and the tip side wall 51, and the content flows out from the spout 25b. It also contributes to release enhancement.

The base end portion of the tip portion side wall 51 is not limited to the shape illustrated in FIG. It may be an inclined flat surface or the like that is located on the base end side of the spout body 50 and that is inclined with respect to the axis of the spout body 50 as the distance from the end to the width direction of the flow path partition wall 52 increases.

FIG. 18 illustrates a configuration in which the imaginary conical surface 30S of the apex angle (θ) of 90 degrees of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 is positioned in contact with the neck portion 121 of the packaging container.
However, the pouring spout 60 adjusts the axial dimension of the outer sleeve main cylinder portion 33 so that the imaginary conical surface 30S with the vertical angle (θ) of 90 degrees of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 is the packaging container opening. A configuration in which it is located at a distance from the neck 121 is also possible.

If the imaginary conical surface 30S of the apex angle (θ) of 90 degrees of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 is positioned away from the neck portion 121 of the packaging container, the contents discharged from the spout 25b Smooth flow down of the object to the container main body 124 can be more reliably realized.
In addition, in order to more reliably realize the smooth flow of the contents discharged from the outlet 25b into the container body 124, the vertical angle (θ) of the outer sleeve 30 at the insertion limit position with respect to the packaging container 120 is assumed to be 120 degrees. It is also possible to employ a configuration in which the conical surface 30S is located at a distance from the neck portion 121 of the packaging container.

Although the present invention has been described above based on the best mode, the present invention is not limited to the above-described best mode, and various modifications are possible without departing from the gist of the present invention.

The sleeve receiving portion of the pouring spout is not limited to being a part of the mounting portion 21 of the spout body. A protrusion (sleeve receiving protrusion) can also be employed.
When a sleeve receiving projection separate from the mounting portion 21 is adopted as the sleeve receiving portion, a stopper arrangement area is secured between the sleeve receiving projection and the base end of the outer sleeve at the fitting position with respect to the spout body. Adoptable.

The spout body may also adopt a configuration without flow channel partition walls for forming a plurality of divided flow channels in the content flow channel. The flow channel partition wall of the spout body can adopt either a structure extending over the entire length of the content flow channel or a structure formed only at the tip of the content flow channel.
The sealing fitting portion of the spout body is, for example, a support piece portion (for example, the tip in FIG. It is also possible to adopt a structure supported by the side wall 51). In the case of this configuration, the spout is ensured between the supporting pieces adjacent to each other in the circumferential direction of the pouring tube.

The spout body may adopt a configuration in which three or more divided channels are formed in the contents channel 25 by channel partition walls.
The three or more divided channels can be formed, for example, by plate-like channel partition walls radially extending in three or more mutually different directions from the central portion of the cross section of the contents channel 25 .
In the case of a configuration having channel partition walls extending in three or more directions from the cross-sectional center of the content channel 25, the spout main body is arranged in the direction opposite to the cross-sectional center of the content channel 25 of each channel partition wall. It is possible to employ a configuration in which a tip side wall is formed at the tip. The tip side wall is formed to protrude from the tip of the flow path partition wall to both sides or one side in the thickness direction of the flow path partition wall.

The stopper member is not particularly limited as long as it can be arranged in the stopper arrangement region of the pouring spout.
The stopper member may be, for example, connected to the sleeve receiving portion or the outer sleeve via a fragile thin-walled portion that can be cut with fingers so as to be separable with fingers, or the sleeve receiving portion, the outer sleeve, or the pouring tube portion. , a configuration in which an engagement projection that can be disengaged by a pulling force perpendicular to the axis of the pouring tube is engaged, an engagement formed on the sleeve receiving part, the outer sleeve, or the pouring tube It is also possible to adopt a configuration in which an engagement recess is formed that engages with the mating projection in a disengageable manner by a pulling force perpendicular to the axis of the extraction tube.
Also, the stopper member may adopt a configuration that does not have a handle piece.
However, the stopper member adopts a configuration in which the stopper member is arranged so as to be pulled out from the stopper arrangement area by a pulling force in a direction perpendicular to the axis of the pouring cylinder.

The tapered stopper protrusion of the stopper member is not limited to the structure formed in a ring shape around the base end of the sleeve main body of the outer sleeve, but is distributed at a plurality of locations in the circumferential direction of the base end of the sleeve main body of the outer sleeve. A staggered configuration is also possible.

DESCRIPTION OF SYMBOLS 10... Spout for pouring, 10A... Spout for pouring with a stopper member, 11... Stopper arrangement area, 12... Ventilation path, 13... Contents, 14... Ventilation area, 20... Spout body, 21... Mounting part, 21a... Base end surface 21b... Attachment main part 21c... Sleeve receiving part 21d... Sleeve receiving surface 22... Extraction tube part 22a... Arrangement area extension part 23... Support piece part (flow path partition wall) 23a... Protruding distal end portion 24 Sealing fitting portion 24a Reinforcement rib 24b Locking projection 25 Content channel 25a Base end opening 25b Spout 25c Divided channel 25d Stream Path tip region 25e Divided channel 26 Extraction projection 28 Liquid stop rib 30, 30A, 30B, 30C Outer sleeve 30S Virtual conical surface 31 Sleeve main body 32 Stopper projection Part 32A... Stopper projecting plate part 32a... Mouth/neck abutment surface 32b... Side end surface 32c... Base piece part 32d... Main piece part 33... Main cylindrical part (of sleeve main body) 34... Fit receiving part , 34a locking recess 35 base end surface of sleeve 36 region without stopper protrusion 40 stopper member 41 interposed piece 41L separation distance (between both ends of interposed piece) 41T (interposed 42... Handle piece 43... Base piece part 43a... Bridge part 43b... Extension plate part 44... Overhanging piece part 50... Spout main body 51... Tip side wall, support piece Portion 52 Supporting piece (flow path partition wall) 53 Extraction projection 60 Extraction spout 110, 110A Container with extraction spout (refillable container) 111 (Container) Container Section 120 Container to be filled (packaging container) 121 Mouth and neck of container (neck) 122 Shoulder 123 Mouth and neck flow path 124 Container body 125 Cylindrical body G Air .DELTA.L: Distance between the outer sleeve at the fitting position and the stopper receiving portion, .theta.: apex angle (of virtual conical surface).

Claims (7)

A spout body including a mounting portion attached to a container in which contents are stored and a pouring cylinder portion protruding from the mounting portion; and an outer sleeve;
The spout main body is supported by the mounting portion, the pouring tube portion, and a support piece projecting from the pouring tube portion, and is formed at a position spaced apart from the pouring tube portion toward the tip side thereof. a sealing fitting portion that seals the inside of the tip portion of the outer sleeve by being fitted to the inside of the tip portion of the sleeve; and a channel partition wall that divides the content channel into a plurality of divided channels from at least the distal end of the pouring tube portion to the sealing fitting portion, and the content channel is the sealed portion. including a spout secured between the fitting portion and the tip of the spout tube portion,
The outer sleeve includes a tubular sleeve body that is externally fitted on the spout body and that the sealing fitting portion is detachably fitted to the distal end, and a base end of the sleeve body extending along the axis of the sleeve body. stopper projections are formed on both sides in the vertical left and right direction and are abutted against the tip of the neck of the container into which the sleeve body is inserted, thereby restricting the displacement of the sleeve body in the insertion direction with respect to the neck of the container. , the lateral dimension of the proximal end of the sleeve, which is composed of the proximal end of the outer sleeve and the stopper protrusions on both sides in the lateral direction , is the axis of the proximal end of the outer sleeve at the proximal end of the sleeve, a spout having an anterior-posterior dimension perpendicular to and greater than the dimension through the axis of the proximal end of said outer sleeve. Between the stopper projections on both sides in the left-right direction in the circumferential direction, the base end of the sleeve body is provided on both sides in the longitudinal direction perpendicular to the axial direction and the left-right direction of the sleeve body at the base end of the sleeve body. 2. A pouring spout according to claim 1, wherein an exposed stopper projection-free region is ensured. The stopper protrusion is formed in a plate-like shape extending perpendicularly to the axial direction of the sleeve body, and one surface of the stopper protrusion constitutes a mouth/neck abutting surface that abuts against the tip of the mouth/neck of the container. A pouring spout according to claim 1 or 2. The stopper protrusion has a pair of side end faces extending parallel to each other in the left-right direction, and the pair of side end faces of the stopper protrusion on one side in the left-right direction is the same as that of the stopper protrusion on the other side in the left-right direction. The spout for pouring according to any one of claims 1 to 3, which is located on the extension of the pair of side end faces. The spout body has a plurality of tip side walls extending from the tip of the spout tube to the outer circumference of the sealing fitting part, and the spout extends in the circumferential direction of the side face of the spout body. A pouring spout as claimed in any one of claims 1 to 4 secured between said tip sidewalls adjacent to each other. A spout for pouring according to any one of claims 1 to 5, and a sleeve receiver which is a portion located around the proximal end opposite to the tip of the pouring tube portion in the mounting portion of the spout body. to the mounting portion side of the outer sleeve with respect to the spout body, the tip portion of which is fitted in the sealing fitting portion of the spout body and which is provided in the stopper arrangement area secured between the portion and the outer sleeve. and a stopper member that regulates the movement of
A pouring spout with a stopper member, wherein the stopper member can be pulled out from the stopper arrangement region by a pull-out force in a direction perpendicular to the axis of the pouring tube portion. A mounting portion of the pouring spout according to any one of claims 1 to 5 or the pouring spout of the pouring spout with a stopper member according to claim 6 is attached to the container, A spouted container for pouring, wherein the content channel of the spout body communicates with an interior region of the container.

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