JP7386530B2 - connection system - Google Patents

Description

The present invention relates to a coupling system consisting of a female member, a plug that fits into the female member, and a male member that is inserted into the female member.

Conventionally, female members and male A connection system consisting of a member and a plug is known (see, for example, Patent Document 1).

This coupling system has a conduit passage extending in the axial direction, a female member provided in the packaging container, a plug that fits into a seat provided in an opening of one of the conduit passages in the female member, and The male member has an extending flow passage and is inserted into the conduction passage from the other opening of the female member.

Then, in the closed state where the plug is fitted into the seat of the female member, the male member is inserted through one opening of the conduction path of the female member, and the head of the male member is fitted into the seat of the female member. After engaging the plug in the female member, insert the male member into the female member's conduction path, and then push the plug out of one opening of the female member's conduction path and completely remove it from the seat of the female member. .

As a result, the seat part of the female member and the plug are separated and a gap is created, so that the communication hole provided on the circumferential surface of the male member is exposed inside the packaging container, and the flow path of the male member is closed. Since it communicates with the inside of the packaging container through the communication hole, the fluid inside the container can be discharged.

Since the fluid inside the container can be discharged using this connection system, this connection system has been applied to various packaging containers, such as packaging containers equipped with a pump (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2010-241454

However, since this coupling system has a structure in which the head of the male member engages with the plug as described above, it is necessary to form the head of the male member into a shape and size suitable for engagement with the plug. Ta. For this reason, for example, when applying this connection system to a packaging container equipped with a pump, the suction pipe of a general pump is often formed in a simple cylindrical shape, so a dedicated male member is attached to the tip of the suction pipe of the pump. had to be installed as an adapter. Moreover, since the shape of the pump's suction pipe varies depending on the manufacturer and the application, it is necessary to design a male member as an adapter each time the pump specifications change, resulting in the problem of increased development time and development costs. Such problems are not limited to packaging containers equipped with pumps, but also occur when this system is applied to other packaging containers.

The present invention has been made in view of the above-mentioned problems, and provides a connection system comprising a female member, a plug that fits into the female member, and a male member that is inserted into the female member and pushes out the plug from the female member. An object of the present invention is to provide a connection system that can easily and reliably discharge the fluid inside a container, thereby reducing the development period and cost.

In order to achieve the above object, the present invention has a female member provided in a packaging container, which has a conduction path extending in the axial direction, and a seat provided at an opening of one of the conduction paths of the female member. The plug has a fitting plug and a flow passage extending in the axial direction, is inserted into the conduction passage from the other opening of the conduction passage of the female member, and is fitted into the seat of the female member. a male member pushed out from one opening of the female member; the plug includes a wall portion that closes one opening of the conduction path of the female member; and a male member provided on the wall portion that closes the seat of the female member. an annular hook part that is fitted into the female member, one or more flow holes are formed along the circumferential direction in the hook part, and the plug is fitted into the seat part of the female member. In the case of a closed state, the communication port of the plug is closed by the conduction path of the female member, while the male member inserted into the conduction path of the female member causes the plug to close one of the female members. In the open state where the plug is pushed out from the opening, the flow port of the plug is exposed to the inside of the packaging container, and the flow path of the male member connects with the inside of the packaging container through the flow port of the plug. It is characterized by communication.

According to this, since one or more communication ports are formed along the circumferential direction in the hooking part of the plug, the male member inserted into the conduction path of the female member causes the plug to enter the conduction path of the female member. In the open state where the plug is pushed out from one opening, the flow port of the plug is exposed to the inside of the packaging container, and the flow path of the male member communicates with the inside of the container via the flow port of the plug. Therefore, the fluid inside the container can be easily and reliably discharged without necessarily engaging the male member with the plug.

Further, the plug may be pushed out from one opening of the conduction path of the female member in such a manner that a peripheral end of the hook portion and a tip end of the male member are in contact with each other. According to this, the present connection system can be easily applied to male members of various shapes.

Further, the plug may be connected to the female member via a deformable connecting member. According to this, when the plug is in an open state where it is pushed out from one opening of the female member, it is possible to prevent the plug from falling into the inside of the packaging container.

Further, the plug may be pushed out from one opening of the conduction path of the female member in such a manner that it separates from the seat of the female member. According to this, the entire flow port provided in the hooking portion of the plug is reliably exposed to the inside of the packaging container, so that the fluid inside the container can be reliably discharged.

Further, in the plug, the communication port may be formed in a notch shape at a peripheral end of the hooking portion. According to this, the flow port can be easily and reliably formed in the hook portion.

Moreover, the packaging container with a pump according to the present invention includes the coupling system, a pump mechanism in which the male member of the coupling system is provided as a suction pipe, and a packaging container in which the female member of the coupling system is provided, It is characterized in that the fluid inside the packaging container is discharged to the outside by a pump mechanism. According to this, the suction pipe of the pump can be used as is as a male component, so there is no need to separately develop a male component as an adapter each time the pump specifications change, and it is possible to reduce development time and development costs. becomes.

According to the present invention, since one or more communication ports are formed along the circumferential direction in the hooking portion of the plug, the male member inserted into the conduction path of the female member allows the plug to move into the conduction path of the female member. In the open state where the plug is pushed out from one opening of the plug, the flow port of the plug is exposed to the inside of the packaging container, and the flow path of the male member communicates with the inside of the container via the flow port of the plug. Therefore, the fluid inside the container can be easily and reliably discharged without necessarily engaging the male member with the plug. Therefore, for example, when this connection system is applied to a packaging container with a pump, the suction pipe of the pump can be used as a male member, so there is no need to separately develop a male member as an adapter each time the pump specifications change. In turn, it becomes possible to reduce the development period and development cost.

It is a front view of the female member and plug concerning the connection system of this embodiment. FIG. 2 is a front sectional view of the female member and plug of FIG. 1; FIG. 2 is a side cross-sectional view of the female member and plug of FIG. 1; FIG. 2 shows (a) an enlarged front view and (b) a sectional view taken along the line BB of the plug shown in FIG. 1; FIG. 2 is a front cross-sectional view of the connection system of this embodiment. Figure 6 is a side cross-sectional view of the coupling system of Figure 5;

Next, an embodiment in which the connection system according to the present invention is applied to a packaging container with a pump will be described with reference to FIGS. 1 to 6. In addition, in this embodiment, the upper part of FIG. 1 is described as the rear, and the lower part is the front.

The coupling system comprises a female member 1, a plug 2 that fits into the female member 1, and a male member 3 that is inserted into the female member 1 and pushes said plug 2 out of the female member 1. The female member 1 and the plug 2 are generally manufactured from a single plastic member by injection molding or the like. Further, the male member 3 is also generally manufactured from a plastic member by injection molding or the like, but may be manufactured from other materials such as a metal member.

As shown in FIGS. 1 to 3, the female member 1 has a conductive path 10 that passes through the interior in the axial direction, a female body portion 11 that extends in the axial direction, and a female body portion 11 provided on the front side of the female body portion 11. It is composed of an annular seat portion 12 having a circular shape, and a shoulder portion 13 provided between the female main body portion 11 and the seat portion 12. This female member 1 is welded or adhered to a flexible packaging container P such as a plastic packaging bag, and the packaging container P is further housed in a rigid pump-equipped container made of plastic or metal (not shown). In addition, in FIGS. 1 to 6, the lower part of the female member 1 is the inside of the packaging container P.

The conduction path 10 passes through the inside of the female member 1 in the axial direction from one opening 101 provided at the front end of the female member 1 to the other opening 102 provided at the rear end of the female member 1. The inner diameter of the female body portion 11, shoulder portion 13, and seat portion 12 gradually decreases in accordance with the inner diameters of the female body portion 11, shoulder portion 13, and seat portion 12.

The female main body portion 11 is formed into a cylindrical shape extending linearly in the axial direction, and has an inner diameter into which the male member 3 can be inserted. Two annular ribs 111 are formed at the rear of the female main body portion 11, and a jig can be hung on the annular ribs 111 during fluid filling.

The seat portion 12 is an annular wall member provided around one opening 101 of the female member 1, and the plug 2 is tightly fitted into the seat portion 12. The inner diameter is formed into which the main body portion 31) can be inserted.

The shoulder portion 13 has a tapered inner surface as a whole, and a predetermined space is provided inside the inner surface in the radial direction.

As shown in FIGS. 2 to 4, the plug 2 includes an umbrella-shaped thick end wall 20, a thin annular wall 21 continuous to the rear end of the end wall 20, and an annular wall. It includes a hooking part 22 connected to the rear end of the wall part 21 and two connecting parts 23 connecting the female member 1 and the plug 2.

The annular wall portion 21 has a stop surface 211 extending radially outward on the front side of the outer circumferential surface. Therefore, when the plug 2 is fitted into the seat 12 of the female member 1, the stop surface 211 of the end wall 20 of the plug 2 comes into contact with the front end surface of the seat 12 of the female member 1, and the plug 2 The fitting to the female member 1 is stopped.

Further, the annular wall portion 21 is formed with a sealing rim 212 that protrudes radially outward at the middle portion of the outer circumferential surface. Therefore, when the plug 2 is fitted into the seat 12 of the female member 1, the sealing rim 212 of the annular wall 21 of the plug 2 comes into pressure contact with the inner surface of the seat 12 of the female member 1, and the plug 2 The fitting to the female member 1 is made strong with a force above a certain level.

The hooking portion 22 is formed over the entire circumference of the plug 2, and expands or contracts in diameter radially as a whole. Specifically, when this hooking portion 22 is fitted into or separated from the seat portion 12 of the female member 1, the connecting portion between the annular wall portion 21 and the hooking portion 22 is elastically folded. By bending, it moves radially outward or radially inward.

Further, as shown in FIG. 4, the hooking portion 22 is formed in a shape that bulges radially outward and radially inward from the rear end of the annular wall portion 21. In particular, the hooking part 22 has, on the radially outer side, a shoulder outer surface 221 extending diagonally rearward from the outer circumferential surface of the annular wall section 21 and an outer circumferential surface 222 extending rearward from the shoulder outer surface 221. ing. This shoulder outer surface 221 is latched while coming into contact with the inner surface of the shoulder portion 13 of the female member 1 when the plug 2 is fitted into the seat portion 12 of the female member 1 as described later.

Furthermore, in this embodiment, as shown in FIG. 4, the hooking portion 22 has two cutout-shaped flow holes 223 formed at the peripheral end portion 22a. The communication port 223 has a horizontally long rectangular shape extending in the circumferential direction of the plug 2, and is formed in such a manner that it passes through the hooking portion 22 of the plug 2 in the radial direction, and faces the front side and the back side of the plug 2. placed in the state.

As shown in FIGS. 1 to 3, when the plug 2 is in the closed state where it is fitted into the seat 12 of the female member 1, the flow port 223 is closed by the seat 12 of the female member 1. Further, as shown in FIGS. 5 and 6, when the plug 2 is in an open state where it is pushed out from one opening 101 of the female member 1 by the male member 3 inserted into the conduction path 10 of the female member 1, The flow port 223 is exposed inside the packaging container P, and the flow path 30 of the male member 3 communicates with the inside of the packaging container P via the flow port 223 of the plug 2.

The connecting portions 23 are made of a deformable material that connects the female member 1 and the plug 2, and are provided on both sides of the female member 1 in the width direction. This connecting portion 23 bends greatly in the closed state when the plug 2 is fitted into the seat portion 12 of the female member 1, while it bends slightly in the open state when the plug 2 is detached from the seat portion 12 of the female member 1. Prevents it from falling off.

As shown in FIGS. 5 and 6, the male member 3 is a suction pipe of a pump, has a flow passage 30 extending in the axial direction for fluid to flow therein, and has a flow passage 30 provided on the front side. Consisting of a male main body part 31, a second male main body part 32 connected to the first male main body part 31, and a third male main body part 33 connected to the second male main body part 31. be done. A pump mechanism 34 (details omitted) is connected to the base end of the male member 3, and the pump mechanism 34 is provided with a lid 35 that is attached to a rigid packaging container (not shown).

The first male main body part 31 has a communication port 31a formed at its tip 3a that communicates with the flow path 30, and is inserted into the flow path 10 of the female member 1 as shown in FIGS. 5 and 6. At this time, the circumferential surface tightly contacts the inner surface of the seat 12 of the female member 1, and the distal end 3a of the hook 22 of the plug 2 is fitted into the seat 12 of the female member 1. (excluding the flow port 223), the flow path 30 communicates with the inside of the plug 2 via the communication port 31a.

Further, when the first male main body portion 31 is further inserted into the conduction path 10 of the female member 1, the tip portion 3a maintains a state in which it is in contact with the peripheral end portion 22a of the hooking portion 22 of the plug 2. , the plug 2 is pushed out from one opening 101 of the female member 1, and the plug 2 is finally separated from the seat portion 12 of the female member 1, as shown in FIGS. 5 and 6.

The second male body part 32 is formed into a cylindrical shape with a diameter larger than the outer diameter of the first male body part 31, and as shown in FIGS. When inserted, it comes into close contact with the inner surface of the conduction path 10 of the female member 1.

The third male body portion 33 is formed into a cylindrical shape with a diameter larger than the outer diameter of the second male body portion 32, and as shown in FIGS. 5 and 6, the tip portion 3a of the male member 3 is When the plug 2 leaves the seat 22 of the female member 1 while in contact with the circumferential end 22a of the hooking part 22 of the plug 2, the male member 3 is brought into contact with the end surface of the annular rib 111 of the female member 1. Prevents further insertion of .

Next, the operation of the connection system of this embodiment will be explained.

As shown in FIGS. 1 to 3, in the closed state in which the plug 2 is fitted into the seat portion 12 of the female member 1, the annular wall portion 21 (sealing rim 212) of the plug 2 is in close contact with the inner surface of the seat portion 12. At the same time, the hooking portion 22 of the plug 2 is hooked onto the shoulder portion 13 of the female member 1. At this time, the flow port 223 of the hooking portion 22 of the plug 2 is closed by the conduction path 10 of the female member 1.

Next, when the male member 3 is inserted into the conduction path 10 from the other opening 102 of the conduction path 10 of the female member 1, the tip end 3a of the male member 1 touches the peripheral end of the hooking portion 22 of the plug 2. 22a, as the male member 1 is further inserted, the plug 2 is pushed out from one opening 101 of the conduction path 10 of the female member 1, and as shown in FIGS. At this time, the plug 2 separates from the seat portion 12 of the female member 1 and becomes open. At this time, the flow port 223 of the hooking portion 22 of the plug 2 is exposed inside the packaging container P, and the flow path 30 of the male member 3 is connected to the packaging container through the flow port 223 of the hooking portion 22 of the plug 2. It communicates with the inside of P.

In this embodiment, even when the plug 2 is detached from the seat 12 of the female member 1, the surface position of the peripheral end 22a of the hooking part 22 of the plug 2 and the tip of the seat 12 of the female member 1 are Since the surface positions of the female member 1 and the plug 2 coincide with each other, there is no gap between the female member 1 and the plug 2 except for the flow opening 223.

Therefore, even if the male member 1 is not engaged with the plug 2, the fluid inside the packaging container P can be easily and reliably discharged. Therefore, when this connection system is applied to a packaging container with a pump, the suction pipe of the pump can be used as is as a male member, so there is no need to separately develop a male member as an adapter every time the pump specifications change. It becomes possible to reduce the period and development cost.

In this embodiment, when the male member 3 pushes out the plug 2 from one opening 101 of the conduction path 10 of the female member 1, the peripheral end 22a of the hooking part 22 of the plug 2 and the tip end of the male member 3 3a, but other parts of the plug 2 and the tip 3a of the male member 3 may be brought into contact with each other.

Further, although the plug 2 is detached from the seat portion 12 of the female member 1, if part or all of the flow port 223 of the hooking portion 22 of the plug 2 is exposed inside the packaging container P, A part of the peripheral end 22a of the hooking part 22 of the plug 2 may remain fitted into the seat part 12 of the female member 1.

Further, although the communication port 223 is formed in the shape of a notch at the peripheral end 22a of the hooking portion 22 of the plug 2, it may be formed in other shapes such as a hole shape.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as the present invention or within an equivalent scope.

DESCRIPTION OF SYMBOLS 1... Female member 10... Conduction path 101... One opening 102... Other opening 11... Female main body part 111... Annular rib 12... Seat part 13... Shoulder part 2... Plug 20... End wall part 21... Annular wall Part 211...Stopping surface 212...Sealing rim 22...Latching part 22a...Peripheral end portion 221...Shoulder outer surface 222...Outer circumferential surface 223...Flow port 23...Connecting portion 3...Male member 3a...Tip portion 30...Flow path 31 ...First male main body part 31a...Communication port 32...Second male main body part 33...Third male main body part 34...Pump mechanism 35...Lid part

Claims (6)

A female member having a conduction path extending in the axial direction and provided in the packaging container, a plug that fits into a seat provided in one opening of the conduction path of the female member, and a flow path extending in the axial direction. a male member which is inserted into the conduction path from the other opening of the conduction path of the female member and pushes out the plug fitted in the seat of the female member from the one opening of the female member; Equipped with
The plug includes a wall portion that closes one opening of the conduction path of the female member, and an annular hook portion that is provided on the wall portion and is fitted into the seat portion of the female member. One or more flow holes are formed along the circumferential direction in the hooking part,
When the plug is in a closed state in which it is fitted into the seat of the female member, the flow port of the plug is blocked by the conduction path of the female member;
When the male member inserted into the conduction path of the female member is in an open state in which the plug is pushed out from one opening of the female member, the flow port of the plug is exposed to the inside of the packaging container. The connection system is characterized in that the flow path of the male member communicates with the interior of the packaging container via the flow port of the plug. 2. The connection system according to claim 1, wherein the plug is pushed out from one opening of the conduit passage of the female member in such a manner that a peripheral end of the hook portion and a tip end of the male member are in contact with each other. 3. A connection system according to claim 1 or claim 2, wherein the plug is connected to the female member via a deformable connection member. 4. A coupling system according to any one of claims 1 to 3, wherein the plug is pushed out of one opening of the conduit passage of the female member in such a manner that it separates from the seat of the female member. The connection system according to any one of claims 1 to 4, wherein the plug has the communication port formed in a notch shape at a peripheral end of the hooking part. The connection system according to any one of claims 1 to 5,
a pump mechanism in which the male member of the coupling system is provided as a suction tube;
a packaging container in which the female member of the coupling system is provided;
A packaging container with a pump, characterized in that the fluid inside the packaging container is discharged to the outside by a pump mechanism.