JP4424538B2 - Thin container - Google Patents

Description

  The present invention relates to a container, and more specifically, it is possible to easily transfer a stored liquid to another container without leakage of the liquid, and the same effect is exhibited even when a thin-walled container body with poor shape retention is adopted. Related to the container to be used.

  As a thin container, a bag made by fusing a plurality of films and having a spout part integrally formed is known (Patent Document 1), and a spout provided separately from the thin container body Is known that has been thermally welded (Patent Document 2).

  The former thin-walled container is formed by, for example, fusing and integrating a pair of side wall films and a folded bottom film, and integrally forming a cylindrical spout portion with the tip closed at the upper corner. In the latter case, the spout is thermally welded to the base part fused to the side wall of the thin-walled container, the pouring cylinder extending outward from the base part and having a thread on the outer peripheral surface, and the end face of the pouring pipe. A sealing member, a cap screw-fitted with a thread on the outer peripheral surface of the extraction cylinder, and a contact ring that is in liquid-tight contact with the end surface of the extraction cylinder provided on the inner surface of the cap.

In the former of the conventional thin-walled containers, the spout is cut to open the spout, and the stored liquid is injected into the mouth of the other container from the spout. In the latter case, the cap is removed and the stored liquid is injected into the mouth of another container.
JP 2002-179084 A JP 2002-104446 A

  Many thin-walled containers are intended for refilling or disposable use, and therefore, it is required that they can be manufactured at low cost, and the film is preferably as thin as possible. For this reason, there are many cases where the shape retention is relatively poor even when the contents are filled, and the liquid may leak in an unstable state during refilling.

  The present invention has been made in view of the above points, and even if the container body is formed thin, it is possible to transfer the liquid in a stable state without leakage, and easy handling at the time of transfer is also possible. Furthermore, the present invention proposes a container that has a very simple structure and can be manufactured at low cost.

As a first means, the container body 2 is provided with a pouring stopper 3, and the pouring stopper 3 includes a tubular stopper body 6 that is liquid-tightly fixed to the mouth portion 4 of the container body; A cap 7 attached to the main body, and a punching hole 16 is formed in the top of the cap, and a plug 14 for closing the pouring hole is supported in the plug main body, and the plug main body of the cap The cap body is configured so that the inside and the outside of the plug communicate with each other through the pouring hole, and the cap 7 is configured to be tightly fitted to the refill target port portion 26, and the recess 27 forms an air passage on the outer surface of the cap. The column body 28 extending from the stopper body 6 into the container body 2 is extended, the column body 28 is extended from the stopper body 6, and the cylindrical portions are spaced apart from each other. A pair of plate-like portions 28b provided vertically, and a window 29 is provided at the base end portion of the tubular portion. It is characterized by that.

As a second means , in the first means, the lower end portion of the peripheral wall 17 of the cap 7 is configured to be ruptureable through a breakage portion 21, and the peripheral wall below the breakage portion is connected to the stopper main body 6 in an uneven manner. It was overwhelmed through the joint means so that it could not be pulled out.

As the third means, in the first means, the stopper main body 6 is liquid-tightly fixed to the mouth part 4 of the container main body 2 at the outer peripheral lower part, and a plurality of circumferentially protruding supports are provided on the inner peripheral side. The cap 14 is supported by a flange 15, and the cap 7 has a peripheral wall 17 screwed onto the outer periphery of the stopper main body, and a seal cylinder 20 is vertically suspended from the top wall 18 so as to be liquid-tightly slidable on the inner periphery of the stopper main body. did.

  The container of the present invention can be poured out by a simple operation of raising the cap 7 with respect to the stopper body 6, and can easily refill the stored liquid, and its structure is simple and can be manufactured at low cost. It is. Further, if the cap 7 is configured to be tightly fitted to the refill target port portion 26, the pouring hole can be opened with the cap 7 fitted in the refill target port portion 26, and there is no fear of liquid leakage at all. It can be refilled.

  Further, when the concave portion 27 that forms the air passage when fitted to the refill target mouth portion 26 is provided on the outer surface of the cap 7, the outer periphery of the cap 7 is closely fitted to the refill target mouth portion 26 and is stable. Even if it is fixed, the replacement air is discharged through the air passage formed by the recess 27, so that refilling is easier.

  Further, when the column body 28 extending from the stopper body 6 into the container body 2 is extended, when the container 1 is inverted by inserting the extraction stopper 3 into the refilling target mouth portion 26, even by hand. There is an advantage that it can be refilled even if it is not. The column body 28 is composed of a cylindrical portion 28a extending from the plug body 6 and a pair of plate-like portions 28b provided vertically spaced from both sides of the cylindrical portion, and the base end portion of the cylindrical portion. If a window 29 is provided, the refilling can be performed more efficiently.

  Furthermore, the lower end portion of the peripheral wall 17 of the cap 7 is configured to be ruptureable via a breakage portion 21, and the peripheral wall below the breakage portion is engaged with the plug body 6 so as not to be pulled out through the concave and convex engagement means. In this case, it can be expressed that the container 1 is not used, and it has the advantage of improving its reliability by increasing its reliability.

  In addition, the lower part of the outer periphery of the container body 2 is liquid-tightly fixed to the mouth part 4 and the stopper 14 is supported by a plurality of circumferentially projecting support rods 15 on the inner periphery. When the peripheral wall 17 is screwed and the cap 7 is provided with a seal cylinder 20 suspended from the top wall 18 so as to be liquid-tightly slidable on the inner periphery of the stopper body, sufficient liquid-tightness can be obtained. A container having a good appearance can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In the drawings, reference numeral 1 denotes a container, which is provided with a container body 2 and a spout 3.

  The container body 2 can be applied in various forms as long as the spout 3 can be attached to the mouth part 4, for example, bottle-shaped or bag-shaped In particular, one having a container body formed in a thin wall can be preferably employed. As a thin container main body, for example, a bag-like one formed by welding using a plurality of films or a bottle-like or bag-like one formed by blow molding can be adopted, but not limited thereto. In the embodiment shown in FIG. 1, a plurality of films are fused at predetermined edges to form a bag, and the periphery of two rectangular films is welded by appropriate welding means such as heat sealing to form a seal portion 5. By forming the bag, the storage portion A is defined in the bag. Although not shown as an example of bag making, it is also possible to adopt a so-called standing thin-walled container form in which two side wall films and one bottom wall film are made to stand up by welding each peripheral part. Is possible.

  The pouring tap 3 is formed of a synthetic resin or the like, and includes a plug body 6 and a cap 7.

  The stopper body 6 has a cylindrical shape that is liquid-tightly fixed to the mouth portion 4 of the container body 2. In the illustrated example, a part of the seal portion 5 at the edge of the bag-like container body 2 is used as the mouth portion 4. The lower part of the outer periphery of the main body 6 is welded and fixed to the mouth part 4. More specifically, the stopper body 6 is provided with a triangular plate-like plate portion 9 protruding from both sides of the lower portion of the tube portion 8 for the purpose of improving the fixing property to the container body 2 and a reinforcing flange 10 protruding from the upper surface position. The film constituting the container body 2 is fused and fixed in a state of covering the plate portion 9 and the lower portion of the cylindrical portion 8 continuous with the plate portion 9. Further, a locking ridge 11 for providing a virgin sealing property is provided around the reinforcing flange 10, and a locking ridge 12 for preventing the cap 7 from coming out is provided at a position above the predetermined interval. There are around. Further, a thread 13 is provided above the locking protrusion. A plug 14 is supported in the cylindrical portion 8. The stopper 14 closes a later-described pouring hole provided at the top of the cap 7 so as to be openable and closable. In the illustrated example, the stopper 14 has a cylindrical shape supported by a plurality of circumferentially projecting support rods 15. Yes.

  The cap 7 is attached in a state where the upper end opening of the plug body 6 is closed and can be lifted, and a top is provided with a pouring hole 16. In the illustrated example, the cap 7 has a cylindrical shape with a top wall 18 extending from the upper end of the peripheral wall 17. The cap hole 7 is formed in the center of the top wall 18, and the cap 7 is short downward from the periphery. The cylindrical part 19 is suspended. A seal cylinder 20 is suspended from a predetermined position on the back surface of the top wall 18. Further, the lower end portion of the peripheral wall 17 is configured to be able to be cut off via a break portion 21 for providing a virgin seal function, and an engagement protrusion 22 is provided on the inner periphery thereof. The fracture portion 21 is formed thin, but is not limited to this, and other configurations such as perforation and connection with a plurality of rod-shaped pieces in the circumferential direction may be employed. Further, at a predetermined position directly above the breakage portion 21, a cap protrusion 23 is provided so as to prevent the cap 7 from slipping out and is brought into contact with and locked to the locking protrusion 12 when raised. . Further, a screw thread 24 is provided above it.

  Then, the engaging ridge 22 and the retaining ridge 23 are moved over the locking ridge 12, and the engaging ridge 22 is moved over and engaged with the locking ridge 11, thereby The peripheral wall 17 is screwed to the seal tube 20, and the seal cylinder 20 is fitted to the inner circumference of the cylinder portion 8 so as to be liquid-tightly slidable. It is attached to the stopper body 6.

  Further, the cap 7 may be configured to be tightly fitted to the refill target mouth so that the stored liquid can be easily refilled. The refill target mouth 26 is, for example, the mouth of the refill target container 25 as shown in FIG. Or the opening part of the simple tank etc. which are not shown in figure.

  Furthermore, a recess 27 is formed on the outer surface of the cap 7 to form a ventilation path when fitted to the refilling target mouth portion 26. In the illustrated example, a wide recess 27 is formed on the outer periphery of the peripheral wall 17, and has a vertical width from the upper end of the peripheral wall 17 to a predetermined position below. The concave portion 27 only needs to have a vertical width that allows the inside and outside of the refill target container or the like to communicate with each other when fitted into the refill target port portion 26. Moreover, when providing the flange which contact | abuts the upper surface of the port part 26 to be refilled in the outer periphery of the cap 7, the recessed part which continues in the flange upper surface is also provided. Although four recesses 27 in the illustrated example are provided at equal intervals, the number is not limited. In addition, you may provide a recessed part in the inner surface of the opening part to be refilled.

  An example of using the container 1 configured as described above will be described. First, when filling the liquid into the container body 2, for example, as shown in FIG. 4, an unwelded portion 4a is formed on the upper portion of the seal portion 5, and the unwelded portion is injected after pouring the liquid therefrom. 4a is welded and filled.

  In use, the cap 7 is raised with respect to the stopper main body 7 so that the outlet hole 16 is opened to allow the inside and outside of the stopper body 6 to communicate with each other, so that the inside and outside of the container body 2 can communicate with each other. In the case of having a virgin seal function as shown in the example, the cap 7 is screwed up to break the breaking portion 21 due to the engagement between the locking protrusion 11 and the engaging protrusion 22, and the lower end of the peripheral wall 17 Are separated and the opened state can be seen at a glance. When the cap 7 can be tightly fitted in the mouth portion 26 of the refill target container 25, the cap 7 is placed in the refill target mouth portion 26 with the container 1 turned upside down as shown in FIG. Insert. At this time, air can be easily replaced by communicating the inside and outside of the refill target container 25 through the recess 27. Next, by turning the plug body 6, as shown in FIG. 5 (b), the plug body 6 in an inverted state is screwed up, and the plug 14 is raised accordingly, and the dispensing hole 16 is opened. The liquid in the container body 2 can be poured into the refill target container 25. The rise of the screw of the cap 7 stops at a position where the retaining projection 23 contacts the locking projection 12, and the cap 7 does not come out.

  FIG. 6 shows another embodiment, and shows an example in which a column 28 extending from the stopper body 6 into the container body 2 is extended. By providing this support body 28, even when the container main body 2 has poor shape retention, it is configured to be able to stand on the refill target container when it is fitted. In the illustrated example, the column body 28 includes a cylindrical portion 28a extending from the plug main body 6 and a pair of plate-like portions 28b provided vertically spaced from both sides of the cylindrical portion 28a. The plate-like portion 28b is suspended downward by connecting the upper ends to the lower surfaces on both sides of the plate portion 9, respectively. In addition, a window 29 is formed at the upper end of the cylindrical portion 28a. Other configurations are the same as those in the example of FIG.

  In this case, as shown in FIG. 9 (a), the container 1 is turned upside down, and the cap 7 is fitted into the refill target mouth portion 26. At this time, the inverted state of the container body 2 having poor shape retention is maintained even when the hand is released due to the presence of the support body 28. Next, by rotating the plug body 6 in the same manner as described above, the plug body 6 in an inverted state is screwed up as shown in FIG. 9 (b), and the plug 14 is raised accordingly, and the dispensing hole 16 is formed. The liquid in the container body 2 can be poured into the refill target container 25. In this case, the liquid can be refilled by leaving it as it is after opening the pouring hole 16. Other operations are the same as in the example of FIG.

It is a half sectional view of the container of the present invention. (Example 1) It is a principal part expanded sectional view of the extraction stopper part of this invention container. (Example 1) It is a perspective view of the stopper main body of this invention container. (Example 1) It is explanatory drawing at the time of filling of this invention container. (Example 1) It is explanatory drawing at the time of refilling of this invention container. (Example 1) It is a half sectional view of the container of the present invention. (Example 2) It is a principal part perspective view of the stopper main body of this invention container. (Example 2) It is a bottom view of the stopper main body of this invention container. (Example 2) It is explanatory drawing at the time of refilling of this invention container. (Example 2)

Explanation of symbols

2 ... container body, 3 ... pouring stopper, 4 ... mouth part, 6 ... stopper body, 7 ... cap, 14 ... stopper,
16 ... Pouring hole, 18 ... Top wall, 20 ... Seal tube, 21 ... Ruptured part, 26 ... Refill target mouth part,
27 ... Recess, 28 ... Staff, 28a ... Cylindrical part, 28b ... Plate-like part, 29 ... Window

Claims (3)

A container with a pouring plug 3 attached to the container main body 2, the pouring plug 3 having a cylindrical plug main body 6 that is liquid-tightly fixed to the mouth 4 of the container main body, and a cap attached to the main body. 7, and an opening 16 is formed at the top of the cap, and a stopper 14 for closing the outlet hole is supported in the stopper body, and the outlet of the stopper is lifted with respect to the stopper body. The cap body is configured so that the inside and outside of the plug body communicate with each other through the hole, the cap 7 is configured to be tightly fitted to the refill target port portion 26, and a concave portion 27 that forms an air passage is provided on the outer surface of the cap. 6 is a plate in which a column body 28 extending into the container body 2 is extended from 6, and a pair of the column bodies 28 are vertically suspended from the cylindrical body 28 a extending from the plug body 6 and spaced apart from both sides of the cylindrical body. And a window 29 is provided at the base end of the cylindrical portion. vessel. The lower end portion of the peripheral wall 17 of the cap 7 is configured to be ruptureable through a breaking portion 21, and the peripheral wall below the ruptured portion is engaged with the plug body 6 so as not to be pulled out through an uneven engagement means. The container according to 1. The stopper body 6 liquid-tightly fixes the lower outer periphery to the mouth portion 4 of the container body 2, and supports the stopper 14 with a plurality of circumferentially projecting support rods 15 on the inner periphery. The container according to claim 1, wherein a peripheral wall 17 is screwed to the outer periphery of the stopper main body, and a seal cylinder 20 is vertically suspended from the top wall 18 so as to be liquid-tightly slidable on the inner periphery of the stopper main body.