JP2006306472A - Synthetic resin thin-walled container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a thin-walled container which is of a disposable type but is handier than a conventional pouch and facilitates the formation of a stopper for blocking a spout cylinder mouth, the stopper being necessary for using the contents of the container in several times, in order to solve the problem wherein a disposable thin-walled container made conventionally of a pouch gives a trouble in filling the container with contents, and is so flexible as to bring such disadvantages as inconvenience in use and difficulty in keeping the container in a standing position. <P>SOLUTION: A first breakable groove 6 is formed downward and a second groove 7 is formed upward at a proper gap on the upper outer surface of an upper face blocked spout 4 erecting from a container 1, both grooves 6 and 7 being formed around the upper outer surface. The part of spout 4 higher than the second groove 7 serves as a head 8, and the part of spout 4 between the first and second grooves 6 and 7 serves as a grip cylinder 11. The head 8 and the grip cylinder 11 combine to form a stopper 10. The head 8 of the stopper 10 is pushed forcibly from an opening 16 of the spout cylinder upper end, which is formed by breaking the first groove 6, into the spout cylinder upper end, and the peripheral edge of the opening 16 of the spout cylinder upper end is fitted into the second groove 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a thin-walled container made of synthetic resin, which is mainly used for disposal.

In recent years, a bag-like container used for a refill container called a pouch has been used as a thin-walled container for disposal. However, since the container is in a bag shape, it is difficult to fill the contents, it is difficult to hold, and the container collapses. There were drawbacks such as easy.
To eliminate these disadvantages,
A thin-walled container having a large cylindrical filling port is provided by blow molding, and after filling the contents from the filling port, the filling port is secondarily processed into a relatively small spout to make a thin-walled container for disposal. It is known. (Patent Document 1).
Japanese Patent Laid-Open No. 11-130031

  The present invention relates to a disposable container that is easy to use and can be formed at a low cost. In particular, the present invention is provided to facilitate the formation of a pouring tube with a palate.

As a first means, on the upper outer surface of the top-closed pouring tube 4 standing up from the container body 1, a first concave groove 6 for breaking is provided below with a suitable gap, and a second concave groove 7 is provided on the upper side. Circulate each,
The cylindrical portion above the second concave groove 7 is on the head 8, the cylindrical portion between the first and second concave grooves is on the gripping cylinder 11, and the head and the gripping cylinder are used as plugs 10 to form the first concave groove 6. The plug 10 can be separated by breaking,
The stopper was formed such that the head 8 was forcibly pushed into the upper end of the dispensing tube 4 through the opening 16 formed by the above-described breakage, and the periphery of the opening could be fitted into the second groove 7.

  As a second means, the head 8 is provided with the first means, and the head 8 is a tapered head having a high center on the upper surface and a low outer peripheral surface on the upper surface.

  As a third means, the first concave portion is provided from the outer surface of the extraction cylinder portion below the first concave groove 6 and the outer surface of the gripping cylinder 11 portion above the portion as the first means or the second means. First and second finger-hanging projecting plates 12 and 13 for breaking the groove 6 were projected.

  As a fourth means, the first, second, or third means is provided, and the container body portion below the first concave groove 6 and the gripping cylinder 11 are integrally connected by a string-like piece 14.

  As the fifth means, the first, second, third or fourth means is provided, and the container body 1 is bifurcated at the upper part of the peripheral wall 3 rising from the outer periphery of the bottom plate. The entire branch cylinder was blow-molded as the above-described dispensing cylinder 4, and the other branch cylinder was blow-molded as a filling cylinder 5 having an upper end opening.

  By forming the plug 10 for opening and closing the opening portion at the upper end of the dispensing cylinder 4 at the same time as the container body molding, it is easy to separate the stopper from the upper end of the dispensing cylinder. Furthermore, it is easy to seal the top opening portion of the dispensing cylinder by the stopper.

  According to the second aspect, the forced pressing of the head 8 into the upper end portion of the opened dispensing cylinder 4 can be easily performed using the tapered surface.

  By making it like Claim 3, it becomes easy to isolate | separate the stopper 10 from the upper part of the extraction | pouring pipe | tube, and it is attached to the holding | grip cylinder 11 that plugs it into the upper opening part of the extraction | injection cylinder, and also removes this plug. It is convenient that the second finger-hanging protruding plate 13 can be held together with the gripping cylinder.

  According to the fourth aspect of the present invention, since the string-like piece 14 connects the container body and the stopper even after the stopper 10 is removed, the stopper is not lost, and the stopper can be moved to the container body even if the stopper is released. Since it is connected via a string-like piece, there is no problem with the location of the stopper.

  According to the fifth aspect, it is easy to close the upper end closing portion of the container-filling cylinder 5 in the container body, and the container can be easily formed.

  Referring to the drawings, reference numeral 1 denotes a synthetic resin thin-walled container. A peripheral wall 3 is erected from the outer periphery of a flat bottom plate 2. One of the upper portions of the peripheral wall is small and the other is largely bifurcated. The smaller branch cylinder is formed in the dispensing cylinder 4, and the other larger branch cylinder is formed in the stored item filling cylinder 5 in the container.

  The shape of the container is different from the shape at the time of molding, the shape in which the stored item is filled in the container, and the shape in which the stored item in the container can be poured out.

  As shown in FIG. 2, the shape at the time of molding is such that the first concave groove 6 is provided on the lower outer side and the second concave groove 7 is provided on the upper side with an appropriate gap in the vertical direction on the upper outer surface of the dispensing cylinder 4. The cylindrical portion above the second groove is closed on the upper surface, and the central portion of the upper surface is high and the outer peripheral portion of the upper surface is a tapered head 8. As shown in FIG. 2, the both concave grooves are formed in a concave shape with respect to the outer surface of the cylindrical portion and in a convex shape with respect to the inner surface of the cylindrical portion. The first concave groove is preferably a V-shaped groove, and the bottom of the groove is preferably formed in a thin wire 9 that can be broken. The cylindrical portion above the first concave groove 6 forms a plug 10 as shown in FIG. 3, and the cylindrical portion between the two concave grooves is a gripping cylinder 11 of the plug. The lower outer diameter of the above-described tapered head 8 formed by the upper cylindrical portion than the second concave groove 7 is larger than the inner diameter of the first concave groove 6 as shown in FIG. The inner diameter of the second concave groove 7 is substantially equal to the outer diameter of the second concave groove 7.

  First and second finger-hanging projecting plates 12 and 13 for breaking the first groove 6 are projected from the outer surface of the extraction tube portion below the first groove 6 and the grip tube portion above the portion. Moreover, the extraction cylinder part below the first concave groove and the outer surface of the grip cylinder 11 are connected by an elastic string-like piece 14 having a plurality of wave shapes that are continuous when viewed from the side surface.

  When filling the container, for example, with a liquid, for example, the plate-shaped seal portion 15 is filled by injecting from the filling cylinder 5 with the upper end opening having the large diameter described above, and sandwiching the opening after the filling. . The clamping may be performed with a heated jig as in the case where the lower end of the tube container is closed, for example, and heat-welded.

  When pouring out the contents stored in the container, the first concave groove 6 of the above-described dispensing cylinder 4 is broken, and the stopper 10 formed by the upper cylindrical portion from the first concave groove 6 is poured below the first concave groove 6. What is necessary is just to inject | pour from the upper end opening of the extraction | pouring pipe | tube, inclining a container in this separation | separation state, cut | disconnecting from an extraction pipe | tube part. After pouring, the stopper 10 is turned upside down as shown in FIG. 3, and the tapered head 8 is elastically deformed into the opening 16 formed by the fracture of the first concave groove and forcedly pressed to seal it. As described above, the first concave groove 6 is formed in a concave shape with respect to the outer surface of the cylindrical portion and in a convex shape with respect to the inner surface of the cylindrical portion, so that it is broken at the intermediate portion in the vertical direction of the first concave groove. Thus, the opening portion formed by the lower half of the first concave groove forms an inward flange-like portion as shown in FIG. 3, so that the tapered head portion 8 is fitted into the upper end portion of the dispensing cylinder. When this is done, the inner end of the inward flange-like portion is fitted into the second concave groove 7 to prevent the plug 10 from being pulled out.

It is a side view of this invention container. FIG. 2 is an enlarged half sectional view of the main part of FIG. 1. FIG. 2 is a cross-sectional view showing a state in which the stopper formed by the upper part of the outlet cylinder in FIG. 2 is broken and separated, and the stopper is inverted and fitted into the outlet cylinder mouth formed at the upper end of the outlet cylinder after the stopper is removed. It is.

Explanation of symbols

3 peripheral wall 4 pouring cylinder 5 filling cylinder 6 first concave groove 7 second concave groove 8 head
10 stopper 11 gripper
12 1st finger hanging veneer 13 2nd finger hanging veneer
14 String-shaped piece 15 Seal part
16 opening

Claims (5)

A first concave groove 6 for breaking and a second concave groove 7 on the upper side are provided around the upper outer surface of the top-occluding pouring cylinder 4 standing up from the container body 1 with appropriate gaps, respectively.
The cylindrical portion above the second concave groove 7 is on the head 8, the cylindrical portion between the first and second concave grooves is on the gripping cylinder 11, and the head and the gripping cylinder are used as plugs 10 to form the first concave groove 6. The plug 10 can be separated by breaking,
The stopper is characterized in that the head 8 is forcibly pushed into the upper end of the dispensing cylinder 4 through the opening 16 formed by the above-described breakage, and the periphery of the opening is formed so as to be fitted into the second groove 7. , Synthetic resin thin-walled container. The synthetic resin thin-walled container according to claim 1, wherein the head portion 8 is a tapered head portion having a high center at the top surface and a low outer peripheral portion at the top surface. The first and second finger-hanging projecting plates 12 and 13 for breaking the first concave groove 6 are protruded from the outer surface of the extraction cylinder portion below the first concave groove 6 and the outer surface of the grip cylinder 11 above the portion. The thin-walled container made of a synthetic resin according to claim 1 or 2. The synthetic resin thin-walled container according to claim 1, 2, or 3, wherein the container body portion below the first concave groove 6 and the gripping cylinder 11 are integrally connected by a string-like piece 14. The container body 1 is bifurcated by bifurcating the upper part of the peripheral wall 3 rising from the outer periphery of the bottom plate, with one branch cylinder serving as the extraction cylinder 4 and the other branch cylinder serving as a filling cylinder 5 having an upper end opening. The synthetic resin thin-walled container according to claim 1, 2, 3 or 4.

Images