JP5505842B2 - Tube container - Google Patents

Description

The present invention relates to a tube container that dispenses contents using the squeeze property of a cylindrical body.

As described in Patent Document 1, for example, the container body of the tube container has an extruded tube body or a tube body on which a synthetic resin sheet is wound as a body portion, and a shoulder portion and one open end of the body portion are provided on the body portion. A method of attaching a head portion composed of a mouth tube portion by injection molding or compression molding, or molding a casing having a mouth tube portion erected via a shoulder at the upper end of a bottomed tubular body portion by blow molding. It is manufactured by a method in which the bottom is cut from the lower end of the part and the lower end of the body part is the open end.
In either case, after filling the contents from the open end opposite to the mouth tube, this open end is sealed by a heat seal method, an ultrasonic method, etc. to form a plate-like seal portion, which is combined with a cap and tube Used as a container product.

  FIG. 7 shows an example of a tube container main body. The container main body 101 is formed of a tube body made of extruded low-density polyethylene resin, and the shoulder portion 3 is formed at the upper opening end of the trunk portion 4. The head portion H including the mouth tube portion 2 is attached by injection molding, and the lower opening end is sealed by a heat seal method to form a plate-like seal portion 6.

  And this type of tube container forms the body of the container body flexibly so that it can be squeezed, and as a dispensing container using its squeeze properties, cream-like or gel-like cosmetics, dentifrice, liquid soap, Widely used in a wide range of products filled and stored with chemicals, and mayonnaise, dressings, sauces and other foods.

Here, in a product using this type of tube container, when the remaining amount of the content is low, the contents are collected at the top by handling the body in a flat shape from the bottom to the top each time it is used. It is necessary to squeeze out the contents afterwards, and there is a problem that it is unusable.
In addition, this type of tube container is usually stored in an inverted position with the upper end of the cap as the grounding part. However, if the remaining amount of the contents is reduced and the body is flattened by handling, the inverted position is maintained. There is also a problem that it is easy to collapse without being balanced.

In this regard, in Patent Document 1 and Patent Document 2, when the remaining amount of the contents is reduced, the contents of the lower half of the trunk are handled and moved to the upper half, and then the trunk is folded in half. The plate-like seal part located at the lower end of the part is fixed to the engagement protrusion formed on the upper end of the body part or the elastic clip plate arranged on the cap, so that the folded state is maintained. In addition, there is a description relating to a tube container that can maintain smooth pouring operability of the contents reduced by squeezing the body part folded in half.

JP 2003-54589 A Japanese Utility Model Publication No. 61-5742 JP 2002-160756 A

Here, the above-described tube container described in Patent Document 2 has a configuration in which a protrusion-like engagement portion capable of engaging and fixing the seal portion is provided at the upper end portion of the body portion, and this engagement portion is provided in a protruding manner. Therefore, a special process is necessary, and the appearance is uncomfortable.
In addition, the tube container described in Patent Document 3 has a configuration in which an elastic clip plate is disposed on the cap attached to the mouth tube portion, and requires a specially configured cap, which also has an appearance compared to a normal tube container. It is uncomfortable.

Accordingly, an object of the present invention is to create a configuration capable of fixing and holding a state in which the body portion is folded in two at a low cost without greatly changing the shape of a generally used tube container. An object of the present invention is to provide a tube container excellent in usability at a low cost.

Among the means for solving the above technical problems, the main configuration of the present invention is as follows.
A tube body made of a synthetic resin having a squeeze-deformable tubular body, a mouth tube standing upright at one open end of the body, and the other open end as a plate-shaped seal, In a tube container that has a cap-shaped cylindrical cap to be attached to the mouth tube portion, and in a portion from the cap to the upper end portion of the trunk portion, a cylindrical shrink film that exhibits a pill fur proof function is closely attached,
The shrink film has a perforation in the circumferential direction at a predetermined height and is divided into a cut portion and a remaining portion in the top and bottom, and a vertical perforation is formed in the cut portion in the vertical direction. Using the perforation and perimeter perforation, only the excision is excised.
Use the plate-like seal to form a hook piece,
The hook piece is hooked on the remaining portion of the shrink film so that the half-folded state of the body portion can be fixed and held.

According to the configuration of the tube container,
At the beginning of use of the tube container product filled with the contents, only the cut portion of the shrink film is cut using the vertical perforation and the perforation, and the remaining portion is used while remaining in the ring shape at the upper end of the trunk portion. To do.
When the remaining amount of the contents is reduced in the middle of use, handle the contents of the lower half of the torso and move it to the upper half, then fold the torso in half and position it at the lower end of the torso By hooking the hooking piece formed on the plate-like seal part to the remaining part of the shrink film, the folded state of the barrel part can be fixed and reduced by squeezing the folded part. The contents can be poured out smoothly.

Here, the remaining part of the shrink film covers the upper end of the body part in close contact, but the body part is made of a synthetic resin having flexibility that can be squeezed, and the shrink film is flexible and elastic. In combination with the fact that it is molded with a synthetic resin film and the hook piece formed on the seal part is also thin and flexible, the hook piece is hooked on the remaining part of the shrink film. The operation can be easily achieved.
Further, since the shrink film is formed of a flexible and elastic synthetic resin film as described above, the engagement state by the hooking to the remaining portion of the hooking piece is maintained in a stable state without rattling. And the inverted position of the container can be stably maintained.

Further, in the above configuration, the fixing and holding mechanism in the folded state of the body portion utilizes a shrink film and a seal portion that exhibit a pilfer proof function that is an essential member or part of the tube container product. This can be achieved without forming a special projection for fixing and holding a separate member, and can be implemented at low cost.
Moreover, since it is hardly different from the shape of a general tube container, it can be used without a sense of incongruity in appearance.

Another structure of the present invention is that, in the above main structure, the seal portion is punched to form a hook piece, and the hook piece is formed by a simple process by punching a thin plate-shaped seal portion. Can be easily formed.
Of course, the hook piece can be formed not only by punching but also by cutting or the like, and the hook piece can be punched at the same time when the seal portion is formed by heat welding.

The tube container of the present invention is a stage in which the remaining amount of the content is reduced by utilizing a shrink film and a plate-like seal portion that exhibit a pilfer proof function that is an essential member or part of the tube container product. In the two-folded state of the torso, it can be easily fixed and held without rattling,
It is possible to provide a tube container excellent in usability that can be used at a low cost and without an uncomfortable appearance.

It is a front view of the tube container of this invention. It is a top view of the tube container of FIG. It is a front view which shows the state which folded the trunk | drum of the tube container of FIG. It is a side view of the state of FIG. It is a front view which shows the other hooking method of the hook piece in FIG. It is a front view which shows the other example of a shape of a hook piece. It is a front view which shows the example of the conventional tube container.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below along the examples with reference to the drawings.
1 to 4 show an embodiment of a tube container according to the present invention. FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a view of FIG. FIG. 4 is a side view of the state shown in FIG. 3. FIG. 4 shows a state where the cap 11 is removed.

A container main body 1 of this tube container has a tapered cylindrical shoulder portion 3 and a mouth cylindrical portion 2 at one open end of a barrel portion 4 formed of a cylindrical tube body made of low density polyethylene (LDPE) resin by extrusion molding. Similarly, a head portion H made of LDPE resin is integrally formed in a welded shape by injection molding or compression molding (see FIG. 4).
Further, after filling the contents from the other open end, the open end is flattened by a heat welding method, an ultrasonic method or the like to form a plate-like seal portion 6 and hermetically sealed.

  A cap 11 made of polypropylene resin with a top is attached to the head portion H, and a cylindrical pilfer proof function is provided on the portion from the peripheral edge of the top wall of the cap 11 to the upper end of the body 4. A shrink film 12 made of polypropylene (PP) resin to be exhibited is externally attached in a close-contact manner to form a tube container product.

In the shrink film 12, a circumferential perforation Pp is provided in the circumferential direction at a position corresponding to a position immediately below the upper end of the body portion 4 of the container body 1. The shrink film 12 is vertically cut and cut away 12a and a remaining portion 12b. They are divided into
Further, a pair of vertical perforations Pv are formed in the vertical direction in a range from the peripheral portion of the top wall of the cap 11 to the peripheral perforation Pp in the excision portion 12a located at the upper side. Using 12t (see FIG. 2), first, in the direction of the white arrow in FIG. 1, the perforation is broken along the vertical perforation Pv and further along the peripheral perforation Pp, and only the excision 12a is excised. To do.
On the other hand, the remaining portion 12b is used in a state of remaining in a ring shape at the upper end portion of the body portion 4.

A plate-like seal portion 6 is punched at the lower end portion of the container main body 1, and a hook-like hooking piece 7 is disposed so as to protrude downward.
Here, in order to form the hooking piece 7, the seal portion 6 is previously formed to be longer than usual as indicated by a two-dot chain line in the drawing.
In addition, when the flat seal plate 6 is formed by a thermal welding method or an ultrasonic method, the hook piece 7 can be punched at the same time.

Next, a usage mode using the remaining portion 12b of the shrink film 12 and the hook piece 7 will be described with reference to FIGS.
When the remaining amount of the contents is reduced, as shown in FIG. 3 and FIG. 4, the contents of the lower half of the trunk 4 are handled and moved to the upper half, and this lower half is moved as shown in FIG. After flattening as indicated by the two-dot chain line, the body 4 is folded in half in the direction of the white arrow shown in FIG. 3 at the position Bp, and the hook piece 7 is the upper end of the remaining portion 12b of the shrink film 12 The half-folded state is fixed and held so as to be hooked to the top. And the content which became less by squeezing the trunk | drum 4 folded in half can be poured out smoothly.

  In addition, this type of tube container is usually stored in an inverted posture with the upper end surface of the cap as a grounding portion. Even if the remaining amount of the contents is reduced, the folded state of the body portion 4 is fixedly held. Thus, this inverted posture can be stably maintained.

In the example shown in FIG. 3, the hook piece 7 is inserted inward from the lower end of the remaining portion 12b, and the hook-shaped tip is hooked from the inner side to the outer side at the upper end of the remaining portion 12b.
Here, the remaining portion 12b externally closes the upper end portion of the body portion 4, but the body portion 4 is made of a synthetic resin having flexibility so as to be squeezable, and the shrink film 12 is flexible and elastic. The remaining portion of the hook piece 7 as described above is combined with the fact that the hook piece 7 formed in the synthetic resin film is thin and flexible. The hooking operation to 12b can be easily achieved.
As shown in FIG. 5, the hook-shaped tip can be hooked from the outside of the upper end of the remaining portion 12b to the inside.

  Further, since the shrink film 12 is formed of a flexible and elastic synthetic resin film as described above, the engagement state between the hooking piece 7 and the remaining portion 12 is stable so as not to be rattled. It can be held and the inverted posture during storage can be stably maintained.

As mentioned above, although the structure of this invention and its effect were demonstrated along the Example, embodiment of this invention is not limited to the said Example.
For example, in the above-described embodiment, the tube container main body is configured to use an LDPE resin tube body by extrusion molding. However, the tube body can be made of another synthetic resin in a category that can be squeezed and deformed. The body may be wound with a synthetic resin sheet, and an aluminum laminate sheet may be used as the synthetic resin sheet.
In this embodiment, a PP resin shrink film is used. However, other synthetic resin films having shrinkage properties such as polyethylene terephthalate resin can be used.

Further, the shape of the hooking piece 7 is not limited to the hook-like shape as shown in FIG. 1, and various types are considered in consideration of the appearance design, the moldability, the ease of the hooking operation, and the like. It can be a variation. FIG. 6 shows three variations of the shape of the hook piece 7.
(A) is an example in which a slit S is inserted into the seal portion 6 to form an inverted T-shaped hook piece 7; (b) is an example in which an inverted T-shaped hook piece 7 is formed by punching; c) is an example in which the inverted T-shaped hooking piece 7 is formed by punching and the hole 8 is formed through the product, and the product can be displayed in a suspended state using the hole 8.

As described above, the tube container of the present invention is excellent in usability that can be used by fixing and holding the body portion folded in a state where the remaining amount of the content liquid is small, Use in a wide range of applications as a tube container is expected.

DESCRIPTION OF SYMBOLS 1,101; Container body 2; Mouth part 3; Shoulder part 4; Trunk part 6; Seal part 7; Hook piece 8; Hole 11; Cap 12; Shrink film 12a; Bp; position H; head portion Pv; longitudinal perforation Pp; circumferential perforation S; slit

Claims (2)

It has a cylindrical body (4) that can be squeezed and deformed, and a mouth cylinder is erected at one open end of the body (4), and the other open end is formed as a plate-shaped seal (6). A synthetic resin tube container body (1), and a cap-shaped cylindrical cap (11) to be attached to the mouth tube part (2), from the cap (11) to the upper end of the trunk part (4) In a tube container in which a shrink film (12) that exhibits a pill fur-proof function is tightly packaged in a part between and in a closed state, the shrink film (12) is circumferentially perforated at a predetermined height position in the circumferential direction. Circumferentially (Pp) is vertically divided into a cut portion (12a) and a remaining portion (12b), and the cut portion (12a) is formed with vertical perforations (Pv) in the vertical direction, Using the vertical perforation (Pv) and the perimeter perforation (Pp), it is configured to cut only the cut portion (12a), and the hook-like piece (7) is formed using the plate-like seal portion (6). And the hook piece (7) A tube container characterized by being configured to be able to be fixedly held in a folded state of the trunk portion (4) by being hooked on the remaining portion (12b) of the shrink film (12). The tube container according to claim 1, wherein the sealing piece (6) is punched to form a hook piece (7).

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