JP2565464Y2 - Liquid paper container with spout - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid paper container with a spout for storing juice, alcohol and the like.

[0002]

2. Description of the Related Art Conventionally, in this type of liquid paper container,
There is a container body in which an opening for liquid pouring is covered with a film material, a spout with a cap attached externally, and the spout has a substantially cylindrical shape attached to the container body side. The plug has a structure comprising a plug and an inner plug provided in the plug with an opening blade for breaking the film material. When opening, the inner plug is lowered (pressed down, or the cap is closed). The opening was to be opened (there was one that descended with rotation) (Japanese Utility Model Publication No. 58-37828, Japanese Utility Model Application Publication No. 64-912).
No. 8). As shown in FIG. 5, the inner plug 1 is formed in a substantially cylindrical shape, and a plurality of opening blades 3 are arranged integrally below the outer peripheral portion 2. Reference numeral 4 denotes a content hole, and reference numeral 5 denotes a flow hole through which air passes.

[0003]

By the way, when attaching a window to the opening of the container body using a film, the inside and outside of the container are taken into consideration in consideration of the selection of the resin on the inner layer side of the container body and the attachment property of the spout (plug). From the film material is stuck. As shown in FIG. 6, as shown in FIG. 6, the opening b of the container body a is covered with the back window film material c from the inner side, and an intermediate portion along the outer periphery of the opening from the outer side of the container body a. Film material d
, A ring-shaped front window film material e having a through hole smaller in diameter than the opening is attached, and the front window film material e is attached from the intermediate film material d to the back window film material c. Was.

The above-mentioned spout is attached to the opening portion covered in this manner . When the inner plug shown in FIG. 5 is lowered and opened, the opening blade of the inner plug is attached to the back window film material c.
As shown in FIG. 7, there is a problem that a gap is easily formed between the back window film material c and the front window film e at the broken portion A because the fracture occurs along the bonding portion between the front window film material e and the front window film material e. , The contents adhered at the time of pouring from the gap are opened b
May have permeated into the inner periphery. In order to solve this problem, the diameter of the entire spout and inner plug should be reduced so that the opening blade does not hit the bonding portion between the back window film c and the front window film e. In addition, it is necessary to change the dimensions of all the molds of the spout, the inner plug, and the cap and the spout cannot be used for general purposes.

[0005] In view of the above circumstances, the present invention provides a gap between the rear window film material and the front window film material at the above-mentioned broken portion upon opening without changing the dimensions of the mold of the cap or the inner plug. The challenge is to avoid
It is an object to ensure that the inner peripheral edge of the opening is properly protected even after opening.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is assumed that a liquid discharging opening of a container body is covered with a back window film material from an inner side of the container body.
A ring-shaped front window having a through hole from the outside of the container body
In a liquid paper container, which is covered by laminating with a film material and has a spout provided with an inner plug for breaking the back window film material and opening an opening, a plurality of the inner plugs are provided at a lower portion of the liquid paper container. of comprising a tear edge, a distal end of the opening edge are aligned along the axial center around which is biased inside plug axis center side from the outer peripheral portion in said plug, inside the periphery of the through hole of the table window film material
A liquid paper container with a spout is provided to solve the above-mentioned problem.

[0007]

In the present invention, the tip of the opening blade of the inner plug is located inside the outer periphery of the through hole of the front window film material on the center axis side of the inner plug, and when the inner plug is lowered, the back window film material and the front window are removed. The opening blade does not come into contact with the vicinity of the portion to be bonded to the film, so that the opening blade does not directly break, the bonded portion is pulled and peeled, and no pinhole is generated.

[0008]

Will be described in detail with reference [Example] Next, the present invention from Figure 1 in an embodiment shown in FIG. The container body and the spout are the same as those in the related art, and the description thereof will be omitted. FIG. 1 shows a first embodiment according to the present invention.
The tip of the opening blade 3 is located on the side of the inner shaft 6 from the outer peripheral portion 2 so as not to correspond to the bonded portion of the back window film material and the front window film material, and is located inside the outer periphery of the through hole of the front window film material.
It is biased so as to correspond to the side and is provided integrally with the outer peripheral portion 2 in a state of being arranged along the center axis 6 of the inner plug.

FIG. 2 shows a second embodiment in which an opening blade 3 is integrally provided below the outer peripheral portion 2 and the diameter of the lower portion of the outer peripheral portion 2 is reduced. the tip its <br/> respectively of opening blade 3 by reducing the diameter of the outer peripheral portion 2 is obtained by so as not to correspond to the bonding portion between Rear Window film material and Omotemado film material.

FIGS. 3 and 4 show a third embodiment.
In this embodiment, a stay 7 is provided which is inclined downward from the lower portion of the outer peripheral portion 2 toward the inner plug central axis 6, and these are integrated at the inner plug central axis 6. The unsealing blade 3 is provided integrally on the inner plug center shaft 6 side between the three stays.

[0011]

[Effects of the Invention] As described above, according to the present invention,
Opening hole for liquid in the container body is a back window from the inside of the container body
Covered with film material and transparent from the outside of the container body
Lamination with a ring-shaped front window film material with holes
A spout provided with an inner plug for opening the opening by breaking the back window film material, which is covered with a liquid paper container attached to the container body, wherein the inner plug has a plurality of opening blades at a lower portion, The front ends of the opening blades are arranged around the center of the inner plug, which is offset from the outer peripheral portion of the inner plug toward the center of the inner plug shaft.
It is characterized in that it is located inside the outer periphery of the through hole of the lum material . As described above, the tip of the opening blade of the inner plug is arranged along the center axis of the inner plug toward the center axis side of the inner plug, and is located inside the outer periphery of the through-hole of the front window film material. When opening the liquid pouring opening covered by bonding the material and the front window film material, the opening blade does not contact the bonded portion of the film material without exerting force. Therefore, no gap is formed in the bonded portion. In addition, since the opening blade does not protrude outward from the lower portion of the outer peripheral portion toward the center axis side of the inner plug, the opening blade is less likely to be damaged, and the danger of handling the inner plug itself alone. Thus, the present invention has an effect that is excellent in practicability, for example, the performance is reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of a liquid paper container with a spout according to the present invention.

FIG. 2 is an explanatory view showing a second embodiment in cross section.

FIG. 3 is an explanatory view showing a cross section of a third embodiment.

FIG. 4 is an explanatory diagram showing a bottom surface of a third embodiment.

FIG. 5 is an explanatory view showing a conventional example in cross section.

FIG. 6 is an explanatory view showing an opening for liquid ejection covered by a film material.

FIG. 7 is an explanatory view showing an opened state of a liquid discharge opening.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Inner plug 2 ... Outer peripheral part 3 ... Opening blade 6 ... Inner plug center axis b ... Opening c ... Back window film material e ... Front window film material

Claims (1)

(57) [Scope of request for utility model registration] An opening for discharging liquid in a container body is formed in the container body.
Side is covered with a back window film material and
Pasted with a ring-shaped front window film material with a hole from the outside
In a liquid paper container, which is covered by bonding together and has a spout provided with an inner plug for breaking the back window film material and opening the opening, the inner plug is provided with a plurality of opening blades at a lower portion. Wherein the tip of the opening blade is arranged along the center of the axis deviated from the outer peripheral portion of the inner plug toward the center of the inner plug shaft , and the outer periphery of the through-hole of the front window film material is provided.
A liquid paper container with a spout, which is located further inside .