JPS6117001Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a spout device for paper containers such as milk cartons.

In recent years, paper containers have become extremely popular as an alternative to conventional glass containers, metal containers, and synthetic resin containers, and their contents have a wide range of uses, including milk, fruit juice, alcohol, soybean oil, and edible oil. The material for these paper containers is generally paperboard with plastic film layers on both the inside and outside surfaces.In the case of containers with particularly permeable contents, the inner plastic film layer is covered with aluminum foil. A structure in which layers are laminated, or a structure in which a plastic film layer is further laminated on this aluminum foil layer are used.

If these paper containers have a gable top, a part of the joint at the top can be peeled off to form a spout, or if they have a flat top, a part of the top can be peeled off. The spout is formed by cutting out the spout.

On the other hand, as an alternative to the above-mentioned spout, a method has been proposed in which a pouring tool configured separately from the paper container body is attached to the paper container to facilitate pouring. For example, in Japanese Utility Model Application Publication No. 55-110444, a sheet of paper with plastic films laminated on the top and bottom surfaces of a base paper in which a hole corresponding to the size of a pouring spout is formed in advance is used to create a sharp protrusion. Japanese Utility Model Application Publication No. 150728/1983 discloses a paper container in which an inner stopper cylinder can break through the film layer to form a pouring spout, and a paper container having an inner stopper that can break through the film layer to form a pouring spout, is disclosed in Japanese Utility Model Publication No. 55-150728. Furthermore, Japanese Utility Model Application Publication No. 55-115964 describes the construction of a pouring tool which uses an opening member having a conical top to break through a paper container to form a pouring spout.

However, all of the conventionally known pouring tools, including the pouring tools related to these proposals, form a spout by breaking through only the film layer or the base paper on which the film is laminated using an opening member. The film or base paper hung down inside the paper container or floated in the contents, sometimes blocking the spout. In addition, the pressure applied when the paper container is breached causes the cut end of the spout to bulge on the inner surface of the paper container, making it difficult to completely pour out the entire contents from the paper container.

The present invention provides a spout device that improves the above points. That is, the present invention has a cylindrical suspension that has a dogleg-shaped sharp cutting edge frame that extends from the tip of the support frame erected at one location on the bottom frame while tilting backward in two directions and continues to the bottom frame. By providing it inside the outlet so that it can move up and down,
A spout is provided by making a dogleg-shaped cut in the paper container, allowing the entire contents to be poured out.

The present invention will be described below based on embodiments shown in the drawings.

FIG. 1 is a perspective view showing a state in which a spout device according to the present invention is attached to a paper container 1. FIG. 2 is an exploded perspective view of the spout device. In the drawing, the cylindrical spout 3 has a flange 2 at one end that is closely fixed to the paper container 1, and a flange 3 on the inner wall surface that terminates near the flange. Book guide grooves 4a, 4b, 4c are provided. On the other hand, the suspension part 6 is constructed by integrating a triangle and an arc whose one side is a chord into a bottom frame 7.
A support frame 8 is set up vertically from the apex of the triangle that is not in contact with the arc, and this support frame 8
The tip and the remaining two vertices of the triangle are connected by a dog-shaped sharp cutting edge frame 9. Furthermore, outwardly directed protrusions 10a, 10b, 10c are provided at each vertex of the triangle of the bottom frame 7, and these protrusions are connected to guide grooves 4a, 4b, 4 on the inner wall surface of the spout.
Slide along c. Further, the cap 11 has an inner diameter that fits over the outer wall surface of the spout 3.

Therefore, after the flange 2 of the spout 3 is tightly fixed to the paper container 1, the guide grooves 4a, 4 on the inner wall surface of the spout
The protrusions 10a, 10b, 10 of the suspension part 6 are attached to b, 4c.
c and press down the bottom frame 7, the cutting edge frame 9 will gradually cut into the paper container 1 from the tip of the support frame 8, and the mounting part 6 will be connected to the protrusions 10a, 10.
b, 10c descend to the position where they abut the ends of the guide grooves 4a, 4b, 4c. The notch 5 provided in the cylinder of the spout 3 is for facilitating the pressing down operation. When the lowering of the frame 6 has stopped,
The paper container 1 is cut into a dogleg shape according to the shape of the cutting blade frame 9, and the cut end does not protrude inside the paper container. Therefore, in order to effectively use this cut, when attaching the spout device to the paper container, it is desirable that the support frame portion of the suspension section 6 points in the direction that indicates the bottom of the paper container 1. .

When the paper container 1 is cut into a dogleg shape, there is a space A surrounded by a portion corresponding to the chord of the arc in the bottom frame 7 and the cutting blade frame 9, a space A surrounded by the support frame 8, the bottom frame 7, and the cutting blade frame 9. The contents can be poured out through the two enclosed spaces B and C as well as the triangular space D of the bottom frame 7. Furthermore, as mentioned above, the cut end is not raised inside the paper container, so the contents can be poured out. You can pour it out without leaving anything behind. In addition, if the part of the bottom frame corresponding to the chord of the arc is made higher than the bottom frame, when this part is pushed into the paper container body,
Since the tongue piece of the paper container cut into a dogleg shape stands up perpendicularly to the plane of the paper container main body, there is no possibility that the tongue piece will block the space A. Further, the above-mentioned spaces A, B, C, and D refer to spaces generated from the basic frame configuration, and each space may be further partitioned by an additional frame.

FIG. 3 and FIG. 4 are both perspective views showing modified examples of the mounting portion 6 according to the present invention. As is clear from these modified examples, the present invention is based on the support frame 8.
The frame 9 is characterized by having a dog-shaped sharp cutting edge frame 9 connected to the bottom frame 7 while backwardly tilting in two directions from the tip of the frame 6, so that the shape of the bottom frame 7 is circular. , a polygonal shape, or a combination thereof. Furthermore,
The cutting edge frame 9 is formed in a dogleg shape along two straight lines or curves connecting the tip of the support frame 8 and two points on the bottom frame 7, and the two points on the bottom frame are shown in FIG. As shown, the tip of the protrusion 12 provided on the bottom frame may be used as long as the protrusion is lower than the support frame 8. When this projecting piece 12 is pushed into the paper container main body, it acts to make the tongue piece of the paper container cut into a dogleg shape stand up perpendicularly to the paper container main body.

Also, as shown in Fig. 4, if the four sides of the pentagon including the dogleg-shaped cutting edge frame are used as the cutting edge frame,
Paper containers can be cut into larger incisions.

The cylindrical spout 3 according to the present invention is not limited to a cylindrical shape, but may be a rectangular tube shape, and the shape of the cap 11 attached to the spout 3 is appropriately determined in consideration of the shape of the spout. Incidentally, when the spout 3 is formed into a rectangular tube shape, the guide grooves 4a, 4b, 4c and the protrusions 10a, 10b, 10c in FIG. 2 can be omitted. For example, if the inner wall surface of the spout 3 is made pentagonal, the pentagonal moving part 6 shown in FIG. 4 can be stably moved up and down inside the spout without any guide grooves or protrusions.

In order to facilitate the spout forming operation using the spout device according to the present invention, a half-shape is pre-inserted into the paper container 1 at the part where the tip of the support frame 8 or the entire cutting blade frame 9 cuts. It is effective to perform a cutting process.

As detailed above, the pouring spout device according to the present invention can form a pouring spout on a paper container with a simple operation, and since the cut end does not protrude inside the paper container, the entire contents can be poured out completely. There is an advantage that it can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a spout device according to the present invention attached to a paper container, Fig. 2 is an exploded perspective view showing a spout device according to an embodiment of the present invention, partially cut away; Figures 3 and 4 are perspective views of a suspension section according to another embodiment. 1... Paper container, 2... Flange, 3... Spout, 6... Rising part, 7... Bottom frame, 8...
Support frame, 9...cutting blade frame, 11...cap.

Claims (1)

[Scope of utility model registration request] In a spout device consisting of a cylindrical spout having a flange at one end that is tightly fixed to a paper container, a mounting part provided inside the spout so as to be movable up and down, and a cap attached to the spout. , a bottom frame that can slide on the inner wall of the spout, and a dog-shaped sharp cutting edge frame that extends from the tip of the support frame that stands at one location on the bottom frame while tilting backward in two directions and continuing to the bottom frame. A spout device for a paper container, characterized in that the mounting portion includes: