JPS6147390A - Spout fixture for carton - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial field of application, prior art: Cartons (cabins) are used for liquid beverages, especially not only milk.
rton) is now common. At the top of this carton, the four sides meet, the two opposite sides are raised to create a central lip, and the remaining two sides are placed under the two previous sides. Folded and folded back again, the central lip actually adds four parts of the thickness of the carton.

Such punctures are sold in Australia under the trademark "Tetrapak J" and are known as gable top cartons.

The carton is opened and the contents poured by tearing the pre-glued edges on one side of the central lip.

It takes some manual dexterity and finger strength to do this, and it turns out it's impossible to have that kind of dexterity or to have that kind of finger strength. There are people in society, such as the elderly, the physically disabled, and children.

OBJECT OF THE INVENTION: It is the intention of the invention that a carton of the type described above be made such that the contents can be poured easily even without great manual dexterity or finger strength. The purpose is to provide equipment.

It is a further object of the present invention to provide a carton for dispensing the contents of a carton which is economical to manufacture and which provides an effective seal in the top insert of the carton to prevent liquid from escaping except through the pouring tube. The purpose is to provide equipment.

Structure of the Invention: The present invention relates to a carton spout fitting that pierces the top of a "gable top" type cardboard carton, thereby allowing the liquid contents to be poured from the carton, comprising: The fixture includes two downwardly extending legs each positioned to engage each of two opposite sides of a cardboard carton, a cross portion extending between the legs, and a cross portion extending between the legs. two downwardly extending tubes supported, the first of said tubes being closest to the first of said legs and the second of said tubes being positioned closest to said first of said legs. , each of said tubes having a lowermost end with a pointed shape capable of piercing the top of a carton of the type described above when pressed, and a leg relates to spout fittings for cartons, each characterized in that they are located opposite each other on the sides of the carton so that the sides do not bulge during the pressure of pushing the tube through the top of the carton. I can say that.

Preferably, the first of the tubes is adapted to be a pouring tube, the lowermost end being tapered on the side of the wall of the tube proximate the nearest leg.

Preferably, the pouring tube has an outwardly extending tongue at the top and at the interior location furthest from the proximal leg.

Preferably, the tongue is adapted to engage against the lower end of the central lip of the pierced carton to maintain the fixture tightened.

Preferably, the lower edge of the pouring tube is pointed.

Preferably, the cross section has a shape that includes a central U-shape surrounding the central lip of the carton.

Preferably, the lower part of the pouring tube has an outer wall that is U-shaped in cross-section and has a U-shaped opening furthest from the adjacent leg, and the shape of the wall is It is formed such that the cross-sectional area increases when measured upward from the lowest end to the cross section connection.

Preferably, the degree of taper created by such an increase in cross-sectional dimension is such that it provides an included angle of approximately 30° between the opposing outer surfaces.

Preferably, the legs are coupled with a cross section such that they can be pushed elastically away from the lower ends of the legs and with respect to each other, and preferably this also causes the carton to be pushed through when being pierced. To the extent of approximately one kilogram of pressure against the sides.

Embodiments: Further features of the present invention will be explained in detail below based on the drawings.

In the figure, the item is made of injection molded plastic suitable for food use and is made of styrene acrylonitrile (S
, A, N) were chosen to provide both elastic interconnection of parts and food quality control.

The fixture 1 thus has two downwardly extending legs, each positioned on opposite sides of the carton 4. The carton is also of the gable top type mentioned above.

The carton 4 has two oppositely located sides 5 and 6 which are bent inwards and then bent back outwards at 7.8 on one side before forming the remaining two sides. Together with opposite sides 9 and 10, the sides 9, 10 are slopingly raised and normally connected to form a central lip 11.

The central lip 11 thus has a thickness of four sheets of paperboard, two of which extend half the length from the end 12 to the central position of the lip 11.

In the conventional opening method, at one end, such as the end 12 of the central lip 11, the four pieces of cardboard are
It is necessary to bend the wings in such a way that the two on the other side are pulled apart and then the sides 5 are bent back into the open mouth.

The carton spout fitting 1 requires no such operation, only the insertion of the fitting 1 from above as shown in FIG.
Legs 2 and 3, which are narrower than the distance between legs 4, are expanded by elastic force due to their shape and material characteristics, and
It is expanded to include a cross section 15 having a section 16 forming a U-shaped gap surrounding the central lip 11.

There are two tubes 17 and 18, the first of these 17 being a pouring tube and the second 18 being a breather tube.

The pouring tube is located on one side of the cross section in such a position that it is closest to the close leg 2, and the breather tube 18 is in a position that is closest to the close leg 3.

In detail, the pouring tube 17 has a pointed lowermost end 19 which is on one side of the tube wall closest to the close leg 2 and which is located on the lower side of the cross section 15 of the pouring tube 17. The cross-sectional shape is U-shaped with an open end located farthest from the close leg 2.

As clearly shown in FIG. 7, the outermost edge of each side of the U-shape is pointed;
21. This removes the tab 22 from the top side 10 of the carton when the tube 17 is inserted through the carton.
This is so that it has a helpful effect on cutting.

The tongue 23 is located between the U-shaped pointed ends of the lower end of the tube 17, and there is a gap between the pointed ends 20 and 21 and the tongue 23, respectively. The tongue projects from the straight line 24, as shown at 25, to effectively force the tab 22 out of sealing engagement.

Furthermore, the shape of the tongue 23 as well as its position is such that the pressure of the tongue at 25 against the tab 22 and also the pressure of the tongue against the four layers of the central lip 11 is such that the pressure of the tongue at 25 against the tab 22 and also against the pressure of the four layers of the central lip 11 is such that the pressure of the tongue at 25 against the tab 22 and also against the pressure of the four layers of the central lip 11 is such that the pressure of the tongue at 25 against the tab 22 and also against the pressure of the four layers of the central lip 11 is such that It is designed to provide an interlocking engagement effect that helps retain the fixture.

The breather tube 18 has a pointed lowermost end at the position 26 of the wall furthest from the close leg 3, and the shape of the lowermost end is tapered and the cross-sectional area increases upwardly. increases, the cross-sectional shape reaches a maximum at point 27, and remains a constant diameter cross-sectional shape for the remainder of the length of the tube, until it reaches the cross section 15.

There is a relationship between the location of the lowest end 19 of the pouring tube 17 and the location of the lowest end 26 of the breather tube 18 with the corresponding lowest ends 28 and 29 of the legs 2 and 3, in particular the fourth During a downward pushing motion, the leg portion 29 pushes against the side of the carton 13 with a force of approximately 1 kg as the end portion 26 begins to be pushed into the side portion 9, as shown by the dotted line 30 showing the outline of the carton in the figure. The similarly pointed end 19 is adapted to fit into the top side 10 as the end 28 tightens against the side 14.

In this way, piercing can be achieved very effectively by the end of each tube without the carton material becoming combed.

The sides forming the outer surface of the lower part of the pouring tube 17 are particularly tapered, as shown in FIG.
The angular relationship between the two sides is approximately 30°.

Depending on the thickness of the carton wall dimensions, the sharpness achieved on the edges and bottom of each tube, and the surface finish of the outer walls of the tubes to achieve the desired and adequate sealing,
Some practice is required to obtain the basic taper angle.

In use, the fixture 1 is first placed in the position shown in FIG. Then, with both hands, at least one finger under each end of the central lip 11 and both thumbs centered on the fitting 1, push the fitting downward and screw it in. This causes the legs to spread out and straddle the outside of each side.

Then, with successive tightening operations by such manual insertion, the respective tubes 17 and 18 pass through the top sides 9 and 10, and the fitting 1
It must be inserted with enough pressure to reach the position shown in FIG.

To be used for pouring, the configurations in FIGS. 2 and 4 show a carton with pouring fittings. Then, simply tilt the side of the carton with the pouring tube at the bottom. Air enters the top level of the carton through the breather tube and expels liquid in its place.

As the contents of the carton decrease, the carton is tilted further, and finally the carton is turned completely upside down until the very little remaining liquid is removed from the tab 22.
, through the gap between the tongue 23 and the edge 20 or 21 of the pouring tube 17.

As described above, the present invention has important improvements.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a carton spout fitting in accordance with a preferred embodiment of the present invention; FIG. 2 is a gable top view showing in dotted lines several tube sections and tongues depending from the carton; FIG. 3 is a side elevation view of the same embodiment as FIG. 1, viewed from the side in the pouring position in the carton; FIG. and a perspective view of the same embodiment as that of FIG. 2; FIG. 4 is a sectional view of the same embodiment as that of FIGS. 1, 2, and 3; FIG. 5 is a perspective view of the carton pouring fixture in the initial position just about to be installed from the top of the gable top type carton shown in perspective view; FIG. The figures are a sectional view taken along line 6-6 in FIG. 4, and FIG. 7 is a sectional view taken along line 7-7 shown in FIG. 4. DESCRIPTION OF SYMBOLS 1... Spout fitting, 2.3... Leg, 4... Carton, 5.6... Side part, 9.10... Side part, 11
... central lip, 12... end, 13.14...
Side part, 15... Cross part, 16... U-shaped part, F... Pour pipe, 18... Breathing pipe, 19... Lowermost end, 2o, 21... Pipe edge, 22...Tab, 23
...tongue.

Claims (1)

[Claims] 1. A spout fitting for a carton that pierces the top of a cardboard carton of the "gable top" type, thereby making it possible to pour the contents from the carton, which two downwardly extending legs each positioned to respectively engage each of the two opposite sides, a cross portion extending between the outer legs, and two downwardly extending tubes supported with respect to the cross portions. and a first tube of said tubes is located closest to a first leg of said legs and a second tube of said tubes is located closest to a second leg of said legs. each of said tubes having a lowermost end having a pointed shape capable of piercing the top of a carton of the type described above when pressed;
characterized in that the legs are located opposite each other on the sides of the carton so that the respective sides do not bulge during the pressure applied to pierce the tube into the top of the carton;
Carton spout fitting. 2. The first of the tubes is provided to serve as a pouring tube, and the lowermost end thereof is characterized in that the side wall of the tube closest to the leg closest to it has a pointed shape. , a spout fitting for a carton according to claim 1. 3. A carton pourer according to claim 2, further characterized in that the pouring tube has an outwardly extending tongue at the upper and inner position furthest from the adjacent leg. Mouth fitting. 4. The tongue-shaped piece is adapted to engage with the lower end of the central lip of the pierced carton to maintain the fastening of the fitting. Carton spout fittings as described in section. 5. Any one of claims 2 to 4, characterized in that the lower edge of the pouring pipe is pointed.
Carton spout fittings as described in section. 6. Claims 1 to 5, characterized in that the cross portion has a shape that encompasses a central U-shape that surrounds the central lip of the "gable top" of the carton.
The carton spout fitting described in any one of the following paragraphs. 7. The lower part of the pouring tube has an outer wall that is U-shaped in cross-section with a U-shaped opening furthest from the adjacent leg, and the shape of the wall is such that the lowermost end Any one of claims 2 to 5, characterized in that the area of the cross section increases as measured upward from the point where the cross portions connect. Carton spout fittings as described in . 8. The degree of taper created by the increase in cross-sectional dimension is such that an included angle of approximately 30° is created between the opposing outer surfaces. Carton spout fitting. 9. Any one of claims 1 to 8, characterized in that the legs are connected to each other so that their lower ends can be elastically pushed away. Carton spout fittings as described in . 10. The patent further characterized in that the legs are connected and arranged to exert approximately one kilogram of pressure on each side of the carton during the piercing operation starting from the tube. A spout fitting for a carton according to claim 9. 11. A breather tube is provided through the ``gable top'' carton approximately in the center of one side of the ``gable top,'' and another tube, which is a pouring tube, is provided in the center lip of the top of the carton. Claims 1 to 10 further characterized in that the gable top is provided adjacently through the top portion on the other side of the gable top.
The carton spout fitting described in any one of the following paragraphs. 12. The spout is made of injection molded styrene acrylonitrile (
S. A. N. ) A spout fitting for a carton according to any one of claims 1 to 11, characterized in that the spout fitting comprises: