JPH08104316A - Container made of paper tube and its manufacture - Google Patents

Abstract

PURPOSE: To provide a container made of paper tube wherein an air- -tightness is favorable, and a lid body made of paper tube can be assuredly fitted, and the manufacturing method for the container made of paper tube by a method wherein on a container body made of paper tube, a protruding strap part which is fitted in and fastened with a lid body made of paper tube, or a recessed groove for a packing member is formed, and a packing member such as a rubber tube, etc., is fitted in the recessed groove. CONSTITUTION: For a container made of paper tube, a lid body 2 made of paper tube is detachably fitted on the opening of a container body 1 made of paper tube. For such a container made of paper tube, on the peripheral wall on the opening side of the container body 1 made of paper tube, an endless form protruding strap part 3 or a partial protruding line is formed. Also, for a manufacturing method of a container made of paper tube wherein the lid body 2 made of paper tube is detachably fitted on the opening of container body 1 made of paper tube which is made using a paper tube, a struck form protruding strap part is formed by making a rotating roll with a protruding strap on the internal side of the container cylinder made of a paper tube, constituting a container body, and a pair of protruding strap-forming rolls which have a circular truncated cone shape and are diagonally confronted with each other on the external side of the container cylinder, correspond with each other, and rotating respective rolls.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper tube-made container, and is provided with a ridge-lined portion for fitting and locking a paper-tube-made lid body or a groove for packing material. The present invention relates to a paper tube container in which the airtightness is made good and the paper tube lid body is surely fitted by fitting the packing material, and a method for manufacturing the paper tube container.

[0002]

2. Description of the Related Art Conventionally, a paper tube container used for packaging foods and the like has a cylindrical body obtained by cutting a long cylindrical paper tube into a predetermined size. After the interior of the Inro cylinder that is longer than the cylindrical body with a diameter that fits in, the bottom plate is attached to the other opening to form a paper tube container, and a cylindrical paper tube is created on the Inro cylinder that projects from this paper tube container. The paper tube lid is detachably fitted, or a bottom plate is attached to a cylindrical body obtained by cutting into a predetermined size to form a paper tube container, and the opening of the tube tube has a diameter smaller than that of the container. This was due to the structure in which a lid body made of a large cylindrical paper tube was removably fitted.

However, the former paper tube container has a double structure in which a seal barrel having a different structure is internally mounted and a lid is fitted to the seal barrel when the container is manufactured. It is not suitable for packaging foods that are difficult to manufacture at low cost, and that the fitting state of the paper tube lid does not provide a highly airtight fit, and that does not like moisture. there were. Further, in the latter paper tube-made container, the paper tube-made lid body is not in a fitting state with airtightness similarly to the above, and the lid body rotates freely during transportation or when lifted, There was also a problem that the lid could not be obtained, and it was not possible to obtain a reliable lid.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art. The object of the present invention is to provide a ridged string on the peripheral wall on the opening side of the paper tube container. Part is formed, and another protrusion for locking is formed on the upper side of the ridge-lined part, or a concave line is formed on the upper side of the ridge-lined part, and a paper tube is formed in the concave line. By fitting a packing material for preventing the lid from falling out and preventing free rotation, it is excellent in airtightness, can be manufactured easily at low cost, and can easily form a partition container. The provision of a manufacturing method.

[0005]

[Means for Solving the Problems] A means for a paper tube container according to the present invention for achieving the above object is a paper in which a paper tube lid is removably fitted into an opening of a paper tube container. In the tube-made container, there is formed a ridge-lined portion formed on the peripheral wall on the opening side of the paper tube container. Further, according to the present invention, another locking ridge is formed on the upper side of the ridge-lined portion in the paper tube container, and a recessed ridge that engages with the locking ridge is formed on the peripheral wall of the paper tube lid. In the case of forming a groove, in the case of forming a recessed line portion on the upper side of the protruding line extending portion, and when fitting a packing material for preventing the paper tube lid body from falling out and preventing free rotation, In a paper tube container in which a paper tube lid is removably fitted in an opening of the paper tube container, a peripheral wall on the opening side of the paper tube container is formed with a ridge protruding toward the inside of the container. When the packing material for preventing the paper tube lid from falling out and preventing free rotation is fitted in the groove formed by the ridge, and when the partition plate is fitted to the formed ridge string part, In some cases, the body is divided into a plurality of compartments to form a plurality of accommodating portions.

Further, the method of manufacturing a paper tube container according to the present invention is a method of manufacturing a paper tube container in which a paper tube lid is removably fitted into an opening of a paper tube container obtained by using the paper tube. In the manufacturing method, a rotary roll with a projection is formed on the inside of a container tube made of a paper tube constituting the container, and a pair of projection-forming rolls having a truncated cone shape on the outside and diagonally opposed are provided. The rolls are rotated to form a projecting strip-shaped stringing portion.

[0007]

When the paper tube container of the present invention is used, the paper tube lid fitted in the opening of the paper tube container is removed to accommodate the food or other contents in the container. After that, the lid is fitted into the opening of the paper tube container. At this time, the lower end of the lid body is stopped at the ridge-lined portion formed on the peripheral wall of the paper tube container. Further, in the case where the paper tube container is provided with a locking ridge and the lid side is provided with a groove groove for engaging with the ridge, when the lid body is fitted, the groove groove of the lid body is used for the locking. Fit in a ridge,
The lid is locked to prevent the paper tube lid from coming off. Further, in the case where the packing material is fitted in the formed recessed portion, the fitted lid body is kept in close contact by the packing material such as rubber band, and the paper tube lid body is prevented from coming off and free rotation. At the same time, airtightness is maintained. Furthermore, the one in which the partition plate is fitted to the formed ridge-lined portion allows the interior of the paper tube container to be partitioned into a plurality of compartments to accommodate different contents.

Further, in the production of the paper tube container according to the present invention, a long paper tube is cut into a certain size, and a rotary roll with a ridge is formed on the inside of the container tube and a truncated cone is formed on the outside. After forming an endless ridge-lined portion by associating a pair of diagonally-formed ridge forming rolls, edge-wind the lower end of this container and lock the bottom plate to this edge-winding portion. After forming the paper tube container, a long paper tube having a diameter slightly larger than the diameter of the paper tube container is cut into a certain size to form an edge winding part on one opening, and the edge winding part is provided with a ceiling. A lid made of a paper tube formed by stopping a plate is removably fitted.

[0009]

EXAMPLE An example of a paper tube container according to the present invention will now be described with reference to the drawings. In FIG. 1, a part of the paper tube container having a projecting string portion formed on the peripheral wall of the container is vertically cut. Show things,
FIGS. 2 to 4 are front views in which a part of the other embodiment of the paper tube-made container is longitudinally cut, and FIGS. 5 to 8 show the manufacturing method of the present invention. Paper tube container 1
And a lid 2 made of a paper tube which can be removably fitted in the opening of the paper tube container 1, and a ridged string portion 3 formed on a peripheral wall of the paper tube container 1 on the opening side. As the paper tube container 1, a long paper tube having a predetermined diameter is cut into a predetermined size, and the lower end of the container tube 1'is edge-wound and the bottom plate 5 is locked to the edge winding portion 4. To form a body.

Next, in the paper tube lid 2, a long paper tube having a diameter slightly larger than the diameter of the paper tube container 1 is cut into a certain size, and an edge winding portion 6 is formed in one opening, The top plate 7 is fixed to the edge winding portion 6 to form a fitting lid, and the fitting lid is removably fitted to the opening side of the paper tube container 1.

Further, in the method for manufacturing a paper tube container according to the present invention, the ridged stringing portion 3 formed on the peripheral wall of the opening portion of the paper tube container 1 is made of paper as shown in FIGS. When the tube container 1 is formed, a pair of ridges are formed in which a rotary roll 9 with a ridge 8 is provided inside a container tube made of a paper tube which constitutes the container, and a conical trapezoid is provided outside and obliquely opposed to each other. The rolls 10, 10 are made to correspond to each other, and the rolls 9, 10 and 10 are rotated to form the endless ridge-lined portion 3.

As described above, the paper tube container according to this embodiment has the paper tube lid 2 which is fitted into the opening of the paper tube container 1 in use.
The container 2 is removed and the contents such as foods are accommodated in the container 1 as it is. After the contents are accommodated in a predetermined manner, the lid 2 is fitted into the opening of the paper tube container 1. At this time, the lower end of the lid body 2 stops at the ridge-lined portion 3 formed on the peripheral wall of the paper tube container 1, so that the lid body 2 fits well.

Another embodiment of the paper tube container according to the present invention is shown in FIG. 2. The paper tube container 1 according to this embodiment is a paper tube container 1.
Another locking protrusion 11 is formed on the upper side of the protrusion string portion 3a in a, and a groove groove 12 that engages with the locking protrusion 11 is formed on the peripheral wall of the paper tube lid body 2a. I did it,
As the paper tube container 1a, a long paper tube having a predetermined diameter and cut into a predetermined size is used, and the lower end of the container tube is edge-wound and the bottom plate 5a is locked to the edge winding portion 4a. To form. Further, the paper tube lid 2a is formed by cutting a long paper tube having a diameter slightly larger than the diameter of the paper tube container 1a into a certain size to form an edge winding portion 6a at one opening. Top plate 7a on part 6a
Is stopped to form a fitting lid, which is removably fitted to the opening side of the paper tube container 1a. Furthermore, the protrusion strip portion 3a formed on the peripheral wall of the opening of the paper tube container 1a, the locking protrusion 11 and the recess groove 12 of the lid 2a are provided with protrusions as in the above embodiment. It is formed by using a rotating roll of No. 3 and a pair of protrusion forming rolls each having a truncated cone shape and diagonally opposed to each other. The ridge 11 and the groove 12 are formed.

As described above, in the paper tube container according to this embodiment, when the paper tube container 2a is fitted into the paper tube container 1a and the paper tube lid 2a is fitted, the groove 12 of the lid 2a has the locking projection 11a. And the lid 2a is locked to fit into the container 1a of the paper tube lid 2a.
It is prevented from falling off.

Further, another embodiment of the present invention will be described with reference to FIG. 3. In the paper tube container according to this embodiment, a concave strip portion 13 is formed on the upper side of the projecting strip portion 3a. Article 13
In the figure, a packing material 14 for preventing the falling of the paper tube lid 2b and preventing free rotation is fitted, and the paper tube container 1b is obtained by cutting a long paper tube into a certain size in the same manner as described above. The container is used and the lower end of the container is edge-wound, and the bottom plate 5b is locked to the edge-wound portion 4b to form the container. Also, the paper tube lid 2b
Cuts a long paper tube having a diameter slightly larger than the diameter of the paper tube container 1b into a certain size and forms an edge winding portion 6b at one opening, and fixes the top plate 7b to the edge winding portion 6b. To form a fitting lid, and the fitting lid is removably fitted into the opening side of the paper tube container 1b.

Furthermore, the ridge-lined portion 3b formed on the peripheral wall of the opening of the paper tube body 1b and the concave portion 13 have a rotary roll with a ridge and a frustoconical shape as in the above-described embodiment. It is formed by using a pair of ridge forming rolls which are not provided and are diagonally opposed to each other, and each roll is rotated to form an endless ridge-lined portion 3b and a concave ridge portion 13. Article 1
3 is fitted with a packing material 14 made of rubber band.

As described above, when the paper tube container according to this embodiment is used, when the paper tube lid body 2b is fitted to the paper tube container body 1b, the lid body is made of the packing material 14 made of rubber band fitted to the container body 1b. The close contact is maintained, the paper tube lid 2b is prevented from falling off and the idle rotation is prevented, and the airtightness is also maintained. Incidentally, in this embodiment, there is a case where only the recessed line portion 13 is formed on the container 1b side and the packing material 14 made of a rubber band is fitted into the recessed line portion 13 without forming the protruding line string portion 3b.

Further, according to the present invention, as shown in FIG. 4, a ridge-lined portion 3c is formed, and the partition plate 1 is formed on the ridge-lined portion 3c.
5 may be fitted to divide the paper tube container 1c into a plurality of parts to separately store different foods, etc. Further, although not shown in the drawing, an oblique partial ridge is formed. In some cases, a screw action is applied to this to stop the paper tube lid.

[0017]

As described above, in the paper tube container and the method for manufacturing the paper tube container according to the present invention, a paper tube in which the paper tube lid is removably fitted in the opening of the paper tube container. In the container made,
The peripheral wall on the opening side of the paper tube container has a structure in which an endless stringing part or a partial ridge is formed.
In addition, in the method of manufacturing the paper tube container, in the above-mentioned configuration, a rotary roll with a ridge is provided on the inner side of the container tube made of the paper tube which constitutes the container, and a frustoconical shape is provided on the outer side, and the container is diagonally opposed. This is characterized by the fact that a pair of projected ridge forming rolls are made to correspond to each other, and each roll is rotated to form a projecting ridge pulling-out portion, so that it is exceptional even in the production of a large number of containers. Since no special processing means is required and the number of manufacturing steps is increased unlike the conventional product and the manufacturing process is not troublesome, the paper tube container can be manufactured at low cost. Further, the molding of the ridge-lined portion makes the fitting of the lid extremely good.

Further, in the present invention, another locking projection is formed on the upper side of the projection string portion, and the locking projection is engaged with the peripheral wall of the paper tube lid. By forming
The fitted state of the paper tube lid body is practically effective in that it becomes a container suitable for packaging food that is highly airtight and does not like moisture.

Furthermore, a recessed line portion is formed on the upper side of the protruding line extending portion, and a packing material for preventing the paper tube lid from falling out and preventing free rotation is fitted in the recessed line portion. Also, in a paper tube container in which a paper tube lid is removably fitted in the opening of the paper tube container, a ridge protruding toward the inside of the container is formed on the peripheral wall on the opening side of the paper tube container. However, in the case where a packing material for preventing the paper tube lid body from falling out and preventing free rotation is fitted in the groove formed by the projection, the paper tube container body of the paper tube lid body is As shown in the above, the mating condition is airtight, and it is not a paper tube container suitable for packaging food that is rich in airtightness and dislikes moisture as described above. There is a practical effect that a reliable lid can be obtained without rotating or falling off.

Further, according to the present invention, when a partition plate is fitted to the formed ridge-lined portion to divide the paper tube container into a plurality of storage portions to form a plurality of accommodating portions, the inside of the paper tube container is desired. There is an effect on the implementation that different foods can be stored separately.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view showing an embodiment of a paper tube container according to the present invention.

FIG. 2 shows another embodiment of the paper tube container according to the present invention, and is a front view in which a part provided with a locking ridge is vertically cut.

FIG. 3 shows another embodiment according to the present invention, and is a front view in which a part of which is fitted with a packing material for preventing the paper tube lid from falling off and preventing free rotation is cut vertically.

FIG. 4 shows another embodiment according to the present invention, and is a front view in which a part is longitudinally cut showing a case where a partition plate is fitted to a ridge-lined portion to divide the inside into a plurality of parts.

FIG. 5 shows an embodiment of the method for manufacturing a paper tube-made container according to the present invention, and is an explanatory view showing a manufacturing state.

FIG. 6 is an enlarged cross-sectional view of a ridge string extending portion in the embodiment.

FIG. 7 is a cross-sectional view showing a formation state of a protrusion string extending portion in the embodiment.

FIG. 8 is a perspective view of a container in a manufacturing process in the same example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Paper tube container 2 Paper tube lid 3 Ridge-lined part 9 Rotating roll 1010 Ridge-forming roll 11 Ridge for lock 12 Recessed groove 13 Recessed groove 14 Packing material 15 Partition plate

Claims (6)

[Claims] 1. A paper tube container in which a paper tube lid is removably fitted in an opening of the paper tube container, wherein an endless string extending section or a peripheral wall on the opening side of the paper tube container is provided. A paper tube container characterized by forming a partial ridge. 2. A ridge for locking is formed on the upper side of the ridge-lined portion, and a groove for engaging with the ridge for locking is formed on the peripheral wall of the paper tube lid. The paper tube-made container according to claim 1. 3. A ridge portion is formed on the upper side of the ridge-lined portion, and a packing material is attached to the ridge portion to prevent the paper tube lid body from falling out and preventing free rotation. The paper tube container according to claim 1. 4. A paper tube container in which a paper tube lid is removably fitted in an opening of a paper tube container, wherein a protrusion protruding toward the inside of the container is formed on a peripheral wall of the paper tube container on the opening side. And a packing material for preventing the falling of the lid made of a paper tube and preventing the free rotation of the paper tube in a groove formed by the projection. 5. The paper tube-made product according to claim 1, wherein a partition plate is fitted to the formed ridge-lined portion to divide the paper-tube-made container into a plurality of storage parts. container. 6. A method of manufacturing a paper tube container in which a paper tube lid body is removably fitted into an opening of a paper tube container obtained by using a paper tube The rotary rolls with protrusions on the inside of the container tube of No. 1 and the conical trapezoidal rolls on the outside correspond to a pair of diagonally-provided protrusion-forming rolls, and each roll is rotated to form a punched protrusion string. A method for manufacturing a paper tube container, which comprises forming a projecting portion.