JP6100719B2 - Paper tube container - Google Patents

Description

  The present invention relates to a paper tube container.

  Conventionally, as described in Patent Document 1, as a paper tube container, a container main body formed by holding a paper bottom plate in a lower holding portion provided so as to protrude inwardly at a lower end portion of a paper tubular body, and paper A lid provided on the top of the container main body in which the contents are accommodated, and having a lid formed by holding a paper lid on an upper holding portion provided so as to protrude inward at the upper end of the annular body There is one in which a lid can be attached to and detached from the fitting portion.

JP-A-8-91383

  The paper tube containers described in Patent Document 1 are stacked up and down together with other paper tube containers of the same shape at the display stage at the store. At this time, the upper and lower paper tube containers are to be stacked on the same axis as shown in FIG. 10A, and the curled lower holding portion provided at the lower end portion of the cylindrical body of the container body in the upper paper tube container. When the upper part is placed on a curled upper holding part provided at the upper end of the annular body of the lid in the lower paper tube container, the lower holding part of the upper paper tube container is placed on the lower paper tube container. It easily slips to the upper holding part and easily slips off. As a result, it is easy to cause collapse of the stack during an earthquake. When the lower holding portion and the upper holding portion are curled, the rounded surface promotes up and down sideslip and side slip.

  Accordingly, when stacking a large number of paper tube containers, as shown in FIG. 10 (B), one paper tube container on the upper stage side rides on two paper tube containers lined up on the lower side. A pyramidal stacking form is adopted. For this reason, the number of stacked paper tube containers per unit floor area of the display stand is small, and the display performance is poor.

  An object of the present invention is to enable stable stacking of upper and lower paper tube containers on the same axis.

According to the first aspect of the present invention, there is provided a container body formed by holding a paper bottom plate in a lower holding portion provided so as to protrude inwardly at a lower end portion of a paper tubular body, and an upper end portion of a paper annular body. It has a lid formed by holding a paper lid on the upper holding part provided so as to protrude inward, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body. In a paper tube container that can be stacked up and down, it projects coaxially with the cylindrical body from the lower holding portion provided in the cylindrical body of the container body and protrudes downward from the lower holding portion. A lower end protruding portion provided on the cylindrical body of the container body in the upper paper tube container stacked vertically is provided with a lower end protruding portion fixed to the cylindrical body. are those formed by set to enter the inside of the upper holding portion provided on the annular body, the lower projecting portion is a plastic molded body, Plastic molded body is obtained by such a bottom plate of the container body, formed by sandwiched between the lower holding portion provided on the cylindrical body of the container body.

According to a second aspect of the present invention, there is provided a container main body in which a paper bottom plate is held in a lower holding portion provided so as to protrude inwardly at a lower end portion of a paper cylindrical body, and an upper end portion of a paper annular body. It has a lid formed by holding a paper lid on the upper holding part provided so as to protrude inward, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body. In a paper tube container that can be stacked up and down, an upper end protrusion that protrudes upward from the upper holding portion coaxially with the annular body from the inner side of the upper holding portion provided in the annular body of the lid The upper end projecting portion provided on the annular body of the lid of the lower paper tube container stacked vertically is provided on the cylindrical body of the container body of the upper paper tube container. are those which comprising a set manner into the inside of the lower holding part provided, the upper protruding portion is made of plastic molding, plug Chick molded body is obtained by the so is sandwiched between the upper holding portion provided with the lid plate of the lid, the annular body of the lid body.

According to a third aspect of the present invention, there is provided a container body formed by holding a paper bottom plate in a lower holding portion provided so as to protrude inwardly at a lower end portion of a paper tubular body, and an upper end portion of the paper annular body. It has a lid formed by holding a paper lid on the upper holding part provided so as to protrude inward, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body. In a paper tube container that can be stacked up and down, it projects coaxially with the cylindrical body from the lower holding portion provided in the cylindrical body of the container body and protrudes downward from the lower holding portion. An upper end that has a lower end protruding portion fixed to the cylindrical body and protrudes upward from the upper holding portion coaxially with the annular body from the inner side of the upper holding portion provided on the annular body of the lid The lower end protruding portion provided on the cylindrical body of the container body in the upper paper tube container that is provided with the protruding portion fixedly on the annular body is Are those in which a is set so as to fit the upper protruding portion provided in the annular body of the lid in the paper tube container, the lower projecting portion is made of plastic molding, plastic molded body and the bottom plate of the container body, The upper end projecting portion is made of a plastic molded body and is sandwiched between a lower holding portion provided on the cylindrical body of the container body, and the plastic molded body includes a lid plate of the lid body and an annular shape of the lid body. It is sandwiched between an upper holding portion provided on the body .

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , further comprising an inner cylinder that constitutes a seal that the main body of the container is inserted into the cylindrical body, and from the cylindrical body of the intermediate cylinder A portion protruding upward is formed as a lid fitting portion.

(Claim 1)
(a) When paper tube containers of the same shape are stacked vertically on the same axis in the store display stage, the lower end protrusion provided on the cylindrical body of the container body in the upper paper tube container is It is set so as to enter the inside of the upper holding portion provided in the annular body of the lid in the paper tube container. Accordingly, the lower holding portion of the upper paper tube container is placed on and in contact with the upper holding portion of the lower paper tube container, and the lower holding portion and the upper holding portion have a curled round surface. Even if it slides slightly, or even if it slides slightly with the lower end protruding part of the upper paper tube container in contact with the cover plate of the lower paper tube container, the lower end of the upper paper tube container The protruding portion abuts against the inner peripheral surface of the upper holding portion of the lower paper tube container, thereby preventing lateral displacement. For this reason, a plurality of paper tube containers can be stably stacked on the same axis, avoiding the collapse of loading during an earthquake, etc., and increasing the number of stacked displays per unit floor area of the display stand, Display property can be improved.

  (b) The lower end protrusion provided on the container body is fixedly provided on the cylindrical body. Therefore, the user does not need to attach and detach the lower end protruding portion to / from the container body before and after the display, which is convenient.

  (c) The lower end protruding portion provided in the container body protrudes downward from the lower holding portion provided in the lower end portion of the cylindrical body. Therefore, when the paper tube container is placed on the table surface or the like, the container main body is raised by the amount of the lower end protruding portion, moisture on the table surface hardly reaches the inside of the container main body, and the contents are less likely to be moisture. This effect becomes more prominent when the lower end protrusion is made of a plastic molded body.

(Claim 2)
(d) When stacking paper tube containers of the same shape vertically on the same axis in the store display stage, the upper end protrusion provided on the annular body of the lid of the lower paper tube container is the upper paper It sets so that it may enter inward of the lower holding part provided in the cylindrical body of the container main body in a tube container. Accordingly, the lower holding portion of the upper paper tube container is placed on and in contact with the upper holding portion of the lower paper tube container, and the lower holding portion and the upper holding portion have a curled round surface. Even if it slides slightly, or even if it slides slightly with the bottom plate of the upper paper tube container resting on the upper end protrusion of the lower paper tube container, the upper end of the lower paper tube container The protruding portion abuts against the inner peripheral surface of the lower holding portion of the upper paper tube container, thereby preventing the lateral displacement. For this reason, a plurality of paper tube containers can be stably stacked on the same axis, avoiding the collapse of loading during an earthquake, etc., and increasing the number of stacked displays per unit floor area of the display stand, Display property can be improved.

  (e) The upper end protrusion provided on the lid is fixedly provided on the annular body. Therefore, the user does not have to attach and detach the upper end protrusion from the lid before and after the display, which is easy to use.

(Claim 3)
(f) When stacking the same shape of paper tube containers up and down on the same axis at the store display stage, the lower end protrusion provided on the cylindrical body of the container body in the upper paper tube container is It is set so as to be fitted to the upper protrusion provided on the annular body of the lid in the paper tube container. Accordingly, the lower holding portion of the upper paper tube container is placed on and in contact with the upper holding portion of the lower paper tube container, and the lower holding portion and the upper holding portion have a curled round surface. Even if it slides slightly, or even if it slides slightly in a state where the lower end protrusion of the upper paper tube container is in contact with the inner concave surface of the upper end protrusion of the lower paper tube container, The lower end projecting portion of the paper tube container abuts on the inner peripheral surface of the upper end projecting portion of the lower paper tube container, thereby preventing lateral displacement. For this reason, a plurality of paper tube containers can be stably stacked on the same axis, avoiding the collapse of loading during an earthquake, etc., and increasing the number of stacked displays per unit floor area of the display stand, Display property can be improved.

  (g) The lower end protrusion and the upper end protrusion provided on each of the container body and the lid are fixedly provided on the cylindrical body and the annular body. Therefore, the user does not need to attach and detach the lower end protruding portion and the upper end protruding portion to and from the container main body and the lid before and after the display, which is easy to use.

  (h) The lower end protruding portion provided in the container body protrudes downward from the lower holding portion provided in the lower end portion of the cylindrical body. Therefore, when the paper tube container is placed on the table surface or the like, the container main body is raised by the amount of the lower end protruding portion, moisture on the table surface hardly reaches the inside of the container main body, and the contents are less likely to be moisture. This effect becomes more prominent when the lower end protrusion is made of a plastic molded body.

(Claims 1 and 3 )
(i) The lower end protruding portion made of a plastic molded body is incorporated together with the bottom plate when the container body is manufactured, and is sandwiched between the lower holding portion and the bottom plate provided on the cylindrical body of the container body, and the cylindrical shape of the container body It is easily fixed to the body.

(Claims 2 and 3 )
(j) The upper end protruding portion made of a plastic molded body is incorporated together with the lid plate when the lid body is manufactured, and is sandwiched between the upper holding portion and the lid plate provided in the annular body of the lid body. It is easily fixed to the body.

(Claim 4 )
(k) In a stamped paper tube container, the cylindrical body of the container body and the annular body of the lid body have the same diameter, and as a result, the lower holding part of the container body and the upper holding part of the lid body have the same diameter. Become. As a result, the gap G between the outer diameter of the lower end protruding portion provided so as to protrude downward from the lower holding portion of the container body and the inner diameter of the upper holding portion of the lid is as small as possible. Further, the gap G between the outer diameter of the upper end protruding portion provided so as to protrude upward from the upper holding portion of the lid and the inner diameter of the lower holding portion of the container body is as small as possible. Therefore, when stacking the Indo-type paper tube containers, the amount of lateral displacement until the lower end protruding portion of the upper paper tube container collides with the inner peripheral surface of the upper holding portion of the lower paper tube container, or the upper paper tube The amount of lateral displacement until the lower holding portion of the container abuts the outer peripheral surface of the upper end protruding portion of the lower paper tube container is minimized within the range of the small gap G, and stacking stability can be improved.

FIG. 1 shows Example 1, (A) is a schematic cross-sectional view showing a paper tube container, and (B) is a schematic cross-sectional view showing a stacked state of the paper tube containers. FIG. 2 is a schematic perspective view showing the stacked state of the paper tube containers. FIG. 3 is a schematic perspective view showing a plastic molded body. 4A and 4B show a second embodiment, in which FIG. 4A is a schematic cross-sectional view showing a paper tube container, and FIG. 4B is a schematic cross-sectional view showing a stacked state of paper tube containers. FIG. 5 shows Example 3, (A) is a schematic cross-sectional view showing a paper tube container, and (B) is a schematic cross-sectional view showing a stacked state of the paper tube containers. FIG. 6 shows Example 4, (A) is a schematic cross-sectional view showing a paper tube container, and (B) is a schematic cross-sectional view showing a stacked state of the paper tube containers. FIG. 7 is a schematic perspective view showing the stacked state of the paper tube containers. FIG. 8 shows Example 5, (A) is a schematic cross-sectional view showing a paper tube container, and (B) is a schematic cross-sectional view showing a stacked state of the paper tube containers. FIG. 9 shows Reference Example 1 , (A) is a schematic cross-sectional view showing a paper tube container, and (B) is a schematic cross-sectional view showing a stacked state of the paper tube containers. FIG. 10 is a schematic view showing an example of stacking forms of paper tube containers.

Example 1 (FIGS. 1 to 4)
The paper tube container 1 shown in FIG. 1 is configured such that a lid 20 can be attached to and detached from an opening 10A of a container body 10 in which contents are stored.

  The container body 10 holds a paper bottom plate (face) 12 by dropping it into a curled lower holding portion 11A provided so as to protrude inwardly at a lower end portion of a cylindrical paper tubular body 11. The lower holding part 11A is formed by rounding the lower end edge of the cylindrical body 11 into a curled shape. In addition, the container main body 10 is made into the upper end edge part 11B which rounded and curled the upper end edge of the cylindrical body 11 in the curl shape.

  The lid body 20 holds the paper lid plate (face) 22 by dropping it into a curled upper holding portion 21A provided so as to protrude inwardly at the upper end of the annular paper-made body 21. The upper holding portion 21A is obtained by rounding the upper end edge of the annular body 21 into a curl shape.

  The paper tube container 1 can detachably attach the lid 20 to a lid fitting portion 11C defined on the outer periphery of the upper portion of the container body 10 (a fixed length range including the upper end of the cylindrical body 11). In addition, the container main body 10 and the lid 20 have the same paper board thickness of the cylindrical body 11 and the annular body 21.

  The paper tube containers 1 are stacked up and down together with other paper tube containers 1 having the same shape at the store display stage (FIG. 10A). At this time, the paper tube container 1 has the following configuration so that it can be stably stacked on the same axis as the other paper tube containers 1.

  The paper tube container 1 is coaxial with the cylindrical body 11 from the inner side (inner diameter side) of the lower holding part 11A provided on the cylindrical body 11 of the container body 10 and is lower than the lower holding part 11A. A protruding lower end protruding portion 31 is fixedly provided on the cylindrical body 11.

  The lower end protrusion 31 is formed of a plastic molded body 30 as shown in FIG. The plastic molded body 30 has an annular flange portion 30F on the outer edge side of a flat plate having a disc shape, and a protruding ridge portion 30P forming an annular shape on the inner peripheral side of the flange portion 30F. A recessed surface 30 </ b> L is formed on the circumferential side, and this protrusion 30 </ b> P is defined as a lower end protrusion 31.

  The plastic molded body 30 has a flange portion 30F sandwiched between the bottom plate 12 of the container main body 10 and the lower holding portion 11A provided on the cylindrical body 11 of the container main body 10, and is integrated and integrated into the cylindrical body 11. The The protrusion 30P of the plastic molded body 30 projects from the inner side of the lower holding part 11A of the cylindrical body 11 to the lower side of the lower holding part 11A to form a lower end protruding part 31. At this time, the outer peripheral surface of the bottom plate 12 is lightly press-fitted into the inner surface of the cylindrical body 11 and / or bonded to the inner surface of the cylindrical body 11. The upper and lower surfaces of the flange portion 30F of the plastic molded body 30 may be bonded to the lower surface of the bottom plate 12 and the upper surface of the lower holding portion 11A of the cylindrical body 11.

  In the stacked state of the plurality of paper tube containers 1, as shown in FIGS. 1 and 2, the lower end protruding portion provided on the cylindrical body 11 of the container body 10 in the upper paper tube container 1 stacked vertically. 31 is set so as to enter the inside of the upper holding portion 21 </ b> A provided on the annular body 21 of the lid 20 in the lower paper tube container 1. The lower holding portion 11A of the upper paper tube container 1 may be placed on and in contact with the upper holding portion 21A of the lower paper tube container 1, and the lower end protrusion 31 of the upper paper tube container 1 is placed on the lower side. It may be placed in contact with the cover plate 22 of the paper tube container 1.

Therefore, according to the present embodiment, the following operational effects can be obtained.
(a) When paper tube containers 1 having the same shape are stacked vertically on the same axis in the store display stage, a lower end protrusion 31 provided on the cylindrical body 11 of the container body 10 in the upper paper tube container 1 Is set so as to enter the inside of the upper holding portion 21 </ b> A provided in the annular body 21 of the lid 20 in the lower paper tube container 1. Accordingly, the lower holding portion 11A of the upper paper tube container 1 is placed on and in contact with the upper holding portion 21A of the lower paper tube container 1, and the lower holding portion 11A and the upper holding portion 21A are curled. Even if they slide slightly to each other due to having a surface or the like, or slightly slipped with the lower end protruding portion 31 of the upper paper tube container 1 placed on the cover plate 22 of the lower paper tube container 1 However, the lower end protruding portion 31 of the upper paper tube container 1 abuts against the inner peripheral surface of the upper holding portion 21A of the lower paper tube container 1 to prevent lateral displacement. Therefore, it is possible to stack a plurality of paper tube containers 1 on the same axis stably, avoid collapsing of the stack during an earthquake, etc., and increase the number of stacked displays per unit floor area of the display stand. , Display performance can be improved.

  (b) The lower end protrusion 31 provided on the container body 10 is fixedly provided on the cylindrical body 11. Therefore, it is not necessary for the user to attach / detach the lower end protrusion 31 to / from the container body 10 before and after display, which is convenient.

  (c) The lower end protruding portion 31 provided on the container body 10 protrudes below the lower holding portion 11A provided on the lower end portion of the cylindrical body 11. Therefore, when the paper tube container 1 is placed on the table surface or the like, the container main body 10 is raised by the amount of the lower end protruding portion 31, so that moisture on the table surface hardly reaches the inside of the container main body 10, Make it harder. This effect becomes more prominent when the lower end protrusion 31 is made of a plastic molded body.

  (d) A lower end protruding portion 31 made of a plastic molded body 30 is incorporated together with the bottom plate 12 at the time of manufacturing the container body 10, and between the lower holding portion 11 </ b> A provided on the cylindrical body 11 of the container body 10 and the bottom plate 12. It is clamped and is simply fixed to the cylindrical body 11 of the container body 10.

(Example 2) (FIG. 4)
The difference between the paper tube container 2 of the second embodiment and the paper tube container 1 of the first embodiment is that an upper end protruding portion 41 is provided on the lid 20 side as shown in FIG. In the paper tube container 2, the same parts as those in the paper tube container 1 are denoted by the same reference numerals, and description thereof is omitted.

  That is, the paper tube container 2 is coaxial with the annular body 21 from the inner side (inner diameter side) of the upper holding part 21A provided on the annular body 21 of the lid body 20 and upwards from the upper holding part 21A. A projecting upper end projecting portion 41 is fixed to the annular body 21.

  The upper end protrusion 41 is formed of a plastic molded body 40. The plastic molded body 40 is the same as the plastic molded body 30 of the first embodiment, and includes an annular flange portion 40F, a recessed surface 40L, and a protruding portion 40P.

  In the plastic molded body 40, the flange portion 40 </ b> F is sandwiched between the lid plate 22 of the lid body 20 and the upper holding portion 21 </ b> A provided on the annular body 21 of the lid body 20, and is integrated into the annular body 21. . The protrusion 40P of the plastic molded body 40 projects from the inner side of the upper holding part 21A of the annular body 21 to the upper side of the upper holding part 21A to form an upper end protruding part 41. At this time, the outer peripheral surface of the cover plate 22 is lightly press-fitted into the inner surface of the annular body 21 and / or bonded to the inner surface of the annular body 21. The upper and lower surfaces of the flange portion 40F of the plastic molded body 40 may be bonded to the upper surface of the cover plate 22 and the lower surface of the upper holding portion 21A of the annular body 21.

  In the stacked state of the plurality of paper tube containers 2, as shown in FIG. 4, the upper end protruding portion 41 provided on the cylindrical body 21 of the lid body 20 in the lower paper tube container 2 stacked vertically is provided. The upper paper tube container 2 is set so as to enter the lower holding portion 11A provided in the cylindrical body 11 of the container body 10. The lower holding portion 11A of the upper paper tube container 2 may be placed in contact with the upper holding portion 21A of the lower paper tube container 2, or the cover plate 22 of the upper paper tube container 2 is placed on the lower paper. You may mount on the upper end protrusion part 41 of the tube container 2.

Therefore, according to the present embodiment, the following operational effects can be obtained.
(a) When the paper tube containers 2 having the same shape are stacked up and down on the same axis at the stage of display at the store, the upper end protrusion 41 provided on the annular body 21 of the lid 20 in the lower paper tube container 2 Is set so as to enter the inside of the lower holding portion 11 </ b> A provided in the cylindrical body 11 of the container body 10 in the upper paper tube container 2. Accordingly, the lower holding portion 11A of the upper paper tube container 2 is placed on and in contact with the upper holding portion 21A of the lower paper tube container 2, and the lower holding portion 11A and the upper holding portion 21A are curled. Even if they slide slightly to each other due to having a surface or the like, or if the bottom plate 12 of the upper paper tube container 2 is slightly slipped in a state of being placed on the upper end protruding portion 41 of the lower paper tube container 2 Also, the upper end protruding portion 41 of the lower paper tube container 2 collides with the inner peripheral surface of the lower holding portion 11A of the upper paper tube container 2 to prevent lateral displacement. For this reason, a plurality of paper tube containers 2 can be stacked stably on the same axis, avoiding collapse of the stack during an earthquake, etc., and increasing the number of stacked displays per unit floor area of the display stand. , Display performance can be improved.

  (b) The upper end protrusion 41 provided on the lid 20 is fixedly provided on the annular body 21. Therefore, the user does not need to attach and detach the upper end protruding portion 41 to and from the lid body 20 before and after display, which is convenient.

  (c) The upper end protruding portion 41 made of the plastic molded body 40 is incorporated together with the lid plate 22 when the lid body 20 is manufactured, and between the upper holding portion 21 </ b> A provided on the annular body 21 of the lid body 20 and the lid plate 22. And is easily fixed to the annular body 21 of the lid body 20.

(Example 3) (FIG. 5)
As shown in FIG. 5, the paper tube container 2 according to the third embodiment is provided with a lower end protrusion 31 substantially in the same form as the lower end protrusion 31 of the paper tube container 1 according to the first embodiment. The upper end protrusion 41 having substantially the same shape as the lower end protrusion 41 in the second paper tube container 2 is provided on the lid 20. In the paper tube container 3, the same parts as those in the paper tube container 1 are denoted by the same reference numerals, and the description thereof is omitted. However, when the paper tube containers 1, 2, and 3 of Examples 1, 2, and 3 have the same size, the lower end protruding portion 31 of the paper tube container 3 has a smaller diameter than the lower end protruding portion 31 of the paper tube container 1, The upper end protruding portion 41 of the tube container 3 may be modified such that it has a larger diameter than the upper end protruding portion 41 of the paper tube container 2.

  In the stacked state of the plurality of paper tube containers 3, as shown in FIG. 5, the lower end protruding portion 31 provided on the cylindrical body 11 of the container body 10 in the upper paper tube container 3 stacked up and down, It is set so as to fit inside (inner peripheral side) of the upper end protrusion 41 provided on the annular body 21 of the lid 20 in the lower paper tube container 3. The lower end protrusion 31 may be set so as to be fitted on the outer side (outer peripheral side) of the upper end protrusion 41. The lower holding portion 11A of the upper paper tube container 3 may be placed on and in contact with the upper holding portion 21A of the lower paper tube container 3, and the lower end protruding portion 31 of the upper paper tube container 3 is placed on the lower side. It may be placed on the inner concave surface 40L of the plastic molded body 40 of the paper tube container 3.

Therefore, according to the present embodiment, the following operational effects can be obtained.
(a) When the paper tube containers 3 having the same shape are stacked up and down on the same axis at the stage of display at the store, the lower end protrusion 31 provided on the cylindrical body 11 of the container body 10 in the upper paper tube container 3 Is set so as to be fitted to the upper protrusion provided on the annular body 21 of the lid 20 in the lower paper tube container 3. Therefore, the lower holding portion 11A of the upper paper tube container 3 is placed on and in contact with the upper holding portion 21A of the lower paper tube container 3, and the lower holding portion 11A and the upper holding portion 21A are curled. Even if they slide slightly to each other due to having a surface or the like, the lower end protruding portion 31 of the upper paper tube container 3 is placed on the inner recessed surface 40L of the upper end protruding portion 41 of the lower paper tube container 3 Even if it slides slightly in the state, the lower end protruding portion 31 of the upper paper tube container 3 abuts on the inner peripheral surface of the upper end protruding portion 41 of the lower paper tube container 3 to prevent the lateral displacement. Therefore, a plurality of paper tube containers 3 can be stacked stably on the same axis, avoiding collapse of the stack during an earthquake, and increasing the number of stacked displays per unit floor area of the display stand. , Display performance can be improved.

  (b) The lower end protruding portion 31 and the upper end protruding portion 41 provided on the container body 10 and the lid body 20 are fixedly provided on the cylindrical body 11 and the annular body 21, respectively. Therefore, it is not necessary for the user to attach / detach the lower end protrusion 31 and the upper end protrusion 41 to / from the container body 10 and the lid 20 before and after display, which is convenient.

  In addition, according to the present Example, the effect of (c), (d) of Example 1 and (c) of Example 2 is also exhibited.

(Examples 4 and 5) (FIGS. 6, 7, and 8)
The paper tube containers 4 and 5 of the fourth and fifth embodiments are different from the paper tube container 1 of the first embodiment in that the container body 10 is lightly press-fitted and / or bonded to the cylindrical body 11 as shown in FIGS. It has a cylindrical paper middle cylinder 13 that constitutes a seal that is inserted through an agent, and a portion protruding upward from the cylindrical body 11 of the middle cylinder 13 is defined as a lid fitting portion 11C. The paper tube containers 4 and 5 are of the seal type, and when the lid body 20 is fitted to the lid fitting portion 11 </ b> C composed of the middle cylinder 13 of the container body 10, the tubular body 11 of the container body 10 and the annular body of the lid body 20. 21 has the same diameter. In the paper tube containers 4 and 5, the same parts as those in the paper tube container 1 are denoted by the same reference numerals, and the description thereof is omitted.

  Accordingly, in the stamped paper tube containers 4 and 5, the cylindrical body 11 of the container body 10 and the annular body 21 of the lid body 20 have the same diameter. As a result, the lower holding portion 11A of the container body 10 and the lid body The 20 upper holding portions 21A have the same diameter. Thereby, the gap G between the outer diameter of the lower end protruding portion 31 provided so as to protrude downward from the lower holding portion 11A of the container body 10 and the inner diameter of the upper holding portion 21A of the lid body 20 is as small as possible. Become. Further, a gap G between the outer diameter of the upper end protruding portion 41 provided so as to protrude upward from the upper holding portion 21A of the lid 20 and the inner diameter of the lower holding portion 11A of the container body 10 is as small as possible. . Accordingly, when the stamped paper tube containers 4 and 5 are stacked, as shown in FIGS. 6, 7, and 8, the lower end protruding portion 31 of the upper paper tube container 4 is the upper holding portion of the lower paper tube container 4. The amount of lateral displacement until the contact with the inner peripheral surface of 21A or the amount of lateral displacement until the upper holding portion 21A of the upper paper tube container 5 abuts with the outer peripheral surface of the upper end protruding portion 41 of the lower paper tube container 5 It is minimized within the range of the small gap G, and stacking stability can be improved.

( Reference Example 1 ) (Fig. 9 )
The difference between the paper tube container 6 of Reference Example 1 and the paper tube container 1 of Example 1 is that the lower end protrusion 31 provided on the cylindrical body 11 of the container body 10 is a bottom plate of the container body 10 as shown in FIG. 12 is integrally formed. In this reference example , the bottom plate 12 is pulp-molded, and the outer edge side of a flat plate having a disk shape is an annular flange portion 12F, and an annular ridge portion 12P is formed to project on the inner peripheral side of the flange portion 12F. A concave surface 12 </ b> L is formed on the inner peripheral side of the protrusion 12 </ b> P, and this protrusion 12 </ b> P is defined as a lower end protrusion 31.

  Therefore, the lower end protruding portion 31 is formed integrally with the bottom plate 12 of the container body 10 and is easily formed.

  In addition, the upper end protrusion 41 provided on the annular body 21 of the lid 20 in the paper tube container 2 of the second embodiment can be integrally formed with the lid plate 22 of the lid 20.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. The above-described paper tube containers 1 to 5 are round tube containers in which the container main body 10 and the lid body 20 form a cylindrical shape, but the container main body 10 and the lid body 20 form a rectangular tube shape such as a square cylinder (the bottom plate 12, the lid The face plate of the plate 22 may be a square tube container.

  According to the present invention, the upper and lower paper tube containers can be stably stacked on the same axis.

1-5 paper tube container 10 container main body 11 cylindrical body 11A lower holding part 11C lid fitting part 12 bottom plate 13 middle cylinder 20 lid 21 annular body 21A upper holding part 22 lid plate 30 plastic molding 31 lower end protrusion 40 plastic Molded body 41 Upper end protrusion

Claims (4)

A container body that holds a paper bottom plate in a lower holding part provided so as to protrude inwardly at the lower end part of the paper cylindrical body, and is provided so as to protrude inwardly at an upper end part of the paper annular body. And a lid formed by holding a paper lid on the upper holding part, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body.
In paper tube containers that can be stacked up and down,
A lower end protruding portion that is coaxial with the cylindrical body and protrudes downward from the lower holding portion from the inside of the lower holding portion provided on the cylindrical body of the container body is fixedly provided to the cylindrical body. ,
The lower end protruding portion provided on the cylindrical body of the container body in the upper paper tube container stacked vertically is placed inward of the upper holding portion provided on the annular body of the lid in the lower paper tube container. It is those in which a is set to,
The paper tube container characterized in that the lower end protruding portion is made of a plastic molded body, and the plastic molded body is sandwiched between a bottom plate of the container main body and a lower holding portion provided on the cylindrical body of the container main body. . A container body that holds a paper bottom plate in a lower holding part provided so as to protrude inwardly at the lower end part of the paper cylindrical body, and is provided so as to protrude inwardly at an upper end part of the paper annular body. And a lid formed by holding a paper lid on the upper holding part, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body.
In paper tube containers that can be stacked up and down,
An upper end protrusion that is coaxial with the annular body and projects upward from the upper holding part from the inside of the upper holding part provided on the annular body of the lid is fixed to the annular body,
The upper end protruding part provided in the annular body of the lid in the lower paper tube container stacked vertically is placed inward of the lower holding part provided in the cylindrical body of the container body in the upper paper tube container. It is those in which a is set to,
The paper tube container, wherein the upper end protruding portion is made of a plastic molded body, and the plastic molded body is sandwiched between a lid plate of the lid body and an upper holding portion provided on the annular body of the lid body. . A container body that holds a paper bottom plate in a lower holding part provided so as to protrude inwardly at the lower end part of the paper cylindrical body, and is provided so as to protrude inwardly at an upper end part of the paper annular body. And a lid formed by holding a paper lid on the upper holding part, and the lid can be attached to and detached from the lid fitting part provided on the upper part of the container body.
In paper tube containers that can be stacked up and down,
A lower end protruding portion that is coaxial with the cylindrical body and protrudes downward from the lower holding portion from the inside of the lower holding portion provided on the cylindrical body of the container body is fixedly provided to the cylindrical body. ,
An upper end protrusion that is coaxial with the annular body and projects upward from the upper holding part from the inside of the upper holding part provided on the annular body of the lid is fixed to the annular body,
The lower end protrusion provided in the cylindrical body of the container body in the upper paper tube container stacked vertically is fitted to the upper end protrusion provided in the annular body of the lid in the lower paper tube container. That is set ,
The lower end protruding portion is made of a plastic molded body, and the plastic molded body is sandwiched between a bottom plate of the container body and a lower holding portion provided on the cylindrical body of the container body,
The paper tube container, wherein the upper end protruding portion is made of a plastic molded body, and the plastic molded body is sandwiched between a lid plate of the lid body and an upper holding portion provided on the annular body of the lid body. . Any said container body has a cylindrical inside constituting the inro was fitted to the tubular body, the portion that projects upward from the cylindrical body of the middle barrel according to claim 1 to 3 comprising a lid fitting unit The paper tube container described in 1.

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