JP2012236648A - Wide-mouth tubular container and concavo-convex wall part molding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wide-mouth tubular container in which desired barrier properties are provided at a body part as a major portion of the container in a simple manner, and which has necessary high barrier properties or stable appearance shape by increasing shape holding power.SOLUTION: A body part 2 as a synthetic resin tubular body is provided with a mouth tube part 3 and a bottom part 8 by insert molding, opening and closing is performed by a lid 13 attached to/detached from the mouth tube part 3, the mouth tube part 3 and the bottom part 8 are hardly deformed, and have outer diameters larger than that of the body part 2. Accordingly, desired physical properties are easily provided at the body part 2, the shape stability of the body part 2 is enhanced, and more efficient waste disposal is achieved.

Description

  The present invention relates to a wide-mouthed tube body container in which a body portion which is a main portion of the container is formed of a tube body having a large diameter, and a method for forming an uneven wall portion on the body portion of the wide-mouthed tube body container.

  For example, Patent Document 1 is known as a container in which a body part, which is a main part of the container, is formed of a tube body. This tube body container shown in Patent Document 1 is formed by seamlessly forming a tube body, which is a thin flexible synthetic resin sleeve having flexibility, by extrusion molding, and by insert molding at the lower end of the tube body. Synthetic plastic bottom parts that are rigid enough to fit within the outer diameter of the tube body are integrally molded, and the upper end of the tube body and the fitting part that is fitted into the tube body and the upper end of the tube body outward A neck part having rigidity is mounted, and a rigid neck part is mounted, and the tube body is slidably inserted from the lower end toward the upper end to sandwich the tube body between the fitting part and the collar part It is the structure which mounts | wears with the press ring which has the rigidity joined.

  In the prior art disclosed in Patent Document 1, since a combination of a rigid fitting portion and a pressing ring and a bottom part are attached to the upper and lower ends of a flexible tube body, Even if a certain body part is a flexible tube body, the form is stable and can be handled as a normal container, and the bottom part is insert molded to the tube body, and the combination of the fitting part and the retaining ring is Since each is mounted by inserting and holding, the advantage of being easy to assemble is exhibited.

JP 2006008170 A

  However, in the above-described prior art, since the bottom part is positioned in the lower end of the tube body, the bottom part is interposed between the tube body as the insert material and the core mold inserted into the tube body. It is necessary to form a part of the cavity for molding, and accordingly, the structure of the mold for insert molding of the bottom part becomes complicated, and the insertion assembly of the combination of the fitting portion and the holding ring to the tube body After the assembly of the bottom part to the tube body by insert molding, the fitting part and the holding ring are inserted and assembled separately to the tube body, and the tube body, the fitting part and the holding ring are assembled. Therefore, it is difficult to easily impart the desired barrier properties because the tube assembly is an extruded product. There is a case, they say the problem there was.

  In addition, since the tube body as an insert material has a certain degree of flexibility, it can be said that the upper and lower ends are held indestructible at the mouth tube portion and the bottom portion, but in some cases, the shape retaining property is sufficient. In addition, there is a possibility that the shape retention may remain uneasy, and when the container is discarded, the tube body can be crushed to reduce the volume. However, since the volume reduction form is not constant, a preferable disposal process is always obtained. Further, since the surface of the tube body is a simple smooth surface, there is a problem that a favorable change cannot be given to the appearance appearance, and the tube body is less interesting.

  Furthermore, due to the reduced pressure generated in the container, it is easy to cause defective deformation in the flexible tube body, and the appearance of the container as a product may deteriorate due to the defective deformation of the body. There was a problem.

  Therefore, the present invention has been devised to solve the above-described problems in the prior art, and can easily provide a desired barrier property to the body, which is the main part of the container, and can enhance the shape retention. It is an object of the present invention to make it possible to easily obtain a wide-mouthed tube body container having a required barrier property and having a stable external shape.

The main configuration of the present invention for solving the above technical problem is:
A mouth tube part is formed at the upper end of the body part made of the synthetic resin tube body, and a bottom part that is closed at the lower end of the body part to form a leg part is formed by insert molding, and is opened and closed by a lid body that is attached to and detached from the mouth tube part. Being a wide-mouth tube container,
The body is made of a synthetic resin tube body,
The mouth tube portion has a tube-shaped main body tube that is difficult to deform and has an outer diameter larger than that of the body portion,
The bottom portion has a cylindrical piece portion that is difficult to deform and has a larger outer diameter than the trunk portion,
It is in.
The “wide mouth” in the wide-mouthed tube container means a bore size in which the mouth tube portion to be insert-molded can be punched from the mold portion that supports the tube barrel portion.

  Since the trunk portion which is the main portion of the container is made of a synthetic resin tube body, it can be made sufficiently thin.

  Further, since the tube body forming the body portion is naturally flexible, it is easy to reduce the volume by forcibly crushing and deforming the body portion when the container is discarded.

  Since the mouth tube portion has a main body tube that is hard to deform and has an outer diameter larger than that of the body portion, similarly, the bottom portion has a tube piece portion that is difficult to deform and has an outer diameter larger than that of the body portion. The upper and lower open portions of the tube body constituting the body portion are stably held in shape by the mouth tube portion and the bottom portion, so that the body portion which is the main portion of the container has flexibility. In spite of being configured, the shape can be stably maintained. In addition, since the outer peripheral surfaces of the mouth tube portion and the bottom portion are both located outside the outer surface of the body portion, when handling containers arranged in parallel, the flexible body portion is protected by the mouth tube portion and the bottom portion and other articles. Unintentional contact is prevented.

  Another configuration of the present invention is obtained by adding, to the main configuration described above, that the synthetic resin tube body constituting the body portion is made of a synthetic resin laminated sheet using an aluminum foil.

  In the case where the body portion is formed of a tube body made of a synthetic resin laminated sheet using aluminum foil, various excellent barrier functions exhibited by the aluminum foil can be exhibited. Functions can be added easily and reliably, and various barrier properties such as gas barrier properties can be given to the characteristics of the synthetic resin laminated sheet, that is, the tube constituting the body. It is easy to do, and various indications can be given under favorable conditions when it is formed into a sheet.

  Another configuration of the present invention is that the synthetic resin tube body constituting the trunk portion is made of a transparent synthetic resin laminated sheet using a silica vapor deposition layer or a transparent barrier resin film in the main configuration described above. It is added.

  In the case where the body is composed of a tube body made of a transparent synthetic resin laminated sheet using a silica vapor deposition layer or a transparent barrier resin film, the contents stored from the outside even when the container is sealed It is possible to make objects visible, and it is easy to impart various desired physical properties such as gas barrier properties to the tube body constituting the body of the synthetic resin laminated sheet, that is, the body portion. In addition, at the time of being formed into a sheet, various indications can be given under favorable conditions.

  In addition, another configuration of the present invention is obtained by adding the mouth tube portion and the bottom portion to the outer surface of the trunk portion in addition to the main configuration described above.

  For the case where the mouth tube and bottom are insert-molded on the outer surface of the body, the entire tube body constituting the body, which is the insert material, is simply assembled on the core mold of the mold apparatus. Since the insert molding can be carried out in this state, the structure of the mold apparatus for insert molding can be made extremely simple, and the assembly of the tube body, which is the insert material, into the core mold can be performed. Easy.

  In addition, another configuration of the present invention includes a main body tube of the mouth tube portion, an upper half portion in which a cover mounting portion is formed on the outer peripheral surface, and a bulge having a large outer diameter in thickness. It is composed of the lower half part forming the lower part.

  If the body tube of the mouth tube part is composed of an upper half part that forms the mounting part of the lid, and a lower half part that forms a bulging lower part having a large outer diameter, the bulge The lower portion can prevent the assembled lid body from being rubbed against other articles, and can stably provide a support portion when the lid body is attached or detached.

  In addition, another configuration of the present invention is configured such that the bottom portion that closes the lower end of the trunk portion is formed into a bottomed short cylindrical piece shape including a cylindrical piece portion and a flat bottom plate portion, and the bottom plate portion An open part is provided on the bottom plate, and the bottom film, which is an in-mold material, is placed over the top surface of the bottom plate. The bottom film is welded to the bottom plate closely, and the other part is separable. This is an addition to that.

  In the case where the bottom film is assembled to the bottom plate portion of the bottom portion configured in the shape of a bottomed short cylinder, in the state where the reduced pressure is generated in the sealed container, the soft bottom film becomes the bottom plate portion according to the reduced pressure. It displaces in a lifted state from the upper surface, thereby eliminating the reduced pressure generated in the container.

  In addition, another configuration of the present invention is configured such that the bottom portion that closes the lower end of the trunk portion is composed of a cylindrical piece portion, a ring plate-like bottom plate portion, and a bottom film that is an in-mold material. In addition to the fact that the bottom film portion is closed at the open portion of the bottom plate portion.

  The bottom part is composed of a cylindrical piece part, a ring plate-like bottom plate part, and a bottom film that is an in-mold material. If the bottom film closes the open part of the bottom plate part, the pressure is reduced in a sealed container. In a state in which the soft bottom film is generated, the soft bottom film bulges and deforms inside the container according to the reduced pressure, and the reduced pressure in the container disappears.

  In addition, another configuration of the present invention is provided with a concave-convex wall portion having a bending structure in the trunk portion in the main configuration described above, and the concave-convex wall portion is a part of the tube wall of the tube body formed in the trunk portion. It is added that it is formed by bending at the time of molding the container body.

  In the case where the rugged wall portion is provided on the trunk portion, since the rugged wall portion has a bent structure, the shape exerts a mechanical reinforcing action on the trunk portion, and the three-dimensional effect due to the ruggedness is also achieved. The shading will give a deep change to the appearance of the torso. In addition, as described above, the concave and convex wall portion reinforces the trunk portion, and therefore, when combined with a structure in which a bottom film is assembled to the bottom portion, occurrence of unauthorized deformation due to decompression of the trunk portion is substantially prevented. Become.

  Moreover, another structure of this invention adds that the uneven | corrugated wall part was formed in the spiral form to the combination of the above-mentioned main structure and an uneven | corrugated wall part.

  In the case where the concave and convex wall portion of the trunk portion is formed in a spiral shape, when discarding the container, by applying a pressing force to the trunk portion while rotating in the direction according to the spiral of the concave and convex wall portion, The body part can be crushed into a certain form, and thereby sufficient volume reduction can be obtained stably, and the spiral strip-shaped uneven wall part will exhibit a peripheral rib function, so the body part It exerts a reinforcing action against the external force from the side against the.

  Moreover, another structure of this invention adds that the uneven | corrugated wall part was formed in the shape of a vertical stripe to the combination of an above described main structure and an uneven | corrugated wall part.

  In the case where the concave and convex wall portion of the trunk portion is formed in a vertical stripe shape, the concave and convex wall portion functions as a reinforcing rib against the force acting on the trunk portion from above and below and from the side, so the trunk portion made of a tube body Can exhibit a high shape retention force.

  Another configuration of the present invention is a combination of the main configuration and the concavo-convex wall portion described above, in which the concavo-convex wall portion is formed in a shape that allows the display to appear by the concavo-convex portion.

  In the case that the uneven wall of the body is formed in a shape that makes the display appear uneven, the shading that the uneven wall appears appears on the outer surface of the body to display the uneven pattern and the product name. However, since this display appears due to the unevenness, the display is rich in three-dimensionality, and this makes it possible to display a deep display on the outer surface of the container body.

Another main configuration of the present invention for solving the above technical problem is:
The mold apparatus for insert molding the container body has a male mold and a female mold that is a pair of split molds,
Forming a concave / convex mold surface portion for forming a concave / convex wall portion having a bent structure on the tube body on a mold surface portion of a male mold and / or a female mold sandwiching a tube body that is an insert material;
After the tube body is externally assembled to the mold surface part of the male mold of the mold apparatus, the male mold and the female mold are clamped, and the concave and convex wall portion is molded by this mold clamping,
It is in.

  Since the concave and convex mold surface portions for pressing the concave and convex wall portions are formed in advance on the mold surface portions of the male mold and the female mold of the mold apparatus for insert molding the container main body, the tubular tube When the male and female dies are combined, that is, clamped, with the body attached to the male exterior, the tube body part sandwiched between the male and female parts provided with the concave and convex mold surfaces is The uneven wall portion of the bent wall structure is pressed by the uneven surface portion.

  That is, the concave and convex wall portion of the body portion of the container body is formed by using a mold clamping operation of a mold apparatus for insert-molding the container body, and does not require a dedicated molding operation and equipment. It is molded using the insert molding operation.

Since the present invention has the above-described configuration, the following effects can be obtained.
In the main configuration of the present invention, since the body portion constituting the main portion of the container is formed of a thin tube body, the amount of resin consumed in one container can be greatly reduced, thereby saving. Recycling can be obtained.

  In addition, since the body part, which is the main part of the container, is composed of a flexible tube body, the body part can be forcibly crushed and deformed sufficiently to reduce the volume, thereby simplifying the exhaust treatment of the container and Can be achieved efficiently.

  Furthermore, despite the fact that the body, which is the main part of the container, is composed of a flexible tube body, the shape can be maintained stably, and when handling containers arranged in parallel, the mouth tube and the bottom are protected. Since the flexible body portion is prevented from inadvertently contacting other articles, safe handling of the container can be reliably obtained.

  If the barrel is made of a tube made of synthetic resin laminated sheet using aluminum foil, the desired barrier function of the container can be easily and reliably added, so it has excellent storage and retention. A container that exhibits the ability can be obtained, and desired physical properties and display on the body portion can be easily provided. Therefore, a container that exhibits an excellent storage state can be obtained.

  If the body is made of a tube made of a transparent synthetic resin laminate sheet using a silica vapor deposition layer or a transparent barrier resin film, the contents stored from the outside can be seen, A container that is a product can be purchased with peace of mind, and desired physical properties and display on the body can be easily provided, so that a container that exhibits an excellent storage state can be obtained.

  In the case where the mouth tube portion and the bottom portion are insert-molded on the outer surface of the body portion, the structure of the mold apparatus for insert molding can be made extremely simple, and the tube body which is an insert material Therefore, the cost required for manufacturing the container as a product can be kept low, and the container can be provided at a low cost.

  If the body cylinder of the mouth tube part is composed of an upper half part that forms the mounting part of the lid, and a lower half part that forms a bulging lower part with a large outer diameter, the assembly It is possible to prevent the lid body from being rubbed against other articles, and since it is possible to provide a stable support portion during the operation of attaching and detaching the lid body, stable assembly of the lid body, A detaching operation can be obtained.

  A bottom film part assembled to the bottom plate part of the bottom part configured in a bottomed short cylinder piece, and the bottom part is composed of a cylinder piece part, a ring plate-like bottom plate part, and a bottom film that is an in-mold material, In the case where the bottom film is closed with the bottom film, the bottom film is displaced and extinguishes the reduced pressure. Can maintain a good appearance. A device that absorbs the reduced pressure by the displacement of the bottom film has a large reduced pressure absorption capability, and therefore can sufficiently cope with the use of filling the contents that are likely to generate a large reduced pressure at a high temperature.

  In the case where the rugged wall is provided on the barrel, the rugged wall can give mechanical reinforcement to the barrel and change in appearance, thereby improving structural stability and appearance. It becomes possible to obtain an interesting taste.

  In the case where the concave and convex wall portion of the trunk portion is formed in a spiral shape, sufficient volume reduction can be stably obtained, so that the disposal of the container can be performed efficiently, and the trunk portion Since it is possible to obtain a reinforcing action against an external force from the side of the body, it is possible to obtain a stable shape retention of the body portion.

  In the case where the concave and convex wall portion of the trunk portion is formed in a vertical stripe shape, the tube body barrel portion can exhibit a high shape retention force, so that it is easy to carry and handle. be able to.

  In the case where the concave and convex wall portion of the trunk portion is formed in a shape that reveals the display by the concave and convex portions, it becomes possible to give a favorable change to the outer surface of the container body, so that the product image of the container is good. Is possible.

  In the method for forming an uneven wall portion, which is another main configuration of the present invention, the uneven wall portion is formed by using a mold clamping operation of a mold apparatus for insert-molding the container body, so that a special processing means is used. Therefore, it is possible to easily and reliably form the concavo-convex wall portion by the conventional insert molding operation of the container body, and the implementation thereof is easy.

1 is an overall front view showing a first embodiment of the present invention. It is a whole longitudinal cross-sectional view of the example of 1st embodiment shown in FIG. It is a whole top view of the example of 1st embodiment shown in FIG. It is a longitudinal cross-sectional view which shows the volume reduction deformation | transformation state of 1st embodiment. It is a whole longitudinal cross-sectional view which shows the example of 2nd embodiment of this invention. It is a whole longitudinal cross-sectional view which shows the modification of the 2nd embodiment of this invention. It is a whole front view which shows one structural example of the example of 3rd embodiment of this invention. It is a whole longitudinal cross-sectional view of one structural example of the example of 3rd embodiment shown in FIG. It is an external appearance front view which shows the volume reduction deformation state of one structural example shown in FIG. It is a whole front view which shows the other modification of the example of 3rd embodiment of this invention. It is a whole front view which shows another modification of the example of 3rd embodiment of this invention. It is explanatory drawing of the shaping | molding procedure of the example of 3rd embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
A wide-mouthed tube body container (see FIG. 1) according to the present invention includes a container body 1 and a lid body 13, and the container body 1 includes a body portion 2 made of a synthetic resin tube body 18 having a large diameter, and the body portion 2. A top tube portion 3 that is attached to the upper end opening portion of the body portion 2 by insert molding to form an opening portion having a diameter substantially equal to the inner diameter of the body portion 2, and a bottom portion 8 that is attached to the lower end opening portion of the body portion 2 by insert molding. The lid 13 is attached to and detached from the mouth tube portion 3 to open and close the container body 1.

  The body portion 2 of the container body 1 is formed of a tube body 18 formed by rolling a synthetic resin laminated sheet. By selecting and combining the layers constituting the synthetic resin laminated sheet, the body portion 2 Desired physical properties can be easily provided. Moreover, since the trunk | drum 2 is the tube body 18 which has a softness | flexibility, forcible crushing deformation | transformation is possible, Therefore, it crushes from upper and lower at the time of disposal, or it crushes while twisting (FIG. 4, FIG. 9). By reference), it is possible to obtain a sufficient volume reduction of the container, whereby the disposal of the container can be achieved efficiently. In particular, when the diameter of the tube body 18 forming the body portion 2 is large, the above-described crushing deformation can be obtained appropriately and easily.

  For example, when a synthetic resin laminated sheet using aluminum foil is used as the tube body 18 forming the body portion 2, various barrier functions exhibited by the aluminum foil, for example, gas barrier properties against various gases, and liquid components A barrier property and a light-shielding property can be obtained, and an excellent content preservation effect can be obtained. Further, when a transparent synthetic resin laminated sheet using a silica vapor deposition layer or a transparent barrier resin film is used as the tube body 18 forming the body portion 2, the gas barrier property can be obtained from the outside of the container. Since the contents can be observed directly, the container as a product can be purchased with peace of mind.

  Since the mouth tube part 3 and the bottom part 8 are hard to be deformed, that is, have rigidity, the upper end part and the lower end part of the body part 2 having flexibility can be stably held in a constant shape. The fixed shape required as a container will be maintained. Moreover, since it has an outer diameter larger than the trunk | drum 2, when handling a container by arrange | positioning it in parallel, the mouthpiece part 3 and the bottom part 8 may abut against or rub against each other. However, the flexible body 2 does not come into contact with or rub against each other, and this effectively prevents the display state applied to the body 2 from deteriorating. .

  The mouth tube portion 3 and the bottom portion 8 are insert-molded on the outer surface of the body portion 2, and the mouth tube portion 3 (see FIG. 1) includes a cylindrical main body tube 4 which is a main portion, and the main body tube 4. The main body cylinder 4 is provided with a thread 5 which is a mounting function portion of the lid 13 on the outer peripheral surface of the upper half portion. The lower half portion is formed as a bulging lower portion 7 that is bulged to the outside. Since the bulging lower portion 7 forms the largest outer diameter portion of the container, when the container is handled, it prevents the other articles from coming into contact with the lid 13 in a rubbing manner. The screw assembly is stabilized, and when the lid 13 is attached or detached, it functions stably as a support portion on the container body 1 side.

  The bottom portion 8 (see FIG. 1) is formed into a bottomed short cylindrical shape from a short cylindrical tube piece portion 9 and a flat bottom plate portion 10 that closes the lower end open portion of the body portion 2. The upper surface peripheral edge is stepped and covers the lower end surface of the body 2. The bottom portion 8 is a portion that closes the lower end opening portion of the body portion 2 and forms a leg function portion of the container. In order to obtain a stable leg function, the bottom surface of the bottom plate portion 10 has a projecting end at the peripheral end portion. It is good to make it the shape protruded downward in the shape.

  Thus, since the mouth tube part 3 and the bottom part 8 are insert-molded on the outer surface of the tube body 18 which is an insert material constituting the body part 2, the tube body 18 which is an insert material covers the entire inner surface thereof. In close contact with the male mold 19 (see FIG. 12), the mold apparatus has only to form a cavity only on the outside of the tube body 18, and the structure becomes extremely simple.

  As shown in FIG. 2, the lid body 13 (see FIG. 1) has a short cylindrical shape having a top wall 14 and a cylindrical wall 15. The piece 16 and the seal strip 17 are provided in the shape of a hanging protrusion, and the seal tube piece 16 is tightly fitted into the upper end opening of the container body 1 in a state assembled to the container body 1. Is tightly elastically contacted with the upper end surface of the container body 1 over the entire circumference in a state assembled to the container body 1, and the container body 1 is sealed by the lid body 13 by the seal tube piece 16 and the seal strip 17. Is secured. Further, a thread that is screwed into the thread 5 of the mouth tube portion 3 is formed on the inner peripheral surface of the tube wall 15, and the container body 1 is screwed to the mouth tube portion 3 of the tube wall 15. Is maintained. A knurl, which is a fine vertical strip, is formed on the outer peripheral surface of the cylindrical wall 15 so that the lid 13 can be easily attached to and detached from the container body 1. It is set smaller than the outer diameter of the bulging lower part 7 of the part 3.

  In the case of the second embodiment shown in FIG. 5, a through-hole-like opening portion 11 is provided at the center of the bottom plate portion 10 of the bottom portion 8, and the bottom film 12 that is an in-mold material is covered with the top surface of the bottom plate portion 10. , And the bottom film 12 is assembled to the bottom plate portion 10 so that the peripheral end portion is closely welded and the other portions are detachably assembled.

  In the case of this second embodiment, since the bottom film 12 exhibits a large vacuum absorption capacity due to its displacement, it is preferable to apply it to a use in which a large vacuum is generated by filling the contents into the container at a high temperature. .

  FIG. 6 shows a modification of the second embodiment shown in FIG. 5, in which the bottom plate portion 10 of the bottom portion 8 is formed in a ring plate shape, and the bottom plate portion 10 of the bottom plate portion 10 is an in-mold material. The opening part 11 was configured to be closed.

  In the case of the modification of the second embodiment shown in FIG. 6, the bent bottom film 12 bulges outward from the open part 11 of the bottom plate part 10, but is filled in this state. When the high-temperature contents are cooled and a reduced pressure is generated in the container, the bottom film 12 swelled outward is displaced inside the container, thereby absorbing the reduced pressure generated in the container. At this time, the amount of displacement of the bottom film 12 toward the inside of the container can be changed so as to be larger than that in the second embodiment shown in FIG.

  In the case of the second embodiment shown in FIG. 5 and FIG. 6, the bottom film 12 may bend and deform due to shrinkage deformation after the mold release of the bottom part 8 that has been injection-molded. Since the bending deformation acts so as to facilitate the displacement of the bottom film 12 due to the decompression generated in the container, the decompression absorption effect by the bottom film 12 is further enhanced. In the case of the embodiment shown in FIG. 5, the bottom plate 10 supports the soft bottom film 12 and protects it from contact with other articles. In the case of the embodiment shown in FIG. Further resource saving of the resin material amount can be obtained.

  Further, in the second embodiment shown in FIGS. 5 and 6, when the body portion 2 is formed of a synthetic resin laminated tube body to which barrier properties are imparted, the same barrier property is applied to the bottom film 12 as well. Therefore, it is preferable that the bottom film 12 is made of a synthetic resin laminated film having barrier properties. Thus, the barrier property of the whole container can be improved by giving barrier property to the trunk | drum 2 and the bottom film 12 made from a synthetic resin laminated tube body which is a thin part.

  In the case of the third embodiment shown in FIGS. 7 to 11, the body 2 is provided with an uneven wall 2 a having a bent structure, and this uneven wall 2 a is a tube body formed on the body 2. A part of the 18 cylindrical walls is bent when the container body 1 is formed.

  In the case of the third embodiment, the uneven wall portion 2a can exhibit a reinforcing rib function due to the unevenness, and can change the appearance of the body portion 2 due to the shadow due to the unevenness. . That is, in the third embodiment, the concavo-convex wall 2a can mechanically reinforce the body 2 and / or displays a desired display on the appearance of the body 2. It is possible to make it.

  FIG. 7 and FIG. 8 show an example of the structure of the third embodiment, in which three spiral strips are formed as the uneven wall portion 2a. In the case of one structural example of the third embodiment, each concavo-convex wall portion 2a is formed in the body portion 2 with a structure close to a circumferential shape, so that a reinforcing action against an external force from the side of the body portion 2 is provided. 9, and when squeezing and deforming by squeezing from above and below, the concavo-convex wall portion 2a becomes the starting point of squeezing deformation, and the container is easily reduced and deformed in a constant form shown in FIG. be able to.

  In one structural example of the third embodiment, when the crushing deformation from above and below, by applying a turning force in accordance with the spiral direction of the concavo-convex wall portion 2a, as shown in FIG. It is easy to reduce the volume of the material in a twisted manner. In addition, when the large volume reduction deformation | transformation at the time of disposal is not requested | required, the uneven | corrugated wall part 2a is good also as not a spiral strip shape but a simple circumferential strip shape.

  FIG. 10 shows another structural example of the third embodiment, in which the concavo-convex wall portion 2a is formed into six vertical stripes. In the case of another structural example of the third embodiment, each uneven wall portion 2a is configured mainly for functioning as a reinforcing rib of the body portion 2, and the external force acting on the body portion 2 is applied. A sufficient reinforcing action will be exhibited. In particular, since each concavo-convex wall portion 2a has a vertical stripe shape, the buckling strength of the trunk portion 2 can be sufficiently increased.

  FIG. 11 shows another structural example of the third embodiment example, in which the uneven wall portion 2a is formed in a shape that allows the display to appear by the unevenness. The indication that the uneven wall portion 2a appears is for the purpose of decoration or to represent the product name, but the displayed indication appears due to the unevenness and shading caused by the unevenness. Therefore, it will appear with a sufficient three-dimensional effect, and will exhibit a high display effect. In particular, when a decorative pattern is formed on the concavo-convex wall portion 2a, a deep decorative effect that cannot be obtained by printing or labeling can be obtained.

  FIG. 12 is provided for explaining the molding procedure of the third embodiment. A mold apparatus for insert-molding the container body 1 includes a male mold 19 and a female mold 20 that is a pair of split molds. The concave and convex mold surface 21 is formed in advance on the mold surface portion of the female mold 20 that sandwiches the tube body 18 that is an insert material, and the concave and convex mold of the female mold 20 is clamped by the mold device. The cylindrical wall portion of the tube body 18 is pushed into the surface portion 21 to form the uneven wall portion 2a. The concavo-convex surface portion 21 may be provided on one or both of the male mold 19 and the female mold 20 as long as it is within a concavo-convex range that does not hinder mold release.

  In a state where the mold apparatus is opened (as shown in FIG. 12), the tube body 18 formed in a cylindrical shape having a predetermined length in advance is assembled to the male mold 19 from the direction of the arrow A in FIG. , See the two-dot chain line). Next, the female mold 20 as a pair of split molds is assembled to the male mold 19 from the direction of the arrow B in the figure and clamped, and the tube body 18 is clamped. By this clamping, an uneven wall is formed on the cylindrical wall of the tube body 18. The part 2a is press-molded.

  At the time of press molding of the concavo-convex wall portion 2a, at least one concavo-convex mold surface portion 21 of the male mold 19 and the female mold 20 is configured to be locally heatable, thereby pressing the concavo-convex wall portion 2a. It can be good. The local heating for the uneven surface portion 21 can be switched to cooling.

  In addition, attachment / detachment of the lid 13 with respect to the container main body 1 is not limited to a structure with a threaded assembly, and other assembly means capable of obtaining an appropriate dense assembly may be employed. Moreover, the bulging lower part 7 of the mouth tube part 3 does not need to have a large thickness as a whole, and has a structure in which a part of the bulging part 7 has a large thickness, and the other part exhibits rigidity capable of supporting a gripping force. The wall thickness may be as small as possible. Furthermore, it goes without saying that the unevenness of the uneven wall portion 2 a formed on the body portion 2 has an unevenness shape and an uneven shape that allow the insert-molded container body 1 to be properly released from the male mold 19.

  As described above, the wide-mouthed tube body container of the present invention has a body portion, which is the main part of the container, formed of a synthetic resin tube body, and this tube body is molded as an insert material, so the amount of resin is sufficiently suppressed. Resource saving and safe handling can be easily obtained, and high-efficiency disposal can be obtained. The body, which is the main part of the container body, is composed of a tube body. A wide range of usage is expected for the wide-mouthed tube container.

DESCRIPTION OF SYMBOLS 1; Container main body 2; Body part 2a; Uneven wall part 3; Mouth tube part 4; Main body pipe | tube 5; Screw 6; Inner collar 7; Part 12; bottom film 13; lid 14; top wall 15; cylinder wall 16; seal cylinder piece 17; seal strip 18; tube body 19;

Claims (12)

A mouth portion (3) is provided at the upper end of the body portion (2) made of the synthetic resin tube body, and a bottom portion (8) which is closed at the lower end of the body portion (2) to form a leg portion is formed by insert molding. , A wide-mouth tube body container opened and closed by a lid (13) that is attached to and detached from the mouth tube portion (3), wherein the body portion (2) is made of a synthetic resin tube body, and the mouth tube portion (3 ) Has a cylindrical piece body tube (4) that is difficult to deform and has an outer diameter larger than that of the body part (2), and the bottom part (8) is difficult to deform and is more than the body part (2). A wide-mouth tube body container having a cylindrical piece portion (9) having a large outer diameter. The wide-mouth tube body container according to claim 1, wherein the synthetic resin tube body constituting the body portion (2) is made of a synthetic resin laminated sheet using aluminum foil. The wide-mouth tube body container according to claim 1, wherein the synthetic resin tube body constituting the body portion (2) is made of a transparent synthetic resin laminated sheet using a silica vapor deposition layer or a transparent barrier resin film. The wide-mouth tube body container according to any one of claims 1 to 3, wherein the mouth tube portion (3) and the bottom portion (8) are insert-molded on the outer surface of the body portion (2). The body tube (4) of the mouth tube portion (3) is formed with an upper half portion in which the mounting portion of the lid (13) is formed on the outer peripheral surface, and a bulging lower portion (7) having a large outer diameter. The wide-mouth tube body container according to any one of claims 1 to 4, comprising a lower half portion. The bottom part (8) which closes the lower end of the trunk part (2) is formed into a bottomed short cylinder piece comprising a cylinder piece part (9) and a flat bottom plate part (10), and the bottom plate part (10) An open portion (11) is provided, and the bottom film (12), which is an in-mold material, is positioned so as to cover the upper surface of the bottom plate portion (10), and the bottom film (12) is placed on the bottom plate portion (10). The wide-mouth tube body container according to any one of claims 1 to 5, wherein a peripheral end portion is closely welded and other portions are separable. The bottom part (8) for closing the lower end of the body part (2) is composed of a cylindrical piece part (9), a ring plate-like bottom plate part (10), and a bottom film (12) which is an in-mold material. The wide-mouth tube body container according to any one of claims 1 to 5, wherein the open portion (11) of the bottom plate portion (10) is closed with a film (12). The body part (2) is provided with an uneven wall part (2a) having a bent structure, and the uneven wall part (2a) is a part of the cylindrical wall of the tube body (18) formed in the body part (2). The wide-mouth tube body container according to any one of claims 1 to 7, which is formed by bending at the time of forming the container body (1). The wide-mouth tube body container according to claim 8, wherein the uneven wall portion (2a) is formed in a spiral shape. The wide-mouth tube body container according to claim 8, wherein the uneven wall portion (2a) is formed in a vertical strip shape. The wide-mouthed tube body container according to claim 8, wherein the concavo-convex wall portion (2a) is formed in a shape that allows the display to appear by the concavo-convex. The mold apparatus for insert-molding the container body (1) has a male mold (19) and a female mold (20) which is a pair of split molds, and sandwiches a tube body (18) which is an insert material. A concave / convex mold surface portion (21) for forming a concave / convex wall portion (2a) having a bent structure is formed on the tube body (18) on the mold surface portion of the male mold (19) and / or the female mold (20), After the tube body (18) is externally assembled to the mold surface portion of the male mold (19), the male mold (19) and the female mold (20) are clamped, and the concave and convex wall portion (2a) is clamped. A method for forming an uneven wall portion.

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