JP6960138B2 - Metal tube container and method of extracting contents from metal tube container - Google Patents

Description

The present invention relates to a metal tube container such as an aluminum tube container. The present invention also relates to a method for extracting contents from a metal tube container.

Aluminum tube containers are widely used as containers for ointments, creams, and gel-like pharmaceuticals because they are excellent in gas barrier property, light blocking property, and chemical resistance while being able to be manufactured at low cost. There is. High-priced drugs are housed in relatively small 5 g tube containers and 10 g tube containers, and the diameter of the body of the 5 g tube container is generally 12.5-15.0 mm, and the diameter of the body of the 10 g tube container. Is generally set to about 17 mm. A conical shoulder is connected to the upper end of the body, and a cylindrical mouth is connected to the upper end of the shoulder. A screw thread for screwing the cap is usually provided on the outer periphery of the mouth by rolling. The wall thickness of the mouth is relatively large in order to secure the formability of the screw thread and the rigidity for holding the cap after the screw thread is formed. For example, the wall thickness at the valley of the screw thread is 2 mm or more. In the case of a 5 g tube, the opening diameter of the mouth is about 4.5 mm, and the thread diameter of the screw thread is about 8 mm.

The wall thickness of the body is set to about 0.09 to 0.18 mm so that the contents can be discharged by crushing the body from both sides in the radial direction.

On the other hand, in the conventional aluminum tube container, the wall thickness of the shoulder portion is set to about 0.6 mm, which imparts rigidity to the extent that it is not easily deformed by the force of a human finger.

In such an aluminum tube container, the contents have conventionally remained near the inner surface of the shoulder portion, and in particular, in the case of expensive pharmaceutical products, there have been cases where complaints have been made. For example, in a pharmaceutical pharmacy, all the medicines to be sold filled in a 5g tube container may be extracted from the container and other medicines may be mixed with the medicines. Weigh accurately using a measuring instrument, but in the case of conventional tube containers, the mass of the extracted drug is often less than 5 g even if the pharmacist works hard to squeeze it, which is a complaint from the pharmacy industry to the drug manufacturer. There is. Therefore, in order to avoid complaints, the drug manufacturer may take measures to fill the 5 g tube container with the drug by about 5% more and fill it with 5.25 g, and the cost for dealing with such complaints is the drug. If the manufacturing cost per gram is 10 yen and the sales volume is 30 million, it will cost about 100 million yen, although it depends on the price and sales volume.

In order to deal with such a problem, in the tube container described in Patent Document 1 below, a thin-walled portion is formed in the body portion immediately below the shoulder portion, and the radius of the outer peripheral surface at the intersection of the shoulder portion and the body portion is reduced to 0. A metal tube container having a thickness of 3 mm to 2.0 mm and a wall thickness of a shoulder portion of 0.3 to 0.8 mm is disclosed. However, the tube container described in Patent Document 1 has a body thickness of 0.8 to 1.0 mm and a thin wall thickness of 40 to 80% (that is, 0.32 mm to 0) with respect to the body thickness. 8.8 mm), and in the case of a container with a small diameter such as a 5 g tube container, if the body is thick as described above, it cannot be crushed and deformed, so a large tube container with a body diameter exceeding at least 20 mm It is presumed that this is assumed.

Japanese Patent No. 3994415

According to the tube container described in Patent Document 1, it is possible to prevent cracks from occurring in the thin portion by providing a radius on the outer peripheral surface of the intersection of the shoulder portion and the body portion, and to reduce the wall thickness of the shoulder portion. As a result, when the contents are pushed out, the shoulder portion is curved and deformed, which prevents a concentrated load from being applied to a part of the thin-walled portion and further prevents the occurrence of cracks in the thin-walled portion. ing.

However, as described above, the technique described in Patent Document 1 assumes a large tube container having a body diameter of at least 20 mm, and is a small-diameter tube container such as a 5 g tube container or a 10 g tube container. Even if it was applied to, it was difficult to reduce the remaining amount of the contents. Further, the shoulder portion is generally formed in a conical shape with a central angle of about 120 °, but the smaller the body diameter, the larger the curvature in the circumferential direction of the shoulder portion, which increases the rigidity against bending. In the case of the large-diameter tube container described in Patent Document 1, it becomes easy to bend by setting the shoulder wall thickness to 0.3 to 0.8 mm, but in the case of a small-diameter tube container such as a 5 g tube container or a 10 g tube container. Is often difficult to bend within the above-mentioned wall thickness range, and further, the contents remain inside the shoulder portion simply by bending and deforming the shoulder portion.

Therefore, according to the present invention, in a metal tube container having a relatively small diameter such as a 5 g tube container or a 10 g tube container filled with contents such as an expensive pharmaceutical product, the remaining amount of the contents is reduced when the contents are squeezed out. The purpose is to reduce as much as possible.

The present invention has taken the following technical measures in order to solve the above problems.

That is, the metal tube container of the present invention has a cylindrical body that can be crushed in the radial direction to extrude the contents, a conical shoulder provided at the upper end of the body, and a shoulder portion. It is integrally provided with a cylindrical mouth portion provided at the upper end portion and having a diameter smaller than that of the body portion, the diameter of the outer peripheral surface of the body portion is 10.0 to 19.5 mm, and the wall thickness of the body portion is 0. The size is 09 to 0.18 mm, the central angle of the conical shape of the shoulder is 100 ° to 150 °, and the peripheral edge of the shoulder can be folded toward the body by the force of a human finger.

If the wall thickness of the body is thinner than 0.09 mm, the body is too soft and the handleability of the tube container in the content filling process becomes poor. On the other hand, if the thickness is thicker than 0.18 mm, the body is deformable (contents). (Removability) becomes worse. Further, when the central angle of the shoulder is less than 100 °, the curvature in the circumferential direction of the shoulder becomes large, the deformability of the shoulder deteriorates, and the axial length of the shoulder becomes large, so that the contents tend to remain in the shoulder. On the other hand, if the temperature exceeds 150 °, the shoulder shape becomes too flat and the material flow during impact extrusion molding becomes poor, making mass production by the impact extrusion method difficult. Further, more preferably, the peripheral edge portion of the shoulder portion can be folded into the body portion side in a state of being overlapped with the upper end side peripheral edge portion of the body portion in the vicinity of the peripheral edge portion.

According to the metal tube container of the present invention, the diameter of the outer peripheral surface of the body portion is 10.0 to 19.5 mm, the wall thickness of the body portion is 0.09 to 0.18 mm, and the outer peripheral surface and inner circumference of the shoulder portion. The peripheral edge of the shoulder of a small-diameter metal tube container having a conical central angle of 100 ° to 150 ° is deformed so as to fold toward the body instead of being curved. The space inside the tube can be crushed and the remaining contents can be extruded from the space, and the remaining amount of the contents in the small diameter tube container can be minimized.

The present invention can be particularly preferably carried out in a 5 g tube container, that is, a tube container having a body diameter of 12.5 to 15.0 mm, and a 10 g tube container (body diameter of 15.0 mm to 19. It can also be applied to a 5 mm tube container). More preferably, the shoulder central angle may be 115 ° to 125 °. Further, the present invention is particularly preferably applied to an aluminum tube container, and can also be applied to other metal tube containers having the same deformability as aluminum.

The applicant of the present application has diligently studied a structure in which the peripheral edge of the shoulder can be folded toward the body of a small-diameter aluminum tube container and can be molded by the same impact extrusion method as before. Tables 1 to 4 below show a 5 g aluminum tube container having a body diameter of 13.8 mm, a body thickness of 0.12 mm, a mouth outer diameter of 8 mm, a mouth inner diameter of 4.5 mm, and a shoulder central angle of 120 °. The shoulder wall thickness is uniformly molded to 0.2 mm (Table 1), 0.3 mm (Table 2), 0.4 mm (Table 3) and 0.5 mm (Table 4), and the creamy contents are placed inside. It is a measurement test result of the remaining content after filling and manually extracting the contents. A test was conducted on 12 samples for each wall thickness. Further, FIG. 1 is a graph showing the average remaining amount for each wall thickness.

As shown in Tables 1 to 4 and FIG. 1, as the shoulder wall thickness becomes thinner, the remaining amount of the contents decreases, and in particular, in the case of the above 5 g tube container, the shoulder wall thickness is 0.5 mm. In this case, as shown on the left side of FIG. 2, the peripheral edge of the shoulder could not be deformed so as to be folded toward the body, and even if it was strongly pushed with a finger, it was only slightly curved. When the shoulder wall thickness is 0.4 mm, the deformation of the shoulder peripheral edge changes from "curved" to "flexed", and when the shoulder wall thickness is 0.3 mm and 0.2 mm, FIG. 2 shows. As shown on the right side, the peripheral edge of the shoulder can be folded toward the back side. There was no significant difference between males and females, and it is considered that the skill of folding the shoulder periphery affects the remaining amount.

Based on the above results, when the shoulder is molded to have a substantially uniform wall thickness with a small-diameter metal tube container, the shoulder wall thickness is set to less than 0.3 mm so that the peripheral edge of the shoulder is made of a human finger. It is thought that it becomes possible to fold it toward the body side by force, crush the space inside the peripheral edge of the shoulder, and push out the remaining contents. It was also considered to mold the shoulder part to a uniform wall thickness of about 0.1 mm, but the material flow during impact extrusion molding was poor, and the axial force generated in the extrusion rod became excessive, causing the extrusion rod to bend. Since there is a possibility that problems may occur in the processing accuracy at the time of mass production and the durability of the molding machine, it is preferable that the shoulder thickness is 0.2 mm or more when molding the shoulder portion to a uniform wall thickness.

Furthermore, the inventors of the present application have conducted intensive studies on a structure that can be formed by an impact extrusion method while thinning the thinnest portion of the shoulder portion to about 0.1 mm. By making the thickness gradually thicker from the mouth side to the body side, even if the minimum wall thickness on the mouth side of the shoulder is reduced to 0.10 mm to 0.20 mm, the impact is impacted. It was found that molding is possible by the extrusion method. From the above test results, it has been found that if the wall thickness of the bent line portion is less than 0.3 mm, the shoulder peripheral portion can be folded toward the back surface side. It is considered that the maximum wall thickness of the shoulder portion on the body side should be 0.4 mm or less (preferably 0.3 mm or more). With this configuration, the peripheral edge of the shoulder can be folded toward the body by the force of a human finger.

Further, in another embodiment, a plurality of recesses extending in the radial direction are provided in the circumferential direction on the outer peripheral surface and / or the inner peripheral surface of the shoulder portion, and the wall thickness of the shoulder portion at the bottom of the recess is 0.10 mm to 0.20 mm. Therefore, the peripheral edge of the shoulder can be folded toward the body by the force of a human finger. That is, by preventing the thick portion of the shoulder portion (the portion not provided with the recess) from continuing for a predetermined angle or more in the circumferential direction, it is possible to prevent rigidity from being generated by the curved surface structure, thereby making the shoulder portion. In addition to being able to be folded into the back surface side, the fluidity of the material is ensured by the thick portion during impact extrusion molding, and mass production is possible by impact extrusion molding. The wall thickness of the thick portion of the shoulder portion is preferably 0.4 mm or less, but it may be about 0.6 mm, which is the same as the conventional one, depending on the circumferential width of each thick portion of the shoulder portion.

In yet another embodiment, have been made the thickness of the generatrix direction central portion of the shoulder portion is the thinnest in the generatrix of the outer peripheral surface and / or the inner peripheral surface of the shoulder portion is curved, the generatrix direction central portion The wall thickness of the shoulder portion is 0.10 mm to 0.20 mm, so that the peripheral edge portion of the shoulder portion can be folded into the body portion side by the force of a human finger. In this case, the wall thickness in the vicinity of the mouth side and the body side of the shoulder portion is preferably 0.4 mm or less, but may be about 0.6 mm.

A suitable method for extracting the contents from the metal tube container of the present invention has the following steps (1) to (4), whereby the inside of the front, rear, left and right sides of the peripheral edge of the shoulder. It is preferable to push the existing contents out of it.
(1) A step of making the vicinity of the upper end of the body substantially flat by crushing the vicinity of the upper end of the body from both sides in the radial direction (hereinafter, the direction of crushing the body is referred to as "front-back direction").
(2) A step of folding both side portions in the front-rear direction of the peripheral edge portion of the shoulder portion toward the body portion.
(3) A step of pushing the vicinity of the upper end portion of the body portion from one side portion in the front-rear direction toward the inner surface of the shoulder portion so that the portion near the upper end portion of the body portion is along the inner surface of the shoulder portion.
(4) A step of folding both left and right sides of the peripheral edge of the shoulder toward the body.

According to the present invention, in a metal tube container having a relatively small diameter such as a 5 g tube container or a 10 g tube container filled with contents such as an expensive pharmaceutical product, when the contents are squeezed out, the shoulder peripheral portion is squeezed. The remaining amount of the contents can be reduced as much as possible by folding it toward the body side.

It is a graph which shows the content extraction test result. It is a perspective view which shows the deformed state of each shoulder part which the shoulder part wall thickness is 0.5mm and 0.3mm. FIG. 5 is an enlarged cross-sectional view of a main part of an aluminum tube container according to a first embodiment of the present invention having a shoulder portion having a uniform wall thickness. It is an enlarged cross-sectional view of the main part which shows the state which one side part of the shoulder peripheral part of the tube container is folded toward the body side. It is a front view and the side view which shows the 1st step of the method of extracting the contents from the tube container. It is a perspective view which shows the 2nd step of the same method. It is a top view and bottom view which shows the 3rd step of the same method. It is a plan view which shows the 4th step of the same method, and the perspective view seen from the back side. It is an enlarged sectional view of the main part of the aluminum tube container which concerns on 2nd Embodiment of this invention. It is sectional drawing of the impact extrusion molding apparatus for molding the tube container. It is an enlarged sectional view of the main part of the aluminum tube container which concerns on 3rd Embodiment of this invention. It is an enlarged sectional view of the main part of the aluminum tube container which concerns on 4th Embodiment of this invention. It is an enlarged side view of the main part of the aluminum tube container which concerns on 5th Embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 3 shows a 5 g tube container 1 made of aluminum according to the first embodiment of the present invention, which is a cylindrical body 2 filled with contents such as a creamy preparation and a body. It integrally has a conical shoulder portion 3 connected to the upper end portion of 2 and a cylindrical mouth portion 4 connected to the upper end portion of the shoulder portion 3 and having a diameter smaller than that of the body portion 2. An easily breakable sealing film 5 is integrally molded in the mouth portion 4, and the mouth portion 4 is sealed by the sealing film 5. After the body portion 2 is filled with the contents, the hem portion (lower end portion) of the body portion is folded and the contents are sealed.

The tube container 1 of the present embodiment can be manufactured by a conventionally known impact extrusion method, and a screw thread can be formed by rolling on the outer periphery of the mouth portion 4 after impact extrusion molding.

The body portion 2 has a diameter of 12.5 to 15.0 mm on the outer peripheral surface, and the wall thickness of the body portion 2 is such that the body portion 2 can be crushed in the radial direction in order to push out the contents in the body portion 2 having such a small diameter. Is 0.09 to 0.18 mm, more preferably 0.15 mm or less. The central angle θ of the conical shape of the shoulder portion 3 is 100 ° to 150 °, more preferably 110 ° to 130 °, and more preferably 115 ° to 125 °.

In the present embodiment, the shoulder portion 3 is formed to have a substantially uniform wall thickness of less than 0.3 mm, and can preferably have a wall thickness of 0.2 mm or more, whereby a healthy adult can use the thumb. The shoulder portion 3 is provided with a deformability that allows the peripheral edge portion of the shoulder portion 3 to be folded toward the body side by the force of a finger such as the index finger or the index finger. Further, it is preferable not to provide R on the outer peripheral portion of the connecting portion between the mouth portion 4 and the shoulder portion 3, so that the mouth portion 4 can be deformed so as to be pushed toward the body portion 2 side. It is also easy to deform it so as to move it away from the part 2.

By thinning the wall thickness of the shoulder portion 3 of the 5 g tube container 1 to less than 0.3 mm, as shown in FIG. 4, any side portion in the circumferential direction of the peripheral portion of the shoulder portion 3 is set to the side thereof. It is possible to fold it toward the body side together with the upper end portion of the body portion in a state of being overlapped in the vicinity of the upper end portion of the body portion 2 connected to the portion. Further, when the mouth portion 4 is pushed toward the body portion 2 at the time of the folding, the central angle of the conical shape of the shoulder portion 3 is widened and the shoulder portion 3 is deformed slightly flatly, so that the back surface side of the shoulder portion peripheral portion is formed. It will be easier to fold into.

FIGS. 5 to 8 show a method of extracting the contents from the tube container of the present embodiment, and particularly show a method for extruding the contents of the space inside the shoulder portion from the method. In the illustrated example, for example, when a pharmacist extracts the contents, the hem of the body is opened to extract all the contents from the hem side at once, but the mouth is opened. When the contents are gradually extracted, the shoulder portion can be deformed in the same manner.

In order to push out the contents of the space inside the shoulder, as shown in FIG. 5, the vicinity of the upper end of the torso is crushed from both sides in the diametrical direction (hereinafter, the direction in which the torso is crushed is referred to as the "front-back direction"). Makes the vicinity of the upper end of the body substantially flat.

Next, as shown in FIG. 6, both side portions in the front-rear direction of the peripheral edge portion of the shoulder portion are folded toward the body portion.

Next, as shown in FIG. 7, the torso is bent with respect to the shoulder at the upper end so that the portion near the upper end of the torso is along the inner surface of the shoulder, and the vicinity of the upper end of the torso is moved back and forth. Push in from one side of the direction toward the inner surface of the shoulder.

Then, as shown in FIG. 8, the left and right side portions of the peripheral edge portion of the shoulder portion are folded toward the body portion.

As a result, the contents existing inside the front, rear, left, and right sides of the peripheral edge of the shoulder can be pushed out from there, and then the contents can be extracted by firmly crushing the body.

[Second Embodiment]
FIG. 9 shows an aluminum 5 g tube container 1 according to a second embodiment of the present invention, and the same configurations as those of the first embodiment are designated by the same reference numerals, detailed description thereof will be omitted, and different configurations will be described. ..

In the present embodiment, the cross-sectional shape of the shoulder portion 3 is formed in a tapered shape that gradually becomes thicker from the mouth portion side to the body portion side. In the illustrated example, the minimum wall thickness on the mouth side of the shoulder portion 3 is 0.09 mm, the maximum wall thickness on the body side is 0.4 mm, and one side of the peripheral portion of the shoulder portion 3 in the circumferential direction is folded. The wall thickness of the folding line portion is set to about 0.3 mm. The minimum wall thickness on the mouth side can be appropriately designed in the range of 0.10 to 0.20 mm, and the maximum wall thickness on the body side is preferably designed in the range of 0.2 to 0.4 mm.

The tube container 1 of the present embodiment can be molded by the impact extrusion molding apparatus shown in FIG. The molding apparatus includes a press die mainly composed of a die base 10 and a die ring 11, a punch having a punch head 13 attached to the tip of a punch shaft 12, and an ejector pin 14. The outer surface shape of the tube container is mainly defined by the press die, and the inner surface shape of the tube container is mainly defined by the punch head 13.

In order to make the cross-sectional shape of the shoulder portion 3 tapered as described above, the central angle of the shoulder inner surface molded portion of the punch head 13 is slightly smaller than the central angle of the shoulder outer surface molded portion of the die base 10. As a result, the tube container is impact-molded so that the central angle of the outer peripheral surface of the shoulder portion 3 is about 120 ° and the central angle of the inner peripheral surface of the shoulder portion 3 is about 113 °.

By providing the minimum wall thickness portion of the shoulder portion 3 at the hem portion of the mouth portion 4 in this way, the material fluidity when the slag installed in the mouth portion forming region is impact-extruded by the punch head 13 is ensured. , While the structure is suitable for mass production, the folding deformability of the shoulder portion 3 can be ensured.

[Third Embodiment]
FIG. 11 shows an aluminum tube container according to a third embodiment of the present invention. In the present embodiment, the thickness of the central portion of the shoulder portion in the generatrix direction is the largest due to the curvature of the generatrix ( ridge line ) of the outer peripheral surface of the shoulder portion. It is thin, and the thickness of the shoulder at the center in the direction of the generatrix is 0.10 mm, and the thickness of the shoulder near the mouth and body is about 0.4 mm. The wall thickness of the shoulder portion at the center in the bus direction can be appropriately designed in the range of 0.10 mm to 0.20 mm.

[Fourth Embodiment]
FIG. 12 shows an aluminum tube container according to a fourth embodiment of the present invention. In the present embodiment, the thickness of the central portion of the shoulder portion in the generatrix direction is increased by bending the generatrix ( ridge line ) of the inner peripheral surface of the shoulder portion. It is the thinnest, and the thickness of the shoulder at the center in the bus direction is 0.10 mm, and the thickness of the shoulder near the mouth and body is about 0.4 mm. The wall thickness of the shoulder portion at the center in the bus direction can be appropriately designed in the range of 0.10 mm to 0.20 mm.

It is also possible to bend both the generatrix of the inner peripheral surface and the outer peripheral surface of the shoulder portion.

[Fifth Embodiment]
FIG. 13 shows the aluminum tube container 1 according to the fifth embodiment of the present invention. In the present embodiment, a plurality of recesses 6 extending in the radial direction are provided on the outer peripheral surface of the shoulder portion 3 in the circumferential direction. .. The recess 6 of the illustrated embodiment is formed in a gentle valley shape. The wall thickness d1 of the shoulder portion 3 of the thinnest portion at the bottom of the recess 6 is 0.10 mm to 0.20 mm, and the wall thickness d2 of the shoulder portion 3 of the thickest portion without the recess 6 is 0.2. It can be ~ 0.6 mm, more preferably 0.3 ~ 0.4 mm.

The number of recesses 6 and the width of each recess 6 can be appropriately designed within a range in which the peripheral edge of the shoulder portion 3 can be folded toward the back surface and deformed. Further, the recess may be provided on the inner peripheral surface of the shoulder portion 3, or may be provided on both the outer peripheral surface and the inner peripheral surface.

The present invention is not limited to the above embodiment, and the design can be changed as appropriate. For example, as another example of how to fold the shoulder peripheral portion, the body portion of each of the three side portions in the circumferential direction of the shoulder peripheral portion is formed so that the outer edge shape of the shoulder portion is substantially triangular when viewed from the axial direction. You can also fold it to the side.

Claims (5)

A cylindrical body that can be crushed in the radial direction to push out the contents, a conical shoulder provided at the upper end of the body, and a more than the body provided at the upper end of the shoulder. It has a small-diameter cylindrical mouth integrally, the diameter of the outer peripheral surface of the body is 10.0 to 19.5 mm, the wall thickness of the body is 0.09 to 0.18 mm, and the cone of the shoulder. A method of extracting the contents from a metal tube container having a central angle of 100 ° to 150 ° and a structure in which the peripheral edge of the shoulder can be folded toward the body by the force of a human finger. ,
Crush the vicinity of the upper end portion of the barrel diameter opposite sides (hereinafter, a direction to crush the body portion of "front-rear direction".) Substantially a flat upper end portion vicinity of the barrel by,
Next, look write folding rear direction both sides of the peripheral portion of the shoulder portion to the body portion side,
Next, Push toward the upper end vicinity of the body portion as the upper end portion in the vicinity of the body portion along the inner surface of the shoulder portion from the longitudinal direction of the one side to the shoulder inner surface,
Then, the left and right side portions seen write folding body portion side of the peripheral portion of the shoulder portion,
A method of extracting the contents from a metal tube container, which is characterized in that the contents existing inside the front, rear, left, and right sides of the peripheral edge of the shoulder are extruded from the contents. In the method for extracting the contents from the metal tube container according to claim 1, the metal tube container has a substantially uniform wall thickness of less than 0.3 mm so that the peripheral portion of the shoulder portion is formed. A method of extracting contents from a metal tube container that is configured to be foldable toward the body side by the force of a human finger. A method of extracting the contents from a metal tube container according to claim 1, wherein the metallic tube container, the sectional shape of the shoulder portion, the thickness gradually according reaching the body portion side from the inlet side The peripheral portion of the shoulder portion is formed into a tapered shape to be a meat, and the minimum wall thickness on the mouth side is 0.10 mm to 0.20 mm and the maximum wall thickness on the body side is 0.4 mm or less. A method of extracting the contents from a metal tube container, which is configured to be foldable toward the body side by the force of a human finger. In the method for extracting the contents from the metal tube container according to claim 1, the metal tube container has a plurality of concave portions extending in the radial direction on the outer peripheral surface and / or the inner peripheral surface of the shoulder portion in the circumferential direction. provided by the wall thickness of the shoulder portion in the bottom of the recess and 0.10Mm～0.20Mm, foldable so configured on the barrel side peripheral edge of the shoulder portion by the force of a human finger How to extract the contents from a metal tube container . A method of extracting the contents from a metal tube container according to claim 1, wherein the metallic tube container, the generatrix of the shoulder portion by the generatrix of the outer peripheral surface and / or the inner peripheral surface of the shoulder portion is curved have been made the thickness direction central portion and the thinnest wall thickness of the shoulder portion of the generatrix direction central portion is a 0.10Mm～0.20Mm, thereby the person's finger the periphery of the shoulder portion A method of extracting contents from a metal tube container that is configured to be foldable toward the body side by force.

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