JP2013215927A - Device for manufacturing insulated container and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for manufacturing an insulated container which is positioned so that a relative angle between a side seam of a container body and a side seam of a sleeve arranged on an outer circumference side of the container body can be set appropriately.SOLUTION: A device for manufacturing an insulated container includes a side seam positioning part 14 which detects a side seam 208 of a container body 200 and determines an angular position by a detected side seam and a combination part which combines the container body and sleeve by putting a sleeve on an outer circumference side of the container body while leaving a determined angular position of the side seam as it is. In combination by the combination part, the respective angular positions of the side seam of the container body and the side seam of the sleeve do not coincide with each other.

Description

  The present invention relates to a manufacturing apparatus and a manufacturing method for a heat insulating container including a cylindrical container body having a side seam and a sleeve having a side seam and disposed on the outer peripheral side of the container body.

  Conventionally, as described in Patent Document 1, the container body is used as an insulated container suitable for cooking by pouring hot water or the like, or being put in a microwave oven and cooking food by electromagnetic waves. And a heat insulating container including a sleeve attached to the outer periphery of the container body is known.

  And what was described in patent document 2 is known as a manufacturing apparatus of such a heat insulation container. In this manufacturing apparatus, a plate-shaped blank is wound into a cylindrical shape, and both ends thereof are overlapped and bonded to form a side seam, thereby forming a sleeve and forming a curl at the end of the sleeve, and a container A combination part for combining a sleeve on the outer periphery of the main body, and an adhesive application device for applying an adhesive to the body part of the container main body and an outer periphery of the container main body to which the adhesive is applied. And a sleeve delivery device for covering the sleeve formed by the sleeve forming portion.

Japanese Patent No. 3291262 Japanese Patent No. 327412

  In such a heat insulating container, since each of the container body and the sleeve has side seams, when the container body and the sleeve are combined, the circumferential positions of the side seams coincide with each other and the side seams are side by side. Seams may overlap. Side seams are thicker than parts other than side seams, so they may interfere with each other, and the curl formed on the sleeve may be crushed or twisted. There's a problem.

  The present invention has been made in view of such a problem, and is a heat insulating container positioned so that the relative angular position between the side seam of the container main body and the side seam of the sleeve disposed on the outer peripheral side of the container main body is appropriate. It is an object of the present invention to provide a manufacturing apparatus and a manufacturing method.

In order to achieve the above object, an invention according to claim 1 is a heat insulating container comprising: a cylindrical container body having a side seam; and a sleeve having a side seam and disposed on the outer peripheral side of the container body. In manufacturing equipment,
A side seam positioning unit that detects a side seam of at least one of the container body and the sleeve, and positions an angular position of the detected side seam;
In a state where the angular position of the side seam is maintained, a sleeve is put on the outer peripheral side of the container body, and a coalesced part for combining the two is provided.
The side seam positioning portion is positioned so that the side seam is in a predetermined angular position range at the time of combining by the combined portion, and at the time of combining, the respective angular positions of the side seam of the container body and the side seam of the sleeve Is not matched.

  According to a second aspect of the present invention, in the first aspect, the side seam positioning portion is configured so that the angular position of the side seam of the container main body and the sleeve are centered around the central axis of the heat insulating container when the combined portion is combined. The detected side seam is positioned so that the angular position of the side seam is shifted by 90 to 270 degrees.

  According to a third aspect of the present invention, in the second aspect, the side seam positioning portion is configured so that the angular position of the side seam of the container body and the sleeve are centered around the central axis of the heat insulating container when the union is performed by the union unit. The detected side seam is positioned so that the angular position of the side seam is shifted from 90 degrees to 150 degrees, or from 210 degrees to 270 degrees.

  The invention according to claim 4 is the one according to any one of claims 1 to 3, wherein the container body or the sleeve is moved to the united portion while maintaining the angular position of the side seam positioned by the side seam positioning unit. It is further characterized by further comprising a positioning maintaining section.

  According to a fifth aspect of the present invention, the positioning maintaining unit according to the fourth aspect of the present invention is characterized in that the positioning maintenance unit moves the container main body or the sleeve from the side seam positioning unit to the combined unit while rotating the container main body or the sleeve by a known angle. And

  The invention according to claim 6 is the one according to claim 5, wherein the positioning maintaining portion includes a contact ring provided on a holding body for holding the container main body or the sleeve, and a conveying surface on which the contact ring can come into contact. The container body or the sleeve is rotated by a known angle by rolling the holding body by contact between the contact ring and the conveying surface.

  The invention according to claim 7 is the one according to any one of claims 1 to 6, wherein the side seam positioning portion is a detecting means for detecting at least one side seam of the container main body and the sleeve; Drive means for rotating at least one of the container main body and the sleeve, and control means for controlling the drive means so that the side seam is at a predetermined angular position based on a detection signal from the detection means. .

The invention according to claim 8 is a method for producing a heat-insulating container, comprising: a cylindrical container body having a side seam; and a sleeve having a side seam and disposed on the outer peripheral side of the container body.
Detecting the side seam of at least one of the container body and the sleeve;
Position the angular position of the detected side seam,
In the state of maintaining the positioning of the side seam detected and positioned, the sleeve body is put on the outer peripheral side of the container body, and both are combined,
The positioning is performed so that the side seam is in a predetermined angular position range at the time of merging, so that the angular position of the side seam of the container main body and the side seam of the sleeve do not coincide at the time of merging. It is characterized by that.

  The invention according to claim 9 is the method according to claim 8, wherein the angle position of the side seam of the container main body and the angle position of the side seam of the sleeve are 90 degrees to about the central axis of the heat insulating container when combined. The detected side seam is positioned so as to be displaced by 270 degrees.

  According to a tenth aspect of the present invention, in the method according to the ninth aspect, the angle position of the side seam of the container body and the angle position of the side seam of the sleeve are 90 degrees to about the central axis of the heat insulating container when combined. The detected side seam is positioned so as to be offset by 150 degrees, or 210 degrees to 270 degrees.

  According to the present invention, the relative angular position between the side seam of the container main body and the side seam of the sleeve disposed on the outer peripheral side of the container main body is within a predetermined range in which the side seams do not overlap each other at the time of combination. The angular position of at least one side seam of the container body and the sleeve is positioned. Since the container main body and the sleeve are united with this positioning maintained, the angular positions of the side seam of the container main body and the side seam of the sleeve can be prevented from matching. For this reason, it is possible to prevent a problem that the curl formed on the sleeve is crushed or drowned at the time of uniting.

  Further, the angle position of the side seam of the container main body is 90 degrees to 270 degrees, more preferably 90 degrees to 150 degrees or 210 degrees to 270 degrees from the angle position of the side seam of the sleeve around the central axis of the heat insulating container. By deviating, it is possible to make the strength against the user's clamping, that is, the so-called clamping pressure strength when the user grips the container, uniform over the entire circumference in the circumferential direction of the container.

1 is an overall plan view of a manufacturing apparatus according to the present invention. (A) is sectional drawing showing an example of the heat insulation container manufactured with the manufacturing apparatus by this invention, (b) is sectional drawing of a container main body, (c) is sectional drawing of a sleeve. It is a top view showing a mandrel. It is a side view showing a side seam positioning part. It is a figure showing a side seam positioning part. FIG. 6 is an enlarged view of a portion 6 in FIG. 5 for explaining side seam level difference detection by the side seam positioning portion. It is a fragmentary sectional view showing a positioning maintenance part. It is a top view showing a positioning maintenance part and a united part. It is explanatory drawing for demonstrating the positional relationship of the side seam of a container main body, and the side seam of a sleeve. It is a partial expanded sectional view for demonstrating the state which a container main body and a sleeve unite | combine, (a) shows the Example of this invention, (b) shows a comparative example. It is explanatory drawing showing the relative angular positional relationship of each side seam of a container main body and a sleeve.

  A manufacturing apparatus according to the present invention will be described below with reference to the drawings.

  The manufacturing apparatus 1 shown in FIG. 1 manufactures the heat insulation container 100 by attaching a sleeve to the outer periphery of the container main body, and can also serve as a manufacturing apparatus for at least a part of the container main body and / or the sleeve itself.

  As shown in FIG. 2, the heat insulating container 100 includes a container body 200 and a sleeve 300. The container body 200 includes a bottom part 201 and a body part 203 formed in a tapered shape whose outer diameter and inner diameter are gradually reduced from the upper end toward the bottom part 201, and is formed in a substantially truncated cone shape as a whole. The upper end is opened and an opening 202 is defined. A curl 204 is formed at the upper end of the body 203 around the opening 202 toward the outside of the body. A bent portion 205 bent downward is formed on the outer peripheral edge of the bottom portion 201. The bent portion 205 is bonded to the inner peripheral surface of the barrel portion 203, and the lower end of the barrel portion 203 is a bent portion of the bottom portion 201. The yarn bottom 206 is formed by being folded back inwardly so as to cover 205 or arbitrarily below the bent portion 205 of the bottom 201.

  The body portion 203 is configured by forming a side seam 208 by winding a fan-shaped blank into a cylindrical shape and overlapping and bonding both ends thereof (see FIG. 9).

  The sleeve 300 attached to the outer side of the body part 203 is formed in a tapered shape in which the outer diameter and the inner diameter are gradually reduced from the upper opening 301 toward the lower opening 302, similarly to the body part 203 of the container body 200. It is formed in a substantially truncated cone shape as a whole. Further, a curl 303 is formed at the lower end of the sleeve 300 toward the inside of the sleeve.

  The sleeve 300 is configured by forming a side seam 308 by winding a fan-shaped blank in a cylindrical shape and overlapping and bonding both ends thereof (see FIG. 9).

  As shown in FIG. 1, the manufacturing apparatus 1 supplies a container main body 200 and also positions a container main body 200, a container main body supply / positioning apparatus 10, a sleeve forming apparatus 30 that forms a sleeve 300, and a sleeve transfer apparatus. 50.

  The container body supply / positioning device 10 includes a turntable 11 and six mandrels 12 extending radially from the turntable 11. The mandrel 12 is spaced apart from the turntable 11 at an angle of 60 degrees in the circumferential direction. The turntable 11 rotates intermittently by 60 degrees in the direction of the arrow in FIG. 1, and each mandrel 12 moves sequentially from the positions P1 to P6 shown in FIG. 1, stays at these positions for a predetermined time, and is determined. Work to be done.

  As shown in FIG. 3, the mandrel 12 has a generally truncated cone shape similar to that of the container body 200, and the container body 200 is held on the outer peripheral portion 12a by suction or the like. Further, the outer peripheral portion 12a of the mandrel 12 is rotatable with respect to the shaft portion 12b of the mandrel 12, and the outer peripheral portion 12a of the mandrel 12 is made of an elastic material such as rubber on the center side of the turntable 11. The contact ring 13 formed by is fitted. In a state where the container main body 200 is held, the contact ring 13 is closer to the center of the turntable 11 than the container main body 200 and protrudes in the outer diameter direction from the curl 204 of the container main body 200. (See FIG. 4).

  Although the operation at each of the positions P1 to P6 is arbitrary, for example, the container body 200 is supplied to the mandrel 12 located at the position P1 from an upstream supply device (not shown). In this example, the container body 200 that has already been formed into a truncated cone shape is supplied from the upstream supply device. Further, at the position P2, a Peter line indicating a line of entry is formed on the trunk of the container body 200, and at the position P3, an adhesive for bonding the sleeve is applied to the outer peripheral surface of the container body 200, The side seam 208 of the container main body 200 is positioned using the side seam positioning portion 14 described later, and the position P4 becomes a combined portion. The sleeve 300 supplied from the sleeve transfer device 50 described later is combined with the container main body 200, and the position In P5, the insulated container 100 after the combination is inspected, and the insulated container 100 completed at the position P6 is discharged.

  Here, the positioning and positioning maintenance of the side seam 208 of the container main body 200 performed at the position P3 and the position P4 and the combination of the container main body 200 and the sleeve 300 will be described in detail.

  A side seam positioning portion 14 is provided below the position P3. As shown in FIGS. 4 and 5, the side seam positioning unit 14 includes a servo motor 16 as a driving unit, a rotation transmission mechanism 17, a rotating plate 18, a side seam detection sensor 19 as a detection unit, and a control unit 20. Each is installed on a fixed surface.

  When the mandrel 12 that holds the container main body 200 stops at the position P <b> 3, the rotating plate 18 contacts the contact ring 13. The rotation of the servo motor 16 is transmitted to the rotating plate 18 via the rotation transmission mechanism 17, and the contact ring 13 is rotated with the rotation of the rotating plate 18, and as a result, the outer periphery of the mandrel 12 is rotated. The portion 12a and the container body 200 rotate at least 360 degrees around the central axis of the shaft portion 12b and the container body 200.

  By this rotation, an adhesive can be applied to the outer peripheral surface of the container body 12 as necessary, and the position of the side seam 208 of the container body 200 is detected by the side seam detection sensor 19.

  The side seam detection sensor 19 can be composed of a laser sensor or the like, and is positioned obliquely with respect to the container body 12 to detect the step of the side seam 208 of the container body 200 as shown in FIG. Can be done. For example, when the side seam 208 reaches a predetermined angular position due to the rotation of the container body 200, the side seam 208 can be detected by receiving a reflected wave from the step with a laser sensor.

  When the side seam detection sensor 19 detects the side seam 208, the detection signal is sent to the control unit 20. The control unit 20 controls the servo motor 16 so that the side seam 208 is always set to a predetermined angular position after the rotation of the container main body 200 from the detected angular position of the side seam.

  Next, between the position P3 and the position P4, as shown in FIG.7 and FIG.8, the conveyance surface 22 extended in circular arc shape along the movement path | route of the container main body 200 is fixedly installed. The conveying surface 22 is arranged so that the contact ring 13 of the mandrel 12 is in contact with the conveying surface 22, and the positioning maintaining unit 24 is configured by the conveying surface 22 and the contact ring 13.

  Due to the contact between the contact ring 13 and the transport surface 22, the outer peripheral portion 12 a of the mandrel 12 accompanying the rotation of the turntable 11 rolls on the transport surface 22, and the container body 200 rotates around its central axis together with the outer peripheral portion 12 a. . Here, due to the frictional engagement force between the contact ring 13 and the conveyance surface 22, the mandrel 12 can roll on the conveyance surface 22 with almost no slip, and the moving distance on the conveyance surface 22 is known. Therefore, the positioning of the side seam 208 of the container body 200 positioned at the position P3 is maintained, and the angular position at the position P4 is determined according to the distance from P3 to P4. Thus, at the position P4, the angular position of the side seam 208 of the container body 200 is determined within the range of the desired angular position.

  Next, the sleeve forming apparatus 30 includes a turntable 31 and eight holders 32 extending radially from the turntable 31. The holder 32 is spaced from the turntable 31 at an angle of 45 degrees in the circumferential direction. The turntable 31 rotates intermittently by 45 degrees, and each holder 32 sequentially moves through the positions P31 to P38 shown in FIG. 1, stays at these positions for a predetermined time, and performs a predetermined work. Yes. The intermittent rotation of the turntable 31 is driven by a driving force from the same driving source so as to be interlocked with the turntable 11.

  The operation at each of the positions P31 to P38 is arbitrary. For example, at the position P31, a sleeve blank is wound around the mandrel, and the end portions are bonded to form a side seam 308. A curl 303 is formed, and the sleeve 300 is transferred to the sleeve transfer device 50 at the position P37.

  In this sleeve forming apparatus 30, after the side seam 308 is formed, the angular position of the sleeve 300 is maintained, and preferably, the side seam 308 is pressed to seal the side seam 308, and as a result, The position of the side seam 308 is always determined at a certain angular position, for example, the upper side.

  Next, the sleeve transfer device 50 includes a turntable 51 and four holders 52 extending radially from the turntable 51. The holder 52 is spaced from the turntable 51 at an angle of 90 degrees in the circumferential direction. The turntable 51 rotates intermittently by 90 degrees, and each holder 52 sequentially moves between positions P51 to P54 shown in FIG. 1, and stays at these positions for a predetermined time. The intermittent rotation of the turntable 51 is driven by a driving force from the same driving source so as to be linked to the turntables 11 and 31.

  At the position P51, the holder 52 receives the sleeve 300 from the sleeve forming device 30, and at the position P53, the sleeve 300 is pushed out from the holder 52 by the unillustrated pushing means and is held by the mandrel 12 at the position P4. 200 and the two are combined (FIG. 8). At this time, the container main body 200 and the sleeve 300 are integrated by press-fitting or bonding, whereby the heat insulating container 100 is completed.

  As described above, the angular position of the side seam 308 formed at the position P31 is continuously maintained while being conveyed via the sleeve forming device 30 and the sleeve transfer device 50, and the sleeve at the time of uniting is maintained. The angular position of the 300 side seams 308 is always a constant angular position. Further, the angle position of the side seam 208 of the container main body 200 is determined within the range of the desired angle position at the position P4 by the side seam positioning portion 14 and the positioning maintaining portion 24 described above. From this, when the container main body 200 and the sleeve 300 are combined at the position P4 that becomes the combined portion, the relative angular position between the side seam 208 of the container main body 200 and the side seam 308 of the sleeve 300 is controlled to a desired relationship. Can do.

  Next, a desired relative angular position between the side seam 208 and the side seam 308 of the sleeve 300 will be described with reference to FIG.

  Assuming that the side seam 308 of the sleeve 300 is at an angular position of 0 degree with respect to the central axis passing through the bottom surface of the heat insulating container 100, the side seam 208, 308 should not overlap.

  Accordingly, it is possible to prevent a problem that the curl 303 formed on the sleeve 300 is crushed or drowned when combined. In particular, even when the curl 303 of the sleeve 300 is loosely formed, it is possible to prevent the occurrence of the above-described problems. Further, it is possible to prevent the adhesive from protruding and the side seam from peeling off at the portion where the side seams 208 and 308 are in direct contact with each other and overlap.

  As shown in FIGS. 2 and 10, a bent portion 205 bent downward from the outer peripheral edge of the bottom portion 201 of the container main body 200 is bonded to the inner peripheral surface of the barrel portion 203, and the lower end of the barrel portion 203 is upper inside. When the side seam 208 at the yarn bottom 206 is bonded so as to cover the bent portion 205, the thickness of one material of the bottom 201 is added to at least the thickness of the material of the trunk 203. Will have. Also in one sleeve 300, the thickness of the vicinity of the side seam 308 is the thickness of two pieces of the material of the sleeve 300. Therefore, as shown in FIG. When the container main body 200 and the sleeve 300 are combined, the curl 303 formed on the sleeve 300 may be deformed by interfering with the thread bottom 206 of the container main body 200, resulting in a problem that the curl 303 may be crushed or twisted. .

  On the other hand, according to the present invention, such overlapping can be reliably prevented. Therefore, as shown in FIG. 10A, the curl 303 is not interfered with the yarn bottom 206 at the time of coalescence. The deformation of 303 can be prevented, and the coalescing work can be performed smoothly.

  More preferably, when the side seam 308 of the sleeve 300 is assumed to be at an angular position of 0 degrees from the central axis that penetrates the bottom surface of the heat insulating container 100, the angular position of the side seam 208 of the container body 200 is 90 degrees to 270 degrees when combined. It is preferable to control so that it is located in the range. As a result, the side seam 208 of the container body 200 and the side seam 308 of the sleeve 300 are distributed to a certain extent in the circumferential direction, so that the strength of the user when gripping the container, that is, the so-called pinching strength Can be made uniform over the entire circumference in the circumferential direction of the container.

  Even more preferably, as shown in FIG. 11, when the side seam 308 of the sleeve 300 is assumed to be at an angular position of 0 degrees from the central axis passing through the bottom surface of the heat insulating container 100, 90 degrees to 150 degrees or 210 degrees when combined. It is preferable to control to be in the range of ˜270 degrees, particularly preferably 120 degrees or 240 degrees. For example, when the angle position of the side seam of the container body is at a position opposite to the angle position of the side seam of the sleeve, that is, at a position shifted by 180 degrees, if the user clamps these side seams, the pinching strength However, if a place shifted by 90 degrees from the side seam is held, the pinching strength is considerably reduced, and there is a risk that the deviation in the circumferential direction of the pinching strength will increase. Therefore, by making the difference in the angular position in the range of 90 ° to 150 ° or 210 ° to 270 °, such a deviation of the pinching strength is reduced, and the pinching strength is set to the entire circumference of the heat insulating container 100 in the circumferential direction. On the other hand, it can be made more uniform.

  Even more preferably, when the rotation direction when the container main body 200 moves from the position P3 to P4 is considered, the angle of the side seam 308 of the sleeve 300 when the container main body 200 rotates too much in the rotation direction. The angular position range may be a direction away from the position.

  In the above embodiment, prior to the combination of the container main body 200 and the sleeve 300, the angular position of the side seam 208 of the container main body 200 is detected to position the side seam 208, and the side seam of the sleeve 300 is determined. Although the angular position of 308 is fixed, the present invention is not limited to this, and the angular position of the side seam 308 of the sleeve 300 may be detected to position the side seam 308, or the container body 200 and the sleeve 300 may be positioned. For each of these, the angular position of the side seam may be detected and positioned.

1 Manufacturing equipment 12 Mandrel (holding body)
13 Contact ring 14 Side seam positioning part 16 Servo motor (drive means)
19 Side seam detection sensor (detection means)
20 Control unit (control means)
22 Transport surface 24 Positioning / maintenance unit 100 Thermal insulation container 200 Container body 208 Side seam 300 Sleeve 308 Side seam P4 Position (union part)

Claims (10)

In a manufacturing apparatus for a heat-insulating container comprising a cylindrical container body having a side seam and a sleeve having a side seam and disposed on the outer peripheral side of the container body,
A side seam positioning unit that detects a side seam of at least one of the container body and the sleeve, and positions an angular position of the detected side seam;
In a state where the angular position of the side seam is maintained, a sleeve is put on the outer peripheral side of the container body, and a coalesced part for combining the two is provided.
The side seam positioning portion is positioned so that the side seam is in a predetermined angular position range at the time of combining by the combined portion, and at the time of combining, the respective angular positions of the side seam of the container body and the side seam of the sleeve The manufacturing apparatus of the heat insulation container characterized by making it not correspond.   The side seam positioning portion is configured so that the angle position of the side seam of the container main body and the angle position of the side seam of the sleeve are shifted from 90 degrees to 270 degrees around the central axis of the heat insulating container when combined by the combined portion. The apparatus for manufacturing a heat insulating container according to claim 1, wherein the detected side seam is positioned.   The side seam positioning portion has an angle position of the side seam of the container main body and an angle position of the side seam of the sleeve of 90 degrees to 150 degrees or 210 around the central axis of the heat insulating container at the time of combining by the combining section. The apparatus for manufacturing a heat insulating container according to claim 2, wherein the detected side seam is positioned so as to deviate from about 270 degrees.   The positioning maintenance part which moves a container main body or a sleeve to a united part, maintaining the angular position of the side seam positioned by the said side seam positioning part is further provided. The manufacturing apparatus of the heat insulation container as described in 2.   The said positioning maintenance part moves the container main body or a sleeve from the said side seam positioning part to a united part, rotating a known angle, The manufacturing apparatus of the heat insulation container of Claim 4 characterized by the above-mentioned.   The positioning maintaining unit includes a contact ring provided on a holding body that holds the container main body or the sleeve, and a conveyance surface that can come into contact with the contact ring, and the holding body is rotated by contact between the contact ring and the conveyance surface. 6. The heat insulating container manufacturing apparatus according to claim 5, wherein the container main body or the sleeve is rotated by a known angle.   The side seam positioning unit is based on a detection means for detecting at least one of the side seam of the container main body and the sleeve, a driving means for rotating at least one of the container main body and the sleeve, and a detection signal by the detection means. The heat insulation container manufacturing apparatus according to any one of claims 1 to 6, further comprising control means for controlling the drive means so that the side seam is at a predetermined angular position. In a method for manufacturing a heat-insulating container comprising a cylindrical container body having a side seam, and a sleeve having a side seam and disposed on the outer peripheral side of the container body,
Detecting the side seam of at least one of the container body and the sleeve;
Position the angular position of the detected side seam,
In the state of maintaining the positioning of the side seam detected and positioned, the sleeve body is put on the outer peripheral side of the container body, and both are combined,
The positioning is performed so that the side seam is in a predetermined angular position range at the time of merging, so that the angular position of the side seam of the container main body and the side seam of the sleeve do not coincide at the time of merging. The manufacturing method of the heat insulation container characterized by the above-mentioned.   The detected side seam is positioned so that the angular position of the side seam of the container main body and the angular position of the side seam of the sleeve are deviated from 90 degrees to 270 degrees around the central axis of the heat insulating container when combined. The manufacturing method of the heat insulation container of 8.   At the time of coalescence, the angular position of the side seam of the container main body and the angular position of the side seam of the sleeve were detected so as to be shifted from 90 degrees to 150 degrees, or from 210 degrees to 270 degrees around the central axis of the heat insulating container. The manufacturing method of the heat insulation container of Claim 9 which positions a side seam.

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