JP6520152B2 - Auto bottom container - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a container (auto bottom container) of a type in which a bottom portion is automatically provided when raising from a folded state.

  Patent Document 1 describes a carton which is stored or transported in a folded state and which is wound up at the time of use. The bottom plate connected to the lower end of the container body is folded along the crease and unfolded when being raised. In use, it will be a carton with a barrel and a bottom plate.

JP-A-9-118328

  The carton described in Patent Document 1 holds the bottoming state by curving the bottom plate inward or outward so as to be in a stretched state. There is no particular hindrance if the contents to be stored are relatively light ones such as fried potatoes, but if relatively heavy ones, for example, liquid ones, are stored, the strength of the bottom plate may be insufficient. Also, fixing of the bottom plate is uncertain.

  An object of the present invention is to provide an automatic bottom container provided with a robust bottom portion.

  It is an object of the present invention to provide an auto bottom container which is hard to return to the original folded state from the raised state, and therefore can stably maintain the raised state.

  In the auto bottom container according to the first aspect of the present invention, the engaged portion and the fold line are formed, the bottom panel foldable along the fold line, and the rim of the bottom panel rise, and the bottom panel folds along the fold line The body is closed when the opening is closed and the opening is formed when the bottom panel is unfolded and unfolded, the lower part of at least one of both sides of the body, the folding And an inwardly-extending collar which engages with the engaged portion of the bottom panel which is unfolded. The two sides of the body mean the portions that become the two sides when folded.

  A crease is formed in the bottom panel, along which the bottom panel can be folded. The trunk rises from the periphery of the bottom panel. The opening of the barrel is closed when the bottom panel is folded along the folds, and an opening is formed in the barrel when the bottom panel is unfolded and unfolded. That is, by folding the bottom panel along the fold line, it is possible to overlap the surface of one side of the body with the side of the other side of the body and eliminate the opening (collapse the internal space, make it flat). The bottom panel may be folded inside along the crease by folding the inside of the body (in a direction in which it is sandwiched between one side and the other side of the side) or by valley folding along the side. It may be folded in a direction in which the lower part of the trunk can be seen to protrude outward.

  When winding up, push the sides of the flat body towards each other. One side and the other side of the body in the folded state are moved away from each other by pushing both sides of the body closer to each other, and the opening (internal space) Is formed. Since the bottom panel is connected to the body, when one side of the body and the other side of the body move away from each other, the folding of the bottom panel is gradually released and spread accordingly. The bottom is stretched. When the bottom panel is folded in a direction in which it is pinched inside the body, the bottom panel moves gradually downward. When the bottom panel is folded in a direction in which the bottom panel can be seen and protrudes outward, the bottom panel gradually moves upward.

  According to the present invention, at least one lowermost portion of the both sides of the body portion is provided with an inwardly extending hook portion engaged with the engaged portion of the bottom panel which is unfolded and unfolded. Since the two sides of the body are brought closer to each other, the buttocks move inward accordingly. The bottom panel and the buttocks which are unfolded and gradually spread overlap each other up and down, and finally the hooks engage with the engaged portions formed on the bottom panel. The bottom panel can not be refolded unless the buttocks are disengaged and disengaged. It is possible to stably maintain the raised condition. In addition, since the bottom panel can be supported by the inwardly extending buttocks, a container having a robust bottom portion is realized.

  The engaged portion may have an edge portion in which the hook portion is engaged (engaged), and the form thereof may be a hole (a hook hole) or a notch or a notch.

  Preferably, a pair of engaged portions are formed on the bottom panel, and a pair of hooks engaged with each of the pair of engaged portions are provided at lowermost portions of both side portions of the body portion. There is. Since the hook portion engages with both of the pair of engaged portions formed on the bottom panel, the spread state of the bottom panel is stably maintained, and the stability of the container is improved.

  When the foldable bottom panel is pinched inside the body by folding the fold along the folds, preferably the ridge is provided with an upward turn. Since the bottom panel gradually moves downward when being raised, it is possible to firmly engage the hooks formed on the bottom panel moving downward from the lower side by engaging the upward bar.

  When the foldable bottom panel is projected downward by valley-folding along the folds, the ridges are preferably provided with a downward turn. Since the bottom panel gradually moves upward when being raised, a downward return can be engaged from the upper side to be firmly engaged with the engaged portion formed on the bottom panel moving upward.

  The foldable bottom panel is made to project downward by valley-folding along the folds, and then the bottom panel is folded along the folds into a mountain fold, and finally, the object formed on the bottom panel is formed. The hook may be engaged with the engaging part. In this case, the buttocks are preferably provided with an upward return.

  In one embodiment, the boundary between the bottom panel and the body is curved with an arcuate bulge towards the body. When raised, the bottom panel can be warped, increasing the strength of the bottom panel.

  In a preferred embodiment, handles are provided on one or both sides. The grip portion can be grasped by hand to lift the auto bottom container.

  The auto bottom container according to the second aspect of the present invention has a bottom panel which has an engaged portion and a fold, and is foldable along the fold, and a front and a back of the bottom panel sandwiching the fold. And a first panel and a second panel forming the body by fixing the both sides to each other, and at least one of the lower portions of the both sides of the body being unfolded and unfolded Inwardly extending hooks are provided which engage with the engaged portions of the bottom panel. The body is formed by fixing the both sides of the first panel and the second panel to each other. For example, by providing adhesive strips (adhesion panels) on both sides of the first panel, both sides of the second panel, or both sides of both the first and second panels, the first panel and the second panel can be provided. Both sides of the panel can be secured together to form the torso.

  Also in the second invention, the inward extending hook portion engaged with the engaged portion of the bottom panel which is unfolded and unfolded at the lowermost portion of at least one of both side portions of the body portion. Because the two sides of the body are brought closer to each other, the buttocks move inward accordingly. The bottom panel and the buttocks which are unfolded and gradually spread overlap each other up and down, and finally the hooks engage with the engaged portions formed on the bottom panel. The bottom panel can not be refolded unless the buttocks are disengaged and disengaged. It is possible to stably maintain the raised condition. In addition, since the bottom panel can be supported by the inwardly extending buttocks, a container having a robust bottom portion is realized.

  The auto bottom container according to the third aspect of the present invention is provided with a bottom panel foldable along the folds, a foldable portion along the folds, and the folds provided between the folds. A front panel and a rear panel rising from each of the front panel and a joining flap provided on each of the left and right sides of the front panel and each of the left and right sides of the rear panel and joined together; The lower end of at least one of the joint flaps on the side wall is provided with an inwardly extending hook that engages the engaged portion of the bottom panel that has been unfolded and unfolded. It is characterized by

  Bonding flaps are provided in a row on both the left and right sides of the front panel and on both the left and right sides of the back panel, and the bonding flaps are respectively bonded (eg, bonded) on the left and right sides. The inner surfaces of the joining flaps may be pasted together, for example, the joining flaps on the left and right sides of the front panel may be rolled up to the outer faces of the joining flaps on the left and right sides of the back panel. In any case, the front panel and the back panel are integrated on both sides by joining the left and right joining flaps. A body is formed by the front panel and the back panel.

  When raising the box, push the left and right side joint flaps in the direction toward each other. The front and back panels move away from one another to form an opening. The folded bottom panel is connected to the front panel and the back panel, so as the front panel and the back panel move away from each other, the folding of the bottom panel is gradually released and spread along with the bottom panel To go.

  Also in the third invention, since the inward-extending ridges are formed in the lowermost portions of at least one of the left and right side joining flaps of the front panel and the back panel, , The hips also move inward with this. The bottom panel and the buttocks which are unfolded and gradually spread overlap each other up and down, and finally the hooks engage with the engaged portions formed on the bottom panel. The bottom panel can not be refolded unless the buttocks are disengaged and disengaged. It is possible to stably maintain the raised condition. In addition, since the bottom panel can be supported by the inwardly extending buttocks, a container having a robust bottom portion is realized.

It is an expanded view of the auto bottom container of 1st Example. It is a front view of the auto bottom container of the 1st example of a folding state. It is an end elevation which follows the III-III line of FIG. It is an end elevation equivalent to FIG. 3 on the way of raising. It is an end elevation equivalent to FIG. 3 after raising. It is a front view of the auto bottom container of 1st Example after raising. It is a bottom view of the auto bottom container of 1st Example after raising. It is an enlarged view which shows the mode of engagement of a buttock and a buttock. It is a front view of a pouch bag. It is sectional drawing in alignment with XX of FIG. A mode that a pouch bag is adhere | attached on the automatic bottom container of 1st Example is shown. It is an expanded view of the auto bottom container of 2nd Example. It is a front view of the auto bottom container of the 2nd example of a folding state. It is a front view of the auto bottom container of 2nd Example after raising. It is a bottom view of the auto bottom container of 2nd Example after raising. It is an enlarged view which shows the mode of engagement of a buttock and a buttock. It is an expanded view of the auto bottom container of 3rd Example. It is a front view of the auto bottom container of 3rd Example of a folded state. It is a front view of the auto bottom container of 3rd Example in the middle of raising. It is a bottom view of the auto bottom container of 3rd Example after raising. It is an expanded view of the auto bottom container of 4th Example. It is a rear view of the auto bottom container of the 4th example of a folding state. It is an expanded view of the auto bottom container of 5th Example. It is a rear view of the auto bottom container of the 5th example of a folding state. It is an expanded view of the auto bottom container of 6th Example. It is a rear view of the auto bottom container of 6th Example in a folded state. It is an expanded view of the auto bottom container of 7th Example. It is a perspective view of the auto bottom container of 7th Example after raising. It is an expanded view of the auto bottom container of 8th Example. It is a perspective view of the automatic bottom container of 8th Example after raising. It is an expanded view of the auto bottom container of 9th Example. It is a front view of the auto bottom container of the ninth embodiment in a folded state. It is a perspective view of the automatic bottom container of 9th Example after raising.

  Hereinafter, the auto bottom container according to the present invention will be described in detail with reference to the drawings.

  1 to 8 show an auto bottom container according to a first embodiment. The auto bottom container 1 according to this embodiment is made of one cardboard. FIG. 1 is a development view of a cardboard (blank) forming the auto bottom container 1 and is a view of the inner surface of the container 1. An alternate long and short dash line indicates a fold that is mountain-folded or valley-folded when making the container 1. In order to facilitate the bending, a folding line process, a ruled line process, a perforation process, a half cut process, etc. are performed along the one-dotted chain line. Instead of cardboard, cardboard, milk carton paper, plastic sheets, etc. can be used.

  The auto bottom container 1 can be used as a container by being raised from the folded state. When the folded container 1 is raised, a bottom portion is formed as described later (the bottom portion is stretched on the bottom of the container) (this is referred to as "auto bottom"). FIG. 2 shows the auto bottom container 1 in a folded state completed by bending the stamped (die-cut) blank shown in FIG. 1 and bonding (gluing) the necessary portions described later. FIG. 6 shows an auto bottom container 1 which has been wounded (assembled). The auto bottom container 1 is transported or stored in a folded state (FIG. 2) and then raised by the user (FIG. 6).

  Referring initially to FIG. 1, the blank of the auto-bottom container 1 comprises a substantially hexagonal bottom panel 30. A fold 31 is formed in the bottom panel 30 at a position equally dividing the bottom panel 30 back and forth, and a pair of eyelets 32L and 32R are opened at the left and right ends of the fold 31. Although details will be described later, the hook holes 32L and 32R are used as engaged portions for engaging a hook portion described below. The front panel 10 and the back panel 20 extend continuously in opposite directions from the folds 15 and 25 at which the front and back (front and back) of the bottom panel 30 sandwiching the fold 31 are in contact. The width of the front panel 10 and the back panel 20 increases with distance from the bottom panel 30, so that the upper part of the front panel 10 and the rear panel 20 opens wide when raised.

  The front panel 10 is divided into three divided areas 11a, 11b and 11c by two fold lines 13 extending in the longitudinal direction. The central divided area 11 b is connected to the bottom panel 30 via the fold line 15. Rectangular bonding flaps 12L and 12R are connected via folds 14 to the sides of the left and right divided areas 11a and 11c, respectively. At the lowermost part of the junction flaps 12L and 12R, the ridges 16L and 16R having a return toward the inner side (the divided regions 11a and 11c) and upward at the tip (meaning upward in the raised state) Are formed respectively. Furthermore, legs 17L and 17R are respectively formed at the lowermost portions of the divided regions 11a and 11c.

  The auto bottom container 1 of the first embodiment is formed symmetrically with the fold line 31 of the bottom panel 30 as a boundary. That is, two folds 23 extending in the longitudinal direction are also formed on the back panel 20, and the back panel 20 is divided by the two folds 23 into three divided areas 21a, 21b and 21c. The bottom panel 30 is connected to the central divided area 21b via a fold line 25 and joint flaps 22L and 22R are connected to lateral sides of the left and right divided areas 21a and 21c via a fold line 24. At the lowermost portions of the joint flaps 22L, 22R, collar portions 26L, 26R are formed, respectively, with inwardly directed upward turns. Legs 27L and 27R are respectively formed at the lowermost portions of the divided regions 21a and 21c. The two folds 13 and 23 formed longitudinally extending in the front and rear panels 10 and 20, respectively, shape the shape of the auto bottom container 1 (see FIG. 6) when raised (see FIG. 6). It is provided for clean shaping) and is not necessary. Alternatively, it may be formed on a portion of the front and back panels 10 and 20 (for example, from the upper end to the lower end of the front and back panels 10 and 20).

  The blank 1 which has been stamped (cut out) as described above is folded along its folds and is bonded in the desired places to form the shape shown in FIG.

  That is, the bottom panel 30 is mountain-folded along the fold line 31 and the bottom panel 30 is folded in two. Furthermore, the front panel 10 and the back panel 20 are valley-folded along the fold lines 15 and 25. The front panel 10 and the back panel 20 are overlapped, and the folded bottom panel 30 is sandwiched between them. The adhesive flaps N provided on the inner surfaces of the left and right side joining flaps 22L and 22R of the back panel 20 make the joining flaps 22L and 22R on both left and right sides of the back panel 20 and the joining flaps 12L and 12R on both left and right sides of the front panel 10 Are bonded respectively. A body is formed by the front panel 10 and the back panel 20 bonded on both sides, and the auto bottom container 1 in a folded state is completed (FIG. 2). By bonding with the glue portion N, the left flap junction 12L of the front panel 10 and the left flap junction 22L of the back panel 20 are integrated, and the lowermost portion of these junction flaps 12L, 22L The collar portions 16L and 26L are also integrated. Similarly, the right flap junction 12R of the front panel 10 and the right junction flap 22R of the back panel 20 are integrated, and the bottom ridges 16R and 26R of these junction flaps 12R and 22R are also integrated. Integrated.

  The auto bottom container 1 in the folded state is raised by bringing the left flaps 12L and 22L and the right flaps 12R and 22R close to each other (pushing them in the approaching direction). FIG. 3 is an enlarged end view taken along the line III-III of FIG. FIG. 4 is an end view corresponding to FIG. FIG. 5 is an end view corresponding to FIG. 3 after the completion of loading. Referring to FIGS. 2 to 5, the left flaps 12L and 22L and the right flaps 12R and 22R are respectively grasped with fingers and pushed toward each other, the left flaps 12L, 12L, 22L and the right flap joint flaps 12R and 22R approach each other, and at the same time the front panel 10 and the back panel 20 move outward and away from each other. When the front panel 10 and the back panel 20 move away from each other outward, the front panel 10 bends at an obtuse angle at the fold 13 and the back panel 20 at the fold 23. Further, the bottom panel 30 sandwiched between the front panel 10 and the back panel 20 is gradually released from the folded state as the front panel 10 and the back panel 20 move away from each other, and thus gradually released. It spreads and descends downward, and finally it is stretched almost flush with the lower part of the front panel 10 and the back panel 20.

  FIG. 6 is a front view of the raised auto bottom container 1 as viewed from slightly above. FIG. 7 is a bottom view of the auto bottom container 1 in the state of FIG. FIG. 8 is an enlarged view showing how the hooks 16L and 26L formed at the lowermost portions of the left side flaps 12L and 22L are engaged with the hooks 32L formed on the bottom panel 30. .

  As described above, the auto bottom container 1 is raised by bringing the left flaps 12L, 22L and the right flaps 12R, 22R close to each other. When the left flaps 12L and 22L and the right flaps 12R and 22R are brought close to each other, the lowermost ridges 16L and 26L of the junction flaps 12L and 22L and the lowermost ridges of the junction flaps 12R and 22R 16R and 26R also move inward. Further, as described above, the bottom panel 30 gradually descends downward. As the bottom panel 30 descends, the lowermost ridges 16L and 26L of the left flaps 12L and 22L are joined to the pair of hook holes 32L and 32R formed in the bottom panel 30, respectively, and the right side is joined The lowermost flanges 16R and 26R of the flaps 12R and 22R enter from the lower side and engage with the edges of the wedge holes 32L and 32R. Once engaged, the engagement is relatively difficult to disengage, and the substantially flush bottom panel 30 will not fold again. It is possible to stably maintain the raised condition. Further, since the bottom panel 30 which has been spread is supported from the lower side by the left ridges 16L and 26L and the right ridges 16R and 26R, the bottom panel 30 is stretched relatively firmly.

  Further, in the raised state, the auto bottom container 1 is provided with the legs 17L and 17R at the lower end of the left and right divided areas 11a and 11c of the front panel 10 and the lower end of the left and right divided areas It is equally supported at four places of the legs 27L, 27R. The raised auto bottom container 1 can also be stably made to stand on its own.

  The auto bottom container 1 is used, for example, together with a pouch bag attached to the inside of the container 1, and can be used to widely open the upper opening of the pouch bag and firmly and stably stand on itself.

  FIG. 9 shows a front view of the pouch bag 40 used with the auto bottom container 1, and FIG. 10 shows a cross-sectional view taken along the line X-X in FIG. FIG. 11 shows the pouch bag 40 attached to the inside of the automatic bottom container 1.

  The pouch bag 40 has a rectangular shape whose width narrows slightly downward as viewed from the front, and includes a front film 41 and a back film 42 forming the front and back surfaces, and a bottom film 43 serving as a gusset. In the upper part of the pouch bag 40, the front and back films 41, 42 are mutually sealed at the outer peripheral part, and in the lower part of the pouch bag 40, the outer peripheral part of the bottom film 43 and the outer peripheral parts of the front, back film 41, 42 are mutually sealed (Seal portion 45). The sealing is performed by adhesion (including welding) of the film. The bottom film 43 is folded in two at approximately the center thereof and is sandwiched between the front film 41 and the back film 42. For example, processed food 47 (freeze-dried food or the like) is accommodated in an internal space sealed by the front film 41, the back film 42 and the bottom film 43.

  A pair of notches (cuts or cuts) 46 are formed in the seal portion 45 between the top film 41 and the back film 42 in the upper part of the pouch bag 40. The notch 46 is formed in order to tear the pouch bag 40 in the width direction and to make it easy to open it. Preferably, a weak portion (half cut or the like) 48 for facilitating tearing is formed in a straight portion connecting the notches 46 of the front film 41 and the back film 42.

  The pouch bag 40 is adhered to the inner surface of the auto bottom container 1 (the inner surface of the front panel 10 and the inner surface of the back panel 20). Referring to FIG. 11, positive and rear panels 10 and 20 and front and back films 41 and 42 of pouch bag 40 are formed at two places (adhesion points P1 and P2) above and below pouch bag 40, respectively. Be glued. The pouch bag 40 is not adhered to the bottom panel 30 of the auto bottom container 1. The bottom panel 30 (see FIG. 2) of the mountain-folded auto-bottom container 1 is sandwiched between the bottom films 43 (see FIG. 10) of the folded pouch bags 40.

  By tearing the upper end portion of the pouch bag 40 along the notch 46 and the weak portion 48, the upper portion of the pouch bag 40 is opened. Next, as described above, the left and right joining flaps 12L, 22L, 12R, and 22R of the auto bottom container 1 are pushed in the directions toward each other. Since the front and back films 41 and 42 of the pouch bag 40 are bonded to the positive and back panels 10 and 20 of the auto bottom container 1, the upper portion of the auto bottom container 1 gradually opens up while the pouch bag 40 is The mouth of the upper part also spreads out gradually. The bottom film 43 of the pouch bag 40 is in a bent state by the positive and back panels 10 and 20 moving away from each other and the front and back films 41 and 42 of the pouch bag 40 moving away from each other accordingly. Are eliminated and spread gradually (a guise is formed).

  For example, boiling water is poured into the pouch bag 40 having a large opening at the top, whereby the processed food 47 is dissolved in the boiling water, and a soup or the like is completed. Since the pouch bag 40 is firmly supported by the auto bottom container 1, there is little possibility that the auto bottom container 1 will fall and the contents will spill. Further, since the bottom panel 30 is stretched relatively firmly, there is little possibility that the bottom panel 30 may be broken (the bottom may be pulled out) even if hot water is poured. For example, it is very useful for emergency food and camping equipment. However, it is also suitable for use in ordinary homes and the like.

  In the first embodiment described above, the auto bottom container 1 is provided with the bottom panel 30 having a substantially regular hexagonal shape, and the front and back panels 10 and 20 are divided into three divided areas by the two fold lines 13 and 23. As described above, the shape of the bottom panel 30 is not limited to a hexagon, and may be a quadrilateral, a pentagon, another polygon, a circle, an oval, or the like. The number of divided areas is not limited to three, and may be two, four, or other numbers. Also, the container 1 does not necessarily have to be completely symmetrical with respect to the fold line 31 of the bottom panel 30. For example, the height (length) of the back panel 20 can be made higher than that of the front panel 10, or the shapes of the left and right joint flaps can be made different.

  12 to 16 show an auto bottom container according to a second embodiment. The same components as those shown in the first embodiment are designated by the same reference numerals to avoid redundant description.

  The second embodiment differs from the first embodiment in the following three points. First, the folds 15, 25 at the boundary between the bottom panel 30 and the front and back panels 10A and 20A are directed to the front panel 10A (central divided area 11b) and the back panel 20A (central divided area 21b), respectively. It is a point that is curved and formed with an arc-shaped bulge. The second is the return of the lower end ridges 16L and 16R of the left and right junction flaps 12L and 12R of the front panel 10A, and the bottom ridge 26L of the bottom of the left and right junction flaps 22L and 22R of the back panel 20A, It is a point where the barb of the tip of 26R is formed downward. The third point is that semicircular depressions 41 are formed on the sides of the joint flaps 12L, 12R, 22L, 22R.

  Referring to FIG. 13, in the case of the auto bottom container 2 of the second embodiment, the bottom panel 30 is valley-folded along the folds 31 and in the folded state, the bottom panel 30 protrudes downward. When the joining flaps 12L and 22L on the left side and the joining flaps 12R and 22R on the right side are brought close to each other (pushed in the approaching direction) to raise the folded auto bottom container 2, the bottom panel 30 gradually turns upward. To rise. The upward rising bottom panel 30 may be pushed up with a finger to assist the upward movement of the bottom panel 30. Since the semicircular depression 41 is formed on the side of the joining flaps 12L, 12R, 22L, 22R, for example, the forefinger can be put on the semicircular depression 41 to support the entire container 2, and the bottom panel 30 Easy to push upwards with your thumb. Referring to FIG. 16, while the bottom panel 30 ascends, the pair of hook holes 32L, 32R opened in the bottom panel 30 and the hook portions 16L, 26L at the lower end of the left flaps 12L, 22L , Ridges 16R and 26R at lower end portions of the right flap joint flaps 12R and 22R enter from above.

  Since the folds 15 and 25 at the boundary between the bottom panel 30 and the front and back panels 10A and 20A have an arc-shaped bulge toward the front panel 10A and the back panel 20A, respectively, the bottom panel 30 faces upward. It curves smoothly as it draws an arc and protrudes (see FIG. 14). By smoothly curving upward, the bottom panel 30 is firmly stretched on the bottom surface of the auto bottom container 2, and the pair of wedging holes 32L and 32R opened in the bottom panel 30 and the wedging portions 16L and 26L. And the hooks 16R, 26R are also firmly engaged (FIG. 15, FIG. 16).

  17 to 20 show a third embodiment. The shape of the bottom panel is different from that of the first embodiment.

  Referring to FIG. 17, the bottom panel of the auto bottom container 3 of the third embodiment has a rectangular bottom panel 30A connected to the front panel 10 (central divided area 11b) through the fold 15 and a back surface through the fold 25. It includes a trapezoidal bottom panel 30B connected to the panel 20 (central divided area 21b). Both end portions of one wide side of the trapezoidal bottom panel 30B obliquely project outward, and weirs 32L and 32R are formed there. The boundary between the bottom panel 30A and the bottom panel 30B is a fold line 31 when the bottom panel is folded.

  Referring to FIG. 18, at the time of transportation or storage, bottom panels 30A and 30B of the auto bottom container 3 are made to project downward as in the second embodiment described above. Referring to FIG. 19, when raising the auto bottom container 3, the left flaps 12L and 22L and the right flaps 12R and 22R are brought close to each other, and the bottom panels 30A and 30B are lifted upward. Then, it is folded back downward (to the valley fold) upward (to the mountain fold) and is sandwiched between the front panel 10 and the back panel 20. Thereafter, the bottom panels 30A and 30B are lowered downward by bringing the left flaps 12L and 22L and the right flaps 12R and 22R close to each other in the same manner as in the first embodiment. The ridges 16L and 26L and the ridges 16R and 26R enter from the lower side into the perforations 32L and 32R formed at both ends of the bottom panel 30B (FIG. 20).

  When the bottom panels 30A and 30B are folded back downward (to the valley) and upward (to the mountain), the ridges 16L and 26L and the ridges 16R and 26R are bottom panels 30B (portions in which the ridges 32L and 32R are opened) Since the auto bottom container 3 of the third embodiment has a slight interference with the above, the portion (frame portion) in which the eyelet holes 32L and 32R are formed is easily deformed. A cut may be formed in the frame portion in which the eyelet holes 32L, 32R are formed. When the bottom panels 30A and 30B are folded back from the bottom to the top, the ridges 16L and 26L and the ridges 16R and 26R pass through the cut formed in the frame, so the part where the ridges 32L and 32R are formed is deformed It can be folded back from the bottom (valley fold) to the top (peak fold) without being

  21 and 22 show an auto bottom container according to the fourth embodiment. It is an expanded view of the auto bottom container 4 of 4th Example of FIG. FIG. 22 shows the back of the auto bottom container 4 in the folded state. The auto bottom container 4 of the fourth embodiment differs from the auto bottom container 1 of the first embodiment in that it has no bonding flap.

  Referring to FIG. 21, in the auto bottom container 4, the front panel 10B is formed with ridges 16L and 16R of the front panel 10B at the lowermost portions of the left and right divided areas 11a and 11c of the front panel 10B. Similarly, the ridges 26L and 26R of the rear panel 20B are formed at the lowermost portions of the left and right divided areas 21a and 21c of the rear panel 20, respectively.

  The glue margins 18L and 18R are continuously provided on both sides of the front panel 10B via the folds 14, respectively. Referring to FIG. 22, the body portions are formed by folding glue margins 18L and 18R inward along folds 14 and adhering them to the outer surface of back panel 20B (left and right divided areas 21a and 21c). . The auto bottom container 4 is raised by pushing the both sides of the auto bottom container 4 in the folded state respectively inward (the upper part opens the mouth largely). It is the same as the first embodiment that the hooks 16L, 26L and the hooks 16R, 26R enter from the lower side and engage with the hook holes 32L, 32R formed at both ends of the bottom panel 30.

  It goes without saying that the glue allowances 18L and 18R can be provided on the back panel 20B instead of the front panel 10B.

  23 and 24 show an auto bottom container according to the fifth embodiment. FIG. 23 is a developed view of the auto bottom container 5 of the fifth embodiment. FIG. 24 shows the back of the auto bottom container 5 in the folded state.

  The auto bottom container 5 of the fifth embodiment is different from the auto bottom container 1 of the first embodiment (see FIG. 1) in that the back panel 20C does not have a joint panel having a ridge. The joint panels 22L and 22R provided on the left and right sides of the back panel 20 in the first embodiment are, in the fifth embodiment, via fold lines 51 further to the sides of the joint panels 12L and 12R on the left and right of the front panel 10C. Each is connected in series.

  At the left side of the front panel 10C, the junction flap 22L is folded back along the fold 51 and adhered to the junction flap 12L. At the right side of the front panel 10C, the junction flap 22R is folded back along the fold 51 and adhered to the junction panel 12R. Referring to FIG. 24, in the same manner as in the fourth embodiment described above, the body portion is formed by folding the glue margins 18L and 18R inward along the fold line 52 and adhering to the outer surface of the back panel 20C. Ru. It is the same as the first embodiment that the hooks 16L, 26L and the hooks 16R, 26R enter from the lower side and engage with the hook holes 32L, 32R formed at both ends of the bottom panel 30.

  25 and 26 show an auto bottom container according to the sixth embodiment. FIG. 25 is a development view of the auto bottom container 6 of the sixth embodiment. FIG. 26 shows the back of the auto bottom container 6 in the folded state.

  Referring to FIG. 25, the auto bottom container 6 of the sixth embodiment has a point that adhesive strips 18L and 18R for bonding are provided on the back panel 20D, and a surface portion constituting the back surface when assembled. A point (a division area 21a, 21c) is different from the auto bottom container 5 (see FIG. 23) of the fifth embodiment in that it is included in the front panel 10D in the developed view (blank).

  At the left side of the front panel 10D, the junction flap 22L is folded back along the fold 51 and adhered to the junction flap 12L. At the right side of the front panel 10D, the junction flap 22R is folded back along the fold 51 and adhered to the junction panel 12R. Referring to FIG. 26, the left and right glue margins 18L and 18R of the back panel 20D (central divided area 21b) are respectively on the outer surfaces of the left and right divided areas 21a and 21c of the back panel 20 included in the front panel 10D in the developed view. Bonding is performed to form a body. It is the same as the first embodiment that the hooks 16L, 26L and the hooks 16R, 26R enter from the lower side and engage with the hook holes 32L, 32R formed at both ends of the bottom panel 30.

  27 and 28 show an auto bottom container according to the seventh embodiment. FIG. 27 is a development view of the auto bottom container 7 of the seventh embodiment. FIG. 28 is a perspective view of the auto bottom container 7 after the completion of loading. It differs from the auto bottom container 4 shown in FIGS. 21 and 22 in that a handle (handle) 51 is provided on the left side of the front panel 10E and the left side of the rear panel 20E.

  Referring to FIG. 27, the handle portion 51 of the left side of the front panel 10E and the handle portion 51 of the left side of the back panel 20E are overlapped and adhered by the glue portion N. The handle portion 51 is formed with an oblong cut-out portion (opening) 51a. Referring to FIG. 28, there is provided an auto bottom container 7 provided with a handle 51 on one side, which can be lifted by putting a finger in the cutout 51a.

  29 and 30 show an auto bottom container according to the eighth embodiment. FIG. 29 is a developed view of the auto bottom container 8 of the eighth embodiment. FIG. 30 is a perspective view of the auto bottom container 8 after the completion of loading. In the auto bottom container 3 shown in FIGS. 17 to 20, circular cut-out portions (openings are respectively formed on the left and right junction flaps 12L and 12R of the front panel 10F and on the left and right junction flaps 22L and 22R of the back panel 20F. The difference is that the handle 52 provided with the connector 52a is formed.

  Referring to FIG. 29, the handle portion 52 of the front panel 10F and the handle portion 52 of the rear panel 20F are overlapped and bonded by the glue portion N. An auto-bottom container 8 is provided, which has grips 52 on both sides, which can be lifted with fingers in the cutout 52a.

  31 to 33 show an auto bottom container of the ninth embodiment. FIG. 31 is a developed view of the auto bottom container 9 of the ninth embodiment. FIG. 32 shows the auto bottom container 9 in the folded state as seen from the front. FIG. 33 is a perspective view of the auto bottom container 9 after the completion of loading.

  The auto bottom container 9 of the ninth embodiment has a pair of grip portions 53 (cuts constituting the grip portion 53) formed on the front panel 10B (left and right divided areas 11a and 11c) as shown in FIGS. It differs from the auto bottom container 4 shown in FIG.

  The handle portion 53 of the auto bottom container 9 is formed using a part of the front panel 10B. Referring to FIGS. 32 and 33, the frame-shaped portion surrounded by the notches is punched from front panel 10A (division areas 11a and 11c), and the stamped portion is used as handle 53. An auto bottom container 9 is provided which comprises handles 53 on both sides.

1, 2, 3, 4, 5, 6, 7, 8, 9 Auto bottom container
10, 10A, 10B, 10C, 10D, 10E, 10F front panel
12L, 12R, 22L, 22R junction flap
16L, 16R, 26L, 26R buttocks
18L, 18R adhesive panel
20, 20A, 20B, 20C, 20D, 20E, 20F Rear panel
30, 30A, 30B bottom panel
31 fold
32L, 32R 鉤 (engaged part)
40 pouch bag
51, 52, 53 handle

Claims (9)

The engaged portion and the fold are formed, the bottom panel foldable along the fold, and the rim of the bottom panel, the opening is closed when the bottom panel is folded along the fold, and The body portion having an opening formed when the bottom panel is unfolded and unfolded,
An inwardly-extending collar is provided adjacent to at least one lowermost portion of both sides of the body portion and engaged with the engaged portion of the unfolded and unfolded bottom panel. Yes,
Auto bottom container. An engaged portion and a fold are formed, and the bottom panel foldable along the fold line, and the front panel and the back panel of the bottom panel sandwiching the fold from each other, the both sides being fixed to each other Comprising a first panel and a second panel forming a body by
An inwardly-extending collar is provided adjacent to at least one lowermost portion of both sides of the body portion and engaged with the engaged portion of the unfolded and unfolded bottom panel. Yes,
Auto bottom container. An engaged portion and a fold are formed, and the bottom panel foldable along the fold,
It is provided on the front panel and the back panel which are provided on both sides of the front panel and the rear panel of the bottom panel provided on both sides of the fold and provided on both the left and right sides of the front panel Equipped with joint flaps,
Engaging with the engaged portion of the bottom panel that is unfolded and unfolded adjacent to the lowermost portion of the junction flap on at least one of the front and rear panels. Inward-facing buttocks are provided,
Auto bottom container. A pair of engaged portions are formed on the bottom panel,
A pair of hooks are provided to engage with each of the pair of engaged parts,
The auto bottom container according to any one of claims 1 to 3. The foldable bottom panel is mountain folded along the fold;
The buttocks have an upward turn,
The auto bottom container according to any one of claims 1 to 4. The foldable bottom panel is valley-folded along the fold;
The buttocks have a downward turn,
The auto bottom container according to any one of claims 1 to 4. The boundary between the bottom panel and the body is formed curved with an arc-shaped bulge in the direction towards the body,
The auto bottom container according to claim 1 or 2. The boundaries between the bottom panel and the front and back panels are curved with an arc-shaped bulge towards the front and back panels,
The auto bottom container according to claim 3. Have grips on one or both sides,
The auto bottom container according to any one of claims 1 to 8.

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