Fukushima-shi, Japan
Fukushima-shi, Japan

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Patent
Rengo Co. | Date: 2017-01-18

A packing box 10 have a bottom panel 12, end panels 13A, 13B raised from first edges of the bottom panel 12, side panels 15A, 15B arranged adjacently to the end panels 13A, 13b, edge panels 20 connected to side edges of the end panels 13A, 13B via outer panel fold lines 21, fold-back panels arranged on inner side surfaces of the edge panels 20, inner panels 27 arranged on inner side surfaces of the end panels 13A, 13B, and reinforcing panels 26 continuously formed with the fold-back panels 25 via first fold lines 29 and the inner panels 27 via second fold lines 30. The reinforcing panel 16 is formed in an inwardly projecting manner between the fold-back panel 25 and the inner panel 27. Any of the first and second fold lines 29, 30 positioned on a side closer to the outer panel fold line 21 than a projecting top portion is arranged away from the outer panel fold line 21 by a distance L3.


A tray portion (21) is constituted by a front receiving panel (1), a bottom surface panel (2), a rear surface panel (3), bottom side panels (6) integrally connected to the respective sides of the bottom surface panel (2), and rear side panels (7) integrally connected to the respective sides of the rear surface panel (3). A lid portion (22) is constituted by a top surface panel (4), a front surface panel (5), top side panels (8) integrally connected to the respective sides of the top surface panel (4), and front side panels (9) integrally connected to the respective sides of the front surface panel (5). The front receiving panel (1), the bottom surface panel (2), the rear surface panel (3), the top surface panel (4), and the front surface panel (5) are integrally connected one to another, and configured to cover products. A cut line (12a) for separating the lid portion (22) from the tray portion (21) is formed so as to pass through only an area of the rear surface panel (3), only an area of the top surface panel (4), or areas of both the rear surface panel (3) and the top surface panel (4). When products are exhibited in the tray portion (21), the lid portion (22) is severed along the cut line (12a), and separated from the tray portion (21).


Patent
Rengo Co. | Date: 2013-01-17

A base sheet and a cover sheet are supplied, the height of at least one product which is placed on the base sheet is measured, and second fold lines are formed on the base sheet and the cover sheet such that the second fold lines are spaced from respective first fold lines formed on the respective side portions of the base sheet and the cover sheet and such that the space between each of the first fold lines and the corresponding one of the second fold lines is adjusted based on the value of the measured height of the product. The base sheet is folded, the base sheet and the cover sheet are arranged so that the base sheet crosses the cover sheet, the cover sheet is placed on the base sheet, and the cover sheet is folded to bond the cover sheet to the bottom sheet.


A locking receiving portion is defined by a first inclined line extending toward a third panel side on a first panel from a branching point on a fold line between the first panel and a second panel, a second inclined line extending toward the third panel side on the second panel from the branching point, and a cut portion extending between a distal end of the first inclined line and a distal end of the second inclined line. The locking receiving portion extends in an inclined manner between the first panel and the second panel in an assembled state. A locking portion is formed on the third panel, and configured to be locked to a cut portion side of the locking receiving portion in an assembled state.


Patent
Rengo Co. | Date: 2014-11-26

In order to assemble a box for sending products in which the height of the box is freely (steplessly) changed according to the size of each of the products, a base sheet (1) and a cover sheet (2) are supplied, the height of a product which is placed on a bottom sheet portion (11) of the base sheet (1) is measured, second fold lines (b) are formed on the base sheet (1) and the cover sheet (2) such that the second fold lines (b) are spaced from respective first fold lines (a) formed on the respective side portions of the a bottom sheet portion (11) and a top sheet portion (21), wherein the space between each of the first fold lines (a) and the corresponding one of the second fold lines (b) is adjusted based on the value of the measured height of the product, wherein the spaces between the respective first fold lines (a) and the second fold lines (b) of the base sheet (1) are side sheet portions (12) and the spaces between the respective first fold lines (a) and the second fold lines (b) of the cover sheet (2) are side sheet portions (22), wherein the spaces between the respective second fold lines (b) of the base sheet (1) and the edges of the base sheet (1) are folded sheet portions (13) and the spaces between the respective second fold lines (b) of the cover sheet (2) and the edges of the cover sheet (2) are folded sheet portions (23), each of the side sheet portions (12) and the folded sheet portions (13) of the base sheet (1) is folded in the same direction, the base sheet (1) and the cover sheet (2) are arranged so that the base sheet (1) crosses the cover sheet (2), the cover sheet (2) is placed on the base sheet (1) so that the top sheet portion (21) is placed on the folded sheet portions (13) of the base sheet (1), and each of the side sheet portions (22) and the folded sheet portions (23) of the cover sheet (2) is folded in the same direction to bond the folded sheet portions (23) of the cover sheet (23) to the bottom sheet (11).


Patent
Rengo Co. | Date: 2014-08-13

A two-piece packaging box including a tray (1) and a cover (2). The tray (1) and the cover (2) can be reliably fixed together, and can be easily disconnected from each other without deteriorating its appearance. A window (17) is formed in the ridge between each side wall (11) and each end wall (12) adjacent to the side wall (11). The cover (2) includes opposed side walls (21) each having end flaps (22) integrally connected to the end edges thereof and bent until they abut the respective end flaps (22) connected to the other side wall (11). The cover (2) further includes a top wall (20) and end panels (23) integrally connected to the opposed end edges of the top wall (20) and bent downwardly and stuck on the corresponding end flaps (22) at their portions outside of a cut line (24) formed in each end panel (23) to extend from the intermediate portion of the distal end edge of the end panel (23) to its proximal portion. An engaging portion (27) is formed in the ridge between each side wall (21) of the cover (2) and each adjacent end flap (22). By pushing in the engaging portions (27) until they are engaged in the respective windows (17), the tray (1) and the cover (2) are fixed together. By severing the end panels (23) along the cut lines (24), the cover (2) is disconnected from the tray (1) and becomes collapsible.


Patent
Rengo Co. | Date: 2014-09-05

A packing box has a bottom panel, end panels raised from first edges of the bottom panel, side panels arranged adjacently to the end panels, edge panels connected to side edges of the end panels via outer panel fold lines, fold-back panels arranged on inner side surfaces of the edge panels, inner panels arranged on inner side surfaces of the end panels, and reinforcing panels continuously formed with the fold-back panels via first fold lines and the inner panels via second fold lines. The reinforcing panel 16 is formed in an inwardly projecting manner between the fold-back panel and the inner panel. Any of the first and second fold lines positioned on a side closer to the outer panel fold line than a projecting top portion is arranged away from the outer panel fold line by a distance.


A box includes a front receiving panel, a bottom surface panel, a rear surface panel, a top surface panel, and a front surface panel that are integrally connected one to another. Each pair of bottom side panels, rear side panels, top side panels, and front side panels are integrally connected to the respective sides of each of the bottom, rear, top, and front surface panels. The front receiving panel, the bottom and rear surface panels, and the bottom and rear side panels constitute a tray portion of the box, with the remaining panels constituting a lid portion of the box. A cut line for separating the lid portion from the tray portion is formed to pass through one or both of the rear surface panel and the top surface panel.


Patent
Rengo Co. | Date: 2016-03-09

In order to provide a box for sending products in which the height of the box is freely changed according to the size of each of the produced, a height-adjustable box comprising: a base sheet (1) and a cover sheet (2) which are made of corrugated paperboard, wherein the base sheet (1) comprises side sheet portions (12) and folded sheet portions (13) on both sides of a bottom sheet portion (11) through first fold lines (a) and second fold lines (b), the cover sheet (2) comprises side sheet portions (22) and folded sheet portions (23) on both sides of a top sheet portion (21) through first fold lines (a) and second fold lines (b), wherein the side sheet portions (12) and the folded sheet portions (13), of the base sheet (1) are bent upwardly along the first fold lines (a) and the second fold lines (b), the cover sheet (2) is placed on the base sheet (1) with the base sheet (1) and the cover sheet (2) arranged so that the base sheet (1) crosses the cover sheet (2), the top sheet portion (21) is bonded to the folded sheet portions (13) of the base sheet (1), the side sheet portions (22) and the folded sheet portions (23) of the cover sheet (2) are bent downwardly along the first fold lines (a) and the second fold lines (b), and the folded sheet portions (23) of the cover sheet (2) are then bonded to the bottom sheet portion (11), wherein the base sheet (1) comprises folded pieces (15) which protrude from both sides through respective fold lines (c) and extend over the first fold lines (a) to second fold lines (b), the folded pieces (15) comprise cuts (d) formed on extended lines of the respective second fold lines (b), and the cover sheet (2) comprises protruding pieces (26) which protrude from both sides and provided continuously from the first fold lines (a) to the folded sheet portions (23), and the respective folded pieces (15) of the base sheet (1) are separated from each other by the cuts (d) such that portions extend from each of the side sheet portions (12) of the folded pieces (15) are bent outwardly along inner surfaces of the protruding pieces (26), portions extend from each of the folded sheet portions (13) of the folded pieces (15) are bent downwardly along inner surfaces of the side sheet portions (22) of the cover sheet (2), and gaps between the base sheet (1) and the cover sheet (2) in the corners of the box are closed.


A locking receiving portion 23 is defined by a first inclined line 18 extending toward a third panel 44 side on a first panel 12 from a branching point 16 on a fold line 15 between the first panel 12 and a second panel 13, a second inclined line 19 extending toward the third panel 44 side on the second panel 13 from the branching point 16, and a cut portion 24 extending between a distal end of the first inclined line 18 and a distal end of the second inclined line 19. The locking receiving portion 23 extends in an inclined manner between the first panel 12 and the second panel 13 in an assembled state. A locking portion 48 is formed on the third panel 44, and configured to be locked to a cut portion 24 side of the locking receiving portion 23 in an assembled state.

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