Sheets of corrugated paper for producing packings

A set of sheets of corrugated paper for producing packings (300A, 300B), for holding a rectangular shaped electronic product (400) that is particularly sensitive to shock, said set of sheets comprising:

• I) a first flat sheet (101A) of corrugated paper foldable into a first packing element (201A), which includes:
• (a) first and second transversely extending parallel central creases (A1, A2),
• (b) a first central bottom section (b) defined generally by the first and second central creases (A1, A2),
• said first central bottom section (b) having a first transversely-extending slit (8),
• (c) a first inner side wall member (1T) adjacent the first bottom section (b) and divided from the first bottom section (b) by the first central crease (A1),
• (d) a support wall member (6) located between the first bottom section (b) and the first inner side wall member (1T) and at least partially surrounded by the first bottom section (b),
• a greater part of the support wall member (6) being defined by both a first transversely-extending crease (E) and two right-angled openings (7 7),
• the support wall member (6) having two projecting portions (6a, 6a),
• e) a support surface member (4) surrounded by and located between the first inner side wall member (1T) and the support wall member (6),
• the support surface member (4) being divided from the support wall member (6) by a second transversely-extending crease (C) and by two parallel longitudinally-extending cuts (5 ), and being divided from the first inner side wall member (1T) by a third transversely-extending crease (D) parallel to the second crease (C) and by the two parallel cuts (5, 5),
• the two projecting portions (6a, 6a) of the support wall member (6) being located with part of the support surface member (4) therebetween,
• (f) a first outer side wall member (1S) located adjacent to and on the outside of the first inner side wall member (1T) and separated therefrom by a first transversely-extending double crease (B1),
• (g) two longitudinally-extending slits (3, 3) surrounded by the first outer and inner side wall members (1S, 1T), the two slits (3, 3) extending across the first double crease (B), each of the two slits (3, 3) being located near one side of the first sheet (101A),
• (h) two openings (9, 9) located inside the two slits (3, 3) for receiving projecting portions of the product (400), the two openings (9, 9) starting from an outer line of the first double crease (B1) and extending for the most part into the first inner side wall member (1T),
• (i) a supporting piece (10) provided between the first inner side wall member (1T) and the first outer side wall member (1S),
• the supporting piece (10) starting from an inner line of the first double crease (B1) and being mostly surrounded by the first outer side wall member (1S),
• the supporting piece (10) having three sides defined by a narrow cut (11) and one side defined by a fourth transversely-extending crease (F),
• (j) a second inner side wall member (2T) corresponding to the first inner side wall member (1T) and located adjacent to the first bottom section (b) on an opposed side of the first inner side wall member (1T),
• the second inner side wall member (2T) being divided from the first bottom section (b) by the second central crease (A2),
• (k) a second outer side wall member (2S) corresponding to the first outer side wall member (1S),
• the second outer side wall member (2S) being located adjacent to and on the outside of the second inner side wall member (2T) and separated therefrom by a second transversely-extending double crease (B2),
• (1) first and second cushion members (13A, 13B) located between the first bottom section (b) and the second outer side wall member (2S),
• the second cushion member (13B) separating the second inner side wall member (2T) into two halves,
• the first and second cushion members (13A, 13B) being separated from each other by one half of the second inner side wall member (2T),
• each of the first and second cushion members (13A, 13B) being divided from the first bottom section (b) by a fifth transversely-extending crease (G1) and divided from the second outer side wall member (2S) by one crease and double crease B2,
• each of the first and second cushion members (13A, 13B) also having another transversely-extending crease (G2) therein,
• the first cushion member (13A) being separated from said one half of the second inner side wall member (2T) by a longitudinally-extending slit (14),
• the second cushion member (13B) having two parallel sides defined by two parallel longitudinally-extending cuts (44),
• each of the first and second cushion members (13A, 13B) having a portion (13a) that is defined partly by said another transversely-extending crease (G2) and arranged to be positioned in a horizontal plane when the first sheet (101A) is folded into the first packing element (201A),
• both the second central crease (A2) and the second double crease (B2) being interrupted by the second cushion member (13B),
• (m) a first longitudinally-extending end member (16A) provided between the first bottom section (b) and one end of the second outer side wall member (2S),
• the first end member (16A) being located adjacent to one end of the first bottom section (b) and to one end of the second inner side wall member (2T),
• the first end member (16A) being divided from the first bottom section (b) by both a sixth transversely-extending crease (H1) and a first longitudinally-extending long slit (15A), said first longitudinally-extending long slit (15A) having a portion (43) extending into the second outer side wall member (2S) which is larger than a remaining portion thereof dividing said first end member (16A) from said first bottom section (b),
• the first end member (16A) also being divided from the second inner side wall member (2T) by the first long slit (15A) and divided from the second outer side wall member (2S) by a seventh transversely-extending crease (42),
• the first end member (16A) having therein said sixth transversely extending crease (H1) and an eighth transversely extending crease (H2) parallel to said sixth crease (H1), and
• (n) a second longitudinally-extending end member (16B) provided between the first bottom section (b) and the second outer side wall member (2S),
• the second end member (16B) being located adjacent both to an opposed end of the first bottom section (b) and to the first cushion member (13A),
• the second end member (16B) being divided from the first bottom section (b) both by an extension of said sixth transversely extending crease (H1) and by a second longitudinally-extending long slit (15B) that extends into the second outer side wall member (2S),
• the second end member (16B) also being divided from the first cushion member (13A) by the second long slit (15B) and divided from the second outer side wall member (2S) by a ninth transversely-extending crease (41),
• the second end member (16B) having therein an extension of said eighth transversely-extending crease (H2) which partly divides the second end member (16B,) from the first bottom section (b),
• II) a second flat sheet (102A) of corrugated paper foldable into a second packing element (202A) that can be mounted in the first packing element (201A) to produce a first packing (300A), said second flat sheet (102A) including
• (a) first and second parallel transversely-extending additional central creases (A, A),
• (b) a central, second bottom section (c) defined by the first and second additional central creases (A, A), a first longitudinally-extending additional elongated slit (19A), and a first longitudinally-extending crease (J),
• the second bottom section (c) having plural longitudinally-extending additional slits (21) that are aligned with each other for receiving the respective projecting portions (6a, 6a) of the support wall member (6) of the first sheet (101A),
• (c) a longitudinally-extending additional support wall member (23) provided on one side of the second bottom section (c) and divided from the second bottom section (c) by the first longitudinally extending crease (J), the additional support wall member (23) having a first projecting portion (23a),
• (d) a first longitudinally-extending elongated side member (20A) located adjacent to the second bottom section (c) but separated therefrom by the first additional elongated slit (19A),
• the first elongated side member (20A) having a second projecting portion (20a),
• (e) a second longitudinally-extending elongated side member (20B) located adjacent to the additional support wall member (23) but separated therefrom by a second longitudinally-extending additional elongated slit (19B),
• the first and second additional central creases (A, A) being interrupted by the second additional elongated slit (19B),
• (f) two transversely-extending short slits (24, 24) formed continuously with the second additional elongated slit (19B) and that partly define the additional support wall member (23),
• (g) a first inner end wall member (3T) located adjacent to the second bottom section (c) and the first and second longitudinally extending elongated side members (20A, 20B),
• the first inner end wall member (3T) being divided from the second bottom section (c) and second longitudinally extending elongated side member (20B) by the first additional central crease (A) and divided from the first longitudinally extending elongated side member (20A) by a tenth transversely-extending crease (45) that is located somewhat more outwards than the first additional central crease (A),
• the first inner end wall member (3T) also being separated from the additional support wall member (23) by a first one of the short slits (24, 24),
• each of the first and second additional elongated slits (19A, 19B) extending into the first inner end wall member (3T) at one end thereof, and
• (h) a first outer end wall member (3S) provided adjacent to and on the outside of the first inner end wall member (3T),
• the first outer end wall member (3S) being divided from the first inner end wall member (3T) by a second longitudinally-extending crease (B),
• the first outer end wall member (3S) having two longitudinally-extending third slits (19, 19),
• one of the two third slits (19, 19) being in alignment with the first additional elongated slit (19A) and the other of the two third slits (19, 19) being in alignment with the second additional elongated slit (19B),
• (i) a second inner end wall member (4T) opposed to the first inner end wall member (3T),
• the second inner end wall member (4T) being positioned adjacent to the first and second elongated side members (20A, 20B) as well as the second bottom section (c),
• the second inner end wall member (4T) being divided from the second bottom section (c) and the second elongated side member (20B) by the second additional central crease (A) and divided from the first side member (20A) by a transversely-extending crease (46) that is located somewhat more outwards than the second additional central crease (A),
• the second inner end wall member (4T) also being separated from the additional support wall member (23) by a second one of the two short slits (24, 24),
• each of the additional elongated slits (19A, 19B) extending into the second inner end wall member (4T) at one end thereof, and
• a second outer end wall member (4S) corresponding to the first outer end wall member (3S),
• the second outer end wall member (4S) being located adjacent to and on the outside of the second inner end wall member (4T),
• the second outer end wall member (4S) being divided from the second inner end wall member (4T) by a further longitudinally-extending crease corresponding to said second longitudinally-extending crease (B),
• the second outer end wall member (4S) having two farther longitudinally-extending slits corresponding to said longitudinally extending third slits (19, 19),
• one of the two further slits being aligned with the first additional elongated slit (19A) and the other of the two further slits being aligned with the second additional elongated slit (19B),
• III) a third flat sheet (101B) of corrugated paper foldable into a third packing element (201B), which includes:
• (a) a central, third bottom section (N) defined at one side thereof by an eleventh transversely-extending crease (A3),
• the third bottom section (N) having a second transversely-extending slit (8A), the third bottom section (N) also having a third projecting portion (27) that is partly defined by two further longitudinally-extending cuts (52),
• (b) a third inner side wall member (3T') located adjacent to and on the outside of the third bottom section (N),
• the third inner side wall member (3T') being divided from the third bottom section (N) by the eleventh transversely-extending crease (A3),
• (c) a third outer side wall member (3S') located adjacent to and on the outside of the third inner side wall member (3T') and divided from the same third inner side wall member (3T') by a third transversely-extending double crease (B3),
• (d) a pair of longitudinally-extending fourth slits (53, 53) intersecting the third double crease (B3),
• (e) a further opening (49) starting from an outer line of the third double crease (B3) and mostly extending into the third inner side wall member (3T'),
• (f) a fourth outer side wall member (4S') opposed to the third outer side wall member (3S'),
• (g) a support piece member (25) embraced by the fourth outer side wall member (4S') and defined by an L-shaped cut (26) and a third longitudinally-extending crease (K),
• the support piece member (25) also having a fourth longitudinally-extending crease (K),
• (h) first and second end members (16C, 16D) opposed to each other, the first and second end members (16C, 16D) being located between the fourth outer side wall member (4S') and the central, third bottom section (N),
• said first and second end members (16C, 16D) being divided from the fourth outer side wall member (4S') by twelfth and thirteenth transversely-extending creases (55, 54), respectively, and from the central third bottom section (N) by a fourteenth transversely-extending crease (H3),
• each of said first and second end members (16C, 16D) having a fifteenth transversely-extending crease (H4) therein,
• each of said first and second end members (16C, 16D) being defined partly by a respective one of a pair of longitudinally-extending fifth slits (15C, 15D), each of said fifth slits (15C, 15D) having a larger portion (63),
• (i) a fourth inner side wall member (4T') located inside the fourth outer side wall member (4S'),
• the fourth inner side wall member (4T') being generally divided from the fourth outer side wall member (4S') by a fourth double crease (B4) and mostly defined by the fourth double crease (B4), one of the pair of fifth slits (15C), a sixteenth transversely-extending crease (D), and a longitudinally-extending sixth slit (58),
• (j) a fourth projecting piece (10A) located adjacent to the fourth inner side wall member (4T') and extending into the fourth inner side wall member (4T'),
• the fourth projecting piece (10A) having plural sides defined by one continuously-extending cut (11A) and also having one side defined by a transversely-extending crease (12A),
• (k) a second support surface member (V) located inside the fourth inner side wall member (4T') and divided from the fourth inner side wall member (4T') by a transversely-extending crease corresponding to the sixteenth transversely-extending crease (D),
• the second support surface member (V) being defined by the sixteenth crease (D), one of the fifth slits (15C), an eighteenth transversely-extending crease (C), and longitudinally-extending sixth slit (58),
• (l) a fourth support wall member (66) located between the second support surface member (V) and the central, third bottom section (N),
• the fourth support wall member (66) being defined by the eighteenth crease (C), the fifth slit (15C), a nineteenth transversely-extending crease (E), further longitudinally-extending cuts (52), a third transversely-extending slit (28) and longitudinally-extending sixth slit (58),
• the third slit (28) being located between the fourth support wall member (66) and the third projecting portion (27) of the central, third bottom section (N),
• (m) a first longitudinally-extending cushion member (21A) divided from the fourth inner side wall member (4T'), second support surface member (V) and fourth support wall member (66) by the sixth slit (58),
• the first cushion member (21A) being defined by the sixth slit (58), twentieth and twenty-first transversely-extending creases (F3, F4), and a seventh longitudinally-extending slit (57),
• (n) a second longitudinally-extending cushion member (21B) located adjacent to the first cushion member (21A) but staggered with the first cushion member (21A),
• the second cushion member (21B) being divided from the first cushion member (21A) by the seventh longitudinally extending slit (57) and defined by the seventh slit (57), twenty-second and twenty-third transversely-extending creases (F1, F2), and an eighth longitudinally-extending slit (56),
• (o) a top member (T) located between the first and second cushion member (21A, 21B) and the second outer side wall member (4S'),
• the top member (T) being divided from the first and second cushion members (21A and 21B) by the twenty-third and twenty-first transversely-extending creases (F2 and F4) and from the fourth outer side wall member (4S') by an outer line of the fourth double crease (B4),
• the fourth double crease (B4) being interrupted by the top member (T) and fourth projecting piece (10A), and
• (p) a fifth inner side wall member (5T) surrounded by the top member (T), second cushion member (21B), central, third bottom section (N), second end member (16D), and fourth outer side wall member (4S'),
• the fifth inner side wall member (5T) being defined by the eighth slit (56), a crease (A4), fifth slit (15D), and fourth double crease (B4),
• IV) a fourth flat sheet (102B) of corrugated paper foldable into a fourth packing element (202B) that in turn can be mounted in the third packing element (201B) to assemble a second packing (300B), said fourth flat sheet (102B) including:
• (a) a central, longitudinally-extending fourth bottom section (M) defined by a fifth longitudinally-extending crease (J), twenty fourth and twenty fifth transversely-extending creases (A5, A6), a ninth longitudinally-extending slit (44), and an additional opening (68) that is formed continuously with the ninth slit (44) and has a similar shape to the top member (T) of the third flat sheet (101B),
• (b) a longitudinally-extending fifth support wall member (53) extending parallel with the fourth bottom section (M) and divided from the fourth bottom section (M) by the fifth crease (J),
• the fifth support wall member (53) having a fifth projecting portion (53a),
• the fifth support wall member (53) being defined by the fifth crease (J), two opposed L-shaped openings (24', 24'), and a fifth longitudinally-extending cut (39),
• each of the twenty-fourth and twenty-fifth creases (A5, A6) being interrupted by one of the two opposed L-shaped openings (24', 24'),
• (c) third and fourth longitudinally-extending side members (20C, 20D) located with the fourth bottom section (M) and fifth support wall member (53) therebetween,
• the third side member (20C) having a second crease (I),
• the third side member (20C) also having a sixth projecting portion (20c) that is associated with the second crease (I),
• the third side member (20C) extending adjacent to the fourth bottom section (M) but separated therefrom by the ninth slit (44) and the additional opening (68),
• the third side member (20C) being defined by the ninth slit (44), the additional opening (68), and twenty -sixth and twenty-seventh transversely-extending creases (47 and 48),
• the fourth side member (20D) extending adjacent to the fifth support wall member (53) but divided therefrom by the fifth cut (39),
• (d) a sixth inner end wall member (6T) provided on one side of the fourth bottom section (M),
• the sixth inner end wall member (6T) being located adjacent to the fourth bottom section (M) and fourth side member (20D) and divided from the fourth bottom section (M) and fourth side member (20D) by the twenty-fourth crease (A5),
• the sixth inner end wall member (6T) also being located contiguous to the third side member (20C) but divided therefrom by the twenty-sixth crease (47),
• the twenty-sixth crease (47) being located somewhat more outwards than the twenty-fourth crease (A5),
• both the ninth slit (44) and one of the two L-shaped openings (24', 24') extending into the sixth inner end wall member (6T),
• (e) a third outer end wall member (5S) located outside of the sixth inner end wall member (6T) and divided therefrom by a twenty-eighth transversely-extending crease (B5),
• the third outer end wall member (5S) having a first pair of slits (59),
• (f) a seventh inner end wall member (7T) provided on an opposed side of the sixth inner end wall member (6T),
• the seventh inner end wall member (7T) being located adjacent to the fourth bottom section (M) and fourth side member (20D) and divided from the fourth bottom section (M) and fourth side member (20D) by the twenty-sixth crease (A6),
• the seventh inner end wall member (7T) also being contiguous to the third side member (20C) but divided therefrom by the twenty-seventh crease (48),
• the twenty-seventh crease (48) being located somewhat more outwards than the twenty-fifth crease (A6),
• both the ninth slit (44) and one of the two L-shaped openings (24', 24') extending into the seventh inner end wall member (7T), and
• (g) a fourth outer end wall member (6S) located outside of the seventh inner end wall member (7T) and divided therefrom by a twenty-ninth transversely-extending crease (6B),
• the fourth outer end wall member (6S) having a second pair of slits (59, 59), one of the slits of the first and second pair of slits (59) of each said outer end wall member (6S, 5S) being aligned with the ninth slit (44), and the other slit of the first and second pair of slits (59, 59) of each said outer end wall member (6S, 5S) being aligned with one portion of the short slits (24', 24').