US20100072103A1 - Packing material - Google Patents

Packing material Download PDF

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Publication number
US20100072103A1
US20100072103A1 US12/562,356 US56235609A US2010072103A1 US 20100072103 A1 US20100072103 A1 US 20100072103A1 US 56235609 A US56235609 A US 56235609A US 2010072103 A1 US2010072103 A1 US 2010072103A1
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United States
Prior art keywords
cushioning medium
cushioning
medium
packaging material
flow path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/562,356
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English (en)
Inventor
Tai ji Watanabe
Takeshi Narita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Assigned to CANON KABUSHIKI KAISHA reassignment CANON KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NARITA, TAKESHI, WATANABE, TAIJI
Publication of US20100072103A1 publication Critical patent/US20100072103A1/en
Priority to US14/338,441 priority Critical patent/US20140326632A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/051—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric
    • B65D81/052—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using pillow-like elements filled with cushioning material, e.g. elastic foam, fabric filled with fluid, e.g. inflatable elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/03—Wrappers or envelopes with shock-absorbing properties, e.g. bubble films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D2581/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/051—Details of packaging elements for maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/052—Materials
    • B65D2581/055—Plastic in general, e.g. foamed plastic, molded plastic, extruded plastic

Definitions

  • the present invention relates to a packaging material for wrapping an object for shipment. More specifically, it relates to a packaging material having a check valve which allows cushioning medium to flow into the cushioning medium storage portions of the packaging material, but prevents the cushioning medium from flowing backward from the cushioning medium storage portions.
  • the conventional check valves such as those described above, are provided with a means for making complicated or narrow the passage, or passages, of the check valve to prevent the cushioning medium from flowing backward from the cushioning medium storage portion.
  • these check valves are problematic in that they are low in the efficiency with which the cushioning medium is injected into the cushioning medium storage portions.
  • As one of the means for preventing the provision of a check valve from losing the efficiency is to increase a check valve in size, and also, to increase in length. This means is problematic in that the employment of this means results in increase in the amount of the check valve material, which results in increase in the check valve cost.
  • the primary object of the present invention is to provide a process cartridge packaging material, which is different from conventional process cartridge packaging materials in the pattern in which a check valve is welded to each of its cushioning medium storage portions, and also, is superior to conventional process cartridge packaging materials, in the efficiency with which cushioning medium can be injected into the cushioning medium storage portions.
  • FIG. 1 is a plan of a piece of packaging material in the first preferred embodiments of the present invention.
  • FIG. 2 is a sectional view of one of the cushioning units of the packaging material in the first preferred embodiment.
  • FIG. 3 is a plan of one of the cushioning units of the packaging material in the first preferred embodiment.
  • FIG. 4 is a plan of the cushioning medium passage of one of the cushioning units of the packaging material in the first preferred embodiment.
  • FIG. 5 is a sectional view of one of the cushioning medium storage portions of the packaging material in the first preferred embodiment.
  • FIG. 6 is a sectional view of one of the cushioning medium storage portions of a comparative packaging material.
  • FIG. 7 is a perspective view of a roll of packaging material in the first preferred embodiment, which is on a metallic rod K 2 .
  • FIG. 8 is a perspective view of a folded piece of packaging material in the first preferred embodiment, showing the method for wrapping a cartridge with the packaging material.
  • FIG. 9 is a plan of the folded piece of packaging material in the first preferred embodiment, showing the method for wrapping a cartridge with the packaging material.
  • FIG. 10 is perspective view of the folded piece of packaging material in the first preferred embodiment, showing the method for wrapping a cartridge with the packaging material.
  • FIG. 11 is a plan of one of the cushioning units of the packaging material in the first preferred embodiment.
  • FIG. 12 is a sectional view of one of the cushioning units of the packaging material in the first preferred embodiment.
  • FIG. 13 is a sectional view of one of the cushioning medium storage portions of the packaging material in the first preferred embodiment.
  • FIG. 14 is a sectional view of one of the cushioning medium storage portions of the comparative packaging material.
  • FIG. 15 is a plan of one of the cushioning medium storage portions of the packaging material in the third preferred embodiments.
  • FIG. 16 is a plan of the cushioning medium passage of one of the cushioning units of the packaging material in the third preferred embodiment.
  • FIG. 17 is a plan of the packaging portion proper of the packaging material in the fourth preferred embodiment.
  • FIG. 18 is a sectional view of one of the cushioning units of the packaging material in the fourth preferred embodiment.
  • FIG. 19 is a cross-sectional view of the cushioning medium storage portion of one of the cushioning units of the packaging material in the fourth preferred embodiment.
  • FIGS. 20( a )- 20 ( c ) are plans of the cushioning medium passage of the check valve of the cushioning units of the packaging material in the fifth preferred embodiment.
  • FIGS. 21( a ) and 21 ( b ) are plans of the cushioning medium passage of the check valve of one of the cushioning units of the packaging material in the fifth preferred embodiment.
  • FIGS. 22( a ) and 22 ( b ) are plans of the cushioning medium passage of the check valve of one of the cushioning units of the packaging material in the fifth embodiment.
  • FIG. 23 is a perspective view of the sealed packaging material in accordance with the present invention, which contains a cartridge.
  • FIG. 24 is a perspective view of the sealed packaging material in accordance with the present invention, which contains a cartridge.
  • a packaging material S 1 in this embodiment is made up of two pieces 1 and 2 of flexible plastic film, which are thermally welded in layers.
  • the areas 6 , 8 , and 9 are the areas of the two films 1 and 2 , by which the two films 1 and 2 are welded.
  • the packaging material S 1 has multiple cushioning medium storage portions 3 , which are placed side by side. Each cushioning medium storage portion 3 is enabled to store cushioning medium, which in this embodiment is air. It is formed by welding the two flexible films 1 and 2 (which hereafter will be referred to simply as films 1 and 2 ) across the welding areas 8 , 6 , and 9 . It is rectangular, with its longer edges being substantially longer than its shorter edges.
  • each cushioning medium storage portion 3 is separated from the next cushioning medium storage portions by the welding areas 9 .
  • One of the lengthwise ends of the packaging material S 1 is provided with multiple cushioning medium entrances 5 for guiding the external air into each of the multiple cushioning medium storage portions 3 to inflate the cushioning medium storage portions 3 .
  • the outward end of each of the cushioning medium (air) entrance 5 is provided with an air injection opening 11 .
  • Each air entrance 5 is separated from the next ones by the welding areas 7 .
  • the welding areas 9 are roughly parallel to the lengthwise direction of the cushioning medium storage portion 3 , whereas the welding areas 6 and 8 extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 .
  • the welding area 6 is on the opposite lengthwise end of the packaging material S 1 from where the abovementioned air entrances 5 are present.
  • the films 1 and 2 in this embodiment are flexible, and have three layers. That is, each film is formed by sandwiching a Nylon layer with polyethylene and polypropylene layers.
  • the Nylon layer is very difficult for the cushioning medium to flow through, whereas the polyethylene and polypropylene layers are easy to thermally weld together.
  • each cushioning medium storage portion 3 is provided with a check valve 4 , which is positioned across the border between the cushioning medium storage portion 3 and the corresponding cushioning medium entrance 5 .
  • This check valve 4 is for allowing the air to pass only in the direction to enter the cushioning medium storage portion 3 . That is, once the air is introduced into the cushioning medium storage portion 3 , the check valve 4 utilizes the air pressure in the cushioning medium storage portion 3 to prevent the air in the cushioning medium storage portion 3 from flowing backward, that is, toward the air entrance 5 , as shown in FIG. 2 , which is a sectional view of one of the cushioning units of the packaging material S 1 , at Line B-B in FIG. 1 .
  • FIG. 3 is an enlarged sectional view of the combination of the cushioning medium storage portion 3 and corresponding air entrance 5 .
  • the details of the structure of the check valve 4 are as shown in FIGS. 2 and 3 .
  • the check valve 4 is manufactured through the following steps. To the film 2 , the top and bottom check valves 4 a and 4 b are thermally welded in advance by the welding areas 12 a - 12 c . Incidentally, the top and bottom check valves 4 a and 4 b are also formed of plastic film.
  • the top check valve 4 a is attached to the air entrance portion ( 5 ) of the film 1 by the welding area 10
  • the bottom check valve 4 b is attached to the film 2 by the welding area 10 .
  • the top check valve 4 a is provided with a seal portion 4 a 1 , which is coated or printed on the top check valve 4 a .
  • the seal portion 4 a 1 is formed of a material which does not melt at the temperature level at which the two films 1 and 2 are welded across the welding areas 8 and 10 .
  • the top and bottom check valves 4 a and 4 b become welded to each other. Further, even in the welding areas 8 , which is the border area between the air entrance 5 and cushioning medium storage portion 3 , the portions of the top and bottom check valves 4 a and 4 b , across which the sealing portion 4 a 1 is present, do not become welded to each other. Therefore, an air passage P 1 , which allows the external air to enter the cushioning medium storage portion 3 through the air entrance 5 , remains secured.
  • the sealing portion 4 a 1 may be coated or printed on the bottom check valve 4 b instead of the top check valve 4 a . Even if the sealing portion 4 a 1 is attached to the bottom check valve 4 b , its functions and performance remains the same.
  • the lengthwise direction of the cushioning medium storage portion 3 is roughly the same as the direction in which the air passes through the check valve 4 , enabling therefore the air to be efficiently introduced into the cushioning medium storage portion 3 .
  • the width W 1 of each of the air injection openings 11 is narrower than the width W 2 of the border area (connective area) between the cushioning medium storage portion 3 and air entrance 5 .
  • the multiple air injection openings 11 are positioned so that there is virtually no gap between the adjacent two air injection openings 11 , making it possible to reduce in size the air injecting portion of an air injecting apparatus (unshown) for injecting the air into all the air injection openings 11 at the same time.
  • the direction in which the cushioning medium passes through the check valve 4 toward the cushioning medium storage portion 3 is made roughly the same as the direction in which the cushioning medium is introduced through the air injection openings. Therefore, the air is efficiently introduced into the cushioning medium storage portion 3 .
  • the welding area 7 between the adjacent two air injection openings 11 is tilted, relative to the lengthwise direction of the cushioning medium storage portion, from the border area between the cushioning medium storage portion 3 and the corresponding air entrance 5 toward the central air injection opening 11 .
  • the welding areas 12 a - 12 c across which the top and bottom check valves 4 a and 4 b are thermally welded to the film 2 will be described regarding their shapes.
  • a cushioning medium (air) passage 20 for introducing air into the cushioning medium storage portion 3 is formed by thermally welding the top and bottom check valves 4 a and 4 b to the film 2 across the welding areas 12 a - 12 c .
  • the width of the cushioning medium (air) passage 20 is less than the width of the check valves 4 a and 4 b .
  • the cushioning medium (air) passage 20 is formed between the top and bottom check valves 4 a and 4 b , and it is also obvious that the width of the cushioning medium (air) passage 20 is less than that of the cushioning medium storage portion 3 .
  • the top check valve 4 a becomes shaped as drawn with double-dot chain lines in FIG. 5 , which is a sectional view of one of the multiple cushioning units, at Plane A-A in FIG. 3 .
  • the cushioning medium (air) passage 20 has a primary portion 20 c , and wide portions 20 a and 20 b .
  • the wide portions 20 a and 20 b extend from the primary portion 20 c in the direction perpendicular to the lengthwise direction of the cushioning medium storage portion 3 .
  • the primary portion 20 c of the cushioning medium passage 20 is formed in the direction parallel to the lengthwise direction of the cushioning medium storage portion 30 . It is the cushioning medium passage for guiding air in the lengthwise direction of the cushioning medium storage portion, and is less in width than the check valves 4 a and 4 b . It is formed by the welded areas 12 a 1 , 12 a 2 , 12 a 6 , and 12 a 10 , and welding areas 12 b 1 , 12 b 2 , 12 b 6 , and 12 b 10 , respectively.
  • the wide portions 20 a are formed of the portions 12 a 3 - 12 a 5 , and portions 12 a 7 - 12 a 9 , of the welded portion 12 a , which extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 .
  • the wide portions 20 b are formed of the portions 12 a 3 - 12 b 5 , and portions 12 b 7 - 12 b 9 , of the welded portion 12 b , which extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 .
  • FIG. 6 is a cross-sectional view of the cushioning medium storage portion 103 of a comparative packaging material, the cushioning medium passage of which does not have the wide portions.
  • the films 101 and 102 become arcuate in such a manner that the films 102 and 101 are smallest and largest, respectively, in curvature, as shown in FIG. 6 .
  • the top and bottom valves 104 a and 104 b are welded in advance while the film 102 is flat, as described above.
  • the portions 104 a 1 and 104 b 1 of the top and bottom check valves 104 a and 104 b are made loose from the film 102 and bend inward of the cushioning medium storage portion 3 .
  • the state of contact between the top and bottom check valves 104 a and 104 b becomes less airtight.
  • the packaging material in this embodiment is provided with welded portions 12 a 3 , 12 a 5 , 12 a 7 , 12 a 9 , 12 b 3 , 12 b 5 , 12 b 7 , and 12 b 9 .
  • the provision of the abovementioned welded portions, which extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 generates such a force that works in the direction intersectional to the lengthwise direction of the cushioning medium storage 3 , that is, the direction to extend the top and bottom check valves 4 a and 4 b in the direction intersectional to the lengthwise direction of the cushioning medium storage 3 .
  • the top and bottom check valves 4 a and 4 b are not made loose like the portions 104 a 1 and 104 b 1 of the top and bottom check valves 104 a and 104 b of the comparative packaging material ( FIG. 6 ) as shown in FIG. 5 . Therefore, it is ensured that the top and bottom check valves 4 a and 4 b remain airtightly in contact with each other.
  • the cushioning medium passage 20 is provided with two wide portions 20 a and 20 b on each side of the primary portion 20 c . However, the wide portion count on each side may be only one. Further, there is a regulating portion 12 c on the downstream side of the outlet 20 c 1 of the primary portion 20 c of the cushioning medium passage 20 .
  • the regulating portion 12 c turns the air low so that the air flows in the widthwise direction of the cushioning medium storage portion 3 . It is also formed by welding in advance the top and bottom check valves 4 a and 4 b to the film 2 .
  • the regulating portion 12 c which is formed by welding, also extends in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 . Therefore, it also functions to ensure that the top and bottom check valves 4 a and 4 b remain airtightly in contact with each other.
  • the regulating portion 12 c being structured as described above, as the external introduced through the air entrance 5 is smoothly filled into the cushioning medium storage portion 3 ; the provision of the regulating portion 12 c does not interfere with the efficiency with which the external air is introduced into the cushioning medium storage portion 3 . Further, since the regulating portion 12 c changes the direction of the air flow on the downstream side of the outlet 20 c 1 of the primary portion 20 c of the cushioning medium passage 20 so that the air flows in the widthwise direction of the cushioning medium storage portion 30 , it improves the check valves 4 in terms of the prevention of the back flow of the air from the cushioning medium storage portion 3 .
  • an electrophotographic image forming apparatus is an apparatus for forming an image on recording medium, with the use of an electrophotographic image forming method.
  • the examples of an electrophotographic image forming apparatus include an electrophotographic copying machine, an electrophotographic printer (laser beam printer, LED printer, etc., for example), a facsimile apparatus, a wordprocessor, etc.
  • a process cartridge is a cartridge in which at least one processing means among a charging means, a developing means, and a cleaning means, and an electrophotographic photosensitive member, are integrally disposed, and which is removably mountable in the main assembly of an image forming apparatus.
  • the packaging material S 1 that is, a piece of packaging material S, which is wide enough to completely wrap (package) a process cartridge 35 (which will be described later), is cut away from a long roll of packaging material S, which is made up of multiple packaging units having the above described cushioning medium storage portion, check valve 4 , and cushioning medium (air) entrance 5 .
  • a pair of scissors K 1 is used to cut the packaging material S to obtain the packaging material S 1 with a proper width.
  • a cutter, or a cutting apparatus dedicated to the cutting of the packaging material S may be used to cut the packaging material S.
  • metallic rod K 2 in the center of the roll of packaging material S, making it easier to unroll the roll of packaging material S by a necessary length, and also, to cut the packaging material S. Moreover, the presence of the metallic rod K 2 makes it easier to set the roll of packaging material S in a preset position of the automatic cutting machine or the like, to cut the packaging material S.
  • the packaging material S 1 After the Cutting of the Packaging Material S 1 away from the roll of the packaging material S, the packaging material S 1 is folded in half roughly at the center line in terms of the lengthwise direction of the cushioning medium storage portion 3 so that the rear end portion 53 of the cushioning medium storage portion 3 , in terms of the lengthwise direction of the cushioning medium storage portion 3 , is placed in the position shown in FIG. 8 .
  • the top and bottom layers of the folded packaging material S 1 are thermally welded together along both edges (welding areas 12 and 13 ) in terms of the direction perpendicular to the lengthwise direction of the cushioning medium storage portion 3 , as shown in FIG. 9 .
  • the packaging material S 1 becomes a pouch, which is open at one of its lengthwise ends.
  • the welding areas 12 and 13 extend in the lengthwise direction of the cushioning medium storage portion 3 .
  • the cartridge 35 which is the object to be packaged, is to be inserted into the pouch through an opening with which one of the lengthwise end of the pouch is provided. That is, the cartridge 35 is inserted so that its lengthwise direction matches the lengthwise direction of the cushioning medium storage portion 3 .
  • the opening 18 is sealed by thermally welding the top and bottom layers of the packaging material S 1 across the welding area 14 , as shown in FIG. 23 , to prevent the cartridge 35 from popping out of the pouch during the cartridge shipment.
  • the location of the welding area 14 is to be selected so that its position overlaps with the sealing portion 4 a 1 , which was described referring to FIG. 2 .
  • Welding the top and bottom layers of the packaging material S 1 so that the welding seam runs across the sealing portion 4 a 1 makes it possible to inject the cushioning medium into the cushioning medium storage portion 3 even after the closing of the opening 18 .
  • the air which is the cushioning medium in this embodiment, is to be injected into all the cushioning medium storage portions 3 through the cushioning medium injection openings 11 of the cushioning medium (air) entrances 5 ; the air is introduced into each of the cushioning medium storage portions 3 through the corresponding check valve 4 .
  • the reason why the air is introduced after the placement of the cartridge 35 in the pouch made of the packaging material S 1 is that the air introduction into each cushioning medium storage portion 3 inflates the cushioning medium storage portion 3 , which in turn reduces the pouch in internal measurements, which in turn makes it virtually impossible to insert the cartridge 35 into the pouch.
  • the cartridge 35 is securely held in the pouch.
  • the cushioning medium may be nitrogen gas, oxygen gas, or the like. Nitrogen gas may be a good choice because nitrogen is large in molecular weight, being therefore unlikely to leak from the cushioning medium storage portion 3 , which is made of plastic film or the like. Further, the cushioning medium may be a liquid or a fluid substance other than gaseous substances.
  • the cushioning medium (air) entrances 5 and cushioning medium storage portions 3 are to be completely sealed by welding shut the cushioning medium injection opening 11 ( FIGS. 11 and 19 ) across the welding area 15 .
  • the check valve 4 had two portions, that is, the top and bottom check valves 4 a and 4 b . In this embodiment, however, the check valve 4 has only one valve 4 d.
  • FIG. 11 is a plan of one of the multiple cushioning units of packaging material S 1 , as seen from the direction perpendicular to the lengthwise direction of the unit. It shows the central cushioning medium entrance 5 and corresponding cushioning medium storage portion 3 .
  • FIG. 12 is a sectional view of one of the multiple cushioning units of packaging material S 1 , shown in FIG. 11 , at Plane C-C in FIG. 11 , after the introduction of the air into the unit.
  • the film 2 has the check valve 4 d , which was welded in advance to the film 2 by thermally melting the film 2 across welding areas 12 a - 12 c.
  • the check valve 4 d is welded to the film 2 across the welding area 10 , in the cushioning medium entrance 5 .
  • the check valve 4 d has a sealing portion 4 d 1 made up of a material which does not melt even at the temperature level at which the films 1 and 2 are thermally welded to each other across the welding areas 8 and 9 .
  • the sealing portion 4 d 1 is coated or printed on the check valve 4 d . Therefore, even if heat is applied to the films 1 and 2 across the welding area 10 , it does not occur that the check valve 4 d and film 2 becomes welded to each other.
  • the welding areas 12 a - 12 c , across which the check valve 4 d is thermally welded to the film 2 are the same in shape as those in the first preferred embodiment.
  • a passage 20 for introducing the air into the cushioning medium storage portion 3 is formed between the check valve 4 d and film 2 .
  • the width of this passage 20 is obviously less than that of the cushioning medium storage portion 3 , and is formed between the check valve 4 d and the film 2 . That is, when the air passes through the passage 20 , the check valve 4 d becomes shaped as indicated by a pair of double-dot chain lines as shown in FIG. 13 , which is a cross-sectional view of the single cushioning unit, at Plane D-D in FIG. 11 .
  • FIG. 14 is a cross-sectional view of the cushioning medium storage portion 203 of a comparative packaging material, the cushioning medium passage portion of which has no wide portion.
  • the films 201 and 202 are arcuately bent as shown in FIG. 14 , in such a manner that the film 202 and check valve 204 d become smallest and largest, respectively, in curvature.
  • the check valve 204 d is welded in advance when the film 202 is flat, as described before. Therefore, as the cushioning medium storage portion 203 is filled with the air, the check valve 204 d is made to loosely bent inward of the cushioning medium storage portion 203 across its portion 204 d 1 . As a result, the check valve 204 d fails to remain airtightly in contact with the film 202 .
  • the films 1 and 2 in this embodiment are welded to each other across the welding areas 12 a 3 , 12 a 5 , 12 a 7 , 12 a 9 , 12 b 3 , and 12 b 5 , 12 b 7 , and 12 b 9 of each of the cushioning units of the cushioning material, as the films 1 and 2 in the first preferred embodiment are welded to each other as shown in FIG. 4 .
  • the provision of the welded portions which extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 generates such a force that works in the direction to extend the check valve 4 in the direction intersectional to the lengthwise direction of the cushioning medium storage portion 3 .
  • the provision of the welded portions can keep the interface between the check valve 4 and film 2 airtightly sealed as shown in FIG. 13 ; it prevents the formation of loose portions, such as those formed in the case of the comparative example as shown in FIG. 14 . In other words, it keeps the check valve 4 d and film 2 airtightly in contact with each other.
  • the other structural features and effects are the same as those of the packaging material in the first preferred embodiment.
  • each cushioning unit is provided with two cushioning medium passages 21 and 22 .
  • the patterns of the welding areas 24 a - 24 c across which the check valve 4 e is thermally welded to the film 2 are such that each cushioning unit is provided with the two cushioning medium passages 21 and 22 , which are positioned side by side.
  • the central welding area 24 b is integration of the welding areas 12 a and 12 b in the first preferred embodiment, and is shaped as such.
  • the primary portion 21 c of the passage 21 is created by welded portions 24 a 1 , 24 a 2 , 24 a 6 , and 24 a 10 , and welded portions 24 b 1 , 24 b 2 , 24 b 6 , and 24 b 10 .
  • the primary portion 22 c of the passage 22 is created by welded portions 24 c 1 , 24 c 2 , 24 c 6 , and 24 c 10 , and welded portions 24 b 1 , 24 b 2 , 24 b 6 , and 24 b 10 .
  • the welding area 24 a is made up of portions 24 a 3 - 24 a 5 , and portions 24 a 7 - 24 a 9
  • the welding area 24 b is made up of portions 24 b 3 - 24 b 5 , and portions 24 b 7 - 24 b 9
  • the welding area 24 c is made up of portions 24 c 3 - 24 c 5 , and portions 24 c 7 - 24 c 9
  • the welding area 24 b is provided with portions 24 b 3 - 24 b 5 , and portions 24 b 7 - 24 b 9 .
  • the check valve 4 e is welded across the areas 23 c 1 and 23 c 2 , which are on the downstream end sides of the primary portion 21 c and 22 c , respectively, creating a pair of cushioning medium flow regulating portions 23 c 1 and 23 c 2 .
  • the provision of two cushioning medium passages 21 and 22 improves each cushioning unit in cushioning medium injection efficiency.
  • the number of the cushioning medium passages does not need to be limited to two; it may be three or more.
  • FIG. 17 is a plan of one of the multiple cushioning units of the packaging material, as seen from above.
  • FIG. 18 is a sectional view of one of the multiple cushioning units of the packaging material, which is inflated with air, at Plane H-H in FIG. 17 .
  • FIG. 19 is a sectional view of one of the multiple cushioning units of the packaging material, which is inflated with air, at Plane G-G in FIG. 17 .
  • check valve in this preferred embodiment is made up of a top check valve 4 f and a bottom check valve 4 g is the same as the check valve in the first preferred embodiment is made up of the top and bottom check valves 4 a and 4 b .
  • the manner in which the top and bottom check valves 4 f and 4 g are thermally welded in advance to the film 2 across the welding areas 12 a - 12 c of the cushioning medium storage portion 3 is the same as the manner in which the top and bottom check valves 4 a and 4 b are thermally welded to the film 2 in the first preferred embodiment.
  • the fourth preferred embodiment is different from the first preferred embodiment only in that the packaging material in the fourth embodiment is not provided with a cushioning medium entrance passage, and that the top and bottom check valves 4 f and 4 g themselves have the function of the cushioning medium entrances. That is, the top and bottom check valves 4 f and 4 g are welded to the film 2 not only across the welding areas 34 a - 34 c , but also, across the welding areas 34 d - 34 e , being thereby provided with a cushioning medium (air) injection opening 34 g . Thus, the air is directly injected into the top and bottom check valves 4 g and 4 g . Therefore, the packaging material in this embodiment is superior in cushioning medium injection efficiency to those in the preceding embodiments.
  • the shape of the cushioning medium (air) passage 34 f is the same as that in the first embodiment.
  • the fifth preferred embodiment is different from the preceding embodiments in the shape of the cushioning medium passage.
  • the various shapes for the cushioning medium passage in the fifth embodiments are shown in FIGS. 20-22 .
  • each of the primary portions 25 d - 32 d of cushioning medium passages 25 - 32 is made parallel to the lengthwise direction of the cushioning medium storage portion 3 . It is the passage formed between two check valves, or between a check valve and film 2 , to guide the air in the lengthwise direction of the cushioning medium storage portion 3 .
  • Each of the cushioning medium passages 25 - 32 in this embodiment is provided with portions wider than the primary portions 25 d - 32 d .
  • the check valve is welded to the film 2 across the welding areas, which extend in the directions intersectional to the lengthwise direction of the cushioning medium storage portion 3 .
  • cushioning medium flow regulating portions 25 c - 32 c for causing the air to flow in the widthwise direction of the cushioning medium storage portion 3 are provided on the downstream side of the outlet of the primary portions 25 d - 32 d .
  • These cushioning medium flow regulating portions 25 c - 32 c are also formed by welding the check valve, or check valves, to the film 2 . They are also provided with the portions which extend in the direction intersectional to the lengthwise direction of the cushioning medium storage portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Buffer Packaging (AREA)
US12/562,356 2008-09-19 2009-09-18 Packing material Abandoned US20100072103A1 (en)

Priority Applications (1)

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US14/338,441 US20140326632A1 (en) 2008-09-19 2014-07-23 Packing material

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JP2008-241019 2008-09-19
JP2008241019A JP2010070232A (ja) 2008-09-19 2008-09-19 梱包部材

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US14/338,441 Abandoned US20140326632A1 (en) 2008-09-19 2014-07-23 Packing material

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EP (1) EP2340218B1 (enrdf_load_stackoverflow)
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CN (1) CN102159470B (enrdf_load_stackoverflow)
WO (1) WO2010032883A1 (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8201690B1 (en) * 2010-06-04 2012-06-19 Gess Larry C End user filled protective packaging with self-sealing air bubbles
US8215487B1 (en) * 2010-10-30 2012-07-10 Gess Larry C Inflatable packaging with self-sealing air bubbles
US8251216B1 (en) * 2011-03-16 2012-08-28 Yaw Shin Liao Gas column structure for shockproof sleeve
WO2013022398A1 (en) * 2011-06-22 2013-02-14 Pronova Aktiebolag Device for producing a shock-absorbing inflatable package and method for filling it
US8708145B2 (en) * 2012-09-14 2014-04-29 Shenzhen China Star Optoelectronics Technology Co., Ltd. Package cushioning structure for module
US8936156B1 (en) * 2012-04-05 2015-01-20 Inflatable Packaging, Inc. Inflatable packaging cushion with product suspension pocket
US20150291335A1 (en) * 2014-04-14 2015-10-15 Pregis Innovative Packaging Llc Bi-Directional Flexible Structure with Angled Perforations
US20160207682A1 (en) * 2015-01-16 2016-07-21 Papier-Mettler Kg Plastic pouch and plastic bag, in particular for online delivery trade
US20180370709A1 (en) * 2015-03-31 2018-12-27 Reco Co., Ltd. Shock-absorbing packaging material having multi-layered air cells
WO2020018757A1 (en) * 2018-07-20 2020-01-23 The Procter & Gamble Company Flexible package and method of manufacture
EP3774578A1 (fr) * 2018-04-11 2021-02-17 Harry Plast Pochette souple d'expedition d'articles de type enveloppe avec dispositif de protection gonflable
US20210284420A1 (en) * 2020-03-13 2021-09-16 The Procter & Gamble Company Flexible Package
US11247829B2 (en) * 2016-10-24 2022-02-15 Sealed Air Corporation (Us) Inflatable pouches with reduced exterior distortions
US11325769B2 (en) * 2016-10-27 2022-05-10 Samsung Electronics Co., Ltd. Cushioning packaging material
US11390447B2 (en) * 2014-01-19 2022-07-19 Shanghai Air-Paq Composite Material Co., Ltd. Packaging box with air buffering performance and application thereof
US20230114889A1 (en) * 2021-10-11 2023-04-13 The Procter & Gamble Company Shaped flexible shipping package and method of making
USD986746S1 (en) * 2021-10-27 2023-05-23 Kunshan Airbag Packing Corp. Air column packing bag
US11858713B2 (en) 2020-10-30 2024-01-02 The Procter & Gamble Company Inflation feature for package, inflation rig assembly, and method of inflating

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6186526B1 (ja) * 2016-05-25 2017-08-23 大日本パックェージ株式会社 一体型逆止弁機能を有するエアー緩衝材
JP6985855B2 (ja) * 2017-08-30 2021-12-22 大王製紙株式会社 逆止弁
TWI883410B (zh) * 2023-03-24 2025-05-11 史蒂芬麥可 斯戴克二世 具有止回閥門之流體容器裝置、具有止回閥門之流體容器裝置之卷材之製造方法以及生產流體包裝產品之方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060191816A1 (en) * 2003-05-19 2006-08-31 Canon Kabushiki Kaisha Packing method, packing member and manufacturing method therefor
US20070065047A1 (en) * 2005-09-19 2007-03-22 Akira Kojima Structure of air-packing device
US20080080792A1 (en) * 2006-09-29 2008-04-03 Yao Sin Liao Air-tightness strengthening air enclosure
US20080095474A1 (en) * 2006-10-20 2008-04-24 Yao Sin Liao Multi-sectional air enclosure and check valve apparatus
US20080121307A1 (en) * 2006-11-24 2008-05-29 Yao Sin Liao Air enclosure provided with cut hole type air lock valves and cut hole type air lock valve
US20080159659A1 (en) * 2006-12-29 2008-07-03 Chieh-Hua Liao Lock strengthening air enclosure and manufacture thereof
US20090050509A1 (en) * 2007-08-23 2009-02-26 Chieh Hua LIAO Multi-sectional clamping type air enclosure
US7568508B2 (en) * 2006-05-10 2009-08-04 Chian Hua Liao Inflatable pneumatic bag and the manufacture method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2934851B2 (ja) 1998-02-04 1999-08-16 ダイワ包材株式会社 逆止弁付き袋体
JP2000218718A (ja) * 1999-02-01 2000-08-08 Shinx Ltd 逆止弁付袋の連続製造装置
US7481252B2 (en) * 2006-02-10 2009-01-27 Air-Paq, Inc. Structure of check valve for air-packing device
TW200823116A (en) * 2006-11-17 2008-06-01 Yao-Sin Liao Air enclosure with independent double-layer air chambers

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060191816A1 (en) * 2003-05-19 2006-08-31 Canon Kabushiki Kaisha Packing method, packing member and manufacturing method therefor
US20070065047A1 (en) * 2005-09-19 2007-03-22 Akira Kojima Structure of air-packing device
US7568508B2 (en) * 2006-05-10 2009-08-04 Chian Hua Liao Inflatable pneumatic bag and the manufacture method thereof
US7854243B2 (en) * 2006-05-10 2010-12-21 Chian Hua Liao Inflatable pneumatic bag and the manufacture method thereof
US20080080792A1 (en) * 2006-09-29 2008-04-03 Yao Sin Liao Air-tightness strengthening air enclosure
US20080095474A1 (en) * 2006-10-20 2008-04-24 Yao Sin Liao Multi-sectional air enclosure and check valve apparatus
US20080121307A1 (en) * 2006-11-24 2008-05-29 Yao Sin Liao Air enclosure provided with cut hole type air lock valves and cut hole type air lock valve
US20080159659A1 (en) * 2006-12-29 2008-07-03 Chieh-Hua Liao Lock strengthening air enclosure and manufacture thereof
US20090050509A1 (en) * 2007-08-23 2009-02-26 Chieh Hua LIAO Multi-sectional clamping type air enclosure

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8201690B1 (en) * 2010-06-04 2012-06-19 Gess Larry C End user filled protective packaging with self-sealing air bubbles
US8215487B1 (en) * 2010-10-30 2012-07-10 Gess Larry C Inflatable packaging with self-sealing air bubbles
US8251216B1 (en) * 2011-03-16 2012-08-28 Yaw Shin Liao Gas column structure for shockproof sleeve
WO2013022398A1 (en) * 2011-06-22 2013-02-14 Pronova Aktiebolag Device for producing a shock-absorbing inflatable package and method for filling it
US8936156B1 (en) * 2012-04-05 2015-01-20 Inflatable Packaging, Inc. Inflatable packaging cushion with product suspension pocket
US8708145B2 (en) * 2012-09-14 2014-04-29 Shenzhen China Star Optoelectronics Technology Co., Ltd. Package cushioning structure for module
US11390447B2 (en) * 2014-01-19 2022-07-19 Shanghai Air-Paq Composite Material Co., Ltd. Packaging box with air buffering performance and application thereof
US10836553B2 (en) * 2014-04-14 2020-11-17 Pregis Innovative Packaging Llc Bi-directional flexible structure with angled perforations
US20150291335A1 (en) * 2014-04-14 2015-10-15 Pregis Innovative Packaging Llc Bi-Directional Flexible Structure with Angled Perforations
US10011411B2 (en) * 2015-01-16 2018-07-03 Papier-Mettler Kg Plastic pouch and plastic bag, in particular for online delivery trade
US20160207682A1 (en) * 2015-01-16 2016-07-21 Papier-Mettler Kg Plastic pouch and plastic bag, in particular for online delivery trade
US20180370709A1 (en) * 2015-03-31 2018-12-27 Reco Co., Ltd. Shock-absorbing packaging material having multi-layered air cells
US10640274B2 (en) * 2015-03-31 2020-05-05 Reco Co., Ltd. Shock-absorbing packaging material having multi-layered air cells
US11247829B2 (en) * 2016-10-24 2022-02-15 Sealed Air Corporation (Us) Inflatable pouches with reduced exterior distortions
US11325769B2 (en) * 2016-10-27 2022-05-10 Samsung Electronics Co., Ltd. Cushioning packaging material
EP3774578A1 (fr) * 2018-04-11 2021-02-17 Harry Plast Pochette souple d'expedition d'articles de type enveloppe avec dispositif de protection gonflable
US11124346B2 (en) * 2018-07-20 2021-09-21 The Procter & Gamble Company Flexible shipping package
WO2020018757A1 (en) * 2018-07-20 2020-01-23 The Procter & Gamble Company Flexible package and method of manufacture
US11072478B2 (en) 2018-07-20 2021-07-27 The Procter & Gamble Company Flexible package
US11325768B2 (en) 2018-07-20 2022-05-10 The Procter & Gamble Company Flexible package and method of manufacture
US11338980B2 (en) * 2018-07-20 2022-05-24 The Procter & Gamble Company Shaped flexible shipping package and method of making
US11345532B2 (en) 2018-07-20 2022-05-31 The Procter & Gamble Company Flexible package and method of manufacture
US11352186B2 (en) 2018-07-20 2022-06-07 The Procter & Gamble Company Company Flexible shipping package and method of making
US11352185B2 (en) 2018-07-20 2022-06-07 The Procter & Gamble Company Flexible shipping package
US20220185568A1 (en) * 2018-07-20 2022-06-16 The Procter & Gamble Company Shaped flexible shipping package and method of making
US11597574B2 (en) 2018-07-20 2023-03-07 The Procter & Gamble Company Flexible shipping package and method of making
US11542084B2 (en) 2018-07-20 2023-01-03 The Procter & Gamble Company Flexible package and method of manufacture
US11597575B2 (en) 2018-07-20 2023-03-07 The Procter & Gamble Company Flexible package and method of manufacture
US20210284420A1 (en) * 2020-03-13 2021-09-16 The Procter & Gamble Company Flexible Package
US11897682B2 (en) * 2020-03-13 2024-02-13 The Procter & Gamble Company Flexible package
US11858713B2 (en) 2020-10-30 2024-01-02 The Procter & Gamble Company Inflation feature for package, inflation rig assembly, and method of inflating
US20230114889A1 (en) * 2021-10-11 2023-04-13 The Procter & Gamble Company Shaped flexible shipping package and method of making
US12378056B2 (en) * 2021-10-11 2025-08-05 The Procter & Gamble Company Shaped flexible shipping package and method of making
USD986746S1 (en) * 2021-10-27 2023-05-23 Kunshan Airbag Packing Corp. Air column packing bag

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Publication number Publication date
EP2340218B1 (en) 2015-01-14
EP2340218A1 (en) 2011-07-06
JP2010070232A (ja) 2010-04-02
CN102159470B (zh) 2013-01-02
US20140326632A1 (en) 2014-11-06
CN102159470A (zh) 2011-08-17
WO2010032883A1 (en) 2010-03-25

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