Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
  • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
• • 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
  • B65D51/00—Closures not otherwise provided for
  • B65D51/16—Closures not otherwise provided for with means for venting air or gas
  • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
  • B65D51/1638—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of an element bursting upon a predetermined pressure in the container being exceeded
• • 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
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/38—Details of the container body
• • 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
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/70—Pressure relief devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C13/00—Details of vessels or of the filling or discharging of vessels
  • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
  • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
  • F17C2201/01—Shape
  • F17C2201/0104—Shape cylindrical
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
  • F17C2201/05—Size
  • F17C2201/058—Size portable (<30 l)
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2203/00—Vessel construction, in particular walls or details thereof
  • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
  • F17C2203/0602—Wall structures; Special features thereof
  • F17C2203/0612—Wall structures
  • F17C2203/0614—Single wall
  • F17C2203/0617—Single wall with one layer
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2203/00—Vessel construction, in particular walls or details thereof
  • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
  • F17C2203/0634—Materials for walls or layers thereof
  • F17C2203/0636—Metals
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2203/00—Vessel construction, in particular walls or details thereof
  • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
  • F17C2203/068—Special properties of materials for vessel walls
  • F17C2203/069—Break point in the wall
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2260/00—Purposes of gas storage and gas handling
  • F17C2260/02—Improving properties related to fluid or fluid transfer
  • F17C2260/021—Avoiding over pressurising
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2260/00—Purposes of gas storage and gas handling
  • F17C2260/04—Reducing risks and environmental impact
  • F17C2260/042—Reducing risk of explosion
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2270/00—Applications
  • F17C2270/07—Applications for household use
  • F17C2270/0718—Aerosols

Definitions

• the present invention relates to a can container such as an aerosol can filled with contents.
• an aerosol can filled with a propellant which is a high pressure gas
• a propellant which is a high pressure gas
• the pressure inside the can container abnormally increases with the thermal expansion of the propellant.
• the fastening portion between the can barrel and the bottom lid of the can container and the attachment portion between the can barrel and the mountain cap may be destroyed, and the bottom lid and the mountain cap of the can container may be blown away.
• the internal pressure of the can container exceeds a certain value, it is deformed to form a crack to form a weakened portion that releases the internal pressure.
• JP-A 4 7- 7 6 6 corresponding U.S. Pat. No. 3 7 8 6 9 6
• JP-A 4 8-4 5 5 9 1 U.S. Pat. No. 4,005,015) JP-A 4 7- 7 6 6 (corresponding U.S. Pat. No. 3 7 8 6 9 6 7)
• JP-A 4 8-4 5 5 9 1 U.S. Pat. No. 4,005,015) JP-A 4 7- 7 6 6
• JP-A-47006 there is a can provided with a large number of score lines in the diameter direction of the upper lid at the portion including the upper end of the metal upper lid (mountain cap) and the metal shell.
• the container is described.
• the bottom lid deforms so as to expand before the blowout, and as a result, the score line is broken, and the internal pressure is released.
• the periphery of the member constituting the bottom of the can container is divided, and the resistance which may be deformed and cracked when the internal pressure of the can container exceeds a certain value.
• Cans with weak areas are described.
• a portion to be cut which is cracked only when the bottom portion is inverted outward (the bottom portion protrudes outward of the can container) is provided on the bottom wall.
• the sealing performance is not stable. Therefore, although it is a can of normal internal pressure, it may cause leakage of contents or propellant from the constriction part, or it may cause vibration during distribution due to damage to the score when molding the convoluted part. The impact may cause risk fracture, and the contents or propellant may leak from the fractured point. Also, if the can container is accidentally dropped, the floor and the clamping portion may come into direct contact, in which case the score line formed in the winding portion is broken due to a drop impact. It will be easier. As a result, there is a possibility that the contents may be released other than at the time of high internal pressure which would cause breakage of the score line.
• the portion to be cut is formed in the peripheral portion of the curved area at the bottom of the can container. Therefore, when the bottom portion is deformed to reverse by the internal pressure of the can container exceeding a certain value, the vicinity of the center portion of the bottom portion is displaced outward in the axial direction of the can container. The wall surface of the dome does not deform much. Therefore, even if the portion to be cut is formed in the peripheral portion of the curved area at the bottom, if the position is relatively near the center, the portion to be cut may not be broken at the time of inversion of the bottom. Disclosure of the invention
• the present invention has been made on the background of the above-mentioned circumstances, and when the internal pressure of the can becomes abnormally high, it breaks reliably to release the internal gas, and in other cases, the easily breakable portion which does not break. It is an object of the present invention to provide a can container provided with In order to achieve the above object, according to the present invention, an annular ground portion formed at the lower end of the can container and a dome portion recessed inward of the can container from the inner peripheral surface of the annular ground portion are formed. In the can container being formed, a breakable portion which is broken when the internal pressure of the can container rises abnormally and the dome portion is deformed to project outward of the can container is connected to the annular ground contact portion.
• the can container is characterized in that it is formed on the outer surface side of the dome portion located in the immediate vicinity of the outer peripheral edge portion of the dome portion.
• the easily breakable portion may be formed inward in a radial direction from the outer peripheral edge portion of the dome portion and in a predetermined range.
• the easily breakable portion provided on the outer surface of the dome portion may be formed in a reverse trapezoidal shape having a vertical cross-sectional shape, an inclined side surface that tapers toward the inner surface side from the outer surface side of the dome portion, and a bottom surface connecting the inclined side surfaces.
• the easy-to-break portion may have a planar shape and a substantially semicircular arc shape, and an end of the easy-to-break portion may extend in a substantially radial direction of the can container.
• the internal pressure of the can container abnormally rises due to heating or the like, and the outer peripheral edge portion of the dome portion formed on the bottom side of the can container (when the can container is placed on the floor, Starting from the lower end edge of the dome portion connected to the ring-shaped ground portion in direct contact, when the dome portion is inverted and deformed so as to project outward of the can container, the easy breaking portion is broken, In order to discharge the contents inside the container, when the internal pressure rises abnormally, it is possible to degas without partially blowing off the container.
• the easily breakable portion is formed immediately near the outer peripheral edge of the dome portion having a large degree of deformation when the dome portion is inverted, it is possible to reliably break the easily breakable portion when the dome portion is inverted. it can.
• This easy-to-break portion is formed on the outer surface side of the dome portion located in the immediate vicinity of the outer peripheral edge portion of the dome portion, so that it breaks into an annular grounding portion that easily contacts the ground directly when the can is accidentally dropped. Compared with the case where the easy part is formed, it is possible to prevent the occurrence of an unexpected break due to a drop impact.
• the easily breakable portion is positioned radially inward from the outer peripheral edge portion of the dome portion and within a predetermined range, the easily breakable portion can be broken more reliably. it can.
• the vertical cross-sectional shape of the easy-to-break portion has an inverted trapezoidal shape, and a pair of inclined side surfaces of the easy-to-break portion and a bottom surface connecting the inclined side surfaces are formed. Even if the internal pressure rises to a certain extent due to an impact etc. and the dome part bulges a little, a gap is generated between the inclined side surfaces by the amount of the bottom surface. Therefore, there is no chance that the easy-to-break part will break inadvertently.
• the plane shape of the easy-to-break portion is substantially semi-circular and the end portion extends in the substantially radial direction of the can container, the break occurs when the dome portion is reversed.
• the easy part is broken, the semi-disc-like part surrounded by the broken easy part is more likely to rise outward than in the case where the easy broken part is formed in a straight line.
• the pressure inside the can container can be released quickly.
• the end of the easily breakable part is positioned next to the circumferential direction. Since the crack in the dome portion does not reach the other easy-to-break portion located next to the circumferential direction because the direction of the easy-to-break portion is not directed, the-portion of the dome portion is not broken and separated.
• At least a part of the easily breakable part be located within a range of 3 mm or less from the outer peripheral edge of the dome part. Moreover, it is preferable to set the width
• FIG. 1 is a bottom view showing the can container of the present invention.
• FIG. 2 is a view showing the position of the breakable portion in the can container of FIG.
• FIG. 3 is a longitudinal sectional view showing a dome portion in the can container of the present invention.
• FIG. 4 is an enlarged view of the dome portion of FIG. 3;
• FIG. 5 is an enlarged view showing a portion V of FIG.
• FIG. 6 is a longitudinal sectional view showing the can container of the present invention.
• FIG. 7 is a front view showing the can container of the present invention.
• FIG. 8 is a bottom view showing another embodiment of the can container of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
• FIGS. 6 and 7 show cans such as aerosol cans, etc., in which propellants etc., which are high pressure gas, are filled inside metal containers.
• This can container (main body) 1 is provided with a cylindrical metal can body (body) 2.
• An aerosol valve member (not shown) for injecting the contents is attached to one end of the can body 2 and a disc-shaped bottom lid (can lid) 3 made of metal is fixedly wound and fixed to the other end. It is done.
• the contents to be filled are both cosmetics, insecticides, drugs, detergents, paints, lubricants, foods, etc. and high-pressure gas as a propellant.
• the metal material for the can body and can lid in the can container of the present invention is mainly made of a metal material that has been rolled and then subjected to an appropriate surface treatment and / or plating if necessary. In any case, one having a resin film formed on the surface in contact with the contents can be used.
• a steel plate material such as an aluminum plate material made of pure aluminum or aluminum alloy, a steel plate treated with electrolytic chromic acid, a nickel plated steel plate, a tin plated steel plate or the like can be used.
• paints such as epoxy phenol resin, epoxy resin, vinyl chloride resin, etc., thermoplastic resin such as polyethylene, polypropylene, polyester, polyamide, ionomer, etc.
• the resin film etc. which are comprised from 1 type, or 2 or more types of can be used.
• the can body 2 is formed by drawing and ironing a thin metal sheet into a seamless can, and applying a drawing process to the bottom side of the seamless can to form a bottomed cylindrical part 2 A having a diameter smaller than that of the can body 2 A And trim the open end side of the can body 2 and the tip end side of the small-diameter bottomed cylindrical portion 2A, and further attach the air release / rev member to the bottomed cylindrical portion 2A side.
• An opening curl portion 2B is formed, and a flange portion 2C for winding and closing the bottom lid 3 is formed on the open end side of the can body 2.
• the bottom cover 3 is a metal plate material on which a score line L to be the easily breakable portion 5 is formed, and then the metal plate material is punched into a disk shape and subjected to press forming.
• the bottom cover 3 has a dome portion 3A having an arc-like longitudinal cross section which is recessed inward of the can container 1 when winding and tightening the can body 2 and a flange portion 3 for winding and fixing to the can body 2.
• the can container 1 is located at the outermost end of the dome portion 3A in the radial direction and on the outer surface side of the can container 1 near the outer peripheral portion 3C connected to the flange portion 3B.
• an easy-to-break part 5 which is broken when is deformed, four semicircular arc-shaped score lines L having a planar shape are formed at equal intervals in the circumferential direction.
• both ends of the score line L are directed radially inward of the bottom lid 3, and a portion of the score line located at the outermost end in the radial direction of the bottom lid 3 is a dome portion It is located immediately near the outer peripheral edge 3C of 3A, and is located within about 3 mm radially inward from the outer peripheral edge 3C of the dome 3A.
• the two-dot chain line M shown in FIG. 2 is a view showing a state in which the score line L is in contact with the outer peripheral edge 3 C of the dome portion 3 A.
• the longitudinal cross-sectional shape of the score line L shown in FIGS. 3 to 5 has a pair of inclined side surfaces 5 A that become tapered from the outer surface side to the inner surface side of the bottom lid 3 (can vessel 1).
• a bottom 5 B substantially parallel to the bottom cover 3 connecting the two inclined side surfaces 5 A is formed at the lower end of the It has an inverted trapezoidal shape (see section V).
• the thickness of the dome portion 3A of the bottom lid 3 is 0.3 mm
• the remaining thickness of the score line L portion is 0.15 mm
• the longitudinal cross-sectional shape of the bottom surface 5B The width of is 0.60 mm
• the opening angle of the pair of inclined side surfaces 5A is 50 °.
• the number of the score lines L is about 2 to 10 at approximately equal intervals in the circumferential direction of the bottom lid 3 within the above range, because the pressure resistance of the bottom lid 3 is reduced if the number is too large. .
• a tightening portion 3D obtained by winding and tightening corresponds to the annular grounding portion of the present invention.
• the tightening portion 3D includes an annular ground surface directly contacting the floor, a table or the like, and an annular inner peripheral surface 3E and an outer peripheral surface 3F extending substantially perpendicularly from the peripheral edge of the ground surface.
• the upper end of the inner peripheral wall of the wound portion 3D and the outer peripheral edge 3C of the dome portion 3A (the lower end of the dome portion 3A) are connected.
• each score line L inward in the radial direction of each score line L formed in the immediate vicinity of the outer peripheral edge 3 C of the dome 3 A You may form the subscore line 6 whose residual thickness is thicker than the line L.
• stress concentration on the score line L at the time of molding the score line can be alleviated, and partial thinning of the score line L or It can prevent damage such as cracking.
• the damage of the score line is increased due to the forming of the dome portion 3A.
• the resin coating covering the inner surface may be broken or a crack may occur in the score line, but such a situation can be prevented by forming the sub-score line 6.
• the dome portion 3A when the internal pressure of the can container 1 abnormally rises due to heating or the like, the dome portion 3A is inverted with the outer peripheral portion 3C of the dome portion 3A of the bottom lid 3 as a base point. , Transforms so as to project outward of can 1. At this time, any score line L formed in the immediate vicinity of the outer peripheral edge portion 3 C of the dome portion 3 A is broken, and the contents (not shown) inside the can container 1 are released. There is no possibility that the bottom cover 3 will be blown off due to destruction of the clamping part 3D between the part 2 and the bottom cover 3.
• the central portion of the dome portion 3A is displaced outward (downward) only in the axial direction of the can container 1, and the wall surface of the dome portion 3A is not deformed too much.
• the wall surface immediately adjacent to the outer peripheral edge portion 3 C of the dome portion 3 A is largely deformed so as to be pulled radially inward of the first rib portion 3 A and axially outward of the can container 1.
• each score is not Since the line L is formed in the immediate vicinity of the outer peripheral edge 3 C of the dome portion 3 A, it is possible to reliably break either score line L when the dome portion 3 A is inverted.
• each score line L is formed in the immediate vicinity of the outer peripheral edge portion 3 C of the dome portion 3 A, it is an annular grounding portion that easily contacts the ground directly when the can is dropped accidentally. Compared with the case where a score line is formed on the part 3D, it is possible to prevent an unexpected breakage due to a drop impact. Furthermore, if the vertical cross-sectional shape of the score line L is an inverted trapezoidal shape and the bottom surface 5 B connecting the inclined side surfaces 5 A is formed as in the present embodiment, the can container 1 can be heated or shocked. Even if the internal pressure rises to some extent and the dome 3A bulges outward somewhat, the score line L does not break unexpectedly.
• the bottom lid 3 is deformed due to the increase of the internal pressure of the can container 1, and when inverted, the inclined side surfaces 5A and 5A of the score line L abut each other, causing a crack on the bottom surface 5B.
• the inclined side surfaces 5A and 5A of the score line L abut each other, causing a crack on the bottom surface 5B.
• the score line L has an inverted trapezoidal cross-section and the bottom surface 5 B
• the internal pressure of the can container 1 rises to some extent and the dome portion 3 A bulges outward.
• a gap can be formed between the two inclined side surfaces 5A and 5A by the bottom surface 5B. Therefore, both inclined side surfaces 5 A and 5 A do not immediately come into contact with each other. Even a small pressure rise will not cause the score line L to break unexpectedly. If the width of the vertical cross-sectional shape of the bottom surface 5 B is too narrow, the score line L is broken due to some deformation of the bottom lid 3 as described above, but if the width is too wide, the bottom lid 3 is inverted.
• each score line L becomes difficult to break.
• the planar shape of each score line L is a semicircular arc, and the end of each score line extends in the substantially radial direction of the can container 1, for example, When the score line L is broken at the time of inversion of the dome portion 3 A compared to when the score line is formed in a straight line, the semi-disk-like portion surrounded by the broken score line L goes outward. It is easy to rise up. Therefore, the pressure inside the can container 1 can be released quickly.
• each score line L extends substantially in the radial direction of the can container 1
• the fracture of the score line L in which the fracture has occurred due to the internal pressure of the can container 1 is the score line L
• the score line L Even if the bottom lid 3 is cracked, it does not break apart or separate a part of the bottom lid 3 even if it extends up to the extension of the end of the bottom portion 3.
• the score line L when the end of the score line L extends in the circumferential direction, the score line L is broken, the break occurs on the extension line of the end group of the score line L, and the bottom lid 3 has a crack. If it occurs, the crack may be connected to another score line L located next to the circumferential direction, and part of the bottom cover 3 may break apart in a disc shape.
• the can container of the present invention since the end of the score line L extends substantially in the radial direction of the can container 1, the circumferential direction on the extension of the end of the score line L There is no score line located next to. Therefore, breakage of the score line L occurs up to the extension of the end, and even when the bottom lid is cracked, a part of the bottom lid is not broken apart.
• the can container of the present invention is not limited to the one in which the bottom lid 3 is wound and tightened on the can barrel 2 but may be one in which the can barrel and the bottom lid are integrally formed from one member.
• the container itself may be not only an aerosol can but also a potl type can having a screw formed at one end of the can body 2.
• the present invention can be used in the industrial field of manufacturing aerosol cans and cans therefor.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Rigid Containers With Two Or More Constituent Elements (AREA)
• Table Devices Or Equipment (AREA)
• Filling Or Discharging Of Gas Storage Vessels (AREA)
• Closures For Containers (AREA)
• Containers Having Bodies Formed In One Piece (AREA)
• Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35839436

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (22)

Citations (6)

Family Cites Families (6)

• 2004
  • 2004-08-10 JP JP2004233458A patent/JP4781646B2/ja active Active
• 2005
  • 2005-08-08 EP EP05770323A patent/EP1785371B1/de not_active Not-in-force
  • 2005-08-08 US US11/573,489 patent/US20090223956A1/en not_active Abandoned
  • 2005-08-08 DE DE602005025651T patent/DE602005025651D1/de active Active
  • 2005-08-08 AT AT05770323T patent/ATE493349T1/de not_active IP Right Cessation
  • 2005-08-08 CN CNA2005800274049A patent/CN101014515A/zh active Pending
  • 2005-08-08 WO PCT/JP2005/014860 patent/WO2006016679A1/ja active Application Filing
• 2007
  • 2007-11-13 HK HK07112395.9A patent/HK1103702A1/xx not_active IP Right Cessation

Patent Citations (7)

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