US3850338A - Can capable of being folded into a definite form by hand - Google Patents

Can capable of being folded into a definite form by hand Download PDF

Info

Publication number
US3850338A
US3850338A US00402740A US40274073A US3850338A US 3850338 A US3850338 A US 3850338A US 00402740 A US00402740 A US 00402740A US 40274073 A US40274073 A US 40274073A US 3850338 A US3850338 A US 3850338A
Authority
US
United States
Prior art keywords
grooves
groove
cylinder
folded
stripping
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.)
Expired - Lifetime
Application number
US00402740A
Other languages
English (en)
Inventor
M Hatada
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3850338A publication Critical patent/US3850338A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/42—Details of metal walls
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/404—Details of the lines of weakness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/906—Beverage can, i.e. beer, soda
    • Y10S220/907—Collapsible

Definitions

  • ABSTRACT A can capable of being folded into a definite form by hand, in which the outer or inner surface of a cylindrical can is provided, with a first groove, in the axial direction thereof, second and third grooves respectively positioned to be right and left of said first groove at a distance approximately equal to the diameter of said can, and a fourth groove between said second and third groove.
  • the outer and inner surface of the top and bottom are provided with parallel stripping grooves, connected to a small pull ring.
  • the stripping grooves form a plum blossom, and the periphery of the inner surface of said top and bottom is provided with radial grooves. If neces s a ry, the joint portions at the end s ofeach grooveforrned on the outer or inner surface of said can are provided with notches.
  • the present invention relates to an empty can capable of being folded by hand and more particularly, a can in which the outer or inner surface as well as the surface of the top and bottom of the cylindrical can are provided with grooves which enable the can to be folded by hand when it is empty.
  • empty cans cause a bottleneck in transportation because of their very bulky volumes. A large number of these empty cans are deformed by force thus illustrating the users desire for disposing of them.
  • cans are manufactured so strongly that they may be not bent without using special tools, resulting in the leaving of them as empty cans. If empty cans are folded by hand without using a special tool, not only will users voluntarily dispose of the cans but social pressure will force them to fold the cans prior to disposing of them.
  • the object of the present invention to provide a can which can easily be treated after use.
  • Another object of the present invention is to provide a can which can be folded easily into a definite form by hand when it is empty.
  • a still further object of the present invention is to provide a can, the volume of which can be minimized greatly when it is empty.
  • Another object of the present invention is to provide a can, whereby the cleaning of the surroundings and the improved recovery of material are attained with a reduced cost for transporting waste materials.
  • the outer or inner surface of the cylindrical can is provided, in the axial direction thereof, with a first groove, second and third groove, one to the left and one to the right of the first groove a distance approximately equal to the diameter of said can, and a fourth groove in the middle of the second and third grooves.
  • the outer and inner surface of the top and bottom are provided with parallel stripping beads, in the form of plum blossom which is connected to a pull ring and the periphery of the inner surface of the top and bottom is provided with radial grooves. Further, if notches are provided at the joint portions at both ends of each groove formed on the outer or inner surface of cylindrical can, the folding of the can is made even easier.
  • the can according to the present invention when it is empty after use, can be folded advantageously into a definite predetermined form by hand by providing grooves which are narrow, shallow and concave on the outer or inner surface of cylindrical can and providing a stripping zone through grooves on the top and bottom of the can. Therefore, the can according to the present invention, which is used for canned beer, soft drinks and foods, can be folded easily into a definite form when empty without using any special tool, so that persons can carry it back easily from mountains, beaches or streets. Further, in the recovery of used cans for recycling, the present invention provides a great advantage in transporting them because the transporting volume of folded cans is less than one tenth that of bulky unfolded cans.
  • FIG. 5 is a back view of said bottom before joining
  • FIG. 6 is a section view which shows the relationship between the side wall and the bottom of said can at the joint portion
  • FIG. 7 is a perspective view of a folded can.
  • the diameter D is 65 mm and the length L mm.
  • grooves b and c are provided along the cylindrical surface of can 1 parallel to a groove a at a distance of diameter D to the right and left of groove a, and a groove d is provided parallel to'said groove a in the middle of said grooves b and 0.
  • FIG. 2 is a developed view of cylindrical can 1 as shown in FIG. 1 and shows the relationship between said grooves a, b, c and d.
  • the line e is a welding line, along which the can is welded in the form of the cylindrical surface of the can.
  • the grooves b and c are located at a distance of about D (65 mm) right and left from a groove a, and the distance between the groove b and c 2X is as follows:
  • the grooves a, b, c and d which are provided on can 1 are in the relationship as mentioned above.
  • the relationship between groove distances is not necessarily restricted to the above one and the distance between the groove a and b as well as the groove a and 0 may be larger or smaller than D. If the distance is less than one fourth of circumference, it is impossible to fold the can. On the other hand, if the distance is much larger than the diameter D of can, not only is the can difficult to fold but the folded can is bulky.
  • the portion between the groove b and c in FIG. 2 corresponds to the folded-in-portion and the center line d is pressed by fingers.
  • the strength of the can is given by the tensile strength resulting from the pressure welding of the top and bottom 2 and 3 to the cylinder portion 1.
  • the one consists of grooves a, b, c and d, which areprovided on the outer or inner surface of can 1, and notches 4, 5, 6, 7 and 8, 9, 10, 11 formed at the end joint portions of each groove. While these notches are not necessary for the present invention depending on thestrength of the can, the provision of notches however assists in the bending of the can. Without notches, grooves a, b, c and d should be provided between the top and bottom of cylinder l.
  • the width of the notch is in general about 0.5-2 mm, preferably about 1 mm and the height thereof is necessarily of such value that the base of the notch is within the curved joined portion of cylinder 1.
  • the other consists of grooves formed on the top and bottom 2 and 3. As shown in FIG. 3, parallel curves 12 and 13 in the form of a plum blossom for stripping are cut, the distance between said two curves being 1.5-3 mm.
  • a small pull ring 14 is pulled for removing the top or bottom 2 or 3 of the can by stripping said grooves 12 and 13 provided on the inner and outer surface of the top and bottom. Nails 16 provided on large pullring are utilized for pulling the small pull-ring.
  • the portion of grooves for stripping should avoid the one half of the extension of press pressure line applied in the sealing of the can. Therefore, the provision of said stripping grooves does not disturb the press procedure in the manufacture and sealing of the can and does not cause a break in the metal plate.
  • Half of stripping strip is provided on the raised joined portion of the top and bottom without hindering the pulling of the strip.
  • the groove 12 or 13 is provided on the inner and outer surface of the top and bottom 2 and 3 of the can in a known method used in the formation of the large pullring.
  • the top and bottom 2 and 3 may be joined to the cylinder 1 at random. While the joining of top and bottom cylinder in a certain arrangement may provide convenience (e.g., the top having the stripping strip in the form of plum blossom can be so arranged that the top may be folded into the cylinder portion of the can by hand without any trouble), this is not advantageous from the view-point of manufacturing cost. To avoid such disadvantage, some grooves may be provided to the top or bottom for the convenience of folding (not shown) in order to bend the top or bottom before it is folded into the cylinder 1.
  • the strength of the can is provided by the formation of upper and lower ring portions, which are formed by joining the top and bottom 2 and 3 and cylinder 1,
  • Both ring portions have a four-ply structure, which resulted from combining the top or bottom 2 or 3 and the doubly folded metal plate of can 1.
  • the strength of the can is principally based on this structure. Therefore, in folding the can by finger pressure, the provision of grooves and notches to said ring portion provides a better result.
  • FIG. 4 is a section view of top or bottom 2 or 3 before combining with the cylinder portion I and FIG. 5 is the rear view thereof.
  • grooves are provided radially at intervals of about l2 mm along the back periphery of flange 17 of the top or bottom 2 or 3.
  • the strength of the ring portion is reduced by half through notches or grooves on the cylinder 1 and grooves on the top and bottom resulting in the removal of resistance to finger pressure. Though it might appear that such reduction of strength is apparently dangerous when the can is filled, there is no danger in practice due to the presence of tensile strength of the top and bottom.
  • the can according to the present invention is provided with various kinds of grooves and two small pull-rings on the top and bottom.
  • both top and bottom are made of aluminum plate.
  • An empty can is folded by hand as follows: The small pull-ring 14 is pulled by means of the nail 16 on large pull-ring 15, which is connected to the groove 18.
  • the stripping strip is not separated at the end from the top and is folded in the inside of the can using as lock metal the remaining nail-like portions around the ring portion.
  • the stripping strip on the bottom 3 is then treated in the same manner.
  • the large pull-ring strip is hung at the end of the stripping strip and inserted in the interior of cylinder 1.
  • the remaining top and bottom portion in the form of a plum blossom are connected to the can and folded into the inside of the can.
  • the groove a on the can 1 is pushed to fold the can.
  • the can is placed on the ground and pressed by the body weight to complete the folding of the can into a definite form as shown in FIG. 7.
  • the form of the cylindrical portion may be elliptical or another shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
US00402740A 1972-10-05 1973-10-02 Can capable of being folded into a definite form by hand Expired - Lifetime US3850338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9941072A JPS54709B2 (enrdf_load_stackoverflow) 1972-10-05 1972-10-05

Publications (1)

Publication Number Publication Date
US3850338A true US3850338A (en) 1974-11-26

Family

ID=14246698

Family Applications (1)

Application Number Title Priority Date Filing Date
US00402740A Expired - Lifetime US3850338A (en) 1972-10-05 1973-10-02 Can capable of being folded into a definite form by hand

Country Status (2)

Country Link
US (1) US3850338A (enrdf_load_stackoverflow)
JP (1) JPS54709B2 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322013A (en) * 1980-04-18 1982-03-30 Kenjiro Tanaka Breakdown container
US4860908A (en) * 1985-06-06 1989-08-29 Rumble Richard R Crushable container and method for weakening the container

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536754U (enrdf_load_stackoverflow) * 1976-07-03 1978-01-20
JPS54134167U (enrdf_load_stackoverflow) * 1978-03-09 1979-09-18
JPS58150095A (ja) * 1982-03-02 1983-09-06 Shibaura Eng Works Co Ltd ポンプ

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291755A (en) * 1938-03-21 1942-08-04 Lee D Pierce Container and the production and nesting thereof
US2654473A (en) * 1950-01-10 1953-10-06 Lee D Pierce Nesting container shells
US3317110A (en) * 1965-05-10 1967-05-02 Monsanto Co Container with folded body of curvilinear cross section
US3353700A (en) * 1965-05-06 1967-11-21 Ben F Kalina Can device
US3420367A (en) * 1967-05-25 1969-01-07 Du Pont Multiple container package
US3773209A (en) * 1971-12-30 1973-11-20 American Can Co Full or partial opening easy-open container end closure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291755A (en) * 1938-03-21 1942-08-04 Lee D Pierce Container and the production and nesting thereof
US2654473A (en) * 1950-01-10 1953-10-06 Lee D Pierce Nesting container shells
US3353700A (en) * 1965-05-06 1967-11-21 Ben F Kalina Can device
US3317110A (en) * 1965-05-10 1967-05-02 Monsanto Co Container with folded body of curvilinear cross section
US3420367A (en) * 1967-05-25 1969-01-07 Du Pont Multiple container package
US3773209A (en) * 1971-12-30 1973-11-20 American Can Co Full or partial opening easy-open container end closure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322013A (en) * 1980-04-18 1982-03-30 Kenjiro Tanaka Breakdown container
US4860908A (en) * 1985-06-06 1989-08-29 Rumble Richard R Crushable container and method for weakening the container

Also Published As

Publication number Publication date
JPS4957992A (enrdf_load_stackoverflow) 1974-06-05
JPS54709B2 (enrdf_load_stackoverflow) 1979-01-13

Similar Documents

Publication Publication Date Title
US3353700A (en) Can device
US3918603A (en) Can capable of being folded into a definite form by hand
US4377191A (en) Collapsible container
US3272383A (en) One-piece extruded container for canning
US5201438A (en) Collapsible faceted container
US6588654B2 (en) Cup having safety structure
CA1151086A (en) Aluminum container
US3794206A (en) Frangible opening means for a container lid
US6832852B2 (en) Gusseted flexible bottle with fitment and method of fabrication
US3850338A (en) Can capable of being folded into a definite form by hand
PL190341B1 (pl) Puszka, sposób i uchwyt zamykający do łączenia denka puszki z korpusem puszki
US4428741A (en) Method for forming a seam release strip composite container
US2110612A (en) Container top closure
EP1501736A1 (en) Gusseted flexible bottle with fitment and method of fabrication
US4052949A (en) Method for making easy open container end with protective edges for its severed score
US3853080A (en) Container end and forming method
US7644833B2 (en) Can end
US3381594A (en) Liquid package and process for producing the same
US3698596A (en) Necked-in container
US3921848A (en) Aerosol dispensing and similar metal cans adapted to contain a pressurized fluid
CN101098817A (zh) 椭圆横截面管、用于制造该产品的方法和设备
US6070750A (en) Reinforced container and method for producing same
BG107409A (bg) Капсули за затваряне с листова пола
US4376506A (en) Seam release strip composite container
US2269593A (en) Process of making telescoping drinking tubes