US2362821A - Key opening sheet metal container - Google Patents

Description

NO 19% w. w. HonesoN 2 2,362,821

KEY OPEN ING SHEET METAL CONTAINER Filed June 11, 1942 Patented Nov, 14, 1944 e I 2,362,821 KEY OPENING SHEET METAL CONTAINER "William ;Hodgson, Chicago; 11L, assig'nor to Continental, Can Company, "Inc., New .York, N. Y., acor porat ion of New York J Application June 11, 1942;881121 N0. 446,650. lClaim. L'2'2o- -52 The invention relates to new and useful improvements in a sheetmetal container andmore particularly to a sheet metal container of the ripstriptype. 7

The invention has particularly to do with-the I means'for attaching a key tothe wall of a"-container so that the'key will be firmly held'inplace on the container-and may be easily detached therefrom for use in opening the container.

n object of the'invention'is to provide a means whereby a key maybe attached to and detached from the wall of a container by bending metal parts without disturbing the wall of the container;

A further object of the inventionisto provide a key-attaching means of the above type whereby the metal part which is to be bent for attaching the key and for the removal of the key is separate from the body wall of the container, but firmly'secured thereto prior to the attachment of the key to the metal part. I

In the drawing: Figure 1 is a vertical sectional View through the vided with a projectingitong'ue adapted to. be .inserted in a slotin a keyso that the tongue may be wound onto the key and the key turned for severing the metal and. thus. disconnecting the end from the container. 1 The containe body as shown in Figure 1 is indicatedat l. The closure end which is. also of sheet'metalis indicated at 2 and issecured to-the' body bythe usual double seam,-indicated at 3. .This container end is made from a blank which is indicated. atd .in Figure3 of the'drawing. The 'blankis cut to propershape for die-shaping the end and during thiscutting operation is provideo'l with a raised. central portion 5. The raised central portion? 5 isv thensubje'cted to 1a die-shaping ope'ration so as to provide a depression 6' surrounded by a substantially. verupper portion of a rip strip container having my improved key-attaching means applied thereto,

Figure 2 is a plan view of the same, Figure '3 is a plan View of a blank which has been cut to proper shape for making the container endand which is die-shaped soas to provide a raised central portion, 1

Figure 4 is a sectional'view through the blank which is to form the end after said blank has been die -shapedto provide a centraldepression in the raised portion,

Figure 51s a vertical sectional view through a I sheet metal disk to which the key is to be attached, I

Figure 6 is a sectional view through the container end showing the disk placed in the=depression in the end and the vertical wall surround ing the depression folded inwardly and down-' wardly so as to clamp the disk as a unit to the I closure end,

Figure 7 is a plan view showinga modified arrangement ofholding means for securing the key to the retaining disk therefor,

Figure 8 is a sectional view on the line 88, and

Figure 9 is a plan view of a portion of a container end showing a modified construction of key and arrangement of attaching means therefor.

The container body is madeof sheet metal and is of the usual rip strip type, that is,said body has score lines extending around thesame, setting off a tearing strip, which tearing strip is protical wall I.

A sheet metal disk 8' (seeFigure 5) is cut so thata holding tongue 9 is formed as an .integral part thereof. Said holding tongue is bent upwardly and thence laterally as indicated in said figure- This formed sheet metal disk 8 is placed in a central depression 6 after which the'raised rib portion of the closure end is; die-shaped so as to fold down the vertical wall and cause the'same to overlie the disk. This provides a folded lip H! which is brought into firm contact with the disk 8 and permanently secures the same to the closure end as a unit. The key for opening the container is indicated at l I. Said key has the usual loop-shaped handle and a shank t2 provided'with firmly securing the key to the container so that it becomes a removable unit with the container.

' The key can only be, detached by the bending of the tongue and, inasmuch as thekey is housed within the recess of the closure end, it is not liable'to become detached from the closure during the handling thereof. In other words, in order to remove the key'a sufficient force must be applied tostraighten out the tongue and allow it to be drawn from the slot in the key. J

In the modification shown in Figure 7 the key -shank I6 has an extension I! and a fiat section I8 therebetween. This flat section has a slot l3 therethrough. for attachment to the rip strip. The metal disk 8 is provided with two tongues I9 and 20 which are struck up therefrom and are integral parts'of the retaining disk 8.' The disk 8 is secured to the closure end in exactly the same manner as described in connection With Figures 1 to 6. These tongues I9 and 20, after the key has been placed between the same, are folded down onto the outer face of the shank and serve as a means for housing this portion of the shank and thus securing the key to the closure end. When it is desired to remove the key the operator, grasping the handle, raises the key and forcibly bends the metal forming the. holding tongues so that they are separated and the key released.

In Figure 9 of the drawing the key shank 16 has the usual flat portion with a slot I3 therethrough which may be applied to the tongue of the rip strip. The key is extended and provided with a second flat portion 2! which has a slot 22 therethrough. The tongue 23 which is struck up from the disk 8 is formed at one side of the disk and is of such length and shape that it can be inserted through the slot 2| and then pressed against the key for holding the key to the disk.

My improved key-attaching means may be applied to a sheet metal container of the rip strip type after the closure end has been shaped and is ready for attachment to the container body. It is usual to decorate the containers and often the closure end is enameled both inside and outside. This enamel is applied to the sheet from which the blanks are cut for forming the closing ends. The die-shaping of the end to form the recess and secure the key-retaining disk 7 thereto does not in any way disturb the enamel. When the key is attached it is accomplished without the application of heat in any way, merely by bending of the holding tongue carried by the retaining disk. This disk is separate from the closure end although it is permanently secured thereto and therefore the bending of the metal in the attaching of the key and in the removing of the key all takes place in the tongue and the container walls are not in any way disturbed during this attaching or detaching of the key. Furthermore, the tongue is light Weight metal and can be readily deformed for the attachment of the key and the removal of the key without in any way disturbing the shape of the key. While my key-attaching means may be used in connection with sheet metal containers made from tin plate, it is particularly adapted for use in connection with sheet metal containers made from black plate. It is obvious that the minor changes in the details of construction and the shapin of the parts maybe made without departing from the spirit of the invention as set forth in the appended claim.

What I claim is:

A sheet metal key opening container including a closure end having a depression formed therein, a metal key attaching disk located in said depression, the wall surrounding the depression being bent inwardly so as to overlie and secure the disk permanently to the closure end, a key having a slot therethrough for opening the container placed so that the slot in the key overlies said disk, said disk having a member struck up therefrom extending through the slot in the key and bent upon itself so as to overlie a portion of the key for securing the key to. the sheet metal disk. v

WILLIAM W. HODGSON.

Images