[0001] This invention relates to a metal container with a tear-off lid.
[0002] Substantially cylindrical metal containers are known in which their lid and base
are secured to the ends of their lateral surface by seaming.
[0003] The lid generally comprises an endless incision line defining an internal tear-off
portion which is provided with a pulling ring.
[0004] To open the container the user firstly raises the pulling ring to induce an initial
tear in the portion, after which he pulls it to completely remove this portion from
the container.
[0005] Such containers are currently used for packaging foods such as peeled tomatoes, tuna,
meat in gelatine, coffee powder etc.. Recently they have also been used as aroma-protection
containers for chocolates, tea bags and prepackaged coffee capsules, ie products which
are removed by inserting the hands into the container.
[0006] However such containers have the drawback to cause the grazing of the user's hand
and wrist on contact with the annular torn-off edge of the lid left after the removal
of the internal tear-off portion.
[0007] This drawback is obviated according to the invention by a metal container with a
lid comprising an endless tear-off line, characterised in that the lateral surface
of the container comprises, in a position underlying the zone in which the lid is
secured thereto, an annular appendix directed towards the inside of the container
and having width not less than the width of the horizontal annular lid edge defined
by the endless tear-off line.
[0008] The present invention is further clarified hereinafter with reference to the accompanying
drawing showing a partial longitudinal section through a container according to the
invention.
[0009] As can be seen from the drawing, the metal container 1 according to the invention
has the shape of a cylindrical body, the lateral wall 2 of which has the ends secured
to a base 3 and a lid 4 by seaming.
[0010] The lid 4 comprises an endless circular incision line 5 defining an inner tear-off
portion 6, which is provided with a ring-shaped tear-off tab 7.
[0011] The upper part 8 of the container lateral surface is inclined inwards in an upward
direction after which it passes through a loop 9 which extends as a horizontal portion
10 which is substantially into touch with the standing above horizontal annular portion
11 of the lid 4 defined by the incision line 5.
[0012] The width of the annular portion 10 is greater than the width of the annular portion
11, so that the loop 9 forms an "edge protector" preventing the hands and wrists inserted
by the user into the container from coming into contact with the cutting edge of the
annular portion 11 once the portion 6 has been removed.
[0013] Furthermore the presence of the annular portion 10 forms a support surface for the
annular portion 11 when the portion 6 has to be pulled in correspondence of the tab
7, thus making easier the tearing off of the lid.
[0014] Finally the inclined shape of the upper part 8 enables to take away in an easy and
simple way possible materials which have been left underweath it, thus ensuring the
complete emptying of the container and this is particular advantageous in the use
as container for semifluid substances like plaster, honey.
1. A metal container (1) with a lid (4) comprising an endless tear-off line (5), characterised
in that the lateral surface (2) of the container comprises, in a position underlying
the zone in which the lid is secured threreto, an annular appendix (10) directed towards
the inside of the container and having width not less than the width of the horizontal
annular lid edge (11) defined by the endless tear-off line (5).
2. A container as claimed in claim 1, characterised in that the upper part (8) of the
container lateral surface (2) is inclined inwards in an upward direction and forms
a loop (9) having a horizontal portion (10) which is substantially into touch with
into the annular edge (11) defined by the endless tear-off line (5).
3. A container as claimed in claim 2 characterised in that the midth of the horizontal
annular portion (10) is greater than the width of the annular portion (11).
4. A container as claimed in one or more of the previous claims characterised in that
it has a cylindrical shape.