[0001] The present invention relates to a letter box provided with devices intended to prevent
foreign bodies accidentally inserted in the box itself from getting mixed with the
correspondence.
[0002] More specifically, the box according to the invention is provided, in the proximity
to the mouth, with means suitable to direct any foreign body (differing from the mail
either in size or weight) towards a zone kept separate from that where the introduced
correspondence is deposited.
[0003] As it is known, the letter-boxes are provided with a mouth, generally closed by a
leaf hinged at a box wall.
[0004] It sometimes happens, however, that foreign bodies introduced in the boxes cause
various inconveniences at the moment of collecting the correspondence, with which
they have mixed.
[0005] It is therefore a deeply felt exigency that of having means available that are capable
of avoiding this inconvenience; this requirement is met by the box according to the
invention, being provided with devices, located in the proximity to the mouth, for
directing foreign bodies - if any - having sizes and/or weight different from the
letters, towards a zone separate from that where the mail introduced in the box is
deposited.
[0006] In particular, inside the box there is provided a movable wall that is so designed
as to be shifted only by items having the same sizes as the correspondence; they can
thus have access to the collecting zone, whilst foreign bodies - if any - fall onto
a chute heading to a separate container.
[0007] The present invention will now be described in detail, with special reference to
the accompanying drawings, in which:
- Fig. 1 is a schematic section of a box provided with the devices according to the
invention;
- Fig. 2 shows the box of Fig. 1 at the moment when an item other than a letter or
the like is being introduced in it;
- Fig. 3 shows the same box as a letter is being introduced in it;
- Fig. 4 is a schematic section of a different embodiment of the invention.
[0008] With reference to Fig. 1, the letter box according to the invention is so shaped
as to have the front wall 1 in a recessed position. A leaf 2, hinged at 3 to the wall
1, forms with the latter a chamber 4, set in the front part of the box. On the inside
of the box, an inclined plane 5 is secured to leaf 2 and is heading towards a chute
6 that is joined to the upper edge of wall 1.
[0009] A movable wall 7 is hinged at 8 to the pair of arms 11 inside leaf 10 that is located
above the inclined plane 5, about at an height corresponding to that of the upper
edge of the mouth 9 of the box. Wall 7, accordingly, is resting against the upper
free edge of chute 6.
[0010] The box mouth is closed by a leaf 10 whose ends are secured to a pair of supports
or arms 11, hinged at 12 in the proximity to the rear wall of the box.
[0011] The working takes place as follows:
after lifting leaf 10, the correspondence (that is introduced through mouth 9) will
shift the movable wall 7 and deposit at the bottom of the box.
[0012] Should items whose size or weight are not fit to shift wall 7 be introduced, said
items will slide along the inclined plane 5, passing then onto chute 6 wherefrom they
fall inside chamber 4 (see Fig. 2).
[0013] The items could then be discharged or collected by simply lifting leaf 2.
[0014] Fig. 4 shows a different embodiment of the same principle, wherein the movable wall
7 is replaced by a pair of flexible membranes 14 forming an inclined plane along which
items other than correspondence slide, and gather into the front chamber; said membranes
open, instead, if there are introduced letters or the like, that can thus head towards
the collecting area.
[0015] Of course both the sizes and the employed materials can vary as a function of the
different requirements of use.
1. Letter box characterized by providing a wall dividing the inner room in two compartments,
the rear one intended to collect the mail, and the front one for receiving foreign
bodies - if any - introduced in the box itself, the access to said correspondence-receiving
compartment being closed by a movable wall arranged in such a way as to open only
if items resembling the correspondence in size and shape are introduced.
2. Letter box characterized by the fact of providing, besides the first mouth covered
by a leaf, a second mouth covered by a hinged movable leaf, openable by effect of
the correspondence weight; a chute in contact with the first leaf, and a counterchute
in contact with the second leaf; by virtue of these chutes, the items whose weight
and sizes are different from those of the correspondence will gather in a compartment
separate from the correspondence compartment.
3. Letter box according to claim 2, wherein the front wall is hinged, so as to be
openable in order to provide an access to the foreign bodies compartment.
4. Letter box according to claim 2, wherein the access to the correspondence compartment
is possible either through a hinged leaf, or through a pair of flexible membranes,
the distance of the latter from the box mouth being equal to the minimum size of the
correspondence.
5. Letter box according to claims 2, 3, characterized by providing a guillotine-like
hinged first leaf 11 suitable to protect the inside of the box against wind and rain.