U.S. patent number 3,916,803 [Application Number 05/433,893] was granted by the patent office on 1975-11-04 for loading platform.
Invention is credited to Emilia Miguel Garcia.
United States Patent |
3,916,803 |
Garcia |
November 4, 1975 |
Loading platform
Abstract
An improved loading platform or pallet formed in a single body
or element by molding includes eight rectangular external elongated
frame partitions, aligned in pairs, forming the edges of a
rectangle, the vertices and a central zone of which are free. The
pallet also includes eight internal partitions, arranged in
parallel pairs, in the form of a cross. The internal and external
partitions have therein aligned openings which form tunnels for the
receipt of the fork of a fork lift truck. The eight internal
partitions extend outwardly from the arms of an X-shaped core of
the pallet. The upper and lower faces of the pallet include plates
which form the actual load bearing surfaces.
Inventors: |
Garcia; Emilia Miguel (77
Barcelona, ES) |
Family
ID: |
8364971 |
Appl.
No.: |
05/433,893 |
Filed: |
January 16, 1974 |
Foreign Application Priority Data
Current U.S.
Class: |
108/57.28;
108/55.3 |
Current CPC
Class: |
B65D
19/0034 (20130101); B65D 2519/00407 (20130101); B65D
2519/00268 (20130101); B65D 2519/00318 (20130101); B65D
2519/00363 (20130101); B65D 2519/00412 (20130101); B65D
2519/00069 (20130101); B65D 2519/00034 (20130101); B65D
2519/00288 (20130101) |
Current International
Class: |
B65D
19/00 (20060101); B65D 019/24 () |
Field of
Search: |
;108/51-56,57,58
;206/386 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Frazier; Roy D.
Assistant Examiner: Lyddane; William E.
Attorney, Agent or Firm: Wenderoth, Lind & Ponack
Claims
I claim:
1. In a loading platform of the pallet type including an upper
substantially flat rectangularly-shaped plate, a lower
substantially flat rectangularly-shaped plate, and partition
members joining said upper and lower plates and extending
perpendicular thereto, said partition members forming four lateral
sides of said pallet and forming reinforcing means for supporting
the weight of a load placed on said upper plate; the improvement
wherein:
said partition members comprise:
an X-shaped core element positioned in the geometric center of said
pallet and having four legs;
eight internal partition elements, two of which extend outwardly
and in directions perpendicular to each other from the outer end of
each of said four legs of said core element, said internal
partitions being arranged in the form of a cross having four arms,
each of said arms being formed by a pair of said internal
partitions extending parallel to each other outwardly from said
core element to substantially the mid-point of one of the lateral
sides of said pallet; and
eight external partition elements, each of said lateral sides of
said pallet being formed by two of said external partition
elements, each of the two exernal partition elements forming each
lateral side joining one of the two internal partition elements
forming the respective arm of said cross extending to said each
lateral side;
each of said internal and external partition elements having
therein openings which align and coincide in directions of said
pallet parallel to said lateral sides, the thus aligning and
coinciding openings forming tunnel means for receiving the arms of
the fork of a fork lift truck; and
all of said partition members and said upper and lower plates being
formed in an integral single piece.
2. The improvement claimed in claim 1, wherein each of said
external partition elements are positioned inwardly of the outer
ends of the respective of said internal partition elements and
joined thereto at points spaced from said outer ends thereof; and
said partition members further comprise hollow columns joined to
said external partition elements at the vertices or corners of said
pallet.
3. The improvement claimed in claim 1, further comprising
triangular shaped reinforcing members arranged parallel to each
other and in rows connected to said external partition elements and
to said upper plate and said lower plate.
4. The improvement claimed in claim 1, wherein each of said upper
and lower plates have therein an inwardly extending depression,
said depression being in the form of a cross and extending inwardly
into the spaces formed between said pairs of internal partitions,
said depressions defining in each of said upper and lower plates
four non-depressed zones of equal rectangular size, each of said
zones having therein orifices defined by downwardly extending
flanges.
5. The improvement claimed in claim 4, wherein said orifices are
square shaped.
6. The improvement claimed in claim 4, further comprising, on the
outer surfaces of said upper and lower plates, anti-skid means for
increasing the frictional properties of said surfaces; said
anti-skid means comprising a plurality of ribs having a rounded
cross-section, said ribs being arranged in rows extending
peripherally of said plate.
7. The improvement claimed in claim 6, wherein said ribs, on said
upper plate are also arranged in rows between said orifices.
Description
BACKGROUND OF THE INVENTION
This invention relates to an improved loading platform of the type
commonly known as pallet, which is novel due to the fact that it is
formed of a moldable material in a single piece body.
SUMMARY OF THE INVENTION
The pallet of the invention generally comprises a substantially
rectangular frame, each side of which is composed of two aligned
portions formed by partitions of equal length. The sides of the
rectangular frame are joined by means of other internal partitions
which are grouped about and extend outwardly from a central portion
which is approximately X-shaped. From the ends of the arms of the
X-shaped portion extend eight internal partitions, grouped in pairs
to form a cross in such a manner that each of the double legs of
the cross are joined to the ends of the arms of the X-shaped
portion and to a central zone of one of the sides of the exterior
rectangular frame.
The structure is completed by means of two plates which form the
upper and lower surfaces of the pallet. Such plates have therein a
series of weight-reducing holes and non-skid ribs, while the
corners of these plates are provided with hollow columns which are
precisely positioned at the vertices of the rectangular frame.
The central area of the rectangular frame is hollow, and each
portion of each side thereof has an orifice which aligns with a
similar orifice in an internal partition forming a leg of the
internal cross. The aligned orifices thus form tunnels for the
receipt of the arms of the fork of a conventional fork lift
truck.
BRIEF DESCRIPTION OF THE DRAWINGS
The structure of the invention is illustrated in more detail in the
attached drawings, wherein:
FIG. 1 is a lower plan view of a pallet according to the
invention.
FIG. 2 is an upper plan view of such pallet.
FIG. 3 is a section taken along III--III of FIG. 2.
FIG. 4 is an elevational view of the pallet along one of the longer
surfaces thereof.
FIG. 5 is an elevational view similar to that of FIG. 4, but taken
along one of the shorter surfaces of the pallet.
FIG. 6 is a section taken along line VI--VI in FIG. 4.
FIG. 7 is a section taken along line VII--VII in FIG. 1.
FIG. 8 is a section taken along line VIII--VIII in FIG. 1.
FIG. 9 is a perspective view illustrating the structure of the
pallet, but with the upper plate surface thereof removed to
facilitate illustration of the internal structural arrangement.
DETAILED DESCRIPTION OF THE INVENTION
As can be seen with particular reference to FIG. 9, a pallet
according to the present invention is formed of an X-shaped central
core or nucleus 1 having extending from the end of each leg
thereof, and in directions perpendicular to each other, a pair of
internal partitions 2. Thus, there is formed a cross, each arm
thereof being formed by a pair of partitions 2, and the center of
which is core 1. Each partition 2 has therethrough a preferably
rectangular opening 4 aligning and coinciding with other similar
openings 5 in external partitions 3 which form the external side
surface of the rectangular frame of the pallet. The coincidence of
the preferably rectangular openings or windows 5 in the external
frame, and the preferably rectangular openings or windows 4 in the
legs of the cross, thus provide tunnels, two at each side or side
surface of the pallet, for the receipt of the arms of the fork of a
conventional fork lift truck.
External partitions 3 join internal partitions 2 at positions
slightly recessed inwardly with respect to the length thereof, so
that the zones corresponding to the imaginary vertices or corners
of the hexagonal prism-shaped pallet are provided with hollow
columns 6 which reinforce the assembly. Brackets or braces 7 are
also provided for the purpose of reinforcing the pallet. Such
brackets are triangular in shape and are arranged, at regular
intervals and parallel to each other, in each of the gaps in the
side surfaces of the pallet formed by the partitions 3 being
inwardly recessed with respect to the outer ends of partitions 2
and columns 6.
The upper and lower plates which constitute the actual pallet
loading surfaces have therein a series of orifices 8, which are
preferably square-shaped, and whose sides have downwardly facing
wings or flanges 9 which act as a reinforcement of the internal
partitions 2.
The hollow areas 11, which are formed between pairs of partitions 2
along the axes of symmetry of the pallet, have formed in the
respective upper and lower plates, depressions 12 which cover the
complete length of areas 11, thus forming canals which, with the
help of orifices 13 in both the upper and lower plates of the
pallet, act as drains.
The hollow columns 6 may also be provided with drain holes.
The external portion of the loading surfaces, i.e. upper and lower
plates which cover the internal structure of the pallet, may be
provided with ribs or flanges 14 such as those represented in FIG.
3. Such ribs 14 act as anti-skid elements for the pallet when they
are formed into rows.
The device of the present invention will be formed in a single
element or integral piece and will thus overcome the difficulties
caused by the use of conventional pallets made, for example, of
separate plates or sheets, screwed or nailed to each other, which
with use generally tend to come loose or separate.
On the other hand, due to the nature of the material, which will
preferably be plastic, from which the pallet is made, the pallet is
resistant to the atmosphere. Further, the pallet of the invention
is light in weight but has a high degree of strength and
rigidity.
The orifices distributed on the upper and lower surfaces of the
pallet reduce the weight thereof, while the wings or flanges 9
which project inwardly from the faces of the pallet, reinforce the
assembly.
It is not considered necessary to further extend this description,
since any person skilled in the art will readily understand the
concept of the invention as well as the advantages derived from its
industrial exploitation.
Therefore, it will be understood that modifications may be made to
the specific structural arrangement discussed above without
departing from the scope of the present invention.
* * * * *