U.S. patent number 3,650,224 [Application Number 04/852,619] was granted by the patent office on 1972-03-21 for warehousing pallet.
This patent grant is currently assigned to William C. Holden. Invention is credited to Frank J. Aquino, Joseph A. Aquino, Robert F. Petix.
United States Patent |
3,650,224 |
Petix , et al. |
March 21, 1972 |
WAREHOUSING PALLET
Abstract
A warehousing pallet made up of two or more sections and having
foot means projecting from each of the sections defining lateral
openings for receiving the forks of a lift truck. Each of these
sections has releasable attaching means arranged for releasably
attaching one section to another. The releasable attaching means
comprise dovetail joints formed in the side edges of the
sections.
Inventors: |
Petix; Robert F. (Beaverton,
OR), Aquino; Joseph A. (Mission Hills, CA), Aquino; Frank
J. (Agoura, CA) |
Assignee: |
Holden; William C.
(N/A)
|
Family
ID: |
25313805 |
Appl.
No.: |
04/852,619 |
Filed: |
August 25, 1969 |
Current U.S.
Class: |
108/54.1;
108/901; 108/56.1 |
Current CPC
Class: |
B65D
19/0075 (20130101); B65D 21/0204 (20130101); B65D
2519/00268 (20130101); B65D 2519/00069 (20130101); B65D
2519/00034 (20130101); B65D 2519/00338 (20130101); B65D
2519/00746 (20130101); B65D 2519/00771 (20130101); B65D
2519/00293 (20130101); Y10S 108/901 (20130101); B65D
2519/00323 (20130101) |
Current International
Class: |
B65D
19/00 (20060101); B65D 21/02 (20060101); B65d
019/00 (); B65d 019/12 () |
Field of
Search: |
;108/51-58
;220/23.2,23.4 ;52/591,594 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gilliam; Paul R.
Claims
Having thus described our invention, we claim:
1. A warehousing pallet comprising:
a. at least two separate molded sections each having defining side
edges,
b. a top load supporting portion on said sections,
c. foot means depending from each of said sections and defining
lateral openings therebetween for receiving the forks of a lift
truck,
d. one of said sections having a vertical recess on one side edge
thereof and the other of said sections having a vertical tongue
dimensioned and arranged to fit in said recess,
e. said recess and tongue comprising a vertical dove-tailed joint
such that one section is releasably interlocked against lateral
movement with the other section by vertical interengaging movement
of said tongue into said recess,
f. said recess and tongue being defined by vertically tapered wall
means to form the tapered dove-tailed joint, with the tongue of one
section being seated vertically in the recess of the other section
whereby the sections are held locked together vertically by a load
on the top load supporting portion thereof.
2. The pallet of claim 1 wherein
a. said foot means comprise hollow open bottom extensions leading
from said load supporting portion,
b. a depending core in said foot means,
c. and reinforcing webs extending between said foot means and their
respective cores.
3. The pallet of claim 1 wherein
a. said top load supporting portion comprises plate means,
b. reinforcing ribs on the undersurface of said plate means,
c. said foot means comprising hollow open bottom extensions leading
from said plate means,
d. a depending core in said foot means,
e. and reinforcing webs extending between said foot means and their
respective cores.
Description
BACKGROUND OF THE INVENTION
This invention relates to new and useful improvements in
warehousing pallets.
Pallets are now commonly used for supporting loads to be moved by
lift trucks. Such pallets include a load supporting top portion and
several foot members between which are disposed side openings for
receiving the forks of a lift truck. To save manual handling of a
load, the manufacturer in many cases places a specific order on a
pallet and the load, together with the pallet, is shipped to the
distributor or retailer.
The pallets whether used for long hauls or merely for warehousing
are subjected to considerable abuse and are frequently damaged.
Many of the pallets now in use comprise wooden pallets which when
damaged are generally discarded because of the difficulty in
repairing them. In many cases such pallets are only partially
damaged but it is not feasible to rebuild the entire pallet for
repairing the damage. Some pallets heretofore employed, such as
covered by U.S. Pat. Nos. 3,216,376 and 3,256,839 can be
disassembled and therefore possibly repairable. However, repair is
not easy, and as in the case of the wooden pallets it would be just
as economically feasible to discard the pallet as to pay for
repair.
SUMMARY OF THE INVENTION
According to the present invention and forming a primary objective
thereof a pallet consists of at least two sections having
releasable locking means so that the sections can be readily
attached and detached, whereby if one section should become damaged
or worn it can be readily replaced.
More particular objects of the present invention are to provide a
warehousing pallet made up of a number of sections, each of said
sections comprising a top load supporting plate and four corner
foot members, and also including male and female dove-tailed joint
portions formed in the side edges of the foot members whereby the
sections are capable of being attached together without fasteners;
to provide individual pallet sections of the type described which
are of a structure facilitating molding them from plastic in a
lightweight but rugged unit; and to provide a novel structural
arrangement of the molded foot portions and other reinforcing means
for providing a rugged pallet.
The invention will be better understood and additional objects and
advantages will become apparent from the following description
which illustrates a preferred form of the device.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view of a pallet embodying features of the
present invention, said pallet being illustrated as comprising four
of the interconnecting sections;
FIG. 2 is an enlarged fragmentary sectional view taken on the line
2--2 of FIG. 1;
FIG. 3 is an enlarged bottom plan view of one section of the
pallet; and
FIG. 4 is an elevational view, partly in section, taken on the line
4--4 of FIG. 3.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now in particular to the drawings a pallet is designated
by the numeral 10 in FIG. 1. Such pallet is made up of four
individual sections 12, 14, 16, and 18. Each of the four sections
is of identical structure, having a top plate or load supporting
portion 20 and foot portions 22, 24, 26, and 28, FIGS. 2, 3 and 4,
disposed at the corners. Lateral or side openings 30, FIG. 3, are
provided between the foot portion to receive the forks of a lift
truck.
Each foot portion comprises a depending hollow shell-like enclosure
which is open at the bottom. Such foot portions have a box-like
core 32 in a portion thereof which depends from the top load
supporting plate 20 to the plane of the bottom edge of the foot
portion to provide load bearing support for the foot portion. The
shell-like cores 32 preferably are hollow and are tapered to a
smaller dimension toward the bottom. Upright webs 34 are provided
between the foot portions 22 and the cores 32 to form a
substantially rigid structure.
Each of the sections 12, 14, 16 and 18 is of identical
construction. The foot portions 22, 24, 26 and 28 and the sides of
the pallet sections are selectively notched such that two adjacent
sides of each section have dovetail-type recesses 36 and two
adjacent sides have dovetail-type tongues 38. By this arrangement,
recesses 36 and tongues 38 are disposed on opposite sides from each
other, and in attaching two sections together, a tongue 38 of one
pallet section is merely slipped into a recess 36 of another pallet
section. The dovetail joints securely lock the sections together
with each section having a connection with adjacent side sections.
The selected tongue and recess arrangement forms recesses 40 and
projections 42 at the corners, the recesses 40 being interengaged
by projections 40 on adjacent sections.
The edges 44 of the tongues 36 and 40 and recesses are tapered,
best seen in FIGS. 1 and 2, so as to form a vertical stopping
engagement between the sections whereby the top surfaces of the
pallet sections will all be held in a common plane. The top plate
20 has a plurality of ribs 46 on its under surface for reinforcing
such plate.
The present pallet was designed particularly for molding from
plastic to make it durable and light in weight. The hollow foot
portions 22, 24, 26 and 28 contribute to the light weight of the
pallet but yet provide a support which can stand a heavy
compressive load. If one of these sections should become damaged it
is merely necessary to replace it with a new section. Such is
accomplished by lifting out the damaged section and fitting in the
new section. No fasteners are required, and thus no appreciable
time is involved in replacing a section.
It is to be understood that the form of our invention herein shown
and described is to be taken as a preferred example of the same and
that various changes in the shape, size and arrangement of parts
may be resorted to without departing from the spirit of our
invention. For example, a pallet may be made up of only two or
three interlocking sections instead of four and further yet more
than four sections may be used if desired.
* * * * *