U.S. patent number 3,699,901 [Application Number 05/057,693] was granted by the patent office on 1972-10-24 for pallet.
This patent grant is currently assigned to Oakland Plastics Corporation. Invention is credited to James M. Cook, III.
United States Patent |
3,699,901 |
Cook, III |
October 24, 1972 |
PALLET
Abstract
A pallet made of a plastic or organic polymeric material and of
a unitary surface having a deck providing a load supporting
surface. A plurality of spaced hollow legs project from the
opposite surface of the deck. A plurality of hollow ribs project
from the same opposite surface to define channels in the load
supporting surface. The legs have drain holes in the bottom
thereof. Each channel extends between a pair of legs and has a
bottom which slopes downwardly to each of the pair of legs from a
high point intermediate each pair of legs. Pairs of banding ramps
are disposed on opposite extremities of the periphery of the pallet
and project from the opposite surface of the deck. Each ramp
presents a sloping surface extending upwardly from an adjacent rib
toward the adjacent extremity of the deck. Metal channel-shaped
reinforcing members are disposed in at least some of the channels
in the load supporting surface. A reinforcing platform extends
across and is attached to the extremities of the legs in a
plurality of rows of legs. The platform includes a runner extending
along and attached to the extremities of the legs in each row and a
plate interconnecting adjacent runners.
Inventors: |
Cook, III; James M. (Bloomfield
Hills, MI) |
Assignee: |
Oakland Plastics Corporation
(Troy, MI)
|
Family
ID: |
22012178 |
Appl.
No.: |
05/057,693 |
Filed: |
July 23, 1970 |
Current U.S.
Class: |
108/57.25;
108/55.5 |
Current CPC
Class: |
B65D
19/004 (20130101); B65D 2519/00288 (20130101); B65D
2519/00034 (20130101); B65D 2519/00572 (20130101); B65D
2519/00069 (20130101); B65D 2519/00323 (20130101); B65D
2519/0094 (20130101); B65D 2519/00562 (20130101); B65D
2519/00318 (20130101); B65D 2519/00338 (20130101); B65D
2519/00432 (20130101); B65D 2519/00557 (20130101); B65D
2519/00273 (20130101); B65D 2519/008 (20130101) |
Current International
Class: |
B65D
19/00 (20060101); B65d 019/38 () |
Field of
Search: |
;108/51,58 ;280/21 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gay; Bobby R.
Assistant Examiner: Finch; Glenn O.
Claims
The embodiments of the invention in which an exclusive property or
privilege is claimed are defined as follows:
1. A pallet made of organic polymeric material comprising: a
unitary structure having a deck providing a load supporting
surface; a plurality of spaced, hollow legs projecting from the
opposite surface of said deck; a plurality of hollow ribs
projecting from said opposite surface to define channels in said
load supporting surface; said legs having drain holes in the
bottoms thereof; each of said channels extends between a pair of
said legs and has a bottom which slopes downwardly to each of said
pair of legs from a high point disposed intermediate said pair of
legs.
2. A pallet as set forth in claim 1 including a side wall extending
from said load supporting surface about the periphery of said
deck.
3. A pallet as set forth in claim 1 wherein said legs are aligned
in rows, some of said channels are spaced inwardly from and
disposed about the periphery of said deck and some of said channels
extend between legs of different rows.
4. A pallet as set forth in claim 3 including at least one pair of
banding ramps disposed on opposite extremities of said periphery
and projecting from said opposite surface of said deck, each of
said ramps being disposed to present a sloping surface extending in
a direction from an adjacent rib toward the adjacent extremity of
said deck, reinforcing members disposed in at least some of said
channels, and a runner extending along and attached to the
extremities of the legs in each row, each runner having a base and
side flanges extending therefrom and engaging the sides of said
legs so that each leg is nested within a runner.
5. A pallet made of organic polymeric material comprising: a
unitary structure having a deck providing a load supporting
surface; a plurality of spaced legs projecting from the opposite
surface of said deck; a plurality of ribs projecting from said
opposite surface; said ribs being spaced inwardly from and disposed
about the periphery of said deck and with each such rib extending
between a pair of said legs; and at least one pair of banding ramps
disposed on opposite extremities of said periphery and projecting
from said opposite surface of said deck; each of said ramps being
disposed to present a sloping surface extending in a direction from
an adjacent rib toward the adjacent extremity of said deck.
6. A pallet as set forth in claim 5 wherein said ribs are hollow to
define channels in said load supporting surface, said ramps are
hollow to define ramp channels in said load supporting surface
which extend downwardly from said extremity to said adjacent
rib.
7. A pallet as set forth in claim 6 including reinforcing members
disposed in at least some of said channels defined by said
ribs.
8. A pallet as set forth in claim 7 wherein said reinforcing
members are of metal and are U-shaped in cross section.
9. A pallet comprising: a deck structure made of organic polymeric
material and having a load supporting surface; a plurality of
spaced legs projecting from the opposite surface of said deck; said
legs being aligned in rows; a runner extending along and attached
to the extremities of the legs in each row; each runner having a
base and side flanges extending therefrom and engaging the sides of
said legs so that each leg is nested within a runner.
10. A pallet as set forth in claim 9 wherein each runner includes
an end flange at each end thereof which is integral with said side
flanges and engages the adjacent leg.
11. A pallet as set forth in claim 9 including plates extending
between and interconnecting adjacent runners.
12. A pallet as set forth in claim 11 wherein said plates extend
between adjacent runners at the upper extremities of said side
flanges.
13. A pallet as set forth in claim 12 wherein each runner includes
an end flange at each end thereof which is integral with said side
flanges and engages the adjacent leg.
14. A pallet as set forth in claim 13 wherein said runners are
adhesively attached to said extremities of said legs.
15. A pallet comprising: a unitary deck structure made of organic
polymeric material and having a deck providing a load supporting
surface; a plurality of spaced legs projecting from the opposite
surface of said deck; said legs being aligned in rows; a
reinforcing platform extending across and attached to the
extremities of the legs in a plurality of rows.
16. A pallet as set forth in claim 15 wherein said platform
includes a runner extending along and attached to the extremities
of the legs in each row and a plate interconnecting adjacent
runners.
17. A pallet as set forth in claim 16 wherein each runner has a
base and side flanges extending therefrom and engaging the sides of
said legs so that each leg is nested within a runner.
18. A pallet as set forth in claim 17 wherein said plates extend
between adjacent runners at the upper extremities of said side
flanges.
19. A pallet as set forth in claim 18 wherein each runner includes
an end flange at each end thereof which is integral with said side
flanges and engages the adjacent leg.
20. A pallet as set forth in claim 15 including snap-in means
removably connecting said platform to said legs.
21. A pallet comprising: a unitary deck structure made of organic
polymeric material and having a deck providing a load supporting
surface; a plurality of spaced legs projecting from the opposite
surface of said deck; support means for supporting said legs;
snap-in means for removably connecting said support means to said
legs.
22. A pallet as set forth in claim 21 wherein said snap-in means
comprises a male portion and a receiving portion into which said
male portion is snapped into mechanical interlocking
engagement.
23. A pallet as set forth in claim 22 wherein said receiving
portion is defined by a hole in the bottom of at least some of said
legs and said male portion extends from said support means.
Description
This invention relates to a pallet made of a plastics or organic
polymeric material. Such pallets are handled by fork lift vehicles
and are usually rectangular in configuration and have an upper load
supporting surface upon which articles are disposed for handling,
storage and transport.
An object and feature of this invention is to provide such a pallet
having a deck providing a load supporting surface and a plurality
of spaced hollow legs projecting from the opposite surface of the
deck along with a plurality of hollow ribs which define channels in
the load supporting surface and which channels extend between the
legs and slope downwardly from the middle thereof to the legs with
the legs having drain holes in the bottom thereof.
Another object and feature of this invention is to provide such a
pallet having a plurality of legs and ribs spaced inwardly from and
disposed about the periphery thereof with at least one pair of
banding ramps disposed on opposite extremities of the periphery and
providing sloping surfaces extending upwardly from an adjacent rib
toward the adjacent extremity of the pallet.
Still another object and feature of this invention is to provide
such a pallet having a deck with legs and ribs projecting from a
surface of the deck and a reinforcing member associated with at
least one of the ribs and having a strength greater than the
strength of the plastics or organic polymeric material at the
deck.
Yet a further object and feature of this invention is to provide
such a pallet having a deck portion with rows of legs extending
from a surface of the deck with a runner member extending along and
attached to the extremities of the legs in each row with each
runner member having a base and side flanges extending therefrom
and engaging the sides of the legs.
A still further object and feature of this invention is to provide
such a pallet having a deck and a plurality of legs projecting from
a surface of the deck and aligned in rows and a reinforcing
platform extending across and attached to the extremities of the
legs in a plurality of rows.
Other objects and attendant advantages of the present invention
will be readily appreciated as the same becomes better understood
by reference to the following detailed description when considered
in connection with the accompanying drawings wherein:
FIG. 1 is a plan view of a preferred embodiment of the instant
invention;
FIG. 2 is a view taken substantially along line 2--2 of FIGURE
1;
FIG. 3 is a fragmentary cross sectional view taken substantially
along line 3--3 of FIGURE 1;
FIG. 4 is an enlarged fragmentary cross sectional view taken
substantially along line 4--4 of FIGURE 1; and
FIG. 5 is an enlarged fragmentary cross sectional view taken
substantially along line 5--5 of FIGURE 1.
Referring now to the drawings wherein like numerals indicate like
or corresponding parts throughout the several views, a preferred
embodiment of a pallet constructed in accordance with the instant
invention is generally shown at 10.
The pallet 10 includes a unitary deck structure generally indicated
at 12. The deck structure 12 is made of a plastics or organic
polymeric material. Examples of such materials are polyethylene,
polyprophylene and various acetal resins. The deck 12 provides a
load supporting surface 14. A plurality of spaced, hollow legs 16
project from the opposite or undersurface 18 of the deck 12. Also
included are a plurality of hollow ribs 20, 22, 24 and 26
projecting from the opposite surface 18 to define channels disposed
in the load supporting surface 14.
The pallet is generally rectangular and the legs 16 are disposed in
a plurality of parallel rows. The legs 16 are tapered downwardly to
their respective bottoms 28. Each of the legs 16 has a drain hole
30 in the bottom thereof.
Each of the channels, as defined by the ribs 20, 22, 24 and 26,
extends between a pair of the legs 16. Also, each channel is
generally U-shaped and has a bottom which slopes downwardly to the
pair of legs at the end thereof from a high point disposed
intermediate the legs. The high points for the channels defined by
the ribs 20 are indicated at 32. The high points for the channels
defined by the ribs 22 and 26 are indicated at 34.
A side wall or flange 36 extends upwardly from the load supporting
surface 14 about the periphery of the deck 12.
It will be noted that the channels as defined by the ribs 20 are
spaced inwardly from and disposed about the periphery of the deck
12 and the remaining channels as defined by the ribs 22, 24 and 26
extend between legs of different rows or to the centrally disposed
leg.
There are included two pairs of banding ramps 38 disposed on
opposite extremities of the periphery of the deck and projecting
from the opposite or undersurface 18 of the deck 12. Each ramp 38
is disposed to present a sloping surface extending upwardly from an
adjacent rib or channel 20 to the adjacent extremity of the deck
12. Metal bands may be disposed beneath the pallet and about
articles stored on the pallet to retain the articles to the pallet
with the bands extending over the upwardly inclined surfaces of the
ramps 38. The disposition or sloping of the ramps 38 mitigates high
linear stress loads in the band due to the band engaging sharp
edges formed by surfaces joining one another at an angle of
90.degree. or less.
The ramps 38 are hollow to define ramp channels in the load
supporting surface 14. The channels formed by the ramps 38 extend
down from the extremity of the deck 12 to the adjacent rib or
channel 20.
A reinforcing member 40 is disposed in the channels defined by the
ribs 26. Each reinforcing member 40 is U-shaped in cross section
and is of a material having strength greater than the organic
polymeric material of the deck 12. Preferably, the reinforcing
members 40 are made of metal such as steel. The reinforcing members
40 are secured to the ribs adhesively although it will be
appreciated that they may be secured by appropriate fasteners or
other means. The legs of each U-shaped reinforcing member engage
the opposite walls of the channels defined by the ribs 26 and the
bottoms of the reinforcing members engage the bottoms of the
channels. Although only the channels defined by the ribs 26 are
shown as including reinforcing members 40, it will be appreciated
that such reinforcing members 40 may be utilized with any of the
other ribs 20, 22 or 24.
Also included are the runners 42. Each runner has a base and side
flanges 44 which extend upwardly from the base. The side flanges 44
engage and are coextensive with the side of the legs 16 so that
each leg is nested within a runner. Each runner extends along and
is attached to the extremities of the legs in each row. The runners
44 are attached to the legs by an adhesive but may also be attached
by appropriate fasteners or other means as will be discribed
hereinafter. Each runner also includes an end flange 46 at each end
thereof which is integral with the side flanges 44 and which also
engages an adjacent leg 16.
The runners 42 may be utilized alone or may form a platform with
the plates 48. Each plate 48 extends between and interconnects the
runners 42. The plates 48 extend between adjacent runners 42 at the
upper extremities of the side flanges 44 thereof. Furthermore, the
plates 48 may be made integrally with the runners 42. The plates 48
and the runners 44 define a reinforcing platform extending across
and attached to the extremities of the legs 16 in a plurality of
rows. The runners 42 have drain holes 50 therein which are aligned
with the drain holes 30 in the legs 16. Thus, water in the channels
defined by the various ribs will flow into the bottoms of the legs
and will drain through the drain holes 50 therein.
The combination of the runners 42 and the plates 48, which may be
integral, define support means for supporting the legs 16 upon a
surface and as alluded to above, other means may be utilized to
attach this support means to the legs. Such an alternative is shown
at the middle leg 16 in FIG. 2. A snap-in means is generally shown
at 52 for removably connecting a runner 42 of the support means to
the legs. The snap-in means 52 includes a male portion extending
from the runner. The male portion is radially compressible and has
a head inserted through and retained in a hole in the bottom of a
leg 16. The hole defines a receiving portion and may or may not be
a drain hole 30. In other words, each leg may have a drain hole and
a second hole for receiving the male portion of the snap-in means.
The male portion is therefore snapped into mechanical interlocking
engagement with a hole in a leg.
As it will be appreciated from the foregoing description, the
instant invention relates to a pallet employing various features
which may be employed singularly or in various combinations with
one another. For example, the sloping channels, reinforcing
members, banding ramps, runners, and reinforcing platform may each
be utilized separately as in various combinations with one
another.
The invention has been described in an illustrative manner, and it
is to be understood that the terminology which has been used is
intended to be in the nature of words of description rather than of
limitation.
Obviously, many modifications and variations of the present
invention are possible in light of the above teachings. It is,
therefore, to be understood that within the scope of the appended
claims, the invention may be practiced otherwise than as
specifically described.
* * * * *