U.S. patent number 3,759,193 [Application Number 05/169,450] was granted by the patent office on 1973-09-18 for pallet skids.
Invention is credited to Ethridge S. Branch.
United States Patent |
3,759,193 |
Branch |
September 18, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
PALLET SKIDS
Abstract
Pallet support members with recessed-shaped sections made from a
sheet material of uniform thickness and having a pair of V-shaped
parallel channels on one surface of the sheet material, spaced
apart from each other a predetermined distance and a second pair of
V-shaped parallel channels in the second surface of the sheet
material formed intermittent and parallel to the first pair of
channels and spaced apart therefrom a predetermined distance
whereby said sheet material being connected along the apices of the
V-shaped channels to produce a recess-shaped section when the
surfaces between immediately adjacent channels are angularly
displaced to substantially close said V-shaped channels thereby
defining a pallet support member as disclosed herein. Preferably
the support members are formed in pairs in longitudinal frame
members of a platform.
Inventors: |
Branch; Ethridge S. (Adel,
GA) |
Family
ID: |
22615756 |
Appl.
No.: |
05/169,450 |
Filed: |
August 5, 1971 |
Current U.S.
Class: |
108/53.3;
108/901 |
Current CPC
Class: |
B65D
19/0097 (20130101); B65D 2519/0094 (20130101); B65D
2519/00029 (20130101); Y10S 108/901 (20130101); B65D
2519/00323 (20130101); B65D 2519/00064 (20130101); B65D
2519/00562 (20130101); B65D 2519/00024 (20130101); B65D
2519/00069 (20130101); B65D 2519/00572 (20130101); B65D
2519/00059 (20130101); B65D 2519/00298 (20130101); B65D
2519/00338 (20130101); B65D 2519/00557 (20130101); B65D
2519/00034 (20130101); B65D 2519/00293 (20130101) |
Current International
Class: |
B65D
19/00 (20060101); B65d 019/00 () |
Field of
Search: |
;108/51-58 ;29/148
;312/330,214 ;264/54 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Zugel; Francis K.
Assistant Examiner: Finch; Glenn O.
Claims
I claim:
1. A pallet to support a load spaced from a floor comprising:
a plurality of transverse members;
at least one first longitudinal frame member securably attached to
said transverse members;
at least two second longitudinal frame members securably attached
to said transverse members;
said second longitudinal frame members carrying sheet material
members having two surfaces and cooperating with said second
longitudinal members to provide at least two recesses adapted to
receive a device for lifting the pallet said sheet material members
having a first pair of generally V-shaped parallel channels in said
first surface spaced apart a predetermined distance from each other
and extending transversely from one edge of the first surface to
the opposite edge;
a second pair of V-shaped parallel channels in the second surface
formed intermittent and parallel to said first pair of channels and
spaced apart from each other a predetermined distance;
each of said first pair and second pair of V-shaped parallel
channels independently defining an angle of not greater than about
50.degree.;
said sheet material members being connected along the apices of
said V-shaped channels there to produce recess-shaped sections
having open sections facing in the direction of said transverse
members when the surfaces between immediately adjacent channels are
angularly displaced to substantially close said V-shaped
channels.
2. A pallet as claimed in claim 1 including apertures between said
transverse members and longitudinal frame members in alignment with
said recess-shaped sections to permit stacking of a plurality of
said pallets in nested relation.
3. A pallet support member as claimed in claim 1 wherein said sheet
material comprises wood.
Description
BACKGROUND OF THE INVENTION
The present invention relates to spacing means for supporting
pallet platforms and more particularly to pallet support members or
skids formed from a sheet material of substantial uniform
thickness.
In the field of pallet design several methods are already known for
supporting and spacing the surface of the pallet from the surface
on which the pallet rests, as indicated by the following U.S. Pat:
Nos. 3,298,326; 3,272,158; 3,247,810; 3,172,374; 2,706,099;
1,934,389 and 1,736,170.
However, a pallet skid which may be readily formed with woodworking
tools yet is of substance sufficient to support substantial loads
has not heretofore been realized.
Accordingly, it is an object of the present invention to provide a
pallet skid which may be conveniently manufactured with customary
woodworking tools and used in combination as a longitudinal frame
member for a pallet or platform.
Another object of the present invention is to provide a pallet skid
which may be used to support a load spaced from and above a floor
that is relatively inexpensive to manufacture.
Still another object is to provide a pallet with sufficient
clearance between the floor and the platform to adapt it for
four-way use by both high and low fork-type lift trucks such that
it may be engaged from both ends and both sides by such lifting
vehicles.
Other objects and many of the attendant advantages of this
invention will be readily appreciated as will be better understood
by reference to the following detailed description when considered
in connection with the accompanying drawings in which like
reference numerals designate like parts throughout the figures and
wherein:
DETAILED DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a single pallet skid according to
the present invention.
FIG. 2 is a plan view of a sheet of material suitably notched for
forming into a pallet skid.
FIG. 3 is the sheet material of FIG. 2 partially folded before the
configuration of FIG. 1 results.
FIG. 4 shows two pallets according to the present invention resting
on top of each other.
FIG. 5 shows two pallets according to the present invention, the
top pallet being nested in the pallet underneath.
DETAILED DESCRIPTION OF THE INVENTION
In the preferred form of the invention, as illustrated in FIGS. 1
through 3, the pallet skid comprises a section of sheet material 10
having two sides, V-shaped grooves 12 and 14 defining parallel
channels spaced apart from each other and extending transversely
from one edge of the surface of the sheet material to the opposite
edge are in the upper surface of sheet material 10 and V-shaped
parallel channels or grooves 16 and 18 are formed in the opposite
surface of sheet material 10 also parallel to each other and spaced
intermittent channels or grooves 12 and 14. It will be understood
that the degree of angles of the channels 12, 14, 16 and 18 are
subject to wide variation depending upon the ultimate use of pallet
skid. For practical purposes, however, I have found that an angle
of the order of about 50.degree. is most suitable. Thus, calculated
from a line perpendicular through the sheet 10 an angle on either
side of the line 25.degree. is desirable. Of course, this is in no
matter limiting the novel aspects of the present invention, but
merely a preferred embodiment thereof.
FIG. 3 shows the sheet 10 partially folded and FIG. 1 shows sheet
10 folded such that the apices of V-shaped channels 12, 14, 16 and
18 are brought together and connected by a suitable means (not
shown) to define a recess-shaped section. As a connecting means
there may be used screws, nails, brads, staples, adhesives and the
like.
In order that the pallet skid base remain substantially parallel to
the floor the distance between channels 12 and 16 should be nearly
equal to that between channels 14 and 18. This distance is also
governed by another factor, namely the clearance that is desired
above the floor level required for the forks of the lift trucks.
Generally this is usually of the order of about 3 to 4 inches.
As the sheet material there may be used any robust substantial
material of uniform thickness. Although wood and wood products are
preferred, it is also possible to use metal and thermoplastic
materials such as impact polystyrene, 4-methylpentene-1, high
density polypropylene and other rigid thermoplastic substances.
Wood is the material of choice in that the platform portion of the
pallet is generally formed from wood and the woodworking tools are
in most instances available. For example, the V-shaped channels,
12, 14, 16 and 18 can be placed in the surface of the sheet
material in a direct manner as the workman is assembling the pallet
platform and thereby avoiding the necessity for special equipment
and techniques. The depths of grooves or channels 12, 14, 16 and 18
is subject to wide variation and depends, in part, upon the nature
and mechanical properties of the sheet material selected. It is
desirable that the channels be provided at a depth such that the
deepest point of the channel is near or substantial adjacent to the
opposite surface of the sheet material. In this manner the sheet
material may be deformed to define a recess opening while remaining
one integral piece of material. Of course it is also contemplated
that the channels may extend from the top surface of the sheet
material to the bottom surface resulting in several pieces which
must be held together in a jig or the like to be secured together.
Once the grooves or channels are placed in the sheet material it is
then conformed to a recess-shaped opening and fixed into position
by first securing the two edges of the channels together with a
suitable means, as for example an adhesive or staple, and then
attaching the pallet skid to the base of the platform.
It will be appreciated that in order to manufacture an acceptable
pallet it is necessary to have a plurality of pallet skids
supporting same. To this end, the present invention encompasses a
pallet platform comprising a plurality of transverse members and
longitudinal frame members attached thereto. Additional
longitudinal frame members are made according to the present
invention and include thereon at least two of the pallet support
members per longitudinal frame member. This will be more apparent
from FIG. 4 wherein longitudinal frame member 20 is securably
attached to transverse members 22, 24, 26 and 28. Also attached
therein are longitudinal frame members 30 and 32, each carrying two
pallet skids on the underside. These second longitudinal frame
members are also securably attached to the transverse members. The
pallet skids of the present invention may be used in combination
with a longitudinal frame member thereby providing additional
support for the platform above, securing the shaped pieces of sheet
material 10 to the underside of the platform and avoiding
"break-through" of separately attached pallet skids or spacers.
Also according to the present invention a plurality of the
platforms as previously described may be stacked one on the other
with the pallet skids of each superimposed platform in nested
relation to the platform below it, thereby permitting stacking and
nesting of the platforms in a relatively compact space and reducing
space requirements for storage of several of such platforms. As
shown in FIG. 5, another embodiment of the invention, the platforms
are provided with the recesses between the longitudinal frame
members such that the pallet skids of the lower platform receive
the legs of a superimposed platform in nested relation. This is
accomplished by leaving an opening or recess directly above the
skid members by not placing a longitudinal frame member directly
thereover. Again the angle of the channels 12, 14, 16 and 18 is
important that when the sides of the pallet skid are substantially
perpendicular to the platform, difficulty may be experienced when
two or more pallets are nested in that the nested pallet skids may
be difficult to disengage.
It should be understood, of course, that the foregoing disclosure
relates to only preferred embodiments of the present invention and
that numerous modifications or alterations may be made without
departing from the spirit and scope of the invention as set forth
in the appended claims.
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