U.S. patent application number 10/950197 was filed with the patent office on 2005-03-31 for work platform tool & material shelf.
Invention is credited to Waymire, Douglas E..
Application Number | 20050067361 10/950197 |
Document ID | / |
Family ID | 34381998 |
Filed Date | 2005-03-31 |
United States Patent
Application |
20050067361 |
Kind Code |
A1 |
Waymire, Douglas E. |
March 31, 2005 |
Work Platform tool & material shelf
Abstract
This is an auxiliary Tool and Material Shelf device for a use on
a work platform for mobile aerial lifts. Construction and
maintenance workers use the device to safely organize and position
their tools and materials on the work platform. The universal
configuration permits use with various sized aerial lifts and the
device supports heavier material and tool loads compared to other
prior art. The tool and material shelf/support device includes
various options such as various shelves and material supports to be
suitable for the differing needs of the user. The main components
are comprised of two universal "U" shaped interlock members that
fit over the platform guard rails; a vertical structural support
may be custom fitted or designed complete with an adjustable
locking device; and the trays and/or material supports to hold the
tools and materials.
Inventors: |
Waymire, Douglas E.;
(Anderson, IN) |
Correspondence
Address: |
John D. Ritchison
RITCHISON LAW OFFICES, PC
Suite A
115 East Ninth Street
Anderson
IN
46016-1509
US
|
Family ID: |
34381998 |
Appl. No.: |
10/950197 |
Filed: |
September 24, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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60506213 |
Sep 26, 2003 |
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60509133 |
Oct 6, 2003 |
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Current U.S.
Class: |
211/70.6 |
Current CPC
Class: |
B66F 11/04 20130101;
B25H 3/06 20130101 |
Class at
Publication: |
211/070.6 |
International
Class: |
A47F 007/00 |
Claims
I claim:
1. An universal auxiliary Tool and Material Shelf device for a use
on a work platform of mobile aerial lifts, comprising: (a) a top
universal "U" shaped interlock member that has an integral material
and tool support member and that fits over the highest platform
guard rail of the lift; (b) a bottom universal "U" shaped interlock
member that fits over the next highest platform guard rail of the
lift; (c) one or more vertical telescoping structural support posts
fastened to each of the "U" shaped interlock members; and (d) a
means for adjustably connecting the telescoping structural support
member whereby the device is securely and removably installable to
the guard rails of the aerial lift machines without tools.
2. The device according to claim 1 wherein the integral material
and tool support member is comprised of at least one angular
structural member that forms a "hook" wherein the member(s) contain
the material and tools.
3. The device according to claim 1 wherein the integral material
and tool support member is comprised of a tray wherein the tray
contains the material and tools.
4. The device according to claim 3 wherein the tray is a relatively
horizontal, flat surface with short sides around the entire
perimeter.
5. The device according to claim 3 wherein the tray is at a slight
incline and has at least one post attached wherein material spools
such as those used for electrical wire are laterally held in place
by the posts but the spools may be rotated to dispense the
wire.
6. The device according to claim 3 wherein the tray is a relatively
horizontal, flat surface with high sides around the entire
perimeter that form a deep rectangular container.
7. The device according to claim 3 wherein the tray is a relatively
horizontal, flat surface with medium sides around the entire
perimeter and separator panels to create sub-compartments in the
tray.
8. The device according to claim 1 in which the means for
adjustably connecting the telescoping structural support member
comprises: (a) a hand knob; (b) a threaded shaft connected to the
knob; (c) slotted apertures extending through the vertical
telescoping structural support posts; (d) an internally threaded
tee nut which connects to the threaded shaft on the knob side of
the posts and whose tee configuration is moveably engaged to the
slotted apertures; and (e) an internally threaded end nut which
connects to the threaded shaft on the side of the posts opposite
the tee nut wherein the threaded shaft engaged with the tee nut and
the end nut provide a clamping force to rigidly secure the
telescoping structural support members at a desired position.
9. The device according to claim 1 in which the means for
adjustably connecting the telescoping structural support member
comprises: (a) circular apertures extending through the vertical
telescoping structural support posts and (b) pins and cotter keys
wherein the pins engaged through the posts and are retained by the
cotter keys to provide a rigid position to secure the telescoping
structural support members at a desired position.
10. The device according to claim 1 wherein both universal "U"
shaped interlock members have a security system which comprises:
(a) circular apertures extending through the universal "U" shaped
interlock members and (b) pins and cotter keys wherein the pins
engaged through the "U" shaped interlock members and are retained
by the cotter keys to provide a rigid position to secure the "U"
shaped interlock members from tipping or moving under the weight of
materials or tools.
11. An auxiliary Tool and Material Shelf device for a use on a work
platform of mobile aerial lifts, comprising: (a) a top "U" shaped
interlock member that has a material and tool support member and
that fits over the highest platform guard rail of the lift; (b) a
bottom "U" shaped interlock member that fits over the next highest
platform guard rail of the lift; (c) one or more fixed vertical
structural support posts fastened to each of the "U" shaped
interlock members that is custom fitted to a specific sized work
platform; and (d) a means for securely connecting the structural
support member to a customized position whereby the device is
removably installable to the guard rails of the specific aerial
lift machines without tools.
12. The device according to claim 11 wherein the material and tool
support member is a flat tray, inclined tray with posts for
material, a deep tray, a deep tray with dividers for
sub-compartment, or one or more material "hooks".
13. An auxiliary Tool and Material Shelf device for a use on a work
platform of mobile aerial lifts, comprising: (a) a top "U" shaped
interlock member that has a removable connection system for the
material and tool support member and that fits over the highest
platform guard rail of the lift; (b) a bottom "U" shaped interlock
member that fits over the next highest platform guard rail of the
lift; (c) one or more adjustable vertical structural support posts
fastened to each of the "U" shaped interlock members; (d) a means
for securely connecting the structural support member to a
customized position; and (e) a connection system that permits
interchangeability of the various material and tool supports
whereby the device is removably installable to the guard rails of
the specific aerial lift machines without tools.
14. The device according to claim 13 wherein the material and tool
support member is a flat tray, inclined tray with posts for
material, a deep tray, a deep tray with dividers for
sub-compartment, or at least one material "hook".
15. The device according to claim 13 wherein the connection system
comprises: (a) angle gussets with button studs wherein the gussets
are rigidly fixed to the top "U" shaped interlock member and (b)
gussets with key hole slots on the material and tool support member
to removably connect to the button studs wherein the material and
tool support members may be interchanged for the needs of the
user.
16. The device according to claim 15 wherein the material and tool
support member is a flat tray, inclined tray with posts for
material, a deep tray, a deep tray with dividers for
sub-compartment, or at least one material "hook".
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of Provisional Patent
Application Ser. No. 60/506,213 filed Sep. 24, 2003 and 60/509,133
filed Oct. 6, 2003 by Douglas E Waymire of Anderson, Ind., U.S.A.,
and titled "TOOL AND MATERIAL SHELF (WITH REMOVABLE FEATURES) FOR
MOBILE WORK PLATFORMS".
FIELD OF INVENTION
[0002] The present invention relates generally to a Tool and
Material Shelf that a construction, maintenance or other personnel
may use to safely organize and position his tools and materials on
a work platform for mobile aerial lifts and other assist devices.
The Present Invention may be utilized either as a single shelf or
material "hook" support or may be used with other shelves (fixed or
removable) at the discretion and needs of the person. It includes
various options to be suitable for the differing needs of the
user.
[0003] The new shelf and material support device has features
built-in to make its use both functional and simple to operate. The
new device has various improvements that will be discussed
below.
FEDERALLY SPONSORED RESEARCH
[0004] Not Applicable.
SEQUENCE LISTING OR PROGRAM
[0005] Not Applicable.
BACKGROUND
[0006] Field of Invention
[0007] The new shelf and material support device described in this
specification is an auxiliary mechanism that is designed to easily
and quickly install on a standard mobile aerial lift machine. This
shelf and support augments the productivity of the user of the lift
machine and improves the safety of the operation during use.
[0008] A. Introduction of the Problems Addressed
[0009] Mobile aerial lift machines are normally supplied without a
tray or shelf that would be used for the purpose of holding
material/tools. However, the skilled trade or maintenance person
using the lift machine needs a tray or shelf to put his or her
materials and/or tools upon while performing a job or task. Without
a tray or shelf, the worker must lay the material and/or tools on
the floor of the lift or create a makeshift device to hold the
materials or tools. Workers have been known to rig and attach boxes
and other supports to the lifts in order to hold their
material/tools. These may be welded, bolted, or screwed to the
railing of the lift. Although these boxes or supports are used,
they are not commercially available.
[0010] B. Prior Art
[0011] Historically, the prior art devices were often used for
ladders, scaffolds of limited mobility, or fixed tool benches.
Often these were light gauge devices or devices designed for
specific machines of one manufacturer. The new shelf and material
support device addresses these limitations and provides a solution
to the stated problems.
[0012] Examples of prior auxiliary mechanisms for material and tool
organization begin with U.S. Pat. No. 3,252,614 issued to Evans
(1966). This teaches a way to attach a material or tool bin over a
thin band of a metal strap. The device is stated to be stackable
for storage but does not teach any use with mobile lift machines.
It implies use for manufacturing parts and the like. Another
improvement for material and tool support was issued to Benolkin as
a U.S. Pat. No. 3,998,416 (1976). It teaches a flexible strap with
a key hole and button connection means. It is used only with a
ladder and is limited in size and use, mainly as a means to hold a
paint can and tools for painting. Although easily installed, this
device adds no additional capacity for a large load of tools or
materials as the present invention.
[0013] Other examples include a U.S. Pat. No. 4,480,810 issued to
Hall (1984) which teaches a ladder caddy clamped to the rung of a
ladder. It holds tools and materials, but does not have the large
capacity of the new shelf device. A U.S. Pat. No. 4,462,243 issued
to Richards (1984) teaches a specific, complex tool holder that is
held in place by means of a button stud on one structure and a key
hole aperture on the adjacent structure. The means to secure does
not teach use on mobile platforms or general tool or material
supports.
[0014] A U.S. Pat. No. 4,646,877 issued to Whan (1985) teaches an
angle iron strut supporting a material holder on a scaffold. It
does not show multiple type material and tool holding bins nor
discuss use with a mobile aerial lift. It does not suggest the
U-shaped interlock of the present invention. U.S. Pat. No.
4,715,474 was issued to Wehmeyer (1987) that teaches an
interconnect system for round members of a scaffold. It teaches a
clamping system for a restricted cross-section of support member
and is not flexible and versatile like the present invention.
[0015] A support table for a scaffold is taught in U.S. Pat. No.
5,158,023 issued to Allen (1992). This device uses a U-interlock on
the top rail and an angle strut to the floor of the platform. It
does not teach general tool and/or material support or versatility
for various cross-sections of guard rails. A U.S. Pat. No.
5,481,988 issued to Dess (1996) was focused at extension platforms
for fork trucks and the like. It taught telescoping structures for
the work platform and guard rails but does not teach tool or
material support features.
[0016] The U.S. Pat. No. 5,878,838 issued to Lapp (1999) teaches a
hook support for a scaffold guard rail and angle struts supporting
the platform. It does not discuss using either to support tools or
materials.
[0017] A tray or shelf for scissors lifts and aerial lift are
taught in U.S. Pat. No. 6,095,057 issued to Corban (2000) and in
publications on the internet at skycaddy.com for J. C. Engineering.
This device is a stamped or cast device that is light gauge in
nature for light loads of tools or materials. It teaches one
retaining pin on only one guard rail which permits potential
tipping of any loads. It requires special custom designs for the
various cross-section and sizes of guard rails that vary from
manufacturer to manufacturer. It only teaches trays that are under
the guard rail plane which is not adequate for certain skilled
trades. It does not teach material hooks for pie and conduit, or
the like, nor inclined tables for wire distribution. The claims are
very narrow and limited. The publication related to this patent is
likewise limited in versatility. Each cross-section of guard rail
requires a special design and lacks versatility and scope for the
aerial lift industry.
[0018] Other prior art does not suggest or disclose the same
features, capabilities, and improvements in combination of the
present invention.
SUMMARY OF THE INVENTION
[0019] The new invention is a Tool and Material Shelf or Support
system. The configuration permits use with various sized aerial
lifts and supports heavier material and tool loads compared to
other prior art. The device has several features built in that will
be described below. These features permit the device to be light
enough for one person to handle yet sturdy enough to take the
weight and abuse in the work environment. It is designed and
configured to permit a construction and maintenance worker to
safely organize and transport his tools and materials when using a
mobile aerial lift device and its work platform.
[0020] The main components of this invention are comprised of two
universal "U" shaped interlock members that fit over the platform
guard rails; a vertical telescoping structural support posts may be
custom fitted or designed complete with an adjustable locking
device; and various trays, material supports and/or container
devices (all of which may be fixed or removable) to hold the tools
and materials. The preferred embodiment and alternative embodiments
are shown is the accompanying drawings and pictures.
[0021] The materials comprising the new shelf and material support
device are standard and available from many sources. The materials
for the various trays and accessories are primarily the same as
utilized in standard tool holders and material containers commonly
used for work at ground level. The interlock members may be
different types of sheet, structural, cast or molded materials as
discussed below. The vertical support posts can be various types of
materials configured in a tubular cross section that permits
telescoping for length adjustments while maintaining the strength
of a closed structural member. This is discussed further, below.
One skilled in the art can appreciate that many variation of
materials and configurations for the tool and material support may
be used to permit the scope and spirit of this invention as
described below and as depicted in the accompanying drawings.
OBJECTS AND ADVANTAGES
[0022] Accordingly, there are several objects and advantages of the
new shelf and material support device described in this
specification. There currently exist some mechanisms for ladders
and scaffolds and devices that are made specifically for one type
of aerial lift. This new shelf and material support device provides
an improvement because it is designed to be used with a wide
variety of the most common aerial lift with various trays and bins
for materials and tools in commercial and industrial settings.
[0023] One advantage of this device over others in the field is
that it is universally adaptable to different sizes and shapes of
mobile aerial lift machines. The adjustable vertical support posts
and the safety locking pins provide a secure attachment to the
various sized work platforms. While an alternative embodiment may
be custom built to an exact dimensioned platform, the preferred
embodiment crosses virtually all makes and models of machines. This
results in less proliferation to fit most machines and eliminates
the need to buy specially designed units for only one type of lift
machine.
[0024] Another advantage is its versatility. The basic unit may be
adapted with different trays and material containment options to
permit the different needs of the trades person in construction and
maintenance. The design is configured to be adaptable for differing
materials and tools. In addition, the trays may be attached and
fixed directly to the U-shaped members or, as an alternative
embodiment, they may be attached by means of a removable connection
system so various trays may be readily interchanged.
[0025] Another advantage is its simple and inexpensive design.
Because it uses the same materials as other equipment and tools
systems in the construction and maintenance industry, a
manufacturer may leverage his material-buying power with a higher
volume. Also, the processes to manufacture all the parts for the
invention are well known in the industry.
[0026] A further advantage is its support of safety in the
workplace. The device permits the materials and tools to be well
organized and contained. The work surface where the tradesman
stands will be free of materials and tools and permit him to safely
support himself by not standing or tripping on misplaced objects.
Likewise, the containment of the objects will lessen the chance for
the objects to be unknowingly kicked or bumped to passers-by,
below.
[0027] An important advantage is the added strength of a device
with this configuration. The dual interlocks, the additional safety
lock pins, and the vertical support posts are designed to jointly
provide a much stronger support system that is on the market,
today.
[0028] Another advantage is the device improves ergonomics and
accessibility. The invention permits a tradesman easier access to
the tools and materials. Most will now be at waist level and within
arms length. Importantly, the need to stoop down and remove ones
eyes from the work is also reduced significantly.
[0029] Another advantage is that the reduced bending and reaching
saves time. More of a person's time is used in doing the skilled
task rather than retrieving or moving materials and tools during
the operation. Hence, the improved efficiency saves the worker
effort and increases the productivity of the operation.
[0030] Finally, other advantages and additional features of the
present invention will be more apparent from the accompanying
drawings and from the full description of the invention. For one
skilled in the art of tool and material placement for work
platforms, such as described here, it is readily understood that
the features shown in the examples with this invention are readily
adapted to other types of similar devices in the industry.
DESCRIPTION OF THE DRAWINGS
[0031] The accompanying drawings, which are incorporated in and
constitute a part of this specification, illustrate an embodiment
of the present invention that is preferred. The drawings together
with the summary description given above and a detailed description
given below serve to explain the principles of the invention. It is
understood, however, that the invention is not limited to the
precise arrangements and instrumentalities shown.
[0032] FIG. 1 is a PERSPECTIVE View of the preferred embodiment of
the adjustable support for the Tool and Material shelf for mobile
work platforms.
[0033] FIG. 2 is a series of perspective views of various types of
lift machines with which the Tool and Material shelf is
utilized.
[0034] FIG. 3 shows a Sketch of a typical WORK PLATFORM on a Lift
machine.
[0035] FIG. 4 shows a variety of typical Guard Rail cross sections
used with Work Platforms.
[0036] FIG. 5 shows a series of drawings from different views that
help demonstrate the tool and material shelf in a Universal
(Flexible) Embodiment.
[0037] FIG. 6 shows details of an example of a locking device for
the UNIVERSAL EMBODIMENT.
[0038] FIG. 7 shows an isometric assembly of the tool and material
shelf in a Universal (Flexible) Embodiment.
[0039] FIG. 8 shows details of an example of a tray utilized with
the tool and material shelf in a Universal (Flexible)
Embodiment.
[0040] FIG. 9 shows details of various examples of types of top
trays that may be utilized with the tool and material shelf in a
Universal (Flexible) Embodiment.
[0041] FIG. 10 shows details of examples of types of material
holding devices that may be utilized with the tool and material
shelf in a Universal (Flexible) Embodiment.
[0042] FIG. 11 shows material holding devices similar to FIG. 10 on
a Custom-made, fixed device as an Alternative Embodiment.
[0043] FIG. 12 shows material holding device similar to FIGS. 10
and 11 on a Pinned device as an Alternative Embodiment.
[0044] FIG. 13 shows an Alternative Embodiment for attaching the
trays in a removable manner.
[0045] FIG. 14 shows the Alternative Embodiment in FIG. 13 used
with various examples of different trays.
DESCRIPTION OF THE DRAWINGS--REFERENCE NUMERALS
[0046] The following list refers to the drawings:
[0047] 21 universal, flexible embodiments
[0048] 22 top/higher U-interlock member
[0049] 23 bottom/lower U-interlock member
[0050] 24 higher vertical structural support post
[0051] 24a lower vertical structural support post
[0052] 25 material hook (optional)
[0053] 26 generally the adjustable locking device
[0054] 27 pin aperture
[0055] 28 lock pins and cotter keys
[0056] 29 threaded fastener
[0057] 30 tee nut for slot
[0058] 31 end nut
[0059] 32 elongated apertures (slots)
[0060] 33 hand wheel/knob
[0061] 34 flat tray
[0062] 35 support gussets
[0063] 35a support gussets
[0064] 36 inclined tray
[0065] 37 posts
[0066] 38 deep tray for material and/or tools
[0067] 39 tool box
[0068] 40 divided container
[0069] 41 adjustable single material support
[0070] 42 adjustable double material support system
[0071] 43 fixed single material support
[0072] 44 fixed double material support
[0073] 45 pinned material support
[0074] 46 removable connection system/means
[0075] 47 vertical base angle gusset with button connector
[0076] 47a horizontal base angle gusset with button connector
[0077] 48 button studs
[0078] 49 shelf gussets
[0079] 50 key slots
[0080] 51 tray position indicator line
[0081] 226 scissors lift machine
[0082] 227 articulated lift machine
[0083] 228 lift machine with boom basket
[0084] 312 general work platform
[0085] 413 work platform guard rails.
DETAILED DESCRIPTION OF PERFERRED EMBODIMENT
[0086] The present invention is a tool and material shelf and
support system for mobile aerial lift machines. The main components
of this invention are comprised of two universal "U" shaped
interlock members that fit over the platform guard rails; a
vertical structural support posts may be custom fitted or designed
complete with an adjustable locking device; and various trays,
material supports and/or container devices (all of which may be
fixed or removable) to hold the tools and materials.
[0087] The materials comprising the device are standard and
available from many sources. The two universal "U" shaped interlock
members can be made from various types of sheet product. The gauges
can vary from three eighths inch (3/8), quarter inch (1/4), one
eighth inch (1/8), 10 gauge, or the like of various steels and
other metals that may be readily formed into the "U Shaped"
configuration. In addition, structural or cast plates may be used
if needing high strengths for very heavy material supports (such as
heavy pipe and the like). Finally, fiberglass and other various
plastics or compound materials may be molded into the shape as long
as appropriate testing has insured enough strength for the
application.
[0088] The vertical structural support posts can likewise be
comprised of various metals, plastics and the like. The preferred
embodiment shows a closed tubular member. One skilled in the art
understands that the tube may be square, rectangular, circular or
the like. One skilled also knows that other structural cross
sections may be used as long as the compressive strength is
maintained and the universally adjustable length connector shown in
the drawings is properly fitted to a different configuration.
[0089] The various trays and material support components are made
of light gauge metals, plastics and the like. The material "hooks"
may require tubular or structural members of heavier gauged metals
and composite materials.
[0090] The entire device is fastened together by welding, bolting,
riveting or the like. Threaded fasteners seem the best for the
locking device but one skilled in the art appreciates other means
to accomplish the spirit of this invention. Simple pins and cotter
keys, or the like, may be used to attach the U members to the lift
guard rails. Obviously, metal sheet members may be bent and formed
by a power press or brake. Plastics and composite alternatives
would be molded or cast to the proper configuration. Depending on
the materials used, secondary drilling operations may be required
for some of the design configuration such as the lock pin
apertures, etc.
[0091] A person having ordinary skill in the field of this
invention appreciates the various materials and component parts
that may be used to physically permit this invention to be produced
and utilized. The improvements over the existing art are providing
a device that:
[0092] is universally adapted for the various makes and models of
mobile aerial lift machines;
[0093] is versatile;
[0094] is a simple and inexpensive design;
[0095] supports safety in the workplace;
[0096] is stronger than other designs;
[0097] supports ergonomics and accessibility; and, saves time and
increases productivity.
[0098] In the drawings and illustrations, note well that the FIGS.
1-14 demonstrate the general condition of a tool and material shelf
and support for mobile aerial lift machines. The manner of the
device described is functionally understood by those skilled in the
art to be appropriate for tool and material support. One skilled in
the art readily appreciates that tool and material devices shown
here are exemplary and not limiting in their nature.
[0099] FIG. 1 is a PERSPECTIVE View of the preferred embodiment of
the adjustable support for the Tool and Material shelf for mobile
work platforms. This is the Universal (flexible) embodiment 21 that
may adjust to various lifts and work platforms from various
manufacturers.
[0100] FIG. 2 is a series of perspective views of various types of
lift machines with which the Tool and Material shelf is utilized.
FIG. 2A is a PERSPECTIVE View of a mobile aerial lift machine that
is commonly called a scissors lift 226. Next, shown as FIG. 2B is
another mobile aerial lift machine, an articulated lift 227. In
FIG. 2C an articulated lift machine is combined with a boom basket
228. All three pictures are to demonstrate the wide variation of
work platforms and the need for a universal shelf device as the
Present invention.
[0101] FIG. 3 shows a sketch of a typical work platform 312. Note
that the width w and the height h vary between manufactures,
between types of lifts, and between specific sizes or models.
[0102] FIG. 4 shows a variety of typical Guard Rail cross sections
413 used with a Work Platform 312. FIG. 4A shows a typical, nearly
square small tube with a height "a" and a width "d". FIG. 4B shows
a larger rectangular tube with a height "c" and a width "e". FIG.
4C shows a structural member, here an angle iron, with a height "c"
and a width "f". The final example in FIG. 4D is an elliptical
tube, here a circle, with a height "c" and a width "g". Note there
is a plethora of cross sections in the work environment, hence the
need for a universal device such as the present invention.
[0103] FIG. 5 shows a series of drawings from different views that
help demonstrate the tool and material shelf in a Universal
(Flexible) Embodiment 21.
[0104] FIG. 5A shows an Isometric of the tool and material shelf in
a Universal (Flexible) Embodiment 21. The top universal PICTURE of
an "U" shaped interlock member 22 and the bottom "U" shaped
interlock member 23 both have pin apertures 27 for the locking pins
28 (described below). Each member 22 and 23 are fastened by some
means such as welding, rivets, threaded fasteners or the like to
the vertical structural support posts 24 and 24a. The two posts 24
and 24a "telescope" into each other (one support slides within the
other) and the two supports 24 and 24a are held in place by the
adjustable locking device 26. The material "hook" portion 25 of the
vertical support post is optional.
[0105] FIG. 5B shows the Front view of the invention 21. The two
interlock members 22 and 23 are fastened to the vertical structural
support posts 24 and 24a. The supports are held rigid by the
adjustable locking device 26.
[0106] FIG. 5C shows a top view of the UNIVERSAL EMBODIMENT 21 with
the same parts, including the material hook 25.
[0107] FIG. 5D provides a side view with the UNIVERSAL EMBODIMENT
21 being placed over the lift platform guard rails 413 and held by
the lock pins and cotter key 28, or the like.
[0108] FIG. 6 shows details of an example of a locking device 26
for the UNIVERSAL EMBODIMENT 21.
[0109] FIG. 6A shows a front view of the locking device 26
juxtaposed on the vertical support posts 24 and 24a. Here the
threaded fastener 29 (with a hand knob) is fitted through aperture
32 in the vertical support posts 24 and 24a. The clamping is
accomplished by means of a "tee" nut fastener 30 and an end nut 31.
FIG. 6B is a section demonstrating the apertures 32. FIG. 6C is an
exploded view of the "tee" nut fastener 30. FIG. 6D is a side view
showing the fastener 29 and the hand knob 33 engaged with the
vertical support posts 24 and 24a.
[0110] FIG. 7 shows an isometric assembly of the tool and material
shelf in a Universal (Flexible) Embodiment 21. The various elements
are indicated and have been described above.
[0111] FIG. 8 shows details of an example of a tray 34 utilized
with the tool and material shelf in a Universal (Flexible)
Embodiment 21. FIG. 8A shows a drawing of a flat tray 34. The tray
34 is supported by two gussets 35 which are attached by a fastening
means, such as welding, to the top universal "U" shaped interlock
member 22. The remaining parts shown have already been described,
above.
[0112] FIG. 8B is a top view of the flat tray 34 with the hidden
gussets 35. FIG. 8C shows the front view if the entire tray system.
FIG. 8D shows the side view of the entire tray system. Note the
presence of the gussets 35 does not preclude the use of the
optional material "hook" 25. However, the presence of the gussets
provides substantial strength over prior art designs. In this side
view, the guardrail 413 of the work platform is also shown as well
as the securing pins and cotter keys 28.
[0113] FIG. 9 shows details of various examples of types of top
trays (numbered below) that may be utilized with the tool and
material shelf in a Universal (Flexible) Embodiment 21.
[0114] FIGS. 9A through 9E repeats the description in FIG. 8 of the
flat tray 34 for reference. FIGS. 9F, 9G, 9H, 91 and 9J show a
different type of material support. Here, the tray 36 is somewhat
inclined. Fastened to the tray 36 is a plurality of posts 37 (the
example here is six 6). The material posts 37 may be welded,
bolted, or the like to the inclined tray 36. Once in place, the
posts 37 may support various types of materials, such, as but not
limited to, wire spools and the like.
[0115] FIG. 9J includes the side view of the inclined tray 36 and
the posts 37. Note also the gusset 35a may be somewhat different
from the gusset 35 used with the flat tray 34 described above to
account for the inclined tray 36 configuration. The interlock
member 22 and the pin and cotter key 28 are still connected over
the guardrail 413.
[0116] FIG. 9K shows a deeper material or tool tray 38. FIG. 9L
shows a larger "tool box" 39 that may be used. FIG. 9M shows a
divided container 40 that may be provided for separation of several
materials on the work platform.
[0117] FIG. 10 shows details of examples of types of material
holding devices 41 and 25 that may be utilized with the tool and
material shelf in a Universal (Flexible) Embodiment 21. FIG. 10A
shows a sketch of the invention with one material holder 41. FIG.
10B shows a double holder system 42 that includes a material holder
25 on the higher interconnect 22 and a material holder 41 on the
lower interconnect 23.
[0118] FIG. 11 shows material holding devices 43 and 44 similar to
the one in FIG. 10 on a Custom-made, fixed device as an Alternative
Embodiment. FIG. 11A shows a sketch of the invention with one
single material holder 43. FIG. 11B shows a double holder 44. One
skilled in the art realizes a plurality of holders of various
shapes and sizes is possible. One also notes the major difference
here is that the main body has been custom fitted to a specific
guardrail and does not incorporate the Universal (Flexible) Feature
described in the Preferred Embodiment, above.
[0119] FIG. 12 shows material holding device 45 similar to the ones
in FIGS. 10 and 11. Here the connection is strictly a Pinned device
as an Alternative Embodiment 45 and incorporates the fastening of
the vertical support post 24 utilizing multiple lock pins and
cotter keys 28. This is not the preferred way since this embodiment
limits some of the vertical flexibility and adjustability of the
device. It may be quicker to set-up with a custom-made lift machine
and may be appropriate for some specific applications.
[0120] FIG. 13 shows a secure Alternative Embodiment for attaching
the trays in a quickly removable manner. This is an assembly sketch
similar to the one in FIG. 8, above, and includes the Isometric
view FIG. 13A; Top view FIG. 13B; Front view (above rail line 51)
FIG. 13C; the Side view (of above rail line 51) FIG. 13D; the Front
view (below rail line 51) FIG. 13E; and the Side view (below rail
line 51) FIG. 13F.
[0121] In this Alternative Embodiment the attachment of trays, such
as the flat tray 34 or inclined tray 36 (or others such as shown
above) is by means of a removable connection system 46 as shown in
FIG. 13H and other accompanying drawings. The U-interlock member 22
has a plurality of angle gussets 47 [shown here as an example of
two (2)] that are permanently attached to the member 22 by means of
welding, riveting, or the like. If the member 22 is made of a cast
or molded material, the angle gusset 47 could be similarly cast or
molded integrally to the member 22 or could be fastened as a
secondary operation to member 22 by threaded fasteners, pins,
rivets, adhesives, friction welds or other heat processes.
Integrally fastened to each angle gusset 47 are two "button" studs
48. These studs 48 may also be integrally cast or molded to the
angle gusset 47 if the angle gusset 47 is similarly manufactured or
attached by a secondary operation. The button studs 48 may be of
various shapes as long as the expanded "top" portion is larger than
the key slots 50 discussed below.
[0122] Each of the trays such as the flat tray 34, the inclined
tray 36 or the like has a plurality of gussets 49 and 49a [shown
here as an example of two (2)] similarly attached to the tray 34 or
inclined tray 36, or the like. These gussets 49 and 49a have two
key slots 50 that are apertures through the tray gussets 49. The
whole assembly is shown in side views FIGS. 13D and 13F. The
individual parts that make up the removable system are shown in
FIGS. 13G and 13H. Note that in FIG. 13G, the gussets 49a extend
further horizontally under the flat tray 34 and in FIG. 13H the
gussets 49 extend further vertically along member 22. As one
skilled in the art appreciates, either system may be designed to
carry the weight of the flat tray 34 and its contents. FIG. 13H is
more compact to the rail system and is the preferred removable
system 46.
[0123] In FIGS. 13E and F, the alternative is shown for positioning
the flat tray 34 at or below the top (shown by line 51) of member
22. This may be desirable for some trades to keep the guard rail
413 free of any material.
[0124] FIG. 14 shows the Alternative Embodiment in FIG. 13 used
with various examples of different trays. In this series of views,
the trays 34 and 36, material bins 38 and 40, and tool boxes 38 and
39 shown above in FIGS. 8 and 9 permanently attached to member 22
are now depicted with the removable fastening system 46. As one
well skilled in the art appreciates, all the trays, bins, tool
boxes and the like are shown as examples of typical tool and
material holding devices.
[0125] In total, all the points and details mentioned here
throughout this detailed description of the drawings are exemplary
and not limiting. Other components specific to describing a tool
and material shelf or support device may be added as a person
having ordinary skill in the field of this invention well
appreciates. The drawing and components have been focused on the
parts shown in respect to the present invention.
OPERATION OF THE PREFERRED EMBODIMENT
[0126] The tool and material shelf as the universal, flexible
embodiment 21 has been described above. The manner of how the
embodiment 21 operates is described below. Note well that the
description above and the operation described here must be taken
together to fully illustrate the concept of the present
invention.
[0127] The embodiment described above is a tool and material shelf
or support device 21, for use with a mobile aerial lift machine.
The device 21 is simply fitted over the work platform guardrails
413 of the mobile aerial machine. As described in the preferred
embodiment. The vertical support post 24 and 24a are adjustably
connected in length. The members 24 and 24a telescope within
themselves and are set to the appropriate size for the specific
machine. (See FIGS. 2, 3, and 4 to recall the variation in the
industry.) Then, supports 24 and 24a are rigidly fastened and held
in place by the adjustable locking mechanism 26. Finally, the "U"
shaped interlocked members 22 and 23 are safely secured by placing
pin and cotter keys 28 through the apertures 27 of the members 22
and 23.
[0128] The multiple pins 28 and the lower support 24a at the lower
guard rail 413 permits the universal embodiment 21 to be utilized
with various cross sections as shown in FIG. 4, above. These
features also prevent "tipping" of the tray 34 and, along with the
gussets 35, permit the tray 34 to support heavier tools and
materials than shown in any prior art embodiments.
[0129] Several optional trays and material holders
34,36,38,39,40,41, and 25 were demonstrated in the FIGS. 8, 9 and
10 for the Universal embodiment 21. These are exemplary to what may
be provided and should not limit the spirit and scope of this
invention.
[0130] Alternative Embodiments were also shown. In FIG. 11,
material holders for custom built devices 43 and 44 and in FIG. 12
a pinned device 45 would not require the locking device 26 but
would be limited as to fixed vertical positions and sizes. In FIGS.
13 and 14, a removable system 46 is depicted to provide a means to
interchange the various tray and holding devices shown throughout
the drawings 34, 38, 39, 40 and the like. The removable system is
simply utilized by aligning the button studs 48 on the angle
gussets 47 of the U-interlock member 22 with the key slots 50 of
the tray gussets 49. Then one slides the tray down to interlock the
buttons 48 in the narrow slot of the key slots 50.
[0131] The tool and material shelf/support device as the present
invention has been described above in connection with what is
presently considered to be the most practical and preferred
embodiment. With these descriptions it is to be understood that the
tool and material shelf/support device is not to be limited to the
disclosed embodiment. On the contrary, the tool and material
shelf/support device is intended to cover various modifications and
equivalent arrangements included within the spirit and scope of the
description.
* * * * *