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Патент USA US3055486

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Sept. 25‘, 1962
J. w‘. "PASTORIUS
3,055,477
FOLDING ‘PLATFORM
{Filed NOV. 50,, 1.960
3 Sheets-Sheet 1
iw‘mals
INVENTOR
JAMES W. PASTORIUS
AT TYS .
Sept. 25, 1962
J. w. PASTORiUS
3,055,477
FOLDING PLATFORM
Filed Nov. 30, 1960
3 Sheets—Sheet 2
E g.\
'
_
:INV sm-on .
JAMES w. PASTQRIUS
‘
ATTYS
sePt- 25, 1962
PASTO-RI-USS
E'QEDING PLATFORM
Filed Nov. 30,, 19.601
Sheets-Sheet 3.‘
4
IlLIL
AT T vs.
United States. Patent O?ice
1
2
3,055,477
the inner and outer frames are in parallel contact with
FOLDING PLATFORM
the legged supporting members. The parallel frames are
James W. Pastorius, 335 Main St., Cementon, Pa.
then rotated inward until they rest on inclined sup
Filed Nov. 30, 1960, Ser. N . 72,740
ports located on the bracing member. The outer legs
12 Claims. (Cl. 193-4)
fold out of the way under the U-frame. The entire
device may be lifted back up against the conveyor by
The present invention relates generally to portable
use of a chain or other lifting means, the platform ro
folding platforms and more speci?cally to a novel fold
tating on the U-member pivot.
ing platform adapted for use in conjunction with the dis
'
Additional objects and advantages of the invention
charge end of a mobile conveyor to raise workers han
A
3,055,477
Patented Sept. 25, 1962
will be more readily apparent from the following detailed
dling conveyed materials to a height at which they may
discussion of an embodiment thereof when taken together
more easily transfer the materials onto high-level stacks.
with the accompanying drawings in which:
A ?rst object of the invention is to provide a folding
FIG. 1 is a side elevational view of -a folding platform
platform which‘ in an open position extends laterally
in accordance with the invention indicating a platform
outwardly from both sides of the discharged end of a 15 attached to a portable conveyor base member in use in
mobile conveyor and which in a closed position folds
an unfolded position;
substantially into space beneath a mobile conveyor end.
FIG. 2 is a front elevational view of a platform in an
Another object of the invention is to provide a folding
unfolded position showing also the folded platform po
platform which in a closed position is folded into the
sition;
space beneath a mobile conveyor end in such a manner 20
FIG. 3 is a fragmentary plan view of an unfolded plat
as to permit substantially unhindered access to the con
form taken along line 3-~3 of FIG. 1;
veyor end from any direction and allow normal working
FIG. 4 is a fragmentary view, partly in section, of the
activity in the area occupied by the platform when in an
central supporting component of a platform taken along
open position.
’
line ‘4-4 of FIG. 3;
A further object of the invention is to provide a folding 25 FIG. 5 is an enlarged fragmentary view of the inner
platform which may be permanently attached to, and
and outer platform hinged connection;
partially, supported by, the discharge end of a portable
FIG. 6 is a view partly in section along the line -6--6
of FIG. 5;
7
conveyor so that it will be at all times ready and easily
“set up for use.
'
;FIG. 7 is a perspective view of a leg hinge-member
An additional object is to provide a folding platform 30
partially supported by a mobile conveyor and additionally
with attached legs;
a
> '
FIG. ‘8 is a sectional view taken along line v8--8 of
supported by wheels or other self-contained means per
FIG. 5;
mitting corresponding and non-interfering travel of the
folded platform with the conveyor end during relocation
‘partly folded position; and
FIG. 9 is a View as in FIG. 8 showing the platform in ‘a
of the conveyor.
.
~ FIG. ‘10 is a view as in FIG. 8 showing the platform
Another object is to provide a folding platform which
frames in ‘a fully folded parallel position.
Y
.
>
-
Referring to the drawings, FIG. 1 illustrates the in
Ivention in operation attached to a mobile conveyor ‘10.
is pivotally mounted to a mobile conveyor in such a man
ner that during periods of non-use it may be raised and
The conveyed materials, in this instance in bags 12,
‘solely supported in the folded position by the conveyor
40 travel along the conveyor apron 14-and are-deposited 'on
‘thus increasing the maneuvrability of the conveyor.
an adjustable contoured slide 16, the specially developed
A still further object vof the invention is to, provide a
shape of which is shown in FIG. 2. Packers manually
‘folding platform of the type described which may be
easily and .quickly folded or unfolded by 'one man, thus
‘permitting intermittent use of the device for stacking ma
terial at a high level.
.
The invention brie?y includes a U-shaped frame mem
(ber pivotally supported along the bottom of the U by a
conveyor base member such that the U-member open end
extends in the direction of conveyor travel. This mem
_ber may be rotated in a vertical plane and extends to a
position approximately beneath the end of a trough
shaped slide attached to the end of the conveyor. Across
‘the open end of the U-member is a bracing member from
which axle supporting members, axle, andrwheels extend
downwardly. Hingedly mounted along eachside of the
U-member and extending outwardly therefrom are rec
transfer the articles from the slide onto pallets for
mechanical bulk handling as shown in FIG. 1.
a
45
The invention includes a U-shaped frame member 18
constructed of cylindrical stock such as steel pipe which
is hingedly mounted to a conveyor base member 20 as
shown in FIGS. 1 and~3 by hinging means 22. The
open end of the U-frame 18 faces in the direction of
50 conveyor travel and extends to a position approximately
beneath the end of the conveyor slide 16.
Extending across the open end of the 'U-frame ‘near
,the mouth‘of the U is a main bracing member 24 which
is of beam-type construction including an upper plate
55
26 having spaced stiffening angles 28 integrally secured
. to the underside thereof as indicated in section in FIG. 4.
,The ends of the main bracing-member are attached ‘to
'tangul'ar shaped decked inner platform frames. The
"hollow parallel cylindrical sleeves 30 which are slidably
‘outer edges of these platform frames are hingedly at~
tached to legged supporting members and are eccentrically 60 located along the U-frame and permanently positioned
,thereon by bolts 32 passing through the sleeves and
hingedly connected to outer decked platform frames each
U-frame. Axle supports 34 protruding beneath the main
having supporting legs along the edge opposite the
bracing member are disposed between the spaced angles
hinged edge. Thus there is a sectional platform extending
28 and extend downward providing supporting means for
perpendicularly out from each side of the conveyor end
‘of appropriate height to allow workers standing‘ thereon 65 axles 36 on which wheels 38 are rotatably mounted.
FIGS. 2 and .4 clearly show the Wheel mounting
to transfer heavy items from the conveyor and stack
‘them at high levels more ef?ciently than otherwise pos
Spacing sleeves 40 and 42 are also slidably located on
sible. The slide onto which the items are discharged
p the U-frame 18 on either side of the main bracing mem
‘has a specially designed concave shape to aid in con
‘ber sleeves 30. The spacing sleeves are held in place
trolling conveyor ?ow.
70. by inner platform frame pivotal sleeves 44 and position
To fold the platform the inner platform frames are
the pivotal sleeves 44 on the U-frame relative to the
‘rotated upward, and the outer frames downward, until
main bracing member sleeves 30 which are bolted in
arrangement.
a
a
.
3,055,477
-
3
place. :Flanged plugs 46 on the U-frame tips help se
cure the sleeves in addition to adding a ?nished appear
ance to the frame.
Rectangular tubular inner platform frames 48 are at
tached to the inner platform frame pivotal sleeves 44 by
frame extensions 50 which are welded or otherwise per
manently connected to the sleeves.
The outer ends 52
of the inner platform frames include several hinge ?ngers
54 as shown in FIGS. 3, 5, 6, and 9.
These ?ngers
intermesh with similar hinge ?ngers 56 of parallel ad
‘joining outer platform frames 58. Leg hinge members
60 are interposed between the inner and outer platform
frames, concavely grooved portions 62 of which coact
with the convex edge of the cylindrical platform frames
Referring again to FIG. 1, when the desired number
of the articles have been stacked, the conveyor 10 must
be moved back away from the stack to permit another
pallet to be loaded. To accomplish this, the platform is
folded so as to be supported solely by the wheels 38
and the conveyor base, permitting the platform to be
rolled back with the conveyor. The sequence of folding
the platform is best understood with reference to FIGS.
8, 9, and 10, which indicate the manner in which the
inner and outer platform frames are folded against the
leg hinge member 60 and legs 68 by pivoting on the ec
centrically located hinge pins 64. FIG. 10 shows that
the inner and outer frames fold into a compact parallel
position along the legs 68.
The ?nal folded position of the platform is shown by
48 and 58 to rigidly lock said frames and hinge member 15 FIG. 2 in broken lines indicating the manner in which
and to provide smooth hinge joints between the inner
the folded platform frames are pivoted on the sleeves 44
and outer platform frames when in an unfolded position.
and inwardly inclined to rest on the inclined supports
Hinge pins 64 are inserted into aligned holes in the hinge
78. This position brings the legs 70 up under the
‘?ngers 54, 56, and in the leg hinge members 60‘, and
U-frame 18 effectively removing them from the work
are maintained therein by set screws 66 in the leg hinge 20 area adjacent the conveyor end. The platform can be
The
hinge
pins
64
act
members as shown in FIG. 6.
folded into this position by one man without appreciable
as pivoting means for relatively rotating the inner and
effort.
outer platform frames and are located below the plat
With the platform in the compact folded position, the
‘form frame level to provide an eccentric hinge, the func
can be rolled back and the platform will roll
tional advantage of which will be explained with the 25 conveyor
along
with
it. The vehicle on which the material is being
operation of the device. Legs 68 connect the aligned
stacked can also be moved. The packers may then begin
portions of the leg hinge members 60 as indicated by
loading an empty pallet, and the lower rows are most
FIGS. 6 and 7 and provide support for both inner and
readily stacked with the platform in the folded position.
outer platform frames. Rigidly attached to the outer
The folded platform in no way interferes with normal
edges of the outer platform frames 58 are legs 70 of
handling of the conveyed materials. When the stack
‘length corresponding to that of the legs 68 of the leg
reaches a height warranting its use, the platform is quickly
hinge members.
and easily unfolded and placed in use to facilitate com
The inner and outer platform frames 48 and 58 are
pletion of the higher stack levels.
provided with corner angles 72 as shown in FIG. 3 which
When the conveyor is to be stored, turned on a short
are mounting means ‘for platform frame deck members 35
radius, or maneuvered at close quarters, the platform can
74.which may be sheet steel, plywood, or similar mate
be raised to allow movement of the conveyor unaffected
rial. The deck members 74 are fastened to the corner
angles 72 by fasteners 76.
Inclined ribbed supports 78 are positioned on the main
bracing member upper plate 26 to provide supporting
means for the folded platform frames as shown in FIGS.
2, 3, and 4. Also shown in these ?gures is a lifting eye
'80 centrally located on the plate 26 between the supports
78. A hooked chain 82, visible in FIGS. 1 and 2, is
suspended from a point beneath slide 16 of such length
vas to permit coaction with the lifting eye when the entire
folding platform is raised a convenient predetermined
height above the floor surface. A lifting handle 84 as
shown in FIG. 3 is centrally secured to the main bracing
by the platform wheels. The platform is raised by use
of the handle 84 and held in a suspended position by the
40 chain 82 which is engaged in the lifting eye 80 as shown
in FIG. 1.
Manifestly minor changes in details of construction
can be effected by those skilled in the art without depart
ing from the spirit and the scope of the invention as
de?ned by the appended claims.
I claim:
1. A folding platform for facilitating the stacking of
materials delivered by a portable conveyor comprising a
frame, means for attaching said frame to a conveyor, an
member 24 to facilitate use of the chain and eye 82 50 inner platform member pivotally mounted on said frame
and extending outwardly therefrom, legs extending from
and 80.
an outer edge of said inner platform member, an outer
In operation the invention is hingedly attached to a
platform member extending from said outer edge of said
inner platform member, hinge means interconnecting said
the ground or ?oor and the device issupported both by
inner and outer platform members allowing said inner
55
the wheels and by the conveyor. In the open unfolded
and outer platform members to be folded into raised
position the legs 68 and 70 provide support under the
parallel juxtaposition with said legs, and means comple
platform frames. FIGS. 1, 2, and 3 show the unfolded
menting said legs supporting said frame and platform
position of the platform. FIG. 1 indicates a worker
members at a height above a surface permitting a man
‘standing on the platform while placing conveyed mate
rials on a pallet stack. The slide 16 is conveniently 60 standing thereon to stack materials ?owing from the
conveyor as has been indicated. The wheels ‘38 rest on
tilted to receive the conveyed material 12 as it drops
from the apron 14 and place it at the workers’ ?nger
tips in the same repeating position. The positioning of
conveyor Without undue effort at levels above those con
veniently reached from the surface, said platform mem
bers when folded parallel being pivoted into the raised
position above said frame when use of the platform is
the materials is effected by the concave contour of the
slide. The lower edge of the slide is curvedly indented 65 not desired.
2. In combination, a conveyor, a contoured slide mount
as shown at 17 in FIG. 2 to facilitate handling of mate
ed on said conveyor to receive conveyed materials, and
Irial by permitting a grip to be secured on the material
a folding platform for facilitating the stacking of mate
before it has slid over the lower edge of the slide.
rial delivered onto said slide by said conveyor comprising
‘The unfolded platform extends as previously noted on
a frame, means for attaching said frame to said conveyor,
either side of a conveyor end allowing two packers to
an inner platform member pivotally mounted on said
handle materials from the platform height or a single
frame and extending outwardly therefrom, legs extending
packer to work from either side of the conveyor. The
from an outer edge of said inner platform member, an
extended width of the platform may be varied but a
outer
platform member extending from said outer edge
recommended width is one that permits use with truck
75 of said inner platform member, hinge means intercon
trailers or railroad cars.
5
3,055,47”)
necting said inner and outer platform members allowing
said inner and outer platform members to be folded into
raised parallel juxtaposition with said legs, and means
complementing said legs supporting said frame and plat
form members at a height above a surface permitting a
man standing thereon to stack materials ?owing from
said conveyor without undue effort at levels above those
conveniently reached from the surface, said platform
members being adapted to pivot into the raised position
above said frame and beneath said slide when use of
the platform is not desired.
3. A folding platform for facilitating the stacking of
is rigidly held in a vertical supporting position, said ec
centric hinge pin allowing said inner and outer platform
members to be folded into raised parallel justaposition
with said legs, legs ‘along an outer edge of said outer
platform member, said frame and platform members be
ing supported at a height permitting a man standing
thereon to stack materials ?owing from the conveyor
Without undue effort ‘at levels above those conveniently
reached from a working surface, said platform members
10 being ‘adapted to pivot into the raised position ‘above said
‘frame, said portable supporting means supporting said
materials delivered by a portable conveyor comprising a
frame, means for attaching said frame to a conveyor, an
inner platform member pivotally mounted on said frame 15
and extending outwardly therefrom, legs extending from
an outer edge of said inner platform member, an outer
platform member extending from said outer edge of said
frame and folded platform members thereby permitting
movement of the platform with the portable conveyor
While attached thereto.
.
6. A folding platform for facilitating the stacking of
materials delivered by a portable conveyor comprising
a tubular ‘frame, means for attaching said frame to a
conveyor, means portably supporting said frame, spaced
inner platform member, hinge ?ngers protruding from
cylindrical rotatable sleeves positioned on said frame, an
said inner and outer platform members and a leg hinge 20 inner platform member attached to said sleeves so as to
member positioned between said platform members, said
be pivotally ‘disposed with relation to said frame and ex
hinge ?ngers and said leg hinge member being pivotally
tending outwardly therefrom in ‘an open position, hinge
joined by a hinge pin eccentrically located with respect
?ngers protruding from an outer edge of said inner plat
to the pivoting platform members thereby allowing said
form member, a leg hinge member having legs extend
inner and outer platform members to be folded into 25 ing therefrom, an outer platform member with hinge
‘raised parallel juxtaposition with said legs, and means
complementing said legs supporting said frame and plat
form members at a height above a surface permitting a
?ngers. along ‘an edge thereof, said inner and outer plat
form member hinge ?ngers and said leg hinge member
being pivotally joined by a hinge pin eccentrically located
man standing thereon to stack materials ?owing from
with respect to the pivoting platform members and join
the conveyor without undue effort at levels above those 30 ing said inner ‘and outer platform members and leg hinge
conveniently reached from the surface, said platform
member such that when said outer platform member
members being adapted to pivot into the raised position
extends horizontally outwardly from said inner platform
above said frame when use of the platform is not desired.
member said leg hinge memberis rigidly held in a verti
, 4. A folding platform for facilitating the stacking of
cal supporting position, said eccentric hinge pin allowing
materials'delivered by a portable conveyor comprising a 35 said inner and outer platform members to be folded into
frame, means for attaching said frame to a conveyor, an
raised parallel juxtaposition with said legs, legs along
inner platform member pivotally mounted on said frame
‘an outer edge of said outer platform member, said frame
and extending outwardly therefrom, hinge ?ngers pro
and platform members being supported at a height per
truding from an outer edge of said inner platform mem
mitting a man .standing thereon :to stack materials ?ow
ber, a leg hinge member having legs extending therefrom, 40 ing from the conveyor without undue effort at levels
an outer platform member with hinge ?ngers along an
above those conveniently reached from a working sur
edge thereof, said inner and outer platform member hinge
?ngers and said leg hinge member being pivotally joined by
face, said platform members being adapted to pivot into
‘the riased position above said ‘frame, said portable sup
a- hinge pin eccentrically located with respect to the pivot
porting means supporting said frame and folded platform
ing platform members and joining said inner and outer 45 members thereby permitting movement of the platform
platform members and leg hinge member such that when
with the portable conveyor while attached thereto.
said outer platform member extends horizontally outward
7. An apparatus for facilitating the stacking of ma
ly from said inner platform member said leg hinge mem
terialsdelivered bya portable conveyor comprising a
ber is rigidly held in a vertical supporting position, said ec
contoured slide, means for attaching said slide to the
centric' hinge pin allowing said inner and outer platform 50 delivery end of the conveyor so as .to extend therefrom
members to befolded into raised, parallel juxtaposition
in alignment with the conveyor, a tubular. frame, means
With said legs, and means complementing said legs sup
for ‘attaching said frame to the conveyor below said slide
porting said frame and platform members at a height
attaching means such that substantially the whole of said
above a surface permitting a man standing thereon to
‘frame is located beneath the conveyor and said slide,
stack materials ?owing from the conveyor without undue 55 said frame attaching means including a pivotal arrange
effort at levels above those conveniently reached from
ment to permit relative rotation of said frame to the con
the surface, said platform members being adapted to
veyor in a vertical plane, means for portably supporting
pivot into the raised position above said frame when use
said frame, means permitting support of said frame sole
of the platform is not desired.
ly by said conveyor and slide, spaced cylindrical rotat
5. A folding platform for facilitating the stacking of
able sleeves positioned on said frame, a rectangular tubu
materials delivered by a portable conveyor comprising
lar-framed inner platform member attached to said
a frame, means for attaching said frame to a conveyor,
sleeves so as to be pivotally disposed with relation to
means portably supporting said frame, an inner platform
member pivotally mounted on said frame and extending
said frame and extending horizontally therefrom in an
open position, hinge ?ngers protruding from an outer
outwardly therefrom, hinge ?ngers protruding from an 65 edge of said inner platform member, a concavely grooved
outer edge of said inner platform member, a leg hinge
leg hinge member having legs extending therefrom, a
member having legs ext-ending therefrom, an outer plat
rectangular tubular-framed outer platform member with
form member with hinge ?ngers ‘along an edge thereof,
hinge ?ngers along an edge thereof, said inner and outer
said inner ‘and outer platform member hinge ?ngers and
platform member hinge ?ngers and said leg hinge mem
said leg hinge member being pivotally joined by a hinge
pin eccentrically located with respect to the pivoting
platform members and joining said inner and outer plat
form members and leg hinge member such that when said
outer platform member extends horizontally outwardly
from said inner platform member said leg hinge member 75
ber being pivotally joined by a hinge pin eccentrically
located with respect to the pivoting platform members
and joining said inner and outer platform members and
leg hinge member such that when said outer platform
member extends horizontally outwardly from said inner
platform member said leg hinge member is rigidly held
3,055,477
7
in a vertical supporting position by coaction of the con
cave grooves of said leg hinge member with the tubular
frames of the inner and outer platform members, said
eccentric hinge pin allowing said inner and outer platform
members to be folded into raised parallel juxtaposition
with said legs, legs along an outer edge of said outer
platform member, said frame and platform members
being supported at a height permitting a man standing
thereon to stack materials ?owing from the conveyor
without undue effort at levels above those conveniently
reached from a working surface, and said platform mem
bers being adapted to pivot into the raised position above
8
?owing from the conveyor without undue effort at levels
above those conveniently reached from a working sur
face, and said platform members being adapted to pivot
into the raised position above said U-frame.
9. An apparatus as described in claim 8, said bracing
member including an inclined support positioned to coact
with said folded parallel platform members whereby said
folded parallel platform members are stably supported
thereupon when pivoted into the raised position above
said U-frame.
10. An apparatus as described in claim 9, including
means suspending said U-frame and folded platform mem
ber from the conveyor and said slide, said U-frame being
said frame.
vertically pivoted on said pivotal connecting means there
8. An apparatus for facilitating the stacking of ma
obviating the support of said wheels.
terials delivered by a portable conveyor comprising a 15 by 11.
Apparatus for facilitating the handling of materials,
contoured slide, means for attaching said slide to the
comprising a portable conveyor, a folding platform ex
delivery end of the conveyor so as to extend therefrom
tending from said conveyor and secured thereto, .said
in alignment with the conveyor, a tubular U-frame, means
folding platform comprising a frame, an inner platform
attaching said U-frame along the bottom of the U to
the conveyor below said slide attaching means such that 20 member pivotally mounted on said frame, an outer plat
substantially the whole of said U-frame is located be
neath the conveyor and said slide in alignment with said
slide, said pivotal connecting means permitting rotation
form member extending from said inner platform mem
ber and hingedly connected thereto, and means support
ing said frame and platform members at a height above
a surface permitting a man standing thereon to stack ma
of said frame relative to the conveyor in a vertical plane,
terials ?owing from the conveyor Without undue effort at
a bracing member extending across said U-frame near 25
levels above those conveniently reached from the surface,
the open end thereof, wheels rotatably positioned below
said platform members being adapted to fold into a posi
said bracing member thereby supporting said U-frame
tion above said frame when use of the platform is not
in conjunction with said pivotal connecting means, spaced
desired.
cylindrical rotatable sleeves positioned on said U-frame,
12. Apparatus for facilitating the handling of materials,
30
a rectangular tubular-framed inner platform member at
comprising
a portable conveyor,..a folding platform ex
tached to said sleeves so as to be pivotally disposed with
tending from said conveyor and secured thereto, said fold
relation to said U-frame and extending horizontally there
ing platform comprising a frame, an inner platform mem
from in an open position, hinge ?ngers protruding from
ber pivotally mounted on said frame extending outward
an outer edge of said inner platform member, a con
therefrom, an outer platform member extending out
cavely grooved leg hinge member having legs extending 35 1y
wardly from said inner platform member, means hinged
therefrom, a rectangular tubular-framed outer platform
ly connecting said inner with said outer platform member
member with hinge ?ngers along ‘an edge thereof, said
so as to permit folding said platform members into raised
inner and outer platform member hinge ?ngers and said
parallel juxtaposition, and means supporting said frame
leg hinge member being pivotally joined by a hinge pin
and platform members at a height above a surface per
eccentrically located with respect to the pivoting platform 40 mitting
a man standing thereon to stack materials ?owing
members and joining said inner ‘and outer platform mem
from the conveyor without undue effort at levels above
bers and leg hinge member such that when said outer
those conveniently reached from the surface, said plat
platform member extends horizontally outwardly from
form members being adapted to pivot into the raised
said inner platform member said leg hinge member is
position above said frame when use of the platform is
45
rigidly held in a vertical supporting position by coaction
of the concave grooves of said leg hinge member with
the tubular frames ‘of the inner and outer platform mem
bers, said eccentric hinge pin allowing said inner and
outer platform members to be folded into raised paral
lel juxtaposition with said legs, legs along an
outer edge of said outer platform member, said U
frame and platform members being supported by said
wheels, legs, and pivotal connecting means at a height
permitting a man standing thereon to stack materials
not desired.
References Cited in the ?le of this patent
UNITED STATES PATENTS
760,634
2,798,732
Lanpher ____________ __ May ‘24, 1904
Craig ________________ __ July 9, 1957
2,872,252
Konkle ______________ __ Feb. 3, 1959
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