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Патент USA US2409872

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Oct. 22, 1946. "
Filed March' 29, 1944
3.Sheets-Sheet l
_/ / / / /
Oct. 22, 1945.
Filed March 29‘, 1944
3 Sheets-Sheet 2
Oct» 22, 1946’
Filed March 29, 1944
3 ‘Sheets-Sheet‘ 3
' "
_ iNvEN'A-oIe‘
Patented Oct. 202', 1946
2,409,870 ‘
James Aitken Kinnaird, Braiswick, ‘near 001
chester, ‘England, assignor to Bromilow and
Edwards Limited, Bolton, England
Application March 29, 1944, ‘Serial No. 528,584
In Great Britain July 14, 1943
This invention relates to apparatus for use in
loading and unloading moving‘ floor vehicles, with
moreespecial reference to apparatus intended for
transferring cased, boxed or bagged goods, or
vehicle are stacked or arranged, ‘and adjacent
the forward end of which section one end of ‘the
moving floor of the vehicle to be loaded "will
be positioned, the floor of such vehicle and ‘the
other bulky articles or packages to or from ve
moving floor section of the deck being aligned
hicles having floors of the kind described in
patent Speci?cation No. 1,970,899 or No. 2,129,796,
and particularly lightweight trailer or semi
.trailer vehicles of the kind described in Patent
so that the one forms in effect a continuation
No. 2,353;948.
‘Normally, loads ‘of ‘packages or similar bulky
articles in transit are arranged in stacks on a
of the other, whereby on the moving "floor sec
tion of the deck and the ?oorof the vehicle .
being synchronously operated the load on the
said section will be transferred automatically to
the floor of the vehicle. Conversely when a
vehicle is to be unloaded, by synchronously oper
ating the vehicle ?oor and deck section in the
reverse direction the load carried by the vehicle
loading deck ready for placing ‘on the respective
vehicles when they arrive. On arrival a ‘vehicle
is ‘run ‘upagainst the forward edge of the loading 15 will be transferred automatically to the deck
deck and the ‘packages are moved or “carried by
The deck section, conveyor or moving ?oor
man power from the deck ‘to the vehicle and
and the vehicle floor are preferably power-driven,
again stacked on the floor or platform of the
conveniently ‘electrically, and in unison from a
vehicle. ‘In loading a vehicle having a ?xed
?oor some of the packages are moved or carried a single control, with provision also for hand‘ac
tuation if desired or‘ in the case of failure of
the current. The deck section is a facsimile of
the vehicle ?oor but mounted in the loading deck
Where ‘the vehicle has a longitudinally ‘moving
which may include several such sections.
floor ‘according to either ‘of the aforementioned
Advantageously, means are furnished for main
speci?cations, the ‘packages are moved or car 25
taining the front end of the l’IlOVlIlg. floor deck
ried to the vehicle and ‘placed on the rear end
of the ?oor which is operated to carry the loaded
section and the end of the vehicle ?oor which is
adjacent to it at the same level during loading
packages an appropriate ‘distance towards the
to the front or ‘to one side of ‘the vehicle ?oor,
the'others following until ‘the load is‘ complete.
front‘ of the vehicle and at the same time bring
a ‘further portion of thel’?oor into position to
receive ‘packages, ‘this process being ‘repeated as
the loading proceeds until the packages l?rst
placed on the floor reach the‘front of the “vehicle
and the loading is completed. In the case of
vehicles having transversely moving floors as de- ‘
scribed in patent speci?cation No. 1,970,900 the
procedure is similar, but towards ‘the far side
of the vehicle, while the procedure which has to
' be followed when unloading packages from mov
ing ‘floor vehicles willbe understood without
further description.
The object of the invention is to provide ap
paratus by means of which moving ?oor vehicles
and unloading of the vehicle, thereby overcoming
the effect of variations in the ?exure of the
vehicle springs which would otherwise occur as
the loading of the vehicle changes.
Further, in contradistinction to the embodi
ments of moving ?oor illustrated in the afore
mentioned speci?cations all of which exhibit
downwardlyinclined portions at the loading or
unloading end, the full run of both the conveyer
and movingvehicle floor is horizontal, one form
ing a straight continuation of the other with
the adjacent ends so devised that the gap .be
tween the belts is substantially eliminated.
The invention will be further described with
reference to'the accompanyingexplanatory draw
can be loaded from a loading deck and crated,
ings which illustrate by way of example embodi
boxed or bagged goods, or other bulky articles
ments of apparatus for transferring packaged
hereinafter referred to as packages, and loads
goods to and from movable ?oor ‘vehicles.
of such packages transferred from the vehicles
In the drawings:
to the deck, expeditiously and with a minimum
Figs. 1 and‘ 2 are pictorial representations'more
use of man-power.
or less diagrammatic ‘of loading decks reach
Further and favourable objects will appear
equipped with “these conveyers or movable-deck
from the following description.
sections for the transfer of goods to ‘or “from
According to the present invention a loading
moving floor Vehicles‘ for loading or‘ discharge as
deck ‘for the purpose speci?ed includes a con
veyor or moving ?oor section on‘which packages
to be loaded on to the floor of a moving floor
Fig. ‘3 is ‘a longitudinal sectional view of apre
ferred embodiment of electrically driven conveyer
portions of the ?exible band I3 constituting the
or movable deck section and
Fig. 4 is a cross sectional view thereof showing
ends of the movable ?oor section 4 form hori
zontal continuations of the main run of the mov
the protecting lip for the edge of the band or
belt, while
Figs. 5 and 6 are respectively adetail sectional
view and a. detail plan ‘view of an end-loading
moving ?oor vehicle in position against a mov
able deck section say of the loading deck illus
trated in either Fig. 1 or Fig. 2 for the transfer
of goods from one to the other, i. e. for loading
or discharge.
Referring now to the drawings but ?rst more
able ?oor, such ends being supported by end
rollers 28 and 2| borne by the longitudinals I0,
extending for the full width of the band and
having their supporting surface in the same hori
zontal plane as that of the supporting rollers I2
for the purpose hereafter explained with refer
ence to Figs. 5 and 6, while the band I3 runs
‘downwardly and inwardly from such end rollers
- 20 and 2| to their respective winding drums I4
and I5.
The longitudinals III have upper inwardly di
generally designated I comprises a structure 15 rected ?anges 22 flush with the deck surface
raised approximately to the height of the body
farming protecting lips for the edges of the band
?oors or platforms generally designated 2'of the
vehicles 3 with which the loading deck is to
As will be appreciated, the loading deck with its
co-operate, Fig. 1 showing a standard four
conveyers or movable deck sections 4 may be util
wheeled vehicle in position against the loading 20 ized with any appropriate moving ?oor vehicles,
deck and Fig. 2 showing vehicles of the semi
but especial advantage results where‘ the movable
trailer type.
?oor of the vehicle is designed for cooperation
Both loading decks represented are shown
with the loading deck. Such an arrangement is
furnished by way of example with ‘three con
illustrated in Figs. 5 and 6 where I again repre
veyers or movable deck sections designated 4 25 sents the loading deck, 4 the movable deck sec
which may be arranged to passthe goods from
tion, 8 the front edge of the deck, ID the main
a warehouse, manufactory, rail-head despatch
longitudinals of the deck section co-terminous
or sorting department’ or other location 6 to the
with such front edge, I3 the ?exible band of the
' loading deck I, preferably under a roof or canopy
movable deck section, I4 its front winding drum
'5 for transfer to the roadrvehicles 3.
30 and I8 its driving motor. In these ?gures, 2 also
Each conveyer or movable deck section 4 com
particularly to Figs. 1 and 2, the loading deck
prises a belt adapted to be power driven to move
represents the‘body floor of the vehicle 3, such
?oor comprising a ?exible band supported by
packaged goods such as are represented at 'I' in
rollers 30 carried by a body subframe'3 I’ and hav
' Fig. 2 forwardly towards the front edge 8 of the
ing a rear end winding drum 32 operated through
loading deck for transfer to the ?oors 2 of the 35 a gearbox 33 by an electric motor 34 slung from
vehicles 3 or rearwardly when unloading such
the subframe 3I, the body ?oor 2 as is the case
vehicles, and in the embodiment of movable deck
with the moving deck section 4 being again‘ de
section represented in Figs. zland 5 the preferred
form of conveyer 4 is illustrated which is virtually
signed'so that instead of its. end fallingaway to
the winding drum, it forms a horizontal continua
40 tion of the parts supported by the rollers ‘38 run
ployed‘ on the vehicles 3 except that instead of '
ning over the transversely extending'end roller 35
being carried by the vehicle chassis it is recessed
and thence down to the end drum 32. ‘By this
into the loading deck I so that its supporting sur
arrangement when the vehicle is properly posi
face is substantially ?ush therewith.
tioned against theloading deck there is a mini-v
Referring‘to' Figs. 3 and 4 it will be seen that
mum gap between the movable deck section It
the concrete or other material comprising the ' the adjacent movable ?oor 2 and no obstruction
deck I is formed with a longitudinal cavity 9
to the transfer of goods from the one to the other.
accommodating main longitudinal members ID
For maintaining the adjacent ends of, the two
of the movable deck section which rest on cross
moving ?oor sections at the same level'during'
members II seated in the 'body‘of the deck I and ,50 loading‘
and discharge, notwithstanding the va
carrying a series of supporting rollers I2 for a
on the springs of the vehicle 3, a'sup-v
?exible band‘ I 3 constituting the conveyer'or mov
porting member 40 is furnished on the front edge’
ing deck section proper; Conveniently there are
8 of the loading deck I and with which‘member'a
three rows of rollers I3 with the rollers of each
row staggered in relation to those of adjacent 55 guide roll III on‘ the tail end of the body subframe‘
3I co-operates as the vehicle is backed; up against
rows as described in patent speci?cation 1,970,899
the loading deck; to bring the vehicle body sub
aforementioned and conveniently also the ends of
frame 3I into accurate horizontal alignment with’ .
the ?exible band I3 are mounted on front and
a facsimile of the moving ?oor structure em
the frame N3 of the loading deck, thus‘ assuring
rear drums I4 and I5 operated through gear
boxes I6 and I‘! respectively by electric motors 60 that: the two ?exiblebands are in vhorizontal
alignment and virtually constitute a smooth cone
I8 ‘and I9 slung from the main longitudinals I0
tinuation one of the other. Further, to cover the
and housed underneath the ?oor in the cavity 9
contingency of the vehicle being partially or fully
in the loading deck I, the arrangement being such
loaded when it is backed against the'deck, the
that as'the motor I8 is operated to wind the'band
I3 on the drum I4 the band moves forwardly ,6 support member 40 is formed with an inclined
runway 42 up which the roller ‘4| rides thus to
towards the front edge 8 of the loading deck,
while conversely, when the motor, I9 is operated
lift the'body ‘?oor 2 to the requisite positioniand’
to wind the band on the drum :I5 it'is moved
preferably also a ?exible abutment or cushion 43,
' rearwardly away from such, edge and takes with
say of india rubber, may be furnished to consti
it any stacks of packed goods such as 'I' resting on 70 tute a limit stop preventing contact between the
its surface and supported by the vrollers I2 carry
rigid parts of the back of the vehicle 2 andjthe
ing the band.
In contradistinction to the speci?c embodi
ments of moving ?oor described, and illustrated
loading deck I.
If desired, to suit the loading decksfor use with
vehicles having body ?oors or platforms, 2 at 'dif-,
in the aforementioned speci?cation1,970,§99-the 75 ferent heights above road leveLthe ‘movable deck
section frames may be adjustably carried by screw
jacks or power actuated rams.
synchronised movement of the vehicle floor 2
and movable deck section 4 when loading or dis
charging may be assured by operating them in
adapted to be illuminated when either or both of
the leads is or are coupled to the vehicle, and
thus warn the persons concerned against moving
the vehicle and thereby causing damage to the
To facilitate positioning the vehicle laterally in
relation to the deck section, guide channels or
by the control panels 59 shown associated with
runways may be provided for the vehicle wheels,
each movable deck section 4 in Figs. 1 and 2.
and to ensure that goods stacked on the con
Each control panel 5!] mounts a pair of loading
switches 5! for the deck section 4 and 52 for the 10 veyers 4 will not foul the sides or ends of the
vehicle body, loading areas may be clearly marked
body floor 2, and a pair of unloading switches
unison from a single control such as that a?orded
53 and 54 or a, single pair of push buttons may
be mounted on a change-over switch selectively
connectable in the control circuits of either the
forward loading motors or the rearward discharg 15
as at 51 on the upper face of the bands I3 or
resort may be had to separate loading mats 58
of the requisite area which would have the addi
tional advantage of reducing the wear and tear
on the bands. Furthermore, guide rollers could
ing motors l9 and 34, the arrangement being
be furnished at the rear of the body sides and,
such that at least the vehicle ?oor can be op
instead of the conventional tailboard, a pair of
erated independently so that should a vehicle
hinged ?aps one at the rear of each body side
be brought to the loading deck with its ?oor
in an incorrect position for loading, such ?oor 20 could be arranged to form guide walls for the
stack passing onto the vehicle floor 2.
may be moved into its proper position before
What I claim is:
the synchronous movement of both ?oors is com
Apparatus for loading and unloading vehicles,
menced for the purpose of transferring the load
comprising the combination with a vehicle hav
on to the vehicle, avoiding also the necessity of
manipulating the vehicle ?oor by the hand crank 25 ing a moving ?oor conveyor of the type referred
to including conveyor winding drums at each end
or equivalent. From each panel 50 run ?exible
of the conveyor belt and intermediate rows of
leads 55, 56 of a length suitable for coupling to
supporting rollers, of a loading platform having a
the floor motors at the forward and rear ends of
similar conveyor with which the vehicle con
the vehicle. Conveniently the ?exible leads
would have di?erently coloured plugs and the 30 veyor is adapted to be aligned, wherein the adja
cent end drums of the two conveyors are posi
sockets on the vehicles would similarly differ in
tioned below and inwardly of their respective
colour to prevent accidental cross connection of
end conveyor supporting rollers so that the full
the leads, or alternatively the plugs may differ in
run of both conveyors is horizontal, one forming
form or construction and the sockets be comple
mentarily formed so that only the appropriate 35 a straight continuation of the other with a, min
imum gap therebetween.
plug can be inserted in a socket. Further, there
may be provided on the panel an indicator lamp
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