Note: Descriptions are shown in the official language in which they were submitted.
fRO~ EEHLEF~ PflUI TT ~THU ~03. 27. ' 86 17: ~5 NO. 5 P~GE 2~10
1 ~2~ 8
3M13I/K313-s
TRUC~C LOADING
5~CKG~OUNI:~ OF T~E IN,~TIQN
7The p~e~ent inven'~ n rel~tes to ~utoa~a~ed rear
8 end load~ng of trucks or trallers u3in~ pallet5 ~ well ~9 a
9 llftlng ~ork type unmanned loading device whlch rec~lve~ the
10 pallets ~rom a height a~stable pl~t:~orm dev~ce or the like
11 and moves the pall~st~ throu~h a helç~ht ad~ustabl~ loadlny
12 b~id51e lnto ~he truck or tra~ler ~hich 1~ turn h~s~ been
1~ po~ ioned 1~ relation to the dir~l3ction oP mo~remcnt; pravlded
14 b~ and o~ which ~h~ lc?i~din6~ d~ice i~ ca~able.
16~erman prlnted p~tent ap~lic~tion 31 ~2 8gg ~nd 33
1716 419 dls~lose and descrlbe devices of th~ ~e to which
18 the inve~tion pertain~. ~enerally speaking ~ load~n~ o~
1~ trucks OI~ trailer~ 1~ means of a loading bridge or the l~ke
20 encounter~ certaln problem5. The l~avel o~ that ~rldge must
21 be ma~ched on one hand with ;~ loading surface o~ the truck
22 or ~r;ailer and wlth a platform that carries the loadins~
23 de~lce, ~rehic;le ~r 3na~h~ne on ~he other h~nd. Thi~; pro~lem
~4 Dpe~ifi~ally i5 en~ou~tered for an ln~r~a~:in~ load causin~
25 an increa~ng lowering of the loadlns~ ~sur~ce of the tru~k
6 so ~h~t a lev~l compens~t ~ on mu~;t be provided ~or becau~e ~ t
2r is necessary that ~ the tran3~er of and b~ the loadin~ ~
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20337-329
vehicle, device or machine is carried out without encountering any
s~ep.
SU ~ Y OF THE INVENTION
I~ is an ~bject of the present invention to provide for
a new and improved loading device of the type referred to above
such that in a very simple manner there is continuously provided a
level compensa~ion between truck ttrailer) loading ~urface on one
hand and any transfer and bridging equipment on the other hand.
The invention provides loading device for automatic
rear-end loading of co~mercial vehicles or trailers with pallets
by means o~ a loading machine whlch operates according to the
fork-li~t princlple and, working from a vertiaally adjustable
platform, takes the pall.et~ from a aolleatlng platfor.m and drlves
them onto a loading surface in the commercial vehiale or trailer
vla a vertically ad~ustable transfer bridge, the commerclal
vehlcle or trailer being located with its rear end in a dock, by
means of which its posltion wlth respect to the driving direction
of the loading machine is determined, characterized in that said
transfer bridge is arranged in the dock ~hat accommodates the rear
end of the commercial vehicle or traller and ls provided with
; means for lowerlng, under load, said loading surface.
The arrangement provides fo the u~ilization of an
unmanned forklifting type loading machine which transfers a pallet
from a height-adjustable platform across a height-adjus~able
~; loadin~g bridge into the truck or trailer.
The invention offers the advantage that ~he ac~ual
construction features necessary for practiciny the invention are
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20337-329
quite minimal so that the rear loading end of the ~ruck or trail~r
can in fact be retained in the level of the loading bridge.
~ESCRIPTIQN OF THE DRAWINGS:
While the specification concludes with claims
particularly pointing out and distinctly claiming the subject
matter which is regarded as the invention, it is believed that the
invention, and the features and advantages thereof w~ll be better
understood from the following description taken in connection with
the accompanying drawings in which:
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FRO~ ~EEHLER P~ITT ~THU)~3.27,;~6 1~ N~.5 PRGE 5~1~
~ .89~
1 I
2 ¦ the fi~ure illu trate~3 a ~lde ~Tiew ox~ the loadir~g
3 I devlce in accordanc~ with the pre~e3: red em~odiment o~ ~he
4 ¦ present $nven~ion ~03~ p~acticln~ the beæt mode thereof
5 ¦ wh~r~by ~peci~lcally a pha~;e o tk~e loa~llng process l~i
6 ¦ lllus~rated wherein one or several pialletæ are be~ng ms~red
7 ¦ a~ro~3s a loading bridçle onto the load$n51 s~r~ac~ o~ the
8 ¦ cargo pace o~ ~ tl uok . r3
Proceeding now to the detailed de~cripti5n o~ the
11 ~r~wlngs the ~i~ure illu trate~ a loadin~ nlachine
12 cons~r~c-t~d a~ a Porl~ tir~g, vehicle mann~d devioe wi~h
13 forwar~ly ex~en~ling ~ork elernentq la and o~rating in an
14 unmanned environm~n~. The ~orkliftln5;1 devi~e and vehlcle 1
15 in turn i3 moun~ed so as to run on a platform 2. The ~otted
16 1 ~ne~ deplct the vehicle and device 1 in retra~ted position.
17 Pl~tfor~Q 2 iR mounted and positioned for ~rertical a~ u~tmen~
1~ u~ing liftln$~ post~ 2a. The platform 2 may be lowered or
19 ralsed by mean~3 of hydraullcs.
21 The loadinSr vebicle and mach1ne 1 i~ pro~ided for
~2 moving pallets 3 l'rom som~ level lrlto the car~o or loading
2:S space of a truak 4. The rear or trallins~ end ~aa o thls
24 truck is po~1 tloned in a dock and a~tatlonary loadir3g devic~
25 5 ~o that the car~o space ln the truck 4 has a deI'l~lte
26 posi~ion i~ relatlon to the direc'c~on o~ movement ar~d
2~ op~ration o:~ the loadinç~ ~achlne and ~ehicle 1.
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FR011 E~EEHLER PPIJITT (THU)a3.27, '86 17:08 N~.5 I'RGE 6~1~
~ 9()8
3 In ~he particular lnst~nce i3.1ustrated ir~ the
4 ~lgure a pha~qe of siperatio~ aepict~d where~n ~ ~:o~ lectlon
5 or tra~Clporl pl~tform tnot ~hown~ ha~ been ren~ovea Pro~n the
6 are~ an~ ~;p~ce be~cw~en the pla~form 2 on o~e hand a~d the
7 doclc ~trllcture 5 on the other hand . Thîs co~ leotion platform
a 1, mo~7ed on r~ils 6 in ~ directlon tra~sverse ~o 'che planc
9 of the drawings. The particula~ p~llet or pa~let~ 3 which
10 thi3 coll~ct~on plat~orm had heen move~ and pl~ced into t~at
11 ~ap~ce be~ween the device~ 5 and 2 i~ now beinS;~ held by an~l
12 on the i~o~k3 la o~ the loadln~ machine and v~hicle 1.
13
14 The tr~n~er fro~ loadir~g lp}atform ~ and the
15 a~oremerlt10ned space to the l~ading ~sur~ace s~nd car~o space
16 of the truck 4 i carried out by mean~; o~ a loading ~r~dge
17 7. ~rhis~ b~ldge ~ constitutesl a part of the load~ng docle 5
18 i . ~ connec:ted the~eto and i~ heigh~ ad~ustably
19 mounted thereln. The ~pac~ b~tween the brids~e ~ ~nd ~he
~0 platform 2 1~ bridyed by means o~ pivc)tal, :eold-up bridge
21 part~ 8 an~l 9 bei~g pivotally linked to the platfor~ 2 and
22 the bri~ e 7 respectively. The brids~ ~ moreover i8 provided
2~ wlth a dock part ~a tha~ ext~nds beyond and ov~rha~s the
~4 rear loadlns~ end 10 of truclc 4 a~d into the cargc> spac4~
25 ~thereo~.
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FROM eEEiJLER PRUITT ~THU)03.27. '~6 17~8 NO.5 PR5E 7~10
1 ~;89~3
The brtds~e ~ mu~t ~e ~a~usted hydr~ul~ally ir
3 vertical directlon but oth~r h~3ight acl~u t~nSf struc~r~s and
4 d~ive can be u~ed. In ope~a~ion ~nd a~te~ t~e truck 4 has
5 been placed lnto ~he illustrated position, the brid~e
6 flrl3t lowered rom an inittal and startln~ po lticn whçreir
7 the bri~e ic: po~;itlo~ed well a~ove the load~n~ Elar~ace in
8 the yet unloaded truck 4 . ~he br~clge ~ ls ¢pe~i $ic~11y
lc~wexcd untll the extension ~ come3 to rest on the truck
10 end 10. The bridg~ 7 ls now "loaded't (~lased~ so ~ha~ the
11 ~orce acting on the end 10 i-q equal t~ the ïoad ~hlch
12 co~re~ponds or wlll corref~pond to thc ~um total orq ~he load~
13 that l;z~t~r, ~uring the tran~i~e~, will b~ e~cer te~31 u~n tl~
a~ t~uck end 10 by the wei~ht o~ ~he E~allet plu~: ~he w~ight o~
15 the loading mach~e an~ vec~icle 1. In thls pa~ticu;l~r
1~ po~3ition one wtll ~ix the level of the brid~re ~ a~d the
17 plat~orm with br1ds~e par~ B i~ now ad;lusted so that the
18 olded up part 9 of Jche loadin~ brldge 7 at ~he same level
19 un~er lo~d .
21 D~trln~ the traLnsfe~ operatioI~, wh~an the loa~ g
2Z vehl~le 1 moves th~ palle 1: 3 over the ~rld~e across load enA
2~ 10 and lnto the cargo spa~e o~ truck 4 the force exerted by
2g the hy~raulics upon bridge ~ i~ relaxed ~io tha-t the lev~l o~
25 the brldge ~ is main~airled as the vehicle 1 and the load 3
2~ are moved across the brldge and onto the vehicle platform ln
27 the c~r~o pace. In other word~, the loading vehlcle 1 with
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FRO11 ~EEHLER Pf~lJITT ~THU)a3.27.'86 17:09 NO.5 P~GE 8~10
~,890~3
2 load 3 is moved a~ros~ the bridge ~1, 9, ~, ~a onto the 1 :3adin~
3 surface Qf ~ruck 4 ~ the hydraulic b~a~ certed upon the
4 truck 4 by th~ br ~ dS~e par t 7a ia relaxed to the exten~ t}~e
5 weight of vehicle 1 and load 3 take ov~r as down~ardly
6 dire~ted l orce that acts on ~he truck 4 . This !3 ~ tuat~ n ie~
~ (or can be) dynami~ally maintalned by c~usin~r the pl~tPorm-
8 bridsl~ ? tc) main~ain ana ~old it~3 po~ ion as the load~
9 3 a:re moved on lt and exert their ~orce, ~rs-t on b~id~ae
10 and then on th! load surface o~ the l:ruck 4.
11
l~ The invention 15 not lim~ted to the embodiments
1~ de~c:ribed above, but all chans~ nd mc~di~lo~tlon~ thereo:e,
14. n~t ~nstltutln~ de~artures ~rom the ~piri~ ~nd ~cop~ o~ ~h~
15 invent~on are intended to be lncluded.
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