вход по аккаунту


Патент USA US2404629

код для вставки
July 23,1946.
R, D, GmFF
Filed Jan. 19, 1944
' 5 ‘Sheets-Sheet 1
Patented July 23, 1946
Robert‘ D. Griff, Rock Island, 111., assignor to
.Deere & Company, Moline, Ill., acorporation of
Application January 19, 1944,, Serial No. 519,070
4 Claims. . (01. 198—94)
The present invention relates generally to load
ersfor agricultural root ‘crops and the like, such
as sugar beets or the like.
'plesof the presentinvention have been incor- 3‘
' Figure 2 is a fragmentarysectional view taken
The object and general nature of the present
invention is the provision of an improved loader
generally along the line 2-2 of Figure 1 and
showing the’ looped section of the upper run of
' the wagon elevator or conveyor.
for picking up beets from the ground, as from a
Figure 3 is a side view of a slightly different
pile or windrow, and elevating them into a wagon
form of beet loader, employing improved driving
or truck drawn alongside the loader. Further,
means for the elevator.
it is a particular feature of this invention to pro
Figure 4 is a plan view of the loader shown in
vide improved conveyor and elevator means for 10
Figure 3.
handling the crop and particularly is it a feature
of this invention to provide a'transverse elevator
supported by rotatable members at its upper and
Figure '5 is an enlarged fragmentary side view
showing the improved loader shields.
‘This application is a continuation-in-part of
lower ends and driven by the lower member,
whereby the upper ?ight or run of the elevator 15 United States ‘patent application, Serial No.
456,459, ?led August 26,1942,‘ for Beet loader,
is relatively slack, thereby serving as a receptacle
?led by myself, Claude ‘W. Walz, and Clarence
for receiving the beets or other crop.‘
'Another feature of the present invention is the V
.T. Rasmussen.
Referring now tothe drawings, more particu—'
provision of a conveyor 'or elevator particularly
arranged to elevate crop products and the like 20 larlyv to Figure l, the beet loader is indicated in
its entirety by the reference numeral | and is
and to receive the same from another conveyor
or other crop handling means, with the lower , adapted to be propelled by a farm tractor of con
ventional construction‘, preferably one having "a
portion of the upper conveyor arranged with a
power take-off shaft and a power lift unit, both’
section supported in a'downwardly hanging loop,
with driving means for driving the conveyor or 25 driven from the tractor motor. The tractor, with
its power lift unit and power take-off shaft, is
elevator'varranged. at the lower side thereof so
shownin some’ detail ‘in the parent application
that the looped portion will always be‘ present
identi?ed above andv hence has been omitted from
to serve ‘as a receptacle'for receiving the crop
Figure 1. However, in Figures 3 and 4, the trac
products. Moreparticularly, it‘is a feature of
this'invention to arrange the driving means so 30 tor is indicated in its entirety by the reference
as toffeed .the' conveyor elements directly‘to the
' numeral 2 and is shown as equipped with a power
looped section so that, even. though some of the
liftiunit 3 ‘and a power'takeI-off vshaft 4.
other-supporting elements for the conveyor may
become jammed, resulting in a locking of the
frame |6 carried on‘ ground wheels I‘! by means
The loader'I includes a’ mobile supporting‘
drive, there will beno tendency for the looped 35 of an axle‘ or the like. The frame .l6 includes a
pair of longitudinally extending frame members
section to become taut and thereby destroy the
2| and 22 connected together at their‘ ends by
cross members 24. A conveyor and pick-up unit
35Iis carried by the frame |6 between the longi
provide a beet loader having a simpli?ed arrange
ment fordriving the conveyors and elevators, 40 tudinal members 2|‘ and 22, the unit 35 including
a pair of side bars 36 and 31 held in spaced apart
and a further feature of this invention is the
relation by suitable means (not shown). A pair
provision of an improved beetloader having auto
of brackets are ?xed, ‘respectively, to the frame '
matically adjustable guards for guiding the beets
members 2| and 22 and pivotally support the rear
to the loader which are arranged so as not to
interfere with a relatively highlift of the front 45 ends of the side bars 36 and 31 through the roe-'
dium of a cross shaft 4| to which the rear ends
end of the loader when arranging the latter for
of the side bars 36 and 31 are connected by suit
looped‘ shape of the conveyor.
A further'object of the present invention is to
‘These and other objects and advantages of
the present invention will beapparent to those
able bearing brackets. The shaft 4| therefore
tion with the accompanying drawings.
sprocket 42 is ?xedto the shaft 4| vand receives
a sprocket chain 43 by which'power is transmitted
7 serves as the pivot'axis about which the. pick-up
skilled in the art after ‘a consideration of the 50 conveyor unit 35'pivotsin a generally ‘vertical
‘ direction
between the side bars 2| and 22. A
following ‘detailed description, taken in conjunc
1 In'the drawings:
_ »
[Figure lmis ‘a perspective view of the rear por
from the power take-off shaft connections to the
tionl’of a vsugar beet loader, in whichthe prlncie 5.5; cross shaft 4|.j Chain sprockets 44 and 45. are
the beets are received. The right end of the
shaft 4| extends into a gear box (not shown)
enclosing a pair‘of bevel gears, one carried by
the right end of the shaft M and the other by
the forward'end of a generally longitudinally
loop, indicated by the reference character L, be
tween the sprockets 15 and therollers 98'. This’
looped slack. portion L thereforejs'ervesas a re
extending shaft ‘5!. The jacksh‘aft-l'sl is sup
ported for rotation on the frame [6 by suitable
front and‘ rear brackets 52.
' '
ceiver for the beets or other crop coming over
-10 ,the rear end of the conveyor 41. However, as
A wagon elevator unit, indicated in its entirety
V. by the reference numeral 60, is carried at the ‘
rear of the implement frame; It and-includes an...
upwardly and laterally outwardly‘ extending eler. p.
vator frame 6| comprising parallel sidebars 62 15
and 53, each carrying a bracketr?ll at itslower
end. The brackets 64 are apertured and pivotally
on the
jackshaft '5.l..; ..
sideqbars 62 and 6.3 and receivea shaft ?r'lron.
load being carried. This would not be the case if,
for example, the chain 10 were driven from the?
at2 its upperiend on. the sprockets 68v and at its
lower end. on sprockets 15 that are. ?xed. to. a
shaft ‘it which is disposed generally longitudinally
and supported for rotation on the frame It by
suitable brackets" or the .like. A sprocket TI is
?xed'to the rear end of the shaft 16 and receives
25 upper end.
In that case, the upper run would
be vibrated constantly in a. generally upward.
direction and would have a tendency to throw
the beets off the conveyor chain because, in such.
case, any momentary increase in resistance to
the rotation of the lower sprockets or the lower
portions of the chain would result in immediate
tightening of~~the upper ?ight or run; thus throw
longitudinal jacksh'aft 5L‘ Certain of the links
of._the chain'll‘l have outwardly bent sections ‘H
ing the beets or other crop off the machine.
A form of beet loader, embodying certain im
s'o'~_a's to provide» ?ights .to aid’ in conveying the
beets. upwardly. The'c‘onveyor or elevator 60 is
is alwayspresent when the chain 10 is being
driven, notwithstanding changes in the resistance
to movement of ‘the chain, 10 or changes in the
endless ‘conveyor or_ elevator chain 10 is supported
a driving chain 18 which extends laterally across
the rear of the machine and is'trained over a
sprocket 75 that is ?xed to the rear end of the
best shown in Figure 2, the length of the chain
10 and the sizes of the idlers 98’ and the driving
sprockets 1.5 are such that, even when the lower
?ightfor¢taut, there still'remains ample
clearance C between'the lower portions of the loop
L and the lower ?ight of the chain 10., Since the
chain ‘I0 is driven only at its lower end, by the
sprockets '15 which arerotated in the direction of
the arrow a, the crop receiving pocket or loop L
Brackets 66 are ?xed to: the upper ends of_ the
which sprockets 65 (Figure 2) are carried.
the longitudinal jackshaft 5|. As will be seen
particularly from Figure 1, this distance is ap
preciable and is somewhat greater than the width
of the elevator 41, whereby the upper run of the
elevator 10 hangs in a slack downwardly curved
mounted on theshaft 4! and receive the rear end
‘ of an elevator or conveyor chain 41 onto which
‘supported ‘for vertical adjustment by a pair of
provements over the form of beet loader shown
in the co-pending application identi?ed... above, is
shown in Figures 3, 4' and 5. Referring now to
these ?gures, the ‘beet loader of' Figures 3-5‘ is
screw-threaded rods 8| (Figure 2‘) which are con- 7
’ .nectedzbycranks 82 to the upper ends or a pair
7 indicated in' its entirety by the reference numeral
ii. értical' angles'83' that are ?xed at their lower
vIto'th'efre‘ar end of the frame' Hi. The angles 40 tafand is ‘adapted’ to be propelled“ by a. tractor 2
Q'S?al‘e. reenforced'by suitablevbracing 8.4 and as.
of vconventional construction. The ‘tractor, is
equipped; with a power lift unit 3 and a power
take-oft shaft 4. 'The' loader Ia includes a mobile '
brackets 88 that "are ?xed to the, side bars '62 and‘; .- . supporting frame H6 carried on'ground wheels ~
The fel’evator side bars 62' and 63jcarry’bump'ers‘
which comprise a'pair of rollers 81 journaled in
631"‘The . rollers 81: are so placed as to be; in a
position to engage thesides oi‘a wagon or truck
in_‘the.eventit is driven too'cl‘os'e to the'lo'aden;
This'prevents any damage to’the elevator chain
together at theirgfront and‘ rear ends by cross
‘The elevator 60 carries ‘front ‘and'rear' sides 91.
H’! by meansof an axle "H, 8 or therlike, The
frame H6~ includes a pair of longitudinally‘ex;
tending frame members 121‘ and" |22"connected'
members I24. The ‘crossi'memb'ers “I24 extend
laterallyvv to‘ the right and‘ are connected‘ with a
and‘92 '?xed: to the'inclined bars 62 and 63.,jan‘dl
9.1, rear bang-board‘ or‘pl‘ate. 93 which'is' fixed- to
third‘- generally longitudinally extendingjfralne.
member |'26- which; cooperating with’ the forward
- aspgir‘ozf‘ vertically extending‘angles 94'and95. 7
portion l~2-2a- ‘(Figure 4‘), forms a forward‘ hitch?
section IZ‘I'that is connected to the’ drawbar I'2'8'
?xedfa't the lower ends of‘the frame’ It.
'j" As-‘best shown in Figures 1' and 2,“ the ‘wagon. 5'5?
elevator chain 10- isnot‘driven from th'e'upper
end,_9a_sj in conventional. practice, ‘but is driven
frorn'the lower “end by the sprockets 15. ‘Nor
mally; the connections with‘the tractor power lift.
are such that‘ the shafts 5t and‘HSv are rotated in
a clockwise direction, as Viewed‘ from'th'e‘rear,
whereby the sprocket chain 18‘ moves to the right
‘ ' along its‘ upper" ?ight. vSince the sprockets T5"
are ?xedto the shaft ‘liijthey also/are rotatedj
inl'a clockw-ise‘ direction, ‘when viewed from' the‘
rear; and,’ as will be seen from Figure 2, this pulls
the-lbwer-run'oi the wagon elevator chain ‘H3 taut
while-‘the uppers-or crop receiving-d run is ‘slack.
'I-Zl1‘el_ielevator»6'9is prov-idedwith- a. plurality of '
" idlerkrollersl’?il which support the slack portions
oi theupper runof the chain 10. The left-hand
or generally horizontal ‘portion ofthe run is’ un-1
of the tractorxby a coupling pin I29‘;
i_' ‘
tA conveyor and» pick-up unitll‘35 is carriedjby.
the frame H6 between-the long'itudina-l' members‘
l2?! and I522‘, the unit I35 including a pair ‘of’ side
barsmt36- and I43] held inspaced; apart relationjby
suitable means, such; as‘ U-shaped' "cross braces‘
Mil (Figure 41);. A pair of bracketsf 1'38 ‘and ‘I39:
are ?xedi, respectively; to the frame'menibersfl'?‘
and I22 and pivotally support thé'rear ends of.‘
the side bars 136' and I31 through the medium of
across shaft 2H (Figure 4) to which the rear
ends of the» sidebars [-3-6 and I3"! are connectedv
I by suitable bearing brackets. The shaft .211‘
therefore serves as‘ the pivot axis about, whi'ch'the. '
pick-up conveyor unit ‘I35 pivots in, a generally
vertical direction between ‘the side bars, I2YILIand'
At the lower ends of' the side. bars. 1.35 and ‘[31
supported". for a spaoelthat extends'between the‘
are mounted a pair of ground éngaging'shoésld?
sprockets 15; and the "idlers 98’- which are‘ some-'‘
generally similar to rodiwee'der shoes»
What'rlar'ger than the, idlers -98"and are icarriedi‘on“ 75 each-shoe ‘being secured‘, as bybolt's‘, 't'othe‘lowér"
I503is disposed, the rod- I50 being, substantially
is trained over a sprocket 201'?xedto the forward‘
end of a shaft 208. that is :supported, in a gear,
case 209. Also mounted inthe gear case is axp'air:
square incross section and is similar to, the weeder'
rods. Guide plates 152 are secured ‘tot the front:
end of the shaft 208. and the other being secured:
end’ of the/associated side bar. " Each shoe ‘also.
includes, arotatable bushing I49 in which a'rod
ends of the side bars I36 and.l31 by anysuitable;
means: An elevator 0r conveyor chain 1 51 is sup-,
of bevel gears 2 I0, one being mounted on the rear"
to a transverse shaft 2I2 that .extends through
the‘gear case 209 and, at one end, ‘supportsa
sprocket 2 I3 and at the other end is connectedtby
universal joints 2I4<andan intermediate shaft.
ical rollers’, I 58iand at its upper end ondrive
sprockets ?xed vto the drive shaft I4I. . The rela-. 10 2I5 to drive atransverse elevator drive shaft 211-.
on which a pair of sprockets'2I8, over ‘which they
tionbetween the rod 1 50;and the chain vI 51‘ is sub-i
elevator chain I51 is trained, ?xed thereto. >The
Istantially vthe same as explained in‘ detail in the
elevator unit I35 iS,'as described above, adaptedto
co-pending _>application mentioned ‘above. ,7 '
be swung upwardly ,or downwardly ‘about ,the.
»_.__=T,he front end of the conveyor and pick-up
unit~l35 is raised and lowered-relative to the 15 shaft 2I1 as a pivot in order to raise and lower.
the front end of the loader.
I .1
.. ;:
r 5
frame ‘H6 by means of vajrockshaft I6I supported
As best shown in Figures 3 and 4, a. sprocket
in brackets carried on vafront cross‘braceql64y
ported at its lowerend on_a pair of hardened con-‘
chain 225 is trained over the sprocket '2I3 on
the shaft 2I2 and over a sprocket 226 supported
I65 and I66 act through apair of linksI69, con, 20 for, rotation by 'a bracket 221 on the front por;
tion of the loader frame II6. Preferably, the
nected at their lowerends to‘ the side bars I36
sprocket 226 is carried on ashaft 228 which is
andT I531; to raise’ and lower the front endv of the
connected through a'telescopic shaft section 229
conveyor and pick-up unit I35. An actuating arm
and universal joints 230 to drivethe rod ~-I50I
I13 is also ?xed to the rockshaft I6>I and is‘con
nected by a link I14 to a hand lever I15 pivoted to; 25 (Figure 5). The rear end of the longitudinally.
extending shaft I 99 is provided with a slip clutch
the frame bar I22 and including detentmeans op
23I by which. a. sprocket 232 is driven. .A chain.
erating in cooperation with a sector I16. A bal
233 is trained over the sprocket 232 and vover a .
ancing spring I11 is‘connected at one end with
sprockfet 234 ?xed -_to the rear end of a .shaft
the-frame and at the other end with the hand
lever-I15. [Byrocking the hand lever in one di 30 235.. The shaft 235 carries drive sprockets'iover,
which a second elevator chain 236 is. trained at
rection or'the other, the front end of the loader
its lowerv end. The chain'236 forms a part of
may-be raised or lowered relative to the frame. -
A; pair of arms I65 and'I66 arecpnnected tothe
rookshafn-as by welding or the like,- and the arms ’
_‘ Thefront ends of the guide plates I52 are con
nected by a Uv-shaped cross member I19, and to
the forwardv end of each guide plate I62 is piv
oted an auxiliary plate I8I, the pivot being indi
‘ a wagon elevator .unit indicated in its entirety
by the reference numeral 231 and which is sup-l ‘
35 ported and arranged substantially like the wagon
elevator chain 10 described above in connection
withthe form of the invention shownyin. Figure
v1, and hence further description: is not believed
to be necessary, except to point» out that the.»
Withthe arm I65 or I66 associated therewith
whereby, when the front end of the beet‘loader is 40 chain 236 is supported by idler rollers. (not
raised, as for example, into a transport position,
shown), and by sprockets on the shaft. 235 and.
cated at I82. ‘The rear end of each of theaux
iliary guide plates I8I is'connected by a link I83
the; front end of the auxiliary plate I8I which is
on’ a shaft journaled at the'upper, end. of the
pivotedj'atIBZ tothe associated: guide plate 152 is
raised- faster thanthe rearrend, since the latter-i
wagon elevator ‘frame 238 (Figure 3), together‘
with a pair’ of relatively large idler rollersi239:
at a point much closer to the pivot of the'rock
mounted on a shaft 240, substantially in the same
position as the idler rollers.98' of Figure 1.1 The
is connectedthrough the link I83 to the arm I66
idlers 239 are spaced fromthe sprocketsonthe
raised into a ‘transport position, the auxiliary
guide plates I8I.fold downwardly relative to the
shaft 235 a distance such that, the upper run
row into the loader. ‘
I51, is augmented by a rear bang-board MI and
of the chain 236 being loose, the chain 236
main guide plates I52. In this way, the front 80 hangs in a loop L’ which receives the beets in
end of the beet loader can be raised much closer
the same manner as the loop L shown in Figure
to the cross brace I64 than would otherwise be
1. In this form of the invention the loop L',~
the case yet the auxiliary guide members I8I
serving as a receptacle to receive the beets coming
serve effectively to guide the beets from the wind
over from the upper end of the elevator chain
The tractor 2 carries the power take-01f shaft
r a side plate '242 (Figure 4). The portion of the
4, mentioned above, and the latter is connected
lower or left end of the chain 236 that fastens
by a universal joint I86 with a short shaft I81,
over the sprockets on the shaft ‘235 is enclosed
the rear end of the latter being connected by a
by a curved generally longitudinally extending
universal joint I88 to a telescoping shaft I89 sup 60. plate section 243.
ported in bearings I9I and I92 carried on the
While Iv have shown and described above the
main frame of the loader. The telescoping shaft
preferred structure in which the principles of
I89 is connected by a universal joint I93 with a
the present invention have been incorporated, it
longitudinal drive shaft I94, the rear end of which
is to be understood that my invention is not to
is supported in a bearing I95. A sprocket chain 65 be limited to the particular details shown and
I96 is trained over a sprocket I91 ?xed to the
described above, but that, in fact, widely differ
rear end of the drive shaft I94. The chain I96
ent means may be employed in the practice of
is also trained over a sprocket I98 (Figure 3)
the broader aspects of my invention.
?xed to the forward end of ‘a longitudinally ex
‘What I claim, therefore, and desire to secure
tending shaft I99, the forward end of which is 70 by Letters Patent is:
journaled in a bearing supported by a bracket
1. A loader for beets and the like comprising‘
20I fixed to a cross bar of (the loader frame II6.
a first, conveyor supported in a downwardly and
forwardly extending position, a second cross con
A chain 205 is trained over a sprocket mounted
on the front end of the shaft I99 and connected
veyor disposed in a laterally outwardly and up
thereto through a slip clutch 206. The chain 205 75 wardly extending relation with its lower end (115- ‘
2,494,62 9
posed rearwardly of the upper end of?- said ?rst
carried‘v thereby in spaced apart relation, a- frame
conveyor, rotatable.- means supporting the upper
section pivoted on- one of‘ said shafts for gen
erally verticalv adjustment and extending‘ in a
andi'lower' ends of: said second conveyor, a trans
verse shaft.’ for driving, the?rst conveyor, a longi;
tudinally disposed shaft, for driving the cross
conveyor, a bevel gear set connecting‘ the front
end ofv ‘said longitudinal shaft with one end of
said; transverse shaft, a power’ connection for
driving. the forward end of said' longitudinal
direction. generally‘ away: from the other shaft,
rotatable: i-dlers supported on said frame section
and‘ on said one shaft; belt driving means‘ ?xed
to: said other shaft, a conveyor belt supported
on said driving elements and’ said idlers, the‘p‘orc
tion of‘ said‘ belt between the’idlers onsaid one
shaft, and‘ means deriving power from the ‘rear 10 shaft ‘and said driving elements being unsup-v
end of’ said longitudinal shaft fo-rtdriving the ‘
portedl so as tohang therebetween in a generally
lower rotatable member of said conveyor sup
downwardly vextending material-receiving loop;
, porting means, whereby the portion of the: cross
and means for driving said‘ other‘ shaft so as‘ to
conveyor‘ immediately rearwardly of said ?rst
rotate said driving elements: and actuate the :
conveyor hangs in a generally downwardly ex
conveyor belt by drawing" the lower‘ ?ight there
tending looped portion to serve as a receiver for
of taut and. feeding‘ the belt into said ‘loop;
theerop- delivered thereto bysaid ?rst conveyor.
2. A- loader for beets» and the- like comprising
a supporting frame,v a ?rst conveyor supported
thereon in adownwardly and‘ forwardly extend
ing position, a second cross conveyor comprising
a- pair of generally longitudinally extending
shafts supported
spaced relation
for rotation
and disposed
on- saidrearwardly
of and generally laterally outwardly beyond’ the
whereby said loop- is retained between said; shafts
notwithstanding any irregularities in the resist‘
ance to movement of the belt, said» driving‘imeans
' comprising‘ a power connection with the‘forward
end of said» one shaft, ‘and means de?ning“ a
power transmitting connection between the‘ rear
end of said one shaft and the- rear end} of the
other shaft to which said belt driving means
opposite sides ‘of said ?rst conveyor, arr elevator
41. A loader for beets and the like comprising a
frame section supported adiustably on said frame
and‘ pivoted‘ at its lower end on one of: said
shafts ‘and extending generally away from, the
other shaft, supporting'i'dl'er rollers. mounted for
rotation on. said‘ elevator section and‘ including‘
idler“ rollers at» the- upper end‘ of the latter and;
first conveyor, a second cross conveyor disposed
idler rollers on said one shaft, drivesprockets
carried. on said other shaft, and a. conveyor belt
in a laterally outwardly and upwardly extending
relation with its lower endv disposed rearwardly
, of the discharge end‘ of said‘ ?rst conveyor, rotat
able means supporting‘ the‘ upper and lower ends
of said second conveyor, a transverse shaft for
driving the ?rst conveyor, a longitudinally dis
posed’ shaft for driving the cross conveyor, a bevel
having its upper ?ight: supported vloosely on said 351 gear set connecting the front end of said longi
idler rollers and‘ said drive sprockets, said belt
tudinal shaft withv one end’ of‘ said transversev
being unsupported between said~ shafts whereby?
shaft, a power connection for driving the‘ for‘
a. depending loop is, formed in the upper ?ight
ward end‘ of said longitudinal shaft, and meansv
of said belt in the; portion of“ the belteimmediately
deriving’ power from the rear end of said longi
rearward-1y of said ?rst conveyor so as to serve‘v it" tudinal shaft for driving the lower rotatable
as- a receiver for material discharged from the 7 member of said conveyor supporting means,
rear' end‘ of said, ?rst conveyorr meansi'or 'driv->
whereby the portion of- the cross conveyorri'ma
ing: both of said conveyors, including means- for
medi'ately‘ rearwardly of-‘said ?rst conveyor hangs
driving: the cross conveyor ma direction to feed‘
in a generally downwardly extending loopedj por- - '‘
theheltinto saidlloop-
a ‘31. In as beet. loader- orv thev liker an elevator;
comprising supporting meansr a; pair‘ of shafts
a tion to‘ serve
as a receiver for
the crop‘ delivered
thereto by said ?rst conveyor:
' I
Без категории
Размер файла
914 Кб
Пожаловаться на содержимое документа