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Патент USA US2132955

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Oct. 11, 1938.
E. T. JOHNSON
2,132,955
OVERBAND FOR TRACTION WHEELS
Filed April‘. 24, was
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A TTORNEYS
Patented Oct. 11, 1938
l 2,132,195"
UNITED STATES PATENT ‘OFFiCEQ
2,132,955“ 4'
ovERBANn For. TRACTION WHEELS,
Ellsworth T. Johnson, Molina,‘ ‘111., ‘assignor to
Deere & Company, Moline, 111., a corporation
of Illinois
;
Application April 24, 1935,]seria1 no. ‘17,897,
‘
113 Claims.
(01. 's01_39) ‘
The present invention relates generally to
traction wheels and the like, such as those em
of‘ the traction wheel lugs sofas to hold the
‘transportrim in place when it is tightened
ployed in tractors, harvesting machines and the around the lugs, and a‘further. object of the
like, either for driving a vehicle or for driving present invention is the provision of attaching
5;; mechanism carried by the machine.
means cooperating vwithlspade lugs having lat
Usually traction wheels and the like are pro
vided with lugs or grousers to furnish and in
crease the traction and to prevent the wheel
eral openings therethrough to receive a portion
of the attaching means and operable when
tightened, to clamp the overband means in po
from slipping relative to the ground surface.
sition.
, However, when the machine or tractor is oper
V
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A further object of the present invention is 10?
the provision of an overband structure which
. ated or'moved along surfaced roads and high
ways, the use of lugs and grousers is usually ob
jectionable on account of the tendency to mar
or penetrate the road surface. While grousers
are frequently arranged to provide 'a road en»
comprises two generally semi-circular members,
one being adapted to be disposed over the lugs of
one rowwhile the other ‘member is adapted to
be disposed over lugs of an adjacent row, where
gaging surface which is continuous sogfar as by, the members are spaced apart axially, but 15
lying in a cylinder is concerned, most. lugs, par-' their ends overlap so as to provide a continuous
ticularly spade lugs, tend to destroy the road road engaging surface.- By the use of a con-.
surface over which the machine‘ moves. ' Some‘ struction of this nature, various sizes of wheels
20 states forbid the'use of tractors and similar ma-l ' may be accommodated. and the. transport rim
chines ‘with spade lugs on pavements,'and in' members may be quickly placed in position with 2,0
order to meet the requirement of such-laws ‘and out lifting the'wheel oil‘ the ground. Also by
to provide for the satisfactory movement of ' such construction, various heights of lugs are
machines, such as tractors, harvesting machines. ~ accommodated, as when lugs wear down or new,
25 and the like having traction wheels, over sur-‘ andhigher lugs are installed. When the over
faced roads and highways, it has been proposed bands'tructure is mounted on the smaller lugs 25
to provide means in the form of road bands): the ends of,v the transport rim members merely
trans'port rims, overbands and the like vwhich overlapa greater distance than when usedon
are capable of being attached to traction wheels,‘ the larger lugs, or when used on a wheel of
30 _ usually to the rims thereof, 'so asto'pro'vide a'
somewhat greater diameter.
continuous smooth road engaging surface for
the wheels and to: keep the lugs and grousers out
.
These and other objects of the present in
vention will‘ beapparent to those skilled in the
of contact with‘ the road ‘surface.
art after a ‘consideration of the preferred con
The principal vobject 'of‘the'present invention struction illustrated in the accompanying draw
35 is the provision of certain new‘and useful im
ing, forming a part of this speci?cation.
provements in such road bands or transport‘
In the drawing:—
rims and the like,‘ and it ‘is the principal ‘object ‘
‘
1
,
<
,
Figure 1 is a side view of a traction wheel
of. the present invention to provide an arrange
embodying the principles of the present inven
ment‘ in which'the' transport rim means may‘ be tion;
7
40 easily and quickly attached and detached and V
Figure2 is a view taken substantially along 40A
will, at the same time, accommodate variations ,, the line 2-4-2 .01? Figurel and looking in the di
in the size of the lugs or diameter of the trac-, rection of the arrows;
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tion wheel ‘to which the transport rim means is
Figure 3' is a section taken along the line
secured. Speci?cally, it is an object of :the 3-3.of Figure 2; and
45 present invention to provide‘ a‘ transport rim ‘or
Figure 4Iis a section taken along the line
overband which is adapted to be mounted di-' 4-4 of Figure 3. ~
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rectly on the-‘lugs’ or grousers ofv a traction 7‘ Referring now to the drawing, more partic
wheel, and- a" further object of the present in-~ ularly to Figures 1 and 3, the wheel proper is
vention is the provision of attaching means re-_' indicated. in its entirety by the reference nu
50 acting against one or more of the traction'wheel
meral l and includes a wheel rim or tire sec
lugs for clamping the transport rim in place on ‘I tion 2 connected by spokes .3 to a central hub 5. 50
the wheel.
7
' The wheel rim or tire 2 carries two rods (Fig.
'A further object of'the present invention is‘ ure 2107f grousers or lugs 8 secured to the wheel
the provision'of a transport rim provided with
65. ' ?anges adapted to be disposed on opposite sides
rim 2'in spaced staggered relation. For pur
poses of‘illustratioml have shown, the grousers
2,132,955
2... .7
the ground. That is, one of the rim members
may be applied, the wheel rotated through sub
stantially a half revolution, and then the other
rim member may be similarly applied.
Attaching means of novel construction is em
8 in the form of spade lugs of the open pressed
steel type of inverted V-shape' formation pre
senting laterally directed open spaces and hav
ing bent sections 9 apertured to receive the bolts
l0 which secure the lugs to the rim 2.
While
ployed for securing the transport rim members
the present invention is not necessarily limited
in position over the lugs of the wheel, there be
to a wheel construction having’ lugs of this
type, I have preferred to illustrate the present
ing two pairs of such attaching means for the two
invention as embodied in a wheel equipped with
10 spade lugs for it is generally recognized that
spade lugs penetrate the ground without horse-T '
power loss and provide greater tractive ability
and freedom from slippage.
_
rim members, and since the clamping means are
of identical construction the description of one
A clamping bolt l5 has its head l5a disposed
at an angleto the main body of the bolt and dis
» posed in- one of the openings l6 formed in the
The transport rim construction, according ‘tol associated end of the rim member I l, and prefer
15 the principles of the present invention, is mount
ed over the lugs 8 and comprises a pair of sub
ably the principal portion of the bolt head |5a
is disposed below the road engaging surface of
stantially semi-circular rim~~ members H which" the transport rim so as not to break the smooth
7 are preferably constructed of channel iron having
a base or road engaging surface l2 and radially
continuity’ of the road engaging surface provided
20
by the transport road bands. The bolt 15 extends
generally i'n'the'same direction as'the rirn mem
Each of the transport/rim members H has some bers, approximately tangential with respect to
20 inwardly extending side or. marginal. ?anges l3.
?exibility to permit .the easy mounting ofthe
the rim 2 of the wheel I, and the bolt I5 is ‘of
members over the associated lugs, and when‘so
mounted in position the base. l2‘is of su?icient
25 Width to permit the ?anges vl3 to extend on op
posite sides of the radially outer ends of the lugs
'such length as to extend peripherally beyond the
end of the associated rim I I. The free end of the 25
bolt I5 is threaded and projects through aligned
holes provided in the adjacent overlapping arms
of a'pair of yokes or U-shaped clamping brackets
H, as best shown in Figures 2 and 3. The oppo
site arms l8 0f the central pair of 'U-shaped 30
brackets H are disposed substantially in abut
ting relation and are received within the lateral;
ly extending I open space“ of one of the wheel
lugs 8; and a nut I9 is'threaded onto 'the bolt I5
8,‘ whereby lateral displacement of the transport
rim members II is effectively prevented. A cen
tralplongitudinal groove- l4, facing radially out
so
wardly, is provided in the outer or tread surface
of the base l2, and the formation of this groove
establishes a radially inwardly facing ridge Illa
which engages the outer edges of the lugs .8 which
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. ..
‘so ‘that, when tightened, the‘ associated end of 35
In mounting the rim members] I , the‘ members the transport rim member. I l’ is‘held in'position
are disposed inzthe positions shown in Figures 1 on the‘ lugs 8. When the nuts l9 are loosened to
f and 2, one member- being mounted over approxie. permit the brackets 11 being detached from'the
mately, half of thelugs of one row,‘ while. the associated‘ lugs in the removal of'the overbands,
other member is mounted in substantially diam‘ it is to be‘noted that the brackets "l'llare s'tillj
40 etrically opposite relation- over. approximately fastened to the rim members Hv so that there
half of the lugs of the other row.
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is no danger of any of the parts‘ becoming lost:
By virtue of this arrangement; the. ends of the While I prefer to use a p'air'of attaching brackets
two transport rim'members overlap, as best shown for each‘ end of each ‘road'band half, a single
,_ the transport rim members embrace.
85
in Figure 2, that is, theends of, one ‘rim member
extend beyondthe plane of the ends of the other.
bracket may be used iiistead'of two, if desired; 1
‘ A clamping means; such as‘th’eone‘described
rimmember, thereby providing a smooth, contin above/is’ provided for each 'end of both of the
uous substantially cylindricalroad engaging, sur-, transport rim members‘ I I, 'and when all of the
face for the wheel I, permitting itsuse over, pave
bolts 15 are tightened,the “transport rim mem»
ments and surfaced roadsand highways.
50
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If there is anuneven number. of lug's’inieach
' row, the roadb'ands canrbe‘of the same .lengthand,
bers' II are securely fastened on the "wheel lugs; 50'
the ?anges l3 embracing the radially outer ends
of the lugs to prevent thetransport rims ‘from
substantially identical, but ifj-there is an. even slipping laterally off the lugs 8 while the clamp
number of lugs in each.row,_as,illustrated, the, ing means themselves serve to prevent endwise
two bands are. preferably not quite the?same. or peripheral displacement‘ of the'rim' mem-'
55 length, one beingmore than a half. circle and "the
other slightly less, with an overlap?at eachend
It‘ will be noted from'Fig'ure 4 that the grooved
bers
of the order illustrated in Figure
bands could, of course, be made exactly the same,
length, but this would, cause a somewhat/greater
60
amount ofoverlapthan wouldbenecessary: In
any event, whether with an ,even‘or an, odd num-l
ber of lugs,,at least one of theroadbands extends
for slightlymore than
180°.‘
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The road-N section M of the transport rims is'seated firmly
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against the ends of the lugs so that there is no
tendency forthe transport rims to’ bind’ upon or
break the ends of the lugs.
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While I have shown and described above the
preferred structure in which- the" principles of
the present invention have been embodied, it is to
be understood that the present invention is~not
to be limited to the particular detailsishown and
commodated, ,When mounted over thesrnaller; described, but that, in fact, widely different means
sizelugs or lugs thatg-have worn down, or on, may be employed in the practice of theibroader
By providing, an, ,overband construction'asj__a
split ring or as two sections, wheelswof different.
diameters or di?erentiheighthsiof‘lugs; are ac‘
wheels of smaller diameter, the ends of the, trans?
port,_rim members,“ merely overlap a greater:
distance than when used onthe larger'lugs’or
wheels of, somewhat greater diameter. Another.
aspects
What of
I claim,
'my?invention.
therefore,‘ and
‘
desire
r‘ I V to V secure
_
70 "
by1.Letters
The combination
Patent, is:—,
with a traction
'
‘wheel
r , e hav
advantage of employing a transport rim construe; ing at least two rows of generally radially, extend:
tion having separable sections lies in the ability inglugs, of at least tworoad bands, each con
?i’to army the same without-lifting the wheel 'oif' sisting of a generally arc'uate member, one band
‘
3.
‘ 2,132,955
being disposed over .and- acting against the ‘radi
placement ‘on: said: lugs‘ when the band. isheld
ally outer-ends of a plurality of lugs of one row
and'the other band being disposed over and, act
circumferentially on, a wheel but are su?iciently
narrow so that‘ said band is‘ ?exible and can be
sprung in applying it over the :lugs on the wheel
and is, adapted to accommodate variations in di
ing agamst the radially'outer ‘ends of arplurality
of: lugsof the other row generally diametrically.
opposite to- said l?rst lugs, the adjacent .ends of
said bands‘ overlapping to provide in effect a con-‘
tinuous cylindrical road engaging surface“ for
said wheel, and means acting betweenlthe ends. j
' i of the bands and the‘adjacent lugs for securing
each of said, bands'inposition .on said wheel‘;
2. The combination with a. traction wheel hav
ing at least two rows of generally radially ex
tending lugs, of a pair of road bands, each con
115. sisting of a'generally semi-circular member, one
ameterof the latter, and circumferentially act
ing fastening’means for securing the ends of the
channeled member to said wheel.
6. In a road band construction for traction
wheels and" the like having lugs, a generally arcu~ 10
ate channeled member having radially inwardly
extending ?anged margins spaced apart laterally
so as to clear the laterally outer edges of said
lugs and adapted to be clamped, against and em
brace the radially outer ends. ofisaid lugs’, said 15
channeled member having a central depressed
band being disposed over and embracing‘thejradi
ally outer ends of a plurality of lugs of one row ' portion engageable with the radially outer ends
and the other band being disposed over and of" said lugs and serving to maintain the re
embracing ‘the radially outer ends of a plu
mainder of the channeled member normally out
20? rality of lugs of the other row generally diametri
of contact‘ with the corners of said lugs, and at
cally opposite to said ?rst lugs, the adjacent ends taching means carried by the end portions of
of said bands overlapping to provide in e?ect a . said channeled member for fastening the latter
continuous cylindrical road engaging, surfacefor to the wheel.
'
said wheel, and meansat each end of each band,
7. In a road'band construction for traction
. reacting in a generally circumferential direction
wheels and the like having lugs, a generally arcu
against certain of the lugs of each row other
than said plurality of lugs for tightening the
ate channeled'member having radially inwardly
extending ?anged margins adapted to be clamped
_ bands, respectively, against the radially outer
against and embrace the outer ends of said lugs,
,said channeled member also having a central de
ends of the lugs on saidvwheel.
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3. The combination with a traction wheel hav
ing at least two rowsnoi generally radially ex
tending spade lugs, each having a lateral open
pressed portion forming a peripheral groove, and, 30
attaching means carried by the end portions of
~ said channeled member, said attaching means in
ing extending therethroughvtransversely of the cluding a bolt disposed in an aperture in the
wheel, of a pair of road'bands, each consisting of central grooved portion of said channeled mem
a generally semi-circular member, one band be ber having ahead seated in said groove so as to
ing disposed over a plurality of lugs of one row lie substantially flush with the road contacting 35
and the other band being disposed over a plu
surface of said channeled member, and a pair of
rality of lugs of the other row generally diametri
yoke members adapted to engage one of said
cally opposite to said ?rst lugs, the adjacent ends wheel lugs and having apertured end portions,
40 of said bands overlapping to provide in ‘effect a
continuous cylindrical road engaging surfacefor
the threaded end of said bolt being adapted to
be received and to react against said apertured 40
said wheel, bolt means carried by the ends of each
end portions.
of said road bands and extending generally along
.
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8. The combination with a traction wheel hav
the periphery of the wheel, and means connect
ing arrow of generally radially extending spade
ing each of said bolt means with an adjacent lug ' lugs, each having a lateral opening extending
and including a member receiving the threaded , therethrough transversely of the wheel, of a road 45
-
end of the associated bolt and having a portion
disposed within the lateral opening of the lug
and reacting .thereagainst for securing the asso
band consisting of a generally semi-circular
member, bolt means carried by each of the ends
of said road band and extending generally out
ciated band in place on the wheel.
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wardly therefrom in opposite directions along the
4. A transport rim construction for traction periphery of the wheel, and means connecting
wheels and the like having lugs, said transport each of said bolt means with an adjacent lug
rim construction comprising a pair of substan ‘andincluding a part extending into the lateral
tially semi-circular channeled members adapted opening thereof for securing the band in place
to be secured over said lugs and including gen
erally radially inwardly extending ?anges adapt
~ on the wheel.
9. In a road band construction for traction
55
ed to be disposed on both sides of said lugs and wheels and the like having lugs,‘ a generally arou
acting to hold said rim members in lateral posi- , ate channeled member having radially inwardly
tion over said lugs, said channeled rim members extending ?anged margins adapted to be clamped
having some ?exibility and being adapted to be
mounted on said wheel in'laterally spaced rela
tion, axially of the wheel, whereby the ends of
said rim members overlap to a greater or less
extent, accommodating wheels of various diame
65 ters, and two pairs of members‘extending in op
against and embrace the outer ends of said lugs,
60
and attaching means carried by the end portions
of said channeled member,said attaching means
including a bolt disposed in an aperture in said
channeled member, and a pair of yoke members
adapted to engage one of said wheel lugs and
posite directions and connected, respectively,‘ having apertured end portions, the threaded end 65
with the ends of said rim members for clamping of said bolt being adapted to be received and to
the latter tightly aroundthe associated lugs.
react against said apertured end portions.
,
5. In a road band construction for traction
10. A transport rim construction for traction
70 wheels and the like having lugs, a generally semi- , wheels andthe like having lugs, said transport
circular shallow channeled member adapted to rim construction comprising a pair of members 70
be applied over the lugsv on a wheel,_ said chan- ‘ adapted to be secured over and in contact with
neled member having radially inwardly directed said lugs, said rim members having some ?ex
?anges that are arranged to embrace the sides of ibility and being adapted to be mounted on said
75 the lugs and hold the band against lateral'dis
wheel in'laterally spaced relation, axially of the 78
4
2,132,955‘
wheel, 'the lengths of ‘said members ‘being such‘
to the fastening means dffthe other band when
that the ends of said rim members overlap to an
extent, su?icient to- accommodate ‘wheels of Vari-r
ous diameters and wear of the wheel lugs, and
two pairs of members extending generally cir
both bands are in place on the wheel, and means
cumferentially in'opposite directions,nsaid mem
bers reacting against said wheel and connected,
respectively, with the ends of said rim'members
for clamping the latterrtightly against the asso
10 ciated lugs in spaced relation with respect to the
wheel.
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.11. The combination with a- traction wheel
having at least two rows of generally radially
extending lugs, each having a lateral opening ex
15 tending therethrough' transversely of the wheel,
of a pair of roadbands, each consisting of a gen
adjustably connecting each of said fastening
means with an adjacent lug and having a part
disposed in the transverse opening of the latter.
12. In a road band construction for traction
wheels and the like having lugs, a generally cir
cular channeled member having radially inward
ly extending flanged margins adapted ‘ to be
clamped against and embrace the outer ends of 10
said lugs, and attaching means carried by the
end'portions of said channeled member, said
attaching means including nut and bolt means
and a yoke'adapted to be adjustably connected
to each end of said channeled member by said
nut and bolt means and, adapted to engage one
ef said wheel lugs.
13. In a'road band construction for 1traction
wheels and the like having lugs, a generally arcu
erally semi-circular member, one band being dis
posed ‘over and embracing the radially outer
ends of a plurality of lugs of one row and the
20 other band being disposed over ‘and embracing ate channeled member'having radially inwardly 20
the radially outer ends of a plurality of lugs extending ?anged margins adapted to be clamped
of the other row generally diametrically opposite , against and embrace the outer ends of said lugs,
a to said ?rst lugs, the adjacent ends of said bands‘
30
said channeled member alsonhaving a central
depressed portion forming a peripheral groove,
overlapping to provide in effect a continuous cyl
indrical read engaging surface for said wheel
and said bands being held against lateral dis
placement by virtue of embracing said lugs, fas
tening ‘means carried by the opposite ends of
each of said roadbands and extending generally
and attaching means carried by the end portions 25
of said channeled member, said attaching means
seated in said groove so as to lie at least partial
ly below the rod contacting surface of said chan
neled member and adapted to be connected to
along the'periphery of the wheel, the fastening
certain of the lugs on the wheel.
means of one band being'disposed adjacent but
extending in the opposite direction with respect
ELLSWORTH T. JOHNSON.
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