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Патент USA US2132545

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Oct. `ll, 1938.
c. D. SMITH
2,132,545
MOTOR VEHICLE CONSTRUCTION
Filed March 25, 1935
2 Sheets-Sheet 1
' l
ATTORNEYS
Oct. ll, 1938.
Q_ Q_ sMlTH
2,132,545
MOTOR VEHICLE CONSTRUCTION
Filed March 25, 1935
` ,5,5
e
,54
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2 Sheets-Sheet 2
05
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INVENTQR. „
ATTORNEY.
_, 2,132,545
f mancava-"laissa
PATENT - ’OFFICE
l* i
_ ` Í " i. Moron
,
„ VEHICLE
".`:e_,_1v:iz,_54s_„„Cons'muc'rron
_ _
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«
Charles D. SmithfAlma, Mich., assig'nor, by mesne'
1 assignments, `to Alma Motor Company; St.
, Louis, Mich., a__corporation of lvlichigany
.
l ’The‘presentdnventionrelates to motor @vehicle of> the `excessive lnoise and 'wear iattendantï upon
' construction",l particularly though not 'exclusively _
__ _ adapted ‘for the construction of motor- vehicles
` in which-"the forward _steering wheels 'are' also
the operation‘of themechanism and also because
ofy power losses‘which necessarily resulted from
suchconstruction.`
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` 5 power driven. Suchvéhiolesmaybeï'ofthe?so#
f" ‘It is; thereforaan object of `the present inven-`
called» “iront 'j wheel` l drive”> `type iin" which vthe
‘ tionto provide a motor vehicle construction in
« ‘ frontA wheels only are" power drivenf- and provide" which _an articulated power driven wheel is
` the tractive effort‘ïbyswhich 'the vehicle ' is moved. mounted on a driving“ shaft in such a mannerv
‘* ` Such `vehicles also maybe of the¿rs"o_-'c"alle"d"‘four . thata'limited sliding movementy of the wheel` 'ï
10
l0 wheel drive” type in which the front wheels and relative to l’the-shaft is permitted to absorb thrusts
the rearïwheels all 'are power driven- and cooperate attendant upon the-transmission of4 powerto the
power driven wheel.
to furnish-_the 4t‘nicnv'e"effrfirt required remove the, articulated
‘QA further object of the invention is to provide a
`
several known types, as for example those in whichA
y '
_ vehicle. `Such. _“four wheel drive” vehicles are of _
15 al1; ofthedrivin'g wheels are‘driven from >aicentral
, motor vehiclein which articulated’ 'driving wheels
y
are connected with a swinging i driving shaft 15
‘ power source by separate shafts running to each'lof" .which is' driven from a ilxed'x'otating drive'shaft
thewheels; those in _which the >front and rear axles
_fare 'driven respectively _by‘ïiorwardly and rear#
through îsuitable universal'joint connectionsand >
in whichthe center» oi’ pivotalfmovement in «the _
`
' wardly ‘extending drivelshafts'lifand thós'ein which rvuniversal‘joint is substantially> coincident -with "7*
20 the ‘frontdrivingf wheels may; be selectively power the point of swinging movement of `the articu 20
_ driven "as `more particularly described inv a co
lated driving Wheels.'
`-`pending'v application” for United States Letters
Patent for #Vehicle driving mechanisnr’V tiled by
_
_, f - applicant and Frank W. Ruggles. ‘
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. ` Another object of thcl invention isl to provide a
motor -jvehicle'construction `in which the articu
latedv driven »wheels may be `selectively connected
>and disconnected from the power driving means, "25 7
f @The presentfnvention possesses utility riii ` con
25
` v
nection 'with each of theàbeforementionedgtypes
`of v_vehiclesïandniayfbe used veltherïwith vehicles
thus Ápermitting the vehicle’to be 4operated either
~ e
as'fa >four uwheel drive or a twokwheel drive vehicle', f
and as :a two? wheel power driven vehicle `to have - `
the power driven wheels either
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' 30 drive’ß‘ some of which have Ybeen previouslyrnen the rear oftheïvehicleitioned solely by way'of example. _'I'he'referen'ces . It"vv is a furtherl object to provide a motorl ve
Í hereir‘rto` vehicles _of these two 'classes vare -tolbe- ‘hiclef construction vin 'which theädriving mecha-è
, .understood solely as being for purposes of exainple nisx'n normallyiu'sed todrive thefrear drive axle is
connected with auxiliary means which in turn are 1
The
`used‘in
’ connected> to a power driven‘front axle which may
vehicle
notpif4
construction
bysent
wayinve‘ntion‘also‘.
oi limitation;
*where an
" m'ayjbe
yarticulated“move-V
~ ’ ' 'ï ~ any
`
35 ' and
Vbe selectively engaged" or disengaged from the
power driven auxiliaryjmeans" so as to operate `
ment of a power drive'nïwheelrelative tothe driv
ing connection with"`the*wheelmay "be desired.
The 1foregoing " examples ' are, _exemplary ` of ‘~ 'the
0‘ fields 'iii -"which ‘the present‘finvention .possesses
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the ïvehiclefeither asa 'four wheel drive vehicle or '
as a. two-wheel drive vehicle.
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f Í~A" further object `of the invention is to provide 40
utilityfbut 'in laddition thereto‘itis to b'eunder»` ‘a ‘motor vehicle `consi'jruction’ _in whichv'a simple
stood >that any articulated driving wheel such asv » and comparatively 'inexpensive unit is provided in
>an articulatedjpower 'driven’rear wheel is within
the scopeof the present invention.
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the -form of a'power. driven-front axle -and'a
power take-oiI-’member which «may `be attached'
_
ï I` have discovered `thatgtlie rigid connection = of
an `f articulated ldriving >wheel `to a power rdriven
to a motor vehicle oi.' conventional designy and 45
convert such'vehicle into a. selective vtourr wheely `
shaft results inthe transmission‘of severe thrusts
drive vehicle. ’
causing l excessive _wear 'inr 'the connecting means, . x
such'for example as ‘universal `Joints which'fmay
i
`jects of this invention willìappear in _i
the 'following'description and appended claims,
, Other ’o
y¿x50 be vemployed to drive the shaftconnect'ed witliîthe reference being had to the accompanying` drawf
articulated wheelrf'rom an axle drive'shaft. `-~'Prior _
ï
ings forming a part of this speciñcation Awhers'eîn '
to the present invention _attempts hadbeeen made " like
reference characters designate correspond
to construct mechanisms lfor the driving of articu-A
lated ’driving wheels in ‘which ysuch thrusts were . ing parts in the several views,_
55 carried into.'` the axle mechanism -andwereïab
sorbed/byf‘an angular movement of'fthe'axle driv
, Fig. 1 isa fragmentary view inside elevation,
y partially in section, of a motor vehicle construc
` ing shaft and by‘wearfin’` the universal joint used tion embodying‘the present invention.„ _
Fig. 2 isa fragmentary view, partially in` sec
tcf'oonnect the' axle' drlvingfshaft‘ and the stub
shaftv used for driving theïarticulated- Wheel.
tion, showing the power driven axle and articu
50 Such constructions were not satisiaçtory because
lated power driven wheel assembly. In this em
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2,182,545
Fig. 3 is a sectional side elevation of the gear
to the rear axle differential in the usual manner.
’I'he transfer gear box I9 contains a creeper
gear 34 (Fig. 3) which is slidably mounted on
box and the drive transfer box shown as being
mountedon the motor vehicle shownin Fig. 1.
the splined shaft section 23, the hub of said gear
beinggrooved as at 35 to `accommodate a collar
Fig. 4 is an end ‘view in reduced size of the
36 to which a shifting lever'31 (Fig. 1)'i's con
nected in a conventional manner. Bearings 3B
and 39 Yrespectively are mounted in the transfer
lgear case I9 and an intermediate shaft 40 is
, bodiment the assembly is shown as the front axle
assembly of the motor vehicle shown in Fig. 1.
gear box shown in Fig. 3.
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Before explaining in detail the present inven
tion it is to be understood that the invention is
not limited in its application to the details of con
struction and arrangement of parts illustrated in
journaled therein,‘a gear 4I being formed integral
with the shaft and a gear 42 being mounted on
the accompanying drawings, since the 4invention ' Vthe splinedV section 43 of said shaft, said gear
is capable of other embodiments and of being
practiced or carried out in various ways. Also
15 it is to be understood that the phraseology or
terminology employed herein is for the purpose
of description and not of limitation, and» it is
not intended to limit the invention claimed here
in beyond rthe requirements of the prior art.
20
Referring to Fig. 1, there is shown aY conven
tional motor vehicle equipped with a front power
driven‘axle II and a rear power driven axle I2,
upon which are mounted the frontV and yrear
ground-engaging Wheels I3 and I4 respectively.
25 A fabricated frame I5 is supported on springs
mounted on the axles according to v_conventional
construction. The motor vehicle is provided with
a transmission mechanism I6 which is operatively
connected in conventional mannerwith the en
30 gine (not shown). The transmission I 6 is pro
vided with a gear vshift lever I1 for `selectively
shifting the gears contained therein to secure
desired speeds therefrom. In the construction
herein shown, the frame is supported on `trans
35 verse leaf springs Ywhich extend on lines sub
stantially parallel to the axles. It is to be un
derstood, however, that the longitudinal leaf type
of spring may be used in accordance with con
ventional practice in the construction ,of such
40 vehicles. Where the transverse spring construc
tion is used, a front supporting frame `or wish
bone member I8 is provided which connects with
the bracket I8a secured to the frame of the
vehicle at a point directly adjacent the transmis
45
sion mechanism.
s
Atransfer gear case I Sis secured to a transverse
ly disposed cross member 20 which forms a part of
the vehicle frame. The main drive shaft 2l ex
tends from the transmission I6 into the transfer
50 gear case I9 andlis journaled »in a bearing 22
(Fig. 3) provided therein, the shaft 2I being
splined as shown at 23,> and for a purpose to be
presently described the extreme end of the shaft
is reduced in size and is journaled in a bearing
55 24 which is mounted in a gear 25, said gear being
provided on the endv of the drive shaft section26
which leads to the rear axle, the hub of the gear
25 being journaled in bearings 21, and a bearing
60
42 meshing with and being driven by the creeper
gear 34 when vthe saidgear is shifted to a pre
determined position for engagement therewith. 15
The gear 25 has both internal and external
teeth, the internalk teeth 44 meshing` with the
-teeth of the` creeper gear 34 when said gear. is
shifted into position for `engagement therewith.
The external teeth 45 of the-gear 25 mesh with 20
and drive the gear 4I, said gear -4I in turn mesh
ing with and _driving the gear 46 whichis mount
ed on the clutch shaft 41 which is'in turn jour- i
naled in bearings 48 @and 49 respectively provided
in: the transfer case I9. The front end of the
clutch shaftis turned and an end plate 50 forms
a closure for the vopening in the case, oil rings
5I being provided toA prevent the >escape of lubri- '
cant‘from the interior of the case I9.
A dogV clutch 52 is slidably mounted on the 80
clutch shaft 41 and is shiftable into and out of
engagement with the clutch `'shaped end of the
gear 46,.said'clutch'beingshifted by means of a
lever 53„(Fig. 1) which extends to a'posi'tion
directly adjacent the driver's seat, al collar 54
being mounted in the groove 55 s_o that the con
ventional shifting hook-up between the Vshift
lever 53 and the Aclutch Á mechanism may be
utilized.
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A front axle propeller shaft 5B (Fig. 1) is oper 40
atively connected to the front axle differential
and to the clutch shaft 41 in the transfer case
(Fig. 3). so that the front axle may be positively
driven by power passing through the transfer
case I9. This construction is such that it will 45
be noted that the front axle propeller shaft 53 is
drivenat the same speed as vthe rear axle pro
peller shaft 33 but may be engaged with .or dis
engaged from the power driven transfer case by
operation of the clutch 52.
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50
Universal joints 51 and 58 are provided at the ,
ends of-the front- axle propeller shaft 55 and
provide the necessary flexibility for driving theV
front axle from the gear transfer case vvI9. The
propeller shaft 56 which drives the front axle 55
operates in substantially the same manner and
at the same speeds as the rear axle propeller
, shaft.
28 which is mounted in the transfer gear case I9.
A bearing adjusting plate 39 (Fig. 3) is pro
The transfer gear case I9 is preferably formed
vided on the end of the bearing .39 andan ad
in two sections, being split on the» line 29 and
secured togetherby means of bolts or similar
securing means 30 in accordance with preferred
conventional design.
In the arrangement of
65 parts here shown, the gear box is placed at an
60
justing stud 6I is mounted in the end wall of the
transfer case, said stud bearing against said plate
to adjust and take up thebearingwear.
Y It will, of course, be obvious that the gears ln
thetransfer case I9 are subject to all of the trans 65
mission speeds and that the ratios of the gears
angle of greater than 90° to the shaft 2l. Where
such an arrangement of parts is used, the shaft in the case provide for further reductions in speed
2I is preferably connected by a universal joint ' beyond that afforded by the conventional trans
on each end with the driving and driven shafts. mission. The present design is such that a creep
70 If but one universal joint is to be used with said ing speed of as low as approximately eighty-four 70
shaft, the gear box must be mounted on a line to one can be provided if desired by the use of the
creeper gear 34. The power lapplication to both
extending at right angles to said shaft.
A universal joint housing 3| (Fig. 1) is secured the front and rear axles is identical yand is
to the flange 32 (Fig. 4) of the housing and a through the gears in the transfer case, the rear
75 torque tube 33 encloses a drive shaft which leads axle being drivenV at al1 times when the engine. 75
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2,132,545
clutch and transmission gears are engaged, while
ythe angular movement of the axle 14 relative `
thereto which ils 'caused by the‘swinging move
>vrnent‘of
the wheelandih’ub assembly'as above
clutch 52 is‘engaged.
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described.
`Thefuniversal 'joint' 9| in the present
When the gearsare in‘the ’positionf‘as shown Yin
Fig. 3 of the‘drawings,` the power Vapplication construction is >`so mounted 'that the center pivot
> the front axle'is driven selectively whenever'\the
5
point is directly4 aligned with the `king pins '88
26 which drives the rear'la'xle. `Thisfprovides for which‘form thepivot points yfor the swinging
one gear ratioe'beyond‘the transmission.' In this . ‘ofthe wheel and 'hub‘ assembly. The construction
driving .relation of the ï"g'earsï itf‘will bev noted of wheel and hub assembly just described permits
10
that the `gear 4| meshes with' and drives the gear
46 vat the 4same time and at .the »same -speedas
the gear 25 is driven. They gear 464 being mounted
on the clutch' shaft 41,«itfwill be observed that
a‘slippage of the shaft 14 relative to the hub 1|. 10
Sliding' movement. of the hub `1|‘ relative to the '
spindle 11 is prevente'dby 4a' flange 92 on the >
Àinsideof'thev hub 1| v_which contacts with a p0r
'tion' of thebearing y18 /andby a flange 9,3 also
on the inside of the hub 1| which contacts with
a.' portion ‘of ‘theY bearing 19. v`It will be noted, “
atIthe SamesDee'd ofv rotation‘iasthe'shaft 28, this ` therefore;y that"whilejthe‘iwheel> i3, the'hub‘1l
speed ‘ being transmitted 4to the front “axle v.pro
i Awhen the clutch» sz isïsmfted‘into engagement
15
with the gear 48, ‘theï clutch shaft ?41 will be driven
peller shaft‘Sß.;h
., 20
‘
and the spindle 11 arerii'xed against relative slid
‘_
Another gear ratio is provided by shifting the
creeper'gear y34 into engagement'with theïgear
ing movement, 'they are so* constructed las‘to
pivot as a unit lonjan arc described about' the 20
pivot pins 83, the' radius .of this arc being sub
44‘which is mounted ron the ‘endof the'g'main
coincident'in lengthv with the length
drive shaft.“` The gear 44 inï tu‘mdrives the gear stantially
the spindle 11. Duringy the swinging `of the
>46 through the gears 45 andi4|` 'so that'when the ' of
clutch 52l is in’positi‘on for 'driving the.: clutch hubV and spindle Vassembly the driving axle 14 f
25
shaft 41, the'clut‘ch shaft 41ywill`be rotated-Hat
'
the same speed as the y-rear driveïshaft 28.
isffree for `‘relativerV sliding movement in the
l
25
"Referring to Fig. '2, the articuiated driving longitudinally‘of _the spindle 11 during ‘the time
Wheels I3' in' the’p‘resent instance are carriedgon that the axle 14 is` rotating and driving the hub
‘ the forward end of the vehicle and each wheel
`1| and thefwhfeel >`I3.v
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g `('fonsiderable strains are imposed upon univer
30l on a hub member 1|. Also secured tothe flange ' sal "joints in similar types of construction which t
. A18 `isthe‘bra'ke drum 12`whichïis adjacent to the do not embody the present invention which per
is secured to and carried by ’a ñangev 18 formed
stationary plate 13 which carries the brake mech
nismïmot shown) of any conventional type which
is provided with means for frictionally engaging
the inside surface of the' drum 12^ to effect Aa
braking action on the? vehicle wheel.
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A’power‘ driven stub axle 14 is connected by
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ysplines of the driving dog 16 and thus may move
` a splined slip connection-'i15‘fwith the hub driving
40 dog 16fwhich is secured tothe' hub-1|" and trans
e
ao
'mits slippage between the driving`axle`14- and
the driving dog r1li.A
such constructions' it is
conventio-naldesign‘Àto anchor the shaft '14 in
>the driving dog in' such _amanner as to prevent
any relative sliding movement of the axle and -
dog. LIn this construction, when the spindle and
hub assemblyy is swung through the above de
scribed are, the shaft> 14 also rswings through 40
mits the driving torque'fromfthe.ax1e14`to the
an arc'whose .pivotpoint is thevpivotal center
hub¿1| and the attached> driving wheel' I3.,` " ‘
‘_The axle 14 is journaled in and `extends through
the spindle and stub shaft swing have the same
the wheel’spindlev-11 `which forms a >housing for
c’enter when one of the axes of the universal
joint coincideswith the turning axisof the spin
die on the pins 83 `and inv other radial positions
ofthe universalfjointfthe axis of the shaft 14
does" not coincide' with `the axial line "of the
pins 8_3.' This’results‘k inthe creation of a thrust
on the axlev 14 which in Vturn is transmittedby
the axley 1,4` to the‘universall joint'or other part
45 the axle 14.\y The spindle ï11 is formed as‘ai forging
‘ whichisintegral with‘the steering yoke 82.V The
hub 1| is- mounted' onlbearing's 18 and'18 carried
on the outside surface of the' >spindle 11. " This
permits rotation of the hub 1| and the connected
parts relative to the-spindle `11‘. The _inside _of
the hub >member 1I is packed with a> suitable
lubricant and is sealed by the packing'strip 88
and
The
the
entire
cap wheel
8|.
and hub assembly
'l
j, is permitted
,
to
movein
an
arc
about
_king
pins
83
whichpiv
55
' ‘otallyconnect 'the yoke 82 `of ‘the spindle 11,' the
connection being effectedwith the]` forked end
84 of the >fixedv axle housing 85. ‘.)Movement‘of the
rwheel andhubassernbly in‘an- arc with the king
60 pin`sï84-` as the pivoting axis" is initiated and con
v
of the universal joint 9|'.` The radius >on which
50
ofV the drivingmechanism. ^ Some attempts have
been‘made ’to " compensate for this force in nt
ting the‘counterpartof' the power driven driving
axle 9811oosely in the> housing 85 in such a man
ner that it may .mover angularly therein.y „Some
attempts also have been made to provide special
thrust bearings inthe universal' joints to absorb
these strains-` Ineither instance, however, the
results havefnot been fully satisfactory.
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60
In the construction herein disclosed and set
trolled by the steering arm`86 (shown in dotted . `forth the "axle 98 is driven from the power driven
line) which is rigidly connected with a portion of
the wheel carrying spindle"11atpnefend and
propeller shaft 56 through a conventional differ
is pivotally connected with the, conventional steer
|88. i The shaft 98 is'anchored in the housing 65
85 for rotation‘therein in ball orroller bearings n
65 ing rod 81 at thejotherend, the steering `rod '81
in turn'being connected with andvactuated by
i the conventional steering mechanism of any `de
sired type V(not shown).
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VThe‘drivinglaxle 14 is connected for rotation
an ‘angular ,movement relative to the fixed
70 with
driving ‘axle 88 mounted'. in the axlehousing 85.
The connection is effected by means of anni
versal joint9| Which~may be of any desired
ential mechanism which is indicated generally kat
|8|. `The shaft '88' is,`th`erefore`, in the present
embodiment essentiallyan anchored or ñxed `ro
tatingfshaftonly yand is not required to absorb
thrust shocks transmitted theretov as above de
scribed.v
. In order‘to
. compensate
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'. for possible
.Y
wear in
the gears in the differential I providean adjust
typeto permit the required rotation of the e ing mechanism indicated generally at |82, which
driven
axle 14 from the ñxed axle 88 throughout may be of any preferred type of construction.
76
70
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2,132,545
In the foregoing description I `have referred
spindle pivotally-connected with each end of said
rigid axle housing, a stub shaft carried by each
wheel. It is understood, of course, that the spindle vand maintained in sliding driving con
construction is embodied in ~`each. wheel of the ` nectionvwithsaid' articulated driving wheels, a
to the construction as being embodied in one
>vehicle which is an, articulated driving wheel.
In the preferred construction as herein set forth,
a cross yoke of the universal joint 9| is formed
as an integral part of the stub shaft 14. However,
it is within the purview of the present invention
universal jointsection connected to one end of
an axle shaft, a universal `joint section connected
to the adjacent end of the respectivestub shaft,
the two universal-joint sectionsbeing pivotally
connected together with the pivotal axes thereof
intersecting at a .point'normally lying on the loY
14 and the universal joint 0|.
` swinging axis> oi the respective spindle.
The invention, however, is not limited solely
3. A motor vehicle construction having driving
to articulated driving wheels but may also be wheels` and comprising the combination of a ro
found useful in connection with driving axles of tating driven shaft connected with each of the
15 the` so-called “full floating” type wherein it fre
driving wheels and mounted for free sliding move 15
.guently is desirable to provide ior sliding move
mentrelatlve thereto, -a power driven- driving
ment between the ends of the axledrive shaft shaft for each wheel, a fixed housing for each
and the driving hub, although the wheel and driving `shaft,¿ad_iustable means on each driving
hub in such instance are not strictly speaking an shaft for holding the same against angular and
20 articulated wheel and an articulated hub. VThe longitudinal movement relative to the ñxed hous
invention, therefore, while being particularly dis
ing, a yoke on the end ofthe driving shaft, al pivot
closed herein as applied _to articulated driving pin carried in the ends. ofk the yoke, a yoke on
wheels, is intended to be used in any instance the respective end of the driven shaft, a pivot pin
wherein it is desired to provide a slip connection
li) >to provide a member for connecting the shaft
25 between a driving axle and a wheel carrying,
power driven hub.
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carried thereby, the pivot pins intersecting lto
form a universal joint having a common turn
ing point, yoke ends on the end of the fixed hous
The spring suspension shown in Fig. 2 is of ing
and a spindle provided with yoke ends fitting
the conventional transverse leaf spring type and between the yoke ends of the fixed housing, the
comprises a leaf spring |03 which extends trans ' yoke ends of the ñxed housing and spindle being
30 versely of the vehicle and on a line substantially pivotally connected to.„turn on »a vertical axis
parallel to the axle. 'I‘he spring is suspended at passing through the point of intersection of the 80
its free endsV from spring hanger members |04 . axes
of the universal joint.
carried on the axle and swinging shackle con
4. A motor vehicle construction having driving
nections |05 extending between the hanger mem
wheels and comprising ,the combination of al
35 bers |04 and the ends of the spring\|03. In this rotating driven shaft connected with each of the
construction the vehicle frame `I5 is provided
with a transverse frame member |05 which is driving wheels and mounted for free sliding
movement relative thereto, a power driven driving
secured to the spring |03 in any desired manner.
shaft for `each wheel, a ilxed housing for said
It is to be understood' that the rearl spring in driving shafts, adjustable means for holding each
the construction herein shown is of the same driving shaft against angular and longitudinal
40
general type as that just described.
I claim: ,
l
,
n
necting member comprising a single universal
1. A motor vehicle axle unit comprising a rigid
housing adapted to be secured to the vehicle
joint between each driven shaft and the end of
frame, a differential in the housing operatively
connected with a source of power, `rotating shafts
for each driving shaft being provided with yoke 45
ends, a spindle about each driven shaft having
yoke ends, the yoke ends of the spindle and hous
journaled in the housing on opposite` sides of the
diiîerential and in axial alignment, adjustable
means for maintaining said shafts _from longitu
50
movement relative to the fixed housing, aV con
d'nal displacement, the ends of said housinghav
ingintegral terminal yokesr wheel spindles hav
ing integral yokes pivotally connected'with the
yokes Aof the respective housing ends, said shafts
at the yoke ends each having a portion of a uni
versal joint secured thereto,` a stub shaft asso
ciated with each wheel spindle, each having a
companiony portion of a universal joint pivotally
associated with said first named universal joint
portion, the pivotal axes of the universal con
60 nection intersecting on the turning axis of the
spindle, wheel hubs on the said spindles, the stub
the respective driving shaft, the` ñxed housing
ing being arranged forfinter-engagement, and f
pivot pins connecting said yyoke ends providing a
vertical turning axis, the axis of the pivot pins
passing through the point of intersection of >the 50
axes of the universal Joint.
,
5. yA motor vehicle having a power driven axle
comprising a rigid axle housing, power driven
axle shaftsjournaled _in said housing, adjust
able means for maintaining the axle shafts from 55
possible 'longitudinal movement in the axle hous
ing, articulated driving wheels carried byspin
dles pivotally secured `to the ends of said hous
ing, stub shafts having splined connections with 60
the’hubs of said driving wheels thereby permitting
shafts having a splined connection with the hubs, free sliding motion of the stub shafts relative to
the arrangement providing for a free slidingA of ' lthe wheels, and means comprising a universal
the stub- shafts relative to the respective hubs, joint connecting the stub shafts for rotation with
and means> preventing movement of Aeach hub the power driven axle shafts, the pivotal axes
in a directionlongitudinally of the istub shaft.
of the universal joint intersecting at a point
2. The combination with a motor vehicle in
normally lying on the swinging axis of the re
cluding a front driving axle, articulated driving spective spindle, the arrangement permitting free
wheels connected with' said vvfront driving axle, swinging movement of the spindle relative to the
7 O the said axle comprising a rigid axle housing, axle axle housing while maintaining adriving con
shafts journaled therein, adjustable means for
70
holding the shafts against relative longitudinal nectìon between the said shafts and the said
and angular movement in the axle housing, a
.CHARLES D. SLUTH.
wheels.
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