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Nov. 5, 1946.
Filed June 6,_ i942
/ ‘m
___FE‘I 2a
L. Eksergian,
ORG Mich, eon: o
The Budd Company, li’hiladelpa, Esq, a cor
poration of Pennsylvania
Application June 8, 1942, Serial No. ceases
4 Claims. (GI. ?ll-63)
The invention relates to a wheel body and rim
organization and more particularly to such an
organization adapted for the mounting of heavy
duty pneumatic tires.
It is among the objects of the invention to pro
vide a device of this class which facilitates the
inclined portion of the disc wheel Mdy adjacent
its merger withthe generally axially extending
peripheral ?ange and the flange itself, with the
outboard margin or said ?xed rim section and
the securement of the nested overlapping por
tions of the wheel body and
by two axially
spaced annular lines of securement. One such
mounting and demountin'g oi the tire, which in
line of securement may be a usual annular se
sures the locking of the tire to rim both in the
ries of rivets interconnecting the axially extend
in?ated or de?ated condition, and which provides
for a strong connection of the wheel body and 10 ing flange and rim section and the other line of
securement farther outboard is achieved by the
rim with a, minimum of weight consistent with
the streh required.
clamping in place of the demountabie rim sec
tion'. To this end, the extreme outboard margin
To secure the easy mounting and demounting
of the ed rim section is formed with a radially
oi the tire, the rim seating the tire is preferably
outer inclined seat and the demountable rim
made in two sections. one being?xed to the wheel
?ange section is formed with a correspondingly
body and including a rim base portion having a
inclined face engaging said seat. It may be iirm
tire retaining ?ange at one margin thereof and
ly clamped to this seat by means extending be
having the other margin thereof overlapping and
tween the wheel body and the demountable rim
secured to a peripheral flange of a disc wheel
body, and the other being'a rim ?ange section 20 ?ange section, and such clamping action pro
demountably telescoping the margin of the ?rst
vides an additional line of securement along the
section which is secured to the wheel. Means . line where the inclined portions of the wheel
body, and the two rim sections overlap. This '
are provided to detachably clamp said second sec=
tion in place.
double securernent insures adequate strength
To insure the locking of the tire on the rim 25 with less weight of metal in the wheel body pe
riphery and the rim sections.
base in both inflated and de?ated condition, and
The clamping means may comprise an annu
yet permit its easy mounting on the rim base,
the margin of the base or the section overlap
iar clamping ring of channel cross section, hav
ing one side wall of the channel seated against
ping the wheel
so is preferably of an outside
diameter slightly less than the inside ‘diameter 30 a radially extending peripheral portion of the
of the beads of the tire to be mounted on the
- disc wheel
and its other side wall seated
rim, but the part of the rim base from approxi
mately a medium plane of the rim being of grad
against a shoulder on the demountable rim ?ange
section. An annular series of bolts and nuts ex-'
nally increasing outside diameter, which diam
tending through the wheel body and clamping
, eter, at the bead seating-portion adjacent the 35 ring serves to securely clamp the parts together.
Other and further objects and advantages and
inboard ?ange, is slightly greater than the ln- 1
the manner in‘ which they are attained will be
side diameter of the tire bead, so that as the tire
is forced home on the rim, the inner bead will
be forced up this inclined seat and strongly iric
clari?ed by the following detailed description
tlonally interlocked with the rim. Similarly the 40
demountable rim ?ange section is provided with -
ing a part hereof.
In the drawv 1:’. :v
an inwardly extending portion 0! approximately
thewidth of a bead‘ seat of the tire which tele
‘l is an outboardelevational view of a '
wheel emg the invention _
when read in connection with the drawing torm
Fig. 2 is’ a sectional view on an enlarged scale
scopes over the less diameter outboard
1' antialw along the lines 2-2 oi
. l.
oi the ?rst rim section and this portion is also , 45 taken
The wheel ti rim organization oi the inven
or a tapered section, having an outer diameter
oi gradually increasing length correspon-f
the outer diameter 0! the rim adjacent the oppo
site tire retaining ?anse, so that when the de
mountable section is forced in place its inward
ly extending portion will trictionally interlock
with the adiacent the bead seat.
The strong connection between the wheel body
tion is she, in the embodiselected for
illustration, amociated with a tapered disc wheel
body it, demountabiy bolted, as by an‘ annular
series of securing bolts ii to the outboard face
or the hub ?ange i2. The hub 11a
is shown
associated with a freely‘ rotatable hub l3 mounted ’
to rotate on a, ?xed axle I‘ through spaced anti
~sndtherimisobtainedwithamlnimumoi " friction bearings indicated at II and II. The
weight by providinganested relation between the 6B hub and bearings are secured in place by the
' 2,410,573
- 4
usual axle nut l1 and the hub is closed at its
line of securement may comprise a usual annular
series of rivets, as 3|, these rivets connecting the
outer end by the hub cap I8;
generally axially extending ?ange 23 to the rim
A large diameter brake drum I9 disposed close
ly adjacent the rim has its head secured to the
inboard side of the hub ?ange l2 by the same
series of bolts l l securing the wheel body in place.
section 24.
The wheel organization so far described is con- .
ventional and is merely one form of such organ
ization out of many with which the main fea
tures of the invention now to be described in de
tail may be associated.
?ange section 25 vin place.
‘As shown in Fig. 2, the extreme outboard edge
of the rim base 26 overlaps in nested relation the
rounded or inclined portion 22 of the wheel body
and radially outwardly of this region, it is pro-'
To add strength to the wheel body [0 and to
bring the tread in the desired inboard position
the wheel body it! outwardly of its central bolted
vided with an inclined seat 32 adapted to co-act
with a correspondingly inclined seat 33 on a short
radial projection 34 of the demountable section 25.
on portion is deeply dished at 20 and at its pe
riphery this deeply dished portion merges with a
To clamp the demountable rim ?ange section
25 in place, as shown in Fig. 2, clamping means
is provided extending between the wheel body and
generally radially extending portion 2i, which in
turn merges through a rounded or inclined por
said section 25, which acts to securely clamp the
tion 22 into the generally axially inwardly 8}
tending rim seating ?ange 23.
For the. additional line ‘of securement, the im
proved construction employs the action of the
clamping means for holding the demountable rim
20 outboard margin of the rim base portion 25 to the
wheel body approximately along the line of said
To facilitate the mounting of the heavy duty
interengaging inclined portions, thus providing
pneumatic tires adapted to be used with the in
the second line of securement additional to that
vention, the rim is made in two continuous an
provided by the rivets 3|. _
nular sections, a fixed section 2t and a demounta
The clamping means may compriw an annular
ble section 25. The fixed section comprises a 25
series of bolts, as 35, extending axially through
generally axially extending rim base portion 26
the radially extending portion 2| of the wheel
body closely adjacent to the rounded or inclined
?ange 21 and having itsoutboard end nesting
portion 22 thereof. In fact, the heads 38 of the.
with the rounded or inclined portion 22 of the
wheel body and its ?ange 23 and secured thereto. 30 bolts are deformed to provide portions backing
' terminating at its inboard end in a the retaining’
up the rounded portion 22 (if the wheel body, as
The outboard portion of base 28 up to about
the point 28 is of slightly less outside diameter
thangthe inside diameter of the tire bead of a
clearly appears in Fig. 2.
I tire to be associated therewith. Inboard from the
point 28 to ?ange 21, or for approximately half the
width of the tire base 26, its outer. diameter
gradually increases, so that, in the region of the
tire bead seat thereon adjacent the ?ange 21, it
is of slightly greater outside diameter than the
inside diameter of the tire bead.
formed by the short inward extension 36 on the
demountable rim ?ange section 25. Nuts 38 as-_
'sociated with the bolts 35 bear against the out
readily passes over the smaller diameter outboard
portion of the rim base 26 and can be readily
forced up the gradual incline formed by the
gradually increasing diameter until the inner
- ‘
In this "
position, by reason of the practically inextensi- '
‘ bility of the tire bead,.the bead will, by reason of
wheel body and the other side, against a shoulder
This arrangement of the rim base facilitates the
placing of the heavy tire on the rim since it
, bead seats against the inboard ?ange.
The bolts 35 pass through the base of a hollow
or channel section clamping ring 31, having one
side seated against the radial portion 2! of the
board face of the clamping ring and when tight
ened, in addition to locking the tire in place on
the rim, operate to clamp the overlapping in
clined parts of wheel body Ill and rim section 24
securely together in a region outboard of the
U riveted connection. ' Thus, the clamping means
for securing the demountable rim section“ has
the two functions of holding the tire in place on
.the rim and forming a. strong connection between
the wheel body and rim.
"the slightly larger outside diameter of» the rim 50 While a speci?c embodiment of the invention
has been described, it will be understood that
base than the inside diameter of the tire bead,
the main features may be produceable in other
be ?rmly frictionally locked to the tire base, so
specific embodiments which would readily oc
that‘it will rotate therewith, even when the tire
becomes de?ated.
cur to one skilled in the art, and it is desired to
To secure the tire in place and to additionally ~ 55 cover such in the following claims.
frictionally interlock it with the rim, thede
What is claimed is:
_mountable rim section 25 is provided with an
1. A wheel and rim organization for wheels
outboard tire retaining ?ange 28 and a tapered
equipped with heavy duty pneumatic tires com
inward extension in freely telescoping over the
prising a. disc wheel body having a peripheral
outboard end of the rim base 26. This tapered 00 axially extending rim seating ?ange. a continuous
inward extension is of approximately the width
annular rim section comprising a base and a tire
of the tire bead to be associated therewith and
retaining ?ange at one margin of the base, the
‘has a tapered outer diameter, like the tapered
other margin of said base being turned radially
outer diameter adjacent the ?ange 21 of the rim
inwardly and seating in nested overlapping re
base 26, slightly greater than the inner diameter 65 lation with said axially extending rim seating
' of the tire bead, so that, when the demountabie
?ange ‘and the adjacent radially extending wheel
rim section is forced to its seat, the tire bead as
body portion and being secured thereto in the
sociated therewith will also be ?rmly frictionally
locked to the rim.
overlap by an annular series of circumferentially
spaced securing means, the extreme margin of
To enable the use of lighter gauge metal in 70 said rim base beyond said securing means hav
the Joint between the wheel body in and the in
ing' a smooth inclined seat, a continuous de
ternesting outboard end of the rim base portion 26“
mountable tire retaining rim ?ange section hav
of the ?xed rim section, 215, two annular lines of 1 ing amating inclined seat engaging the inclined
seat on the ?rst-named rim section, and clamp
securement are preferabh' provided between said
the wheei body and ‘the de
overlapping vand inter-nesting .- == “ .~
One such 75 ing means-ens
imountable rim ?ange section so as to cause said
inclined seat on the demountable section to ride
equipped with heavy duty pneumatic tires, com
prising a disc wheel body having a radially ex
means for clamping said demountable rim sec
tion in place and cause its inclined face to ride
up its cooperating inclined seat and clamp to~
gether, with a large radial component of force,
‘the nesting inclined portions of said wheel body
and the axially outer portion of said fixed rim
section, said clamping means comprising abolt
having a head with a portion thereof backing up
the inclined portion of the wheel body, a clamp
ing element spaced from the wheel body and rim
in its intermediate portion, and at its margins
engaging the radially extending portion of the
wheel body and the demountable rim ?ange sec
tending-portion adjacent its periphery terminat
tion, respectively, said bolt extending through
up on the correspondingly inclined seat on the
?rst-named section and thereby tightly clamp,
with a large radial component of force, the mar
gin of the ?rst-named section carrying said in
clined seat to the wheel body, and so providing
additional means, axially spaced from said an
nular series of securing means, for securing the
rim to the wheel body.
2. A wheel- and rim organization for wheels
ing in an axially inwardly extending rim seating 15 the intermediate portion of said clamping mem
?ange, a rim section including an inboard tire
retaining ?ange and a base having one. margin
thereof seated on said ?ange ‘and secured there
to, said margin having a radially outer inclined
(seat, a demountable tire retaining rim ?ange 20
ber and a nut screwed onto the bolt and engag
ing the axially outer face of the clamping mem
ber, whereby the tightening of said. nut clamps
the parts of the rim and wheel body together in
their internested relation.
section having a radially inwardly projecting
4. A wheel and rim organization comprising a
portion with an inclined seat resting on said ?rst
wheel body having at its periphery a rim se
named inclined seat, and clamping means in
curing seat including an axially extending por
cluding a clamping ring having in-turned mar
tion merging at its axially outer margin into a
gins engaging respectively the outboard faces of 25 curved portion,‘ a ?xed rim section having its
the radially extending portion of said wheel body
outer margin formed to nest with the axially ex
and the demountable rim section, and an annu
tending and curved portions of said rim securing
seat, said rim section having its said axially outer
margin formed with a radially outer smooth in
the demountable rim section in place and at the 30 olined seat, a demountable rim section having a
same time clamping the ?rst-named rim section
radially inner inclined seat mating the inclined
?rmly into engagement with the wheel body
seat on said ?xed rim section, and clamping
flange, thereby serving as part at least of the
means ‘securing said rim sections to each other
securing means between wheel body and rim.
and to the rim securing seat of said wheel body,
3. A wheel and rim organization comprising a
said clamping means having parts engaging the
lat-series of spaced clamping bolts between said
wheel body and said ring for forcibly clamping
disc wheel body having a generally radially ex
tending portion merging through an inclined por
wheel body and the demountable rim section and
acting to force said demountable section axially
tion into an axially inwardly extending peripheral
toward the ?xed section and cause its inclined
?ange, a ?xed rim section having the radially
seat to ride up the smooth mating inclined seat
inner face of its axially outer margin nesting with 40 of said ?xed section and thereby exert strong
said inclined and ?ange portions of the wheel
radial components of force effective to strongly
body, the radially outer face of said margin be
clamp together the nested portions of the.?xed
ing provided with a smooth inclined seat, a de
rim section and the rim securing seat of the
mountable rim ?ange section having an inclined
wheel body.
face arranged to engage said inclined seat and 45
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