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Патент USA US3036825

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May 29, 1962
c. E‘ BRANICK
3,036,815
TIRE SPREADER
Filed Oct. 7, 1960
2 Sheets-Sheet 1
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A
INVENTOR.
CHARLES E. BRANICK
ATTORNEYS
1
I May 29, 1962
c. E. BRANICK
I
3,036,815
TIRE SPREADER
Filed Oct. 7, 1960
2 Sheets-Sheet 2
FIG- 3
/
516. 4
27m
9
vlNVENTOR.
CHARLES E. BRANICK
.AT TORNEYS
United States Patent
1
ice
3,636,815
Patented May 29, 1962
2
spective members 3 therein impart rigidity to the rec
tangular frame 1.
Interposed between the spacer sleeves 6 and the ex
tended ends of the frame members 4 and journalled for
rotation on the extended outer end portions of the frame
members 3 are bearing sleeves 7, each of which has a
3,036,815
Charles E. Branick, % Branick Manufacturing Co.,
TIRE SPREADER
P.0. Box 1937, Fargo, N. Dak.
Filed Oct. 7, 1960, Ser. No. 61,126
8 Claims. (Cl. 254-503)
rigid trunnion 8 projecting raidally therefrom.
My invention relates generally to pneumatic tire spread
Spreader arms 9, four in number, each has its upper
ers and more particularly to tire spreaders of the type
end portion rigidly secured to and journalled for rotation
which engage the opposed beads of the tire at circum l0 on one of said trunnions 8 for swinging movements. By
ferentially spaced points.
this means it is obvious that each spreader arm 9 is
The primary object of my invention is the provision of
mounted for swinging movements of the lower end there
a novel pneumatic tire spreader which may be suspended
of both in planes normal to the axes of the frame mem
from the ceiling of the room in which it is housed, under
bers 3 as well as parallel to said axes. Tying said spreader
conditions where" ?oor space is at a premium.
15 arms 9 together in opposed cooperating pairs 9a and 9b
A further object of my invention is the provision of a
are a pair of rigid guide bars 110, 11, respectively, each
device of the class immediately above described which
of which is provided at its outer end portion with slots
is particularly adaptable for inserting and removing air
12 which receive the intermediate portion of one of said
bags and curing rims in pneumatic tires prior to and after
arms 9. As shown particularly in FIG. 5, the bars 10,
a retreading or vulcanizing operation, although obviously
11 and their respective slots 12 preclude lateral move
not restricted to such use.
ments of the spreader arms 9 in the slots 12 but permit
A still further object of my invention is the provision
limited movements of said arms toward and away from
of a device of the class above described which incor
each other within said slots between the abutment form
porates a minimum of working parts and which occupies
ing outer ends 113 and the abutment forming inner ends
a minimum of space.
14. Mounting said guide bars 10, 11 and the pairs of
spreader arms 9a, 9b carried respectively thereby for
A still further object of ,my invention is the provision
of a device of the class above described which is ex
swinging movements toward and away from each other
are a pair of hanger bars 15, one each having its lower
and which presents a minimum of hazard to the operator.
end rigidly secured to one of said guide bars, as indicated
A still further object of my invention is the provision 30 at 16, ‘and one each of which has its upper end mounted
of a device of the class above described which is rela
for swinging movements about the axis of one of said
tively inexpensive to produce and operate, which is
frame members 3. The lower end portions of each of
rugged in construction and durable in use.
the spreader arms 9 are provided with cooperating mul
The above and still further objects of my invention
tiple hooks 17 for engagement of the ‘opposed bead por
will become apparent ‘from the following detailed speci 35 tions B of a conventional pneumatic tire C.
?cation, appended claims, and attached drawings.
For the purpose of imparting spreading movements to
tremely easy to operate, which is positive in its action,
Referring to the drawings wherein like characters in
the guide bars ‘10, 11 and the opposed pairs of spreader
dicate like parts throughout the several views:
arms 9a, 9b associated respectively therewith, I inter
FIG. 1 is a view in side elevation of my novel struc
pose a ?uid pressure operated device, identi?ed in its
ture, some parts being broken away and some parts shown 40 entirety by the numeral 18 between the said guide bars
in section;
v10, ‘11. As shown, the device 18 comprises a cylinder 19
FIG. 2 is a view in end elevation of the structure of
FIG. 1, some parts being broken away and some parts
which is pivotally secured on a horizontal axis to the
guide bar 10, as indicated at 20, and a cooperating push
rod equipped piston .21 which is pivotally secured to the
shown in section;
FIG. 3 is a view in top plan of the structure of FIG. 1, 45 guide bar 11 on an axis parallel to the pivotal connection
some parts being broken away;
20, as indicated at 22.
FIG. 4 is a fragmentary sectional view taken on the
When it is desired to spread the beads B of the tire
line 4-4 of FIG. 1;
casing C laterally for any given purpose, such as the
FIG. 5 is a view in horizontal section taken on the
placing therein or the removing therefrom of an inner
50 tube or air bag, the casing C is lifted into engagement
line -5-—5 of FIG. 2.;
FIG. 6 is a view in section taken on the line 6—6 of
with the hooks 17 carried by one of an opposing pair of
FIG. 1; and
spreader arms 9a, 9b. The hook 17 of the opposing
FIG. 7 is a view partly in horizontal section and partly
arm 9 is then caused to engage the same bead B in dia
in top plan as seen from the line 7—-7 of FIG. 1.
metrically opposed relationship to the ?rst-mentioned
Referring with greater particularity to the drawings,
the numeral 1 indicates in its entirety a rectangular sup
porting frame which is adapted to be suspended from a
ceiling or other overhead supporting structure A in a
55
hook 17, coil tension springs 23 (see FIG. 1) secured to
the extended upper ends 24 of the arms 9a tending to
maintain said hooks 17 in their bead-engaging positions.
Similar positioning of the book 17 associated with the
horizontal plane and in vertically spaced relation to the
arms 9a with the opposite bead B is then had. Further
?oor or ground, not speci?cally identi?ed, by flexible 60 augmenting a ?rm grasp of the multiple hooks 17 with the
chains or the like 2. The frame 1 comprises opposed
opposed beads B of the tire C, are coil tension springs
pairs of side frame members, one each of one pair of
25, opposite ends of which are tied to the arm extensions
said opposed side frame members being identi?ed by the
24 at right angles to the springs 23. As shown par
numeral 3 and one each of the other pair of said opposed
ticularly in FIG. 2, the springs 25 yieldingly bias the
side frame members being identi?ed by the numeral 4. 65 arms 9a, 9b and hooks 17 carried thereby away from each
As shown, the frame members 3 are in the nature of shafts
or axles, whereas the frame members 4 are in the nature
other and toward snug engagement with the tire bead C
sleeves 6 on their opposite ends which journal their re
embodiment thereof, I wish it to be understood that same
adjacent thereto.
of elongated rigid bars, the opposite ends of the latter
My invention has been thoroughly tested and found to
journalling the opposite ends of the former. Spaced
70 be completely satisfactory for the accomplishment of
parallel cross members 5 having rigid tubular spacer
the above objects, and while I have shown a preferred
3,036,815
4
of one pair of said frame members, means journalling said
trunnions for rotation on their respective frame members,
may be capable of modi?cation without departure from
the scope and spirit of the appended claims.
What I claim is:
and means journalling one each of said arms on one of
said trunnions for rotation in planes parallel to the lon
gitudinal axes of their respective frame members.
l. A suspension-type pneumatic tire spreader compris
ing a supporting frame, means for suspending said frame
in a generally horizontal plane from an overhead sup
5. The structure de?ned in claim 1' in which said last
port and in spaced relation to the floor, laterally spaced
opposed pairs of opposed spreader arms, separate means
rnentioned means comprises a pair of rigid guide bars
each having slots in its opposite ends for reception of the
intermediate portions of its respective spreader arms, said
pivotally mounting the upper end portions of said arms
for swinging movements of the lower end portion of each 10 slots permitting limited movement of said arms toward
and away from each other, and means suspending said
pair toward and away from each other and for pivotal
guide bars from said frame for swinging movements to
movements of each arm of a given pair toward and away
ward and away from each other.
from each other on an axis normal to the axis of swing
6. The structure de?ned in claim 5 in which said power
ing movement of each of said pairs, cooperating tire
bead engaging hooks on the lower ends of each of said 15 operated means comprises a ?uid pressure operated de
vice interposed between and pivotally supported by said
arms, power operated means for simultaneously moving
guide bars.
the hook-equipped lower ends of each pair of arms to
7. The structure de?ned in claim 6 in further com
ward and away from each other, means guiding each arm
bination with means yieldingly biasing each opposed pair
of each given pair and limiting movements thereof in
directions away from each other.
2. The structure de?ned in claim 1 in further com
20 of arms away from each other.
'
8. The structure de?ned in claim 7 in further com
bination with means yieldingly biasing the hook-equipped
bination with means yieldingly biasing the hook-equipped
lower ends of each arm of a given pair away from each
lower ends of each arm of a given pair away from each
other.
other.
3. The structure de?ned in claim 2 in further com
25
bination with means yieldingly biasing each opposed pair
References Cited in the ?le of this patent
of arms away from each other.
4. The structure de?ned in claim 1 in which said frame
UNITED STATES PATENTS
is rectangular in shape and comprises opposed pairs of
side frame members, and in which said pivotally mount 30
ing means comprises opposed trunnions on opposite ends
2,310,891
2,375,595
Branick _l_ _____________ __ Feb. 9, 1943
Stoehr ________________ __ May 8, 1945
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