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Патент USA US2405148

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Aug. 6, 1946.
5 Se KEAHEY
2,405,148
COUPLING
Filed April 3, 1943
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Patented Aug. 6, 1946
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2,405,148
UNITED STATES PATENT OFFICE
2,405,148
COUPLING
Frank S. Keahey, Sturgis, Mich., assignor, by
direct and mesne assignments, to Kirsch Com
pany, Sturgis, Mich.
Application April 3, 1943, Serial No. 481,725
4 Claims. (Cl. 287-—100)
2
1
?attened sides in opposed relation to the ?attened
inner sides of the ?ller members.
First, to provide a coupling well adapted for
With the ball member properly centered be
use in control rods and the like of airplanes and
tween the members II], it is rotated on its axis to
other relations where a ?exible joint is required.
bring its bearing surfaces into coacting relation
Second, to provide a coupling element in which
with the bearing of the socket member and as
the parts may be economically produced, readily
long as that relation is maintained, the ball mem
assembled, and at the same time provide a strong
ber is retained within the socket member.
and compact structure which cannot be disassem~
The coupling pin 1 is carried by the forked
bled when in cooperating relation to other coact
10 coupling member l3 which is used in connection
ing parts.
with the ball and socket member described.
Objects relating to details and economies of
When the parts are engaged it is impossible to
the invention will appear from the description to
disassemble them without removing the coupling
follow. The invention is de?ned and pointed out
pin and reversing the assembling operations de
in the claims.
Preferred embodiments of the invention are il 15 scribed.
With the parts thus arranged, they are very
lustrated in the accompanying drawing, in which:
easily machined and they are very easily assem
Fig. 1 is a side elevation of a coupling unit em
bled. The ?ller elements serve to exclude dust
bodying my invention with the parts in assem
and dirt which is an important feature thereof.
bled relation.
Fig. 2 is a fragmentary view of a coupling em 20 They are also of advantage in simplifying manu
facture.
bodying my invention partially in section on line
I have illustrated and described my invention
2--2 of Fig. 1.
in very practical commercial embodiments there
Fig. 3 is an exploded side elevationa1 view of
of. I have not attempted to illustrate or describe
the ball member and its coacting complemental
25 certain modi?cations and adaptations which I
?ller segments.
contemplate as it is believed that this disclosure
Fig, 4 is a sectional view on line 4—4 of Fig. 3.
will enable those skilled in the art to embody
Fig. 5 is a fragmentary view partially in longi
The main objects of this invention are:
or adapt my invention as may be desired.
tudinal section illustrating the manner of as
sembling and disassembling the ball element with
in the socket element.
Having thus described my invention, what I
30 claim as new and desire to secure by Letters Pat
The embodiment of my invention as illustrated
in Figs. 1 to 5 inclusive comprises the socket
member I having an annular internal bearing 2
of concave section. This socket member is pro
ent, is:
1. In a coupling, the combination of a socket
member provided with a shank and having an
internal annular bearing of concave section, a
vided with a shank 3 threaded at 4 for conven 35 ball member having an axial coupling pin open
ing and having opposed segmental bearing por
ience in attachment to one of the elements to
be coupled.
,
The ball member 5 is disk-like in general form
and is provided with an axial coupling pin hole
or opening 6 adapted to receive a coupling pin as 40
‘I. This ball member has opposed segmental
bearing portions 8 of convex section adapted to
coact with the internal bearing of the socket
member. This ball member has opposed ?at
tened sides 9 between the bearing portions 8, these 45
?attened sides or portions 9 being parallel.
The segmental ?ller elements Ill have convexed
bearing portions II complementary to the bear—
ing portions 8 of the ball member and they have‘
?at inner sides I2 which complement the ?at 50
sides 9 of the ball member.
In assembling, these ?ller elements are inserted
within the socket member in opposed relation
and the ball member is then presented between
them at a 90° angular relation thereto with its 55
tions of convex section adapted to coact with the
internal bearing of said socket member, said ball
member having opposed parallel ?attened sur
faces between its said segmental bearing por
tions, segmental ?ller elements having segmental
bearing portions of convex section complemental
to the bearing portions of said ball member and
having ?attened inner sides coacting with the
?attened surfaces of the said ball member, said
ball member being insertable between the ?at
tened surfaces of said segmental elements when
they are positioned in opposed relation within
said socket member and the ball member is pre
sented at 90° angular relation thereto with its
?attened surfaces in opposed relation to the ?at
tened surfaces of the segmental elements, said
ball member being retained in said socket mem
ber by the engagement of its bearing surfaces
with the bearing of the socket member, and a
2,405,148
3
second coupling member forked to embrace said
socket member and provided with a coupling pin
engaging said coupling pin opening of said ball
member.
4
said segmental bearing portions, segmental ?ller
elements complemental to the bearing portions of
said ball member and coacting with the ?attened
surfaces of the said ball member, said ball mem
ber being insertable between the said segmental
2. In a coupling, the combination of a socket
elements when they are positioned in opposed
member having an internal annular bearing of
relation within said socket member and the ball
concave section, a ball member having opposed
member is presented in angular relation thereto
segmental bearing portions of convex section
with its ?attened surfaces in opposed relation to
adapted to coact with the internal bearing of said
socket member, said ball member having opposed 10 the segmental elements, said ball member being
retained in said socket member by the engage
parallel ?attened surfaces between its said seg
mental bearing portions, and segmental ?ller
ment of its bearing surfaces with the bearing of
elements having segmental bearing portions of
the socket member, and a second coupling mem
convex section complemental to the bearing por
ber forked to embrace said socket member and
tions of said ball member and having ?attened 15 provided with a coupling pin engaging said cou
pling pin opening of said ball member.
inner sides coacting with the ?attened surfaces
4. In a coupling, the combination of a socket
of the said ball member, said ball member being
member provided with an internal annular bear
insertable between the ?attened surfaces of said
segmental elements when they are positioned in
ing of concave section, a ball member having
opposed segmental bearing portions of convex
opposed relation within said socket member and
the ball member is presented at 90° angular rela
section adapted to coact with the internal bear
tion thereto with its ?attened surfaces in opposed
ing of said socket member, said ball member hav
relation to the ?attened surfaces of the seg
ing opposed parallel ?attened surfaces between
its said segmental bearing portions, and seg
mental elements, said ball member being retained
in said socket member by the engagement of its 25 mental ?ller elements complemental to the bear
bearing surfaces with the bearing of the socket
ing portions of said ball member and coacting
with the ?attened surfaces of the said ball mem
member.
3. In a coupling, the combination of a socket
ber, said ball member being insertable between
member provided with an internal annular bear
the said segmental elements when they are posi
tioned in opposed relation within said socket
ing of concave section, a ball member having an
member and the ball member is presented in
axial coupling pin opening and having opposed
angular relation thereto with its ?attened sur
segmental bearing portions of convex section
faces in opposed relation to the segmental ele
adapted to coact with the internal bearing of
ments.
said socket member, said ball’member having
FRANK S. KEAI-IEY.
opposed parallel ?attened surfaces between its 35
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