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Патент USA US2404221

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July 16, 1946;
_A Y. DODGE
ONE-WAY ‘CLUTCH.
Filed July 3, 1944 >
2,404,221
Patented July 16,1946
2,404,221
UNITED._ STATES ' PATENT OFFICE
AdielY. Dodge, Rockford, Ill.
‘ - Application July 3, 1944, Serial No. 543388
11 Claims. (Cl; '192‘—45.1)
1
V.
This invention relates to- one-way‘clutches and
more particularlyto a combined one-way clutch
and bearing construction for use with coaxial
cylindrical races.
‘
2
.
,
It will be understood that the rollers have
‘limited radial movement‘ relative to the‘ cages H
so that when installed between cylindrical races
the sides of the cages and the outer surfaces “of
"
‘One of the objects of the invention is to pro
vide a combined one-way clutch and bearing con
struction in which lubrication of the parts is
the rollers will both engage the outer race sur
face.
'
'
'
"
'
A clutch unit is “mounted between‘ the two
maintained‘ under all operating conditions.
bearing units and.‘ includes a series of tilt‘able
grippers I 2 vwhich maybeconstructed as more
way clutchjand bearing construction in which 10 particularly described/and claimed‘ in my. copend
bearing'units-mounted adjacent the clutch unit
ing applicatiom?erial Nil-479,695 ?led March
for rotation relative thereto serve to maintain
19, 1943. '_ The'grippers are tiltable into one po
vlubricant in the clutch unit. ~ sition in which ‘they Wedge between the races to
-'Still another object of the invention is to pro
connect them drivably together andto‘another
"vide a one-Way clutchin which the clutch grip
position in‘ which. they disengage the races sov
pers‘are controlled during engagement and dis
that they may turnlfreely relative to eachfother.
\
Another object is to provide a combined one
engagement by the frictional effect of cage parts
‘Eachfof the grippers is formed with a transverse
on the races.
central opening l3 lying at'a slight angle: teits
Still another object is to provide a clutch cage
parallel faces thru which‘ an annular, coil spring
having two independently rotatable rings‘ yield '20 I4’ is threaded.‘ The anglerof the openingsis such
ingly engaging the inner and outer races respec
that the spring will be bent laterally by the‘grip
tively to provide a frictional drag thereon to con
pers to exert a) tilting couple on the grippers urg
ing them toward their engaged position.
'
A further object is to ‘provide a ‘clutch cage‘
‘The several grippers are supported in a cage
construction in which a yielding pressure against 25 formed by annular. inner and outer cagerrings
the races is maintained by utilizing the torsional
which are rotatable vrelative to each other. The
trol the grippers. - -
'
effect of the cage end rings. ‘
_‘
outer cage ring‘ as shown, com-prises annular end
The above and other objects and advantages
members If: connected by a series of spaced cross
of the invention will be more'readily apparent
bars ,l6 which ?t between the outer end portions
from’the following description when read in con 80 of the grippers and'are adapted'to engage the
nection
with the accompanying _ drawing, in
grippers to assist in tilting them. v Thecross bars
Figure 1 is a side‘elevation of a clutch unit with
provide adequate clearance at their‘ central pore,
parts in section;
l
’
"
'
16 arelpreferably bent“ as shown in._Figure '_2.;to '
_
Figure 21s a section of a combined clutch and 35
bearing assembly on the line 2—-—2 of Figure 1;
and
.
.
,
v
.
.
Figure 3 is a partial elevation of 'the‘inner cage
ring.
.
1
The entire assembly as seen in Figure 2, com
prises two bearing units with a clutch unit
mounted between them. " Each of the bearing
tions for the spring“ and to clear the outerrace
throughout
The innerthe
ring
major
is ‘similarly
portion offormedjwithtwo
their length.
annular‘ side members‘ [1' connected by a series
of spaced cross bars I ‘8 which?tbetweenand are’
adapted to engage theinner ends of the grippers
40 to assist in tilting them;
In crder'to control ‘the grippers on a reversal
of torque in the clutch‘ to producea more rapid
units ‘includes a plurality of beafin'g'rollers vHl
and positive engagement and disengagement, the
which maybe of the type more particularly 'de
cage ringsffrictionally engage the races're’spem
scribed and claimed in' my copending applica 46 'tively. , ‘To ‘obtain frictional engagement ‘betweevznv
tion,‘ Serial No. 521,010 ?led February 4, 1944.‘ As
the outer ring and‘the'o'uter race, the ring is split shown, the rollers are relatively narrow and their
as-indicated at lathruonev of the cross bars and
‘ends are‘curved or barrelledslightly to contact
is expanded to a'normal'size' slightly larger than
the races. The rollers are supported by annular
“the ‘diameter of the oi_1_t_er_r_ace._v In assembling
cages II which are'U-shaped in cross section 50 the clutch into‘the race; the ring isv squeezed in
with flat sides engaging the ?at ends of the
;rollers to support and guide them. -"I'he sides of
‘the cages form‘ disc like members and are of‘such
a‘ size as to? have a close running ?t with the
to ?t into the- race ‘and then' expands
it
so tha't'the rings I51 andlthe central pa'rts'of vthe
cross bars will-‘press: resiliently against theouter
race. 'In this way‘ a friction‘ drag is‘ produced
outer» race surface for a purpose to appear later. 55 between the outer cage ring-v and "mature;
‘ 2,404,221
4
3
What is claimed is:
race tending to turn the ring with the race.
'
1. A combined one-way clutch and bearing
Friction drag between the inner ring and the
race is produced by severing the ends or prefer
construction adapted to operate between coaxial
ably three of the cross bars as indicated at 2|.
As shown in Figure 3 the cross'bars are cut ad
jacent the rings l1 and are alternated from one
rollers between the races, an annular cage sup
cylindrical races comprisingv a series of bearing
porting the rollers having an annular disc like
portion ?tting closely against the outer race, a
to the other of the rings. , The central cross bar
series of tiltable grippers between the races, an
carries a friction block 22 which may be of bronze
I or the like to bear against the inner race. With
annular cage supporting the grippers lying adja
centibut' rotatable relative to the bearing cage, the
this construction :the side member “which sup
ports the central'cross r'bar l8 carrying the fric
disc like’ portion serving as a lubricant dam to
hold lubricant around the grippers.
2. A combined one-way clutch and bearing con
tion block acts as a torsion spring resiliently to
hold the friction block in engagement with the
struction adapted to operate between coaxial
cylindrical races comprising two axially spaced
"annular vseries of bearing rollers between the
seen in Figure l, the outer cage will also tend to. , races, annular cages for the bearing rollers each
having an vannular disc like portion ?tting closely
.turn counter-clockwise. The cross bars I6 willv
thus engage the right sides of the grippers while _ against the outer race, a series of tiltable grippers
axially between the twojseries of bearings, and an
the cross bars l8 of the inner ring engage their I
annular cage supporting the grippers lying The‘
left sides -,so that the grippers will be tilted coun
tween and rotatable relative to the bearing cages.
ten-clockwise about their own axes. ;In_this posi-i
the ‘disc like portions of the bearing cages :fonn
tionthe grippers willvengage the races drivably
ing lubricant dams to hold lubricant around the
‘to connect them. Upon a reversal of torque the
inner race surface.
’
-
In operation when the outer race tends to turn
counter-clockwise relative to the inner raceras
bars [6 will engage the outer left sides of the
grippers.
,
'
'
3. A combined one-way clutch and bearing
construction adapted to operate between-coaxial
grippers while the bars l8 engage the inner right
sides, tending to tilt the grippers clockwise out
of engagement with the ‘races... The spring l4
tendsat all times to tilt the grippers into engag-1
cylindrical races comprising two axially spaced
,annularrseries of bearing rollers between the
ing ‘position ‘and during the last described operate
' races, annularcages forthe bearing .rollerseach
tion the" action of the cage rings tilts the grippers
having an annular disc like vportion ?tting closely
‘against the spring substantially to offest the
against the outer race, 'a series'of tiltable grip
pers axially between the- two series of bearings,
.spring tilting force. The outer race may, there
fore, .turnclockwise with a minimum of drag rela-;
tive to the inner race on the bearings "It during:
overruning and the grippers will connect the races ‘
andran annular. cage supporting the ,grippers
lying between ,androtatable relative to the bear
ing cages, the -.gri_pper' cage includinginner and
' outer cage rings rotatable relative to-eaohother
quickly .and evenly in the driving direction.
and having resilient portions friction-ally engag
ing the inner and outer races respectively, the’
when the cage is not in place between the races
by the spring l4. To remove undue .strain'from, 40 cage rings having cross members engaging the
this spring when the parts are disassembled, the " grippers adjacent their opposite ends whereby
relative rotation of the rings tilts the grippers,
grippers are provided with projections 23 at their .
the disc like portions of the bearing cages forming 1
opposite ends ?tting loosely between the rings [5
lubricant dams to hold lubricant around the page
and IT. The projections are so ‘located on the,
rings and grippers.
_
grippers. that they will engage the outer ring
4. A one-way clutch construction adapted to
members l5 or inner ring member. 18 when the’
operate between coaxial cylindrical races com.
grippers tend to jail thru the slots in the cage
The ‘grippers are, held assembled. in the cage
prising a series of tiltable grippers, an outer cage
rings. vWhen the clutch unit is not between the
ring having ~.a series of cross bars ?tting between‘
‘races’ the projections 23 support the grippers be
tween rings l5 and I‘! to’pre’vent damage to the n30 and engageable with the \outer ends of the vgrip
spring
M.
v
v
v
pers, aninner cage ring having va series of cross
.
inner race, during. overrnnning, is very important
bars lying between and engageable with theinner
ends of the grippers, one of the rings ibeingasplit
and resiliently biased toward the adjacent :race
to prevent undue wearon the gripper ends and
onfthera‘ces. { The normal, tendency of lubricant '
ring yieldingly engaging jits adjacentrace.»
In operating clutch units .of the type shown,
7 Proper lubrication of the parts, particularly the
friotiona-llyto engage it, and means on the other
fed into the clutch is to ?owyout along the outer
race away from the clutch parts. According to
5. A one-Way clutch construction adapted ‘to
operatebetween coaxial cylindrical races com
the present invention, excessive flow of lubricant
prising a series of tiltable grippers, an outercage ,
away from the clutch parts is prevented by'bear-I 16L) ring having ,a serieslsof cross bars fitting between
=invg cages H which engage‘ the outer race‘ and
and engageable with the outer ends of the grip
provide lubricant dams holding the lubricant ‘in
pers, an inner cage ring having a vseries of cross
, the clutch, causing the flow .of lubricant to move
bars lying between and engageable-with the inner
ends of the grippers, one of cross bars having a
inner race and the cage 18. Thus, with 'arela- 5 . free end portion yieldingl-y engaging the adjacent
‘along the inner race and escape. between the
tively small supply oflrlubrioa'nt to the-clutch,
adequate lubrication of the inner race and gripper >
surfaces and between the cage ringsandthe. races
is insured.
>
.
e
..
,
v
y
1
,p While one embodimentof the ‘invention has
been shown, and described in detail herein, it will
:be understood that .thisis illustrative only and
.
notintended as-de?n-itionof.thescope of the in
‘ , venti'on, reference being hadior‘ this purpose to
,the appended claims.
-
5
I
v
I
race to create a: frictiondrag thereon.
> v
.
' ‘6., A one-way clutch construction adaptedvto
operate between coaxial cylindrical races com
prising a series of tiltable grippera'an outer cage
‘ring having a series of cross bars ?tting between
and engageable with the outer ends of the grip
pers, an inner, cage ring having a series of cross
bars lying between and engageablewith the ‘inner
ends of the grippers, the outer ,ring being .split
175 and resiliently expanded into engagement with
2,404,221
5
6
the outer race, and means on the inner ring yield
ingly engaging the inner race tov create a friction
on the free end of an intermediate one of the last
named cross bars irictionally engaging the adja
drag thereon.
cent race.
'
7. A one-way clutch construction adapted to
operate between coaxial cylindrical races com
prising a series of tiltable grippers, and inner and
outer cage rings each including annular end mem
bers connected by cross bars lying between the
10. A one-way clutch construction adapted to
operate between coaxial cylindrical races com
prising a series of' tiltable grippers, and inner
and outer cage rings each including annular end
members connected by cross bars lying between
grippers, the cage rings being rotatable relative
the grippers, the cage rings being rotatable rela
tive to each other, the outer'ring being split and
resiliently biased into engagement With the outer
race, at least three of the cross bars on the inner
ring being disconnected from one or the other of
the end members, and a friction block carried
by an intermediate one of the last named cross
bars adjacent its free end and engaging the inner
‘ to each other, and a cross bar on one of the rings '
being disconnected from one end member and
resiliently biased into frictional engagement with
the adjacent race.
I“
8. A one-way clutch construction adapted to
operate between coaxial cylindrical races com- '.
prising a series of tiltable grippers, and inner
and outer cage rings each including annular end
members connected by cross bars lying between
the grippers, the cage rings being rotatable rela
tive to each other, and a cross bar on one of the 1"
rings being disconnected from one end member
and a friction block connected to'the free end of
said one of the cross bars and frictionally engag
race.
'
11. A one-Way clutch construction adapted to
operate between coaxial cylindrical races com
prising a series of tiltable grippers, and inner
and outer cage rings each including annular end
members connected by cross bars lying between
the grippers, the cage rings being rotatable rela
tive to each other, the grippers having circum
ing the adjacent race.
9. A one-way clutch construction adapted to 25 ferentially extending openings therethrough, an
annular coil spring extending through the open
operate between coaxial cylindrical races com
ings and lying radially between the cross bars on
7 prising a series of tiltable grippers, and inner and
‘outer cage rings each including annular end mem
the inner and outer rings, and projections 0n the
ends of the grippers lying between the annular
bers connected by cross bars lying between the
grippers, the cage rings being rotatable relative to 30 end members on the inner and outer rings to limit '
radial movement of the grippers relative to the
each other, at least three adjacent cross bars on
one of the rings being disconnected‘ from one or
the other of the end members, and a friction block
rings.
v
ADIEL Y. DODGE.
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