close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2403781

код для вставки
July 9,' 1946..
' -w, B, BAR|\'|Es
'
2,403,781
OVERDRIVE TRANSMIS S ION
Filed 001;. 24, 1940
5 Sheets-Sheet v1
INVENTOR.
BY
'
WZZz'zzm 5 ?arms
ATTORNEYJ ‘
July‘9, 1946.
'
L
‘
_
-w. B. BARNES
-
2,403,731
,
OVERDRIVE TRANSMI’S S ION
Filed Oct. 24, 1940
W3
_
/
Y)“ / J
_
/
T3; - E ‘2385'
'
/
/” \
V' '
'
3 Sheets-Sheet‘ 2
\
“‘\\
\
INVENTOR.
M7198»
ATTORNEYS‘
2,403,781
Patented July 9, 1946
~ __uN1TEo STATE 5
PATENT, OFFICE _ '
OVERDRIVE TRANSMISSION
Ind., assig'nor to
William B, Barnes, Muncie,
Barnes Motor Developm ents Company, Muncie,
' vInd., a partnership 'v
Application October. 24,41940, serial Nassau? ‘a "
32 Claims.
(01. 741-260) ’
,
1
My invention relatesto improvements in trans-
~
2'
'.
shaft. This head 9 has an overhanging portion
. l
1 I, on the inner face of which is formed one mem
mission gearing,‘ particularlytransmission gear,
ber 1270f an-overrunning clutch. Rotatively
ingsfor use in connection with self-propelled vehicles; and has, for one of its objects,» the provi
mounted on the head 9 is a ring gear member
13, having interposed therebetween and the head,
sion of a speed-changing transmission gearing
anti-friction rollers l4, and held against axial ,
which shall be automatically thrown into opera
displacement on, the head by suitable expansion
rings I5—l5., The overhanging portion of this
tive relation with the driving and'driven shafts
when one Of said shafts reaches a predetermined
ring gear member [3 is provided with a ring gear
[6 of ,a planetary gearing, and this overhanging
> More speci?callypmy'invention relatesto an 10, portion is also provided with a series of notches
speed.
'
improvement in aspeed-changing gearing of the
,, or
' planetary gear type, which shall drive the driven
*shaft; when certain gpredetermined conditions
ariseat‘ a greater speed than that of the driving 15
> shaft.
» It is an object of my inventionto provide a
minimum.
d
-
a
-
a toothed engagement, as at [9, with the end of
the drive shaft 2, being thereby rotatively fixed
on the driveshaft. Interposed between the mem
20 bers l2 and i8 are clutch rollers '20, the arrange
.mentof-the» cams on the member I8 being such
-
that when the driven shaft _3 tends to voperate
have illustrated an embodiment thereof .in the
,-
;
'
a cammed member [8 which is splined to or has
v
‘
of'disclosing' my invention, I For the purpose
accompanying drawings, in which
ll forming one portion of a dog
Another member of the overrunning clutch, of’
which the portion l2 forms one part, comprises
structurehaving the characteristics above dis
closed, which will reduce the cost'of construction
andxrassembling' of the various parts thereof to a
openings '
clutch.
at a speed greater than that- of the driving shaft
‘ 2, the ‘clutch will overrun; but when the driving
Fig. 1 isa side elevation, partially in section, of 25 shaft
_ 2 becomes a driving
_
membehthere will be
a tendencyfcr the clutch to engage.
~
“Fig. 2 is a transverse section, taken on‘the’line
Associated with the ring gear I6 is a sun gear
a transmission embodying I my invention;
2—2 of Fig; 1;
q
,.
2|” surrounding the drive shaft 2 and having a v
r
Fig. 3 is a detailed plan view of a means for ad
justing the speed at which the gearing throws into
operation;
7
1
I
,
3
,
,~
toothedengagement, as at 22, with the front wall
30
Fig. 4 is a partial transverse section on .the
axial displacement of the sun gear. Preferably
this toothed connection'between the wall 23 and
I line 4-4 of Fig. 1;
Fig. 5 is a section on the line 5-5 of Fig. _1;
_
Fig. 6 is a view similar to Fig. 2, illustrating a
modi?cation of the invention shown in Figs. 1,2
of the casing. ~_ Suitable split rings 24 engaging
in the notches in the teeth of the sun gear and
disposed on either side of the wall 23 prevent
-
35
the sun gear 2! is a slightly loose, connection, so
that to a limited extent there may be a radial
displacement. of the free end of the sun gear.
vInterposed (between the sun’ gear and the ring
in Fig. 2, illustrating an additional modi?cation;
gear is a plurality of pinion gears 25 adapted to
and ’
the block. 40 mesh respectively with the teeth of the sun gear
and 5; -
'
Fig. 7 is a'view similar to the view illustrated.
Fig. 8 is a perspective view of one of
and the teeth of the ring gear. , These pinions
ing rings illustrated in Fig. '7. V
‘are rotatably. mounted on hollow stub shafts
26secured in a pinion cage 21 at one end, andin
In the embodiment of the invention illustrated,
. a casing ‘l is provided, into which is projected, in
a ring, portion 28 of said pinion cage atthe
axial alignment, a driving shaft 2 and a driven 45 other end. This pinion cage,’ has asplined or
shaft 3. The driven shaft is preferably piloted,
toothed connection at 29 with the driving shaft
as at 4, in'the driving shaft, suitable anti-fric-_ 1 2 and, .on the periphery of its hub,-thiscage is
tion rollers 5 being interposed betweenthe two
provided witha series of dog-receivingnotches
shafts. Suitable ballbearings B and ‘I are ‘pro
30.
,
vided in the ends of the casing'for the respective
shafts 2 and_3, and the driven shaft is provided 50 ‘The front face of the hub II is provided with
a radial recess or notch 3|, in radial alignment
with the usual coupling 8' for connecting the
with the notches or recesses I‘! in the ring gear
same to the propeller shaft of the vehicle.
' ’
member l3 andwith the notches'30 in the hub
Within the casing and on the shaft 3, I mount
' of the pinion cage2l. This recess receives a re.
a head 9 which is splined to the shaft 3‘, as at H),
1 so that the headmay be rotatively ‘?xed on the
55
dially. movable dog a: Vhavingits Outer edges;
3
2,403,781
4
and its'inner edge 34 cammed in a counter-clock
between the driving and driven shafts. The
overrunning clutch, therefore, provides for an
emergency driving connection between the driv
ing and driven shafts, if for any reason the dog
wise direction. This dog is biased in its retracted
position, and in a' position to engage in one of
the notches 30, by a spring 35. This spring is
coiled around a ?xed pin 36 secured in a recess
32 should not engage in one of the notches or
in the head II, and one end 31 of the spring
engages in an opening 38 in the dog 32. The
opposite end of this spring bears in a notch at
one end of pin 39, the opposite end of which is
recesses [1.
The sun pinionand ring gear are pf: the helical
type which,‘ together with't'he “free” ‘connection
between the sun gear and the casing, provide for
tapered, as at 40, on two sides thereof, which
extremely quiet operation of the gearing during
taper ?ts within a notch in the end of an ad
operation.
a
justing screw 4]. By adjusting the screw 4| it is
In the structure illustrated in Fig. 6, I have
apparent that the tension of "the spring 35 may
shown van additional dog 42, similar in construc
be varied to suit the desired conditions.
tio'nv andoperation to the dog 32. This additional
In operation, the dog 32 is normally retracted 15 dog "'42 is ‘biased in its retracted position through
into a position wherein it is in engagement with
the instrumentality of a spring 43 coiled on a
one of the notches 30. Therefore, a direct drive
pin 44 and having one end bearing on an adjust
will be established from the driving “shaft 2
ment‘pin’45, in turn bearing upon an adjustment
through the pinion cage hub 21, the dog 32, the
screw 46, the construction being similar to the
head H, to the driven shaft 3. ‘Under these cir 20 tension-ing arrangement ‘for the dog 32. In
cumstances, the ‘ring gear 16 is in disconnected
actual operation, IT?n‘d‘th‘at ‘it is preferable to
relation ‘to the head I], and, therefore to the
have the adjustment of one ofthe'springs?‘and
driven-shaft-3, so that, although the pinion cage
‘43 different than that‘ of ‘theother, so that one
is being rotated bythe driving shaft 2, therefore
causing a rotation of the pinions- 2'5 and Ya ro
tation of the ring gear I6,<this movement of the
of the dogs will throw iouit r'into'engaging position
The spring 43, for in
stance, might be tensioned to throw out when
25 sooner than the other.
:ring ‘gear 16 will have no ‘eifect on the driven
the speed of the ‘vehicle reaches, say, 40 'miles
an hour, and the spring 31 tensioned so that the
shaft. When, however, the speed of ‘the driven
shaft reaches ‘a predetermined point or the point
;at ‘which the centrifugal “force will cause the dog 30 dog 32 will throw out'when the vehicle r-reaches
1a speed of,~say, 45 miles an hour. Bear in mind,
132 ‘to move radially outward against the action
however, that the clog -42 vwould not ibe~actually
dlf the spring 35, the dog will be movedeut ‘of
engaged’ in its notch until -after1'the-’d'og 32 had
engagement in one ‘of the'rece'sses 30 and in ‘a po
thrown out, due to the fact that there" is aa‘lc'om
sition‘t'oengage in one of the notches H of the
paratively wide difference in the relative speed
rin‘g'ge'ar member I3. :Due t'o'the driving ‘effect
of
the member 43 and the dog, ‘and ;it is “only
:o‘fthe ‘shaft '2 on the ring-gear under these cir
when
‘the speed of ‘the dog member or head ~l l
cumstances, ' the ring-‘gear ‘ l 6 will be rotatinglat
and the ring gear ‘member 1 3 approach synchro
~a "greater speed than that of the head ‘H, and,
that the dogs will engage; ‘Likewise-due to
"of/course, the dog 32. Due tothecammed shape 1 nism
the
fact
that the tension of the spring-331 is
~‘of‘th‘evouter-end of the‘dog, this dog will ratchet
past-the recesses and no engagement of-the dog
in‘the ‘recesses will ‘take place. As soon, how
“ever, 'as 1the speed of the driving shaft 2 is re
duced toithe point where the ring gear member
40
‘greater thanthe tension-of the spring 43, the dog
~32 will 'disengagesooner than the ‘dog v42. How
ever, due to the ~-construction of the inner ‘face
of the dog, the-dog 32 ‘will not engage until the
hub 27 and the head 1H .rea'ch" substantial syn
I3 is rotating insubstantial synchronisrn-with-the
l'chroni-sm‘, and 'by this time the ‘dog. 4-2 *wi-ll ‘dis
‘head -H and the dog 32, the dog -will slip into
engage.
"one 'o‘f-the do'g'openings H in the-ring gear'mem
‘*be‘r “and driving relation vbetween the driving
'
r
In some instances it "is ‘desirable to provide
blocking means for the dog ‘3'2or even‘for both
of the dogs 32 and 42, although in the ‘structure
'illustratedI have only-shown it as'applied'tothe
snafu “and the-driven shaft 3 will be established
through the planetary ‘gear drive with the driv
ing ‘shaft 2. operating at -a considerably lower
one dog construction. In order to “accomplish
speedthan that of the‘driven shaft 3.
this, ' I provide "a blocking spring‘ 41 ' which is split
If, at ‘any ‘time, it ‘is desirable to drop back
and-the split ends {separated a 'su?icient 'distance
‘into the direct drive relation between the ‘shaft
2 ‘and the shaft 3, it'is merely ‘necessary to lower 55 ‘to receive the dog 32. This "spring-‘clamps"around
the hub 21 with a certain amount of frictionaren
thespeed at which the shaft ‘3 is being driven to
'gagement with "the hub 'and‘i's permitteda lim
:the point at which the centrifuga1'force'willnot
ited movement 'relative‘to ‘the hubby a spin v48
--be 'su?iciently great to overcome ‘the spring 35
operating in an elongated slot 49 in the spring.
and ‘the dog 32 will be retracted‘u'nderithe in
A~similar spring '58 surrounds the head H,
?uence ‘of the spring 35 intoa position to en 60
being split and having'its*splitendsjgpaced to ac
gage in one of the recesses 30 and as soon as
commodate the “dog :32. This springhas ~an'ex
the two shafts approach substantial synchronism
pansion friction bearing on‘the ring gear‘member
the dog :will dropinto engaging position to es
i3 ‘and is given'a limited movement ‘relatively
tablish' a direct drive.
> Under ordinary circumstances, the above is
the vnormal operation of the device. However,
there may bea time at‘which the dog 32 is thrown
outwardly under the in?uence of centrifugal
Tforce‘to- disenage it from the hub of the cage 27,
and the speed of the driving ‘shaft “instead of
being decelerated to permit engagement" of the
‘dog
one of the recesses or notches I11, is~ac~
“celerated. Under these circumstances vif there
were not the provision» of the-ioverrunning clutch,
there would be no driving connection established
65 "
thereto by'an elongated "slot'5l in "which engages
theopposite ends of the pin“. _
Bearing ~in~mind that “Fig. '7 vis ‘a "sectional'vi'ew
l'ookingatthe structure from the‘rear, after ‘the
vdog 32 has thrown out "into ~engaging position
when the operator reduces‘ the "speed of ‘the‘driv
ing shaft‘ to insure engagement of the dog inv one
of its ‘notches in the member {3, there'will be
a ‘relative movement between ‘the hub ‘21, on
which the ‘spring ‘4115 mounted, and‘the head l‘l,
so that the sprin'gvwill tend'to‘move'in“a'clock
wise direction, looking at Fig. 7, to the limit of
‘ 2,403,781
:5
driven vshaft, one of said members engaging said
itsslotj 49‘ and project-one‘ end of the spring: into
ring gear clutch member to connect said ring
the path‘ of the dog,‘v preventing it from-return
gear. to the driven shaft when the speed of the
driven shaft reaches a predeterminedpoint ‘and
directly connecting said shafts when the speed
of the driven shaft falls below a given point.
:4. The, combination,with a driving shaft and
a driven shaft,_of a planetary gear for driving
said. driven’ shaft at a different speed thanthat
of-the. drivingshaft and including a ring- gear
vvand a, piniongearcage, a hub onsaid cage driv
inglyconnected with said driving shaft and form.
ing one-member of a clutch, a second member of
ing into engagement in its‘ notch in the hubl'l.
Howeven'Yas soon as the speed of thepartsqbe
comes such that the
dog willlen'gage in one of -‘
the notches l1, thehub 21 will be vrotating slower
than the member l3 and as soon as the speediof
the vehicle is allowed-to drop- down below the
‘throw‘out' speed of the .dog and the dog moves
out of its ‘engaging position in-the slot [1, the
speed of the headwillotheng cornmence'to ap
proach synchronism with the speed ofthehub
-2'|,- dragging the-spring aback? to'its initialposi
tion,~soth'at the dog mayre-cngage,
- a , clutch drivingly connected
»A spring 50. operates in su' stantially the same
~manner} ‘ Under normal conditions with the
'
ememberv
l3 disengaged ‘ from the headlll; the
will berotating at a greater speed
.members.
‘than the head ll, tendingv to ,Vdragthe spring. .to
‘spring and the dog-has a tendency to reduce the
friction’ to ‘such an extent that a'surer action. of‘
- the spring is provided.i
'
'
'
for adjusting the point at which said means will
'
, operate inieither direction.
mission, ?led June s, 1935, hearing 'Serial No.
.
'
'
_'
a
_
.
35
.
1:-
,
I
I
a station
that of thejdriving shaft and including
having a clutch
40
ary Sun gear and a ring gear
‘member drivingly associated‘ therewith, and a
clutchhaving one member
' centrifugally operated
drivingly associated with the driving sfhaft'and
vanother‘me'mber drivingly associated with the
trifugally operated clutch having one vmember
another member drivingly associated with the
45 driven shaftandincluding means for rotatably
shafts to establish a direct drive between said
shafts and in another position engaging said ring
connect said ring gear.
to said driven shaft and establish a drive for said
‘ gear ‘clutch member to
_
_ _
2. The combination, with a driving and ‘driven
shaft, of a planetary gearing for driving said
driven shaft at a different speed than that of the
driving shaft and including a stationary sun gear
.
ed sun gear, pinion gears, a pinion carrier con-V
nected to the driving shaft, and a ring gear ro
tatably mounted on the driven shaft, and a cen
- drivingly associated with the driving shaft and
driven shaft, one of said members in one posi
' tion directly connecting’ said driving and driven
driven shaft through said gearing.
‘other, of a planetary gearing; for driving the
' the driving shaft, including a stationarilymount
gearing I for ~dI'1V
“ing said‘ driven shaft ata different speed than
6; The combination, with’driving andrdriven
shafts axially stationary and one piloted in the
driven shaft, at a speed different from, that of,
,
1.‘ The combination, with a driving shaft and
'a ‘driven shaft,‘ of a- planetary
‘
said members having means engaging said ring
gear clutch member to connect said ring gear to
the. driven-shaftwhen the speed of the driven
shaft reaches a predetermined point anddirectly
connecting said shafts when the speed of the
'50 : driven shaft falls ‘below a given point, and means
my copending application'for. OVerdrive'trans
'Iclaim as'my invention:
"
ingly associated with the driven shaft, one of
The present application is 'a'continuation of
‘25,261, allowednpril 726, 1940.
'
clutch member. and a centrifugally operated
‘clutch havingv one member; drivingly' associated
with the driving shaft and another member driv
32' to engage, the ‘spring-will be dragged free, so
that the notch will be free to receive the dog 32.
theend of the-tensioning spring ‘311's adapted'to
'
‘ stationarysun gear and a ring gear having a
jceiving'n'otch ll. As the parts tend to approach
synchronism, however, in order to permit the dog
-~bear. 'I find that this rolling action between the
>
driven shaft,v of .a planetary gearing-including a
notch El and; blocking the .dog re“ ‘
I- have illustrated a further modi?cation in Brig. :
"l, wherein I have-provided a roller :52 on which
._
-, 5. The combination, with aidrivingshaft and a
‘ "member .13 -
' the’ limit 'Of its
to the ‘ring gear,
anda centrifugally operated clutch member driv
iinglylconnected to the driven shaft and engage
vable with either of said ?rst-mentionediclutch
r. _
locking said ring gear ‘on said driven shaft-.,
7. The combination,with driving-and driven
shafts axially stationary and one piloted in the
other, ‘of a planetary gearing, including .afsta
tionarily mounted sun gear, pinion gears, a pin
ion gear carrier connected to the driving shaft,
and a ring gear rotatably mounted on said ‘driven
shaft, a clutch'member connected to the driving
shaft, a second clutchimember connectedto the
ring gear, and a centrifugally operated clutch
member mounted on said driven shaft for en
gagement with either of said ?rst two clutch
and av ring gear, and a centrifugally operated
members.
.
8. The combination, with a driving and a driven
clutch, including a clutch member connected ,to
the driving shaft, a clutch member connected to 60 shaft having an annular rim~~goverhanging said
driving shaft and provided with a radial slot, a
the ring gear, and a centrifugally operated clutch
centrifugally Y‘ operated radially movable dog in
I
to the driven shaft and which,
member connected
_
engages the driv
ing shaft clutch member to establish a direct
. when in its retracted position,
said slot, a ring gear rotatably mounted on said
’ rim and overhanging the driving shaft, and hav
drive‘ between said shafts, and inits projected 65. ing dog-engageable portions in radial alignment
the ring; geara ‘ clutch
member
to
‘position, engages
‘
I
_
v
' establish a drive between said shafts through said .
gearing.
\
V
.
with said dog, a sun gear stationarily mounted
and surrounding ‘said driving shaft, pinion gears
between said sun and ring gears, and a pinion
2,3."The combination, with a driving shaft and
,-carrier»'connected to said driving'pshaft and hav
alstationary sun gear and a ring gear having'a
clutch member associated therewith, and a cenj
vided withv dog-engageable ' portions in radial
V alignment with saidv dog whereby said dog may,'in
one position, lock said ring gear to‘ said rim and,
ing a portion projecting within said rim' and pro
. a driven shaft, of a planetary gearing including 70
, trifllgally operated clutch having one member
.._idriving,1y- associated withthe driving shaft and
,1 in another ' position,
Tan-d‘. driven‘ shafts.
@nQther Yinember ' :drivingly associated ' with ‘the: 75
directly qgeneqt Said driving
2,403,781
:9. ‘The combination, with a driving and driven
shaft, a head on said driven r-shaft having ‘:an
annular rim overhanging said :dr'iving shaft and
provided with an internal overrunningnlutch sur
face and a radial slot, a scentrifugally operated
dog "radially movable .in :said slot, a ring ‘gear
rotatably mounted on said head and overhang
rity of igeari-elementswone .of vwhich is ‘an annulus
gear element, means providing a non-releasable
,drivenconnection between said driving ,shaft and
another {gear element of said planetary gearing,
and a .speed responsive ‘clutch controlling v‘said
;ing the driving :shaft and having dog-,engageable
overdriving means, said, clutch including clutch
ing structures {respectively drivingly connected
driving shaft vand having .aportion projecting
14. In a drive for a motor vehicle having ‘a
l-said driven ‘shaft at a ‘different speed than that
controlling :said 'overdriving means, said clutch
to the driven shaft and to the annulus gear ele
portions in radial alignment with said dog, asun
of said planetary gearing, said .clutch being
gear :stationarily mounted and surrounding :said 10 tment
adapted *to automatically connect .said shafts
driving- shaft, pinion gears between-said sun and
through said planetary gearing.
ring gears, a :pinion vcarrier connected ‘to :said
power driving shaft and ashaftdriven therefrom
‘within said rim and provided with dog-‘engage
—a‘b1e portions in radial alignment with .said ‘dog :15 and adapted to drive said vvehicle, "-OVerdriVing
‘means including planetary :gearing ‘between said
whereby ‘said dog may, in one position, “lock .said
shafts :for driving .said driven :shaft at, ,a speed
ring :gear to said headand, in another position,
greater than the speed of the .drivingzshaft, vsaid
directly connect said driving and driven shafts,
planetary .gearing including a plurality of gear
‘asecond overrunning clutch memberfsurrounded
by said rim connected to ‘the drivingshaft and 20 elements one of which is an annulus gear ele
ment and another of ‘whichis a planetary gear
provided with overrunning clutch surfaces and
element
having a carrier therefor, means pro
roller clutch members'interposed between the two
viding a continuous driving connection between
‘members of said overrunning clutch.
said driving shaft and the carrier for said plane
10. The ‘combination, with a driving shaft and
a driven shaft, of a planetary gearing for driving 25 tary gear element, ‘and a speed responsive clutch
including clutching structures respectively vdriv
of "the driving shaft, ‘a centrifugally operated
ingly connected to the driven shaft ‘and to the
clutch :having one member drivingly associated
annulusgear element of said planetary gearing,
with the driven member and another member
said
clutch being adapted to automatically Gon
drivingly associated with the planetary gearing 30
nect said shafts through saidplanetary'gearing
for establishing a drive between said shafts
in response to a predetermined-speed of rotation
through said gearing,’ and blocking means for pre
of at least one of said shafts.
venting the engagement ‘of the members of said
15. The combination, with a driving shaft and
clutch moved into blocking engagement by the
a driven shaft, of a planetarygearing fordriving
relative movement between the clutch members 35 said
driven shaft at .a speed different from that
and out of ‘blocking position when the clutch
of the driving shaft and including a ring gear
members approach synchronism.
having a clutch member ,drivingly associated
11. The combination, with‘a driving shaft and
therewith, a stationary sun gear, .centrifugally
a ‘driven ~shaft, of a planetary gearing for driv
operated clutching means drivingly associated
ing said idriven shaft at a different speed than .40 with one ‘of said shafts ‘adapted :to engage said
that of the driving shaft, and including a station
ring gear .clutch'member for connecting the .ring
ary sun gear and a ring gear, a centrifugally op
gear to the driven shaft to-establish a drive .be
‘erated clutch which in one position directly con
tween said shafts through-said_gearing,.centrifu
nects said driving and driven shafts to establish
,gally controlled ‘means rdrivinglyqassociated with
,a direct drive between said shafts and in another
position connects the ring .gear to the driven
shaft to establish a drive for said driven shaft
through said ‘gearing, and blocking means for
preventing the operation of said ‘clutch for di
rectly connecting said shafts moved into opera
tive position by the relative movement between
the members of the 'clutch'and out of Operative
position by the approach ofsaid members to syn
chronism.
one'of said shafts, and-means drivingly associated
with the otherofsaid shafts forlcooperation with
said 'centrifugally controlled means for directly
connecting said shafts to establishadirectidrive
,50
12. Thelcom'bination, with a driving shaft and '
a driven ‘shaft, ‘of a planetary gearing for driv
ing said driven shaft at a different speed than
that of the driving shaft and including a sta
tionary gear and a ring gear, dog engage'able
members on said ring gear, dog engageable-mem 1,60
bers on said driving shaft,aradially movable dog
for engagement with either of said members on
said driven shaft, and blocking means moved
‘into blocking position between'said dog-engaged
members on thedriving shaft ‘and said dog when
the dog is ‘moved radially outward into engag
ingpositionfor engagement with the dog engaged
members on the'ring gear.
13. ‘In a drive for a motor vehicle having a
{power driving shaft and a shaft driven there-1
from and adapted to ‘drive ‘said vehicle, over
driving _means including planetary gearing be
16. The combination with a .drivinglsha‘ftand
a driven shaft, of ,a planetary v.gearin-gvforIdrliv
ing said driven shaft at a different speedfrom
that of the drivingshaft and ‘including astation
arily mountedlsun gear, anda ring gear ‘having
a clutch member .drivinglyassociated therewith,
a centrifugally operated clutch member drivingly
associated with one of said shafts adapted to en
gage said ring gear .clutch member-for connect
ing the .ring gear to the 'last .mentioned shaft
when the clutch member is .1in lits projectedpo
,sition, a centrifugally controlled clutch member
drivingly associated with one of said shafts and
a second clutchmemberdrivingly associated with
the other of said shafts and =engageable‘by said
centrifugally controlled iclutch member for di
rectly connecting said .sha’fts when said ,second
clutch member is in its retracted position.
17. Power transmission mechanism including‘ a
driving shaft, a toothed clutch member coaxial
therewith and connected “to rotate ‘therewith, a
gear train driven ‘from said driving-shaft "and
including a gear coaxial with saidrshaft and'ro
:tween ‘said shafts ‘for driving - said‘ driven ‘shaft vat
a speed greater ‘than ‘the speed‘o'f the ‘driving
shaft, said planetary gearing-includinga:plural
therebetween.
575
~tating~ at a-speed different from that of saidshaft,
a second clutch 'member arranged to rotate ‘with
.saidgear, a driven shaftl'coaxialwith-theidriving
'
- 2,403,781
10
carried by said coupling member and operableto
shaft, ajcoupling member rotatingzwith said driv
urge, it“ to coupling; relation with the second
on‘ shaft and arranged to, couple said driven shaft
to eitherthe' ?rst-named or the’ ‘second-named
clutch _' member, centrifugal weights carried by
said coupling member'and operable to urge it to
named clutch member,rspring 'meansarranged
to urge the coupling member toward coupling re
lation with said ?rst-named clutch member, and
means arranged to, block the coupling member
coupling relation with one of said clutch mem
after'it has ‘been moved out of coupling relation
bers, ‘spring [means arranged to urge the cou-,
pling member, toward coupling relation with the
with either clutch member and prevent it from
coupling with the other. clutch member until the
other of said clutch members, and means ar
relative rotary movement between itself and-such
other clutch‘member reversestits direction.
ranged to positively block the coupling member
after it has been moved out’ of coupling relation
21. Power transmission mechanism, including a
with'either clutch member and prevent ,it from
coupling with the other clutch member until- the
speed of the driving shaft-has been vchangedto
bring the speed of ‘such otherclutchmember to
substantially that of the'coupling, member.
‘ driving shaft, a clutch member; coaxialtherewith
, and connected to rotate therewith, a; gear-train
15
y 18. .Power transmission mechanism including a
driving shaft, ,a toothed ‘ clutch member ' coaxial
therewith and connected to rotate therewith, a
gear train driven from said driving shaft and
including a gear coaxial with saidshaft and ro
tating, at a speed different from that of said shaft,
a second clutch member‘arranged to rotate with
said gear, a driven shaft coaxial ‘with the driving
shaft,‘ a coupling member rotating with said. 25
driven shaft and arranged to couple said driven .
shaft‘to either the ?rst-named or thesecond
named clutch member; Centrifugal Weights car
ried by said coupling, member, and operable to
urge it to coupling relation with onegof said clutch 7;
driven from said driving shaftiand including a
gear- coaxial with said shaft androtatingat-a
speeddifferent from‘ that ofsaid-shaft, a" second
clutchmember arrangedlto rotatewith said gear,
a‘ driven shaftcoaxial with the, drivinglshaft, a
coupling device ‘rotating-with said driven shaft
and arranged to couple saiddriven shaft to either
the ?rst-named or the. second-named - clutch
member and including; . centrifugal means ‘oper
ableto urge it toicroupling-jrelation with, the fas
ter-rotating of said- clutch members, said coupling
device including also. spring means arranged to
urge it toward coupling relation with ,the other
of said clutch members, and means arranged to
positively block the coupling device after it has
moved-out of coupling relation with either, clutch
member- and prevent it, from coupling with'gthe
other clutch member until the speed of the drive
' pling member toward coupling relation-with the I t-ing shaft has beenchanged to bring thespeedlof
other of; said clutch members, and‘ meansar
such other clutch member to substantially that of
ranged to positively block the coupling member
the coupling'device.
’
-'
after-ithasbeen moved out of ,coupling relation
, 22.v Power transmission mechanism including‘ a
with ,- either clutch :member and prevent it from
driving shaft, a clutch member coaxial therewith
coupling with the otherclutchmember untilthe
and. connected to rotate therewith, a gear train
' speed of the driving shaft has-been changed and
driven from said driving- shaftv and includingna
consequently the‘ relative rotary movement be
gear eoaxialawith said shaft ,and rotatingat-a
tween the coupling member and such other clutch
speed‘ different from'that of said shaft, a second
member reversed-in direction. 7
_
r
,
clutch member arranged to rotate with. said gear,
V r 1,9. Power-transmission mechanism including a
a-driVen-shaft coaxial withrthe driving shaft, a 7
driving ,shaft, a ‘driven shaft coaxial therewith,
coupling. device rotatinggwithf said driven ,shaft
a planetary gear train comprising a stationary
andv arranged to couple ,said driven shaftto
sun; gear, an internal ring gear and a. set of plane
either the ?rst-named ‘or, ,the , second-‘named
tary pinions, a carrier for the pinionsconnected
clutch 'member, said,’ coupling, device including
to rotate with one of said shafts, a clutch mem
centrifugal means operable to urge it. toward
ber rotating with saidv one shaft,- a shiftable
coupling relation with the , faster-"rotating clutch
clutch member connected to rotate with the other
membersspring means arranged to urge the cou
shaft, a clutch member-carried by the ring gear, _
speed-responsive-means driven at a speedgpro
portional to that of the driven shaft, said speed;
~,responsive means being arrangedto cause the
shiftable clutch member to couple with the ?rst
named clutch memberand thereby connect the
two ‘shafts togetherdirectly or to couple with the ‘
clutch member carried by the ring gear so as to
cause the driven shaft to be driven through the
planetarygear train, and ‘means for controlling
the speed-responsive means so arranged that the
‘driven-shaft speed at which the. shift is made
in one direction overlaps that at which the shift
is made‘in‘the other direction.
-
,
~ '
, , ~20. vPower transmission-mechanism including a
driving shaft, a toothed clutch Zmember coaxial
therewith and connected'to rotate therewith, a
member, - said- eoupling. device including ,also
spring means arranged-to urge it-towardcoug
pling relation with. the other of said clutch mem
bers, and means arranged. to block the. ‘coupling
device after it haspmoved out-of coupling't'relae
tion with either clutch 'memberand prevent it
from coupling with the other clutch member .un
-.til:_-the- speed of the 1 driving shaft vhas<been
changed, and ' consequently ,the ,relative rotary
movement between the couplingfdevice and such
other clutch member is reversed in direction.
123. Power transmission mechanism including
adriving shaft, a vclutchrnerr'iber coaxial there
with and connected to rotate‘ therewith, a. gear
train-driven, from said driving shaft and includ- ‘
ing agear coaxial vwithsaid shaft and rotating
at: a speed different from that-of said shaft, a
second, clutch member, arranged _ to rotate .with
planetarygear train driven from said driving
said gear, adriven- shaft coaxial with .the'driv
shaft and including a ring gear coaxial with said
ding-shaft, a, coupling‘ device rotating with said
vdriving shaft and rotating at a speed higher than
that of said shaft, a second clutch member car, .6, driven shaft. and arranged to couple said driven
shaft to either. the ?rst-named or the second.
ried by said ring gear, a drivenshaft coaxial with
the driving shaft, a coupling" memberrotating ‘ named clutch member, said coupling device in
cluding centrifugal: means rotating coaxiallyv with
with the driven shaft and‘arranged to couple said
driven shaft to either the ?rst-named or the sec
said shafts ‘and operable to urge it toward cou
_ond§named clutch‘ member, centrifugal weights 375 pling relation with the faster-rotating clutch
11
2,403,781 -
member, said coupling device‘ including also
12
disengaging: position into: an engaging position,
the other of said structures havinga slot adapted
spring means arranged to urge the coupling de
vice toward coupling relation with the other of
to be engaged by said dog when the same is pro
said clutch members, and means arranged to pos
jected into engagingv position to lock said struc
itively block the coupling device after it has 5 tures together against‘ relative rotation, a ring
moved out of’ coupling relation with either clutch
surrounding said slotted structure having an
member and prevent it from coupling with the
opening adapted to coincide with the slot in said
other clutch member until the speed of the driv
slotted structure, said ring being movable by
ing shaft has been changed and consequently
frictional engagement between the parts to move
the relative rotary movementvbetween the cou
pling device- and such other clutch member is
reversed in direction.
_ 2'4. Ina power’ transmission for automotive ve
the slot therein out of‘ coincidence with the slot
in the slotted structure to prevent the dog from
projecting into said slot and being movable by
frictional engagement-between the parts to move
hicles, a driving shaft, a driven shaft, a rela
a slot into coincidence with the slot of‘ said struc
tivel'y'v slow speed‘ driving means for- driving the 15 ture in response to" relative directional change of
vehicle from said driving shaft, a relatively fast
rotation of said structure to permit said" dog to
speed driving'means for driving said driven shaft
at‘ a‘ speed’ greater than that of‘ the slow' speed
driving means and including a‘ pair of relatively
rotatable structures, at least one of which is
adapted for rotational change from one direc
tion to the opposite direction relative to any
enter the slot of’ said slotted structure and lock
the structures together against relative rotation
and‘establish said fast/speed drive.
27. In a power transmission for automotive ve
hicles, a driving shaft, a driven shaft, a relatively
slow speed driving means for driving the vehicle
from said driving shaft‘, a relatively fast speed
driving means for driving said driven shaft at a
point on the other structure, one of said struc
tures carrying a; dog adapted to be projected
from a‘ disengaging position to an engaging po 26 speed greater than that of the slow speed driving
sition, the other of said structures having a slot
means and including a pair of’ relatively rotat
adapted‘ to be engaged by said dog when pro
table structures, at least one of which is adapted
jected into engaging position to lock said struc
for rotation‘ changing from one direction to the
tures together against relative rotation and es
opposite direction relative to any point on the
tablish said, fast speed drive, and means sup 30 "other of said structures, one ofv said structures
ported by‘ one" of said‘ structures and engaging
carrying a dog and adapted to be projected from
the‘ other of said structures for releasably pre
disengaging position into an engaging position,
venting'the dog from projecting to said engaging
the other of said structures having a slot adapted
position, said preventing means, in response to a
to be engaged by said dog when the same is ‘pro
change of direction of relative rotation of the 35 jected into engaging‘ position to lock said struc
structures, operating to‘ release the dog for pro
tures against relative rotation and establish said
jection into engaging position.
fast speed drive and a ring interposed between
25'. In a power transmission for‘ automotive
said structures having an opening adapted to co
vehicles, a driving shaft; a, driven shaft, a rela
incide' with the slot in said slotted structure, said
tively slow speed driving ‘means for driving the 40 ring being movable by frictional engagement be
vehicle from said driving shaft a‘ relatively fast
tween the parts to move the slot therein out of
speed‘ driving means for driving said driven shaft
coincidence with the slot in the slotted structure
at a speed greater than that of the slow'spee'd
to prevent the dog from projecting into said slot
driving means and; including‘ a pair of’ relatively
and being movable by frictional engagement be
rotating structures; at least one of which is
tween the parts to move its slot into coincidence
adaptedfor. rotational change from one direc
with the‘ slot of said structure in response to a
tion to the opposite: direction relative to any
relative directional change of rotation of said
point on theother of said structures, one of‘ said
structures to permit said dog to enter the slot of
structures carrying a dog adapted to be pro
said slotted structurean'd lock the structures to
jected’ from disengaging position to engaging po 50 gether against relative rotation.
sition, the other of said structures having'a slot
' 28. In a power transmission for automotive ve
adapted to be engaged by said dog when pro
hicles, a driving‘ shaft, a driven shaft, a relatively
j'ected into‘ engaging position to lock said struc
slow'speed driving means for driving the vehicle
tures together against" relative rotation and es
from said driving shaft, a relatively fast speed
tablish" said fast speed drive, a latching element 55 driving means for driving said driven shaft at a
‘supported by one of said'structures and engag
speed greater than that of the slow speed driving
ing the other of said structures, said latching
means and including a pair of relatively rotatable
element preventing the dog against projection
structures relatively drivingl'y connected to a driv
into said engaging position and said latching'ele
ing ‘member and a driven member, at least one
ment. moving torelease the dog for projection 60 of said structures‘ being adapted for rotational
into engaging position'in response to the change
change from one direction to the opposite direc
in direction of relative rotation of said struc
tion relative to any point on the other of said
tures;
structures, one of said structures carrying a‘ dog
26. In'a powerv transmission for automotive
adapted to be projected from a disengaging posi
vehicles, a driving shaft, a driven shaft, a rela
tively slow-speed driving means for driving the
vehicle from said driving shaft, a relatively fast
speed. driving-means for-driving‘said driven shaft
at‘ a speed greater than the slow speed driving
65 tion to an engaging position, the other of said
structures having a slot adapted to be engaged
by said dog when projected into engaging posi
tion to lock said structures together against rela
tive rotation, means supported by one of said
'means and including a pair of relatively rotat 70 structures and engaging the other of said struc
able structures, at least one of which is adapted
tures for preventing the dog from projecting to
for rotational change from one direction to the
said engaging position, said preventing means,
opposite direction relative to any point on the
in response to a change in directional relative
other of‘said structures, one of said‘ structures
rotation of the structures, operating to release
carrying‘ a‘ dog adapted to be projected from a
_ the dog for projection into engaging‘ position, and
it
2,403,781
13
automatically operated clutch means for driving
the driven shaft from the driving shaft during
the interval said dog is prevented from projecting
~
14
speed driving means for driving said driven shaft
at a speed greater than that of the slow speed
speed greater than that of the slow speed driving
driving means and including a pair of relatively
rotatable structures, at least one, of which is
,adapted for rotation changing from one direc
tion to the opposite direction relative to any
point on the other of said structures, one of said
structures carrying a dog adapted to be projected
from a disengaging position into an engaging po
sition, the other of said structures having a slot
engaging position to engaging position, the other
in said structures, said ring ‘being movable rela
into said engaging position.
29. In a power transmission for automotive ve
hicles, a driving shaft, a driven shaft, a relatively
slow speed driving means for driving the vehicle
from said driving shaft, a relatively fast speed
driving means for driving said driven shaft at a
adapted to be engaged by said dog when projected
means and including a pair of relatively rotatable
into engaging position to lock said structures to
structures, at least one of said structures being
gether against said relative rotation and estab
adapted for rotation changing from one direction
lish‘ said fast speed drive, a ring supported by
to the opposite direction relative to any point on
the other of said structures, one of said structures 15 said slotted structure and provided with a slot
“adapted to coincide with the dog-receiving slot
carrying a dog adapted to be projected from dis
tively to said slotted member'for a limited dis
tance to block the entry of said dog into the
ing position to' lock said structures together 20 slot of said member and being movable in re-'
sponse to a relativedirectional change of rota
against relative rotation and establish said fast
tion of said slotted structure to permit said dog
_ speed drive, a latching element supported by one
of said structures having a slot adapted to be
engaged by said dog when projected into engag
of said structures and preventing the dogagainst
to enter said shot, said slowspeed driving means
projection into said engaging position and-said
including 7 an
latching element moving to release the dog for
projecting into engaging position in response to
the change in directional relative rotation of
said structures and» automatically ‘operating
means for driving the driven shaft from the'driv
automatically
operated
clutchi
ing shaftduring the interval said dog is prevent
ed from engaging in said slot.
dog is prevented from projecting into said en
7 vehicle from said driving shaft, a relatively fast
32. In a power transmission for automotive ve
hicles, a driving shaft and a driven shaft, a rela
clutching means for driving the driven shaft
from the driving member during the interval said 30 tively slow speed driving means for driving the
gaging position.
30. In a power transmission for automotive ve
hicles, a driving shaft, a driven shaft, a relatively
slow speed driving means for driving the vehicle
from said driving shaft, a relatively fast speed
driving means for driving said driven shaft at a
speed greater than that of the slow speed driving
speed driving means for driving said driven shaft
at a speed greater than that of the slow speed
driving means and including a pair of relatively
rotatable structures, at least one of which is
adapted for rotational change from one direction
, to the opposite direction relative to any point on
the other of said structures, one of said struc
tures carrying a dog adapted to be projected from
means and including a pair of relatively rotatable
a disengaging position into an engaging posi~
40
structures, at least one of said structures being
tion,
the other of said structures having a slot
adapted for rotational change from one direction
adapted to be engaged by said dog when the same
to the opposite direction relative to any point on I
,is projected into engaging position to lock said
the other of said structures, one of said struc
tures carrying a dog adapted to be projected from ' structurestogether against relative rotation and
a disengaging position to an engaging position, vp115 establish said fast speed drive, and a ring inter
‘posed between said structures and having an
the other of said structures having a slot adapted
opening adapted to coincide with the slot in said
to be engaged by said dog when projecting into
~
slotted
structure, said ring being movable by fric
engaging position to lock said structures together
tional engagement between the parts to move the
against relative rotation, and a ring supported by
slot therein out of coincidence with the slot in
said slotted structure having a slot preventing
the slotted structure to prevent the dog from pro
the dog from projecting into said ?rst-mentioned
' jecting into said slot and movable by frictional
slot, said ring being removed into released posi
engagement'vbetween the parts to move its slot
tion to permit said dog to enter said ?rst-men
into coincidence with the slot of said structures
tioned slot in response to a relative directional '
change of rotation of said structure having said .
dog-receiving slot and automatically operating
clutch means for driving the driven shaft from
the driving shaft during the interval the dog is
prevented from projecting into said receiving slot.
31. Ina power transmission for’ automotive ve
hicles, a driving shaft, a driven shaft, a relative;
1y slow speed driving means for driving the ve
hicle from said driving shaft, a relatively fast
in response to a relative directional change of ro
tation of said structures to permit said dog to en- ,
ter the slot and lock the structures against rela
tive rotation, said slow speed driving means in
cluding automatically operating clutch means for
driving the driven shaft from the driving shaft
during the interval said dog is prevented from
engaging said slot.
‘
,
WILLIAM B. BARNES.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 544 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа