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Патент USA US2137977

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Nov. 22, 1938.
l
H. KATTWINKEL
-2,137,977 -
LAMINATED DISK CLUTCH
Filed May 19, 1957
'M_ 14, 4@ ‘f ma »vf »A
3 Sheets-Sheet l
Nov. 22, 1938.
H. KATTWINKEL
2,137,977
LAMI'NATED DISK CLUTCH
Filed May 19, _1957
l e@ ¿M7
s sheets-sheet 2
Nov. 22, 1938,
H. KA'rTwlNKr-:L
2,137,977
LAMINATED 4DISK CLUTCH
Filed May 19, 1957
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3 Sheets-Sheet
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2,137,971
Patented Nov. 22, 1938
UNITED s-'rATss PATENT _or-'rica
2,137,977
LAMINA'I‘ED DISK CLUTCH
Hans Kattwinkel, Radebeul, Germany
Application May 19, 1937, Serial No. 143,582
In Germany May 22, 1936
>
21 Claims. (Cl. 192-48')
My invention relates to a multiple disk fric
bearl at one end against .the- carrier 2 for the
tion- clutch, primarily intended to be interposed inner disks and at the other end against a pres
` between the driving engine andthe change-speed sure ring 1, which is so supported upon the .tubu
gear of an automobile vehicle, comprising two lar hub 2b of the carrier-2 as to be axially slid
5 clutch disk-carriers, one pertaining to the driv
ing shaft and the other to the driven shaft, one
Àable but not rotatable thereon. By means of
levers l mounted at 8a on the carrier 2, the
_of the said clutch disk-carriers being perma
pressure of the springs i is transmitted to the
nently connected non-rotatably with its associ
ated shaft. According to the invention the other
clutch disks.
The carrier li~ for the outer clutch .
disks is> provided at 5c with teeth, which mesh
clutch disk-carrier is rotatable both in relation
with corresponding internal teeth on a sheet
to the shaft pertaining to it and also in relation
to the shaft pertaining to the ñrst-named clutch
disk-carrier, and is brought into and out of en
steel ring 9, which is provided on both sides with
closed and opened.
wards‘the right against the friction ring 9 by
friction coatings 9a. The friction ring together
with an annular body I2, which is connected fast
gagement with its associated shaft by an aux- ' with a flywheel I I mounted upon the engine shaft,
iliary clutch, preferably constructed as a single
forms an auxiliary clutch, to which there also v
disk friction clutch, when the main clutch is pertains a pressure ring I3, which is pressed to
-
This novel clutch is distinguished by the fol-_
lowing advantages amongst others: It only takes
20 up a small amount of space, particularly in an
axial direction; it permits of smooth starting at
all times; the frictional conditions are constant;
the friction coverings are of great durability;
the consumption of power in operating the clutch
25 pedal is small on account of the possibility, occa
sioned by the close contact of the clutch disks,
of selecting a high ratio of transmission; the
clutch is cheap to manufacture, and simple to
install. Further advantages and features of the
30 invention will be gathered from the following
description.
`
Various preferred forms of construction of 4the
invention are illustrated by way of example in
the accompanying drawings, in which
35
Figure 1 shows in axial sectional elevation the
upper half’of a vehicle clutch constructed ac
cording to the invention, while
Figure 1a is a. detail view of pressure plate 1,
and
40
,
Figures 2 and 3 are axial sections through two
further embodiments of the invention.
In Figure 1, l denotes the gear shaft, upon
4
which a carrier 2 for the inner frictional clutch
disks 3 is keyed fast. A carrier 5 for the outer
clutch disks 4 is rotatably supported by its hub
sleeve 5a upon a hollow cylindrical extension
2a of the carrier 2. 'By a cover 5b connected with
’ the free end ofthe 'carrier 5, the cavity containing
the clutch disks 3, l is shut off, except for a cen
50 tral aperture 5d, so that the interior can be filled
with oil or some other lubricating 'or cooling
medium. The compression of the clutch disks
3, l,V which are in engagement with one another
_ even when the clutch‘is released, is eñected by
55 the aid of a plurality of helical springs I, which
helical -springs I 3a, a radial flange on the ring I2
constituting the abutment. The retraction of
the pressure ring I 3,--which is guided by projec O
tions |3c engaging inrecesses I2b in the annular
body I2, is effected through the medium of levers
I5, which are pivoted at I5a on the flywheel Il,
and bear with their inner ends against a sleeve
I6, which is rotatable relatively to the shaft I
and which bears, by means of a ball-bearing I'l,
against a sleeve 'I8,jso mounted upon the hub
portion 2b of the carrier 2 as to be axially slidable
but not rotatable thereon. At the right hand
end of this sleeve II there are lugs ‘la projecting
in van axial direction from the pressure plate 1.
'I'he lugs 'Ia engage through corresponding ap
ertures in the web portion 2c of the carrier 2.
vThe sliding of the pressure plate 1 against the
action of the springs 6 is eiîected in a known
manner by the aid of a lpressure ring I9, actu
O
ated by the driver of the vehicle by means of the
clutch pedal.
‘
Through gaps in the levers I5 there project
plunger-like members 2li, which engage, with a
ball-shaped head 20a at the- right hand end in
a corresponding cavity of spherical form in the
pressure ring I3. 'I'he opposite ends of the mem
bers 20 project through holes Ha provided in
the ñywheel Il and are provided with a nose
20h 'which can come into engagementwith a pro
5
jection 2|, constructed as a yspring stirrup and
secured to -thel flywheel. The plungers 20 are
also formed with»V notches 20c, in which a pawl
llke projection v15b, provided in the gap in the 50
lever I5, can engage. The >right hand side face
ofthe notch of each of said plungers 20 is in
The method of operation is as follows: In the
working position, that is to say.` when the clutch Gl
L
2
2,137,977
is closed, the clutch disks I, 4 are pressed to
gether by the springs 6 by means of the levers 8.
The levers I5 are in the position illustrated in
Figure l. If, in the gear connected by the clutch
with the engine, a lower speed for instance is to
be put in, the driver, after he has closed the
throttle, steps on the clutchv pedal, as a result of
which ilrst the main clutch is relieved, and im
mediately lthereafter the auxiliary clutch is
10 opened.
The levers I5, which then execute a
movement towards the left with their lower ends,
take the plungers 20 with them by the aid of their
pawls I5b, the resilient projection 2I yielding.
If the pedal is depressed still further, the plung
ers, with their noses 20h, jump over the springs
2I, and the latter return to the initial position.
'I'he levers I5 then'gb back a littleway again,
with itvthe pressure plate' 'I3 of .the auxiliary
clutch, as a result of which the latter is likewise
released. The release of the main clutch is ef
fected in the usual manner through the medium
of a ring I9, surrounding the driven shaft I,
and slidable in an axial direction, coated withgraphite. This ring, when the clutch pedal is
depressed, is displaced in the direction of the
arrow, and then pressed upon the hub portion
23a of the driver 23 for theY auxiliary' clutch. 10
Between the hub portion of the driver and the
levers 4 supported at 8a on an abutment ring
.22 lconnected fast with the carrier'ä is inter
posed a ball thrust bearing 1, so that upon dis
placement of the driver 23 in the direction- of -15
the- arrow the pressure plate I4 is moved to
wards the left by means of the pull rods 24
without taking the'plungers 20 with them. Dur- ' connecting it with the short arms of the levers
I, as a result of which the relieving of the clutch
ing the further backward'movement, by the in
clined surfaces on the right hand side of'the disks 3, 4 is effected, and therefore the release
notches 20c, the plungers 2li are lifted, _as a~ oi' the main clutch. The engagement of the
result of which they become free from.the resil
frictional surfaces of the auxiliary clutch is ef
_ient projections 2I. The pressure springs Ila.` fected by the aid of springs I3a, which are com-1
'can now come into action. 'I'hey throw the pres# pressed between the pressure plate II and out- .
25 sure plate I3 against the friction disc 9, whereby
wardly directed projections on the abutment
the auxiliary clutch is suddenly closed.
f
ring 22.
,
,
The essence of the invention consists there
'I'he method of operation is as follows: When
fore in sub-dividing the clutch device into a - the clutch pedal is depressed the'clutch disks
main or working clutch, and an auxiliary or of the main clutch is relieved, against the action
30 holding clutch. 'I'he latter is preferably con
of the springs 6, by the retraction of the pres
structed as a simple friction disk clutch running sure plate I4. The disks'do not however become
dry, which can work with high specific pressures, free, since the path of the. pressure plate is
since, in closing, it merely has to overcome the very small in comparison _with the large num
'slight resistances of the still released main clutch ber of disks. If the clutch pedal is pressed right
during the slipping of the latter, but afterwards , down the pressure plate I4 then-_strikes against
remains quite stationary, while the main or work ``the projections I3b on the pressure plate of the
ing clutch furnisheslthe slipping work in ac
celerating a starting vehicle. Since the main
clutch is constructed with a large number of
disks, and its specific load is therefore very
low, and since in addition ’it can work in an oil
bath, or, in the case of larger constructions, with
_a circulation of coolingfluid pœsing through
auxiliary clutch and takes the latter with it,
as a result'of which the auxiliary clutch is also
released. Since theI latter, as contrasted with
the main clutch, only has two friction surfaces.
the smallest travel of the pressure plate Il is
Vsuiilcient to free the friction surfaces from one
another completely. 'I'he actuating of the lami
>an external cooler, it is in a position to furnish
the frictional work arising during even a lengthy
period of slipping, and above all to permit of a
nated disk clutch is effected in thisway as sim
ply as that of an ordinary single-disk clutch.
smooth and not jerky starting.
of sheet steel or of light metal, and coated on
`
In the construction shown in Figure 2, I again
denotes the driven shaft, Il the driving shaft,
'I'he friction disk 9 may conveniently be made _
both sides with annular disks 0a of special fric
tional material.
f
50 and 2 the carrier for the inner disks I, which
The connecting of the carrier 5 of the outer
in' this case is mounted fast upon the latter shaft. disks of the main clutch with the toothed wheel '
The carrier I for the outer disks 4 is connected - II for the starter presents the advantage that
fast with a disk II, -with the teeth of which there the latter may under some circumstances be made
meshes a pinion on the starting motor of the f comparatively thin, because it is directly possible
vses vehicle. yTo this disk is alsol secured, through the to bring the toothed wheel II, together with .the
medium of an annular body I2, one of the co
operating friction surfaces I2a of the auxiliary
clutch, the friction disk 9, 9a of which is con
nected by its driver 23' with the driven shaft I
bygrooves and ledges-in such a manner that the
driver can slide axially along the shaft but not
rotate relatively thereto.
associated inertia mass, to a relatively high'speed,
of revolution by the aid 'of a low-power motor, and
thereby to store-up energy: Only when this has
been done is the clutch allowed to engage, for
the energy available for startingvls, not only that
of the rotor of the starting engine, but also that
The friction ring 9 ' of the toothed vwheel II acting as a flywheel.
engages. with radial projections in the spaces
between teeth provided on the driver» 23; À'I‘he
65 driver 2l forms at the same time the casing for
the entire clutch. The pressure plate- Il of the
auxiliary clutch is guided in an axial 4direction
upon the carrier 5, and is provided with a plu
The embodiment illustrated in Figure V3 pre
sents the advantage over those already described,
that the displacement travel of the disengagement
sleeve requisite for the disengagement of the
clutch, and therefore the travel of the clutch
wards, which are located within the range of
pedal, is considerably shortened. This is _attained
owing to the fact that by omitting~the lever trans
mission between the disengaging sleeve and the
movement of the pressure plate I4 of the- main
pressure plate acting upon the clutch disks, the
rality of projections 13b extending radially in
clutch, in such a way that the latter, when it is latte;` is transferred to the other'side of the clutch
moved towards the left, in the -release of the disks andis so formed that it can be lifted by
main clutch,' against the action of the springs ' direct displacement by disengaging the muif Il
6 that press it against the clutch disks l, 4, takes ' from the clutch disks. The auxiliary clutch may 75
8,187,077
still be actuated by the aid oi' levers as before.
>'I'hese may bear with their inner ends directlyA
on the pressure'plate of the main clutch.
In Figure 3, the engineshaft is again denoted
` by Il, and the driven shaft by l. To the fly
wheel Il, ilanged to the shaft Il is secured at Ila
a pot-shapedcasing Il, with the'right hand flange
pressing the pedal. It then comes into direct
contact with the hub body Ila of the pressure
plate I4, and lifts the latter off the clutch disks
of the main clutch against the action of the spring
C, so that the main clutch becomes free.' At the
same time, through the medium of _the levers Il.
the pressure ring Il of the auxiliary clutch is
memberlia of which a sleeve 2, concentric with Y moved to the right, as a result of which the lat
the shaft, is connected by _screws 2a. The sleeve ter becomes free. Upon release of the clutch
pedal the parts go back under the action „of the
2 serves as a carrier for the group of disks 3 per
taining to the shaft Il. ' The disks 4, of the group clutch springs into the position illustrated in the
belonging to the shaft I. are aligned upon bolts 5b, drawings, in which both clutches are closed.
I claim:
'
which are screwed -into a ring body i, which forms
1. In a clutch mechanism especially for autu-the carrier for the group of disks l, The bolts Ib‘
L 15 at the same time hold an annular disk le, which '_ mobile vehicles having toothed-wheel change
serves as an abutment for the compression oi the , speed gearing, the combination of a rotatable
.clutch disks 3, I. This compression is effected by driving member and a rotatable driven member
the aid of a prœsure plate I 4, which is displace Awith a main clutch .of the multiple disk type.`
able in 'an axial direction, with a hub body Ila, comprising two sets of co-operating clutch disks.
constructed as a hollow sleeve, upon a hub sleeve a carrier for one of said sets of clutch disks iixed
Ila. To'the sleeve Sla, which is supported by the to one of said rotatable members, a carrier for
aid of ball bearings 2l, 2l upon the driven shaft I, the other set oi' clutch disksarranßed t0 coact
is attached a disk 2l, which is integral with the with theother rotatable member and loosely ro
ring body 6. The ring body l forms', towards the tatable with respect to both the rotatable mem
flywheel II`, a bell-shaped extension 22, which, on bers. both of said carriers being` substantially
the side lacing the flywheel, presents an inwardly A* non-shiftable in-an axial direction, an auxiliary
friction clutch between said loosely rotatable car
projecting ring I2. 'I‘he latter serves as an abut
The pressure plate Il of the auxiliary clutch forms
rier and the rotatable member with which >it is
arranged to coact and clutch actuating means
23,.and which is pressed against the friction disk
I by helical springs Ila located between it and the
to openV the. main clutch before the auxiliary
clutch'and to close the main clutch after the
tlange member of the bell body 22. The releasing \
auxiliary clutch.
ment (or the friction disk 9 of the auxiliary clutch.
’a ring, which is guided on ledges 23a on the body ` for said main and auxiliary clutches arranged n
,
Y
2. Ina .clutch mechanism especially for auto
ff- levers I8, which are distributed round the pe-- mobile vehicles having toothed-wheel change~
riphery,_and which are supported at IIa on the speed gearing, the combination of a'rotatable
oi the auxiliaryclutch isv effected by the aid of
annular body I. 'I'hese levers bear with their
lower ends on the pressure plate I4 of the main
clutch, and with their shorter upper ends -onl'
positioning screws 2l of the pressure ring Il of
the auxiliary clutch.
_
.The friction disk l of the auxiliary clutch con
sists of a disk of thin spring sheet metal, which,"
on the inside; in the neighbourhood of the axis,
is riveted to the iiange’2l of a sleeve 2l keyed
on to the shaft I, while on the outer margin it
carries the> two coatings 9a of special frictionaP
material, for instance a mass o'i’l asbestos fibre
bound together with an artificial resin,'co-operat'sing with the abutment I2 and the friction ring I3. Thesheet metal disk I is given a certain
initial stress when inserted, in such a way that
the external surfaces of the coverings la, when
>driving member and a rotatable driven- member
with a main clutch of the -multiple disk type.
comprising-two sets of co-operating clutch disks, a
_carrier for one of said sets of clutch disks iixed to
one of said rotatable members, a carrier for the
other set of clutch disks arranged to lcoact with' `
the other rotatable member and loosely rotat
able with respect to both the rotatable> members.
an auxiliary friction clutch between said loosely 45
rotatable can‘ier and the rotatable member with
which it is arranged to coact and spring means `
for automatically closing said main clutch, sep
-arate spring means for automatically closing said
auxiliary clutch and common clutch operating
means for relieving the“ main and auxiliary
clutches from the action of -the said spring
’ the auxiliary clutch is released, are located very
-3`. In a-clutch mechanism especially for au -
iary clutch ina disengaged condition is obviated.
_The pressing together of the clutch disks ofthe
with a main clutch of the multiple disk type.
close to the abutment I2 and also to the pressure 4mobile vehicles having toothed-wheel change
speed gearing, the combination of a rotatable
ring I3, In this way any dragging of the auxil
driving member and a rotatable .driven member
main clutch is effected by the aid of a strong
comprising -two sets of co-operating clutch disks. a '
.helical spring 0,' which is lodged, concentrically
carrier for one oisaid sets of clutch disks _ilxed to
one of said rotatable members, a carrier for the
with the axis of the shaft, in the annular` cavity
in the hub sleeve. Ila, and bears at one end ‘ other set of clutch disks arranged to coact -with
against the bottom of this cavity, land at the> the other rotatable-member and- loosely- rotat
other end against the disk”. The opening of the able with respect to both the rotatable members,
main- clutch is eilected when the clutch pedal an auxiliary friction clutch between said loosely
acting ~upon the disengaging muil Il is depressed, rotatable carrier and the rotatable. member with
by the direct action or .the disengaging muil upon which it is arranged to coact and spring means'
for automatically closing said main clutch, sep
-the opposite end of the hub sleeve Ila, and there
fore, ’through the medium of this hub sleeve, upon arate spring means for automatically closing said .
the pressure plate Il. -By the latter the levers Il auxiliary clutchl and common clutchkollerating 70
of thc'auxiliary clutch are moved at the same means for relieving the main and auxiliary
clutches from the action of the said spring
-time, whereby also ‘this clutch is released.
'I‘he `method of operation is asiollowsz` `mean_s,'_sa.ld common clutch‘opsrating means be'
When the clutch is to be released-the muil II ing arranged to relieve the main> clutch before
,_isdisplaeedinthedirectionoithearrowbyde
relieving the auxiliary clutch. -
~
-
4
9,187,977
4. In a clutch mechanism especially for auto
mobile vehicles having toothed-wheel change
pressure ring and the said abutment, spring
-means for closing the main clutch, an axially
speed gearing, the combination of a rotatable> shiftable member arranged so as to be capable
driving member and a rotatable driven member of relieving the main'clutch from the action of
with a main clutch of the multiple disk type, said .spring means and means arranged to co
comprising two sets of co-operating clutch disks. operate with said axially shiftable member for
a carrier for one of said sets of clutch disks fixed relieving the pressure ring from the action of
to one of said rotatable members, a carrier for the pressure springs.
the other set of clutch disks arranged to coact
8. In a clutch mechanism especially for auto
with the other rotatable member and l
ro
mobile vehicles having toothed-wheel change
tatable with respect to both the rotatable mem
speed‘gearing, the' combination of a rotatable
bers, an auxiliary friction clutch between said driving member and a rotatable driven member
loosely rotatable carrier and the rotatable mem
with a main clutch of the multiple disk type,
ber with which it is arranged to coact and spring
15 means for automatically closing said main clutch, comprising two sets of co-operating clutch disks,
a carrier for one of said sets of clutch disks ilxed
separate spring means for automatically closing to one of said rotatable members, a carrier for
vsaid auxiliary clutch, clutch operating means for the other set .of clutch disks arranged to coact
relieving the main clutch from the action oi' the with the other rotatable‘member and loosely ro
spring'means for closing it and clutch operating A tatable with respect to both the rotatable mem
20 means for relieving the auxiliary clutch from the
bers, both of said carriers being substantially 20
action of the spring means for closing it, ar
non-shiftable in an axial direction, an auxiliary
ranged for actuation by the operating means for >friction clutch between said loosely rotatable
relieving the main clutch and in lost motion re
carrier and the rotatable member with which it
lationship with respect thereto.
_
is arranged to coact, said auxiliary clutch com
5. In a clutch mechanism especially for auto
prising a friction disk, two abutments rigid with 25
mobile vehicles having tootlied-wheel change
the second-mentioned carrier, a pressure ring lo
speed gearing, the combination of a rotatable cated between said friction disk and one of said
driving member anda rotatable driven member abutments, pressure springs for closing the aux
with a main >clutch of the multiple> disk type, iliary clutch located between the pressure ring
comprising two sets of co-operating clutch disks, and the said abutment, spring means for closing 30
a carrier for one of said sets of clutch disks fixed -the main' clutch, an axially shiftable member
to one of said rotatable members, a carrier for arranged so as to be capable of relieving the main
the other set-‘of clutch disks arranged to coact clutch from the action of said spring means and
with the other rotatable member and loosely- double-armed levers plvotally mounted on the
rotatable with respect- to both the- rotatable second-mentioned carrier, arranged to engage 35
members, an auxiliary friction .clutch of the sin
said pressure ring and to co-operate with thev
gle disk type comprising a pressure ring and lo
axially shiftable member for relieving the pres
cated between said second mentioned carrier and sure ring from the action of the pressure springs.
the rotatable member with which it coacts, spring
9. In a clutch mechanism especially for auto
means for closing the main clutch, spring means mobile vehicles -having toothed-wheel change 40
for'closing the auxiliary clutch, clutch operating speed gearing, the _combination of a rotatable
means for relieving the main clutch- from the driving member and a rotatable driven shaft with
action of the spring means for closing it and.V a main clutch of the multiple disk type, compris
clutch operating means for relieving the auxiliary \ing two sets of co~operating clutch disks, a carrier
45 clutch from the action of the spring means for for one of said sets of clutch disks rigidly con 45
closing it and comprising a plurality of double- nected to said driving member, a carrier for the
armed levers plvotally mounted on the second other set of clutch disks loosely rotatable with
mentioned carrier andl arranged to engage said respect to said driving member and driven shaft,
pressure ring.
'
.
.
an auxiliary friction clutch located between -said
6. In a clutch mechanism, the combination as second-mentioned carrier andthe driven shaft,
set forth in claim 5 with adJustable screw means an annular pressure member between said driving
between the levers and the pressure ring for
and said sets of .clutch disks, spring
adjustably transmitting the motion of the levers 4member
means for closing' said main clutch interposed be
to the pressure ring.
>
'« ‘
7. In a clutch mechanism especially for auto
.mobile vehicles having toothed-wheel change
speed gearing, the combination of a rotatable
driving member and a rotatable driven member
with a main clutch of the»> multiple disk type. com
prising two sets of co-operating clutch disks,
a carrier for one of said sets oi.' clutch disks ?xed
to one of said rotatable members, a carrier for
the other set of clutch disks arranged to coact
with the other rotatable member and loosely
65 rotatable with respect to both the rotatable
members, both ofV said carriers being substan
tially non-shiftable in an axial direction, an
auxiliary friction clutch between said loosely ro
tatable carrier` and the rotatable member with
70 which it is arranged to coact.' said auxiliary
clutch comprising a friction disk, two abutments
rigid 'with the second-mentioned carrier; a pres~
sure ring located between said friction disk and
one of said abutments, pressure sprin'gs for clos
75 ing the' auxiliary clutch located between the
tween said4 pressure member and the second
mentioned carrier so as to apply, the pressure 55
member to the sets of clutch disks, means for dis
placing the pressure member so as-to compress
said closing springs and relieve the clutch disks
from the action of the pressure member and
means arranged to co-operate with said pressure
member for operating the auxiliary friction
clutbh.
y
`
.
10. In a clutch mechanism especially for auto
mobile vehicles having toothed-wheel change
speed gearing,- the combination- of a rotatable
driving member and a rotatable driven shaft with
a main clutch of the multiple disk type, compris
ing two sets of 'co-operating clutch disks, a carrier
for one of said sets of clutch disks rigidly con
nected to said driving member, a carrier for the 70
other set of clutch disks loosely rotatable with re- _
spect to said driving member and driven shaft, an
auxiliary4 friction clutch located between said sec- 1
ond mentioned carrier and the driven shaftfan
annular pressure member between said driving 75
2,187,977
member and said sets of clutch disks, spring
5
driving member and a rotatable driven member
with a main clutch of the multiple disk type,
comprising two sets of co-operating clutch disks,
tween said pressure member and the second-men
tioned carrier so as to apply the pressure member an inner carrier for one of said sets of clutch
to the sets of clutch disks, said auxiliary friction ldisks, rigid means for connecting said inner
'_ clutch comprising a friction disk, an abutment for ,j carrier to onel of said rotatable members, an
- means for closing said main clutch interposed be
„ said friction disk on the second-mentionedcar
rier, a pressure ring, closing springs arranged to
bear against said pressure ring so as to apply the
10 pressure -ring against said friction disk, and
radial double-armed levers<pivotally mounted on
the second-mentioned carrier with their outer
arms in engagement with the pressure ring and
their inner arms in engagement with the annular
15 pressure member.
'
11. In a clutch mechanism, the combination as
set forth in claim 10 with a hollow‘» hub member
~rigidly connected to the annular pressure mem
ber and containing the spring means for closing
the main clutch and an axially shiitable'operat
ing member for displacing said hub member axl
‘vìouter carrier for the other set of clutch disks
arranged- to coact with the other rotatable mem
berand loosely yrotatable with respect to. both 10
the rotatable members, an auxiliary friction
clutch between said loosely rotatable carrier and
the rotatable member with which it is arranged
to coact, said rigid connecting means enclosing
said outer carrier and said auxiliary clutch, and >
clutch actuating means for said main and aux
iliary clutches arrangedy to open the main clutch
before the auxiliary clutch and to close the
main clutch after the auxiliary clutch.
l5. In a clutch mechanism especially for auto
mobile ~vehicles having toothed-wheel change 20
speed' gearing, the-combination of a rotatable
driving member and a rotatable driven member
12.' In a clutch mechanism especially for auto- _` with a main clutch of the multiple disk type,
comprising two sets of co-operating clutch disks,
mobile vehicles having toothed-wheel change
ally relatively to said driven shaft.
speed gearing, the combination of a rotatable
an inner carrier for one of said sets of clutch 25
driving member and a rotatable driven member
disks, rigid means for connecting said inner car- '
rier to one of said'rotatable members, an outer
with a main Íclutch of the multiple disk type, com-f
prising two sets loi? co-operatlng clutch disks, a
carrier for the ’other set of clutch disks arranged
carrier for one of said sets‘of clutch disks fixed
to coact with the other rotatable member and
to one of said rotatable members, a carrier for the
other set of clutch disks arranged to coact with
the other rotatable member and loosely rotatable
able members. an ,auxiliary frictionclutch be
loosely rotatable with respect to both the rotat
tween said loosely rotatable carrier and the
rotatable member with which it is arranged to
coact, spring means for closing the main clutch.A
in an axial direction, an auxiliary friction clutch and clutch operating means for relieving the main
of the single disk type between said loosely rotat- ’ clutch from the action of said spring means, said
able carrier and the rotatable member with which clutch operating means comprising a plurality
it is arranged to coact, spring means for closing of levers pivotally mounted on said outer car'
rier on that side of the sets of clutch disks which
the main clutch, an annular pressure member in
terposed between said spring means and the faces away from `said clutch operating means.
16._ In a clutch mechanism especially for auto
main clutch, an axially shiitable operating mem
ber for relievingV the main clutch from the action mobile vehicles having-toothed-wheel changed- of the clutch closing springs, said operating speed gearing, the combination of a rotatable
member being mounted non-rotatably relatively driving member’and a rotatable driven member
to the loosely rotatable carrier, an axially shift `with* a main clutch of theY múltiple disk type,
able non-rotatable operating member arranged comprising two sets of co-operating clutch disks,
so as to be capable of being brought into engage-k- an inner carrier for one ’of said sets of clutch
ment with the operating member for relieving disks, rigid means for connectingsaid inner car
the main clutch from the action of the closing rier to one of said rotatable members, an outer
carrier for the other set of clutch disks arranged
50 springs therefor and operating means for open
to coact with the other rotatable member and
ing and closing the auxiliary clutch.
13. In a clutch mechanism especially for auto- ' loosely rotatable with respect to both the rotat
able members, an auxiliary friction clutch be
mobile vehicles having toothed-wheel change
speed gearing, the combination ofa rotatable tween said 'loosely rotatable carrier and the ro
55 driving member and a rotatable driven member tatable member with which it is arr inged to
with respect to both the rotatable members,both
of said carriers being substantially non-shiftable
with a main clutch of the multiple `disk.type,
comprising two sets of cooperating clutch disks,
coact, said rigid connecting means enclcsing said
outer carrier and said auxiliary clutch. spring
an inner carrier for vone of said sets of clutch means for closing the main clutch, and clutch
disks, rigid- means for connecting said inner >operating means for relieving the main clutch
carrier to one of said rotatable members, an from the action of said spring means, said clutch
g, outer carrier for the other set of clutch disks ì operating means comprising a plurality >of radi
ally extending double-armed levers pivotally
arranged to coact with the other rotatable mem
_ber and/»loosely rotatable with respect to both mounted on said outer carrier _on that side of
the rotatable members, an auxiliary friction the sets of 4clutch disks which faces away from
A
clutch between said loosely rotatable carrier and said clutch operating means.' `
17. In a clutch mechanism as claimed in claim
the rotatable member with which it is arranged
,to- coact, said rigid connecting means enclosing 16, said auxiliary clutch comprising a pressurel
said outer carrier, and clutch actuatingmeans ring, the outer arms of said'radially extending
for said main and auxiliary clutches arranged ~ levers beingA adapted to engage' said pressure
to open the main clutch before the’ auxiliary ring‘ while the inner varms being adapted to be
clutch and to close the main clutch after the engaged by said clutch actuating means. .
auxiliary clutch.
14. In-.a clutch mechanism especially forV auto-`
75 ..
mobile vehicles having toothedèwheel .change
speed gearing, l.the combination of a rotatable
. 18. In a clutch mechanism especially for auto
mobile- vehicles >having toothed-wheel change
speed gearing, the combination. of _a rotatable
driving member and a rotatable driven member
6
2,187,977
with a main clutch of the multiple disk type,
comprising two sets of co-operating clutch disks,
sure ring, characterized by the feature that the
loosely rotatable clutch disk carrier together with
a carrier for one of said sets of clutch 'disks fixed
to one of said rotatable members,`a carrier for
nular. body substantially U-shaped in cross-sec
the other set of clutch disks arranged to coact
said abutment which is rigid with it forms an an
with the other rotatable member and loosely ro
tion.
21. In a clutch mechanism especially for >au
tatable with respect to both the rotatable mem
bers, an auxiliary friction clutch between said
tomobile vehicles having toothed-wheel change
` loosely rotatable carrier and the rotatable mem
10 ber -with which it is arrangedv to coact, means
for actuating said auxiliary clutch. and means
for actuating said main clutch independently _of
said auxiliary clutch actuating means, so as to
_ open the main clutch each time before the auxil
15 lary clutch is opened, but to close the main clutch
after the auxiliary clutch is closed.~
19. A clutch mechanism as claimed in claim 16,
the auxiliary clutch of which comprises a pres~
sure ring and a friction disk, characterized by
the feature that the levers _of the auxiliary clutch
engage by their outer ends on the .inside of said
pressure ning of the auxiliary'clutch, which is
pressed against said friction disk by means of
springs provided between it and said outer car
rier, while the inner ends of the levers lie oppo
site a hub member _which is in engagement with
said clutch operating means.
'
20. A clutch mechanism as claimed in claim l,
the auxiliary clutch of which-comprises a pres
sure ring, an abutment and a plurality of springs
interposed between said abutment and said pres
speed gearing, the combination of a rotatable
driving member and a rotatable driven member
with _a main clutch of the multiple disk type,
comprising two sets of co-operating clutch disks,
a carrier for one of said sets of clutch‘disks fixed
to one of said rotatable members, a carrier for
_the other set of clutch disks arranged to coact
with the other rotatable member and loosely ro 15
tatable with respect to both the rotatable mem
bers, an auxiliary friction clutch between said
loosely rotatable carrier and the rotatable mem
bei- with which it is arranged to coact, clutch ac
tuating means for said f main and auxiliary
clutches arranged to open the main clutch before
the auxiliary clutch and to close the main clutch
after the auxiliary clutch, said clutch actuating
means comprising a non-rotatable ring member,
a sleeve member having an annular end surface
and being adapted to rotate together with said
loosely rotatable clutch disk carrier, and means
to cause said ring member to come into frictional
engagement with the annular face of said sleeve
member.
`
_
HANS KA'I'I'WINKEL.
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