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Патент USA US2407728

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Sept. 17, 1946.
Cu B. SPASE
2,407,727 _
CLUTCH
Filed Jan. 8, 1944 l
`
2,407,727
Patented Sept. 17, 1946
UNITED STATES PATENT orrlcE
2,407,727 I
CLUTCH
Charles B. Spase, Nedrow, N. Y., assigner to Lipe
Rollway Corporation, Syracuse, N. Y., a. corpo
ration of New York
Application January 8, 1944, Serial No. 517,556
7 Claims. (C‘l. 1532-99)
1
2
”
‘
’
,
I0 `designates the throw-out collar operatedi
any well-known mannerirom the clutch pedal
to throw out or disengage- the clutch against the
This invention relates to friction clutches of
the type used in motor vehicles, and has for its
object a simple and economical construction by
which the clutch levers, the pressure ring and
the back plate are assembled and held assembled
without the use of pins, rivets, screws, pivots, etc.,
action of springs 9, The motion of the »throw
out collar is transferred to the pressure ring
through radially-extending, multiplying levers I I.
The levers and the pressure ring have means
for interlocking for coupling them together in as
pressure ring, and the levers and the back plate.
sembled relation by endwise movement of the le.
The invention consists in the novel features
and in the combinations and constructions here 10 vers. The back plate and-the levers have means
for interlocking to hold the levers from displace
inafter set forth and claimed.
ment from their assembled relation with the pres
In describing this invention, reference is had
sure ring or to hold them from shifting endwise
to the accompanying drawing in which like
inwardly when assembled with the pressure ring.
characters designate corresponding parts in all
The levers are brought into interlocking engage
theviews.
but by interlocking engagement of the levers and
ment with the means or arms on the pressure
Figure 1 is a diametrical sectional View of a
ring by, radial shifting movement of the levers,
lclutch embodying this invention.
preferably an outward movement. The levers
are held in interlocking engagement with said
in Figure l, partly broken away and partly in
arms by a rocking movement .which interlocks
20
section.
the levers with the back plate. The rocking move
The invention comprises means for coupling
ment to interlock the levers and the back` plate
the clutch levers to the pressure ring by inter
is in the same direction as the normal operating
locking them together, the interlocking being ef
movement of the levers to engage and‘disengage
fected by a relative endwise or radial movement
the clutch, but is greater than the normal operat
of the radial clutch levers andthe pressure ring,
Figure 2 is a rear elevation, looking to the left
and means for supporting the clutch levers from
ing movement.
ing means between the back plate and the levers
arranged to interlock when the levers are coupled
to the pressure ring.
`
The invention further preferably includes
anti-rattling springs, each having arms extend
ing through or hooking into openings in the back
plate, and the levers, so as to be assembled with
out screws, pins, and the like, the springs also
having portions located between the back plate
cured in any suitable manner, as by screws 5, to
`
`
,
notches. The passage i3 is wide enough to per
mit this endwise movement to crotch the levers
in the notches.
I and 2 designate, respectively, the driving
the driving member I. The driving member I is
usually the fly wheel of the engine of the vehicle.
'
These arms are provided with notchesfIlI for re
ceiving a transverse edge or shoulder I5 on the
levers, so that the levers are crotched in the
and the levers to act as fulcrums for the levers.
and driven members of the clutch, 3 designates the pressure ring, which is rotatable with
the driving member, and 4, the back plate se
`
The pressure ring is provided with rearwardly
extending arms I2 extending through openings in
the back plate and coacting or interlocking with
the levers II respectively. One set of these co
acting parts, here shown as the levers I I, is
formed with passages I3 through which the other
of the coacting parts, that is, the arms I2, extend.
the back plate and holding them in interlocking
engagement with the pressure ring by interlock
.
The interlocking means between the back plate '
4 and the levers II to hold the levers in their
assembled position are operable by a rocking
movement of the levers on their fulcrums greater
than the normal Voperating movement of the
levers. As here illustrated, the back plate is
formed with openings or slots I 6, one for each
The driven member Ais here shown as a plate or
lever. The levers are provided with angular
disk having a hub E slidably splined on the
arms I'I at their outer ends extending in a general
clutch shaft 'I and also having friction facings
direction parallel to the axis of the‘clutc'h and
8 on opposite sides of its outer margin, which
are compressed between the pressure ring 3 and 50 being slightly arcuate'about the fulcrum `axis of
ythe levers II, the arms being arranged to come
the driving member I to engage the clutch. It is
into register with the slots I6 when the levers
so pressed by suitable spring means, asr a plu
are interlocked with the notches I4 of the arms
rality of springs 9 interposed between the back
I2. Thus, the levers, when interlocked with the
plate and the pressure ring. The back plate is
arms I2, are held from radial movement inwardly.
preferably formed up of sheet’inetal.
3
2,407,727
Each of the levers is acted upon by an anti
rattling spring I8 interposed between the back
plate and the lever and having an interlocking
engagement or hooking engagement with the back
plate and the levers. -The spring here shown is
of a single strand or wire shaped to have arms
20 and „2l 4interlocked with the fback plate and
the adjacent lever respectively, and an interme
diate portion 22 arranged to act as a fulcrum
for the lever. The arm 29 is formed with an
4
3. In a friction clutch including driving and
driven members, a pressure ring rotatable with
the driving member and thrusting toward the
same to clutch the driving and driven members
together, a back plate, spring means acting on
the pressure ring to engage the clutch, a throw
out collar,r and radially `ext__ending_levers between
the `>¿throw-.out collar and the ¿pressure ring oper
able' to disengage the clutch; the combination of
formed with an end 24 which extends through
rearwardly extending arms on the pressure ring
extending through the back plate, one arm for
:each lever, the arms and the levers having means
for interlocking upon a radial shifting movement
or hooks into a passage in the lever 'lil or Athe
arm I1 thereof, these arms being tensioned 'to
of the levers, the levers and the back plate hav
`ingnneans .for ‘interlocking to support the levers
press in opposite directions, and thus hold the
levers from looseness.
In assembling, the pressure ring „may lbe
Ainterlocking .engagement with said arms, and an
anti-rattling spring having arms hooking into
angular end 23 which extends into or hooks into '
an opening in the back plate. The arm 2l is
and hold ’them from endwise movement, when in
mounted in the back plate by passing the arms
openings in the back ,plate and the levers re
l 2 through the passages‘therefor in the back plate 20 spectively for securing the spring assembled with
and the levers with the springs interlocked there
the back plate and the levers, .andintermediate
with applied hy moving the springs outward ra
portions of 'the springs extending èbe'tween the
dially, so that the springs may interlock with
`back plate and `the levers and `serving as ‘ful
'the vback plate at ‘23 and the arms l1 maybe
crums for-the levers.
alined with and move into the ,passages I 6 off 25
ll. In a friction clutch including driving and
the 'back plate. Hence, the pressure ring, back
driven members, a pressure ring rotatable lwith
plate and clutch levers are easily assembled with
the driving member 4and Vthrusting -toward ’the
out Vthe use of pins, pivots, screws, rivets, etc.
same 'to clutch `the driving and driven members
They maybe disassembled by a reverse `of these
together, a back plate, spring means'acting on
30 the pressure ringito Vengage the clutch, Va throw
v movements.
'What I claim is:
.
out collar, and radially extending ì‘levers‘between
.'1. In _a friction clutch including driving and
the throw-out collar »and the pressure ring oper
Adriven members, a pressure ring rotatable with
able to disengage the clutch; the combination
the driving member .and thrusting toward `the
of rearwardly extending arms 0n the vpressure
.same Vto clutch the driving and driven members
ring extending through the back plate, one arm
together, a back plate, springmeansacting on the
for each lever, the arms and the levers “having
pressure ring to engage the clutch, a 'throw-out
means for interlocking, on@ set of said interlock
collar, and radially extending levers between ’the
ing parts ’being 'formed with passages through
throw-out collar and the pressure ring operable
which the others of said parts extend, andthe
to disengage the clutch; the combination of said 40 arms being formed with notches and the levers
pressure ring having rearwardly extending arms
with portions for interlocking inthe notches »upon
and the <levers interlocking with the arms against
endwise> shiftingV movement of the levers, the
displacement 'in a direction parallel to the axis
back plate and the levers having means for com
of the clutch and placeable into such _interlocking
ing into interlocking engagement when the levers
engagement by a radial endwise movement o‘f the 45 are interlocked with said arms, and anti-'rat
levers, the levers also having means 'slidably in
tling 4springs >having arms hooking into the back
terlocking with the back plate for holding the
plate and the levers respectively, the springs hav
levers in 'interlocking engagement with said .arms
ing >intermediate portions interposed between the
against radial displacement during the normal
Alevers and the back plate and serving `as ful-V
operation of the levers.
50 crums for the levers.
2. 'In a friction clutch including driving and
5. In a friction clutch including driving and
driven members, la pressure ring rotatable with
driven members, a pressure ring rotatable with
the driving member and thrusting toward the
the driving >member and thrusting toward the
same to clutch the driving and driven members
same to clutch the driving and driven members
together, a back plate, spring means acting on 55 together, a back plate, spring means acting on
the pressure ring to engage the clutch, a throwi
the pressure ring to engageY the clutch, a `throw
out collar, andradially extending levers between
out collar, and radially extending levers between
the throw-out collar and the pressure ring op
the throw-out co-llar and the pressure ring oper
-erable to disengage the clutch; the combination
able to disengage the clutch; the combination
.of yrearwardly extending arms on the pressure 60 of rearwardly extending arms on the pressure
.ring extedning .through the back plate, one >arm
ring extending through the back plate, `the larms
.for each lever, the >arms and the levers having
being formed with notches in their sides toward
.means for interlocking, ,oneset of said interlock
the axis of the clutch, the back plate >being Y
.ing parts being 4formed with passages through
formed with -slots therethrough located radially
which ,the .others of .said îparts extend, and the 65 outward'relatively to the .rearwardly extending
`arms being .formed with notches and 4the levers
with portions for interlocking .in the notches ,upon
.endwise shifting movement of the levers, the back
-plate having openings therein, and the levershav
.ing arms extending in a general direction paral- »
lelto the axis of the clutch Vand angular to the
arms of the pressure ring, the'levers having .an
gular arms slidable through the slots and the
levers also having portions extending ¿into 'the
notches of the rearwardly extending arms, _the
slots being located to receive the angular arms
of the levers, when ,said portions of the levers
major part of the levers for .entering said open
are located in the notches.
,
ings and <interlocking the back plate and the le
6. In a friction clutch including driving .and
vers together, when .the Vlevers `are linterlocked in
driven members, @pressure ring rotatable .with
ysaid notches.
75 the driving member and thrusting toward the
2,407,727
same to clutch the driving and driven members
together, a back plate, spring means acting on
the pressure ring to engage the clutch, a throw
outJ collar, and radially extending levers between
the throw-out collar and the pressure ring op
erable to disengage the clutch; the combination
6
same to clutch the driving and driven members
together, a back plate, spring means acting on
the pressure ring to engage the clutch, a throw
out collar, and radially extending levers between
the throw-out collar and the pressure ring op
erable to disengage the clutch; the combination
of rearwardly extending arms on the pressure
of rearwardly extending arms on the pressure
ring extending through the back plate, the arms
being formed with notches in their sides toward
the axis of the clutch, the back plate being formed
with slots therethrough located radially out
ward relatively to the rearwardly extending arms
of the pressure ring, the levers having angular
ring extending through the back plate, the arms
being formed with notches in their sides toward
the axis of the clutch, the back plate being
formed with slots therethrough located radially
outward relatively to the rearwardly extending
arms slidable through the slots and the levers
also having portions extending into the notches
of the rearwardly extending arms, the slots be
ing located to receive the angular arms of the
levers, when said portions of the levers are 1o
cated in the notches, and anti-rattling springs
for the levers, each spring being anchored at its
opposite ends to the back plate and to the com
panion lever.
'7. In a friction clutch including driving and
driven members, a pressure ring rotatable with
the driving member and thrusting toward the
arms of the pressure ring, the levers having an
gular arms slidable through the slots and the
levers also having portions extending into the
notches of the rearwardly extending arms, the
slots being located to receive the angular arms of
the levers, when said portions of the levers are
located in the notches, and anti-rattling springs
for the levers, each spring being anchored at its
opposite ends to the back plate and to the com
panion lever, a portion of each spring serving as
a fulcrum on the back plate for the companion
lever.
CHARLES B. SPASE.
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