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Патент USA US2409738

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y oct, 22, 194e.
2,409,737
T. B. CLARKE ETAL
CHIP EJECTOR FOR HEEL SEAT FITTING MACHINES
Filed uarch a; 1945
’
-
4 sheets-sheet 1
,
, `Inventónf;
ï/Iomas ßaggott ¿Varie
Frede r/cA' h/I//lam Henry Mil/fam.;
i 7c
‘
orney
‘x'W
Oct 22, -1946.
T. B. CLARKE ETAL_
2,409,737' _
CHIP EJEGTOR FORl HEEL SEAT FITTING MACHINES
Filed March 8, 1945
4 Sheets-Sheet 2
74
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Figi?
55
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_
Ínvenmw
mamas Baggot? C/œwßfe.
Healer/ck Wf//fam Henry Wf//lams
‘
0d'. 22, 1946,
'
\
'
l T. B, CLARKE ETAL
~
2,409,737 Y
CHIFEJECTOR FOR HEEL sk_:Afr FITTING MACHINES>
Filed Haren-8, 1945v
4 sheets-sheet s
Inventors
5
Mamas-Baggo?t Clark:
`octe 22, 1946.
T. B, CLARKE ETAL
y
2,409,737
CHIP EJECTOR FOR HEEL SEAT FITTING vMACHINES
Filed March 8, 1945
4 sheets-sheet 4
Patented Oct. 22, 1946
2,409,737
UNITED STATES PATENT OFFICE ,
Y \
Y
CHIP‘EJECTOR FOR` HEEL SEAT FITTING ß
’
MACHINES
"
Thomas Baggott Clarke and Frederick William
Henry Williams, Leicester, England, assignors
to United Shoe Machinery Corporation, yFlem
ington, N. J., a corporation of New Jersey
Application March 8, 1945, Serial No. 581,585 ’ ‘
In Great Britain June 6, 19,44
l
7 Claims.
(ol. 12-315)
1
This invention relates to machines for use in
»
-
2
The illustrative ejector, which is eiîective in
its operation and is of simple construction, will
be hereinafter described in connection with the
the manufacture of shoes and particularlyto im
proved chip ejector mechanism adapted for use,
for example, in heel seat ñtting machines.`
accompanying drawings, in which
In order to remove chips of surplus outsole
Fig. 1 is a side view, partly in section, of the
material from crease plates of heel seat fitting
l heel seat fitting machine disclosed in said Letters
machines of the general type disclosed in United
Patent No. 2,215,524, provided with my novel
States Letters Patent No. 2,215,524, granted .Sep
l ejector mechanism;
tember 24, 1940, on an application filed in the
Figs. 2, 3 and 4 are side, rear and plan views,
name of George Hazelton, for example, ejectors 10 respectively, of the ejector in its cocked position
of various constructions have been proposed. The
ready to be tripped preparatory to ejecting a chip
chips are commonly forced over the front edges
of the crease plate by the ejector and preferably
from the machine;
l
p
Fig. 5 is a view corresponding to Fig. 2 showing
fall into a container.
the ejector prior to being cocked; and
The rear ends of chips left on the crease plate 15
Fig. 6 is an exploded Yview showing, in perspec
after the completion of the heel seat iitting oper
ation are located in diiïerent positions lengthwise
of said plate. The chip should be moved forward
by the ejector with the proper amount of force
tive,.the various parts of the ejector in its cocked
position.
`
Y
»
As illustrated, the ejectorcomprises a U-shaped
bar 20 having at its closed end a T-shaped head
to cause it to clear the forward edges of the 20 22 which is moved forward over a multipart crease
crease plate and to fall into the container. Such
plate 24 (Figs. 1, 2, 4 and 5) of the heel seat iit
force, however, should notbe so great that the
ting machine disclosed in the above-mentioned
chipfis thrown past the container and onto the
Letters Patent No. 2,215,524, for example, in order
floor. Many ejectors commonly in use rely upon
to slide a U-shaped chip 26 (Fig. 4), trimmed
springs for their actuation, and With such ejectors 25 from the heel seatportion` 25 (Fig. l) of an at
ithas been proposed to provide dashpots operat
tached outsole of arshoeï 21 and lying upon the
ing in opposition to the springs in order to insure
crease plate,` over the forward edges 28 (Figs. l
that the chip shall be so operated upon that‘it is
and 4) of the crease plateV and into a container
removed from the crease plate and falls into the
(not shown) arranged at thefront of the ma
container. It has been found, however, that the 30 chine. Since the present invention is directed
dashpot adds considerably to the expense vand
primarily to the ejector, only those parts of the
service of the ejector. Moreover, the action of the
heel seat fitting machine which actively co-oper
dashpot when not properly adjusted tends to slow
ate with said ejector will be disclosed. It will be
up the production of the machine.
understood that the ejector, slightly ‘modiñed if
It is an object of the present invention to pro
desirable, can be readily incorporated in various
vide a simple, spring-actuated ejector Yby the use
types of heel seat fitting machines now in use.
of which the above-mentioned chips may be
Secured by screws 30 to a head casting 32 of
' quickly and effectively removed from crease plates
the main frame of the above machine is a bracket
of heel seat iitting machines of the general type
34Jhaving secured to it by a setscrew 36a ful
referred toabove, with the proper _amount of 40 crum pin 38 upon ‘whichlare' pivcted bell-crank
force to _deposit them in a container.
.
` With the above object in view and in accord
V>levers 49, 42 (Figs. 4 and‘ö), respectively, andan
adjustable cam 44. As will appear later, the bell
» ance with a feature of the present invention there
crank lever 4G, which may be referred to as a driv
is provided, in a heel seat ñtting machine, a mov
‘ing lever or an actuator, is latched in the cocked
able spring-energized actuator having -a iixed 45 l position shown in Figs. 2 to 4 and 6, to operate,
driving stroke, a reciprocatory ejector bar, pos
itive driving means between the actuator and
the ejector bar, mechanism comprising a cam
for rendering said driving means inoperative to
when released through mechanism to be later
described, the bell-crank lever 42, which may be
referred to as a drivenldever and comprises a de
pending arm 46 bifurcations 48 of which are ar
` cause chip ejecting movement of said bar to cease, . 50 ranged at opposite’sides of a screw 5U( Figs. l and
and means whereby said cam may be moved into
different adjusted positions in order to cause the
bar to be disconnected from the actuator at dif
_ferent portions of the driving stroke of the actu
ator.
3) utilized to adjust a heel seat reducing knife 5l
(Fig. 1) relatively to aknife` carrie'r`52ïmounted
for forward and rearward movement in a guidefway 54 (Fig. 3) of the machine frame.` ‘
`
A
.
VThe rear end of the bifurcated‘bar'ZU is mount-l
2,409,737
4
is coupled to or connected for positive movement
with the bell-crank lever 42, swings clockwise
from its position shown in Fig. 2 under the action
of the springs 68, 'l0 into engagement with the
bell-crankl leverv42- and to a dependingarm 62 5 spring buffer stop 16.
ed upon studs 56 secured to the lower ends of the
bifurcations 48 of the depending arm 46, the bar
being held on the studs by a cotter pin 58 (Figs.
3, 4 and 6). Secured to a forward arm 6€) of the
Mounted for swinging »movement in a bore of a
of the bell-crank lever 48 are studs. 64, .'86, re
spectively, which are fixed to opposite ends of a
tension spring 68 and are continuously urged to
„pin |06 (Figs. 2, 3, 5 and 6) to which is secured at
ward each other by said spring. _ Thebell-crank
opposite sides of the arm a pawl |88 (Fig. 6) . The
forward projection of the depending arm 62 is a
lever 48 is constantly urged clockwise,'as viewed. 10;'pawl |08 is constantly urged in a clockwise di
rection (Fig. 6) by a spring H2 upper and lower
in Figs. 1, 2, 5 and 6, about the fulcrum pin'38
-ends of which arev attached to studs H4, H6, re
by a strong spring 'I8 the lowerend of which is
_ spectively, secured to the pawl and to the de
connected to a forward arm-'|2ofthe-bell-crank
pending arm 62. Movement of the pawl |08 clock
lever 40 and the upper end of which lis attached
to a stud 'I4 (Figs. 1 and 2) secured to the head 15 wise, as viewed in Figs. 1, 2 and 5, by the action
of the tension spring H2 is limited by the en
casting 32 of the machine.
I>gagement of a roll H8 carried by the pawl with
While the machine is idle and during themajor
an eccentric face I I9 of the cam 44. The face I I9
portion of the operation of the machine, the de
of the cam 44 is so shaped and arranged that as
pending arm 62 of the bell-crank lever 46 is forced
against a spring-resisted buffer stop 16 mounted 20 the depending arm 62,/_which may be referred to
as a pawl carrying arm, reachesapproximately its
on the bracket»34, the 'arm> 68 of the bellecrank
cocked position, shown in Fig. 2, the pawl is per
lever«42 at such time'being held in its retracted
-idle positionby the spring 68, said position being
‘ mitted to Vmove into a notch or against a shoulder
|28 (Fig. 6)'formed inthe lower face of the for~
:arm 60 of said lever 42 with a spring-resisted 25:25 Ward armA 68 ofthe -bell-crank lever 42. When
determined by the engagement of the forward
»buffer'stopßll also Vmounted-.upon the bracket 34.
After the heel seat'portion25- (Fig. 1) of the at
tached outsole of the shoe 21» has been fitted, the
depending'arm 62 ofthe bell-crank lever 48 is
moved rearward away from the'spring buffer stop"y A430
'I6 by a‘shoulder-82` (Figs. 2, 5 yand 6) of a latch
the latch'84 is depressed by the rod 94, the depend
ing arm 62 of the bell-crank lever 40 swings for
ward, rotating with it through the positive pawl
and shoulder driving connection above described
>the bell-crank lever 42, with the result that the
T-shaped head 22of the bifurcated ejector bar 20
is moved forward against the U-shaped chip 26
84 which is mounted upon a fulcrum pin 86 car
left upon the crease plate 24, with sufficient force
vried byan .upstanding block 88 Asecured to the
to slide the chip over the forward edges 28 of
knife carrier 52. It will be’understood that as the
vknife carrier 52, together with the block 88,/ moves .35 the plate and-intothe.above-mentioned con
tainer (notl shown) at the front of the machine.
rearward the latch 84 is in a raised position,
:The cam'44 (Fig. 6) has secured to it a thread
since at such time it is held in engagement with
`ed'stud |22 which vfits into an arcuate slot |24
astopiface 96 of the block by a spring-pressed
`of‘the‘bracketßêl and is clamped in different op
plungere92 `and therefore the shoulder 82 of the
latch‘will contact the arm 62 during retraction :;40 erative >positions to the bracket by a nut |26.
When the- latch 84 is tripped, the bell-crank lever
of the» knife carrier. As explained later, almost
42 moves withíthe bell-crank lever 4I) until the
immediately after the latch 84 has been retracted
pawl |08. carried by the'depending arm 62 of the
it is tripped by-.a rod l94 to enable the depending
arm t62 to move forwardiunder spring action
bell-crank lever 4|) is swung out of engagement
_against the spring-buffer: stop-16 to'cause, through 45 with the shoulder Iza of the arm eo of the beu
-mechanism .which will be hereinafter described,
crank lever .42 as the result of the action of the
the‘chip 26 to be ejected, the machine then be
eccentric face I I9 ofthe cam 44 upon the roll
ing- idle. '-Accordingly,` when the machine is idle,
H8. -When the driving connection between the
.the knife carrier-52 is in its retracted position,
pawl carrying lever 62 and the arm 66 is broken,
shown in Fig.'5,~the latch-84 at such time being 50‘the driven bell-crank lever 42 operated upon by
depressed against the action of the spring-pressed
the tension spring 68 swings in a counterclock
plungerf92 (Figs.v2 and-6) away from the stop
wise direction, as viewed in Figs. 2 and 5, until
face 9|)V of’the block 88 bythe rod`94, which is
the arm 89 of said lever engages the spring buffer
stop 88, the pawl carrying lever 62 moving clock
actuated by mechanism hereinafter described.
As the knife» carrier-52 moves rearward after 55 wise until it engages the spring buffer stop 16.
the heel seat ñtting operation, thev shoulder 82 of
'It will be apparent that by setting the cam 44
the latchf84 forces the depending arm 62 of the
in different adjusted positions upon the fulcrum
actuator ‘rearward against the action of the
pin 38 it is possible to regulate the amount of
Asprings'68,l`|ll and, after reaching the position
forward travel of the bifurcated ejector bar 20
`shown in Figs. 2 and 6, comes to rest, the rear end 60 and accordingly the amount of force applied
of‘t'he latch then being positioned beneath but
against the chip 26 left upon the crease plate 24,
spacedv from the'rod'94 which is pivoted at its
-said amount being suñ‘icient to move" the chip
.upper -end to abent'lever 96. The lever 96 is
over the forward edges 28 of the crease plate and
adjustably secured to atrea'dle-controlled arm
into' but not beyond the container.
§98`- through which a multipart bulger 99 depresses 65 'Having described our invention, what we claim
>the heel seat portion of thesole of the shoe
'as new and desire to secure by Letters Patent- of
through_aU-shapedppening |08 (Fig. 4) of the
the United States is:
`crease plate-24. The rod 94 passes through a
1. Ina heel seat fitting machine, a movable
-vertical'bore I 02 in a lateral lug |84 of the bracket
- spring-energized actuator having a fixed driving
"34, the arrangement being such that when the 70-stroke, a reoiprocatory ejector bar movable to
îtreadle-operatedzarm'âß is swung clockwise as
remove a chip from the machine, positive driv
<viewed._'in','Fig.;2.upon releaseof a treadle (not
ing means between 4the actuator and the ejector
shown) by theoperatonthe-rodiswings the latch
"bar, mechanism comprising a cam for rendering
84 clockwise;.with therA result'that the depending
-said'driving means inoperative to cause chip eject
»arm-_ 62, ,Which:at .thatztimaias willI »appearlaten 75 ing movement of said bar to cease, and means
5
2,409,737
for setting said cam in different adjusted posi- l
tions in order to cause the actuator to be discon
nected from the bar at different portions of the
6
the pawl away fromv an idle retracted position,
and cam-operated means for moving the pawl
away from said shoulder of the lever at a prede
2. In a heel seat ñtting machine, an ejector 5 termined stage of the movement of the actuator
away from its cocked position to cause the lever
bar, a lever for operating said bar, a stop, a
to be disconnected from the actuator and to be
spring for constantly urging the lever to an idle
permitted to move back to its idle retracted
position against the stop, a spring-energized ac
position.
tuator having a constant driving stroke, a cou
6. In a heel seat ñtting machine, an actuator,
pling for positively moving said lever in response 10
a reciprocatory ejector bar, a lever operatively
to movement of the actuator, and means for ren
driving stroke of the actuator.
connected to the bar, a spring which connects
the actuator to the lever and is constructed and
arranged constantly to urge the ejector bar to an
idle retracted position, a stop, a second spring co
3. In a heel seat fitting machine, a reciprocable
operating With the first-named spring in urgingv
chip ejector bar, a lever pivoted to the ejector
the actuator to an idle position against the stop,
bar, a spring for constantly urging the lever to a
means ilor moving the actuator to a cocked posi
retracted idle position, an actuator, a stop, a
tion against the action of said springs, means
spring for urging the actuator in one direction
against 'the stop, means for causing the lever 20 comprising a latch for retaining the actuator in
its cocked position, means for causing the lever
to be moved positively in response to spring-ener
to be moved positively in response to movement
gized movement of the actuator toward said stop,
of the actuator away from its cocked position and
and mechanism comprising a cam for rendering
thus to cause said lever and accordingly the ejec
said means inoperative at a predetermined stage
tor bar to remove from the machine a chip
of the spring-energized movement of the actu
trimmed from the heel seat portion of the out
ator to break the driving connection between the
sole of a shoe, and means for disconnecting said
lever and the actuator, said lever when its driv
lever from the actuator at a predetermined stage
ing connection with the actuator is 4broken being
of the stroke of the actuator toward said stop to
moved back to its retracted idle position by its
dering inoperative the coupling between the ac
tuator and the lever at different stages of the
driving stroke of the actuator.
associated spring.
4. In a heel seat ñtting machine, a reciprocable
ejector bar, a carrier Vfor a heel seatreducing
knife, resilient means for constantly urging the
cause ejecting movement of said bar to cease and
30 to permit said bar to return to its idle retracted
position under the action of the ñrst-named
spring.
7. In a heel seat ñtting machine, an ejector
bar, a lever operatively connected t/o the bar, an
ator, a stop, a spring for constantly urging the 35 actuator, a pair of stops, a tension spring which
actuator in one direction against the stop, a latch
connects the lever and the actuator and is con
movable in response to movement of the knife
structed and arranged constantly to urge the
carrier for moving the actuator to a cocked posi
lever and the actuator to idle positions against
tionA against the action of the spring, means for
the respective stops, another tension spring con
tripping the latch to permit the cocked actuator 40 structed and arranged constantly to urge the ac
to move under the action of the spring toward
tuator with considerable force against its asso
said stop, and a driving coupling constructed and
ciated stop, a carrier for a heel seat reducing
arranged to cause the ejector bar positively to be
knife, a latch mounted upon said carrier and con
moved away from its retracted idle position in
structed and arranged upon retractive movement
response to spring-energized movement of the 45 of the carrier to move the actuator against the
actuator, said coupling being rendered inopera
action of said springs to a cocked position away
tive after the actuator has moved a predeter
from its associated stop, a coupling for securing
mined distance from its cocked position thereby
the lever to the actuator when said actuator has
permitting the ejector bar to move back to its
been moved approximately to its cocked position,
retracted idle position under the action of said 50 means for tripping the latch when the actuator is
resilient means.
in its cocked position to permit the then spring
5. In a heel seat fitting machine, a chip ejector
energized actuator to move toward the stop
bar, a lever for operating said bar, an actuator, a
thereby positively moving with it the lever and
spring, means for moving the actuator to a cocked
the ejector bar, and means comprising an ad
position against the action of the spring, a pawl 55 justable cam for breaking the coupling between
carried by the actuator, a shoulder which is
the actuator and the lever at a variable but pre
formed on said lever and is constructed and ar
determined stage of the spring-energized stroke
ranged to be engaged by said pawl when the
of the actuator to vary the extent of ejecting
actuator is approximately in its cocked position,
movement of said bar.
means for releasing the actuator from its cocked 60
position to permit it to be moved by said spring
THOMAS BAGGOTT CLARKE.
,
thereby causing the lever to be moved through
FREDERICK WILLIAM HENRY WILLIAMS.
ejector bar to a retracted idle position, an actu
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