close

Вход

Забыли?

вход по аккаунту

?

Патент USA US3082457

код для вставки
March 26, 1963
w. A. VORNBERGER
3,032,447
UPPER WIPING AND TRIMMING MEANS
Filed June 2, 1961
.
>
s Sheets-Sheet 1
IN VEN TOR.
Wa/fer A. l/ornberger
BAY
I
WWW/,1 A 77")’
March 26, 1963
w. A. VORNBERGER
UPPER WIPING AND TRIMMING MEANS
Filed June 2, 1961
3,032,447
I
3 Sheets-Sheet 2
FIG-3
‘
March 26, 1963
w. A. VORNBERGER
UPPER WIPING AND TRIMMING MEANS
Filed June 2, 1961
nil-n-
3,082,447
~
3 Sheets-Sheet 3
,,,,.
United States Patent 0 " cice
3,082,447
Patented Mar. 26, 1953
2
1
rod 48 of a ?uid actuated motor 50 mounted on the car
3,082,447
riage 12.
UPPER WIHWG AND TRIMMING MEANS
Walter A. Vornbcrger, Medford, Mass, assignor to
Jacob S. Kamhorian, Newton, Mass.
Filed June 2, 1961, Ser. No. 114,456
3 Claims. (Cl. 12—7.1)
Thus, actuation of the motor 50' to raise or
lower the piston rod 48 causes a corresponding raising
or lowering of the toe clamp 36.
A heel clamp 52 engageable with the heel end of the
last is slidably mounted for horizontal movement at the
top of the carriage 12. The heel clamp, comprising a
pair of divergent jaws 54 adapted to engage the heel
In lasting pointed toe shoes with machines such as
end of the last 38 and upper 40, is connected through a
that shown in Patent No. 3,011,186, granted December
5, 1961 or pending application Serial No. 100,979 ?led 10 post 56 to a bracket 58. The bracket 58 is connected to
the piston rod 60' of a ?uid actuated motor 62, so that
April 5, 1961, the wipers, in moving across the last to
actuation of the motor 62 to move the piston rod 60 causes
wipe the lasting margin of the upper down upon the in
a cor-responding movement of the heel clamp 52 toward or
sole, tend to crowd the lasting margin adjacent the toe
away from the heel end of the last. A ?uid actuated
and form pleats in the upper. Stress areas are formed
at the pleats which may cause cracking of the upper 15 motor 64 is mounted on the carriage 12 and drives a
leather as the wipers move across the insole.
In addi
tion, the pleats are undesirable and must be removed
before the lasted shoe can undergo an outsole laying
latch 66 into engagement with a toothed bar 68 on the
heel clamp 52 to lock the heel clamp in clamped position.
The frame ‘10 includes a block 70 upon which is slidably
mounted a wiper supporting plate 72. The plate 72 sup
operation.
In order to overcome the vabove cited objections, the 20 ports wiper holding cam plates 74 containing recesses
instant invention has been developed. The invention com
prises a lasting device that includes a plate upon which
at their forward ends in which are secured wiper blades
76. The cam plates 74 have arcuate cam slots 78 which
engage pins 80 ?xed to the subjacent plate 72 for con
trolling the movement of the cam plates and hence move
faces are swingably mounted. A trimming knife is
mounted between the wipers on the line of symmetry of 25 ment of the wiper blades to close them about the toe of
the shoe. The forward ends of a pair of wiper actuating
the wipers. A drive block, movable at a predetermined
links ~82 are pivotally connected to the cam plates. The
forward speed, is connected to the plate so that the plate
rear ends of the links 82 are pivotally connected to a
moves forwardly at a slower speed than the wipers. The
block
84 slidable in a slot 86 in the plate 72. The block
wipers are connected to the block to cause the wipers to
swing inwardly at the same time as they are moved for 30 84 is connected by way of a coupling 88, at its rear end,
to a piston rod 90 projecting forwardly from a ?uid
wardly by the plate, and a connection is provided between
actuated motor 92 mounted in the frame 10.
the knife and the block to project the knife forwardly
The coupling 88 has pivotally connected thereto a
of the wiping surfaces at a speed intermediate the speed
pair of short links 94 which extend rearwardly and to
of the block and the speed of the plate concomitantly
35 the rear ends of which are pivotally connected a pair of
with the inward swinging movement of the wipers.
laterally extending levers 96, which in turn are pivotally
Reference is now made to the accompanying draw
wipers having divergent, shoe embracing, wiping sur
ings wherein:
vFIG. 1 is a partially sectional side elevation of -a shoe
support;
P16. 2 is a plan view of the wipers and knife and the
actuating means therefor with the wipers and knife in
connected intermediate their ends to the plate 72 by
‘pivots 98. The outermost ends of the levers 96 are piv
otally connected at 100 to links 102, the rear ends of
which are pivotally connected to pivots 104. The pivots
104 are ?xed in slots 106 in the manner described in the
aforesaid Patent No. 3,0‘1.1,~186.
The wipers 76, in their retracted FIG. 2 position have
abutting surfaces 108, and divergent surfaces 110 which
and knife in forward position;
FIG. 4 is a section taken along the line 4—-4 of FIG. 45 act to engage the lasting margin of the upper and wipe it
down against the insole during the lasting operation.
1; and
Grooves 112 are provided in the contiguous surfaces of
PEG. 5 is a diagrammatic showing of the wipers and
retracted position;
FIG. 3 is a View similar to FIG. 2 showing the wipers
the ‘wiper cams 74 and the abutting and divergent sur
faces of the wipers, the grooves being located approxi
The machine comprises a shoe support, wipers and driv
ing means for the wipers. The support and wiper driv 50 mately halfway through the thickness of the wiper cams
and wipers. A knife 114 is slidably mounted in the
ing means correspond substantially in form to that dis
grooves 112 and has a sharpened cutting edge at its for
closed in the aforesaid Patent No. 3,011,186. The ma
ward end. The rearward end of the knife is connected
chine includes a frame 10 (FIG. 1). A carriage 12 is
to a knife holder 116 which has a toggle pin 11$ extend
slidably mounted on the frame for heightwise movement
relative to the frame. This is accomplished by height 55 ing upwardly thereof. A pair of knife actuating, toggle
knife as they engage the shoe upper.
links 120 are each pivotally connected at one end to a
wise movement of a sleeve 14, supported in a vertical
link 82 and are pivoted at their opposite end to the toggle
position on the frame 10 by brackets 16 and 18. The
pin 118. The knife extends through a slot in the knife
carriage is fastened to the sleeve by brackets 20 and >22
holder and is forked at its rearward end. A screw 122 is
and a pair of collars 24 and 26 are rigidly connected to
the sleeve above and below the bracket 20 to provide for 60 threaded into the holder 116 between the prongs of the
movement of the carriage with the sleeve. A ?uid 0p
fork and has a head bearing against the prongs to clamp
er-ated motor 28, having a piston rod 30 connected to the
the knife against the holder 116. By loosening the screw
lower end of the sleeve, provides for eifecting heightwise
122, the knife may be shifted lengthwiseto a desired po
movement of the sleeve v14 and hence the carriage 12. The
sition after which the-screw may be tightened to clamp the
sleeve 14 supports a toe post 32 upon which is mounted 65 knife in place on the knife holder.
a toe rest 34.
A toe clamp 36, for clamping a last 38 having a shoe I
With the wipers and knife in their retracted position as
seen in FIG. 2, and the carriage 12 in an elevated position,
the last 38 with the upper 40 and insole 42ithereon is
upper 40 and insole 42 thereon against the toe'rest 34, is
slidably mounted in the carriage 12 for movement height
wise of the carriage by being connected to a plate 44 70 placed on the toe rest 34. The motor 50 is actuated to
lower the toe clamp 36 against the insole to clamp the last
which is slidably mounted in a guideway 46 secured to
and shoe between the toe clamp and the toe rest. The
the carriage 12. The plate 44 is connected to the piston
3,082,447
3
4
motor 62 is actuated to press the heel clamp 52 against
the heel end of the last and the motor 64 is actuated to
lock the heel clamp. The motor 28 is then actuated to
lower the carriage 12 an amount sufficient to bring the
It should be understood that the present disclosure is
for the purpose of illustration only and that this invention
includes all modi?cations and equivalents falling within
the scope of the appended claims.
I claim:
1. In a lasting machine, wiping and trimming means
comprising: a wiper supporting plate; a pair of shoe end
upwardly facing surface of the insole below the bottom
surfaces of the wipers an amount substantially equal to
the thickness of the lasting margin 124 of the upper 40.
At this time the lasting margin is upstanding from the
embracing wipers, having'divergent wiping surfaces, sym
point of the last and from the'sides of the last adjacent
metrically mounted on said plate for swinging movement;
the point of the last (FIG. 1). Adhesive may now be 10 a knife mounted between the wipers on the line of sym
applied into the angle formed by the lasting margin and
metry of the wipers; a drive block; drive means connected
insole to bond the lasting margin to the insole during the
to the drive block for driving it forwardly at a ?rst speed;
subsequent wiping operation. Alternatively, the shoe
?rst joining means operatively connecting the block and
upper may be precemented with adhesive that becomes
the plate to move the plate forwardly at a second speed
effective during the pressure created during wiping. It
that is less than the ?rst speed in response to movement
is also within the purview of the invention to use other
of the block at said ?rst speed; second joining means
conventional attaching means such as tacks or staples to
connecting the wipers and the block operative to swing
secure the wiper margin to the insole.
the divergent surfaces of the wipers inwardly in response
The motor 92 is now actuated to move the piston rod
to forward movement of the block; and third joining
90 and block 88 forwardly at a predetermined speed. 20 means connecting the knife and the block operative to
Movement of the block, through the linkage comprising
project the knife forwardly of the divergent wiping sur
members ‘94, 96, 98, 100, 102 and 134, causes the plate
faces at a third speed that is intermediate said ?rst and
72 and the wipefs 76 supported on the plate to move
second speeds in response to movement of the block at
forwardly at a slower speed than theblock. Concomi
said ?rst speed.
rtantly with the forward movement of the plate 72 and 25
. In a lasting machine, wiping and trimming means
the wipers 7 6, the wipers are caused to swing toward each
comprising: a wiper supporting plate; a pair of shoe end
other about the center of curvature of the slots 78 by
embracing wipers, having divergent wiping surfaces,
the links 82 thereby causing the divergent wiper surfaces ' mounted on said plate for swinging movement; a knife
110 to move across the edges of the last and wipe or fold
mounted between the wipers on the line of symmetry of
the lasting margin 124 down against the insole 42.
When making pointed toe shoes on lasts havinga rela
30 the‘ wipers; a drive block; drive means connected to the
drive block for driving it forwardly; a wiper actuating
link extending from each wiper to the drive block, each
of said wiper actuating links being pivotally connected at
tively sharp point at their toe ends, the wiping operation
tends to cause the upper stock to bunch up and form
pleats adjacent the point of the last between the converg
ing wiper surfaces 110 as indicated at 126 in FIG. 5. To
relieve the stresses formed by the pleats and trim some or
all of the pleated material, the forward movement“ of the
one end to a wiper and at the other end to the drive block,
whereby forward movement of the drive block effects an
inward swinging of the divergent wiping surfaces; and a
knife actuating link extending from each wiper actuating
link to said knife, each of said knife actuating links being
block 88, through the linkage formed by members 82, 120
and 118 causes the knife 114 to move along the line of
symmetry of‘the wipers from an initial. position rearward
of the surfaces 119 and of the forward end of the sur—
faces 108 as indicated in FIG. 2 to a ?nal position into the
angle formed by the surfaces 110 as indicated in FIGS. 3
and 5. The knife is moved forwardly at a faster speed
than the plate 72 and at a, slower speed than the block 38
pivotally connected at one end to a wiper actuating link
and at the other end to the knife, whereby the knife is
projected forwardly of the divergent wiper surfaces con
comitantly with the inward movement of said wiping
surfaces.
7 3. In a lasting machine, wiping and trimming means
comprising: a wiper supporting plate; a pair of shoe end
so that the knife is projected forwardly of the wiper
embracing wipers, having divergent wiping surfaces, sym
surfaces 110 shortly after the surfaces 119 have moved
metrically mounted on said plate for swinging movement;
over the edges of the last and have started to form the
a knife mounted between the wipers on the line of sym
pleats 126. By having the knife move slower than the
metry of the wipers; a drive block; drive means con
block 82, it moves at a speed slow enough to efficiently 50 nected to the drive block for driving it forwardly at a
cut the upper stock as it is being formed into pleats and
?rst speed; joining means operatively connecting the block
the knife has a relatively'short stroke so that it does not
and plate to move the plate forwardly at a second speed
have along unsupported span that could cut into the
that is less than the ?rst speed in response to movement
insole or snap during the application of the overwiping
of said block at said ?rst speed; a wiper actuating link
andbedding pressure described below.
‘
extending from each wiper to the-drive block, each of
said wiper actuating links being pivotally’ connected at
As the wipers start their forward and inward movement,
the motor 28 is actuated to apply an upward force by the
toe rest 34 against the last to thereby provide an overwip
ring pressure between the bottom of the last and the up
one end to a wiper and at the other end to the drive block,
whereby forward movement of the drive block effects an
inward swinging of the divergent wiping surfaces; and a
wardly facing surfaces of the lasting margin and insole 60 knife actuating linkextending from each wiper actuating
during ‘the forward and inward movementof the wipers.
link to said knife, each of said knife actuating links being
After the wipers have completed their movement, an in
pivotallyconnected at one end to a wiper actuating link
creased upward force may be applied by the motor 28
and at the other end to the knife, whereby the knife'is
‘ to provide a bedding pressure between the wiper bottoms" '
and the lasted, margin.
.
projected forwardly of the divergent wiping surfaces at a ,
third speedthat is intermediate said ?rst and second
speeds. concomitantly with the inward movement of said
After the completion of the wiping operation, the motor
28 is actuated to lower the last and shoe, the motor 92 is '
wiping
surfaces
.
V
_
V
'
actuated to retract the’ wipersand knife, the motor 46 is
actuated to disengage the toe clamp 36 from the shoe, the ,
' motors, 64 and 62‘are'actuated to disengage the heel clamp to
> References Cited in the file of this patent .
UNITED STATES’ PATENTS
v
52 from the last and shoe and the motor 2$is actuated to . -
raise the last and shoetoltheir initial position.- The lasted
shoe can how be removed from the machine.
469,972
Morey ______ -Q ________ __ Mar. 1, 1892
1,382,006
Lund ___________ _r___-___ June 21, 1921
Документ
Категория
Без категории
Просмотров
0
Размер файла
484 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа