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Патент USA US3061862

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Nov. 6, 1962
p. 1.. BRAY ETAL
3,061,852
COMBINED WIPER AND KNIFE F‘OR OPERATING ON SHOES
Filed Aug. 15, 1960
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Donald LBray
Donald B. Johnson
By iheirAttorney
Nov. 6, 1962
D. L. BRAY ETAL
3,061,852
COMBINED WIPER AND KNIFE FOR OPERATING 0N SHOES
Filed Aug. 15. 1960
3 Sheets-Sheet 2
‘ vNov. 6, 1962
D. L- BRAY ETAL
3,061,852 ‘
COMBINED WIPER AND KNIFE FOR OPERATING ON SHOES
Filed Aug. 15, 1960
3 Sheets-Sheet 3
0””
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United States Patent O??ce
1
3,061,852
3,061,852
Patented Nov. 6, 1962
2
upper stock at the toe end, which has been at least partly
COMBINED WWER AND KNEE FQR OPERATING
0N §HOES
gathered inwardly during operation of the main wipers,
and then to wipe inwardly the trimmed margin. As here
Donald L. Bray, Beverly, and Donald B. Johnson, George
town, Mass, assignors to United §hoe Machinery Cor
poration, Flemington, N.J., a corporation of New
of novel character in itself in that it is adapted both to
.lerse
y Filed Aug. 15, 1960, Ser. No. 49,768
6 Claims. (Cl. 12—7.1)
This invention relates to mechanism for lasting the
ends of shoes, and is more particularly concerned with the
provision, in a lasting machine, of means for shaping a
pointed toe by removing excess overwiped material from
the margin of an upper on the bottom of the shoe, this
means also being effective to perform an overwiping
operation on the margin. For purposes of illustration the
invention is herein shown as embodied in a forepart, ce
ment lasting machine of the type disclosed in an applica
in shown (in two different forms of construction), the
combination tool referred to is, so far as we are aware,
shear off the unwanted material and then to perform an
overwiping operation in the critical toe area on the
remaining marginal stock.
Preferably, the trimmer
10 wiper tool is arranged to operate in substantially the same
plane as the operating plane of the main wipers and is
operatively connected to a crossbar arranged to actuate
their advance and closure. The construction thereby in
sures, at the proper moment in the course of a cycle of
lasting operations wherein the operator is otherwise con—
cerned with matters of upper positioning and proper
direction and degree of stock tensioning, that the unwant
ed material will be automatically trimmed from the toe
bottom and without particular attention on his part.
tion Serial No. 788,396, ?led January 22, 1959 in the 20
The foregoing and other features of this invention,
names of A. W. Rockwell, Jr. and E. F. Mitchell, now
together with novel details in construction, will now be
Patent No. 3,022,527, granted February 27, 1962, but it
more particularly described in connection with an illus
will be understood that use of the invention is not thus
trative embodiment and with reference to the accom—
restricted nor is it limited to work upon any one class
of shoe construction.
The elimination or reduction of excess, wrinkled stock
in the overlasted margin of a shoe upper being conformed
to its last has long been a serious problem in manufactur
ing shoes, especially those being cement ?at lasted. The
problem, moreover, is more critical and more urgently in
need of solution as the toe ends of shoes become, by
reason of increasing demands of fashion, narrower and
more pointed, thus requiring greater care in their shaping
panying drawings thereof, in which:
FIG. 1 is a plan view of a portion of a machine for
shaping the forepart of a shoe upper to be cement lasted
and indicating main wipers and an auxiliary trimmer
wiper together with their actuating mechanism, a bed
plate being centrally broken away from its left half so
that its actuating cams appear in full lines on the left but
only in phantom lines on the right;
FIG. 2 is a plan view corresponding to a portion of
FIG. 1 and showing an upper on its last and in initial
and in eliminating the objectionable projecting portions
relation to the lasting instrumentalities;
of pleated material. When the overwiped margin does 35 FIG. 3 is a plan view corresponding to FIG. 2 but with
not lie ?at, a sole cannot thereafter be attached in a neat
the wiping and trimming instrumentalities in their sub
and attractive manner. Additionally, in the case of point
ed toe work, nonremoval of the protruding material from
the inwiped margin at the extreme toe end often results in
wipers riding upon such material and thereby straining
and rupturing a portion of the upper visible in the ?nished
shoe. Various devices have hitherto been devised to aid
an operator in removing the unwanted pleated portions of
sequent operating positions with respect to the shoe; _.
FIG. 4 is a section taken in a vertical plane extending
lengthwise of a shoe as ?rst presented to a support in the
machine and passing through the extreme toe end;
FIG. 5 is a section corresponding to FIG. 4 but show
ing the wiper-trimmer at one stage of its operation;
FIG. 6 is a section corresponding to FIG. 5 but show
the overlasted margins; in most instances trimming de
ing the wiper-trimmer in its ?nal operating position rela
vices separate from the lasting mechanism have been 45 tively to the shoe and its support;
provided for use at a different work station thus requir
ing extra shoe handling, and in one or two cases a lasting
machine has been ?tted with independently actuated but
somewhat cumbersome upper trimming means under the
control of an operator.
In view of the foregoing and in order to facilitate the
shaping of the ends of shoes, especially those which are
precemented and are to have the margins of their uppers
FIG. 7 is a bottom view of the wiper-trimmer in the
initialvportion of the trimming stroke on an overwiped
margin; and
FIG. 8 is a view in side elevation of an end portion of
a modi?ed form of the wiper-trimmer, the end being part
ly broken away better to show its shape.
In the Rockwell et a1. patent referred to above and re
lating to a lasting machine herein partially shown for
at the toe end wiped inwardly substantially in the plane 55 convenience in illustration, there is described and claimed
of their shoe bottoms, it is a primary object of this inven
the. combination with a pair of main wipers 10, 12 (FIGS.
tion to provide, in combination, in a lasting machine hav
1, 2, 3) initially extending around the toe end of a shoe
ing wipers and power means for operating these wipers,
upper U on its rest L and along its sides, of an auxiliary
a trimming mechanism operable by the power means for
end wiper. The mounting of that wiper is, in some re
removing excess marginal stock immediately upon its be 60 spects, similar to that of a novel trimmer-wiper herein
ing urged inwardly of a shoe bottom, said mechanism
after to be described and found to be of special value in
also being effective to operate as a wiper upon the trimmed
operating upon pointed toe footwear. Shaping of the up
stock.
per upon its last by means of the, exemplary machine,
To the end just stated, and in accordance with a fea
while in general resembling performance of the Rockwell
ture of the invention, there is provided in a lasting
et al. machine employing the toe end wiper not adapted
machine the combination with a pair of main wipers ar
to trim, is diiferent in important detail in the later stages
ranged initially to extend around the toe end of a last
having an upper and an insole thereon and along the sides,
and power means for advancing these wipers and closing
of a cycle as will be made clear. It will be helpful at this
point brie?y to explain some of the basic structure and
procedure common to this type of lasting machine. An
them to wipe the margin of the upper inwardly against 70 operator presents the last L bottom down to the machine
the bottom of the last, of a tool operable by the power
with its toe end face against a toe end distributor 16
means between the main wipers, ?rst to trim away excess
(FIGS. 1, 2 and 4) and with an insole VI assembled on its
3,061,852
4
3
bottom in contact with a vertically movable shoe rest
generally designated 18 (FIGS. 1, 4 and 6). The margin
of the forepart of the upper at this stage, as indicated in
FIG. 2, is outspread and extends above the distributor
{16 and so-called dog-ear distributors 20, 20 and between
the jaws of distributor-grippers 22, 22 and of ball grip
pers 24, 24 (FIG. 2), respectively. These grippers are
then power actuated to seize the margin and provide a
Referring to FIGS. 2 to 5 inclusive, the adjustable focal
point of the main wipers 10, 12 when fully open is sub
stantially at the tip of the toe end of the shoe, a semi
circular portion near the inner edge of one main wiper
herein being shown as de?ning the focal point and acting
as a pivot bearing for a similarly shaped portion in the
other main wiper. In proceeding from the relative po
sitions of parts shown in FIG. 2 to that shown in FIG. 3,
it is rather important to observe that the sequence is such
forward draft thereon, whereupon the distributors 20,
20 are moved upwardly releasably to clamp the margin 10 that the main wipers pivot about their focal point partly
to close and wipe the margin inwardly against the shoe
against the undersurface of the main wipers 10, 12 which
are then stationary and fully open.
Next, in order to ele
bottom prior to effective or working advance of the trim
vate the last and thus obtain conformity of its upper by
mer-wiper 38. The initial in-gathering of marginal stock
the shoe rest 18 is raised by upward movement of a post
26 (FIGS. 1, 4) to the top of which the rest is secured.
This movement ceases when the forepart of the last bot
plaits much larger than in adjacent marginal stock) to be
centrally and at the extreme toe end during the early
heightwise tensioning thereof from the ball area on one
side, around the toe end, to the ball area on the other side, 15 closing of the main wipers sets up the unwanted excess
tom has arrived between, and substantially in the plane of,
material (generally in the form of protruding folds or
severed by the oncoming cutting edge 56 or 58. The
main wipers continue closing to complete inward wiping
the wipers 10, 12, other means then being effective to lock 20 of marginal stock and without interference with the
trimmer-wiper 38, the ways 52 initially being angularly
the shoe against displacement due to lasting stresses.
divergent from the focal region for this purpose yet now
Being satis?ed with operating conditions, such as the posi
extending in more nearly parallel relation to provide sup
tion of the upper on its last, the operator may now initi
port for subsequent further inward movement of the tool
ate operation of the several wipers.
Each of the main wipers 10, 12, as in the Rockwell et 25 38 as it ?nally wipes inwardly the remaining trimmed
marginal material as shown in FIG. 6.
a1. construction above cited, is supported by its carrier 28
This wiping-in at the extreme toe end is relied upon to
(FIG. 1) which is provided with a pair of rolls 30, 30
give clean, taut, unbroken lines in the upper of the
for cooperating with the walls of cam slots 32, 34 re
?nished shoe; without the described preparatory trim
spectively formed in a bed plate 36 secured to the main
frame. The bed plate underlies a cover only a corner 30 ming by the tool 38 it is frequently found, if the toe
be pointed, that mere wiping-in in this area, as performed
portion of which is shown but which is provided to pro
by the auxiliary wiper of the mentioned Rockwell et al.
tect the parts from dust and dirt. For operating these
construction for instance, produces excessive drag upon
wipers and a combination trimmer-wiper tool 38 (FIGS.
and hence too high a tension in the upper about the end
‘1-8) in appropriate sequence, each carrier is connected
by a link 40 to an end of an equalizing lever 42 pivotally 35 of the last which at once causes an unsightly rupture of
the upper. Use of the tool 38 eliminates undue straining
secured to a piston rod 44 by means of a pin 46. Ar
of the upper by producing a smooth overwiped margin
ranged on the rear end of the rod 44 is a piston (not
in a single stroke.
shown) operative in a cylinder 50 (FIG. 1) affixed to
In order to sustain the toe end of the insole I in ?at
the frame. The trimmer-wiper 38 is detachably secured
unbuckled relation against the last bottom during the
at its upturned end to the mid portion of the lever 42 and
trimming-wiping operations on the lasting margin, tilt
is formed with a narrower, forwardly extending, ?at por
able articulate supports 60, 62 (FIGS. 1, 4 and S) such as
tion which is slidably supported upon ways or shoulders
provided in the Rockwell machine or the equivalent there
52, 52 respectively rabbeted in the inner edges of the
of preferably are included in the shoe rest 18. It will
main wipers 10, 12. Upper or wiping surfaces of these
also be understood that means is provided for shifting
wipers and of the tool are ?ush. It will be understood
the end distributor 16 to a lowered out of the Way position
that upon admission of ?uid, preferably air, under pres
indicated in FIG. 5 when the inwiping and trimming are
sure in the rearward end of the cylinder 50, advance
to occur. The balance of a cycle of operations does
and closure of the main wipers and actuation of the
not differ from that disclosed in the Rockwell et a1.
trimmer-wiper 38 are effected against the resistance of a
50 application referred to.
return spring 54 on the rod 44.
From the foregoing it will be appreciated that this
For enabling the forward end of the trimmer-wiper 38
invention provides improved means conveniently operative
to operate on inwardly wiped marginal material of the
for shaping the toe ends of ‘shoes, the formation and
upper at the extreme toe end, the region which is especial
organization of parts in the critical crowded area of the
ly critical in shoes having very pointed or so-called
“needle toes,” the main wipers ?rst bodily advance and
machine permitting their cooperation in highly effective
commence closure to gather and partially wipe the mar
ginal stock inwardly over the toe edge of the insole I. An
manner.
excess of upper stock shown in FIGS. 5 and 7 must ac
cordingly then be removed from a central portion of the
.toe end, and for this purpose the front end of the tool
38 is formed with beveled faces having a leading cutting
Having thus described our invention, what we claim as
‘new and desire to secure by Letters Patent of the United
States is:
1. In an end lasting machine, the combination with a
pair of main Wipers arranged initially to extend around
the end of a last having an upper and an insole thereon,
edge 56 (FIGS. 2, 4 and 6). Preferably this edge is re
and power means for bodily advancing and closing the
cessed in V-shape, the bevel faces being disposed toward
main wipers to wipe the margin of the upper inwardly
the insole I. It is found that in crossing the tip edge of
the insole before trimming the V-shaped edge is highly 65 against the bottom of the last, of a tool operable between
the main wipers ?rst to trim away excess marginal stock
bene?cial in nicely shaping the extreme toe end of the
gathered by the main wipers and then to wipe inwardly
upper. When it is desired to shear away the excess,
the trimmed margin.
overwiped marginal stock somewhat closer to the shoe
2. A machine for shaping uppers over lasts as set
bottom, an alternate form of the tool 38 (shown in FIG.
8) is used. Thus, as there illustrated, a cutting edge 70 forth in claim 1 and further characterized by the pro
58 is closer relatively to the upper or wiping surface of
the tool 38, and enabled to be closer to the insole dur
ing trimming, similar but oppositely inclined bevel faces
‘de?ning the edge 58 which, as before, is preferably shaped
with a recessed apex.
vision of means for operatively connecting said tool
to said power means.
.
3. A machine as set forth in claim 1 and further char
acterized in that the leading edge of the tool is recessed
75 in V-shape and spaced from the wiping surface of the tool
3,061,852
5
for trimming operation between said surface and the
wiping surfaces of the main wipers.
4. In a machine for shaping the toe end of a shoe
having an upper mounted on ‘its last, a pair of articulate
main wipers operable ‘to advance and close substantially
in a plane, means for relatively moving the last height
wise with respect to the wipers to tension the upper
and position the bottom of the last substantially in said
plane with its extreme toe end closely adjacent to the
6
port for supporting a last having a shoe upper and insole
thereon, wiping and trimming means comprising: a pair
of symmetrically disposed shoe end embracing wipers;
means mounting the wipers for forward and inward
movement; drive means operatively connected to the
wipers to move them forwardly and inwardly across
the insole to wipe the lasting margin of the upper against
the insole; guide means formed in adjacent inner surfaces
of the wipers; a knife mounted for sliding movement in
locality in which the main wipers are to commence their 10 the guide means; and means to project the knife forwardly
closure for wiping the margin of the upper inwardly, and
of the wipers.
a trimmer-wiper movable lengthwise of the shoe in said
6. The wiping and trimming means according to claim
plane and across the margin at the toe end after the wipers
5 wherein the knife projecting means comprises a con
have partly closed, said main wipers being formed at their
nection between the knife and the drive means so that
adjacent inner edges with angular ways for slidably sup 15 the knife is automatically projected forwardly of the
porting the trimmer-wiper, the ways initially being diver
wipers during the forward and inward ‘movement of the
gent heelwardly from said locality and assuming more
wipers.
‘nearly parallel relation during the closure of the main
wipers whereby the trimmer-wiper, after moving across
References Cited in the ?le of this patent
the margin to trim it, is supported to perform an in
UNITED STATES PATENTS
ward wiping movement on ‘the trimmed portion of the
margin.
5. In a lasting machine having a shoe support for sup
1,382,006
2,668,967
Lund ________________ __ June 21, 1921
Kamborian et al. ______ __ Feb. 16, 1954
Disclaimer
3,061,852.~D0nald L. Bnay, Beverly, and Donald B. Johnson, Georgetown,
Mass. COMBINED WIPER AND KNIFE FOR OPERATING
ON SHOES. Patent dated Nov. 6, 1962. Disclaimer ?led Nov.
12, 1965, by the assignee, United Shoe Machinery Um‘ponatz'on.
Hereby enters this disclaimer to claims 1, 2, 5 and 6 of said patent.
[Oy?ez'al Gazette May 3, 1966.]
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