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Патент USA US2122486

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July 5, 1938.
c, A_ NEwHALL
LIP TURNING MACHINE
Filed May 15, 1936
' 2,122,486
'
2,122,486
Patented July 5, 1938
UNITED smres
PATENT OFFICE
2,122,486
LIP TURNING MACHINE
Carl A. Newhall, Peabody, Mass, assignor to
United Shoe Machinery Corporation, Paterson,
N. J., a corporation of New Jersey
Application May 15, 1936, Serial No. 79,955
6 Claims. (C1. 12—30)
This invention relates to lip turning machines
and is herein illustrated and described as em
bodied in a machine for raising and turning back
from the base of the channel the lip of an out
5 sole which may be temporarily attached to a shoe.
It is an object of the invention to provide an
improved machine of the type under considera
tion. In accordance with a feature of the in
vention there is provided means for raising a
channel lip formed on a sole, a tool adapted to
extend beneath the raised lip and having a move
ment of rotary oscillation to turn the raised lip
away from the base of the channel, and means
for setting the lip in open position. In the illus
' trated machine the lip-engaging tool exerts a
prying action upon the raised lip to open the
channel; and the lip-raising means comprises a
plow which is oscillated to exert a feeding action
upon the sole as the work is presented by the op
20 erator. The plow advances at a time when the
2
which extends a crank pin 20. Mounted upon
the crank pin 26 is one end of a connecting rod
22, the opposite end of which connecting rod is
mounted upon a pin 24 extending from a crank
26. Extending from the head I2 is a bearing 28
in which is journaled a shaft 30. The crank 26
is secured upon the shaft 30 in any desired posi~
tion of angular adjustment about the axis of the
shaft by means of a clamping bolt 32 which ex
tends through a lug 34 and is threaded into an 10
other lug 3d. The crank 26 is split and the bolt
lid serves to draw the two portions of the crank
25 together to clamp the crank on the shaft 30.
The radial displacement of the crank pin 24 from
the axis of the shaft 38 is considerably greater 15
than that of the crank pin 29 from the axis of
the shaft M. In the illustrated machine one
complete revolution of the shaft I4 will cause
the shaft 39 to oscillate through an angle of
about 80°. The head 52 is shaped to enclose
lip-turning tool is not exerting downward pres
the head I8, connecting rod 22, and crank
sure upon the lip and executes its back feed
movement at a time when the lip-raising tool
presses the lip and thereby the sole downwardly
and relieves the frictional engagement between
the base of the channel and the plow. The lip
setting member of the illustrated machine op
erates by pressure upon the turned-back lip to
set the lip. This presser member and the plow
are both secured to the same support, the presser
member moving in unison with the plow. The
oscillatory movement above referred to renders
the presser member more e?ective in its setting
action upon the lip.
26, and is provided with a cover plate 38 which
may be removed to provide access to these parts.
Secured upon the outer end portion of the
bearing 28 is a bracket All}. Extending downward 25
ly from the bracket ‘it is a pin 42 upon which is
ro-tatably mounted a sleeve Aid. A lug 46 extend
ing from the sleeve 154 has secured to it an inte
gral member consisting of two parts, namely a
plow it for raising a channel lip and a ?at mem 30
ber 56 having a smooth under surface adapted
to press down the overturned channel lip. Ex
tending from the sleeve M is an arm 52 which is
connected through a ball and socket joint 54 to
one end of a connecting rod 56. The opposite
end of the connecting rod 56 is mounted upon
an eccentric pin 58 extending from the end of
the shaft 30.
' The invention further consists in features of
construction and combinations and arrange-.
ments of parts hereinafter described and claimed.
The invention will be explained with reference
to the accompanying drawing, in which
Fig. 1 is'a view in perspective of the upper
40
portion of the improved machine;
Fig. 2 is a plan View of the shoe-engaging in
strumentalities of the machine in operation upon
a channel formed on the outsole of a shoe;
Fig. 3 is a view in elevation of the shoe-engag
ing members shown in Fig. 2;
Fig. 4 is a view taken in the direction of the
arrow A of Fig. 3;
Fig. 5 is a sectional view taken on the line
V-—V of Fig. 4; and
Fig. 6 is a sectional view similar to Fig. 5 but
with one of the operating instrumentalities shown
in a different position.
The supporting structure of the machine con
sists of a frame it adapted to stand upon the
?oor and supporting a head l2. A shaft [4
which is journaled in a bearing formed in the
head 12 carries a pulley i6 which may be driven
by a belt from any convenient source of power.
Mounted upon the shaft [4 is a head [8 from
Non-rotatably clamped upon the end portion
of the shaft 36 by a screw ?ll is a split sleeve 40
An iron 6t extends in a general direction
parallel to the axis of the shaft 30 beyond the
end of the shaft and of the eccentric pin 58.
The outer end of the iron 64 is shaped to enable
it to raise the lip of the sole. This end portion
of the iron 54 extends downwardly, terminating
in a blunt point 55 which is adapted to bear
against the shoulder of the channel. Extending
upwardly from the point 66 is a blunt edge 68
which, as best shown in Fig. 6, is concave in the
vicinity of the point 66. The concavity of the
edge 58 straightens out and becomes somewhat
convex at the upper portion of the edge 68.
Between the plow 48 and the pressing mem
ber 53 is a recess ‘it into which the edge 68 i
the point 65 extend.
The plow 43 has an
outer end portion 72 (Fig. 1) which is adapted
to serve as a gage against which the shoulder
of the channel is held. Beneath the pressing
member 59 is a downwardly extending surface
2 ,
2,122,486
14 which likewise constitutes a gage engageable
with the shoulder of the channel. The bearing
surfaces 12 and ‘M and also the point 66 are
substantially
the line of the axis of the shaft
0.
5,
I
having
The loperation
a channel of
lipthe
L ismachine
illustrated
upon
in Figs.
a shoe
2 to
6, inclusive. Before presenting the shoe to the
machine an end portion of the lip is ?rst turned
10 up by hand. The shoe is then held with the
shoulder‘ of the channel against the surfaces 72
and 14 with the pressing member 50 extending
over the turned lipL. The iron 64 will partake
of the oscillatory movement of the shaft 30 and
L, the edge 68 will accordingly oscillate about the
point 66 which engages the shoulder of the chan
nel. As the iron 64 is thus oscillated the blunt
edge 68 of the lip-raising member will oscillate
about the point 65 which, as above indicated, lies
substantially in the axis of oscillation, and pry
up the lip L to open the channel. The turning
or prying action of the edge 58 upon the lip Lv
is illustrated in Figs. 5 and 6, which show the
edge 5:38 in its limiting positions. The concavity
“ of the edge 5?; above referred to is provided to
avoid sharply creasing the lip at the shoulder.
The oscillation. of the shaft 36 will also, through
the connecting rod 56, cause an oscillation of the
sleeve 154 and thereby of the pressing member 50
and the plow 48. The angular position of the
sleeve 62 upon the shaft 30 is so adjusted in
relation to the angular position of the eccentric
pin 5-3 that when the edge 68 is moving from
the position shown in Fig. 5 to the position shown
~ in Fig. 6 and is pressing outwardly and down
wardly upon the lip L the plow do and the press
ing member 5%] will be moving in a direction oppo
site to the feed of the work, and when the edge
68 is not bearing outwardly or downwardly upon
, the lip» L the plow £58 and the pressing member
50 will be moving in the direction of feed of the
work. As the operator holds the Work with up
ward and inward (i. e. toward the left as viewed
in Figs. 5 and 6) pressure against the plow 48
and the pressing member 5a these members in
their feeding movements tend to carry the sole
along with them, while during the back feed
movement of the plow and pressing member the
downward and outward thrust of the edge 68
minimizes the frictional engagement between the
shoe and the plow 48 and pressing member 50
and thereby overcomes any tendency on the part
of those members to retract the shoe
the course
of the back feed movement. The oscillatory feed
movement of the member 5t causes this member
to exert an ironing or smoothing action upon the
lip L to set the lip in its turned position. The
limiting positions of the movement of the edge
68 may be varied by loosening the screw Gill and
readjusting the sleeve 62 about the axis of the
shaft 38. The timing of the feeding movement
of the plow £58 and the pressing member 5% is
adjusted by loosening the screw 34 and turning
the shaft 30 relatively to the crank 26. In
order to avoid changing the throw of the edge
63 the screw 68 may also be loosened and the
sleeve 62 held stationary during this adjustment.
Having thus described my invention, what I
claim as new and desire to secure by Letters Pat
ent of the United States is:
1. A machine of the class described comprising
a plow for raising a channel lip formed on a sole,
a tool adapted to extend beneath the raised lip,
means for imparting to said tool an oscillation
about a center which is adjacent to the shoulder of
the channel and having a heightwise comporifent
relatively to the sole to cause said too; to turn'the
raise-d lip away from the base of the channel,
and means for setting the lip in open position.
2. A machine of the classiidescribed compris
ing means adapted to extend into a channel
formed upon a sole for raising the lip of the
channel, a tool adapted to engage the raised lip, 10
means for imparting to said tool oscillatory
movement having a downward component to turn
the raised lip back away from the base of the
channel, and means for imparting to said lip
raising means an oscillatory movement in the di
rection of feed to facilitate feeding the sole.
3. A machine of the class described comprising
means adapted to extend into a channel formed
upon a sole for raising the lip of the channel,
a tool adapted to engage the raised lip, means for
imparting to said tool oscillatory movement hav
ing a downward component to turn the raised lip
back away from the base of the channel, and
,means for imparting to said lip-raising means
an oscillatory movement in the direction of feed, ~
the two movement-imparting means being con
structed and arranged to cause the advance feed
movement of the lip-raising means to take place
while the lip-engaging tool is not exerting‘ a down
ward pressure upon the channel lip and to cause
the lip-raising means to execute its back feed
movement at a time when the lip is subjected to
downward pressure from the lip-engaging tool.
4i. A machine of the class described comprising
a tool adapted to engage a channel lip, a plow
positioned in advance of said tool for raising the
lip, means for operating said lip-engaging tool
to turn the raised lip away from the face of the
channel, a presser member positioned upon the
opposite side of said lip-engaging tool from said
plow adapted to press downwardly upon the
turned-back lip to set the lip, a common support
for said plow and said presser member, and
means. for oscillating said support to cause said
plow and said presser member to oscillate length
' wise of the channei.
5. A machine of the class described comprising
a plow adapted to extend into a channel formed
on a sole for raising the lip of the channel, a
gage engageab-le with the shoulder of the raised
lip after the lip has been turned over, a member
extending inwardly of the sole beyond said gage
and having a smooth under surface for holding
down the turned-over lip, means located between
said plow and said hold-down member for turn- ,
ing over the raised lip, and a common support for
said plow, said gage and said hold-down member.
6.. A machine of the class described comprising
two gages adapted to engage the shoulder of a
channel formed on a sole at localities spaced
lengthwise of the channei, a plow adapted to ex
tend into the channel for raising the lip of the
channel, a member provided with a smooth under
surface for holding down the channel lip after
the lip
been raised and turned over, a tool ,
adapted to extend beneath the raised lip at a
iocality between said gages, and means for oscil
iating said tool about an axis which lies substan
tially in a. line joining the two gages to cause the
tool to exert a prying action to turn over the‘
raised lip.
CARL A. NEWHALL.
70
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