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Патент USA US2296964

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Sept, 29, 1942-
,A.’ E. USHAKOFF
'
2,296,964
MACHINE FOR INSERTING BLOCKS IN HOLLOW ARTICLES
Filed April 21, 1941
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Sépt. 29, 1942.
IA.E.>USHAK'OFFY
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‘2,296,964’.
.MACHINE FOR INS'ERTING BLOCKS IN HOLLOW ARTICLES
Filed April 21, v1941
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Patented Sept. 29, 1942
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2,296,964
UNITED STATES PATENT OFFICE
MACHINE FOR INSERTING BLooKs IN
HOLLOW ARTICLES
Alexis E. Ushako?’, Beverly, Mass., assignor to
United Shoe Machinery Corporation, Fleming
ton, N. .‘L, a corporation of New Jersey
Application April 21, 1941, Serial No. 389,571
10 Claims. (01. 12_49.1)
This invention relates to machines for insert
ing an element in a hollow article and is herein
illustrated as embodied in a machine for insert
ing a block in the open end of a hollow blank of
stretchable material which is to be used as the
cover of the heel of a shoe.
In Letters Patent of the United States No.
pansible guiding member and inserted in the
mouth of the cover blank.
The expansible, 'hollow block-guiding member
9 normally has the outline of a frustum of a cone
:and is composed of thin, narrow strips of spring
steel which overlap one another sidewise to ,a
certain extent at the base of the guiding member
and to a greater extent at the top. The lower
2,236,552, granted April 1, 1941, upon an applica
ends of the strips are clamped to the conical face
tion ?led in my name, there is disclosed a hol
low heel-cover blank in the form‘ of a swollen 10 ‘of a hollow base H by means of small screws [3
which are threaded through the surrounding up
gel which is capable of stretching somewhat‘and
standing portion of an annular member 15 and
will shrink by loss of liquid. There are de
press the bases of the strip ?rmly against the
scribed in said Letters Patent two methods of
conical face of the base II, the annular mem
using such a blank in the covering of a heel.
ber l5 being fastened to the top of a stationary
15
i
According to one method, referred to therein as
horizontal plate I‘! by screw bolts, one of which
is shown at IS. The base I! is held ?rmly in
place by the screws l3 which also act to clamp
blank is in swollen gel form, and the blank with
the lower ends of the strips of the member}!
the block in its mouth is put aside and allowed
to shrink, the function of the block being to keep 20 against it, and has extending through it an open
ing, the diameter of which is just slightly larger
the mouth open. Later the block is removed; the
thanv that of the circular blocks I00 which are
blank is expanded to the desired shape by means
pushed up'through it. These’ blocks have cir
of heat and pressure and frozen in its expanded
cular perforations 300 which are useful in the
shape; and ?nally a heel is placed in the blank,
subsequent removal of the blocks from the
and the blank is heated to cause it to shrink
the dry method, a block of circular outline is
placed in the mouth of the cover blank while the
While at the same time a partial vacuum is cre
ated in it so that the blank will conform exactly
to the shape of“ the heel.
According to the present invention a machine
is provided for inserting a block or similar ele
ment in a hollow article.
In the illustrated ma
chine a heel-cover ‘blank is placed with its
mouth or open end over the smaller end of a hol
mouths of the covers.
In order to support a
cover blank 20!] in the position shown in Fig. 3,
with the smaller end of the guiding member ex
tending into it, in which position it is placed by
the operator, a plurality of thin supporting ?n
gers 23 of spring steel are provided.
These sup
porting ?ngers have horizontal portions, upon
which the edge of the mouth of a cover blank
200 rests, and downwardly‘ extending portions
low, expansible, frusto-conical guiding member
‘which
are clamped in place by certain of the
35
through which the block is pushed into the
mouth of the blank.
This and other features of the invention, in
cluding certain details of construction and com
binations of parts, will be described as embodied
in an illustrated machine.
screws I3 which serve also to clamp in place
the lower ends of some of the strips which make
up the expansible block-guiding member 9.
In the operation of the machine, a block I00
40 is delivered from a stack into position below and
Referring now to the accompanying drawings,
Fig. 1 is a view principally in vertical longitudi
nal section of a machine for inserting blocks in
in register with the vertical opening in the mem
ber I I as shown in Fig. l. A cover blank 200 is
tions which they occupy before the plunger starts
tion and of slightly greater diameter than that
of the mouth of the cover blank, is pushed up.
placed upside down, as shown in Fig. 3, with the
edge of its open end or mouth resting upon the
hollow articles such as heel-cover blanks, the 45 horizontal portions of the supporting ?ngers 23;
parts of the machine being shown in the posi
and the block I00, which is circular in cross sec
its block-inserting ‘stroke.
Fig. 2 is a View similar to Fig. l of a portion of ‘
The upper edge of the block I00 encounters the
the machine,'the parts being shown in the posi 50 thin sloping strips which constitute the wall 'of
the frusto-conical guiding member 9 and spreads
tions which they occupy at the end of the block
them apart. The upper end of the guiding mem
ber opens and presently engages the inside of the
mouth of the cover 200, thereby centering it,
showing three positions occupied successively by
the block as it isjbeing forced through the ex- 551. stretching it somewhat and holding it while the
inserting stroke of the plunger.
‘
Figs. 3, 4 and 5 are'details in vertical section
2,296,964
block is pushed up through the position shown in
Figs. 4 and 5, in which the guiding member 9 is
approximately cylindrical, to the position shown
piston, indicated as a whole at 65, which is fas
tened to the piston rod 45, said piston com
prising the usual packing leathers held in place
in Fig. 2 in which the block and cover blank have
by nuts.
been pushed slightly above the level of the top 5
With this construction the rod 45, together
of the guiding member, said member having re
with the plunger 43 at its upper end, may be
sumed its normal frusto-conical shape. It will
reciprocated vertically. To this end, two ?exible
be noted by '_referring- to Figs. 3,54 and v5 that- the
pipes 61 and 69vfor compressed air connect re
expansible guiding member 9 ?rst engages the
spectively the upper and the lower ends of the
inside of the mouth of the blank and is ?nally.v 10 ..cylinder 5| with a valve mechanism ‘H of com
displaced, so to speak, by the block.
' mercial form, the details of construction of which
The mechanism for feeding 'theibl'ohks'aonevbwf form'mo :part'rof “the present invention. This
mechanism comprises a casing or container, to
vertical
one into opening
position below
in theand
base,
in register
member with'itli
II .will -
which compressed air is supplied continuously
now be described. The blocks'JUlll‘area'stackedal5_.ithrough“a ‘.pipe'
and suitable valves which
in a magazine which consists of 'a..phi-ralit"y? of." ; ~arescontrollédnbyma treadle ‘I’! normally held
upright rods 25 having their lower endssorewed
V ’ in‘raised'pos'ition as shown in Fig. 1 by a spring,
into the plate I‘! around a circular 'openiri'g~in1--‘
the Plate, said plate forming the top otametal W
not fshowny When'the treadle is in this raised
position», compressed air is ?owing up through
cabinet 26 which contains the operating mechl 20' the pipe 6'! to the top of the cylinder 51; the
anisml.» Bél‘ow?thee-platail‘Hand Lspao'ed fromii’it i
bottom‘. ‘of: ithe 5. cylinder.”
a distance slightly greateriithan-iitheldthickness1
throughatheupipes?a; rand athe rrod‘ 145wis: in: its"v
of -‘ a l-‘blo‘ckfii "' i-think ‘plate 1121 ?overfi-whiclri ith‘e
lowermost: iposi'tion; ‘ .whichi:is .lde'terminedx: by Ian"
‘being? exhausted
block'si'are Ipus dL through; a 'guidewayRofiWhich
the; plats;- z 17 germs- thé ibd??o'lm’u by; me‘- .fe'ed‘; rod ~-: 25: rounding‘. the :rod' at; the lower: end: of the: acylin-i
29, therefbeing astopmwae thfei rightehand end?‘
When the treadleiriscdepressed; iai'rv?ows‘
0f~»‘thef~gui'dewa$t~; 1‘ The‘- feed Todl'iséhorizont'ally;
slidablef n! a'Kbo're‘iSIginilaistationary‘ member!
cylindemE l a theriuplber end. fofgth’e-cylinder lbeingii
33‘Ifand?islcontinuallyz urgedflintol'its‘ fretractedi
7
exhaiisted’athroughi the 'pipei’?lc; and .thez-rodid?‘
(le'ftlhaiid) 2 position l'byl 1'a'-=te"nsion 1'spring~-3511(F~‘ig1f>30 i wit-Ho its plunger: 43: 'is moved- ; into‘; uppermost '
p'osition-i’aswshown‘ in'Fi'g'. '2, -.thei:uppe'r flill'lit’ of':
movement .eoff ‘the .rodjzibein'g determined: by an?
its-‘upper?:endifastenedi to :thefviright-hand "end 135i
abutment; :80 in ~ the‘rform of»- a 'isleeveicarried-z by- T1
thespiston 6'5; *
The'rfunctionxcofs‘the . upper ."cylinder '14 9 ‘:is: rto 1
control-the ‘?oww-of. compressed aim-through‘: the."
the: po‘siti'oni of 1 the-v'partsi shéwrt f-lniiFi'girl, '
compressed-l1 iair' ‘flowing through! "a /_=?e‘iribl'ei pipe :
pipe :4 Ir "to‘a'the: e I‘Od'i29' which’ tfeedsi-rtherPblooks
4t, incthe direction indicated by thel-arrow,-'holds:
I DUIvirOm: ‘the magazineyrand-cto :provide't anT'eX-i
haustiforethe=pipe at the proper :time; To'gthis:
strokes
is continuously ‘supplied; leads- ‘into i the cylinder;
The - ?ow! 50f: airi-l through‘ i this: pipe - is I
controlled-‘by thame'chahism‘forLpushing a block :
up rthr'o‘ug-hf-theii 'expansiblel -meinber ":9 "into " the ‘.
and'thew?ow'ofr compressed ‘air through/the pipe‘:
19¢irtoethe; pipeflllvis 'controlledzgbyr ar~valvew8li
heel-cover ‘blank ;' and- this latter! mechanism ‘will?v
whichsis. rslidableyv in ~ the ‘ cylinder‘ '49‘: and: is out >
new be?‘desoribedi
Formed iinwthe: thiniJhorie' 451? away rOl'l/"ilJS‘Z iperiphery' to form an ‘annular5 ‘pass '
zonta‘l- plate (21 iiirectlyr-bel'ow» the E'center ofsthe‘ =
sageway.»83r-which; in theeposition-'of-iparts'l'shoivn
guiding memberas ‘i'siéanir‘opening through? which“
inHFigt-i 1,~ connects the rpipe'f‘l 9- ~withe the“ pipe-
a pusheifririitheiéfdrm (of: a. ‘plunger '43=‘-ma'y' pass,‘
A compression spring~r85~"urgesc'thisi valve7
saidizplunger obeingzsplititand écla'mp'edi to? the 1
uppers endpof-ga piston) rods§45{:bys means-i of .-a :50 ‘ nectv theipipe-Hirom the ~pi-pee4l andvto'expose;
pinch screw 41?: Th'e'ipistonirod passes centrally"
throughztwo‘yertical'ly falinedi'cylindersi'ran upper '
cyli‘nder:i49:‘-and
lowerficylinder 5l§"-'said?cylin'- ‘
ders i:-beingi frigid8withii’feachl'f‘other? "and %with "a 1
anh-exhausteport "86" in‘ the-"wall of‘ the‘ cylinder:
said valve beings-held in its lowermost’ position}:
ads-‘shown. in-Fig:i1,-by-1thewplunger A3r'the- under"
side+of~which z-has engaged - ‘the: upper-fend. Of=~a -
supportingzn‘ember 53 twhi'e'h isususpended from :55‘? small "sleeve-81:, rwhich'r is @slid'able-iion: thecrod‘
45, and. through this sleeve has-pushed the valve
8 Ina-down.‘ Then compressed~nairnenterscfromt a
source rot-"supply-.th-rough-v a rpi-pe~. 89"and passes
through’ a fitting-(>9 I'- :having: ecormected :iwith-rit"
one'ibelofw'ithei:earzrof;thekmerrrbeiwiia_i.v Agpackerisge a pressure gage 93. Fromnthe~lower< end-pf “this
ingigland'f? 9‘tisiffa‘stened‘ id‘th?‘sup?dl‘tihgi mem #
?tting. .the ‘. air. . passes - through » a ~pipe~ 95 »to 1a
b61253? by:tl'1‘e usual bolts, not showni-vwhichipa'ss
through-vea'rsci also :notfishowms' ens-said‘? gland"
is connected -to one branch of._ the..T .while to.‘
and: arerithreaded (fiI’ItOfi the 2"member 753.? The '
H another. branch is connected the downwardly .ex- -
T “91.- The .lower. end»! ofuthemflexible"piper-19
loweryicylj?der'?lpjs-ijclampédz to-cthe‘eund'ensid-e': (35.; tending pipe'l5 which leads to .the controlmech
ofrthe=supporting:menrberc531iby‘a block‘ 6 Hand ‘
anism ‘ll.v Compressed air is thus supplied con‘
tie.x 'rod's: 'one- "of "which is 1 fshownirat‘ 13 3‘; Fa ; second '
tinuously to‘the pipes 75 and 19'. ' .
packingigland' 6 4"v being-‘provided :which "is‘ fas- -
tenedeitd?theribléck :6
It?wil-l :be'r'noted'that
‘Assuming that the partsv of the-machine are‘
in?tliei-positibhs shown
Fig.’ 1 and thata cover
ing :them supportingsm'ember P53, 1’ andvwi-th ‘ it-i Ithe '
?ngers" 23}? the‘ operation'iofftlie ima'chirie ‘is’ as
cylinders" i49"and~' 5 I r, up'ziand'rdown'g‘ the‘: purpose
follows.
The trea'dlei'lT isidepressed‘ ‘against its ‘
of.»='this eadjustmentwbeingetow-‘vary the relocation‘ spring‘;2.-‘whéreupon_ 1' compressed~v ‘air f?o'ws' - up
of =theyertic~al pathaofireciprocation of.<the!plung—'
through #thepip‘e '6 9' to ' the bottom of itli'eacylinde'r
H143,»- Located: r-in.~;the .-.‘lower~l~cylinderr. 5l'~i"isl~~a, 1.7535 band?’ the ‘top; of ri-the .“cylinde'r is exhausted-4
2,296,964
position of which depends upon the position ‘of
through the pipe 51.1 The rod 45 'and the
plunger 43 rise and force a block up'through
the plunger for controlling the supply of fluid
the positions shown in Figs. 3, 4 and 5 and ?nally
entirely out of the frusto-conical, expansible;
guiding member 9, as shown‘in Fig. 2. As the
‘plunger 43 rises, it permits the spring 85, to push
up the valve 8| thereby cutting off the supply
of compressed air from the pipe 19 to the pipe
4| and. putting the pipe 4| into communication
with the exhaust port -86 in the wall of the cyl
inder 49, whereupon the tension spring 35 pulls
to the feed member.
>
_
5. A machine for inserting blocks in the open
ends of hollow articles said machine having'in
combination, a hollow, expansible guiding mem
ber through which a block may pass, said guid
ing member being adapted ‘to extend into the
open end of a hollow article, a plunger for forcing
blocks through the guiding member into the hol
low article, a piston connected with the plunger,
a cylinder in which the piston is located, a maga
zine for a stack of blocks, a member for feeding
the blocks successively into position to be en
gaged by the plunger, a spring for moving the
15
Fig. 2. The operator removes the cover 200 with
feed member in one direction, a source of ?uid
the block I00 inserted in its mouth and releases
under pressure, a pipe for conducting ?uid into
the treadle. Whereupon the rod 45 and plunger
position to move the feeding member in the other
43 descend, and the feed rod 29 moves to the
direction, means for conducting ?uid under pres
right, the parts being again in positions shown
sure alternately to the top and to the bottom of
in Fig. 1 ready for another cycle of operation.
the cylinder to reciprocate the piston, and a valve
Although the invention has been set forth as
the position of which depends upon the position
embodied in a particular machine, it should be
of the piston for controlling the flow of com
understood that the invention is not limited in
pressed ?uid through said pipe to the feed
the scope of its application to the particular ma
member.
'
chine which has been shown and described.
6. A machine for inserting blocks in the open
Having thus described my invention, what I
ends of hollow articles, said machine having in
claim as new and desire to secure by Letters Pat
the feed rod 29 to the left, and the lowermost
block I00 in the magazine descends upon the
plate I‘! in front of the feed rod 29, as shown in
ent of the United States is:
r
combination, an expansible guiding member
through which a block may pass, two cylinders
1. A machine for inserting blocks in the open.
alined with each other and with the passageway
30
ends of hollow articles said machine having in
through the guiding member, a plunger for forc
combination, a guiding member, a plunger for
ing blocks through said passageway, a rod on
forcing blocks through the guiding member into
which the plunger is supported, a piston fast
the hollow article, a magazine for a stack of
to the rod and located in one of the cylinders,
blocks, means for feeding blocks into the path of
a magazine for a stack of blocks, a member for
movement of the plunger, and means for operat
feeding blocks one by one into the path of move
ing the block-feeding means and the plunger in
ment of the plunger, means for reciprocating
timed relation.
the piston, ?uid-operated means for moving the
2. A machine for inserting blocks in the open
feed member, and a valve in the other cylinder,
ends of hollow articles said machine having in
position of which depends upon the position
combination, a hollow, expansible guiding mem ~10 the
of the piston for controlling the operation of the
ber through which a block may pass, said guid
feed member.
ing member being adapted to extend into the
open end of a hollow article, means for forcing
a block through the guiding member into the
hollow article, a magazine for a stack of blocks,
and means for feeding blocks successively from
the magazine into position to be engaged by the
means for forcing the blocks through the guide
member.
3. A machine for inserting blocks in the open
ends of hollow articles said machine having in
combination, a hollow, expansible guiding mem
ber through which a block may pass, said guid
ing member being adapted to extend into the
open end of a hollow article, means for forcing '
a block through the guiding member into the
hollow article, a magazine for a stack of blocks,
means for feeding blocks successively from the
magazine into position to be engaged by the
means for forcing the blocks through the guide
member, a source of ?uid under pressure, and
connections, including manually controlled valve
mechanism, from said source to said block-feed
ing and block-forcing means for e?'ecting oper
ation of both said means.
4. A machine for inserting blocks in the open
'7. A machine for inserting blocks in the open
ends of hollow articles, said machine having in
combination, an expansible guiding member
through which a block may pass, two cylinders
alined with each other and with the passageway
through the guiding member, a plunger for forc
ing blocks through said passageway, a rod on
which the plunger is supported, a piston fast to
the rod and located in one of the cylinders, a
magazine for a stack of blocks, a member for
feeding blocks one by one into the path of move
ment of the plunger, means for reciprocating
the piston, ?uid-operated means for moving the
feed member,» and a valve in the other cylinder,
the position of which depends upon the position
of the piston for controlling the operation of, the
feed member, the cylinders being mounted for
adjustment in the direction of extent of their
axis to vary the location of the path of recipro
cation of the plunger.
8. A machine for inserting blocks in the open
ends of hollow articles said machine having in
combination, a hollow guiding member, a plunger
for forcing blocks through said guiding member,
means for reciprocating the plunger, and means
end of hollow articles said machine having in
whereby the location of the path of reciprocation
combination, a guiding member, a plunger for
of the plunger may be varied.
forcing blocks through the guiding member into 70
9. A machine for stretching the mouth of a
the hollow article, ?uid-operated means for mov
ing the plunger, a magazine for a stack of blocks,
a member for feeding blocks into the path of
movement of the plunger, ?uid-operated means
for moving the feed member, and a valve the 75
thin-walled hollow article of stretchable mate
rial and inserting in said mouth a block the
cross-section of which is larger than that of said
mouth, said machine having in combination a
hollow, 'expansible, block-guiding and mouth
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