US2368571A - Cutting device - Google Patents

Description

Jan. 30, 1945. 1 sABo 2,368,571

CUTTING DEVICE Filed Nov; 28, 1941 INVENTOR Q-'g 4 54 P6 [.0 s Sa@ 54 I 45 l ATrORNEY.

Patented Jan. 30, 1945 y UNITED STATESPATENT OFFICE CUTTING DEVICE `Louis Sabo, Astoria, N. Y., assigner to Herman B. Delman, New York, N. Y.

. Application NovemberA 28, 1941, Serial No. 420,837

' 1o claims. l(c1.` 12-1'7)` This invention relates to cutting devices, and more particularly to cutters adapted to form a heel-breast flap from a portion of the sole of a shoe.

Oney of the principal objects of the invention is to provide a cutter which may be adjusted to form a cut contour of varying width, according to the `adjustment of the device. l y l Another object is to provide such a device which may be positively adjusted to a selected predetermined width.

Another Objectis to provide means by which such a cutter is easily inserted and removed in a support therefor, for assembly with mechanism for operating the same.

Another object is to provide such a cutter with Aa resilient pad extending to the cutting edges thereof, and which bears upon a nap being operated upon.

Another object is to provide means by which said cutter is adjusted equally from the central line thereof. 'Further objects and advantages of the inven tion will be in part set forthin'the following specification, and in part will be obvious to those skilled in the art to which the invention relates, Without being speci'cally pointed out.

`With the above and other objects of the invention in View, the invention consists in the novel construction, arrangement and combination of various deviceskelements and parts, as set forth inthe claims hereof, certain embodiments of the same being illustrated in theaccompanying drawing and described in this specification.

lIn the said drawings,

Fig. 1 is a front view, partly in section, of

one embodiment ofmy invention;

Fig. 2 is an inverted plan view of the same;

Fig. 3 is a view, partly in section, of a modi cation of the invention; and

Fig. 4 is a. fragmentary sectional View, taken along the line 44 of Fig. 3.

Referring rst to Figs. l and 2, I0 indicates a i In the plate I4, is mounted a, divided plate, comprising sections I5 and I5, the outer edges of which are supported in channelsll Aand I8 in the plate I4, resting upon-shoulders I9 and 20. Springs 2I `and 22 are positioned in laterally extending bores inthe plate sections I5 and I6,

bridging lthe line of division between the same and exerting an outward thrust,-urging the sections Vto separate as far as possible. The ksprings 2| and 22 are spaced forwardly and vbackwardly ofthe transverse'central line ofthe cutter, and therefore also serve to hold the parts in alignment.

To the lower surface of the plate sections I5 and I6, are secured the two sections ofthe cutter proper, designated 23 and 24. In the embodi` A screw 25 passes thru a screw-threaded bore in the plate I 4', its inner'end bearing against the right-hand plate section I6, and its outer end having Xed thereon a knurled' head 23; rotation vof this screw 25` in one direction permits the plate sections I5 and I6 and consequently the cutter sections 23 and 24', to separate to the full extentV permitted by the conformation of the plate I4, and rotation in the opposite direction causes the right-hand sections I6 and 24 to approach to, and, if such rotation is continued,

to abut, the left-hand sections I5 and 23, against the force of the springsr 2l and 22. In `orderto insure a predetermined effective cutting width of the adjusted cutter, `a graduated collar 21 is formed upon the inner end of the head 26,4to indicate the amount of turn necessary for a particular Vwidth of heel-breast flap. A pointer cooperating with the graduations-.may be pro, l

vided if desired, not shown inthe drawing'.

Bythis means, ya, heel-breast flap may be formed which` will accurately fit different widths of heels, even though the difference be slight.

The cutter sections 23 and 24 are each provided with a pad 28, of sponge rubber or other suitable yielding and resilient material. pads substantially` fill the interior cavity of each cutter section, extending close tothe cut-r ting edges land to the central dividing line, and; 'the lower surfaces of thepads lying substantially These ush with the line of the cutting edges. The heel ap or other material to be cut, being positioned j and supported in place for `the forming operation, l will lie vunder the cutter and upon a platen or l other co-acting means, not shown. On thedownward stroke of the cutter, the pads 28A will smooth the material to be cut, insuring that the cutting edges will form the correct 'contour intended, .Without-.h distortion duel4 to.- bulging,

Wrinkling for other di'splacemeni? ofthe 'ap upon its support. resiliency o'f the pads 28 will `bear downward Upon the rising of the cutter, the

upon the material until the cutting .edge is clear of the same, thus obviating any rising orftlfie't material with the cutter and'.aresultingenecessity of manually disengaging it therefrom;

In Figs. 3 and 4, I have shown avmodied form` of construction, in which theadjustrnent-fof the*` plate and cutter sections is equal on each-sideof the central line between the sections. In a ma` tionedfwitli regardftoagivenlih i."

tisfresuu, 'the adjustrenft.'is madeiby vfright fand left' screw=threadedsections.z Inzthesefznguresgsu: g

indicates Va f portion ofi the press; partly broken .g

` aratt'ach'ed cutter section'ss43 and 44; provided:`

1 witlpads'` 45,'*fa1l of .which are :in generalsimilar to the corresponding parts above described, ex-r 35'f'and .36, being :UeshapedA at .the-sidesofthe plate' '34 and vinYthe-se'ctions -35 and `36,` and :ex-

` tendingfthru the central portion` ofthe .platef3ll.I

` Intliis 'U-shaped-'channeL the sections of. whichA s aredesignatedJll',` 505I and- 52;Y lies the adjust- 1 ingdevice, comprising a shaft 41; uponwhich are rightandleft screW-'threadedsections 53-and 54,.:

whichr-liefin the enlarged:l central -portion 4oi'- Athe channel f 50g-5 .The semi-cylindricallower sur- 1.face of thisY channel 5l l-5|-is screw-threaded,Y right and-left, to .be engaged-by saidgsections 53 and .54.. A knurledhead- 55 having` a graduated'l collar A516, is ii'ed to the shaft 4'Ifby. aset screwr 59.=,Collars-.5'l and58, surroundingthe shaft, lie

inl recesses in the plate 34 formed to prevent upv ward movement thereoftliereby. holding AYthe ad- A frthin connection with the above *description of of thechannel." j

In this form lof the invention; it'will be' obvious" just-,ing member in engagement with the bottoni.v

devices of other kinds and for other purposes than the heel-breast cutting means shown and described. Other changes willwoccur to those skilled in the art.

Having thus described my invention, I claim: 1. A cutting device for removable attachment as a unit to operating means therefor and adapted to form sheet material into predetermined similar contours oil varying. predetermined widths, comprising in `combinati(i'nlfa: supporting plate for attachment to a plunger or the like for loperating said device, said plate having a pair of inwardly and downwardly inclined shoulders, a

secondfsupporting plate having a pair vof upwardly andloutwardly -inclined `shoulders removably y vslidably.engaging with the shoulders of said irst 30 just the 'width of the contour/,cutby said-divided cutter. f

that lrotation ofthe knurled head will adjust the cutter' in width, but always equidistantlyfromthe l central line between the sections.`

The operation of the" inventionhas' .been set the' construction; Y i

The'l advantages ofthein'ventionwill also'be ofco'nstructionI and C operationwhich have "been described 5in the :above specification' or illustrated in the'accom'panying-drawing; as 7it is' obvious v t that-variousmodifications'maybe made,` within i tliscope of the 'claims hereoffwithout departingfinthe spirit and scope of the invention.

l. Itis 'obvious,'-for'instance, thatthe resilient pad-1* theadjustable vmeans'mayfbeapplied-.to forming..i75;-;of said platelsections; aftrotatable'v'screwj,passingsif may? 'be f'iutilized-on all noniadjustable cutter,.:1 asr well-'asfuponfthev device here shown, and alsothat supporting plate, and having also a recess in its `undeiiportionLlandichannels located laterally of 2. The. construction. de'finedxin; dans.. 1, to. gether Awith indicating: means voncsaid screwi'oinp accurately predetermining. Ithe extent-oigsaid `rel--.v

ativesliding.rnovement.-l n. 3.#The construction deiinedgintclaimu 1, to gether with saidl cutter-supporting .sectionsbeingn slidably removable from said secondQplaterh y l Y 4.- A .cutter adaptedto form heel-breast `iiap's forshoes', of similar contour'and.varying.prede termined sizes, comprising a plurality of Vsectionsk, each adaptedto form apart of saidcontour,

means slidably supporting voneiof said "sections forf movement toward and away from the 0ther,'"a"

screw mounted to movesaid sliding secticn'to Ward the other section when/ rotated in 'onedi' rection and to permit said slidngsectionto move" away fr om said other.. section whenfsaid screw' is rotated in the opposite direction, each offsaid'sec-` tionslhaving a plurality, of bores extending lati erally4v thereinto fromV its A`edge adjacent the other section,` the bores in 'one section registering res;

spectively with the bores Vinthe other sectionto 'j' provide a pluralityof composite'sockets," one of"V` said composite sockets being locatediorwardlyf of said screw and. anotherbein'g flocatdtreatwardly thereoiand aspring'positioned in eachof l said composite sockets' andbridgin'gthelirie oft separation of said sections and'urging'said `,sectionsapart,` l j 5. A cutting devicefor'removableattachmentf as a'unit to operating-'means'therfr and adapted to form sheet material'into'predetermined similar' rcontours ofi varying..T predetermined tachment offsaid iplate to saidoperati'ngdevicei.- and" on Y. the other fside" Iwith'll afre'cess; ya" pairmof- .iiat 'plate sections f slidably. retained lin saidzfrecess-r an'di'supported by. `saidf supportin'gvplate; said natifv plate sections 1 being adjustable lwith'frelation? to?? each .other by slidingmovernent lin:isai-dfrecessi.:y

a Cutting fedgefprovided ontheiotherfsidep'f eaoht:

through aportion of said supporting plate and operating to control said relative sliding movement of said plate sections to adjust the width of the contour cut by said cutting edges.

6. The construction defined in claim 5, together with a resilientl pad mounted upon each of said sections adjacent the inside of said cutting edge and adapted to bear upon said flaps' directly prior to, during, and directly after, the cutting operation.

7. A cutting device for removable attachment as a unit to operating means therefor and adapted to cut sheet material into predetermined similar contours of varying predetermined widths, comprising in combination a supporting plate for attachment to said operating device and having a flat supporting surface, a pair of flat plate sections slidably supported by said supporting plate and each having on one side a cutter section and onthe opposite side a at surface en-` gaging the flat supporting surface of said 'supporting plate, said plate sections being adjustable with relation to each other by sliding movement on said supporting surface, aligned openings in said plate sections, spring means in said l 4 whereby said sections are supported by said second plate and adjustable with relation to eachl tions slidably supported by said supporting plate,

a cutter section mounted on each of said sections, said supporting plate and plate sections having aligned slot portions of which at least one is provided with a threaded surface, a shaft lying in the composite slot formed by said slot portions and having screw threads engaging said threaded surface, and means for rotating said `shaft to eiectrelative sliding movement of said plate sections to adjust the width of the contour cut by said cutter sections. f

9. A cutter adapted to form heel-breast flaps for shoes, of similar contour and varying prede- 1 termined sizes, comprising .a plurality of sections each adapted to form a part of said contour, .f

means slidably supporting one of said sectionsfor movement toward and away from the other, resilient means urging said sections apart, a screw mounted to move said sliding section toward the other Section when rotated in one direction and to permit said sections to be `separated when rotated in the opposite direction, and indicating means associated with said screw for accurately determining the extent of said movement.

10. A cutting device for removable attachment as a unit to operating-means therefor and adapted to form sheet material into predetermined similar contours of varying predetermined widths, comprising in combination a supporting plate for attachment to a plunger or the like for operating said device, said plate having a pair of inwardly and downwardly inclined shoulders, a second supporting plate having a pair of upwardly and outwardly inclined shoulders removably slidably engaging with the shoulders of said first supporting plate, and having also a recess in its under portion and channelslocated laterally of said recess, a pair of cutter-supporting sections mounted in said recess and each having v a lateral shoulder lying in one of said channels,

other byv slidable movement of one of said sections toward or away from the other section, each of said sections carrying upon its under side one part of a divided cutter, resille-:nt means urging said sections apart, and a screw acting uponv one l of said sections to move the same towardthe other section when rotated in one direction and to permit said resilient means to cause said sections to separate to a predetermined distance when rotated in the opposite direction. y v y LOUIS SABO,

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