US1662259A - Heel-seat-fitting machine - Google Patents

Description

G MACHINE E. A. VWLLXAMS Filed Jan. 15. 1926 HEEL SEAT FITTIN ik? w I March 13. 1928.

March 13, 1928. 1,662,259

E. A. WILLIAMS HEEL SEAT FITTING MACHINE Filed Jan. 13. 1926 Patented Mar. 13, 1928.Y

ERNEST A. WILLIAMS, or CINCINNATI, o

HIC, ASS-IGNQR TO UNITED SHO-E MACHIN- ERYCORPORATION, OF PATERSON, NEW'JERSEY, A CORPORATIGN 0F 'NEV JERSEY.

HEEL-SEAT-FITTING MACHINE.

Application liedanuary 13, 1926. Serial No. 80,948.

This .intention relates to stock-cutting machines and is illustrated herein as embodied in a heel-seat fitting machine arranged to skive surplus material from soles prior to their attachment to shoes.

In the manufacture of shoes to which Wood heels are to be attached it is usual to trim surplus stock from the heel-seat portionsof the soles of the shoes so as to reduce the area of the heel-seats and to provide the shoes with heel-seatsof a convex form correspond ing tothe concave or cupped attaching surfaces usually formed upon Wood heels. This heel-seat fitting operation for a long; time vwas performed by hand but of recent years it has been increasingly performed by heelseat fitting machines. Most of these machines have been organized to perform the heel-seat fitting `operation after the soles have been attached to the shoes and `this today is the more generally used method, irrespective ofuhether the operation is performed h v machine or by hand. However, Ithere has recently been a tendency on the part of some shoe manufacturers to perform the heel-seat fitting operati-on prior to the attachment of the soles to the shoes, this desire being based upon the possibility of reducing the manufacturing cost if the operation is perfori'ned in this Way.

lt is an object of the Vpresent invention to provide a heel-seat fitting machine capable of operating upon soles pri-or to their at# tachment to shoes which will perform the Vheel-seat fitting' operation with' sufficient accuracy to satisfy the demands of manufacturers of the better grades of shoes, Which can be operated at a low cost, and Which will demand only a minimum of skill upon the part of the operator.

In accordance with the foregoing the illustinted machine is provided With improved means arranged to deform the heel-seat portien of a sole'so` that its central portion lies on one side and its peripheral portion lies' on the. other side ofthe surface to Which the heel-seat is to be trimmed. Then, by relative n'ioven'ient of the deformed sole and a slnivihgv .knife or cutter the sole is trimmed and beveled. (looperating` with the ski'vzing knife or cutter is another knife arranged to make a pair of heel breast receiving cuts at the forward extremities of the trimming cut.

A feature yof .the yinvention comprises a heel-seat fitting machiner organization. for example such as has just been outlined, including a holddown member or .finger larranged to deform or to assist in d-eforming `the stock and located 'during the fitting operation between a porti-on of the stock and the skiving knife or cutter. As illustrated, the marginal portion of the heel-seat of the sole ,is engaged and supported by a plate or platesformed `with a substantially U- shaped opening. A spring-pressed plunger is located somewhat below this opening in posit-ion to engage the centralportion of the heel-scat as the sole is deformed and to pre-r vent excessive deformation. The -holddoivn member or finger is arranged tov clamp the work in opposition to 'the plunger and positively1 to hold its central portion out ofthe path of movement of the knife or cutter, this finger beingI carried by a support outof the path of movement ofthe knife or cutter. lilith the sole heldin this manner theknife or cuttermoves from the 'rear forward to the heel breast. lin, trinnningthe tivo-edges Lof the sole simult'afneously.l l f r` lVhile the invention is described y herein with particular reference to a heel-seat fit-L tinev machine arranged to operateupon the heel-seats of unattached soles, it should be understood that'it is not limited inits utility to such a machine.` In various of its laspects it is applicable to heel-seat fitting machines operating upon other than unattlached soles and to cutting` machines for operating upon other Work pieces.

l lVith the above and other objects and fea` tures in view, the invention vvilly nonT be de* scribed Withreference to the accompanying drawings and pointed out in the claims.

Inthe drawings, p

*Finn` lis a side elevation of a heel-seat fittingl machine embodying the present in'- vention arranged to operai e upon i'inattached soles; v y

Fig. 2 is a perspective view of the head the machine of Fig, 1 with 'parts broken `avvay better to show the construction;

ating Fig. 3 is a perspective view illus the manner in which the heel seatportien of a sole is deformed `'prior to trimmiiig operation in the Yniac'hine'of Figs. `l and 1 Fig. e is ya longitudinal section 'and F ig. 5 is a. transverse section illflst'r ating` the vtrimming operation 5 A'and f Fig. tl is a perspective view of the reai portion of a sole litted by the illustrated machine.

The illustrated machine is provided with a column Ylll near the bottoni of which is journaled a power shaft l2 driven in any suitable manner, for example7 by a belt driven pulley 1l.. Upon the shaft 12 are a plurality of cams arranged to operate the various moving parts of the machine. Pulley 1l is connected to these rains by av single revolution clutch which it is not necessary to describe in detail since it forms no part ol the present invention, the clutch being controlled by a lreadle lli. ()n the upper end of the column lll is a head lo carrying a work support 2li, a horizontal slide .22 and an ap|n'o;iniately vertical, angula 'ly adjustable slide 2l. Mounted upon the slide .22 is a skiviug knil'e or cutter lo and a lever :2li fulcrumed at 2l) and carrying at its forward end a. presser roll Btl arranged to apply pressure to the work in front of the knife 2G and to move forward .so as to keep out of the way of the knife as the cut progresses. Carried also by the head 18 of the machine is a forwardly extending bracket or arm l2 having pivoted at Stat its for 'ard end a rearwardly extending bar 3G, the depressed rear end of which is formed as an elongated holddown linger 38 arranged to engage the upper surface of the heel-seat of a sole to be operated upon and by pressure applied to linger 38 through roller 30 to force the upper surface of the central part of the heelseat below the path of movement of knife iti. As illustrated, linger 3S has a llat upper surface for engagement with roller C30, a eonvex, work-engaging lower surface and a rounded end. To support the peripheral portion of the heel-scat of the sole and cooperating with linger 3S to deforin the sole, are a pair of plates et() shaped to provide a U-shaped opening beneath the heel'seat. These plates, as more fully shown in United States Letters Patent No. 1,307,285, lgranted June 1T, 1919, on an application tiled in the naines of Samuel J. lvientworth and Frederick H. Perry, are pivotally supported at the rear and may be swung toward or from each other under the control of a treadle, herein numbered 153, `front which they are operated through connections including a treadle rod all. Carried. by plates l0 are a pair of gage blocks t6 arranged to engage the edges of a, sole to be operated upon somewhat forward of the heel breast line and thereby to limit the movement of plates 40 toward each other as treadle l2 is released. These blocks are located a short distance from the edges of plates 40 in accordance with the amount it is intended to reduce the heel-seat portion of the sole. Further forward on plates et() are a pair of springpressed plungers 4 8 arranged similarly to engage the edges of the sole and yieldable to accommodate soles of dili'erent shapes. As illustrated, these two plungers together present a divergent opening to facilitate the in troduction of soles between them. "lhe lorward ends of plates lll rest upon the work support 20 which serves to support the ball portions of the soles operated upon and is formed with a surface 5l) underlying and supporting the ends of plates lll so as to permit horizontal movement of plates ell).

Beneath the U-shaped openingl formed in plates l0 is a spring-pressed plunger hav ing an enlarged head arranged yieldingly to support the cent-ral portion of the heelseat so as to prevent undue distribiuion o' the sole. As illustrated, plunger .3:3 housed in a sleeve 5G, the lower end of which is closed by an adjustable screw :35' .so that the resistance ol spring (ill to the depression of the plunger may be adjusted. A stop screw G2 is arranged to engage the under side of the head 5l of the plunger positively to limit its downward movement. Thus, it will be seen that the central portion of the heetsea-t which is located between linger ll and the head .51 of plunger fr. is Securely clamped as roll :lo moves down into engagement with linger JS and is held so clamped as roll 30 moves for `ard in lfi'ont of knife 2li during the trimming operation. As an added insurance against: .lisplacement oli the work under the action of the knife 2U linger 8S is provided on its under surface with a projection or spur (3l: (Figs. l1 and 5) arranged to be forced into the material of the heel at so as to give linger 3S a more positive grip theroui'ion.

To make a pair of heel breast; receivingeuts at the forward etatrcinities ol' the trininiing eut. l'or example as shown al (313 in Fig. li, the `machine is provided with an adjustable knife illustrated as comprising a pair olI adjustable blades (in` carried by .slide 2l adjustable and operable from one ol the rams upon .shalt l2 in the manner set forth in said linited ritatcs Letters: lalenl No. lJllTjl. ln order to prevent injury ol' kiiil`c-blade titl b v linger Zlil, the latter may be notched as shown ati 'T5 in 4llig. :2.

Mean.`A l'or adjusting plates Alll lforwardly and rcarwari'llv in accordance with the length to which the heel is to be trimmed may he provided as shown in said United States Lettersl Patent No. 1,307.255, this adjusting means being controlled by a ha nd lever (3S ha ving a spring plunger movable into engageY ment with any one of' a series ol` holes To formed in a bracket T2. Means for operatin;r slide 22 to cause the reciprocalion olf knife Eil'. and for operating ioll 3l) to more it down. thereby holding the central portion ol.' the worl: beneath the path of movement of knife QG until knife 2G reaches the work and for thereafter moving roll 30 forward while lll) tlf)

loo

lltl

` takencare of by neaaase still in its lowered position, may also be provided, just as described in sald United States Letters Patent No. 1,307,285, except, of course, that roll 30 engages the upper surface of finger 38 instead of bearing directly on the work. 1

To facilitate the lengthwise presentation of 4the soles to .be loperated upon, plates 40 are provided with a conspicuous mark, illustrated at in Figs. 2 and 3, positioned at right angles to the length of the soles to be operated upon and extending transversely across the path of movement of knife 26. It is only necessary then, in order properly to position the soles to present them with their rear ends in alinement with line 8O and with their shanks in engagement with gage blocks 46. Plungers 48 bearing upon opposite edges of the sole will prevent any angular derangement while, `at the same time, yielding to compensate for variations in the widths and shapes of the soles. As has been previously stated, variations in the lengths to which the heel-seats kare to be trimmed are adjustment of lever 68.

In the operation of the machine treadle 42 is depressed to spread plates 40 apart and the sole to be operated upon is placed upon plates 40 with its rea-r end in alinement with mark 8O and with its shank and forepart between gage-blocks 46 and plungers 48, respectively.V Treadle'42 is then released, whereupon plates 40 move together until blocks 46 engage the sole. Then, bar 36 and finger 38 are vdepressed so that finger 38engages the sole and the machine is started by stepping upon tread'le 16. This causes slide 22 to move forward and roll 30 carried by lever 28 to move down, thereby pressing finger 38 forcibly against the sole and deforming `the latter so that .finger '38 andthe upper surface of the central portion of the heel-seat are below the path of movement of knife 26 while the peripheral portion of the heel-seat is above the path of movement of the knife, being supported by plates 40. Knife 26 moves forward, trimming and beveling the periphery of the heel-seat, operating first upon the rear of the heel-seatl and then upon its ltwo .edges simultaneously, and when it has almost reached roll 30, the latter also moves forward holding finger r*38 out of the way of the knife. `-When knife 26 has reached the heel-breast line, it is .withdrawn as also is roll 30. Then knife 468 is reciprocated to make the heel-breast out and to sever the peripheral chip from the sole, leaving the heel-seat as shown in F ig. 6.

Having thus described my invention, what I claim as new and desire to secure 4by Letters Paten-t of the United :States is:

1. A stockfeutting machine having a-knife movable in a rectilinear path, and work-.de forming means varranged vpositively to hold different parts of the stock on opposite sides ydeformingl a w rk piece,-

of the path ofmovement of the knife, said deforming means including a hold-down member arranged during the` cutting operation to lie between the knife and a portion of the stock'.

2. A stock-cutting machine having,v in combination, a knife, stock-deforming means, means `for causing relative movementof the knife and the deforming means whereby the knife is caused to cut surplus material from ,the deformed stock, said stock-deforming means including a member positioned between the stock and the knife during the cutting operation positively to hold a portion ofthe stock away from the knife, and means travelling along` said member to hold said member out of the way of the knife. i

3; A stock-cutting machine having, in combination, a knife, stock-deforming means, means `for causing relative movement Y knife and the deforming means whereby the knife is caused to cut surplus material from kthe deformed stock, said stock-deforming means, including a ranged to assist in the'deformation of the stock and positioned between the stock and the knife during the cutting operation, and a roll arranged to move along theiinger in front of the knifethereby holding the finger out of the way of the knife. l

4. A skiving machine having a yielding work-engaging member, a holddown mem` ber arranged to clamp a work piece against said yielding member, a skiving` knife, and means for causing relative movement ofthe work piece thus held and the skiving knife to cause the knife to perform a skiving` operation upon the `work piece, memberbeing held stationary during the skiving operation between` the skiving knife and a portion ofthe work piece.

`5..A skiving machine having means for a skiving knife, means for causing relative movement of the work rpiece and the knife to cause the knife tok perform a `skiving operation `upon the work piece, said and a portion of the work piece, and means carried by said member arranged to be forced into the .material of the work piece to provide positive engagement of the holddown member with the Work piece. i

6. Af skiving machine having a vskiving knife, means for Causing relativemovement of the work piece and ythe knife yto cause the fkuife to perform a skiving operation upon the work piece. means for deforining the -work piece including a thin finger positioned during the skiving operation between the skiving knife and a portion of the work piece `to 'hold that portion ofthe work `piece from the knife, and a spur carried by said of the thin holddown finger arsaid `hol-ddown deforming meansincluding s a holddown member positionedduring the skiving operation between the skivingknife finger arranged to be forced into the material of the Work piece to provide a positive engagement of the finger with the Work piece.

7. A heel-seat fitting machine having means for supporting the edge of the heelseatportion of a sole, a knife, means for causing relative movement of the sole and the knife to cause the knife to trim surplus stock from the periphery of the heelseat of the sole, and a holddoivn member arranged to be held Istationary during the trimming operation between the knife and the central portion of the heel-seat of the sole and cooperating with the supporting means to deform the sole.

8. A heel-seat fitting machine having means 'for deforming the heelseat portion of a sole, a trimming knife having a cut ting edge arranged to operate simultaneously on both edges of the heel-seat of the sole. said deforming means including a holddoun member arranged to be positioned during substantially the entire trinnning uieration between the knife and the central portion of the heel-seat of the sole` and means for causing relative movement of the deformed sole and the knife in the direction of the length of t-he sole to cause the knife to trim surplus stock simultaneously from the tivo edges of the periphery of the heelseat of the sole.

f). A l1eelseat fitting machine having a u'ork support, a cutter arranged to trim surplus material from the peripheral portion of the heel-seat of a sole carried by the Work support, and a holddown member, stationary during the trimming operation, having a eolepenetrating portion formed and arranged to engage the heel-seat of a .sole operated upon securely to hold the sole against moven'ient as the trimming takes place.

10. A heel-seat fitting machine having a work support with an approximately U- shaped opening therein, arranged to engage one side of and to support the peripheral portion of the heel-seat of a sole, an elongated finger arranged to engage the opposite side of the heel-scat of the sole supported by said work support, means movable lengthwise of said iinger arranged to press the finger forcibly against the sole thus sup ported, and a cutter movable with said lastnamed means to trim surplus material from the periphery of the heel-seat of the sole.

11. heel-seat fitting machine having a n'ork support with an approximately U- shaped opening therein, arranged to engage one side of and support the peripheral portion of the heel-seat of a sole, an elongated finger arranged to engage the opposite side of the heel-seat of the sole supported by said work support, means movable lengthwise of said finger arranged to press the finger foreibly against the sole, and a knife movable with said last-named means in a path clearing the side of the finger away from the sole to trim surplus material from the periphery of the heel-seat of the sole.

12. A heel-seat fitting machine having means for engaging one side of and supporting the peripheral portion of the heel-seat of a sole, a finger engaging the opposite side of the central portion of the heel-seat of a sole thus supported, a knife movable lengthwise of the sole to trim surplus material from the periphery thereof, and means arranged to more in front of the knife and engaging the finger to force the finger against the .sole and out of the path of movement of the knife.

12B. A. heel-scat means for engaging one side of and supporting the peripheral portion of the heel-seat of a sole, a finger engaging the opposite side of the central portion of the heel-seat of a sole thus` supported, a knife movable lengthwise olf the sole to trim surplus material from the periphery thereof, and a roll movable in front ot the knife and engaging the linger to vforce the finger against the sole, betu'een the path of movement of the knife and the sole.

1.4. A heel-seat fitting machine having a work support with an approxin'iatcly U- shaped opening therein arranged to engage one side of and to support the peripheral portion of the heel-seat of a sole, a member arranged to engage the opposite side of the heel-seat of the sole supported by said wor r support. a spur carried by said member, means for forcing the member against the sole thereby causing the spur to penetrate, the sole so as to prevent lengthwise movement of the sole during the fitting operation, and a cutter arranged to trim surplus material from the periphery of the heel-seat of a sole thus held.

15. A heel-seat fitting machine having a work support with an approximately U- shaped opening therein arranged to engage one side of and to support the peripheral portion of the heelseat of a sole, a member arranged to engage the opposite side of the hecl-seat of the solo supported by said vl'ork support, a projection carried by said me1nber, a knife niovable lengthwise of the soleI to trim surplus material from the periphery of the heel-seat thereof, and means for foroing said member against the work thereby causing the projection to penetrate the sole so as to prevent lengthwise movement off the sole.

16. A heel-seat fitting machine having a cutter, means for causing relative movement of the cutter and asole to cause the cutter to trim surplus stock from the periphery of the heel-seat of the sole, a holddown member arranged to engage the central portion of the heelseat and to be positioned during the till) fitting machine having All lill) llt) trimming operation between the cutter and the central portion of the heel-seat of the soie, and a knife arranged to make a-heelbreast-receiving cut at the forward ends of the trimming` out.

17. A heel-seat fitting machine having means for trimming surplus material from` the periphery of the heel-seat of a sole, and an elongated holddown finger arranged to assist in the deformation of the sole operated upon, said finger having a convex to be ERNEST A. WILLIAMS.

I have signed my 15

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