US1707760A - Machine for building randed heels - Google Patents

Description

E.' HANSALPAKAR MACHINE FOR BUILDING RANDED HEELS Aiaril 2, 1929.

Filed June 12, 1925 4 Sheets-Sheet l April 2, 1929. E. HANSALPAKAR MACHINE FOR BUILDING RANDED HEELS 4 Sheets-Sheet 2 Filed June 12 1925 m 4 d .M. O

E. HANSALPAKAR MACHINE FOR BUILDING HANDED HEELS April 2, 1929.

4 Sheets-Sheet Filed June 12, 1925 April 2, 1929. E. HANSALPAKAR 1,707,760

MACHINE FOR BUILDING RANDED HEELS Filed June 12, 1925 I 4 Sheets-Sheet 4 w Mw Patented Apr. 2, 1929.

UNITED STATES I 1 v 1,707,76t

EDWIN HANSALPAKAIR, or nnocxwoiv, nassacnnsms, mimosa 'ro HEEL COMPANY, me, or 011mm, MASSACHUSETTS, A. Won or mas- CHUSETTS.

MACHINE FOR BUILDING RANDED HEELS.

Application filed June 12, 1925. serial m. 86,665.

This invention relates to machines of the general type illustrated in my prior Patent No. 1,534,313, dated April 21, 1925, such machines being provided with a mold in which lifts are placed to form heels, and with a presser organized to operate to force successive assemblages of adhesively coated lifts and intermediate separators, through such mold and into a chute wherein such assemblages of lifts are allowed to remain until the adhesive has sufliciently dried.

The purpose of this invention is to enable heels provided with rands to be built accord.- ing to the method carried out with the aid l5 of such machines, and to provide machines of this type with means enabling rands to be applied and united to the heel bodies at the same time that the lifts are assembled and pressed together to form such heel bodies, and to provide also means for trimming the excess stock from the ends of the rand strips at the same time that the lifts and rands are put undercompressing pressure. Further objects are concerned with improvements in the structural features of machines of this type or character, as will appear from the following detailed description, of the preferred form of my improved machine. The invention consists in means for accomplishing the above named objects, in combination with the essential structural and operating parts of a machine of the general type referred to, and in the method of producing heels which is performed or carried out with the aid of such means. It further embraces the novel structural and operative characteristics, in detail and in combination, embodied in the machine herein illustrated and in equivalent machines and structures. I

Referring to the drawings provided herewith, 1

Fig. 1 is a side elevation of a preferred form of heel building machine containing 45 and embodying the mechanical improvements involved in this invention.

Fig. 2 is a sectional detail view of the driving pulley and clutch. with associated. control means, by which the movements of 59 the machine are effected;

Fig. 3 is a front elevation of the machine shown in Fig. 1;

Fig. 4 is a cross section taken on the line 44 of Fig. 1;

Fig. 5 is afragmentary detail of the eccentric and eccentric rod by which the presser element of the machine is actuated;

s Fig. 6 is a plan view of the entire ma: chine;

Figs. 7 and 8 are detail views showing" 0 the latch for the control arm or treadle in different positions;

Fig. 9 is a fragmentary perspective View showing a part of the movable presser carrying head; i

Fig. 10 is a perspective View of the presses element and of its cutter-holding clamp detached therefrom Fi n 11 is a perspective view of the mold in which the lifts and rand are assembled and confined in the operation of building 1 a heel; I

Fig. 12 is a perspective view of a heel provided with a rand and built according to the method and by the aid. of a machine embodying this invention.

Like reference characters designate the same paits wherever they occur in all the figures.

The frame of the machine comprises a base 15, and a column 16. On the column is 8 table 17 containing a mold or die 18, tshown; in detail in Fig. 11,-) in which collections of lifts, alternating with separators, are placed to form heels. Said mold or die is prefer ably made in two parts, 18 and 18', which, being placed together, as shown in Fig. r1, provide a passageway or cavity conforming in cross section to the shape and the dimensions of the heels to be made. Said members of the mold have flanges 19, which rest on the table, and preferably lie in a shallow recess in the upper side thereof, while the main portions of the mold extend thro an opening in the table. Lugs 20-20 6), attached to the top ofthe table at e side of the mold, overlap said flanges 19 and prevent lifting of the mold, while a trans verse'bar 21 secured across the front of the table closes the flange-receiving cavity on facilitates placement by the operator of heel lifts and rands therein, and causes them to be alined when by the presser.

H A plate is detachably secured upon the flanges 19 at that side of the mold which conforms to the breast of the heel, and the edge 26 of such plate forms thebrcast edge I a shear blade.

of the entrance to the mold. Said edge 26 1s inade suiiiciently sharp to cut leather, and

other rand material, in cooperation with a. cuttino' edge on the presser, as prcsently' described, whereby to trim off the ends of tne'rand strip flush with the breast of the heel being made. The plate 25 1s thereiore Ihave also provided, below and in extension of the mold, a chute formed by bars 2727 and 2828, into which the heels pass from the mold and in which they are frictionally supported and remain while ad 30 hesive used for coating the lifts is drying. The bars formin such chute are formed 4:: 7 arranged, supported and ad usted substantially as descr1bed n my aforesaid ial'ent Nox1,5s4,313 and, as the present invention involves no novelty in this part of here-used, description in detail of this part "of the machine is unnecessary; It is sullicient'for the purposes of my present invention that collections offlifts and rands are assembled in amold and a reforced through the mold by pressure applied from time to time on the topmost one of the constantly augmented pile of heels, and that the heels are confined and supported under pressure in such mold, or in an extension chute, for a long enough time to become so firmly joined together that they maybe afterwards handled as units.

Inthefrear part ofthe column lfiis a guideway 292l, in which is mounted a slide or head 30, (Figs. 1, 3 and l), carrying a presser 31. v H

Said. presser is shown in detail in Fig. 10. It depends from a bracket 32 which projects fromtheforward side of the sliding head and includes a plate overlying th top of the sliding head and secured thereto, such plate being a means for detachably connecting the bracket to the head. The presser 31 conforms in outline.approximately to the moldcavity'and on its breast end carries a shearblade 34 complemental to the blade 25;

The blade 34 is fitted into a recess in the breast side of the presser, wherein it is posipressed down into the cavity the ma 'chine, but any character of chute may be the shear blade, and a notch 40, to receive the. pin 35.

I have provided means for insuring accurate matching and co-action of the shear blades 25 and 3% For this purpose the bar 21, which lies across the front of the mold, carries screwsdl which are adapted to crowd the mold against the rear side of the cavity in the table in which it is received, thus locating the blade 25 immovably ina definite position. And the presser is adjustable in a front to rear direction on the bracket 32, having a rib 42 (Fig. 10), which is confined in a groove 43 in the bracket (Fig. 9), whileaclamping screw passes through a slot 45 in the bracket and into a tapped hole ll) in the presser block.

The presser carrying head 30 has a wrist pin 47, by which it is coupled to a connecting rod 48, and the connecting rod is alsocoupled, by means of a strap 49, with an eccentric or crank pin 50 on a shaft 51, mounted in suitable hearings in the lower part of the column. A worm wheel 52 on one end of the shaft imparts rotation thereto, being driven. by a worm 53 on a counter shaft 5 which rotates in bearings suitably arranged on the side of the column 16 and on the top of a post 55, which rises from the base. The shaft 5% is driven by a belt pulley 56 by means of a clutch and under control of a stopping and starting mechanism later described. V V p The mechanisnrjust described moves the presser up and downin line with the mold cavity and with a range of movement wide enough to cause it to enter the mouth of such cavity, carrying its shear blade 34 sli htly past the edge 26 of the complemental shear plate 25, when in its lowermost position, and to raise it so far clear of the mold that the operator may assemble the lifts therein without interference. The guideway 29-29 of course determines the path in which'the presser thus moves, and such guideway is preferably parallel with the passageway through the mold and chute. However, it is not essential that these incur hers should be exactly, or even approximately, parallel provided only the presser moves nearly enough in'the same. general direction as the mold passage to force the assembled collections of heel lifts therethrough, and that it travels in a path which will effect cooperation between the shear blades25 and 3d. V

The machine is started by the operator the base.

arranged sleeve 62, in which there is an adjustable threaded rod or bolt 63 arranged to bear against a stud 64 projecting from the center of the pulley. Arm 59 and rod 63 thus form a bell crank lever adapted to force the pulley'into contact with the clutch cone when the treadle is depressed. A cam 65 is also secured to the rock shaft 60 and bears on a pivoted rock arm 66 connected with a brake lever 67 by a connecting rod 68. The brake lever is provided with a friction pad 69' arranged to bear on the face of the clutch cone, and is pressed toward the cone by a spring 70 confined in a guide 71 on the post 55, which spring acts through a plunger 72 and reacts against an adjustable abutment 73, which is screwed into the guide 71. The connecting rod 68 is made in two parts, one of which parts is a pin' or stud 74 threaded into the rock arm 66 and consequently adjustable to insure separation of the brake pad or shoe from the clutch cone when the treadle .is depressed. lVhen the treadle is released, a spring 7 5, connected and arranged preferably as clearly shown in Fig. 1, raises the control arm and allows the pulley to be withdrawn from the clutch cone and the brake to be applied at the same time.

A latch lever, having two arms 7 6 and 7 7, is pivoted to a bracket 78 on the column 16, and the lower end of its arm 76 lies beside the control arm 59, while its upper arm77 is drawn'toward the column by a spring 79. Arm 77 is also provided with a cam or wiper surface 80, inclined to the direction in which 7 the sliding head 30 travels, and arranged to beengaged by a projection 81, projecting from the side of the sliding head 30. When the control arm is depressed to clutch the driving pulley to the shaft 54, it is carried below the end of latch arm 76,and then immediately after the prcsser begins to descend, the receding cam surface 80'allows the latch toslip over the control arm, as shown in Fig. 7. \Vhcn the presser returns to the upper limit of its travel, the projection 81, forcing the cam surface 80 outwardly, disengages the latch from the control arm and permits the pulley to be unclutched and the brake to be applied to the driveshaft; In principle, the stop and start mechanism just described is equivalent to that disclosed in my aforesaid- Patent 1% 1,534,313, and is claimed in said patent. The novelty in the present mechanism is embraced particularly in an improved brake having capacity for adjustment and being more readily accessible.

The principal new result accomplished by the invention is the building of heels equipped with rands; and a further important and valuable result consists in trimming the ends of the rand strip flush with the breast of the heel, all in one operation with the building action.

A heel of the sort produced with the aid of this machine is shown in Fig. 12. It is made up of any desired number of lifts a and a rand b. The lifts'may all be whole lifts, or one or more of them maybe pieced lifts, and they may be assembled in any desired number, depending on the height of heel to be made. The process of building them is as follows:

A sufficient number of lifts to make a heel I of the required height, size and style, are taken from appropriate, conveniently arranged, compartments by V the operator, coated with adhesive, and'pl'aced in a pile within the flaring mouth of .the mold. A strip of rand material is then placed on the topmost lift of the pile. It may be first coated with adhesive, or the adhesive already on the topmost lift may be relied on to bind it to the heel. Such rand strip is a strip of leather, or suitable leather'substitute, wedgeshaped in cross section, which is as long as the circuit of the heel, except thebreast edge. Preferably the strips used are a little longer than this in order to insure that the ends of the rand will come quite upto the breast of the heel. The rand strip is bent by the operator in being laid on the topmost lift of the heel, and is so placed that both ends project from the breast, substantially as shown in dotted lines in F ig. 12. A separator repellent to adhesive is finally placed over the topmost lift and therand thereon, and the presser is made to descend. tin thus descending, the presser forces the assemble e of lifts, with the rand thereon, into the m d and at the same time trims off the projecting ends of the rand. It also causes heels previously placed in the mold tobe moved one step farther down the chute and ejects the ice one another, and enable the individual heels tobe separated readily-when they emerge side of the neXt adjacent heel.

from the chute, Such separators may be sheets of paper impregnated with paraffin, or otherwise made repellent or non-adhesive to the paste or cement with which the lifts are coated, or they may be shaped rigid blocks or plates convex on one side in conformity withthe depression within the rand, and flat on the other side to match the under Such plates or blocks may be of any material sufficiently strong to sustain the pressure applied, and

adhesive, whether such quality is an inherent characteristic of the material or is imparted by impregnation or coating with suitable substances. lVhile the separator blocks conformin on one side to the concave side of the ran ded heel may be preferred, from some points of View, they are not essential, for satisfactory results may be obtained in making randed heels with the use of thin and flexibleseparators such as those made of paralfined paper. 7 V

By thus building heels with rands in the 1 first instance, a large saving in the time and cost of producing heels ready for attachment to shoes is effected, for the operation of applying and fitting a rand to an already built heel blank, or to a compressed heel, is

, avoided; while the step of applying a rand to the heel blank,'and trimming the rand in the course of building a heel, according to this invention, involves substantially the same, and no more, time and care on the part of the operator as the placing of a lift in the mold, and is a much less particularand less expensive step than that of fitting a rand to a previously built heel.

In this specification and in the following claims, the term mold isto be understood as including generically any space having limiting bounds within which heel lifts, 01' the like, and rands may be placed and confined, in substantial accordance with the principles of this invention.

What I claim and desire to secure by Letters Patent is:

1. A heel building machine comprising a mold having the outline of a heel; a shear blade bounding the mouth of said mold at the breast side thereof, and a presser formed to enter said mouth and having a cutting edge complement-a1 to and cooperative with said shear blade.

2. A heel buildingnachine comprising a mold adapted to. embrace and make frictional contact with the edges of heel lifts, said mold having at its mouth a cutting edge, and a presser constructed, aranged and operable to force assemblages of heel parts into said mold, and. having an edge complemental to the aforesaid edge and adapted to cooperate therewith as a shear.

3. Aheel building machinehaving a mold open at one end for the reception of heel lifts in shape and dimensions conforming to the heels to be built, and having a cutting'edge at that side whichcorresponds to the breast of. the heel, and a presser adapted to enter said mold and bear on the heel lifts therein and having a shearing edge comple mental to the first named. edge.

4. A heel building machine comprising a supporting structure, a mold mounted on said supporting structure and. having a through passageway with the outline and dimensions of a' heel, a head mounted to reciprocate on said supporting structure in the same general direction as said passageway, and a presser car 'ied by said head and overhanging said mold, said presser being made with a form and dimensions enabling it to enter said mold,the mouth of said mold and said presser having. complemental shearing edges and being relatively adjustof the presser.

5. A heel building machine comprising a supporting structure, a heel receiving mold mounted on said structure and having a through passageway,'a shear blade forming one side of the mouth of said mold, a reciprocating head guided on said supportstructure and having a bracket overhanging said mold, a presser depending from said bracket adapted to enter the mold and formed with a cutting edge complemental to said shear blade, and means connecting said presser tosaid bracket constructed with provisions for-adjusting the presser transversely of said cutting edge into correct shearing relation therewith.

6. In a heel ,building machine of the character described, a heel receiving mold having a shearing edge at the'breast side of its mouth and having fiaring walls at other sides of its mouth, anda presser complemental to said moldand having a shear blade at its breast side complemental to the first named shear blade. 7

7. In a heel building machine of the character described, a movable head having a lateral bracket or arm, a heel presser deable transversely to the line of movement pending from said arm, said arm and presser,

having provisions for adjustment laterally, and the presser having a shearing edge extending in a direction transverse to the direction of said adjustment."

8. In a heel building machine of the character described, a presser,'and a blade detashably fitted to said presserand forming part of the pressing surface thereof, its outer edge being a shearing edge providing a part of the outline of the presser.

9. In a heel building machine of the character described, a presser, a blade detachably fitted to said presser and having a shearing edge providing a part of the out-.

line of the presser, a pin positioning said blade, and a clamp secured to the presser and overlapping said blade.

10. In a heel building machine of the character described, a mold having a cavity to receive heels, beveled 'members applied to the receiving end of said mold and forming a flaring mouth thereto, and a shear blade arranged to form a part of the bounding edge of said mouth.

11. In a heel building machine of the character described, semi-tubular members fitted to one another to form collectively a mold having a heel receiving passageway, said members having complemental keyways, and an aligning key fiting said keyways.

12. In a heel building machine of the character described, a table having an opening, a mold having a passage to receive heels adapted to enter said opening and having a flange adapted to rest on said table, and means connected with said table adapted to exert pressure on one side of said mold for locating and securing the mold in a given position. a

13. In a heel building machine of the character described, a supporting frame, a mold having a heel receiving passage, a sliding head mounted and guided on said frame to move reciprocatively in a fixed path extending in the same general direction as said passage, and a presser carried by said head overhanging the entrance to said passage and being formed and arranged to enter said passage upon movement of the head in one direction.

14.. Ina heel building machine of the character described, a supporting frame, a mold having a heel recelving passage, a sliding head mounted and guided on said frame to move reciprocatively in a fixed path extending in the same general direction as said passage, a presser carried by said head overhanging the entrance to said passage and being formed and arranged to enter said passage upon movement of the head in one direction, said mold at the entrance to its passage and the presser having complemental shearing cutters.

15. In a heel building machine of the character described, a supporting frame, a mold having a heel receivin passage, a sliding head mounted and guided on said frame to move reciprocatively in a fixed path extending in the same general direction as said passage, a presser carried by said head overhangin the entrance to said passage and being formed and arranged to enter said passage upon movement of the head in one direction, said mold at the entrance to its passage and the presser having complemen tal shearing cutters,-and being relatively adjustable transversely to the direction 7 of movement of the sliding head so as to place .said cutters in shearing relationship.

In testimony whereof I have affixed my signature.

EDWIN HANSALPAKAR.

Images