US2516111A - Machine for pressing the bottoms of shoes - Google Patents

Description

July 25, 1950 A. EPPLER, JR

MACHINE EOR PRESSING THE BOTTOMS OF SHOES Filed Dec. 16, 1947 I 2 Sheets-Sheet l lnuenzoz A ndrew EpplergJn July 25, 1950 A. EPPLER, JR

MACHINE FOR PRESSING THE BOTTOMS OF SHOES Filed Dec. 16, 1947.

2 Sheets-Sheet 2 In venzoz Andrea; Epp/ez; Jr.

Patented July 25, 1950 I UNITED STATES osnci:

MACHINE son riniss'me ,THE BOTTOMS or SHOES Andrew 'Eppler, Jr., Lynn, Mass, assi'gnor to United Shoe Machinery Corporation, Flemington, N.- it, a corporation of NewJersey Application December 16, 194?, Serial'No. 792,026

iiclaims. (01. 12-427) This invention relates tomachines for applying jack for difierent sizes of shoes in'order tocom pressure to the bottoms of shoes, and more par pensate for difierentheights of -cones oi the lasts ticularlyto means-for supporting a shoe inthe so that the initial position of the cone support, Pressure-applying operation, the term shoe be when the shoe is placedon the jack, willnctbe ing generally used herein with reference .to a shoe excessively higher than that to which it" is cle mounted on a last. The invention is illustrated pressed'upon jacking'the shoe.

herein as applied to a machine for progressively Theabove and other features of the invention; leveling the bottom of a shoe although itshould including novel combinations of parts and details be understood that it is not limitedin its appliof construction, will now be described by refer cation to machines.of-the 'particular type illusenceto-the accompanyingd'rawings and pointed trated. outin the claims.

In Letters Patent of the United Statesv No. In the drawings, 2,328,572, granted September'i, 1943, on an appli- Fig. lis aside elevation: partly in'sectionofa cation of Lloyd G. Miller, there is illustrated a portion :of a machine inwhichthe' invention-is jack for supporting a shoe the leveling opera embodied;

tion employing a toe support, a heel support and. Fig. 2 is a side elevation of) a portionof: the an :intermediate'support forthe cone'o'f the last. mechanism for operating the -conewsupport; This intermediate or cone support is movable Fig. 3 is a-front'elevation'ofthe cone support heightwise of the shoe to a position determined looking in the direction of the arrows bythe shoe when the shoe is positioned'on the of Fig: hand w jack and upon movement ofthe jack to carry the Fig. 4' a section .on the line IveaIv'ofFig; 1". shoe beneath the leveling roll the cone support Qli lustrated h rein as app i d o is forced more firmly against the last or shoe a leveling machine of the type illustrated-1n Leta-s thereby to provide adequate support for the incars Patent of the United States .No'. 1,667,761- termediate portion ofthe last. Whereas the-heel 5 granted M y 1, 1928, omen-application of E. sup-port in such machines is made adjustable with Winkley et al. The machine includes a shoe sup-.- respect to the toesupport to accommodate shoes port or jack comprising a heel post L0 vand a toe of diiierent sizes, heretofore no provisionhas been post 42 carrying means for supporting a shoe and made for similarly adjustingthe eonesupport. last for the leveling operation performediby: a Accordingly, it has been found necessary to proroll I4'that applies downward pressure on the-shoe vide several jacks in cases in which the leveling sole and acts progressively along the shoe hot-t machine is to operate on a'wide range of sizes, tom as the jack is swung by powereoperated the relation between the cone support and the means in directions lengthwiseof the shoe. The:

toe support in thedifierent jacks being diiierent heel post carries a spindle is arranged to enter to accommodate shoes in different size ranges. the'spindle hole inthe heel .end of the last,ithe

Itis an object of 13116:!)1'656111 invention to elimspindle being mountedon a block 18 pivoted at inate the necessity of changing jacks inma 2t on anupward extension of the heel postfor chines of this type by providing means-tor adv swinging movements lengthwisejoi .theshoe The justing the position of the cone support during spindle It extends through .an-enlargedopemn the relative adjustment of the heel support and 40 in a plate.22 carriedby the block 18, the-p1ate the. toe support. To this'end andin accordance being free to tipeabout an axis extending later with a feature. of the invention, the. cone supally of the shoe to adjust itself tothe top face.

port is mounted for movement ina-direction of the heel end of the last. The blockdaisqcon lengthwise of a shoe on the jack, theadjustnectedby a link to mechanism-(not. shown).

ment preferably taking place duringthe adjust; whereby the block-and spindle m y be swung in ment of the-heel support. Inorcler to maintain a clockwise direction by depressingianarm125st the properrelationship between theheel and toe press the toe end of the shoe firmly down upon supports and the .cone support, the cone support' toe-supporting; means -.carr.ied bythe toepos't -as is movable at a difienenti rate from that ofthe disclosed more fully in Letters Patent oithe,

heel support so thatregardless of .whatsize shoe Unitedstates No. 1,719,158 granted Jilly 2, 1929, is being. operated upomthe cone support will em upon an application of ,EjWink1eyet al. The

gage thecone ofthelastinsubstantially the-same toe-supporting means comprises a member 28;

relative position. Inaccordance with another diustableon arcuate euideways on the his po feature or the invent onprovision isjmade f 1 andhas mounted th reon a b ock illiladi'i movin the ne supp th ieh ise of the h el le'upward y and downward y bya wedge-.32 as and. toe supports duringtheadjustmentoithe shown fmore clearly in Letters Patent 0151 United States No. 1,962,141 granted June 12, 1934, on an application filed in the name of A. Eppler. Supported on the block 30 is a toe rest comprising a rubber pad 34 hollowed out to receive the toe end of a shoe, and a holder 36 by which the pad is carried. 1 The holder 36 ismounted on the block 30 .for self-adjustment relatively to the shoe about an axis extending laterally of the shoe and located substantially at the shoe-engaging face of the pad 34.

The jack is fulcrumed upon a shaft 38 in suitable bearings, one of which is indicated at 40, in

moved downwardly to permit placing a shoe in position on the jack. When the jack starts its rearward movement at the beginning of the the frame of the machine. The heel post I0 of the jack is fulcrumed upon the toe'post at 42 and is adjustable relatively thereto by a threaded adjusting member 44. Mechanismis provided for. adjusting the travel of the jack by the operating mechanism in accordance with adjustment of the heel post relatively to the toe post so that the length of travel will correspond with the length of theshoe being operated upon. Mechanism for accomplishing this is illustratedand described in Letters Patent of the United States No. 1,239,664 granted-:Septemberll,191'7 on an application filed in the name of -W. C. Baxter. :Such mechanismwincludes an arm 46 extending rearwardly from the heel post I0 and connected by a link 48 to an arm 500i a bell crank lever 52 fulcrumed upon-thetoe post at 54-. The other arm of the bell crank lever operates mechanism such as described in the Baxter patent for varying the length of travel of the. jack in accordance with the size -'of-the shoe being operated upon.

The last is supported between its heel end and fo'r'epart bya cone support 80. This cone suppore comprises a pad 62 of rubber or the like arranged for engagement with the cone of thelast and is mounted inthe'upperend of a holder 64.

As shown in Fig. 3 this holder comprises a pair which is in turn providedwith a downwardly extending screw 80-by which-the bar I8 is connected to' the upwardly extending arm 82 (Fig. 1) of a bell crank'lever 84. This bell crank lever is pivoted at 86 to abracket 88 extending rearwardly from the toe support. Arearwardly extending armsn of the bell crank lever 84 is connected by a link 92 to' the arm;50 of the bell cranklever 52. 'The lowerend of theholder 64 is pivotally connected by'a pin 94 to the lower'end of a slide 96v movable vertically inaslideway formed in a boss 98 on the'block 30. Integral with the slide 96 is a'rack l flllwhich meshes with a pinion I02 keyed to'a sh'aftIM journaledin the boss 98. Secured to. the shaftI04 is one end of a spring I06 (Fig. 3) theother end oithefs'pringj being connected to a handIeffI-IJB whichinaybesecured to the boss 98 in anyoiiefpf a plurality of positions by any suitable means, to. varyjthe action of the spring I06 on'theshaft I04.' This spring acts to turn the shaft 104m a clockwise direction, as viewed in Fig. 1, thereby to urge the holder 64 with the pad 62 upwardly.

Secured.to the'shaft m i is a ratchet no (Fig.

3) arranged for engagement with which is a pawlfll IZIcarried by an arm I I4 rotatably supported at the outer'end of a projection II6 exleveling operation the arm I I4 is moved in a clockwise direction and the pawl II2 moves off the shield I I8 into engagement with the teeth of the ratchet IIO thereby locking the slide 96 against downward movement and then upon further movement of the arm H4 in the same direction the slide 96 is moved upwardly to force the pad 62 more firmly against the last. For a more complete description of the parts described above, reference may be had to Letters Patent of the United States No. 2,104,739 granted January 11, 1938 on an application filed in the name of A. Eppler et a1.

For thus moving the arm II 4 in a clockwise direction at the beginning of the leveling operation mechanism similar to that shown in the Miller patent referred to above is employed. This mechanism includes a'pair of toggle links I20, I22 (Figs. 1 and 2), the link I20 being pivoted to the lower end of the arm H14 and the link I22 being fulcrumed on the toe post at 54. The toggle link I22 has a cam'surface I24 which cooperates with a cam roll I26 carried by the frame of the machine arranged to straighten the toggle links, upon rearward movement of the jack, against the action of a spring I28 (Fig. 2) connected between a forwardly extending projection I30 of the arm I I 4 and a pin in a boss carried by the projection H6. The initial rearward movement of the jack causes the slide to be locked against downward movement-by engagement of the pawl IIZ with the ratchet H0, and as the toggle links I20, I22 are further straightened, which occurs preferably at the time when the toe end of the shoe moves beneath the leveling roll, the slide 96 is moved upwardly to force the pad 62 firmly against the cone of the last. The spring I28 snaps the toggle slightly past the straightened position in which it is held against collapse by a screw I32 carried by the link I20, which screw cooperates with a shoulder I 34 on the toggle link I22. This toggle link has a tail I36 which engages the cam roll I26 at the completion of the leveling operation when the jack is moved back into the position shown in Fig. 1 at which time it is desirable to relieve the force exerted by the pad 62. Engagement of the tail I36 with the cam roll I26 causes the toggle to return to the position shown in which it is held by the spring I28 whereupon the shield I I8 moves the pawl I I2 out of engagement with the ratchet I I0.

It will be understood that when the heel post is. moved away from the toe post to adjust the jack for a larger size of shoe the bell crank lever 90 will be moved in a counterclockwise direction, as viewed in Fig. 1, thereby to move the cone support also away from the toe support about the axis of the pin 94. The movement of the cone support is proportioned to that of the heel support to move at a slower rate such that it will occupy the correct position lengthwise of the shoe regardless of the particular size of shoe which is to be operated upon. It is also desirwhen no shoeis located on theijack,"be varied in accordance with the size of the shoe so that only a slight depression ofthe pad will be-rcquired upon placing a shoeonthejack. It will be understood that, the heights of the cones of lasts 'of different sizes vary; generally in accordance withthe-size so ithatfora :larger shoe the pad'filshould occupy aninitial lower position than for a smallrsize'shoe The shoeshowniin FigJ represents the I smallest size wwhich the machine is capable of accommodating,

- Inorder thus to varylthe heightwise-position of the cone support simultaneously with its=ad-- justment lengthwise of :thelastthe" following mechanism is employed. A'cam plate I38= (F.igs. landr3) is carried by oneof 'thezbars-fifiofthe holder and is urgedupwardlyrof the holder by a spring I40. This'spring lS1CIOI11'l6GtEd at its upper end toe pin 142 on the holder and a-t its lowerend to thecam plate=-I"3'8-by a pin I44 extending through a slot M6 in thebar- 66. ,Astud I48 passes through an open-ended slot in the upper endof the cam plate .1 38 and is threaded into the bar 66 to guidethe upper end of the plate in its vertical movement, as will. be described. The cam plate is adjustably limited in its up ward movement relatively to the holderfid by a screw I50 threaded through a boss I52 extending laterally from the cam plate, the upper'end of the screw engaginga head I=54==on the pin 94. The :pin 94 extends through 'ai'slot I56 in the lowerportion of :the cam plate 138 and'thus guides the lowerportionof the'cam plate int-its vertical movement. Thus it will be seen that the cam plate and the holder 64-will move as a unit about the pin 94-but that the-holder and cam plate may partake ofrelative vertical movements.

On the lower end of the cam plate is pro vided a rearwardly extending foot H38 arranged for cooperation with; a- :roll I60 on the-boss- 98. Thisfoot normally engages the roll lto when there is no'shoeon the jack but during thedownward movement imparted by the shoe to thepad- =52 when'the shoe is placed on the jack;the-foot I53 is moved'downwardly below the roll, as shown in: Fig. 1. Assume now that there is no shoe'on the jack andthat screw 44 is turned tomove the heel support IIlaway from the'toe support to accommodate a shoe oflarger. size; The bell crank lever is moved in 'a counterclockwise direction :Caus-ing the holder -64 toswing about the pin 94-so that the supporting padt2: moves away from the toe pad-'34. The foott-Eafior-the cam plate I38 acting against the roll IBBwill: cause a downward movement, to be-imparted-lto the slide. 96 and-the, holder -64 so that .theu ad- 62 is moveddownwardlyupon adjustmentot the jack for a larger size'shoe. This'compensates for the increase in the cone height of the last n the larger sizes. The extent of "downward movement is such that the pad-62 will occupy a position "somewhat higher-than that'whic-h it occupies when a shoe is placed on the jack but by reason of the adjustment ofthe heightwise position of thepad'the extent of. downward movement thereof upon jacking the shoe ismirrimized. q

The cam plate 1:38 is madeiseparate =rom the holder 64 to prevent "breakage of parts: in-th'ezevent thatthe operationror the'level-mgimachines should be started withoutrany, shoe-being placed on the jack" and tovpermit adjustment rbyythe screw I50 of the relativeapositions ot the holdera and cam plate when; the-'foot- I 58 is in. contact with therroh r I'60,@:a1rd:.dthus adjustment ot: the

initial positiorrof the :pad 62 in: addition to the automatic adjustment of the pad heretofore described. Such adjustment is desirable-to accommodate shoes'of different styles. It will be understood: that before a shoe is placed onthe jack the foot'l58 of the cam: plate I38 bears against theroll I60. Normally the holder 64 with its cam plate I38 and the slide 96 aredepressed when the shoe is placed on the jack so thatwhen the slide'9B is subsequently moved upwardly, as heretofore described, to force the pad 62 firmly against the cone of the last, the foot I58 will not engage the roll I60. If, however, the slide 96 has notbeen depressed due to failure of the operator to place a shoe onthe jack, and the jack is subse quently moved rearwardly, the slide '96 with the holder 64 can move upwardly with respect to-the cam-plate I38 by reason of the slidable' connec--. tion therebetween. Were this not possible damage would occur to the machine because of the engagement of the foot I 58'with the roll I60.

From the above itwill be seen that I have devised a jack embodying heel and toe supportsand an additional support for the cone of the last in which the relative positions of the parts arewreadily adjustable to take care of a wide range of sizes of shoes. -With the arrangement disclosed herein a single jack maybe employed for shoes of all sizes from childrens up to mens large sizes.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1.. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a'toe support and an additional-support for the shoe between the heel support and the toesupport, means for relatively adjusting said heel and toe supports to accommodate shoes of difierent sizes, and means operated by said adjusting means for adjusting said additional support lengthwise of a shoe relatively to said heel and. toe supports.

2. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support; a toe support and an additional support for the shoe between the heel support and the toe support, means for relatively adjusting said heel and toe supports to accommodate shoes of different sizes, and means operated by said adjusting means for adjusting said additional support relatively to said heel and toe supports.

3. In a shoe-pressing machine, a jack for supporting a shoe for'thewapplication of pressure to the: bottom thereof, said jack comprising a heel support, a toe support and an additional support for the shoe between theheel support and the toe-support, means for relatively adjusting said heel and toe supports to' accommodate shoes of difierent sizes and means operated by said adjusting means for adjusting said additional sup-' port both: heightwise and lengthwise of the shoerelatively to said heel and toe supports.

4;. In" a-shoe-pressing.'machine, a jack for supDQrting-ashoe for the application of pressure to thebottom thereof, said jaclc comprising a heel support,a toe support and an additional support rfor the shoe between. the heel support and the toe support, means for relatively adjusting said heel and toe supports to: accommodate shoes of dififiI'Gl-ltwSlZES, and means operated :bysaid adjusting means for adjusting the heightwise positiorrof said additional supportr,

5. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support and an additional support for the shoe between the heel support and the toe support, means for relatively adjusting said heel and toe supports to accommodate shoes of difierent sizes, means operated by said adjusting means for adjusting the heightwise position of said additional support, and other means for adjusting the heightwise position of said additional support to compensate for shoes of different styles.

6. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, means for adjusting said heel support toward and away from said toe support, and means for adjusting said additional support in the same direction as that in which the heel support is adju's'ted but at a lesser rate.

'7. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, means for adjusting said heel support toward and away from said toe support, means for adjusting said additional support in the same direction as that in which the heel support is adjusted but at a lesser rate, and means operative in response to movement of the additional support away from the toe support for moving the additional support downwardly.

8. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, means for adjusting said heel support toward and away from said toe support, and connections between said heel support and said additional support for moving said additional support in the same direction as that in which said heel support is moved but at a lesser rate.

9. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, means for adjusting said heel support toward and away from said toe support, connections between said heel support and said additional support for moving said additional support in the same direction as that in which said heel support is moved but at a lesser rate, and mean operative during said movement of the additional support for adjusting the heightwise position of the additional support.

10. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprisin a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, means for adjusting said heel support;

ditional support for adjusting the heightwise position of theadditional support, and means for.

8.. additionally adjusting the heightwise position of the additional support independently of said movement of the additional support.

11. In a shoe-pressing machine, means for supporting a shoe at the heel end and at the forepart for the application of pressure to the shoe bottom, an additional support for the shoe between the heel end and the forepart movable to a position determined by the shoe by pressure of the shoe on said additional support, means for adjusting said supporting means to accommodate shoes of different sizes, means operated by said adjusting means for adjusting the initial heightwise position of said additional support prior to its contact by the shoe in accordance with the adjustment of said supporting means, and means for forcing said additional support more firmly against the shoe after it has been thus positioned by the shoe.

12. In a shoe-pressing machine, means for supporting a shoe at the heel end and at the forepart for the application of pressure to the shoe bottom, an additional support for the shoe between the heel end and the forepart movable to a position determined by the shoe by pres sure of the shoe on said additional support, means for adjusting said supporting means to accommodate shoes of different sizes, means for simultaneously adjusting the initial heightwise position of the additional support prior to its contact by the shoe in accordance with the adjustment of said supporting means and for adjusting the position of the additional support lengthwise of the shoe relatively to said supporting means, and means for forcing said additional support more firmly against the shoe after the support has been positioned by the shoe.

13. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, a slide between said heel and toe supports movable vertically relatively thereto, means pivotally mounting said additional support on said slide for adjustment lengthwise of the shoe relatively to said heel and toe supports, means for adjusting said heel support toward and away from said toe support, means connecting said heel support to said additional support to swing said support relatively to said slide thereby to move said additional support in the same direction as that in which said heel support is moved but at a lesser rate, and means operative during the swinging movement of said additional support for imparting vertical movement to said slide.

14. In a shoe-pressing machine, a jack for supporting a shoe for the application of pressure to the bottom thereof, said jack comprising a heel support, a toe support, an additional support for the shoe between the heel support and the toe support, a slide between said heel and toe supports movable vertically relatively thereto, means pivotally mounting said additional support on said slide for adjustment lengthwise of the shoe relatively to said heel and toe supports, means for adjusting said heel support toward and away from said toe support, means connecting said heel'support to said additional support to swing said support'relatively to said slide thereby to move said additional support in the same direction as that in which said heel support is moved but at a lesser rate, means operative during the swinging movement of said additional support for imparting vertical movementto said slide, and means for moving said slide upwardly to force the additional support firmly against the shoe after the shoe has been positioned on the jack.

ANDREW EPPLER, Ja.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,690,197 Headley Nov. 6, 1928 1,690,433 Ricks et al Nov. 6, 1928 2,104,739 Eppler et a1 Jan. 11, 1938

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