CH202230A - Pressing device accessory to a machine for shaping shoes. - Google Patents

Description

Machine accessory Pressear device for shaping shoes.

The object of the present invention is a positive presser machine accessory presser for putting on the last of shoes, of the kind of Gelles provided with retracting members which are movable towards the 1st Üessous of the last, as well as laterally 1 one towards 1 the other, from the opposite sides of the last, and which can be used in the case where the upper is joined by Gluing to the first sole and in which, for this purpose, the marginal part retracted from the vamp to a compression against this sole, this compression being able, I: Gas echeant, to be accompanied by a heating, during the solidification -of the rolle. This presser device is intended to rest on the tucked-in marginal part of the upper, and to be removed from the shoe when the latter is removed from the shaping machine, and comprises two elongated presser members, movable relative to one another, and articulated with one another near the end of the device corresponding to the toe of the shoe, at least one res-

spell tending to move the free ends of the organs away from each other.

This presser device is characterized by the fact that each of the presser members has surfaces intended to come into contact respectively with an inner edge and with a surface turned towards the shape of one of the retracting members of the putting machine. shape with the aim that, during movements of said retracting members towards each other and towards the last, the Pressing members are constrained: to compress the retracted marginal part of the upper of the shoe and, simultaneously , to be pivoted inwards to exert on this Marginal part a action of retraction and tension.

The accompanying drawing shows, by way of example, one form of execution of the object of the present invention and the way of employing it.

Fig. 1 is a top view of this device, the upper part of its handle being broken.

Fib. 2 is a plan view of this device.

Fig. 3 es- a cut through. li--iie:3-:3 of fig. 2.

Fig. 1 is a section through line 1-1 of FIG. 2.

Fib. 5 is a bottom view showing both the Premiere sole and the upper my t6e3 on a last, the upper being pulled and held taut and being ready for shaping in a lasting machine.

Fig. 6 is a fragmentary bottom view shown, nt the front part of the claus sure 1a fig. 5, as it appears substantially at the completion of the operation of retracting the Tip, a figure showing the retracting members of the shaping machine moving forward above the Base of the shoe.

Fig. 7 is a side view of 1a. Point of the Retract and Represents the Position of the Retractor and the Base Surface of the Claussure with respect to one. the other at the completion of the re-entry operation.

Fig. 8 is an underside view of the front part of the cleft and shows the presser device of FIGS. 1 ä, -1 plaee On the. Part urargina.le return from there, mauere de 1'empei bne, les or-a.nes returnuns de la. inaehine before retreating and before being slightly lifted away from 1a. Basis of 1a. shoe.

Fig. 9 is a view analogous to fi. B. but showing the front retracting members partially advanced and the presser device slightly contracted in width by the action of said members.

Fig. 10 is a transverse section representing the shape and the shoe and represents the action of elongation and retraction of the presser device which results from the widthwise contraction of the device during its use.

Fig. 11 is an elevational view fra.g mentair.e showing one of the retracting organs and the position of this organ and the Base of the haussure 1'un with respect to

1'autre lxn (lant that we use the device pi-e: sseui.

Fig. 1? is: a view from des@sous fra.gmen tairo de 1a. shoe and shows the appearance of its tip and front part after the shaping operation as it is carried out with the help of the present device shown.

<I>Im</I> presser device represents com prernd two curved presser organs allon ges 1 and 2. res organs being articulated 1'un with 1'au.tre. close to the end of the device. corresponding to 1a Tip of 1a<B>,</B> cliaussure, with the aid of an a.xe: 3. Due to rette artieu la.tion provided at the front end of the organs 1 and; z), an can bring the rear or free extremities closer or further apart d and, 5, co which makes it possible to vary 1a. effective width of the device. Pressing organs 1. and `? respectively present curved outer edges 6 and 7 and inner edges rie.urs corirbes 8 and 9. As shown. each of them has a substantially constant width from one end to the other, and the width of each member is such that it covers the inward marginal part of an instep but does not extend towards 1 'internii, ä, an iniportant degree beyond. of the inner edge of the retracted marginal material. The Presser orLi'anes 1 and `? are de- con.struction i2gicle and stiff: for example, they may be Tarier, of brass or of an a.nalo;ue inatiere. and each of them has a flat lower surface devoid of any lugs or teeth. other dirt likely to penetrate the sole or damage this sole. These surfaces could, in a variant, be made rough, knurled or otherwise such that they ensure a Good Grip or clamping action by friction: ment on the retracted marginal part of the upper.

IThe outer edge of each of the presser members 1 and ? presents a groove 10 (fig. 4) closer to the flat lower surface of this member than to its upper surface, groove having a flat lower wall 11 and a bottom formed by

a vertical wall 12. As represented, the upper part of each of the pressors 1 and 2 has a cavity 13 (fig. 4) in which is placed an electrical resistance coil 14, which is preferably embedded in an insulating material 15 such as the same, the heating coils 14 and the insulating material being held in position by means of detachable plates 16. If desired, the heating coils can be removed and the device heated by its contact. with an external heat source, for example by placing it on a stove in the interval between successive shaping operations.

The Pressing Organs 1 and 2 are provided, at points located substantially halfway between their ends, with raised lugs 17 and 18 which are perforated and whose openings are respectively intended to receive and guide the Parties. extremes 19 and 20 dune pike forming bridge 21 (feg. 2 and 3). These end parts 19 and 20 are bent concentrically to the articulation axis 3 and slide freely in the guide openings of the lugs so as not to interfere with the relative movement of the rear ends 4 and 5 of the presser members. The bridge 21 serves as a support for the rod 22 of a handle 23, the latter being made of insulating ma.tike so that it does not become too hot to make its maneuver troublesome during handling of the device.

Flexible conductors 24 leading from the heating coils 14 of the respective parts 1 and 2 pass through the flexible rod 22, then rise to a flexible conductor 25 (fig. 2) connected to the handle 23 and terminated at any convenient source of electrical power. Springs, sausage 26, surrounding the end parts 19 and 20 of the bridge are arranged so as to bear, by their internal extremity, against the rod 22 of the handle and, by their external extremity, against the internal surface of the ears 17 and 18. To limit the first movement of the pressing organs under the action of the springs, screws 17a, 18a are screwed into the tapped holes that prd-

feel the ends of Parts 19 and 20; resp.eotively, the head of the screws taking normal support against the outer surface of the ears 17 and 18. one of its ends to the corresponding presser member and one to the other by their opposite end, the Aant sleeve rises to the point of junction of these two branches. D, in this arrangement, the springs @ä sausage @ would be replaced by a curved spring arranged between the Pressing Organs and .dopt the opposite ends would bear against the inner edges of the respective Organs 1, 2.

In the fegs. 5 to 12 inclusive, 2.7 indicates the first sole of an assembled shoe (on an L last, feg. 10) with the vamp 28. On feg. 5, an has represented the shoe comb shaped and held taut with the help of seeds 29. To carry out the shaping, an begins by assembling and shaping the shoe, as shown in feg. 5. The last is then mounted on a last forming machine fitted with the Insertion Devices 30 and 31 which are then manipulated so as to inwardly tuck in the Marginal Part of the upper, at least at the right place. the Pointe de la -clraussure, so that, e, the aevement of the operation @<B>of</B> re-entry, the parts substantially occupy the position represented on the feg. 6 In Which The Marginal Portions 3'2 And 33 Of The Upper Have Been Laid Flat Against The Underside Surface Of The First Sole And In Which The Upper Is Stretched Tight Around The Toe Portion of shape.

Having proceeded with rette manike, an makes retract the Retracting Organs 30 and 31, as indicated on feg. 8, and the 1st presser device is then placed on the lower part of the flagon shoe that the Organs 1 and 2 cover the retracted marginal part of the upper and, after having slightly raised the retracting Organs 3, 0 and 31 , and immediately causes them to advance so that their inner edges enter the grooves

10 of orga.nes 1 and 2. These return organs now have the position of fig. 9, their interior bordg coming into eont#iCt with the bottoms 12, grooves 10 pressing a.insi to a certain extent the organs 1 and <B>'</B> 1'un vors 1'.autre. At the same time, the reentrant organs whose lower surfac.es are in contact with leg par.rois 1.1 of the grooves 10 are moved: s vors the first bottom with a strong 6uf fisante for pressing the organs 1 and? firmly against the marginal part of the vamp.

The opposing surfaces of the Marginal Part of the Upper and the Insole have been made sticky. For example, one can introduce rubber latex between the adjoining surfaces before placing the present presser device on the marginal paxties or introduce the roll a little more <B>161:</B>: or else, if mi For example, you can use a roll that is normally dry but gets sticky when heated.

Assuming quo los organs Pressors 1 and ? have been heated, the Pressure exerted downwards on the Organs and the movement they perform internally, as indicated by the arrows in FIG. 10, not only have the effect of compressing and flattening the marginal part, but also of exerting on this part a re-entry or tension action which tends to prevent the upper from bulging slightly towards the exterior, as indicated by the dotted lines B (fig. 10<B>)</B>, which bulge is sometimes occasioned when trying to flatten the <B>,</B> part marginal by simple direct pressure exerted on the bottom.

This simultaneous action of Pressure exerted on the stocking and tension exerted on the inside pulls the upper of the vamp very firmly around the last and around the edge of the first breast, compresses this material and the maintained in this state until i'i ce quo 1a. rolle has substantially Done Taken. The result is that the marginal portion of the upper vamp is very firmly attached to the first sole and A, the substantially flat state, as indicated at 32a, 33a (fig. 1?). Of course, one could carry out between the operations described all the usual intermediate operations such as the cutting of the excess lining, the trimming of a part of the material of the marginal part retracted at the tip, the removal of temporary seeds of mixes on form, ete., all according to well-known practice.

Claims (6)

11EVENDICATION Presser device accessory of ma.chine of inise on form of elia.ussures provided with or ganes retournrs which are mobile vors 1e of the sows of the form thus cine laterally 1'un vors 1'autre since los 6) your opposites of the form, this presser device being intended to rest on the marginal part of the instep of the upper of the shoe, and to be removed from 1.1. clianasnre when removing the latter from the mixing machine on form and comprising dein Pressing Organs @illonges, mobile 1'un compared to the antrum and articulated 1'un with 1'autre near the end of the device , corresponding to the tip of the shoe, a.ic less a spring tending to move away from one another the free ends of the organs, this device is characterized by the fact that each of the pressing organs has siirfaees intended to come into respective contact with iui Inner edge and with a surface turned to the shape Tun of the retracting members of 1a. niaehine of mixing on last in the 1st purpose quo, during movements of the aforesaid Retracting Organs vors 1'autre and vors the last, these Pressing Organs are constrained to come into contact with the marginal Retracted Part of the instep of the shoe and. if mnltaneinent, ä. 1>vote inside to exercise on this part niargina.le an aetion of reentry and tension. SUB-CLAIM S 1 Pressing device according to claim, characterized by the first fact that the two Pressing Bodies are curved to follow the first contour of the respective cWs of the Tip of the First Sole of 1a. shoe, each of the Organs presenting a flat surface with which it comes into contact with the retracted marginal part of the upper. 2 Pressing device according to claim, characterized by the fact that each Pressing member has, along its outer edge, a groove on the wall located on the side of the surface of this member coming into contact with the retracted marginal part. of the upper and the bottom constitute the surfaces with which the aforementioned surfaces of the corresponding tuck-in member of the shaping machine come into contact. 3 Presser device according to sub-claim 2, characterized in that the grooves of the Presser members are located close to the surfaces of the said members coming into contact with the recessed marginal part of the upper. 4 presser device according to claim, characterized by the fact that it comprises a bridge which connects the presser members so as to allow their free ends to approach one another, and a handle (work carried by this bridge. 5 Presser device according to sub-claim 4, characterized by the fact that the bridge has two end parts curved concentrically to the axis of the articulation of the Presser members and that each of the said members has at an intermediate point of its length a raised ear which has a hole in which the corresponding end part of the bridge can slide, these two opposite end parts of the bridge being surrounded by coil springs which bear, each by a hinge, against the corresponding lugs. 6 Pressing device according to the claim, characterized in that each of the pressing members has a cavity which contains an electric heating element.