EP0701017B1 - Method and device for treating stitches of textile products - Google Patents

Abstract

To take and transfer one or more knitted stitches, to needles of the same or a different machine, the needle (1) with the stitch (3) and sinkers (2) is raised to move the stitch (3) into an ejection position below an open latch (5) of the needle (1). The needle (1) is drawn down to bring the stitch (3) into the knock-over plane (4) defined by the sinkers (2). A further lowering of the needle (1) shifts the stitch (3) on the needle (1) neck to the latch (5) hinge. The needle (1) is lowered still further to close the latch (5) or operate the slide. The stitch (3) is lifted (6) to the needle head through contact. The needle (1) is lowered again to the bottom setting for the stitch lifter (6) to move into the stitch (3) for automatic transfer between the needle (1) and the lifter (6). Also claimed is a knitting appts. with a lifter (6) for each stitch (3) at a needle (1), with a plate or point to lift and transfer the stitch (3). The lifter (6) has a concave throat facing the curved needle (1) head carrying a stitch (3) to cover the needle head on closing the latch (5) or slide. The lifter point (6) can be on a carrier with a longitudinal sliding movement.

Description

The present invention relates to a method and a device for removing one or more stitches of a knitted manufactured product, weaving needles of a textile machine and for their transfer and placement on other organs textiles, from the same machine or another.

"We know from document EP-A-592.376 a process to make with a knitting machine circular to a single cylinder, the reversal of 180 ° around a horizontal diametral axis of the half needle row needle cylinder low in training and their engagement on matching needles on the other half row of so that they are adapted by the remeshing on the needle cylinder itself.

In addition, document EP-A-594,169 describes a device for removing several meshes knitting needles and for their transfer and deposit on other cylinder needles to knitting, said device comprising means with a two prong element of a clamp elastic between which the needle loaded with the mesh is provided with an advance movement and back so that the mesh is discharged on the hollow heads of the forks.

It is known by those skilled in the art that in textile knitting machines, more particularly straight machines, for example in Cotton type looms, to allow the carrying out different knitting operations after the realization of a product manufactured in knitting, such as knitting two different parts of the same manufactured product, the meshes formed last, or a part of them, are taken by the respective training needles by means of organs, in jargon called "punches", capable of covering said needles so as to allow the transfer of meshes of these with the punches. The mesh as well samples are therefore transferred, with said punches, on other needles of the same machine or a different machine. With the term "cover" we design a condition designed by a momentary coupling between the head of a punch and that of a needle, one on the extension on the other, with no continuity solution, in order to allow the transfer of a needle stitch with punches, and / or vice versa, without obstacle.

Said punches are in an even number to the number of weaving needles loaded with stitches sample, shaped so that it can be hooked by the head to the hook of the needles, and grouped in blocks, usually called "combs", each of which includes a number predetermined with punches.

But the movement of said combs is very difficult and most often manual, this requires good handling experience of these textile organs, and therefore require the use specialized labor and has a cost high manufacturing of the finished product. In addition their application to circular machines is difficult to achieve given the complexity of management mechanical components necessary for the process automatic said operations.

The main purpose of the present invention is that of eliminating said drawbacks.

This has been achieved, in accordance with the invention, by adopting an operational method according to claim 1.

Advantageously, in accordance with the invention, the number of meshes thus taken is indifferent, compatible with the characteristics of the manufactured product and the textile machine responsible for its training: ledites mesh can also be taken in groups adjacent meshes, each group being formed by a predetermined number of meshes.

• des moyens pour le prélèvement des mailles desdites aiguilles et pour leur transfert sur d'autres organes textiles de la même machine ou d'une autre machine textile;
• des moyens pour le mouvement desdits moyens de prélèvement et transfert des mailles.

As regards the implementation of said operational method, it comprises, in combination: - means for the movement of each of said mesh-forming needles in the direction of the respective longitudinal axis;

• means for removing the stitches from said needles and for transferring them to other textile members of the same machine or of another textile machine;
• means for the movement of said means for removing and transferring meshes.

The advantages deriving from the present invention basically consist of what it is possible to operate the debit and transfer of all or part of it of a manufactured product between textile organs of the same machine, or of different machines, of completely automatic and with a significantly higher production than that obtained with traditional equipment, this that it drastically reduces the cost of manufacturing finished products; one operational process according to the invention is achievable either with straight machines, with circular or mixed machines; one device according to the invention is to relatively simple, economical and reliable even after an extended period of use.

These advantages and characteristics of the invention as well as others will be more and better understood of each skilled person in light of the description which follows and using the drawings attached given as a practical example of a concrete form of realization, but not to consider in the limiting sense, on which: Fig. 1 schematically represents the detail a textile machine predisposed to allow the removal and transfer of meshes from manufactured product knitted in accordance with the invention, said machine being of the type mobile plates (2), where a needle is visible flap type weaving at the end of the its lifting, in the plate position closed and with the respective mesh in position of dump; Fig. 2 represents the needle of the Fig. 1 in the descent phase, with the corresponding mesh (3) near the relative valve hinge; Fig. 3 represents schematically the needle of FIG. 2 in the phase of another descent, with the means of removal of the mesh approached at the head of the needle, that is to say in the cover position, and with the respective flap mesh; the Fig. 4 represents yet another downside, with the means of removing the mesh advanced by compared to the previous phase and with the mesh invested in them: FIG. 5 represents the needle of Fig. 4, with the sampling means raised from the previous phase and from release of the respective plate, and means support of the mesh invested on the aforementioned means of sampling; Fig. 6 represents schematically the sampling means and transfer of the mesh according to a shape alternative realization; Fig. 7 represents schematically the means of sampling the mesh, with the same support means, and the means (13) for transferring the mesh of respective needle collection methods (10) from the same machine or from another machine textile, in the initial deposition phase or unloading of the mesh; Fig. 8 represents the means of FIG. 7 in mesh position filed; Fig. 9 schematically represents the means of removal and transfer of the mesh Fig. 7, in the initial phase of filing the mesh on a point of stitching machine (11); Fig. 10 shows the means of FIG. 9, in position deposited mesh; Fig. 11 represents schematically the means of sampling the mesh, according to an alternative embodiment, placed in the mesh retaining position; the Fig. 12 shows the means of FIG. 11 in position of consented release of the mesh; the Fig. 13 schematically represents the means of mesh removal according to a form alternative embodiment, in mesh position detention; Fig. 14 shows the means of Fig. 13, in the initial release phase mesh; Fig. 15A represents schematically a group of sampling organs a length between two values different; Fig. 15B represents schematically a group of sampling organs different length between three values different; Fig. 16 shows the means of Fig. 13 in the final predisposition phase the same when the mesh is released; Fig. 17 schematically represents the means of removal and support of the mesh with the respective support bodies; Fig. 18 schematically represents the means of removal of the mesh with the respective movement organs, according to a first form of production; Fig. 19 schematically represents the means of removing the mesh with the respective movement organs, according to another embodiment; Fig. 20 represents schematically the means used to order means of FIG. 16; Fig. 21 represents schematically a group of sampling organs with means of movement in two directions orthogonal to each other.

(a) soulever l'aiguille (1) de tricotage qui supporte la maille (3), avec les platines (2) avancées, c'est-à-dire fermées, de manière à placer la maille (3) en position de déchargé (niveau S de la Fig. 1), c'est-à-dire inférieurement au clapet (5) ouvert de l'aiguille (1);

(b) abaisser ladite aiguille (1), de manière à obliger la maille (3) à se placer sur le plan d'abatage (4), lequel est délimité dans ce cas par les platines (2) et, avec une autre déscente de l'aiguille (1), obliger la maille (3) à bouger sur le cou de l'aiguille (1) en se plaçant en proximité de la charnière du respectif clapet (5);

(c) abaisser encore ladite aiguille (1), de manière à provoquer la fermeture du respectif clapet (5) du côté de la même maille (3) investie sur ladite maille, laquelle ne peut glisser ensemble à l'aiguille (1) puisque elle est appuiée sur le plan (4) d'abattage, et, avant la complète fermeture du clapet (5), raprocher un élément (6) de prélèvement de la maille à la tête de l'aiguille (1) jusqu'à son contact avec celle-ci, de manière à réaliser la couverture de l'aiguille (1) et dudit élément (6) avec le clapet ainsi mouvementé;

(d) abaisser ultérieurement l'aiguille (1) et ledit élément (6), de manière à insérer cette dernière à l'intérieur de la maille (3), et ainsi en obtenir le transfet automatique de l'aiguille (1) sur l'élément (6);

(e) transférer ailleur la maille (3) ainsi prélèvée, de manière à permettre le dépôt successif sur des organes textiles de la même ou d'une autre machine. Ça peut conduire aux traitements successifs, comme par exemple la poursuite du tricotage du produit manufaturé sur un'autre machine ou sur un'aiguille d'une différente fonture de la même machine ou sur un'autre zone de la même fonture d'aiguilles, ou le positionnement de la maille à une distance prédéterminée de l'aiguille (1) en attente, et permettre la poursuite du tricotage, ou la mise en train d'un cycle successif de façonnage, sur l'aiguille (1) libérée de la maille (3).

Reduced to its essential structure and with reference to the figures of the appended drawings, a process for the removal of one or more stitches from a manufactured product by knitting needles of a textile machine and for their transfer and deposit on other textile parts, of the same or another machine, comprising the preliminary phase of manufacturing a knitted manufactured product with a machine provided with several knitting needles (1) of the flapper type and a felling plan (4) meshes (3), in accordance with the invention comprises, for each mesh (3) of the manufactured product to be sampled and transferred, the following operational phases:

(a) raise the knitting needle (1) which supports the mesh (3), with the plates (2) advanced, that is to say closed, so as to place the mesh (3) in the unloaded position (level S of FIG. 1), that is to say below the valve (5) open to the needle (1);

(b) lower said needle (1), so as to force the mesh (3) to be placed on the felling plane (4), which is in this case delimited by the plates (2) and, with another descent of the needle (1), force the stitch (3) to move on the neck of the needle (1) by placing itself near the hinge of the respective valve (5);

(c) further lowering said needle (1), so as to cause the closure of the respective valve (5) on the side of the same stitch (3) invested on said stitch, which cannot slide together with the needle (1) since it is supported on the felling plan (4), and, before the valve (5) is completely closed, attach an element (6) for removing the mesh from the head of the needle (1) until its contact with the latter, so as to cover the needle (1) and said element (6) with the valve thus actuated;

(d) subsequently lower the needle (1) and said element (6), so as to insert the latter inside the mesh (3), and thus obtain the automatic transfer of the needle (1) to the element (6);

(e) elsewhere transfer the mesh (3) thus removed, so as to allow successive deposition on textile members of the same or another machine. This can lead to successive treatments, such as for example the continued knitting of the manufactured product on another machine or on a needle of a different needle bed on the same machine or on another area of the same needle needle bed, or the positioning of the stitch at a predetermined distance from the waiting needle (1), and allowing the continuation of knitting, or the setting in motion of a successive shaping cycle, on the needle (1) released from the mesh (3).

It goes without saying that said operations can be repeated several times, so that the same element (6) can take several meshes (3) in succession. After the meshes (3) thus taken can be directed to successive shapings. In this way, it is possible for example to withdraw the final meshes (3) of two or more manufactured goods, or one or more parts of manufactured products, for transfer to a remeshing machine and perform the assembly, or to transfer them to another textile machine to continue the knitting using the latter.

According to the invention it is possible to carry out the over-mentioned processing of any number of mesh (3) of the manufactured product, according to elastic and dimensional characteristics of meshes (3). In the case of removal of all the meshes we get the sample and the transfer of the entire manufactured product. The meshes (3) can thus be removed and transferred even in groups, each group comprising a predetermined number of meshes (3). Advantageously, in accordance with the invention, it is planned to move the mesh (3) away from said needle (1) operating before the retention of the mesh (3) in a fixed and predetermined position on said means (6), to prevent its release spontaneous.

• mouvementer lesdits moyens (6) de manière à placer la maille (3) au-dessus de la tête d'une aiguille (10) différente de celle du départ (1). Ladite aiguille (10) peut être, par exemple, du type à clapet, à coulisse ou à bec;
• libérer la maille (3) desdits moyens (6) et l'investir sur le cou de l'aiguille (10).

Advantageously, in accordance with the invention and with reference to Figs. 8 and 9 of the appended drawings, successively to said phase (e) of removal of the mesh (3) from the corresponding needle (1) it is planned to operate the following other operational phases:

• moving said means (6) so as to place the stitch (3) above the head of a needle (10) different from that of the start (1). Said needle (10) can be, for example, of the valve, slide or beak type;
• release the stitch (3) from said means (6) and invest it on the neck of the needle (10).

Advantageously, in accordance with the invention and in reference to Figg. 9 and 10 of the accompanying drawings, successively to said phase (e) of removal of the stitch (3) of the needle (1), it is provided for deposit the mesh (3) on a remeshing point (11), for example for finishing the meshes terminals of the manufactured product, or for union two or more parts of products knitted, or by means of remeshing.

As far as the device for the realization of said operational process, it includes means according to claim 7.

Advantageously, in accordance with the invention, each punches (6) is provided with a heel (64) slaved to an external control member for activate movement, such as a cam (63) or a control bar (65) to obtain the movement of punches (6) in sequence or all together. The downward movement of the punch (6) can be exploited to get lowering correspondent of the respective needle (1) after the contact between the punch (6) and the needle (1). Each punch (6) can be provided with any interface body of the punch with a body of corresponding command.

Advantageously, in accordance with the invention, the distance between two adjacent punches (6) is equal to the pitch or center distance between said needles (1) or a multiple of said step.

Said punches (6) are all of the same length or a different length, in relation to the type of processing of the meshes (3) to be executed. More specifically, with reference to Figures 15A and 15B annexed drawings, if intended to execute the simultaneous removal of all meshes (3) from manufactured product, said punches (6) are all the same length, so that the respective free extremities (7), i.e. those intended for cover coupling with respective needles (1), always result in a same level compared to the slaughter plan (4) of the machine. If intended not to operate the simultaneous removal of adjacent meshes (3), the punches (6) adjacent to each other are of a different length, so that the ends free (7) punches (6) operating the sampling meshes (3) result at a different level, relative to the felling plan (4) of the machine, that of the other punches (6) in the group. This avoids an'excessive expansion of the mesh (3) thus treated.

According to a first embodiment of the invention, said punches (6) are fixed to the support (61). In this case, the movement of punches (6) is obtained with the movement corresponding to the support (61), which is actionable, in turn, by means of cylinders directors and guided on rails matching or similar.

In accordance with a second embodiment of the invention, said punches (6) are housed one by one in corresponding grooves fundamentally rectilinear (62) of the support (61), so as to allow movement bidirectional in the respective direction longitudinal with respect to the support (61). In this case, the movement of the punches (6) relative to the support (61) is obtainable with cam means (63) or with a control bar (65), acting on the relative heels (64) or organs equivalent, depending on whether you want to movement of the punches (6) one by one, in sequence, or their simultaneous translation from and to the head machine textile. In every way, said grooves (62) can be shaped and different development of these illustrated in them figures of the attached drawings.

In the case of the punches (6) movable relative at said support (61), the movement of the punches (6) to collect and transfer mesh (3) is achievable by combining the movement of the support (61), for displacements of major amplitude, with that of the punches (6) relative to the support (61), for displacements of minor amplitude. In this way it is also possible to differentiate displacements relative between the different punches of the support and / or select the punches to be moved.

Advantageously, in accordance with the invention, said support (61) is subdivided into several separate sections, each of which with a predetermined number of punches (6), so as to further differentiate the movement of the punches (6) of the device and thus enlarge subsequently the range of mesh withdrawals (3) that can be carried out, in order to obtain a greater number of possible machining operations.
Each of said punches (6) can also be shaped so as to present a rod with the axis inclined relative to the portion of the anterior end (7), as illustrated in Figs. 13 and 14 of the accompanying drawings.

Advantageously, in accordance with the invention, means are provided for retaining each of said meshes (3) in a fixed and predetermined position on the corresponding punch (6). Said means are shaped, according to a first embodiment, by a recess (9) which is provided on each of said punches (6) at a predetermined distance from the respective free end (7) and it is intended to retain the corresponding mesh ( 3) levied by the effect of its own elasticity. Alternatively, said means for retaining the mesh (3) on the punch (6) are formed by a blade (8) placed, on command, below the mesh (3) invested on the respective punch (6) so as to prevent spontaneous release. Said blade (8) can be associated with a corresponding control member which consists, for example, of a pile (80) intended to cause rotation thereof around a pivot (81) for connecting the blade (8 ) to a corresponding support member (82). The function performed by the aforementioned pile (80) can otherwise be performed by a cam pivoting about an axis parallel to that of the punch (6), or by a realizing cylinder, acting on the blade (8).
This makes it possible to prevent the fabric from slipping out of the punches (6) during the mesh transfer operations (3).
Means are also advantageously provided for releasing each mesh (3) from the respective punch (6). Said mesh release means (3) consist, according to a first embodiment, by a flat element (13) acting on the mesh (3) invested on the punch (6), so as to cause the movement thereof. pushed, towards the free end of the punch (6), and thus the transfer to the textile member where it is intended, such as for example the needle (10) or the tip (11) illustrated in the figures of the appended drawings. Alternatively, to allow the mesh (3) retained by the recess (9) of the respective punch (6) to be released, a pile (12) pivoting around a pivot (92) for connecting the pile (12) is provided. ) with the punch (6) so as to allow, on command, the cover of the recess (9) which departs from the pile (12) and thus the release of the mesh (3) of the recess (9) said pile (12) being operable with cam means (90) acting laterally on the upper free end (91) of the pile (12) when the punch (6) is moved in the respective longitudinal direction, so as to provide the cover for the recess (9) with the lifting of the punch (6) due to the reaction exerted by the textile member - for example the aforementioned needle (10) - on which it is supported and, respectively, the uncovering of the recess ( 9) with the lowering of the punch (6) in the predisposition phase of the same to the removal of the respective mesh (3). In another alternative solution, as illustrated in Figs. 13 and 14 of the accompanying drawings, said mesh release means (3) consist of a pile with a basically straight axis (14) whose free end is intended to slide adjacent to the corresponding end of the punch (6), which is conveniently shaped with a rectilinear groove (96) to allow the approach of the pile (14) so as to provide the cover, respectively the uncovering, of the respective recess (9) and so as to be inserted inside of the mesh (3) by expanding it, to allow unloading.
Advantageously, in accordance with the invention, the free end of said pile (14) is wedge-shaped and folded laterally so as to result oriented towards the punch (6).

Claims (26)

1. Method for the removal of one or more stitches (3) of an article from the knitting needles (1) of a knitting machine and the transfer and placement thereof onto other knitting members of the same or other machine, including the preliminary step of manufacturing a knit article with a machine provided with a plurality of knitting needles (1) of latch (5) or skidded type and with a stitches-casting off plane (4), characterized in that it comprises, for each article stitch (3) to be removed and transferred, the following operating steps:

   (a) lifting the knitting needle (1) which bears the stitch (3), with the sinkers (2) in advanced position and in closed condition, so as to place the stitch (3) in an unloaded condition, below the open latch (5) of the needle (1);

   (b) lowering said needle (1) so as to force the stitch (3) into place onto the casting off plane (4) which, in this case, is delimited by the sinkers (2) and, through a further lowering of the needle (1), to force the stitch (3) into motion on the needle (1) neck until placing it in the vicinity of the hinge of the respective latch (5) ;

   (c) lowering further said needle (1) so as to cause the closing of the respective latch (5) or the actuation of the skid and, prior to the complete closing of the latch or actuation of the skid, bringing a stitch-removing element (6) close to the head of the needle (1) until it comes in contact with the said head, so as to realize a condition generated by a temporary coupling between the head of the needle (1) and the head of said element (6), one lined up with the other continuously, so as to allow the transfer of the stitch (3) from the needle (1) to the respective element (6) and/or vice versa;

   (d) lowering still further the needle (1) and said element (6), in order to insert the latter into the stitch (3) and thereby achieving the automatic transfer of the needle (1) onto the element (6) ;

   (e) transferring the thus removed stitch (3) elsewhere so as to allow the subsequent placement thereof onto knitting members of the same or other machine.
2. Method according to claim 1, characterized in that comprises to
   moving the stitch away
      from said needle after the retention of the stitch in a preset fixed position on said means, to prevent the spontaneous release of the same stitch.
3. Method according to claim 1, characterized in that after the said step (e) of xxx of the stitch (3) it comprises the following operative steps:

   driving said means (6) so as to dispose the stitch (3) above the head of a needle (10) other than the starting one (1);

   releasing the stitch (3) from said means (6) and fitting it on the neck of the needle (10).
4. Method according to claim 1, characterised in that after said step (e) comprises laying down the stitch onto a hooking up spine.
5. Method according to claim 1, who also comprises removing more stitches in succession by means of a same element.
6. Method according to claim 1, who during said step (c) the lowering of said needle is achieved by a thrust action exerted by said element.
7. Apparatus for the removal of one or more stitches of an article from the knitting needles of a knitting machine and the transfer and placement thereof onto other knitting members, of the same or other machine, in a machine provided with a plurality of knitting needles of latch or skidded type, that is of compound type, and with a stitches -casting off plane, comprising means for individually removing and transferring said stitches by means of a substantially flat element or punch provided for each stitch to be removed and transferred, said element being provided at its bottom with a groove having the concavity substantially facing the head of a needle loaded with the stitch to allow the crook of the corresponding needle to be brought very close thereto, so as to operate the covering of the needle and of the element by the closing of the latch or skid; said punch being suitably supported by a member to which it is so connected as to result either fixed or longitudinally slidable relative thereto.
8. Apparatus according to claim 7, wherein each of said punches is provided with a heel engaged with an external control member to drive it into motion bidirectionally according to the respective longitudinal axis.
9. Apparatus according to claim 7, wherein the distance between two adjacent punches is equal to the pitch [shed] or center-distance between said needles or to a multiple of said pitch.
10. Apparatus according to claim 7, wherein said punches have all the same length or different length.
11. Apparatus according to claim 7, wherein said punches are fixed to said member and that said member is engaged with corresponding drive means.
12. Apparatus according to claim 7, wherein said punches are individually received into corresponding, substantially rectilinear grooves of the support so as to be bidirectionally driven along the respective longitudinal direction with respect to the support.
13. Apparatus according to claim 7, comprising moreover means for driving said punches into motion with respect to the support by means of a cam or a control bar, acting on relevant heels.
14. Apparatus according to claim 7, wherein said support is subdivided into more distinct sections, each with a preset number of punches.
15. Apparatus according to claim 7, wherein each of said punches is formed with a stem having its axis inclined with respect to the front end portion thereof.
16. Apparatus according to claim 7, comprising moreover means for retaining each of said stitches in a fixed and preset position on the corresponding punch.
17. Apparatus according to claim 16, wherein said means for retaining the stitch are formed with a recess provided on each of said punches at a preset distance from the respective free end and intended to retain the corresponding stitch being removed for the effect of its own elasticity.
18. Apparatus according to claim 16, wherein said means for retaining the stitch on the punch consist of a rod able to be driven to a position below the stitch fitted on the respective punch, so as to prevent the spontaneous release of the same stitch.
19. Apparatus according to claim 18, wherein said rod is apt to be associated to a corresponding control member consisting of a peg which is able to drive it into rotation about a pivot for the connection of the same rod with a corresponding support member.
20. Apparatus according to claim 19, wherein in place of said peg it comprises a cam rotating about an axis parallel to the axis of the punch acting on the rod.
21. Apparatus according to claim 19, wherein in palce od said peg it comprises an actuator cylinder acting on the rod.
22. Apparatus according to claim 7, also comprising means for releasing each stitch from the respective punch.
23. Apparatus according to claim 22, wherein said stitches -releasing means are made up of an element acting on the stitch fitted on the punch, so as to cause a thrust-operated drive thereof towards the free end of the punch, and thus the transfer thereof to the intended knitting member.
24. Apparatus according to claim 22, wherein said means for releasing the stitch comprise a peg rotating about a pivot which connects the peg to the punch, so as to allow the covering of the recess, and thus the release of the stitch from the recess, to be operated under control: said peg being operable by cam means acting sideways on the upper free end of the peg when the punch is driven in the respective longitudinal direction, so as to carry out the covering of the recess through the lifting of the punch determined by the reaction exerted by the knit member onto which it is made to rest and, respectively, the uncovering of the recess through the lowering of the punch upon the predisposition of the latter for the removal of the respective stitch.
25. Apparatus according to claim 22, wherein said means for releasing the stitch consist of a peg with substantially rectilinear axis whose free end is intended to slide adjacent to the corresponding end of the punch, said free end being suitably formed with a rectilinear slot allowing the peg to be moved close to and away from the respective recess so as to operate the covering respectively uncovering thereof, and the free end itself to be inserted inside the stitch thereby enlarging it and allow for its unloading.
26. Apparatus according to claim 25, wherein the free end of said peg is wedge-shaped and laterally ben so as to result oriented towards the punch.

Images