US1271721A - Eyeleting-machine. - Google Patents

Description

W. SHAW.

EYELETING MACHlNE.

APPLICATION FILED MAR.8, 1915.

Patented July 9, 1918.

2 SHEETS-SHEET I.

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W. SHAW.

EYELETING MACHINE.

APPLICATION FILED MAR. 8, 1915 1 ,271 ,721 Patented July 9, 1918-. Y

2 SHEETS-SHEET 2.

WALTER SHAW, OF DEDHAM, MASSACHUSETTS,

TO UNITED SHOE MACHINERY CORPORATION,

PORATION OF NEW JERSEY.

1 area.

ASSIGNOR, BY MESNE ASSIGNMENTS,

EYELETING-MACHINE.

Specification of Letters Patent.

Patented July e, was.

Application filed March 8, 1915. Serial N 0. 12,877.

To all whom it may concern:

Be it known that I, VALTER SHAW, a citizen of the United States, residing at Dedham, in the county of Norfolk and State of Massachusetts, have invented certain Improvements in Eyeleting-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the .several figures.

This invention relates to improvements in machines for setting eyelets or similar fastening devices and particularly to machines for setting blind or invisible eyelets.

In one of its aspects the invention contemplates improvements in the machine disclosed in application Serial No. 859,632, Kenway, filed September 1, 1914, in which there is disclosed an expansible upsetting die arranged to be passed through the work in a contracted condition and then expanded into the proper shape for upsetting the eyelet barrel. As herein shown the upsetting die comprises a number of relatively movable sections. These are arranged in contact with each other in the normal contracted condi-- tion of the die but when the latter is expanded narrow open spaces occur between the adjacent sections. In the upsetting operation it is important that the lines of division or splits in the eyelet barrel shall not occur in such locations as to permit any portion of the eyelet barrel to pass through between the sections of the die without being acted upon by the upsetting surface.

With these conditions in View, an important feature of the present invention consists in the provision of an expansible setting die comprising relatively movable sections,.each section having means for splitting an eyelet barrel at a point located between the open spaces of the expanded die. By. employing a die of this construction each section of the split eyelet barrel is acted upon by two sections of the expanded die. Consequently the portion of the barrel opposite the open space between the sections of the die will follow the direction of the bending imparted by the die sections to the remainder of the split'sec tion of the barrel. Another advantage incident to this construction is that the eyelet barrel is split into uniform sections so that the shape of the clenched end is rendered symmetrical and the clenching of uniform character.

In machines employing an expansible upsetting die as heretofore constructed the operative or upsetting position of the expansible die has been determined by a member OF PETERSON, NEW JERSEY, A COR- which engaged the upper end of the die and which for this purpose was passed through the superposed portion of the upper. Another important feature of the present invention consistsin novel means arranged to act upon that side of the work from which the die is inserted for determining the upset,-

ting or operative position of the die. An

advantage incident to this construction is that the limit of movement of the die with respect to the work may be determined and the possibility obviated of the die being advanced into the outer portion of the upper after the clenching operation. This has sometimes occurred in machines of this type as heretofore constructed and is objection- I able in that it tends to enlarge the hole in the outer part of the upper and also to delay the operation of the machine. An advantage incident to the construction herein shown is that the setting die, which is necessarily of.

delicate construction, is relieved of the pressure and strain which would be incident to the control of its position by pressure upon its expansible end. It also renders possible an accurate adjustment of the upsetting position of the die with respect to the work being operated upon and this is of considerable importance in view of the fact that-uppers are frequently encountered provided with stay strips, doubling cloth or other intermediate layers of materials, the presence or absence of which affects the thickness of the work in which'it is desired to clench the eyelet.

Still another feature of the invention consists in arranging the means for controlling Y es ment further relieves the pressure upon the expansible portions of the die and the con trolling means may be constructed to act at a point where the structure of the die renders it better suited to stand the strain.

As herein shown the upsetting die is expanded by being brought into engagement with a tapering member which is moved into "the work from the side opposite to that upon which the expanding die is located. Itis desirable, in order to spare the die as much as possible, to reduce the impact of engagement of these two members to a minimum.

To this end another feature of the invention consists in so operating these members that they come into substantial engagement while they are moving in the same direction. In the illustrated embodiment of the invention this result is secured by imparting to the expanding member a temporary retreating movement during the advance movement of the upsetting die and at a less speed than that of the upsetting die.

Another feature of the invention consists in the provision of an expansible setting die having a passage extending through its center portion-by which the fine pieces of material, chips, or other material loosened in the operation of the machine may pass away from the expansible portion of the die thereby avoiding clogging of the same. This feature of the construction is important because any obstruction lodging between the sections of the expansible die would prevent the contraction thereof so that the die could not be passed through the barrel of an eyelet preparatory to the setting operation.

It is desired in setting blind eyelets boots and shoes to form in the outer part of the upper a hole of the smallest practical diameter to permit the passage of the lacing and in many cases a hole of less diameter than the eyelet is desired. In this connec;' tion another feature of the'invention con-- sists in provision of novel punchlng mechanism by the useof which the holein the pertion in which the eyelet is to be set may be formed with a greater diameter than the concentric hole formed in the superposed portion of the upper.

Heretofore this has i been possible only by the employment of oppositely disposed abutment' This abutseparate punches of difierent diameters. As herein shown, however, a punching mem her having an abrupt taper is located on that side of the work from which the eyelet'is to to be inserted and the work is punched by being'engaged between this punch and an ment, being located above the work and having a diameter approximating that of Y the punch, helps the operatorin locating the Work with respect to the machine so that. be may accurately determine theflposition in which a fastener will be inserted.

These and other features of the invention of the machine in further detail.

will be best understood and appreciated from the following description of' a preferred embodiment thereof selected for purposes of illustration and shown in the acin its expanded position with an eyelet par-' tially clenched;

Fig. 5 is asectional view of the punching members; I

Fig. 6 is a fragmentary view of part of the upsetting die and'its associated stop;

Figs. 7 to 13 illustrate the successive steps of the punching"- and eyeleting operations and disclose the construction of certain parts For purposes of illustration the invention is shown as embodied in the well-known universal eyeleting machine, shown substan-,

tially in United States'Letters Patent No. 603,023, Field, but it will be apparent that any other eyeleting machine would serve the same purpose.

The machine frame 2 is provided with 'a stationary work table 4 and with a bearingmember 6 in which reciprocates the plunger 8. The eyelet carrying or inserting die 10 is adjustably mounted in the upper end of the plunger 8 while at its lower end the plunger carries a cam roller-14 to which motion is imparted by a rotary cam 12 secured to the mam shaft 9. As shown in Fig. 7

the'die 10 is shouldered and rests upon an adjustable supporting nut 11 threaded into a I theplunger 8 and maintained in adjusted position by a locking nut 13. A presser foot 31 of the usual construction is provided for holding the work in place-upon the table 4.

The upsetting die 16 is movably' mounted w thin t e die 10 being provided with a shank 18 and a head 20 on its lower end beneath which is located a compression spring 22 tending always to maintain the upsetting die in an elevated position. The upper portion of the upsetting die is of suitable diameter to be passed through the barrel of an eyelet presented thereto by a raceway 30. The upsetting-surface is formed just below the upper end of the die where the latter is contracted and then flared outwardly. It

- will be understood thatthe eyelet is passed 'shown in Fig. 2, and that the die is subsequently expanded so that itsupsetting surface is of the proper shape to clench the eye- 'let barrel when the eyelet is forced upwardly against it.

In order to insure the splitting of the eyelet barrel into symmetrical sections and at points located between the spaces of the sections of the expanded die each of the die sections is provided with a sharp rib or corrugation 17 as shown in Fig. 3. When the eyelet barrel, therefore, is forced upwardly these ribs act to split it as shown in Fig. 4.

In inserting invisible eyelets the two portions of the upper which have previously been punched are held by the work table 4 in alinement with and above the upsetting die 16 and the latter is then elevated until its upsetting surface has been passed substantially through the lower or lining portion 90 of the upper as indicated in Figs. 11 to 13. In order to determine this upsetting position of the die 16 there is'provided an adjustable stop piece 24 having its upper end arranged to project through a slot in the plunger 8 and to engage the shank 18 of the upsetting die above its head 20 as shown in Fig. 6. The stop piece is frictionally 26 upon which is adjustably secured a nut 28 arranged to engage the lower surface of the stationary bearing member 6 when the stop piece 24 has been lifted to a predetermined position. In the downward move- 1 ment of the plunger 8 the upper end of the slot therein engages the top of the stop piece 24 and depresses it to its'lowest position as shown in Fig. 7. In the upward movement of the plunger 8 the.stop piece is elevated by the action of the spring 22 until the nut 28 encounters the surface of the stationary bearing member 6 whereupon the upward movement of the stop piece and the upsetting die is positively arrested at a predetermined point detefmined by the setting of the nut 28. It will be seen that this construction afl'ords convenient and accurate means for-controlling the operative position of the upsetting die.

As shown in Figs. 6, 7 and 11 the upsetting die 16 has a hole drilled entirely through its center portion for the purpose of affording a passage for chips or other obstructions which might become lodged between the relatively movable sections of the die.' This passage opens above the center of the spring 22 in the plunger 8 and the latter may be cleaned of the accumulation deposited through the passage as often as necessary.

The upsetting die 16 is expanded by a pin 32 having at its lower end a conical portion shaped to enter the hole in the, upper end of the upsetting die and to act uniformly on the sections'thereof in expanding the die. The pin 32 is adjustably and yieldingly maintained in the head of a lever 34 by means of two filling pieces 36 and 38. The upper piece 36 is threaded into the lever 34 and at its lower end is provided with a recess for 'the reception of a compression spring 40 which bears against the head of the pin 32. At its lower end the piece 36 is internally threaded to receive the upper end of the piece 38 and thev set screw 42 is provided for locking the latter in adjusted position. The pin 32 may be adjusted downwardly by loosening the set screw 42 and screwing the filling piece 36 downward, together with the lower filling piece 38. A

look nut 37 is provided for maintaining the piece 36 in the proper adjusted relation to the lever 34. The initial position of the pin 32 may bevaried independently of the bodily adjustment just described by screwing the lower filling piece 38 upwardly into the filling piece 36. The best results are secured by so adjusting the position of the V pin 32 that the compression of thespring 40 is sufficient to hold the pin 32 in its 'dle ex pa-nding position when the head of the lever 34 is depressed. With such adjustment the pressure upon the upsetting die in the expanding operation is limited to that which is merely suflicientto overcome the resiliency of the die sections.

When embodied in a high speed machine the upsetting die 16 and the expanding pin 32 are likely to come intoengagement with considerable impact and in order to reduce this to a minimum the pin 32 is arranged to be initially projected entirely through both portions of the upper as shown in Figs. 9

and 10. When the upsetting die is elevated the pin 32.is moved upwardly but at a slower speed so that the two come into substantial engagement while they are both moving in the same direction. The pin 32 is thereupon moved slightly downwardly to effect the expanding operation. By this mode of operation-the impact of the two members is rendered so slight as to be unobjectionable.

The lever. 34, which carries the expanding pin 32, corresponds to the topset lever of the machine of Patent No. 603,023 above identified. The motions required for moving the pin 32 in the manner above set forth are imparted. to the lever 34 by cams on the rear end of the shaft 9 similar to those I shown in said patentbut shaped in accordance with the requirements of the present inventlon.

f Preliminarily to the insertion of the eye .let the work is punched at one side of the setting position by mechanism which will now be described. The-work plate 4 is slotted to permit the passage of a tubular punch.

50 fast in the forward end of a lever 52. The punch 50 is moved toward the right to an inoperative position prior-to the feeding operation and then back to its initial position during the feeding operation. At its upper end the punch is abruptlytapered as shown in Fig. 5 so that the hole formed in end of a lever 60 arranged tooscillate at the right hand side of the lever 34.- This abutment has a diameter which. approximates that of the punch-and, being located above the work, assists in the-ready location of the work with respect to the machine. Furthermore, the position of the abutment is adjusted in response to an adjustment of the length of feed so that its adjusted position always accurately represents the point at which the next eyelet will beset. The position of the punch is also adjusted so that it will always co-act with the superposed abutment. In order to strip the work from the punch after the punching operation a collar 56 is arranged to surround the upper end of the punch and is normally maintained in its elevated position by a compression sprmg 54.

The usual operation of the machine above described may be stated as follows: The upper comprising a lining portion 90 and an outer portion 92 is presented upon the work table 4 with the point at which the first eyelet is to be' set located between the punching members 50 and 58. The initial position of the various parts is shown in Fig. 7. When the machine isstarted the abutment member 58 is at once depressed and both portions of the work forced down upon the punch 50 as shown in Fig. 8. The abutment member 58 is immediately elevated and the stripper 56 lifts the work off the punch. The punching members and the die expanding pin 32 are thereupon moved to the rightand the pin is depressed to enter and pass entirely through both portions ofv the work as shown in Fig. 9. The feeding operation is then effected by the transverse movement of the pin 32 toward the left, the. punching members being meanwhile re.-. .turned to their initial position.- The position of the punching and setting instrumen-' than the diam acts to arrest the upward movement of the upsetting die. This occurs when the up setting surface is located in position to direct the clenched end of the eyelet barrel outwardly between the two portions of the upper as shown in Fig. 11. The lever 34 is then depressed slightly to move the pin 32 into its die expanding positlon as shown in Fig. 12. The continued u ward movement of. the eyelet inserting set 10 then forces the eyelet upwardly clenching its barrel against the upsetting surface and beneath the outer portion 92 of the upper as shown in Fig. 13

At the conclusion of the setting operation the expanding pin is lifted allowing the upsetting die to contract whereupon the parts are restored to their initialpositions in readiness for a repetition of the cycle.

, Having thus described my invention, I claim as new and. desireto secure by Letters Patent of the United States:

1. In an eyeleting-machine, an expansible setting die comprising relatively movable. sections, each section having means for splitp ting an eyelet barrel at points located between the open spaces of the expanded die.

2. In an eyeleting machine, an expansible upsetting die having sharp edges formed by intersecting concave surfacesand'. disposed v for longitudinally splitting an eyelet barrel.

3. In an eyeleting machine, an expansible upsetting die havlng outwardly disposed splitting edges normally contracted to less means for expanding the die prior to the setting operation. a

4. In an eyeletin machine, an expansible upsettin die having outwardly disposed longitudinal splitting ed es, and means for after t has been passed expanding the. die into a hole in the work.

'5. In an eyeleting machine, an expansible- .115 each provided between its longitudinal edges with 'a longitudinally.

upsetting d1e"comprismg a plurality of resilient sections,

disposed splitting projection.

6. In an eyeleting machine, an expansible" upsetting 'di'e'comprising a plurality of relatively movable sections each having a sharp rib spaced from its edges, and means for separating the sections.

"ter of .theeyelet barrel, and" In an eyeleting machine, an expansible setting die yielding means for expanding .125 the die, an positively acting means for limdie-expanding means.

8. In aneyeleting machine, an expansible.

setting die, yielding means for expanding the die, and adjustable means for limiting the pressure exerted in the expanding operation.

9. In an eyeleting machine, an expansible setting die comprising relatively movable sections, and means for splitting an eyelet barrel so that eachseotion of the barrel is acted upon by two sections of the die.

10. In an eyeleting machine, a work support, a movable eyelet inserting set and an upsetting die both initially located on the same side of the work as the support, and means disposed below the work'support for determining the setting position of the upsetting die.

11. In an eyeleting machine, anexpansible upsetting die, a combinedfeeding and die expanding member, and independent means for controlling the operative position of the upsetting die.

12. In an eyeleting machine, a punch, a feed member arranged to enter the punched hole, an expansible upsetting die arranged to be expanded bythe feeding member, and stationary means for controlling the operative position of the upsetting die.

13. In an eyeleting machine, means located on one side of the work for punching and feeding the same, cooperating dies both located initially on the other side of the work for insertin and upsetting an eyelet, and a. device in ependent of the feeding means for controlling the operative position of the upsetting die. I

14. In an eyeleting machine, a reciprocatory plunger carrying relatively movable inserting and upsetting dies, and a stationary stop arranged to project into the plunger "to arrest the movement of one of the dies while the other continues to move.

15. In an eyeleting machine, an expansible die and a die-expanding device arranged for relative movement, and means independent of the die-expanding device for limitin such relative movement.

16. 11 an eyeleting machine, an expansible' die, a die-expanding device movable into operative engagement therewith, and means for limiting the pressure of engagement.

17. In an eyeleting machine, an expansible upsettin die, and a die-expanding device arrange for simultaneous movement in the same direction but at difierent speeds, where by they may be brought into engagement with slight impact.

18. In an eyeleting machine, eyelet setting tools, and a work feeding member constructed and arranged to be inserted in the work preparatory to the feeding operation hole in the lining portion larger than that in the outer portion, and means for inserting,

' an eyelet in the larger hole and clenching it upon the lining.

22. In an eyeleting machine, a tapered punch movable toward the lining side of an upper to punch both the lining and the outer portions thereof, and means for presenting an eyelet from the lining side of the upper.

23. In an eyeleting machine, a tapered punch movable to form a conical hole in the superposed portions of an upper, and an expanding upsetting die movable into the large end of the hole.

24. In an eyeleting machine, a tapering punch for perforating both the leather and lining parts of an upper from the lining side, thereby forming a larger hole in the lining than in the leather part, an upsetting die movable through one part of the upper, and an eyelet inserting set constructed and arranged to insert an eyelet through the lining.

25. In an eyeleting machine, an eyelet inserting die having a spindle centrally located and shaped at its upper end to constitute an upsettin die, and means acting on the lowerend o the spindle to determine the setting position thereof.

26. In a machine for setting fasteni devices, a work support, a tubular punc located below the plane of the work support, a cooperating solid abutment of similar cross-sectional dimensions located opposite to the punch and above the work support,

, sald punch and abutment being constructed port, work feeding means, an expansible upsetting die arranged to enter the work upon the support from the lower side of the work, and means for positively preventing upward movement of the upsetting die at the con clusion of the setting operation.

29. In a fastener insertin machine, a tubular punch and a co-actmg abutment having a diameter approximating that of the punch disposed on opposite sides of the work, with the punch on the lower side of the work, said tools being constructed and arranged for movement into co-acting relaone of said tools being arranged for lateral adjustment with respect to the machine, 15

when the spacing between successive fasteners is varied.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WALTER SHAW. Witnesses:

HERBERT W. KENWAY, WILLIAM B. KING.

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