US1341763A - Eyeleting-machine - Google Patents

Description

F. A. RUMNEY.

EYELETING MACHINE.

APPLICATION FILED DEC.22. 1916.

1,341,763. PatentedJune 1,1920.

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FRED- A, RUMNEY, or CAMBRIDGE, MASSACHUSETTS, nssienoa, BY MESNE' ASSIGN- MENTS, T0 UNITED SHOE MACHINERY CORPORATION, or PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY,

EYELETING MAfil-lINE.

Specification of Letters-Patent.

Patented-June 1, 1920.

Application filed December 22, 1916. Serial No. 138,384.

T 0 all whom it may concern: I

Be it known that I, FRED A. RUMNEY, a citizen of the United States, and resident of Cambridge, in the county of Middlesex 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.

The present invention relates to improvements in machines for setting blind or invisible eyelets and is herein shown as embodied in an eyeleting machine of the character disclosed in Letters Patent of the United States No. 1,205,277, granted November 21, 1916, on an application of Walter Shaw, although itsapplication is'not limited to this or to any other particular type of eyeleting machine.

Prior to the introduction of power 1112:.- chines for setting blind or invisible eyelets it was the custom to employ upsetting dies having a concave upsetting surface shaped to embrace and form the entire portion of the eyelet barrel which was rolled over in clenching; that is to say, the surface of the upsetting die controlled the path of movement of the end of the eyelet barrel during the entire operation. In designing a power operated machine which would punch the shoe upper and insert the invisible eyelet at one operation, itwas found impractical. to introduce between the lining and the outer part of the upper a complete or perfect upsetting die. Consequently it was proposed to mutilate or to modify the upsetting die by reducing its dimensions in such a direction as to facilitate its introduction and pre sentation to the required position between the lining and the outer part of the upper. A power operated machine of one type for performing this work is disclosed in Letters Patent of the United States No. 1,143,741, granted June 22, 1915, on an application of A. B. Wales. As shown in that patent the upsetting die is modified by thinning it so that it may be inserted edgewise between the parts of the upper. In other words, the upsetting die is reduced in that dimension which would facilitate its introduction between separated layers of the work. The

present invention relates to power operated machines of the type wherein the upsetting die is modified by being reduced diametrically, the upsetting surface instead of con- An object of the invention is to provide,

in an eyeleting machine having a clenching tool formed with a clenching shoulder reduced in diameter as aforesaid, means for punching a hole of adequate size to enable the barrel of the eyelet to enter readily, so

:that the eyelet will not force the eyelet-re ceiving material beyond the clenching shoulder. Furthermore, an object is to provide improved means for sustaining the clenching tool against the pressure of the eyelet, to the end that the reduced clenching shoulder will occupy the desired plane at the moment of clenching, so that the clenching tool will cooperate accurately with the inserting tool without being affected by adjustment of the punch.

The invention is illustrated, for convenience, as being embodied in a machine organization similar in some respects to that disclosed in Letters Patent No. 707,644 granted August 26, 1902 on an application filed by me. An important difierence, however, between that disclosure and the present is that, according to the latter, the means punch and punch-bed by which thework is perforated to receive theeyelet. Thefeatures of the invention will be best understood and appreciated from the foltration and shown in the accompanying drawings, in which Figure 1 is a view in perspective of a portion of the machine;

Fig. 2 is a similar view in side elevation;

Figs. 3 to 6 inclusive are views in front elevation, with parts broken away indicating successive positions of the machine parts during one cycle, and V Fig. 7 is a view in perspective of the upsetting die.

The machine frame 2 is provided with vertical bearings for a plunger 4 arranged to be reciprocated by a cam 6. The lower setting or eyelet carrying die 8 is adjustably mounted in the upper end of the plunger 4 and is provided with a yielding central spindle 10' of the usual construction. A raceway 7 is mounted upon the machine frame for movement into and out of the path of the bottom of the lower set 8 for the purpose of supplying eyelets thereto, as will be readily understood.

Journaled in the machine frame 2 is an oscillatory carrier 14 in which is mounted a punch carrying lever 12. The lever 12 is arranged to be oscillated vertically toward and from the plane of the work and also transversely for feeding the work in the manner fully disclosed in the patent to Shaw No. 1,205,277. The construction and mounting of the punch is best shown in Fig. 3 from which it will appear that the punch is a cylindrical shouldered tube which, in the form illustrated, is composed of two parts. Its transverse position is determined by one of these parts formed as a tubular stud 16 threaded into a bore in the forward end of the lever 12 and having its bore reduced at the lower end. The stud 16 is pro vided with a lock nut 20 by which its adjustment is maintained. An adjustable bearing piece 22 is threaded into the upper end of the bore in the lever 12 and acts rigidly to support the punch. The upper end of the punch is maintained in engagement with the bearing piece 22 by a set screw 24 threaded into one side of the lever 12, but if it becomes loose it cannot drop out of the carrier because of the reduced bore of the part 16.

The punch cooperates with a hardened cutting block 26 mounted upon the machine frame and arranged to occupy a slot in the work plate 28. A presser foot 30 is arranged to engage the work plate at a position in front of the cutting block, being lifted intermittently during the operation of the machine to permit the feeding operation to take place. The feeding operation 1s effected by the transverse movement of the punch while in engagement with the punched hole in the work, as will be presently described.

The upsetting die is maintained in an oscillatory carrler arranged to swing about the axis of a stationary stud 32 set in the machine frame at the rear of the work plate 28. The stud 32 is surrounded by a sleeve 34 formed integral with or otherwise attached to an arm 36 extending forwardly and terminating in alinement with the path of the lower setting die. A compression spring 38 surrounds the sleeve 34 and, bearing against the under side of the arm 36, tends to elevate the latter. The upward movement of the arm 36 is limited by a cap plate 40 secured to the top of the stud 32 by a screw 42. The arm 36 has a rearwardly extending projection 44 in which is set an adjustable stop screw 45. The stop screw 45 normally bears against a station ary stud 46 projecting downwardly from the rear end of the cap plate 40. The spring 38 which elevates the arm 36 is connected at its lower end to an adjustable collar 48 on the stud 32 and at its upper end to the arm 36, being wound under tension so that it tends normally to swing the arm 36 toward the right, as seen in Figs. 3 to 6.

At its outer end the arm is provided with dovetailed ways to receive an undercut plate 50 from the lower side of which projects the shouldered upsetting die 52. The plate 50 is removably held in place by a screw 54 threaded into the end of the arm and passing at its end into an aperture in the plate 50. The end of the arm 36 is recessed at its upper right hand side to receive the reduced end of the punch 18 during the setting opera tion, this recess being of such a depth that the cutting end of the punch cannot touch the plate 50 when the-shoulder formed by the tubular face of the stud bears against the upper end of the arm 36. A spring stripper plate 56 is secured to the under side of the arm 36 and provided with an aperture to surround the upsetting die 52.

The setting die 52 is of slightly greater diameter in its body 'part than the punch 18, but it may be forced easily into the hole formed by the punch. It is provided with a concave setting shoulder forming an in complete upsetting surface of the character fully disclosed and broadly claimed in the co-pending application of Henry T. Doulett, filed August 1, 1914, Serial No. 854,483. In locating the upsetting die 52 in operative position its shoulder is passed through the uppermost layer of the work under the control of a suitably constructed cam operatively connected to the lever 12 and will be so positioned as to clench the end of the eyelet barrel upon the concealed surface of the lower layer or layers. In the acompanying drawings the outer or leather portion of a shoe upper is indicated by reference character 90 and the lining portion by reference character 92. It will be understood, however, that the lining portion of an upper is frequently made up of two or more layers of sheet material, such for example as a textile lining part and a leather stay strip.

Having described the construction and arrangement of the mechanism which constitutes one embodiment of the invention, its operation will now be briefly described. The machine comes to rest with the punch 18 elevated and the set 8 in its lower position, as shown in Fig. 1. When it is desired to set invisible eyelets in a shoe upper the upper is placed upon the work table 28 with its outer or leather part uppermost and the point at which the first eyelet is to be set located beneath the punch 18. The machine is then set in operation whereupon the punch immediately descends perforating both parts of the work. The punch is then retracted very slightly to release the pressure upon the cutting block 26 and is then moved toward the left carrying the punched hole into line with and above the lower set 8 to which an eyelet is delivered by the raceway 7. Fi 4: represents the punch in position at the end of its feeding movement and it will be seen that in this movement the side of the punch encounters the arm 36 and swings the upsetting die toward the left to an inoperative position. The presser foot 30 is elevated during the feeding operation but at its conclusion immediately descends and holds the work in place upon the table 28. The punch 18 is now elevated suiiiciently to permit the arm 36 to re-assume its normal position in line with the lowerset, as clearly shown in Fig. 5. The punch 18 is then lowered, and by reason of the engagement of the shouldered part 16 with the top of the arm 36, forces the upsetting die downwardly in advance until its upsetting shoulder is located exactly in operative position between the layers of the work. Meanwhile the lower set is elevated and the end of the eyelet barrel is forced through the lining part 92 of the upper and is clenched upon its'concealed surface, as shown in Fig. 6. The pressure of the eyelet against the clenching shoulder is sustained by the abutment 16, and although this abutment, in the illustrated machine, is carried by the same lever that carries the punch it may be adjusted without disturbing the adjustment of the punch. Finally the punch 18 and the lower set 8 disengage the work which is still held by the presser foot, and return to their initial positions, as shown in Figs. 1 and 3 in readiness for a repetition of the cycle.

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

1. In a machine for setting blind or invisible eyelets, eyelet-setting mechanism including a setting tool having a setting shoulder to enter a hole in a layer of the work, and work-punching mechanism including a punch movable relatively to the setting tool,

and means adjustable relatively to the punch and arranged to move the setting tool so as to place the setting shoulder in the punched I hole and between the two outer faces of the work.

3; In a machine for setting blind or invisible eyelets, a punch carrier and a setting die arranged to move relatively to each other, a punch carried by said carrier, said die having a setting shoulder to enter a hole in a layer of the work and said punch being arranged to punch a hole in the work to receive said shoulder and the barrel of an eyelet, means independent of said punch for causing the setting shoulder of said die 7 to move through the hole in said layer, and

means arranged to co-act with said die to clen'ch an eyelet against said shoulder.

4. In a machine for setting blind orinvisible eyelets, setting mechanism including an inserting'tool and a clenching tool, the latter having a setting shoulder formed and arranged to enter a hole in a layer of the work, a punch and a carrier therefor movable relatively. to the clenching tool, and

an abutment carried by said carrier to sustain the clenching tool against the pressure of the eyelet, said abutment being adjustable relatively to the punch.

5. A machine for setting invisible eyelets, having, in combination, a punch and a punch-carrier movable to perforate the outer and lining parts of a shoe upper, and a shouldered upsetting die reduced in diameter to facilitate its introduction through the punched hole, said upsetting die being movable transversely beneath the punch af ter the punch is withdrawn from the punched work, and means carried by the punch-carrier and adjustable relatively to the punch to force the shoulder of the die through the outer part of the upper only.

6. In a machine for setting blind or in visible eyelets, work-clamping means, a carrier movable independently of said means, a setting die having a setting shoulder to enter a hole in the work, said carrier and said die having cooperative undercut portions to permit assembling and separating them by relative transverse movement, and means to fasten the die in cooperative relation to the carrier.

- the other end of the bore of the carrier.

8. In a machine for setting blind or invislble eyelets, setting mechanism lncludmg an inserting tool and a clenching tool, the

latter having a setting shoulder formed and arranged to enter a hole in a layer of the Work, a punch and a carrier therefor movable relatively to the clenching tool, and an abutment carried by said carrier to sustain the clenching tool against thepressure of the eyelet, said punch being adjustable independently of the abutment.

9. In a machine for setting blind or invisible eyelets, setting mechanism including an inserting tool and a clenching tool, the latter having a setting shoulder formed and arranged to enter a hole in a layer of the Work, a punch and a carrier therefor movable relatively to the clenching tool, and an abutment carried by said carrier to sustain the clenching tool against the pressure of the eyelet, the punch and the abutment being adjustable independently of each other.

arranged to enter a hole in a layer of the Work, a punch and a carrier therefor movable relatively to the clenching tool, and a tubular abutment carried by'the carrier and surrounding the punch to sustain the clenching tool against the pressure of the eyelet, said punch and the tubular abutment being relatively adjustable.

11. An eyeleting machine comprising a tubular punch and a carrier therefor, a punch-block, an eyelet-inserting tool, an eyelet-clenching tool relatively to Which the punch is movable to punch and feed the Work, and an abutment carried by said carrier and adjustable relatively to the punch to sustain the clenching tool at the moment of clenching the eyelet.

12. An eyeleting machine comprising a tubular punch and a carrier therefor, a punch-block, an eyeletinserting tool, an eyelet-clenching tool relatively to Which the punch is movable to punch and feed the Work, and means arranged to sustain the clenching tool at the moment of clenching the eyelet, said means and the punch being relatively adjustable so that, as between the punching couple and the eyelet-setting couple, an adjustment of one Will not affect the other.

In testimony whereof I have signed my name to this specification.

FRED A. RUMNEY.

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