US2052618A - Fastening inserting machine - Google Patents

Description

Sept. 1, 1936. G. GODDU 2,052,618

FASTENING INSERTING MACHINE .Filed April 25, 1954 Patented Sept. 1, 1936 UiTE STATES FASTENING INSERTING MACHINE George Goddu, deceased, late of Winchester; Mass, by Isabelle W. Goddu, executrix, Winchester, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application April 23, 1934, Serial Nb."1 21,s52,

16 Claims.

This inventionrelates to fastening inserting machines and is illustrated herein as embodied in a machine of the type disclosed in United States Letters Patent No. 1,016,930, granted February 13, 1912, on an application filed in the name of William H. Borden.

Machines of the type disclosed in this patent are extensively used to secure together shoe parts, either temporarily or permanently. Under many conditions it is desirable to present successive portions of the work manually to the operation of the fastening inserting instrumentalities to insert fastenings at such portions of the Work as may be necessary. Under some conditions, for example when securing repair soles to shoes, fastenings are inserted successively along substantially the entire edge of the work and in such cases the work is ordinarily presented or fed manually to the fastening inserting instrumentalities but, to insure that the fastenings will be properly spaced from each other to fasten the parts securely together without inserting an excessive number of fastenings, the operator must exercise considerable care in feeding the work. This manual feeding or positioning of the work'for each successive fastening inserting operation requires considerable skill and care on the part of the operator, and considerable time is expended in properly 7 positioning the work. It is evident, therefore,

thatsuch manual feeding or positioning of the work consumes considerable time with the result that production of work onmachines of this type is substantially reduced.

An object of the present invention is to provide work feeding mechanism particularly adapted for use in machines of the type referred to. To this end one feature of the invention comprises means for feeding a work piece past a fastening inserting means, a distortable member connected between the feeding means and a means for distorting the member while the work is under clamping pressure, the distortable member being constructed and arranged to operate the feeding means when clamping pressure on the work is released. As illustrated, the feeding mechanism comprises a feeding member yieldably held in engagement with the work piece, a lever pivotally mounted on the machine and connected at one end to the feeding member, and a resiliently extensible link connected at one end to the other end of said lever and adjustably connected at its other end to acam operated bell crank lever, the link being constructed and arranged to be placed under tension when a staple is being formed and, when clamping pressureon the work is released (on-am] v after a staple has been driven, to cause the feeding member to feed the work past the nozzle of the machine. 1 1

Other features and objects of the invention will be apparent from a consideration of the following description and claims in connection with the accompanying drawing, in which Fig. 1 is a view in front elevation of a staple inserting machine embodying the present invention; and 10 Fig. 2 is a view: inside elevation of the work feeding mechanism. w l

The present inventionis illustrated as embodied in a machine of the type disclosed in the 5 above-mentioned United States Letters Patent No. 1,016,930; 'The'wire controlling and feeding mechanism of the machine disclosed in thepatent above referred tohas been modified as disclosed in United States Letters Patent No. 1,432,770, granted October 24, 1922, on an application filed in the name Fred L. MacKenzie, and the machine has been provided with a work support of the type disclosed in United States Letters Patent No. 1,852,152, granted April 5, 1932, on an application filed in the name of Louis G. Dingel- '5. dey. Reference may be'had'to the above-mentioned patents for acomplete disclosure of such parts of the machine as it is unnecessary to describe and illustrate herein.

As is usual in machines of this type, the head 2 of the machine is mounted'upon a column 4. A cam shaft 6 is journaled in suitable bearings in the head 2 of the machine and carries cams for operating the fastening forming and inserting instrumentalities of the 'macl iine. A lifter cam 5- v8 is mounted on the forward: end of the cam shaft 6, the cam beingprovided with a portion In which is arranged to engage a projection on a driver bar l2 carrying a, driver l5; When the cam portion I 0 passes from beneath the projection on the 40 driver b'ar H, the driver bar is forced downwardly under the influence of a spring (not shown) to insert fastenings into a work piece.

The illustrated machine is provided with mechanism for feeding staple wire to a fastening forming mechanism. The wire is fed by means of a feeding mechanism of usual type illustrated at M into the path of movement of an outside former 16 carried by a slide l8. The outside former slide'is arranged for reciprocation in ways formed in-the front of the machine and partially surrounds the driver I5. Secured to the upper end of the outside former slide I8 is one arm 20 of a bell crank lever 21. The bell crank lever 2| is made fast to a rock shaft 22 by means of a clamping screw 24. There is also secured to the thus far described are substantially the same as those disclosed in the Letters Patent above referred to. p

A lever arm 28 formed as a part of the bell crank lever 2| is provided with an'arcuate slot 38 into which fits a stud 32 which may be locked in adjusted position by a nut34. Pivoted to the front of the machine by means of a pin 36 is a lever 38 which carries at its upper end a threaded stud 48 which is locked in place on the .arm 38 by.

means of a nut 42. The lever 38 is connected to the lever arm 28 by a heavy spring 44, normally untensioned (Fig. 1) one end of which encircles thestud 48 and the other end of which surrounds a collar 48 mounted on the adjustable'clamping member 32. The spring 44, when untensioned; is stiff enough to act as a link, in either direction of stress. A feeding member48 ispivoted to'the lower end. of the lever 38 by a bolt 53 provided with a nut 55, the upper end of the feeding member 48 being forked, as shown in Fig. 2, to receive the lower end of the lever 38. The work engaging end of the feeding member 48 is bifurcated as shown in Fig. 2, to permit the end of the feeding member to passbeyond anozzle 58 through which staples are driven intothework. It is to be noted that the. bifurcated work-engaging portions of the feeding member'48 are at its upper end to a pin 58 mounted in a laterally extending portion of the lever 38. The spring 56. is under tension and thus tends at .all times ;to force the lower end of the feed member 48 into engagement with the surface of the work.

The spring connection between the lever arm 28 and the lever 38 above referred to is arranged to operate'the feeding -member .48 after a staple has been inserted in thework and clamping pres.- sure on the work has been released. When the machine is put into operation the lever armv28 is moved in a counterclockwise direction, thus forcing the outside former slide I8 downwardly to form a staple about the inside former. -During this .counterclockwise movement of'the lever arm 28, the lever 28 is also rotated in a counterclockwise direction and since thenotched or forkedend of the feeding member 48 is in spurred en-- work, the distorted or tensioned spring 44 will rotate-the lever 38 in a clockwise direction about its fulcrum 36, thus'moving that point of the shoe 62with which the feeding member'48 is in engagement past the nozzle 58 to position'the shoe for'the reception of another staple. After the shoe has been fed, the outside former slide I6 is moved" upwardly to permit another length of staplewire to, be fed forwardly into the path ofsired to change the extent of feeding movement of the feeding member 48 the nut 34-may be r the forming mechanism. When the former slide is moved upwardly the lever arm 28 is moved in a clockwise direction and carries with it the lever 38, since the then untensioned spring 44 acts as a link, thus moving the feeding member 48 5 into its retracted position, as shown in Fig. 1.

The lever" arm 28, as previously stated,'is provided with an arcuate slot 38, in which the member 32 is adjustably mounted. When it is deloosened and the member 32 moved in the slot 38 to thedesired position.' The slot 38 is noncircular with respect to the pivot'48 as center and by adjusting the member 32, as above mentioned, alongthe slot 38 the spring 44 will cause the work to be fed variable distances past the nozzle 58 of the machine. By virtue of this construction, ad-

justment of the stud 32 in the slot 38 will change 'the initial position of the forked end of the feeding member 48. If the stud 32 ismoved toward the rockshaft 22, the lever 38 will be rotated in a clockwise direction under the pull of the spring 44, now acting as a simple link, thus moving the forked endof the feeding member 48 nearer to 25 the nozzle 58. When the arm 28 is thrown' counterclockwise a correspondingly small elongation of the spring 44 will result, since the arcof movement of the stud 32 is small, and'when the work is released and the spring snaps back to its unstressed length a small feeding movement will result. If, on the other hand, the stud 32 is moved toward the lower end of the slot 38, the lever 38 will be pushed by the spring 44,. acting as a link, in the opposite or counterclockwise'direction, thus moving the forked end of thefeed-L ing member 48 farther away from the nozzle 58. In this case, when the arm 28 moves counterclockwise, the spring 44 is stretcheda good deal, and its collapse into unstressed'conditio'n is at-'. tended 'by' a large feeding movement of the spurred member 48. In all cases the feeding movement is proportional to the stretch of the. spring 44. .It is to be noted that lowering of the horn 68 allows the work to be fed past thenozzlei 45; 58 of the machine by the sudden release of tension.

of the spring 44. Y

Although the parts of the machine have been described in detail it may be well at this point briefly to describe the operation of the machine. After the shoe 62 has been placed upon thework support and the horn 68 moved upwardly into? clamping position the clutch of the machine is" tripped, thus causing the main shaft 8 of the machine to rotate. The wire feeding mechanismll4 will then be operated to feed wire H to the right and into the path of movement of the outside former 16. A length of wire is'severed'from'a the wire I! as the outside former is moved downwardly to form the wire about'the inside former 26. During this movement of the outside former Hi, the spring .44. is being stretched but movement of the lever 38 isprevented by engagement of the feeding member 48 with the bottom of the shoe 62 which is firmly clamped between the nozzle 58 G5; and the work support 68. After the staple has been formed the inside former 26 is moved'rearwardly. The projection l8 on the cam 8 then moves from beneath the projection on the driver bar i2, thus permitting the driver bar to bethrust downwardly to drive the staple through the throat or nozzle 58 and into the work. After'the staple has been driven the horn 68 isdepress'edthereby relieving pressure on the work, which will' permit the tensionof the spring 44-to bereleased; 7 51'.

. member connected to said feeding means, and

means for distorting said member while the work is under clamping pressure, a portion of said member being held against the distorting stress by the engagement of the spurred means with the 'work while clamped, saidmember being constructed and arranged to operate the feeding meanswhen clamping pressure on said work is released' 2. In a fastening inserting machine, fastening inserting means, means for feeding the work past the fastening insertingj means, work clamping means, aj resilientj link connected at one end to said feeding means, and means'connected to the other end of'said link'fortensioning it while the 1; work is under clamping pressure, said resilient link beingconstructed and arranged to operate the feeding means uponirel'ease of clamping pressure on the work.

3. In a fastening inserting machine, means for forming fastenings from a length of fastening material, means for inserting fastenings in a work piece, means for feeding the work piece past said fastening inserting means, and means connected to the feeding means arranged to be distorted prior to the fastening inserting operation to operate said feeding means after a fastening is driven.

4. In a fastening inserting machine, means movable to form fastenings from a length of fastening material, means for inserting said fastenings into a work piece, and a member arranged to engage said work piece and to feed said work piece past the fastening inserting means after a fastening has been inserted in the work and before the forming means is returned to its initial position.

5. In a fastening inserting machine, means movable to form fastenings from a length of fastening material, means for inserting said fastenings into a work piece, means arranged to engage the work piece to feed the work piece past the fastening inserting means, and means connected to said forming means and to said feeding means for operating said feeding means after a fastening has been inserted into the work piece and before the forming means is returned to its initial position.

6. In a fastening inserting machine, means movable from an initial position to form fastenings from a length of fastening material, means for inserting fastenings into a work piece, and a member arranged to engage said work piece and to feed said work piece past the fastening inserting means after a fastening has been inserted and before the forming means is returned to its initial position.

'7. In a fastening inserting machine, means for forming fastenings from a. length of fastening material, means for feeding the fastening material to said forming means, a member constructed and arranged to operate said forming means to form a fastening means for inserting a fastening into a work piece, a member arranged-to engage said work piece and to feed'said work piece past the fastening inserting means, and connections between said feeding means and the formingmeans constructed and arranged to move the feeding means, and the work piece in engagement therewith, past the fastening inserting means after a fastening'has been inserted in the work.

8. In a fastening inserting machine, means for inserting fastenings into'a work piece,'me'ans arranged to engage said work piece and to feed said work piece past the fastening inserting means, and a spring connected to the feeding means constructed and arranged to be placed under tension prior to the fastening inserting operation to operate the feeding means after a fastening hasbeen inserted in the work piece.

9. In a'fastening inserting machine, means for inserting staples into a work piece, means for feeding the work piece past the fastening inserting means, and a spring for operating the feed-. ing means constructed and arranged to be placed under tension prior to the fastening inserting operation and to be released to feed the work past the inserting means after fastenings have been inserted in the work.

10. In a fastening inserting machine, means for-applying clamping pressure to a work piece, means for inserting fastenings in said work piece, means for feeding the work past said inserting means, and a member connected to said work feeding means, said member being arranged to be distorted prior to the fastening inserting operation and arranged to return to normal condition when clamping pressure on the work is released after a fastening has been inserted in the work, thereby operating said feeding means.

11. In a fastening inserting machine, means for inserting staples in the work piece, means for operating the staple inserting means, a nozzle through which said staples are driven, a support for the work constructed and arranged to apply clamping pressure to the work between successive feeding movements of the work, a member arranged to engage the work, and a spring connected to said member constructed and arranged to be placed under tension prior to the insertion of a staple and, when pressure on the work is released, to move said member to feed the work past the inserting means.

12. In a fastening inserting machine, means for applying clamping pressure to a work piece between successive feeding movements of the work, a driver for inserting staples into the work, means for feeding the work past said driver, a resilient link connected at one end to said feeding means, and operating means connected to the other end of the link constructed and arranged to place said link under tension when clamping pressure is applied to the work, thereby causing the link to operate the feeding means when clamping pressure on the work is released.

13. In a fastening inserting machine, an inside former, an outside former, means for operating said outside former to form a staple about said inside former, a driver for inserting staples into a work piece, a nozzle through which the staples are driven, a work support arranged to clamp the work against said nozzle between successive feeding movements of the work, a feeding member arranged to engage the work, and a spring connecting said feeding member to said outside former operating means, said spring being constructed and arranged to be distorted whena staple ".is, being formed and, when returning 'to normal condition after a staple has been inserted and clamping pressure on the WOIk' re1eased,-to operate said feeding means to feed the work past said nozzle.

14.--In a fastening-inserting machine, a driver forinserting the staples into a work piece,-a nozzle through which the staples are driven by the driver, a work support arranged to clamp the work,- against the nozzle between successive feeding movementsof the work, a feeding 'member yieldingly held in engagement with the work, a lever pivotallyv mountedon the machine and secured at one end to said feeding member, a spring connectedrto the other end of said lever, and meansrconnected tosaid spring constructed and arranged to tension the spring before a staple is driven, said spring operating,v when'clamping pressure on the work is released after a staple has been driven, to move'said feeding memberto feed the work past said nozzle.

15. Ina fastening inserting machine, a-driver for inserting staples into a work piece, a nozzle through which said staples are'driven by said driver a work support arranged to clamp the work against said nozzle between successive feed-; ing movements of the work, a work feeding member' spring-urged into engagement with the work,

an operating lever pivotally mounted on the ma.-

chine and pivotally connected at one end to said feeding member, a spring connected to the other end of said zlever,zand means connected to said spring constructed-and,arranged, to tension said spring, said spring operating, a when clamping pressure on the workis released after the staple has been driven, to move said feeding member through said lever to feed the work past the nozzle.-. i., r

16. .In a fastening inserting machine, an inside former, an outside former, a; cam-operated bell cranklever constructed and arrangedto operate the outside former to formstaples from a length ofstaple wire, a driver for inserting staples into a work piece, .a nozzle through which the staples are, driven by the driver, a work support constructed andarrangedtoclamp the work against the nozzle between successive feeding movements of the work, a feeding member yieldingly held in engagement with the work, a lever pivotally mounted-eon the machine 'and' secured at one endv to said feeding member, and .a spring connected to the other end of said lever and adjustably connected to said cam-operated bell crank lever.

whereby fee-ding movement of said feeding member'maybe varied, said spring being, constructed and 1 arranged to'be placed under tension when a staple is being' formedand, when clamping pressure on the Workis released after a staple has been driven,"to operate saidfeeding member to,

feed the work past the nozzle} "f jlSABELLE w. GODDU, Executrix of the Will of George Goddu, Deceased.

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