US1859421A - Fastening inserting and trimming machine - Google Patents

Description

y 1932- R. B. WOODCOCK 1,859,421

I FASTENING INSERTING AND TRIMMING' MACHINE Filed Feb. 7, 1951 2 Sheets-Sheet 1 //Vl/EN TUEL May 24, 1932. R. B. WOODCOCK FASIIEININGv INSERTING AND TRIMMING MACHINE Filled Feb. 7, 1951 2 Sheets-Sheet 2 Patented May 24, 1932 UNITED STATES PATENT OFFICE REGINALD BOYD WOODCOCK, F LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY FASTENING INSERTING- Am TRIMMING MACHINE J Application filed February 7, 1931, Serial No. 514,215, and in Great Britain March 15, 1930.

shoes and at the same time trimming surplus material from the marginal portions of the.

soles, although it is to be recognized that the invention may be embodied in machines for use in performing other operations.

Machines are well known for inserting nailsaround the heel ends of the soles of shoes to secure the outsoles to the insoles and overlasted portions of the shoe uppers and simultaneously to trim the surplus material from the marginal portions of the'outsoles thus reducing the outsoles substantially to the desired outline at their heel seats. Mechanism for carrying out this dual operation is disclosed for example in Letters Patent of the United States No. 1,139,727, granted May 18, 1915, on an application of William T. B. Roberts. The spacing of metallic nails inserted in the heel seats of shoes is ordinarily about three-eighths of an inch. Any distance much greater would result in insufiicient fastenings' while any distance much less would cause unnecessaryand objectionable metal to be put into the shoe. The trimming mechanism of the Roberts patent above referred to was developed particularly for embodiment in fastening inserting machines of the type disclosed in Letters Patent of the United States No. 490,624, granted January 24, 1893, on an application of Louis Goddu, in which the work is fed step by step by means of an awl, one step corresponding to each nail inserted. After each step of feeding movement the sole portion of the shoe is forced upwardly against the pressure plate or abutment of the machine while a nail is driven. The result of feeding the work in this way has been to cause the trimmed edge of the sole to take the form of a broken line, simulating a portion of the periphery of a many sided polygon, rather than a smooth curve following the outline of the heel end of the last on which the shoe is made. This necessitates either further trimming of the edge of the sole or heavy scouring in later stages of the manufacture of the shoe.

It is an object of the present invention to provide an improved fastening inserting and trimming machine adapted for use in attachmg soles to shoes which will accomplish more accurate trimming ofthe sole than that outlined above. Accordingly, the oscillating knife of the illustrated machine, which constitutes a preferred embodiment of-the invention, is arranged to make a plurality of oscillations between the insertion of each two successive fastenings, thus. causing the perlphery to which the sole is trimmed to approach sufficiently close to a smooth curve to obviate all practical difiiculties on'that score.

With the above objects and features in I indicating the relationto each other of the fastening inserting and the trimming operations.

The fastening inserting mechanism of the illustrated machine is of the character disclosed in the above-identified Goddu Patent No. 490,624 to which reference may be had for a full disclosure of such portions of the machine as it has been found necessary to illustrate and describe herein. This machine which is well known to shoe manufacturers and and is commonly spoken of as a loose nailing machine is provided with a stationary head 10 mounted on a suitable column 12 (Fig. 2) and having bearings for a main cam shaft 14 (Fig. 1) upon which are mounted cams operating many of the moving parts of the machine. Mounted for oscillating movement about the cam shaft 14 substantially at the front of the machine is a swinging head 16 having sliding'contact with supporting hearings or brackets 18 carried by the stationary head 10 and engaging the peripheral portion of the swinging head 16. Mounted for vertical reciprocating movement in the swinging head 16 is a driver bar 20 having a driver 22 secured to its lower end and an awl bar 24 to the lower end of which is clamped an awl 26. The driver bar 20 with the driver 22 and the awl bar 24 with the awl 26 are reciprocated vertically in proper timed relation once during each cycle of operations of the machine and the head 16 is oscillated about the cam shaft 14 once during each cycle of operations so that the awl 26, after it has been thrust into the'work piece, illustrated as a shoe 28 having an insole 30'to which an outsole 32 is being attached by nails 34 inserted adjacent to the periphery ofthe heel seat portion of the sole, feeds the work piece between the insertion of the different fastenings. As illustrated, the shoe 28 is carried by a work supportorjack 86, the sole' of the shoe being forced upwardly by suitable pressure applying mechanism of a wellknown character against the presser plate or abutment 38 of the machine at the time each fastening is inserted, and released during the feeding movements. As is usual in machines of this character nails are fed from .a suitable hopper down a raceway 40, a separator 42 (Fig. 1) being provided at the lower end of the raceway 40 to control the transfer of fastenings from the raceway 40 to the driver passage of a throat member 44. The separator 42 of the machine illustrated in the Goddu Patent No. 490,624 is reciprocated transversely of the raceway once during each cycle of operation of the machine, thereby transferring a'nail to the driver passage so that a nail is inserted in each awl hole after the awl has been withdrawn at the conclusion of the feeding portion of its cycle.

The illustrated machine is provided with an oscillating knife 50 for trimming surplus material from the peripheral portion of the sole, the knife 50 being operated constantly by mechanism of the character disclosed in the above-identified Roberts Patent No. 1,139,727. As described more fully in that patent the knife 50 is oscillated with a shaft 52 by mechanism indicated herein generally at 54, suitable adjusting means for the knife being provided as disclosed in detail in the Roberts patent. The knife 50 cooperates with-a shear plate 56 carried by the presser plate or abutment 38, cutting the sole with a shearing action. Preferably a gage 58 is provided adjacent to the oscillating knife 50 in position to engage the shoe upper adjacent to the sole thereby controlling the position of the trimming cut and the width of the extension left upon the sole. In the illustrated machine, as in the machine of the Roberts patent, .the knife 50 is constantly operated when the machine is in operation.

In order, in accordance with the present invention, to obtain more feeding steps than there are fastenings inserted, the separator 42 is reciprocated only once in a plurality of cycles of operation of the machine, as illustrated once in two cycles. For this purpose a cam 60 (Fig. 1), mounted on a shaft 62 carried by a bracket 64 secured to the head 10 of the machine, is rotated by a gearing 66, 68, once during every two rotations of the cam shaft 14. Suitable connections are provided between the cam 60 and the separator 42 including a lever 72 fulcrumed at 74 to the head 10 of the machine and carrying at its lower end the separator 42. A spring 76 tends to forcethe upperendvof the lever. 72 rear- Wardly thereby thrusting theseparator 42 forwardly. Secured to the upper end of the lever 72 is an extension 78 which bears against a push rod 80 the rear end of which engages a socket in an arm-82 pivoted at 84 to the head 10. This arm 82 carries a roll 86 contacting with the cam 60. The form of the cam 60 is such that with this arrangement the separator lever 7 2 is rocked to cause the separator 42 to transfer a nail from theraceway 40 to the driver passage only in alternatecycles of operation of the machine.

In Fig. 1 the machine parts are shown in the positions they occupy at the conclusion I of a nail inserting operation. The cam 60 is rotated inthe direction shown by the arrow in Fig. 1 and during the next cycle ofv operation of the machine will not operate the separator lever 72 since the portion of the cam from the point shown as engaged bythe roll 86 is flat over half its periphery, as far as the point indicated at 88 in Fig.1, 3 v

During the following cycle of operation parts of thecamincluding the sloping por- I tions 90, 92, 94 will move the roll86 forwardly and will operate the separator lever 72 in the normal manner to separate a nail from the raceway 40 and to transfer it into the driver passage of the throat member 44.

The workfeeding mechanism operates in the usual manner, once, for each revolution of the main cam shaft 14. \The work is thus fed by the awl through two steps between the insertion of successive nails. The mechanism,

indicated generally at 96 (Fig. 1) by which the length of the feeding movement of the awl 26 is adjusted, is set to give approximately half the normal feed, for example threesixteenths of an inch, so that thenails are spaced the usual distance apart. The awl 26 will of course make a hole in the work indicated at 100 (Fig. 3) between each two successive nails 84 but this is of no consequence since the heel seat will invariably be covered by a heel attached at a later stage in the manufacture of the shoe. Since the awl is not caused to penetrate all the way through the work there will be no marking of the interior of the shoe at places not occupied by nails.

The reduction of the length of each feeding step applied to the work allows a trimming device of the type disclosed to trim the edge of the sole in what is substantially a smooth curve following the lasted heel seat, while the insertion of a nail only after alternate feeding steps maintains the usual spacing of the nails around the heel seat.

Having described my invention, what I claim as new and desireto secure by Letters Patent of the United States is 1. A machine for inserting sole attaching fastenings into shoe parts and for trimming surplus material from the marginal portions thereof having, in combination, fastening-inserting instrumentalities, an oscillating knife for trimming surplus material from a shoe part presented to the fastening-inserting instrumentalities, and means for feeding the work in a plurality of steps between the insertion of successive fastenings.

2. A heel seat fastening and trimming machine having, in combination, means for inserting fastenings in the heel seat portion of a shoe to secure the outsole to the insole and to the overlasted portion of the upper of the shoe, an oscillating knife for trimming surplus material from the marginal portion of the heel seat of the sole of the shoe, means for oscillating the knife, means for feeding the work intermittently past the fastening inserting means, and means for operating the fastening-inserting means constructed and arranged to insert only one fastening for a plurality of feeding movements of the work.

3. A machine for driving sole attaching fastenings into the soles of shoes and for trimming surplus material from the marginal portions of the soles of the shoes having, in combination, fastening-driving instrumentalities, an oscillating knife for trimming surplus material from the sole of a shoe presented to the machine, means for oscillating the knife, means for feeding the work intermittently past the oscillating knife and the fastening driving instrumentalities, said means being constructed and arranged to impart a plurality of feeding movements to the work between the insertion of successive fastenings.

4. A heel seat nailing and trimming machine having, in combination, means for driving nails into the heel seat portion of a shoe to secure the outsole to the insole and to the overlasted portion of the upper of the shoe, an oscillating knife for trimming surplus material from the marginal portion of the heel seat of the sole of the shoe, means for oscillating the knife, an awl for feeding the work to and past the nail driving means, and means for operating the nail-driving means constructed and arranged to insert only one nail for two feeding movements of the awl.

5. A machine for inserting fastenings in and trimming surplus material from shoe parts having, in combination, a throatmemer provided with adriver passage through which to insert fastenings in a work piece pre in each cycle of operation and to operate the fastening-supplying means in only one of several successive cycles of operation of the machine.

I 6. A machine for inserting fastenings and trimming surplus material fromshoe parts having, in combination, fastening-inserting instrumentalities including an awl and a fastening-inserting tool, means for operating the awl to form fastening-receiving holes in the shoe and to feed it to and past said tool, means for supplying fastenings for insertion by said tool including a separator constructed and arranged to present fastenings one by one in the path of said tool, means for reciprocatplus material from one of the shoe parts, and means for operating the separator to feedfastenings into the path of said tool immediately prior to only one of several successive strokes of the driver.

7. A machine for inserting fastenings in and trimming surplus material from shoe parts having, in combination, a throat member provided with a driver passage, a driver reciprocable therethrough to insert fastenings in a work piece presented to the throat member, a raceway conducting fastenings to the throat member, a separator constructed and arranged to control the passage of fastenings from the raceway to the driver passage, an awl constructed and arranged to penetrate the work and to feed the work past the throat member, a knife, arranged to trim the surplus material from the margin of one of the shoe parts in which the fastenings are inserted, and cyclically operating means for the awl, the driver, theseparator and the oscillating knife constructed and arranged to operate the awl once in each cycle of operation and to operate the separator only in a1- ternate cycles of operation of the machine.

8. A machine for inserting nails in and trimming surplus material from shoe parts having, in combination, nail-inserting instrumentalities including an awl and a driver, means for operating the awl to form nailreceiving holes in the shoe and to feed it to and past the driver, means for supplylng nails for insertion by the driver including a ing said tool to insert the fastenings in the; shoe parts, an oscillating knife to trim sur-V raceway and a separator constructed and arranged to transfer fastenings one by one from the raceway into the path of the driver, means for reciprocating the driver to drive the nails 5 into the shoe parts, an oscillating knife to trim surplus material from one of the shoe parts, and means for operating the separator to feed a nail into the path of the driver immediately prior only to alternate strokes of the driver. v

9. A machine for inserting sole attaching fastenings into shoe parts and for trimming surplus material from the marginal portions thereof having, in combination, a swinging head, an awl carried by said head and Operating to feed the work upon movement of said head, means operating .to cut away portions of the work during movement thereof as it is fed by the awl, a fastening inserting driver, and means for supplying fastenings to the driver immediately prior to only one of several feeding movements of the awl.

10. A machine for inserting sole attaching fastenings into shoe parts and for trimming surplus material from the marginal portions thereof'having, in combination, a swinging head, an awl carried by said head and operating to feed the work upon movement of said head, means operating to cut away portions 80 of the work during movement thereof as it is fed by the awl, a fastening inserting driver, and means for supplying only one fastening to the driver for a plurality of feeding movements of the awl.

11. A machine for inserting sole attaching fastenings into shoe parts and for trimming surplus material from themarginal portions thereof having, in combination, a swinging head, an awl carried by said head and operat- 40 mg to feedwork upon movement of said head,

an oscillating knife for trimming surplus material from the work during movement thereof as it is fed by the awl, a fastening insert ing driver, means for supplying fastenings for insertion by said driver including a separator constructed and arranged to present fastenings one by one in the path of said driver, and means for operating the separator to feed a nail into the path of the driver immediately prior only to alternate feeding movements of the work.

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

REGINALD BOYD VOODCOGK.

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