US2285489A - Fastening inserting machine - Google Patents

Description

June 9, 1942. M B, B BLANCHARD 2,285,489

' MSTENING INSERIING MACXCIINE File'd 3, 194 3 Sheets-Sheet 1 June 1 B. B. BLANCHARD FASTENING INSERTING MACHINE Filed May 3, 1940" 3 Sheets-Sheet 2 June 9, 1942. a. B. BLANCHARD- ,489

' FA$TENING INSERTING MACHINE Filed May 5, 1930 5 sheets-sheet 3 AW W 7 in? "M4? WW4 Patented June 9, 1942 new s FASTENING INSERTING MACHINE tion of New Jersey Application May 3, 1940, Serial No. 333,201

6 Claims.

This invention relates to fastening inserting machines and more particularly to machines for forming staples and driving them from the inside toward the outside of the upper of a shoe.

A stapling machine of a usual type is provided with wire feeding and cutting mechanisms and with means for bending the wire into a staple after whiich a driver is operated to insert the fastening into a work piece, the legs of the staple often being clinched against the Work by an anvil or other metal surface. In such machines the staple is normally formed in an upright position with its legs extending downwardly and it is driven downwardly into the work piece which is usually held against the throat or nozzle of the machine by an operator.

Such machines, however, are not adapted for inserting staples into Work pieces where the staples cannot conveniently be driven downwardly and in an upright position either because the work cannot be presented properly to the stapling instrumentalities for such an operation, or because the operator cannot see the work while it is being operated upon as, for example, when it is desired to drive the staple from inside a closed article, such as a shoe, and to have its legs clinched on the outside of the shoe rather than on the inside. Moreover, it is sometimes desirable to insert the staples in an inverted position with the legs projecting upwardly with respect to the work piece in order that the operator may have a clear view of the work or may be better able to control or manipulate the work during the stapling operation.

An object of the present invention is to provide an improved machine of the type under consideration which will avoid the difficulties and disadvantages pointed out above and will be particularly adapted to the uses and purposes men tioned.

To this end there is provided, in accordance with one feature of the invention, an improved stapling machine having a work support arranged to extend inside a closed article, such as a shoe, and support the shoe upper from inside, and mechanism embodied in the work support for, forming staples and driving them from the inside toward the outside of the shoe. An anvil is' provided for clinching the legs of the staples against the outside of the upper and, as herein' illustrated, the staples are formed in an inverted position and are driven upwardly in such position into the shoe upper which overlies the stapling mechanism.

In accordance with another feature of the in- 50 ing rod 36.

inserting instrumentalities, thereby insuring that the anvil will always be in position to clinch a staple when it is driven.

A further feature of the invention comprises an inside former carried by a resilient member,

such as a leaf spring, so mounted that it can be pushed sidewise, after the staple has been formed, thus releasing the staple. As illustrated this former is cammed out of engagement with the staple by the movement of the outside former.

With the above and other objects and features in view, the invention will now be described inconnection With the accompanying drawings and will thereafter be pointed out in the claims.

In the drawings,

Fig. l is a side elevation of a machine embodying the present invention;

Fig. 2 is an enlarged front elevation of portions of the machine including the work support and anvil about to operate on a shoe;

Fig. 3 is a further enlarged view, partly in section, showing a portion of the mechanism after a staple has been driven;

Fig. 4 is an exploded perspective View of the work support and staple forming and driving mechanism embodied therein;

Fig. 5 is a plan View of the work support;

Fig. 6 is a detail view of the outside former as seen from the rear in Fig. 4; and

Fig. '7 is a detail view of the outer end of the inside former as viewed from the opposite direction to that of Fig. 4.

The illustrated machine comprises a frame IE] having journaled in its upper portion a main drive shaft I2 rotated by a pulley M which, in

'40 turn, is driven by a motor I6, the shaft l2 running continuously when the clutch mechanism [8 is operated by depression of a treadle rod 20. The Wire 22 for the staples is supplied from a reel 24 and passes over a roll 26 and through a guide member 28 (Fig. 2), the wire being fed by feed Wheels 31!, only one of which is shown in the drawings.

An upstanding bracket 32 is secured to the frame I!) by a bolt 34 and a forwardly project- This bracket has a laterally extending portion 38 to which is secured by bolts 39 a second bracket All having a lower horizontal portion 42 which extends a substantial distance toward the right, as shown in Fig. 2. This lower portion 42 forms the Work support of the machine and is arranged, as illustrated in Fig. 2, to extend inside a shoe and support the shoe from the inside. Moreover, the work support 42 carries the staple forming and driving mechanisms which are constructed and arranged, in accordance with the present invention, to form the staples in an inverted position and drive them upwardly through a shoe upper from the inside to the outside of the shoe and against an anvil which is moved into clamping engagement with the upper, as will be later explained.

As best shown in Figs. 2 and 4, the work support 42 is provided with a horizontal groove 44 in which is located a flexible coiled wire tube 46 through which the wire 22 passes after it leaves the guide 28. The wire then passes over the top of an outside former 48 mounted to reciprocate vertically in a T-slot 53 formed in the outer or right-hand portion of the support 42, as viewed in Fig. 4. As shown in Fig. 6, the outside former 40 has a horizontal groove 52 in its rear surface and its forward side (Fig. 4) has a heightwise extending staple forming slot or guideway 54 therein.

The outside former is reciprocated in the T- slot 50 by a lever 56 provided at its outer end with a block 58 rotatable on a pin 60, the block being arranged to enter the horizontal groove 52 in the outside former 48 through a slot 62 in the support 42. projecting integral stud 64 at its central portion which extends through a hole '86 in the support 42, the stud being bored lengthwise, as shown at 68 (Fig. 4).

as viewed in Fig. 4, is pivotally connected to an upwardly extending rod I which, at its upper end (Fig. 2), is pivotally secured to the outer end of a cam lever I2. The lever 12 is pivoted on a pin I4 secured in the frame and is provided with a roll I6 which rides in a closed cam track I8 in a cam 80 mounted on the drive shaft I2. Downward swinging movement of the cam lever 12, through rotation of the cam 88, swings the lever 56 about its fulcrum 64 to move the outside former upwardly and form the legs of the staple, as will be presently explained.

The stud 64 on the lever 58 projects beyond the hole 55 in the support 42 and has pivotally mounted on its forward end a lever 82 which carries a knife 84 for severing the length of wire which is to form the staple. The knife is slidably mounted on the end of the lever 82 in a slot 86 by a slide block 88 pivoted on a pin 90 formed integrally with the knife 84. In order to r adjust the knife heightwise with respect to the outside form-er 48, so that the knife will cut the wire just prior to the engagement of the wire by the outside former, the inner or left-hand arm of the lever 82 is provided with a rearwardly extending boss 92 which passes loosely through a hole 94 in the work support and abuts against the inner arm of the lever 55. The lever 56 is provided at this point with a curved slot 08 through which passes a screw 88 which is threaded into a tapped hole I00 in the boss 92. It will be seen that the above construction cause the levers 56 and 82 to operate as a unit about the fulcrum 84 while permitting relative adjustment of these levers to position the knife heightwise with respect to the outside former 43.

The bore 68 in the stud '84 of the lever 56 receives a pin I02 projecting from the central portion of another lever I04 which, at its right-hand end as viewed in Figs. 2 and 4, carries a pin I The lever 56 has a laterally The lever 56 fulcrums about the axis of the integral stud 64 and its left-hand arm,

secured by a screw I05 and arranged to turn in the lever. The free end of the pin I05 is flattened off for clearance and is provided with a projection I03. The pin I08 carries a collar I90 wh ch is also flattened off. The projection I08 enters an opening II2 formed in a tongue on a driver H4, the driver being shaped to fit the slot 54 in the outside former 48 and reciprocate therein. The opposite end of the lever I04 is pivotally connected to an upwardly extending rod II6 (Fig, 2) which, in turn, is connected at its upper end to a driving lever II8 fulcrumed on the pin 14 and normally maintained in its uppermost position by a torsion spring I20. The lever I I8 has a depression I22 in its upper edge which is engaged by a roll I24 secured to the forward surface of the cam 80 by a fixed arm I25. tation of the drive shaft I2, the roll I24 strikes the lever H8 and swings the lever I04 about its pivot I02 to operate the driver II4. Both the rod I0, which actuates the knife and outside former, and the rod H6, which operates the driver, are provided with turn buckles I28 where by their lengths may be adjusted to position the staple forming and driving mechanisms properly with respect to each other.

A shelf or ledg I30 projects from the lower portion of the work support 42 and is provided with a vertical slot I32 in which a clamp or strap I88 is secured by a screw I34. This strap engages a depression I38 in the lever I04 and retains the latter on the work support. It will be seen from positions of the parts illustrated in Fig. 4, that the knife 84 reciprocates in a space provided between the outside former 48 and a substantially right angle block I40 adjustably secured to the forward side of the rear wall of the work support 42 by a screw I4I (Fig. 5). This block I 40 has a vertical tongue I42 on its front surface which fits into a groove I44 in the knife 84 and serves to guide the latter in its reciprocating movement. The outside former is also provided on its forward side; as viewed in Figs, 2 and 4, with an outwardly extending projection I48 having a downwardly and outwardly inclined cam surface I48.

Positioned just above the knife and the outside former 48 as shown in Figs. 2 and 4, is an inside former I50 which is secured to the work support 42 by a screw I52 and extends outwardly or toward the right so that its operative end overlies the outside former 48. The inside former I50 comprises or is carried by a leaf spring which can bend forwardly and rearwardly with respect to the work support. Near its right end the inside former is provided with a rectangular projection I54 which is arranged to overlie the wire 22 and around which the outside former bends the opposite ends of the wire upwardly to form the legs of the staple. The outer end of the inside former comprises a rectangular portion I55 which extends into an opening I58 in the work support 42, thereby supporting the inside form-er against upward pressure exerted by the outside former when bending the wire.

In order to remove the inside former from the path of the staple, the inside former has a forwardly inclined cam surface I60 (Fig. 7) which is arranged to be engaged by the inclined surface I48 on the outside former as the latter moves upwardly while forming the staple. Accordingly, after the legs of the staple have been bent around the inside former, the latter is cammed outwardly by these inclined surfaces to remove the inside a former from the path of the staple, this being Upon rocured thereto by screws I I2 against a fiat surface 2 I14 (Figs. 4 and 5). The late I'IEB has a driver,

' passage I'IIS near its outer end which registers with the slot or guideway 54 in the outside former 48 so that, when the latter is in its elevated position, a continuous passage is provided through which the staple can be driven upwardly into the work piece. The cover plate I carries a work gage I18 which is adjustable lengthwise of the plate to which it is attached by a screw I 80 passing through a slot I 82.

The anvil against which the staples are clinched, and which clamps the work against the work support during the stapling operation, is carried by a swinging leverI84 (Fig. 2) pivoted on a pin I 86 mounted in the bracket 40.

This lever is yoked at its inner end to bridge the bracket 40 and engage the pin I85 at opposite sides of the bracket. The lever I84 is pivotally connected near its central portion to an upwardly extending rod I88 which is provided at 1;

its upper end with a slot I80 through which a stud screw I92 passes and which, in turn, is secured to an extension on the outer end of the cam lever I2 which actuates the outside former.

The screw I 92 is normally maintained at the upper end of the slot I99 by a plunger I94 acted upon by a spring I95 seated in a hole in the rod I88. This construction permits the cam lever 12 to operate to swing the lever I84 downwardly about its pivot I86 and bring the anvil yieldingly against the work, after which the screw I92 will travel to the lower end of the slot I90 and provide a positive support for the anvil during the staple driving and clinching operation.

The anvil I93 is illustrated in Figs. 1 to 3, inclusive, and comprises a downwardly extending presser foot which is longer than it is wide and is provided at its lower end with a pair of cavities 200, 202 (Fig. 3) arranged to clinch the opposite legs of a staple 204 driven upwardly in an inverted position against the anvil. The anvil is preferably formed integrally with a slide 2% secured for transverse adjustment upon another slide 208 by a screw 250. The slide 268 has an inwardly extending portion 2I2 which is adjustably secured in a slot 2H3 in the lever I84 by a bolt H6. The anvil may therefore be adjusted longitudinally and transversely of the lever I84 to position it relatively to the staple forming and driving mechanisms.

In the operation of the machine, briefly sum marized, the operator mounts a shee A on the work support 42, as shown in Figs. 2 and 3, with the outer end of the support extending inside the shoe so that it supports the upper from the inside.

In attaching a bow B, as illustrated in Fig. 2, the

edge of the vamp is brought against the gage I18, with the rest of the upper surrounding the work support. The operator starts the machine by lowering the treadle rod 20 and the wire 22 is fed by the feed rolls the proper distance across the outside former 48, the end of the wire, if necessary, entering a vertical slot 2 I8 (Fig. 4) provided for that purpose in the work support 42. The cam 80 actuates the outside former lever 56 through the rod I0 and with it the lever 82 carrying the knife which operates to cut the wire after which the outside former bends the severed wire around the inside former I54 to form the legs of the staple which thus extend upwardly. Continued upward movement of the outside former cams the inside former out of the path of the staple and, upon the engagement of the outside former with the cover plate I10, completes the driver passage. Simultaneously with the operation of the knife and outside former, the lever I2 lowers the rod I88 and swings the anvil lever I84 downwardly to clamp the anvil I08 yieldingly against the vamp portion of the upper and the bow which is to be secured thereto. It will be noted that both the bow and the vamp of the shoe are in a position where they may be readily seen by the operator. Before the outside former is elevated far enough to engage the plate I I0 and complete the driver passage, the lost motion provided by the slot I in the rod I88 is taken up and the anvil is thereupon held positively against the work piece. The driver operating roll I24 next actuates the lever I I8 which, through the connections already described, operates the driver through the shoe upper and through the bow B, the legs of the staple, as shown in Fig. 3, being clinched against the bow.

By the use of the present machine staples may be readily inserted into a work piece, such as a shoe, so that they are driven from inside the shoe outwardly and are clinched against the outside of the shoe upper.

Although the invention has been herein disclosed in connection with a stapling machine adapted to attach bows or other ornaments to shoe uppers, it should be understood that, in its broader aspects, the invention is not limited to such operations or uses.

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

1. In a machine for fastening shoe parts, a support for a shoe upper provided with a guideway for fastenings, a member movable relatively to said support for clamping a shoe part on the upper in position to be secured thereto by a. driven fastening, a driver for the fastenings, means for operating said drives, means associated with said support for forming fastenings for the operation of said driver, and a single lever for operating both the fastening forming means and said clamping member in predetermined timed relation to the driver to form a fastening and to clamp the shoe part and upper first yieldingly and then to support the clamping member positively against movement out of clamping position during the fastening driving operation.

2. In a machine for fastening shoe parts, a support arranged to extend inside a shoe and to support it from the inside, said support being provided with a guideway for fastenings, a member movable relatively to said support for clamping a shoe part against the shoe upper in position to be secured thereto by a driven fastening, a driver for the fastenings, means associated with said support for forming fastenings for the operation of said driver, said clamping member being arranged to clinch the fastenings in the driving operation, means for operating said driver, and a single cam-operated lever for operating said fastening forming means in predetermined timed relation to the operation of said driver and for H4 to drive the staple upwardly also operating the clamping member to clamp the shoe part against the upper first yieldingly and then positively so that the clamping member is supported against movement out of clamping position during the driving operation.

3. In a machine for fastening shoe parts, a support arranged to extend inside a shoe and to support the shoe upper from the inside, said support being provided with a guideway for fastenings, a member movable toward and from said support for clamping a shoe part against the outside of the shoe upper in position to be attached thereto by a driven fastening, a driver for driving a fastening from said guideway through said upper and shoe part from the inside of the shoe outwardly, said clamping member being arranged to clinch the fastening against the outside of the shoe part in the driving operation, means carried by said support for forming fastenings to be driven by said driver, and camoperated means for operating said. fastening forming means and said driver in predetermined timed relation to each other, and for also controlling said clamping member to clamp the shoe part against the shoe first yieldingly and then to support the clamping member positively against movement out of clamping position during the fastening driving operation.

4. In a machine for fastening shoe parts, a support for a shoe upper provided with a guideway for fastenings, a member movable relatively to said support for clamping a shoe part against the upper for attachment thereto by a driven fastening, a driver for the fastenings, means associated with said support for forming fastenings for the operation of said driver, said clamping member being arranged to clinch the fastenings in the driving operation, means for determining the position of the upper on the support relatively to said guideway, and means for operating said fastening forming means and said clamping member in predetermined timed relation to each other, said operating means controlling said clamping member to clamp the shoe part against the upper first yieldingly and then to support said clamping member positively against movement out of clamping position during the driving operation.

5. In a machine for fastening shoe parts, a support arranged to extend inside a shoe and support it from the inside, thereby being covered by the shoe upper, said support being provided with a guideway for fastenings, a member movable relatively to said support for clamping a shoe part against the outside of the shoe upper for attachment thereto by a driven fastening, a driver for driving a fastening from said guideway through the upper and shoe part from the inside of the shoe outwardly, said clamping member being arranged to clinch the fastening against the outside of the shoe part in the driving operation, and a, member arranged to engage an edge face of the shoe upper to determine its position on the support relatively to said covered guideway.

6. In a machine for fastening shoe parts, a support arranged to extend inside a shoe and support it from the inside, thereby being covered by the shoe upper, said support being provided with a guideway for fastenings, a member movable toward and from said support for clamping a shoe part against the outside of the shoe upper for attachment thereto by a staple, a driver for driving the staple through said guideway and into the upper and shoe part from the inside of the shoe outwardly, said clamping member being arranged to clinch the staple against the outer side of the shoe part, means carried by said support for forming staples adapted to be driven outwardly by said driver, and a gage on the support for determining the position of the shoe upper relatively to the covered guideway, said gage being adjustable relatively to said support to permit the position of the upper to be varied relatively to said guideway.

BENJAMIN BUNKER BLANCHARD.

Images