US1919740A - Edge setting machine - Google Patents

Description

July 25, 1933. A. R. MORRILL EDGE SETTING MACHINE Filed April 15, 1930 5 Sheets-Sheet r JwnHUI P HHHHHHHHHHHHHHHH H l July 25, 1933. A R MORRlLL 1,919,740

EDGE SETTING MACHINE Filed April 15, 1930 5 Sheets-Sheet 2 July 25, 1933.

A. R. MORRILL 1,919,740

EDGE SETTING MACHINE Filed April 15, 1930 5 Sheets-Sheet 3 y 1933- A. R. MORRILL EDGE SETTING MACHINE 5 Sheets-Sheet 4 Filed April 15, 1930 July 25, 1933. M L V 1,919,740

EDGE SETTING MACHINE Filed April 15, 1930 5 Sheets-Sheet 5 Patented July .25, 1933 units s'm rss PATENT OFFICE ALFRED "a. MORRILL, or BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED snon MACHINERY conronarron, or rar'nnson, new JERSEY, A CORPORATION OF JERSEY EDGE SETTING BIAGHINE -App1ieatien filed April 15, 1930. Serial No. 444, l01.

The present invention relates toedgesetting machines and is herein disclosed as em bodied in an automatic edge-setting machine of the type in which'the shoe and the edgesetting devices are moved'relatively to transoperation.

vtion are particularly adapted for use in an automat c machine of the type herein dlsclosed, certain features are not so limited but are applicable to edge-setting machines generally.

The principal object of the present inveni tion is to facilitate the edge-setting operation in the manufacture of shoes, and to enable this operation to be preformed in an accurate and reliable manner to produce satisfactory and uniform results without :2 the use of skilled labor.

The present invention is designed pri-' marily as an improvement on the edge-setting machine disclosed in the patent to lopham No. 1,616,717 dated February 8,

1927, and another object of theinvention is to render machines of the type disclosed in this patent more completely automatic in Other objects of the invention are to improve the construction and arrangement of the edge-setting tool or tools of an edge-settingmachine with a View to rendering them more efficient in operation and more readily substituted, one for the other, where it is desired to use different shaped tools on the forepart and shank portions of the sole respectively.

lVith the above objects in view, the present invention consists in the devices, combinations and arrangements of parts herein described and claimed which, together with. the advantages to be obtained thereby, will be readily understood by those skilled in the art from the following description, taken in connection with the accompanying drawings in which 1 is a view infront elevation of an automatic edge-setting machine embodying the several features of the invention; Fig.2 is a plan View of the machine with parts broken away to show more clearly portions of the mechanismfor 'interchanging the edge-setting tools and for moving the shoe outwardly at the end of a the edge setting operation to relieve the pressure of the tool on the sole edge; Fig, 3

1s a view in right side elevation of a portion of the machine; Fig. 4 is an enlarged view in front elevation of a portion of the machine; Fig; 5 is a detail sectional view taken, on the line 5-6 of Fig; 4; Fig. 6 is a sectional plan View taken onthe line of Fig. 5; Fig. 7 is a sectional plan View taken on the line 77 of Fig. 5; Fig 8 is a detail view,'looking from the rear, of the tool holder, illustrating particularly the cam path forming a portion of the means by which-the tool holder is actuated to. sub-' stitute one tool for the other; Fig. 9 is a perspective viewof the bracket in which the ieating unit for the tools is'secu're'd; and

Fig. 10 is a detail sectional View illustrating the manner in which the tools are mounted in'the tool holder;

The machine illustrated in the drawings, as embodying the several features of the present invention is an automatic machine of the type illustrated and described in the patent to Topham No. 1,616,717 above re ferred to, which type of machi'iie' comprises suitable tools for performing an edge-setting operation progressively along the bottom margin of a lasted shoe, a Jack upon which the-shoe is supported, and means for auto matically controlling the movements of the ack so that no manual manlpulation of the shoe by the operator is required during the operation.

i The jack of the machine illustrated in the drawings comprises heel and toe supports 12 and 14 which are supported upon a vertical spindle 16 and which are actuated to clamp a lasted shoe autoi'n'atically' in proper position on the-'jack' when the shoe is placed upon the jack by the operator and which are automatically actuated at the conclusion of the edge setting operation to unclamp the shoe. This jack is the same in construction and mode of operation as the jack disclosed in applicants prior Patent No. 1,689,594 dated October 30, 1928. During the edge-setting operation, the jack is moved in the direction of feed and is rotated to transfer the point of operation about the shoe from the heel breast of the shoe at one side to the heel breast at the other side, and simultaneously tipping movements are imparted to the jack to compensate for the transverse and longitudinal curvatures of the tread surface of the shoe sole. To enable thejack to be so actuated,

it is mounted in the machine in the same manner as the jack of applicants prior patent above referred to, and'is acted upon by mechanism constructed, arranged and operated as the corresponding mechanism of the machine of said patent.

Briefly stated, the ack supporting structure comprises an arm 18 in the forward end of which the lower end of thejack spindle 16 is rotatably mounted by means of a gimbal joint, a support 20 upon which the arm18 is mounted to swing vertically, and a frame 22 pivotally mounted at its lower end inthe machine base so as to be capable of swinging about a horizontal axis and upon which the support 20 is mounted to swing about a substantially vertical axis. The mechanism for moving the ack in the direction of feed, for rotating the jack and for imparting tipping movements to the jack, comprises a vertical pattern cam shaft 24 upon which a series of pattern cams 26 are mounted, and connections from the cam shaft to the jack and jack-supporting structure comprising the feed lever 28 connected by the link 30 to the toe portion 14 of the jack, the cord 32 passing around a wheel mounted in the forward end of the arm 18 and connected through the gimbal joint to the jack spindle 16, and cam levers 36 and 38 connected respectively-to the frame 22 and support 20. The cam shaft 2 1 is driven through nearly a complete revolution during the edge-setting operation on a shoe, whereupon an auxiliary mechanism is thrown into operation which moves the jack out of operative position toward the front of the machine, and the rotation of the cam shaft is continued to rotate the ack in a reverse direction to its original position. During this reverse rotation of the jack the heel and toe supports 12 and 14 are relatively actuated to unclamp the shoe from the jack. The mechanisms for actuating and controlling the jack during the edge-setting operation, for moving it outwardly at the conclusion ofthe operation, for I reversely rotating it to its original position and for unclamping the shoe, are fully illustrated and described in applicants prior patent above referred to, to which reference may be had for a full disclosure of the parts not indicated on the drawings.

In the edge-setting machine disclosed in the patent to Topham No. 1,616,717 above referred to, the jack is yieldingly supported so as to be capable of a vertical rising and falling movement and is yieldingly pressed inwardly towards the edge-setting tools, the vertical. position of the ack with the shoe thereon being determined by a work support or crease guide engaging the crease between the sole and upper of the shoe. The inward or transverse position of the jack and shoe is also determined by this work support or crease guide, and in order to permit the edge-setting tools to act properly on the sole edge, they are yieldingly mount ed in their actuating holder. In the present machine, the sole edge is pressed yieldingly directly against the tools, no crease guide or other guide or support being provided to control the inward movement of the shoe towards the tools. Accordingly the tools can be unyieldingly mounted in a sim ple manner in their actuating holder. Also, in the present machine the vertical position of the jack and shoe is determined by a guide or hold-down arranged to bear against the tread surface of the sole and limit the upward movement of the ack which, in the present machine, is yieldingly pressed upwardly to maintain the tread surface of the sole in engagement with this hold-down guide. This construction causes the sole edge to be presented accurately to the tools 1 at the proper height throughout the entire edge-setting operation. As illustrated in the drawings, this sole guide or hold-down is in the form of a small roll 40 mounted on a. horizontal stud 42 projecting from a cover plate 44 rigidly secured to the front lower portion of the overhanging arm of the machine head. The stud 42 is located directly above the tool which is in position to operate upon the sole edge and the roll engages the tread surface of the sole of a shoe presented to the tool a short distance in from the edge of the shoe sole in line transversely of the direction of feed with the point of contact of the tool. The roll is 6 thus adapted to engage the breast of the heel of a shoe at the beginning and also at the end of the edge-setting operation and act as a guard to prevent contact with and consequent injury to the breast of the heel by the tool. Also the roll acts as a guide cooperating with the breast of the heel to determine accurately the position of the shoe in the machine at the beginning of the operation.

An edge-setting tool is indicated at 46. As illustrated, there are two of these tools, one for operation on the shank and the other for operation on the forepart of the shoe sole. These tools are mounted in a holder 48 which in turn is mountednpon an actuating carriage 50'. The carriage 50'is' pivotally mounted at its rear end upon vertica'lly aligned pivot pins 52 and is provided in its upper surface with 'a slot engaged by a roll 54 upon a crank pin 56 projecting from the lower end of the vertically arranged armature shaft 58 of an electric motor' 60'. This motor mounted in the overhanging arm-of the machine head and through the connections described imparts a rapid vibratory movement to the actuating carriage and to'the tools 46;

To enable the tool holder 48 to be readily adjusted so as to bring either tool 46 into a osition to oaerate u on the sole ed e of a shoe supported on the jack and to cause the toolholder to vibrate with the actuating carriage 50, the tool holder is mounted upon the carriage by means of vertical pivot pin 62 projecting downwardly from the carriage 50, and is provided at its rear end with a vertically arranged segmental surface 64 concentric with the axis of the pivot pin 62 andpassing through the'axis of the aligned pivot pins 52 of the carriage 50. The surface 64is provided with a cam slot 66 and this c'amslot is engaged by a pin at the forward end of an arm 68 pivoted at 70 upon the machine frame; The arm 68'extends through a slot 72 in the rear wall of a projection from theoverhanging head of the machine frame and is held securely against horizontal movement. The pin at the forward'end of arm 68 also intersects the axis of the pivot pins 52 of the actuating carriage 50 so that the point of engagement of the pin with the groove is always in line with this axis, and thus the tool holder 48 is caused to vibrate in unison with the actuating carriage and no relative movement of the tool: holder with relation to the carriage V is produced so long as the arm 68 remains at rest. A-ve'rtical movement of the arm 68, however, moves the tool holder 48 with relation to the carriage 50 and the shape of the cam groove 66 is such that a movement of the forward end of the arm 68 from one end of the cam groove to the other adjusts the tool holder so as to move one tool out of operative position and the other tool into operative position. It willbe noted that the tools 4.6 are arranged in the same horizontal plane, which plane is that occupied by the sole edge during the edge-setting operation. The adjustment of the tools takes place in thisplane and accordingly the interchange of the tools can be made-without removing the shoe from contact with the tools and if desired, during the continued operation of g the machine. I

Automatic edge-sett ng machines have heretofore been provlded with interchangeable forepart and shank edge-setting tools Such. interchangeable tools are illustrated upon a vertical shaft 82 which shaft is and described in the patent to Topham hereinbefore referred to. In that machine, how

ever, the interchange ofthetools was effected manually and it was necessary to stop the machine before such interchange could be made. Also, it was necessary to move .the

tools towards and from the shoe in a direcranged,through suitable connections, to ac tuate the arm 68. These connect1ons comprise a cam actuated lever 76, a link 78 connecting one end of the lever 76with an arm provided with an arm 8% connected by a link 86 to the vertical arm of a bell crank 88, the horizontal arm of which is'connected by a link 90 to the arm 68.

The interchange of the tools andparticularly the automatic interchange of the tools, as above described, is facilitated by reason of-the'fact that the working faces of the tools, as bestishown in Fig.7, are equally distant from the pivotal axis of the tool holder and i are curved-about this as a center. The

uponthe pattern cam shaft 24 and is ar-' faces of the toolscan, therefore, slide along the edge of the shoe sole during the interchange of the tools and the face of the inoperative tool will be brought into engageface of the operating tool leaves the sole. The interchange of the tools canthus be made smoothly and evenly during the continned edge-setting operation without any ment with the edge of the sole before the appreciable additional transverse movement of the shoe and without any liability of injury, to the-sole edge.

As has been stated,'in the present machine the sole edge is pressed yleldingly directly against the tools while the vertical position of the shoe is determined by a guide bearing against the tread surface of the sole. As the point of operation is transferred around the shoe, the shoe is tipped both longitudinally and transversely in'order to compensate for the curvature of the shoe sole, and present the trimmed surface of the soleedge in. a po sition to be pressedagainst evenly by the edge-settingtools. To facilitate the seating of the tools against the sole edge, and to insure an accurate and even engagement of the tools with all parts of the trimmed sur-. face, the tools are preferably mounted so as to be capable of a slight movement intheir' holder in a direction normal to] the. tread surface of the sole. A construction to accomplish this result is shown in Figs. 5, '6, 7, and 10 in which each tool is, shown as piovided with a vertical rib 92 projecting rearwardly and centrally from its body por tion. This rib is received in a vertical slot in the forward end of the tool holder 18. The tool is free to slide up and down in this slot and is prevented from falling out of the slot by a ledge 9d at the bottom of the slot and by a pin 96 projecting laterally "from one side of he rib 92 into a vertical slot 98 in the tool holder-48. The inward thrust of the shoe against the tool is resisted by the rear suino of the body portion of the tool at each side of the rib 92, which si'lrtace en gages the surface at the forward end of the tool holder at each side of the slot which receives the rib. For operation on certain configurations of sole edge, as for instance that indicated by the face of the tool in Fig. 10, the rear surface of the body portion of the edge-setting tool may be curved, as indicated in the figure, to allow a slight rock-. ing movement of the tool about a horizontal axis parallel to the sole edge and located slightly in front of the face of the tool.

The edge-setting tools of the machine illustrated in the drawings are heated, by means of a sn'iall heatin plate 100 located in close proximity to the tools'directly beneath the tool holder 48. This plate is electrically heated by current supplied through suitable loads, as indicated in the drawings, and is supported on a suitably shaped brackct 102 secured to the downwardly extending portion the overhanging head of the machine fl rame; As illustrated, the bracketlOZ is substantially U-shaped and is secured by means of screws passing through slots 10% in the arms of the bracket. At its forward end this bracket is provided with inturned ianges 106 engaging corresponding longiludinal grooves 108 in the sides of the heating plate so that the plate may be readily removed if desired.

In automatic machines of the type illustrated in the drawings, an auxiliary mechanism is thrown into operation at the conclusion oi the operation around the margin of the shoe, which auxiliary mechanism moves the jack out of operativeposition and then completes the rotation of the cam shaft to rotate the jack in reverse direction to its ori inal position. in such machines there is a slight dwell in the movement of the shoe at the conclusion oi the operation on the shoe and it has been found, in the operation oi an edge'setting machine such as that illustrated in the drawings of the present application, that this dwell is likely to cause a slight imperfection in the sole edge on account of the continued contact of the edge-setting tool with the sole edge while the shoe is at rest.

Accordingly, the machine illustrated in the drawings has been provided with means acting at the conclusion of the edge-setting op eration to move the shoe outwardly so as to disengage the sole edge from the tool. This meanscomprises a plunger 110 arranged to move in a substantially horizontal direction transversely to the sole edge and to engage the sole edge at one side of the tool. The

plunger is in the form of an arm pivotally mountedat its rear end upon the upper end or a swinging arm 112 and supported at its forward end by a bolt 11a projecting from the downward projection of the overhanging head of the machine frame.

ctuated at the conclusion of the edge-setting operation from the pattern cam shaft 2st through a portion of the connections which utilized in throwing in the stop motion to stop the cam shalt. To this end the arm 112 is connected by means of a link 116 to one end of a lever 118, see Fig. 2. This lever is pivotally mounted on the machine frame and extends over a roll 120 carried by a pivoted arin 122 which is arranged to be enigcd by astopping projection 124 secured to a gear wheel on the cam shalt 2i. The arm 122 is pivotally mounted upon a bell crank 126 corresponding to the bell crank 576 of the machine disclosed in applicants prior Patent No. 1,689,594.

The nature and scope of the present invention having been indicated, and an embodiment of the several features of the invention having been specifically described, what is claimed is: i

1.-An edge-setting machine having, in combination, two edge-setting tools arranged to act successively on ditl erent parts of the sole edge o'l a shoe and a shoe supporting jack relatively movable to transfer the point of operation of the tool along the sole edge of a shoe supported on the jack, and means acting automaticallyduring the continued operation of the machine to interchange one tool for the other at a predetermined point in the operation while maintaining at least one tool in contact with the sole edge. i

2. An edge-setting machine having, in combination, two edge-setting tools arranged to act successively on dillerent parts of the sole edge of a shoe and a shoe supporting jack relatively movable to transfer the point of operation of the tool along the sole edge of a shoe supported on the jack, and means acting automatically during the continued operation of the machine to interchange one tool for the other at a predetermined point in the operationwhile main taining both tools in the plane of the sole.

3. 2mi edge-setting machine having, in combination, an edge-setting tool, a yieldingly mounted shoe supporting jack movable to transfer the point of operation of the The arm 112 is combination, an edge-setting tool, a

tool along the sole edge of a shoe supported on the-jack and also movable about an axis passing through the point of operation of the tool to compensate for the curvature'of the: tread surface of the shoe sole, and a guide mounted in a fixed plane bearing against the tread surface of the sole in line with the'tooltranversely of the direction of feed to maintain the sole adjacent the point of operation 'in the proper plane with relation to the tool. I

4. An edge-setting machine having, in combination, an edge-setting tool, a yieldingly mounted jack movable to transfer the point of operation along the sole edge of a shoe supported on the jack and movable transversely of the direction of feed to press the sole edge against the tool and also movable about an axis passing through the point of operation of the tool to compensate for the curvature of the tread surface of the shoe sole, and a guide mounted in a fixed plane engaging in tread surface of the sole in line with the tool transversely of the direction of feed to maintain the portion of the sole adjacent the point of operation in the proper plane with relation to the tool.

5. An, edge-setting machine having, in combination, an edge-setting tool and a shoe supporting jack relatively movable to trans fer the point of operation of the tool along the sole edge of a shoe supported on the jack from the breast of the heel on one side to the breast of the heel on the other side,

' and a guard arranged to engage the breast of the heel of the shoe and prevent contact with the breast of the heel by the tool.

6. An edge-setting machine having, in 7 jack longitudinally movable and rotatable to transfer the point of operation of the tool around the sole edge of a shoe supported on the jack from the breast of the heel on one side to the breast of the heel on the other side, and a guard arranged to engage the breast of the heel at the beginning and end of the edge-setting operation and prevent conltact with the breast of the heel by the too. I

7. An edge-setting machine having, in combination, an edge-setting-tool, a yieldingly mounted shoe supporting jack movable to transfer the point of operation of the tool along the sole edge of a shoe supported on the jack, and a guide mounted in a fixed plane bearing against the tread surface of the sole to maintain the sole adjacent the point of operation in the proper plane with relation to the tool, and arranged to engage '60 the breast of the heel and prevent contact with the breast of the heel by the tool.

8. An edge-setting machine having,,in combination, an edge-setting tool, a jack longitudinally .movable and rotatable to transfer the point of operation ofthe tool around the sole edge of a shoe supported on the jack, and movable transversely of the direction of feed to press the sole edge against the tool, and a guide engagin the tread surface of the sole in line transversely of the direction of feed with the point of contact. 7

of the tool to maintain the portionof the sole adjacent the point of'operation in the proper plane with relation to the tool, and arranged to. engage the breast of the hee at the beginning and end of the edge-setting operation and prevent contact of the tool with the breast of the heel.

9. An edge-settin machine having, in

the machine to interchange one tool for the other.

10. An edge-setting machine having, in combination, a plurality of edge-setting tools, a pivotally mounted actuating carriage for the tools, a tool holder pivotally mounted on the carriage on an axis parallel to the axisof the carriage and adjustable about its pivotal axis to interchange the tools, and a tool holder adjusting member engaging the tool holder at a point in line with the pivotal axis of the carriage and acting when moved to adjust the tool holder.

11. An edge-setting machine having, in combination, a plurality of edge-setting tools, a pivotally mounted actuating carriage for the tools, means for imparting vibratory movement to the carriage, a tool holder pivotally mounted on the carriage and adjustable about its pivotal axis to interchange the tools, said holder having a surface concentric with the pivotal axis of the holder and passing through the pivotal axis of the carriage, a cam formed on said surface, and a tool holder adjusting member engaging said cam.

12. An edge-setting machine having, in

groove and adjusting member being ar-v ranged so that their point of engagement is 'at all times in line with the pivotal axis of the carriage and a movement of the adjust ing'member adjusts the tool holder to interchange the tools.

13. An edge-setting machine having, in

combination, an edge-setting tool and a shoe supporting ack relatively movable to transfer the point of operation of the tool along the sole edge of a shoe supported on the 5 jack, and a tool holder provided With a slot extending in a direction normal to the tread surface of the sole of the shoe on the jack to receive a central rib projecting rearwardly from the body portion of the tool, said tool holder also being provided with surfaces to engage rear surfaces at each side of the rib and resist the backward thrust on the tool during the edge-setting operation.

14. An edge-setting machine having, in 3 combination, an edge-setting tool and a shoe supporting jack relatively movable to transfer the point of operation of the tool along the sole edge of a shoe supported on the jack, and a tool holder provided With a slot extending in a direction normal to the tread surface of the sole of the shoe on the jack to receive a central rib projecting rearwardly from the body portion of the tool, said tool holder also being provided with surfaces to engage rear surfaces at each side of the rib and resist the backward thrust on the tool during the edge-setting operation, said rear surfaces of the tool being curved to allow a rocking movement of the tool about an axis parallel to the portion of the sole edge adjacent the point of contact and in front of the Working face of the tool.

ALFRED R. MORRILL.

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