US1866745A - Filler inserting machine - Google Patents

Description

July 12, 1932. M. G. 51155 FILLER INSERTING MACHINE Filed Feb. 20, 1931 4 Sheets-Sheet l W T jg J y 1932- M. G; BLISS FILLER INSERTING MACHINE Filed-Feb. 20, 1951 4 Sheets-Sheet 2 Z d 60 fiazcaz g' mm 13,416- /V I kw July 12, 1932. M. G. BLISS FILLER INSERTING MACHINE Fiied Feb. 20, 1931 4 Sheets-Sheet 5 July 12, 1 932. I uss 1,866,745

FILLER INSERTING MACHINE Filed Feb. 20, 1931 4 Sheets-Sheet 4 1 '2 VIIIIIIIIIIIIIIIIJ.

Milli/Iii Patented July 12, 1932 UNITED STATES PATENT oFFicE MALCOLM G. BLISS, OF NORTH GRAFTON, MASSACHUSETTS, ASSIGNOR TO HEY'WOOD BOOT & SHOE COMPANY, OF WORCESTER, MASSACHUSETTS, A. CORPORATION OF MASSACHUSETTS FILLER INSERTIN'G IiiACHINE Application filed February 20, 1931.

This invention relates to a machine for in serting a filler in a welt shoe.

WVhen the insole lip is turned upward and stitched to the welt and upper, a substantially triangular recess or so-called gutter is left in the under side of the insole and just Within the line of welt stitches. In high grade shoes it is desirable to fill this recess with a triangular strip of leather known as a filler, in order to level up the sole and prevent a depression being formed in the insole after the shoe has been put in use.

This filler strip has commonly been cemented in place by a rather slow and laborious hand operation, which was not always productive of satisfactory results, particularly at the toe of the shoe.

It is the general object of my invention to provide means for mechanically inserting and pressing a filler strip into the insole l p recess or gutter of a welt insole.

Further features of my invention relate to the provision of a yielding support for the edge of the shoe during the filler inserting operation; to the provision of a pilot or guide to facilitate the insertion of the filler strip in the desired position, particularly around the toe portion of the shoe, and to the provision of a hammer or pressing member effective to firmly force the filler strip into the recess or gutter and also effective to feed the shoe and filler strip forward.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings, in which Fig. 1 is a side elevation of my improved machine;

Fig. 2 is a front view of the lower portion of the machine, looking in the direction of the arrow 2 in Fig. l; i

Fig. 8 is a sectional side elevation, taken along the line 33 in Fig. 2;

Fig. 4 is a detail side elevation, looking in the direction of the arrow 4 in Fig. 2;

Fig. 5 is a detail plan view, looking in the direction of the arrow 5 in Fig. 3;

Fig. 6 is an enlarged front elevation of the Serial No. 517,360.

upper part or head of the machine, looking in the direction of the arrow 6 in Fig. 1;

Fig. is a side elevation of the head of the machine, looking in the direction of the arrow 7 in Fig. 6;

Fig. 8 is a side elevation of a guide-plate for the filler strip, looking in the direction of the arrow 8 in Fig. 6';

Figs. 9 and 10 are detail sectional plan of the shoe shown in section;

Fig. 14 is a side elevation of the hammer I or presser foot, with a portion of the shoe shown in section, and

Figs. 15 to 17 are diagrammatic front elevations illustrating the functions of the guide and presser footor hammer.

Referring first to Fig. 11, I have shown the under side of a welt shoe S having an insole A, an insole lip B, and a welt W. The lip B (Fig. 13) is turned upward and outward and stitches D are inserted to secure the welt W and the edge of the upper U to the insole A. When the lip B is thus turned upward and outward, a substantially triangular recess or gutter G (Figs. 13 and 1%) is formed in the bottom of the insole A.

The object of the present invention, as above stated, is to insert a filler strip F into the gutter or triangular recess G. It is customary to treat the surface of the insole atthe recess or gutter portion with one or more coats of cement, which are allowed to dry before the filler strip is inserted. This strip is then cemented and inserted and pressed firmly into the recess, providing a substantially level bottom surface for the insole A, as indicated in Fig. 14.

I will now describe the machine which I have devised for mechanically inserting the strip F in the previously cemented gutter G.

The machine as shown in Fig. 1 comprises two distinct parts, namely a yielding support for the shoe, and a combined pressing and feeding head. The yielding support will first be described, referring particularly to Figs. 1 to 5.

As shown in these figures, my improved support comprises a plunger 20 (Fig. 3) vertically slidable in a sleeve 21 secured in a base or stand 22 which in turn is firmly secured to the frame 23 of the machine. The frame 23 may be mounted upon a stand or table H (Fig. 1) or otherwise supported as desired. The plunger 20 is forced yieldingly upward by a coil spring 25, the lower end of which is seated on an adjusting screw 26 (Fig. 3) threaded in a cap 27 secured to the lower end of the sleeve 21. The pressure of the spring 25 may be adjusted by raising or lowering the screw 26, and a lock nut 28 is provided for maintaining the adjustment.

A projection 30 (Figs. 2 and 4) extends upward from the upper end of the sleeve 21 and is slotted at 31 to receive a lug 32 fixed on the side of the plunger 20. An adjusting screw 33 is threaded into the top portion of the projection 30 and extends down into the slot 31 above the lug 32. Engagement of the lug with the lower end of the screw limits upward movement of the plunger 20 and by adjustment of the screw 33 this upward limit of movement may be substantially varied.

A rod 36 is secured to the plunger 20 and extends down through an axial opening in the adjusting screw 26 to a foot lever or pedal 37 (Fig. 1) mounted upon a fixed pivot 38. By depressing the pedal 37, this spring 25 may be compressed and the plunger 20 correspondingly lowered from its upper or operating position.

A bar 40 (Fig. 3) is mounted to slide cross wise in a slot 41 (Fig. 2) in the upper end of the plunger 20, the bar being confined in the slot by a cap or plate 42. A spring 44 normally moves the bar 40 to the right (Fig. 3) until a stop pin 45 engages the side of the plunger 20.

At the right hand or forward end of the sliding bar 40 a conical supporting roll 46 is pivotally secured by a screw 47. The thin upper edge of the roll 46 is adapted to be inserted between the welt and the upper of a shoe, as indicated in Fig. 13, and thus provides a support for the shoe but is capable of yielding both rearwardly and downwardly. The rearward yielding movement takes place more particularly during the inserting of the filler strip around the toe of the shoe, while the downward yielding movement may take place when the hammer or presser foot to be described is depressed.

Coming now to the description of the uppart part or head of the machine, I have shown a head frame 50 (Fig. 1) in which ashaft 51 is rotatably mounted. This shaft may be rotated by a belt 52 from any suitable source of power, and is preferably under manual or foot control. At its front end, the shaft 51 is provided with an eccentric cam member 54 (Figs. 6 and 7 which extends through a circular opening 55 in the upper end of a sliding bar 56.

, The bar 56 is slotted at 57 to receive a square block 58, mounted on a fixed pivot 59 and forming a guide for the bar 56 during its sliding movement. The outer end of the block 58 is enlarged, as indicated at 60, to prevent outward displacement of the slide 56.

VVit-h this construction, it will be apparent that the slide 56 has both a vertical movement and a swinging movement, so that the hammer or presser foot 62 (Fig. 6) mounted in a downward extension 63 of the slide 56 will receive a four-motion movement, somewhat resembling the well known feed motion in a sewing machine.

It will be noted that the slide 56 is not confined laterally on the head 50, so that both sliding and angular movement is permitted.

The filler strip F may be supplied from a spool or roll (not shown) and is conducted over a guide wheel (Fig. 1) pivotally mounted on a support 71 extending upward from the head 50. The filler strip F is conducted downward alongside aguide-bar 73 having a rearwardly tapered lower end. portion 74. A guide-plate 75 is mounted for Vertical adjustment on the lower end portion 74 of the guide-plate 73 and is secured in vertically adjusted position by clamping screws 76 (Fig. 7).

The filler strip F is held against the guidebar 74 and guide-plate 75 by a roll 77 (Figs. 7 and 10). The roll 77 is mounted on the offset lower end of a rod 78 which is secured in a rocker plate 79 (Fig. 6). The plate 79 is mounted on a fixed pivot 80 and is engaged by a spring 81 acting to force the roll 77 against the filler strip F. The yielding mounting of the roll 77 permits the roll to move outwardly for threading purposes or to accommodate variations in the thickness of the filler strip.

The lower end of the guide-plate 75 is curved toward the hammer or presser foot 62, as clearly shown at 82 in Fig. 6. A guiding rib or projection 83 is formed at the front edge of the curved portion 82 of the plate 75 and a rear guiding device 84 is formed at the back side of the lower curved portion 82. A pilot 85 projects downward from the device 84 and is in the form of a lip or spur positioned at the left hand end of the device 84, as shown in Fig. 6.

At its extreme lower end, the curved portion 82 of the guide-plate 7 5 is recessed, as indicated at 87 in Fig. 9, to receive a portion of the lower end of the hammer or presser foot 62, which is shown in section in ly curved toe portion of the shoe. The cf Fig. 9. From this figure it will be seen that the presser foot has a front portion 90 adapted to enter the recess 87 and positioned substantially in advance or to the right of a rear portion 91 of the presser foot. The parts 90 and 91 are preferably serrated.

Having described the details of construction of my improved filler-inserting machine, the method of operation thereof is most clearly shown in Figs. 18 to 17 inclusive. The filler strip F is conducted over the guidewheel (Fig. 1) and alongside the guidebar 73 (Fig. 7), passing behind the roll 77 and between the front and rear guiding devices 83 and 8% on the curved lower portion 82 of the guide-plate 75. The filler strip F is thus brought to a position directly underneath the presser foot 62.

The plunger 20 and supporting roll 46 are then depressed by the pedal 37 and the shoe to be treated is presented manually to the machine in such position that the edge of the conical supporting roll 46 (Fig. 13) enters between the welt W and the upper U. The plunger 20 is then released and the pilot 85 enters the recess or gutter G at the side of the insole lip B. The spring 44 (Fig. 3) on the cross-bar 40 pushes the supporting roll 46 against the shoe, holding the same with its insole lip B pressed firmly against the pilot 85. Rotation of the eccentric shaft 51 in the head 50 gives the presser foot or hammer 62 a repeated four-motion movement.

Starting from the raised position shown in Fig. 15, the presser foot 62 moves substantially downward with little side motion to the position shown in Fig. 16. The advance or front portion (Fig. 9) of the presser foot 62 engages the thin edge of the filler strip at the side of the pilot 85 and the rear portion 91 engages the thick edge of the filler strip after it has passed the pilot 85.

After the presser foot reaches the position shown in Fig. 16, it receives a substantially transverse motion to the left with little vertical motion while in contact with the filler strip and shoe, thus acting not only as a device for pressing the strip F firmly into the gutter G, but also acting to feed the shoe and the strip forward during the pressing opera tion. The presser foot 62 continues its move ment upward and to the right after the pressing and feeding operation, thereby returning the presser foot to the position shown in Fig. 15.

Usually, he shoe and the supporting roll 46 on the plunger 20 are pushed downward somewhat from normal position at each pressing and feeding movement of the presser foot.

The filler strip is thus accurately guided to the gutter G and is firmly pressed therein, and all parts cooperate in such a way that the strip is easily inserted, even around the sharpfective action of the presser foot may be conveniently interrupted at any time by depressing the pedal 37.

The operation is much more quickly performed than the previous hand operation and the filler strip is more firmly and accurately seated in the gutter G. A substantial amount of time and labor is thus saved, while at the same time superior results are attained.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is z- 1. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, and means to press the filler strip firmly into said gutter.

2. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, and means to press the filler strip firmly into said gutter and to simultaneously feed said shoe and strip forward.

8. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe as set forth in claim 2, in which the support is mounted to yield in the direction in which said latter means presses against the filler strip, and also in a direction substantially perpendicular to said first yielding movement.

4. A machine for inserting filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, a pilot engaging the inner side of the insole lip and thereby presenting the filler strip accurately in said gutter, and means to press the tiller strip firmly into said gutter.

5. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, said means including a guide plate having a curved lower end portion with front and rear guiding projections, and means to press the filler strip firmly into the gutter.

6. Amachine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, said means including a guide plate having a curved lower end portion with front and rear guiding projections and with a pilot device engaging the inner side of the insole lip,

and means to press the filler firmly into said gutter.

7. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, and a combined feeding and pressing member having a four-motion movement.

8. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched Welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, and a combined feeding and pressing member having a four-motion movement, said member having a serrated stripengaging end portion formed in two parts, one part being positioned substantially in advance of the other part.

9. A machine for inserting a filler strip in the gutter of the in-sole of a lasted and stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the in-sole of said shoe, and a combined feeding and pressing member having a four-motion movement, said member having a serrated stripengaging end portion formed in two parts, one part being positioned substantially rearward of the other part with respect to the direction of shoe feed and engaging the thin edge portion of said filler strip, with the second part engaging the thick edge portion of said strip in advance of the point of engagement of said member With said thin portion.

10. A machine for inserting a filler stri in the gutter of the in-sole of a lasted an stitched welt shoe, said machine comprising a support for the edge of the shoe, means to guide a filler strip to the gutter at the inner side of the welt-attaching lip of the insole of said shoe, a pilot to relatively position said shoe and filler strip, and a combined feeding and pressing member having a portion engaging the thin edge portion of the filler strip at the side of said pilot and having a second portion engaging the thick edge portion of said strip in advance of said pilot.

In testimony whereof I have hereunto affixed my signature.

MALCOLM G. BLISS.

Images