US2680864A - Insole holddown for lasting machines - Google Patents

Description

June 15, 1954 Filed July 16, 1951 r. P. COURQ-[ENE- ,680,864

INSOLE HOLDDOWN FOR LASTING MACHLNES 4 Sheefcs-Sheet l I in van for Theodohe f? Cou/"c/zene 5y .ihzls Azzor'ney June 15, 1954 -r. P. COURCHENE 2,680,364

INSOLE HOLDDOWN FOR LASTING MACHINES Filed July 16, 1951 4 Sheets-811g 2 [raven zOP- Theodore .PCou rchene 53 his Azto/fnegy June 15, 1954 T. P. COURCHENE 2,680,364

INSOLE HOLDDOWN FOR LASTING MACHINES Filed July 16 1951 4 sheets-sheet 3 Inventor" Theodor P Cou r-chene By his Attorney June 15, 1954 T. P. CQURCHENE 2,680,864

INSOLE HOLDDOWN FOR LASTING MACHINES Filed July 16, 1951 4 sheets sheet 4 frwen I01" Theodor-e P Cou rc/zene B z/ his Attorney Patented June 15, 1954 UNITED STATE ATENT OFFICE INSOLE HOLDDOWN FOR LAS'TING MACHINES Application July 16, 1951, Serial No. 236,908

13 Claims. 1

This invention relates to lasting machines, and is herein shown as applied to a machine the general organization of which is substantially as disclosed in United States Letters Patent No. 1,843,232, granted on February 2, 1932, on an application of B. J'orgensens. It is to be understood, however, that the invention is not limited to this illustrative embodiment.

Machines such as shown in the above-mentioned Letters Patent are used for lasting tennis shoes or the like which are commonly made on metal lasts and in the lasting of which the uppers are secured to insoles on the lasts by adhesion. Such a machine includes toe-lasting mechanism, heel-lasting mechanism and opposite side-lasting mechanisms, whereby the entire shoe is lasted. The operator mounts a last bottom upward in the machine with an upper loosely positioned thereon and while controlling the loose upper with his hands presses with his knee on a plunger which causes the heel-lasting'mechanism and the sidelasting mechanisms to be moved inwardly by springs into positions to clamp the upper against the heel end and sides of the last. Thereafter he positions a loose insole on the bottom of the last and starts the power operation of the" machine, whereupon the last and shoe are moved downward with the heel-lasting mechanism relatively to the toe-lasting mechanism and the sidelasting mechanisms by a toe presser foot and a,

heel presser foot engaging the toe and heel ends of the insole respectively, as explained in detail in the above-mentioned Letters Patent. The toe presser foot is carried by an arm which, by means of a handle thereon, the operator swings forwardly about a vertical to position the presser foot over the toe end of the shoe, and by this swinging movement of the arm the machine is started. The operator is accustomed thus to swing the arm with his left hand and at the same time to hold the loose insole against displace ment by engaging it with the thumb and one or more fingers of his right hand over the forepart of the last. It will be understood that upon the starting of the machine the toe presser foot is.)

carried downwardly into engagement with the insole.

The present invention provides means for relieving the operator of the necessity of holding the insole as above described when he starts the;

Among other advantages, this insures descends. For the purpose in view, the construction shown comprises a holddown arranged to engage the insole and to press it on the bottom of the forepart of the last, and means for thus applying the holddown to the insole after the operator has properly positioned the latter on the last but prior to the starting of the machine. In order that the holddown may be moved from an initial retracted position into insole-engaging position with as little inconvenience and effort as possible on the operators part, a member is arranged conveniently to be engaged and depressed by the operators left arm while he is holding the insole with both his hands in proper relation to the last and by such depression to move the holddown in a predetermined path to a position over the bottom of the shoe, whereupon a spring acts automatically to move the holddownwardly into engagement with the insole. At the proper time in the operation of the machine the holddown is retracted from the shoe, a poweroperated member serving to move it vertically upward away from the shoe, whereupon the above-mentioned spring acts automatically to swing it away from over the shoe to its initial position.

The above and other features of the invention, including various novel details of construction and combination of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a view in front elevation of portions of the machine to which the invention is herein shown as applied, to the parts being shown as they appear shortly after the starting of the power operation of the machine;

Fig. 2 shows mainly in elevation the left-hand upper portion of the machine as viewed from the right with reference to Fig. 1, the parts being in the same positions as in Fig. 1;

Fig. 3 is a view in rear elevation of the toelasting mechanism and parts associated therewith for purposes of this invention;

Fig. 4 shows in elevation certain parts included in the machine as viewed in the opposite direction from the parts shown in Fig. 2; and

Fig. 5 is a view in the same direction as Fig. 2 of the parts provided for purposes of this invention with these parts in their initial positions.

In view of the disclosure in the aboveeme'ntioned Letters Patent, only such portions of the machine as it is necessary to refer to for an understanding of the invention will be herein 'gina-l portion of the upper.

V described. The last and shoe are supported bottom upward for the lasting operation by a vertically movable slide '2 (Fig. l) mounted to move downwardly in guideways in the frame against the resistance of a spring l and also by a downwardly movable toe rest 5, the slide 2 being provided with a last pin 6 arranged to enter the usual spindle hole in the heel end of a metal last. For lasting the shoe the machine is provided with toe-lasting mechanism 8, heel-lasting mechanism It and opposite side-lasting mechanisms 52 (Figs. 1 and 4) the heel-lasting mechanism being carried by the slide 2 to move down wardly and upwardly therewith relatively to the toe-lasting mechanism and the side-lasting mechanisms. The side-lasting mechanisms (Fig. 4) include flexible straps i4 arranged to be pressed against the sides of the shoe by blocks it mounted on arms it to cause them to wipe the upper heightwise of the last in response to downward movement of the last, and also include fingers which act thereafter through the straps hi to lay the marginal portion of the upper inwardly over the insole. Associated with the sidelasting mechanisms in the machine herein shown are clamping fingers 2!, which, simultaneously with the starting of the power operation of the machine, are moved inwardly to positions over the bottom of the shoe, as illustrated in 1. 4, and at the beginning of the cycle of operations are thereafter moved downwardly and outwardly into positions to clamp the marginal portions of the upper against the straps it before the shoe is moved downwardly, as disclosed in a copending application of mine Serial No. 166,389, filed on June 6, 1950.

In presenting the work to the machine the operator mounts the last, with the upper loosely assembled thereon, on the last pin 6, and while holding the upper with his fingers in proper relation to the last he presses with his knee on a plunger (not shown) whichcorresponds to the plunger 72 shown in Letters Patent No. 1,843,232, and thereby causes the heel-lasting mechanism and the opposite side-lasting mechanisms to move inwardly toward the shoe into positions to clamp and hold the upper against the last. The operator then places a loose insole on the bottom of the last within the more or less upstanding mar- Thereafter, upon the starting of the power operation of the machine, the shoe is moved downwardly with the slide 2 and the heel-lasting mechanism relatively to the toe-lasting mechanism and the side-lasting mechanisms by a heel presser foot 22 (Fig. 1) engaging the heel'end of the insole and a toe presser foot 24 (Fig. 2) engaging the toe end of the insole. The toe presser foot is carried by an arm 23 mounted to swing forwardly and rearwardly about the vertical axis of a post 23 on which it is secured, this arm being provided with a handle 39 by which the operator swings it forwardly with his left hand to carry the toe presser foot into position over the toe end of the shoe. By means not herein shown in detail, but constructed as disclosed in Letters Patent No. 1,843,232, the starting of the machine is effected by this forward swinging movement of the arm 25, the starting means including a member 32 (Fig. 1) which corresponds to the member 495 shown in said Letters Patent. To insure against displacement of the loose insole relatively to the last until after the presser feet 22 and 24 have engaged the insole, it is customary for the operator to hold the insole in proper position by the bar in that position with the holddowh 3 engaging it with the thumb and one or more fingers of his right hand over the forepart of the last.

As a safeguard against possible injury of the operators right hand by being caught between the toe presser foot E i and the insole or, if the machine is provided with the clamping fingers, by being engaged by these fingers when they are operated, the present invention provides means for controlling the insole in such manner that the operator need not use his right hand for this purpose at the time when he starts the machine. This controlling means includes a holddown 34 having downwardly extending fingers 36 spaced apart widthwise of the shoe for engagement with the insole over the forepart of the last. The holddown is pivotally mounted on a stud 3?, threaded in the downturned front end of a forwardly and rearwardly extending rod 40 to permit it to adjust itself to the bottom of the shoe. A spring =22 connected to the rod and the holddown holds the latter normally in a relation to the rod which is approximately that which it assumes upon engagement with the insole. The rod 43 near its rear end extends through a sleeve it formed integral with a block 46 which is adjustable upwardly or downwardly on the upper endof a downwardly extendingbar t8 and is held in adjusted position by a clamp screw 50 extending into the bar through a slot in the block. Threaded on the rod at at the opposite ends of. the sleeve 5% are nuts 52 by which the rod and the holddown 3d thereon may be secured in diiferent positions of adjustment widthwise of. the shoe relatively to the bar 38.

The bar 18 is supported on a bracket 5s which is secured on the rear of a slide 56 adjustable lengthwise oi the shoe and supporting the toelasting mechanism El, this slide corresponding to that identified as 232' in Letters Patent No. 1,843,232. The lower portion of the bar ifi is confined laterally between avertical web 58 formed on the bracket 54 and a member 553 cooperating with the web to provide a guideway in which the bar is movable downwardly and upwardly and may also swing forwardly and rearwardly. The bar 48' is further guided and controlled a vertical slot 52 in the web 55 through which extends a stud fi l on thelower end oi the bar, and by a slot 56 in the web in which lies a roll 53 carried by the bar. As shown in Fig. 5, the slot 8t has diiferent portions in divergent relation to each other, comprising a vertical portion parallel to the slot 52 and a rearwardly and downwardly inclined' curved portion the rear lower endof which the roll 53 lies when the bar (iii is in its initial position. A'springl6 connected to the bar and to a lug $2 on the web 58 tends to hold retracted rearwardly from the position which it occupies when over a shoe. To cause the holddown 3 5 to be applied to insole the bar 38 is swung forwardly about'the axis of the stud fi l until the roll 58 on the bar arrives at the junction of the two different portions of the slot 55, at whichtimethe holddown is positioned directly over the insole on the last. As soon as the roll arrives in that position the springlfi automatically moves the bar 458 and the holddown bodily downward in a rectilinear path until the holddown engages the insole and presses it against the bottom of the last. For thus swinging the bar i forwardly there is rotatably mounted in a pair of upstanding lugs i l formed on a cover plate l6 positioned over the the trated in Fig. 3.

toe-lasting mechanism a forwardly and rearwardly extending shaft 218 having fast on its front end an arm 88 on the left-hand end of which is mounted a rubber pad 82. Fast on the rear end portion of the shaft 18 and extending therefrom in the opposite direction as compared with the arm 83 is an arm as connected by a downwardly extending link 86 to a short arm 86 fast on a small rockshaft 9G mounted in a lug on the member 68, the connection between the link 85 and the arm 88 including a ball joint. Also fast on this rockshaft is an upwardly and rearwardly extending arm 92 of angular shape, an end portion. of which is in position to engage the rear edge of the bar it. It will thus be seen that in response to downward pressure applied to the pad 82 the link 85 is moved upwardly to cause the arm 92 to impart forward swinging movement to the bar 18 until the roll 68 arrives at the upper end of the vertical portion of the slot 65. The pad 82 is so positioned that the operator may conveniently move it downwardly by engaging it with his left arm while he is using both hands to position and hold the insole in proper relation to the last. Not only is the operator thus relieved of the necessity of thereafter holding the insole properly positioned on the last with one hand while he swings the arm 25 forwardly with the other hand to start the machine, but the pressure applied to the insole by the holddown 35 under the influence of the spring Hi is such as to afford better insurance that the insole will be securely held in proper position until it is engaged by the presser feet 22' and 24. When the shoe is moved downwardly by the presser feet, the holddown 35 is moved downwardly with it by the spring '10, the slot 62 and the vertical portion of the slot 65 extending far enough downwardly to permit this.

The holddown 3s engages the insole between the extreme end portions of wipers 94 (Fig. 2) which are parts of the toe-lasting mechanism corresponding to the wipers 298 of Letters Patent No. 1,843,232. To prevent interference with these wipers provision is afforded for returning the holddown 3 1 to its initial position prior to any substantial inward movements of the wipers. Conveniently the holddown is moved reversely upward away from the shoe through connections with mechanism included in the machine for operating the wipers. As disclosed in Letters Patent No. 1,843,232, the wipers 9d are operated by a pair of rack bars 95 each engaged by a gear sector 58 fast on a rockshait lfiii (Fig. 3), only one of the gear sectors being herein shown. For the purpose in view this gear sector engages and operates another gear sector Hi2 pivotally mounted on an L-shaped bracket iii/i one arm of which is secured by screws H355 to the cover plate '55. Integral with the gear sector 982 is an arm ifi-i on which is pivotally mounted a member Hi3 provided with a bore through which extends a rod i it connected at its lower end by a ball joint to the stud Ed on the lower end of the bar 8. On the upper end of the rod Hii is formed an enlarged head H2 which, as shown in Fig. is positioned initially a substantial distance above the member H38. When the holddown is applied to the insole and the shoe is thereafter moved downwardly in the manner hereinbefore described, the rod I H3 is moved downwardly by the I bar 48 until its head H2 is nearly in position to engage the member it on the arm I55, as illus- When the wipers are operated to wipe the marginal portion of the toe end of the upper inwardly over the insole the arm I06 is swung upwardly, causing the member I08 to raise the rod H0 and thereby to move the bar 18 and the holddown vertically upward until the roll 68 arrives at the upper end of the vertical portion of the slot 66. When the roll arrives in this position the spring 10 automatically swings the bar 48 rearwardly to carry the holddown away from over the shoe, the spring being so arranged relatively to the bar that it acts, when permitted, thus to swing the bar. In this manner the bar is returned to the position determined by engagement of the roll 68 with the web 58 at the lower rear end of the rearwardly inclined portion of the slot 66.

The manner in which the holddown 34 is operated and controlled having thus been fully explained in connection with the description of the structure provided, no further description of the operation is necessary. While the holddown, in the construction herein shown, is disclosed as for holding a loose insole in position on the last, it is to be understood that in various novel aspects the invention is not limited to a holddown which serves this particular purpose.

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 lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, said holddown being mounted for movement by the operator from an initial retracted position to a position over the bottom of the shoe, a spring arranged to move the holddown automatically downwardly into engagement with the shoe upon its arrival in position over the bottom of the shoe, and means for supporting the holddown against downward movement by said spring until it has arrived in that position and for then releasing it to the action of the spring.

2. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, said holddown being mounted for movement by the operator widthwise of the shoe from an initial retracted position to a position over the bottom of the shoe, and a spring arranged to impart to the holddown automatically rectilinear downward movement into engagement with the shoe upon its arrival in position over the bottom of the shoe.

3. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, means for guiding said holddown for movement in a predetermined path first from an initial retracted position to a position over the bottom of the shoe and thereafter downwardly into engagement with the shoe, means movable by the operator thus to move the holddown into position over the bottom of the shoe, and a spring arranged to impart to the-holddown automatically its downward movement into engagement with the shoe upon its arrival in position over the bottom of the shoe, said guiding means being arranged to support the holddown against downward movement by said spring until it has arrived in that position and for then releasing it to the action of the spring.

4. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, means for guiding said holddown first for swinging movement widthwise of the shoe from an initial retracted position to a position over the bottom of the shoe and thereafter for rectilinear downward movement into engagement with the shoe, means movable by the operator thus to swing the holddown to its position over the botttom of the shoe, and a spring arranged to impart to the holddown automatically its downward movement upon its arrival in position over the bottom of the shoe.

5. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, means for guiding said holddown for movement in a predetermined path first from an initial retracted position to a position over the bottom of the shoe and thereafter downwardly into engagement with the shoe, said guiding means bein: provided with a slot having difterent portions arranged in divergent relation to each other to guide the holddown respectively in its movement into position over the shoe and in its movement downwardly into engagement with the shoe, the holddown being movable by the operator to the position over the shoe, and a spring arranged to impart to the holddown automaticaliy its downward movement into engagement with the shoe upon its arrival in position over the shoe.

5. In a lasting inaohine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, a support for said holddown movable to carry it from an initial retracted position into shoe-engaging position, guiding means for said support provided with a slot having diiierent portions arranged in divergent relation to each other, a member oarried by said support and movable along said slot, one portion of the slot being arranged to guide the holddown for movement from its initial retracted position to a position over the bottom of the shoe and the other portion of the slot being arranged to guide it for downward movement thereafter into engagement with the shoe, means for moving said holddown support to carry the holddown thus into position over the shoe, and a spring arranged to act on said support to move the holddown automatically downward into engagement with the shoe upon arrival of said member at the junction of the different portions of the slo '7. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, means for guiding said holddown for movement from an initial retracted position to a position over the bottom of the shoe and there after for downward movement into engagement with the shoe, means for moving the holddown reversely upward to withdraw it from the shoe, and a spring arranged to be subjected to stress by such upward movement of the holddown and LIL to inpart thereto automatically reverse move- 'ment to its initial position in the path determined the shoe, means provided with a slot having an inclined portion for guiding said holddown. first for swinging movement widthwise of the shoe from an initial retracted position to a position over the bottom of the shoe and another portion 7 arranged to guide it thereafter for downward movement into engagement with the shoe, means for moving the holddown reversely upward to withdraw it from the shoe, and a spring arranged to be subjected to stress by such upward movement of the holddown and to impart thereto automatically reverse swinging movement in the path determined by the inclined portion of said slot upon its arrival at the end of its upward movement.

9. In a lasting machine, means for supporting a shoe botto'nupward for a lasting operation thereon, a holddown for engaging the bottom of shoe, for guiding said holddown for movemen in. a predetermined path first from an initial retracted position to a position over the bottom of the shoe thereafter downwardly into engagement with the shoe, a spring arranged to impart to the holddown automatically its downward movement into engagement with the shoe upon its arrival in position over the bottom of shoe. and n eans for moving the holddown to withdraw it from the shoe, said spring being further arranged to return the holddown autcin cally to its initial retracted position in the pain determined by said guiding means upon its arrival at the end of its upward movement.

10. In a lasting machine, means for supporting a shoe bottom upward for a lasting operation thereon, a holddown for engaging the bottom of the shoe, means provided with a slot having an inclined portion for guiding said holddown first for swinging movement widthwise of the shoe from an initial retracted position to a position over the bottom of the shoe and another portion arranged to guide it thereafter for downward movement into engagement with the shoe, a spring arranged to impart to the holddown automatically its downward movement'upon its arrival'in position over the bottom of the shoe, and

means for moving the holddown upwardly towithdraw it from the shoe, said spring being further arranged to swing the holddown automatically to its initial retracted position in the path determined by the inclined portion of said slot upon its arrival at the end of its upward movement.

11. In a lasting machine, means for supporting bottornupward a last and shoe including an insole loose on the last, a holddown mounted for movement from an initial retracted position into position to engage the insole and to hold it in proper relation to the last, a member arranged to be engaged and moved by one of the operators arms while he is holding the insole properly positioned on the last with both hands, means for imparting to the holddown a portion of its movement toward insole-engaging position by the movement of said member, and a spring arranged to complete automatically the movement of the holddown toinsole-engaging position upon its arrival in the position to which it is moved by said.

member.

12; In a lasting machine, means for supporting bottom upward a last and shoe including an insole loose on the last, a holddown for engaging the insole and holding it in proper relation to the last, said holddown being mounted for movement from an initial retracted position to a position over the bottom of the shoe and for movement thereafter downwardly into engagement with the insole, a member arranged to be engaged and moved by one of the operators arms while he is holding theinsole properly positioned on the last with both hands, means formoving the holddown from its initial position into position over the bottom of the shoe by the movement of said member, and a spring arranged to move the holddown automatically downward into engagement with the insole upon its arrival in position over the bottom of the shoe.

13. In a lasting machine, means for supporting bottom upward a last and shoe including an insole loose on the last, a holddown for engaging the insole and holding it in proper relation to the last, means for guiding said holddown first for swinging movement widthwise of the shoe from an initial retracted position to a position over the bottom of the shoe and thereafter for downward movement into engagement with the insole, a member arranged to be engaged and moved by one of the operators arms while he is holding the insole properly positioned on the last with both hands, means for imparting to the holddown its swinging movement into position over the shoe by the movement of said member, and a spring arranged to impart to the holddown automatically its downward movement into engagement with the insole upon its arrival in position over the bottom of the shoe.

References Cited in the file of thi patent UNITED STATES PATENTS Number

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