US2068957A - Shoe jack - Google Patents

Description

T. MARCUS Jan. 26, 1937.

SHOE JACK Filed March 20, 1936 2 Sheets-Sheet l D INVENTOR. We Mafia/6 ATTORNEYS T. MARCUS SHOE JACK Jan. ze, 1937.

Filed March 20, 1936 2 Sheets-Sheet 2 mu m TC N 3/ m WM m n .6 .M

Patented Jan. 26, 1937 UNIT E D STAT E S SHOE JACK Tien Marcus, Holland, Mich., assignor to Holland Shoe Company, Holland, Mich.

Application March 20,

20 Claims.

The main objects'of my invention are:

First, to provide a shoe jack capable of presenting a lasted shoe in proper relation to a machine for punching andpegging the sole parts thereof,

' i. e., whereby the machine will operate in a direction normal to the sole at the point tobe punched and pegged.

Second, to provide a-jack of the type described, characterized by a universal rocking action which adapts it to the proper positioning of a shoe underneath a punching and pegging head.

Third, to provide a jack or support of the type described, which may be readily manipulated by an operator to place the lasted shoe carried by the jack in any'desired-rocked position relative to the punching and pegging head.

Fourth, to provide a jack of the type described, which is simple in construction and economical of manufacture, as well as being easily operated by unskilled labor.

Further objects relating to details and economies of my invention will definitely appear from the description to follow. The invention is defined in the claims.

A preferred embodiment of my invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view illustrating the jack of my invention in operative relation to a supporting table, the punching and pegging head with which it isdesigned to be used, and a piece of Work.-

Fig. 2 is a sideelevational view of my jack, illustrating the relation of the parts and particularly the locking pawl and rack associated therewith.

Fig. 3 is a fragmentary sectional view on the line 3--3 of Fig. 2.

Fig. 4 is-a fragmentary sectional view illustrating the manner in which the device of my invention is employed to present a lasted shoe to the action of the punching and pegging head.

In the production of shoes of the type described in my copending application, Serial No. 69,931, filed March 20, 1936, it is necessary, in quantity production, to provide a means for punching or aperturing a plurality of thicknesses of leather material and for driving a wooden peg through the apertures when they are'made. A machine has been devised for this purpose, which forms no part of my invention, the invention in the present application being concerned mainly with a device or jack for supporting the lasted shoes with respect to the punching and pegging head of the machine so that the apertures may be 1936, Serial No. 69,930

formed and the pegs driven in a direction normal to the surface of the shoe sole at the point where the aperture or peg is to be formed or driven.

I have therefore devised a jack of an entirely universal nature enabling the lasted shoe to be properly presented to the head to accomplish this purpose. The punching and pegging head is characterized by the fact that it automatically impels or indexes the lasted shoe a certain amount after each punching operation. Accordingly, the jack of the present application is provided with means whereby the forward travel of the shoe under the influence of the indein'ng action may be unimpeded.

Referring to the drawings, the reference numeral l broadly indicates a punching and pegging head having an awl 2 and a driver 3 which are respectively adapted to punch a series of holes in the sole and associated parts of a lasted shoe, and to drive wooden pegs into the punched holes. After each punching and pegging operation, the head automatically indexes the shoe whereby another surface is presented to be punched and pegged. The reference numeral 4 indicates a conventional last upon which the shoe parts are mounted, and the reference numeral 5 broadly indicates the support or jack constituting the present invention.

At 6 I illustrate a table vertically adjustable or shiftable on spindle l by manually operated pawl and ratchet means 8. I mount my jack on a floating plate 9 which is adapted to be shifted at will on table 6, the floating plate being provided with grooves l transversely of the bottom surface thereof whereby shifting of the plate is facilitated due to the elimination of the suction gripping effect. A pair of U-shaped brackets II are rigidly secured to plate 9 and the arms thereof are secured to arcuate rails or tracks [2 arranged in parallel relation with the concave sides thereof opening upwardly. The tracks provide rolling ways for a carriage to be hereinafter described, which is operatively associated with the last 4 to rock the same longitudinally or transversely relative to the head I whereby the punching and pegging operation of the head may be properly performed.

The carriage above referred tois made up of a longitudinal bar l3 upon which a pair of channeled members M are slidably adjustable, being secured in adjusted position by the capstan screws l5. Bar 53 has secured thereto at either end by means of screws [6 an upwardly opening U shaped strap I! in each arm of which is journaled a roller It} adapted to roll-on track l2, the rollers l 8 being each provided with an annular flange l 9 to guide and maintain them on the rails. As illustrated in Figs. 2 and 3, the channeled members 14 open downwardly and provide a space 20 clearing screws 16, and spacer sleeves 2| embracing the screws enable the straps I! to clear the channeled members. The carriage is restrained on the tracks by a follower 210 secured to the under side of bar i3 and having downwardly bent arms 2! l projecting underneath tracks 12.

One of the members I4 is provided with an inwardly extending toe post 22 and the other channeled member is provided with a similar upwardly extending heel post 23. The toe and heel posts provide journals for mounting the last for selective transverse rocking movement under the control of an operator.

Toe post 22 is provided with a bushing 24 having a squared opening 25, the bushing being rotatable in the toe post. A squared rod 26 fits the opening 25 and extends outwardly of the toe post, being pinned at 2'! to a member 28 provided with an upwardly extending threaded stud 29. Toe rest 30 is drilled and threaded to provide a socket 3| to receive threaded stud 29, wherefore it will be seen that the toe rest 30 is adjustable vertically by means of the construction just described.

Heel post 23 journals a rocking member 32 by means of a pivot stud 33 freely rotatable in the heel post, the pivot stud extending on either side of the heel post to provide a trunnion 34 upon which the heel post is mounted and a crank element 35. Squared rod 26 in the portion thereof between toe post 22 and heel post 23 is bent at 36 in order to provide clearance and carries an angularly disposed pin 31 engaging and extending through crank element 35, being secured in engaged position by cotter pin 38.

The rocking member 32 is divided at its upper end to provide a recess 39 in which is swiveled, on pivot 40, a last pin 4| operatively engaging the heel of the last. Coil spring 42 urges the last pin in a counterclockwise direction toward the toe post for the purpose of compensating for differences in height of the toe post. At its lower end, rocking member 32 is slotted at 43 and a toothed pawl 44 is pivotally mounted in the slot on pivot pin 45, a spring 46 serving to urge the pawl in a clockwise direction as viewed in Fig. 3. An arcuate rack 41 is mounted on heel post 23 as illustrated in Figs. 1, 2 and 3, being spaced therefrom by a collar 48 for operative engagement with pawl 44.

By the above described construction, it will be seen that the last may be rotated on the toe and heel posts 22, 23, transversely of the last, after the disengagement of pawl 44 from arcuate rack 41, the mounting of the rocking members 28 and 32 on rod 26 allowing for an equal oscillation of those members; accordingly, the shoe to be punched and pegged may be presented to the punching and pegging head in any one of a number of transverse inclinations so that the surface may at all times be normal to the direction of the punching and pegging action. When the proper inclination has been reached, the operator merely engages pawl 44 with rack 41 and the punching and pegging may proceed. After each punching and pegging operation, the head I indexes the shoe and the indexing action is permitted by the free rolling action of the carriage on tracks [2. The jack may be shifted at will on table 6, the shifting being accomplished without laborious effort, dut to the fact that suction eifects are eliminated by grooves l0 disposed between floating plate 9 and table 6. The toe rest and last pin may be adjusted longitudinally to accommodate shoes of various sizes. The device illustrated in Fig. 3 is shown with the toe rest and last pin spaced to the maximum extent.

It will accordingly be appreciated that I have provided a jack which is entirely universal in its adaptability to enable shoes of the type described in my copending application, above referred to, to be manufactured. The jack is simple in construction and in operation and greatly expedites the manufacturing operation referred to.

I have illustrated and described my improvements in an embodiment which I have found very practical. I have not attempted to illustrate or describe other embodiments or adaptations as it is believed this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

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

1. In combination with a vertically operable shoe pegging head, a shoe jack comprising a vertical spindle, a table adjustable on said spindle, a floating plate resting on said table, means for presenting a shoe to said head with the surface to be pegged at right angles to the direction of action of said head, comprising arcshaped rails mounted on said plate, an adjustable toe rest, and a swinging last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting transverse rotation of said toe rest and last pin with respect to said posts, comprising a rotatable bushing in said toe post, a stud rotatably mounted in said heel post and carrying said last pin, and a rod engaging said stud and extending through said bushing into fixed engagement with said toe rest whereby said rest and pin are rotatable in unison transversely of said head, means for controlling and halting such rotation, comprising a rack fixed with respect to said heel post and a detent pivotally mounted on an extension of said last pin to selectively engage said rack, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

2. In combination with a vertically operable shoe pegging head, means for presenting a shoe to said head with the surface to be pegged at right angles to the direction of action of said head, comprising arc-shaped rails, a toe rest, and a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting transverse rotation of said toe rest and last pin with respect to said posts, comprising a rotatable bushing in said toe post, a stud rotatably mounted in said heel post and carrying said last pin, and a rod engaging said stud and extending through said bushing into fixed engagement with said toe rest whereby said rest and pin are rotatable in unison transversely of said head, means for controlling and halting such rotation, comprising a rack fixed with respect to said heel post and a detent pivotally mounted on an extension of said last pin to selectively engage said rack, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

3. In combination with a vertically operable shoe pegging head, means for presenting a shoe to said head with the surface to be pegged at right angles to the direction of action of said head, comprising arc-shaped rails, a toe rest, and a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting transverse rotation of said toe rest and last pin with respect to said posts, means for controlling and halting such rotation, comprising a rack fixed with respect to said heel post and a detent pivotally mounted on an extension of said last pin to selectively engage said rack, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

4. In combination with a vertically operable shoe pegging head, means for presenting a shoe to said head with the surface to be pegged at right angles to the direction of action of said head, comprising arc-shaped rails, a toe rest, and a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting transverse rotation of said toe rest and last pin with respect to said posts, means for controlling and halting such rotation, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

5. In combination with a vertically operable shoe pegging head, means for presenting a shoe to said head with the surface to be pegged at right angles to the direction of action of said head, comprising arc-shaped rails, a toe rest, and a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting transverse rotation of said toe rest and last pin with respect to said posts, means for mounting said toe and heel posts, and rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

6. A shoe jack comprising a vertical spindle, a table adjustable on said spindle, a floating plate resting on said table, arc-shaped rails mounted on said plate, a toe rest, a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting equal transverse rotation of said toe rest and last pin with respect to said posts, comprising a rotatable bushing in said toe post, a stud rotatably mounted in said heel post and carrying said last pin, and a rod engaging said stud and extending through said bushing into fixed engagement with said toe rest-whereby said rest and pin are rotatable in unison transversely of said head, means for controlling and halting such rotation, comprising a rack fixed with respect to said heel post and a detent pivotally mounted on an extension of said last pin to selectively engage said rack, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

'7. A shoe jack comprising arc-shaped rails, a toe rest, a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting equal transverse rotation of said toe rest and last pin with respect to said posts, comprising a rotatable bushing in said toe post, a stud rotatably mounted in said heel post and carrying said last pin, and a rod engaging said stud and extending through said bushing into fixed engagement with said toe rest whereby said rest and pin are rotatable in unison transversely of said head, means for controlling and halting such rotation, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

8. A shoe jack comprising arc-shaped rails, a toe rest, a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting equal transverse rotation of said toe rest and last pin with respect to said posts, means for controlling and halting such rotation, comprising a rack fixed with respect to said heel post and a detent pivotally mounted on an extension of said last pin to selectively engage said rack, means for mounting and longitudinally adjusting the spacing of said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

9. A shoe jack comprising are shaped rails, a toe rest, a last pin, toe and heel posts supporting said toe rest and last pin respectively, means permitting equal transverse rotation of said toe rest and last pin with respect to said posts, means for controlling and halting such rotation, means for mounting said toe and heel posts, and pairs of rollers secured to said last named means and extending into rolling engagement with the concave surface of said rails whereby said shoe is longitudinally rockable past said head.

10. In a shoe jack, a pair of arcuate rails disposed with their concave surfaces upward, means for supporting said rails in parallel relationship, a carriage, a toe rest and last pin adjustably mounted on said carriage for transverse rocking movement, means for locking said toe rest and last pin in a selected rocked position and means adapting said carriage for longitudinal rocking motion, comprising pairs of flanged rollers mounted on said carriage to roll on said rails, and a follower mounted on said carriage and extending under said rails to maintain the carriage in operative position on the rails.

11. In a shoe jack, a pair of arcuate rails disposed with their concave surfaces upward, means for supporting said rails in parallel relationship, a carriage, a toe rest and last pin adjustably mounted on said carriage for transverse rocking movement, and means adapting said carriage for longitudinal rocking motion, comprising pairs of flanged rollers mounted on said carriage to roll on said rails, and a follower mounted on said carriage and extending under said rails to maintain the carriage in operative position on the rails.

12. In a shoe jack, a carriage having a toe rest and last pin mounted thereon for rocking movement transversely of the carriage, and

means supporting said carriage for longitudinal rocking motion, comprising pairs of flanged rollers mounted on said carriage, a pair of parallel arcuate rails forming ways for said rollers and a follower secured to said carriage and extending under said rails, said rails being mounted on a freely shiftable floating plate.

13. In a shoe jack, a carriage having a toe rest and last pin mounted thereon for movement transversely of the carriage, and means supporting said carriage for longitudinal motion, comprising pairs of flanged rollers mounted on said carriage, a. pair of parallel rails forming ways for said rollers and a follower secured to said carriage and extending under said rails, said rails being mounted on a freely shiftable floating plate.

14. In a shoe jack, a carriage having a toe rest and last pin mounted thereon for movement transversely of the carriage, and means supporting said carriage for longitudinal motion, comprising pairs of flanged rollers mounted on said carriage and a pair of parallel rails forming ways for said rollers, said rails being mounted on a freely shiftable floating plate.

15. In a shoe jack, a pair of rails, means for supporting said rails in parallel relationship, a carriage, a toe rest and a last pin adjustably mounted on said carriage for transverse movement, means for locking said toe rest and last pin in a selected transverse position, means adapting said carriage for longitudinal motion, comprising pairs of flanged rollers mounted on said carriage to roll on said rails, and a follower mounted on said carriage and engaging said rails to maintain the carriage in operative position on the rails.

16. In a shoe jack, a pair of rails, means for supporting said rails in parallel relationship, a carriage, a toe rest and a last pin adjustably mounted on said carriage for transverse movement, means for locking said toe rest and last pin in a selected transverse position, and means adapting said carriage for longitudinal motion, comprising pairs of flanged rollers mounted on said carriage to roll on said rails.

17. In a shoe jack, a carriage having a toe rest and last pin mounted thereon for rocking movement transversely of the carriage, and

means supporting said carriage for longitudinal rocking motion, comprising pairs of rollers mounted on said carriage, a pair of parallel arcuate rails forming ways for said rollers and means engaging said rails to maintain the carriage thereon, said rails being mounted on a freely shiftable floating plate.

18. In a shoe jack, a carriage having a toe rest and last pin mounted thereon for rocking movement transversely of the carriage, and means supporting said carriage for longitudinal rocking motion, comprising pairs of rollers mounted on said carriage, a pair of parallel arcuate rails forming ways for said rollers and means engaging said rails to maintain the carriage thereon.

19. In a shoe last support for a pegging machine, a flat table, a floating plate resting on said table, said plate having transverse grooves on the bottom thereof to facilitate shifting of the plate on the table, a pair of curved rails, means for supporting said rails on said plate, a carriage, toe and heel posts adjustably mounted on said carriage, said carriage provided with rollers in rolling engagement with the concave surfaces of said rails, a toe rest, means for mounting said toe rest for transverse rocking motion on said toe post, a last pin, means for rotatably mounting said last pin on said heel post, and means for locking said rest and pin in any desired transverse position, comprising a fixed transversely extending arcuate rack and a toothed detent mounted on said rocking member and selectively engageable with said rack.

20. In a shoe last support for a pegging machine, a flat table, a floating plate resting on said table, said plate having transverse grooves on the bottom thereof to facilitate shifting of the plate on the table, a pair of curved rails, means for supporting said rails on said plate, a carriage, toe and heel posts adjustably mounted on said carriage, said carriage provided with rollers in rolling engagement with the concave surfaces of said rails, a toe rest, means for mounting said toe rest for transverse rocking motion on said toe post, a last pin, means for rotatably mounting said last pin on said heel post, and means for locking said rest and pin in any desired transverse position.

TIEN MARCUS.

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