US1532861A - Apparatus for attaching shoe parts - Google Patents

Description

April 7, 1925. 1,532,861

, R. E. BARTELS APPARATUS FOR ATTACHING SHOE PARTS 1922 3 Sheets-Sheet l l 4f if? mi;

April 7, 192s.

R. E. BARTELS APPARATUS FOR ATTACHING SHOE PARTS 3 Sheets-Sheet 2 "'zf @i- Flled June f i :f

April 7, 192s. 1,532,861

R. E. BARTELS APPARATUS FOR ATTACHING SHOE PARTS Filed .June 9, 1922 s Sheets-sheet s A fz,

Patented Apr. 7, 1925.

UVE

srarss aren-r REINHARD E. BA'RTELS, OF LYNN, MASSCHUSETTS".

APPARATUS FR ATTAGHN-G SHOE PARTS;

Application filed. June 9., 192,2,4 Serial No. 567,068.

To ZZ whom t may Gomera;

Be it known thatl, REINHARD E. Ban'rnns,

a citizen ot the United States,. residing at Lynmin the county of Essex and State oi h/iassachusetts, have invented new and usc- :tul improvements in` Apparatus for Attaching Shoe Parts, of which the following is a speciiication. l

rlhis invention relates. to apparatus for attaching shoe partsbeing more particularly intended for attaching` shank s tiffeners to soles or to shank pieces of turnv shoes and' is adapted to be used in connection. with a.

"footpower hammer.

The present application is y in part of application Serial No. 376,633 Filed' Apr-U26, 1920 for apparatus for locating; shank stiff'enersin shoe soles.

The break line on the turnfshoe shank has no definite location and is arbitrarily deter-- mined by the manufacturer. That is.. inV placing the shank in thevshoethe manufacturer may extend the forward. end of the shank as :tar forward of theA break line of the slice as his `fancy or judgment. may dictate. ln view of the arbitrary location ot the break line asset forth above, the position of the forward end ofy the shank stiffener on the shank may bev determined by measuring rearwardly from the forward end.

or" thev shank adistance equal to thedistance of the break line therefromiplns the distance that the forward endV of the stiifener is-tlo be positioned back of the break line. certaining this pointor one. shank o a.I lot to be made up in a certain way, the pointniay be located mechanically for the restof that particular lot by using the-apparatus of this invention..

For a more complete understanding of;

this invention reference may be had to the` accompanying drawings in which:

'Figure l isa top plan of theapparatus;

Figure 2 is a section on line 2-2 off Figure Figure 3. isa section on line 33of Figure o a stiifener thereon.

Figure 5 is a. section of the same molded a continuation` Figure i is a plan of a shank piece withformed prior to attachment to the sheh.

with alongitudinal' ridge extending to withf in a short distance. of the end thereof.

A form of stiiiener to be used with a turn shoeshank is illustrated: at #i2 in Figure G,

the longitudinal' ridge being indicatedY by.

the reference numeral. i3 and,y the securing` tiinesl by the numeral 44. It will be noted that thesel tines` entend Jrom theY opposite side of the shank stiii'ener from that on which the ridge is located;

Referring-to Figures l to 3' and '7 to. 9, indicates a hat'. plate onk which the turnl shoe shank is to be placed.L and which isprovided with' means for holding the shank. stii'liener in fixed. position thereon. This means comprises; a support for the shank sti'ii'ener preferably' formed by cutting ai slot 5l: (see: Figures 2 and 3)' longitudinally. through the plate and covering said. slot with a thin sheet of metal 525. as brass, aluminum, or the like,y formed with a. longitudinal depression. 53' therein. rlhe purpose of this depression is to receive the` ridge oi' the shank stiifener when said stiliener is placed onv the plate, as will hereinafter be set forth. Bordering the slot 51 onv three sides isa U-shaped brace member dwhich serves to hold the sheet ot metal in place and preventsV lateral displacement of the shank stiffener, when Aplaced on the plate. This' brace member may be Jformed integral with` theplate but is preferably made separately and attached thereto in some suitable manner as by a screw or the like, see Figures lA and 2 ofthe drawings).

Located a short distance in front of the brace member 53 is ank abutment' member 55 against which the lforward end of the shank stiffener abuts when placed between the arms oi the l-shaped brace member' in position to he at ached to the shank. The iii-shaped mer ber 54 may be made longitir dinaliy adjustable to adapt it to confine the shank stitfener in its position abutting against the member 55 if so desired.

The plate is also provided with suitable guide members for positioning the shank in proper relation above the shank stili'ener to be attached thereto. rlhere may be any suitable number of these guide members, three being shown in Figure 1, comprising an end guide member G in front of abutment 55, and two side guides 57 and 58. The guide members are L-shaped, having long arms which lie against the plate, and short abutment arms 56a, 57a, and 58a which project upwardly therefrom forming abutments against which the shank is placed in positioning it above the shank stittener. The guides are provided with suitable means whereby they may be adjusted to a shank ot any dimensions and to position the same with its longitudinal median line directly above that ot' the stiiener. As shown in ,JWM/Tigre 1, this means comprises slots ll5 in the long arms of the guide Aand set screws 46 located in said slot and screwed into the plate.

With shanks to be treated alike, the operation is as follows: The distances on the shank relative to the break line, as indicated above is determined and measured forwardly on the plate from the rear of the abutment member and abutment arm 56a placed at this point, and the side guide members 57 and 58 are set so as to position the shank above the shank stiftener in order that the longitudinal center lines of both of these members will coincide. When the device is so set, a shank stiliener is slipped into place with the tines extending'upward and a shank is placed thereabove abutting the brace members in the manner, as set forth abo-ve, and is struck with a. hammer at a point above where the tines are located.

ln Figures 7 and 8, are shown one form of foot power hammer with which this form of my plate is adapted to be used. The foot power hammer comprises a base member 60 mounted on a suitable support as on a table or bench 61, which is in turn supported at some distance from the floor or ground by means of legs 62. Extending upwardly and then forwardly from the base member is an arm 6d terminating in a sleeve 65. Slidably mounted in this sleeve is a hammer rod 63 on the lower end of which is a hammer Z17. The hammer rod 63 is guided in its sliding movement in th-e sleeve 65 and prevented from rotation therein, by means oi a lug 65a, riding in a groove 65c in the rod 63. The lug 65a is formed integral on the end of a set screw 65b screwed into an aperture in the sleeve 65.

The plate 50 is so positioned on the base of the machine that when a stiilener is placed on the plate as indicated above, the tines on the front end thereotl will vbe di- Lssasei Y Y s rectly beneath the hammer 17, and may be secured in this position by any suitable means as by av bolt 66.

The hammer is actuated by means of the following mechanism: A lever 69 is pivoted on the arm 6a between ears 70, and-is provided with aV forwardly extending arm 68 and a rearwardly and downwardly extending arm 71. rthe upper end of the Yhammer rod 68 is slotted at 67 to receive the torward end of arm 68 which rides loosely therein. rlihe arm 71 is curved forwardly at its lower end at 79., and entends under the bench or table into position to be conveniently struck by the foot of the operator. lil/lien the operator strikes he member 72 the hammer is brought down upon the shank, driving the tines of the shank stiffener therethrough thereby attaching' the two members together. A bui'ier 7 5 of rubber or other esilient material may be so placed on the table as to minimize the shock of the lever arm 71 when it abuts against the table.

in practice, it is desirable. in this operation to attach the shank support to a turn slice Ashank only at the forward end and seeurely enough for the two members to remain attached in proper position relative to each other, until the shank, which at this stage is in the form of a vliat blank, can be molded into a suitable shape to be placed in a shoe. The shank stitlener is fastened securely in place in the molding of the shank to form.

Under some circumstances, however, it is desirable to attach the shank still-ener to the shank at both ends in the initial operation and by a single .operation ot' the machine. I accomplish this by usine' a double hammer, suoli as is illustrated at 76 of Figure 9, with the two heads 77 and 78 spaced a distance apart equal to the distance between the forward and rearward tines of the shank stiffener.

ln Figures 10 and 11 is shown a form apparatus by which shank stiiieners, as shown in Figure 12, may be attached to shoe soles by means ot a hammer such as shown in Figures 7, 8, and 9. A plate 10 is recessed at so as to receive and retain in position a shank stiliener ot the form shown in Figure 19. with its sole-attaching tines extending upwardly. A locating plate 17 is slidable in guides 20 and 21 on this plate in a direction longitudinal of the recess 9-0 and determines the position of the sole shown in dotted lines in Figure 16 lengthwise ot the recess, while a laterally adjustable guide 93 may be used to center the sole laterally relative Vto the stitl'ener in the recess 90. The plate 17 may beclamped in lined position by means of bolt. clamp 26 having an operating handle 27.

@ne of the guides, as 20, is preferably provided with a scale,y the graduations corforming to shoe sizes, while the locating plate may have incorporated thereon graduations corresponding to styles so that by bringing the proper style mark intoregistry with the size mark, plate 17 is positioned properly to receive a sole of that style and size correctly positioned relative to the stiffener in the recess 90. It is also evident that plate -50 and guide 56 of the apparatus for turn shoes shown in Figures l to 3 and 7 to 9 may have similar size and style graduations thereof if desired.

Where the sole or shank piece is made of comparatively dense material such as certain grades of leatherboard, a hammer with a solid striking face cannot be used satisfactorily, the attaching tines being crushed or bent down by the hard material without penetrating it sufficiently to become properly attached. ln such cases the hammer may be formed as shown in Figure 13 in which the striking element 470 is provided with a transverse slot L7l positioned to bear on the sole or shank piece directly above the tines. This construction furnishes a recess which permits the material over the tines to give way when the hammer strikes so that the tines are permitted to pass therethrough. rlhis construction, of course, is applicable to both the single and double hammers above described.

Having thus described embodiments of this invention it should be evident to those skilled in the art that many changes and modilications might be made therein without departing from its spirit or scope as defined by the appended claims.

l claim:

l. A device for attaching a shank stift'- ener to a shank in a desired position thereen, comprising a plate with means thereon for holding the stifener in lined posit-ion, means for positioning the shank above said shank stiflener in a predetermined position relative to said shank stiffener, and power means associated with said plate for attaching said stiffener to said shank.

Q. A device for attaching a shank stiffener provided with att-aching tines to a shank in a desired position thereon, comprising a plate with means thereon for holding the stiiiener in lixed position, means for positioning the shank above said shank stiffener in the desired position relative to said shank stilfener, and a power hammer associated with said plate in such position that the hammer may be brought down on said shank to force the tines of the shank stithrough the shank for attaching the parts together.

3,'An apparatus of the class described, comprising means for holding in relatively assembled positions two members comprising a shoe part and a stifener, said stiflener having attaching elements at each end, and a hammer having a pair of spaced striking heads actuable to strike one of said members opposite the attaching means at both ends of said stiifener to fasten said members together.

il. An apparatus of the class described comprising means for holding in relatively assembled relation a pair of shoe parts, one of said parts having spaced elements for attaching it to the .other of said parts, a hammer having a pair of spaced striking heads movable toward and from said parts opposite said elements, and a lever engaging said hammer and actuable by the operator to cause said hammer to strike said parts and attach them by means of said elements.`

5. An apparatus of the class described, comprising means for holding in relatively assembled relation a pair of shoe parts, one of said parte having an element constructed to penetrate the other of said parts to attach said parts together, and means for forcing said parts together including a member for engaging` the other of said parts recessed opposite said element.

6. An apparatus of the class described,` comprising means for holding in relatively assembled relation a pair of shoe parts, one of said parts having an element constructed to penetrate the other of said parts to attach said parts together7 and a hammer actuable to strike said other part to cause such penetration, said hammer being recessed opposite said element to permit the material of said other part to yield to the passage of said element.

7. A device of the class described comprising a plate having a slot therein, a cover for said slot comprising sheet material pressed to conform to the convex face of a shank stiffener molded to a lateral curvature and having upwardly extending attaching tines, means for holding a shank above said stiffener in predetermined relation thereto, and means to force said shank against said stiffener to cause said stiffener to become fixed thereto by said tines.

In testimony whereof I have aliiXed my signature.

REINHARD E. BARTELS.

Images