US1633449A - Detachable-heel construction - Google Patents

Description

' 1,633,449 M. MAYOROWITZ r DETACHABLE HEEL CONSTRUCTION June 21 192.7.

' Filed May 1. 1926 2 Sheets-Sheet 1 INVENTOR June 21, I927.

M. MAYOROWITZ DETACHABLE HEEL CONSTRUCTION I Filed May I. 1926 2 Sheets-Sheet 2 Tar c115.

I 1 1 .12. I 113. V

INVENTOR Ila wine Maya/"0105 52.

ATTORNEYS Patented June 21, 1921,

' v 1,633,449 PATENT OFFICE.

, 'muarca mxonowrrz, or miw Your, NIY.

renownnear. cons'rnuc'non.

' Application mm Kay 1, 1m. semi m.- 100,147.

- This invention relates to improvements in 'detachableheel constructions.

, 3 An object of the, invention isfto' provide a new and improvedv detachable heel arranged to permit a'dea'ler in boots and shoes "leather heel .or with 'a rubber heel or a heel loffpther material ,;according to the desires of the customerfl v Another object is to enable the user of a boot or shoe to readily replace "a worn-out vheel byanew one.

A further object is to securely hold the I detachableheel in place and to prevent mois-,

'ture, dust or other extraneous matter from passing into the joint formed between the detachable heel and its support.

In order to accomplish the desired result,

use is made of a plate attached to a lift secured'to the sole of the boot or shoe, the plate being provided with longitudinally extending bayonet slots, a detachable heel provided with headed studs engaging the said bayonet slots, and removable fastening means extending through the sole, the sole lift and plate and engaging the said detachable heel. Use is also made of springs struck upon the plate and surroundin the terminals of the said bayonet slotsto engaged by the heads of the said studs to draw the detachable heel firmly against the sole lift.-

A practical embodiment of the invention is represented in the accompanying drawings forming a art of this specification, in'

which similar 0 aracters of reference indicate corresponding parts in all the yiews.

Figure 1 is a pers ective view, showing a pair of shoes on the eet of the user equipped with my improvements;

Figure 2 is a perspective view, showing the heel lift removed from the sole plate;

. Fi re 3 is a view in longitudinal section, showing my improved heel lift in operative position;

Figure 4 is a view in transverse section, on the line 4-4 of Figu re 3; Figure 5 is a view in transverse section v on the line 5-5 of Figure 3;

Figure 6 is a fragmentary view in section, showing my improved coupling means disassoeiated; t

Figure 7 is a plan or face view of the sole plate before it is secured to the heel;

Figure 8 is a fragmentary viewiin front elevation of the heel, showing the lap elevated T Figure is of seat for a 100 ing pin;

Figure.10 is a view in section on the line Figure 11 is a-plan viewfof a modified form of heel lift;

lan view of a modified form Figure 12 is a view in section, on the line 12-12 of Figure 11;

Figure 131511, fragmentary view in section illustrating a modification;

lgure 14 is a view in longitudinal section, similar to Figure 10 but illustrating another modification.

, 1 represents theheel of a shoe or slipper,

which maybe of any suitable material and WlllCh is provided at its lower end with a spacer 2' that may be secured to the heel in any approved manner and may constitute a single piece or. several pieces and be of any suitable material, in accordance with the desire of the trade.

3 represents my improved removable heel lift, and my invention resides in the means for connectin the lift and the heel, or, more specifically, t e lift and the spacer which constitutes a fixed part of the heel.

lReferring more particularly to Figures 1, 2, 3, 4,5, 6, 7 and 8, i-represents a sole plate, which is of metal of suitable thickness and of the desired resiliency and strength for the work to be performed.

This plate 4 conforms in shape to the lower end of the heel and is secured to the heel by nails 5 driven through openings 6 in the late 4 and into the heel. The late is furt er secured in place by means 0 an integral extension 7 located at the front edge of the" late and adapted to be bent at substantia 1y right angles to-the plate along the dotted line 8 in Figure 7. v

At the free end of this extension 7 spurs 9 are provided which are bent' at right angles to the extension and are forced into the front of the heel, as indicated at 10 in Figure 3. This extension 7 is provided with a nail receiving opening '50- and with a larger 0 ing 11 for a purpose which will more lly hereinafter appear.

Theextensmn 7 is completely covered by a lap 12 which is secured to the front face of the heel in anyapproved manner, but I preferably employ an adhesive in addition to other securing means, which will be hereinafter explained;

The sole plate 4 is provided with a lurality of spring seats 13 with bayonet slots 14 communicating therewith. The smaller ends of'the bayonet slots 14 are located at the center of the seats 13 with the larger ends of the slots in the flat ormain portion of the sole plate. I may employ any desired number of these spring seats, but I have illustrated three which I find are ample for the purpose although I do not Wish to be limited to any particular number.

These s ring seats are formed by upwardly off-setting the metal of the plate 4, and are made with centraldepressions 15 therein. These spring seats 13 may be outlined throughout a portion of their circumference by a slot or slit 16. which gives the effect to the seats of independently upwardly movable spring tongue carrying seats. The exact form of these seats may vary as. for example, in Figures 9 and 10 I show a seat 17, corresponding to seat 13, which is integral with the plate 4'; or, in other words, the slit or cut 16 is omitted.

In Figure 14 I illustrate an integral seat 18 which has no central depression, and this constitutes a modified form of my invention.

The plate 4 ,is also formed with a looking spring finger 19, which is stampedor cut from the central portion of the late 4, extends transversely of the plate, and has a downward resilient tendency so that the normal position of the free end of this finger 19 is below the lower face of plate 4. The spring finger 19 has an opening 20 therein adjacent its free end and is formed with an upwardly offset portion constituting a cam 51 located intermediate the ends of the spring finger, for a purpose hereinafter described. I

The heel lift 3 will of course conform in general contour with the contour of the heel and maybe made of any desired thickness and also of any suitable material. As a matter of fact, it is my intention to make these lifts of various materials, such as leather, rubber or a combination of material, so that the wearer can replace not only a worn lift but can also substitute any other type of lift desired.

Each lift is provided with headed studs 21. corresponding in number and relative location to the number and location of the spring seats 13. Another pin 22. which is without a head, is also carried by the lift 3 and is so located that when the parts are in coupled relation this pin 22 will be in the opening 20 of spring finger 19. I may, of course. make this lift in various ways and do not wish to be confined to any particular manner of forming the same nor to the specific means for supporting the pin.

In Figure 4, I illustrate the lift 3 as having a plate 23 embedded in the material of the lift and upwardly offset at suitable points, and to these upwardly offset parts of the lift the pins may be riveted, as shown at 24. Above the upwardly offset portions of the plates 23, the material of the 11ft is cut away or omitted, leaving recesses 25, and

portions of this upper face of the lift may be cupped or recessed, as shown at 26 in Figure 6, so as to. act as suction cups to grip the surface of the sole plate 1 and aid the coupling pins and seats in the perfect securing and holding of the parts in coupled relationship.

I would call particular attention to Figures 3 and 8 of the drawings, wherein it will be noted that I secure an eyelet, which is of course a rivet 27 in registering openings in the lap 12, and in the opening 11 of extension 7 a conical or tapering guide 28 constitutes a part of the eyelet 27 and is so located as to admit a pin or other instrument into position to engage the cam 51 of spring finger 19 to elevate the free end of the spring finger, lifting it off of the pin 22 to allow" the heel lift 3 to be removed. I

In the modification illustrated in Figures 11 and 12, the lift 3 is provided with a plate 29, secured or embedded therein, and carrying the coupling pins, as shown. This plate 29 may have spurs 30 of a length to extend entirely through. the lift and be upset at their lower ends, as shown at 31, or may be otherwise secured in place.

Figure 13 illustrates another form of device, showing a pin 21 which is projected through the lift 3 and has its lowercnd spread or ex anded, as" shown at 32 and this pin also as a fixed flange 35 ad acent its upper end which is embedded in the material of the lift. In this modification, the pin 21 is shown cooperating with a spring finger 33, eorres ending to the spring finger 19 except that t is finger 33 is shorter and has an upturned end 34 against which the pin 21 bears to prevent retrograde movement of the'hcel lift to uncouple the same from the sole plate.

The operation of coupling or connecting the lift to the sole plate is as follows: The headed pins 21 are moved through the larger ends of the slots 14, with the pin 22' resting on the spring finger 19. While the lift is pressed tightly against the sole plate 4 it is given a sidewise or lateral movement, causing the heads of the-pins21 to ride over and onto the spring seats 13, thus drawing the spring seats downward against their inherent resiliency or tension, and when the heads of the pins ride into the sockets or depressions 15 of the seats and the pin 22 rides into the opening 20 of spring finger 19 the parts will be securely held and accidental displacement absolutely prevented. When the parts'are in coupled or locked relationship, the lift is held not only by the spring tension of .the spring seats 13 but there is a binding action betweenthe surfaces of the plate 4 and the lift 3. This ion may be augmented by the recesses 26, illustrated in Figure 6, which create a strong suction to further clamp the parts together. In any event, the parts are so rigidly. cou pled that they will sustain all possible strain to which a device of this kind is naturally subjected without causing the lift to be uncoupled or detached. The only way the lift can be uncoupled or detached isby the'insertion of the pin through the eyelet 27 against the cam face 51 to lift the free end of the spring finger 19 out of coupled engagement with pin 22. The lift can then be moved laterally of the heel, drawing the headed pins out of the bayonet slots 14 until the pinsare released.

A very desirable arrangement is to provide lugs-or enlargements 36 in at least one wall of each of the keyhole slots '14 adjacent the smaller end of the slot so that a certain amount ofresistance is offered to the movement of the shanks of the pins, and the pins are thereby held in the center oftheir seats with greater effectiveness.

While I haveillustrated what I believe to bethe preferred embodiments of my invention,,- it is obvious that various slight changes. and alterations might be made in the general form of the parts described without departing from my invention, and thedevicemay be employed for other uses,

, and hence Ido not limit myself to the precise details set forth but consider myself at liberty to make such slight changes and alterations as fairlyfall within thespirit and scope of the appended claims.

LA coupling, including a plate, a lift, movable spring seats cut from the plate, said movable seats being separated for a portion of their length from the plate and having bayonet slots extending transversely P of the plate, pins projecting upwardly from "the lift, and heads on the pins adapted to be moved into the larger openings of the slots and moved along the slots to the center of the seats when the lift is moved transversely relative to the heel whereby the seats are put under tension to hold the lift against the plate. v

2. A detachable heel construction, includ- ,ing a sole plate adapted to be fixed to aheel,

a lift, spring seats being detached for a por-v tion vof the length thereof from the sole plate and movable relative to the plate and having bayonet slots extending transversely of the plate, the narrower ends of said slots being concentric'with the center of the seats, headed pins projecting upewardly from ing adaptedthe lift, the heads on the pins to 'be moved into the larger openings of the slots and moved along the slots to the center of the seats when the liftis moved transversely relative to the heel whereby the seats are put under tensionto hold the lift against the plate, aheadless pin carried by and projecting upwardly from the lift, and a spring finger having an openin receiving. said headless pin to hold the li ft against lateral movement.

3. A detachable heel construction including a sole plate adapted to be fixed to a heel, a lift, spring seats carried by the sole plate and movable relative to the plate and having bayonet slots extending transversely of the plate, said seats being detached from the plate for a portion of the length of the slot, pins projecting upwardly from thelift, heads on the pins adapted to be moved into the. larger openings in the slotsand along the slots,-to the center of the seats when the lift is moved transversely relative to the heel whereby the seats are put under tension" to hold the lift against the plate, lugs integrally formed with the seats ad acent the narrow ends of the slots, said lugs frictionallyengaging the pins and tending to hold the pins in the narrow ends of the slots, and releasable means for holding the lift against lateral movement. v

4. A detachable h 1 construction, includingaso le plate adaptedto be fixed. to a heel, a lift, movable sprin seats cut from the sole plate andhavln'g1 a onet slots extending transversely of t e p ate, said seats being detached from the sole plate for a portion of the length of the slot, the narrower ends of said slots being. concentric with the center of the seats, pins projecting upwardl from the lift, heads on the pins adapte to be moved into the larger 'openingsof the slots and moved along the slots to the center of the seats when the lift is moved transversely relative to the heel whereb the seats are put under tension to hol the lift against the plate, a in on the lift, and a spring finger on the plate adapted toengage said last-mentioned pin and hold the lift against lateral movement, a cam on the spring finger, and a guide in the heel .for the admission of a tool to engagethe cam and lift the finger out of locked e gement with the lastmentioned pin w ereby the lift may be moved to its releasing position.

5. A detachable heel construction, includ-' ing a sole plate adapted to be fixed to a heel, a lift, spring seats struck from the sole plate and havingl bayonet slots extending transversely of .t e plate, the narrower ends of said slots beingconcentric with the center of the seats, pins projecting upwardly from the lift, heads on the pins adapted to be moved into the larger ope nings of he slots and moved along the slots to the center of the seats when the lift is moved transversely relativewtofthe heel whereb the seats are put under tension to hol the lift. against the plate,.an ex tension on the plate adapted to be" fixedlyand covering said extension, said extension and laphavmg registering openings therein, an eyelet in said openmg, a guide carried by the eyelet, and a spring finger locking the lift against lateral movement and adapted to be engaged by an instrument projected through said guide to engage the nger and elevate it from its locklng position.

6. A detachable heel constructionincluding a sole plate adapted to be fixed to a heel, a vulcanizable heel lift, sprin'g seats struck from the sole plate and having ba onetslots extending transversely of t e plate, an anchorin plate imbedded in the material of the li t and having upwardly offset portions, pins carried by said upwardly offset plate and pro1ecting upwardly from the ift, and heads on the pins cooperable with the bayonet slots, said lift having recesses in its upper face around the pins thereof and overlying the upwardly ofiset portions of the anchoring plate whereby the weight is transmitted to the body of the heel. and

is not applied to the upwardly offset portions of the anchorin plate 7. A detachable hee construction, including a sole plate adapted to be fixed to a heel, a lift, spring seats struck from the sole plate and havin bayonet slots extending transversely of t e plate,v the narrower ends of. said slots being concentric with the center of the seats, ins projecting upwardly from the lift, and heads on the pins adapted to be moved into the larger openings of the slots and moved along the slots to the center of the seats when'the liftis moved transversely relative to the heel ortions of said anchoring ing a sole whereby the seats are put under tension to hold the lift against the plate, the metal of said plate-around a portion of the seats being slit whereby the seats arefree to-move relative to the plate.

8. A detachable heel constructi n including a solevplate adapted to be xed to a heel, a vulcanizable heel lift, movab1e spring seats cut from the sole plate and having b yonet slots extending transversely of the p ate, said seats being detached from the sole plate for a portion of the length of the bayonet slot, an anchoring plate imbedded in the material of the lift, pins carried by said anchoring plate and projecting upwardly from the lift, and heads on the pins cooperable with the bayonet slots.

l 9. A detachable heel construction includlate having openings adapted to receive astening devices'to aid in Se: curing it to the heel, said sole plate also having an extension projecting an 'ularly from the sole plate and adapted to be disposed flush up against one face ofthe heel, said extension having spurs at its extremity designed to be driven into the heel, a lift,

and releasable means for securing the-lift to the sole plate.

10. A detachable heel construction including a sole plate adapted to be fixed to a heel, a heel lift, said sole plate bein provided with bayonet slots,.the metal of t e sole plate being cut adjacent an end of a slot to provide a movable seat, an anchoring plate carried by the lift, pins supported by the anchoring plate and projecting outwardly from the lift and heads on the pins co-operable with the seats for aiding in securing the length of the soleplate.

I MAURICE MAYOROWITZ.

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