Патент USA US2411901код для вставки
Deç. 3, 1946. B_ J, SILVER " > 2,411,901 METATARSO-PHALANGEAL BALL vCUSHION Filed Jan. 12, 1945 INVENTOR ATT'ORNEY ' 2,411,901 Patented Dec. 3, ’194,6 2,411,901 ~ ì . METATARso-PHAÈAÑGEAL BALLv ' , -V - CUSHION' , 1, ,« u applicati@ Benjamin January J .‘ Silver, 12, 19¿1,Í5„ser§ia1Nó;57Iz,4ss New York, N. f 9 anims. (01.36471)~ 2V - The invention relates in general> to a shoe, particularly tov va high arched'woman’s shoe and most'uncomfórtable situation results from wear ing'ssuch‘shoes. v » f -the invention 'relates specifically to a cushion' forming a fabricatedpart of, or designed to be Accordingly, ‘another‘and perhaps the main ob jective of this invention is to provide in a high inserted'as an attachment for suchïshoes, and heeled shoe as fabricated, or an insert for a high which cushion is of the type sometimes referred to by reason of its location as a metatarso phalangeal ball cushion, ï ~ ' y ’ The present disclosure» constitutes a develop ment of-the'metatarsal cushion disclosed in my Patent No.»2,159,054 grantedrMay 23, 1939. In the prior patent there was disclosed a pad of approximate elliptical form and Which specili heeled shoe, a metatarsal cushion which Will tend lto kavoid foot' distortion; which will cause the Wearer’s sole Whiley wearing such high heeled shoes toV approach that formv which the foot would have in walking on soft ground -and thus tend tò relieve foot fatigue now so prevalent with women and which has become 'more' pro nounced with increase in heel height. y 5 Accordingly, the invention features an adaptor cally had to be made in two forms, one forthe shoe of the left vand the other for the shoe of 15 or compensating form of cushion which While possessing all of the advantages disclosed inthe the right'foot. »'Care'had. to be exerciseduin in above identiñed patent will permit the Wearing of stalling these patented forms of pads in a shoe to the presently fashionable high heeled shoes and makesure that a'pad designed for 'a right 'shoe at thefsame, time avoid the angled distortionof was not installed ina left'shoe and the reverse. In those cases Where the kknovvn form of" pads 20 the foot> which occurs at. present when encased in shoes ofthe high heel type herein disclosed. were installed in >shoes -at the >time ofl sale ynot t , Broadly',;these objectivesA are obtained by> pro only did vcare have î'to »beeXercised by the ‘shoe viding a double-faced cushion for underlapping salesman to'be sùrethat he vdid not get a left the head ends of the metatarsals and the pad in a right shoe, 'or the reverse, but it Was not unusual for a store or shoe repair man to have 25 posterior portions of the proximal phalanges which while acting-as a filler to reduce the inf a run on one kind of pad, say left pads, and he may for the time being be out of left pads While having quite a stockon hand of right shoe pads. The present disclosure had for anobject the providing of' a single f' unitary one-piece ball cushion which can be fitted selectively into either a left or a' right shoe at the ball area by the selection of that side uppermost which Will fît 'the shoe intended,'right or left. . . ' The pad illustrated in the above patent was designed to constitute a fabricated Vor added ele ment to a Women’s shoe of conventional heel ternal anglev of the -inner sole and which angle would otherwise be assumed by the foot, also lfunctions, as does the previously patented pad -When a pad of the proper lateral bulge is in sertedin the shoe of lesser heel height such as isfdisclosed in said prior patent, to give comfort tothe wearer. f Y ~ Y ' Various other objects and advantages of the invention lWill be in part obvious from an in spection of the accompanying drawing and in part Will be more fully set forth in` the follow ing particular description of a form of insert for inner -soles, embodying the invention, and the height,` and among other things to‘give anim proved form of resiliency and increased comfort to conventional shoes' While in' use. However, 40 invention lalso consists in certain new andnovel features of construction and combination of parts modernv styles have Vcalled for very much higher hereinafter set forth and claimed.v heels, and" this has in turn developed a deep recess or concavity both laterally and longitudi nally in Vthese >highheel shoes in the'region of the metatarsal arch of-'the wearer. Obviously any such variation fromy the normal contour of the shoe producesv a vsharp ybend in the foot en»r cased in such shoesv particularly in the region of the archwith resulting strains on the foot mus-- InY the accompanying drawing: Fig. 1 is a vertical sectional view taken longi tudinally through the basic shoe with a sole modifying cushioning insert pad shown in posi ' tion located with reference to the bone structure at the fore part of the foot shown in side eleva tion in dotted outline and illustrating a preferred cles. Withthe presentftype‘of-high heeledshoes 50 embodiment of the invention; ‘ ¿l ~F1g. 2- is a plan View looking down upon the vwith their `extreme andunnatural» depression ini the mid-portion of the sole, the foot, while in such shoes, actually becomes distorted; the arches are strained» and there is a tendency for such shoes: innersole of the basic shoe and With the pad'in-` sert as‘shown in Fig. 1,> showing in dotted outline the'v bone structure Aparticularly at the headsvof to throw 'the wearer off balance and in general a 55 the metatarsal bones; . ‘2,411,901 3 4 Fig. 3 is a vertical` transverse sectional View taken on the broken line 3-3 of Fig. 1; Fig. 4 is a perspective view of the cushioning noted that it has a greater width measured along its minor axis on one side of its major axis or axis of balance indicated by the line a-b than it has on the other side, and there is thus formed a greater bulge 35 on one long side 31 than on the other long side 38. It will thus be seen that the pad and shoe shown in Fig. 2 .is for the right insert shown in the preceding figures and with one edge partly broken away to show the cross sectional configuration of the pad; and Fig. 5 is a transverse cross section of the pad in its normal fiat position before it has been bent foot. Viewed through the drawing sheet, Fig. 2 into the curved form imposed 'thereon by the longitudinal and transverse curves of the inner then in `reversev would Vshow fa 1pad Íand >shoe for Vthe leftlfoot. L ` . L y .~ face of the shoe sole. 1t is a distinctive feature of this pad, and in In drawing and referring ñrst to the basic . this it particularly distinguishes from the pad shoe construction illustrated in Figs. 1 to 3, there in the above .identified patent, is that the com is shown a conventional form of 'woman’s 'deep '.b‘ined right and left foot pad herein featured is instep shoe comprising an outer sole Il), and inner conveXo-convex, or double convex in substan sole I I with the edges of the upper I2 secured at tially all of its cross sections and is >relatively its forward portion between the soles and at its thin `compared to the other dimensions. The op rear end secured between the upper sole and the posite sides are so related that with one side top of the heel I3~ It is particularly noted that» 4uppermost it conforms to a right shoe and with the shoe has a very high or French heel I3 which, 20 the other side uppermost it conforms to the left yof course, provides a rather high elevation to the rear ends of the soles Ill and II. Therefore, por .tion 33 of the soles as they eng-agethe ground are .fiat or almost so. This means vthat the instep 3‘4 shoe of a pair. Irrespective as to which side may 'be facing upwardly the sole receiving »surface is provided at >an angle of about 45° into the flat portion 33. with three shallow recesses, depressions or pock ets, those on one side being designated I1, I8 and I9 Aand those on the opposite side being des This means that the inner sole forms an S-shaped curve in longitudinal section and which curve on ignated |11, |81, and 191, land whichever may be uppermost located to receive respectively the quite sharplyinclines downwardly and forwardly its lower side forms a pronounced depression 35 heads of the metatarsal 2m, 3m and 4m. It is which, as shown in Fig. l, forms a concaved short 30 particularly noted that the depression on one side vcurved .arc having a relatively short radius. It is opposite the corresponding depression on the is this deep depression which is having the effect 'other side. For instance recess I 1 is opposite of distorting the feet of women wearing shoes of recess |11. The cushion is so formed with an this .character and which the present disclosure outlining feathered edge 20 'that the two outside is fendeavoring to remedy, In Athat deep seated half of edge recesses or pockets, 2l and 22 on region .35 and which >otherwise _located is beneath the one side and 2I1 and 221 on the Aother side, the ball of lthe foot, there is fitted a ball or meta are found at the extreme opposite edges to» under tarsal Aarea supporting pad I4. This pad is in lap respectively the inner portions -of the heads tended >among other things to `restore the foot lt0 .0f the first metatarsal’ Im and the fifth meta wards or at least somewhat towards its natural tarsal 5m, leaving the ‘other edge portions of the walking position even when encased in the foot ball portion .of the foot .supported directly on the distorting shoe herein illustrated. This pad is of uncushioned outer edge portion ¿of the inner sole a shape somewhat irregularly >elliptical in plan as particularly shown in Fig. 3. >The centers of as shown in Figs. 2 and 4 and is located in the the three interior recesses, "I1, Iz8 and I9 or |11, shoe in position to receive the ball of the foot at y 181 and I'Sl, and the two outer half recesses 2| its advanced and relatively wide end. When and 22 or 211 and 221 4are .disposed in a >curve viewed in plan the pad is somewhat egg-shaped, which when viewed in plan as in Fig. 2 is the or differently described, is a segment of egg form. curve defined by the centers of the heads of the The pad is carefully formed with relation to the five metatarsal bones and defines what has been bone structure of the fore part of the foot, it 50 referred to herein as vthe minor axis of the pair. being noted that it entirely underlies practically The cushion has "its `maximum elevation at a point designated hp in Fig. 2 approximately just the entire second, third and fourth metatarsal bones designated respectively 2m, 3m and 4m, back of .the head of the second metatarsal bone, leaving the ñrst and fifth vInetatarsals designated or close thereto, irrespective as to Whether the respectively `Im and 5m, uncushioned or substan~ 55 right side of the pad- is uppermost in a right tially so particularly in -the case of the ñrst >meta shoe or the opposite or left side of the pad is tarsal bone Im. uppermost in a left shoe. Considered in cross The pad has its greatest transverse width or section the cushion gradually decreases in thick minor diameter in its forward portion and has its ness in all directions to the feathered edge 2G forward edge in position sufficiently advanced at 60 from the vertical line c-d shown by dots in Fig. least to underlap the heads of the metatarsal 5 defining the maximum thickness connecting bones. Considered lengthwise the pad extends the Vpoints hp and hp of maximum elevation on each face. forwardly a distance just sufiicient to underlap the ñ-rst proximal phalanges, speciñcally desig-` kThe cushion is formed as an integral one-piece nated in Fig. 2 as 2171, Sp1 and 4121, of the second, 65 article preferably formed of a cushiony material third and fourth toes, leaving all of the phalanges such as a type of rubber or rubber-like material of the first and ñfth »toes as well as the second formed symmetrical with reference to a central medial plane as shown in Fig. 5, but having suf ficient flexibility to ’be bent longitudinally as shown in Fig. 1 and transversely as shown in Fig. 3 to conform to the compound curvatures of the inner sole. Where a high degree of flexibility is desired and third pha'langes of the second, third and fourth toes uncushioned. Considered in its rear ward dimension the pad underlaps the anterior half of each of the shanks of the second, third and fourth metatarsal and as shown in Fig. 1, extends substantially to the juncture of the tarsal and the middle metatarsal bones. Considering the pad when Viewed in planas in Fig., 2, it will be s. in themarginal portion forming the feathered edge. 2D and less- flexibility and thus relative >ri 5 4 . gidity inï‘the‘1 body portion,`it`_is suggested that eeredtejnie‘ inner sere; said cushion .having its athin layer’ 40 of leather or rubbenì v'preferably hard rubber, be inserted within thepadfto pro-v vide an internal reinforcement# As -disclosed the insert is of substantially theïs'ame form-as the . cushion -in which it is contained andthe outlining edge of the insert 40 is spaced inwardly fromthe upperj’side>~` ppwardly convex in all vertical cross sections Aand` said ùpperïside >having its point of highest elevation Alockz'ated under _theyl Vshaft ofthe second metata'rsal bone irrespective as to which sidevof the cushion may be uppermost, andre ducing in elevation gradually in all radial direc-- tions from'ï'saidjpointand forwardly to a position marginal portion of the cushion so as not to in Vterminating approximately mid-length of the terfere with the-desired flexibility in the flexible feathered edge. ' It isfsug'gested that‘the pad ‘be 10 made of ,twojhalves a rightA and a lefty each with’ 2’; In.` a‘shoe, the combination of an outer sole; an inner sole provided in the region of the ball an `upper curved face" withV flat f undersides as middlefirstphalanges; shown ln the abovepatent and the'twofhalves connected together ~'either' with orfwithout -the relatively stilî inserty Ml,A > ~ ‘ ` _ y , s . y of the’foot in its upper surface and spaced from the edges lof the solefwith'a relatively deep de 15 pression rounding from sideto side in all verti-- When in position in the shoe and conforming cal cross sections; a Semi-ilexible combined to the inner sole as shown in Fig. 3 the recessesA metatarso-phalangeal ball cushion of substan-A- designated when facing upward to receivethe tially eggs-shaped plan, of convexo-convex form'> metatarsal heads also -function when facing having its curved'underside flexed under tension e downwardly to coact withthe ßinner sole to form 20' into a fit in saiddepression and secured tothe air cushioning pockets. inner sole, said cushion having its upper ,sideupf-,I Y correspond with the bulged edge of the shoe, right wardly convex in all vertical cross sections and said upper side‘having its point of,y highest ele vation located under the .shaft of the second metatarsal bone irrespective asîto _which side 'of the cushion may be uppermost, reducing in ele-Y vation gradually in all radial directions from or left as the Acase may be. said point and forwardly to a position terminat-l By means of a device of thisy character it is possible for the repair man or shoe storey to `'carry in stock one form ofl pad which can be'used either in a left or right shoe simply by reversing the pad so that the bulged edge yof the pad will As it is theusual` practice to provide these pads in several stand ard sizes the halving ofthe necessary supply con stitutes a material saving in the number of dif 25. ing approximately mida-length of the middle first ` 30 phalanges and in which the underside of the' cushion is provided with a plurality of shallow recesses in the portion thereof beneath the ball ferent kinds required. It is particularly notedY portion of the foot coacting with the portion of that the fact that theupper surface must be the inner sole overlapped thereby to form shal convex is utilized when the pad is turned upside down to accommodate itself to the deep con-` 35 low air cushioning pockets, each pocket on one face being opposite a corresponding pocket on> cavity formed in these high heeled shoes and the other face and certain of said pockets being thus tends to straighten out the curve imposed on the wearer’s foot without necessity of pro opposite certain'heads of the metatarsal bones. viding filling material p-articularly for this pur l3. A one-piece cushioning pad for the ball re It is also noted that the shallow recesses gion of the foot for use in either a right or left which are provided on the upper surface or face shoe, said pad being approximately egg-shape to accommodate the heads of the metatarsal bones are utilized when in the upside down posi» tion as air cushioning pockets and here again in plan with opposing long edges rounding one into the other, having a greater width measured pose. . providing a structural part which has two func tions depending on whether the part faces up wardly or downwardly. The Ibulk of material which forms the support of the pad provides not only the required cushion effect but also pro vides a certain degree of rigidity suii‘lcient to sup port the weight of the wearer without abnormal distortion of the pad and at the same time pro vides especially in the marginal portion that de along its minor axis on one side of its major axis than on the other side and thus forming a more pronounced bulge in one long side than in the other long side whereby the pad may be used in a right hand shoe with that side facing upwardly which will bring the greater bulge atthe right or may be used with said ñrst named 'side fac ing downwardly in a left hand shoe with the greater bulge at the left, said pad being initially convexe-convex in substantially all cross sec~ tions and with its opposing sides each being distortion of the pad to conform to the minute 55 slightly convex and having a looking glass sym metry relative to a central medial plane therebe variations in shoes, even in those shoes which are tween and relatively thin compared to its width intended to be of the same size. It will be un and length dimensions and having suillcient flex derstood that the use of the leather or rubber . ibility to conform to the shoe in which it is irl insert is optional and is used only in those situa tions where the rubber or other cushioning ma 60 tended to be installed. 4. A one-piece cushioning pad for the ball terial used -to form the cushion fails to provide region of the foot for use in either a right or left the requisite degree of rigidity in the weight sup gree of flexibility which will permit the marginal shoe, said pad being approximately egg-«shape in plan with opposing long edges rounding one intol 1. In a shoe, the combination of an outer sole, 65 the other, having a greater width measured along porting portion of the cushion. I claim: an inner sole provided in the region of the ball of ythe foot in its upper surface and spaced from the edges of the sole with a relatively deep de pression rounding from side to side in all verti cal cross sections, its minor axis on one side of its major axis than on the other side and thus forming a more pro nounced bulgein one long side than in the other long side whereby the pad may be used in a right a semi-flexible combined 70 hand shoe with that side facing upwardly which will bring the greater bulge at the right or may be used with said first named side facing down wardly in a left hand shoe with the greater 'vex form having its opposite surfaces of identi bulge at the left, 'said pad being convexo-con cal contour with its curved underside ilexed un# der tension into a lit in said depression and se 75 vex in substantially al1 cross sections and rela >metatarso-phalangeal ball cushion normallyY of substantially egg-'shaped plan of convexo-con 2,411,901 i aveiytnm comparent@ its >Width and;img_gtn-jci.-I rnensidns',A having suiiici‘ent :flexibility fto - conform` toA theshoein which it isintended to be installed and in which'each sideface is provided with a plurality of shallow recesses, at 1east„three for receiving >the heads'of the three middle meta talfsal bones, the recess/for receiving the head 8 irrespective -as tol which‘side of thepad may be in kengagement with the sole of the wearer and thus the highest ~point on one> side is in trans verse alignment with the highest point of eleva tion on the other side. v S. A shoe cushion for use asa support for the metatarsal arch comprising ya pad substantially of the second metatar-sal bone when one side is ellipticalin plan,wider at one end than the other uppermostv in a left shoe being oppositev the and with a greater bulge on oney side of said wide recess for receiving the head of thesecond meta 10 end than on thevother side thereof, having its opposite; faces slightly convex to. form the pad tarsal bone when the other side is uppermost in ` a right shoe. , pfA convexe-convex form» and having a degree of 5.3 A one-piece metatarsal arch pad forming a flexibility to` permit the'underside of the same segment of an egg-shapedform and provided on to confor-my to the contour of the inner sole of one `sole receiving face with three shallow de 15 the shoe and said cushion exhibiting a maximum pressions spaced apart transversely and along degree of flexibility in its marginal portion said opposite sides being normally convex Vand sym the minor axis and located to receive the portion of the sole of the wearer immediately beneath metrical with reference to a central medial plane and a thin «layer of reinforcing material located the heads ofv the second, _third and fourth metaf tarsal bones of one foot when said side is facing 20 in said medial plane, confined to the portion of the pad of maximum thickness and having its upwardly in aleft shoe and provided on its oppo edges spaced inwardly from said flexible marginal siteisurface with three shallow depressions spaced portion. 1 , apart transversely and along the minor axis and 9. _A.shoe havingiits sole engaging surface more located to receive the portion of the sole‘of the wearer immediately beneath the heads of the 25 nearlya straight-angle in the region beneath second, third and- fourth metatarsal bones of the the .heads of the metatarsal bones than the outer other foot when said opposite side is uppermost sole forms in this region, and said'sole engaging surface provided with at least three shallow de in a right shoe and said pad being conveXo-convex incross' section along substantially all cross sec pressions for receiving the heads of the three tions. , ' middle metatarsal bones substantially elliptical 6. The structure defined in claim 5 in which the outlining marginal portion forms a feathered in plan and having its point of highest elevation edge with the portion thereof at the minor axis fashioned to receive at least the inner portions of the heads of the first and fifth metatarsal bones irrespective as to which side is facing up and reducing inelevation in all directions from said point of highest elevation and said surface in the area- of said bones being more resilient and thus providing a greater cushioning effect at said ward. '7. rlí’he structure defined in claim 5 and in which area than in more remote lportions. of the sole the pad has its point of highest elevation located under the shaft of the second metatarsal bone 40 back of the head of the second metatarsal bone engaging portions. BENJAMIN J. SILVER.