Патент USA US2137459код для вставки
‘Nov. 22; 1938. ‘A. E. PIEKENBROCK‘ 2,137,459 SHOE OONSTRUCT ION Filed fab‘. 35, 1937 s Shéets-Sheet 1 1/2/0057 Z: Ewe/mm”; M RQQW Nov. 22, 1938.. A. E. PIEKENBROCK 2,137,459 SHOE CONSTRUGT ION Filed Feb. 25, 1937 ' . 3 Sheds-Sheet 2 , WW Nov. 22, ‘1938.. -‘ 2,137,459 ' A. E. PIEKENBROCK' SHOE CONSTRUCTION Filed Feb. 25, 1957 ' 3 Sheets-Sheet 3 Patented Nov. 22, 1938 2,137,459 UNITED STATES PATENT , OFFICE 2.137455% ’ ' ‘ SHOE‘ CONSTRUCTION . Anthony E. Piekenbrock, Dubuquc, Iowa, assignor to Albert F. P??’ner, Chicago, Ill. Application February '25, 1937, Serial No. 127,749 7 Claims. (CI. 36-76) The present invention relates to shoe construc tions and particularly to improvements in longi tudinal arch supports. This is a continuation-in-part of my co-pend ing application, Serial Number 90,764., ?led July 15, 1936. = - - ‘ It is one of the objects of the invention to pro-‘ duce a shoe which will support and strengthen the longitudinal and transverse arches of the foot and prevent the same from flattening or sagging. ' Another object resides in providing a shoe with a supporting structure which is built into the shoe between the inner and outer soles and prevents the shoe and particularly its shank portion from being deformed under the weight of the wearer and the pounding, bending, grinding; and tear ing stresses to which a shoe is exposed when in use. 20 supports the insole, the insole lips, and the por tions of‘the lining, the counter, and the upper which are stitched to the insole lips by means of the inseam, and which particularly protects the inseam itself from breaking. Another object consists in molding the outer solelso as to follow the lower contours of the insert, and to ?t snugly over the same and con ceal the same. i The invention includes still another object which resides in shaping and dimensioning the insert and‘ the shank portion of the outer sole so that the arch supporting portion of said outer sole is only partly in contact with the ground although it’ supports the entire shank portion 15 extending from a line adjacent and toward the rear of the ball portion toward the forward edge of the heel portion. ‘ A further‘ object resides in combining an arch supporting insert of the type described with a 20 steel insert which extends a certain distance into the heel portion of the shoe and is secured i It is another object to enlarge the normal sup porting surface of the shoe which is in contact with the ground and to maintain the said sup porting surface at an even level with the heel of . intermediate the outer and inner soles thereof the shoe. for increasing the stabilityv of the supporting ‘ A further object consists in providing a shoe with a substantially incompressible'built-in arch support. Still another object resides ‘in con structing a shoe in which the toes of the foot have the tendency to lie parallel to the ground and at a substantially even level with the ball ' ‘portion‘thereof when the wearer is in standing structure. ‘ V Still further objects reside in theparticular construction of- the‘ arch-supporting insert,.1"ts particular shape and its particular positioning and securement between the outer and inner soles. These and. other objects will be described more 30 in detail in the following disclosure and be shown position. in the accompanying ‘drawings in which: - The invention has for another object to‘provide a shoe with an insole which rests evenly upon the in accordance with the invention. Fig. 1 shows a side view of a shoe constructed sole of the foot and'cooperates with an arch supporting insert to counteract the normal tend ency of the toe portion of the shoe to bend up Fig. 1. wardly. outer sole removed. Still another object is to construct a shoe in which the lower surface of the shank portion Fig. 4 is across-section along line 4-4 of Fig. 2. Fig. 5 is a bottom .view‘ similar to Fig. 3 but Without‘ the supporting insert. Fig. 6 is an enlarged rear sectional view through the shank along line 6-6 of Fig. 4. Fig. '7 is a view similar _to that of Fig. 6, but Fig. 2 is a bottom view of the shoe shown in 35 Fig. 3 is abottom View of the shoe with the extends at an even level with the ball portion of the outer sole and the tread of the heel and to a point approximately half way between the ball and the forward edge of the heel. ‘ 25 r A further object is to produce a shoe with a downward projection at the shank portion which is so shaped and constructed as to be unnotice able when the wearer rests his feet on the ground. ' along line 'l--'l of Fig. 4. ' ' ‘ Fig. 8 is a front view of the insert. inner soles of a shoe with recesses and to insert an arch support therein so as to be ?rmly and 9 is a side view thereof, and Fig. 10 is a top view of the insert. Fig. 11 is a section along line ll-|l of Fig. 9. ‘Fig. 12 is a section along line 12-42 of Fig. 9. 5 Referring to the drawings in detail, the ref erence character 2 designates, the upper of the immovably enclosed by said soles. shoe, 4 is the counter, 6 isthe lining of the shoe, It constitutes another object of the invention 50 to provide the shank portion of the outer and , A still further object resides in providing a ,shoe with a shank support which reinforces and and 8 is the welting._ These elements are of a known construction and do not need to be fur 65 2 4 2,137,459 ther described. The insole I0 is provided with a sewing lip I2 which is formed of two halves which are out out from the insole I8, bent at approximately right angles to the body of the insole and secured together. The upper 2, counter 4, lining 6, and welting 8 are secured to the sewing lip I2 by means of the inseam I6. An insert I8 of substantially rigid, incompressible, solid material such as a block of leather,_highly compressed cork, hard rubber, or the like, is se cured to the insole I0 within thechannelformedby the outer and inner portions of lip I2 so as to be snugly surrounded thereby. Insert I8, or at least its upper surface 28, is designed to extend from 15 a line 22 slightly rearwardly of a line drawn be-, tween the points on which the outside and inside balls of the foot rest to a line 24 drawn near the forward edge of the heel 26 but spaced forwardly therefrom. The front and rear channel por 20 tions of insole I0 intermediate lip I2 and adja cent the forward and rear edges of insert I8 are each ?lled out with a layer of ?lling material 28. The top layer of insert;- I8 isthusclosely sur rounded at all ,sides and built into insole II! to 25 which it may be secured 'by' cement, along its entire upper surface to prevent any movement thereof within recess 30 formed by lip I-2 and fill ing material 28. _ V g The upper surface 28 of insert I8 is shaped in 30. conformity with the longitudinal and transverse arches of the foot of :the-wearen. It is therefore of sinusoidal shape in longitudinal direction, as shown in Figs. 4 and 9 of the drawings, and of concave shape in transverse direction as shown 35 in Figs. 6, 8, and 11. The‘ forward portion of this transverse arch near the ball portion 32 of the shoe is curved only sllghtly-and substantially symmetrically, while towardthe rear the crest of the curve is located near the‘ outside of the 40 shoe, as indicated by numeral 34, in conformity with the shape of the transversearchof the foot. Insert I8 is designed to be ,of such a height that the lower surface 36 thereof ls-absolutely even with the lower surface of’ the ball portion 32 of the insole including ?ller 28. The sides 38 of, the in sert are ?aring outwardly and upwardly from lower surface “which extendsvfrom itsfront edge 22 to a line 40, drawn at approximately half the distance from the line 22 to‘ the forward edge of the heel 25. The rear side, 42 of theinsert may be of a ?aring shapesimilar tosides- 38 or inclined relative to surface 36 toward rear edge 24-.‘ View lng insert I8 from the rear, ‘for example. as in Figs. 6, l1, and 12, it will be seen‘ that the same assumes substantially a shapesimilar to a key stone. . . It is a special feature of the present invention to provide the upper surface 20 of the insert ad jacent its outer edges with‘ grooves or cut-away portions 44. The inner edges 46 of these grooves 60 are spaced a distance from each other which is equal to the distance between the inner sides of the outer and inner parts. of lip I2,- and grooves 44 are of a depth equal'to the height of lip I2 from the lower surface ,of insole III. Thus‘, insert 65 I8 can be inserted between the outer and inner parts of lip. I2 and is gripped tightly thereby. The grooved portions 44 are of such avwidth that the outer edges 48 of the insert overlap the upper 70 edge of lip I2 and the inner‘stitched portions 21, 41, and 81 of the upper, the countenand the lining, and possibly ‘also the inner stitched portion 81 of the welting. By this construction, the insert I8 supports and partially encloses lip I2 and 76 stitched portions 21, 41,161, and possibly also 81, and thereby supports inseam I6 and protects the same from braking. When the wearer of shoes in which the present invention is incorporated is in standing position, inseam I6 and stitched portions 21, 41, 61, and 81 are supported solidly on the ground and the weight of the wearer tends to increase the vise-like action of the outer por tions 50 of the insole and the projecting portions 52 of the insert so that the inseam I6 and the stitched portions 21, 41, 61, and 81 are securely 10 gripped at least on three sides. Inasmuch as welting 8 is usually of relatively strong material, the same constitutes a fourth retaining wall so that the inseam and the stitched portions are encased tightly on all sides. 15 . The insole I0 is shaped primarily in conformity with the longitudinal arch of the foot of the wear er, and to some extent also in conformity with the transverse metartarsal arch. The shape of the shank portion of the insole is identical with 20 that of the upper surface 20 of insert I8, and the convex portion 54 of the insole rests ?rmly and evenly against the arch portion of the sole. The outer sole 56 is molded so as to provide a cavity .58 for insert I8 and to fit snugly over the insole I8 including filler 28, and the downwardly projecting insert I8, and extends from the front of the shoe to the rear end thereof. The outer sole 58 is securely attached to the inner sole I8, including ?ller 28, and to the insert I8, so that 30 the latter forms with insole l0 and outer sole 58 a rigid entity. Aheel 26 is attached to the heel portion of the outer sole 56 and is designed to be of such a height that the tread surface of the outer sole extends from the rear edge 62 of the 35 supporting projection 64 at least to the ball por tion of the outer sole. Since the outer sole is molded to ?t closely under the insole III and insert I8, the lateral sides 66 and the rear side 68 of the shank portion of > the outer sole are likewise inclined upwardly from the tread surface of the projection 64 and ?aring outwardly toward the welting 8 and rearwardly toward the upper front edge ‘ID of heel 26. Through this grading or ?aring of the lateral and . rear sides 66 and 68, the arch~supporting pro jection B4 is rendered inconspicuous to such an extent that the difference between a shoe con structed according to the present invention and an ordinary shoe can hardly be noticed from an angle of less than 40° from the vertical, and then only if the onlooker is aware of the existence of the support. For increasing the stability of the construction, and for reinforcing the relatively weak portion of 55 the soles intermediate insert I8 and the forward edge of heel 26, the length of insert I8 may be extended by combining the same with a steel insert ‘I2 which extends a certain distance into the heel portion of the shoe. For securing this auxiliary insert ‘I2 to the main insert I8 without increasing the thickness of insert I8, the latter is provided with a recessed portion ‘I4 at the up per surface 20 thereof, which has a depth equal to the thickness of insert 12. ’ Auxiliary insert ‘I2 is shaped so as to form a continuity. of the upper surface 28 of insert I8 without interrupting the smoothness thereof. The portion ‘I6 of insert ‘I2 which is located within recess "I4 of insert I8 is secured thereto by any 70 convenient means, while portion ‘I8 extends rearwardly from insert I8 into the heel portion of the shoe where it is secured between the in ner sole I0 and the outer sole 56 in a recess 80 provided in the inner sole, or the ?lling material, 1‘ 3 2,137,459 respectively, which forms a part of the inner: sole. In conclusion‘ it is‘well to, ‘reiterate the‘prin cipal feature of the present invention which. re sides in an arch support of ‘solid, rig-id,~and sub stantially incompressible material which con sists of an insert I8 built into the1shoe between the outer and inner soles and secured within a recess 30 provided in the inner sole and a cavity 58 in the outer_sole which'is molded to ?t .tightly sert having outwardly projecting portions for supporting said'?rst means, said lining, counter, upper, and welting and said securing means, and an outer sole secured to saidwelting and enclos ing said insert. 2. A shoe construction‘ comprising an inner sole ‘having a shank portion, a projection extend ing; from the lower surface of said inner sole adjacent but spaced from the edge thereof, and 10 over the insert. ‘ The lower ‘surface. of this‘ arch ‘comprising an -outer and an inner portion, a #10 support treadsabsolutelyv even with‘ the tread lining, a counter, an upper and a welting, a line surface ofi'a large portion. of the sole and the of stitching ‘securing said lining, counter, upper tread surface of the heel. By means of this in and welting to said projection, an arch-supporte vention, the support of thefoot which normally ing insert of solid and rigid material secured 15 rests upon the‘outer and inner balls and the to said inner sole intermediate said. outer, and 15 heel, is materiallyenlarged by using. the arch inner portions for rigidly supporting said shank portion of ‘the foot together with the ball and heel, portions as supporting points or. surfaces. Because of the. inclined shape of. the lateral and 20 rear sides of the insert and the corresponding shape of the varch-supporting ‘projection 52 of the outer sole, the entire ‘insole I0, and thereby the. entire sole of the foot of the wearer, is sup ported, although the actual tread surface of the 25 projection 52 of the outer sole is relatively small. Such inclination also reduces the weight of the shoe materially and. improves the appearance thereof to such an extent that the shoe when worn cannot be distinguished under ordinary .30 conditions from a shoe of customary construc tion. - A further important feature resides in the fact that the substantially incompressible arch sup port retains the arch of the foot in its natural 35 position and does not permit the same to ?atten out under the weight of the wearer. Conse quently, the toe portion of the foot does not have the tendency to turn upwardly when the wearer is in standing position, but rather urges 40 the toe portion of the shoe downwardly. The toe portion of the shoe therefore retains its original position substantially parallel to the ground with its tread ‘surface at a substantially even level with the tread surface of the remain ing part of the outer sole including the arch supporting projection 52 and the tread surface of the heel. Since the shank portion of the shoe can, under no circumstances, be broken down under the Weight of the wearer, the shoe retains its original shape and pleasing appear ance after having been worn for a considerable length of time. Last, but not least, another important advan tage of the present invention resides in encasing and supporting those portions of the shoe which are secured together by the inseam and in pr0~ tecting the inseam itself from tearing. Inas much as the last mentioned result is obtained through the same element which produces all 60 the previously described results, that is by insert l8, it will be seen that this element performs the triple function of supporting the arch of the foot, of supporting and protecting the inseam, and of improving the appearance and increasing the life of the shoe. I claim: 7 1. A shoe construction comprising an inner sole having a shank portion, means on said inner sole adjacent the edge thereof and projecting downwardly therefrom, a lining, a counter, an upper and a welting, means for securing said lining, counter, upper and welting to said ?rst means, an arch-supporting insert of solid and rigid material secured to said inner sole and rigidly supporting said shank portion, said in— portion, said insert having outwardly projecting portions unitary with said insert for supporting said projection, said lining, counter, upper and welting. and said stitching, and'an outer sole 29 secured to said welting and tightly enclosing said insert. , » i i 1 . ~ ' x 3. A shoe construction comprising an inner sole having a shank portion, propections extend ing from the lower surface of said inner sole ad 25 jacent but spaced from the outer and inner edges thereof and forming a part of said inner sole, a lining, a counter, an upper and a welting, each having end portions, a line of stitching securing all of said end portions to said projections, an 30 arch-supporting insert of solid and rigid material rigidly secured to said inner sole intermediate said projections, said insert having portions tightly and rigidly enclosing said projections, said end portions and said stitching on two sides, 35 and an outer sole secured, to said welting and tightly enclosing and surrounding the same. 4. A shoe construction comprising an inner sole having a shank portion, said portion being of convex shape in longitudinal direction to con 40 form with the longitudinal arch of a foot and of concave shape in transverse direction to conform substantially with the transverse metatarsal arch of a foot, projections extending from the lower surface of said inner sole adjacent but spaced 45 from the outer and inner edges thereof, and forming a part of said inner sole, said projec tions forming a recessed portion intermediate thereof, a lining, a counter, an upper and a welting each having end portions, a line of stitch ing securing all of said end portions to said pro 50' jections, an arch-supporting insert of solid and rigid material having an upper surface of a shape conforming to the shape of the shank por tion of said inner sole, said insert being rigidly secured to'said inner sole and being partly dis 55 posed within said recess and ?tting tightly there in so as to press against the inner walls of said projections, said insert having laterally project ing portions, the upper surface of said projecting 60 portions, rigidly supporting said end portions and an outer sole having a downwardly extending projection at the shank portion thereof forming a cavity for said insert, said outer sole being se cured to said welting and ?tting tightly over the lower surfaces of said insole and said insert. 5. A shoe construction comprising an inner sole - having a shank portion, said portion being of convex shape in longitudinal direction to con form with the longitudinal arch of a foot and of concave shape in transverse direction to con 70 form substantially with the transverse metatar sal arch of a foot,'projections extending from the lower surface of said inner sole adjacent but spaced from the outer and inner edges thereof, 15 4 2,187,469 and forming a part otsaid inner sole, said pro jections forming a recessed portion intermediate thereof, a lining, a counter, an upper and a welt ing each having end portions, a line or stitching securing all of said end portions to said projec tions, an arch-supporting insert of solid and rigid material having an upper surface of a shape conforming to the shape of the shank portion of said inner sole, said insert being rigidly secured to said inner sole and being partly disposed with in said recess and ?tting tightly therein so as to press against the inner walls of said projections, said insert having laterally projecting portions, the upper surface of said projecting portions, rigidly supporting said end portions, an outer sole having a downwardly extending projection at the shank portion thereof forming a cavity for said insert, said outer sole being secured to said welting and ?tting tightly over the lower sur faces of said insole and said insert, and a heel secured to the heel portion of said outer sole, the tread surface of said outer sole being at an even level with the lower surface of said projection and the tread surface of said heel. 6. A shoe construction according to claim 5, further comprising a steel insert, said ?rst in sert having a recess in the upper surface thereof, said inner sole having a recess at the lower side of the heel portion thereof, said steel insert be ing secured within said last two recesses. 7. In a shoe construction according to claim 5, said insert having inclined sides and an inclined rearward end, said outer sole being molded to correspond to the shape of said insert whereby said projection is rendered inconspicuous, and a steel insert, said ?rst insert having a recess in the upper surface thereof, said inner sole having a recess at the lower side of the heel portion thereof and rearwardly ofsaid insert, said steel insert being secured within said last two recesses for reinforcing the reduced rearward end of said 20 insert. ANTHONY E. PIEKENBROCK.