DE1146406B - Method of making orthopedic shoes and molded soles for use in performing the method - Google Patents

Description

The invention relates primarily to a method for the production of orthopedic shoes, the foot support surface of which is helical around the longitudinal axis of the shoe twisted, namely in the toe area from the outside in and in the heel area from the inside is designed sloping to the outside, the upper shoe made on a conventional last and is connected to the outsole.

The invention also relates to a molded sole to be used for carrying out the new method.

In the manufacture of orthopedic shoes, the aim is not only to prevent existing foot damage "to compensate" for such damage through appropriate training of the footwear to be improved by appropriate shaping of the footbed in the shoe. This is especially true for the lot common flat feet or splay feet.

Orthopedic footwear is also used as a preventative measure so as not to use it at all Let training of foot damage come.

In recent times it has been found that many foot complaints are caused by unnatural movement of the foot when walking are conditioned, in turn on the conventional form of the support surface for the Sole of the foot in the upper shoe is due. One strives to overcome this disadvantage through a special training of footwear that is supposed to force a "natural" walking movement of the foot. the The natural walking movement aimed for should above all keep the not yet deformed foot through constant Strengthening certain muscle parts of the foot to prevent damage to the feet impede.

The surest way to achieve this goal is to use a special one Foot shape of individually adapted insoles; Such "custom-made insoles" are expensive and therefore become only acquired by a few. As the shape differences of still uneducated feet are generally not are particularly large, a very good success can also be achieved by factory-made insoles, which are adapted to the average dimensions and shapes of the foot. In any case, it is with The help of such factory-made insoles inserted or incorporated into the shoe is possible, Forcing the wearer of such shoes to use the appropriate "natural" walking movement.

When walking naturally, the foot should first touch the inside of the heel then roll over the ball of the little toe (outer ball) to the ball of the big toe (inner ball) Method of making orthopedic shoes and molded soles for use

while performing the procedure

Applicant:

Dr. med. Klaus Maertens,
Seeshaupt (Obb.), St.-Heinrich-Strasse,

and Dr.-Ing. Herbert Funck,
Munich-Pasing, Planegger Str. 83

Dr. med. Klaus Maertens, Seeshaupt (Obb.),

and Dr.-Ing. Herbert Funck, Munich-Pasing,

have been named as inventors

and finally push yourself off the ground with your big toe. With such a walking movement the foot alternately rotated or twisted about its longitudinal axis with each of its steps, with the foot muscles be compelled to work naturally.

In order to save the use of special insoles, it has already been proposed for the production of footwear, which is supposed to bring about such a natural walking movement, to special lasts use in which an angular twist or screw connection between the heel tread surface and the ball tread is provided. The angular twist or screw fitting that is in affects the surface of the insole of a shoe made on such a last, then causes inevitably with changing loads on the sole while walking, that the foot rotated accordingly or twisted and unrolled in the sense of the natural walking movement recognized as beneficial. However, the manufacture of shoes on such lasts with a twisted sole surface requires that between Special wedge-like intermediate layers are inserted into the upper and the sole, which prevent the twisting or screwing the insole of the overshoe so far compensate that under one such upper shoe the usual smooth outsoles can be used. This measure is conditional significant additional cost.

H09 547/148

3 4

In order to be able to manufacture the footwear more cheaply, lasts sit. As soon as the last out of the upper shoe

If the upper shoe has been removed for the production of the normal, the internal tension of the

Lasts used and affect below the insole or molded sole in such a way that they - at least

between an insole and a midsole of the very largely - upper back in its twisted shape Shoe essentially wedge-like intermediate 5 and twisting the upper shoe accordingly

layers are inserted, the more pronounced back parts det and bring them into the shape that the upper

on the inner side of the heel and under the shoe would have if it was on a special last

The balls of the little toes (outer balls) lie. The insertion would have been made, which in turn would have an astonishing

such additional intermediate layers but has dene sole surface.

Compared to a normal shoe, an additional io through the use of such a molded sole It is the cost of materials and work that also make up the outsole of the orthopedic shoe position of shoes more expensive. possible to essentially consist of the upper leather and Insoles are also known, the foot of which has an upper shoe consisting of a fire or inner sole The contact surface is screwed around the longitudinal axis of the shoe - without special inserts, especially without twisting is twisted, namely to produce the support surface for the sole of the foot in the toe area of 15; outside inwards and in the heel area from inside the desired twisting or deformation of the sloping outwards, while the underside of this support surface for the sole of the foot is only formed at known insole is flat. or after connecting that normal upper-die Invention is based on the basic shoe with the orthopedically profiled and / or Thoughts that all molded or profiled soles previously twisted on the upper are out. The corrections taken by loosely inserted, inlaid, In fully executed molded soles, the worked or pushed-in single and intermediate velvet facing the upper can be turned into Layers can be saved by profiling them in the desired orthopedic manner Deformability or the high elasticity of a normal and / or helical twist. In the case of the housed upper shoes, take advantage of the 25 known hollow, chamber or air poster soles that to be connected with the upper shoe elastic on its circumference with a raised, circumferential Outsole on its edge facing the upper shoe and within this edge with upwards Page is a corresponding height profile, which are provided in the open air chambers, one becomes the essential to the profile of the previously used Em height of this circumferential edge for the formation of the or intermediate layers, which the upper orthopedic sole shape make use of by means of a shoe after its connection with the outsole differently adapts with respect to the longitudinal axis of the sole, overlying parts of the edge with different One carried out according to the usual procedure and without loading and, if necessary, also in the Special orthopedic inserts or liners are placed in front of the longitudinal direction of the edge, height differences Upper shoe that will be seen with such an »ortho- 35.

Pedically profiled «molded or profiled sole with footwear that has the natural

is bound, takes immediately after his walking movement of the foot is supposed to bring about, one becomes

Connection to the sole and removal of the last at least the edge of the molded sole on the after

a side of the heel with a greater height and which is approximately on the inside of the profile of the upper side of the sole

adapting shape to; In the course of using the 40 run as the corresponding point on the sole

Shoe, d. H. if the fire area or the corresponding edge part on the outer

Sole part of the upper, the contact surface will see the heel. On the other hand, one becomes that

for the sole of the foot in the upper shoe more and more the same purpose at least the edge of the molded sole

adapted to the orthopedic sole profile. on the outside of the front sole surface with

It is particularly easy to adapt the upper part to a greater height than the one on the inside

shoe an erne on their upper side height differences of the front sole surface lying sole or

having shaped or profiled sole, if on the edge part.

Upper side of the sole no sharper height profile, under the inner side of the heel or

but essentially only a helical of the front sole part is in the sense of the above

Torsion is provided, as it is to understand the enforcement 50 the explanations that side,

natural walking is desirable. which is facing the second shoe when

The subject matter of the invention is therefore the left side and the toe in the essentially right shoe

borrowed a new method of making ortho shoe the right side of the sole. Accordingly,

pedic shoes, the footrest around which the expression »outside of the sole« indicates each

The longitudinal axis of the shoe is twisted in a helical manner, namely because the side that is on the outside when walking, i. H. at

borrowed in the toe area from the outside to the inside and in a right shoe the right and in a left shoe

Heel area sloping from the inside outwards - the left side of the shoe.

is formed, with the upper shoe on a her- The twisted molded sole can also be used as

conventional lasts and formed with the sole arch support if one

is connected; the inventive method 60 is from the inner edge part of the paragraph

is characterized in that when connecting up to the inner ball of the foot along the inner edge of the sole

Upper shoe and sole one on their upper side, the stretching edge or reinforcement web on his

rubber-elastic shape with sore surface - lying underneath the inside of the arch of the foot

the sole is temporarily twisted elastically. Part with its lower edge up to the level of the running

Which initially protrude below the elastic torsion 65 surface of the sole and with its surface

The edge, which is fixed on the normal upper shoe, has an upwardly convex arched support

The elastic molded sole remains in its span for the inner arch part of the upper for a long time

condition of how the upper shoe can still be firmly attached to the shoe.

5 6

In itself it would be possible to use the underside of the In FIG. 2 is an outsole according to the invention Molded sole perfectly smooth to keep dung shown. This outsole 3 is made of thermo- or they only use a light plastic that prevents them from slipping, rather than collapsing them with their heels To provide surface profiling. With the hanging molded sole pressed. In coincidences However, the soles smooth on the underside occurs with the formation of the last, as in shown in use of Fig. 1 made in accordance with the invention shows the upper surface of the molded shoe often a greater wear of that sole 3 also a twist or screwed sole surfaces on that in getting used to the exercise. The shape-user intended for the right foot of such a shoe is predominantly loaded with sole 3 in the area of its front sole part 5 will. With this wear and tear, an io can simultaneously be a sole surface sloping from the outside in, certain reduction in the supporting effect of the twisting while in the area of paragraph 4 the sole surface be connected to the mold sole. To this un- falls from the inside out. The twisting of the To counteract the desired appearance, the sole surface is best shown in Figs. 3 and 4, it is useful to indicate on the underside of the sole in which the inclination of the sole surface relative to the 15 horizontal lines 6 and 7, shown in dashed lines, projecting plateau-like in certain areas of the surface Provide reinforcements, which are preferably clearly visible under. It should be obvious without further ado the inside of the heel, the outside ball and the upper shoe that is placed on a last inside ball lie. measurement Fig. 1 is made, after connection with a

These plateau-like reinforcements are more twisted in the form of the sole according to FIG. 2 Way, partly because of an area that is also reinforced, has to keep the twisted one Edge strips of the sole connected, of which the underside is reduced in a corresponding manner one who is always in the right position from the heel to the sore molded sole Inner ball extends, at the same time as a support for is held.

inner section of the joint part of the shoe. It has even been found that it is not used at all can be. 25 it is necessary to place the upper shoes on last with

In the drawing, the invention can be made, for example, of the sole surface: one can illustrate; it shows the manufacture of the upper shoe also quite ordinary,

1 use a known shoe last with a last with a surprisingly smooth sole surface,

of the sole surface in side view, if one looks at the one made on ordinary lasts

2 shows a molded sole according to the invention in upper shoes in a manner known per se with a

Side view, connecting molded sole according to the invention, so becomes

3 shows a cross section along the line III-III after the upper shoe, which is elastic in itself, has been stripped out

through the sole according to FIG. 2, from the sole into that slightly twisted shape

Fig. 4 is a cross-section along the line IV-IV, which he has for orthopedic reasons.

through the sole according to FIG. 2, 35 should point. When using the shoe, about

Fig. 5 is a plan view of the underside of a sole still existing internal stresses in the course of

similar to Fig. 2, the time determined for a left shoe compensated, so that after a relatively short use

is, and duration of the upper shoe of the wounded

Fig. 6 has a longitudinal section through a properly adapted for a sole.

sole that is specific to the right shoe, which is otherwise developed. Figures 3 and 4 are the height differences

speaking Fig. 5 is executed. between the inner and outer edges of the sole

The one shown in side view in Fig. 1, already surface with Hl (in the front part of the sole) and H 2

known shoe lasts 1 is used to produce the in (in the area of the heel) designated. The size

the footwear mentioned in the introduction, with which these height differences Hl and HI are directed

Help a natural walking movement can be achieved 45 according to the desired orthopedic effect;

target. This last, which for a right shoe it is generally only a few millimeters

is determined, shows a sole surface 2, which are - im.

In contrast to the generally used by laying the twisting of the sole strips - A twisting or screwing surface in the outsole results for the shoe. 50 steller the main advantage that special strips

The illustration clearly shows that the can be saved and the entire manufacturing

Heel tread surface 2 a on its inside (the loading process of the shoes run in the usual way

the side facing the shower can be significantly higher. Especially deposits, as they either have before

than on its outer edge. In the front part 2 & the one between the upper shoe and the normal sole or

On the sole surface, the inner edge lies much deeper 55, if necessary arranged in the bottom of the upper shoe

than those indicated by the dashed line can be omitted.

rear outer edge. In the case of a last, the die with the twisting of the sole surface of the

is intended for the left foot, this twist upper shoe is associated change of the usual

Execution reversed symmetrically. Walking movement in which the twisting

As already explained in the introduction, at the age of 60 you can be forced to put your feet up Such a last, although the upper shoe is practiced with one, also brings about a shift in the wounded or screwed sole surface utilization of the outsole with it. The wear and tear of the to lead; when assembling this upper running surface of the sole is at those points on With a normal sole, this twisting goes to be the greatest, where the highest loads are screwed on the sole surface of the upper 65 step. These spots are the inside of the heel, the back very soon, so that the desired beneficial ball of the small toe (outer ball) and finally the Adhesive effect on the stress on the foot, ball of the big toe (inner ball of the foot). In addition there is outside Walking doesn't last long. which temporarily increased wear and tear

those parts of the sole tread that lie under the raised areas of the sole, until getting used to it of the foot to the natural walking movement correcting these raised areas on the sole of the foot Transferring forces.

FIGS. 5 and 6 show one produced with this increased wear and tear taken into account Sole, which in addition to the twisting of its upper surface facing the upper shoe on its underside, i.e. the outsole surface, has reinforcements that are located at certain points on the outsole surface. These reinforcements on the underside of the sole ensure a longer service life for the Sole compared to the previously known, without taking into account orthopedic aspects and special wear and tear produced soles.

The main signs of wear and tear occur essentially in two separate, but in each case in contiguous areas of the tread on the outer edge of the sole Sole on. According to the invention, the reinforcements on the underside of the sole are now only applied to these Heavily used areas of the tread of the sole are provided. The first of these areas includes the rear part of the heel, a narrow edge strip that extends to the inner ball of the foot and a wider part lying under the inner ball, while the other, second area extends over a wide tip part, a narrower edge part adjoining the tip part on the front Sole outside and a widening, lying under the outer ball of the part. It is the narrow edge strip that extends from the heel to the inner ball also acts as a base intended to support the inner longitudinal arch of the foot, which may be on the upper side of the sole (not shown in the drawing) contain additional elevations serving as supports for the foot can.

It can be seen from FIGS. 5 and 6 that the reinforcements extend over the tread of the sole two areas 8 and 9 extend which form the central part 10, which is somewhat deeper than the reinforcements of the sole surface for the most part.

The first area 8 comprises the rear part 11 of the heel, a narrow one extending to the inner ball extending edge strip 12 and a lying under the inner ball wider part 13. The second area 9 extends over a wide tip part 14, one adjoining the tip part narrower, relatively short edge part 15, which lies at the front on the outer side of the sole, and a widening part 16 lying under the outer ball.

In the illustrated embodiment of the sole, the reinforcements rise in the form of connected, raised surfaces like a plateau over the middle, lower-lying sole part 10.

The surface of the reinforcement surfaces is profiled, namely grooved, the grooves being arranged substantially transversely to the longitudinal axis of the sole are. It would also be possible without further ado to insert a waffle pattern or the like into the reinforcement surfaces instead of the grooves memorize.

The edge 17 delimiting the first area from the lower-lying part 10 of the sole tread goes approximately at the transition point from the rounded heel to a straight piece of the outer edge of the sole at an angle of about 90 ° against the edge of the sole at the point indicated by 19 of this off, then merges with a curved arc into an approximately hook-shaped section, which is in runs a small distance from the inner edge of the sole, then in a gently curved, inverted manner S-curve to encompass the wider, under the inner ball lying part 13 and at an angle of 50 to 70 ° at the point marked 20 to meet the inner edge of the sole.

The one that delimits the second reinforcement area from the lower-lying part of the sole tread Edge 18 sets on the inside of the sole approximately at that point 21 of the sole edge under one Angle of about 90 ° at which the curve of the tip begins. It then runs with one after the other Inside of the sole curved arch to close to the approximately opposite their starting point Place on the outer edge of the sole, from there with a sharp arc of about 90 ° in a gradually turning from the edge of the sole further distant inverted 'S-curve, in which they the part 16 below the Outer ball includes, and meets behind it at an acute angle with its end 22 on the outer edge of the sole. In the case of a sole intended for the right foot, the reinforcement areas are mirror-symmetrical arranged.

On the surface of the recessed, unreinforced middle part of the sole, that of crepe soles known crepe profile is provided, one or more smooth spots can be used to accommodate company, Brand and size designations 23, 24 may be provided in a known manner.

Claims (9)

PATENT CLAIMS: 1. A method for manufacturing orthopedic shoes, the foot support surface of which is twisted helically around the longitudinal axis of the shoe, namely sloping from the outside to the inside in the toe area and sloping from the inside to the outside in the heel area, the upper shoe being produced on a conventional last and connected to the sole, characterized in that when connecting the upper and the sole a rubber-elastic molded sole (3) having the twisted surface on its upper side is temporarily twisted elastically. 2. Molded sole made of rubber-elastic material for use when carrying out the method according to claim 1, characterized . net that the sole (3), which is helical at its top relative to its longitudinal plane in such a way is twisted that in the area of its front sole part (5) one from the outside to the inside and in the area of their heel part (4) a surface sloping from the inside to the outside arises on their Underside in those places that are enforced by the shape of the sole Walking movement are exposed to increased stresses, has plateau-like excellent wear reinforcements (8, 9). 3. molded sole according to claim 2, characterized in that the wear reinforcements in particular under the heel (11), under the ball of the little toe (16) (outer ball) and under the ball of the big toe (13) (inner ball) are arranged (Fig. 5 and 6). 4. Sole according to claim 2 and 3, characterized in that the reinforcements are each contiguous Form raised areas that extend over the central, on both sides of the reinforcement areas for the most part covered sole surface part (10) raise. 5. Sole according to claim 4, characterized in that the protruding over the sole tread Reinforcements are made up of two separate, but interrelated, Areas (8, 9) of the running surface of the sole which are located on the outer edge of the sole extend, of which the one (8) the rear part (11) of the paragraph, a narrow one, up to the inner ball extending edge strip (12) and a lying under the inner ball wider part (13), while the other (9) extends over a wide tip part (14), a adjoining the tip part narrower edge part (15) at the front on the outer side of the sole and a widening part (16) lying under the outer ball extends. 6. Sole according to claims 4 and 5, characterized in that the first reinforcement area (8) against the lower lying part (10) of the sole tread delimiting edge (17) approximately at the transition point (19) from the Heel rounding in the outer edge of the sole at an angle of about 90 ° to the edge of the sole starting from this, with a curved arc in an approximately hook-shaped section which runs a short distance from the inner edge of the sole, to then in a gentle curved S-curve to encompass the wider part (13) lying under the inner ball and to hit the front inner edge of the sole (point 20) at an angle of 50 to 70 ° (Fig. 5). 7. Sole according to claims 4 to 6, characterized in that the second reinforcement area (9) against the lower-lying part (10) of the sole running surface delimiting edge (18) on the inside of the sole, for example on that Point (21) of the inner edge of the sole starts at an angle of approximately 90 °, at which the curve of the toe begins, then with a curve towards the inside of the sole Curve right up to the point on the outer edge of the sole that is roughly opposite its starting point runs, from there with a sharp arc of about 90 ° in a gradually diverging from S-curve further away from the edge of the sole includes the part (16) below the outer ball of the foot and behind it meets the outer edge of the sole (point 22) at an acute angle (FIG. 5). 8. Sole according to one of claims 2 to 7, characterized in that the surface of the Reinforcement areas (8, 9) profiled, e.g. B. is grooved, the grooves expediently transverse to the longitudinal axis run along the sole. 9. Shoe according to one of claims 2 to 8, wherein the between the front sole part and The part of the sole lying on the heel is supported by additional sole parts, characterized in that that a from the inner edge part of the paragraph (4) to the inner ball along the Sole inner edge extending edge strip (12) on its below the inside of the longitudinal arch of the foot lying part lies with its lower edge in the plane of the tread of the sole and with its upper edge an upwardly convex support for the longitudinal arch of the foot forms. Considered publications:
German Patent Nos. 829 715, 943 573;
German utility model No. 1 679 678,
683 748, 1706 103;
Belgian Patent No. 509 059;
British Patent No. 599,832;
U.S. Patent No. 1,988,784. 1 sheet of drawings © 309 547/148 3.63