FR2615704A1 - SHOE COMPRISING AN INSOLE COMPRISING COMPRESSIBLE JUNCTION ELEMENTS AND ELEMENTS PREVENTING FALLING - Google Patents

Abstract

A shoe comprising a midsole containing compressible jointing elements and sag prevention elements is disclosed. In this assembly forming a sole for a shoe 10 and comprising an insole or insole 12 and an outsole or wear sole 16 enclosing between them a midsole 14 and comprising a plurality of parallel ribs 66, 68, 70, 72 spaced between them and with respect to neighboring pairs of ribs, each pair of ribs including a first rib 66, 70 and a second rib 68, 72 which are bent in the direction of each other, compressible elements 64 located between said first are provided. and second ribs. Application in particular to sports shoes adaptable to the sports practiced and / or to the user.

Description

Shoe comprising a midsole containing elements of

  There has been a significant increase in the number of people running or jogging as recreational sports in recent years. However this

  accompanied by the appearance of a large number of injuries

  res or state due to the use of sneakers that do not provide proper cushioning for the feet

of the user.

  As is recognized by the specialists. of the technique as well as by the millions of people who race for their leisure, good shock absorption and good flexibility are two characteristics extremely

  important and desirable in both

  only in shoes not used for sport. The soles of these two types of footwear must provide a significant degree of flexibility as the foot flexes naturally while being strong enough to

  resist shocks, but also be sufficiently soft

  to provide appropriate cushioning action and appropriate comfort. This characteristic of flexibility and

  combined strength is very useful in non-wearing footwear.

  for sports and sports shoes.

  In addition the sole of the shoes must allow a control

  of pronation and supination of the foot while providing

  local resistance to exceptional impact forces

  especially in the heel area.

  The sole structure of most commercially available shoes currently is

  a structure composed of three elements including a

  outer sole or outsole, an insole

  and an insole or first. The sole ex-

  wall is normally made of a robust material

  abrasion-resistant, since this is the

  part of the sole that is in contact with the ground. The semel-

  the interlayer is the part of the shoe located between the outsole and the insole and its role is

  to raise the heel and build a cushion cushion

  for the entire shoe. The insole is normally used to gather the midsole

  to the very structure of the shoe.

  In most of the available midsoles

  Currently commercially available, there is provided a single layer of a compressible rubber-like material or the like. The force required to initially compress this material is minimal, but when an additional force

  is applied to this material, a force of greater intensity

  more is needed to further compress this material.

  In shoes of the prior art, we use

  either midsoles or outer soles

  which contain salient features including at least

  an oblique part in relation to the normal plane of the

  re. These particular types of shoe soles flex

  initially when a force is applied to the soleplate.

  Unlike the compression force, the initial force

  implemented to cause a narrowing of the nerves

  or salient elements is quite high, but when

  additional force is applied, the average intensity

  the force required to produce an additional deflection

decreases.

  Although in some of the shoes of the art

  interior, there are provided, in the sole of the boot, ribs which are initially in abutment against neighboring ribs at the contour of the outsole, these

  ribs do not initially sag, and then, when

  additional force is applied, ribs

  sines in abutment show a compressive force

  who must be defeated by the person wearing the shoes.

  Although it has been established that the use of

  able to flex when a force is applied to them,

2615704 '

  Although it has a better cushioning surface than in the case of the use of a single layer of material for the midsole, it has also been deemed necessary. develop a

  shoe providing even greater cushioning.

  In general, the present invention associates

  in combination with the knowledge of the inner sole

  monolayer caliper of the prior art to that of a midsole of the prior art containing a plurality of

ribs that can be flexed.

  The present invention achieves this objective by providing

  a midsole containing a plurality of pairs of ribs, the ribs of each pair having

  curved, curved or convex shapes opposite one another

  be. The pairs of ribs are spaced from neighboring pairs of ribs so that when each rib flexes,

  it comes to apply against veins of a couple

  sin. In this way, each rib of the

  initially deflects, and when it is applied against a neighboring vein, a compression of

  these ribs. These rows of ribs are arranged transversely

  salty compared to the longitudinal axis of the shoe, parallel to this axis or at different angles

  relative to the longitudinal axis of the shoe. This

  The special concept of midsole is based on

  U.S. Patent Nos. 4,536,974 and 4,611,412.

  In addition, the present invention achieves a control of the pronation and supination of the foot and provides a

  localized resistance to exceptional impact forces -

  thanks to the insertion of insertsbetween the ribs of a couple

  or several pairs of ribs or between pairs of

veins of ribs.

  In addition, when the inserts are arranged between adjacent pairs of ribs, they are adapted so as to substantially or completely fill the entire volume present between the neighboring pairs of ribs so as to prevent the deflection of the ribs of the ribs. the sole

  interlayer. This embodiment implements a system

  system for selectively creating a differential resistance used to adapt the midsole to an individual or specific activity. This co-design is based on U.S. Patent Application Serial No. 054,808

deposited on 27 May 1987.

  Although the midsole described in US Patent Nos. 4,536,974 and 4,611,412 has been found to have a

  important success because it is an insole

  calaire comfortable and absorbing energy it has been established

  that an additional midsole can be made

  with ribs whose height is reduced to approximately

  approximately one-third compared to that of the ribs

  made with previous molds. Although this new midsole proved to be significantly lighter than

  the previous intecal soles and much less on-

  reuse, permanent contact and separation

  ribs of neighboring pairs of ribs led to

appearance of unwanted noise.

  The present invention eliminates this undesirable noise by placing compressible junction elements along the midsole between the major part,

  if not all the pairs of ribs. Each element

  compressible joint is disposed between a rib of a first pair of ribs and the rib, which is

  neighbor, of a neighboring pair of ribs, so that these nerves

  vures close to neighboring pairs of ribs are not in

  contact when the midsole is

  awarded during the initial application of a force to the

the shoe.

  In addition, by blocking the veins coming in

  at their midpoints, the compressible junction element delays the diagonal movement of the ribs, which improves the stability of the foot. Moreover, since the compression of the joining element begins at the very beginning of a step, the synergy of the sagging and

  compression takes place over the entire travel distance.

  Other features of the present invention

  will emerge from the description given below taken in

  In the accompanying drawings, in which: - Figures 1,3,5 and 8 show various embodiments of the present invention, in the undeflected and uncompressed state; - Figures 2,4,6 and 9 represent different

  embodiments of the present invention in the

  chi and tablet; - Figure 7 shows a sectional view showing the ribs of the shoe;

  FIG. 10 represents an elevation view,

  snatched from the sole of the shoe;

  FIG. 11 represents an elevation view

  lateral veins of the sole of the shoe; - Figure 12 shows a broken view showing

  transverse ribs as well as the inserts of the shoe.

  safe; FIG. 13 represents the shoe equipped with

  longitudinal ribs and inserts in the relaxed state;

  FIG. 14 represents the shoe equipped with

  longitudinal vests and inserts in the compressed state;

  - Figure 15 shows a broken view corres-

  laying in Figure 13 and showing the longitudinal ribs

  the inserts and the inserts of the shoe; FIG. 16 represents the shoe equipped with

  longitudinal ribs and inserts preventing sagging

  provided between neighboring pairs of ribs; and FIG. 17 represents the shoe equipped with longitudinal ribs and junction elements preventing

  compression and arranged between neighboring pairs of nerves

mosina language.

  As shown in FIG. 1, a shoe 10 comprises an insole 12, a midsole 14 and an outsole 16. The insole 12 is contituée

  by a layer of rubber or leather. The insole

  14 contains a plurality of pairs of ribs 18. These ribs are arranged transversely with respect to

  the longitudinal axis of the shoe and are provided for

  along the entire length of the shoe. In addition, in one embodiment, each pair of ribs extends substantially over the entire width of the shoe or,

  in a second embodiment, the ribs do not extend

  not on the entire width of the shoe. Although this

  is not essential for the invention, each pair of nerves

  vures is made of a rubber-like material or

  similar. As shown in FIG.

  res of the pair of ribs 18 are bent in directions

  reciprocally opposed. The outsole 16 is

  also made from a variety of materials

  usually used for sports shoes and for

  shoes not used by sportsmen. If not,

  inner yoke 12, the midsole 14 and the sole

  16 may be formed by extrusion in the form of

me of a unitary whole.

  When a walker, a runner or a follower of the jog-

  ging applies a normal force to the soles, as is

  shown in FIG. 2, each of the ribs flexes

  tially. As previously indicated, a relatively large force is required to initially bend the ribs, but once the ribs are bent to a significant degree, a relatively smaller force is required to cause additional bending of the ribs. Each pair of ribs is separated from the couples

  neighboring ribs so that when a pre-force

  determined has been applied, a supply of pairs of ribs 18 is applied in 24 against a neighboring rib 20 of a second pair of ribs, while the second rib of the pair 18 is applied in 26 against the rib 22, which in is next, a third couple of ribs. From this moment, when an additional force is applied perpendicular to the sole, the ribs are compressed.

  mées. Since a force of minimal intensity is born

  necessary to initially compress the ribs and that a force - more and more intense is needed to compress

  additionally these ribs, the configuration parti-

  the midsole in accordance with this

  vention provides a sole in which a force of

  relatively constant tenseness is necessary both to flex and compress the sole when the force

  is applied to this sole when the person is running,

che or jogging.

  As a result, this sole, which

  the application of a relatively large pressure,

  followed directly by the application of a relative pressure

  weakly necessary to bend the ribs

  sociation with the application of a relatively low pressure

  followed by the application of relatively high

  It is necessary to compress the ribs, is light, cheap and allows for extremely smooth and uniform steps. Figures 3 and 5 show different shapes

  embodiment of the present invention. Figure 3 shows

  feels a shoe, in which each pair of nerves

  vures 28 comprises a rib having a contour in -

  force of "SU turned forward and a rib possessing

  an "S" shaped contour returned and directed in the opposite direction

  Se the contour of the previous rib. As in the case of the shoe described with reference to FIGS. 1 and 2, each of the ribs initially flexes until neighboring ribs 30 and 32 come into reciprocal contact at points 24 and 26, at which point any additional force

  applied to the sole acts as a force tending to com-

  primer the ribs 28 of the midsole 14, as

  this is shown in Figure 4.

  Similarly, Figure 5 shows a shoe

  sure 10 having a plurality of pairs of ribs 3B, each of which delimits a "diamond" configuration. In addition, as in the case of the shoes shown in the figures

  1-4, this configuration "in rhombus" is the subject of a fl ow--

  initial drop when the force is applied perpendicular

  at the respective locations 24 and 26, at which point the ribs 38 of the midsole 14 are squeezed, like that

is shown in Figure 6.

  Each of the outer soles 16 may comprise

  one or more transverse grooves 17 making it possible to

  the effort required to flex the sole

  the normal mode of heel lift, which

during the race or the walk.

  Although the embodiments shown on

  Figures 1-7 show a shoe sole with

  a plurality of ribs arranged transversely to the longitudinal axis of the sole of the shoe and extending substantially over the entire width of the soles note that it is not necessary that these ribs are 'disposed of this way. Figures 8'and 9 represent

  an embodiment, in which a plurality of nerves

  50,52 are arranged parallel to the longitudinal axis

  the sole of the shoe so as to extend

  over the entire length of the sole. As shown in FIGS. 8 and 9, the insole 12, the sole

  insert 14 and the outsole 16 extend leg: -

  beyond the body of the shoe as shown

  54. The purpose of this protruding provision is to

  provide greater support and control over the

the user.

  Figure 10 shows a side elevational view of

  the midsole 14 equipped with the type of ribs

  , 62 shown in Figures 1,2,8 and 9. An elastic element

  64 thin junction tick is provided between different

  60,62 ribs provided in a single pair of ribs cin-

  Trees. All pairs of ribs contain similar junction elements. The joining elements are thinner than each individual rib and the elastic nature

  of these elements allows them to be stretched when the nerves

  res 60,72 are initially flexed, then are printed,

  in order to provide another additional damping force

  the weakening of the veins. In addition,

  shown in Figure 11, if the ribs are more

  that this is not shown in Figure 10, the

  Joints 64 are used only in connection with the bending forces of the ribs 66, 69, 70 and 72. In this case, regardless of the intensity of the pressure of the force applied to the sole of the boot, the rib 66 does not come into contact with the rib 70 and, similarly, the

  rib 68 does not come into contact with rib 72.

  Although the precise dimensions of the rib and the sole are not crucial, it has been established that with the exception of about the last four ribs on the right side of the sole of the shoe shown in FIG. 10, all the ribs shown in Figures 1-16 have a thickness of approximately 0.32 cm,

  and said last ribs have a thickness equal to

  at 0.48 cm. In addition the spacing between the ribs 60 and 62, which have a thickness of 0.32 cm, is equal to 0.64 cm

  in the relaxed state, and the spacing between the ribs, which

  thickness of 0.48 cm, is slightly less than

  less than 0.64 cm. The role of slightly thickened veins is to help to prevent pronation and to support more cmarplètemeht

  the foot of the person. In addition, the insole 12 allows

  should have a thickness of 0.24 cm and the outer sole

  16 have a thickness equal to 0.32 cm.

  Shoes made in accordance with the present invention may provide a degree of damping necessary to compensate for different shock loads produced in different parts of the shoe in contact.

  with the ground during a sports activity or during

  very hard work. In addition, the spacing between the different

  of ribs and the thickness and length of the nerves

  vures can be increased or reduced depending on the weight of the individual or the particular activity for which the shoe is designed. It is. this interaction of each pair of ribs with the ribs, which are close to them,

  which provides the particular depreciation effect, and not the

  any hydraulic or pneumatic force.

  Figures 12-15 show other forms of

  embodiment of the present invention, wherein

  massive elastomeric plugs are used to control pronation and supination of the foot as well as to provide localized resistance to shock forces

  exceptional, especially in the heel area.

  As shown in FIG.

  bes 80 are arranged between the ribs 18 which extend over the width of the midsole. The tubes 80 could extend over the entire width of the shoe

  or, as shown in Figure 12, may be

  seen between the first and second veins of a pair of nerves

  vures 18, only over a part of the width. In addition,-

  as shown, the tubes 80 do not need

  to be provided between the ribs of each pair of ribs

  res, but the arrangement and the length of each tube are predetermined according to the type of activity envisaged as well as

  according to the physical characteristics of the use

  tor. In addition, as shown in FIG.

  have the tubes of elastomeric inserts 82 between ribs

  longitudinal ress 50,52. As in the embodiment shown in Figure 12, the tubes 80 do not need

  to be provided between the veins of all pairs of nerves

  and it is not necessary for it to extend over the entire

length of the sole.

  Figures 13 and 14 show the shoe and its sole including the tubes 82. Figure 13 shows the

  shoe in the relaxed state and Figure 14 shows the shoe

  in the compressed state, so as to show the flexibility of the tubes 82. As indicated above, the length of the inserts

  tube-shaped is not critical, although we have

* bli tube length corresponding to 2.54 cm provide

  satisfactory results. In addition, the thickness can be

  the wall of the tubes so as to obtain an adaptation

  different sporting activities, different weight distributions and the compression load

  surface unit for a specific individual.

  In addition, it is possible to replace the inserts in the form of

  tubes by inserts in the form of massive buffers. The in-

  buff-shaped serts can be formed by a rubber

  spongy bunch or similar material, while

  tube-shaped serts have an inner cavity or-

  green allowing a free passage of air in them.

  Buffers or tubes can be inserted between

  the ribs of the midsole during the manufacture

  and are permanently attached to these ribs by means of

  glue, adhesive or similar substance, the use of

  may manually insert the buffers or tubes

  be the ribs. Tubes or buffers can be

  attached to the ribs, insole or

  to the outer sole or, otherwise, remain in place under the

  friction. Therefore, depending on the activity that is envisaged, one can modify.

  the number, the length of setting up as well as the

  physical form of tampons or tubes.

  FIG. 16 shows another form of

  embodiment of the present invention. This form of realization

  tion uses an insert 94 preventing sagging and provided

  between two neighboring pairs of ribs. This insert is introduced

  dune inside the midsole between the ribbon

  re 90 of a couple of ribs and the rib 92 of a couple

  neighbor of ribs. The insert 94 is constituted by a material

  compressible material in the form of a sponge similar to that of

  serves as a buffer and is adapted to substantially fill the gap between the ribs

  and 92. Initially, when a force applies to the se-

  midsole, the ribs 90 and 92 flex to

  what they come into abutment against each other then

  begin to be compressed. However, when the insert 94 is provided between the ribs of adjacent pairs of ribs; the

  deflection of the veins is retarded and resistance

  feral is established. Using inserts with

  different lengths and arrangements and are made up of

  different materials, resistance can be used to adapt

  the midsole to the individual or specific activity

  specific nature. Although this embodiment has

  has been shown with reference to a composite midsole

  with longitudinal ribs, it can also be used

  use a midsole with ribs

  cross. In addition the inserts 94 preventing a bending

  can be used with different configurations-

  ribs in that a rib of each pair of ribs is arranged obliquely with respect to the second rib of this pair of ribs. In addition, although the embodiment of Figure 16 behaves particularly well in the case of the use of solid inserts 94, one could imagine to replace these inserts with inserts

shaped tubes.

  In Figure 17 there is shown another embodiment of the present invention. This figure represents a shoe comprising a midsole comprising

  several pairs of ribs, each pair of ribs

  cutting a first rib 90 and a second rib 92.

  describes me previously, if a weight is applied to the sole-

  intermediate, all the ribs flex initially until a first rib of a pair of ribs comes into contact with a second rib of a neighboring pair of ribs. At this moment, if an additional force e-st

  applied to the midsole, all the ribs

  begin to compress. Although this embodiment provides a midsole having excellent constitution, it has been found that, when the midsole dimensions are reduced to a total thickness of between 0.76 cm and 1.02 cm, the thickness of the ribs being reduced in a proportionate manner, an undesirable noise appears due to the appearance of a contact between ribs of neighboring pairs of ribs, and to the spacing

of these ribs one of the other.

  This problem has been solved by inserting a joining element 98 present between the ribs 90 and a pair of ribs and the ribs 92 of a neighboring pair of ribs. This element 98 can be inserted between all

  ribs 90 and 92 or between most of these nerves

  and preferably consists of a rubber-like material which can stretch and deform and

  also absorb energy. This element 98 prevents

  contact between the ribs 90 and 92 and improves the shock absorption characteristic in accordance with the present invention.

  tion, under the effect of the triggering of the compression

  that the vertical force is applied originally to the sole

  intermediate and not when the ribs come into contact

  reciprocal tact. In this way the forces bringing each

  bending ribs are immediately attenuated by compres-

26157 4

  addition of the connecting element 98. In addition, the

  This prevents the lateral ribs 90 and 92 from being displaced laterally by blocking the ribs 90 and 92 at their central zone, forming a continuous horizontal structure, which makes it possible to control pronation and supination to a greater extent.

  In addition, although this embodiment has been

  with reference to a midsole incorporating

  longitudinal ribs, it can also be applied to

  midsole having transverse ribs.

  In addition, the connecting elements 98 can be used with the different configurations of ribs represented by the figures or with any configuration of ribs insofar as one rib of each pair of ribs is arranged obliquely with respect to the second rib. of each pair of ribs. In addition, the connecting elements 98 do not fill the entire empty space

  present between ribs 90 and 92, but are generally

  strung between the midpoints of these ribs.

  In addition, it should be noted that it is possible to use

  your other midsole configurations as long as

  the latter initially flexes until each

  vure is applied against a neighboring vein, at which moment

  the ribs of the midsole are beginning to be

  awarded in the case of the application of an additional force

  silent. For example, the ribs 18 can be separated from each other by a variable space or have a

  variable length to obtain the cushioning effect

  maximum, or may have a variable thickness for specific weight loads. In addition, the spacing and the length of the ribs can be modified according to the particular nature of the sport or activity, with which the shoe can be used. As shown

  in FIG. 7, the space 19 between the two ribs is

  below the space 21 between two additional ribs.

  In addition the lengths of the different ribs can vary.

  to laugh from one to the other. Moreover, although all the figures represent a shoe sole having ribs

  arranged either parallel or transverse to the long axis.

  of the sole of the shoe, these ribs may

  It should be arranged at different angles to the longitudinal axis. In addition the tubes or inserts described

  above may be inserted permanently during the manufacture of

  foot sole or may be

  directly by the user into the

lar.

  Although the present invention has been described with reference in particular to the arrangement shown in the drawings

  annexed, it will be understood that this does not in any way constitute

  a limitation to the present invention.

26157C4

Claims (11)

  1. Sole assembly for a shoe (10),   carrying an insole or first (12) located directly   below the boot, a midsole (14) disposed directly beneath said insole.   and having a plurality of pairs of ribs   (18; 28; 38; 50; t2; 60,62; 66,68,70,72; 90,92);   -outdoor or wear (16) located directly above   under said midsole, and wherein the nerves   pairs of parallel ribs (18; 28; 38; 50,52;   62; 66,68,70,72; 90,92) are spaced apart from one another;   screw of adjacent couples of ribs, each of said pairs of ribs having a first rib (20; 30; 40; 50;; 66; 70; 90) and a second rib (22; 32; 42; 52; 62; 68; ; 92)   and each of said first ribs is bent in direction   second rib, which is associated with it, is characteristic of   in that a compressible element (64; 82; 94 98) is   between said first and second ribs of at least one said pairs of ribs.   2. Sole assembly according to claim 1,   characterized in that said compressible element is an element   joining member (64; 94; 98) working in compression.   3. sole assembly according to claim 2, characterized in that said connecting member working in compression (64) is provided between the two ribs of said   neighboring pair of parallel veins (70,72).   4. Sole assembly according to claim 1,   characterized in that each of said second ribs is   curved towards the first rib associated with it OETC.   The sole assembly of claim 2, characterized in that said compression joining member (64; 98) is disposed between the midpoints   said first and second ribs (66,68; 70,72; 90,92)   said parallel pairs of ribs.   The sole assembly of claim 1, characterized in that said compressible member (82) substantially fills the space between the ribs (50,52). a pair of said ribs.   7. sole assembly according to claim 6,   characterized in that said compressible elements   (94) substantially fill the space between   siers couples said ribs (90,92).   8. sole assembly according to claim 6, characterized in that each of said ribs (50,52) and each of said compressible elements (82) extend into   the direction of the longitudinal axis of said shoe (10).   9. sole assembly according to claim 7, characterized in that each of said ribs (90,92) and each of said compressible elements (94) extend into   the direction of the longitudinal axis of said shoe (10).   10. sole assembly according to claim 8, characterized in that each of said ribs (50,52) and each of said compressible elements (82) extending into   the direction of the transverse axis of said shoe (10).   11. sole assembly according to claim 9, characterized in that each of said ribs (90, 92) and each of said compressible elements (94) extend into   the direction of the transverse axis of said shoe (10).