EP3691488A1 - Semelle pour article chaussant a amortissement progressif - Google Patents
Semelle pour article chaussant a amortissement progressifInfo
- Publication number
- EP3691488A1 EP3691488A1 EP18786884.9A EP18786884A EP3691488A1 EP 3691488 A1 EP3691488 A1 EP 3691488A1 EP 18786884 A EP18786884 A EP 18786884A EP 3691488 A1 EP3691488 A1 EP 3691488A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sole
- foot
- zones
- footwear
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 title claims abstract description 39
- 230000000750 progressive effect Effects 0.000 title description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 53
- 210000002683 foot Anatomy 0.000 claims description 131
- 239000000463 material Substances 0.000 claims description 65
- 235000019589 hardness Nutrition 0.000 claims description 37
- 230000035939 shock Effects 0.000 claims description 22
- 210000001872 metatarsal bone Anatomy 0.000 claims description 15
- 210000000474 heel Anatomy 0.000 claims description 12
- 210000000459 calcaneus Anatomy 0.000 claims description 8
- 230000003749 cleanliness Effects 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- 239000013598 vector Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 230000002500 effect on skin Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 230000009467 reduction Effects 0.000 description 4
- 230000009191 jumping Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- BFMKFCLXZSUVPI-UHFFFAOYSA-N ethyl but-3-enoate Chemical compound CCOC(=O)CC=C BFMKFCLXZSUVPI-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 210000003371 toe Anatomy 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 210000001255 hallux Anatomy 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
- A43B13/188—Differential cushioning regions
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
- A43B13/383—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process pieced
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/1425—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the ball of the foot, i.e. the joint between the first metatarsal and first phalange
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/1435—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the joint between the fifth phalange and the fifth metatarsal bone
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/1445—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the midfoot, i.e. the second, third or fourth metatarsal
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
- A43B7/145—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the toes, i.e. the phalanges
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1475—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the type of support
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/1475—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the type of support
- A43B7/148—Recesses or holes filled with supports or pads
Definitions
- the present invention relates to cushioning soles for use in an article of footwear between an outer sole of the footwear intended to come into contact with the ground, and the plantar surface of a user's foot engaged in the footwear article.
- Removable insoles are generally used, generally limited by an upper main surface adapted to be in contact with the plantar surface of the foot, by a lower surface adapted to be in contact with the footwear sole, and by a shaped peripheral contour. to engage in the inner contour of the footwear.
- the removable insoles generally have a purpose of compensation of size or shape, for a better adaptation of the footwear on the foot of the user.
- WO 2005/013746 A1 has already described a removable insole intended to be integrated into an article of footwear to ensure effective shock absorption of the foot during use in running or running, and to simultaneously ensure certain stability of the foot in the shoe by opposing the relative movements of the foot relative to the shoe during walking, running and lateral movements or rotation during changes of direction.
- a sole having a continuous support zone of lower stiffness material and two zones of material with greater stiffness.
- the bearing zone occupies the heel zone, the cuboid zone, the fourth and fifth metatarsal head zone, and the big toe zone.
- a first zone with greater stiffness at least partially surrounds the heel area.
- a second area of greater stiffness forms a support for the second to fifth toes.
- This sole has the effect of lifting the sole of the foot and promote the unwinding of the foot when walking.
- the inner edges of the zones of greater stiffness are inclined so that the continuous bearing zone partially covers the areas of greater stiffness, to avoid the presence of sharp edges likely to cause pain.
- intermediate soles fixed in the shoe between the outer sole and the first mounting or an inner sole, and structured to provide damping vertical forces. But these midsoles do not provide stability of the foot, and they do not solve the problem of shock waves in the spine of the user during fast walks, races or jumps.
- the problem proposed by the present invention is to design a sole intended to be integrated with an article of footwear, which ensures good positioning and stability of the foot in the shoe to prevent the relative inadvertent movements of the foot relative to the shoe, and which simultaneously provides a significant reduction of the shock wave that propagates to the cervical spine of the user, during brisk walking, running, jumping and lateral movements or rotation during changes of direction.
- the invention provides a cushioning soleplate that can be interposed in an article of footwear between an outer sole of the article of footwear and the plantar surface of a foot engaged in the article of footwear and having bearing protrusions to the cutaneous portion limited by a peripheral edge, the cushioning soleplate being limited by an upper main surface of the sole, a lower main surface of the sole adapted to be oriented towards the outer sole of the footwear, and by a peripheral contour shaped to protrude from the plantar surface of the foot and to follow the inner contour of the footwear, the cushioning sole having main surface areas having at least two different stiffness or respective hardness, wherein:
- the damping sole comprises sole support zones each of which is arranged under a respective bearing protrusion of the foot, and comprises sole braking zones,
- said sole braking zones surround said sole support zones and comprise in particular a continuous band between the support zones and the sole periphery contour, the sole bearing zones consist of a first material, while the sole braking zones consist of a second material,
- the first material has a stiffness or relative hardness lower than that of the second material
- the sole support zones are limited by respective lateral faces of the braking zones forming a boundary between the first material and the second material
- the stiffness or relative hardness of said first material is between 5 and 35 Shore A
- the stiffness or relative hardness of said second material is between 20 and 40 Shore A, with a difference between said stiffnesses or relative hardnesses of at least 5 Shore At about 15 and about 15 Shore A
- said respective lateral faces of the braking zones are inclined towards the upper main sole surface, forming a generally conical area of braking zone surrounding at least one of the sole bearing zones coming under a corresponding bearing prominence of the foot,
- the respective lateral faces are arranged in such a way that, when the foot is in static support on the soleplate, all or most of the sections of the respective lateral faces come to the right of the peripheral edge of the cutaneous portion of said respective bearing protrusion; of the foot, so that said respective bearing protrusion of the foot engages the peripheral edge of its cutaneous portion in said at least one of the sole bearing areas, and comes to bear along its circumference against the generally conical surface formed by the lateral faces of the sole braking zones surrounding said at least one sole bearing zone.
- first and second materials have stiffnesses or relative hardnesses expressed according to the Shore A scale, they are elastically deformable materials which resume their initial shape at rest after a compressive stress.
- the chosen values of stiffness or relative hardness of the first and second materials eliminate by themselves any risk of pain in the foot of the user engaged on the damping sole, whatever the position and the orientation of the lateral faces of the zones of braking.
- the generation of the shock waves is related to an increase in pressure at the periphery of the support zone.
- the pressures were measured at the periphery of the sole support zones, using the heads of the first and second metatarsals, for example, during a brisk walk.
- the pressures are greater than or equal to 4500 g per square centimeter. It is understood that, during rapid walking, racing, jumping or changing direction, these significant transient pressures generate shock waves.
- the angle of inclination between said lateral faces of the sole brake zones and the upper main sole surface is between 15 ° and 60 °. Good results can be obtained when the angle of inclination between said side faces and the upper main surface of sole is about 45 °.
- the peripheral cushioning and damping effects also depend on the thickness of the damping soleplate, in combination with the stiffness or relative hardness values of the first and second materials. It is therefore preferable that the deformation of the damping sole is compatible with the pressure forces exerted by the foot of the user during the brisk walk and the race or jumps with changes of direction, that is to say to say that this deformation remains incomplete during the maximum pressure forces exerted by the foot. Whereas during fast-walk and heel strike, the maximum pressure forces are greater in the heel zone of the foot than in the anterior zone, it is advantageous to provide that the thickness of the cushioning sole varies along its length, with a greater thickness in the rear zone and a smaller thickness in the front zone of the damping sole.
- a simplification consisting in considering, in the human foot, anterior prominence of the foot formed by the phalangettes of the foot, and a prominent prominence of the formed foot. by the metatarsal heads of the foot, by the anterolateral part of the calcaneus, by the cuboid, by the fifth metatarsal of the foot, and by the heel of the foot.
- a damping sole comprising: an anterior support zone of sole of first material, shaped and arranged in a manner to come, when using the sole, under a prominence of anterior support of the foot formed by the phalangettes of the foot,
- a main support zone of sole of first material shaped and arranged in a manner to come, when using the sole, under a protrusion of the main support of the foot, and comprising a distal support part arranged with to come under the metatarsal heads of the foot, a part of external support arranged to come under the fifth metatarsal of the foot, under the cuboid and under the anterolateral part of the calcaneus, and a posterior support part arranged so as to come under the heel of the foot,
- the anterior support zone being separated from the assembly formed by the main bearing zone by an intermediate braking intermediate zone of the second material.
- the cushioning sole may constitute a midsole fixed in the article of footwear between the outer sole and the first mounting, or may constitute an inner sole.
- the cushioning sole may constitute a removable insole whose upper main surface is adapted to be in contact with the plantar surface of the foot, whose lower main surface is adapted to be in contact with an insole of the foot. the article of footwear, and whose peripheral contour is shaped to engage in the inner contour of the footwear.
- a good peripheral wedging of the foot of the user with respect to a footwear item requires that the removable insole is itself well wedged, longitudinally and laterally, in the footwear when it is interposed in the footwear. article of footwear between an insole of the article of footwear and the plantar surface of the foot.
- the upper main surface of the removable insole is generally flat, and that the removable insole comprises around its perimeter a peripheral facet generally inclined towards the lower main surface of the sole.
- the peripheral facet may advantageously be inclined at an average inclination of 20 to 70 °.
- the first and second materials necessarily have a certain porosity to have a deformation capacity satisfactory elasticity, said porosity causing a possibility of penetration of microbial agents inside said first and second materials, it is recommended, for hygiene reasons, to provide that the removable insole comprises according to its upper main face a coating of cleanliness.
- the damping soleplate according to the invention may consist of an assembly by gluing, or any other means, of a first elastomer material constituting the sole bearing zones, and a second elastomer material constituting the sole braking zones, with the bonding of a top liner.
- the invention provides an article of footwear comprising at least one damping sole as defined above.
- an article of footwear may comprise such a damping fixed intermediate sole, or such a cushioning removable insole, or both such damping fixed intermediate sole and such a damping removable insole.
- the present invention proposes the use of a cushioning sole interposed in an article of footwear between an outer sole of the article of footwear and the plantar surface of a foot engaged in the article of footwear and having prominences of cutaneous support limited by a peripheral edge, the cushioning sole being limited by an upper main surface of the sole, a lower main surface of the sole adapted to be oriented towards the outer sole of the footwear, and a peripheral contour shaped to protrude from the plantar surface of the foot and to follow the interior contour of the footwear, the cushioning sole having main surface areas having at least two different stiffnesses or respective hardnesses, wherein:
- the damping sole comprises sole support zones each of which is arranged under a respective bearing protrusion of the foot, and comprises sole braking zones,
- said sole braking zones surround said sole support zones and comprise in particular a continuous band between the support zones and the sole periphery contour
- the sole bearing zones consist of a first material, while the sole braking zones consist of a second material,
- the first material has a stiffness or relative hardness lower than that of the second material
- the sole bearing zones are limited by respective lateral faces of the sole braking zones forming a boundary between the first material and the second material
- the stiffness or relative hardness of said first material is between 15 and 35 Shore A
- the stiffness or relative hardness of said second material is between 20 and 40 Shore A, with a difference between said stiffnesses or relative hardnesses of at least 5 Shore At about 15 and about 15 Shore A
- said respective lateral faces of the braking zones are inclined towards the upper main sole surface, forming a generally conical area of braking zone around at least one of the sole bearing zones,
- the respective lateral faces are arranged in such a way that, when the foot is in static support on the soleplate, all or most of the sections of the respective lateral faces come to the right of the peripheral edge of the cutaneous portion of said respective bearing protrusion; of the foot, so that said respective bearing protrusion of the foot engages the peripheral edge of its cutaneous portion in said at least one of the sole bearing areas, and comes to bear along its circumference against the generally conical surface formed by the lateral faces of the sole braking zones surrounding said at least one sole bearing zone.
- FIG. 1 illustrates a top view of a removable foot insole of the right foot according to one embodiment of the present invention, with the superposition of skeletal parts of the foot component of the foot support prominences;
- FIG. 2 is a top view of the upper main sole surface according to the embodiment of FIG. 1, cleanliness liner removed, illustrating simultaneously the arrangement of the sole bearing zones and the sole braking zones. ;
- FIG. 3 is a rear view in cross section of the sole of Figure 2, viewed along the transverse sectional plane 1-l;
- FIG. 4 is a side view in longitudinal section of the sole of Figure 2, viewed along the longitudinal sectional plane ll-ll;
- a removable insole according to the invention is limited by an upper main surface 1, a lower main surface 2, and a peripheral contour 3.
- the lower main surface 2 is adapted to be in contact with a footwear insole.
- it can be adapted to an article of footwear whose bearing surface is flat or corrugated in the longitudinal direction to follow the usual general anatomical curvature of the foot, and whose bearing surface is generally flat or concave in the transverse direction.
- the peripheral contour 3 is shaped to engage in the inner contour of the article of footwear, and for this purpose has a view from above the usual curvatures of the peripheral contours of the known removable insoles.
- the upper main surface 1 has, at rest, a generally flat general shape for the removable insoles, but this shape can be variable without departing from the scope of the present invention, in particular to adapt to the user's arch.
- the thickness of the removable insole is slightly variable along a longitudinal plane 11-11 ( Figure 2), and also varies depending on the transverse position of the longitudinal plane considered. This thickness is greater (H2) in the posterior zone below the heel of the foot, and lower (H1) in the anterior end zones. In this case, an increased damping effect is obtained in the posterior zone.
- FIG. 2 shows the longitudinal plane 11-11 of the sole, perpendicular to the general plane of the sole and passing into the sole area intended to be under the space between the first and second toes.
- the thickness H1 at the front end of a removable sports insole is illustrated in FIG. 4, i.e. in the plane II-II shown in FIG. 2, the thickness H1 at the front end of a removable sports insole.
- the thickness of the removable insole may be of the order of 4 to 9 mm, while its thickness H2 at the posterior end may be of the order of 5 to 1 1 mm, the thickness of the removable insole being variable, for example continuously, or at least without abrupt discontinuity, along its length between the reduced thickness H1 at the anterior end and the increased thickness H2 at the posterior end.
- a thickness H1 from 3 to 6 mm at the front end we can choose slightly smaller thicknesses, for example a thickness H1 from 3 to 6 mm at the front end, and a thickness H2 from 4 to 8 mm at the rear end.
- the thicknesses are given by way of illustrative example, and are subject to variations as a function, in particular, of the depreciation to be produced and the shoes to be fitted. It will thus be possible to choose increased thicknesses to increase the damping properties, or conversely.
- the length L1 of the removable insole European size 43 is 30 cm. Its width is variable depending on the transverse plane considered: the maximum width L2 in the transverse plane l-l is about 10 cm, and is gradually decreasing forward and backward.
- the removable insole in the embodiment illustrated in Figures 1 to 4, comprises a base structure 5 on which is fixed a cleanliness liner 4.
- the cleanliness liner 4 may for example be an Alcantara fabric of 0.5 to 1 mm thick, for a removable sports insole, or can be for example a leather thickness of 0.5 to 0.8 mm for a removable insole city.
- the upper film 4b may advantageously be made of an anti-bacterial material. It is thus possible to choose, for the basic structure 5, a different material, adapted to the desired effects, and which one does not have to make sure of the compatibility with the contact of the foot.
- the removable insole of the invention is intended to cooperate with the foot 300 ( Figures 3, 4) in a particular way, to ensure the functions of effective shock absorption of the foot 300, foot stability 300 in the shoe, and reduction of shock waves, during rapid walking, running, rotating, jumping or changing of direction.
- the removable insole cooperates essentially with the prominences of support of the foot, whose skeleton is illustrated in Figure 1.
- FIG. 1 there is shown in top view, the horizontal projection of the skeleton 20 of the foot.
- phalangettes 21, 22, 23, 24 and 25 the metatarsal heads 26, 27, 28, 29 and 30, the calcaneus 31 which has a posterior portion 31a constituting the heel and an antero-external portion 31b, an outer part of the cuboid 32, and finally the fifth metatarsal 33.
- the set of phalangettes 21-25 covered with their respective cutaneous portions not shown in this figure, constitutes a protuberance of the anterior support 100 of the foot.
- a main bearing prominence 200 of the foot is formed by the metatarsal heads 26-30, the fifth metatarsal 33, the cuboid 32, the antero-external portion 31b of the calcaneus 31, and the posterior portion 31a. of the calcaneus 31, or heel, each of these skeletal elements being covered with its respective cutaneous part.
- the prominence of the anterior support 100 of the foot is limited by an anterior peripheral edge defined by the outer peripheral edges of the cutaneous portions of the phalangettes 21-25.
- the main bearing prominence 200 of the foot is limited by a main peripheral edge defined by the outer peripheral edges of the cutaneous portions of the skeletal elements 26-33 forming said main bearing prominence 200.
- the removable insole according to the invention comprises, in this embodiment, sole bearing areas based on a first material, and sole braking zones based on a second material.
- the sole support zones comprise an anterior support zone 6 of sole, designed to come under the prominence of the anterior support 100 constituted by the phalangettes 21-25 of the user's foot, and a main support zone. 7, intended to come under the prominence of the main support 200 of the foot, and having a distal support portion 7a disposed to come under the metatarsal heads 26, 27, 28, 29 and 30 of the foot, a an outer support portion 7b arranged to lie beneath the fifth metatarsal 33, below the cuboid 32 and under the antero-external portion 31b of the calcaneus 31, and a posterior support portion 7c arranged to come under the heel from the foot or posterior portion 31a of calcaneus 31.
- the sole braking zones occupy the entire sole surface which is not occupied by the sole bearing areas 6 and 7, and are made of second material.
- these braking zones there is a peripheral edge 10 which constitutes the entire periphery of the removable insole, a plantar zone 1 1, and an intermediate transverse zone 12 which separates the anterior support zone 6 from the sole. of the main support area 7 sole.
- Each of the support zones 6 and 7 of the sole is limited by a continuous contour, constituted by a respective lateral surface of the braking zone forming a boundary between the first material constituting the sole bearing area 6 or 7 and the braking zones. 10, 1 or 12 of sole that surround the bearing areas 6 and 7 of the sole and which consist of said second material.
- said lateral face 70 oriented towards the center of the sole, is inclined towards the upper main surface 1 of sole at an inclination angle A.
- the angle of inclination A is constant and about 45 °. In practice, good results can be obtained by providing an inclination angle A of between 15 ° and 60 °.
- the anterior bearing zone 6 of sole is bordered forwards and backwards, in a similar way, by the respective posterior lateral faces 60 and front 61 of the 10 and 12, oriented towards the center of the anterior support zone and also inclined towards the upper main surface 1 of sole at the same angle of inclination A.
- the anterior bearing area 6 of the sole is also bordered, at left and right, by the lateral face 70 of the peripheral edge 10 of the braking zone, similarly to that shown in Figure 3 for the main support zone 7 sole.
- distal support portion 7a is bordered in front by the rear lateral face 71 of the intermediate braking zone 12, and behind by the anterior lateral face 72 of the plantar zone 1 1 braking, while the part posterior support 7c of the main bearing area 7 of the sole is lined anteriorly by the posterior lateral face
- the horizontal dimension of the corresponding support zone 6 or 7 of sole is greater in the vicinity of the upper main surface 1 of the sole than in the vicinity of the lower main surface 2 sole.
- the outline of each of the sole support zones 6 and 7 in the vicinity of the upper main surface 1 of sole is illustrated in solid lines, and the outline of same bearing areas 6 and 7 of sole in the vicinity of the lower main surface 2 sole.
- FIG. 4 the relative position of the sole bearing zones 6 and 7 and the bearing protrusions 100 and 200 of the foot 300 is illustrated, when the removable insole according to the invention is used in a article of footwear between the plantar surface of the foot 300 and an insole of the article of footwear.
- a static support that is to say when the user is standing still, resting on the removable insole, the prominence of the anterior support 100 of the foot 300 bears on the zone anterior support 6 sole, while the main bearing prominence 200 of the foot 300 is supported on the main support area 7 sole.
- at least some of the lateral faces 60, 61 (FIG. 4) and 70 (FIG.
- sole braking zones 10, 12 come to the right of the peripheral edge of the anterior bearing prominence 100 of the foot.
- the prominence of the anterior support 100 of the foot 300 engages, according to the peripheral edge of its cutaneous part, in the anterior support zone 6 of the sole, and comes to bear along its circumference against the surface generally conical formed by the side faces 60, 61 and 70 inclined braking zones 10 and 12 sole which surround the anterior support zone 6 sole.
- at least some of the lateral faces 70, 71, 72, 73, 74 of the sole braking zones come to the right of the peripheral edge of the main bearing prominence 200 of the foot 300.
- the protruding main bearing 200 of the foot 300 engages, according to the peripheral edge of its cutaneous part, in the main bearing area 7 sole, and comes to bear according to its periphery against the generally conical surface formed by the side faces inclined 70, 71, 72, 73, 74 of the braking zones 10, 11, 12 of sole that surround the posterior bearing zone 7.
- the bearing prominences 100, 200 of the foot 300 are formed of an inner bone part, covered with a cutaneous layer.
- lateral and / or anteroposterior forces are applied by the foot to the removable insole, and the foot 300 tends to move horizontally, towards one or the other side or towards the front or the back, depending on efforts.
- These movements are, however, progressively curbed and limited by the damping effect of the removable insole according to the invention, so that only the cutaneous portions of the bearing protrusions 100 and 200 of the foot 300 can exit slightly from the d corresponding support 6 or 7 sole.
- cross hatching is illustrated in FIG. posterior 80, 81, 82, 83, 84 and 85 possible skin areas of the bearing protrusions 100 and 200 of the foot 300, the value of the maximum displacements may be of the order of 10 to 12 mm.
- the first and second elastically deformable materials are chosen with different stiffness or relative hardness, the first material having a stiffness or relative hardness lower than that of the second material.
- the stiffness or relative hardness of the first material may be between 15 and 35 Shore A approximately, while the stiffness or relative hardness of the second material may be between 20 and 40 Shore A approximately, with advantageously a difference in stiffness or relative hardnesses of at least about 5 Shore A and at most about 15 Shore A.
- the sole bearing areas with stiffness or lower relative hardness receive the respective bearing protrusions 100 and 200 of the foot 300, and thus suffer the most important mechanical forces of the foot 300. They deform elastically under the action of the vertical pressure of the foot . Due to the fact that their stiffness or relative hardness is lower, the strain is increased under stress of the anterior support areas 6 and main 7 sole, favoring a certain localized depression of the foot 300 in these areas.
- the bearing zones 6 and 7 with stiffness or lower relative hardness can be determined with curvilinear contours as shown in FIGS. 1 and 2.
- the anterior support zone 6 consists of the association of five oval zones as illustrated, each corresponding to one of the phalangettes 21 -25 covered with their respective cutaneous part.
- the distal portion 7a of the main bearing zone 7 is bounded by an anterior edge 70a with five arches each corresponding to one of the metatarsal heads 26-30 of the foot covered with their respective cutaneous portion, by two edges.
- longitudinal side 70b and 70c, and a transverse rear edge 70d occupying a little less than the inner half-width of the removable insole.
- the posterior support portion 7c of the main support zone 7 is oval or circular, adapted to the shape of the heel of the foot of the user.
- the outer bearing portion 7b of the main bearing zone 7 has a width that gradually decreases from its connection to the posterior support portion 7c until it is connected to the distal portion 7a.
- the anterior bearing zone 6 is circumscribed in a polygon defined by the vectors ab (2.6 cm, 240 °), bc (2.6 cm, 180 °), cd (0.9 cm, 120 °), (1, 9 cm, 50 °), ef (6.3 cm, 120 °), f (2.5 cm, 0 °), gh (5 cm, 310 °), hi (1.6 cm, 270 °) ), ia (0.8 cm, 0 °);
- the assembly forming the main bearing zone 7 is circumscribed in a polygon defined by the vectors: jk (2.2 cm, 270 °), kl (4.6 cm, 180 °), Im (2.2 cm , 90 °), mn (1.1 cm, 0 °), no (3.7 cm, 105 °), op (4.8 cm, 195 °), pq (7.7 cm, 215 °), qr (3.7 cm, 160 °), rs (3.2 cm, 90 °), st (1.88 cm, 35 °), u (14.8 cm, 10 °), uv (4.3 cm, 305 °), v 1 (1.7 cm, 270 °).
- the other sizes are determined by homothety.
- the cleanliness liner 4 is sufficiently thin and flexible not to affect the effectiveness of the base structure 5 at areas of different relative hardness.
- the upper main surface 1 sole is generally flat, and that the removable insole comprises according to its periphery 3 a peripheral face 14 generally inclined towards the lower main surface 2 of sole, with an average inclination B of 20 to 70 °.
- One embodiment consists in providing a sole entirely made of a second elastomer material of hardness equal to the stiffness or higher relative hardness, cutting the zones intended to constitute the sole bearing areas, to be glued in the zones thus cut from the plates. of a first elastomeric material with stiffness or lower relative hardness, then to stick the cleanliness liner 4.
- the closed body material may be closed cell foam elastomers of appropriate densities to achieve the desired stiffness or relative hardness. Good results have been obtained using, as the second material forming the braking zones 10, 11 and 12, an ethyl vinyl acetate (EVA) foam, while the first material forming the bearing zones 6, 7 is formed of a polyurethane foam.
- EVA ethyl vinyl acetate
- the shock absorbing sole is a removable insole.
- the cushioning sole is an intermediate sole, fixed in the footwear between the outer sole and the first mounting or an inner sole of the footwear.
- the structure of the damping sole is also as illustrated in Figures 1 to 4, the difference lies only in the intermediate position of the damping sole in the shoe, and possibly in its thickness may be greater than in the case of a removable insole.
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759350A FR3072006B1 (fr) | 2017-10-05 | 2017-10-05 | Semelle pour article chaussant a amortissement progressif |
PCT/IB2018/057744 WO2019069277A1 (fr) | 2017-10-05 | 2018-10-05 | Semelle pour article chaussant a amortissement progressif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3691488A1 true EP3691488A1 (fr) | 2020-08-12 |
EP3691488B1 EP3691488B1 (fr) | 2024-01-10 |
Family
ID=60450874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18786884.9A Active EP3691488B1 (fr) | 2017-10-05 | 2018-10-05 | Semelle pour article chaussant a amortissement progressif |
Country Status (9)
Country | Link |
---|---|
US (1) | US11388951B2 (fr) |
EP (1) | EP3691488B1 (fr) |
JP (1) | JP2020535948A (fr) |
CN (1) | CN111182812A (fr) |
BR (1) | BR112020006650A2 (fr) |
CA (1) | CA3078339A1 (fr) |
FR (1) | FR3072006B1 (fr) |
RU (1) | RU2020115150A (fr) |
WO (1) | WO2019069277A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111770699A (zh) | 2018-01-24 | 2020-10-13 | 耐克创新有限合伙公司 | 包括聚烯烃板的鞋底结构和由其形成的鞋类物品 |
WO2021016037A1 (fr) | 2019-07-19 | 2021-01-28 | Nike Innovate C.V. | Structures de semelle comprenant des plaques de polyoléfine et articles chaussants formés à partir de celles-ci |
US11696620B2 (en) | 2019-07-19 | 2023-07-11 | Nike, Inc. | Articles of footwear including sole structures and rand |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2709546A1 (de) * | 1977-03-04 | 1978-09-07 | Hans Caesar Knellwolf | Fussunterlage fuer schuhwerk, wie sohle, einlagesohle, schuheinbauteil oder schuheinlage |
US4551930A (en) * | 1983-09-23 | 1985-11-12 | New Balance Athletic Shoe, Inc. | Sole construction for footwear |
US5014706A (en) * | 1988-09-15 | 1991-05-14 | C. Nicolai Gmbh & Co. Kg | Orthotic insole with regions of different hardness |
WO1998051178A1 (fr) * | 1997-05-14 | 1998-11-19 | Hans Seiter | Semelle interieure de chaussure |
US6779282B2 (en) * | 1998-12-23 | 2004-08-24 | Groehninger Frank Friedrich | Insole |
US6931768B2 (en) * | 2002-04-18 | 2005-08-23 | Dc Shoes, Inc. | Skateboard shoe with sole of varying hardness |
FR2858525B1 (fr) | 2003-08-05 | 2006-01-27 | Jean Luc Rhenter | Semelle plantaire a amortissement selectif |
KR100933527B1 (ko) * | 2009-06-04 | 2009-12-23 | 주식회사 트렉스타 | 신발용 인솔 |
US8166674B2 (en) * | 2009-08-03 | 2012-05-01 | Hbn Shoe, Llc | Footwear sole |
TWI609643B (zh) * | 2012-01-19 | 2018-01-01 | Zheng Xian Xiong | 符合人體工學的鞋子 |
CN206101789U (zh) * | 2016-10-17 | 2017-04-19 | 杭州安足科技有限公司 | 具有阶梯硬度的鞋垫 |
-
2017
- 2017-10-05 FR FR1759350A patent/FR3072006B1/fr active Active
-
2018
- 2018-10-05 US US16/650,028 patent/US11388951B2/en active Active
- 2018-10-05 JP JP2020540862A patent/JP2020535948A/ja active Pending
- 2018-10-05 EP EP18786884.9A patent/EP3691488B1/fr active Active
- 2018-10-05 RU RU2020115150A patent/RU2020115150A/ru unknown
- 2018-10-05 WO PCT/IB2018/057744 patent/WO2019069277A1/fr unknown
- 2018-10-05 CA CA3078339A patent/CA3078339A1/fr not_active Abandoned
- 2018-10-05 BR BR112020006650-8A patent/BR112020006650A2/pt not_active Application Discontinuation
- 2018-10-05 CN CN201880064866.5A patent/CN111182812A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US11388951B2 (en) | 2022-07-19 |
JP2020535948A (ja) | 2020-12-10 |
RU2020115150A3 (fr) | 2021-11-25 |
EP3691488B1 (fr) | 2024-01-10 |
BR112020006650A2 (pt) | 2020-09-24 |
CA3078339A1 (fr) | 2019-04-11 |
FR3072006A1 (fr) | 2019-04-12 |
WO2019069277A1 (fr) | 2019-04-11 |
FR3072006B1 (fr) | 2019-09-20 |
RU2020115150A (ru) | 2021-11-08 |
CN111182812A (zh) | 2020-05-19 |
US20200275738A1 (en) | 2020-09-03 |
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