CN1053884A - Article of footwear with an improved midsole - Google Patents

Abstract

A midsole, a portion of a midsole, or the like, for inclusion in an article of footwear having a soft, breathable upper. At least one post in the heel region having a sufficient thickness (height) to enable significant compressive deformation in a thickness dimension thereof with concomitant significant bulging deformation in an outer surface thereof perpendicular to the thickness dimension; these deformations occur only as a result of normal walking activity of the wearer of the article of footwear; thus, during normal walking activities, these deformations provide both a shock absorbing and a ventilating effect.

Description

The article of footwear that has the end in the improvement

The present invention relates to improved article of footwear, particularly have the shoes of improved step buffer unit and wearer foot air-breather.More particularly, the present invention relates to the improvement at the middle end.

A large amount of sport footwears such as running shoes, has obtained disclosing in the art, manyly sells on market, shows the various dissimilar middle ends of being intended to improve the sport footwear performance.Outer bottom is unique and the part ground actual contact, absorbs the performance of impacting in order to reach, and the outer bottom of different shape also is provided out.

Multiple product in the prior art is that people are known.Such as, on November 8th, 1988 is disclosed, authorizes S.C Blang's (S.C Brown) No. 4,782,603, United States Patent (USP).This patent provides a kind of independent molded middle end, underseal has been adorned series of parallel in being somebody's turn to do, isolated flexible pipe, and they are disposed in the position substantial transverse for the length of shoes, because the effect of wearer's step, these parallel flexible pipes are compressed.This patent points out that flexible pipe must possess enough elasticity and intensity, to stop the destruction of taking place along its perisporium.

Announce, authorize Gai Si people's such as (Giese) United States Patent (USP) and represented a kind of outer bottom that has hollow space for 4,316, No. 332 February 23 nineteen eighty-two.This hollow space is suitable for being used for placing absorbing the material that impacts, and is centered on by the relative harder edge part branch of outer bottom.

Announced that authorize the United States Patent (USP) that slips receives (Cavanagh) and disclose the situation that makes projection 4,608, No. 768, projection is inserted in the mesh supporting part, to form a middle end on September 2nd, 1986.Projection is to be made by the material harder than middle bottom material.

Announced on May 23rd, 1986, authorize the United States Patent (USP) 4 of Chu Sai (Tsal), 831, a kind of shoes with the end in gas permeability and the massage property are disclosed for No. 749, should have many protruding upward in the interior end, with wearer's the foot protruding ball in contacted top, and the protruding ball in bottom that also has many downward protrusions, so that be supported on the sole.Like this,, air-flow will be discharged from at the end in wearer's pin is fallen, and the aperture of flowing through and forming between the protruding ball of the protruding ball in first top and each bottom thus, makes wearer's foot ventilative and foot massaged.

Announced that the United States Patent (USP) of authorizing peace lattice (Anger) discloses the situation of using the labyrinth type exhaust passage between the upper base of footwear and sole for 4,685, No. 224 on August 11st, 1987.This patent is to want to provide a kind of swabbing action, makes air balls around moving and making wearer's foot ventilative.

Announce December 31 nineteen sixty-eight, authorize the United States Patent (USP) 3 of your gram (Anclaur) of Ansai, 418, the operating position that is used for the end in the shoes is disclosed for No. 731, it is provided with upper surface and the lower surface that elastomeric material is made, the upper surface at the interior end is provided with many blind holes, and lower surface is provided with many corresponding projectioies, so that exhaust effect to a certain degree is provided when Ambulatory Activity.

The immediate prior art of being met in the Preliminary development process is to announce on July 11st, 1989, authorize Lin Yangmao the United States Patent (USP) 4 of (Lin Ying-Mao), 845, No. 863, this patent disclosure the interior end or the middle end operating position in the footwear of reality dress.Its specification discussed a kind of air-locked in the end/interior bottom structure, it has the flexible member of downward protrusion, by the arrangement and the size of these flexible members, they are loaded in the receiving element in the outer bottom, so that buffering wearer's paces.The following the deficiencies in the prior art of having described of this patent:

" therefore, traditional middle end, can not provide anything aspect its each surperficial separate support or the distortion, thereby only be suitable for the wearer of a certain certain heavy magnitude or preference buffer capacity.

Need a kind of middle end that has many buffer elements, each buffer element to express an independent supporting and be out of shape independently with respect to holding element.Disclosed by on March 29th, 1988, authorize in No. 4,733,483, the United States Patent (USP) of woods (Lin) end in the disclosed tradition, above-mentioned needs generally can be met.Yet have been found that there is the tendency that produces the diving board effect at the disclosed flat outer bottom in there and the middle end, this makes heel bounce-back and vibration, unless pack into just fully in the middle end in the shoes in the formed cavity, otherwise the middle end tendency of inside sliding is always arranged.Therefore, the middle end, just need many buffer elements that have the independent supporting that can not slide or vibrate further.”

Announced on July 4th, 1989, be that the relevant United States Patent (USP) of authorizing Lin Yangmao (Lin Yung-Mao) discloses similar structure 4,843, No. 741 equally, but for the purpose of the weight at the end in alleviating, the projection that each element dangles downwards also has the endoporus of general cylindrical.

As for background material further, the reader can be shown " for better running shoes competition " literary composition by Larry Ellison Oswald Turnbull (Allson Turnball) referring to 42-44 page or leaf in July 15 " New Scientist " in 1989 (New Scientlst) magazine.And on the 45-46 page or leaf following closely, by Alexandria and Ben Naite (Alexander and Bennett) work " how flexible running shoes are? " one literary composition.The author has discussed the up-to-date trend in the sport footwear making, is intended to a part that expends the energy in each step is returned to the person of advancing.Disclosed many contents all are at the device of realizing that by this way portion of energy is returned in the prior art.The result of the test that Alexandria and Ben Naite conclude them is as follows:

" quality that heel is expected probably is exactly the compliance (or maximum distortion) of height, and this will reduce impulsive force.Treat this same problem in a different manner, heel should absorb the kinetic energy of pin and not produce big power, and like this, that the chances are is useful for the big numerical value aspect " maximum distortion " and " merit of distortion " two.”

" it seems that high energy is returned in the sole forepart, may be important (seeing Table 3) really.But, from our test, obtained about returning the percentile data of energy, still can't tell we actually shoes returned how many energy.For this reason, we need know original how many energy of having stored.The merit of compliance (or maximum distortion) and distortion is high more, and when sole was compressed, the energy that sole is stored was also just many more.The energy Total Return Ratio is high more, and the energy of reduction is also just many more in the elasticity knock-on.”

Its purpose of the present invention is not at will to greatest extent energy being returned to the person of advancing, even does not return at energy.The objective of the invention is to relax the slight impact of normally not advancing in person's paces, and be in buffering, to make the shoes internal ventilation of being worn.

For realizing this purpose, see, projection of the present invention or column must use very soft material, also see, must make these projections or column or towards the top, be positioned at the below of a ventilative and soft upper base (being also referred to as the end and the soft end sometimes), or make they from this upper base towards the below.The content of no less important is when these columns are compressed under a step effect of normally advancing passerby.They are bulging significantly, and the bulging effect is flowed the air between column, like this, by upper base the air of footwear and pin is flowed.The flexibility of stud materials has guaranteed a bigger numerical that " maximum distortion " arranged than fractional value for " merit of distortion ".

Recognize that this shoes help the person's of advancing joint and vertebra, in addition, also help wearer's foot certainly.

The invention provides a kind of article of footwear, comprised that at its bottom section some are easy to compress vertical projection or column with bulging along with each paces of wearer.This just provides a kind of buffer element of Special Significance, because it provides comfortable sole for foot, and quite suitable bottom profile, and provide buffering for each paces of wearer.Thermoplastic material has such compressibility, and promptly projection is compressed and distortion significantly, so that buffering wearer's first paces, the distortion of projection is accompanied by bulging significantly.This compression, bulging, and the recovery of projection shape subsequently impels the air in the sole site to flow effectively, so that make this article of footwear ventilation.

One embodiment of the present of invention provide the end in a kind of middle end or the part, and it is suitable for being included in the article of footwear, so that cushion and air permeable effect for the wearer provides paces.In the part at the end or the middle end comprise a bottom parts that stretches along at least a portion outer bottom of shoes, the middle end, also comprise the buffer element that projection constituted that is protruded perpendicular to base plate plane by many.Each projection is made by flexible thermoplastic rubber who is easy to compress or similar material.Projection is along backplane, and so just the foot for the wearer provides comfortable sole, with each paces of buffering wearer.The distribution of projection, size, quantity with and the compressibility of material be such, both they made that projection was easily deformable and were compressed significantly, with every paces of buffering wearer.Compression is accompanied by the bulging significantly of projection.This compression, bulging, and the recovery of projection shape subsequently make ambient air produce and flow, for this article of footwear is breathed freely.

In another embodiment, the invention provides a kind of article of footwear, comprise an outer bottom and a upper base.Outer bottom is provided with many upright projections of being made by flexible easy compression material.These projections are distributed on the outer bottom, so that for wearer's foot provides comfortable sole, and buffering wearer's paces.The distribution of these projections, size and quantity, and the compressibility of plastics is such, promptly they can be out of shape projection and are compressed significantly, so that every paces of buffering wearer.Compression is accompanied by the bulging significantly of projection.This compression, bulging and the recovery of projection shape are subsequently flowed air effectively along outer bottom, for this article of footwear is breathed freely.

Now in conjunction with the accompanying drawings, will be described in detail most preferred embodiment of the present invention, wherein:

Fig. 1 has represented the plane at the middle end that a most preferred embodiment according to the present invention is made.

Fig. 2 has represented the perspective view of the part of base plate shown in Figure 1.

Fig. 3,4 and 5 is side views of the part of base plate shown in Figure 2, has represented three embodiment of upright projection of the present invention.

Fig. 6 has represented a different embodiment of base plate, and it has a soft end.

Fig. 7 has represented to embody the partial sectional view of complete shoes of content of the present invention.

Fig. 8 has represented to adopt another embodiment of compressible this inventive concept of projection.

Fig. 9 has represented an outer bottom, and it has some cavitys or space, is used for laying the each several part that separates at the middle end of type shown in Fig. 2.

Figure 10 and 11 expressions 3 are the part of the such base plate of base plate as shown in Figure 2, and the shape of its projection has different modification.

Thetoe portion 41 of the base plate shown in Figure 12 presentation graphs 9, wherein, some is short partially gradually on length forprojection 53 foremost, to satisfy the needs of special mounting.

Figure 13 has represented a modification of the present invention.

Figure 14 has represented the structure according to the end in the part in the heel of footwear of the present invention.

Figure 15 has represented when the present invention is applied in women's shoes heel or the sandals heel, a modification of the present invention.

With reference to Fig. 1 of accompanying drawing, it has represented the plane at a middle end, and end generally is expressed as thebase plate 10 with manyupright projections 11 in this, in the present embodiment, these projections arrange that along thewhole middle ends 10 they begin expansion fromtoe portion 12, by sole part 13, up to heel 14.In the present embodiment, eachprojection 11 stands onbase plate 10, and is fixed on this base plate at its abutting end.Everyprojection 11 in the present embodiment is provided with acentre bore 16.

In the middle of both materials ofbase plate 10 andprojection 11 at the end identical, and have highly flexible whenbase plate 10, but when airtight, the injection molding manufacturing is preferably adopted at the whole middle end 10.The end, just will be suitable for being included in the article of footwear in this, and wherein,base plate 10 contacts with the end face of outer bottom, andprojection 11 protrudes upward.

The only material of having found that is used for this end is the thermoplastic resin of the sort of being called as " ultra-soft ", can get the GLS Plastics Company acquisition in stoke city from the U.S. 5, and (GLS Plastics of Woodstocd, IL 60098, U.S.A.They are with article number^#G 3294 sells).This material by being known as of providing of shell chemical company (the Shell Chemical Company) " carat " (Kraton) thermo-plastic compound of (trade mark) make, " carat " of optimal selection (Kraton) compound be " carat " (Kraton) D-2104 and " carat " (Kraton) D-3226(have Shore A (Shore A) hardness number [D-2240] 27 and 34 because they are the softest).

The ultra-soft thermoplastic material that is synthesized provide a kind of in bottom material, it has and is lower than 30 duremeter number, and preferably near 20.Regardless of the soft degree at the made middle end, it also will demonstrate fabulous elasticity and long service life.Certainly, except carat pauses (Kraton), also has other material, such as Estane (Estane, spandex), polyvinyl chloride or rubber.The necessary characteristic of material is that they can produceprojection 11 that some are easy to compress and that can be out of shape largely, (having the duremeter number that is lower than about 30 usually), but projection also requires to have long life-span and better elastic, in case so that after the compression stress elimination, projection can spring back to their original forms.Not really strict to the shape need ofprojection 11, no matter be hollow or solid, generally do not influence their deformability.In the embodiment in figure 1, they are made into hollow, so that save thermoplastic resin.

Refer now to Fig. 2 and Fig. 3, the part at the end during they have represented shown in Fig. 1 in the mode of perspective view and side view respectively.Can see that in Fig. 3 this embodiment is provided withlower projection 20, this just provides a spot of circulation of air below the middle end.In Fig. 4, projection is withlabel 20 and 21 expressions.Can see that in the embodiment shown in fig. 4, projection has the thickness (i.e. height) of variation.Yes for this thickness or height arbitrarily, it seems it is rational but its numerical value is lower than 10mm.

Can see that in Fig. 5 projection 22 is the appropriate locations at the end in being fixed to bybase plate 10, base plate is positioned at the centre of projection 22, and this has just increased the buffer capacity of impact naturally.

At Fig. 3, in 4 and 5, with dashed lines is illustrated incentre bore 16 inprojection 11,20,21 and 22.

Fig. 6 has represented an embodiment, and wherein, a part at the sort of middle end as shown in Figure 3 is provided with a top board 25, and it is suitable for using the bulk material manufacturing, and perhaps, it can be a kind of porous materials.Thus, guaranteed that air to a certain degree flows.In the figure,projection 11 is represented as compressive deformation and outside bulging.

Fig. 7 has represented to adopt the cutaway view of shoes of a kind of form of the present invention, and wherein, the sort of as shown in Figure 1 middle end is placed in the end face of an outer bottom 31 in the footwear, and one deck softness, ventilative upper base 30 covers at middle the end.

Fig. 8 has represented a modification, and wherein, the outer bottom 31 in embodiment illustrated in fig. 7 is replaced by outer bottom 32.The latter is provided withmany shrinkage pools 33, is used for holding and keeping theprojection 11 of aforementioned type.Like this, be used to make thebase plate 10 of these projection fix in position also just no longer to need.By bonding mode or other any suitable mode,projection 11 can be permanently secured in theshrinkage pool 33.

Fig. 9 has represented an embodiment, wherein,outer bottom 42 is provided with thepart 43 and 44 that cuts when making, like this, the appropriate size of the sort of base plate shown in Fig. 2,3 etc. and theseparate section 40 and 41 of shape these cavitys of just can directly packing into, thereby only occupy seldom vertical space in the inside of footwear.Constituteseparate section 40 and 41 fix in position effectively thus of the base plate at " the middle end ", overcome laterally and move.Certainly, aseparate section 40 and 41 central parts also might only be set.

Figure 10 has represented one embodiment of the present of invention, wherein,base plate 10 for example shown in Figure 2 ' a part be provided with someprojections 50, they are solid, rather than the sort ofhollow projection 11 shown in Fig. 2.Concerning projection 50, need to use soft more material, so that keep required height compressibility, provide a wearer's the suitable down scope of paces pressure, allow projection bulging and recovery simultaneously.

Figure 11 has represented an alternative embodiment of the invention, and wherein, a part that is similar to base plate shown in Figure 2 is provided with someupright projections 51, and they are hollow, but its cross section is rectangle basically.But these all changes of different design parameters are so that reach maximum performance.These variablees, such as: the elasticity of plastic material, the height of projection and shape, the distribution of projection and quantity on the unit are, variation, projection hollow or solid of various projections in its height or arrangement, and the thickness of the wall of those hollow convex columns, but these all changes, with the purpose that realizes that this is bright.Adopt the about 0.5cm of cross-sectional area²Projection, and if hollow, its wall thickness obtained gratifying result at 1-3mm.

Figure 12 has represented an alternative embodiment of the invention, and wherein, projection also not all has identical length.For the toe portion of shoes or sandals, embeddedpart 41 wherein is similar to shown in Figure 9 the sort of.As can see from Figure 12, along with projection more and more near toe, fromprojection 52 to 53, the length ofprojection 11 shortens gradually.The length of projection can change according to any suitable mode, to adapt to the geometrical condition of article of footwear inside.

Figure 13 has represented another embodiment according to a part of base plate of the present invention, wherein, be positioned on upper plate and the lower shoe flange toward each other, to increase buffer capacity.Moreover upper plate should be flexibility and preferably ventilative.

In Figure 14, represented the inside of the s heel portion 60 at the outer bottom or the middle end, there are 61, one independent large diameter cylinder type projections of recess 62 of a rectangle to embed in this recess 61 in the s heel portion.For the purpose of explaining, projection is expressed as being in the state of complete compressive deformation.As seen in FIG., compressive deformation makes projection 62 bulging, but certainly, and this has just partly filled the space between the periphery of recess 61 and four jiaos.Like this, whenever projection 62 bulging, just air is upwards discharged.

In Figure 15, represented the heel 70 of women's shoes or sandals, for the purpose of explaining, also show some cylindrical shrinkage pool 71 and triangle shrinkage pools 72 in the heel among the figure.Certainly, any other polygon shrinkage pool also may be utilized.After projection 73 and 74 inserts shrinkage pool.They will protrude out out as requested, and this is than the thickness of projection or highly shallow because of shrinkage pool.

Claims (40)

1, a kind of middle end, the end in the part, or similar thing, be used for being included in the article of footwear that has soft upper base of breathing freely, it is characterized in that having a projection at least in heel area, this projection has enough thickness (highly), make and significant compression can take place, in its appearance, follow the significant bulging distortion of generation simultaneously perpendicular to the gauge direction along its gauge direction; These distortion are because the wearer's of described shoes normal Ambulatory Activity just takes place; Therefore, in described normal Ambulatory Activity, described these distortion provide the effect of damping and ventilation simultaneously.

2, the middle end as claimed in claim 1, it is characterized in that the Shore A (Shore A) of the elastomeric material of described at least one projection of making (D-2240) hardness number is lower than 30.

3, the middle end as claimed in claim 2, it is characterized in that the Shore A (Shore A) of the elastomeric material of described at least one projection of making (D-2240) hardness number is approximately 20.

4, the middle end as claimed in claim 3,, it is further characterized in that many projections are arranged, and they are protruding upward from an area supported, and separated from one another with predetermined spacing, like this, just bulging might take place when its abundant compression.

5, the end in as claimed in claim 4,, it is further characterized in that described these projections are hollow, reducing their resistances for compression, and the bulging distortion that increases them.

6, the end in as claimed in claim 3,, it is further characterized in that, many from a softness, the projection that ventilative base plate protrudes downwards.

7, the end in as claimed in claim 6, is characterized in that, described base plate is global shape and very soft, so that after the end packs in the described article of footwear that described wearer wore in described, can be identical closely with wearer's sole profile.

8, the end in as claimed in claim 7, is characterized in that, described base plate is global shape and very soft, so that after the end packs in the described article of footwear that described wearer wore in described, can be identical closely with wearer's sole profile.

9, the middle end as claimed in claim 8, it is characterized in that described those projections separate each other with predetermined spacing, like this, when its abundant compression, just bulging might take place.

10, as claim 1,2 or 3 described in the ends, it is characterized in that, the thickness of described projection (highly) at 3mm between the 10mm.

11, as claim 4,5 or 6 described in the ends, it is characterized in that, the thickness of described projection (highly) at 3mm between the 10mm.

12, as claim 7,8 or 9 described in the ends, it is characterized in that, the thickness of described projection (highly) at 3mm between the 10mm.

13, a kind of article of footwear, comprise the solid cylindrical projection that at least one is made by the material that is very easy to compression, pack projection in the straight line peripheral notches in the described article of footwear heel in the earthing, make described projection supported, and projection is protruding upward from recess, cushion its wearer's paces by compression, while projection generation bulging, fill described straight line peripheral notches the periphery and each angle between the space, upwards discharge the air in this space thus, so that the ventilation of wearer's foot.

14, article of footwear as claimed in claim 13 is characterized in that, described at least one projection is arranged in the below of the ventilative upper base of a softness of this article of footwear.

15, article of footwear as claimed in claim 14 is characterized in that, described straight line peripheral notches is a rectangle.

16, article of footwear as claimed in claim 15 is characterized in that, described straight line peripheral notches is polygonal.

As claim 13,14 or 16 described article of footwear, it is characterized in that 17, described article of footwear comprises many less projections that are evenly distributed on basically on the heel region.

18, a kind of middle end that is suitable for being included in the article of footwear, the end, provide paces buffering and ventilative effect for the wearer in described, the end, comprise a bottom parts in described, this base plate is preferably at least along the part of the outer bottom of article of footwear and stretch, described base plate comprises buffer element, buffer element comprises many with respect to the vertical projection that protrudes of base plate plane, each described projection is made by flexible compressible plastic, described these projections are distributed on the base plate, so that for wearer's foot provides comfortable sole, and buffering wearer's paces; Described projection has such distribution, size and quantity, and the compressibility that has of plastics makes projection be deformed and is compressed significantly, each paces with the buffering wearer, described compression is accompanied by the bulging significantly of projection, described compression, bulging, and the recovery of projection shape subsequently, air is flowed effectively, for this article of footwear ventilates along base plate.

19, the end in as claimed in claim 18, is characterized in that, base plate stretches along whole outer bottom basically, thus, and for wearer's sole and heel all provides buffering and ventilative.

20, the middle end as claimed in claim 18, it is characterized in that base plate only stretches in the heel region of article of footwear.

21, the middle end as claimed in claim 18, it is characterized in that each projection has columniform substantially hollow shape.

22, the middle end as claimed in claim 18, it is characterized in that projection is protruding upward from base plate.

23, the end in as claimed in claim 18, is characterized in that, power is provided with projection protruding upward at the bottom of one, and another base plate that matches with it is provided with the projection that stretches out downwards, and these projections toward each other.

24, the middle end as claimed in claim 23, it is characterized in that, uppermost base plate porous, used for ventilation.

25, the middle end as claimed in claim 18, it is characterized in that in every side of base plate, the degree that projection protrudes about equally.

26, the end in as claimed in claim 18, is characterized in that, projection is made by carat (Kraten) plastics that pause.(Kraton, the trade mark of shell lubricant corporation).

27, a kind of article of footwear comprises an outer bottom, the middle end and upper base, it is characterized in that, the described middle end constitutes as claim 18.

28, article of footwear as claimed in claim 27, has an outer bottom that is combined to the middle end, it is characterized in that outer bottom is formed with one or several recess at the bottom of being used for holding at least a portion, provide thus a kind of thickness gratifying in the end/the outer bottom combination.

29, the end in as claimed in claim 18, is characterized in that, projection is by being selected from carat (Kraton) (trade mark), polyvinyl chloride, and Estane (Estane) (trade mark), or certain material in these series of rubber is made.

30, the middle end as claimed in claim 18, it is characterized in that at least a portion projection is interconnected by one second base plate at its end.

31, the middle end as claimed in claim 18, it is characterized in that base plate uses the plastics identical with projection to make.

32, the middle end as claimed in claim 18, it is characterized in that the bottom is made of porous materials.

33, article of footwear as claimed in claim 27 is characterized in that, also is provided with the soft end of porous at the end in covering in addition.

34, a kind of article of footwear comprises an outer bottom and a upper base; Described outer bottom is established many upright projections of being made by the resiliency compressible plastics;

Described projection is distributed on the outer bottom, so that for wearer's foot provides comfortable sole, and buffering wearer's paces;

The distribution of described projection, size and quantity, and the compressibility of plastics is such, be that they can be out of shape and be compressed significantly projection, so that each paces of buffering wearer, described compression is accompanied by the bulging significantly of projection, this compression, bulging, and the recovery of projection shape subsequently, air is flowed effectively, for this article of footwear is breathed freely along outer bottom.

35, a kind of buffer element that is used for article of footwear, the base plate that comprises a softness, this base plate has two main surfaces, wherein at least one surface bearing many projections, and these projections are suitable for being compressed simultaneously and bulging repeatedly along with the wearer's of described article of footwear normal Ambulatory Activity.

36, a kind of foot that is used for making the wearer of article of footwear element of obtaining cushioning comprises: the base plate that its shape can make the elastomeric material in the described article of footwear of packing into voluntarily make; And the separated from one another many projections that protrude from a surface of described base plate, described projection is made by flexible compressible material, and is suitable for being acted on the pressure on it and significant strain, compression taking place and bulging takes place simultaneously along with the wearer by this article of footwear; In this compression that takes place repeatedly, bulging, and the elastic recovery of the projection that takes place owing to wearer's activity subsequently, make the air that circulates in the article of footwear produce and flow.

As claim 35 or 36 described elements, it is characterized in that 37, the scope of described element is distributed in the predetermined zone of bottom of described article of footwear at least.

38, a kind of foot that is used for making article of footwear wearer insert of obtaining cushioning, described insert is suitable for being placed in the described article of footwear, and this insert comprises:

Its shape allows to make and is encased in the base plate that the elastomeric material in the described article of footwear is made voluntarily, and this base plate has a first surface; With

Spatially separated, be distributed on the first surface of described base plate and the many projections that protrude from this surface, described projection is made by compressible elastomeric material; Along with the pressure that wearer foot is acted in the above, described projection significantly strain, be compressed and bulging; These of described projection compression, bulging and elastic recovery that activity produced owing to described wearer subsequently repeatedly produces effectively the air that circulates in the described article of footwear and flows.

39, insert as claimed in claim 35 is characterized in that, described many projections do not contact each other.

40, insert as claimed in claim 35 is characterized in that, described article of footwear comprises a soft end, inside that has heel, and the scope of described base plate is distributed on the heel area at the soft end of described inside at least.

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