The specific embodiment
With reference to accompanying drawing, numeral 1 whole expression is used for the end in the footwear of article of footwear, and it comprises lower surface 2 on the bottom that is suitable for resting article of footwear and the upper surface 3 that is oppositely arranged with lower surface.
At least the aeration portion 5 with lower surface forms a plurality of passages 4 accordingly.
For example, during article of footwear in relating to use, aeration portion 5 is provided with corresponding to the metatarsal part or the anterior part at the end in the footwear.Possibly, aeration portion can also partly extend corresponding to the arch of foot.
Passage 4 is straight line preferably.In other words, the center line 4a that in footwear, extends through passage 4 on the lower surface at the end is straight line preferably.
For example, passage 4 is delimited through the convexity 6 with shock-absorbing function.And, can flow through passage 4 through the compression of walking process protrusions and the air stream of release institute pumping.Example among Fig. 3 is represented the direction of arrival 7 and departure direction 8 of air stream.
The cross part of numeral 9 expression passages 4.Particularly, aeration portion 5 comprises the grid corresponding to the passage intersected with each other 4 of relevant cross part 9.Particularly, passage 4 is intersected with each other with the angle of 90 degree through forming orthogonal grid.
Said grid through module 10 repeat limit, module 10 is included in relevant cross part 9 places at least two passages 4 intersected with each other.Preferably, limit two orthogonal settings of passage of module 10.
Example shown in the reference, module 10 also comprises the cavity 11 that is formed on cross part 9 places.
Preferably, cavity 11 is cylindricalitys, and perhaps more generally part is delimited through curved surface 12.For example, the axis alignment in the crosspoint 13 of the axis of cylindrical cavity 11 and two passages (the axis 11a of cavity 11).The term crosspoint refer to each passage 4 extend along the crosspoint of two center line 4a.
According to shown in embodiment; Protruding 6 present the cross section with octagonal periphery 14, corresponding with beeline channel 44 straight line 14a of this octagonal periphery and replace with cavity 11 4 corresponding curved side 14b that cross part 9 places between two beeline channels form.
According to shown in embodiment, the end 1, be included at least one through hole 15 that extends between lower surface 2 and the upper surface 3 at the end 1 in the footwear in the footwear.
Particularly, through hole 15 is formed on cross part 13 places of two passages 4.
With regard to module 10, it comprises the through hole 15 at cross part 13 places that are arranged on two passages 4 that constitute same module at least.
With regard to cylindrical cavity 11, through hole 15 is formed on the axis 11a of cavity.
The periphery at the end 1 in the numeral 16 expression footwear, passage 4 leads in the periphery.Corresponding to periphery 16, can projection arrangements be become to have and the protruding different shape that is arranged on aeration portion central authorities the shape that for example enlarges.
Other parts at the end can have multiple structure in the footwear.According to shown in example, the end, can comprise and is preferably shaped to arc and is positioned at least one wing 17 of the mid portion at the bottom of the footwear in the footwear.
Advantageously, the thickness that extends of the wing 17 preferably has the size that in the footwear middle body at the end rises to arch of foot part.
In other words, aeration portion 5 partly is provided with corresponding to the metatarsal at the end in the footwear, and the wing 17 partly is provided with corresponding to the arch of foot at the end in the identical footwear.
In an example shown, be provided with two wings 17.The sidepiece 19 that the arch of foot corresponding to the end in the identical footwear partly is provided with is delimited and covered to the wing 17 for the center-aisle 18 of end periphery 16 in the preferred extend through footwear.
In example shown in the drawings, also the rear portion corresponding to the end in the footwear forms a plurality of additional channels 20.For example, the additional channel 20 at rear portion can be similar with the passage 4 of aeration portion.
Additional channel 20 also leads in the periphery that passes through numeral 16 expressions at the end 1 in the footwear.Equally, at the rear portion, can the arrangements corresponding to the convexity of periphery 16 be become different, for example the shape of expansion with the shape of the passage that is arranged on rear portion central authorities.
Preferably, only center-aisle 18 extends beyond periphery 16.
In use, the pump action in the walking process produces along passage 4 and the stream of the arrival air in through hole 15 and leaves air stream.Because little Reynolds number, are laminar flows along the stream of beeline channel 4.From the air of passage 4 moment across cavity 11, the place, crosspoint between beeline channel 4 and cavity 11 the train of thought expansion can occur and separate with whirlpool.These whirlpools keep being confined in the cavity 11, improve the heat exchange with all the other fluids.
In other words, passage 4 is designed to comprise eddy generator or turbulent flow generator (promptly can through advantageously it being transformed into the element that turbulent flow encourages the boundary layer from laminar flow).
Particularly, eddy generator limits through the structure of passage 4.In other words, it is designed to produce and promote turbulent flow through same channels is shaped with the mode of in its geometry, suitably introducing the from then on initial split point in whirlpool zone.
In these zones, fluid motion be unordered and with surrounding fluid generation particle exchange, this has guaranteed to remove heat better through convection current, therefore, final analysis has improved the ventilation of the pin at the end in the footwear.
Hydrodynamic analogy has proved this phenomenon.Fig. 4 and Fig. 5 are illustrated in the end in the known footwear and mobile in the spaces (passage 4, cavity 11 and through hole 15) under the situation at the end in footwear according to the present invention.The higher zone of shallow shadow representation speed among these figure.Spaces between the convexity 6 that the volume of describing is occupied by air.For the sake of clarity, only consider the inflow of air from four passages that lead to cavity.Identical to the state of incoming flow and when therefore Reynolds number was identical, the innovative construction of passage guaranteed that whirlpool separates, and has therefore guaranteed heat extraction better.And such whirlpool state increases the three dimensions that flows, and it is current and improve the perspire ability along through hole therefore to be beneficial to a large amount of air.Said simulation can be pointed out; For example be approximately at 80 o'clock getting into Reynolds number, under the situation of known configuration, the flow velocity of the air that leaves from through hole and the ratio that gets between the flow velocity of air of a passage equal 0.043; And for innovative construction, said ratio rises to 0.22.
The present invention can be to implement with the different form of describing and explain.
Particularly, present invention relates in general to a kind of interior end of footwear that is used for article of footwear, wherein passage 4 advantageously comprises at least one eddy generator.Advantageously, eddy generator is arranged at least two cross part 9 places that are preferably the passage 4 of straight line.
Therefore, module 10 comprises the said eddy generator that is provided with corresponding to the cross part between the passage 4 of two preferred straight lines that form equal modules 9.
Advantageously, eddy generator is provided with corresponding at least one through hole 15 at the end in the footwear, and extend between lower surface 2 and upper surface 3 in said hole.
Preferably, the eddy generator that for example limits through the structure that provides same channels has been avoided the use of optional feature.Illustrated and described the structure of the passage that is suitable for forming said eddy generator.
Generally, the cross part 9 between at least two passages can comprise on the surface that limits at least one empty stalling point 12 partly delimiting.Particularly, the cross part 9 between at least two passages 4 comprises the cavity of delimiting through curved surface 12 parts 11.
Preferably, cavity 11 is about axis of symmetry 11a symmetry and be positioned on the point 13 of cross part of two passages.The example of the cylindrical cavity shown in the accompanying drawing is a kind of embodiment of symmetrical cavity, and wherein, axis 11a is the axis of symmetry of cavity.
Generally, said at least two cross aisles 4 are suitable for confirming the laminar motion of air stream, and cavity 11 is suitable for confirming the turbulent motion of air stream.
Explanation of the present invention also is applicable to the module 10 through the lattice of channels that repeats to constitute lower surface 2.Therefore, point out the eddy generator that module 10 is included in 9 places, crosspoint at least two beeline channels 4 intersected with each other and is provided with corresponding to cross part 9 as top.Particularly, module 9 comprises the cavity 11 that is provided with and partly delimits through the surface 12 that limits at least one empty stalling point corresponding to cross part 9.
Except recited above, module 10 comprises that at least two passages 4 and the cavity 11 that are suitable for definite air stream are suitable for the turbulent motion that definite air flows.The cavity 11 of module 10 is preferably about axis of symmetry 11a symmetry and be positioned on the crosspoint 13 of two passages.
Possibly, cross part 9 can limit through plural passage 4.
Therefore, the present invention has overcome problem recited above.The innovative construction on surface has been improved the ventilation of circulation of air and pin through keeping protruding shock-absorbing function under in the footwear.Through at least one eddy generator of the fluid motion that is easier to reach turbulence state is provided, notice has been transferred to the formation of passage from the formation of convexity.And the existence that is arranged at least one through hole in the turbulent region has improved exchange and the heat abstraction through convection current between the upper and lower sides at the ends in the footwear.
Advantageously, needn't introduce add ons.In fact, have been found that the structure through passage limits the eddy generator advantageous particularly.
At the cross part of the passage of at least two preferred straight lines eddy generator is set and makes and can form part favourable (passage) and the part (cavity and through hole) favourable turbulent flow to laminar flow, developed two kinds of mobile advantages thus and realized allowing air in passage, transmit and quicken, mixing and be transferred to the synergy in the through hole in cavity subsequently.
The cavity that setting is delimited on the surface that limits at least one empty stalling point is particularly suitable for being used in the footwear of not expecting optional feature and can automatically make with limited cost at the end.
Be used for delimiting cavity, particularly symmetry and preferably the curved shape on the surface of the cavity of cylindricality make it possible at velocity amplitude with respect to the whirlpool zone of all optimizing stream aspect the configuration of through hole.
And, because passage 4 leads to the periphery 16 at the end 1 in the footwear, improved two lower surfaces at the ends in the footwear and the air between the upper surface and flowed.
At last, further modification (not shown) well known by persons skilled in the art can be set.
For example, passage 4 can have different structures or comprise at least one straight line portion.In other words, the center line 4a that in footwear, extends through passage 4 on the lower surface at the end can comprise at least one straight line portion.If passage only partly is a straight line, then cross part 9 preferred straight line portion settings corresponding to two passages.
With regard to module, at least one through hole 15 that its 13 places, crosspoint that can be included in two passages 4 that constitute equal modules form.
And, can be set at least one wing 17 that at least one center-aisle 18 is delimited.