CN1132054A

CN1132054A - Shoes

Info

Publication number: CN1132054A
Application number: CN 95121812
Authority: CN
Inventors: 山田忠利; 森本光彦; 新仓敬之
Original assignee: Bridgestone Sports Co Ltd
Current assignee: Bridgestone Sports Co Ltd
Priority date: 1994-12-29
Filing date: 1995-12-29
Publication date: 1996-10-02
Anticipated expiration: 2015-12-29
Also published as: JP3001789B2; JPH08182505A; CN1096243C

Abstract

The invention provides shoes to decrease the troubles with the feet and to allow smooth footwork by improving the impact absorbability, cushion property, stability and braking property of the treading part of a shoe sole by the shape of the treading part. The base of the treading part of shoes has a recessed part in the sectional shape of the treading part of the shoe sole at the section nearly perpendicular to the base of the shoe sole and along the transverse direction of the shoes. The recessed part of such shoes acts as a deformation element to make the treading part easily deformable. The excellent shock absorbability and cushion property are thereby obtained. In addition, load is concentrated at the bases of ground contact parts existing in both side parts of the base of the shoe sole, by which the stability and braking property of the treading part are improved.

Description

Footwear

The present invention relates to a kind of footwear that part has novel shape of trampling of bottom, relate to a kind of its more precisely and trample the footwear that part has good shock absorption, resiliency, stability and braking and is applicable to motion.

When the people wore the footwear walking or moves, the partial action of trampling of sole had sizable load and impact.What is called is trampled part, is exactly the people in the walking or the process of running, step on that part of of pedaling before the pin built on stilts.For the pin bone structure, trample the first half (promptly with mesopodium bone be center that part of) of part, shown in Figure 10 (A)～(C) corresponding to part between the heel of pin and the finger.

The load (only considering body weight) of being born on the part of trampling of sole is assumed to be 1 under the situation of quiet standing position gesture if take the shoe user, then will increase to 1.3 in walking, will reach 3 during jump.When human body when move significantly in front, rear, left and right, trample part and will act on a very big load and an impact.Therefore, directly reach on people's pin, will exert an influence pin if act on the impact of trampling part.

Therefore, absorbing and reduce to act on sole and trample impact partly, is an important indicator when designing footwear.Traditionally, be to realize shock-absorbing and damping by selecting the making material of trampling part.

Yet, ignored mostly at present from change that sole tramples that the shape of part sets about realizing absorbing and (or) abirritation is in the impact of trampling part.That is to say that in traditional footwear, the whole bottom surface of trampling part is flat, shown in Figure 11 (A), or make the arcuate surface of core summary, shown in Figure 11 (B) to lower convexity.And not to shape adopt special design realize shock-absorbing and (or) damping.

Because Figure 11 (A) and (B) shown in trampling of this traditional footwear body partly do not have deformable member (shape helps the element of distortion), so they almost can not be out of shape, shock-absorbing performance is very poor.For addressing this problem, once tried to utilize change the making material of trampling part realize shock-absorbing and (or) damping.Yet this can not provide gratifying shock absorption and resiliency.Therefore,, act on the impact of trampling on the part and will directly reach people's pin, frequently it is damaged when people dress has the traditionally shaped footwear of trampling part when carrying out strenuous exercise.

Shown in Figure 11 (B) be shaped as central part to lower convexity trample the part in, the both lateral sides of its bottom surface does not all contact with ground, thereby less stable.In addition, when slowing down with big toe in the walking of people at left and right directions or during stop motion, this tramples part can only be under the people tilts the situation of sole significantly and the ground interlock.As mentioned above, the trample part of shape shown in Figure 11 (B) do not have good stable and braking.This might cause foot to sprain, and hinders the stationarity of footwork.

The present invention has carried out inquiring into research to above-mentioned situation.The purpose of invention is to provide a kind of sole to trample the footwear that part has good shock absorption, resiliency, stability and braking, and it can reduce the problem that foot may run into, and guarantees the stationarity of footwork simultaneously.

For achieving the above object, the inventor has carried out conscientious research to the structure of sole.Found that, trample the placed in the middle position of part bottom surface on its width when sole and form a depression, and when part was contacted to earth in the both lateral sides setting of depression, this depression just can be used as deformable member, thereby increased the deformability of trampling part.Good shock absorption and resiliency so just is provided.The inventor also finds, because load accumulates on the part of contacting to earth that is positioned at sole bottom surface both lateral sides, and these parts of contacting to earth contact with ground reliably, therefore, the stability and the braking of trampling part are improved, especially the ability of it and ground interlock increases, thereby the braking ability (braking effect on the left and right directions) on the left and right directions footwork is improved.The present invention finishes according to these results of study.

Therefore, the invention provides a kind of footwear, it comprises that one has the sole of the part of trampling, and wherein, tramples part position placed in the middle on the sole width and is provided with a depression.

The present invention is described below with reference to accompanying drawings in more detail, wherein,

Fig. 1 is the schematic bottom view of an example of sole of the present invention;

Fig. 2 is the profile that sole of the present invention is trampled part, and this section is on the width of sole and be basically perpendicular to the sole face;

Fig. 3 is the ground plan of an example of sole of the present invention;

Fig. 4 is the ground plan of an example of sole of the present invention;

Fig. 5 is the profile that sole of the present invention is trampled part, and this section is on the width of sole and be basically perpendicular to the sole face;

Fig. 6 is the ground plan of an example of sole of the present invention;

Fig. 7 is the profile that sole of the present invention is trampled part, and this section is on the width of sole and be basically perpendicular to the sole face;

Fig. 8 is the ground plan of an example of sole of the present invention;

Fig. 9 is the ground plan of an example of the sole of the embodiment of the invention;

Figure 10 (A) is the skeleton figure that people's pin is trampled part;

Figure 10 (B) is the bottom diagram of people's pin, shows it and tramples part;

Figure 10 (C) is the ground plan of sole, shows it and tramples part;

Figure 11 (A) and (B) respectively be the profile of conventional soles, these sections are all on the width of sole and be basically perpendicular to the sole face.

Fig. 1 is the schematic bottom view of sole of the present invention.Fig. 2 tramples the profile that part is cut open along the plane that is basically perpendicular to its bottom surface on the width of sole.Footwear of the present invention are provided with a depression 4 at the position placed in the middle of trampling on part 2 widths, shown in the profile of Fig. 2.In Fig. 2, what numeral 6 was represented is the part of contacting to earth that is positioned at depression 4 both sides.Each part 6 of contacting to earth has flat bottom surface.What numeral 8 was represented is the top that is bonded in the footwear of sole, numeral 10 expression ground.

The shape of depression 4 as long as can realize purpose of the present invention, can adopt Any shape, but preferably be arch on the width of sole, as shown in Figure 2 without limits.Have under the situation of this shape in depression 4, trample part 2 and be easy to distortion, thereby good shock absorption and resiliency can be provided.In addition, the part of contacting to earth 6 firmly supports one in the two thin parts 12 (trampling the part that has depression 4 in the part 2) of contacting to earth between the part 6, that is, the part of contacting to earth 6 firmly supports arcuate part.Therefore, when certain load acts on when trampling on the part 2, thin part 12 distortion make its part bottom surface contact with ground.Therefore, trample part 2 and have advantages of excellent stability and braking ability.

The cross section of trampling all positions between part 2 front and back ends need not the profile that all is shown in Figure 2, and is just passable as long as the most of zone on its fore-and-aft direction is formed with depression 4.For example, as shown in Figure 3, trampling part 2 can be flat in front and rear, and establishes depression 4 between front end and the rear end.

Need not depression made and make that the both sides of all positions all have the smooth part 6 of contacting to earth in bottom surface on its fore-and-aft direction, just passable as long as the both sides in the most of zone of depression 4 on its fore-and-aft direction have the part of contacting to earth 6.For example, as shown in Figure 4, depression 4 can be identical with the width that trample part 2 near the width of trampling part 2 rear ends, and the part 6 of contacting to earth can be formed at the front side of trampling part 2.

The dark a in 4 the end (the innermost degree of depth) depends on the material of trampling part 2 though cave in, and generally all is equal to or less than 10mm in any position of trampling on part 2 fore-and-aft directions, is more preferably and is equal to or less than 8mm, preferably between 6～2mm.If the dark a in the end surpasses 10mm, the deflection of trampling part 2 is excessive, thereby makes foot's sensation variation of wearing footwear.And, in some cases, make shock absorption, resiliency, stability and braking can not get improving.The dark a in the end constantly also can change, and a kind of situation of the latter is, depression 4 has depth capacity a in the rear end of trampling part 2, and the degree of depth is forward and diminish along with the position.

Depression 4 deepest part (part) with the dark a in the end trample on part 2 fore-and-aft directions the position without limits.The deepest part can be located at tramples the horizontal center of part 2, and this part can be moved from the center to hallux toe or little toe direction.Consider from the bone structure aspect of foot, preferably the deepest part is located at deflection hallux toe place.On the other hand, be the feasibility that realizes making, preferably the deepest part be located at the position laterally placed in the middle of sole.

Depression 4 width b constantly also can change.Be positioned in the part 6 of contacting to earth under the situation of depression 4 both sides, the two width c that contact to earth part 6 can be the same or different.Consider that from pin bone structure aspect hallux toe one side is contacted to earth the width c of part 6 more preferably greater than little toe one side.But consider from the productivity ratio aspect of footwear, preferably make two the contact to earth width of part 6 identical.

Be positioned in the part 6 of contacting to earth under the situation of depression 4 both sides, the width b of depression 4 preferably tramples 40～80% o'clock of part 2 width b+c+c, when width b surpass beam overall 80% the time, the width c of part 6 of will causing contacting to earth is too small, thereby can make stability and braking can not get improving in some cases, and the contact to earth wearing and tearing of part 6 of quickening.And when width b less than beam overall 40% the time, the width c of the part of contacting to earth 6 is excessive, thereby can make shock absorption and resiliency can not get improving in some cases.

Sole of the present invention can be a single layer structure as shown in Figure 2, and promptly whole sole is made by parts, also can be double-decker as shown in Figure 5, and promptly the outer surface of sole mid portion 18 covers one deck outer bottom 20, can also adopt other composite constructions.No matter adopt which kind of structure, to be formed with depression 4 on the width of sole 14 just passable as long as trample the bottom surface of part 2.

In employing has during the double-deck shoe sole production of outer bottom footwear of the present invention, can in finished product, form depression 4 like this, promptly the while forms depression and they is sticked at together on the interior end and outer bottom, or only forms depression in the interior end and outer bottom, then they is sticked at together.

Although to the making material of trampling part 2 without limits, must preferentially select the material that can meet the following conditions for use.

(a) when footwear are not in user mode and do not have load to act on the footwear, depression 4 keeps its intrinsic shape fully.

(b) when the wearer take on quiet standing position gesture and the sole effect have one caused by wearer's body weight specific loading the time, the bottom surface kiss the earth of the part 6 of contacting to earth is only arranged, the shape of depression 4 is almost constant.

(c) when the user acts on 1.3 times of specific loadings because of walking on sole 2, thin part 12 slightly deformed, the lateral sides of its bottom surface contacts with ground, so that the contact area on sole 2 and ground increases.

(d) when the user acts on 3 times of specific loadings because of jump on sole 2, thin part 12 further be out of shape, its bottom surface except that with the corresponding zone, deepest part of depression 4, contact with ground and flatten fully.

Trampling the making material of part 2 can select from such one group of material, and it comprises the rubber such as natural rubber (NR), butadiene rubber (BR), the stupid rubber of fourth (SBR), EP rubbers (EPR), isoprene rubber (IR), acrylonitrile-butadiene rubber (NBR) and polyurethane foam rubber (PU); And the synthetic resin such as non-rigid pvc (PVC) and EVAc (EVA).But the selection of material of trampling part 2 is not limited in this.

As mentioned above, footwear of the present invention have a depression 4 on the bottom surface of trampling part 2, and can have following any structure.

(1) bottom surface of the part 6 of contacting to earth that is positioned at depression 4 both sides is shaped on the decorative pattern that shows slightly uneven.

Because load mainly acts on the bottom surface of the part 6 of contacting to earth on the present invention's the footwear, therefore, form the decorative pattern that slightly rises and falls in the above and help to improve the stability and the braking of trampling part 2.

(2) be formed at the depression of trampling on the part bottom surface and trample position placed in the middle partly along being located on the length direction of sole.

For example, in this structure, as shown in Figure 6, be recessed on the horizontal section of sole and the longitudinal profile and all be middle concave, thereby make the bottom of trampling part 2 form an oval-shaped depression 22.This structure more can be improved shock absorption and resiliency, and depression preferably also is arch along the section longitudinally of footwear.

(3) trample the hardness difference of the each several part of part 2.

Utilize this structure, trample the characteristic of part 2 and can optimize according to the purposes of footwear.For example, the part 6 of contacting to earth is being made cure process in case after it was out of shape easily, the ability that its supports thin part 12 was improved, thereby has further improved the stability and the braking of trampling part 2.On the contrary, the part 6 of contacting to earth is done after softening the processing shock absorption and the resiliency of trampling part 2 are increased.Have the double-deck sole of interior outer bottom if adopt, the difference of end each several part hardness realizes this structure in then can utilizing.

(4) landfill one vibration absorptive material or padded coaming 24 in the thin part 12, as shown in Figure 7.

Utilize this structure, can improve shock absorption and the resiliency of trampling part 2.In this case, vibration absorptive material or padded coaming 24 can be made by above-mentioned foamed material or the analog of trampling the material of part 2 as manufacturing.A kind of capsule that gelinite is housed can be used as padded coaming.The manufactured materials of these seed capsules can be selected for use with trampling the manufactured materials materials similar (rubber, synthetic resin) of part 2 from those, or is made by a kind of plastics such as polyamide.This gelinite can be siloxanes, polyvinyl alcohol or acrylamide.

(5) the contact to earth bottom surface of part 6 is formed with the groove 26 of crooked usefulness, and it extends on the width of sole, as shown in Figure 8.

Utilize this structure, trampling part 2 can be crooked at an easy rate, thereby has improved the deformability of trampling part 2, and its shock absorption and resiliency are improved.The size of this curved slot 26, shape, position and quantity can be decided according to the purposes of footwear.

Describe the present invention with reference to an embodiment below, but this should not be counted as limitation of the present invention.Fig. 9 is the ground plan of a kind of sole part of the embodiment of the invention.In Fig. 9, what numeral 30 was represented is sole, and what numeral 32 was represented is the top of footwear.

Many curves on sole 30 bottom surfaces among Fig. 9 are contours of different depth.Contour e represents the 0mm degree of depth, and line f is that 1mm is dark, and line g is that 2mm is dark, and line h is that 3mm is dark.Therefore, the footwear of present embodiment has arch depression 34, and it is being 1～3mm along the horizontal direction of sole 30 and perpendicular to the change in depth scope on the section of bottom surface, and has the smooth part 36 of contacting to earth in bottom surface in the both sides of depression 34.

In the present embodiment, depth capacity on depression 34 stampeding section partial width direction extreme direction before the footwear successively decreases, depression 34 deepest part is positioned at the central authorities on the partial width direction of stampeding section, thereby two width that contact to earth part 36 that are positioned at depression 34 both sides are equal to each other.Depression 34 had not both extended to the front end of trampling part, did not extend to its rear end yet, and the rear end of trampling part does not form the part of contacting to earth.

In footwear of the present invention, the deformability that its sole is trampled part improves, thereby shock absorption and resiliency are preferable.And because load accumulates on the bottom surface of the part of contacting to earth that is positioned at the depression both sides, the stability and the braking of trampling part improve.Especially, trample the part more good to the braking of left and right directions footwork.Therefore, in footwear of the present invention, the impact that acts on trampling partly is minimized, thereby has reduced the influence to foot, has guaranteed the footwork stationarity.

Claims

1. footwear, it comprises that one has the sole of the part of trampling, the described nearly centre of part on described sole width of trampling is provided with a depression.

2. footwear as claimed in claim 1 is characterized in that, the described part of trampling is provided with the part of contacting to earth in the both lateral sides of described depression.

3. footwear as claimed in claim 1 or 2 is characterized in that, are arch on the described width that is recessed in described sole.

4. as claim 1,2 or 3 described footwear, it is characterized in that the end of described depression is equal to or less than 10mm deeply.