JP2011177446A - Shoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a feet from becoming sweaty by changing air in a shoe while walking. <P>SOLUTION: As the center of gravity of a user moves while walking, part of an elastic air chamber 3 is compressed and deformed in order partially from a heel side end part 3b toward a toe side end part 3a. Thus, humid air flowing from a shoe inner space B to stay in the elastic air chamber 3 is pushed and fed from the heel side end part 3b toward the toe side end part 3a to then go through a first ventilation passage 4a to be discharged from a first ventilation port 5a out of the shoe. Following such partial compression and deformation, part of the elastic air chamber 3 is expanded and deformed in order partially from the heel side end part 3b toward the toe side end part 3a. Thus, dry air outside the shoe is taken through a second ventilation port 5b and a second ventilation passage 4b from the heel side end part 3b into the elastic air chamber 3 to flow out to the shoe inner space B. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a shoe in which a ventilating structure with outside air is provided on a shoe bottom portion in order to reduce foot swelling caused by perspiration during use of the shoe.
More specifically, the present invention relates to a device capable of releasing moisture and heat generated inside a shoe to the outside of the shoe and taking in dry air into the shoe from the outside of the shoe.

Conventionally, as a shoe of this type, in a shoe in which an outer base is in contact with a bag cover made up of a cover and an insole, a plurality of through holes are provided in a stepping portion of the insole, and a plurality of through holes are provided on a lower surface thereof. A mesh sheet and a waterproof breathable sheet are sequentially inserted into the storage frame of the shoe sole vent member that is provided with a through hole. By molding, moisture and hot air inside the shoe is released from the shoe sole to the outside, fresh air is taken in from the shoe sole, and water intrusion from the shoe sole is prevented (for example, patent document) 1).
In addition, a ventilation path branched into multiple parts is formed by a trunk groove and a branch groove communicating with the inside of the shoe, and this ventilation path is formed inside the heel of the shoe sole, and the volume changes elastically depending on the weight of the shoe. By connecting the air chamber to the outside of the shoe sole from the side of the shoe sole to the outside through a ventilation path, the volume of the air chamber changes depending on the weight of the foot accompanying walking, etc. Some air is exhausted by contraction of the air chamber, and inhaled by expansion of the air chamber to ventilate the air in the shoe in a breathing manner (for example, see Patent Document 2).

JP 2000-166606 A JP 2002-10801 A

However, in such a conventional shoe, in the case of Patent Document 1, since the waterproof breathable sheet is arranged over a wide range in the stepping portion of the shoe sole, the waterproof breathable sheet is bent due to walking for a long time. There is a possibility that peeling or cracking may occur due to the deformation, and there is a possibility that the water intrusion prevention function cannot be maintained for a long period of time.
In addition, in the case of Patent Document 2, a plurality of branched ventilation paths merge into the air chamber and communicate with the outside of the shoe sole from one ventilation path. There is a problem in that air from the outside flowing in from the ventilation path collides in the trunk groove or branch groove of the ventilation path, and the air does not flow smoothly and ventilation may not be performed smoothly.

  The present invention is directed to addressing such problems, and reduces foot stuffiness by changing the air in the shoes as the user walks, and allows a large amount of air to be taken in and out without giving the user a sense of incongruity. The purpose is to easily incorporate an elastic air chamber.

  In order to achieve such an object, the present invention is provided along the insole between the insole to the insole, and an elastic air chamber whose volume is elastically changed in the thickness direction of the insole, The first air passage provided to connect to the toe side end of the elastic air chamber, the second air passage provided to connect to the heel side end of the elastic air chamber, and the first air passage are shoes. A first vent provided so as to communicate with the outside and a second vent provided so that the second vent path communicates with the outside of the shoe, wherein the elastic air chamber communicates with the shoe interior space, and walks As the body weight moves, a part of the elastic air chamber partially compresses and deforms sequentially from the heel side end to the toe side end and follows the partial compression deformation. A part of the air chamber is arranged so as to partially expand and deform sequentially from the heel side end part to the toe side end part. Characterized in that was.

  In addition to the above-described features, an intermediate sheet is laminated between the insole and the outsole, and a space portion of the elastic chamber is formed in the intermediate sheet, and the thickness direction of the insole is formed in the space portion. A sheet-like elastic body that is elastically compressible / expandable can be accommodated.

  Further, in addition to the above-described features, a space portion of the elastic air chamber, the first air passage, and the second air passage are respectively formed in the intermediate sheet laminated between the insole and the main bottom, The first ventilation path is connected to the toe side end formed at one end of the space, and the second ventilation path is connected to the heel side end formed at the other end of the space. Features.

In the present invention having the above-described features, a part of the elastic air chamber is partially compressed and deformed sequentially from the heel side end part to the toe side end part in accordance with the weight shift during walking. Thus, the air containing moisture accumulated in the elastic chamber is pushed from the heel side end toward the toe side end, and is discharged from the first vent through the first vent to the outside of the shoe. Following the partial compression deformation, a part of the elastic air chamber partially expands and deforms sequentially from the heel side end to the toe side end, so that the dry air outside the shoe In addition, since the air passes through the second air passage sequentially and is sucked into the elastic air chamber from the heel side end portion and flows into the shoe interior space, the air in the shoe can be replaced with walking to reduce the foot stuffiness.
As a result, it is not necessary to dispose the waterproof breathable sheet over the wide range of the sole, unlike the conventional one that prevents water intrusion from the through hole of the shoe sole by the waterproof vented sheet, and for a long period of time. Can be used without worrying about water intrusion.
Also, compared to the conventional one in which a plurality of branched ventilation paths join the air chamber and communicate with the outside of the shoe sole from one air passage, air containing moisture released from the shoe flows in from the outside Since air passes through separate ventilation paths and vents, it can be smoothly ventilated without colliding with each other.

Further, an intermediate sheet is laminated between the insole and the main bottom, and a space portion of the elastic air chamber is formed in the intermediate sheet, and the space is elastically compressed in the thickness direction of the insole in the space portion. When a sheet-like elastic body that can be inflated and deformed is accommodated, for example, a hollow body made of an elastic film such as rubber may not be deformed so that the other part is inflated and deformed by the amount of compression deformation. It is not stable deformation, it can be elastically deformed stably over a long period of time, and an elastic air chamber can be formed over a wide area of the shoe sole, so a large amount of air can be taken in and out without giving the user a sense of incongruity can do.
As a result, foot stuffiness can be remarkably reduced and can be kept hygienic for a long time.

Further, a space portion of the elastic air chamber, the first air passage, and the second air passage are formed in an intermediate sheet laminated between the insole and the main bottom, and formed at one end of the space portion. When the first air passage is connected to the toe side end portion and the second air passage is connected to the heel side end portion formed at the other end of the space portion, By simply sandwiching the intermediate sheet between the bottoms, the elastic air chamber and the first air passage and the second air passage are integrally arranged, so that the elastic air chamber can be easily incorporated.
As a result, the manufacturing time can be shortened and the manufacturing cost can be reduced.

1 is a perspective view showing an overall configuration of a shoe according to an embodiment of the present invention. It is a disassembled perspective view of a shoe sole. It is explanatory drawing which shows the locus | trajectory of the gravity center movement at the time of a walk. It is explanatory drawing which shows the deformation | transformation state of the elastic air chamber accompanying the weight shift at the time of a walk, (a) shows the compression order, (b) shows the expansion order. It is a perspective view which shows the whole structure of the shoe which concerns on other embodiment of this invention. It is a disassembled perspective view of a shoe sole. It is explanatory drawing which shows the deformation | transformation state of the elastic air chamber accompanying the weight shift at the time of a walk, (a) shows the compression order, (b) shows the expansion order.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
A shoe A according to an embodiment of the present invention is of a well-known form in which a shoe sole S on which an insole 1 and a sole 2 are stacked and an upper U are fixed as shown in FIGS. In the sole S, a ventilation structure is incorporated.
As shown in FIGS. 1 and 5, this ventilation structure includes an elastic air chamber 3 provided along the midsole 1 between the midsole 1 and the main bottom 2, and a toe side end portion of the elastic air chamber 3. The first air passage 4a provided so as to be connected to 3a, the second air passage 4b provided so as to be connected to the heel side end portion 3b of the elastic air chamber 3, and the first air passage 4a communicate with the outside of the shoe. The first vent 5a and the second vent 4b provided in the shoe are provided with a second vent 5b provided to communicate with the outside of the shoe.

The insole 1 is an insole formed in a sheet shape having the same shape as the sole with a material that can be elastically bent and deformed with walking, and is a sheet having air permeability throughout the thickness direction used? Alternatively, a seat having a large number of small holes 1a is used at least in the stepped portion where the weight is applied during walking, so that the shoe inner space B into which the user's feet are inserted and the elastic air chamber 3 described later are always in communication. To form.
Furthermore, as an example of the insole 1, it is preferable that the insole 1 is fixed to the upper U by fishing or the like.
As another example, the insole 1 can be arranged as an insole that can be attached to and detached from the upper U and the shoe sole S.

  The sole 2 is made of a material that can be bent and deformed elastically with walking, such as leather, rubber, or synthetic resin, and is formed into a sole-like sheet that is approximately the same size as or slightly larger than the insole 1. The heel portion 6 is fixed to the heel side by, for example, an adhesive or integrally formed on the heel side thereof.

The elastic air chamber 3 is disposed on a stepping portion where the weight is applied during walking on a plane substantially parallel to the intermediate bottom 1 between the insole 1 and the bottom 2, and the weight from the heel side to the toe side during walking Along with the movement, the volume is changed by elastically compressing and expanding in the thickness direction of the insole 1.
As a specific example of the elastic chamber 3, as shown in FIGS. 2 and 6, a layer is formed between the insole 1 and the outsole 2, and at least in the stepping part facing the sole of this layer, at least the Ryukyu And it arrange | positions so that a small ball may be covered.
As an example of a method for forming such an elastic air chamber 3, as shown in FIGS. 2 and 6, it is formed between the insole 1 and the outsole 2 with a material that can be elastically bent and deformed with walking. The intermediate sheet 3c is laminated, and a space portion 3d is opened in the intermediate sheet 3c. In the space portion 3d, a sheet-like elastic material that can be elastically compressed and expanded in the thickness direction of the midsole 1 is provided. It is preferable that the body 3e is accommodated so that a pumping action can be obtained by being pressurized with the body weight during walking and releasing the pressure by the body weight.
As the elastic body 3e, for example, a net knitted from a synthetic resin fiber having elasticity or an open cell type foam is used.
Although not shown in the drawings as another example, it is possible to obtain a pump action by arranging a hollow body made of an elastic film such as rubber instead of the space 3d and the elastic body 3e. It is.
Furthermore, it is also possible to form the elastic air chamber 3 integrally with the insole 1 so that the elastic air chamber 3 is directly opposed to the shoe inner space B so as to be in continuous communication.

The first air passage 4a and the second air passage 4b are exhaust and intake passages that are formed in a curved shape or a straight shape along the insole 1 from the insole 1 to the outsole 2. Two systems are arranged on the bottom S on the opposite side to the upper side facing the arch.
As an example of the method of forming the first air passage 4a and the second air passage 4b, as shown in FIGS. 2 and 6, in the intermediate sheet 3c laminated between the insole 1 and the main bottom 2, an opening is provided in the intermediate sheet 3c. By opening two through holes toward the toe side end 3a and the heel side end 3b of the space 3d, or by forming a concave groove, the toe side end 3a and the heel side end 3b It is preferably formed so as to communicate with each other in an airtight manner.
Further, although not shown as another example, it is also possible to pipe a tube body such as a tube in place of such a through hole or a concave groove.

For example, the first vent 5a and the second vent 5b are respectively opened on the part of the bottom 2 facing the arch, the side of the heel 6 or the bottom of the bottom 2 and the heel 6 and the like. Although air is allowed to pass through the air passage 4a and the second air passage 4b, the air passage 4a and the second air passage 4b are formed in a structure that prevents intrusion of water or dust.
As specific examples of the first vent 5a and the second vent 5b, as shown in FIGS. 2 and 6, the first vent 4a and the second vent 4b, the first vent 5a and the second vent 5b are used. For example, a sheet-like or film-like waterproof breathable member 7 is attached between the first vent passage 4a and the second vent passage 4b, or the first vent hole 5a and the second vent vent as necessary. It is preferable to dispose a dustproof member 8 such as a mesh plate or a perforated plate inside the mouth 5b.
Although not shown in the drawings as another example, instead of the waterproof breathable member 7 and the dustproof member 8, a waterproof breathable material that achieves both waterproofness and moisture permeability is used as the first vent 5 a and the second vent. It is also possible to arrange in the mouth 5b.

  By the way, when a person walks, as shown in FIG. 3, first, landing from the heel side of the shoe sole S, the center of gravity hung on the heel moves along the outside of the arch, and from the small Ryukyu side to the Ryukyu side. It is known that the trajectory of the center of gravity moves as shown by the wavy line in FIG. 3 due to the change of the foot pressure part to the shoe sole at the time of walking. .

Therefore, the elastic air chamber 3 is indicated by reference numerals 31 → 32 → 33 → 34 in FIG. 4 (a), for example, by the movement of the user's body weight from the landing of the heel to the toes in order with walking. In this way, a part of the elastic chamber 3 is arranged so as to partially move while being sequentially compressed and deformed from the heel side end portion 3b toward the toe side end portion 3a.
Further, following these partial compressive deformations, by shifting the weight until the heel is separated from the ground and then to the toes in order, for example, as indicated by reference numerals 31 → 32 → 33 → 34 in FIG. Further, a part of the elastic air chamber 3 is partially moved while sequentially expanding and deforming from the heel side end portion 3b to the toe side end portion 3a, so that the space volume of the elastic air chamber 3 is restored. Yes.

According to such a shoe A according to the embodiment of the present invention, part of the elastic air chamber 3 is partially separated from the heel side end 3b to the toe side as the weight shifts from the heel side to the toe side during walking. By sequentially compressing and deforming toward the end portion 3a, the air containing moisture that has flowed out of the shoe inner space B and accumulated in the elastic air chamber 3 mainly passes from the heel side end portion 3b of the elastic air chamber 3 to the toe side end. It is pushed toward the portion 3a, and is discharged from the toe side end portion 3a through the first ventilation path 4a to the outside of the shoe through the first ventilation port 5a.
Slightly after that, a part of the elastic air chamber 3 partially expands and deforms sequentially from the heel side end portion 3b to the toe side end portion 3a. 5b passes through the second air passage 4b and is sucked into the elastic air chamber 3 from the heel side end portion 3b and flows into the shoe inner space B.
By repeating the pump operation accompanying such walking, air is smoothly put into and out of the shoe inner space B which is closed with the insertion of the foot without colliding in the middle.
Thereby, the foot stuffiness can be reduced by exchanging the air in the shoe interior space B with walking.
Next, each embodiment of the present invention will be described with reference to the drawings.

  In the first embodiment, as shown in FIGS. 1, 2, and 4, two intermediate sheets 3 c and 3 f are stacked between the insole 1 and the outsole 2, and the upper intermediate portion adjacent to the insole 1 is intermediate. The sheet 3c opens the space 3d of the elastic chamber 3 to accommodate the sheet-like elastic body 3e, and the first air passage 4a and the second air passage 4b are formed at one end of the space 3d. One end of the first air passage 4a is connected to the toe side end portion 3a to be connected, and one end of the second air passage 4b is connected to the heel side end portion 3b formed at the other end of the space portion 3a. The first vent 5a and the second vent 5b connected to the other ends 4c and 4d of the path 4a and the second vent 4b are opened side by side in the vicinity of the heel portion 6 on the bottom 2.

As the elastic body 3e, a relatively thick fiber made of a synthetic resin fiber such as nylon (registered trademark) having a large elasticity and knitted into a pile structure or a coil structure is used, and is shown in FIG. 1, FIG. 2, and FIG. In this example, the elastic body 3e is arranged so as to cover most of the toe side relative to the portion of the upper intermediate sheet 3c facing the arch.
Although not shown in the drawings as another example, the elastic body 3e can be enlarged so as to cover a portion facing the outside of the arch, or can be enlarged to the entire stepping portion where the weight is applied during walking.

Furthermore, the peripheral end of the elastic body 3e is fixed to the inner periphery of the space 3d with, for example, an adhesive, and is integrated with the upper intermediate sheet 3c.
The lower intermediate sheet 3f adjacent to the bottom 2 is connected to the other ends 4c and 4d of the first air passage 4a and the second air passage 4b, and the first air vent 5a and the second air vent 5b. Through-holes 3g, 3h are opened, and a waterproof breathable member 7 such as a sheet or film is provided on one or both surfaces of the lower intermediate sheet 3f so as to cover these through-holes 3g, 3h. It is stuck.

And as an example of the manufacturing method of the shoe A which concerns on such Example 1, it fixes by injecting the edge part of the upper U to the insole 1, etc., and it is 2 sheets on the outer side of the insole 1 in the post process. The intermediate sheets 3c and 3f and the bottom 2 are stacked in order, and are fixed by, for example, an adhesive, and finally the heel portion 6 is fixed.
Further, in the examples shown in FIGS. 1, 2 and 4, the insole 1 in which a large number of small holes 1a are opened in the stepping portion where the weight is applied during walking is used. 1 can also be used.

According to the shoe A according to the first embodiment of the present invention, the space portion 3d of the elastic chamber 3 is formed in the intermediate sheet 3c laminated between the insole 1 and the outsole 2 to form a sheet-like elastic body. Since 3e is accommodated, for example, a hollow body made of an elastic film such as rubber does not cause unstable deformation in which the other part expands and deforms as much as part of the elastic air chamber 3 is compressed and deformed. The elastic air chamber 3 can be formed over a wide range of the shoe sole S.
Thereby, there is an advantage that a large amount of air can be taken in and out without giving the user a sense of incongruity.

Further, since the space portion 3d of the elastic air chamber 3 and the first air passage 4a and the second air passage 4b are respectively connected to the intermediate sheet 3c, the intermediate sheet 3c is sandwiched between the midsole 1 and the bottom 2. Only, the elastic air chamber 3, the first air passage 4a, and the second air passage 4b are integrally arranged.
Thereby, there exists an advantage that the elastic air chamber 3 can be integrated easily.

  In the second embodiment, as shown in FIGS. 5 and 6, the first vent 5a and the second vent 5b connected to the other ends 4c and 4d of the first vent 4a and the second vent 4b are heeled. The configuration opened on the side of the unit 6 is different from the first embodiment shown in FIGS. 1, 2 and 4, and other configurations are the same as the first embodiment shown in FIGS. It is.

  The main bottom 2 has through holes 2a, 2b communicating with the through holes 3g, 3h opened in the lower intermediate sheet 3f. The through holes 2a, 2b, the first vent 5a, and the second Communication holes 6 a and 6 b communicating with the vent 5 b are opened in the heel portion 6.

In the example shown in FIGS. 5 and 6, the communication holes 6 a and 6 b of the heel portion 6 are formed in a substantially L shape, and the first ventilation port 5 a and the second ventilation port 5 b are opposite to each other in the heel portion 6. Opened on both side surfaces 6c, a dustproof member 8 such as a mesh plate or a perforated plate is disposed in the middle of the communication holes 6a and 6b as necessary.
Although not shown as other examples, the first vent 5a and the second vent 5b are arranged side by side on the same or the same side of the heel 6 as the arch, or the boundary between the heel 6 and the bottom 2 It is also possible to open in

  Such a shoe A according to the second embodiment of the present invention can provide the same effects as those of the first embodiment described above, and in addition, the space portion 3d of the elastic air chamber 3 and the seat close to the position where the heel portion 6 is disposed. There is an advantage that the amount of air to be ventilated can be increased by easily expanding the elastic body 3e.

In the embodiment shown above, the elastic air chamber 3 is formed by laminating two intermediate sheets 3 c and 3 f between the midsole 1 and the bottom 2, and elastically acts on the upper intermediate sheet 3 c adjacent to the midsole 1. Although the space 3d in which the body 3e is accommodated is opened, the present invention is not limited to this, and only one intermediate sheet 3c is laminated between the insole 1 and the bottom 2 and the elastic body 3e is attached to the intermediate sheet 3c. May be opened, or a hollow body made of an elastic film such as rubber may be disposed in place of the space 3d and the elastic body 3e.
Further, in the illustrated example, the main bottom 2 and the heel portion 6 are separately formed and fixed, but the present invention is not limited to this, and the main bottom 2 and the heel portion 6 may be integrally formed.

DESCRIPTION OF SYMBOLS 1 Middle bottom 2 Base bottom 3 Elastic air chamber 3a Toe side edge part 3b Edge side edge part 3c Intermediate sheet 3d Space part 4a First ventilation path 4b Second ventilation path 5a First ventilation hole 5b Second ventilation hole B Shoes internal space

Claims (3)

An elastic air chamber provided along the insole from the insole to the bottom, and elastically changing in volume in the thickness direction of the insole;
A first air passage provided to connect to the toe side end of the elastic air chamber and a second air passage provided to connect to the heel side end of the elastic air chamber;
A first ventilation port provided so that the first ventilation channel communicates with the outside of the shoe and a second ventilation port provided so that the second ventilation channel communicates with the outside of the shoe,
The elastic air chamber communicates with the shoe interior space, and part of the elastic air chamber is partially compressed and deformed sequentially from the heel side end portion to the toe side end portion as the body weight moves during walking. In accordance with these partial compressive deformations, a part of the elastic air chamber is arranged so as to partially expand and deform sequentially from the heel side end to the toe side end. shoes.   An intermediate sheet is laminated between the insole and the main bottom, and a space portion of the elastic air chamber is formed in the intermediate sheet, and the space is elastically compressed and expanded in the thickness direction of the insole in the space portion. The shoe according to claim 1, wherein a possible sheet-like elastic body is accommodated.   A space portion of the elastic air chamber, the first air passage, and the second air passage are formed in an intermediate sheet laminated between the middle bottom and the main bottom, and are formed at one end of the space portion. The first air passage is connected to the toe side end portion, and the second air passage is connected to the heel side end portion formed at the other end of the space portion. The listed shoes.

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