US20070294923A1 - Footwear - Google Patents
Footwear Download PDFInfo
- Publication number
- US20070294923A1 US20070294923A1 US11/604,723 US60472306A US2007294923A1 US 20070294923 A1 US20070294923 A1 US 20070294923A1 US 60472306 A US60472306 A US 60472306A US 2007294923 A1 US2007294923 A1 US 2007294923A1
- Authority
- US
- United States
- Prior art keywords
- air
- cylinder
- chamber
- check valve
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000035900 sweating Effects 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000002781 deodorant agent Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
- A43B7/081—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures the air being forced from outside
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/181—Resiliency achieved by the structure of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
Definitions
- the present invention relates to footwear, and especially relates to footwear capable of alleviating the effects of sweating feet.
- the footwear described above has problems as follows. That is, since the expanded portion of the air-tight cover (elastic member) is exposed outside from the insole, the expanded portion of the air-tight cover (elastic member) is easy to wear out from use. Further, a clearance is formed between the insole and the surrounding of the expanded portion of the air-tight cover (elastic member), and dusts and the like easily come into the clearance. Further, since the expanded portion of the air-tight cover (elastic member) is projected from the insole, the appearance is not good.
- Patent Document 1 Japanese Patent No. 2918836 (FIGS. 1 and 2)
- An objective of the present invention is to provide footwear which has overcome the problems described above.
- the elastic member since the elastic member has an expanded portion expanding upward, a large amount of deformation is created to increase the pumping action by incorporating and exhausting air into and from the chamber. Further, the expanded portion of the elastic member does not project beyond the insole unlike the conventional footwear, and the insole has a covering portion which is a recessed portion covering the expanded portion of the elastic member. Due to this structure, the expanded portion of the elastic member can be protected. In addition, since the expanded portion never projects beyond the insole unlike the conventional footwear, the appearance is not degraded.
- one and the same check valve can alone serve as a first check valve for incorporating outside air and also as a second check valve for exhausting air by changing the orientation of the check valve.
- one end of the pipe accommodated in the guide groove is inserted so as to be in contact with the outer wall of the second′ cylinder of the second check valve for exhausting air, whereas the other end of the pipe is structured so as to face the branched groove branched from the guide groove into the left and right sides.
- outside air can be introduced in an air-tight state.
- outside-air intake opening is always open, when rain falls, the rain will enter the footwear via the outside-air intake opening.
- the footwear recited in claim 4 in addition to the effect of the invention recited in claim 1 described above, by covering the outside-air intake opening with the cover, entry of rain into the footwear can be prevented.
- the elastic member When the site of the heel is put onto the elastic member, the elastic member will be depressed into the chamber having the recessed portion, and this causes uncomfortable feeling during walking.
- the footwear recited in claim 5 in addition to the effect of the invention recited in claim 1 described above, even if the site of the heel is put onto the elastic member, the supporting member receives the elastic member as it descends, and reduces the descending amount of the elastic member. As a result, the uncomfortable feeling during walking can be reduced.
- the other end of the pipe faces the enlarged groove, and said enlarged groove faces the opening of the insole. Further, the opening of the insole is enlarged toward the top end located at the toe side. Thus, the resistance to the air supplied from the pipe is reduced, and sufficient outside air can be introduced into the footwear.
- FIG. 1 is a schematic perspective view of footwear according to an embodiment of the present invention
- FIG. 2 is a schematic cross-sectional view in an exploded state taken along the line 2 - 2 in FIG. 1 ;
- FIG. 3 is a schematic exploded perspective view showing the footwear of FIG. 1 with its upper removed;
- FIG. 4 is a schematic exploded perspective view of a first check valve for incorporating outside air (or a second check valve for exhausting air) mounted to the footwear of FIG. 1 ;
- FIG. 5 is a schematic cross-sectional view taken along the line 5 - 5 of FIG. 3 ;
- FIG. 6 is a schematic cross-sectional view before the first check valve for incorporating outside air of FIG. 5 is mounted;
- FIG. 7 is a schematic cross-sectional view for illustrating the function of the first check valve for incorporating outside air of FIG. 5 ;
- FIG. 8 is a schematic cross-sectional view taken along the line 8 - 8 of FIG. 3 ;
- FIG. 9 is a schematic cross-sectional view before the pipe is mounted to the second check valve for exhausting air of FIG. 8 ;
- FIG. 10 is a schematic plan view of the elastic member of FIG. 3 ;
- FIG. 11 is a schematic cross-sectional view taken along the line 11 - 11 of FIG. 10 ;
- FIG. 12 is a schematic cross-sectional view in a state where the elastic member of FIG. 11 closes the recessed portion of the outsole in an air-tight state;
- FIG. 13 is a schematic plan view of the insole of FIG. 3 ;
- FIG. 14 is a schematic cross-sectional view taken along the line 14 - 14 of FIG. 13 ;
- FIG. 15 is a schematic cross-sectional view taken along the line 15 - 15 of FIG. 13 ;
- FIG. 16 is a schematic cross-sectional view of footwear different from the footwear of FIG. 2 according to another embodiment
- FIG. 17 is a schematic exploded perspective view showing the footwear of FIG. 16 in an exploded state
- FIG. 18 is a schematic cross-sectional view of the outsole of FIG. 17 ;
- FIG. 19 is a schematic partially enlarged cross-sectional view showing a part of FIG. 18 in an enlarged state
- FIG. 20 is a schematic cross-sectional view taken along the line 20 - 20 of FIG. 16 ;
- FIG. 21 is a schematic cross-sectional view taken along the line 21 - 21 of FIG. 16 ;
- FIG. 22 is a schematic cross-sectional view of FIG. 16 .
- the reference numeral A denotes footwear.
- the footwear A schematically includes an outsole 1 , an insole 2 , and an upper 3 .
- the outsole 1 is made of polyurethane for example, and includes a chamber 1 a having a recessed portion at the site to be located under the heel.
- the reference numeral 4 shown in FIG. 3 denotes an elastic member.
- the elastic member 4 is, for example, made of vinyl chloride, and includes an expanded portion 4 a for closing in an air-tight state the upper surface of the chamber 1 a having the recessed portion (for example, the recessed portion of the chamber 1 a is covered with the elastic member 4 , and the elastic member 4 is adhered to the upper surface of the chamber 1 a by an adhesive agent), and at the same time, has an expanded portion 4 a which expands upward.
- the insole 2 includes a covering portion 2 a which is a recessed portion for covering the expanded portion 4 a of the elastic member 4 , and at the same time, includes a plurality of openings 2 b over the upper surface.
- the reference numeral 1 b shown in FIG. 1 denotes an outside-air intake opening provided on the side wall of the outsolel.
- the outside-air intake opening 1 b is also provided on the back surface side of the illustrated outside-air intake opening 1 b shown in FIG. 1 .
- the reference numeral 1 c shown in FIG. 6 denotes an outside-air passage provided to the outsole 1 and establishing the communication between the outside-air intake opening 1 b and the chamber 1 a.
- a first check valve G 1 for incorporating outside air is provided inside the outside-air passage 1 c.
- the first check valve G 1 for incorporating outside air operates to allow the air to flow toward the chamber 1 a and to be introduced therein, whereas to prevent the flow of the air from the chamber 1 a toward the side of outside air (see FIG. 7 ).
- the first check valve G 1 for incorporating outside air is press-fit into the outside air passage 1 c, and is disposed at a position where the end surface of a later-described second′ cylinder 20 b of the first check valve G 1 for incorporating outside air faces the chamber 1 a.
- the check valve of the first check valve G 1 includes a first cylinder body 10 , a second cylinder body 20 to be inserted into the first cylinder body 10 , and a valve 30 interposed between the second cylinder body 20 and the first cylinder body 10 .
- the first cylinder body 10 includes a first cylinder 10 a, a second cylinder 10 b connected to the first cylinder 10 a and having an inner diameter larger than the inner diameter of the first cylinder 10 a, and a first passage 10 c for establishing communication between the second cylinder 10 b and the first cylinder 10 a.
- the first cylinder 10 a and the second cylinder 10 b are integrally formed into a one-piece unit by plastic.
- the second cylinder body 20 includes a first′ cylinder 20 a having an outer diameter smaller than the inner diameter of the second cylinder 10 b in such a manner as to be in contact with the inner wall of the second cylinder 10 b, a second′ cylinder 20 b connected to the first′ cylinder 20 a and having an outer diameter smaller than the outer diameter of the first′ cylinder 20 a, and a second passage 20 c for establishing communication between the second′ cylinder 20 b and the first cylinder 20 a ′.
- the first′ cylinder 20 a and the second′ cylinder 20 b are integrally formed into a one-piece unit by plastic.
- valve 30 includes a ring portion 30 a, and a cover 30 b supported by the ring portion 30 a and having a size larger than the inner diameter of the first cylinder 10 a and smaller than the inner diameter of the ring portion 30 a and the inner diameter of the first′ cylinder 20 a.
- the reference numeral S shown in FIG. 4 denotes a stopper.
- the stopper S includes a ring portion S 1 , and a plurality of claws S 2 projecting inward of the ring portion S 1 .
- the ring portion S 1 serves as a stopper at the time when the first check valve G 1 or the second check valve G 2 are attached in a state of facing the chamber 1 a.
- the claws S 2 are to engage with the outer peripheral surface of the second′ cylinder 20 b or the second cylinder 10 b.
- the reference numeral P shown in FIG. 2 denotes a discharge passage for establishing communication between the chamber 1 a and the opening 2 b.
- a second check valve G 2 for exhausting air is provided inside the discharge passage P.
- the second check valve G 2 for exhausting air serves to allow the air to flow toward the direction to be discharged from the chamber 1 a, whereas to prevent the air from flowing into the chamber 1 a (see FIG. 9 ).
- the second check valve G 2 for exhausting air is structurally the same as the first check valve G 1 for incorporating outside air, except for the orientation and the site to be in contact with the stopper S, and therefore, its description will be omitted.
- the first check valve G 1 for incorporating outside air has a structure in which the first cylinder 10 a of the check valve is located at the side of outside air, and the second′ cylinder 20 b is located at the side of the chamber 1 a, and the claws S 2 of the stopper S are engaged with the outer peripheral surface of the second′ cylinder 20 b.
- the second check valve G 2 for exhausting air has a structure in which the first cylinder body 10 a of the check valve is located at the side of the chamber 1 a, and the claws S 2 of the stopper S are engaged with the outer peripheral surface of the first cylinder body 10 a.
- the discharge passage P described above is provided to the outsole 1 and communicates with the chamber 1 a.
- the discharge passage P includes a linear guide groove P 1 extending toward the toe, a branched groove P 2 provided to the outsole 1 and branched from the linear guide groove P 1 into left and right sides and communicating with the opening 2 b, and a pipe P 3 accommodated in the guide groove P 1 .
- One end of the pipe P 3 is inserted so as to be in contact with the outer wall of the second′ cylinder 20 b of the second check valve G 2 for exhausting air, whereas the end surface of the first cylinder 10 a of the second check valve G 2 for exhausting air faces the chamber 1 a.
- the other end of the pipe P 3 is structured to face the branched groove P 2 (see FIG. 8 ).
- the elastic member 4 since the elastic member 4 has an expanded portion 4 a expanding upward, a large amount of deformation is created to increase the pumping action by incorporating and exhausting air into and from the chamber 1 a. Specifically, when the weight is applied to a heel, the expanded portion 4 a of the elastic member 4 enters the chamber 1 a to release air from the chamber 1 a via the discharge passage P and the opening 2 b, thereby alleviating the effects of sweating feet. When the application of the weight to the heel is stopped, the elastic member 4 elastically deforms to incorporate air into the chamber 1 a via the outside-air passage 1 c.
- the expanded portion 4 a of the elastic member 4 does not project beyond the insole 2 unlike the conventional footwear, and the insole 2 has a covering portion 2 a which is a recessed portion covering the expanded portion 4 a of the elastic member 4 . Due to this structure, the expanded portion 4 a of the elastic member 4 can be protected. In addition, since the expanded portion 4 a never projects beyond the insole 2 unlike the conventional footwear, the appearance is not degraded.
- the first check valve G 1 for incorporating outside air can alone serve as a first check valve G 1 for incorporating outside air and also as a second check valve G 2 for exhausting air by changing the orientation of the check valve.
- first check valve G 1 for incorporating outside air and the second check valve G 2 for exhausting the air may be respectively attached in such a manner that the end surface of the second′ cylinder 20 b of the first check valve G 1 for incorporating outside air faces the chamber 1 a, and that the end surface of the first cylinder 10 a of the second check valve G 2 for exhausting air faces the chamber 1 a.
- the check valves can be easily mounted.
- one end of the pipe P 3 is inserted so as to be in contact with the outer wall of the second′ cylinder 20 b of the second check valve G 2 for exhausting air, whereas the other end of the pipe P 3 is structured so as to face the branched groove P 2 . Due to this structure, the introduction of outside air can be easily achieved and the pipe P 3 can be kept in an air-tight state.
- the discharge passage P includes the linear guide groove P 1 , the branched groove P 2 , and the pipe P 3 accommodated in the guide groove P 1 .
- the present invention is not limited thereto.
- the discharge passage P may include a linear guide groove P 1 provided to the outsole 1 and communicating with the chamber 1 a and extending toward the toe, an enlarged groove P 2 ′ provided to the outsole 1 and expanding from the top end of the linear guide groove P 1 , and a pipe P 3 accommodated in the guide groove P 1 .
- the one end of the pipe P 3 is inserted so as to be in contact with the outer wall of the second′ cylinder 20 b of the second check valve G 2 for exhausting air.
- the end surface of the first cylinder 10 a of the second check valve G 2 for exhausting air faces the chamber 1 a.
- the other end of the pipe P 3 faces the enlarged groove P 2 ′.
- the other end of the pipe P 3 faces the enlarged groove P 2 ′ whereas said enlarged groove P 2 ′ faces the opening 2 b of the insole 2 .
- the opening 2 b of the insole 2 enlarges toward the top end located at the toe side.
- the reference numeral 2 C shown in FIG. 17 denotes a deodorant member made of cloth having a deodorant function.
- the portion of the pipe P 3 near the toe is in a flat shape as shown in FIGS. 20 and 21 .
- the constituent elements identical to those of the foregoing embodiment are denoted by the same reference numerals and their description is partially omitted.
- the reference numeral F shown in FIG. 22 denotes a cover detachably attached to the outside-air intake opening 1 b. If the outside-air intake opening 1 b is always open, when rain falls, the rain will enter the footwear A via the outside-air intake opening 1 b. By covering the outside-air intake opening 1 b with the cover F, entry of rain into the footwear A can be prevented.
- the reference numeral 50 shown in FIG. 17 denotes a supporting member having elastic force.
- the supporting member is located within the chamber 1 a having a recessed portion under the elastic member 4 , for supporting the elastic member 4 when it is depressed. Without the supporting member 50 , when the site of a heel is put onto the elastic member 4 , the elastic member 4 is depressed into the chamber 1 a having a recessed portion, and this causes uncomfortable feeling during walking. Contrarily, according to the footwear A of this embodiment formed with the supporting member 50 , when the site of a heel is put onto the elastic member 4 , the supporting member 50 receives the elastic member 4 as it descends and reduces the descending amount of the elastic member 4 . As a result, the uncomfortable feeling during walking can be reduced.
Abstract
The present invention provides footwear capable of alleviating the effects of sweating feet. The footwear A includes: an outsole 1 including a chamber 1 a having a recessed portion at a site to be located under a heel; an elastic member 4 for closing an upper surface of the chamber 1 a having the recessed portion into an air-tight state, and including an expanded portion 4 a expanding upward; an insole 2 having a covering portion 2 a which is a recessed portion for covering the expanded portion of the elastic member 4, and having an opening 2 b on its upper surface; an outside-air intake opening 1 b provided on a side wall of the outsole 1; an outside-air passage 1 c provided to the outsole 1 and establishing communication between the outside-air intake opening 1 b and the chamber 1 a; a first check valve G1 for incorporating outside air, provided inside the outside-air passage 1 c to allow the air to flow toward the chamber la and to enter therein, whereas to block the flow of the air from the chamber 1 a to the side of outside air; a discharge passage P for establishing communication between the chamber 1 a and the opening 2 b; and a second check valve G2 for exhausting the air, provided inside the discharge passage P to allow the air to flow out of the chamber 1 a, whereas to block the flow of the air into the chamber 1 a.
Description
- 1. Field of the Invention
- The present invention relates to footwear, and especially relates to footwear capable of alleviating the effects of sweating feet.
- 2. Description of the Related Art
- Conventionally, there has been footwear capable of alleviating the effects of sweating feet (for example, see Patent Document 1).
- This is “footwear capable of ventilation during walking”, wherein the volume inside a pump chamber is changed by utilizing the change in loads applied to a heel during walking so as to force the air out of the footwear to the outside.
- However, the footwear described above has problems as follows. That is, since the expanded portion of the air-tight cover (elastic member) is exposed outside from the insole, the expanded portion of the air-tight cover (elastic member) is easy to wear out from use. Further, a clearance is formed between the insole and the surrounding of the expanded portion of the air-tight cover (elastic member), and dusts and the like easily come into the clearance. Further, since the expanded portion of the air-tight cover (elastic member) is projected from the insole, the appearance is not good.
- [Patent Document 1] Japanese Patent No. 2918836 (FIGS. 1 and 2)
- An objective of the present invention is to provide footwear which has overcome the problems described above.
- According to the footwear recited in
claim 1, since the elastic member has an expanded portion expanding upward, a large amount of deformation is created to increase the pumping action by incorporating and exhausting air into and from the chamber. Further, the expanded portion of the elastic member does not project beyond the insole unlike the conventional footwear, and the insole has a covering portion which is a recessed portion covering the expanded portion of the elastic member. Due to this structure, the expanded portion of the elastic member can be protected. In addition, since the expanded portion never projects beyond the insole unlike the conventional footwear, the appearance is not degraded. - Further, according to the footwear recited in
claim 2, in addition to the effect of the invention recited inclaim 1 described above, unlike the conventional check valve in which the pipe is closed at the closed middle portion, and a slit and an opening are provided on one side of the closed middle portion whereas another slit and another opening are provided on the other side thereof with the closed middle portion interposed therebetween, one and the same check valve can alone serve as a first check valve for incorporating outside air and also as a second check valve for exhausting air by changing the orientation of the check valve. - Further, according to the footwear recited in
claim 3, in addition to the effect of the invention recited inclaim 2 described above, one end of the pipe accommodated in the guide groove is inserted so as to be in contact with the outer wall of the second′ cylinder of the second check valve for exhausting air, whereas the other end of the pipe is structured so as to face the branched groove branched from the guide groove into the left and right sides. Thus, outside air can be introduced in an air-tight state. - If the outside-air intake opening is always open, when rain falls, the rain will enter the footwear via the outside-air intake opening. According to the footwear recited in
claim 4, in addition to the effect of the invention recited inclaim 1 described above, by covering the outside-air intake opening with the cover, entry of rain into the footwear can be prevented. - When the site of the heel is put onto the elastic member, the elastic member will be depressed into the chamber having the recessed portion, and this causes uncomfortable feeling during walking. However, according to the footwear recited in claim 5, in addition to the effect of the invention recited in
claim 1 described above, even if the site of the heel is put onto the elastic member, the supporting member receives the elastic member as it descends, and reduces the descending amount of the elastic member. As a result, the uncomfortable feeling during walking can be reduced. - Further, according to the footwear recited in claim 6, in addition to the effect of the invention recited in
claim 2 described above, the other end of the pipe faces the enlarged groove, and said enlarged groove faces the opening of the insole. Further, the opening of the insole is enlarged toward the top end located at the toe side. Thus, the resistance to the air supplied from the pipe is reduced, and sufficient outside air can be introduced into the footwear. -
FIG. 1 is a schematic perspective view of footwear according to an embodiment of the present invention; -
FIG. 2 is a schematic cross-sectional view in an exploded state taken along the line 2-2 inFIG. 1 ; -
FIG. 3 is a schematic exploded perspective view showing the footwear ofFIG. 1 with its upper removed; -
FIG. 4 is a schematic exploded perspective view of a first check valve for incorporating outside air (or a second check valve for exhausting air) mounted to the footwear ofFIG. 1 ; -
FIG. 5 is a schematic cross-sectional view taken along the line 5-5 ofFIG. 3 ; -
FIG. 6 is a schematic cross-sectional view before the first check valve for incorporating outside air ofFIG. 5 is mounted; -
FIG. 7 is a schematic cross-sectional view for illustrating the function of the first check valve for incorporating outside air ofFIG. 5 ; -
FIG. 8 is a schematic cross-sectional view taken along the line 8-8 ofFIG. 3 ; -
FIG. 9 is a schematic cross-sectional view before the pipe is mounted to the second check valve for exhausting air ofFIG. 8 ; -
FIG. 10 is a schematic plan view of the elastic member ofFIG. 3 ; -
FIG. 11 is a schematic cross-sectional view taken along the line 11-11 ofFIG. 10 ; -
FIG. 12 is a schematic cross-sectional view in a state where the elastic member ofFIG. 11 closes the recessed portion of the outsole in an air-tight state; -
FIG. 13 is a schematic plan view of the insole ofFIG. 3 ; -
FIG. 14 is a schematic cross-sectional view taken along the line 14-14 ofFIG. 13 ; -
FIG. 15 is a schematic cross-sectional view taken along the line 15-15 ofFIG. 13 ; -
FIG. 16 is a schematic cross-sectional view of footwear different from the footwear ofFIG. 2 according to another embodiment; -
FIG. 17 is a schematic exploded perspective view showing the footwear ofFIG. 16 in an exploded state; -
FIG. 18 is a schematic cross-sectional view of the outsole ofFIG. 17 ; -
FIG. 19 is a schematic partially enlarged cross-sectional view showing a part ofFIG. 18 in an enlarged state; -
FIG. 20 is a schematic cross-sectional view taken along the line 20-20 ofFIG. 16 ; -
FIG. 21 is a schematic cross-sectional view taken along the line 21-21 ofFIG. 16 ; and -
FIG. 22 is a schematic cross-sectional view ofFIG. 16 . - Footwear according to an embodiment of the present invention will be described referring to the drawings.
- In
FIGS. 1 to 15 , the reference numeral A denotes footwear. The footwear A schematically includes anoutsole 1, aninsole 2, and an upper 3. - The
outsole 1 is made of polyurethane for example, and includes a chamber 1 a having a recessed portion at the site to be located under the heel. Thereference numeral 4 shown inFIG. 3 denotes an elastic member. Theelastic member 4 is, for example, made of vinyl chloride, and includes an expandedportion 4 a for closing in an air-tight state the upper surface of the chamber 1 a having the recessed portion (for example, the recessed portion of the chamber 1 a is covered with theelastic member 4, and theelastic member 4 is adhered to the upper surface of the chamber 1 a by an adhesive agent), and at the same time, has an expandedportion 4 a which expands upward. Further, as shown inFIGS. 13 to 15 , theinsole 2 includes a coveringportion 2 a which is a recessed portion for covering the expandedportion 4 a of theelastic member 4, and at the same time, includes a plurality ofopenings 2 b over the upper surface. - The reference numeral 1 b shown in
FIG. 1 denotes an outside-air intake opening provided on the side wall of the outsolel. The outside-air intake opening 1 b is also provided on the back surface side of the illustrated outside-air intake opening 1 b shown inFIG. 1 . - Further, the reference numeral 1 c shown in
FIG. 6 denotes an outside-air passage provided to theoutsole 1 and establishing the communication between the outside-air intake opening 1 b and the chamber 1 a. - Inside the outside-air passage 1 c, a first check valve G1 for incorporating outside air is provided. The first check valve G1 for incorporating outside air operates to allow the air to flow toward the chamber 1 a and to be introduced therein, whereas to prevent the flow of the air from the chamber 1 a toward the side of outside air (see
FIG. 7 ). - The first check valve G1 for incorporating outside air is press-fit into the outside air passage 1 c, and is disposed at a position where the end surface of a later-described
second′ cylinder 20 b of the first check valve G1 for incorporating outside air faces the chamber 1 a. - Specifically, as shown in
FIG. 4 , the check valve of the first check valve G1 includes a first cylinder body 10, asecond cylinder body 20 to be inserted into the first cylinder body 10, and a valve 30 interposed between thesecond cylinder body 20 and the first cylinder body 10. - The first cylinder body 10 includes a
first cylinder 10 a, a second cylinder 10 b connected to thefirst cylinder 10 a and having an inner diameter larger than the inner diameter of thefirst cylinder 10 a, and afirst passage 10 c for establishing communication between the second cylinder 10 b and thefirst cylinder 10 a. For example, thefirst cylinder 10 a and the second cylinder 10 b are integrally formed into a one-piece unit by plastic. - Further, the
second cylinder body 20 includes afirst′ cylinder 20 a having an outer diameter smaller than the inner diameter of the second cylinder 10 b in such a manner as to be in contact with the inner wall of the second cylinder 10 b, asecond′ cylinder 20 b connected to the first′cylinder 20 a and having an outer diameter smaller than the outer diameter of the first′cylinder 20 a, and asecond passage 20 c for establishing communication between the second′cylinder 20 b and thefirst cylinder 20 a′. For example, the first′cylinder 20 a and the second′cylinder 20 b are integrally formed into a one-piece unit by plastic. - Further, the valve 30 includes a
ring portion 30 a, and acover 30 b supported by thering portion 30 a and having a size larger than the inner diameter of thefirst cylinder 10 a and smaller than the inner diameter of thering portion 30 a and the inner diameter of the first′cylinder 20 a. - Further, the reference numeral S shown in
FIG. 4 denotes a stopper. The stopper S includes a ring portion S1, and a plurality of claws S2 projecting inward of the ring portion S1. The ring portion S1 serves as a stopper at the time when the first check valve G1 or the second check valve G2 are attached in a state of facing the chamber 1 a. Further, the claws S2 are to engage with the outer peripheral surface of the second′cylinder 20 b or the second cylinder 10 b. - Therefore, as shown in
FIG. 7 , when air flows from thefirst passage 10 c toward thesecond passage 20 c into thecover 30 b, thecover 30 b moves into the first′cylinder 20 a, and at the same time, air is introduced into thesecond passage 20 c. Contrarily, when air flows from thesecond passage 20 c toward thefirst passage 10 c into thecover 30 b, thecover 30 b operates to close thefirst passage 10 c of the first cylinder 1 a. - Further, the reference numeral P shown in
FIG. 2 denotes a discharge passage for establishing communication between the chamber 1 a and theopening 2 b. Inside the discharge passage P, a second check valve G2 for exhausting air is provided. The second check valve G2 for exhausting air serves to allow the air to flow toward the direction to be discharged from the chamber 1 a, whereas to prevent the air from flowing into the chamber 1 a (seeFIG. 9 ). The second check valve G2 for exhausting air is structurally the same as the first check valve G1 for incorporating outside air, except for the orientation and the site to be in contact with the stopper S, and therefore, its description will be omitted. - Specifically, as shown in
FIG. 7 , the first check valve G1 for incorporating outside air has a structure in which thefirst cylinder 10 a of the check valve is located at the side of outside air, and the second′cylinder 20 b is located at the side of the chamber 1 a, and the claws S2 of the stopper S are engaged with the outer peripheral surface of the second′cylinder 20 b. Contrarily, as shown inFIG. 9 , the second check valve G2 for exhausting air has a structure in which thefirst cylinder body 10 a of the check valve is located at the side of the chamber 1 a, and the claws S2 of the stopper S are engaged with the outer peripheral surface of thefirst cylinder body 10 a. - Further, as shown in
FIGS. 3 and 9 , the discharge passage P described above is provided to theoutsole 1 and communicates with the chamber 1 a. The discharge passage P includes a linear guide groove P1 extending toward the toe, a branched groove P2 provided to theoutsole 1 and branched from the linear guide groove P1 into left and right sides and communicating with theopening 2 b, and a pipe P3 accommodated in the guide groove P1. One end of the pipe P3 is inserted so as to be in contact with the outer wall of the second′cylinder 20 b of the second check valve G2 for exhausting air, whereas the end surface of thefirst cylinder 10 a of the second check valve G2 for exhausting air faces the chamber 1 a. The other end of the pipe P3 is structured to face the branched groove P2 (seeFIG. 8 ). - Therefore, according to the footwear A described above, since the
elastic member 4 has an expandedportion 4 a expanding upward, a large amount of deformation is created to increase the pumping action by incorporating and exhausting air into and from the chamber 1 a. Specifically, when the weight is applied to a heel, the expandedportion 4 a of theelastic member 4 enters the chamber 1 a to release air from the chamber 1 a via the discharge passage P and theopening 2 b, thereby alleviating the effects of sweating feet. When the application of the weight to the heel is stopped, theelastic member 4 elastically deforms to incorporate air into the chamber 1 a via the outside-air passage 1 c. - Further, the expanded
portion 4 a of theelastic member 4 does not project beyond theinsole 2 unlike the conventional footwear, and theinsole 2 has a coveringportion 2 a which is a recessed portion covering the expandedportion 4 a of theelastic member 4. Due to this structure, the expandedportion 4 a of theelastic member 4 can be protected. In addition, since the expandedportion 4 a never projects beyond theinsole 2 unlike the conventional footwear, the appearance is not degraded. - Further, unlike the conventional check valve (see Patent Document 1) in which the pipe is closed at the closed middle portion, and a slit and an opening are provided on one side of the closed middle portion whereas another slit and another opening are provided on the other side thereof with the closed middle portion interposed therebetween, the first check valve G1 for incorporating outside air (or the second check valve G2 for exhausting air) can alone serve as a first check valve G1 for incorporating outside air and also as a second check valve G2 for exhausting air by changing the orientation of the check valve.
- Further, the first check valve G1 for incorporating outside air and the second check valve G2 for exhausting the air may be respectively attached in such a manner that the end surface of the second′
cylinder 20 b of the first check valve G1 for incorporating outside air faces the chamber 1 a, and that the end surface of thefirst cylinder 10 a of the second check valve G2 for exhausting air faces the chamber 1 a. Thus, the check valves can be easily mounted. Further, one end of the pipe P3 is inserted so as to be in contact with the outer wall of the second′cylinder 20 b of the second check valve G2 for exhausting air, whereas the other end of the pipe P3 is structured so as to face the branched groove P2. Due to this structure, the introduction of outside air can be easily achieved and the pipe P3 can be kept in an air-tight state. - In the embodiment described above, the discharge passage P includes the linear guide groove P1, the branched groove P2, and the pipe P3 accommodated in the guide groove P1. However, the present invention is not limited thereto. Alternatively, for example, as shown in
FIGS. 16 to 22 , the discharge passage P may include a linear guide groove P1 provided to theoutsole 1 and communicating with the chamber 1 a and extending toward the toe, an enlarged groove P2′ provided to theoutsole 1 and expanding from the top end of the linear guide groove P1, and a pipe P3 accommodated in the guide groove P1. In this structure, the one end of the pipe P3 is inserted so as to be in contact with the outer wall of the second′cylinder 20 b of the second check valve G2 for exhausting air. The end surface of thefirst cylinder 10 a of the second check valve G2 for exhausting air faces the chamber 1 a. The other end of the pipe P3 faces the enlarged groove P2′. - According to the footwear of this embodiment, the other end of the pipe P3 faces the enlarged groove P2′ whereas said enlarged groove P2′ faces the
opening 2 b of theinsole 2. Further, theopening 2 b of theinsole 2 enlarges toward the top end located at the toe side. Thus, the resistance to the air supplied from the pipe P3 is reduced, and sufficient outside air can be introduced into the footwear A. - Further, the reference numeral 2C shown in
FIG. 17 denotes a deodorant member made of cloth having a deodorant function. The portion of the pipe P3 near the toe is in a flat shape as shown inFIGS. 20 and 21 . In the embodiment shown inFIGS. 16 to 22 , the constituent elements identical to those of the foregoing embodiment are denoted by the same reference numerals and their description is partially omitted. - Further, the reference numeral F shown in
FIG. 22 denotes a cover detachably attached to the outside-air intake opening 1 b. If the outside-air intake opening 1 b is always open, when rain falls, the rain will enter the footwear A via the outside-air intake opening 1 b. By covering the outside-air intake opening 1 b with the cover F, entry of rain into the footwear A can be prevented. - Further, the
reference numeral 50 shown inFIG. 17 denotes a supporting member having elastic force. The supporting member is located within the chamber 1 a having a recessed portion under theelastic member 4, for supporting theelastic member 4 when it is depressed. Without the supportingmember 50, when the site of a heel is put onto theelastic member 4, theelastic member 4 is depressed into the chamber 1 a having a recessed portion, and this causes uncomfortable feeling during walking. Contrarily, according to the footwear A of this embodiment formed with the supportingmember 50, when the site of a heel is put onto theelastic member 4, the supportingmember 50 receives theelastic member 4 as it descends and reduces the descending amount of theelastic member 4. As a result, the uncomfortable feeling during walking can be reduced.
Claims (6)
1. Footwear comprising:
an outsole including a chamber having a recessed portion at a site to be located under a heel;
an elastic member for closing an upper surface of said chamber having said recessed portion into an air-tight state, and including an expanded portion expanding upward;
an insole having a covering portion which is a recessed portion for covering the expanded portion of the elastic member, and having an opening on its upper surface;
an outside-air intake opening provided on a side wall of said outsole;
an outside-air passage provided to said outsole and establishing communication between said outside-air intake opening and said chamber;
a first check valve for incorporating outside air, provided inside the outside-air passage to allow the air to flow toward said chamber and to enter therein, whereas to block the flow of the air from said chamber to the side of outside air;
a discharge passage for establishing communication between said chamber and said opening; and
a second check valve for exhausting air, provided inside the discharge passage to allow the air to flow out of said chamber, whereas to block the flow of the air into said chamber.
2. Footwear according to claim 1 ,
wherein said check valve includes a first cylinder body, a second cylinder body to be inserted into said first cylinder body, and a valve interposed between said second cylinder body and said first cylinder body,
wherein said first cylinder body includes a first cylinder, a second cylinder connected to said first cylinder and having an inner diameter larger than an inner diameter of said first cylinder, and a first passage for establishing communication between said second cylinder and said first cylinder,
wherein said second cylinder body includes a first′ cylinder having an outer diameter smaller than an inner diameter of said cylinder body so that said first′ cylinder is in contact with an inner wall of said second cylinder, a second′ cylinder connected to said first′ cylinder and having an outer diameter smaller than an outer diameter of said first′ cylinder, and a second passage for establishing communication between said second′ cylinder and said first′ cylinder,
wherein said valve includes a ring portion, and a cover supported by said ring portion and having a size larger than the inner diameter of said first cylinder and smaller than the inner diameter of said ring portion and inner diameter of said first′ cylinder,
wherein, when air flows to said cover from said first passage toward said second passage, said cover moves into said first′ cylinder, and said air is introduced into said second passage,
wherein, when air flows to said cover from said second passage toward said first passage, said cover closes said first passage of said first cylinder,
wherein said first check valve for incorporating outside air moves said first cylinder body of said check valve to the side of outside air whereas said second′ cylinder body to the side of the chamber, and
wherein said second check valve for exhausting air moves said first cylinder body of said check valve to the side of said chamber.
3. Footwear according to claim 2 ,
wherein said outsole is made of polyurethane,
wherein said first check valve for incorporating outside air is press-fit into the outside-air passage, and the end surface of the second′ cylinder of said first check valve for incorporating outside air faces said chamber,
wherein said insole includes a plurality of openings,
wherein said discharge passage for establishing communication between said chamber and said openings include:
a linear guide groove provided to said outsole and communicating with said chamber and extending toward a toe;
a branched groove provided to said outsole, branched from said linear guide groove into left and right sides, and communicating with said openings; and
a pipe accommodated in said guide groove,
wherein one end of said pipe is inserted so as to be in contact with the outer wall of the second′ cylinder of the second check valve for exhausting air, the end surface of the first cylinder of the second check valve for exhausting air faces said chamber, and the other end of said pipe faces said branched groove.
4. Footwear according to claim 1 , wherein a detachable cover is provided to the outside-air intake opening.
5. Footwear according to claim 1 , further comprising a supporting member having an elastic force, located below the elastic member and within the chamber having a recessed portion, and supporting the elastic member as it moves down.
6. Footwear according to claim 2 , wherein said discharge passage comprises:
a linear guide groove provided to the outsole, communicating with the chamber, and extending toward the toe;
an enlarged groove provided to the outsole and enlarged from the top end of said linear guide groove; and
a pipe accommodated in said guide groove,
wherein one end of said pipe is inserted so as to be in contact with the outer wall of the second′ cylinder of the second check valve for exhausting air, the end surface of the first cylinder of the second check valve for exhausting air faces said chamber, and the other end of said pipe faces said enlarged groove, and
wherein the opening of the insole faces said enlarged groove and the opening of said insole enlarges toward the top end located at the toe side.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPUM2006-005066 | 2006-06-27 | ||
JP2006005066U JP3125082U (en) | 2006-06-27 | 2006-06-27 | footwear |
JP2006-295036 | 2006-10-31 | ||
JP2006295036A JP2008110081A (en) | 2006-10-31 | 2006-10-31 | Footwear |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070294923A1 true US20070294923A1 (en) | 2007-12-27 |
Family
ID=38904740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/604,723 Abandoned US20070294923A1 (en) | 2006-06-27 | 2006-11-28 | Footwear |
Country Status (1)
Country | Link |
---|---|
US (1) | US20070294923A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080189988A1 (en) * | 2007-02-14 | 2008-08-14 | Lar New International Corporation | Touch-control deodorant device for shoes |
US20100050471A1 (en) * | 2008-08-26 | 2010-03-04 | Young Seok Kim | Air Cushion shoe sole |
US20100223817A1 (en) * | 2009-03-05 | 2010-09-09 | Chiu Wang Chang | Shoe sole with ventilation |
EP2294936A1 (en) * | 2009-09-11 | 2011-03-16 | Wolverine World Wide, Inc. | Water barrier for footwear |
US20140182165A1 (en) * | 2011-06-08 | 2014-07-03 | Byung Hun Lee | Structure of shoe sole having superior ventilation function and double- landing function |
US20150359293A1 (en) * | 2014-06-12 | 2015-12-17 | Prince Edward Foryoh | Foot's Wear Protector |
US20160081424A1 (en) * | 2013-09-19 | 2016-03-24 | Nike, Inc. | Ventilation System For An Article Of Footwear |
US20170055641A1 (en) * | 2015-09-01 | 2017-03-02 | Vincent L. Truchsess | Footwear |
US20190116920A1 (en) * | 2017-10-24 | 2019-04-25 | Drkao International Co., Ltd. | Ventilative sole structure |
WO2019215220A1 (en) * | 2018-05-09 | 2019-11-14 | C. & J. Clark International Limited | A sole structure and an article of footwear |
US10609983B2 (en) | 2016-03-30 | 2020-04-07 | Infom Co., Ltd | Ventilation shoe |
US10674790B2 (en) * | 2015-07-02 | 2020-06-09 | Sean Seng | Self-cleaning footwear system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331146A (en) * | 1966-05-02 | 1967-07-18 | Karras Elias | Air circulating member for a shoe |
US5477626A (en) * | 1994-03-10 | 1995-12-26 | Kwon; Joong T. | Multifunctional shoe |
US5515622A (en) * | 1993-06-04 | 1996-05-14 | Ewing Athletics Co., Ltd. | Shoe construction |
US5975861A (en) * | 1997-01-06 | 1999-11-02 | Shin; Bongseop | Pumping assembly for use in ventilated footwear |
US6463679B1 (en) * | 1999-10-21 | 2002-10-15 | Yamamoto Limited | Forced ventilation system inside soles |
US7013585B2 (en) * | 2004-08-12 | 2006-03-21 | Chie-Fang Lo | Cushion device for shoes |
US7082696B2 (en) * | 2004-07-07 | 2006-08-01 | Chien-I Wu | Sole structure of Goodyear's dual-intake air-capsule shoes |
-
2006
- 2006-11-28 US US11/604,723 patent/US20070294923A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3331146A (en) * | 1966-05-02 | 1967-07-18 | Karras Elias | Air circulating member for a shoe |
US5515622A (en) * | 1993-06-04 | 1996-05-14 | Ewing Athletics Co., Ltd. | Shoe construction |
US5477626A (en) * | 1994-03-10 | 1995-12-26 | Kwon; Joong T. | Multifunctional shoe |
US5975861A (en) * | 1997-01-06 | 1999-11-02 | Shin; Bongseop | Pumping assembly for use in ventilated footwear |
US6463679B1 (en) * | 1999-10-21 | 2002-10-15 | Yamamoto Limited | Forced ventilation system inside soles |
US7082696B2 (en) * | 2004-07-07 | 2006-08-01 | Chien-I Wu | Sole structure of Goodyear's dual-intake air-capsule shoes |
US7013585B2 (en) * | 2004-08-12 | 2006-03-21 | Chie-Fang Lo | Cushion device for shoes |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080189988A1 (en) * | 2007-02-14 | 2008-08-14 | Lar New International Corporation | Touch-control deodorant device for shoes |
US20100050471A1 (en) * | 2008-08-26 | 2010-03-04 | Young Seok Kim | Air Cushion shoe sole |
US8056259B2 (en) * | 2008-08-26 | 2011-11-15 | Young Seok Kim | Air cushion shoe sole |
US20100223817A1 (en) * | 2009-03-05 | 2010-09-09 | Chiu Wang Chang | Shoe sole with ventilation |
US8074374B2 (en) * | 2009-03-05 | 2011-12-13 | Victoria Shoes Co., Ltd. | Shoe sole with ventilation |
EP2294936A1 (en) * | 2009-09-11 | 2011-03-16 | Wolverine World Wide, Inc. | Water barrier for footwear |
US20140182165A1 (en) * | 2011-06-08 | 2014-07-03 | Byung Hun Lee | Structure of shoe sole having superior ventilation function and double- landing function |
US20160081424A1 (en) * | 2013-09-19 | 2016-03-24 | Nike, Inc. | Ventilation System For An Article Of Footwear |
US20150359293A1 (en) * | 2014-06-12 | 2015-12-17 | Prince Edward Foryoh | Foot's Wear Protector |
US10674790B2 (en) * | 2015-07-02 | 2020-06-09 | Sean Seng | Self-cleaning footwear system |
US20170055641A1 (en) * | 2015-09-01 | 2017-03-02 | Vincent L. Truchsess | Footwear |
US10609983B2 (en) | 2016-03-30 | 2020-04-07 | Infom Co., Ltd | Ventilation shoe |
US20190116920A1 (en) * | 2017-10-24 | 2019-04-25 | Drkao International Co., Ltd. | Ventilative sole structure |
US10667573B2 (en) * | 2017-10-24 | 2020-06-02 | Drkao International Co., Ltd. | Ventilative sole structure |
WO2019215220A1 (en) * | 2018-05-09 | 2019-11-14 | C. & J. Clark International Limited | A sole structure and an article of footwear |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NIHON HEALTH SHOES CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAYAKAWA, TSUTOMU;REEL/FRAME:018641/0214 Effective date: 20061117 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |