US20060279049A1 - Air supply device of shoes with retractable wheels - Google Patents
Air supply device of shoes with retractable wheels Download PDFInfo
- Publication number
- US20060279049A1 US20060279049A1 US10/569,746 US56974606A US2006279049A1 US 20060279049 A1 US20060279049 A1 US 20060279049A1 US 56974606 A US56974606 A US 56974606A US 2006279049 A1 US2006279049 A1 US 2006279049A1
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- United States
- Prior art keywords
- air
- supply device
- shoe
- air supply
- shaft
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/26—Roller skates; Skate-boards with special auxiliary arrangements, e.g. illuminating, marking, or push-off devices
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/16—Skating boots
- A43B5/1633—Multipurpose skate boots
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/16—Skating boots
- A43B5/1641—Skating boots characterised by the sole ; characterised by the attachment of the skate
- A43B5/165—Skating boots characterised by the sole ; characterised by the attachment of the skate with ventilation means in the sole
Definitions
- the air supply device is interposed between selected adjacent ones of the wheels 12 in the illustrated embodiment, the air supply device may be arranged over a selected one of the wheels 12 such that the frictional roller 32 is in close contact with the selected wheel 12 .
- the same function as that of the above-described case is obtained in this case.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
An air supply device of a wheel-mounted shoe which can supply ambient air into the interior of the shoe by continuously suck the ambient air in by use of the rotating force of the frictional roller interposed between adjacent ones of the wheels rotatably mounted to the bracket of the outer sole of the shoe, irrespective of the rotating direction of the wheels. Accordingly, the air supply device eliminates uncomfortableness caused by sweat and odor generated from the user in the interior of the shoe, to maintain the interior of the shoe in a pleasant state, thereby helping the user's foot health.
Description
- The present invention relates to a shoe with wheels. More particularly, the present invention relates to an air supply device of a shoe with wheels which forcibly sucks ambient air, using rotating forces of the wheels and a frictional roller mounted to an outer sole of the shoe, to supply the sucked air into the interior of the shoe, thereby being capable of removing sweat and odor generated from the user in the interior of the shoe, and thus, maintaining the interior of the shoe in a pleasant state, thereby helping the user's foot health.
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FIG. 1 is a side view illustrating the configuration of a general in-line skate. The in-line skate shown inFIG. 1 is an exercise mechanism, which is also called a “roller blade”. As shown inFIG. 1 , the in-line skate includes ashoe 10, a plurality ofwheels 12 mounted to abracket 11 fixed to the lower surface of an outer sole of theshoe 10 such that eachwheel 12 is rotatable about ashaft 13, and abrake 14 mounted to a rear end of thebracket 11. In accordance with this configuration, the user who wears the in-line skate can travel on the road at high speed. - Also, various structures modified from such an in-line skate or roller blade have been developed. For example, there is a wheel-mounted shoe in which a wheel is mounted to a rear portion of an outer sole of the shoe to allow the user to not only perform walking, but also to perform movement, using the wheel. Such a wheel-mounted shoe is called a “Heelys shoe”. Also, there is a functional shoe in which a wheel is retractably mounted to an outer sole of the shoe so that the shoe has both the general shoe function and the roller blade function.
- As an example of inventions to improve the above-mentioned roller blade, Korean Utility Model No. 20-0308234 discloses a structure in which a damper is provided at each wheel to reduce impact generated when the wheel comes into contact with the ground. Korean Utility Model No. 20-0283620 discloses a roller blade having a structure to provide cushion to the roller blade and to provide stability. Also, Korean Utility Model No. 20-0266726 discloses a roller blade in which a light emitting element is mounted to allow the user to have a frontal visibility at night or in dark places.
- Also, there are inventions relating to shoes having retractable wheels. For example, Korean Utility Model No. 20-0225828 discloses a structure in which rollers are mounted to a bracket fixed to the outer sole of a shoe such that the rollers are received in recesses formed at front and rear portions of the outer sole and are extendable from the recesses, respectively. Korean Utility Model No. 20-0301227 discloses a functional shoe in which a recess is formed at the outer sole of the shoe to carry a roller device having a wheel assembly. In the latter case, the wheel assembly is selectively protruded from the recess in accordance with operation of a handle so that the shoe can selectively perform the general shoe function and the roller blade function.
- In most shoe structures in which a roller blade is incorporated, as mentioned above, natural circulation of air in the shoe is carried out through air ventilation ports formed at side surfaces or the upper surface of the shoe. For this reason, the conventional shoe structures cannot obtain an effective air circulation effect, so that sweat and odor generated from the user during exercise cannot be effectively discharged from the shoe. As a result, the user may feel uncomfortable. Furthermore, when the shoe is used for a prolonged period of time, it may injure the user's foot.
- In order to solve these problems, various proposals have been made. For example, Korean Utility Model No. 20-0320268 discloses a roller blade in which ambient air is forcibly supplied into the interior of a shoe through a blower using the rotating force of wheels of the roller blade. Also, Korean Utility Model No. 20-0314254 discloses a structure in which air ventilation ports are formed at a chassis mounted to the outer sole of a shoe to supply air into the interior of the shoe.
- In the former air ventilation structure, however, there is a difficulty in molding and assembling processes because a separate blower is mounted to the bracket of the roller blade, and the transmission of the rotating force is achieved through connecting means such as a belt, chain, or gears mounted to the shafts of the wheels. Furthermore, an increase in manufacturing costs occurs because a number of elements must be used.
- In the latter air ventilation structure, it is possible to reduce the manufacturing costs because the structure is relatively simple, as compared to the former case. However, there is a degradation in air supply effect because ambient air is naturally circulated into the interior of the shoe through the air ventilation ports formed at the chassis.
- The present invention has been made in view of the above-mentioned problems, and it is an object to provide an air supply device of a shoe with wheels which includes a frictional roller mounted to an outer sole of the shoe between adjacent ones of the wheels, air sucking means provided at opposite ends of a shaft extending laterally through the frictional roller to continuously supply ambient air into the interior of the shoe during rotation of the wheels, irrespective of the rotation direction of the wheels, so that the air supply device can eliminate uncomfortableness caused by sweat and odor generated from the user in the interior of the shoe, to maintain the interior of the shoe in a pleasant state, thereby helping the user's foot health.
- In accordance with one aspect, the present invention provides an air supply device of a wheel-mounted shoe comprising: a fixed plate mounted to a lower surface of a top plate portion of a bracket fixed to an outer sole of the wheel-mounted shoe by fixing members; a housing coupled to the fixed plate such that the housing is vertically movable while being elastically supported by an elastic member; a frictional roller rotatably coupled to the housing by a shaft such that the frictional roller is in close contact with a circumferential surface of at least one of wheels rotatably mounted to the bracket; air sucking means to suck ambient air in when the frictional roller rotates; and air ventilation means to supply the air sucked in by the air sucking means into the interior of the shoe.
- The fixed plate may have a guide member formed at a lower surface of the fixed plate. The guide member may have a pair of legs defining a recess therein so that the guide member is coupled with the housing. The legs of the guide member may be provided with stoppers formed at respective lower ends of the legs to prevent the housing coupled to the guide member from being separated from the guide member.
- A spring may be interposed between the fixed plate and the housing. The housing may have a flange formed at a peripheral edge of an upper end of the housing to prevent the housing from being separated from the guide member in a state of being coupled with the guide member, and a spring receiving recess formed at an upper portion of the housing to receive the spring. The housing may have a roller receiving hole centrally formed at a lower portion of the housing to receive the frictional roller such that the frictional roller is fitted around the shaft in the roller receiving hole.
- The air sucking means may comprise: two sets of blades mounted to opposite ends of the shaft, respectively; casings provided at the lower portion of the housing to circumferentially surround respective sets of the blades; and caps fitted around respective outer ends of the casings. An air outlet may be formed at a portion of a circumferential wall of each casing to discharge air sucked into the casing in accordance with rotation of the blades received in the casing. An air inlet may be formed at a central portion of each cap to allow ambient air to be sucked into the interior of an associated one of the casings in accordance with the rotation of the blades received in the associated casing. The sets of the blades may be mounted to respective ends of the shaft such that the blade sets rotate in opposite directions, respectively.
- The air ventilation means may comprise: first connecting members respectively connected to the air outlets of the casings provided at the lower portion of the housing; air tubes respectively connected to the first connecting members; a second connecting member connected to the air tubes to unify air flows respectively discharged from the air tubes; and an air supply tube connected to the second connecting member to communicate the second connecting member and the interior of the shoe, and thus, to supply the air discharged from the second connecting member into the interior of the shoe. Each of the first connecting members may have a cylindrical tube structure in which a central portion of the structure has a diameter smaller than opposite ends of the structure. The second connecting member may include branched tubes forming one portion of the second connecting member to be connected with the air tubes, respectively, and a unified tube forming the other portion of the second connecting member to unify air flows respectively discharged from the air tubes and then to discharge the unified air into the air supply tube.
- A cut-off valve may be mounted in the second connecting member such that the cut-off valve is hingable about a hinge to selectively open one of the branched tubes while closing the other branched tube. The hinging operation of the cut-off valve about the hinge may be achieved by air discharged from one of the air tubes. A stopper may be provided at each branched tube to limit a hinging angle of the cut-off valve.
- In accordance with another aspect, the present invention provides an air supply device of a wheel-mounted shoe comprising: a fixed plate mounted to a lower surface of a top plate portion of a bracket fixed to an outer sole of the wheel-mounted shoe by fixing members, and provided with a pair of guide rods respectively mounted with springs; a moving plate elastically mounted to the fixed plate in a state of being fitted around the guide rods such that the moving plate is vertically movable, the moving plate being provided with a freely-rotatable hollow shaft mounted to a lower portion of the moving plate; a frictional roller fixedly mounted on the shaft such that the frictional roller is in close contact with a circumferential surface of at least one of wheels rotatably mounted to the bracket; air sucking means to suck ambient air in when the frictional roller rotates; and air ventilation means to supply the air sucked in by the air sucking means into the interior of the shoe through the shaft.
- The air sucking means may comprise a casing formed at a portion of a circumferential surface of the shaft positioned in a recess formed at the frictional roller, and provided with an air inlet. Alternatively, the air sucking means may comprise a casing formed at one end of the shaft, and provided with an air inlet.
- The air ventilation means may comprise: a through hole formed at the shaft to communicate with the air sucking means; an air passage defined in the shaft to communicate with the air sucking means via the through hole; a box-shaped connector provided at one end of the shaft, and connected with the air passage at one side wall of the connector; and an elongated tube connected to a top wall of the connector while extending to the interior of the shoe through the outer sole of the shoe to supply, into the interior of the shoe, air introduced into the connector.
- Seal members may be fitted around an end of the shaft and an end of the elongated tube connected with the connector, while being retained by support plates mounted to the connector, respectively, to prevent leakage of air.
- A cut-off valve may be mounted between the connector and the elongated tube to forcibly cut off flow of air.
- The present invention provides an effect of eliminating uncomfortableness caused by sweat and odor generated from the user in the interior of the shoe, to maintain the interior of the shoe in a pleasant state, thereby helping the user's foot health by mounting the frictional roller to the outer sole of the shoe between adjacent ones of the wheels, and providing the air sucking means at opposite ends of the shaft extending laterally through the frictional roller to continuously supply ambient air into the interior of the shoe during rotation of the wheels, irrespective of the rotation direction of the wheels.
- The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
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FIG. 1 is a side view illustrating the configuration of a general in-line skate; -
FIG. 2 is a schematic view illustrating an air supply device of a shoe with wheels in accordance with a preferred embodiment of the present invention; -
FIGS. 3 and 4 are sectional and side views of the air supply device shown inFIG. 2 , respectively; -
FIG. 5 is a sectional view illustrating a state in which air is sucked by air sucking means according to the illustrated embodiment of the present invention; -
FIG. 6 is a schematic view illustrating an air flow caused by the air sucking means according to the illustrated embodiment of the present invention; -
FIGS. 7 and 8 are sectional views showing the inner structure of a second connecting member; -
FIGS. 9 and 10 are schematic views showing functional relation between a frictional roller and wheels; -
FIG. 11 is a schematic view illustrating an air supply device according to another embodiment of the present invention; -
FIGS. 12 and 13 are sectional views illustrating functional relation between a frictional roller and a connecting member shown inFIG. 11 , respectively; -
FIG. 14 is an enlarged sectional view showing a connecting structure for the connector, shaft and elongated tube shown inFIG. 11 ; and -
FIG. 15 is a schematic view illustrating an air supply device according to another embodiment of the present invention, which includes a hollow shaft, and a frictional roller and a casing mounted on the hollow shaft which are modified versions of those ofFIG. 11 . - Hereinafter, preferred embodiments of the present invention will be described with reference to the annexed drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
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FIG. 2 is a schematic view illustrating an air supply device of a shoe with wheels in accordance with a preferred embodiment of the present invention. - As show in
FIG. 2 , the wheel-mountedshoe 10, in which the air supply device according to the illustrated embodiment of the present invention is provided, includes abracket 11 attached to an outer sole of theshoe 10, a plurality ofwheels 12 rotatably fitted aroundshafts 13 mounted to thebracket 11 in a longitudinally-aligned state, respectively, and abrake 14 mounted to a rear end of thebracket 11. The air supply device, which is adapted to supply air into the interior of the shoe, is interposed between adjacent ones of thewheels 12. The air supply device communicates with the interior of theshoe 10. - As shown in
FIG. 2 , the air supply device, which is adapted to supply air into the interior of the wheel-mountedshoe 10 having the above-described configuration, includes: a fixedplate 15 mounted to the lower surface of a top plate portion of thebracket 11 by means of fixingmembers 15 a; ahousing 20 coupled to the fixedplate 15 such that thehousing 20 is vertically movable while being elastically supported by anelastic member 23; africtional roller 32 rotatably coupled to thehousing 20 by ashaft 29 such that thefrictional roller 32 is in close contact with the circumferential surfaces of the associatedwheels 12; air sucking means to suck ambient air in when thefrictional roller 32 rotates; and air ventilation means to supply the air sucked in by the air sucking means into the interior of theshoe 10. - The configuration of the air supply device according to the illustrated embodiment of the present invention will be described in more detail with reference to
FIG. 2 . - The fixed
plate 15 has a flat plate shape, and is mounted to the lower surface of the top plate portion of thebracket 11 fixed to the outer sole of theshoe 10. In particular, aguide member 16 is formed at the lower surface of the fixedplate 15. Theguide member 16 has a pair of legs defining a recess therein so that theguide member 16 is coupled with thehousing 20.Stoppers 17 are formed at respective lower ends of the legs of theguide member 16 in order to prevent thehousing 20 coupled to theguide member 16 from being separated from theguide member 16. - The
housing 20 has an upper portion having a rectangular cross-section while having an upper end formed with aflange 21 at a peripheral edge thereof to prevent thehousing 20 from being separated from theguide member 16 in a state of being coupled with theguide member 16. Thehousing 20 also has a cylindrical lower portion to provide a pair ofcasings 25. Aroller receiving hole 24 is formed at a central portion of thehousing 20 between thecasings 25 to receive thefrictional roller 32 such that thefrictional roller 32 is fitted around theshaft 29 in theroller receiving hole 24.Bearings 30 are mounted in thecasings 25 of thehousing 20 such that thebearings 30 are fitted around opposite ends of theshaft 29, respectively, to allow theshaft 29 to rotate freely.Blades 29 a are mounted to each end of theshaft 29. Theblades 29 a are received in thecasings 25, respectively. As the elastic member, aspring 23 is interposed between the fixedplate 15 and thehousing 20. Thehousing 20 is elastically supported by thespring 23 in a vertically-movable state. Aspring receiving recess 22 is formed at the upper portion of thehousing 20 to receive thespring 23. - In particular, the
frictional roller 32, which is received in theroller receiving hole 24 of thehousing 20, is interposed between adjacent ones of thewheels 12 fitted aroundrespective shafts 13 fixed to thebracket 11. Thefrictional roller 32 is in close contact with the circumferential surfaces of the associatedwheels 12, so that thefrictional roller 32 receives the rotating force of thewheels 12, and thus, rotates in a certain direction. -
FIGS. 3 and 4 are sectional and side views of the air supply device shown inFIG. 2 , respectively.FIG. 5 is a sectional view illustrating a state in which air is sucked by the air sucking means according to the illustrated embodiment of the present invention.FIG. 6 is a schematic view illustrating an air flow caused by the air sucking means according to the illustrated embodiment of the present invention. - As described above, the air supply device includes the air sucking means to suck ambient air in when the
frictional roller 32 rotates, and the air ventilation means to supply the air sucked in by the air sucking means into the interior of theshoe 10. Referring toFIG. 3 , the air sucking means is arranged at opposite lateral ends of the lower portion of thehousing 20, that is, at opposite sides of theroller receiving hole 24, to suck ambient air in during rotation of thefrictional roller 32. The air sucking means comprises: two sets ofblades 29 a mounted to respective ends of theshaft 29; thecasings 25 provided at the lower portion of thehousing 20 to circumferentially surround respective sets of theblades 29 a; and caps 27 fitted around respective outer ends of thecasings 25. - An
air outlet 26 is formed at a portion of a circumferential wall of eachcasing 25 to discharge air sucked into thecasing 25 in accordance with rotation of theblades 29 a received in thecasing 25. Anair inlet 28 is formed at a central portion of eachcap 27 to allow ambient air to be sucked into the interior of the associatedcasing 25 in accordance with the rotation of the associatedblades 29 a. The sets of theblades 29 a are mounted to respective ends of theshaft 29 such that the blade sets rotate in opposite directions, respectively. Accordingly, the sets of theblades 29 a can continuously suck ambient air in, irrespective of the rotation direction of thewheels 12. - Referring to FIGS. 4 to 6, the air ventilation means comprises: first connecting
members 34 respectively connected to theair outlets 26 of thecasings 25 provided at the lower portion of thehousing 20;air tubes 35 respectively connected to the first connectingmembers 34; a second connectingmember 36 connected to both theair tubes 35 to unify air flows respectively discharged from theair tubes 35; and anair supply tube 42 connected to the second connectingmember 36 to communicate the second connectingmember 36 and the interior of theshoe 10 so as to supply the air discharged from the second connectingmember 36 into the interior of theshoe 10. - Each first connecting
member 34 has a cylindrical tube structure in which the central portion has a diameter smaller than that of the opposite ends. The first connectingmember 34 is connected between theair outlet 26 of the associatedcasing 25 and the associatedair tube 35. - The second connecting
member 36 has a Y-shaped structure including branchedtubes 37 forming one portion of the second connectingmember 36 to be connected withrespective air tubes 35, and aunified tube 40 forming the other portion of the second connectingmember 36 to unify air flows respectively discharged from theair tubes 35 and then to discharge the unified air into theair supply tube 42. -
FIGS. 7 and 8 are sectional views showing the inner structure of the second connectingmember 36.FIGS. 9 and 10 are schematic views showing functional relation between the wheels and the frictional roller. - Referring to
FIGS. 7 and 8 , a cut-offvalve 39 is mounted in the second connectingmember 36 at a region where the branchedtubes 37 respectively connected with theair tubes 35 are connected to theunified tube 40. The cut-offvalve 39 is hingable about ahinge 38 to selectively open one of the branchedtubes 37 while closing the otherbranched tube 37. In the illustrated case, the hinging operation of the cut-offvalve 39 about thehinge 38 is achieved by air discharged from one of theair tubes 35. Astopper 37 a is provided at a downstream end of eachbranched tube 37 to limit the hinging angle of the cut-offvalve 39 and to completely seal the branchedtube 37 in cooperation with the cut-offvalve 39. - The air supply device, which has the above-described configuration in accordance with the illustrated embodiment of the present invention, can continuously supply ambient air into the interior of the
shoe 10 during forward or backward movement of the user in a state of wearing a roller blade or in-line skate ofFIG. 1 , to which the air supply device is applied, irrespective of the rotation direction of thewheels 12, as shown inFIGS. 9 and 10 . - Although the air supply device is interposed between selected adjacent ones of the
wheels 12 in the illustrated embodiment, the air supply device may be arranged over a selected one of thewheels 12 such that thefrictional roller 32 is in close contact with the selectedwheel 12. Of course, the same function as that of the above-described case is obtained in this case. - Now, operation of the air supply device according to the above-described embodiment of the present invention will be described.
- When the user moves in a state of wearing the wheel-mounted
shoe 10, that is, the roller blade or in-line skate ofFIG. 1 , to which the air supply device having the above-described configuration is applied, thewheels 12 mounted onrespective shafts 13 of thebracket 11 are rotated. As a result, thefrictional roller 32, which is elastically in close contact with the associatedwheels 12 between the associatedwheels 12, is rotated together with theshaft 29 mounted in theroller receiving hole 24 of thehousing 20. - When the
shaft 29 rotates together with thefrictional roller 32 in accordance with the rotating force of thewheels 12, theblades 29 a arranged in thecasings 25 of thehousing 20 are rotated. In accordance with the rotation of theblades 29 a, ambient air is sucked into the interior of a selected one of thecasings 25 through theair inlet 28 formed at the central portion of thecap 27 fitted around the selectedcasing 25 because the blade sets of thecasings 25 rotate in opposite directions, respectively. Subsequently, the ambient air sucked into the selectedcasing 25 is discharged into the first connectingmember 34 connected to theair outlet 26 of thecasing 25, and is then discharged into theunified tube 40 after passing through the second connectingmember 36 connected to the first connectingmember 34, that is, the branchedpipe 37 connected to the first connectingmember 34, as shown inFIG. 7 . At this time, by the air passing through the branchedpipe 37, the cut-offvalve 39 is hinged toward the otherbranched pipe 37, so that the branchedpipe 37, through which the air passes, is opened to communicate with theunified tube 40. - The air discharged into the
unified tube 40 is then supplied into the interior of theshoe 10 via theair supply tube 42 connected between theunified tube 40 and the interior of theshoe 10. - The cut-off
valve 39, which is hingable about thehinge 38 in the second connectingmember 36, is always maintained at a position opposite to the path, along which the sucked air flows. In the above-described case, the cut-offvalve 39 comes into close contact with thestopper 37 a of the otherbranched pipe 37, so that the air flowing from the opened branchedpipe 37 toward theunified tube 40 cannot be introduced into the otherbranched tube 37. - Since the sets of the
blades 29 a respectively mounted in thecasings 25 of thehousing 20 have opposite mounting directions, ambient air is continuously supplied into the interior of theshoe 10 via one of thecasings 25 and the air ventilation means, irrespective of the rotation direction of thewheels 12. - That is, although the
wheels 12 are rotated in a forward or reverse direction when the user moves in a state of wearing the roller blade or in-line skate, one of the parts of the air sucking means respectively provided at opposite sides of thehousing 20, operates in accordance with the rotation direction of thewheels 12. Thus, ambient air can be continuously supplied into the interior of theshoe 10. - [Mode for Invention]
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FIG. 11 is a schematic view illustrating an air supply device according to another embodiment of the present invention.FIGS. 12 and 13 are sectional views illustrating functional relation between a frictional roller and a connecting member shown inFIG. 11 , respectively. - As show in
FIG. 11 , the air supply device according to the second embodiment of the present invention includes: afixed plate 115 mounted to the lower surface of the top plate portion of thebracket 11 fixed to the outer sole of the wheel-mountedshoe 10 by means of fixingmembers 115 a, and provided with a pair ofguide rods 116 respectively mounted withsprings 118; a movingplate 120 elastically mounted to the fixedplate 115 in a state of being fitted around theguide rods 116 such that the movingplate 120 is vertically movable, the movingplate 120 being provided, at a lower portion thereof, with a freely-rotatablehollow shaft 121; africtional roller 125 fixedly mounted on theshaft 121 such that thefrictional roller 125 is in close contact with the circumferential surface of a selected one of thewheels 12; air sucking means to suck ambient air in when thefrictional roller 125 rotates; and air ventilation means to supply the air sucked in by the air sucking means into the interior of theshoe 10 through theshaft 121. - The configuration of the air supply device according to the illustrated embodiment of the present invention will be described in more detail with reference to
FIG. 11 . - In accordance with this embodiment, the air supply device is configured to supply air into the interior of the
shoe 10 by arranging thefrictional roller 125 to be elastically in close contact with the circumferential surface of a selected one of thewheels 12 freely rotatably mounted to the outer sole of theshoe 10, and providing the air sucking means and air ventilation means at the hollow shaft to rotate together with thefrictional roller 125, and thus, to supply ambient air into a front portion of the interior of theshoe 10. - Referring to
FIGS. 11 and 12 ,shafts 13 are freely rotatably mounted to thebracket 11 fixed to the outer sole of theshoe 10. Thewheels 12 are fixedly mounted on theshafts 13, respectively, such that they rotate simultaneously. - The fixed
plate 115 has a flat plate shape, and is mounted to the lower surface of the top plate portion of thebracket 11 by means of the fixingmembers 115 a Theguide rods 116 are provided at the lower surface of the fixedplate 115 while being mounted with thesprings 118, respectively. - The moving
plate 120 has an inverted-U-shaped structure, and is elastically mounted to theguide rods 116 of the fixedplate 115 such that the movingplate 120 is always downwardly urged away from the fixedplate 115 by thesprings 118. Thehollow shaft 121 is freely rotatably mounted to the lower portion of the movingplate 120. Thefrictional roller 125 is fixedly mounted on a central portion of thehollow shaft 121 such that thefrictional roller 125 is in close contact with the circumferential surface of the associatedwheel 12. - A
recess 126 is formed at one side of thefrictional roller 125. The air sucking means is arranged on a portion of theshaft 121 positioned in therecess 126 to suck ambient air in during rotation of theshaft 121. - The air sucking means comprises a
casing 127 formed at a portion of the circumferential surface of theshaft 121 positioned in therecess 126 of thefrictional roller 125, and provided with anair inlet 128, and aguide plate 129 mounted to theshaft 121 in therecess 126 to guide a flow of air generated in accordance with rotation of thefrictional roller 125, and thus, theshaft 121, toward thecasing 127. - When the
wheels 12 are rotated in accordance with travel of the roller blade, thefrictional roller 125 andshaft 121 are simultaneously rotated, thereby causing ambient air to be naturally sucked into thecasing 127. Accordingly, theguide plate 129 may be dispensed with. - As shown in
FIG. 13 , the air ventilation means is arranged at one side of the air sucking means so that the ambient air sucked into thecasing 127 is supplied into the interior of theshoe 10. - The air ventilation means comprises a through
hole 122 formed at a portion of theshaft 121 to communicate with thecasing 127, anair passage 122 defined in theshaft 121 to communicate with thecasing 127 via the throughhole 122, and a box-shapedconnector 130 provided at one end of theshaft 121, and connected, at one side wall thereof, with theair passage 123. - The air ventilation means further comprises an
elongated tube 131 connected to a top wall of theconnector 130 while extending to a front portion of the interior of theshoe 10 through the outer sole of theshoe 10 to supply, into the interior of theshoe 10, the air introduced into theconnector 130. -
FIG. 14 is an enlarged sectional view showing a connecting structure for the connector, shaft and elongated tube shown inFIG. 11 . - Referring to
FIG. 14 ,seal members 132, which have a general structure such as an O-ring or oil seal, are fitted around the ends of theshaft 121 andelongated tube 131 connected with theconnector 130, while being retained bysupport plates 133 mounted to theconnector 130, respectively, to prevent leakage of air. - A cut-off
valve 135 is mounted between theconnector 130 and theelongated tube 131 or in theelongated tube 131 to forcibly cut off the supply of ambient air into the shoe, if necessary. -
FIG. 15 is a schematic view illustrating an air supply device according to another embodiment of the present invention, which includes a hollow shaft, and a frictional roller and a casing mounted on the hollow shaft which are modified versions of those ofFIG. 11 . - Referring to
FIG. 15 , africtional roller 225 is mounted on a central portion of ahollow shaft 221, as in the case ofFIG. 11 . Acasing 227, which has anair inlet 228, is mounted to one end of theshaft 221. - In this case, a through
hole 222 is formed at a portion of theshaft 221, to which thecasing 227 is mounted. Anair passage 223 extends throughout theshaft 221 to communicate with thecasing 227 via the throughhole 222. - Now, operation of the air supply device according to the above-described embodiment of the present invention will be described.
- When the user moves in a state of wearing the wheel-mounted
shoe 10, that is, the roller blade or in-line skate ofFIG. 1 , to which the air supply device having the above-described configuration is applied, the shafts mounted to thebracket 11 are rotated together with thewheels 12. As a result, thefrictional roller 125, which is in close contact with the circumferential surface of the associatedwheel 12, is rotated together with theshaft 121. - Accordingly, ambient air is sucked into the
casing 127 mounted on theshaft 121 in therecess 126 of thefrictional roller 125 in accordance with the rotating force of thecasing 127 and an operation of theguide plate 129 to guide the flow of air, as shown inFIG. 12 . The sucked air is then introduced into theconnector 130 connected to one end of theshaft 121 via the throughhole 122 andair passage 123 formed at theshaft 121. - Subsequently, the air introduced into the
connector 130 is supplied into the front portion of the interior of theshoe 10 via theelongated tube 131 connected to the upper wall of theconnector 130, as shown inFIG. 13 . - At this time, leakage of air is prevented by the
seal members 132 fitted around the ends of theshaft 121 andelongated tube 131 connected to theconnector 130, as shown inFIG. 14 . - When it is desired to cut off introduction of air into the interior of the
shoe 10, for example, in winter, this can be achieved by closing the cut-offvalve 135 mounted in theelongated tube 131 or between theconnector 130 and theelongated duct 131. - It is to be noted that the
guide plate 129 mounted to theshaft 121 to guide the flow of air and the cut-offvalve 135 mounted in theelongated tube 131 are not elements essentially required to implement the present invention. Even when these elements are dispensed with, the air sucked into thecasing 127 can be supplied into the interior of theshoe 10. - The introduction of air into the
shoe 10 may be cut off without using the cut-offvalve 135, by configuring theconnector 130 to be movable along theshaft 121, and thus, to be selectively disconnected from theair passage 123. In particular, theshaft 121 andelongated tube 131 may be directly connected without using theconnector 130. - Similarly, in the case in which the
frictional roller 225 is mounted on the central portion of thehollow shaft 221, and thecasing 227 is mounted to one end of theshaft 221, ambient air is sucked into theair inlet 228 of thecasing 227 in accordance with rotation of theshaft 221, and is then supplied into the interior of theshoe 10 via the throughhole 222 andair passage 223 of theshaft 221. - Although the present invention has been described in conjunction with embodiments in which the present invention is applied to a general roller blade or in-line skate, the air supply device of the present invention can be easily applied to a shoe in which wheels are mounted to a bracket fixed to the outer sole of the shoe, or a shoe in which wheels are retractably mounted to the outer sole of the shoe. In such cases, the same function and effect as in the above-described case are obtained.
- As apparent from the above description, the air supply device of the wheel-mounted shoe according to the present invention can supply ambient air into the interior of the shoe by continuously suck the ambient air in by use of the rotating force of the frictional roller interposed between adjacent ones of the wheels rotatably mounted to the bracket of the outer sole of the shoe, irrespective of the rotating direction of the wheels. Accordingly, the air supply device eliminates uncomfortableness caused by sweat and odor generated from the user in the interior of the shoe, to maintain the interior of the shoe in a pleasant state, thereby helping the user's foot health.
- In addition, the air supply device of the wheel-mounted shoe according to the present invention can be easily applied to a general roller blade or in-line skate.
Claims (24)
1. An air supply device of a wheel-mounted shoe comprising:
a fixed plate mounted to a lower surface of a top plate portion of a bracket fixed to an outer sole of the wheel-mounted shoe by fixing members;
a housing coupled to the fixed plate such that the housing is vertically movable while being elastically supported by an elastic member;
a frictional roller rotatably coupled to the housing by a shaft such that the frictional roller is in close contact with a circumferential surface of at least one of wheels rotatably mounted to the bracket;
air sucking means to suck ambient air in when the frictional roller rotates; and
air ventilation means to supply the air sucked in by the air sucking means into the interior of the shoe.
2. The air supply device according to claim 1 , wherein the fixed plate has a guide member formed at a lower surface of the fixed plate, the guide member having a pair of legs defining a recess therein so that the guide member is coupled with the housing.
3. The air supply device according to claim 2 , wherein the legs of the guide member are provided with stoppers formed at respective lower ends of the legs to prevent the housing coupled to the guide member from being separated from the guide member.
4. The air supply device according to claim 1 , wherein a spring is interposed between the fixed plate and the housing.
5. The air supply device according to claim 4 , wherein the housing has a flange formed at a peripheral edge of an upper end of the housing to prevent the housing from being separated from the guide member in a state of being coupled with the guide member, and a spring receiving recess formed at an upper portion of the housing to receive the spring.
6. The air supply device according to claim 1 , wherein the housing has a roller receiving hole centrally formed at a lower portion of the housing to receive the frictional roller such that the frictional roller is fitted around the shaft in the roller receiving hole.
7. The air supply device according to claim 1 , wherein the air sucking means is arranged at opposite sides of the lower portion of the housing to suck ambient air in when the frictional roller rotates.
8. The air supply device according to claim 1 , wherein the air sucking means comprises:
two sets of blades mounted to opposite ends of the shaft, respectively;
casings provided at the lower portion of the housing to circumferentially surround respective sets of the blades; and
caps fitted around respective outer ends of the casings.
9. The air supply device according to claim 8 , wherein an air outlet is formed at a portion of a circumferential wall of each casing to discharge air sucked into the casing in accordance with rotation of the blades received in the casing.
10. The air supply device according to claim 8 , wherein an air inlet is formed at a central portion of each cap to allow ambient air to be sucked into the interior of an associated one of the casings in accordance with the rotation of the blades received in the associated casing.
11. The air supply device according to claim 8 , wherein the sets of the blades are mounted to respective ends of the shaft such that the blade sets rotate in opposite directions, respectively.
12. The air supply device according to claim 8 , wherein the air ventilation means comprises:
first connecting members respectively connected to the air outlets of the casings provided at the lower portion of the housing;
air tubes respectively connected to the first connecting members;
a second connecting member connected to the air tubes to unify air flows respectively discharged from the air tubes; and
an air supply tube connected to the second connecting member to communicate the second connecting member and the interior of the shoe, and thus, to supply the air discharged from the second connecting member into the interior of the shoe.
13. The air supply device according to claim 12 , wherein each of the first connecting members has a cylindrical tube structure in which a central portion of the structure has a diameter smaller than opposite ends of the structure.
14. The air supply device according to claim 12 , wherein the second connecting member includes branched tubes forming one portion of the second connecting member to be connected with the air tubes, respectively, and a unified tube forming the other portion of the second connecting member to unify air flows respectively discharged from the air tubes and then to discharge the unified air into the air supply tube.
15. The air supply device according to claim 14 , wherein a cut-off valve is mounted in the second connecting member such that the cut-off valve is hingable about a hinge to selectively open one of the branched tubes while closing the other branched tube.
16. The air supply device according to claim 15 , wherein the hinging operation of the cut-off valve about the hinge is achieved by air discharged from one of the air tubes.
17. The air supply device according to claim 15 , wherein a stopper is provided at each branched tube to limit a hinging angle of the cut-off valve.
18. The air supply device according to claim 1 , wherein the frictional roller is interposed between adjacent ones of the wheels rotatably mounted to the bracket.
19. An air supply device of a wheel-mounted shoe comprising:
a fixed plate mounted to a lower surface of a top plate portion of a bracket fixed to an outer sole of the wheel-mounted shoe by fixing members, and provided with a pair of guide rods respectively mounted with springs;
a moving plate elastically mounted to the fixed plate in a state of being fitted around the guide rods such that the moving plate is vertically movable, the moving plate being provided with a freely-rotatable hollow shaft mounted to a lower portion of the moving plate;
a frictional roller fixedly mounted on the shaft such that the frictional roller is in close contact with a circumferential surface of at least one of wheels rotatably mounted to the bracket;
air sucking means to suck ambient air in when the frictional roller rotates; and
air ventilation means to supply the air sucked in by the air sucking means into the interior of the shoe through the shaft.
20. The air supply device according to claim 19 , wherein the air sucking means comprises a casing formed at a portion of a circumferential surface of the shaft positioned in a recess formed at the frictional roller, and provided with an air inlet.
21. The air supply device according to claim 19 , wherein the air sucking means comprises a casing formed at one end of the shaft, and provided with an air inlet.
22. The air supply device according to claim 19 , wherein the air ventilation means comprises:
a through hole formed at the shaft to communicate with the air sucking means;
an air passage defined in the shaft to communicate with the air sucking means via the through hole;
a box-shaped connector provided at one end of the shaft, and connected with the air passage at one side wall of the connector; and
an elongated tube connected to a top wall of the connector while extending to the interior of the shoe through the outer sole of the shoe to supply, into the interior of the shoe, air introduced into the connector.
23. The air supply device according to claim 22 , wherein seal members are fitted around an end of the shaft and an end of the elongated tube connected with the connector, while being retained by support plates mounted to the connector, respectively, to prevent leakage of air.
24. The air supply device according to claim 23 , wherein a cut-off valve is mounted between the connector and the elongated tube to forcibly cut off flow of air.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20-2003-0027815U KR200333094Y1 (en) | 2003-08-29 | 2003-08-29 | A air supply device of Shoes with retractable wheels |
KR20-2003-0027815 | 2003-08-29 | ||
KR20-2004-0009070U KR200354197Y1 (en) | 2004-04-01 | 2004-04-01 | A air supply device of Shoes with retractable wheels |
KR20-2004-0009070 | 2004-04-01 | ||
PCT/KR2004/002154 WO2005020736A1 (en) | 2003-08-29 | 2004-08-27 | A air supply device of shoes with retractable wheels |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060279049A1 true US20060279049A1 (en) | 2006-12-14 |
Family
ID=34277786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/569,746 Abandoned US20060279049A1 (en) | 2003-08-29 | 2004-08-27 | Air supply device of shoes with retractable wheels |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060279049A1 (en) |
CN (1) | CN1845686A (en) |
WO (1) | WO2005020736A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108939520A (en) * | 2018-08-26 | 2018-12-07 | 沈明慧 | Use more flexible slide plate |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107670266B (en) * | 2017-11-13 | 2019-04-16 | 广东森海运动用品有限公司 | Deodorization ice skate |
CN107823872B (en) * | 2017-11-13 | 2019-04-19 | 新昌县焕宏农业有限公司 | Efficient deodorization of water ice skate |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5390941A (en) * | 1991-09-06 | 1995-02-21 | Nordica S.P.A. | Power generator device particularly for wheeled sports implements |
US5401039A (en) * | 1993-06-28 | 1995-03-28 | Wolf; David | Ventilated in-line roller skate |
US5458348A (en) * | 1994-09-13 | 1995-10-17 | Hi Star Co., Ltd. | Ventilating skate |
US6629698B2 (en) * | 2001-10-03 | 2003-10-07 | Wei-Yen Chu | Multifunctional shoe |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5171033A (en) * | 1990-07-03 | 1992-12-15 | Rollerblade, Inc. | Ventilated boot and in-line roller skate with the same |
FR2742064B1 (en) * | 1995-12-08 | 1998-01-09 | Salomon Sa | WHEEL SKATE |
KR200320268Y1 (en) * | 2003-04-19 | 2003-07-16 | 이영석 | Fan Roller Shoe |
-
2004
- 2004-08-27 US US10/569,746 patent/US20060279049A1/en not_active Abandoned
- 2004-08-27 WO PCT/KR2004/002154 patent/WO2005020736A1/en active Application Filing
- 2004-08-27 CN CNA2004800249447A patent/CN1845686A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5390941A (en) * | 1991-09-06 | 1995-02-21 | Nordica S.P.A. | Power generator device particularly for wheeled sports implements |
US5401039A (en) * | 1993-06-28 | 1995-03-28 | Wolf; David | Ventilated in-line roller skate |
US5458348A (en) * | 1994-09-13 | 1995-10-17 | Hi Star Co., Ltd. | Ventilating skate |
US6629698B2 (en) * | 2001-10-03 | 2003-10-07 | Wei-Yen Chu | Multifunctional shoe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108939520A (en) * | 2018-08-26 | 2018-12-07 | 沈明慧 | Use more flexible slide plate |
Also Published As
Publication number | Publication date |
---|---|
WO2005020736A1 (en) | 2005-03-10 |
CN1845686A (en) | 2006-10-11 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |