Shoe Sole Combined with Air Chamber and Air Valve
A shoe sole for a shoe comprises: an air chamber formed of a resilient material and defining an inner space for receiving air therein; an air valve coupled to the air chamber; and a sole member formed of a resilient material and coupled with the air chamber, the sole member enclosing a substantially entire outer surface of the air chamber except some portions of the air chamber and the air valve such that a wearer of the shoe can selectively open and close the air valve to adjust an air pressure of the air chamber, and thus, to adjust an air cushioning degree of the shoe. The air chamber can include a grooved structure on the generally planar upper and lower surfaces and on side surfaces thereof, and one or more through-holes formed through the upper and lower surfaces of the chamber, and the sole member is filled in the through-holes.
This application claims priorities of Korean Patent Application No. 10-2007-0025939, filed on Mar. 16, 2007, the entire contents of which are incorporated herein by reference.
FIELD OF THE INVENTIONThe present invention relates to a shoe sole combined with an air chamber and an air valve, and more particularly, to a shoe sole which has an air chamber formed of resilient material and an air valve combined thereto, in which a portion of the air chamber and the air valve are exposed externally and by which the wearer of the shoe can adjust a cushioning degree of the shoe by adjusting or controlling the air valve according to the user's desire or selection or in consideration of the user's weight.
BACKGROUND OF THE INVENTIONVarious shoe soles with cushioning effects are introduced in the art. For instance, a shoe sole can utilize a spring-activated cushion in the sole and an air bag or air chamber coupled with the shoe sole. Such air bags can provide cushioning effects or they can optionally provide cooling effects and/or air circulations to the shoes, and so on.
However, one known drawback associated in the prior art shoe sole is that such air bags typically provide a uniform air cushion to the soles. Accordingly, the cushioning degree of the shoe sole is not adjustable by the user's selection to meet its desire or in consideration of the user's weight.
SUMMARY OF THE INVENTIONAccordingly, in order to solve the above-described and other drawbacks or problems, the present invention provides a shoe with a shoe sole, in which the shoe sole includes an air chamber formed of resilient material and an air valve combined thereto. A portion of the air chamber and the air valve are exposed externally, and thus, the wearer of the shoe can adjust a cushioning degree of the shoe by adjusting or controlling the externally-exposed air valve according to the user's desire or selection or in consideration of the user's weight. In addition, by having the shoe sole enclosing a substantially the entire outer surface of the air chamber, but leaving some of the outer surface thereof exposed externally, the appearance of the shoe may provide more artistic appeals to the wearers.
According to one aspect of the invention, the shoe sole for a shoe comprises: an air chamber formed of a resilient material and defining an inner space for receiving air therein; an air valve coupled to the air chamber; and a sole member formed of a resilient material and coupled with the air chamber, the sole member enclosing a substantially entire outer surface of the air chamber except some portions of the air chamber and the air valve such that a wearer of the shoe can selectively open and close the exposed air valve to adjust an air pressure of the air chamber, and thus, to adjust an air cushioning degree of the shoe. It is preferable that the air chamber of the shoe sole includes generally planar upper and lower surfaces and has a shape resembling a heel portion of the shoe. The air chamber preferably includes a grooved structure on the generally planar upper and lower surfaces and on side surfaces thereof. The air chamber preferably further includes at least one through-hole formed through the upper and lower surfaces of the chamber, and the sole member is filled with the through-hole.
The above described and other objects, features and advantages of the present invention will be more apparent from the presently preferred embodiments of the invention disclosed in the following description and illustrated in the accompanying drawings, in which:
With reference to
The air chamber 5 preferably resembles a heel shape of a shoe to fit in the heel portion of the shoe sole, as shown in
According to one preferred embodiment of the present invention, the air chamber 5 includes one or more through-holes 4 formed through the upper and lower surfaces of the air chamber 5, and one or more grooved channels 5-1 formed around the outer surfaces of the air chamber 5, preferably including the upper, lower and side surfaces thereof. The through-holes 4 and the grooved channels 5-1 are preferably overlaid as shown in
According to one preferred embodiment of the present invention, the air chamber 5 is tightly and unitarily coupled with the sole member 6. As shown in
The air chamber 5 is formed of a resilient resin, rubber, or any other suitable elastic material with a sufficient strength and durability under a repeating and extended load condition. In one preferred embodiment, the air chamber 5 is formed of a polymer of a vinyl compound. The sole member 6 is formed of a resin, rubber, or any other suitable sole material. In order to allow the air chamber 5 to deform elastically, the enclosing sole member 6 should preferably be formed of a relatively resilient material, rather than a hard material.
Referring to
The shoe sole member 6 may preferably include a plurality of cavities or grooves 6-1 disposed between the sole member and the outer sole 13. These cavities 6-1 can enhance the cushioning effects and provide comfortable feelings to the wearer of the shoe 12. The element 11 not described above depicts an upper 11 of the shoe 12.
As described above, the shoe 12 comprises a shoe sole which includes a partially exposed, elastic air chamber 5 and an exposed air valve 1. The air valve 1 is preferably an on-off control pneumatic valve for selectively controlling the valve between the on and off positions by the user. With the air valve 1, the wearer can adjust the air pressure of the air chamber 5 to a level of its choice. In order to increase the air pressure in the air chamber 5, the valve 1 is opened by the user and a compressed air is provided through the valve 1 into the air chamber. After reaching a desired level of the air pressure, the user can switch and leave the air valve 1 in a closed position, and the air of desired pressure is kept within the air chamber 5 and provides the cushioning effect to the shoe. Likewise, the wearer can freely adjust the air pressure level of the air chamber of the shoe sole, utilizing the externally exposed valve 1 and connecting to a source of compressed air. The manner of providing a compressed air is well known in the art. For example, it can be in the same manner to pressurize a pneumatic tire of an automobile by connecting a compressed air source, or can be in the same manner as pressurizing a tire of a bike through a manual pumping operation with a pneumatic pump.
As described above, the shoe sole of the present invention have a user-controllable air valve exposed externally, and thus, the wearer of the shoe can adjust a cushioning degree of the shoe by adjusting or controlling the externally-exposed air valve according to the user's desire or selection or in consideration of the user's weight. In addition, by having the shoe sole enclosing a substantially the entire outer surface of the air chamber, but leaving some of the outer surface thereof exposed externally, the appearance of the shoe may provide more artistic appeals to the wearers.
While preferred embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that many changes and modifications may be made without departing from the invention in its broader aspects. The appended claims are intended to cover, therefore, all such changes and modifications as fall within the true spirit and scope of the invention.
Claims
1. A shoe sole for a shoe, comprising:
- an air chamber formed of a resilient material and defining an inner space for receiving air therein;
- an air valve coupled to the air chamber; and
- a sole member formed of a resilient material and coupled with the air chamber, the sole member enclosing a substantially entire outer surface of the air chamber except some portions of the air chamber and the air valve such that a wearer of the shoe can selectively open and close the exposed air valve to adjust an air pressure of the air chamber, and thus, to adjust an air cushioning degree of the shoe.
2. The shoe sole of claim 1, wherein the air chamber includes generally planar upper and lower surfaces and has a shape resembling a heel portion of the shoe.
3. The shoe sole of claim 2, wherein the air chamber includes a grooved structure on the generally planar upper and lower surfaces and on side surfaces thereof.
4. The shoe sole of claim 3, wherein the air chamber further includes one or more through-holes formed through the upper and lower surfaces of the chamber, and the sole member is filled in the through-holes.
5. The shoe sole of claim 4, wherein the through-hole and the grooved structure are overlaid or in communication with each other.
6. The shoe sole of claim 1, wherein the air valve is an on-off control valve.
7. The shoe sole of claim 1, wherein the air chamber has an air port disposed at a side of the air chamber, and an air passage conduit is attached to the air port and with the air valve disposed at an end of the air passage conduit.
8. The shoe sole of claim 1, further comprising an outer sole attached at a bottom surface of the sole member.
9. The shoe sole of claim 8, wherein the outer sole has a property of reducing slippage on the shoe sole.
10. The shoe sole of claim 9, wherein a plurality of grooves are provided between the sole member and the outer sole for enhancing a cushioning effect to the shoe sole.
11. The shoe sole of claim 8, wherein the outer sole is formed of a material relatively harder than the sole member to reinforce the shoe sole or to provide an enhanced strength and durability to the shoe sole.
12. The shoe sole of claim 11, wherein a plurality of grooves are provided between the sole member and the outer sole for enhancing a cushioning effect to the shoe sole.
13. The shoe sole of claim 1, wherein the air chamber is formed of rubber material or a polymer of a vinyl compound.
Type: Application
Filed: Mar 17, 2008
Publication Date: Sep 18, 2008
Inventor: Kwang Ji Jin (Busan)
Application Number: 12/050,097
International Classification: A43B 13/20 (20060101); A43B 21/28 (20060101);