U.S. patent application number 10/115035 was filed with the patent office on 2003-10-09 for ventilation shoe.
Invention is credited to Wu, Chien-I.
Application Number | 20030188451 10/115035 |
Document ID | / |
Family ID | 29718569 |
Filed Date | 2003-10-09 |
United States Patent
Application |
20030188451 |
Kind Code |
A1 |
Wu, Chien-I |
October 9, 2003 |
Ventilation shoe
Abstract
A ventilation shoe has a sole and a pad placed on top of the
sole and provided with through holes. The sole defines therein a
chamber in a rear portion thereof, at least one bore in a side face
defining the chamber so as to communicate with the chamber, at
least one passage and trenches in a front portion thereof to
communicate with the chamber by means of the at least one passage.
A pouch is received in the chamber and has at least one inlet
communicating with the at least one bore and at least one outlet
communicating with the at least one passage. The at least one inlet
has a first unidirectional valve and the at least one outlet has a
second unidirectional valve. Thereby air is circulated in the
sole.
Inventors: |
Wu, Chien-I; (Tao-Yuan
Hsieny, TW) |
Correspondence
Address: |
BROWDY AND NEIMARK, P.L.L.C.
624 NINTH STREET, NW
SUITE 300
WASHINGTON
DC
20001-5303
US
|
Family ID: |
29718569 |
Appl. No.: |
10/115035 |
Filed: |
April 4, 2002 |
Current U.S.
Class: |
36/3B ;
36/3R |
Current CPC
Class: |
A43B 7/081 20130101 |
Class at
Publication: |
36/3.00B ;
36/3.00R |
International
Class: |
A43B 007/06 |
Claims
What is claimed is:
1. In a shoe having a sole and a pad placed on top of the sole and
provided with through holes, wherein the improvements comprise: the
sole defining therein a chamber in a rear portion thereof, at least
one bore in a side face defining the chamber so as to communicate
with the chamber, at least one passage and trenches in a front
portion thereof to communicate with the chamber by means of the at
least one passage; a pouch received in the chamber and having at
least one inlet communicating with the at least one bore and at
least one outlet communicating with the at least one passage, the
trenches being so configured that a communication exists between
the through hoes of the pad and the trenches, the at least one
inlet having a first unidirectional valve which allows air to be
pumped in the pouch and the at least one outlet having a second
unidirectional valve which allows air in the pouch to be pumped to
the at least one passage and therefore the trenches, thereby air is
circulated in the sole.
2. The shoe as claimed in claim 1, wherein there are two bores
oppositely defined in the side face defining the chamber and two
inlets each communicating with a corresponding one of the
bores.
3. The shoe as claimed in claim 2, wherein there are two outlets in
the pouch and two passages each communicating with a corresponding
one of the outlets.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a shoe, and more
particularly to a ventilation shoe. The shoe has a resilient pouch
received in the sole and having two inlets and two outlets
respectively communicating with the air. Each inlet has a
unidirectional valve and each outlet has a unidirectional valve
such that air inside the shoe is able to circulate with the air
outside the air.
BACKGROUND OF THE INVENTION
[0002] A conventional shoe normally encloses the toes and ankle of
the user for protection. However, this kind of shoe after worn for
a long time causes athlete's foot. That is, the conventional shoe
design is not able to circulate the air inside and outside the shoe
and the stuffy air mixed with the moisture from the foot of the
user becomes the perfect incubation bed for fungus. To overcome the
shortcoming, a ventilation shoe with a pouch is invented. When the
user walks on a surface, the weight of the user presses the pouch
so as to reach air circulation inside and outside the air. However,
the pouch is provided outside the heel of the shoe so that the user
will have to deliberately press the pouch, which causes the user to
walk in a very awkward manner. Another invention has a pouch with a
single inlet, which cause insufficient air circulation. Related
inventions are, for example, Taiwan Patent No. 437305 (A) patent,
285843 (B) patent and CN Publication No. 97204488.4 (C).
[0003] The A patent discloses a shoe with a first pouch received in
a rear section of the shoe and having a hollow cylinder and a
second pouch received in a front section of the shoe to communicate
with the first pouch by air ducts. When the hollow cylinder is
pressed by the weight of the user, air is transferred from the
first pouch to the first pouch from the air ducts so that air is
circulated. However, after a long period of time using the first
pouch, the fatigue of the first pouch causes air circulation
failure.
[0004] B patent has an air chamber defined in a rear portion of the
sole and outlets defined in a front portion of the sole to
communicate with the air chamber by air ducts. When the air camber
is pressed due to the weight of the user on the air chamber, air is
transferred to the front portion and emitted to the inside of the
shoe, which accomplishes the object of air circulation. However,
when the user is walking on a surface, the entire weight of the
user does not fall on the air chamber completely so that the air
quantity transferred to the front portion of the shoe is minimum
and thus the effect of air circulation is minimum.
[0005] C publication has a major drawback, which uses a steel plate
mounted on top of the sole. The object of the steel plate is to
allow the weight of the user to press the spring in rear portion of
the shoe, which violates totally the ergonomic comfort of shoe
design.
[0006] To overcome the shortcomings, the present invention intends
to provide an improved ventilation shoe to mitigate or obviate the
aforementioned problems.
SUMMARY OF THE INVENTION
[0007] The primary objective of the invention is to provide a shoe
with a pouch received in the heel of the shoe and having two inlets
defined to communicate with the air and two outlets communicating
with the two inlets, such that when the pouch is pressed, air is
able to be forced to move to the front portion of the shoe and
emitted evenly in the shoe.
[0008] Another objective of the invention is to provide a
ventilation shoe, wherein a unidirectional valve is provided to
each of the inlets and the outlets, such that air can only pass
through the inlets and enter the inside of the pouch and air can
only pass through the outlets and expelled out of the shoe.
[0009] Other objects, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is an exploded perspective view of the ventilation
shoe of the present invention;
[0011] FIG. 2 is a schematic side view showing the air flow inside
the ventilation shoe of the present invention; and
[0012] FIG. 3 is a top view of the pouch in accordance with the
present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0013] With reference to FIG. 1, the ventilation shoe constructed
in accordance with the present invention is provided with a pouch 4
received in a chamber 1 defined in a heel of a sole 2 and a pad
3.
[0014] The sole 2 has two oppositely defined bores 21 defined in a
side face defining the chamber 1 so as to communicate the chamber 1
to the air, a first and a second passages 11, 12 defined in a top
face of the sole 2 to communicate with the chamber 1 and
irregularly defined trenches 13 distributed in a front portion of
the sole to communicate with the first and second passages
11,12.
[0015] The pouch 4 is hollow and is made of a resilient material.
The pouch 4 has two inlets 41,41' and two outlets 42, 42'. Each
inlet 41, 41' has a first unidirectional valve 43 and each outlet
42, 42' has a second unidirectional 43', as shown in FIG. 3.
[0016] With reference to FIGS. 2 and 3, when the pouch 4 of the
present invention is received in the chamber 1 and the pad 3 with
multiple through holes 31 defined therethrough is placed on top of
the sole 2, a press on the pouch 4 will force the air inside the
pouch 4 out of the pouch 4 from the outlets 42, 42'. The air will
then travel through the first and second passages 11, 12 and
distributed to the trenches 13. Because of the communication
between the trenches 13 and the through holes 31, the air is able
to flow through the through holes 31 and an objective of air
circulation inside the shoe is accomplished.
[0017] It is to be noted especially from FIG. 3 that the first
unidirectional valve 43 in the inlets 41 allows air to be pumped in
the pouch 4 after the pouch 4 is pressed and the second
unidirectional valve 43' in the outlets 42 allows the air in the
pouch 4 to flow further into the front portion of the sole 2. When
the air is forced to the front portion of the sole 2, the air is
distributed to the trenches 13 and therefore to the through holes
31 in the pad 3. Accordingly, the user feels a fresh air flowing to
the feet every time the user presses the pouch 4.
[0018] It is to be noted from the foregoing description that the
present invention provides fresh air to the user every time the
user walks. Therefore, disease such as athlete's foot is
prevented.
[0019] Even though numerous characteristics and advantages of the
present invention have been set forth in the foregoing description,
together with details of the structure and function of the
invention, the disclosure is illustrative only, and changes may be
made in detail, especially in matters of shape, size, and
arrangement of parts within the principles of the invention to the
full extent indicated by the broad general meaning of the terms in
which the appended claims are expressed.
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