U.S. patent application number 11/595482 was filed with the patent office on 2008-05-15 for air permeable middle sole of a shoe.
Invention is credited to Chin Wan Liu.
Application Number | 20080110063 11/595482 |
Document ID | / |
Family ID | 39367801 |
Filed Date | 2008-05-15 |
United States Patent
Application |
20080110063 |
Kind Code |
A1 |
Liu; Chin Wan |
May 15, 2008 |
Air permeable middle sole of a shoe
Abstract
An air permeable middle sole including a plastic layer and an
air permeable woven layer covering up the plastic layer; multiple
ventilation pores being consistently disposed in the plastic layer;
and multiple grooves being molded among and connecting through
those ventilation pore; a wall is disposed to the edge of the
plastic layer; a blank edge surrounding pores being disposed on the
bottom of the plastic layer to ensure tight adhesion to the insole;
grooves being directly in the plastic layer; the woven layer being
made of air permeable material to permit vertical air circulation
through woven layer and pores; the grooves allowing unobstructed
expelling of odor to ambient air; and grooves and pores permitting
water containment and sweats built up on the shoe to be expelled in
time.
Inventors: |
Liu; Chin Wan; (Wufong
Township, TW) |
Correspondence
Address: |
PRO-TECHTOR INTERNATIONAL SERVICES
20775 NORADA CT.
SARATOGA
CA
95070
US
|
Family ID: |
39367801 |
Appl. No.: |
11/595482 |
Filed: |
November 10, 2006 |
Current U.S.
Class: |
36/3B ; 36/11.5;
36/3R |
Current CPC
Class: |
A43B 3/108 20130101;
A43B 1/0045 20130101; A43B 7/06 20130101 |
Class at
Publication: |
36/3.B ; 36/11.5;
36/3.R |
International
Class: |
A43B 7/06 20060101
A43B007/06; A43B 3/12 20060101 A43B003/12 |
Claims
1. An air permeable middle sole including a plastic layer and an
air permeable woven layer covering up the plastic layer; multiple
ventilation pores being consistently disposed in the plastic layer;
and multiple grooves being molded among and connecting through
those ventilation pores.
2. The air permeable middle sole as claimed in claim 1, wherein a
blank edge surrounding the area where multiple ventilation pores
are provided is provided on the plastic layer.
3. The air permeable middle sole as claimed in claim 1, wherein
those grooves include lateral ones and longitudinal ones with
certain portion of those lateral grooves passing through the
wall.
4. The air permeable middle sole as claimed in claim 1, wherein
those grooves are distributed in a reticular pattern.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention is related to a shoe component, and
more particularly, to an air permeable middle sole.
[0003] (b) Description of the Prior Art
[0004] Middle soles generally available in the market are usually
made of Ethylene-Vinyl Acetate (EVA) or Polyurethane (PU) foamed
materials. However, these materials are known for poor air
permeability for effective expelling of sweats and odor that may
present in the shoes to compromise wearing comfort. An improvement
disclosed in PRC Utility Patent No. 98248789.4 under the title of
"Footwear with Massage, Drainage, and Air Permeable Functions"
teaches a type of middle sole that though provides drainage and air
permeable functions is found with complicated structure and higher
production cost of the shoes.
SUMMARY OF THE INVENTION
[0005] The primary purpose of the present invention is to provide a
middle sole that is simple in construction and yielding better air
permeability to correct the problems found with the prior art.
[0006] To achieve the purpose, a middle sole of the present
invention is comprised of a plastic layer and an air permeable
woven layer. Wherein, multiple ventilation pores are consistently
disposed in the plastic layer and connecting through one another by
means of multiple molded groves. A blank edge is disposed on the
bottom of the plastic layer to ensure tight adhesion of the middle
sole to the sole of a shoe.
[0007] Those grooves include lateral and longitudinal ones with
certain portion of those lateral ones penetrating through the blank
edge to communicate with the ambient air. Whereas ventilation pores
are directly disposed in the plastic layer of the middle sole and
the woven layer is made of air permeable fabric, air current in the
shoe is allowed vertical ventilation through the woven layer and
ventilation pores. Grooves to communicate with ambient air are
disposed to connect ventilation pores for facilitating air
circulation to fully expel odor trapped in the shoe; and similarly,
sweats from human body and water containment built up on the shoe
can be drained in time through those grooves and pores disregarding
the fact that the bottom of the plastic layer is adhered to the
sole.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a schematic view showing an operating status of a
preferred embodiment of the present invention.
[0009] FIG. 2 is a rear view of the preferred embodiment of the
present invention.
[0010] FIG. 3 is a perspective view showing a local part of the
preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0011] Referring to FIGS. 1, 2, and 3, a preferred embodiment of
the present invention is comprised of a plastic layer 1 and an air
permeable woven layer 2 on top of the plastic layer 1. The plastic
layer 1 is made of rubber, EVA, PU, PVC, or TPR; and the woven
layer 2 is made of plain or printed fabric including cotton and
hempen materials for absorbing sweats and providing good air
permeability and drainage. The material of the woven layer 2 may be
blended or combined with far infrared material, or processed with
optical catalyst to further provide antiseptic, deodorizing, and
decontamination results.
[0012] A blank edge 14 is provided on the bottom of the plastic
layer 1 surrounding a central area consistently disposed with
multiple ventilation pores 11 connecting through one another by
mans of multiple grooves. Those multiple grooves are comprised of
lateral grooves 12 and longitudinal grooves 13 with certain portion
of those lateral grooves 12 penetrating through the edge 14.
Accordingly, those multiple ventilation pores 11 are capable of
communicating with ambient air to facilitate expelling air current
and water mist through those grooves 12, 13. Furthermore, the depth
of each groove 12, 13 is approximately half of that of the
ventilation pore 11 to guarantee sufficient depth for each
ventilation pore 11 and better strength and flexibility of the
entire plastic layer 1.
[0013] The woven layer 2 is directly fused to the surface of the
plastic layer 1, and the bottom of the plastic layer 1 is forthwith
adhered to a sole 3 as illustrated in FIG. 1. The surface area on
the woven layer 2 is corresponding to an area 21 where those
ventilation pores 11 are located. The air current realizes its
ventilation purpose through the area 21. Disregarding the fact that
the plastic layer 1 is adhered to the sole 3, presence of those
lateral and longitudinal grooves 12, 13 permits air circulation
between the plastic layer 1 and the sole 3 to expel airflow and air
mist into ambient air. Meanwhile, the shoes remains dry and
odorless since airflow trapped in the shoes is continuously
compressed and expelled as the wearer keeps pressing the shoes when
he/she is walking.
[0014] The prevent invention provides an improved structure of an
air permeable middle sole, and the application for a utility patent
is duly filed accordingly. However, it is to be noted that the
preferred embodiments disclosed in the specification and the
accompanying drawings are not limiting the present invention; and
that any construction, installation, or characteristics that is
same or similar to that of the present invention should fall within
the scope of the purposes and claims of the present invention.
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