U.S. patent application number 11/110186 was filed with the patent office on 2006-10-26 for sole for footwear.
Invention is credited to Kenneth Lee.
Application Number | 20060236561 11/110186 |
Document ID | / |
Family ID | 37185350 |
Filed Date | 2006-10-26 |
United States Patent
Application |
20060236561 |
Kind Code |
A1 |
Lee; Kenneth |
October 26, 2006 |
Sole for footwear
Abstract
A sole for footwear having straps includes a first surface
substantially of the shape of bottom of a foot, a second surface
having a predetermined friction, and an edge connecting the first
surface and the second surface The first and second surfaces and
the edge are made of a light, flexible, and water repellent
material. The first surface is substantially flat and adapted to
accommodate a human foot. The first surface includes a surface
contour similar to the geometrical surface contour of the bottom of
the foot or grooves of predetermined pattern. The groove is for
further repelling of water off the first surface and has open edges
to let water off the first surface. The second surface is
substantially flat and adapted to tramp on a ground. The material
of sole includes ethylene vinyl acetate, synthetic glue, DICUMYL
peroxide, blowing agent, stearic acid, and pigment.
Inventors: |
Lee; Kenneth; (Whittier,
CA) |
Correspondence
Address: |
PARK LAW FIRM
3255 WILSHIRE BLVD
SUITE 1110
LOS ANGELES
CA
90010
US
|
Family ID: |
37185350 |
Appl. No.: |
11/110186 |
Filed: |
April 20, 2005 |
Current U.S.
Class: |
36/25R |
Current CPC
Class: |
A43B 5/08 20130101; A43B
3/108 20130101 |
Class at
Publication: |
036/025.00R |
International
Class: |
A43B 13/00 20060101
A43B013/00; A43B 13/14 20060101 A43B013/14 |
Claims
1. A sole for footwear having straps comprising: a) a first surface
substantially of the shape of bottom of a foot; b) a second surface
having a predetermined friction; and c) an edge connecting the
first surface and the second surface, wherein the first and second
surfaces and the edge are made of a light, flexible, and water
repellent material.
2. The sole of claim 1, wherein the first surface is substantially
flat.
3. The sole of claim 2, wherein the first surface is adapted to
accommodate a human foot.
4. The sole of claim 3, wherein the first surface comprises a
surface contour similar to the geometrical surface contour of the
bottom of the foot.
5. The sole of claim 3, wherein the first surface comprises grooves
of predetermined pattern.
6. The sole of claim 5, wherein the groove is for further repelling
of water off the first surface.
7. The sole of claim 6, wherein the groove comprises open edges to
let water off the first surface.
8. The sole of claim 5, wherein the groove is for increasing the
friction between the foot and the first surface.
9. The sole of claim 8, wherein the pattern is substantially
perpendicular to the line connecting toe and heel.
10. The sole of claim 1, wherein the second surface is
substantially flat.
11. The sole of claim 10, wherein the second surface is adapted to
tramp on a ground.
12. The sole of claim 11, wherein the second surface comprises
grooves of a predetermined pattern.
13. The sole of claim 12, wherein the pattern of the grooves on the
second surface increases the friction between the second surface
and the ground.
14. The sole of claim 1, further comprising one or more straps
having one or more end portions.
15. The sole of claim 14, wherein the first surface comprises a
fixing member for attaching the straps.
16. The sole of claim 15, wherein the fixing member comprises a
hole, wherein the hole is adapted to accommodate the end portion of
the strap.
17. The sole of claim 16, wherein the strap has a letter Y-shape
with three end portions.
18. The sole of claim 1, wherein the material of sole has a
composition of: a) about 81.0-96.0% of ethylene vinyl acetate; b)
about 3.0-7.0% of synthetic glue; c) about 0.2-1.5% of DICUMYL
peroxide; d) about 2.0-6.0% of blowing agent; e) about 0.1-0.9% of
stearic acid; and f) about 1.0-3.0% of pigment.
19. The sole of claim 18, wherein the material of sole has a
composition of: a) about 85.0-90.0% of ethylene vinyl acetate; b)
about 4.5-5.0% of synthetic glue; c) about 0.6-1.0% of DICUMYL
peroxide; d) about 3.5-5.0% of blowing agent; e) about 0.3-0.7% of
stearic acid; and f) about 1.5-2.5% of pigment.
20. The sole of claim 19, wherein the material of sole has a
composition of: a) about 88.4% of ethylene vinyl acetate; b) about
4.7% of synthetic glue; c) about 0.8% of DICUMYL peroxide; d) about
3.7% of blowing agent; e) about 0.5% of stearic acid; and f) about
1.9% of pigment.
21. The sole of claim 1, wherein the first surface comprises a
plurality of pits.
22. The sole of claim 21, wherein the pit's size is about 0.2-2.0
mm.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a sole for footwear. More
particularly, this invention relates to a sole for footwear, which
is light, flexible, and water repellent.
[0002] Feet of human being, which have been accustomed to all sorts
of footwear through the history, still need footwear even on a soft
ground like beach sands most of the cases and people do so nearly
subconsciously.
[0003] On a soft ground including the beach sands, many people want
to wear some kinds of footwear. There are many possible reasons.
The sands radiated all day long by the sizzling summer sun might be
too hot for the bare feet. The beach sands might have shards of
seashells too sharp to tramp on.
[0004] People wear beach sandals for those reasons. Since there is
too much water and sands on the beach, it is desirable to shed off
them as quickly as possible. In addition to these, light weight and
stylishness is always a plus.
[0005] Accordingly, a need for a sole for footwear has been present
for a long time. This invention is directed to solve these problems
and satisfy the long-felt need.
SUMMARY OF THE INVENTION
[0006] The present invention contrives to solve the disadvantages
of the prior art.
[0007] An object of the invention is to provide a sole for
footwear.
[0008] Another object of the invention is to provide a sole for
footwear, especially for beach sandals.
[0009] Still another object of the invention is to provide a sole
for footwear, which is light in weight, colorful, water
repellent.
[0010] A sole for footwear having straps includes a first surface
substantially of the shape of bottom of a foot, a second surface
having a predetermined friction, and an edge connecting the first
surface and the second surface, where the first and second surfaces
and the edge are made of a light, flexible, and water repellent
material.
[0011] The first surface is substantially flat and adapted to
accommodate a human foot. The first surface includes a surface
contour similar to the geometrical surface contour of the bottom of
the foot. Also, the first surface may include grooves of
predetermined pattern. The groove is for further repelling of water
off the first surface. The groove includes open edges to let water
or sand grain off the first surface. The groove is also for
increasing the friction between the foot and the first surface. The
pattern is substantially perpendicular to the line connecting toe
and heel.
[0012] The second surface is substantially flat and adapted to
tramp on a ground. The second surface includes grooves of a
predetermined pattern. The pattern of the grooves on the second
surface increases the friction between the second surface and the
ground.
[0013] The sole includes one or more straps having one or more end
portions. The first surface includes a fixing member for attaching
the straps. The fixing member includes a hole, which is adapted to
accommodate the end portion of the strap. The strap has a letter
Y-shape with three end portions.
[0014] The material of sole has a composition of about 81.0-96.0%
of ethylene vinyl acetate, about 3.0-7.0% of synthetic glue, about
0.2-1.5% of DICUMYL peroxide, about 2.0-6.0% of blowing agent
(DPTDD), about 0.1-0.9% of stearic acid, and about 1.0-3.0% of
pigment.
[0015] More specifically, the material of sole has a composition of
about 85.0-90.0% of ethylene vinyl acetate, about 4.5-5.0% of
synthetic glue, about 0.6-1.0% of DICUMYL peroxide, about 3.5-5.0%
of blowing agent (DPTDD), about 0.3-0.7% of stearic acid, and about
1.5-2.5% of pigment.
[0016] Still more specifically, the material of sole has a
composition of about 88.4% of ethylene vinyl acetate, about 4.7% of
synthetic glue, about 0.8% of DICUMYL peroxide, about 3.7% of
blowing agent (DPTDD), about 0.5% of stearic acid, and about 1.9%
of pigment.
[0017] The first surface may include a plurality of pits. The pit's
size is about 0.2-2 mm.
[0018] The advantages of the present invention are: (1) the sole is
of light weight and stylish; (2) the sole is good for beach sandals
since it repels water and sand grains.
[0019] Although the present invention is briefly summarized, the
fuller understanding of the invention can be obtained by the
following drawings, detailed description and appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] These and other features, aspects and advantages of the
present invention will become better understood with reference to
the accompanying drawings, wherein:
[0021] FIG. 1 is a perspective view of a sole with straps according
to the invention;
[0022] FIG. 2 is a plan view of the top of the sole; and
[0023] FIG. 3 is a plan view of the bottom of the sole;
DETAILED DESCRIPTION OF THE INVENTION
[0024] FIG. 1 show a perspective view of a sole with straps of the
invention.
[0025] A sole 11 for footwear having straps 20 includes a first
surface 12 substantially of the shape of bottom of a foot, a second
surface 14 having a predetermined friction, and an edge 16
connecting the first surface 12 and the second surface 14, where
the first and second surfaces 12, 14 and the edge 16 are made of a
light, flexible, and water repellent material.
[0026] The first surface 12 is substantially flat and adapted to
accommodate a human foot. The first surface 12 includes a surface
contour 13 similar to the geometrical surface contour of the bottom
of the foot. Also, the first surface 12 may include grooves 15 of
predetermined pattern. The groove 15 is for further repelling of
water off the first surface 12. The groove 15 includes open edges
17 to let water or sand grain off the first surface 12. The groove
15 is also for increasing the friction between the foot and the
first surface 12. The pattern is substantially perpendicular to the
line connecting toe and heel.
[0027] The second surface 14 is substantially flat and adapted to
tramp on a ground. The second surface 14 includes grooves 19 of a
predetermined pattern. The pattern of the grooves 19 on the second
surface 14 increases the friction between the second surface 14 and
the ground.
[0028] The sole 11 includes one or more straps 20 having one or
more end portions 21. The first surface 12 includes a fixing member
18 for attaching the straps 20. The fixing member 18 includes a
hole, which is adapted to accommodate the end portion 21 of the
strap 20. Preferably the strap 20 has a letter Y-shape with three
end portions 21.
[0029] The material of sole 11 has a composition of about
81.0-96.0% of ethylene vinyl acetate, about 3.0-7.0% of synthetic
glue, about 0.2-1.5% of DICUMYL peroxide, about 2.0-6.0% of blowing
agent (DPTDD), about 0.1-0.9% of stearic acid, and about 1.0-3.0%
of pigment, where DPTDD is a style name used by a Taiwanese
manufacturer.
[0030] More specifically, the material of sole 11 has a composition
of about 85.0-90.0% of ethylene vinyl acetate, about 4.5-5.0% of
synthetic glue, about 0.6-1.0% of DICUMYL peroxide, about 3.5-5.0%
of blowing agent (DPTDD), about 0.3-0.7% of stearic acid, and about
1.5-2.5% of pigment.
[0031] Still more specifically, the material of sole 11 has a
composition of about 88.4% of ethylene vinyl acetate, about 4.7% of
synthetic glue, about 0.8% of DICUMYL peroxide, about 3.7% of
blowing agent (DPTDD), about 0.5% of stearic acid, and about 1.9%
of pigment.
[0032] The first surface 12 may include a plurality of pits 23. The
size of the pit 23 is about 0.2-2 mm. These tiny pits 23 are
provided by blowing the material in manufacturing. The surface of
the sole 11 can be made to be glittering.
[0033] The beach sandal 10 is suitable for dry sands, wet sands,
and hard floor.
[0034] While the invention has been shown and described with
reference to different embodiments thereof, it will be appreciated
by those skilled in the art that variations in form, detail,
compositions and operation may be made without departing from the
spirit and scope of the invention as defined by the accompanying
claims.
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