U.S. patent application number 12/170955 was filed with the patent office on 2009-07-23 for midsole of masai walking specialized shoes.
This patent application is currently assigned to RYNKOREA CO., LTD.. Invention is credited to Ho Hyoung LEE.
Application Number | 20090183393 12/170955 |
Document ID | / |
Family ID | 39825575 |
Filed Date | 2009-07-23 |
United States Patent
Application |
20090183393 |
Kind Code |
A1 |
LEE; Ho Hyoung |
July 23, 2009 |
Midsole of Masai Walking Specialized Shoes
Abstract
The invention relates to a midsole structure having an airbag in
the rear portion or from the rear portion to the front portion for
Masai walking specialized shoes, wherein a connecting panel shank
comprising the front shank and rear shank coupled with a connecting
panel is built such that rolling movement of three steps occurs
actively during walking three steps of landing, center moving and
leaving step and an arch styled finger pressure effect occurs
because the front and rear shank are compressed.
Inventors: |
LEE; Ho Hyoung; (Busan,
KR) |
Correspondence
Address: |
CANTOR COLBURN, LLP
20 Church Street, 22nd Floor
Hartford
CT
06103
US
|
Assignee: |
RYNKOREA CO., LTD.
Seoul
KR
|
Family ID: |
39825575 |
Appl. No.: |
12/170955 |
Filed: |
July 10, 2008 |
Current U.S.
Class: |
36/103 ; 36/108;
36/114; 36/29; 36/30R; 36/43 |
Current CPC
Class: |
A43B 13/10 20130101;
A43B 21/28 20130101; A43B 13/145 20130101; A43B 13/20 20130101;
A43B 23/22 20130101; A43B 13/12 20130101 |
Class at
Publication: |
36/103 ; 36/108;
36/114; 36/29; 36/30.R; 36/43 |
International
Class: |
A43B 13/00 20060101
A43B013/00; A43B 23/00 20060101 A43B023/00; A43B 5/00 20060101
A43B005/00; A43B 13/20 20060101 A43B013/20; A43B 13/12 20060101
A43B013/12; A43B 13/38 20060101 A43B013/38 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 18, 2008 |
KR |
10-2008-0005575 |
Claims
1. A midsole for Masai walking specialized shoes, capable of
playing Masai walking, comprised of a leather, slipsole, insole,
midsole and convex shaped outsole, wherein the midsole is made of
polyester or polyurethane with hardness 40.about.60, has a convex
arch shape from the front portion to rear portion, the inclination
angle of the heeltap is 25.about.45 degrees, an airbag (40) is
formed in the rear portion of the midsole (20) or an airbag (140)
is formed from the rear portion to the front portion of the
midsole; and a connecting panel shank (60) is built in the midsole
(20) in which the front shank (62) and rear shank (64) are coupled
with a connecting panel (70).
2. A midsole for Masai walking specialized shoes according to claim
1, the connecting panel (70) is made of a flexible thin metal panel
or a flexible thin synthetic resin panel.
3. A midsole for Masai walking specialized shoes according to claim
1, the connecting panel shank comprises a front shank (62) having
plural slits (62a) opened into the free end from a given position;
a rear shank (64) being coupled the front shank (62); and a
connecting panel being coupled the front shank (62) and the rear
shank (64) by a fixture (72).
Description
TECHNICAL FIELD
[0001] This invention relates to an airbag midsole structure having
a connecting panel shank for Masai walking specialized shoes, more
particularly an airbag midsole structure wherein an airbag is built
in the rear portion or built from the rear portion to front
portion, and a connecting panel shank comprising the front shank
and rear shank coupled with a connecting panel is built such that
rolling movement of three steps occurs actively during walking
three steps of landing, center moving and leaving step and an arch
styled finger pressure effect occurs because the front and rear
shank are compressed.
BACKGROUND ART
[0002] The invention refers to a bottom piece used in Masai walking
specialized shoes for playing Masai walking, improved the invention
(Utility model KR20-0402587, Health shoes improved the heeltap) and
another invention (Patent KR10-0584527, Midsole and producing
method thereof for rolling health shoes having tunnels)
[0003] In FIG. 1(a) and FIG. 1(b) of Korean Patent 10-377822, the
numbers `1, 2, 3, 10, 12 and 13` indicate shoes, leather, bottom
piece, insole, midsole and outsole respectively. Referring to the
description of the Korean Patent 10-377822, the term `Masai walking
specialized rolling walk shoes` indicates shoes having an effect of
Masai tribal walking where the bottom piece's surface has a curved
shape and there is no heel, and `Masai walking` is illustrated in
FIGS. 1(c), 1(d) and 1(e).
[0004] Korea Walking Association, World Walking Association, shoes
companies and common consumers name the shoes having an effect of
Masai walking without the heeltap and having a curve shaped bottom
piece "Masai Bearfoot Technology Shoes", and it is also called
"Masai walking specialized Shoes" or "Masai tribal walking
specialized shoes" in general books, newspapers, magazines, as well
as internet.
[0005] In general, the foot's motion on the ground carries out
repeatedly typical 3 steps, namely, landing step by the heel,
center moving step from the heel to the toe, and leaving step from
the ground.
DISCLOSURE
[Technical Problem]
[0006] Since conventional shoes has a heel at right angle to the
ground and conventional shoes have a sharp edge on the heel, the
edge touches firstly with the ground during landing step, the
impact during landing step is large because of the narrow liner
shape of the heel's landing surface, and as the next center moving
step is carried out at a stroke, a sudden impact is transferred to
each joint of the body and legs, resulting in bad landing
sensitivity and unnatural walking.
[0007] In conventional midsoles for Masai walking rolling shoes
such as prior inventions KR10-2007-114634, KR10-2007-124094 and
KR10-2007-120842, high elastic shank is built in the rear upper
portion of the midsole, the front portion of the midsole is forked
with several slits opened into the free end from a given position,
and beed shaped ribs for enforcement are formed in the middle
portion. Since the shank built in the conventional Masai walking
rolling shoes moves forward and rearward, there are problems that
the midsole is not changed soft during walking three steps and
walking is unnatural due to the bounding feeling.
[Technical Solution]
[0008] The object of the invention is to provide a midsole for
Masai walking specialized rolling shoes, which is improved for
solving above conventional problems, wherein a connecting panel
shank comprising the front shank and rear shank coupled with a
connecting panel is built such that rolling movement of three steps
occurs actively during walking three steps of landing, center
moving and leaving step and an arch styled finger pressure effect
occurs because the front and rear shank are compressed.
[0009] According to the invention, there is provided an airbag in
the rear portion or from the rear portion to the front portion of
the midsole for Masai walking specialized shoes, and a connecting
panel shank comprising the front shank and rear shank coupled with
a connecting panel is built in the midsole.
[Advantageous Effects]
[0010] According to the invention, a connecting panel shank is
built in the upper of the midsole, rolling movement occurs against
the ground because the heel's surface of the bottom piece is formed
in the curved shape along the motion trace of the heel against
ankle joint during walking, and as during walking three steps of
landing, center moving and leaving step three steps of rolling
movement occur smoothly by the elastic force of the connecting
panel and the front shank and rear shank are compressed, arch
styled finger pressure effect occurs. Therefore Masai walking
specialized shoes can be produced and the invention is very useful
in the shoes industry.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The above and other objection 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:
[0012] FIGS. 1(a)-(d) are perspective views of conventional Masai
Walking Rolling Walk Shoes.
[0013] FIG. 2 is a cross-sectional view of a bottom piece according
to the invention,
[0014] FIG. 3 is an exploded cross-sectional view according to FIG.
2,
[0015] FIG. 4 is a perspective view of a connecting panel shank
according to the invention,
[0016] FIG. 5 is a cross-sectional view according to FIG. 4,
[0017] FIG. 6 is a perspective view of the Masai walking
specialized shoes according to the invention,
[0018] FIG. 7 is a cross-sectional view of another bottom piece
according to the invention,
[0019] FIG. 8 is an exploded cross-sectional view according to FIG.
7, and
[0020] FIG. 9 is a perspective view of the Masai walking
specialized shoes according to another invention.
MODE FOR INVENTION
[0021] According to the present invention, a Masai walking
specialized rolling shoes is provided which comprise a leather,
bottom piece, insole, midsole and convex shaped outsole, wherein
the midsole is made of polyester or polyurethane having hardness
40.about.60, has a convex shaped arch form from the front portion
to rear portion and the inclination angle of 25.about.45 degrees at
the heeltap, an airbag (40) is formed in the rear portion of the
midsole (20) or an airbag (140) is formed from the rear portion to
front portion of the midsole (20), and a connecting panel shank
(60) having the front shank (62) and rear shank (64) coupled with a
connecting panel (70), is built in the midsole (20).
[0022] According to the midsole structure of the invention, the
connecting panel (70) features that the material is selected from a
flexible thin panel or a thin synthetic resin panel. Furthermore,
the connecting panel shank features that plural slits (62a) are
formed opened into the free end from a given position of the front
portion, and the front shank (62) and rear shank (64) are coupled
with a fixture (72).
[0023] The Masai walking specialized shoes having the connecting
panel shank, according to the invention, is a typical shoes
comprising a leather, bottom piece and slipsole, wherein the bottom
piece comprises an insole (10), midsole (20) and outsole (30), and
the surface of the bottom piece has a curved arch shape without the
heel, therefore the shoes having the same effect as Masia walking
has names such as Masai Bearfoot Technology Shoes, Masai Walking
Specialized Shoes, Masai Walking Shoes, Masai Walking Dedicated
Shoes, Patented Technological Shoes on Masai Walking, and Masai
Walking Patented Shoes.
[0024] In the Masai walking specialized shoes according to the
invention, the midsole (20) is shaped in the panel form which is
made after the pattern of the profile and curved shape of the
bottom piece, and a connecting panel shank (60) is built in the
midsole (20), resulting in rolling movement against the ground by
forming the surface of the heeltap of the bottom piece into a
curved shape after the pattern of the shape of the heel and the
motion trace of the heel against ankle joint during walking.
[0025] In the connecting panel shank (60) built in the midsole (20)
according to the invention, the front shank (62) and rear shank
(64) are coupled integrally with the connecting panel (70) or the
front shank (62) and rear shank (64) are coupled with a separate
connecting panel (70) by a fixture (72). The connecting panel shank
(60) is preferably made of polyvinylchloride (PVC) and the
connecting panel (70) is preferably made of material having
hardness less than the front and rear shanks. Since the connecting
panel (70) is made of a flexible thin metal panel or thin synthetic
resin, the front shank (62) and rear shank (64) are capable of
bending up and down centering on the connecting panel (70).
[0026] Because the front shank (62) and rear shank (64) are capable
of bending up and down centering on the connecting panel (70), a
rolling effect occurs naturally during walking three steps of
landing, center moving and leaving step by the elastic action of
the connecting panel (70).
[0027] As shown in FIGS. 2 to 6, in the connecting panel shank (60)
built in the midsole (20) having an airbag in the rear portion or
from the rear portion to front portion, the front shank (62) and
rear shank (64) are coupled with the connecting panel (70) such
that a rolling effect occurs naturally during walking three steps
of landing, center moving and leaving step by the elastic action of
the connecting panel (70). Further, since the front shank (62) and
rear shank (64) of the midsole are compressed during walking three
steps of landing, center moving and leaving step, the rolling
movement of three steps occurs smoothly by the elastic action of
the connecting panel. Furthermore, during walking three steps of
landing, center moving and leaving step, arch formed finger
pressure is generated because rolling movement of three steps
occurs actively and the front shank (62) and rear shank (64) are
compressed.
[0028] In the bottom piece structure for the Masai walking
specialized shoes having an airbag in the rear portion or from the
real portion to the front according to the invention, preferably
the connecting panel shank (60) and the connecting panel (70) are
made of polyvinylchloride (PVC), polyurethane or polyester resin.
Further, in the bottom piece structure having the connecting panel
shank, the connecting panel shank (60) comprises preferably the
front shank (62) having plural slits (62a) opened into the free end
from a given position; the rear shank (64) coupled with the front
shank (62); and the connecting panel (70) coupled with the front
shank (62) and rear shank (64).
[0029] The rolling shoes having the midsole, wherein an airbag is
formed in the rear portion or from the rear portion to the front
portion, can be viewed by three steps of landing, center moving and
leaving step. When the heel of the rolling shoes according to the
invention touches on the ground during landing step, the impact
amount of landing decreases relatively because the landing surface
of the bottom piece is broad, and an arch formed finger pressure
effect occurs because rolling movement of three steps occurs
actively as well as the front shank (62) and rear shank (64) are
compressed, resulting in high buffering effect and smooth
landing.
[0030] In contrast with the shoes not having the connecting panel
shank (60), the rolling shoes of the invention reduces the hardness
as much as the half with increasing buffering effect. In the
rolling shoes of the invention, the bottom surface of the heeltap
having a curved shape plays rolling movement along the ground and
absorbs the impact dispersively when the walking step passes into
the center moving step. Furthermore, according to the rolling shoes
of the invention, since the center of the shoes moves gradually
along the curved shape, there is not occurred the rapid impact in
the ankle joints, legs and any joints of the body, resulting in
smooth walking.
[0031] The connecting panel shank (60) built in the midsole of the
invention, preferably, has plural slits (62a) which are opened into
the free end from a given portion, forked into plural portion, and
has beed shaped ribs for enforcing the middle portion. In the
rolling shoes of the invention, the connecting panel shank (60) is
designed such that the initial forms of the bottom piece and shoes
remain, and the bottom piece frequently bent and stretched is
positively restored as well as the light walking is possible by
adding repulsive force during leaving step and the walking
stability is improved. Although the connecting panel shank (60) can
be made with any forms and materials, preferably it is formed in
the panel shape after the pattern of the profile and curved shape
of the midsole (20) using polyvinylchloride (PVC), the front
portion of the connecting panel shank (60) having a large bending
angle has plural slits (62a) opened into the free end from a given
position in the fork shape in order that the bending action
achieves easy, and preferably beed shaped ribs are formed in both
directions of the forward and rearward for enforcing the middle
portion of the shank, and plural through holes (62c) are formed in
order that the mold fluid flows actively during the midsole (20)
producing.
[0032] The heeltap of the outsole (30) is formed in the arch shape
such that the inclination angle of the heeltap against the ground
has 25.about.45 degrees. In case of less than 25 degree, the
rolling action does not occur, and the posture becomes unstable
during putting on the shoes or standing in case of more than 45
degree.
[0033] The midsole (20) of the rolling shoes according to the
invention is made of polyester or polyurethane with hardness
40.about.60. In case of less than 40, the midsole cannot play the
role of a support due to the exceed softness, and cannot play the
role of an elastic member in case of more than 60.
[0034] According to the invention, an airbag (40) is formed in the
rear portion or from the rear portion to the front portion of the
midsole (20). Therefore the midsole producing term and cost
reduces, the soft bearfoot is prevented from breakage due to
hydrolysis reaction and the repulsive force by cushion action can
be generated much.
[0035] According to the shank inserted into the midsole (20) of the
invention, the bottom piece and shoes's original shape remain well,
the bottom piece frequently bent and stretched during walking
restores actively, and light walking is achieved because the toe
portion is pushed forward by the added repulsive force through
restoration force during leaving step as well as the walking
stability is high because the bottom piece is elastic and remains
continuously.
[0036] According to the invention, an insole (10) is provided on
the upper of the midsole (20), is made of non-woven fabric with
hardness 25.about.30, and light walking is achieved because the
repulsive force is added by the restoration force during leaving
step as well as high walking stability, resulting in high walking
efficiency. In case of less than hardness 25, the insole is
incapable of playing the role of a support due to the exceed
softness, and incapable of playing the role of an elastic member
due to the exceed hardness in case of more than 30.
[0037] According to the invention, the outsole (30) is provided in
the under of the midsole (20), is made of polyester or polyurethane
with hardness 70.about.80, has a convex arch shape from the front
portion to the rear portion, and the inclination angle of the
heeltap is 25.about.45 degrees. In case of less than hardness 70,
the outsole is incapable of playing the role of a support due to
the exceed softness, and incapable of playing the role of an
elastic member in case of more than 80.
* * * * *