U.S. patent number 3,859,727 [Application Number 05/279,518] was granted by the patent office on 1975-01-14 for footwear containing foot massage means.
Invention is credited to Hideru Nakamoto.
United States Patent |
3,859,727 |
Nakamoto |
January 14, 1975 |
FOOTWEAR CONTAINING FOOT MASSAGE MEANS
Abstract
An item of footwear capable of effecting foot massage while it
is being worn, thereby stimulating circulation of the blood and
thus promoting the overall health of the individual through the
strengthening of the internal organs.
Inventors: |
Nakamoto; Hideru (Aridashi,
JA) |
Family
ID: |
27300641 |
Appl.
No.: |
05/279,518 |
Filed: |
August 10, 1972 |
Foreign Application Priority Data
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|
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Aug 10, 1971 [JA] |
|
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46-71443 |
Sep 18, 1971 [JA] |
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46-85256 |
Oct 29, 1971 [JA] |
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46-10164 |
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Current U.S.
Class: |
36/11.5; 36/44;
36/141 |
Current CPC
Class: |
A43C
15/09 (20130101); A43B 7/146 (20130101); A43B
13/148 (20130101); A43B 13/143 (20130101) |
Current International
Class: |
A43B
13/14 (20060101); A43B 3/10 (20060101); A43C
15/00 (20060101); A43C 15/09 (20060101); A43b
003/12 (); A61f 005/14 () |
Field of
Search: |
;36/2.5R,1,11.5,43
;128/582 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Lawson; Patrick D.
Attorney, Agent or Firm: Steward and Kolasch, Ltd.
Claims
What is claimed is:
1. An item of footwear comprising a sole having an insole and an
outsole, said outsole resembling an inverted triangle with the base
thereof adapted to face the bottom of the foot of the wearer,
thereby enabling the foot to pivot about the apex of said inverted
triangular outsole, the height of the apex of said inverted
triangular outsole above the base of said outsole being sufficient
to cause a see-saw action around said apex and an alternate
shifting of the weight of the wearer from the heel to the toe of
the foot.
2. The item of footwear of claim 1, wherein the insole is provided
with a plurality of projections formed on at least a portion of its
surface, said projections corresponding to the plantar arch being
higher than the remaining projections so as to match the concavity
of the plantar arch.
3. The item of footwear of claim 1, wherein said sole has a beehive
construction comprising a peripheral rim and a plurality of ribs
interlaced within the peripheral rim.
4. An item of footwear as claimed in claim 1 wherein said footwear
is provided with a strap and a fastener band.
5. An item of footwear as claimed in claim 4 wherein the strap is
attached to the insole and is adapted to receive the front portion
of the foot of the wearer and the fastener band is attached to the
strap and is adapted to receive the heel portion of the foot of the
wearer.
6. An item of footwear as claimed in claim 1, wherein the
projections are only located in that portion of the insole
corresponding to the plantar arch.
Description
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to an item of footwear adapted to
improve the wearer's health by stimulating circulation of blood and
strengthening the internal organs. More specifically, the present
invention is concerned with improvements in footwear which are
capable of effecting the massage of the foot muscles without the
use of any special devices but rather only through normal use of
the footwear.
The present way of life and modern conveniences have created many
health problems due to a lack of sufficient time and facilities to
take part in the necessary physical activities required for good
health. Particularly office workers who spend substantially their
entire day in a sitting position suffer from this problem, thereby
constituting a great social problem. As a result, man's muscles
tend to become loose or dull, which causes mall function of the
internal organs and also adversely effects the nervous system. To
date, no effort has been made in the apparel field, particularly in
the footwear field to solve this problem. For example, ladies' high
heel shoes, which have become a way of life in our society,
requires the wearer to stand on tip toes to create an attractive
look or appearance. However, little consideration has been given to
the promotion of health factors in the footwear field.
In accordance with the present invention, the foregoing problems
are overcome by providing footwear which promotes good health by
giving continuous stimulation to the soles of the feet which would
otherwise be congested with blood due to the continual support of
the body weight by the feet. The stimulation to the soles of the
feet stimulates the circulation of the blood as does manual
therapy, strengthens the internal organs and provides a refreshing
and overall healthy feeling. According to the present invention,
when the footwear of the present invention is being worn, the
wearer takes a posture similar to that of ascending a hill which
causes the flexors, which are rarely used when walking on a flat
surface, to be thoroughly exercised. Such footwear is particularly
advantageous in our modern society where people, because of the
vast network of transportation, have little opportunity to take
part in active walking. As can be readily observed, the footwear of
the present invention can be readily used at home or at offices and
is also suitable for mass production.
It is therefore an object of the present invention to introduce an
overall health consideration in the footwear field by providing
footwear having a raised sole portion, that is, where the front
portion of the foot is at a higher elevation relative to the back
or heel portion of the foot.
Another object of the present invention is to provide an improved
item of footwear wherein the surface of the footwear facing the
sole of the foot is provided with a plurality of projections which
provide the effect of constant volar massage while the wearer is
walking.
Other objects and further scope of applicability of the present
invention will become apparent from the detailed description given
hereinafter; it should be understood, however, that the detailed
description and specific examples, while indicating preferred
embodiments of the invention, are given by way of illustration
only, since various changes and modifications within the spirit and
scope of the invention will become apparent to those skilled in the
art from this detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the
detailed description given hereinbelow and the accompanying
drawings, which are given by way of illustration only and thus are
not limitative of the present invention and wherein,
FIG. 1 is a schematic side view of an item of footwear apparel
according to the present invention;
FIG. 2 is a schematic side view of another embodiment of the
footwear apparel illustrated in FIG. 1;
FIG. 3 is a perspective view of a further modification of the
footwear apparel of the present invention, particularly showing the
bottom portion thereof;
FIG. 4 is a sectional view of the footwear apparel illustrated in
FIG. 3, taken along the line X--X; and
FIG. 5 is a sectional view of the footwear apparel illustrated in
FIG. 3, taken along the line Y--Y.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, the footwear of the present invention
comprises a sole 1 having a raised front portion which produces an
inclined insole 4 in contrast to a flat outsole 5. The inclined
insole 4 is provided with a plurality of projections 3. The
projections may be formed on the insole in an extensive manner so
as to cover the entire area. Alternatively, the projections may be
formed only in the plantar arch section. In the embodiment
illustrated in FIG. 2, the front portion of the outsole 5 is cut
away so as to enable the wearer to walk on both the heels and the
tip-toes, alternately. The foot 8 is held to the footwear by means
of a strap 6 and a fastener band 7 wherein pressure is exerted on
the sole of the foot by the projection 3 as the wearer walks. At
the same time, the calves of the legs are subjected to muscle use
and strain through the action of the Achilles' tendon while
walking. Thus a massage effect is given to the leg muscles, thereby
facilitating the circulation of the blood and the stimulation of
internal organs. Additionally, the flexor, which is rarely used
when walking on a flat surface is exercised and stimulated which
slows down the ageing process. In the embodiment illustrated in
FIG. 2, the massage effect is multiplied by virtue of a see-saw
action.
Referring now to FIGS. 3 to 5, the outsole 5 has a beehive-like
surface, as shown in FIG. 3, with a peripheral rim 11 and ribs 12.
The front portion of the rim, that is, the tip-toe side rim is
higher than the rear portion, that is, the heel side rim. In the
same way, the ribs 12 are gradually reduced from the tow towards
the heel, whereby the front portion of the insole surface is
raised. Projections 3 are formed on the insole surface in the same
manner as in FIGS. 1 and 2. The projections, the rim and ribs, and
the sole body are molded together and are made of an elastic
material, such as a synthetic rubber material, for example soft
polyvinyl chloride. As illustrated in FIG. 4, the insole 4 has a
convex surface in its central portion so as to match the plantar
arch properly. A strap 6 is fastened to the sole 1 through the use
of bores 10 and stoppers 9. The outsole which has a beehive surface
can be also constructed in the embodiment shown in FIG. 2 so as to
effect a tiptoe action.
Instead of providing an outsole as shown, a forwardly raised insole
can be obtained by providing a supporting bar in the under-side of
the sole, with the axis of the supporting bar being located at
right angles to the foot direction, thereby effecting a see-saw
action around the supporting bar. The foot is massaged in the same
way as described above, with the addition of a see-saw effect
centering around the bar.
By utilizing the footwear of the present invention, volar massage
is produced in the course of ordinary use at home and at the
office, thereby facilitating the circulation of the blood through
the legs and the stimulation of the internal organs. Thus physical
fatigue is substantially reduced and an overall healthy feeling is
generated.
The invention being thus described, it will be obvious to one
skilled in the art that the same may be varied in many ways. Such
variations are not to be regarded as a departure from the spirit
and scope of the invention, and all modifications as are embraced
by the appended claims are intended to be included in the purview
of the present invention.
* * * * *