U.S. patent application number 10/878025 was filed with the patent office on 2005-12-29 for shoe sole and molds for makig the sole.
Invention is credited to Wang, Hsu-Pang.
Application Number | 20050283997 10/878025 |
Document ID | / |
Family ID | 35503953 |
Filed Date | 2005-12-29 |
United States Patent
Application |
20050283997 |
Kind Code |
A1 |
Wang, Hsu-Pang |
December 29, 2005 |
Shoe sole and molds for makig the sole
Abstract
A shoe sole includes a chamber defined in an underside of the
heel portion and an air-permeable member is received in the
chamber. An air escaping area including a plurality of passages is
defined in the underside of the body and communicates with the
chamber. A plurality of holes are defined through a top of the boy
and communicate with the air escaping area. A bottom piece is
attached to the underside of the body and cover the air escaping
area and the chamber. The sole is made by way of molding and by
foam material.
Inventors: |
Wang, Hsu-Pang; (Feng Yuan
City, TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
35503953 |
Appl. No.: |
10/878025 |
Filed: |
June 29, 2004 |
Current U.S.
Class: |
36/3B |
Current CPC
Class: |
A43B 7/081 20130101 |
Class at
Publication: |
036/003.00B |
International
Class: |
A43B 007/06 |
Claims
What is claimed is:
1. A shoe sole comprising: a body including a thick heel portion
and a chamber defined in an underside of the heel portion, an air
escaping area defined in the underside of the body and
communicating with the chamber, a plurality of holes defined
through a top of the boy and communicating with the air escaping
area; an air-permeable member received in the chamber, and a bottom
piece attached to the underside of the body and covering the air
escaping area and the chamber.
2. The sole as claimed in claim 1, wherein the air escaping area
includes a passage and a plurality of branch passages, the passage
being in communication between the chamber and branch passages.
3. The sole as claimed in claim 1, wherein a convex portion
protrudes upward from the top of the body of the sole and is
located corresponding to the chamber.
4. The sole as claimed in claim 1 further comprising a fabric layer
attached to the top of the body of the sole and having a plurality
of through hole which are in alignment with the holes in the body
of the sole.
5. The sole as claimed in claim 1, wherein the air-permeable member
includes a plurality of upright holes defined therethrough.
6. The sole as claimed in claim 1 further comprising two valves
located beside the air-permeable member.
7. A mold assembly for making a shoe sole, comprising: a first mold
having a first concavity defined in a surface thereof and a
plurality of rods extending from an inside of the first concavity,
and a second mold having a second concavity defined in a surface
thereof and a protrusion extending from an inside of the second
concavity, a first ridge and a plurality of second ridges extending
from the inside of the second concavity, the first ridge connected
between the protrusion and the second ridges.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a shoe sole including a
chamber in which an air-permeable member is received. A plurality
of passages and holes communicate with the chamber so as to have a
ventilation feature when the user wears shoes with the soles.
BACKGROUND OF THE INVENTION
[0002] A conventional shoe sole is disclosed in FIG. 1, and
generally includes a PU body 10 with a recess 11 defined in an
underside thereof and a flexible bladder 12 is attached to the body
10 and received in the recess 11. When the user wears the shoes,
the bladder 12 provides a cushion feature to protect the ankles of
the user's feet. A bottom piece 14 is attached to the underside of
the body 10 of the sole. A passage 121 is defined in the underside
of the body 10 and a chamber 13 is located in a front end of the
body 10 of the sole plurality of holes 131. A valve 121A is located
in communication between the passage 121 and the chamber 13. Air in
the passage 121 is squeezed out via the valve 121A and goes out via
holes 131 defined through a top of the body 10 of the sole. It is
noted that the connection of the bladder 12 and the body 10 cannot
be maintained for a long period of time because the adhesive
becomes stiff and hardened and the bladder 12 tends to be peeled
off from the body 10 of the sole. The processes for adhering the
bladder 12 to the body 10 of the sole is a time consuming job.
[0003] The present invention intends to provide a shoe sole that
includes a chamber at the heel portion of the sole and an
air-permeable member is received in the chamber. A passage is
defined in an underside of the sole and includes a plurality of
branch passages which are in communication with holes defined
through the sole. The sole is made by foam material and the chamber
and passages are formed simultaneously by molding the sole.
SUMMARY OF THE INVENTION
[0004] The present invention relates to a shoe sole which comprises
a body including a thick heel portion and a chamber is defined in
an underside of the heel portion. An air escaping area is defined
in the underside of the body and in communication with the chamber.
A plurality of holes are defined through a top of the boy and
communicate with the air escaping area. An air-permeable member is
received in the chamber. A bottom piece is attached to the
underside of the body and covers the air escaping area and the
chamber.
[0005] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings which show, for purposes of illustration
only, a preferred embodiment in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a cross sectional view to show a conventional shoe
sole;
[0007] FIG. 2 is a perspective view to show the shoe sole of the
present invention;
[0008] FIG. 3 shows the shoe sole of the present invention is
installed in a shoe;
[0009] FIG. 4 is an exploded view to show the shoe sole of the
present invention;
[0010] FIG. 5 shows the mold assembly for making the shoe sole of
the present invention;
[0011] FIG. 6 shows the sole is formed in the mold assembly;
[0012] FIG. 7 is a cross sectional view to show the shoe sole of
the present invention;
[0013] FIG. 8 shows air is squeezed when the air-permeable member
is pressed;
[0014] FIG. 9 shows two valves are located beside the air-permeable
member is pressed;
[0015] FIG. 10 shows air is squeezed when the air-permeable member
is pressed and goes out from the valve;
[0016] FIG. 11 is an exploded view to show another embodiment of
the shoe sole of the present invention, and
[0017] FIG. 12 is a cross sectional view to show the shoe sole of
the present invention in FIG. 11.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0018] Referring to FIGS. 2 to 4 and 7, the shoe sole of the
present invention comprises a body 30 made of PU foam material and
including a thick heel portion 32. A chamber 320 is defined in an
underside of the heel portion 32 and a convex portion protrudes
upward from the top of the body 30 of the sole and located
corresponding to the chamber 320. An air escaping area 33 is
defined in the underside of the body 30 and includes a passage 21
and a plurality of branch passages 330. The passage 321 is in
communication between the chamber 320 and branch passages 330. A
plurality of holes 331 are defined through a top of the boy 30 and
communicate with the branch passages 330 of the air escaping area
33. An air-permeable member 40 is received in the chamber 320 and
includes a plurality of upright holes 41 defined therethrough.
[0019] A bottom piece 50 is attached to the underside of the body
30 and covers the air escaping area 33 and the chamber 320. A
fabric layer 31 is attached to the top of the body 30 of the sole
and has a plurality of through holes 310 which are in alignment
with the holes 330 in the body 30 of the sole.
[0020] Further referring to FIG. 8, the sole is inserted in the
shoe 55 and when the user steps on the convex portion, the chamber
320 is squeezed and the air-permeable member 40 is deformed. Air in
the chamber 320 is pushed through the passage 321 and the
sub-passages 330, and escapes from the holes 331 and through holes
310. This provides a good ventilation to the interior space of the
shoe 55.
[0021] FIGS. 9 and 10 shows that two valves 36 are located beside
the air-permeable member 40. One of which allows air to go out from
the chamber 320 and the other one allows the air to enter into the
chamber 320.
[0022] As shown in FIGS. 11 and 12, the sole can be made to have
the chamber 320 and the air escaping area 33 defined in a top
thereof and the air-permeable member 40 is received in the chamber
320. A top piece 500 is attached to the top of the body 30 of the
sole to cover the chamber 320 and the air escaping area 33. A
plurality of holes 501 are defined through the top piece 500 and
communicate with the air escaping area 33. A fabric layer 31 is
attached to the top of the top piece 500 and has a plurality of
through holes 310 which are in alignment with the holes 501 in the
top piece 500.
[0023] Referring to FIGS. 1, 5 and 6, the mold assembly 60 for
making the shoe sole comprises a first mold 61 having a first
concavity 611 defined in a surface thereof and a second mold 62
having a second concavity 621 defined in a surface thereof. A
plurality of rods 611A extend from an inside of the first concavity
611 and a protrusion 621A extends from an inside of the second
concavity 621. A first ridge 621C and a plurality of second ridges
621B extend from the inside of the second concavity 621. The first
ridge 621C is connected between the protrusion 621A and the second
ridges 621B. The fabric layer 31 is put in the first concavity 611
and PU foam material is poured in the first and second concavities
611 and 621 when the two surfaces of the first and second molds 61
and 62 are matched with each other. The mold assembly 60 is heated
to let the foam material fill the space of the first and second
concavities 611, 621. The chamber 320, the air escaping area 33 and
the holes 331 are formed simultaneously.
[0024] While we have shown and described the embodiment in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
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