Boots – shoes – and leggings – Boots and shoes – Ventilated
Patent
1989-02-27
1990-04-03
Sewell, Paul T.
Boots, shoes, and leggings
Boots and shoes
Ventilated
A43B 706
Patent
active
049128582
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to footwear which has a plurality of ventilation holes formed in the sole for greatly improving ventilation when it is worn.
PRIOR ART
Footwear with a plurality of holes formed in the sole is disclosed in Japanese Utility Model Publication 55-31921, Japanese Utility Model Publication 55-40005, Japanese Utility Model Public Disclosure 55-116504 and Japanese Utility Model Public Disclosure 59-178104.
The footwear disclosed in these publications has an elongate hole or space formed inside the sole, the elongate hole or space being communicated with the top of the sole via longitudinally formed small holes.
With the above construction, the elongate hole or space extends only in the width direction of the sole. Therefore, external air cannot flow through the sole up to the top thereof.
Further, since the small holes are upwardly perpendicular to the elongate hole or space, there is large resistance offered to the passage of external air into the interior of the footwear. Besides, since sand or dust is liable to fill the elongate hole or space extending in the lateral direction, there is a possibility of the hole or space being clogged, which results in the loss of ventilation.
An object of the invention is to provide footwear which eliminates the drawback of the prior art footwear having communication holes, is excellent in ventilation with respect to the interior of the footwear and does not feel uncomfortable when worn.
SUMMARY OF THE INVENTION
According to the invention, there is provided footwear having a sole consisting of at least an upper member and a lower member which are bonded together, the upper member being formed with a plurality of holes penetrating it in the thickness direction, the lower member having its upper surface formed with grooves each having a stem portion communicating with a corresponding one of the holes and an end portion open on the side of the lower member, the end portion of said grooves being deeper than the stem portion, the top of the upper member communicating with the side of the lower member through ventilation holes consisting of the holes and grooves.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a plan view, partly cut away, showing one embodiment of the footwear according to the invention;
FIG. 2 is a side view, partly broken away, showing the same;
FIG. 3 is a fragmentary sectional view showing the principal part of the same; and
FIG. 4 is a side view, partly broken away, showing a different embodiment of the footwear according to the invention.
BEST MODE FOR WORKING THE INVENTION
The Figures illustrate the inside of footwear, particularly a sole 1. The sole 1 consists of upper and lower members 2 and 3 which are bonded together by an adhesive or the like. The upper and lower members 2 and 3 consist of rubber, foamed synthetic resin, leather, etc. The upper member 2 has a plurality of holes 4 penetrating it in the thickness direction.
It is desired to form the holes 4 at positions not in contact with the sole of the wearer, i.e., spaces between toes, portions surrounding the heel and the arch of the foot.
The top of the lower member 3 is formed with grooves 5 in correspondence to the holes 4. The grooves 5 extend radially from their stems open at the top surface of the lower member 3 toward the edge thereof. The grooves 5 are inclined such that their stems 6 are shallow and their ends 7 are deep. If necessary, the end 7 may be broader than the stem 6.
The grooves 5 are each formed for each of the holes 4 of the upper member 2. When the upper and lower members 2 and 3 are applied together, the lower end of each hole 4 communicates with the stem 6 of the corresponding groove 5, and a ventilation hole 8 is constituted by the hole 4 and groove 5. The top of the upper member 2 communicates through the ventilation holes 8 with the sides of the sole 1 and thence with the atmosphere. The space of the ventilation hole 8 becomes narrower inwardly from the open end on the side of the sole 1 by the presence of the groove 5.
REFERENCES:
patent: 1962822 (1936-06-01), Krakou
patent: 2720041 (1955-10-01), Kajtar
Japan Patent Application 54-40744, Goromayo An Air Permeable Sole, Mar. 17, 1979.
Japan Patent Application 54-40745, Keijiro Suzuki-Shoes with an Air Permeable Channel, Mar. 17, 1989.
Japan Patent Application 55-129002, Shigeo Kojima-A Sole Which Prevents Moisture, Sep. 11, 1980.
Meyers Andrew D.
Mochizuki Hideto
Ohkubo Michiei
Sewell Paul T.
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