WO2004021821A1

WO2004021821A1 - The indoor cushion shoes

Info

Publication number: WO2004021821A1
Application number: PCT/KR2002/002087
Authority: WO
Inventors: Chang Ho Kim
Original assignee: Chang Ho Kim
Priority date: 2002-09-05
Filing date: 2002-11-09
Publication date: 2004-03-18
Also published as: AU2002353589A1; KR200299130Y1

Abstract

The indoor shoes body is composed of the upper sole, the lower sole and the middle-section. The space (4) in the lower sole (3) presses the cushion (5-2) to produce the cushion heel (7), and the arch-shaped space (4-1) in the lower sole presses the cushion (5-2) to produce middle cushion (7-1). The front space (4-2) in the lower sole presses the cushion (5-2) to produce the front cushion (7-1), and the both ends of the strip (3-3) between the cushions (6-1, 6-2) have the ventilation funnel (5-4) attached to the inflows for the appropriate air distribution while walking. It contributes greatly to the improvement of the shoe culture with the provision of comfort and a sense of security to users.

Description

THE INDOOR CUSHION SHOES

BACKGROUND OF THE INVENTION

Field of the Invention:

This invention relates to the air-cushioned insole shoes. As the people live at high buildings like apartment and stay on the concrete floor in work places or schools and the style of living is being moved to automation, the percentage of indoor shoes use is gradually increasing.

Description of the Prior Art:

Generally, the indoor shoes should keep warm and be soft, quiet, and should not

damage the floor. Most of the indoor shoes were easy to lose warm and cushion, and made noise or gave damage to the floor. To deal successfully with those problems the air cushion was used for long-lasting cushion and quietness. But it also couldn't keep the balance so

that users couldn't maintain equilibrium and stability. And the other way of the air- cushioned shoe making was to inflate the hose with air or nitrogen. With these shoes, the air or nitrogen in the air bag would be deflated according to the TPU material characteristics. So the old way of shoe making used to bring about the problem if it is used long time. SUMMARY OF THE INVENTION

The invention relates to the comfortable shoes, which have the air-cushioned sole. In detail, the upper sole, which is composed of an upper cloth (2-1), a connection line (2-2) and protuberances (2a) for acupressure therapy, and the lower sole, which is composed of an outlining strip (3-1), a middle strip (3-2) and a front strip (3-3). The lower sole with the spaces (4, 4-1, 4-2) should be tightened to the air cushions (6, 6-1, 6-2) in the middle section (5, 5-2) so that the separated air cushions (7, 7-1, 7-2) protrude. At both ends of the front strip (3-3), the inflows (3-4) are built. And the ventilation funnels (5-4) at the inflows are installed between the air cushions (6-1, 6-2) to distribute the air inside evenly so that the user disperse his weight uniformly and feel comfortable and have acupressure therapy.

BRIEF DESCRIPTION OF THE DRAWINGS

The aforementioned aspects and other features of the present invention will

be explained in the following description, taken in conjunction with the

accompanying drawings, wherein:

Fig 1 is drawing in parts.

Fig 2 is drawing of the invention Fig 3 is the cross-sectional view of A- A line in Fig 2 Fig 4 is the cross-sectional view of B-B line in Fig 2 *Main parts are as follows.

1. body 2. upper sole 2a. protuberances for acupressure therapy 2- 1. upper cloth 2-2. outlining strip 2-3,2-4. joining part 3. lower sole 3-1. outlining strip 3-2. middle strip

3-3. front strip 3-4. inflow 4,4-1,4-2. space

5. middle section 5-1. surface 5-2. air cushion

5-3. connection line 5-4. ventilation funnel 6,6-1,6-2. air cushion 7. heel cushion 7-1. middle cushion 7-2. front cushion

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The constituting parts characteristics and each function are as follows. The indoor shoes body is composed of the upper sole, the lower sole and the middle-section. The upper sole (2), which is made of urethane and cloth, has protuberances (2a) and an upper strip (2-1) and an outlining strip (2-2). The lower sole (3) made of polypropylene resin and etc has a outlining strip (3-1), a middle strip (3-2) and a front strip (3-3) which has inflows at both ends. Those strips provide the spaces for the air cushions. The middle part made of polyurethane and etc has a surface, an air cushion and a connection line. The inside of the air cushion (5-2) is divided into three cushions (6, 6-1 , 6-2), and it is inflated with low-pressure nitrogen or air.

First of all, unite the lower sole (3) with the middle section (5, 5-2), and weld the outlining

strip (2-2) and the joining parts (2-3, 2-4) of the upper sole into the surface (5-1) and the connection line (5-3) of the middle section. Next weld the outlining strip (3-1) of the lower sole, the outlining strip (2-2) of the upper sole and the connection line (5-3) together using a pressing machine.

The space (4) in the lower sole presses the cushion (5-2) to produce the cushion heel (7), and the arch-shaped space (4-1) in the lower sole presses the cushion (5-2) to produce the

middle cushion (7-1).

The front space (4-2) in the lower sole presses the cushion (5-2) to produce the front cushion (7-1), and the both ends of the strip (3-3) between the cushions (6-1, 6-2) have the ventilation funnels (5-4) attached to the inflows for the appropriate air distribution while walking.

The existing way of air inflation into an air bag is merely the inflation into a hose forcibly.

With this existing method, it will be deflated by the TPU material's contraction. But it is possible to decrease the air loss using the technique, which stores the air in the bag naturally. The invention has three separate air bags for the comfortable foot bending. The cushions

help users to have comfortable walking, and shock absorption, power while walking. So users will have comfortable walking and amazing shock absorption. As mentioned above, the invention is for the indoor shoes used at living rooms, work places or schools.

With the invention, the weight on heel is absorbed by the heel cushion (7), and the weight on the bottom of the foot is absorbed by the front and the middle cushions. When a user bends his foot, some air in the front air cushion (6-2) moves to the middle air cushion (6-1) through the ventilation funnels for the user's balance.

When a user stretches his foot, some air in the middle air cushion (6-1) moves to the front air cushion (6-2) through the ventilation funnel (5-4). And it keeps warm due to the middle section made from soft polyurethane and makes a user feel soft when it touches the floor. It never damages the floor or makes noise, and it is light and non-skid. Also it gives a user stability and lightness.

Claims

WHAT IS CLAIMED IS:

1. It is characterized in welding method, which produces three cushions (7, 7- 1 , 7-2)

pressing the upper sole (2); protuberances and an upper cloth and a connection line (2-2), and the lower sole (3); the outlining strip (3-1) and the middle strip (3-2) and the front strip (3-3), and the middle section (5); the air cushion (5-2) together.

2. It is characterized in the ventilation funnels (5-4), which are at both ends on the front strip (3-3) for the flow between the air cushions (6-1, 6-2)