EP0319968A2
Expired / Lapsed
EP
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Unidirectional air flow ventilating shoe and insole
Assignee: Individual
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Filing: 1988-12-07
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Granted: —
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Expires: 2008-12-07
Abstract
Abstract A unidirectional airflow ventilating shoe having an ordinary upper and sole. A unidirectional airflow ventilating layer (1) is provided on the sole inside the shoe. The ventilating layer has a compressible cavity (2), air inlet (3), main airflow passage (4), branches (5) and air outlets (6). Fresh air outside the shoe is forcedly unidirectionally sucked into the ventilating layer and blown out to fore part inside the shoe. To convenience sake, a unidirectional airflow ventilating insole can be made for any kind of shoes. The insole comprise an upper portion (7) and lower portion (8). The structure and shape of the upper portion is the same as that of the ventilating layer (1). Lower portion (8) can either form an entirety with upper portion (7), or be an elastic substrate adhered to the bottom surface of the upper portion with adhesives. The insole can be used in any kind of shoes and attain the same resuit as unidirectional airflow ventilating shoes of the present invention.
Inventors
- 👤 Chikong Chu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 14:07
CPC Classifications
A; A43; A43B; A43B17/00; A43B17/08; A43B7/00; A43B7/06; A43B7/08; A43B7/081
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
118 words
A unidirectional airflow ventilating shoe comprising an upper portion and a sole, characterized in that a unidirectional airflow ventilating layer is provided inside the shoe on the sole, the ventilating layer having a compressible cavity at the bottom surface in the heel portion of the layer; an elastic closable air inlet open to the inside of the shoe at back upper portion of the cavity; and an elastic main airflow passage at the front portion of the cavity leading to the fore part of the layer, the fore end of the airflow passage being divided into several branches, the fore end of each branch being provided with an air outlet leading to the upper surface of the layer.
Claim 2
Dependent Claim
118 words
A unidirectional airflow ventilating shoe comprising an upper portion and a sole, characterized in that a unidirectional airflow ventilating layer is provided inside the shoe on the sole, the ventilating layer having a compressible cavity at the bottom surface in the heel portion of the layer; an elastic closable air inlet open to the inside of the shoe at back upper portion of the cavity; and an elastic main airflow passage at the front portion of the cavity leading to the fore part of the layer, the fore end of the airflow passage being divided into several branches, the fore end of each branch being provided with an air outlet leading to the upper surface of the layer.
Claim 3
Dependent Claim
29 words
The ventilating shoe according to claim 1, characterized in that the cavity is arch-shaped and the cross section of the air inlet has the shape of a sharp leaf.
Claim 4
Dependent Claim
30 words
The ventilating shoe according to claim 1, characterized in that the cross section of the main airflow passage is arch-shaped, which is completely closed when the ventilating layer is bent.
Claim 5
Dependent Claim
33 words
The ventilating shoe according to claim 1, characterized in that the numbers of the branches are 2 - 4 and the cross section of each branch is in the shape of a semi-circle.
Claim 6
Dependent Claim
19 words
The ventilating shoe according to claim 1, characterized in that the cross section of each air outlet is cylindrical.
Claim 7
Dependent Claim
115 words
A unidirectional airflow ventilating insole for shoes, characterized by comprising an upper portion and a lower portion, the upper portion having a compressible cavity in the heel portion of the insole; an elastic closable air inlet at back upper portion of the cavity open to the back upper surface of the insole; and an elastic airflow passage at the front of the cavity leading to the fore part of the insole, the fore end of the main airfiow passage being divided into several branches, the fore end of each branch being provided with an air outlet leading to the upper surface of the insole, the lower portion being an elastic sole-shaped plane bottom of insole.
Claim 8
Dependent Claim
115 words
A unidirectional airflow ventilating insole for shoes, characterized by comprising an upper portion and a lower portion, the upper portion having a compressible cavity in the heel portion of the insole; an elastic closable air inlet at back upper portion of the cavity open to the back upper surface of the insole; and an elastic airflow passage at the front of the cavity leading to the fore part of the insole, the fore end of the main airfiow passage being divided into several branches, the fore end of each branch being provided with an air outlet leading to the upper surface of the insole, the lower portion being an elastic sole-shaped plane bottom of insole.
Claim 9
Dependent Claim
29 words
The ventilating insole according to claim 6, characterized in that the cavity is arch-shaped and the cross section of the air inlet has the shape of a sharp leaf.
Claim 10
Dependent Claim
29 words
The ventilating insole according to claim 6, characterized in that the cross section of the main airflow passage is arch-shaped, which is completely closed when the insole is bent.
Claim 11
Dependent Claim
32 words
The ventilating insole according to claim 6, characterized in that the numbers of the branches are 2 - 4, the cross section of each branch being in the shape of a semi-circle.
Claim 12
Dependent Claim
18 words
The ventilating insole according to claim 6, characterized in that the cross section of each outlet is cylindrical.
Claim 13
Dependent Claim
49 words
The ventilating insole according to claim 6, characterized in that the lower portion of the insole is separated from the upper portion, which is an elastic substrate in the shape of the sole and is adhered to the bottom surface of the upper portion of the insole with adhesives.
References Cited (Backward Citations)
No citation records indexed.
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