US20080200087A1 - Ventilation material - Google Patents

Ventilation material Download PDF

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Publication number
US20080200087A1
US20080200087A1 US11/708,514 US70851407A US2008200087A1 US 20080200087 A1 US20080200087 A1 US 20080200087A1 US 70851407 A US70851407 A US 70851407A US 2008200087 A1 US2008200087 A1 US 2008200087A1
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US
United States
Prior art keywords
support members
water
layer
impermeable
water vapor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/708,514
Inventor
Shi-Chuan Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US11/708,514 priority Critical patent/US20080200087A1/en
Publication of US20080200087A1 publication Critical patent/US20080200087A1/en
Priority to US12/467,631 priority patent/US20090220760A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear
    • A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/046—Devices for ventilating, cooling or heating for ventilating or cooling without active means, e.g. with openings or heat conductors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/002—Mattress or cushion tickings or covers
    • A47C27/007—Mattress or cushion tickings or covers permeable to liquid or air in a special way
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/28—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer impregnated with or embedded in a plastic substance
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/28—Means for ventilation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/40—Knit fabric [i.e., knit strand or strip material]
    • Y10T442/406—Including parallel strips

Definitions

  • the invention relates to ventilation materials and more particularly to a three-layer sheet-like article having an improved ventilation structure formed therein as a material for manufacturing sheet of cloth, mat, footwear, mattress cover, or the like.
  • Footwear, protective devices for athletes, mats, or mattress covers typically have a ventilation material formed therein for bringing a feeling of comfort to a person wearing same or lying or sitting thereon.
  • a sheet of article having a conventional ventilation material formed therein is shown in FIGS. 4 , 5 and 6 .
  • the sheet of article comprises a lower layer of knitted fabric 30 formed of a water-impermeable and water vapor-permeable fabric, an upper layer of knitted fabric 32 formed of a water-impermeable and water vapor-permeable fabric, and an intermediate layer of ventilation material 31 formed between the upper and lower layers 32 and 30 .
  • the layer of ventilation material 31 comprises a plurality of longitudinal apertures 311 arranged in parallel rows as air ducts.
  • the sheet of article It is designed to cause the sheet of article to have a ventilation effect.
  • the apertures 311 are too small to conduct sufficient air flow through the layers 30 , 31 , and 32 .
  • the heat absorbing area of the layer of ventilation material 31 is relatively large.
  • a person wearing a pair of shoes having the layer of ventilation material 31 formed therein may feel a degree of discomfort and coldness.
  • the layer of ventilation material 31 is an integral pad having the same stiffness in every portion.
  • the support members are shaped as triangle.
  • the support members are formed of rubber, plastic, or bamboo charcoal.
  • the hardness of a first portion of the support members is higher than that of the remaining portions of the support members.
  • the support members have a projecting portion contacting either the upper layer or the lower layer.
  • FIG. 1 is a perspective view of a sheet of article incorporating a preferred embodiment of ventilation material according to the invention
  • FIG. 2 is a partially broken away view of FIG. 1 ;
  • FIG. 3 is a longitudinal sectional view of an enlarged portion of FIG. 1 ;
  • FIG. 4 is a perspective view of a sheet of article having a conventional ventilation material formed therein;
  • FIG. 5 is an exploded view of FIG. 4 ;
  • FIG. 6 is a longitudinal sectional view of an enlarged portion of FIG. 4 .
  • the sheet of article comprises a lower layer of knitted fabric 10 formed of a water-impermeable and water vapor-permeable fabric, an upper layer of knitted fabric 12 formed of a water-impermeable and water vapor-permeable fabric, and a plurality of triangular support members 11 formed between the upper and lower layers 12 and 10 and arranged in parallel rows.
  • the support members 11 are formed of rubber, plastic or the like having a desired stiffness.
  • the support members 11 are formed of bamboo charcoal for specifically absorbing smell and moisture. Further, shape of the support member 11 other than triangle is contemplated by the invention.
  • stiffness of some support members 11 may be different from that of the remaining support members 11 depending on applications. For example, stiffness enhancement of some portions of a protective device for athlete made of the sheet of article is desired. As shown in FIG. 2 , one side of one support member 11 of one row is parallel with one side of one support member 11 of an adjacent row. Note that the orientation of the support members 11 other than above is also contemplated by the invention.
  • a plurality of air ducts 111 are formed between the layers 10 and 12 .
  • the air ducts 111 are reticulated with the support members 11 disposed among them.
  • a total space occupied by the air ducts 111 is sufficiently large.
  • the desired ventilation effect can be achieved by conducting air flow through the lower layer 10 , the air ducts 111 , and the upper layer 12 .
  • padding material such as foam can be placed in some air ducts 111 for increasing the shock absorbing capability of the sheet of article without adversely affecting the ventilation effect.
  • a mat incorporating the support members 11 with thus formed air ducts 111 can be placed on a sheet of cloth. Thereafter, person(s) may sit on the mat.
  • the mat can bring a degree of comfort to the person(s) sitting thereon.
  • the support members 11 have a projecting portion contacting either the upper layer 12 or the lower layer 10 such that a massaging effect to the corresponding body portion is carried out when a person sits on, for example, a mat having the support members 11 formed therein.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Laminated Bodies (AREA)

Abstract

A ventilation structure as a material for manufacturing sheet of cloth, mat, footwear, mattress cover, etc. is disclosed that includes a lower layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric; an upper layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric; a plurality of support members formed between the upper and the lower layers; and a plurality of reticulated air ducts formed between the upper and the lower layers with the support members disposed thereamong. In one embodiment, the support members are shaped as triangle. Preferably, the support members are formed of plastic. In another embodiment, the hardness of a first portion of the support members is higher than that of the remaining portions of the support members. In yet another embodiment, the support members have a projecting portion contacting either the upper layer or the lower layer.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of Invention
  • The invention relates to ventilation materials and more particularly to a three-layer sheet-like article having an improved ventilation structure formed therein as a material for manufacturing sheet of cloth, mat, footwear, mattress cover, or the like.
  • 2. Description of Related Art
  • Footwear, protective devices for athletes, mats, or mattress covers typically have a ventilation material formed therein for bringing a feeling of comfort to a person wearing same or lying or sitting thereon. A sheet of article having a conventional ventilation material formed therein is shown in FIGS. 4, 5 and 6. The sheet of article comprises a lower layer of knitted fabric 30 formed of a water-impermeable and water vapor-permeable fabric, an upper layer of knitted fabric 32 formed of a water-impermeable and water vapor-permeable fabric, and an intermediate layer of ventilation material 31 formed between the upper and lower layers 32 and 30. The layer of ventilation material 31 comprises a plurality of longitudinal apertures 311 arranged in parallel rows as air ducts.
  • It is designed to cause the sheet of article to have a ventilation effect. However, in fact, it is not true. In detail, the apertures 311 are too small to conduct sufficient air flow through the layers 30, 31, and 32. Further, the heat absorbing area of the layer of ventilation material 31 is relatively large. Thus, for example, a person wearing a pair of shoes having the layer of ventilation material 31 formed therein may feel a degree of discomfort and coldness. Furthermore, the layer of ventilation material 31 is an integral pad having the same stiffness in every portion. Thus, it is impossible of producing an article (e.g., a protective device for athlete) requiring some enhanced portions as protection by means of the well known ventilation material 31. Thus, the need for improvement still exists.
    • SUMMARY OF THE INVENTION
  • It is therefore one object of the invention to provide a ventilation structure, comprising a lower layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric; an upper layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric; a plurality of support members formed between the upper and the lower layers; and a plurality of reticulated air ducts formed between the upper and the lower layers with the support members disposed thereamong.
  • In one aspect of the invention the support members are shaped as triangle.
  • In another aspect of the invention the support members are formed of rubber, plastic, or bamboo charcoal.
  • In a further aspect of the invention the hardness of a first portion of the support members is higher than that of the remaining portions of the support members.
  • In a yet further aspect of the invention the support members have a projecting portion contacting either the upper layer or the lower layer.
  • The above and other objects, features and advantages of the invention will become apparent from the following detailed description taken with the accompanying drawings.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of a sheet of article incorporating a preferred embodiment of ventilation material according to the invention;
  • FIG. 2 is a partially broken away view of FIG. 1;
  • FIG. 3 is a longitudinal sectional view of an enlarged portion of FIG. 1;
  • FIG. 4 is a perspective view of a sheet of article having a conventional ventilation material formed therein;
  • FIG. 5 is an exploded view of FIG. 4; and
  • FIG. 6 is a longitudinal sectional view of an enlarged portion of FIG. 4.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring to FIGS. 1, 2 and 3, a sheet of article incorporating a preferred embodiment of ventilation material according to the invention is shown. The sheet of article comprises a lower layer of knitted fabric 10 formed of a water-impermeable and water vapor-permeable fabric, an upper layer of knitted fabric 12 formed of a water-impermeable and water vapor-permeable fabric, and a plurality of triangular support members 11 formed between the upper and lower layers 12 and 10 and arranged in parallel rows. Preferably, the support members 11 are formed of rubber, plastic or the like having a desired stiffness. Alternatively, the support members 11 are formed of bamboo charcoal for specifically absorbing smell and moisture. Further, shape of the support member 11 other than triangle is contemplated by the invention. In addition, stiffness of some support members 11 may be different from that of the remaining support members 11 depending on applications. For example, stiffness enhancement of some portions of a protective device for athlete made of the sheet of article is desired. As shown in FIG. 2, one side of one support member 11 of one row is parallel with one side of one support member 11 of an adjacent row. Note that the orientation of the support members 11 other than above is also contemplated by the invention.
  • Referring to FIG. 3 specifically, a plurality of air ducts 111 are formed between the layers 10 and 12. Also, the air ducts 111 are reticulated with the support members 11 disposed among them. Advantageously, a total space occupied by the air ducts 111 is sufficiently large. Thus, the desired ventilation effect can be achieved by conducting air flow through the lower layer 10, the air ducts 111, and the upper layer 12. Hence, for example, a person wearing a pair of shoes having the intermediate support members 11 formed therein may feel a degree of comfort. Additionally, padding material such as foam can be placed in some air ducts 111 for increasing the shock absorbing capability of the sheet of article without adversely affecting the ventilation effect.
  • In one application, a mat incorporating the support members 11 with thus formed air ducts 111 can be placed on a sheet of cloth. Thereafter, person(s) may sit on the mat. Advantageously, the mat can bring a degree of comfort to the person(s) sitting thereon.
  • Alternatively, the support members 11 have a projecting portion contacting either the upper layer 12 or the lower layer 10 such that a massaging effect to the corresponding body portion is carried out when a person sits on, for example, a mat having the support members 11 formed therein.
  • While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.

Claims (7)

1. A ventilation structure, comprising:
a lower layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric;
an upper layer of knitted fabric formed of a water-impermeable and water vapor-permeable fabric;
a plurality of support members formed between the upper and the lower layers; and
a plurality of reticulated air ducts formed between the upper and the lower layers with the support members disposed thereamong.
2. The ventilation structure of claim 1, wherein the support members are shaped as triangle.
3. (canceled)
4. The ventilation structure of claim 1, wherein the support members are formed of plastic.
5. (canceled)
6. The ventilation structure of claim 1, wherein the hardness of a first portion of the support members is higher than that of the remaining portions of the support members.
7. The ventilation structure of claim 1, wherein the support members have a projecting portion contacting either the upper layer or the lower layer.
US11/708,514 2007-02-20 2007-02-20 Ventilation material Abandoned US20080200087A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/708,514 US20080200087A1 (en) 2007-02-20 2007-02-20 Ventilation material
US12/467,631 US20090220760A1 (en) 2007-02-20 2009-05-18 Ventilation material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/708,514 US20080200087A1 (en) 2007-02-20 2007-02-20 Ventilation material

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/467,631 Continuation-In-Part US20090220760A1 (en) 2007-02-20 2009-05-18 Ventilation material

Publications (1)

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US20080200087A1 true US20080200087A1 (en) 2008-08-21

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Application Number Title Priority Date Filing Date
US11/708,514 Abandoned US20080200087A1 (en) 2007-02-20 2007-02-20 Ventilation material

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090220760A1 (en) * 2007-02-20 2009-09-03 Shi-Chuan Chen Ventilation material
US20240081470A1 (en) * 2022-09-14 2024-03-14 Lululemon Athletica Canada Inc. Upper for Article of Footwear with Forefoot Airflow Features

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257742A (en) * 1963-02-08 1966-06-28 Robert S Feinberg Foot support for shoes
US5014363A (en) * 1988-06-13 1991-05-14 W. L. Gore & Associates, Inc. Wearing apparel with ventilation material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257742A (en) * 1963-02-08 1966-06-28 Robert S Feinberg Foot support for shoes
US5014363A (en) * 1988-06-13 1991-05-14 W. L. Gore & Associates, Inc. Wearing apparel with ventilation material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090220760A1 (en) * 2007-02-20 2009-09-03 Shi-Chuan Chen Ventilation material
US20240081470A1 (en) * 2022-09-14 2024-03-14 Lululemon Athletica Canada Inc. Upper for Article of Footwear with Forefoot Airflow Features

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