WO1985001201A1 - Structure sandwich - Google Patents

Structure sandwich Download PDF

Info

Publication number
WO1985001201A1
WO1985001201A1 PCT/FI1984/000065 FI8400065W WO8501201A1 WO 1985001201 A1 WO1985001201 A1 WO 1985001201A1 FI 8400065 W FI8400065 W FI 8400065W WO 8501201 A1 WO8501201 A1 WO 8501201A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
layer
sleeping
binding
sandwich structure
Prior art date
Application number
PCT/FI1984/000065
Other languages
English (en)
Inventor
Mikko Soini
Original Assignee
Espe Oy
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 Espe Oy filed Critical Espe Oy
Publication of WO1985001201A1 publication Critical patent/WO1985001201A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • A47G9/0207—Blankets; Duvets

Definitions

  • the present invention concerns a sandwich structure, in particular one for sleeping bags.
  • the aim of the invention is to eliminate the cold bridges encountered in bags of prior art and to enable a person to spend the night in extremely cold circumtances.
  • the warmth of a sleeping bag is based on the air present in the stuffing, not on the thickness of the stuffing.
  • the warmth of a sleeping bag depends on how much the sleeping bag is able to store of that heat which the person within the bag releases. Heat is dissipated from the bag in two ways: by conduction and by radiation.
  • the bag In the simplest sleeping bags, the bag is formed of a material in which between two fabrics by quilting has been disposed a stuffing containing air. Not much air remains enclosed in a structure of this type, and it is not very warm. It is also a fact that cold bridges are established at the quilting points, through which the heat escapes.
  • the invention aims to minimize the conduction of heat making use of the air that has been stored in the sandwich structures.
  • the heat that is dissipated by radiation is minimized by the aid of reflecting layers.
  • Pig. 1 presents the cross-section of a sleeping bag material of prior art
  • OMP EET Pig. 2 presents the structure of the preceding figure, with a top fabric added thereto;
  • Pig. 3 presents a structure known in the art, having two quilted layers
  • Pig. 4 displays the cross-section of a structure according to Pig. 3 > to which a reflecting surface has been added;
  • Pig. 5 presents the cross-section of a structure according to the invention.
  • Pig. 6 shows the temperature graphs in experiments carried out with the bag of the invention in an arctic chamber
  • Pig. 7 gives the list of the symbols employed in Pig. 6.
  • the outermost layer consists of an outer layer 5 which is moisture- repelling and gives protection against the wind, and this layer is separate from the rest of the structures of this sleeping bag.
  • the sandwich structures 6,6' which comprise a stuffing 3,3' containing
  • the reflecting layers 8,8' are disposed on the outer surface of the sandwich structures 6,6', to reflect inward.
  • the outer layer 5 consists of a material which is breathing in spite of its tightness, preferably of polyamide, whereby on outermost thermos-structure is obtained.
  • the reflecting layers 8,8* have been perforated, whereby the structure is breathing.
  • the sandwich structures 6,6' remaining inside have been staggered with reference to each other, whereby the thermal radiation, part of which owing to the perforation passes through the innermost reflecting layer 8', is reflected into the interior of the bag by the outer reflecting layer 8. Since the innermost reflecting layer 8' has been disposed to be at a distance from the sleeping person, lying in the bag cannot become uncomfortable.
  • the reflecting layers 8,8' together with the light, binding layer 2,2' hold the air-containing stuffing 3.3' in its place.
  • Por heat-binding stuffing in an advantageous design according to the invention has been used "Quallofil” (Du Pont) fibre with four holes, which has an excellent thermal value and a high degree of filling, that is, the weight per unit volume is substantially lower than for any other fibres in present use.
  • a sleeping bag made of a sandwich structure according to the invention has been tested:
  • the invention has been obtained a sandwich material which has better thermal values, according to the measurements made at the Research Centre, than any sandwich structure known in the art.
  • the thermal values of the sandwich structure of the invention were found to be about 170 x 10-2 KE-2/W, while the corresponding value for conventional structures in which known artificial fibre materials have been used as air-binding stuffing, e.g. polyester wadding, is about 90-120 K ⁇ _2/W. It may be mentioned that the best down sleeping bags subjected to measurement at the Technical Research Centre have a thermal value of 135 K ⁇ _2/w.
  • thermal values of sleeping bags made using the material of the invention have been found even to improve slightly after having been washed 1 to 3 times.
  • Sleeping bags made of the material of the invention may more over be washed in a washing machine, whereby their mainten-
  • the test subjects (three persons), the sleeping bags and the sleeping bases were fitted with pick-ups appropriate for temperature measurement, these pick-ups being placed at points accurately defined in advance; and the subjects slept in the sleeping bags in an arctic chamber.
  • the temperature in the chamber at the start of the test was about -30oc, and the temperature in the closed bag went up close to +30°C in about 10 minutes.
  • the temperature in the arctic chamber was lowered to -62°C.
  • the velocity of the air flow applied was 9-10 m/s.
  • Pig. 6 shows temperature measured in the course of the test, plotted in the form of curves for easier reading. In Pig. 7 are explained the symbols used.
  • the lowermost curve 9 in Pig. 6 represents the changing of the temperature in the arctic chamber, plotted over time.
  • the curves 10,10' and 10'' higher up represent the interior temperatures of the sleeping bags during the test.
  • a sleeping bag is achieved which is appropriate for use as a winter sleeping bag, even in arctic conditions. It was established in heat camera studies at the Technical Research Centre of Finland that by the structure of the invention a sleeping bag is obtained from the surface of which virtually no heat
  • the good thermal insulating capacity of the structure of th invention is a result, aside from the favourable, abundantl air-binding structure of the Quallofil fibre, especially of the "multi-reflexion" effect obtained by the specific way o disposing the perforated heat-reflecting layers. Owing to the disposition of the perforated reflecting layers, substan tially all heat emitted by the person in the bag is re ⁇ flected back and remains in the bag.
  • the polyamide fibre which is advantageously used for the outer surface in the structure of the invention, binds no moisture.
  • the lining fabric which advantageously consists of viscose/polyamide fibre (abt. 80/20), transmits outward the skin moisture of the person sleeping in the bag, whereby the use of this bag is more pleasant than that of designs known in prior art.
  • the sandwich structure of the invention may also be applied to purposes other than sleeping bags, e.g. in heat clothing, in which case the structure may be modified in accordance with conditions, within the scope of the claims.

Landscapes

  • Laminated Bodies (AREA)

Abstract

Structure sandwich, en particulier pour sacs de couchage. La présente invention a pour but d'éliminer les inconvénients des sacs de couchage de l'art antérieur, c'est-à-dire de remédier aux ponts de froid et aux détriments causés par des allergies, ainsi que d'offrir une structure de sac de couchage légère et chaude, permettant de passer la nuit même dans des conditions artiques. Ce but est atteint en utilisant une structure sandwich d'isolation thermique comportant une couche extérieure (1) avantageusement à base de polyamide de liaison à l'épreuve de l'humidité, une couche intérieure (7) avantageusement à base de fibre de polyester ou de viscose-polyamide aéré et, entre celle-ci un remplissage contenant de l'air avantageusement à base de fibre Quallofil, disposé entre un matériau réfléchissant (8, 8') et une couche de liaison légère (2) avantageusement à base de matériau non tissé. Le matériau réfléchissant la chaleur (8, 8') est perforé et disposé en couches étagées pour réfléchir vers l'intérieur pratiquement toute la chaleur rayonnant depuis l'intérieur.
PCT/FI1984/000065 1983-09-23 1984-09-19 Structure sandwich WO1985001201A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI833433A FI833433A (fi) 1983-09-23 1983-09-23 Skiktkonstruktion.
FI833433 1983-09-23

Publications (1)

Publication Number Publication Date
WO1985001201A1 true WO1985001201A1 (fr) 1985-03-28

Family

ID=8517788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1984/000065 WO1985001201A1 (fr) 1983-09-23 1984-09-19 Structure sandwich

Country Status (3)

Country Link
EP (1) EP0155961A1 (fr)
FI (1) FI833433A (fr)
WO (1) WO1985001201A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582208A1 (fr) * 1985-05-24 1986-11-28 Leopold Fils Amboise A Sac de couchage a isolation renforcee
EP0335064A2 (fr) * 1988-03-28 1989-10-04 Günter TESCH Couverture, en particulier duvet
GB2188229B (en) * 1986-03-26 1989-11-22 Pauline Freda Molly Jones Insulated bag

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696006A (en) * 1951-02-19 1954-12-07 Clarence M Tuck Insulating material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696006A (en) * 1951-02-19 1954-12-07 Clarence M Tuck Insulating material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582208A1 (fr) * 1985-05-24 1986-11-28 Leopold Fils Amboise A Sac de couchage a isolation renforcee
GB2188229B (en) * 1986-03-26 1989-11-22 Pauline Freda Molly Jones Insulated bag
EP0335064A2 (fr) * 1988-03-28 1989-10-04 Günter TESCH Couverture, en particulier duvet
EP0335064A3 (fr) * 1988-03-28 1991-02-27 Günter TESCH Couverture, en particulier duvet

Also Published As

Publication number Publication date
EP0155961A1 (fr) 1985-10-02
FI833433A0 (fi) 1983-09-23
FI833433A (fi) 1985-03-24

Similar Documents

Publication Publication Date Title
Ukponmwan The thermal-insulation properties of fabrics
CA1042567A (fr) Sac de couchage gonflable
US3707433A (en) Insulating material
US4685155A (en) Composite insulation material
US4136222A (en) Thermally insulating sheet material
US4549323A (en) Waterbed mattress pad
JP2826572B2 (ja) 高温液体に対する保護のための衣服
KR0168638B1 (ko) 보호 가먼트
US4754514A (en) Insulating coverlet for conventional waterbeds
JPH06294006A (ja) 吸放湿吸水発熱性保温品
US4433019A (en) Insulative fabric
US5398355A (en) Three-ply insulating cover for a water bed bladder
CA2129318C (fr) Vetements pour temps froid et methode d'isolation de ceux-ci
WO1985001201A1 (fr) Structure sandwich
RU2692274C1 (ru) Теплоизоляционный текстильный материал с высокой отражательной способностью
GB2187090A (en) Mattress
US20040163178A1 (en) Thermally insulative cushion
JP3178365U (ja) 保温織物
Baxter et al. 4—thermal insulating properties of clothing
JPH03502129A (ja) カモフラージカバー
JP4392791B2 (ja) 繊維積層体
JPH09182653A (ja) 直接露営用寝袋
RU2165228C1 (ru) Пакет материалов для одежды с повышенными теплосберегающими свойствами
US20220030993A1 (en) Double-walled insulation fabrics
CN221104853U (zh) 一种加热保温的防水羽绒服

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): DK HU NO SU US

AL Designated countries for regional patents

Designated state(s): AT BE CH DE FR GB LU NL SE