[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO1987007489A1 - Inflatable cushion for supporting the back of the head - Google Patents

Inflatable cushion for supporting the back of the head Download PDF

Info

Publication number
WO1987007489A1
WO1987007489A1 PCT/DK1987/000066 DK8700066W WO8707489A1 WO 1987007489 A1 WO1987007489 A1 WO 1987007489A1 DK 8700066 W DK8700066 W DK 8700066W WO 8707489 A1 WO8707489 A1 WO 8707489A1
Authority
WO
WIPO (PCT)
Prior art keywords
cushion
bottom part
shape
user
head
Prior art date
Application number
PCT/DK1987/000066
Other languages
French (fr)
Inventor
Thorbjørn PETERSEN (deceased)
Original Assignee
PETERSEN, Jette (legal representative of PETERSEN,
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 PETERSEN, Jette (legal representative of PETERSEN, filed Critical PETERSEN, Jette (legal representative of PETERSEN,
Publication of WO1987007489A1 publication Critical patent/WO1987007489A1/en

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
    • A47G9/10—Pillows
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • A47C7/383—Detachable or loose head- or neck-supports, e.g. horse-shoe shaped
    • 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
    • A47G2009/003—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows with inflatable members

Definitions

  • Inflatable cushion for supporting the back of the head.
  • the present invention relates to an inflatable cushion for supporting the back of the head of a user, the cushion having an U-shape in plane view and the U-shape consisting of a bottom part of the U-shape and two mutually converging leg parts of the U-shape.
  • the life time of a cushion of the mentioned kind may be increased substantially if - according to the present invention - the bottom p ⁇ rt of the U-shape has a double convex surface configuration in the surface part which is intended to support or abut on the nape of the user's neck when the cushion is in its inflated condition.
  • the lifetime for a cushion of the mentioned type at a given material thickness of the bottom part of the U-shape was increased more than 50% measured by the number of uses, i.e. the number of putting on and taking off the cushion from the user's neck before leakage occurred.
  • This increase in lifetime is obtained according to an embodiment of the cushion if only the radius of curvature in the cross section of the bottom part of the U-shape, i.e. the radius of curvature in a plane normal to the surface part which is intended to abut on the user's nape of the neck, is of a value being from 2 to 20% of the radius of curvature of surface part in the bottom part in a plan perpendicularly to said cross sec ⁇ tion and to said surface part in the inflated condition of the cushion. Satisfactory results have been obtained by ratios of 6-10% between the two mentioned radii of cur ⁇ vature.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Pulmonology (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

An inflatable cushion for supporting the back of a user's head is U-shaped seen in plane view and this U-shape consists of a bottom part and two mutually converging leg parts. The bottom part has a surface part which is intended to abut on the nape of the user's neck and this surface part of the cushion is double convex formed when the cushion is in its inflated condition for use.

Description

Inflatable cushion for supporting the back of the head.
The present invention relates to an inflatable cushion for supporting the back of the head of a user, the cushion having an U-shape in plane view and the U-shape consisting of a bottom part of the U-shape and two mutually converging leg parts of the U-shape.
From the prior art is known such a cushion which unfortunately suffers from the disadvantage that it becomes leaky after having been used only a few times. The leakage occurs in the middle zone of the U-shape bottom part.
However, it has unexpectedly become apparent that the life time of a cushion of the mentioned kind may be increased substantially if - according to the present invention - the bottom p^rt of the U-shape has a double convex surface configuration in the surface part which is intended to support or abut on the nape of the user's neck when the cushion is in its inflated condition. The lifetime for a cushion of the mentioned type at a given material thickness of the bottom part of the U-shape was increased more than 50% measured by the number of uses, i.e. the number of putting on and taking off the cushion from the user's neck before leakage occurred.
This increase in lifetime is obtained according to an embodiment of the cushion if only the radius of curvature in the cross section of the bottom part of the U-shape, i.e. the radius of curvature in a plane normal to the surface part which is intended to abut on the user's nape of the neck, is of a value being from 2 to 20% of the radius of curvature of surface part in the bottom part in a plan perpendicularly to said cross sec¬ tion and to said surface part in the inflated condition of the cushion. Satisfactory results have been obtained by ratios of 6-10% between the two mentioned radii of cur¬ vature.

Claims

C l a i s :
1. An inflatable cushion for supporting the back of a user's head, the cushion having an U-shape in plane view and the U-shape consisting of a bottom part of the U-shape and two leg parts, the leg parts extending from " the ends of the bottom part in converging manner, wherein the bottom part of the U-shape has a double con¬ vex surface form in the surface part which is intended to support or abut on the nape of the user's neck when the cushion is in its inflated condition..
2. An inflatable cushion according to claim 1, wherein the cushion in its inflated condition has a radius of curvature in a cross section of said bottom part being from 2.0 to 20%, preferably 8% of the radius of curva¬ ture in a plane section perpendicular to said cross "section and to said surface part, said surface part' of the bottom part being situated in the middle zone of the bottom part at the interior side of the U-shape.
PCT/DK1987/000066 1986-06-02 1987-06-02 Inflatable cushion for supporting the back of the head WO1987007489A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK2578/86 1986-06-02
DK257886A DK257886D0 (en) 1986-06-02 1986-06-02 BUILDING NECK CUSHION

Publications (1)

Publication Number Publication Date
WO1987007489A1 true WO1987007489A1 (en) 1987-12-17

Family

ID=8113322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1987/000066 WO1987007489A1 (en) 1986-06-02 1987-06-02 Inflatable cushion for supporting the back of the head

Country Status (3)

Country Link
AU (1) AU7580487A (en)
DK (1) DK257886D0 (en)
WO (1) WO1987007489A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238716A (en) * 1989-11-30 1991-06-12 Robert John Dudley Welch Cushion for medical use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7506543L (en) * 1975-06-09 1976-12-10 Petersson New Prod Bengt INFLATABLE REST PILLOW
US4236264A (en) * 1977-09-09 1980-12-02 Agnita Britzman Retained compressible pillow support

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7506543L (en) * 1975-06-09 1976-12-10 Petersson New Prod Bengt INFLATABLE REST PILLOW
US4236264A (en) * 1977-09-09 1980-12-02 Agnita Britzman Retained compressible pillow support

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238716A (en) * 1989-11-30 1991-06-12 Robert John Dudley Welch Cushion for medical use
GB2238716B (en) * 1989-11-30 1993-01-27 Robert John Dudley Welch Cushion for medical use

Also Published As

Publication number Publication date
AU7580487A (en) 1988-01-11
DK257886D0 (en) 1986-06-02

Similar Documents

Publication Publication Date Title
MX166547B (en) FOAM FOR SHAPING THE HAIR
ES293845U (en) Belt with flexible weft material.
DK0902710T3 (en) seat belt
IN185354B (en)
ZA9510870B (en) Mounting device for foaming in a foam part
EP0894443A3 (en) Mask
WO1987007489A1 (en) Inflatable cushion for supporting the back of the head
CA2242199A1 (en) Razor blade unit
ATE98101T1 (en) MATTRESS.
USD262590S (en) Seat cushion
US2775014A (en) Cushioning accessory for earrings
GB1428507A (en) Upholstered part of a chair or the like
GB2148111A (en) Pillow
US2522056A (en) Truss
US4818092A (en) Device on a pair of glasses
GB2149646A (en) Earring fastening
US2678042A (en) Adjustable truss
FR2339877A1 (en) Spectacle frame with cushioned pads - has cushion material in depression formed in frame sides and bridge
JPS6343931Y2 (en)
USD228637S (en) Pneumatic tire tread and buttress
ES8607002A1 (en) Intraocular implant
Fila Changes in the Surface Appearance of Nickel During Fatigue
US1397863A (en) Truss
Scarton et al. Temporal dynamics in seagrasses beds of the Venetian lagoon(NE Italy).
FR2381713A1 (en) Strap and button for quilting and upholstery - has length of braiding with plastic bar moulded at one end and disc at other for receiving decorative head

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BR CH DE DK FI GB HU JP KP LU MC MG MW NL NO RO SE SU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BJ CF CG CH CM DE FR GA GB IT LU ML MR NL SE SN TD TG

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642