DE212021000481U1 - Multi-layer adjustable pillow - Google Patents

Abstract

A conformable multi-layer cushion comprising at least two split outer layers of differing stiffness, at least one surface of each layer having raised portions and valleys coinciding with corresponding valleys and raised portions of the other layer.

Description

The present invention relates to an adjustable multi-layer pillow that allows adjustment of the thickness and stiffness of the pillow depending on the number of layers, their quality and combination.

A previously proposed adjustable pillow is in USA-5953777 (published 09/21/1999). This includes a main top layer and additional layers that can be combined depending on thickness and stiffness, allowing for customization of the thickness and stiffness of the pillow. The disadvantage of this pillow is the lack of fasteners. The layers are fixed with a stretchable cover, without which the pillow cannot be used.

A previously proposed multi-layer composite cushion is in CN210144372U (published 03/17/2020) which includes a top layer with dimples, at least one composite intermediate layer with bumps on its top surface and on its bottom surface with dimples. The top surface of the bottom layer has bumps that fit into the indentations in the intermediate layer. The downside to this pillow is the inability to set levels of stiffness.

Another previously proposed pillow with adjustable stiffness and thickness is in EP2130461 (published on 12/09/2009). This is characterized by three detachable layers of different stiffness (A, B and C), which are connected with the help of nubs and indentations. The downside is the lack of stiffness distribution between outer and inner layers, which limits the stiffness adaptability of the entire cushion.

The present invention aims to provide a simple, comfortable and user-friendly multi-layer adjustable pillow that allows adjustment of thickness and rigidity according to the user's personal preference while maintaining a stable position when the user sleeps.

The present invention aims to expand the current range of adjustable pillows and allow the user to adjust the rigidity of the pillow, avoiding the high rigidity in the top layer coming into contact with the head and neck. This allows for a comfortable anatomical and physiological position for the user's neck and head.

Accordingly, the present invention is directed to an adjustable multi-layer cushion comprising at least two split outer layers of differing stiffness, with at least one surface of each layer having raised portions and valleys that correspond to corresponding valleys and raised portions of the other layer. Preferably, the cushion has at least one detachable inner layer, the rigidity of which is different from, preferably higher than, any outer layer, and which is intended to be reliably fixed between the outer layers. The cushion is preferably made of polyurethane foam.

Preferably, the additional inner layer or layers can be added or removed by the user to adjust the thickness and stiffness of the pad.

Advantageously, the pad may comprise two outer split layers and two additional detachable layers tightly bonded together. In this case, each layer can have its own stiffness, which differs from the stiffness of other layers.

In a preferred embodiment, the stiffness of an additional releasable inner layer may be less than that of any outer layer.

In order to easily identify and combine the layers, each layer preferably has a different color that indicates the stiffness and/or location of the layer in the construction of the pad.

Advantageously, at least one additional releasable layer may differ in thickness from other layers, including skin layers.

Advantageously, a level of rigidity can be achieved either through the use of an appropriate material or through the thickness of the layer. Preferably, the rigidity of each Layer can be adjusted by increasing or decreasing the density of the foam. In a preferred embodiment, the level of stiffness can be further adjusted by either adding or removing a layer, or in some cases rearranging the layers, or by selecting the upper level by rotating the pad.

Advantageously, the raised portions and depressions of each layer form an undulating or crenellated surface for bonding. Preferably, the connectable surface has at least a raised portion and a lowered portion. In a preferred embodiment, the raised and lowered parts are connected to the other parts of the surface by inclined parts. Advantageously, the various layers of the pillow may be held together by a pillow case or cover.

Advantageously, the intended upper outer layer may be shaped for additional head or lumbar support.

• 1 - eine perspektivische Ansicht eines dreischichtigen Kissens gemäß der vorliegenden Erfindung zeigt;
• 2 - eine perspektivische Ansicht eines zweischichtige n Kissens gemäß der vorliegenden Erfindung zeigt
• 3 - eine perspektivische Ansicht eines vierschichtigen Kissens gemäß der vorliegenden Erfindung zeigt; und
• 4 - eine perspektivische Ansicht eines dreischichtigen Kissens gemäß der vorliegenden Erfindung zeigt.

An example of a pillow made in accordance with the present invention will now be described below with reference to the accompanying drawings, in which:

• 1 - shows a perspective view of a three-layer cushion according to the present invention;
• 2 - shows a perspective view of a two-layer cushion according to the present invention
• 3 - shows a perspective view of a four-layer cushion according to the present invention; and
• 4 - shows a perspective view of a three-layer cushion according to the present invention.

1. a eine dünne innere Schicht, gelb, die weichste;
2. b eine dicke äußere Schicht, weiß, weich;
3. c eine dicke äußere Schicht, schwarz, starr; und
4. d eine dünne innere Schicht, rosa, die steifste.

The figures illustrate how a pad according to the present invention can be assembled from four layers of different thicknesses and stiffnesses. The following identifier is used throughout:

1. a a thin inner layer, yellow, the softest;
2. b a thick outer layer, white, soft;
3. c a thick outer layer, black, rigid; and
4. d a thin inner layer, pink, the stiffest.

The stiffness of a layer can be achieved in any known way - selection of a relevant material, thickness (height) of the layer, etc., colors, the degree of stiffness and their combination, described above in the separate case, are variable within the scope of the present invention.

Suitable polyurethane foams for making the layers are manufactured by Vita Baltic International, UAB, under their VITAO range.

Suitable foams are listed in Table 1 as follows. Table 1 Foam layer hardness layers softness Vita Baltic brand name Hardness N (ILD 40%) Density kg/ ^m3 Top center softness VE 5010 35-55 47-55 center hardest VE 6024 68-98 57-65 Floor Middle PV5010 59-83 47.5-55

1 shows a combination of two outer layers - the soft b and the stiff c, and an inner layer d, the stiffest. Placing the stiffest layer between two outer layers ensures the physiologically optimal stiffness and thickness as well as the comfortable position of the head and chest neck on the pillow by reducing the rigidity of the outer layers. If the inner layer is detachable, it is possible to vary the stiffness and temporarily decrease it by only joining the outer layers.

2 shows a combination of two outer layers b, the soft, and c, the rigid, with the inner layer removed. The thickness will be minimal, while the rigidity of the pillow will be optimally combined. The pillow in this configuration can be rotated according to the user's preferences.

3 shows a combination of four layers - b, the softest, c, the stiffest, a, the softest inner layer, and d - the stiffest inner layer. This combination is the thickest and has a balanced stiffness. The inner and outer layers can be rearranged according to the user's preferences.

4 shows a combination of two outer layers - b, the soft, and c - the stiff, plus the softest intermediate layer, ie the option where the stiffest layer is removed. This will make the pillow thicker but softer. The pillow can be rotated according to the user's preferences.

Each layer has the same relief, a wavy surface to match the wavy relief of another layer. These surfaces each comprise ground parallel surface end portions 10 with raised and lowered parallel surface portions 12, 14 at the center. The crenellated surfaces 12, 14 are connected to the outer parts 10 and to each other by inclined surfaces 16. This construction requires no additional attachment devices and the cushion will not fall apart during use.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• US5953777 [0002]
• CN 210144372 U [0003]
• EP 2130461 [0004]

Claims (13)

A conformable multi-layer cushion comprising at least two split outer layers of differing stiffness, at least one surface of each layer having raised portions and valleys coinciding with corresponding valleys and raised portions of the other layer. pillow after claim 1 characterized by at least one removable inner layer, the rigidity of which is different, preferably higher, than that of each outer layer and which is intended to be reliably fixed between the outer layers. pillow after claim 1 or 2 characterized in that it has four layers including two outer split layers and two additional detachable inner layers. Cushion according to one of the preceding claims, characterized in that the individual layers each have different levels of rigidity. Pillow after one of claims 2 or 3 or 4 , characterized by a lower stiffness of each detachable inner layer compared to the outer layers. A cushion according to any one of the preceding claims, characterized in that each layer has different colours, each color indicating a level of stiffness and/or the location of the layer in the cushion. Cushion according to any one of the preceding claims, characterized by a different thickness of at least one of the additional detachable layers. Cushion according to any one of the preceding claims, characterized in that the cushion is made of polyurethane foam. Cushion according to any one of the preceding claims, characterized in that the rigidity of each layer is adjusted by varying the density of the polyurethane foam. A cushion as claimed in any one of the preceding claims characterized in that the raised portions and indentations of each layer form a wavy or crenelated surface for bonding. A cushion as claimed in any one of the preceding claims, characterized in that the connectable surface has at least one raised portion and one lowered portion. pillow after claim 11 , characterized in that the raised and lowered parts are connected to the other parts of the surface by inclined parts. A pillow according to any one of the preceding claims, characterized in that the different layers of the pillow are held together by a pillow case or cover.