WO2016001008A1

WO2016001008A1 - Modular seating device

Info

Publication number: WO2016001008A1
Application number: PCT/EP2015/064061
Authority: WO
Inventors: Olaf Schroeder; Thomas Reichel
Original assignee: Farkhondeh, Minou
Priority date: 2014-06-30
Filing date: 2015-06-23
Publication date: 2016-01-07
Also published as: EP3160304B1; EP3160304A1; DE102014109139A1

Abstract

The invention relates to a seating device (40) comprising at least one seating element (10) and at least one leaning element (20) arranged at an angle to the seating element, wherein the leaning element (20) is detachably secured to the seating element (10) by means of at least one joining element (30). According to the invention, the seating element (10) comprises at least one recess provided for receiving a part of the joining element (30), wherein the recess has at least one region that extends, on the vertical plane, through at least one part of the seating element (10). The invention also relates to a joining element (30) comprising at least two arms arranged approximately at a right-angle to one another, wherein one of the arms is provided for being received in a region of the recess of the seating element (10), and for being received in the recess of the leaning element (20).

Description

Modular seat device

background

The invention relates to a seat device which comprises at least one seat element and at least one backrest element arranged at an angle thereto, wherein the backrest element is detachably fastened to the seat element by means of at least one connecting element. The invention further relates to a

Connecting element for releasably securing at least one

Backrest element on at least one seat element of such

Seat device.

State of the art

Seating devices with a seat element and one or more

Backrest element (s) (eg back and / or armrest) are known in a variety of forms and designs. The seat element forms the seat or

Lying surface, while the backrest element is used to lean or support the person sitting or lying on it. Often, these have

Seating devices one, in the area of the seat usually sprung,

Substructure made of wood, plastic and / or metal on, with the

Substructure forms a kind of framework, which gives the seat device stability and shape. The backrest elements are mostly on the

Substructure firmly connected to the seat element. This has the disadvantage that the backrest elements can not be easily removed and replaced in the rule. Such rigid seating devices are therefore not suitable for modular furniture systems in which it would be desirable if seat and back elements could be easily replaced and freely combined with each other.

As "cold foam" is usually referred to a foam, which is compared to conventional foam by a significantly increased elasticity characterized and produced without the application of heat. The two main components of the cold foam are polyol and isocyanate. These two substances are mixed with water and various other additives and auxiliaries and subjected to a foaming process at relatively low temperatures. Cold foam is a Polyetherschaumstoff (polyurethane = PUR), which in contrast to the standard foam as so-called HR foam (HR = High Resilent = highly elastic) is characterized by an irregular, coarse pore structure with changed composition, which is open-celled and therefore high air permeability and a pleasant sitting and sleeping environment and high elasticity. In the production of cold foam is used in the

Basic compound preferably polyether used in place of the usual dialcohols. This creates larger pores that are even better

Ventilation properties and better permeability of moisture. In this process less heat has to be added compared to the production of "hot foam" (hence the term "cold foam")

Unlike traditional hot foam is after

Foaming process no heat application needed in the foam

cures. Cold foam, in contrast to the hot foam, has a relatively closed structure after the foaming process. For this reason, moisture can not penetrate into the cold foam block during curing and affect its properties. The advantage of this initially closed structure is that the cold foam - unlike the

Hot foam - therefore can be produced with much higher compression hardness. To give the cold foam after curing the necessary open porosity, the material is then rolled to open the cells. The resulting open porosity ensures that cold foam is permeable to air and breathable.

Formerly known almost exclusively in connection with the production of mattresses, polyurethane foam has meanwhile become more and more popular in the production of upholstered furniture. The seat cushions of many high-quality upholstered furniture now predominantly consist of cold foam. Polyurethane foam adapts to the human body exactly and is "point elastic", ie the material is in more heavily loaded areas elastic and less loaded areas solid. Therefore, sitting and lying on it is very comfortable and ergonomic. In addition, it is

Polyurethane foam hypoallergenic, as compared to others

Foam stores very little dust.

Summary of the invention

It is an object of the invention to provide a seating device for a modular

To create furniture system in which the seat element and the or

Backrest element (s) can be easily separated and reconnected.

The object is achieved by a seat device of the type mentioned, in which the seat element comprises at least one recess which is provided for receiving a part of the connecting element, wherein the recess comprises at least one region which extends in a vertical plane through at least part of Seat element extends. In this particularly advantageous manner, the connecting element can be held stable and secure in the seat element, so that a displacement of the

Connecting element in the horizontal direction, for example, by leaning a user, is prevented. Thus, the connecting element sits stably and firmly in the seat element, so that a detachable, but stable

Attachment of a backrest element or more backrest elements is easily possible. In addition, can be dispensed with by the inventive design of the recess on additional fastening means for fastening the connecting element, d. H. the connecting element can be anchored without tools in the seat element. As a result, the manufacturing process can be significantly simplified.

In an advantageous embodiment of the invention it is provided that the recess comprises two areas, one of which extends in a vertical plane and the other in the horizontal plane through at least part of the seat member. In this particularly advantageous manner, the connecting element can be held particularly stable and secure in the seat element be so that a displacement of the connecting element in either the horizontal or vertical direction is possible.

The two regions of the recess of the seat element can each be close to the surface in at least one edge region of the seat element

be arranged in order to make optimum use of the seat and the

Backrest element to give maximum stability.

In a further advantageous embodiment of the invention, it is provided that the two regions of the recess of the seat element are arranged at least approximately at right angles to each other. These

Embodiment allows, for example, the inclusion of an approximately L-shaped connecting element, which for certain inventive

Sitting devices may be particularly suitable.

In a further advantageous embodiment of the invention it is provided that the seat element comprises a base body which consists entirely of foam, in particular cold foam. This embodiment can be manufactured as a complete element in a single process step, without having to make and / or attach additional elements or components. When using high-quality foams or high-quality cold foam in addition, a high-quality seat device can be provided, which adapts to the human body exactly and is point elastic. The sitting / lying surface is very comfortable and ergonomic in this embodiment

hypoallergenic.

It can be used according to the invention for example, a PUR foam with a density between RG 30 and RG 80 for the seat element. But it can also be a combination of foams with

different densities are used, for example, a thicker layer RG 40, to which a thinner topcoat RG 50 is applied. For example, cold foams of the type 50/50 and / or 40/50 can be used according to the invention. It can be used according to the invention for the seat element further example, a polyurethane foam with a compression hardness between 2.0 (soft) to 5.0 (hard).

In order to additionally improve the sitting and / or lying comfort, the

Seat element, especially in the area of the seat, also additional

Include spring elements.

In a further advantageous embodiment of the invention

provided that the backrest element comprises at least one recess which is provided for receiving a part of the connecting element.

As a result, the backrest element can simply be plugged onto an outstanding part of the connecting element from the seat element, wherein the connecting element is received in a form-fitting manner in the recess. The inventive connection of the seat element with the backrest element or a plurality of backrest elements makes it possible to provide a modular seating device (or a modular seating furniture system) in which

different seating elements can be freely combined with different backrest elements. The seat device according to the invention can therefore be flexibly adapted to the needs and wishes of the user, wherein the connection of the individual elements without great effort and advantageously without tools is possible.

The recess of the backrest element can be arranged, for example, near the surface in an edge region of the backrest element.

In a further advantageous embodiment of the invention

provided that the backrest element comprises a base body which consists entirely of foam, in particular cold foam. These

Embodiment can be produced in a single process step as a complete element, without additional elements or

Components must be made and / or attached. When using high-quality foams or high-quality cold foam can also provide a high-quality backrest element available which adapts to the human body exactly and is point elastic. The support surface is very comfortable and in this embodiment

ergonomic and hypoallergenic.

It can be used for the backrest element according to the invention, for example, a polyurethane foam with a density between RG 25 and RG 70. But it can also be a combination of foams with

different densities are used, for example, a thicker layer RG 28, to which a thinner top layer RG 40 is applied. For example, according to the invention cold foams of the type 40/30 and / or 28/65 can be used.

It can be used for the back element according to the invention further example, a polyurethane foam with a compression hardness between 2.0 (soft) to 5.0 (hard).

The object is further achieved by a connecting element of the type mentioned above, which comprises at least two legs which are arranged at least approximately at right angles to each other, wherein one of the legs for receiving in a region of the recess of the

Seat element and is provided for receiving in the recess of the backrest element. The connecting element is preferably designed or dimensioned such that it can be easily introduced into the recesses and is held in a form-fitting manner in the recesses. By the connecting element according to the invention, the seat element with the

Backrest element or more backrest elements are stably connected, wherein the connection of the individual elements without great effort and advantageously without tools is possible. This results in a modular seating device (or a modular seating furniture system) in which various seat elements can be freely combined with different backrest elements. The seat device according to the invention can therefore be adapted flexibly to the needs and wishes of the user. In an advantageous embodiment of the invention it is provided that the other leg is provided for receiving in another region of the recess of the seat member, so that a particularly stable connection between the seat element and backrest element (s) can be produced.

In an advantageous embodiment of the invention, it is provided that the two legs are plate-shaped and the

Total connecting element has an approximately L-shaped cross-section.

In a further advantageous embodiment of the invention it is provided that the connecting element consists at least partially of wood and / or plastic.

"Foam" in the sense of the invention is an artificially produced material with a cellular structure and low density, which is produced by foaming a plastic and which can be compressed, that is to say by pressure

Volume can be significantly reduced.

"Cold foam" in the context of the invention is a polyether foam (polyurethane = PUR), in the preparation of which polyether is used in place of dialcohols, so that larger pores are formed in the material, which cause increased permeability of air and moisture and a higher elasticity ,

"Gravity" (= RG) in the context of the invention is the weight of

used material per cubic meter. Unit of the volume weight is

Kilograms per cubic meter (kg / m ³ ).

"Compressive hardness" within the meaning of the invention is the pressure that must act on the foam to increase it by 40% (65%, 25%) of the initial height

compress. Unit of compressive strength is kilopascals (kPa). The higher the compressive strength of the foam, the firmer it is. The lower the compression hardness the lather, the less its ability to regain its original shape after loading.

The invention will be explained in more detail below with reference to the figures.

Brief description of the illustrations

Figure 1 shows a perspective view of an exemplary seat member of the device according to the invention;

A) outside view and

B) Transparent view.

FIG. 2 shows a perspective view of an exemplary backrest element of the device according to the invention;

A) outside view and

B) Transparent view.

FIG. 3 shows a perspective view of an exemplary backrest element and of an exemplary seat element with inserted connecting elements;

A) outside view and

B) Transparent view.

FIG. 4 shows a perspective view of an assembled one

exemplary embodiment of the device according to the invention;

A) outside view and

B) Transparent view.

FIG. 5 shows a perspective view of two exemplary ones

Embodiments of a connecting element according to the invention;

A) embodiment for standard backrest element and

B) embodiment for high backrest element.

Description of preferred and exemplary embodiments of the invention FIG. 1 shows an example of a seat element 10 for a device according to the invention. The seat member 10 includes a cuboid base body 1 1, for example, completely or approximately completely made of foam, for example, cold foam, may exist. The seat element 10 has three recesses 12, 13, 14, each comprising two areas 12.1, 12.2, 13.1, 13.2, 13.1, 13.2. In each case, an area 12.1, 13.1, 14.1 extends in the vertical plane of the base body 1 1, which is aligned as shown, while the respective other area 12.2, 13.2, 14.2 extends in the horizontal plane of the base body 1 1, as shown. The vertical areas 12.1, 13.1, 14.1 and the horizontal areas 12.2, 13.2, 14.2 are each arranged approximately at right angles to each other, so that the recesses 12, 13, 14 are each L-shaped. The

Recesses 12, 13, 14 or their areas 12.1, 12.2, 13.1, 13.2, 13.1, 13.2 are each arranged in the vicinity of the respective surface of the seat element 10 (ie "near the surface") Alternatively, however, the recesses could also be partially or completely be arranged further inside or in the middle in the main body 1 1. The vertical areas 12.1, 13.1, 14.1 of FIG

Recesses 12, 13, 14 are each formed like a bag, d. H. they are open only at the top of the sitting / lying surface 15 and down at the bottom 16 and otherwise completely enclosed by the material of the base 1 1, while the horizontal areas 12.2, 13.2, 14.2 of

Recesses 12, 13, 14 each rather trough-like, d. H. down at the bottom 16 open, are formed. Alternatively, the horizontal areas 12.2, 13.2, 14.2 but also on the bottom 16 could be partially or completely covered by the material of the body 1 1, where they would then be open only at the transition to the respective vertical areas 12.1, 13.1, 14.1. The recesses 12, 13, 14 serve to receive the

connecting elements according to the invention. This is described in detail below in connection with FIGS. 3 and 4.

FIG. 2 shows an exemplary backrest element 20 for a device according to the invention. The backrest element 20 comprises an angled base body 21, which has a long leg 22 and a short leg 23. For example, the main body 21 may be completely or approximated completely Foam, for example cold foam, exist. The backrest element 20 has three recesses 24, 25, 26, which are each formed pocket-like, ie they are open only at the bottom bottom 27 and otherwise completely surrounded by the material of the base body 21. The

Recesses 24, 25, 26 are each arranged in the vicinity of the respective surface of the backrest element 20 (ie "near the surface") Alternatively, however, the recesses could also be arranged partially or completely further inside or in the center of the main body 21. The recesses 24, 25 , 26 serve to receive the connecting elements according to the invention, which is explained in more detail below in connection with FIGS.

FIG. 3 shows the exemplary backrest element 20 according to FIG. 2 and the exemplary seat element 10 according to FIG

Connecting elements 30. The connecting elements 30 are each seated in a form-fitting manner in the recesses 12, 13, 14 of the seat element 10, wherein the respective longer leg 31 of the connecting elements 30 within the vertical portions 12.1, 13.1, 14.1 of the recesses 12, 13, 14 and the respective shorter Leg 32 of the connecting elements 30 within the horizontal areas 12.2, 13.2, 14.2 of the recesses 12, 13, 14th

is arranged. A part 33 of the connecting elements 30 projects in each case upward on the sitting / lying surface 15 out of the seat element 10. On these parts 33, the backrest element 20 is simply attached, wherein the parts 33 of the

Connecting elements 30 are each positively received in the recesses 24, 25, 26 of the backrest element 20. Because the

Connecting elements 30 each with respect to their shape and dimensions or strength of the recesses 12, 13, 14 of the seat member 10 and the

Recesses 24, 25, 26 of the backrest element 20 are adapted and thus held in this form-fitting, the connecting elements 30 sit particularly stable and secure both in the seat element 10 and in the

Backrest element 20, so that a displacement of the connecting element in either horizontal or vertical direction is possible.

FIG. 4 shows an exemplary embodiment of a device 40 according to the invention in an assembled form. The connection of the Backrest element 20 with the seat element 10 has already been described in detail above with reference to FIG. By the invention

Connecting elements 30, the seat member 10 is stably connected to the backrest element 20, wherein the connection of the individual elements without great effort and advantageously without tools is possible. This results in a modular seating device 40, in which various seat elements 10 can be freely combined with different backrest elements 20. The seat device 40 according to the invention can therefore be flexibly connected to the

Needs and wishes of the users to be customized.

FIG. 5 shows a perspective view of two exemplary ones

Embodiments of a connecting element according to the invention, wherein both connecting elements 50, 60 are L-shaped and a longer leg 51, 61 and a shorter leg 52, 62 include. The respective longer leg 51, 61 of the connecting elements 50, 60 is provided for receiving in a region of the recess of a seat member and for receiving in the recess of a backrest element. In this case, the connecting elements 50, 60, as is clear by the different length legs 51 and 61, be adapted to the dimensions of the seat and backrest elements. As an alternative to L-shaped connecting elements, however, these can also have any other form adapted to the respective recesses. For example, sword or plate-shaped connecting elements can be used.

Claims

claims

1 . Seating device (40) which comprises at least one seat element and at least one backrest element arranged at an angle thereto, wherein the backrest element is fastened detachably to the seat element by means of at least one connecting element, characterized in that the seat element (10) has at least one recess (12, 13, 14 ), which is provided for receiving a part of the connecting element (30, 50, 60), wherein the recess (12, 13, 14) at least one region (12.1, 13.1, 14.1), which extends in a vertical plane through at least one Part of the seat member (10) extends.

2. Seat device according to claim 1, characterized in that the

Recess (12, 13, 14) comprises two areas (12.1, 12.2, 13.1, 13.2, 14.1, 14.2), one of which extends in a vertical plane and the other in the horizontal plane through at least part of the seat member (10).

3. Seat device according to claim 1 or 2, characterized in that the two regions (12.1, 12.2, 13.1, 13.2, 14.1, 14.2) of the recess (12, 13, 14) of the seat element (10) are arranged at least approximately at right angles to each other.

4. Seat device according to one of claims 1 to 3, characterized

characterized in that the seat element (10) comprises a base body (1 1), which consists entirely of foam, in particular cold foam.

5. Seat device according to one of claims 1 to 4, characterized

characterized in that the backrest element (20) at least one

Recess (24, 25, 26) which is provided for receiving a part of the connecting element (30, 50, 60).

6. Seat device according to claim 5, characterized in that the recess (24, 25, 26) of the backrest element (20) is arranged near the surface in an edge region of the backrest element (20).

7. Seat device according to claim 5 or 6, characterized in that the backrest element (20) comprises a base body (21) which consists entirely of foam, in particular cold foam.

8. connecting element (30, 50, 60) for releasably securing at least one backrest element (20) on at least one seat element (10) of the seat device (40) according to one of claims 1 to 7, characterized in that the connecting element (30, 50, 60) comprises at least two legs (31, 32, 51, 52, 61, 62), which are arranged at least approximately at right angles to each other, wherein one of the legs (31, 51, 61) for receiving in a region (12.1, 13.1, 14.1 ) of the recess (12, 13, 14) of the seat element (10) and for receiving in the recess (24, 25, 26) of the backrest element (20) is provided.

9. Connecting element according to claim 8, characterized in that the other leg (32, 52, 62) for receiving in another region (12.2, 13.2, 14.2) of the recess (12, 13, 14) of the seat element (10) is provided ,

10. Connecting element according to claim 8 or 9, characterized in that the two legs (31, 32, 51, 52, 61, 62) plate-shaped

are formed and the connecting element (30, 50, 60) has an overall approximately L-shaped cross-section.