Modular sofa

Abstract

The invention relates to a sofa (1) composed of a modular structure comprising one or more seat parts (2), one or more back parts (3), and normally two or more side parts (4), the seat parts (2), back parts (3), and side parts (4) being detachably screwed to their feet (12). A slipcover has loops on the lower edges which are folded inwards and upwards again at the bottom of box-shaped base parts (5, 16) of the seat parts (2), back parts (3), and side parts (4), and are secured by threaded rods (25) which are inserted through and suspended from hooks or pins (26).

Description

[0001] The invention relates to a modular sofa having the features of the preamble of claim 1.

[0002] Patent EP 1 893 053 B1 discloses a modular sofa with detachably connected seat parts and back and side parts detachably connected to the seat parts. The seat parts, back parts, and side parts have box-shaped base parts with cushions over which slip covers are pulled. The box-shaped base parts of the seat parts have intermediate shelves at a mid-height of the base parts, which are framed on all sides by upright walls such that the base parts have open cavities at the top and bottom. Cushions are placed in the open cavities of the base parts of the seat parts of the known modular sofa, onto which another cushion is placed, over which the slip covers are pulled up to a lower edge of the box-shaped base parts, which hold the upper cushions on the base parts.

[0003] The object of the invention is to propose a simple method for attaching a cover to a seat, back, and / or side panel of a modular sofa of the aforementioned type. Preferably, the cover should be able to be attached and removed from the seat, back, and / or side panel by hand without the need for tools.

[0004] This object is achieved according to the invention by the features of claim 1.

[0005] The sofa according to the invention has a modular design, comprising a seat and a backrest, and in some embodiments of the invention, an additional side section. Multiple seat sections, backrests, and / or side sections can also be combined and connected to form a sofa.

[0006] According to the invention, the seat part and / or the back part and / or the side part has a hollow space open at the bottom, and the modular sofa has a cover for the seat part, the back part and / or the side part. The cover is a covering made, for example, of textile, leather, or a plastic, such as a nonwoven fabric containing microfibers, which is or will be pulled from the top over the seat part, the back part and / or the side part to an underside. The cover preferably lies completely, largely, or largely against surfaces of the seat part, back part and / or side part that it covers, in particular the side surfaces, backrests, top sides and / or seat surfaces of the seat part, back part and / or side part. For detachable fastening, the cover is or will be folded over at the bottom into the hollow space open at the bottom of the seat part, back part and / or side part and releasably secured in the hollow space.

[0007] Underneath the slipcover, a slipcover-like, for example padded, cover can be pulled over the seat part, the back part and / or the side part.

[0008] Spatial directions such as "down" and "up" refer to the intended placement of the seating section or sofa with its feet resting on the floor or another, particularly horizontal, surface. The floor, or the surface in general, is located at the bottom of the sofa.

[0009] For example, for washing or replacement, the cover can be removed from the seat, back and / or side parts and pulled upwards.

[0010] The cover does not have to extend all the way down on all sides; it is sufficient if the cover extends down on, for example, only three sides or two opposite sides of the seat part, back part and / or side part. For example, the cover does not have to extend all the way down on the back of the back part or on sides of the seat part, back part and / or side part facing another seat part, back part or side part. However, the cover preferably extends down on all sides of the seat part, back part and / or side part, is preferably folded over on all sides into the hollow space in the seat part, back part and / or side part that is open at the bottom, and is preferably removably secured in the hollow space on all sides - preferably by hand without tools.

[0011] Preferably, the cover can be manually attached and removed without tools in the open-bottomed cavity on the underside of the seat, back, and / or side panels. For example, the cover is releasably attached to an inner side of a border of the open-bottomed cavity on the underside of the seat, back, and / or side panels using hook-and-loop fasteners, or is hung on hooks or the like.

[0012] One advantage of the invention is the possibility of producing its individual components, such as covers, upholstery, bases, etc., in a single, single-material manner. After disassembling the sofa, the individual parts can be easily recycled or disposed of.

[0013] The back and side panels can be identical in embodiments of the invention, resulting in a modular sofa according to the invention with fewer different components. In this case, the back panel can also be used as a side panel. However, different back and side panels are also possible. For example, in this embodiment of the invention, the side panels are lower than the back panels.

[0014] The dependent claims relate to advantageous embodiments and further developments of the invention.

[0015] In a preferred embodiment of the invention, the cover has a loop on a lower edge, which is folded over at the bottom of the seat part, back part and / or side part of the modular sofa from the outside inwards into the hollow space of the seat part, back part and / or side part, which is open at the bottom, and then upwards into the hollow space. In particular, a threading rod is or is pulled through the loop on the folded-over lower edge of the cover and is secured to an inner side of a border of the hollow space open at the bottom on the underside of the seat part, back part and / or side part, for example, hooked onto pins or hooks. The threading rod can be a metal rod, a plastic rod, also made of fiber-reinforced plastic, a wooden rod, or a rod made of another material.

[0016] The loop consists in particular of a flexible, two-dimensional sheet material and preferably extends along the lower edge of the cover and is only interrupted at the pins or hooks into which the threading rod is or will be hooked. For example, the cover has a loop or loops between the pins or hooks interrupted at the pins or hooks on opposite sides or on all sides of the seat part and on opposite sides of the back part and / or the side part. In particular, on each side of the seat part and on opposite sides of the back part and / or the side part, a threading rod is inserted through the loop(s) of the cover and hooked onto the pins, hooks or the like on the inside of the enclosure of the hollow space.Especially in the case of wide sofas or generally long sides of the seat, back or side parts, several thread rods can be arranged one behind the other in the loops of the cover, whereby the ends of the thread rods can overlap, butt against each other or be spaced apart from each other.

[0017] A preferred embodiment of the invention provides that the seat part, the back part, and / or the side part have a box-shaped base part, which provides stability to the seat part, back part, and / or side part. The base part has an intermediate floor and upright walls that enclose the intermediate floor in the manner of a frame or socket. By "upright" is meant that the walls of the base part are vertical or approximately vertical when the sofa is placed on the floor or the base as intended, with its underside touching the floor or, in general, the support surface, or that the walls are perpendicular or approximately perpendicular to the intermediate floor of the base part. The walls of the base part project upwards and / or downwards over the intermediate floor in such a way that a hollow space open at the top and bottom is formed on and below the intermediate floor.The hollow space below the intermediate floor of the base part, which is open at the bottom, forms the hollow space of the seat part of the modular sofa according to the invention. The box-shaped base part of the back part and / or the side part of the modular sofa according to the invention, in embodiments of the invention, have similarly open hollow spaces on their undersides. The walls of the base part that project downwards beyond the intermediate floor form the enclosure of the hollow space that is open at the bottom, on the inside of which the covers are releasably secured, for example, the thread rods inserted through the loops at the lower edge of the cover are hooked. In particular, the base part is not painted to ensure separate disposal, no staples, screws, or nails are used, and the cover-like upholstery covers and the covers do not have zippers, snap fasteners, eyelets, or the like that would have to be removed before separate disposal or recycling.

[0018] Although the box-shaped base part is in particular cuboid-shaped, other shapes, such as round, are also possible. The walls of the box-shaped base part protrude in particular at right angles upwards and / or downwards from the intermediate floor. However, other angles are also possible. Angular, polygonal walls are not essential for the invention; the base part can, for example, also have a circumferential, cylindrical or otherwise round wall that protrudes at a right angle or another angle downwards and / or upwards from the intermediate floor. The wall can, for example, also be in the shape of a single-shell hyperboloid, and in principle the wall or the box-shaped base part can have any desired shape, provided that the downwardly open cavity for folding the cover from the outside into the cavity in which the cover is fixed exists on the underside.Preferably, however, the box-shaped base part has a cuboid shape as described above.

[0019] The seat part has a seat at the top and feet on the underside, with which the seat part can be placed on a surface such as a floor. The "underside" faces the floor or other surface, and a "top side" faces away from the floor or other surface when the seat part or sofa is positioned as intended with its feet on the floor or other surface. A "seat" here refers to an element or upper surface of the seat part that is designed and intended for a person to sit on. The top side of the seat part has a seating surface for the person to sit on. If the seat part has the box-shaped base part, the feet of the seat part are arranged, particularly on the underside of the intermediate floor, projecting downwards from the intermediate floor.The underside of the intermediate floor faces the floor or generally the support surface and the top side of the intermediate floor faces away from the floor or generally the support surface when the sofa or the seat part is positioned as intended with its feet on the floor or generally the support surface.

[0020] The back part of the modular sofa according to the invention is or is arranged on a rear side of the seat part, whereby the "rear side" here refers to the side of the seat part on which the back part is or is arranged. The back part has a backrest on a front side, whereby the "front side" here refers to the side of the back part facing the seat part. The backrest is a surface intended for leaning the back of the person sitting on the sofa or on the seat part of the sofa, which surface is usually vertical or at an acute angle to a vertical on the rear of the seat part upwards from the top of the seat part.

[0021] The backrest also has feet on an underside with which it rests on the floor or generally on the support surface when the sofa according to the invention is placed as intended with its feet on the floor or generally on the support surface.

[0022] In a preferred embodiment of the invention, the feet of the seat part and the back part are rigidly and detachably connected to one another such that the back part is connected to the seat part via the rigid connection of the feet. The seat part holds the back part upright. The feet of the back part can be arranged in an imaginary, for example, vertical plane such that the back part alone, without the seat part, cannot stand stably on the floor or the surface in general.

[0023] "Detachable" means that the feet can be detached from each other without damage or destruction and can be reconnected in the original manner or with the original components without replacing any components. In particular, the feet of the seat section, the back section, and—if present—the side section can be detached from each other and reconnected rigidly without tools, either by hand or with a simple hand tool such as a wrench, for example, an open-end wrench, ring wrench, or Allen key.

[0024] As mentioned, several seat sections and back sections can also be connected to form the modular sofa according to the invention by means of a detachable and rigid connection of their feet, thus enabling, for example, a wider sofa and / or a corner sofa or a U-shaped sofa. The seat surface can also be extended by arranging an additional seat section at a front side opposite the back of one seat section and away from the back section.

[0025] One embodiment of the invention provides a detachable and rigid connection of the feet of the seat part, the back part and - if present - the side part with a strut or stiffener that rigidly connects a foot of the seat part to a foot of another seat part, back part and / or side part or a foot of a back part to a foot of a side part, wherein the strut or stiffener is detachable from the feet. A strut has, for example, two or more struts that connect the two feet, for example in the manner of a flat ladder frame. The struts can be screwed to the feet, for example. A stiffener has, for example, a flat plate whose distal edges are rigidly and detachably connected to the feet, for example screwed.

[0026] One embodiment of the invention has a side part that is or will be arranged on a side of the seat part that is adjacent to the back of the seat part, which is referred to here as the side edge. Like the back part, the side part projects upwards beyond the top of the seat part that forms the seat surface, and the side part has feet on its underside that are or will be rigidly and detachably connected to feet of the seat part and / or the back part such that the side part is connected to the seat part and / or the back part via the interconnected feet. The side part - like the back part - does not have to stand stably on its own without the seat part or the back part on the floor or the surface in general, but the side part is held in place by the seat part and / or the back part, for example, on the floor or the surface in general, by the connection of its feet to feet of the seat part and / or the back part.

[0027] In embodiments of the invention, the seat parts are not rigidly connected to one another at their feet, but rather the seat parts are connected with connectors that are only attached or connected to a seat part after the seat parts have been set up. In this way, the back parts and side parts can be attached to the seat parts and individual seat parts can be set up with the back parts and side parts attached to them, i.e. placed with their feet on the floor or the surface in general. It is therefore not necessary to set up the sofa as a whole. The set-up seat parts are pushed together on the floor or the surface in general as they are intended to be a sofa and connected with the connectors. A tensile-resistant connection of the seat parts is sufficient to prevent the seat parts from shifting against one another.

[0028] Preferably, the seat part(s) is / are designed to be self-supporting, whereas the back part(s) and side parts are / are not self-supporting in embodiments of the invention. "Self-supporting" means that the seat part stands securely on, for example, the floor or the support surface in general. To this end, the feet are arranged on the underside of the seat part in such a way that they stand, for example, at the corners of an imaginary triangle and preferably an imaginary rectangle or square on the floor or the support surface in general. Viewed vertically from above, the feet should not be offset too far inward from the sides of the seat part on the floor or the support surface in general, so that the seat part does not tip over when loaded on one edge. The invention does not preclude a different arrangement of the feet.

[0029] In embodiments of the invention, the feet of the back part and / or the side part stand on an imaginary straight line on the floor or generally on the support surface, as a result of which the back part or the side part does not stand stably on the floor or generally on the support surface if it stands alone and its feet are not connected to the feet of the seat part, side part or back part.

[0030] The feet of the back part or side part are preferably not connected to all the feet of the seat part, but to feet arranged on the underside of the seat part, close to the side of the seat part on which the back part or side part is or will be arranged. Preferably, at least two feet of the back part or side part are or will be rigidly and detachably connected to two feet of the seat part or to at least one foot of the seat part and one foot of a side part or back part.

[0031] A further development of the invention provides that the walls of the box-shaped base part of the seat part of the sofa according to the invention protrude upwards from the intermediate floor such that the box-shaped base part has a hollow space on the intermediate floor that is open at the top and laterally enclosed by the walls. A cushion for the seat of the sofa or as seat upholstery for a person sitting on the sofa is arranged in this hollow space, wherein the cushion preferably protrudes upwards beyond the walls of the box-shaped base part of the seat part. The walls of the box-shaped base part protruding upwards from the intermediate floor hold the cushion laterally in all directions to prevent it from slipping.

[0032] Preferably, the seat part has a cushion made of an elastic foam with an open cavity on its underside, in which a spring base is or will be arranged, for example, comprising spring cores. The spring base can also be made of an elastic foam like the cushion, whereby separate production of the cushion and the spring base allows for different spring or cushion hardnesses of the cushion and the spring base.

[0033] The slipcover covers or spans and secures the upholstery to the seat, back, and / or side panels. The slipcover allows for easy attachment of the upholstery to the seat, back, and / or side panels. Furthermore, the slipcover determines the look and color of the sofa.

[0034] In likewise preferred embodiments of the invention, the back part and / or the side part of the modular sofa according to the invention have a box-shaped base part that projects upwards above the top of the seat of the seat part. This embodiment of the invention enables a sofa with a stable backrest, armrest, or side rest for leaning or supporting a person sitting on the sofa. On a side facing the seat part, the box-shaped base part of the back part or side part has a hollow space that is open on a side facing the seat part. The side of the base part of the back part facing the seat part is referred to as the front side of the back part, and the side of the base part of the side part facing the seat part is referred to as the inside of the side part. A back cushion or a side cushion can be arranged in the hollow space, with the cushion preferably protruding from the hollow space.

[0035] All features mentioned in the description and / or illustrated in the drawings may be implemented individually or in any combination in embodiments of the invention. Embodiments of the invention that include only a portion of the features of a claim, including the independent claim, are possible.

[0036] The invention is explained in more detail below with reference to an embodiment illustrated in the drawing. In the drawings: Figure 1 a perspective view of a modular sofa according to the invention obliquely from above; Figure 2 the sofa from Figure 1 diagonally from below; Figure 3 a perspective view of basic parts of a seat part with a back part and a side part of the modular sofa made of Figures 1 and 2 obliquely from below; Figure 4 a perspective exploded view of a seat part of the sofa from Figures 1 and 2diagonally from below; Figure 5 a sectional view of a detail of the seat part from Figure 4 ; Figure 6 an exploded perspective view of a back or side part of the sofa from Figures 1 and 2 diagonally from below; Figure 7 two feet of the sofa connected by means of a strut according to the invention Figure 1 or 2 in a perspective view; and Figure 8 a connection of three seat parts of the sofa from Figures 1 and 2 .

[0037] The Figures 1 and 2The sofa 1 according to the invention shown is modular in design and has at least one seat part 2 and one back part 3. In the exemplary embodiment, the sofa 1 has three seat parts 2, two back parts 3, and one side part 4. The seat parts 2 are cuboid-shaped and, when viewed from above, square or rectangular. The seat parts 2 can be of different sizes. In the exemplary embodiment, the seat parts 2 are arranged in an L-shape when viewed from above, such that the sofa 1 forms a corner sofa. In principle, any number of seat parts 2 can be arranged in a square or rectangular grid.

[0038] Figure 3 shows box-shaped base parts 5, 16 with feet 12 of a seat part 1, a back part 3 and a side part 4 of the modular sofa 1 diagonally from below.

[0039] The box-shaped base part 5 of the seat parts 2 is in Figure 4Shown in an exploded view: it has a square or rectangular plate as an intermediate floor 6, which has walls 7 on all four sides that enclose the intermediate floor 6 in the manner of a square or rectangular frame. The walls 7 are arranged perpendicular to one another and perpendicular to the intermediate floor 6 and protrude from the intermediate floor 6 on both sides, i.e., upwards and downwards. As a result, the box-shaped base part 5 of the seat parts 2 of the sofa 1 according to the invention has an upper cavity within the walls 7 on an upper side of the intermediate floor 6 and a lower cavity 10 within the walls 7 on a lower side 11 of the intermediate floor 6. The upper cavity is open upwards and the lower cavity 10 is open downwards. The walls 7 form an enclosure 28 of the cavities 10 above and below the intermediate floor 6 of the box-shaped base part 5.

[0040] On the underside 11 of the intermediate floor 6 of the base part 5, feet 12 are arranged, which project downwards beyond the frame-like walls 7 of the box-shaped base part 5 (compare also Figures 2 and 3 ). The seat part 2 or the sofa 1 is placed on a floor (not shown) or generally on a surface such that its feet 12 rest on the floor or generally on the surface. The feet 12 are arranged close to the sides of the seat part 2, i.e., close to the walls 7 of the box-shaped base part 5, such that the seat part 2 stands stably and securely with its feet 12 on the floor or generally on the surface. The seat part 2 can therefore also be considered freestanding.

[0041] In the exemplary embodiment, the seat part 2 has four feet 12 arranged at the corners of an imaginary square or rectangle, the sides of which are arranged parallel to the walls 7 of the box-shaped base part 5 of the seat part 2 and slightly offset inward from the walls 7 on the underside 11 of the intermediate floor 6. The arrangement of the feet 12 is not mandatory; it is important or at least advantageous to arrange the feet 12 close to the edge so that the seat part 2 stands securely on the feet 12.

[0042] The underside 11 of the intermediate floor 6 and the seat part 2 refers here to the side on which the feet 12 are arranged and which face the floor or generally the support surface when the seat part 2 or the sofa 1 is placed on the floor or generally the support surface, as intended, with its feet 12 resting on the floor or generally on the support surface. The top side 8 is accordingly the opposite side, facing away from the floor or generally the support surface. The "bottom" refers to the side facing the floor or generally the support surface, and the "top" refers to the side facing away from the floor or generally the support surface when the seat part 2 or the sofa 1 is placed on the floor or generally the support surface, as intended, with its feet 12 resting on the floor or generally on the support surface.

[0043] On the upper side 8 of the box-shaped base part 5 of the seat part 2 of the modular sofa 1 according to the invention, a cuboid-shaped cushion 13 is arranged, the outer sides of which are flush with the outer sides of the walls 7 of the box-shaped base part 5. The outer sides of the cushion 13 have recesses which are as wide as the walls 7 of the box-shaped base part 5 are thick, such that the cushion 13 engages in the upper cavity of the box-shaped base part 5 between the four walls 7 and is thereby held against lateral displacement, i.e. against displacement parallel to the intermediate floor 6 in all directions (see also Figure 5 ).

[0044] The cushion 13 is higher than the upper cavity of the box-shaped base part 5 of the seat part 2 from the upper edges of the walls 7 to the intermediate floor 6 is deep such that the cushion 13 projects upwards over the walls 7 of the box-shaped base part 5 when the cushion 13 lies between the walls 7 on the intermediate floor 6 of the box-shaped base part 5.

[0045] The cushion 13, which in the exemplary embodiment consists of an elastic foam, has a cuboid-shaped cavity 14 with a square or rectangular base on its underside facing the intermediate floor 6 of the box-shaped base part 5 of the seat part 2 of the sofa 1, in which a spring base 15 is arranged, which in the exemplary embodiment has spring cores 9. The spring base can, for example, also be a cushion such as the cushion 13, in whose cavity 14 on the underside the spring base 15 is arranged. In this case, the spring base 15 preferably has a different spring or cushion hardness than the cushion 13. The spring base 15 rests on the intermediate floor 6 of the box-shaped base part 5 of the seat part 2 and is as high as the cavity 14 in the underside of the cushion 13 made of foam such that the cushion 13 made of foam rests on the spring base 15.

[0046] The back part 3 and the basically identical side part 4 - which in Figure 6 shown - each also has a box-shaped base part 16, which is or will be arranged in a standing position on the sofa 1. By "standing" is meant that the base part 16 of the back part 3 and the side part 4 is higher than it is deep. By "deep" is meant a dimension of the back part 3 and the side part 4 perpendicular to a side of the seat part 2 on which the back part 3 or the side part 4 is arranged. The base parts 16 of the back part 3 and the side part 4, and thus also the back part 3 and the side part 5 themselves, protrude upwards above the upper side 8 of the seat part 2 or above an upper side 8 of the cushion 13 of the seat part 2, such that a person sitting on the seat part 2 can lean against the back part 3 and the side part 4.

[0047] Figure 6shows individual parts of the back part 3, with the side part 4 being constructed identically. The base part 16 of the back part 3 has a cavity 17 above the upper side 8 of the cushion 13 of the seat part 2, which is open on a front side of the back part 3 facing the seat part 2. A back cushion 18 is arranged in the cavity 17 of the back part 3 and protrudes from the back part 3. A front side of the back cushion 18 facing the seat part 2 forms a backrest 19 against which a person sitting on the cushion 13 of the seat part 2 can lean.

[0048] The base part 16 of the side part 4, like the base part 16 of the back part 3, has a hollow space 17 above the upper side 8 of the cushion 13 of the seat part 2, which is open on an inner side of the side part 3 facing the seat part 2. A cushion of the side part 4 has the same structure as the back part 3, can be considered a side cushion, and is located on the side of the side part 4 facing the seat part 2, which is referred to here as the inner side.

[0049] On the underside, the base part 16 of the back part 3 and the side part 4 has feet 12, which in the exemplary embodiment are arranged in an imaginary vertical center plane or a plane parallel to the center plane of the base part 16 of the back part 3 and the side part 4. Due to the arrangement of the feet 12 in one plane, the back part 3 and the side part 4 do not stand stably with their feet 12 on the floor or the support surface in general, but are very likely to fall over, i.e. the back part 3 and the side part 4 are not self-supporting on their own.

[0050] In the illustrated and described embodiment of the modular sofa 1 according to the invention, the back parts 3 and the side part 4 are identical in construction, i.e. there is no difference between the back part 3 and the side part 4, but a back part 3 is arranged as a side part 4 on the side of a seat part 2 and is connected to this and preferably, as described, also to the back part 3 on the back of the seat part 2.

[0051] However, versions of the sofa 1 according to the invention with different back parts 3 and side parts 4 are also possible. For example, the side parts 4 are lower than the back parts 3 (not shown).

[0052] One - or if the seat part 2 is used as a corner element of a corner sofa - two back parts 3 and - if present - a side part 4 are or are connected to a seat part 2 via the feet 12 on their undersides 11. Figure 3shows the connections of a seat part 2, a back part 3 and a side part 4. For connection - as in Figures 3 and 7 to see - two feet 12 each or for connecting a seat part 2 with a back part 3 and a side part 4 as in Figure 3At the bottom left, three feet 12 are connected to each other "at an angle" by a strut 20. In this exemplary embodiment, the strut 20 has two rods 21 that are arranged parallel to each other and horizontally, i.e., parallel to the intermediate floor of the seat part between the two feet 12, and are screwed to the feet 12. The strut 20 connects the feet 12 rigidly and detachably to each other. With the strut 20, two feet 12 form a type of flat ladder frame. Other connections, for example, with a different strut or, for example, a plate-shaped stiffener between the feet 12, are possible (not shown). The feet 12 are detachably connected to each other so that the seat part(s) 2, back part(s) 3, and side part(s) 4 of the modular sofa 1 according to the invention can be detached from each other and connected to each other in basically any desired combination.

[0053] To connect and detach the seat parts 2, back parts 3, and side parts 4, only a wrench such as an open-end wrench, ring wrench, or Allen key is required. It is also possible to connect and detach the two feet 12 to the strut 20 or extension without tools, for example, using bayonet locks, hand levers, wing-head nuts, wing-head screws, or star-grip screws.

[0054] Two feet 12 on each side of a seat part 2 are connected to the two feet 12 of a back part 3 or a side part 4, or one foot 12 of a seat part 2 is connected to one foot 12 of a back part 3 or a side part 4, the other foot 12 of which is connected to one foot 12 of another back part 3 or side part 4 or seat part 2.

[0055] After connecting the back parts 3 and the side parts 4, the seat parts 2 are set up, i.e. placed on the floor or other surface with the feet 12. The seat parts 2 are then pushed together as they are to form the sofa 1 and connected with clamp-like connectors 29, as shown in the detailed illustration in Figure 8 shows. Figure 8 shows an inside corner between three seat sections 2 of a corner sofa, viewed diagonally from below. In the exemplary embodiment, the connectors 19 are Z-shaped. One leg of the connector 29 is attached, for example, by screwing, to a foot 12 of a seat section 2 of the sofa 1. Another leg 30 of the connector 29 extends upwards to the side of the seat section 2. The connector 29 is preferably attached before the seat section 2 is placed on its feet 12.

[0056] After the seat parts 2 have been set up, an adjacent seat part 2 is placed on the connector 29 such that one of the walls 7 of the box-shaped base part 5 overlaps the upwardly projecting leg 30 of the connector 29, whereby the two seat parts 2 are connected to each other with their sides adjacent to each other in a tensile-resistant manner. Lateral bevels 31 on the upwardly projecting legs 30 of the connector 29 align the seat parts 2 to each other during connection.

[0057] It is also possible to connect the seat parts 2 of the sofa 1 according to the invention, as with the back parts 3 and the side parts 4, with struts 20 or reinforcements on their feet 12. However, the sofa 1 must then be placed as a whole on its feet 12, which is why connecting the seat parts 2 after installation is considered advantageous.

[0058] Preferably, before joining, a slipcover-like upholstery cover 22 and, above this, a slipcover 23 are pulled over the seat parts 2, back parts 3, and side parts 4 of the modular sofa 1 according to the invention. The upholstery covers 22 extend down the sides of the box-shaped base parts 5, 16 of the seat parts 2, back parts 3, and side parts 4 to the lower edges of the box-shaped base parts 5, 16 and also cover the upholstery 13. The slipcovers 23 are made, for example, of fabric, leather, or plastic, for example of a nonwoven fabric containing microfibers.

[0059] The slipcover-like upholstery covers 22 and the slipcovers 23 can be pulled over the base parts 5, 16 and the cushions 13, 14, 18 of the seat parts 2, back parts 3, and side parts 4, even when the base parts 5, 16 are connected. For example, it is not necessary to separate the seat parts 2, back parts 3, and side parts 4 from one another to wash or change the upholstery covers 22 and the slipcovers 23; instead, the upholstery covers 22 and the slipcovers 23 can be pulled off the connected seat parts 2, back parts 3, and side parts 5 and pulled back on. Before removing the slipcovers 23, the threading rods 25 must be unhooked from the pins 26 in the hollow spaces 10 of the box-shaped base parts 10, which are open at the bottom, or the threading rods 25 must be pulled out of the loops 24 of the slipcovers 23.

[0060] The covers 23 are covers which, like the upholstery covers 22, are pulled from above over the box-shaped base parts 5, 16 of the seat parts 2, back parts 3 and side parts 4, cover the upholstery 13 and are attached to the lower edges of the box-shaped base parts 5, 16 as in Figure 4can be seen folded inwards and upwards again. The covers 23 have loops 24 on their lower edges, which are folded inwards and upwards again on the insides 27 of the walls 7 of the box-shaped base parts 5, 16 of the seat parts 2, back parts 3 and side parts 4. The walls 7 of the box-shaped base parts 5, 16 form enclosures 28 of the lower hollow spaces 10 of the box-shaped base parts 5, 16 of the seat parts 2, back parts 3 and side parts 4 of the modular sofa 1 according to the invention, which are open at the bottom. Threading rods 25 are or will be inserted through the loops 24 and are or will be hooked onto pins 26 or hooks inside at the bottom of the walls 7 or enclosures 28 of the lower hollow spaces 10 of the box-shaped base parts 5 of the seat parts 2, back parts 3 and side parts 4 of the modular sofa 1, whereby the covers 23 are detachably attached to the seat parts 2, back parts 3 and side parts 4.In the exemplary embodiment, the loops 24 are flexible flat structures that extend along the folded lower edges of the covers 23 on the inner sides 27 of the surrounds 28 of the lower cavities 10 of the base parts 5, 16 of the seat parts 2, back parts 3, and side parts 4, and are interrupted only in the area of ​​the pins 26 or hooks to which the threading rods 25 are attached. The covers 23 can be attached and removed from the seat parts 2, back parts 3, and side parts 4 by hand without tools.

[0061] In the exemplary embodiment, the threading rods 25 are made of metal. Threading rods 25 made of plastic, including fiber-reinforced plastic, wood, or another material are also possible. Particularly in the case of a wide sofa 1 or generally long sides of the seat part 2, back part 3, or side part 4, several threading rods 25 can be arranged one behind the other in the loops 24 of the cover 23. The ends of the threading rods 25 can overlap, abut, or be spaced apart.

[0062] On the backs of the back parts 3 facing away from the seat parts 2, the upholstery covers 22 and the slipcovers 23 do not have to cover the back parts 3. Likewise, the upholstery covers 22 and the slipcovers 23 can end at the tops 8 of the seat parts 2 on the fronts of the back parts 3 and the insides of the side parts 4 facing the seat parts 2.

[0063] The covers 23 hold the cushions 13, 18 in the cavities 17 of the box-shaped base parts 5, 16 of the seat parts 2, the back parts 3 and the side parts 4.

[0064] The modular sofa 1 according to the invention can be assembled and disassembled using a wrench as the only tool or, in embodiments of the invention, without tools.

Claims

1. Modular sofa, with a seat part (2) and with a back part (3) which is arranged on a rear side of the seat part (2) and has a backrest (19) on a front side of the back part (3) facing the seat part (2), which backrest projects upwards over an upper side (8) of the seat part (2), characterized in that the seat part (2) and / or the back part (3) has a hollow space (10) open at the bottom on an underside (11) and a cover (23) which is pulled from above over the seat part (2) and / or the back part (3) and is folded over at the underside (11) into the hollow space (10) open at the bottom and is fixed in the hollow space (10).

2. Modular sofa according to claim 1, characterized in that the cover (23) is suspended on an inner side (27) of a frame (28) of the hollow space (10) open at the bottom on the underside (11) of the seat part (2) and / or the back part (3).

3. Modular sofa according to claim 2, characterized in thatthe cover (23) has a loop (24) which is folded over onto the inside (27) of the enclosure (28) of the cavity (10) open at the bottom and is hooked onto the inside (27) of the enclosure (28) of the cavity (10) open at the bottom.

4. Modular sofa according to claim 3, characterized in that a threading rod (25) is inserted through the loop (24) and is hooked onto the inside (27) of the enclosure (28) of the hollow space (10) open at the bottom on the underside (11) of the seat part (2) and / or back part (3).

5. Modular sofa according to one or more of the preceding claims, characterized in that the seat part (2) and / or the back part (3) has a box-shaped base part (5) with an intermediate floor (6) and upright walls (7) framing the intermediate floor (6), which project downwards beyond the intermediate floor (6) and form the enclosure (28) of the hollow space (10) which is open at the bottom.

6. Modular sofa according to one or more of the preceding claims, characterized in thatthe seat part (2) and the back part (3) have feet (12) on an underside (11), that the feet (12) of the seat part (2) and the back part (3) are rigidly and detachably connected to one another in such a way that the back part (3) is connected to the seat part (2) via the rigid connection of the feet (12) and the back part (3) is held upright by the seat part (2) and that the back part (3) is detachable from the seat part (2).

7. Modular sofa according to claim 6, characterized in thatthe sofa (1) has a side part (4) which is arranged on a side edge of the seat part (2) adjacent to the back of the seat part (2), which side edge projects upwards beyond the top side (8) of the seat part (2) and which has feet (12) on an underside (11) of the side part (4) which are rigidly and detachably connected to feet (12) of the seat part (2) and / or the back part (3) in such a way that the side part (4) is connected to the seat part (2) and / or the back part (3) via the rigid connection of the feet (12) and the side part (4) is held upright by the seat part (2) and / or the back part (3).

8. Modular sofa according to one or more of the preceding claims, characterized in that interconnected feet (12) of the sofa (1) are connected to a strut (20) or stiffener detachably connected to the connected feet (12).

9. Modular sofa according to one or more of the preceding claims, characterized in thatthe sofa (1) has one or more further seat parts (2) which are arranged on a front side opposite the back of the seat part (2) or on a side edge of another seat part (2) and which has feet (12) on an underside (11) which are rigidly and detachably connected to feet (12) of the other seat part (2) in such a way that the further seat part (2) is connected to the other seat part (2) via the rigid connection of the feet (12).

10. Modular sofa according to one or more of the preceding claims, characterized in that the sofa (1) has one or more further seat parts (2) which are arranged on a front side opposite the back of the seat part (2) or on a side edge of another seat part (2) and are detachably and tensile-resistantly connected to the one seat part (2).

11. Modular sofa according to one or more of the preceding claims, characterized in thatthe seat part (2) is self-standing on its feet (12) and / or the back part (3) and / or the side part (4) are not self-standing on their feet (12).

12. Modular sofa according to one or more of claims 5 to 11, characterized in that the feet (12) protrude from an underside (11) of the intermediate floor (6) of the seat part (2), the back part (3) and the side part (4).

13. Modular sofa according to one or more of claims 5 to 12, characterized in that the walls (7) of the base part (5) of the seat part (2) project upwards over the intermediate floor (6) and that a cushion (13) is arranged on the intermediate floor (6) of the base part (5) of the seat part (2), which cushion is held laterally in all directions against slipping by the walls (7) of the base part (5) framing the intermediate floor (6).

14. Modular sofa according to one or more of the preceding claims, characterized in thatthe seat part (2) has a cushion (13) made of an elastic foam with a hollow space (14) open at the bottom, in which a base spring (15) is arranged.

15. Modular sofa according to one or more of the preceding claims, characterized in that the back part (3) and / or the side part (4) has a box-shaped base part (16) which projects upwards over the upper side (8) of the seat part (2) and which has a hollow space (17) open on a front side or inside facing the seat part (2), in which hollow space a cushion (18) is arranged.

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