DE202004021481U1 - Use of hollow profiles made from cardboard or hard paper for furniture - Google Patents

Abstract

Use of hollow profiles of cardboard, cardboard or paper for furniture, characterized by the combination of the following features:
• By means of the hollow profiles, a frame is formed, consisting of vertical corner profiles (posts) (1 to 4) and horizontal or obliquely arranged connection profiles (5 to 16),
The vertical corner profiles (1 to 4) have a larger diameter or a greater width than the connecting profiles (5 to 16),
For the positive reception of the connection profiles (5 to 16), the corner profiles (1 to 4) are provided with recesses (21, 22) which are identical in shape and size to the cross sections of the connection profiles (5 to 16),
• the connection profiles (5 to 16) are compared with the corner profiles (1 to 4) either by the use of fasteners between the connecting and corner profiles (5 to 16 and 1 to 4), by arrangement of releasable connection means (24, 25) between the mutually facing ends of adjacent connection profiles (5 to ...

Description

The The invention relates to the use of cardboard, cardboard or kraft paper molded hollow profiles as a starting material for the manufacture of furniture and the connection of the items with each other. Such profiles are among other things as stable cardboard tubes and are known, for example, for winding up floor covering used.

Furniture, with the exception of upholstered furniture, are preferably made of wood and / or plastics. They are designed according to the material and intended use. Both aesthetic and practical (usage-oriented) aspects are of importance. Deviating from this, furniture made of cardboard or paper was developed for specific applications. For example, from the utility model writings DE 89 00 997 . DE 298 21 361 U1 and DE 200 12 291 U1 Shelves known that consist of the material cardboard and this at least one-ply cardboard is folded to achieve a sufficient bending stiffness. Such furniture is light and cheap and in many cases meet the demands made on the performance characteristics. For this purpose, both the items themselves and the compounds of these items must be made stable and wear resistant to each other. This connection of the items together can be particularly problematic danm when it should be solvable to set up and dismantle the piece of furniture as needed.

From the publication DE 195 41 040 A1 a desk made of cardboard, paper or cardboard known. The strength required for this commodity is achieved through the use of honeycomb panels for the structural parts. The surface of the material used has no special strength characteristics. To assemble the items each one part is provided with a slot and the other with a projection. After the items are put together during assembly, they are glued together.

From the patent DE 195 44 653 C1 In addition, a suitable for furniture products plate material is known that consists of several layers of cardboard and interposed honeycomb material. For bonding the individual material layers together, a binder is used. During the curing process, the individual materials are pressed together.

Furthermore, from the utility model DE 88 02 882 U1 a shelf consisting of two lateral support columns and several shelves known, which consist of corrugated cardboard or cardboard and are folded to ensure sufficient stability as triangular cross-sections. The support columns have a larger cross-section than the shelves and are provided with openings having the shape and size of the shelves, for receiving these shelves. The shelves are held positively in these openings and need not be processed to ensure a closed cross-section. In order for the pillars to receive sufficient stability as open-sided triangular profiles, they are provided with locking tabs, which are held on the outside by the insides of the slots incorporated centrally in the shelves during assembly. At the top, the columns are each closed by a triangular cover element, which has tabs on all three sides. Where the profile of the support is open and provided with the Aretierunggslaschen, the flap in question as well as the shelves on a slot and holds so in addition to the Borden the triangular cross-section of the column together. Furthermore, between the columns and the Borden a frictional connection, which depends on the dimensional accuracy of the recesses and the material thickness and can not be adjusted or changed. To accommodate large forces and multiple mounting such a connection is not suitable.

In addition, from the utility model DE 79 22 957 U1 a stackable shelf known whose support columns and shelf inserts made of cardboard. For releasably securing the shelf inserts to the supports externally arranged and thus visible connectors and reinforcements are provided to increase the strength.

From the utility model DE 75 18 626 is a not visible from the outside screw / plug connection for demountable box furniture known. Such a connection is mainly used in furniture made of a material that is not suitable for multiple screwing and loosening again. As such a preferred material used especially chipboard are known.

Farther are under the Internet address info @ rod-design-de furniture Corrugated board known, which are designed and manufactured material-appropriate. This is about light and cheap furniture such as stools, chairs, To make tables, beds and shelves made of corrugated cardboard stable and functional.

Furthermore, it is known to produce furniture from bamboo tubes. While this material is a commonly used raw material for furniture in the vegetation areas that are favorable for the growth of bamboo plants, this material is used to make designer furniture in Europe. Such Bamboo furniture is upscale and is offered by HIGH TOUCH. The bamboo tubes are either provided with holes and plugged together or intertwined by binding material. The open ends are closed with plugs or by a cap-shaped braid. The floor standing bamboo pipe ends are provided as a wear-resistant finish with a clip-on foot. So that the bamboo material does not dry out and breaks, it is provided with a preservative. By pickling the bamboo can be colored.

It The object of the invention is the use of hollow profiles made of cardboard, Cardboard or hard paper as base material for the manufacture of furniture thereby to enable that it's both in terms of strength and aesthetics the for Furniture applicable claims Fulfills and the processing and the joining of the items of a piece of furniture in a simple Way possible is. In doing so may the connections of the hollow profiles with each other and the hollow profiles even in the area of their connections with each other even after one repeated assembly and disassembly of the individual parts are not damaged. It can be assumed that existing from such a material Profiles on the one hand have high stability and in a particular area are elastic, their surface However, what is, so that when repeated joining the furniture parts a material abrasion would arise. Therefore, it is necessary to know the connections of the items to shape it to fit the specific material properties are.

These Task is by a material-appropriate training of the compounds the items according to the features of the 1st protection claim solved. Finally, it will the piece of furniture with a colored, hard and wear-resistant coating provided by its surface becomes more stable and it gets an individual look.

• • Die Verbindungsprofile werden gegenüber dem Eckprofil durch Befestigungselemente (Keile, konische Bolzen, Kerbstifte, Schrauben und ähnliches) fixiert.
• • Die zueinander weisenden Enden der Verbindungsprofile werden durch Verbindungsmittel wie beispielsweise flexible oder starre Zugmittel miteinander lösbar verbunden.
• • Zur Aufnahme der Verbindungsprofile werden in dem Eckprofil Eckformstücke angeordnet, die jeweils als Hülsen oder Rundstücke die Enden der Rohre kleineren Durchmessers formschlüssig von außen umschließen oder innen aufnehmen.
• • Die Verbindungsprofile werden in die im Eckprofil eingebrachten Bohrungen gesteckt und mittels eines Spreizdorns aufgeweitet, so dass ein Presssitz entsteht.

The compounds of the individual parts together by the use of round or polygonal hollow profiles of different width or outer diameter, the larger profiles are preferably used as posts or columns for the corners and at the same time are the legs of the piece of furniture. They are called corner profiles. In these profiles recesses for the profiles of smaller width or smaller diameter are introduced, which are referred to as connection profiles. The corner profiles are usually arranged at right angles to the connection profiles. The attachment of the profiles to each other is carried out by a mating of three profiles in a common intersection, of which two mutually perpendicularly arranged connecting profiles of smaller diameter are received by a respective hole in a corner profile of larger diameter. For fastening the profiles together several possibilities are provided:

• • The connecting profiles are fixed with respect to the corner profile by means of fastening elements (wedges, conical bolts, grooved pins, screws and the like).
• • The mutually facing ends of the connection profiles are detachably connected together by connecting means such as flexible or rigid traction means.
• • To accommodate the connection profiles Eckformstücke are arranged in the corner profile, which surround the ends of the tubes of smaller diameter form-fitting from the outside or inside as sleeves or round pieces.
• • The connecting profiles are inserted into the holes made in the corner profile and widened by means of an expanding mandrel, so that an interference fit is created.

The special training this in principle four mounting options can be very versatile and combined with each other. There the base material of the hollow profiles made of cardboard, cardboard or kraft paper is, it has sufficient strength and has good elastic properties; where the end pieces are exposed to high local loads are special and in a repeated assembly and disassembly of a piece of furniture Can be claimed locally for protection the surface Materials higher wear resistance such as wood, plastic or rubber can be used.

The Fix the two types of profiles together by wedges or conical shaped bolts can be the simplest way to do it in practice. These fasteners be in the for it planned conical recesses embarked in the connection profile or pressed and supported so on the one hand on the wall of the larger profile. on the other hand supports the connection profile either at the opposite of the spline connection Side of the inner wall of the larger profile or across from a second smaller profile. Run the longitudinal axes Both smaller profiles at right angles to each other, can their Ends each with a slope provided by 45 ° become.

When fastening the connection profiles by means of flexible or rigid tension elements, such as belts or tension bars, the profile walls are to be provided with through holes for the direct or indirect reception of these tension elements. It is important to ensure that these holes do not tear during the tensile stress. If necessary, reinforce them with metal or plastic rings. Since the traction two perpendicular to each other arranged connecting profiles together, these are pressed by the applied tensile force on one half of the wall of the respective receiving bore of the corner profiles and are based there from. Training and advantageous embodiments of the invention are the subject of the dependent claims.

The so trained furniture have an individual look. They can be both industrial as well be made manually. Each piece of furniture can be customized be adapted for intended use. The cost of the hollow sections of cardboard, cardboard or paper, their processing and their assembly are low. The assembly of the items to a finished piece of furniture is easy and can be done by anyone become.

The Invention will be with reference to two embodiments with reference closer to drawings described. Show it:

1 a frame for a bed of a first embodiment in a perspective view,

2 a side view of the bed behind 1 .

3 a connection of the connection profiles with a corner profile in plan view,

4 the section BB after 3 .

5 the use of a support for the pipe attachment in the plan view,

6 a possibility of picking up the grate at a constant height,

7 the attachment of the grate to 6 on average CC,

8th a recording option of the grate in three stages in the section AA after 2 and

9 a television table of a second embodiment in a perspective view.

Both embodiments is common that as a material hollow profiles cardboard or hard paper tubes be used with a round cross section. In particular is the use of cardboard sleeves provided as they are for Floor coverings in the period be used after completion until laying. Such sleeves are either provided for free or can be reasonably priced be acquired. If larger quantities are needed, are These are directly available from the manufacturer.

1st embodiment

The first embodiment relates to a bed, for the frame after the 1 and 2 These hollow sections are used with a round cross-section. The posts consist of four vertically arranged corner profiles 1 . 2 . 3 . 4 larger diameter. The headboard is from the three connection profiles 5 . 6 . 7 , the foot part of the three connecting profiles 8th . 9 . 10 , the right side panel of the three connecting profiles 11 . 12 . 13 and the left side part of the three connection profiles 14 . 15 . 16 smaller diameter formed.

For decoration, the headboard with a pipe 17 provided smaller diameter. It is bevelled sideways and through the two vertically arranged tubes 18 . 19 with the upper and the middle connection profile 5 . 6 connected to the headboard. The lateral openings of the pipe 17 can be closed by a lid. Furthermore, for decoration between the side profiles forming connection profiles 5 to 16 still intermediate profiles 20 to be ordered. In the drawing after 1 is the foot part for decoration still with such connection profiles 20 Mistake.

The connection of the horizontal connection profiles 8th . 14 with the vertical corner profile 2 is in a first variant as a detail in the 3 and 4 shown. For holding the two connection profiles 8th . 14 becomes the corner profile 2 with two holes arranged at right angles to each other 21 . 22 Mistake. The connection profiles 8th . 14 have at their mutually arranged ends in each case a slope of 45 °. The connection profile 14 is with a conical bore 23 Mistake. The course of this conical bore 23 is oriented so that its wall is on the side of the corner profile 2 perpendicular and thus parallel to the inner wall of the corner profile 2 runs. When mounting the bed will be in the hole 23 a conical bolt 24 hammered or pressed in. This bolt 24 Can not be made of wood, plastic or any other hard material compared to cardboard or hard paper. For the connection of the pipe 8th with the corner profile 2 can be another variant of a wedge 25 used in the wedge-shaped recess 26 of the connection profile 8th beaten or pressed. In that on the one hand the conical bolt 24 or the wedge 25 to the inner wall of the corner profile 2 is pressed and on the other hand, the two tubes 8th . 14 At their beveled ends mutually support, creates a firm connection between the connection profiles 8th . 14 and the corner profile 2 ,

In 5 is presented a solution variant in which the ends of the two connection profiles 8th . 14 formed at right angles to its longitudinal axis are. As a common support surface is a support 27 provided, which has a back, which is the inner diameter of the tube 2 is adjusted and the prop 27 with this rounding inside at the corner profile 2 abuts and is attached to this.

Another drawing not shown releasable attachment variant of the two connection profiles 8th . 14 at the corner profile 2 is that on both the inner and the outer side of the corner profile 2 a conical bolt 24 or a wedge 25 is arranged. Such a solution is particularly suitable for rustic furniture.

To increase the stability in the repeated assembly and disassembly of the bed can for the conical bore 23 one the bolt 24 receiving sleeve 28 or the wedge-shaped recess 26 one the wedge 25 receiving slider 29 be provided as wear protection.

• • Die Verbindungsprofile werden, wie vorstehend beschrieben, gegenüber dem Eckprofil durch Befestigungselemente (Keile, konische Bolzen, Kerbstifte, Schrauben und ähnliches) fixiert.
• • Zur Aufnahme der Verbindungsprofile werden in dem Eckprofil Eckformstücke angeordnet, die jeweils als Hülsen oder Rundstücke die Enden der Rohre kleineren Durchmessers formschlüssig von außen umschließen oder innen aufnehmen.
• • Die Verbindungsprofile werden in die im Eckprofil eingebrachten Bohrungen gesteckt und mittels eines Spreizdorns aufgeweitet, so dass ein Presssitz entsteht.

For the attachment of three pipes 2 . 8th . 14 with each other at a common point of intersection, of which two connecting profiles arranged at right angles to each other ( 8th . 14 ) smaller diameter of one hole 21 . 22 in a corner profile 2 be taken larger diameter, there are even more than the possibilities described above. They can be assigned to the following groups:

• • The connection profiles are, as described above, fixed with respect to the corner profile by fastening elements (wedges, conical bolts, grooved pins, screws and the like).
• • To accommodate the connection profiles Eckformstücke are arranged in the corner profile, which surround the ends of the tubes of smaller diameter form-fitting from the outside or inside as sleeves or round pieces.
• • The connecting profiles are inserted into the holes made in the corner profile and widened by means of an expanding mandrel, so that an interference fit is created.

The special training this in principle four mounting options can be very versatile and combined with each other. There the base material of the hollow profiles made of cardboard, cardboard or kraft paper is, it has sufficient strength and has good elastic properties; where the end pieces are exposed to high local loads are special and in a repeated assembly and disassembly of a piece of furniture Can be claimed locally for protection the surface Materials higher wear resistance such as wood, plastic or rubber can be used.

The inclusion of the bedstead 30 can be adjusted either at a constant height or in steps. An advantageous possibility for the support at a height to the lower connection profiles is in 6 and 7 shown. This will be a frame 31 from carrying rails 31a . 31b . 31c . 31d used at the four, a closed rectangle forming connection profiles 6 . 9 . 12 . 15 be attached. To achieve sufficient stability are in the connection profiles 6 . 9 . 12 . 15 parallel to the support rails 31a . 31b . 31c . 31d fastening strips 32 appropriate. The support rails 31a . 31b . 31c . 31d be with the fixing strips 32 screwed. The design as a frame and the large mounting surface sufficient stability is achieved. Instead of the fixing strips 32a . 32b . 32c . 32d Cavity expansion anchors can also be used, which are located on the walls of the connection profiles 6 . 9 . 12 . 15 supported on a sufficiently large area. The load capacity of the frame 31 can be increased if he additionally by feet 33 is supported.

A step-adjustable possibility of bedstead 30 is in 8th shown. For receiving the bedstead 30 become the well-known for beds angle pads 34 used. They are on the brackets 35 gradually latched in three heights. For fixing the brackets 35 each two clamps 36 . 37 intended. This clamp 36 . 37 are stacked on a vertical pipe 38 attached, which, as shown in the drawing, in designated holes 14a . 15a . 15b . 16a from the three pipes 14 . 15 . 16 is recorded.

The posts forming corner profiles 1 . 2 . 3 . 4 be after 1 and 2 above by cover 39 . 40 . 41 . 42 closed, with in 1 the corner profile 2 without the corresponding lid 40 has been shown to show its wall in its width. Below they are wearing wear-resistant footrests 43 . 44 . 45 46 stocked. For visual design and to increase the strength of the surface, the bed is provided with a durable colored coating. It may be patterned or have structural effects to achieve a particular look.

2nd embodiment

The second embodiment relates to a television table after 9 , It consists of the four vertical corner profiles 51 . 52 . 53 . 54 and the eight horizontally arranged connection profiles 55 to 62 , The connection profiles 55 to 62 be with the corner profiles 51 . 52 . 53 . 54 like in the 3 and 4 shown for a bed by conical bolts 24 or wedges 25 connected with each other. For the tabletop 63 , which is shown in the drawing transparent, wood or glass can be used. She lies on the covers 64 . 65 . 66 . 67 that the corner profile 51 . 52 . 53 . 54 close, and be attached to this. Below are the corner profiles 51 . 52 . 53 . 54 with a wear-resistant footrest 68 . 69 . 70 . 71 Mistake. The colored coating, which is to give the table a special appearance and a hard-wearing surface, takes place as in the embodiment described above for a bed.

to increase stability can all surfaces of the building material, which touch each other and are thus exposed to increased wear, with a solid coating be provided. Such a coating Can be made of a paint, plastic or a reinforcing piece with material higher wear resistance consist.

Claims (6)

Use of hollow profiles of cardboard, cardboard or paper for furniture, characterized by the combination of the following features: • By means of the hollow profiles, a frame is formed, consisting of vertical corner profiles (posts) ( 1 to 4 ) and horizontal or obliquely arranged connection profiles ( 5 to 16 ), • the vertical corner profiles ( 1 to 4 ) have a larger diameter or a larger width than the connecting profiles ( 5 to 16 ), • for the positive reception of the connection profiles ( 5 to 16 ), the corner profiles ( 1 to 4 ) with recesses ( 21 . 22 ) in shape and size with the cross-sections of the connecting profiles ( 5 to 16 ), • the connection profiles ( 5 to 16 ) are compared with the corner profiles ( 1 to 4 ) either by the use of fasteners between the connecting and corner profiles ( 5 to 16 and 1 to 4 ), by arrangement of releasable connection means ( 24 . 25 ) between the mutually facing ends of adjacent connection profiles ( 5 to 16 ), by the use of Eckformstücken which enclose as sleeves or round pieces the ends of the connection profiles form-fitting from the outside or inside and / or fixed by the use of expanding mandrels, which are arranged in the connection profiles and when contracting by the expansion of the circumference of the connection profiles ( 5 to 16 ) in the recesses of the corner profiles ( 1 to 4 ) creates a press fit. Use of hollow profiles of cardboard, cardboard or paper for furniture according to claim 1, characterized in that the hollow profiles ( 1 to 16 ) have a round or polygonal cross-section. Use of hollow profiles of cardboard, cardboard or hard paper for furniture according to claim 1, characterized in that as fastening elements a clamping effect causing plug connections are provided, each of a circumferentially upwardly enlarging plug body such as a wedge ( 25 ), a conical bolt ( 24 ) or the like, and a recess formed in the connection profile ( 21 . 26 ) consists. Use of hollow profiles made of cardboard, cardboard or paper for furniture according to claim 1, characterized in that the connecting profiles having a smaller circumference ( 5 to 16 ) in recesses ( 21 . 22 ) of the corner profiles ( 1 to 4 ) and the circumference is widened by means of an expanding mandrel so far that between the connection profile ( 5 to 16 ) and the corner profile ( 1 to 4 ) creates a press fit. Use of hollow profiles of cardboard, cardboard or paper for furniture according to claims 1 and 3, characterized in that for the conical bore ( 23 ) a bolt ( 24 ) receiving sleeve ( 28 ) and the wedge-shaped recess ( 26 ) a wedge ( 25 ) receiving slider ( 29 ) is provided as wear protection. Use of hollow profiles made of cardboard, cardboard or paper for furniture according to claim 1, characterized in that for the stepwise reception of a bed frame ( 30 ) in three heights known angular supports ( 34 ) with brackets ( 35 ) are provided, wherein the brackets ( 35 ) for these angular supports ( 34 ) by means of an upper and a lower clamping bracket ( 36 . 37 ) on a vertical holding profile ( 38 ) are fixed in holes ( 14a . 15a . 15b . 16a ) of three parallel superimposed connection profiles ( 14 . 15 . 16 ) is recorded.