HUE029881T2

HUE029881T2 - Foldable board

Info

Publication number: HUE029881T2
Application number: HUE12183981A
Authority: HU
Inventors: Raimund Hagspiel; Tobias Duelberg
Original assignee: Fritz Egger Gmbh & Co Og
Priority date: 2011-09-16
Filing date: 2012-09-12
Publication date: 2017-04-28
Also published as: EP2570052A1; EP2570052B1; DK2570052T3; PL2570052T3; DE102011113389A1

Description

The invention relates to a foldable panel, In particular consisting of a wood material or woodhaving two panel portions separated from each other which respectively comprise a visible side and a rear side and having a binge element consisting of a band-shaped material, wherein the hinge element respectively pivotably connects two panel portions to each other, wherein the hinge element is formed as an adhesive tape, the hinge element is arranged on the rear aides or the panel portions,wherein the panel portions adjoining each other form a point and wherein at least one of the panel portions comprises a recess on the edge facing the rear side along the j cint.

The use of panels of this type as furniture backing, in particular of cabinets is known from the prior art. The advantage of the foldabiiity of these panels is that the panels comprise a smaller dimension in the folded state and thus space-saving is achieved when storing and transporting the panels. The panels usually comprise one fold, however folding panels, which can be folded at two or more points, are also known, A foldable panel having a hinge element consisting of an adhesive is known from 5? 1 792 551 Bi, which comprises a depression for receiving the adhesive layer on the sides of the panels adjoining each other forming the joint, foldable panels are known from DE 198 04 787 Μ, EE 0 759 8 39 Bl and DE 103 54 460 B3, which comprise a profile at the edges of the joint forming between the panels, said profile is provided with the adhesive layer, wherein the three publications are only distinguished from one another by the shape of the profiles, PE 103 54 460 B3 comprises perpendicularly running side edges, while DE 198 04 787 A1 comprises a V-profile from the rear side towards the visible side and EP 0 759 839 Bl comprises a crapesordal profile.

Furthermore, US 3,741,843 discloses a method to pivotably connect two panels, the side edges of which adjoin, each other in the contact region on the rear side with ah adhesive hinge.

Generic foldable panels ere also known from 55 2 177 130 A2, US 2005/0229531 Al, WO 2006/087008 A1, DU 297 15 787 Ui and DU 290 24 176 Ui,

The disadvantage in the case of these embodiments is that the manufacture: is very complex and that for panels, which are stacked in the folded state, excessive pressure is exerted on the edge provided with an adhesive layer. The adhesive layer is thereby damaged and the adhesive layer thus has only limited durability. Furthermore, the adhesive layer, when it is rigidly connected to the profile of the side edges, is exposed to a tension in the folded state which also constitutes a load for the adhesive layer,

The technical object underlying the present invention is to provide a foldable panel made of two panel portions which is easy to manufacture and comprises a stable and durable connection of the two panel portions.

According to the invention, the object is achieved fey a foldable panel with the features of the characterising part of claim 1. To this end, according to the invention the hinge element spans the at least one recess in. the folded apart state.

Due to the tact that at least one of the panel portions comprises a recess on the edge facing the rear side along the joint, no pressure is exerted by the panel portions lying on top in the stacked state on theformedfeending point of the adhesive tape in the folded state. For thermore, the adhesive tape has inside the recess in the folded state enough room for a curve without an. excessively small curvature radius. The durability of the adhesive rape can hereby be extended since even repeatedbendingdoes hot damage the hinge element,

Due to the high tensile strength thereof, which is also present in the case of prior damage a Iready having taken Place,· refer ic--re in forced adhesive tapes for use as hinge elements have been found to be advantageous tor foldable panels, The high tensile strength of the fibres and threads used to reinforce such tapes, in the case of high pressure loading in the bent state, thus in the case of folding over these tapes, is lost, it can sometimes also lead to the breaking of the same. This problem car toe effectively countered by way of the relief according to the invention by means of the recess in this region.

The at least one recess prefer ably comprises one at least partially inclined edge. The depth of the inclination is selected such that the stability of the panel is not influenced in the folded apart state:. In the folded apart state, at least the edges of the joint facing the front side touch so that sufficient stability of the panel in the folded apart state and thus during use of the panel as furniture backing can be ensured.

Alternatively, the at least one recess can comprise a rounded edge. The same advantages hereby result as with an inclined edge as she recess profile.

Preferably cue depression is respectively formed in the rear sides of the panel portions at both sides of the joint for receiving the hinge element, The hinge element inserted into the depression hereby does not protrude oyer the rear side so that a flat rear side results. In particular, the stacking both of the földed apart and also: of the folded together panels is thus facilitated since no elevated region develops when a plurality of panels are arranged on top of each other.

According to the invent 1 erg the hinge element space the at leant one recess in the folded apart state. The hinge element. In this embodiment, does hot comprise a rigid connection to the inclined and/or rounded edges of the recess.> In particular, the hinge element, in this embodiment, is not stretched in the folded state of the pariéi.

The previously described foldable panel can thus be pivoted between, a first position, in which the panel portions are arranged .substantially in one plane, and a second position, in which the rear sides rest adjacent to each other, her storage or transport, the panels can thus he folded together, whereas during use, for example as foldable furniture baching, the panel is folded apart. Furthermore, the previously described foldable panel can consist of more than two panel portions separated from each other. In. this embodiment, one hinge element respectively connects two panel portions. In the folded together state, the panel, depending on the number of panel portions, is folded multiple times. A further space saving can thereby be achieved during storage and transport of the panels.

As sí result of the: fact that the hinge element is arranged on the rear sides or the panel portions, the panel portions only need to be placed nest to each other during manufacture in order to then sipoly the adhesive tape. The adhesive tape then serves as a rear hinge:, while the side edges strike each other in the folded apart state. A visible side divided only by a hardly visible joint is thus formed by two panel portions. At the same time, the adhesive tape is permanently connected to the material of the panel portions since it is applied during the manufacturing process usd hardens in contact with the surface of the panel portions and forms a rigid connection with the material.

In a further preferred embodiraent of the foldable panel , the edge regions of the panel portions adjacent to each other in the folded apart state are coloured suitably for the design of the v isible side with a colourant * In particular, this colouring can take place by dyeing and/or pain ring and/or staining and/or transfer finish. This colouring adapted to the visible side is particularly advantageous for a dart design of the ars idle side since disruptive colour differences between visible side and region of the side edge are avoided for the observer. However; it is not limited to dart designs of the visible sides.

Moreover, through the sun labia selection of the layer thickness, for example of an applied colour or a paint, manufacturing tolerances can be balanced out when producing the panel portions. This also Improves the optical quality of the folding panel for the observer.

In order to apply the colour, the paint, the mordant cr the transfer finish, printing techniques and/or rolling techniques and/or iejection techniques and/or transfer printing techniques and/or other techniques disclosed in the prior art can be used.

Duo to the cost-effective manufacturing method, the described panel can be used, in particular as a product in the low-cost sector such that the folding on the visible sides doss not have a significant disadvantage over the other more expensive panels known from the prior art*:

The invention will be explained in more detail below by means of exemplary emoodiments, wherein reference is made: to the enclosed drawing, in the drawing, they show:

Fig, 1 an exemplary embodiment of s foldable panel from the prior art In the folded apart state,

Fig, 2 the exemplary embodiment, depicted in Fig, X from the prior art in the folded together state.

Fig, 3 an exemplary embodiment of a foldable panel according to the in a erdi.cn in the folded apart state,

Fig. 4 the exemplary embodiment depicted in Fig. 4 in the folded together state.

Fig. 6 a second exemplary eeibodiment of a foldable panel according to the invention in the folded apart c.. w ‘.".’i... e,

Fig. 6 the exemplary embodiment depicted in Fig. 5 in the folded together state/

Fig. 7 a third exemplary embodiment of a foldable panel according to the invention in, the folded apart s t a re ,

Fig. 8 the exemplary embodiment depicted In Fig. 7 in the folded together state.

An exemplary embodiment of a foldable panel 2 from the prior art is depicted in Fig. I and 2, which corapriseá two panel portions 2a and 2b separated from each other.

The panel portions 2a and 2b consist, in partiedar, of a wood material, such as medium-densIty fihrematerial (MDF), high-density bib remoter:;, a i (HhF) , hard fibre material, chipboard material or oriented strand board (OSB) material, of natural wood, of plastic, of a wood/plastio mixture or of a metal.

The panel portions 2a, 2b respectively comprise a visible side id, 4b and a rear side 6a, 6b, the visible sides is, 4b can,

In this regard, foe formed by a laminate coating with decorative paper, a foil coating or by a direct colour or paint application, The two panel portions 2a. 2b ara connected to a binge element 8 consisting of a band'·'shaped material such that the bingo element 8 pivetably connects the two panel port ions 2 a, 2b to each other .

The binge element 8 is preferably formed as a fabric-reinforced adhesive tape 10 on the rear sides 6a, 6b of the panel portions 2a, 2b, To this end, the adhesive tape 10 is located in the region of the joint 14 formed between the aide edges 12a, 12b adjoining each other. The adhesive tape 10 is thus arranged at both sides of the joint 14 and can exercise the intended hinge function. In the folded together state, the hinge element 8 comprises a bending point 11,

Instead of the fabric-“reinforced adhesive tape 10, an adhesive tape without reinforcement can also be used.

The adhesive tape can comprise different types of adhesive. During use, a sufficient rigidity must be present to connect the panel portions 2a, 2b, on the one hand, and sufficient elasticity to fold the panel portions 2a, 2b, on the other band. As adhesive tapes, those which comprise a mesh·-!ike tape and/or are reinforced with fibres are, in particular provided, A, first exemplary embodiment of a panel 2 according to the invention is depicted in Fig. 3 and 4, wherein Identical reference numerals identify identical elements of the panel 2 as in Fig, 1 and 2.

Unliice the exerepi.aryembod 1 ment. from the prior art, the panel portions 2a, 2b comprise a recess IS,in particular an inclined edge 16a, 160 or the edge of the joint 14 facing the rear aide 6a, 60. This leads to the fact that, in the folded together state as depicted in Fig. 4, and in particular in the stacked state, no pressure can be exerted on the bending point 11 of the hinge element 3 by one of the panel portions 2a or by panels lying on top. Ά second exemplary embed braenf of a panel 2 according to the invention is depicted in Fig, 5 and 6 wherein identical reference numerals identify identical elements of the panel 2 as in Figs, 1 to 4,

Unlike the first exemplary arabod iménti the inclined edge lea, 16b is smaller on the edge of the joint 14 facing: the rear side 6a, 6b. This leads to the: fact that, in the felded apart state as: depicted in fig, 5, improved stability is ensured since the: side edges 12a, 12b comprises a larger contact surface. In the folded together state as depicted in Fig, 6, pressure on the banding point id. is also relieved, furthermore, a depression Ida; 18b is respectively formed in the panel portions 2a, 2b at both, sides of the joint 14 for receiving the fabric'--reinforced adhesive tape 10» This leads to the fact that the adhesive: tape 10 does hot protrude over the rear sides 6a, 6b such that a planar rear side 6a, 6fc respectively results. The stacking of the panels both in the folded apart state, as depicted in Fig, 5, and also in the folded together state, as depicted in Fig, 6, is hereny.facilitated since no excessively elevated regions develop.

Figs, 7 and 8 show a third exemplary embodiment of a panel 2 according to the invention, wherein identical reference numerals identify identical elements of the panel 2 as in Figs, 1 to 6,

Unlike the first two exemplary embodiments, the recess: IS comprises a rounded edge l?a, 17b, This leads to the same advantages which result through a recess 15 in the form of an inclined edge 16a, 16b in Figs. 3 to 6. Thus no pressure is exerted on the bending point 11 of the hinge element 8 in the folded together state in Fig. 8,

In all exempia;: y embodiments of Figs·, 1 no 8, the hinge element 8 spans the joint 14 terminer between the side edges 12a, 12b adjoining each other. In particular, the hinge element 8 spans the recess IS in Figs. 3 to 8, wherein the hinge element 8 is not connected to the .Inclined edges Isa, 16b and/or to the rounded, edges 17a, 1/fc, This leads to the fact that the hinge element 8, in the folded together state in Figs. 4, 6 and 8, is not exposed to any stress in particular at the bending point 11.

Claims

FOLDABLE SHEETS SILICATELY LETTERS

1. A combination of ' s sheet, * - comprising a plurality of spaced apart pieces (28, 2b) having a hub color side (4a, 4b) and a backside (6a, Ab), and including a ribbon foxmate asy. b6! .6He ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ _ ^ _ ^ (%% wrist hinge & Umbrella to connect the yokex (2¾ 2b) twistedly to each other, where the hinge (8) is formed as an adhesive tape (10) where 8) the filler pieces (2a, 3b) are loaded with the pawl, 6b), where the teeth (14) of the adjacent sheet pieces (2a, 2b) are formed, and wherein at least one of the sheet pieces (2a, 2b) is the backside. (6a, 6b) has a recess (15;) along its teeth (14), abo! the pendulum p) dislocates the at least one recess (15) on the displacement, characterized in that, iapdamhöfc (2a, 2b) in the extended state, the teeth (14) in the area of the color faces (4a, db) coincide, and ···· the at least one recess (1 5) is formed in the direction of the color side (4a, 4b) starting from the first bellows (8) of the rain,

The sheet according to claim 1, characterized in that the hinge band (8) of the strip-shaped material is formed as a tissue-reinforced adhesive tape (10).

3. According to claim 1! sheet, characterized in that the at least one uterus cues, (15) at least partially oblique with the edge (16a, 16b), 4. The sheet according to claim 2, wherein the at least one recess (15) is retrieved (t H has a wind (17a, 17b).

5. A sheet according to one of Ir> 3 ;, characterized in that the recess (2a, 2b) has a recess (I8a, 18b) on both sides of the joint (14) on both sides of the joint (14). to accommodate the hinge (8).