Fire door with thick edge and method of manufacture

Abstract

To achieve improved fire protection in a door with an attractive appearance and good edge protection using simple means, the invention provides a fire door (10) which comprises a door leaf (14) and a fixed door frame element as fire door elements, wherein at least one of the fire door elements has a body (16), preferably made of wood-based material, and an edge banding (15) formed preferably of veneer or plastic with a thickness of at least 2 mm, wherein the edge banding (15) has a groove (24) in which a strip (22) of intumescent material is inserted. Furthermore, an advantageous manufacturing method is proposed.

Description

[0001] The invention relates to a fire door, in particular based on wood materials, with a thick edge, i.e., an edge banding with a thickness of at least 2 mm. Furthermore, the invention relates to a manufacturing method therefor.

[0002] For the technological background and definition of terms used here, please refer to the following literature: [1] Basic Knowledge of Doors - Technical Manual, Edition 01 / 2019, Hörmann KG Sales Company (ed.), downloaded on 26 July 2023 at https: / / cdn.hoermann-cloud.de / fileadmin / _country / kataloge / pdf / HOER-HANDBUCH-Bd-01-Grundwissen_2019_.pdf [2] Manual - Doors for the Highest Demands, Edition 2023, Schörghuber Spezialtüren KG (ed.), downloaded on 26 July 2023 at https: / / www.schoerghuber.de / fileadmin / user_upload / Mediacenter / Dokume nte / Handbuch / Schoerghuber Spezialtueren_Handbuch.pdf [3] DIN EN 16034

[0003] Accordingly, a fire door is defined as a door as defined in Section 3.1 of DIN EN 16034:2014-12 that meets at least one of the properties "fire protection" or "smoke protection" as defined in DIN EN 16034. The "fire protection" property describes the ability of a door to maintain integrity and thermal insulation for a specified period of at least 30 minutes or more in the event of a fire, when tested according to DIN EN 1634-1. "Integration" (E) is the ability of the fire-protection element to prevent the passage of flame. This is verified by observation during the test, holding highly flammable cotton balls, and inserting standardized gap gauges when the door leaf is deformed. A door fulfills the "smoke protection" function if it meets the smoke-tightness requirements when tested according to DIN EN 1634-3.Smoke tightness is the ability of the smoke protection element to reduce smoke penetration to a permissible leakage rate at an air pressure difference of up to 50 Pa. For single-leaf elements, the permissible leakage rate is a maximum of 20 m³ / h, and for double-leaf elements, a maximum of 30 m³ / h.

[0004] A fire door has as door elements at least one movable leaf, in particular a door leaf, and at least one frame element to which the leaf is hinged or otherwise guided, such as in particular a frame or a side part and / or an upper part.

[0005] Regarding the state of the art, reference is also made to the following literature reference(s): [4] EP 0 795 671 B1

[0006] From [2], Chapters 7.2 and 7.3, door elements, especially door leaves, with a body made of wood-based material and various edge geometries are known. These can also be provided with an edge banding, also referred to as edge protection or simply edge banding. Edge banding supplied as strips is also simply referred to as "edge" together with a reference to the material or property of the edge banding, such as, in particular, thick veneer edge banding, ABS edge banding, PP edge banding, melamine edge banding, or thick edge banding or thermoplastic edge banding. Thick edge banding refers to edge banding with a thickness of 2 mm or more. For example, door leaves can be provided with an ABS edge banding, which refers to an edge banding made of ABS (a thermoplastic, elastic plastic).A distinction is made between thin "plastic edges," i.e., plastic edging with a thickness significantly less than 2 mm, and thick edges, which are edging with a thickness of 2 mm or more. Examples of thick edges are the ABS edges shown in [2], Chapter 7.3. Thick edges can also be made of other elastic plastic materials, such as PP. Thick edges (=edging with a thickness of at least 2 mm) are commercially available as strips in various designs and can be easily glued to the door leaf body or to a frame body or the body of another frame element (e.g., a fixed side panel or top panel).

[0007] While thick edges have so far mostly been used for furniture or worktops in kitchens or the like, doors based on wood materials with thick edges, as shown in [2], Chapter 7.3, have recently been introduced.

[0008] Such doors are becoming increasingly popular for the following reasons: a. For every laminate surface of the respective door element (door leaf and frame or other frame component), a matching edge (in the sense of edge banding) can be obtained; b. Thick edges are extremely impact-resistant and resilient, making door elements equipped with them particularly suitable for public buildings or other buildings with high public traffic; c. On thick edges, a radius can easily be created across the entire thickness, allowing the radius to be quite large and avoiding sharp corners. This minimizes the risk of impact injuries and their consequences, particularly for kindergartens, but also in general; d. Radii on thick edges are less susceptible to damage than sharp corners.

[0009] Thick edges, for example, are made of thermoplastics such as ABS or PP. Such thick edges are readily available on the market as strips and in a wide variety of designs. However, these readily available thick edges cannot be used in fire-resistant doors without additional costly measures.

[0010] The object of the invention is to improve fire protection with little effort in a fire door with a door element with a thick edge.

[0011] To achieve this object, the invention provides a fire door according to claim 1 and a manufacturing method according to the dependent claim.

[0012] Advantageous embodiments are the subject of the subclaims.

[0013] According to one aspect thereof, the invention provides a fire door which comprises a door leaf and a fixed door frame element as fire door elements, wherein at least one of the fire door elements comprises a body and a plastic edge banding with a thickness of at least 2 mm, wherein the edge banding has a groove in which a strip of intumescent material is inserted.

[0014] In preferred embodiments, the body is constructed from a wood-based material. In some embodiments, the body is constructed from mineral materials, metallic materials, or composites or layered structures made from wood-based materials, mineral materials, and / or metallic materials, such as aluminum or steel.

[0015] In some embodiments, the groove is provided on an outer side of the edge banding facing away from the body, and the outer side of the edge banding is covered with a coating having a thickness of less than 2 mm by the strip of intumescent material arranged in the groove. Preferably, the coating is made of the same or a similar material as the edge banding; for example, the coating is a plastic coating or a veneer coating.

[0016] It is preferred that the groove is provided on an inner side of the edge banding directed inwards towards the body, so that the strip of intumescent material is covered on the outer side by the edge banding.

[0017] It is preferred that the edge banding has a visible surface that is identical in appearance to an adjacent surface of the fire door element.

[0018] It is preferred that the edge banding be made of a plastic from the group consisting of thermoplastic, ABS, and PP. In some embodiments, the edge banding is also made of a veneer—thick veneer.

[0019] It is preferred that the edge banding has an inner side coated with an adhesive, with which it is bonded to the body. The adhesive can be applied, for example, inline during the process of attaching the edge banding to the body.

[0020] It is preferred that the edge banding is provided with the longitudinally extending groove along its entire length.

[0021] In some embodiments, the corner edges of the edge banding are sharp-edged. It is preferred that the edge banding has at least one rounded or chamfered corner edge.

[0022] It is preferred that the edge banding has a radius extending over its entire thickness or a bevel extending over its entire thickness on at least one corner edge.

[0023] It is preferred that the door leaf has a door leaf body, in particular based on wood materials, and at least one end face with a blunt or single or multiple rebated edge geometry, which is completely covered by edge banding. In some embodiments, the door leaf body is constructed from wood materials with a mineral insert and / or metallic coating. In some embodiments, the door leaf body is constructed from mineral materials and / or metallic materials, in particular with cooling inserts or insulating inserts, instead of being based on wood materials.

[0024] But the door frame element, which is designed, for example, as a frame, as part of a frame, as a side part, as part of a side part, as an upper part or part of an upper part, can also have a body, preferably based on wood materials, mineral materials and / or metallic materials (for example an elongated beam or a profile element), wherein in particular an end face facing the door leaf is preferably completely covered with the thick edge (= the edge banding).

[0025] In some embodiments, a surface change is also provided for the door leaf body and / or frame element body. For example, the body can have a veneer on the hinge side, which is preferably designed to match the overlay, while on the opposite hinge side, an HPL / ABS edge is provided in the rebate (the "overlay" in rebated doors covers the joint between the frame and door leaf on the opening side (door side) of a door. Flush-fitting doors do not have an overlay, and therefore the joint is visible. The overlay is either straight, angled, or rounded (rounded edge)).

[0026] According to a further aspect, the invention provides methods for producing a fire door element for a fire door, comprising: a) providing a body based on wood-based materials; b) providing an edge banding with a thickness of at least 2 mm such that it can completely cover one end face of the body; c) forming a longitudinally extending groove in the edge banding; d) inserting a strip of intumescent material into the groove; e) attaching the edge banding to the body.

[0027] In particular, the method is a manufacturing method for producing the fire door element provided with a thick edge of the fire door according to one of the preceding embodiments.

[0028] The naming of steps a), b), c), ... is for convenience only and does not imply any particular order of the steps. In particular, step b) can be performed before or after step a), and each of steps c) or d) can be performed before or after step e).

[0029] Preferably, step a) comprises the step: a1) producing a door leaf body from wood materials.

[0030] Preferably, step a) comprises the step: a2) providing a door leaf body with an inner door leaf frame made of plywood or laminated veneer lumber and a filling.

[0031] In some embodiments, the edge banding is provided as a "contrast edge," with a different design than the body. Preferably, step a) comprises the step: a3) providing the body with a plastic coating that matches the appearance of the edge banding.

[0032] Preferably, step a) comprises the step: a4) providing a body of a frame member of a frame or a frame element.

[0033] Preferably, step b) comprises the step: b1) providing a veneer thick-layer edge, ABS edge or PP edge having a thickness of at least 2 mm or more.

[0034] Preferably, step b) comprises the step: b2) providing the edge banding as strips or tapes (in particular rolled up).

[0035] In some embodiments, step b) comprises the step: b3) Providing the edge banding with an adhesive layer on the inside. Preferably, an adhesive layer is applied inline, i.e., only when the edge banding is applied to the body.

[0036] Preferably, step b) comprises the step: b4) providing the edge banding with an outer side identical in appearance to a visible side of the body.

[0037] Preferably, step c) is performed before step e). However, step c) can also be performed inline during edge coating, i.e., during the execution of step e).

[0038] In some embodiments, step c) comprises the step: c1) introducing the groove on an outer side of the edge banding.

[0039] Preferably, however, step c) comprises the step: c2) introducing the groove on an inner side of the edge banding.

[0040] Preferably, step c) comprises the step: c3) machining the edge banding to create the groove, in particular milling the groove into the edge banding.

[0041] In particular, the edge banding can be used for doors without fire protection function manufactured in the same factory without the groove being inserted, and can only be provided with the groove and the intumescent material to be inserted therein for the fire doors in question here.

[0042] In other embodiments, the groove can also be introduced in a different way. In some embodiments, step c) comprises the step: c4) providing the edge banding as a strip with the groove extending over the entire longitudinal extent.

[0043] Preferably, step c) comprises the step: c5) introducing the groove over a part of the thickness of the edge banding, so that material of the edge banding remains at the base of the groove.

[0044] Preferably, step c) comprises the step: c6) introducing a plurality of the grooves at a distance from one another.

[0045] Preferably, step c) comprises the step: c7) introducing the groove at a distance from corner edges and bends of the edge banding.

[0046] An embodiment of the method with sub-step c1) preferably comprises the further step: f) applying a thinner plastic coating to the outer side of the edge banding, in particular in such a way that the strip of intumescent material is completely covered.

[0047] Preferably, a thin plastic edge with a thickness (significantly) less than 2 mm is used as the plastic coating, which is also provided as a preferably rolled strip. In particular, the thin plastic edge is provided with a matching appearance to any other coating of the body.

[0048] Preferably, step d) is performed before step e). However, step d) can also be performed inline, i.e., in particular, during the execution of step e).

[0049] Preferably, step d) comprises the step: d1) providing the strip of intumescent material as tape.

[0050] Intumescent material is a material that (significantly) increases in volume when exposed to heat (above a predetermined activation temperature). It is also known as a fire intumescent or foam intumescent. Strips of intumescent material for fire doors are available from various manufacturers, for example under the brand names ROKU-Strip or Palusol.

[0051] Preferably, step d) comprises the step: d2) completely filling the groove with intumescent material.

[0052] Preferably, step d) comprises the step: d3) providing the edge banding with the groove and intumescent material inserted therein as a strip product.

[0053] Preferably, step d) comprises the step: d4) introducing intumescent material into a plurality of parallel grooves of the edge banding.

[0054] Preferably, step e) comprises the step: e1) applying the edge banding with the strip of intumescent material facing inwards to the end face.

[0055] Preferably, step d) comprises the step: e2) gluing the edge banding.

[0056] Embodiments of the invention are explained in more detail below with reference to the accompanying drawings, in which: Fig. 1 shows a horizontal section through a side region of a door leaf for a fire door with a thick edge according to a comparative example not covered by the invention; Fig. 2 shows a horizontal section through a partial region of a fire door with a side region of a door leaf and an associated frame element according to a first exemplary embodiment of the invention; Fig. 3 shows a horizontal section through a partial region of a fire door with a side region of a door leaf and an associated frame element according to a second exemplary embodiment of the invention; and Fig. 4 shows a perspective view of a thick edge used in exemplary embodiments of the fire door according to the invention.

[0057] In the following, different examples of fire doors 10 with thick edge 12 are shown based on the illustrations in the Fig. 1 to 4explained. The thick edge 12 is attached to one end face of a fire door element of the fire door 10, covering it.

[0058] The fire doors 10 comprise a door leaf 14 and a door frame element 34 as fire door elements. Fig. 1 the door leaf 14 is shown in horizontal section through a side area, for example the hinge side or the lock side, in Fig. 2 and 3 The door block 14 is shown together with the associated door frame element 34. The door frame element 34 can be a frame or a side part or a top part, as shown in different designs in the reference [2].

[0059] The thick edge 12 can be designed as shown in Chapter 7.3 of the reference [2]. The thick edge 12 is an edge banding 15 made of veneer or plastic, in particular thermoplastic plastic, such as ABS or PP, preferably with elastic properties, and with a thickness of 2 mm or more. The thick edge 12 has, in particular, a design that is identical to the design of a coating of the door leaf 14 (or the Fig. 1 door frame element 34 (not shown), as shown in Chapter 7.3 of [2].

[0060] The fire-resistant door element, such as the door leaf 14 and / or the door frame element 34, has a body 16, preferably based on wood materials, in particular of the type known from [2] or [4] (in other embodiments, other materials, such as mineral or metallic materials, may be used alternatively or additionally). Accordingly, the body 16 may have a frame, in particular made of laminated veneer lumber, a filling constructed from wood materials and / or mineral materials or may also comprise fire-resistant glass, and a coating on the broad sides that provides a desired design.

[0061] The thick edge 12 offers the advantages a. to d. mentioned in the introduction to the description. However, if the "fire protection" function is to be fulfilled, this cannot currently be achieved using thick edge 12 without additional cost-increasing measures. Cost drivers include, in particular, larger rebate depths and / or additional fittings such as top-door locks.

[0062] This will be explained below using a Fig. 1 shown, not covered by the invention, the comparative example of the door leaf 14 is explained, in which a design known from [4] has been provided with a thick rebate 12. The door leaf of Fig. 1The door leaf frame 18 comprises a laminated veneer lumber frame. A wood-based material bar 20, into which the edge geometry is incorporated, is provided on the end faces facing the door frame element (such as the frame, top panel, or side panel) or another door leaf. A strip 22 of intumescent material—a foaming agent—is provided between the door leaf frame 18 and the wood-based material bar 20. In the event of a fire, the strip 22 is intended to foam and push the bar 20 outward to seal the door gap against the penetration of fire and / or smoke.

[0063] Now, the thick edges 12 are usually made of thermoplastic material. Thermoplastics melt at temperatures that are quickly exceeded during fire tests.

[0064] The intumescent fire protection material - strip 22 - which is arranged behind the thick edge 12, still covered by wood material bars 20, expands and presses the rest of the covering wood material towards the frame rebate.

[0065] Since thermoplastic material of the thick edge 12 has melted at this point, the expansion of the foaming agent - strip 22 - is not sufficient to exert sufficient pressure against the frame rebate to reduce the deformation of the door leaf 14 or to sufficiently seal the fire chamber against oxygen, so that the failure criteria in the fire test occur significantly earlier than desired.

[0066] This effect is enhanced by the fact that the foamer - strip 22 - must additionally seal the gap with rebate air.

[0067] The effect is also enhanced if the frame rebate or other immediately adjacent edges of inactive leaves or upper panels are also coated with thick thermoplastic edge materials.

[0068] In the Fig. 2 and 3 Different versions of the fire door 10 according to the invention are shown with the door leaf 14 and the door frame element 34 with door seal 32. The same parts as in Fig. 1 are provided with the same reference numerals and their description is not repeated here.

[0069] The embodiments of the fire door 10 according to the Fig. 2 and 3As fire-resistant door elements, they comprise at least one door leaf 14 and a fixed door frame element 34. At least one of the fire-resistant door elements 14, 34 has a body 16, preferably made of wood material—for example, with the door leaf frame 18—and a veneer or plastic edge banding 15 with a thickness of at least 2 mm—the thick edge 12. The edge banding 15 has at least one groove 24 into which a strip 22 of intumescent material—foaming fire protection material—is inserted.

[0070] At the Fig. 2 In the embodiment shown, the at least one groove 24 is provided on an outer side 26 of the edge banding 15 directed away from the body 16.

[0071] Tests and fire tests have shown that no or only slight overlaps of the foaming agent - strip 22 - achieve good results, which can be explained by the fact that the folding gaps are sufficiently minimized after melting of the thermoplastics.

[0072] The arrangement of an intumescent strip—strip 22—visibly grooved into the thick edge 12 thus offers improved fire protection using simple means, but does not meet the aesthetic requirements for a uniform, closed surface of the fire door element. Especially with thick edges 12 of the type shown in Chapter 7.3 of [2], the design combination of edge and surface material is a particularly preferred feature of the design. Furthermore, the edge banding 15 cannot be made thinner either, since thinner edge bands have reduced load-bearing capacity and excessively small radii, which counteracts the advantages of thick edges 12.

[0073] At the Fig. 2 In the embodiment shown, the thick edge 12 with the outer groove 24 and the strip 22 of foaming fire protection material inserted therein is therefore covered by a thinner coating 28 of veneer or plastic, in particular a thinner edge banding.

[0074] Accordingly, the desired properties of a door element 14, 34 with a thick edge 12 can be maintained even while fulfilling the "fire protection" function very well by first gluing a thick edge 12 as a "blind edge" and then grooving it to insert the fire protection foam strip 22. This design can then be covered with a thin thermoplastic edge 28 in a matching design.

[0075] A fire test with this construction yielded a positive fire test result. The disadvantages are that two additional work steps are required for each thick edge 12 to insert and subsequently cover the foaming agent – ​​strip 22 – and that a radiused joint is formed between the blind edge – thick edge 12 – and the decorative edge – coating 28.

[0076] A blind edge with decorative properties, or at least the same carrier material, would be expensive as such; a blind edge without design features would result in an unsightly frame appearance in the radius.

[0077] The design variety of thin edge bandings 28 available on the market is significantly smaller than that of available thick edges 12 with 2 mm or more.

[0078] Fig. 3therefore shows a currently preferred embodiment in which the at least one groove 24 is provided on an inner side 30 of the edge banding 15 - thick edge 12 - directed inwards towards the body 16, so that the strip 22 of intumescent material is covered on the outer side 26 by the edge banding 15.

[0079] To produce this version, the thick edge 12 is grooved backwards and the foaming strip 22 is inserted in advance into the edge band - edge banding 15, provided as a strip. Fig. 4shows a perspective view of an example of the thick edge 12 or the edge banding 15 present as a strip with a first and a second groove 24, one of which is already provided with the strip 22 of intumescent material. For this purpose, a conventional thick edge 12 - as is also required for doors without fire protection function according to Chapter 7.3 of [2] and thus provided in the factory, e.g. by machining on the rear side - inner side 30 - can be provided with at least one groove 24, and the strip 22 can be inserted. This thick edge 12 can be stocked for the production of elements of fire doors 10. If a fire door element is manufactured, a length suitable for the respective end face can be cut off and applied, in particular glued, to the end face of the body 16 with the groove 24 and the strip facing inwards.

[0080] The currently preferred solution according to Figs. 3 and 4 the thick edge 12 is thus grooved backwards and the foamer 22 is introduced into the edge band in advance.

[0081] This has one or more of the following advantages: In the stressed parts (near the corner edges, at the overlap, ...) the thick edge 12 remains in its entire thickness. Radii are not affected by joints or blind edges - as is the case, for example, with the execution of Fig. 2The design consistency is not disrupted by visible foam elements. Any readily available, widely varying edge design can be modified in this way. Only thick edges 12 for fire doors need to be modified; no additional fire protection edges modified by the supplier are required, thus reducing the variety of materials supplied to the factory. The modification can be carried out as needed using a simple in-house system or pre-produced for stocked versions. Only the edge modification step is additionally required. The foam element on the transom construction and the associated work steps can be omitted.

[0082] For further details on the possible construction of the fire door 10 and its elements, please refer to [2].

[0083] A preferred design for the thick edge 12 is an ABS edge, which offers impact resistance and also provides daycare protection (protection for children if they run into doors). The thick edge 12, especially ABS edge, is supplied on continuous rolls.

[0084] In some embodiments, at least one groove 24 or several parallel grooves 24 are milled into the thick edge 12, and a foaming strip 22 is inserted. The thus modified thick edge 12 can then be rolled up again and inserted in the process of gluing (unrolling from a roll). Fire tests with the door leaf of the Fig. 3 The type shown with an ABS edge has produced very good results.

[0085] What works for ABS edges also works for other thick edges (e.g. veneer).

[0086] In the Figures 2 and 4On the left, the door leaf 14 is shown as an example of one of the elements of the fire door 10. As shown in the Fig. 2 and 3 As shown on the right, the solution also works with frames or other fixed parts - door frame element 34 - of the fire door 10. List of reference symbols:

[0087] 10 Fire door 12 Thick edge 14 Door leaf 15 Edge banding (made of plastic, especially thermoplastic, with a thickness of 2 mm or more) 16 Body 18 Door leaf frame 20 Wood-based transom 22 Strip of intumescent material (intumescent fire protection material, foam) 24 Groove 26 Outside 28 Coating (thin artificial edge, edge banding with a thickness significantly less than 2 mm) 30 Inside (back of thick edge) 32 Door seal 34 Door frame element

Claims

1. Fire door (10) comprising a door leaf (14) and a fixed door frame element (34) as fire door elements, wherein at least one of the fire door elements (14, 34) comprises a body (16) and an edge banding (15) with a thickness of at least 2 mm, wherein the edge banding (15) has a groove (24) in which a strip (22) of intumescent material is inserted.

2. Fire door (10) according to claim 1, characterized by that the groove (24) is provided on an outer side (26) of the edge banding (15) directed away from the body (16), and that the outer side (26) of the edge banding (15) is covered with the strip (22) of intumescent material arranged in the groove (24) with a veneer or plastic coating (28) with a thickness of less than 2 mm.

3. Fire door (10) according to claim 1, characterized by thatthe groove (24) is provided on an inner side (30) of the edge banding (15) directed inwards towards the body (16), so that the strip (22) of intumescent material is covered on the outer side (26) by the edge banding (15).

4. Fire door (10) according to one of the preceding claims, characterized by that the edge banding (15) 4.1 has a visible surface identical in appearance to an adjacent surface of the fire door element (14, 34); and / or 4.2 is formed from a veneer or a plastic from the group comprising a thermoplastic, ABS and PP; and / or 4.3 has an inner side (30) provided with an adhesive, with which it is glued to the body (16); and / or 4.4 is provided with the longitudinally extending groove (24) over its entire length; and / or 4.5 has at least one rounded or chamfered corner edge.

5. Fire door (10) according to one of the preceding claims, characterized by thatthe body (16) is made of wood material and / or mineral material and / or metal and / or an aluminum or steel material.

6. Fire door (10) according to one of the preceding claims, characterized by that the door leaf (14) has a door leaf body (16) and has at least one end face in blunt or single or multiple rebated edge geometry, wherein the end face or a rebate thereof is completely covered by edge banding (15).

7. A method for producing a fire door element (14, 34) for a fire door (10), comprising: a) providing a body (16) for forming the fire door element (14, 34); b) providing an edge banding (15) with a thickness of at least 2 mm such that it can completely cover an end face or a rebate region of the body (16); c) introducing a longitudinally extending groove (24) into the edge banding (15); d) inserting a strip (22) of intumescent material into the groove; e) attaching the edge banding (15) to the body (16).

8. Method according to claim 7, characterized by thatStep a) comprises at least one or more of the following steps: a1) producing a door leaf body (16); a2) providing a door leaf body (16) with an inner door leaf frame (18) made of plywood or veneered lumber and a panel; a3) providing the body (16) with a veneer or plastic coating identical in appearance to the edge banding (15); a4) providing a body of a frame member of a casing or a frame element; a5) providing the body (16) from wood materials and / or mineral materials and / or metallic materials.

9. The method according to claim 7 or 8, wherein step b) comprises at least one or more of the steps: b1) providing a veneer thick-layer edge, a plastic edge, ABS edge or a PP edge with a thickness of at least 2 mm or more; b2) providing the edge banding (15) as a tape or strip; b3) providing the edge banding (15) with an adhesive layer on the inner side (30); b4) providing the edge banding (15) with an outer side (26) identical in appearance to a visible side of the body (16).

10. Method according to one of claims 7 to 9, characterized in thatStep c) 10.1 is carried out before step e) or when carrying out step e) and / or 10.2 comprises at least one or more of the steps: c1) introducing the groove (24) on an outer side (26) of the edge banding (15); c2) introducing the groove (24) on an inner side (30) of the edge banding (15); c3) milling the groove (24) into the edge banding (15); c4) providing the edge banding (15) as a strip, strip material or roll material with the groove (24) extending over the entire longitudinal extent; c5) introducing the groove (24) over part of the thickness of the edge banding (15), so that material of the edge banding (15) remains at the base of the groove; c6) introducing several of the grooves (24) at a distance from one another; c7) Inserting the groove (24) with a distance to the corner edges and bends of the edge banding (15).

11. Method according to claim 10, with sub-step c1), characterized bythe next step: f) applying a thinner plastic coating (28) to the outside (26) of the edge banding (15).

12. Method according to one of claims 7 to 11, characterized in that Step d) 12.1 is carried out before step e) and / or 12.2 comprises at least one or more of the steps: d1) providing the strip (22) of intumescent material as a strip; d2) completely filling the groove (24) with intumescent material; d3) providing the edge banding (15) with the groove (24) and intumescent material inserted therein as a strip or roll; d4) introducing intumescent material into a plurality of parallel grooves (24) of the edge banding (15).

13. Method according to one of claims 7 to 12, characterized in thatStep e) comprises at least one or more of the steps: e1) applying the edge banding (15) with the strip (22) of intumescent material directed inwards to the end face; e2) providing the edge banding (15) with an adhesive; e3) gluing the edge banding (15).

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