Storage box with plaster coating

The storage box with a profiled microtopography support plate and adhesion promoter layer addresses the challenge of integrating with plastered building facades by ensuring a durable and aesthetically seamless bond, enhancing durability and ease of installation.

DE202025107505U1Active Publication Date: 2026-03-19METZLER GMBH & CO KG
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Patent Information

Application Number
DE202025107505
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-12-05
Publication Date
2026-03-19
Estimated Expiration
2035-12-31

AI Technical Summary

Technical Problem

Conventional storage boxes made of wood or metal surfaces are difficult and costly to aesthetically integrate with plastered building facades due to unreliable and non-durable plaster bonds, which crack and detach over time, requiring complex and expensive preparation.

Method used

A storage box with a support plate featuring a powder coating having a profiled microtopography that creates a mechanical interlocking effect with plaster, enhanced by an optional adhesion promoter layer, ensuring a durable and weather-resistant bond.

Benefits of technology

The profiled microtopography and adhesion promoter layer provide a robust, durable, and aesthetically seamless integration of the storage box with plastered building facades, simplifying installation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

Storage box (100) comprising a frame (110) and at least one carrier plate (200) attached to the frame (110), characterized in that the carrier plate (200) has on its outer surface a powder coating (300) with a profiled microtopography, which is designed to provide adhesion for a plaster layer (320).
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Description

[0001] The present invention relates to a storage box comprising a frame and at least one support plate attached to the frame.

[0002] Storage boxes of this type are frequently placed outdoors, for example, to store waste containers or garden tools in a concealed and organized manner. Storage boxes whose external appearance is determined by the material of the box itself, such as wood or metal, are known from the prior art. Alternatively, cladding or suspended partition walls are used, which also typically consist of wood or metal panels.

[0003] A significant drawback of these well-known solutions is that visually matching them to a plastered building facade is difficult and costly. Often, there is a desire to aesthetically integrate the storage box into the overall appearance of the building. However, the surfaces of conventional boxes, especially smooth metal or wood surfaces, do not provide a sufficient base for the direct application of plaster. Attempts to plaster such surfaces directly often result in an unreliable and non-durable bond. Under the influence of weather, the plaster layer tends to crack and can detach over time, leading to an unsightly appearance and requiring regular repairs. Preparing such unsuitable surfaces for durable plastering is complex, time-consuming, and expensive.Furthermore, such constructions appear cumbersome and unsightly due to the resulting material thickness.

[0004] The present invention is therefore based on the objective of further developing a storage box of the type mentioned at the outset in such a way that it can be provided with a layer of plaster in a simple, reliable and durable manner in order to enable seamless optical integration into the environment of a plastered building facade.

[0005] This problem is solved by a storage box having the features of claim 1. Advantageous embodiments and further developments of the invention are described in the subsequent dependent claims.

[0006] The storage box according to the invention consists of a basic frame and at least one attached support plate, which defines its external appearance. The key feature of the invention is that the support plate has a powder coating on its outer surface with a specifically designed, profiled microtopography. This special surface structure is designed to serve as an ideal bonding agent for a subsequently applied plaster layer. In contrast to the prior art, where directly plastering smooth box surfaces leads to unreliable and non-durable results, this invention provides a technical solution that ensures a permanent bond between the support plate and the plaster. The microtopography creates a mechanical interlocking effect, whereby the plaster grips the recesses of the surface, thus forming a large-area, weather-resistant, and durable adhesive bond.

[0007] To further optimize and reproducibly improve the quality of this bond, the powder coating can be designed with a profiled microtopography exhibiting an average roughness in the range of 20 to 40 µm. Simultaneously, the powder coating layer thickness can range from 60 to 100 µm. These specific parameters represent an ideal balance: the surface is rough enough for maximum mechanical adhesion, but not so coarse that excessive cleaning material is required. The defined layer thickness also ensures the robustness and durability of the adhesion-promoting structure.

[0008] To further improve adhesion, especially with demanding plaster systems or extreme weather conditions, an adhesion promoter layer, also known as a primer, can be applied to the powder coating. This layer improves the surface's wettability and can create an additional chemical bond with the plaster, maximizing the overall adhesion of the system. If required, the primer can also be applied to the powder coating by the end customer.

[0009] In its finished form, the storage box can already be coated with a layer of plaster applied directly to the powder coating or the optional bonding agent layer. This design offers the advantage of a ready-to-use product that demonstrates the functionality of the bonding system and saves the end customer the work of plastering. The plaster layer itself can consist of a standard mineral or resin-modified plaster system, such as those used on building facades. An advantageous layer thickness is in the range of 3 to 5 mm, which ensures sufficient stability and an attractive appearance without placing excessive stress on the substrate.

[0010] Structurally, the support panel can be designed as a side or rear curtain wall. This construction as a suspended element separates the load-bearing function of the frame from the cladding function of the support panel. This simplifies manufacturing and enables a modular construction of the storage box.

[0011] For particularly easy assembly and disassembly, the mounting plate can be detachably attached to the frame. This can advantageously be achieved using hooks. A detachable attachment offers significant practical advantages, as the mounting plates can be replaced at a later date if necessary.

[0012] A particularly stable and easy-to-install version of this detachable fastening system features a frame with side walls, and the mounting plate is hung directly on these side walls, preferably at their upper edges, using its hooks. This type of suspension utilizes gravity for positioning, ensuring a secure yet simple fit for the plates. To further secure the mounting plates against unintentional dislodging, for example, due to wind or vandalism, both the mounting plate and the side walls can have corresponding screw holes. Connecting screws can be inserted through these holes to ensure a firm, yet removable, fix. The screws can either be plastered over or raised sections can be used to keep them accessible even after plastering.

[0013] In terms of functionality, the storage box can be equipped with a hinged lid that moves between a closed and an open position to allow convenient access to the interior. For increased ease of use, this hinged lid can be held in the open position by means of a damping cylinder, a hinge, or similar mechanism, preventing accidental slamming and facilitating handling.

[0014] As an alternative to the hinged version, the storage box can also have a permanently attached lid. This can be fitted with a surrounding box wall, allowing the lid to be used as a planter. This design offers an additional aesthetic function and integrates the box even more harmoniously into a garden or patio.

[0015] One preferred application for such a storage box could be the concealed and weatherproof storage of waste containers.

[0016] The invention described above will be explained in more detail below using an exemplary embodiment.

[0017] They show Fig. 1 a perspective view of an embodiment of the storage box with a fixed lid and a removed side curtain wall, Fig. 2 a perspective view of another embodiment of the storage box for two containers with open hinged lid and removed side curtain walls, Fig. 3 a schematic sectional view of a carrier plate with a powder coating, and Fig. 4 A schematic cross-sectional view of a carrier board with a powder coating, an adhesion promoter layer and a plaster layer.

[0018] Fig. Figure 1 shows a perspective view of a first embodiment of the storage box 100 according to the invention. The box is based on a stable frame 110, which is stiffened by a base 140 and stands on preferably adjustable feet 141 to ensure a distance from the ground or to compensate for unevenness in the ground. In this illustration, the frame 110 has fixed side walls 120 and a rear wall (not shown). Door hinges 150 are indicated on the front vertical struts of the frame 110, which allow for the optional attachment of a front door. The upper end of the storage box 100 is formed by a fixed lid 130. This lid 130 is provided with a surrounding box wall 131, which allows it to be used as a planter, thus providing an additional aesthetic and functional enhancement.

[0019] The essential feature of the external design is achieved by the support plates 200, which are designed as curtain walls. A side curtain wall 210, removed from the box to illustrate the assembly, is shown. This side curtain wall 210 is equipped with hooks 211 along its upper edge. These hooks 211 are shaped to fit precisely over the upper edge of the side wall 120 of the frame 110. This allows for quick and easy positioning of the curtain wall 210. For permanent and secure fixing, the side curtain wall 210 has screw holes 212 that align with corresponding threaded openings in the side wall 120. Connecting screws (not shown) can be inserted through these screw holes 212 to firmly connect the curtain wall 210 to the frame 110. A rear curtain wall 220 is attached to the back of the frame 110 in a similar manner.The outer surfaces of the curtain walls 210 and 220 are prepared to receive a layer of plaster, as shown in . Fig. 3 and Fig. 4 shown.

[0020] Fig. Figure 2 shows an alternative, multi-part embodiment of the storage box 100, which is suitable, for example, for housing two waste containers. It can be extended accordingly. The basic structure with a frame 110, a base 140, and feet 141 is comparable to the first embodiment. In contrast to Fig. In this embodiment, however, a movable hinged lid 132 is equipped with a hinged rear panel 110, allowing access to a waste container inside the storage box without removing it. A handle 133 facilitates easy opening. One or more damping cylinders 134 are arranged between the frame 110 and the hinged lid 132. These damping cylinders 134 not only assist in opening the lid but also hold it securely in the open position, significantly simplifying the filling or removal of the containers placed underneath. When the lid is pressed beyond a certain point, the damping cylinders 134 cease damping, and the storage box can be closed. In this illustration, the side curtain walls 210 and the rear curtain walls 220 are again shown detached from the frame 110 to demonstrate the modular design.Here too, the fastening is done via a hook-in and / or screw system on the side walls 120 and the rear walls 160 of the frame 110.

[0021] The Fig. 3 and Fig. Figure 4 shows the crucial layered structure of the carrier plates 200, which enables the permanent adhesion of a plaster layer.

[0022] Fig. Figure 3 shows a cross-section through a carrier plate 200 in its basic embodiment according to the invention. A powder coating 300 is applied to the surface of the actual carrier plate 200. This powder coating 300 is not smooth, but has a deliberately generated, profiled microtopography, which is shown schematically here as a wave-like structure. This rough, profiled surface is the key feature, as it forms an ideal basis for mechanical interlocking with a plaster.

[0023] Fig.Figure 4 illustrates the complete layer structure of a plastered substrate 200. A thin bonding agent layer 310 is optionally applied to the substrate 200 with the profiled powder coating 300. This layer improves wettability and can promote additional chemical bonding. The final plaster layer 320 is then applied to this prepared surface. As shown schematically, the plaster layer 320 penetrates the microtopographic recesses of the powder coating 300. This creates an intensive and extensive mechanical interlock between the plaster layer 320 and the substrate 200, ensuring a durable and weather-resistant bond that would not be achievable with conventional surfaces.

[0024] The described design of the carrier plate with a specially profiled powder coating as an adhesion base thus creates an object that fulfills the requirement formulated in the objective technical task of being able to provide a storage box with a plaster layer in a simple, reliable and durable way. REFERENCE MARK LIST 100 storage boxes 110 frames 120 side wall 130 lids 131 Box wall 132 hinged lids 133 Handle 134 damping cylinders 140 floor 141 feet 150 door hinges 160 back panel 200 carrier plate 210 side curtain wall 211 hooks 212 screw holes 220 rear curtain wall 300 powder coating 310 Liability mediator layer 320 plaster layer

Claims

[1] Storage box (100) comprising a frame (110) and at least one support plate (200) attached to the frame (110), characterized by , that the carrier plate (200) has on the outside a powder coating (300) with a profiled microtopography, which is designed to provide adhesion for a plaster layer (320). [2] Storage box according to claim 1, characterized by that the powder coating (300) has a medium roughness R a from 20 µm to 40 µm and has a layer thickness of 60 µm to 100 µm. [3] Storage box according to claim 1 or 2, characterized by , that an adhesion promoter layer (310) is applied to the powder coating (300). [4] Storage box according to any of the preceding claims, characterized by , that a plaster layer (320) is applied to the powder coating (300) or to the adhesion promoter layer (310). [5] Storage box according to claim 4, characterized by, that the plaster layer (320) consists of a mineral or synthetic resin-modified plaster system and has a layer thickness of 3 mm to 5 mm. [6] Storage box according to any of the preceding claims, characterized by , that the support plate (200) is designed as a side or rear curtain wall (210, 220). [7] Storage box according to any of the preceding claims, characterized by , that the carrier plate (200) is detachably attached to the frame (110), in particular by means of hooks (211). [8] Storage box according to claim 7, characterized by , that the frame (110) has side walls (120) and the support plate (200) is suspended by the hooks (211) on the side walls (120), in particular on their upper edges. [9] Storage box according to claim 8, characterized by , that the support plate (200) and the side walls (120) have corresponding screw holes (212) for passing connecting screws. [10] Storage box according to any of the preceding claims, characterized by , that it has a hinged lid (132) that can be moved between a closed and an open position. [11] Storage box according to claim 10, characterized by , that the hinged lid (132) is held in the open position by means of a damping cylinder (134). [12] Storage box according to any one of claims 1 to 9, characterized by , that it has a fixed lid (130) which is provided with a surrounding box wall (131) to form a planting container. [13] Storage box according to any of the preceding claims, characterized by , that the storage box (100) is designed to accommodate waste containers.