Magnetic fastening systems and method of using the same

Abstract

A surface mounting system is provided comprising a surface mountable assembly and a releasable fastening system. The fastening system includes a first fastening member secured to a rear face of the surface mountable assembly and comprising a first magnetic element, and a second fastening member configured to engage a mounting surface and comprising a second magnetic element magnetically attracted to the first magnetic element. The first and second fastening members are releasably mateable to one another, and the second fastening member includes an adhesive layer for attachment to the mounting surface. At least one friction enhancing layer is disposed at least partially at an interface between the first fastening member and the second fastening member.

Description

[0001] MAGNETIC FASTENING SYSTEMS AND METHOD OF USING THE SAME TECHNOLOGICAL FIELD OF THE DISCLOSED SUBJECT MATTER

[0002] The disclosed subject matter generally relates to fastening systems and in particular to releasable and / or reattachable fastening systems with magnetic elements.

[0003] BACKGROUND ART

[0004] The following references may be considered to be relevant as background art to the presently disclosed subject matter.

[0005] - US2011 / 011994

[0006] - US2002 / 009568

[0007] - US2017 / 089377

[0008] - US11,641,957

[0009] It will be appreciated that acknowledgement of the above reference is not to be inferred as meaning that these are in any way relevant to the patentability of the presently disclosed subject matter.

[0010] GENERAL DESCRIPTION

[0011] One aspect of the disclosed subject matter is directed to a surface mounting system comprising:

[0012] a surface mountable assembly having a rear face;

[0013] a first fastening member, having a front face and a rear face, the first fastening member including a first magnetic element, said rear face of the first fastening member being secured to a rear side of the surface mountable assembly;

[0014] a second fastening member having a front face configured to engage a front face the first fastening member and a rear face configured to engage the mounting surface, the secondfastening member including a second magnetic element, magnetically attracted to the first magnetic element;

[0015] - the first fastening member is releasably mateable with the second fastening member to define a releasable fastening system and the rear face of the second fastening member comprises a fastener (e.g. layer of adhesive) for engaging said mounting surface; wherein, the releasable fastening system further includes at least one friction enhancing layer, configured to be disposed at least partially between the first fastening member and the second fastening member.

[0016] In accordance with an embodiment of the disclosed subject matter, the friction-enhancing layer comprises a material configured to be applied to a surface of at least one of said first fastening member and said second fastening member, wherein said layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces in contact; and

[0017] wherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said first magnetic element and said second magnetic element.

[0018] Another aspect of the disclosed subject matter is directed to a surface mountable releasable fastening system comprising:

[0019] a first fastening member, having a front face and a rear face, the first fastening member including a first magnetic element;

[0020] a second fastening member having a front face configured to engage the front face of said first fastening member and a rear face configured to engage the surface, the second fastening member including a second magnetic element, magnetically attracted to the first magnetic element;

[0021] - the first fastening member is releasably mateable with the second fastening member to define a releasable fastening system and the rear face of the second fastening member comprises a layer of adhesive for engaging the surface;

[0022] wherein, the releasable fastening system further includes at least one friction enhancing layer, configured to be disposed at least between the first fastening member and the second fastening member, the friction-enhancing layer comprising a material configured to be applied to a front face surface of at least one of said first fastening member and said second fastening member, wherein said layer is characterized by high dynamic shear strength and effective resistance toshear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces in contact; and

[0023] wherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said first magnetic element and said second magnetic element.

[0024] Yet another aspect of the disclosed subject matter is directed to a releasably mateable fastening system comprising:

[0025] a fastening member, having a front face and a rear face, the fastening member comprising at least one layer comprising at least one magnetic element configured to magnetically engage a magnetically attracting surface;

[0026] wherein, the releasable fastening system further comprises at least one friction enhancing layer disposed over at least the front face thereof, wherein said layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the fastening member and the magnetically attracting surface when in contact; and

[0027] wherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said first magnetic element and said magnetically attracting surface.

[0028] An aspect of the disclosed subject matter is further directed to a method of mounting an assembly to a surface, comprising:

[0029] - providing a first fastening member coupled to the assembly and comprising a first magnetic element;

[0030] - providing a second fastening member coupled to the surface and comprising a second magnetic element magnetically attracted to the first magnetic element; and

[0031] - releasably mating the first fastening member with the second fastening member, wherein at least one friction enhancing layer is disposed between the first and second fastening members to increase a shear resistance of the magnetic interface.

[0032] In accordance with an embodiment of the disclosed subject matter the friction enhancing layer increases an effective shear strength relative to a magnetic interface lacking the layer.Any one or more of the following features, designs, and configurations may be applied to a system and / or a method according to the aspects of the present disclosure, separately or in any combination thereof, unless expressly stated otherwise or technically incompatible:

[0033] The friction enhancing layer is disposed on a front face of the first fastening member, on a front face of the second fastening member, or on both.

[0034] The friction enhancing layer partially or fully covers a surface of the magnetic element and may be applied in a continuous or patterned manner.

[0035] The friction enhancing layer is configured to increase a coefficient of friction at the interface between magnetically mateable components.

[0036] The friction enhancing layer comprises a polymeric, elastomeric, rubber-based, silicone- based, foam-based, textile-based, composite, or microstructured material, or combinations thereof.

[0037] The friction enhancing layer further provides a cushioning, buffering, shock-absorbing, and / or vibration-damping function.

[0038] The friction enhancing layer has a thickness selected relative to magnetic coupling requirements, including thicknesses of about 1-50 microns, optionally about 3-25 microns, and optionally about 3-8 microns.

[0039] At least one surface underlying the friction enhancing layer is surface-treated to improve bonding, including corona treatment, plasma treatment, chemical priming, or combinations thereof.

[0040] At least one magnetic element comprises a permanent magnet, and at least one opposing element comprises a magnetically receptive material containing ferromagnetic components.

[0041] The magnetically receptive material comprises ferrous elements embedded within a polymeric or elastomeric matrix, including PVC, polyurethane, rubber, silicone, or thermoplastic elastomers.

[0042] The fastening system further comprises a buffer or cushioning layer disposed between a magnetic element and an adhesive layer, the buffer layer being configured to conform to uneven or irregular mounting surfaces.

[0043] The buffer layer comprises foam, gel, elastomeric, fibrous, cellular, or composite materials, and may include air pockets, grooves, honeycomb structures, or variable thickness regions.

[0044] The fastening system comprises an adhesive layer selected from permanent, removable, or repositionable adhesives.The adhesive layer comprises a pressure-sensitive adhesive, including acrylic-based, rubber-based, silicone-based, microsuction-based, or gecko-inspired adhesive materials. The system is configured such that a dynamic shear strength between the adhesive and a mounting surface exceeds a dynamic shear strength of the releasably mateable magnetic interface, thereby promoting separation at the magnetic interface under excessive shear loading.

[0045] The fastening system is configured for releasable mounting of wall decor, frames, panels, tiles, fixtures, or other surface-mounted assemblies, in vertical, horizontal, or inclined orientations.

[0046] BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to better understand the subject matter that is disclosed herein and to exemplify how it may be carried out in practice, non-limiting examples of embodiments will now be described, with reference to the accompanying drawings, where like elements are labeled similarly, and in which:

[0048] FIG. 1 is a schematic illustration of a surface mounting system in accordance with an embodiment of the disclosed subject matter;

[0049] FIG. 2 is a schematic illustration of a surface mounting system of Fig. 1 further comprising one example of cushioning layer;

[0050] FIG. 3 is a schematic illustration of a surface mounting system of Fig. 1 further comprising another example of cushioning layer;

[0051] FIG. 4 is a schematic illustration of a surface mounting system in accordance with another embodiment of the disclosed subject matter;

[0052] FIG. 5 is a schematic illustration of a surface mounting system in accordance with another embodiment of the disclosed subject matter;

[0053] FIG. 6 is a schematic illustration of a releasably mateable fastening system in accordance with an embodiment of the disclosed subject matter;FIG. 7 is a schematic illustration of part of a releasably mateable fastening system in accordance with another embodiment of the disclosed subject matter;

[0054] FIG. 8 is schematic illustration of the system in accordance with yet an example of the disclosed subject matter, in accordance with yet an example of the disclosed subject matter;

[0055] FIG. 9a is a graph illustrating an example of pull force variation as a function of increasing interposed layer thickness between a magnetic element and a magnetically receptive surface; and

[0056] FIG. 9b is a graph illustrating an example of surface magnetic field strength variation as a function of increasing interposed layer thickness between a magnetic element and a magnetically receptive surface.

[0057] All drawings are schematic and may not be drawn to scale. Parts assigned a reference number in one figure may be assumed to represent the same parts in other figures, even if the reference number is omitted for brevity, unless they are specifically labeled with a different reference number.

[0058] DETAILED DESCRIPTION OF THE DISCLOSED SUBJECT MATTER

[0059] The following description provides exemplary methods, processes, systems, techniques, instruction sequences and applications. It is not intended to limit the scope of the present disclosure but serves to illustrate exemplary embodiments. Specific details are included to aid in the understanding of various embodiments. However, it will be apparent to those skilled in the art that the disclosed embodiments may be practiced with or without these details. Not all possible examples of methods, processes, protocols, or structures etc. are shown in detail. Furthermore, the operations described are not restricted to any particular order or sequence unless explicitly stated.

[0060] The features and advantages of the disclosed subject matter are described and illustrated by reference to exemplary embodiments, which are to be read in conjunction with the accompanying drawings. The drawings are considered an integral part of this written description. However, the disclosure is not limited to these exemplary embodiments, as they demonstrate somepotential non-limiting combinations of features. These features may exist independently or in various combinations with other features.

[0061] In the description of the embodiments, any references to direction or orientation (e.g., "rear," "front," "horizontal," "vertical", “back”) are provided for convenience and ease of understanding and are not intended to limit the scope of the disclosed subject matter . Such terms should be interpreted in the context of the particular description or the corresponding figures being discussed. These directional terms are meant solely for illustrative purposes and do not imply that the disclosed subject matter must be constructed or operated in any specific orientation.

[0062] Additionally, terms like "attached," "affixed," "connected," "coupled", “bonded”, “mated”, “attached” and "interconnected" refer to relationships where structures are joined either directly or indirectly, through intermediate structures, whether the attachment is movable or rigid, unless specifically stated otherwise.

[0063] As used herein:

[0064] (i) “Dynamic Shear Strength” refers to the maximum shear force (or shear stress) sustained at an interface under lateral loading prior to onset of slippage and / or separation, under a specified loading mode. Unless otherwise stated, Dynamic Shear Strength is evaluated for the magnetic interface under lateral (shear) loading while the components are in contact.

[0065] (ii) “Effective Shear Strength” refers to the shear resistance of the releasably mateable fastening system when the friction enhancing layer is present, including the contribution of magnetic normal force and interfacial friction provided by the friction enhancing layer, and may be expressed as a maximum shear force (or shear stress) prior to slippage and / or separation.

[0066] (iii) “Friction enhancing layer” refers to a layer that increases shear resistance at the interface of the magnetically mateable components.

[0067] The terms “fastening member” and “fastening element” may be used interchangeably herein; however, for clarity in this disclosure and the claims, “fastening member” is used.

[0068] Referring first to Fig. 1, a surface mounting system 100 is illustrated in accordance with one example of the disclosed subject matter. The surface mounting system 100 generally comprises a surface mountable assembly 102, which in this example is a picture frame, having a rear face 104, which can be for example a picture frame backing layer. The surface mountable assembly 102 can for example be a frame, a flooring tile, a wall tile, a ceiling tile or any other assembly for engaging a surface in any direction, and more specifically for removably engaging a surface.As illustrated in Fig. 1, the surface mounting system 100 comprises a first fastening member 120, and a second fastening member 121. The first fastening member and the second fastening member are releasable mateable with each other through a magnetic attachment as will be discussed herein. The first fastening member 120 is attachable to a mountable assembly 102, in this example a picture frame, and comprises a first magnetic element 122, while the second fastening assembly 121 is mountable on a wall surface 101, and comprises a second magnetic element 110.

[0069] The first fastening assembly 120 has a front face 124 and a rear face 126, said rear face 126 is shown as being securely attached to a rear side 104 of the frame 102. In accordance with this example, the fastening assembly 120 comprises an adhesive layer 125 disposed at its rear face between the magnetic element 122 and the rear side 104 of the frame. The adhesive layer 125 is configured to secure the assembly 120 to the frame 102. The adhesive layer 125 in this example is a permanent adhesive, however other types of securing or bonding mechanisms are envisioned, including removable adhesive, thermal bonding, mechanical connectors (e.g. hook and loop fasteners), and other mechanisms. The fastening member 120 further comprises a first magnetic element 122 secured to the assembly 102 through the adhesive layer 125 disposed on its rear side.

[0070] The second fastening assembly 121, has a front face 112 configured to engage a front face 124 the first fastening member 120 and a rear face 111 configured to engage the wall surface 101. The second fastening member is mounted to the wall using repositionable adhesive layer 115, disposed over a rear face 111 of the second magnetic element 110.

[0071] The system in accordance with the disclosed subject matter can in one example employ a removable and repositionable adhesive layer 115, allowing it to be securely attached to various surfaces. The adhesive can be peeled off and repositioned multiple times without losing its adhesive properties or damaging the underlying surface. In addition to removable and repositionable adhesives, the system may utilize other materials and technologies designed for temporary and reusable attachment, such as pressure-sensitive adhesives (PSAs), permanent adhesives, gecko-inspired adhesive materials, microsuction adhesives, hook-and-loop fasteners, etc. These alternatives offer similar flexibility in attachment and when desired repositioning, allowing the disclosed subject matter to be adaptable to a variety of surfaces and applications.It will be appreciated that the magnetic element 110 as shown in Fig. 1 can be a magnetically receptive layer configured to interact with a corresponding magnetic element 122, enabling a releasable magnetic mating between the two. The magnetically receptive layer 110 in such an example is composed of a base material into which ferrous elements are embedded, allowing it to be attracted to a magnetic element 122. The magnetically receptive layer 110 in this example is constructed from a substrate material into which ferrous elements (such as iron, steel, or other ferromagnetic materials) are integrated. These ferrous elements can take various forms, such as powder, granules, fibers, or wire mesh, which are distributed throughout the base layer to ensure magnetic attraction across the surface. Alternatively, it can be a rigid ferrous element entirely.

[0072] The substrate of the magnetically receptive layer 110 can be made from a variety of flexible or rigid materials, depending on the intended application. Suitable materials for the base layer include, but are not limited to: polyvinyl chloride (PVC); rubber (natural or synthetic); polymer such as polyurethane (PU); silicone; thermoplastic elastomers (TPE).

[0073] The ferrous elements can be securely embedded within these base materials during manufacturing, ensuring that the magnetically receptive layer retains its magnetic properties over time without degradation.

[0074] The opposite or corresponding magnetic element 122 can be a magnetic body designed to magnetically mate with the magnetically receptive layer 110. This magnetic element may be made from various magnetic materials, such as permanent magnets or electromagnets. The choice of material depends on the strength of magnetic attraction required and the specific application.

[0075] The first and second magnetic elements 122, 110, respectively, are each shaped and configured to align with the surface of the corresponding element, ensuring an optimal magnetic bond. The strength of the magnetic attraction can be adjusted by selecting the appropriate type and configuration of the magnet, as well as the thickness, dimensions and composition of the ferrous elements in the receptive layer.

[0076] In one example, the surface mountable assembly 102 forms part of the first magnetic element 122, for example by being integral part thereof or it can be a print applied directly thereon.In accordance with the disclosed subject matter, the releasable fastening system 100 further includes a friction enhancing layer 130. In the illustrated example, the friction enhancing layer 130 is applied on the front face 113 of the magnetic element 110, opposite the adhesive layer 115. In accordance with the disclosed subject matter, the friction-enhancing layer 130 is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces in contact. Effective Shear Strength established by the layer 130 is greater than the Dynamic Shear Strength between said first magnetic element 122 and said second magnetic element 110, when the layer 130 is not present.

[0077] In some embodiments, the adhesive layer used to couple the second fastening member to the mounting surface is selected such that the dynamic shear strength between the adhesive and the mounting surface exceeds the dynamic shear strength of the releasably mateable magnetic interface (including any friction enhancing layer). This configuration promotes separation at the releasably mateable interface under excessive shear loading, rather than failure at the adhesive-to-surface bond, thereby reducing risk of damage to the mounting surface.

[0078] It will be appreciated that the friction enhancing layer 130, can be disposed so as to cover the entire surface of the front face of the magnetic element or it can partially cover the same. As will be discussed with reference to Fig. 4, the friction enhancing layer 130’can be provided also on the first fastening member 120, either with or without the presence of the friction enhancing layer on the second fastening member 121. It should be appreciated that the friction enhancing layer can be disposed in a pattern, covering only parts of the magnetic element. The friction enhancing layer can be permanently bonded to the magnetic element, adhered thereto, connected thereto mechanically etc.

[0079] The friction enhancing layer is configured to increase the coefficient of friction of the surface it is applied to improve grip, slip resistance, or tactile feedback. The surface 113 of the magnetic element 110 can be treated to enhance surface energy and / or absorption properties. The surface can also be treated with a bonding agent or comprise an intermediate layer to improve the bonding property between the friction enhancing layer and the surface of the magnetic element. In one example, the magnetic element is a magnetically receptive PVC layer comprising ferrous elements therein. In accordance with this example, surface of the magnetically receptive layer can be treated to undergo corona treatment such that the friction enhancing layer, in this example a silicone layer, when applied thereover, is securely bonded thereto.In accordance with the disclosed subject matter, silicone provides high friction to prevent slippage or unintended relative movement between the first and second fastening members 120 and 121 and can further serve as a buffer to absorb shocks, dissipate forces and reduce vibrations, thereby reducing impact on other layers and surfaces, e.g. the wall.

[0080] While in this example silicone layer has been described, it will be appreciated that other materials can also constitute the friction enhancing layer. Such material can be polyurethane, Neoprene, EVA (Ethylene Vinyl Acetate), Rubber, PVC (Polyvinyl Chloride), TPU (Thermoplastic Polyurethane), SBR (Styrene-Butadiene Rubber), Microfiber, Cork, EPDM Rubber (Ethylene Propylene Diene Monomer), Viton (Fluoroelastomer), TPE (Thermoplastic Elastomers), PTFE (Polytetrafluoroethylene, e.g., Teflon), Nitrile Rubber (NBR).

[0081] The general thickness of the friction enhancing layer 130 is relative the thickness and / or strength of the second magnetic layer 110 and can be also configured as relative the thickness and / or strength of the first magnetic layer 122. In some embodiments, the friction enhancing layer has a thickness of about 1 to about 50 microns. In some embodiments, the thickness is about 3 to about 25 microns. In some embodiments, the thickness is about 3 to about 8 microns. The thickness may be selected relative to the magnetic coupling required between the magnetic elements such that increased interfacial friction does not materially reduce magnetic holding performance, while providing sufficient shear resistance for a target payload and safety factor and such that increasing friction does not materially reduce magnetic holding performance beyond a selected threshold. The increase on the COF serves to reduce the overall area of magnetic element needed.

[0082] It should be appreciated that the friction enhancing layer in accordance with an embodiment of the disclosed subject matter is characterized by: (i) a high dynamic shear strength to enhance friction and resist sliding between the surfaces of the first and second fastening members 120 and 121, respectively, and (ii) a cushioning function, wherein the material absorbs and dissipates impact forces, providing buffering, thereby reducing mechanical shocks and vibrations transmitted between the surfaces while maintaining increased shear resistance. It will be appreciate that the system is configured such that the Dynamic Shear Strength established by the adhesive layer 115 against a mounting surface 101 is greater than the Dynamic Shear Strengthestablished by said releasable fastening system including the first and second fastening members 120 and 121.

[0083] With reference to Fig.2, another example of the surface mounting system in accordance with the disclosed subject matter is discussed. In this example, the second fastening member 121 further comprises a buffer layer 140. The buffer layer is configured to provide cushioning and adaptive flexibility. This layer is configured to ensure that the system can conform to surfaces that may be uneven, irregular, or rough, while simultaneously offering impact absorption and load distribution.

[0084] The buffer layer can be composed from a material or combination of materials that possess both compressive and elastic properties, allowing it to deform under pressure and in some examples to subsequently return to its original shape. This characteristic ensures that the buffer layer can absorb shock and distribute loads evenly across the surface, preventing localized stress and improving the overall durability of the system.

[0085] The buffer layer acts as a shock-absorbing medium, minimizing the transmission of forces through the system. This is particularly important when the system is placed on surfaces where impacts or vibrations are present, such as industrial settings or outdoor environments. The cushioning effect reduces wear and tear on both the system and the surface, enhancing the longevity of the product.

[0086] The buffer layer is further configured to conform to surfaces that are not perfectly flat or smooth. This is achieved through the layer’s inherent flexibility, which allows it to mold itself around irregularities such as ridges, bumps, or depressions in the underlying surface. This adaptability ensures that the system remains securely in place, improving both stability and performance.

[0087] The buffer layer can be made from a variety of materials, depending on the specific application and environment. Suitable materials include: natural and synthetic polymer, cellulose, cardboard, cork, textile (woven or non-woven), felt, silicone, EVA, LDPE, PE, NBR, Neoprene, PP foam, EPS, XPS, TPE, PU, Gel -based materials, composite materials etc. The buffer layer 140 in this example has a uniform thickness. It will be however appreciated that the layer 140 can feature a variable thickness to enhance its performance in specific areas. In some configurations,the layer may include air pockets, grooves, or other structural modifications (e.g. honeycomb structure) that enhance its ability to cushion and adapt to varying surface textures.

[0088] The material selection, its thickness for example 1.5-3 mm, and structural features of the buffer layer can be customized to meet the specific requirements of the system, ensuring optimal performance in a wide range of applications and environments.

[0089] Fig. 3 illustrates an example of the disclosed subject matter where the buffer layer is a foam layer 150.

[0090] Fig. 4, as partially discussed hereinabove, comprises a further friction enhancing layer 130’ on the first fastening member. This layer 130’ disposed over the first magnetic element can be in addition to the layer 130 on the second fastening member as discussed with reference to Fig. 1 or may be part of a system in which the second fastening member is devoid the layer 130. As shown in Fig. 4, the second fastening member further comprises a cushioning layer designated at 130”. This layer 130” can be a material similar to the material used for friction enhancement (e.g. layers 130 in Fig.l or 130’), for example it can be silicone. The second magnetic element 110 in such an example undergoes a surface treatment as discussed with reference to Fig. 1 on the rear face 111 thereof and in the case where layer 130 is present, on the front face thereof. As discussed hereinabove, the thickness of the layers is relative to each other. The following equation is an example of the relation between the force and the layers, where the total effective force (Fe) to resist shear due to the weight held by the system, e.g. that of a picture is:

[0091] Total Effective Force (Fe) to resist shear due to the picture's weight:

[0092] Fcmay be expressed as a function of Fm(d, tm) and Ff(ts)

[0093] where:

[0094] Fm(d, tm) = Magnetic force, dependent on pole distance d and magnet thickness tm.

[0095] Fi(t) = Frictional force, dependent on the thickness of the siliconized layer ts.

[0096] In general terms, the total shear resistance of the system may be understood as arising from a combination of magnetic normal force and interfacial friction, each of which may depend on parameters including pole spacing, magnet thickness and geometry, separation distance, and friction-enhancing layer thickness.In one example, a magnet and a receptive surface are coupled to create a hanging system for wall decor (including pictures, painting and other). Whereby one of the surfaces is applied to a wall or other vertical surface and the other surface is applied to the decor to be applied. A combination of the attributes and treatments mentioned below serve to attach the decor to the wall. The interaction between a magnet and a receptive surface involves a balance of magnetic and frictional forces. The magnetic force, is primarily dependent on the distance between the magnetic poles and the thickness of the magnet itself. Smaller distances between poles enhance the magnetic force but limit the depth of the magnetic field, necessitating close contact between the magnet and the receptive surface. The thickness of the magnet, directly correlates with the strength of the magnetic force; however, increasing the thickness also increases both weight and cost. The receptive or magnetic sursurface may include a siliconized layer, which increases friction and thereby the shear force required to detach the magnet. While a thicker siliconized layer initially enhances friction, it can also reduce the effective magnetic contact if it becomes too thick, thereby diminishing the overall magnetic hold. Therefore, the optimal design requires a careful balance to maximize the holding capabilities, ensuring that the sum of the forces effectively counteracts the shear force exerted by the weight of the wall decor, keeping it securely attached to the wall without causing slippage or detachment.

[0097] In one experiment performed, to evaluate and compare the magnetic pull force and magnetic field strength (Gauss) at varying distances between a magnet and a magnetically receptive material, and to assess the effect of intermediate barriers and surface treatments.

[0098] Two magnet configurations were tested:

[0099] ■ A first configuration with a 2mm pole distance.

[0100] ■ A second configuration with a 3mm pole distance.

[0101] A magnetically receptive surface containing ferrous elements was used.

[0102] Pieces of standard paper, each measuring 0.08mm in thickness, were incrementally placed between the magnet and the receptive material to simulate varying separation distances.

[0103] Surface Treatment:

[0104] • The receptive material was treated with a siliconized coating measuring 0.02mm (20 microns) in thickness, representing an additional barrier.

[0105] • The initial magnetic pull force and magnetic field strength were measured at a baseline configuration with no additional barriers.• Incremental distances were introduced by placing 1, 2, and 3, etc. pieces of paper between the magnet and the receptive material.

[0106] • Measurements of pull force and field strength were taken at each stage for both 2mm and 3mm pole distance configurations.

[0107] • Data were recorded to assess the impact of distance and barriers on magnetic performance. The measurements demonstrated the expected tradeoff that increasing separation distance reduces magnetic pull force and field strength, and that an interposed siliconized coating increases shear resistance by increasing interfacial friction. In preferred embodiments, the friction enhancing layer thickness is selected such that shear resistance is increased while maintaining sufficient magnetic attraction for a target payload and safety factor.

[0108] FIGS. 9a and 9b illustrate example measurements showing the relationship between separation distance and magnetic pull force and field strength. These figures demonstrate general trends associated with increased separation between magnetically interacting surfaces.

[0109] The experiments described herein are provided for illustrative purposes only and are not intended to limit the scope of the disclosed subject matter. Variations in materials, configurations, dimensions, and methods of application may be made without departing from the spirit and scope of the disclosed subject matter as described herein and defined by the claims.

[0110] The example shown in Fig. 5 illustrates a releasably mateable fastening system 200 comprising a fastening member 120, having a front face 210 attachable to a surface mountable assembly (in this example frame 102) and a rear face 220, the fastening member comprising a magnetic element 122 configured to magnetically engage a magnetically attracting surface 101’. In this example, the releasable fastening system 200 further comprises at least one friction enhancing layer 230 disposed over at least the rear face 220 thereof, wherein said layer 230 is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the fastening member 200 and the magnetically attracting surface 101’ when in contact. The Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said magnetic element 122 and said magnetically attracting surface 101’. The characteristics of the layer 230 are similar to those discussed with reference to layer 130, 130’ and / or 130”.Fig. 6 provides yet another example of the surface mounting fastening system generally designated 300. The fastening system 300 is configured to be mounted on a surface (not shown) and to magnetically engage a magnetic element 380. The fastening system comprises a magnetic element 310 having a front face 313 and an opposite rear face 311. The rear face 311 of the magnetic element is provided with a buffer / cushion layer 360 (similar is characteristic properties as discussed with reference to elements 130”, 140, or 150 in Figs. 4, 2, 3, respectively), the layer being permanently bonded thereto The system includes an adhesive layer 315 applied on the surface of the buffer layer 360 to enable secure attachment to various target surfaces, e.g. a wall surface. This adhesive layer 360 is covered with a removable release liner 370 that protects the adhesive 360 prior to application. The adhesive 360 can be of various types, depending on the specific requirements of the system, and can be permanent, removable or repositionable, providing flexibility in its application.

[0111] As discussed herein, the removable type of adhesive allows for clean removal without leaving residue on the surface. It is ideal for applications where the system may need to be removed or replaced periodically without damaging the underlying surface. The repositionable adhesive type is envisioned to allow the system to be attached, removed, and repositioned multiple times without significant loss of adhesion. It is particularly useful for aligning the system correctly on the surface or for applications where temporary mounting is required. The adhesive can be pressure sensitive adhesive. PSAs bond to surfaces when pressure is applied. PSAs are commonly used in removable adhesives due to their ease of application and removal. Variants include acrylic, rubber-based, or silicone-based PSAs. Gecko-Inspired adhesive materials can also be used. These synthetic materials mimic the adhesion properties of gecko feet, allowing for temporary and repositionable attachment to surfaces through van der Waals forces. They provide strong adhesion without the use of chemical adhesives and can be repositioned repeatedly. Microsuction adhesives is yet another alternative for the adhesive layer. This type of reusable adhesive technology uses microscopic air pockets to create suction between the material and the surface, allowing for removable and repositionable attachment without leaving a residue. Hook-and-Loop Fasteners (e.g., Velcro) provide a reusable and repositionable method of securing components, and can be used in connection with this and other examples discussed herein, mutatis mutandis.

[0112] As further shown in Fig. 6, the fastening system further comprises a friction enhancing layer 130. As schematically illustrated, this layer is configured to be disposed between the magnetic element 310 and the magnetic element 380. In accordance with one example, the friction enhancing layeris applied over the front face of the magnetic element 310 (as shown in Fig. 7 with reference to assembly 400). In accordance with another envisioned example, the friction enhancing layer 130 is provided over the back face 382 of the magnetic element 380. As discussed with reference to Figs. 1 - 5, the friction enhancing layer layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces 310 and 380 when in contact. It will be appreciated that the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between the first magnetic element 310 and the second magnetic element 380.

[0113] As discussed herein, the magnetic element can be a magnetically receptive layer or a magnet layer, interchangeably. The two layers are configured to releasably and magnetically interact and mate with each other. In the event where the magnetic layer 310 is a magnetically receptive layer, the magnetic element 380 is a magnet, and in the event that the magnetic layer 310 is a magnet, the magnetic element 380 is a magnetically receptive layer as discussed herein. The choice of materials depends on the strength of magnetic attraction required and the specific application.

[0114] While various aspects and embodiments are being disclosed herein, other aspects and embodiments, various additions, modifications, and substitutions may be made without departing from the spirit of the disclosed subject matter and are being contemplated. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting.

[0115] In particular, it will be clear to those skilled in the art that the presently disclosed subject matter may be embodied in other forms, structures, arrangements, proportions, sizes, and with other elements, materials, and components, without departing from the spirit or essential characteristics thereof. Additionally, numerous variations in the methods and processes described herein may be made within the scope of the present disclosure. One skilled in the art will further appreciate that the embodiments may be used with many modifications of structure, arrangement, proportions, sizes, materials, and components, depending on specific environments and operational requirements, without departing from the principles described herein.

[0116] The presently disclosed embodiments are therefore to be considered illustrative and not restrictive. The claims should be construed broadly to include other variants and embodiments ofthe disclosure, which may be made by those skilled in the art without departing from the scope and range of equivalents.

Claims

CLAIMSWhat is claimed is:

1. A surface mounting system comprising:a surface mountable assembly having a rear face;a first fastening member, having a front face and a rear face, the first fastening member including a first magnetic element, said rear face of the first fastening member being secured to a rear side of the surface mountable assembly;a second fastening member having a front face configured to engage a front face the first fastening member and a rear face configured to engage the mounting surface, the second fastening member including a second magnetic element, magnetically attracted to the first magnetic element;- the first fastening member is releasably mateable with the second fastening member to define a releasable fastening system and the rear face of the second fastening member comprises a layer of adhesive for engaging said mounting surface;wherein, the releasable fastening system further includes at least one friction enhancing layer, configured to be disposed at least partially between the first fastening member and the second fastening member.

2. A system in accordance with Claim 1, wherein the friction-enhancing layer comprises a material configured to be applied to a surface of at least one of said first fastening member and said second fastening member, wherein said layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces in contact; andwherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said first magnetic element and said second magnetic element.

3. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is configured to increase the coefficient of friction of the surface it is applied to improve grip, slip resistance, or tactile feedback.

4. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is disposed at least on the front face of the second fastening member.

5. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is disposed at least on the front face of the first fastening member.

6. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is applied over a substrate with a treated surface to enhance surface energy and / or absorption properties.

7. A surface mounting system in accordance with Claim 1, wherein the treated surface has undergone a corona treatment.

8. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer further functions as a cushioning layer.

9. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer absorbs and dissipates forces, reducing the impact on other layers and / or surfaces.

10. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer can withstand mechanical shocks and vibrations, protecting the layers and surfaces from damage and wear.

11. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is characterized by:(i) a high dynamic shear strength to enhance friction and resist sliding between the surfaces, and(ii) a cushioning function, wherein the material absorbs and dissipates impact forces, providing buffering, thereby reducing mechanical shocks and vibrations transmitted between the surfaces while maintaining increased shear resistance.

12. A surface mounting system in accordance with Claim 1, wherein at least one of the first magnetic element and the second magnetic element, comprises a magnet.

13. A surface mounting system in accordance with Claim 1, wherein one of the first magnetic element and the second magnetic element comprises a ferromagnetic material.

14. A surface mounting system in accordance with Claim 13, wherein the ferromagnetic material is contained in a material selected from at least one of PVC, elastomers such as rubber, silicone, and / or one or more other polymeric, plastic or natural based materials or composites.

15. A surface mounting system in accordance with Claim 1 , wherein the adhesive for engaging the surface is a removable and / or repositionable material.

16. A surface mounting system in accordance with Claim 1, wherein the system is configured such that the Dynamic Shear Strength established by the adhesive against a mountingsurface is greater than the Dynamic Shear Strength established by said releasable fastening system.

17. A surface mounting system in accordance with Claim 1, wherein a thickness of the friction-enhancing layer is selected relative to a thickness and / or magnetic strength of at least one of the magnetic elements.

18. A surface mountable releasable fastening system comprising:a first fastening member, having a front face and a rear face, the first fastening member including a first magnetic element;a second fastening member having a front face configured to engage the front face of said first fastening member and a rear face configured to engage the surface, the second fastening member including a second magnetic element, magnetically attracted to the first magnetic element;- the first fastening member is releasably mateable with the second fastening member to define a releasable fastening system and the rear face of the second fastening member comprises a layer of adhesive for engaging the surface;wherein, the releasable fastening system further includes at least one friction enhancing layer, configured to be disposed at least between the first fastening member and the second fastening member, the friction-enhancing layer comprising a material configured to be applied to a front face surface of at least one of said first fastening member and said second fastening member, wherein said layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the magnetic surfaces in contact; andwherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said first magnetic element and said second magnetic element.

19. A releasably mateable fastening system comprising:a fastening member, having a front face and a rear face, the fastening member comprising at least one layer comprising at least one magnetic element configured to magnetically engage a magnetically attracting surface;wherein, the releasable fastening system further comprises at least one friction enhancing layer disposed over at least the rear face thereof, wherein said layer is characterized by high dynamic shear strength and effective resistance to shear forces caused by static and dynamic loads, thereby increasing the Effective Shear Strength established by the interaction between the fastening member and the magnetically attracting surface when in contact; andwherein the Effective Shear Strength established thereby is greater than the Dynamic Shear Strength between said the at least one magnetic element and said magnetically attracting surface.

20. A surface mounting system in accordance with Claim 1, wherein the friction enhancing layer is discontinuous and arranged in a patterned configuration.

21. A surface mounting system in accordance with Claim 1, further comprising a buffer layer disposed between a magnetic element and an adhesive layer.

22. A method of mounting an assembly to a surface, comprising:- providing a first fastening member coupled to the assembly and comprising a first magnetic element;- providing a second fastening member coupled to the surface and comprising a second magnetic element magnetically attracted to the first magnetic element; and- releasably mating the first fastening member with the second fastening member,wherein at least one friction enhancing layer is disposed between the first and second fastening members to increase a shear resistance of the magnetic interface.

23. A method in accordance with Claim 22, wherein the friction enhancing layer increases an effective shear strength relative to a magnetic interface lacking the layer.

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