Magnetic mounting fixture

Abstract

To suppress slippage of a magnetic mount and to keep the force required for removing the magnetic mount from a wall surface relatively small. [Solution] A magnetic mounting device 10 includes a back plate 20 that is installed with its rear surface 20B aligned along a wall surface 90 and its front surface 20A facing away from the wall surface 90. The back plate 20 includes: an attraction generating section 21 that generates a magnetic attraction to an iron plate 90A (magnetic installation means) and adheres to the wall surface 90; a first extension section 22 that extends downward from the attraction generating section 21; a mounting plate base section 23 that is adjacent to the first extension section 22 from below and causes the mounting plate 11 to protrude forward; and an anti-slip material 10A made of a material that has a friction coefficient with respect to the wall surface 90 that is greater than any of the attraction generating section 21, the first extension section 22, and the mounting plate base section 23.

Description

[Technical field]

[0001] The present disclosure relates to a magnetic mounting device. [Background technology]

[0002] Conventionally, a wall surface equipped with a magnetic installation means that allows a magnet to be installed by magnetic force is publicly known. A magnetic tool that can be detachably installed on a wall surface equipped with a magnetic installation means is also publicly known. For example, Patent Document 1 discloses an idea of ​​installing a magnetic mounting device on a wall surface with a magnetic sheet attached to the surface facing the wall (referred to as the "rear surface" in this disclosure) so that items such as CDs and plastic bottles can be placed on the mounting device. Patent Document 1 also discloses a technical idea of ​​increasing the adhesive force of the magnetic sheet by increasing the contact area of ​​the magnetic sheet, and an idea of ​​a magnetic tool with a magnetic sheet attached to the entire rear surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3207754 Summary of the Invention [Problem to be solved by the invention]

[0004] The mounting tool may be subjected to an additional load in addition to the weight of the object placed on the mounting plate. For example, a mounting tool may be used with a push bottle placed on the mounting plate. In this case, the mounting tool may be subjected to an additional load, which is the pressing force exerted by a user of the push bottle when pushing down the nozzle of the push bottle to take out the contents. The mounting tool may also be used in an environment where there are small animals, such as cats or small birds. In this case, the mounting tool may be subjected to an additional load, which is the downward impact force exerted when the small animal uses the mounting plate as a foothold (specifically, the downward impact force exerted when the small animal jumps onto and / or jumps off the mounting plate).

[0005] For a mounting device that is detachably installed on a wall, there is a need to prevent the mounting device from sliding down even when an additional load is applied in addition to the weight of the object to be mounted. Here, in the invention of a magnetic mounting device disclosed in Patent Document 1, when trying to prevent the mounting device from sliding down, a method is adopted in which a magnetic sheet is attached to the entire rear surface of the mounting device to increase the adhesive force of the magnetic sheet. This method has a problem in that a large force corresponding to the adhesive force is required to remove the magnetic mounting device from the wall.

[0006] The present disclosure provides a magnetic mounting device that is removably mounted on a wall surface equipped with a magnetic mounting means, which makes it possible to suppress the magnetic mounting device from slipping down while keeping the force required to remove the magnetic mounting device from the wall surface relatively small. [Means for solving the problem]

[0007] According to one aspect of the present disclosure, there is provided a magnetic mounting device that is detachably mounted on a wall surface having a magnetic installation means that allows a magnet to be installed by magnetic force. The magnetic mounting device includes a back plate that is installed in an arrangement state with its rear surface aligned with the wall surface and its front surface facing away from the wall surface. The back plate includes an attraction generating portion that generates an attractive magnetic force with respect to the magnetic installation means and adheres to the wall surface. The back plate also includes a first extension portion that extends downward from the attraction generating portion. The back plate also includes a mounting plate base portion that is adjacent to the first extension portion from below and causes the mounting plate to protrude forward. The back plate also includes an anti-slip material that is made of a material that has a friction coefficient with respect to the wall surface that is greater than any of the attraction generating portion, the first extension portion, and the mounting plate base portion.

[0008] The mounting device installed on the wall surface is subject to an action of sliding down along the wall surface due to its own weight and the load received by the mounting plate. Here, according to the above aspect, the slip-resistant material can suppress the magnetic mounting device from sliding down along the wall surface. Also, according to the above aspect, the rear surface of the magnetic mounting device is along the wall surface, and the mounting plate base is also spaced downward from the gravitational force generating unit via the first extension. Therefore, when the back plate of the magnetic mounting device installed on the wall surface is pulled off from the mounting plate base side, the back plate functions as a second type of lever with the upper edge of the back plate as a fulcrum, and the gravitational force generating unit is pulled off from the wall surface. Therefore, according to the above aspect, the force required to remove the magnetic mounting device from the wall surface can be kept relatively small while suppressing the magnetic mounting device from sliding down.

[0009] According to another aspect, the anti-slip material covers the attraction force generating portion from the rear surface side of the back panel.

[0010] It is known that an approximate empirical law of friction holds that "the magnitude of frictional force is directly proportional to the magnitude of the force pressing an object against a contact surface" (Amontons first law). This empirical law holds in various cases, with the exception of some cases such as adhesive tape attached to a contact surface. Here, according to the above aspect, in a magnetic mount that can be attached and detached to a wall surface, the anti-slip material receives a force from the attraction generating unit in a direction that presses it against the wall surface. Therefore, according to the above aspect, the attraction generating unit can increase the magnitude of the frictional force generated between the anti-slip material and the wall surface, and the magnetic mount can be further prevented from slipping down.

[0011] According to another aspect, the lower edge of the back plate is formed by a second extending portion that extends downward from the mounting plate base and abuts against the wall surface in the installed state.

[0012] In the configuration of the present disclosure described above, the load received by the mounting plate generates an action that tries to rotate a first type of lever with the mounting plate and back plate as lever rods and the mounting plate base as a fulcrum. The direction of rotation of the lever in this action is a direction that moves the gravity generating unit so as to be torn off from the wall surface. Here, according to the above aspect, the rotation of the first type of lever with the mounting plate and back plate as lever rods and the mounting plate base as a fulcrum is suppressed by using the second extension as a stopper, thereby reducing the risk that the gravity generating unit will be torn off from the wall surface due to the load received by the mounting plate.

[0013] According to another aspect, the attraction force generating portion includes a magnet assembly having a plurality of permanent magnets aligned along a rear surface thereof.

[0014] As a method for generating magnetic attractive force, there are known a method of supplying electric power to an electromagnet and a method of using a permanent magnet. Here, according to the above aspect, by using a permanent magnet as the attractive force generating unit, it is possible to eliminate the need to supply electric power to the attractive force generating unit.

[0015] In the production of permanent magnets, it is necessary to place the magnetic material in a magnetic field with a higher magnetic flux density than the magnetic flux density that the permanent magnet is desired to have. This means that in order to produce a large permanent magnet, a large-scale magnetic field generating device that generates a magnetic field with a high magnetic flux density over a wide area is required. Here, according to the above aspect, it is possible to provide a magnetic mounting device that can be produced without using a large-scale magnetic field generating device by reducing the size of the permanent magnet used in the attraction generating unit of the magnetic mounting device.

[0016] According to another aspect, a relationship equivalent to the following formula 1 is established among F1, L1, F2, and A, which will be described later.

[0017]

number

[0018] Here, the magnitude of the attractive force in the installed state is represented as F1. The distance in the up-down direction from the lower edge of the second extension to the center of the attractive force is represented as L1. The maximum load capacity of the support plate is represented as F2. The distance in the front-back direction from the representative point of the resultant force of the downward forces acting on the support plate to the wall surface when the support plate is installed and a load equal to F2 is applied thereto is represented as A.

[0019] In addition, in this disclosure, "*" is an operator that represents the product of scalar quantities. Since "load (i.e., the magnitude of gravity)" and "magnitude of gravitational force" are both scalar quantities, the symbol "*" is used as an operator to distinguish it from "·", which represents the scalar product of vector quantities, and "×", which represents the vector product of vector quantities.

[0020] According to the above aspect, the attractive force generating section is prevented from being pulled off from the wall surface simply by the condition that a load equal to the maximum load capacity of the mounting plate is applied to the mounting plate.

[0021] According to another aspect, the mounting plate has a detachable portion that allows the magnetic mounting device to be removed from the wall surface by lifting it up. If the distance from the representative point of the force lifting the detachable portion to the wall surface in the installed state is represented as B, and the distance from the center of attraction of the gravitational force to the upper edge of the back plate in the up-down direction is represented as L3, then B is longer than A, and L1 is longer than L3.

[0022] According to the above aspect, by lifting the removal portion of the mounting plate and rotating the magnetic mounting device around the upper edge of the back plate, the magnetic mounting device can be removed from the wall surface with a force smaller than the maximum load capacity of the mounting plate. Effect of the Invention

[0023] According to the present disclosure, in a magnetic mounting device that is removably mounted on a wall surface equipped with a magnetic mounting means, it is possible to prevent the magnetic mounting device from slipping down while keeping the force required to remove the magnetic mounting device from the wall surface relatively small. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 is a perspective view showing a state in which a magnetic mounting device 10 according to an embodiment is used. [Diagram 2] FIG. 2 is a left side view showing the magnetic mounting device 10 of FIG. [Diagram 3] 2 is a rear view showing the magnetic mount 10 of FIG. 1 alone. FIG. [Figure 4] 3 is an explanatory diagram showing a state in which nozzle 91B of push bottle 91 is pushed in and a load equal to the maximum load capacity is applied to mounting plate 11 in magnetic mounting device 10 of FIG. 2. FIG. [Diagram 5] 3 is an explanatory diagram for explaining a method for removing the magnetic mount 10 of FIG. 2 from a wall surface 90. FIG. [Figure 6] 13 is an explanatory diagram illustrating an attractive force generating portion 31 of a back plate 30 of a magnetic mounting device according to a modified example. FIG. [Figure 7] 13 is an explanatory diagram illustrating an attractive force generating portion 41 of a back plate 40 of a magnetic mount according to a modified example. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] The configuration of the magnetic mounting device 10 (see FIG. 1) according to one embodiment of the present disclosure will be described below. In the following description, the "front", "rear", "left" and "right" of the magnetic mounting device 10 are defined by defining the side of the magnetic mounting device 10 facing the wall surface 90 as the "rear" and the side from which the mounting plate 11 protrudes as the "front".

[0026] 5, the magnetic mount 10 is an open shelf (a type of storage shelf) that is detachably installed on a wall surface 90 having a vertically extending flat iron plate 90A with its front surface covered with a plastic decorative plate 90B. Here, the iron plate 90A is configured to allow a magnet (not shown) to be installed by magnetic force, and corresponds to the "magnetic force installation means" in this disclosure.

[0027] 1, the magnetic mounting device 10 has a rectangular mounting plate 11 protruding forward from a rectangular back plate 20. In this embodiment, the mounting plate 11 protrudes from a position near the lower edge 24A of the back plate 20.

[0028] The mounting plate 11 has a mounting area 11B on its upper surface for mounting various items (for example, a push bottle 91 in FIG. 1). In FIG. 1, the mounting area 11B is depicted as an imaginary area with no substance. However, the mounting area 11B may be a substantial structure constituted by a surface pattern or color, a depression, or the like.

[0029] As shown in Fig. 5, the mounting plate 11 is provided with a detachable portion 11A that allows the user 92 to lift the mounting plate 11 with his / her hands to detach the magnetic mounting device 10 from the wall surface 90. In Fig. 5, the detachable portion 11A is depicted as having a chamfered "chamfered surface" on the lower side of the front edge of the mounting plate 11. However, the position and shape of the detachable portion 11A can be changed as appropriate. The detachable portion 11A may also be a non-three-dimensional configuration that is represented only by the pattern and color of the surface of the mounting plate 11.

[0030] 2, the back panel 20 is installed with the rear surface 20B aligned along the wall surface 90 and the front surface 20A facing away from the wall surface 90. The back panel 20 can be divided into an attractive force generating portion 21, a first extending portion 22, a mounting plate base portion 23, and a second extending portion 24, which will be described later.

[0031] The attraction generating portion 21 is a portion that extends continuously downward from the upper edge 21D of the back plate 20, and is provided with a magnet assembly 21A in which a plurality of rare earth magnets 21B (corresponding to the "permanent magnets" in this disclosure) are arranged along the rear surface 20B and embedded. In the magnet assembly 21A of this embodiment, the plurality of rare earth magnets 21B are each formed in a rectangular parallelepiped shape and are arranged to form a rectangular lattice (see FIG. 3) that extends in the vertical and horizontal directions.

[0032] As shown in Fig. 4, the attraction generating unit 21 is attracted to the wall surface 90 by generating a magnetic attraction force against the iron plate 90A by the magnet assembly 21A. The magnetic attraction force by the magnet assembly 21A is the resultant of the magnetic attraction forces generated by each rare earth magnet 21B of the magnet assembly 21A. Hereinafter, the magnitude of the "resultant magnetic attraction force" generated by each rare earth magnet 21B will be referred to as "F1", and the center of attraction will be referred to as "center of attraction 21C".

[0033] 4, the first extension portion 22 is a portion that extends downward continuously from the attractive force generating portion 21 and is located above the mounting plate 11. The first extension portion 22 does not have a configuration that generates a magnetic force, and therefore does not generate either an attractive force or a repulsive force of a magnetic force with respect to the iron plate 90A.

[0034] The mounting plate base 23 is adjacent to the first extension 22 from below, and is configured to project the mounting plate 11 forward. In Fig. 2, the mounting plate base 23 is depicted as a configuration in which the mounting plate 11 is fixed as a separate part, but the mounting plate base 23 (and other parts of the back plate 20) and the mounting plate 11 may be integrated as a single part. Like the first extension 22, the mounting plate base 23 does not have a configuration that generates a magnetic force, and therefore does not generate either an attractive force or a repulsive force of magnetic force with respect to the iron plate 90A.

[0035] The second extension 24 is a portion that extends downward continuously from the mounting plate base 23. The second extension 24 is a portion that constitutes the lower edge 24A of the back plate 20, and abuts against the wall surface 90 when the back plate 20 is in the installed state. The second extension 24, like the first extension 22, does not have a configuration that generates a magnetic force, and therefore does not generate either an attractive force or a repulsive force of magnetic force with respect to the iron plate 90A.

[0036] The back panel 20 is provided with an anti-slip material 10A made of a material having a higher coefficient of friction with respect to the wall surface 90 than any of the divided portions (the gravitational force generating portion 21, the first extending portion 22, the placement plate base portion 23, and the second extending portion 24) of the back panel 20. As shown in Figs. 2 and 3, this anti-slip material 10A covers the entire rear surface 20B of the back panel 20, including the above-mentioned portions of the back panel 20. In this embodiment, the anti-slip material 10A is made of a rubber material or an elastomer having a higher coefficient of friction with respect to the plastic constituting the decorative panel 90B of the wall surface 90.

[0037] The anti-slip material 10A exerts a frictional force (not shown) that suppresses the magnetic mounting device 10 from slipping down along the wall surface 90 by pressing the back plate 20 against the wall surface 90. Here, the "force pressing the back plate 20 against the wall surface 90" may correspond to, for example, the attractive force of the magnetic force generated by the attraction generating unit 21. Also, the "force pressing the back plate 20 against the wall surface 90" may correspond to a force that tends to rotate the magnetic mounting device 10 forward around the upper edge 21D, which is generated by a force acting downward on the mounting plate 11.

[0038] Incidentally, the magnitude of the magnetic attractive force of the attractive force generating unit 21 in the above-mentioned arrangement state (i.e., F1) is set so that the attractive force generating unit 21 is not pulled away from the wall surface 90 simply because a load equal to its maximum load capacity (hereinafter referred to as "F2") is applied to the mounting plate 11. Specifically, F1 is set so as to establish a relationship equivalent to the following formula 1 between the above-mentioned F2 and L1 and A shown in FIG.

[0039]

number

[0040] Here, FIG. 4 is a diagram showing a state in which a load equal to F2 is applied to the mounting plate 11 in the above-mentioned arrangement state of the back plate 20. In FIG. 4, the load applied to the mounting plate 11 is a resultant force of the weight 91A of the push bottle 91 placed on the mounting area 11B and the pressing force 92A of the user 92 pressing down the nozzle 91B of the push bottle 91. The representative point of this resultant force is shown as "representative point 11C" in FIG. 4. In this embodiment, the weight of the mounting plate 11 is negligibly small compared to F2. Therefore, the representative point 11C can be considered to be at the same position as the representative point of the resultant force of the forces acting downward on the mounting plate 11 (i.e., the weight 91A of the push bottle 91, the pressing force 92A of the user 92, and the resultant force of gravity acting on the mounting plate 11).

[0041] Furthermore, L1 is the distance from the lower edge 24A of the second extension portion 24 to the center of attraction 21C in the up-down direction, and A is the distance from the representative point 11C to the wall surface 90 in the front-rear direction.

[0042] The above formula 1 can be derived from the condition that "even when a load equal to F2 is applied to the mounting plate 11, the magnetic mounting device 10 does not roll forward around the lower edge 24A and fall" (hereinafter, referred to as "Condition X"). This can be derived, for example, as follows.

[0043]

number

[0044] Here, the angles of formulas 2 to 4 are shown in FIG. 4. Furthermore, L2 is the shortest linear distance from the lower edge 24A to the representative point 11C. Furthermore, F2A is the magnitude of the force component that tries to rotate the magnetic mounting device 10 forward about the lower edge 24A (rotation in the clockwise direction in FIG. 4) in the resultant force of the forces acting downward on the mounting plate 11. Furthermore, formula 6 is a formula that shows that the magnitude of the moment of the force that tries to rotate the magnetic mounting device 10 forward as viewed around the lower edge 24A is equal to or less than the magnitude of the moment of the force that tries to rotate it backward (rotation in the counterclockwise direction in FIG. 4).

[0045] In the magnetic mount 10 of this embodiment, as shown in Fig. 5, the attractive force center 21C of the attractive force generating part 21 is provided at a position where the distance from the upper edge 21D of the back plate 20 to the attractive force center 21C in the up-down direction (i.e., L3 in Fig. 5) is shorter than the above L1. Also, the detachable part 11A is provided at a position where the distance from the representative point 11D of the force lifting the detachable part 11A to the wall surface 90 in the front-rear direction (i.e., B in Fig. 5) is longer than the above A (see Fig. 4).

[0046] The above relationship is a necessary condition for suppressing the magnitude of the force required to rotate the magnetic mounting device 10 backward around the upper edge 21D (counterclockwise rotation in FIG. 5) and remove it from the wall surface 90 to less than the maximum load capacity of the mounting plate 11 (i.e., F2). Specifically, the above relationship is a necessary condition for suppressing the minimum value of the magnitude F3 of the lifting force of the removal part 11A to less than the above F2, which satisfies the condition that "the magnetic mounting device 10 is rotated backward around the upper edge 21D against the attractive force of the attractive force generating part 21 by lifting the removal part 11A" (hereinafter referred to as "Condition Y"). This necessary condition can be derived, for example, as follows.

[0047]

number

[0048] Here, the angles of the formulas 7 to 9 are shown in FIG. 5. L4 is the shortest linear distance from the upper edge 21D to the representative point 11D. F3A is the magnitude of the force component that rotates the magnetic mount 10 backward around the upper edge 21D in the lifting force that lifts the detachable part 11A. Formula 11 is an equation that indicates that the magnitude of the force moment that rotates the magnetic mount 10 backward around the upper edge 21D is greater than the magnitude of the force moment that rotates the magnetic mount 10 forward (clockwise rotation in FIG. 5). In formulas 11 to 14, in order to discuss the minimum value of F3, it is assumed that no other articles are placed on the mount plate 11 and the magnitude of the force acting downward on the mount plate 11 is negligibly small.

[0049] In this embodiment, F1 is set so as to satisfy the relationship of the above-mentioned formula 1, as well as the relationship equivalent to the following formula 15. Formula 15 indicates the condition that "the entire magnetic mounting device 10 in a state where a load equal to F2 is applied to the mounting plate 11 can be supported by the attractive force generating part 21 alone so as not to slide down from the wall surface 90."

[0050]

number

[0051] Here, A, F1, F2A, L1, and L2 are the same as those in Equation 1 to Equation 6 and FIG. 4. μ is the static friction coefficient of the non-slip material 10A against the decorative plate 90B of the wall surface 90. W is the weight of the entire magnetic mounting device 10. The right side of Equation 15 indicates the magnitude of the resultant force acting downward on the magnetic mounting device 10 when a load equal to F2 is applied to the mounting plate 11. The left side of Equation 15 indicates the magnitude of the static friction force generated by the force of the magnet assembly 21A attracting the attraction force generating unit 21 to the wall surface 90 against the force acting downward on the mounting plate 11. The middle part of Equation 15 is obtained by transforming the left side of Equation 15 using Equation 5.

[0052] According to the magnetic mounting device 10 described above, the anti-slip material 10A can prevent the magnetic mounting device 10 from sliding down along the wall surface 90. In addition, the rear surface 20B of the magnetic mounting device 10 is aligned with the wall surface 90, and the mounting plate base 23 is spaced downward from the attractive force generating part 21 via the first extending part 22. Therefore, when the back plate 20 of the magnetic mounting device 10 installed on the wall surface 90 is pulled away from the mounting plate base 23 (see FIG. 5), the back plate 20 of the magnetic mounting device 10 functions as a second type of lever with the upper edge 21D of the back plate 20 as a fulcrum, and pulls the attractive force generating part 21 away from the wall surface 90. Therefore, according to the magnetic mounting device 10, it is possible to suppress the magnetic mounting device 10 from slipping down while keeping the force required to remove the magnetic mounting device 10 from the wall surface 90 relatively small (specifically, smaller than the adhesive force of the magnetic attraction force generating unit 21).

[0053] Furthermore, in the magnetic mounting device 10 that is detachable from the wall surface 90, the anti-slip material 10A receives a force from the attractive force generating unit 21 in a direction that presses it against the wall surface 90. Therefore, according to the magnetic mounting device 10, the attractive force generating unit 21 increases the magnitude of the frictional force generated between the anti-slip material 10A and the wall surface 90, and the magnetic mounting device 10 can be further prevented from slipping down.

[0054] Furthermore, according to the magnetic mounting device 10, the mounting plate 11 and the back plate 20 function as a lever, and the rotation of a first type of lever (not shown) with the mounting plate base 23 as a fulcrum can be suppressed by using the second extending portion 24 as a stopper. This reduces the risk that the attractive force generating portion 21 will be pulled off the wall surface 90 due to the load applied to the mounting plate 11.

[0055] Furthermore, according to the magnetic mounting device 10, by using the rare earth magnet 21B, which is a permanent magnet, in the attraction generating part 21, it is possible to eliminate the need to supply power to this attraction generating part 21.

[0056] Furthermore, according to the magnetic mounting device 10, by using the rare earth magnet 21B, which is a permanent magnet having a greater residual magnetic flux density and coercive force than other types of permanent magnets, in the attraction force generating part 21, the attraction force of the magnetic mounting device 10 can be strengthened.

[0057] Furthermore, according to the magnetic mounting device 10, it is possible to provide a magnetic mounting device 10 that can be produced by reducing the size of the rare earth magnet 21B used in the attraction generating unit 21 of the magnetic mounting device 10, without using a large-scale magnetic field generating device (not shown).

[0058] Furthermore, according to the magnetic mounting device 10, the attractive force generating part 21 will not be peeled off from the wall surface 90 simply on the condition that a load equal to the maximum load capacity of the mounting plate 11 (ie, F2) is applied thereto.

[0059] Furthermore, according to the magnetic mounting device 10, by lifting the removal portion 11A of the mounting plate 11 and rotating the magnetic mounting device 10 around the upper edge 21D of the back plate 20, the magnetic mounting device 10 can be removed from the wall surface 90 with a force smaller than the maximum load capacity (i.e., F2) of the mounting plate 11.

[0060] The above describes the embodiment of the present disclosure. However, it is clear to those skilled in the art that various substitutions, modifications, and changes are possible without departing from the purpose of the present disclosure. In other words, the embodiment of the present disclosure may include all substitutions, modifications, and changes that do not deviate from the spirit and purpose of the utility model claims attached to this specification. For example, the following various embodiments can be implemented as the embodiment of the present disclosure.

[0061] (1) The magnetic mount of the present disclosure is not limited to being installed on a wall surface having a configuration in which an iron plate is covered with a decorative plate. That is, the magnetic mount of the present disclosure can be installed on a wall surface having a configuration in which an iron plate is covered with a paint coating or wrapping film. The magnetic mount of the present disclosure can be installed on a wall surface having any magnetic force installation means, such as a wall surface using iron for the surface structure of tiles or wallpaper, or a wall surface having iron metal fittings embedded inside. The "iron" mentioned above as the magnetic force installation means may be a magnet or a ferromagnetic material other than iron (for example, an alnico alloy).

[0062] (2) In the magnetic mounting device of the present disclosure, the attraction generating unit is not limited to a configuration in which a magnet assembly in which a plurality of rare earth magnets are arranged to form a rectangular lattice is embedded in the back plate. For example, the attraction generating unit of the present disclosure may be a configuration in which a magnet assembly in which, for example, bar magnets are arranged in a row is embedded in the back plate. In addition, in the magnetic mounting device of the present disclosure, a configuration in which the back plate is formed by a laminated assembly in which a plurality of layers are laminated, and a magnet provided in at least one of these layers is used as the attraction generating unit, can be adopted. In this case, the magnet of the attraction generating unit may be embedded in a layer of the laminated assembly. For example, the attraction generating unit 31 of the back plate 30 according to the modified example shown in FIG. 6 is a laminated assembly in which the front and rear of the layer of the magnet mounting frame 31E in which the rare earth magnet 31B is embedded are covered with a covering layer 31F and a non-slip material 30A. In addition, the magnet of the attraction generating unit may be a magnet sheet that itself constitutes a layer of the laminated assembly. For example, the attractive force generating part 41 of the back plate 40 according to the modified example shown in Fig. 7 is a laminated assembly in which the front and rear of the layer of the magnet sheet 41B are covered with a covering layer 41F and a non-slip material 40A. In addition, when the magnet type mounting device is required to be relatively small for the purpose of use, a permanent magnet (specifically, for example, a ferrite magnet or an alloy magnet) having a smaller magnetic flux density than a rare earth magnet may be used for the attractive force generating part. In addition, the magnet of the attractive force generating part may be an electromagnet that generates a magnetic force by receiving a supply of electric power.

[0063] (3) In the magnetic mounting device of the present disclosure, the first extension, the mounting plate base, and the second extension do not necessarily generate magnetic attraction to the magnetic installation means. For example, in the back plate 40 shown in FIG. 7, the layer of the magnetic sheet 41B may extend downward from the attraction generating portion 41. The back plate of the magnetic mounting device may have an additional magnet in a portion (for example, the first extension, the mounting plate base, and / or the second extension) other than the attraction generating portion. The back plate of the magnetic mounting device may be made of a permanent magnet having a smaller magnetic flux density than the permanent magnet of the attraction generating portion. The back plate of the magnetic mounting device may be magnetized by the magnetic force generated by the attraction generating portion. In these cases, the first extension, the mounting plate base, and the second extension of the back plate may generate magnetic attraction or repulsion to the magnetic installation means. Even in such a case, if the magnetic force generated in parts of the back panel other than the attraction force generating part is small (to a negligible degree) compared to the attraction force of the magnetic force generated in the attraction force generating part, the present disclosure can exert its effects.

[0064] (4) In the magnetic mounting device of the present disclosure, the anti-slip material does not need to cover the entire rear surface of the back plate. For example, the anti-slip material may be omitted in part or in whole, leaving at least the rear surface of the part of the back plate corresponding to the gravitational force generating part. Specifically, the anti-slip material may cover only the rear surface of the part of the back plate corresponding to the gravitational force generating part. The anti-slip material may also cover one or more rear surfaces of the parts of the back plate corresponding to the first extension, the mounting plate base, and the second extension, in addition to the part of the back plate corresponding to the gravitational force generating part. Even in these cases, if a relationship equivalent to Equation 15 is established for the magnitude (F1) of the magnetic force of the gravitational force generating part in the installed state, the entire magnetic mounting device can be supported by the gravitational force generating part alone so as not to slip down from the wall surface even if the mounting plate is subjected to the maximum load capacity. The anti-slip material may be omitted from the portion of the rear surface of the back plate that corresponds to the attraction generating portion, and may be left in one or more of the portions that correspond to the first extension, the base of the mounting plate, and the second extension. The back plate may be configured such that the anti-slip material is omitted from the entire rear surface. Even in this case, if the anti-slip material protrudes from the edge or the mouth surface (the end surface in the thickness direction) of the back plate or the front surface, and this anti-slip material abuts against the wall surface when installed, it is possible to prevent the magnetic mounting device from slipping down.

[0065] (5) The configuration and use of the magnetic mount of the present disclosure are not limited to the open shelf described in the embodiment above. For example, the magnetic mount of the present disclosure can be applied to various storage shelves, such as a block shelf in which the lower plate of a horizontally oriented cylinder is used as a mount plate, or a cabinet in which items are stored in a box body including a mount plate and a back plate. The magnetic mount of the present disclosure can also be applied to a mount on which only specific types of items are placed, such as a TV stand or a picture stand. The magnetic mount of the present disclosure can also be applied to a mount used by small animals such as cats and small birds as a foothold. In this case, an accessory (such as a box for a cat or a perch for a small bird) designed with the small animal in mind may be placed and installed on the mount plate of the mount. [Explanation of symbols]

[0066] 10 Magnetic mounting device 10A Anti-slip material 11. Mounting plate 11A Removal part 11B Loading area 11C Representative point 11D representative point 20 back plate 20A front 20B Rear 21 Gravity generating unit 21A Magnet Assembly 21B Rare Earth Magnet 21C Center of gravity 21D Upper edge 22 First extension 23 Base of the mounting plate 24 Second extension 24A Lower edge 30 backboard 30A Anti-slip material 31 Gravity generating unit 31B Rare earth magnet 31E Magnet mounting frame 31F Covering layer 40 Backboard 40A Anti-slip material 41 Gravity generating unit 41B Magnetic sheet 41F Covering layer 90 Wall 90A Iron plate (magnetic installation means) 90B Decorative Panel 91 Push Bottle 91A Self-weight 91B Nozzle 92 User 92A Pressing force

Claims

1. A magnetic mounting device that is detachably mounted on a wall surface and has a magnetic mounting means that allows a magnet to be mounted by magnetic force, A back plate is provided with a rear surface along the wall surface and a front surface facing away from the wall surface, The back plate is an attraction generating unit that generates a magnetic attraction force for the magnetic force installation means to attract the magnetic body to the wall surface; a first extension portion extending downward from the attractive force generating portion; a mounting plate base portion adjacent to the first extending portion from below and protruding the mounting plate forward; a non-slip material made of a material having a friction coefficient with respect to the wall surface that is greater than those of the attraction generating portion, the first extending portion, and the base portion of the support plate; Equipped with Magnetic mounting fixture.

2. The magnetic mounting device according to claim 1, The anti-slip material covers the attraction force generating part from the rear surface side. Magnetic mounting fixture.

3. The magnetic mounting device according to claim 1 or 2, The lower edge of the back plate is configured by a second extending portion that extends downward from the base portion of the mounting plate and abuts against the wall surface in the installed state. Magnetic mounting fixture.

4. The magnetic mounting device according to claim 1 or 2, The attraction force generating unit includes a magnet assembly having a plurality of permanent magnets arranged along the rear surface. Magnetic mounting fixture.

5. The magnetic mounting device according to claim 3, The magnitude of the attractive force in the installed state is represented as F1, The distance from the lower edge of the second extension portion to the center of attraction of the attractive force in the up-down direction is represented as L1, The maximum load capacity of the loading plate is represented as F2, When the distance from the representative point of the resultant force acting downward on the loading plate in the above-described arrangement state and with a load equal to F2 being applied thereto to the wall surface in the front-rear direction is represented as A, A relationship equivalent to the following formula 1 is established between F1, L1, F2, and A. Magnetic mounting fixture. [0010]

6. The magnetic mounting device according to claim 5, the mounting plate includes a removal portion that allows the magnetic mounting device to be removed from the wall surface by lifting the mounting plate; The distance from the representative point of the force lifting the detachable portion to the wall surface in the front-rear direction in the installed state is represented as B, When the distance from the center of attraction of the force to the upper edge of the back plate in the vertical direction is represented as L3, The length B is longer than the length A, and the length L1 is longer than the length L3. Magnetic mounting fixture.

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