JP2023079061A - magnetic wall hanging system - Google Patents

Abstract

To provide a magnetic wall hanging system having a simple structure, capable of obtaining a relatively large withstand load, and excellent in fire resistance.SOLUTION: A magnetic wall hanging system 1 includes a magnetic wall surface 11 formed by attaching a wall surface magnet sheet 21 to a wall surface forming a substantially vertical plane, and a hanging tool 50 attached with a hanging tool magnet sheet 51, and is made by magnetically attracting the hanging tool magnet sheet to the magnetic wall surface. Both the wall surface magnet sheet and the hanging magnet sheet are multi-polarized with the same magnetization pitch on the surface, and the wall surface magnet sheet has a thickness of 150 μ to 540 μ including a mounting sheet 25, and a magnetization line 24X formed by a boundary portion between any one magnetic pole 22 and the adjacent magnetic pole 23 on the surface of the wall surface magnetic sheet is virtually horizontal.SELECTED DRAWING: Figure 1

Description

The present invention relates to a magnetic wall hanging system. More specifically, the present invention relates to a system that can ensure nonflammability of a wall surface and can hang an article on the wall surface using magnetic attraction/repulsion.

As one system for hanging articles on a wall surface using a magnetic attraction force, Patent Document 1 discloses a configuration including a magnet attraction decorative plate and a fastener (tool) provided with a magnet sheet. . This hook is detachably hooked to the magnet-attracting decorative plate by magnetic force, and is exemplified as being applied to a hanging hook, a bookshelf, and the like.

In the fasteners used in the above systems, in order to ensure a greater load capacity, the magnetic attraction force is increased, or the surface of the magnetic body such as a magnetic sheet is coated or pasted with an adhesive material to reduce friction. Efforts have been made to strengthen For example, Patent Literature 2 discloses a fastener that combines a strong permanent magnet that magnetically attracts a soft magnetic wall surface and a non-slip elastic body.
On the other hand, Patent Document 3 discloses a display piece provided with a magnetic sheet magnetized at the same pitch as the magnetic sheet on a wall surface to which a multipolar magnetized type magnetic sheet is attached. is magnetically attracted.

Utility model registration No. 3207754 Japanese Utility Model Laid-Open No. 49-138266 Utility model registration No. 3039710

However, the technique of Patent Document 1 may fail to obtain a sufficient static friction force due to contamination of the wall surface and deterioration or contamination of the elastic body. Furthermore, Patent Document 2 requires a special permanent magnet and becomes an exaggerated fastener. In the technique of Patent Document 3, the display sheet and a light load work well, but when the load increases, the magnetic attraction force is weak and a sufficient coefficient of friction cannot be secured, so the fastener falls off. put away. On the other hand, when such a system is applied to an indoor wall, it is desired to have excellent fire resistance so as not to spread damage in the event of a fire.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a magnetic wall hanging system which has a simple structure, can withstand a relatively large load, and has excellent fire resistance.

The present invention employs the following means to solve the above problems. In addition, the symbols in parentheses attached to each configuration means in this column ("Means for Solving the Problems" column) are for reference to indicate the correspondence with specific means described in the embodiments described later. However, the configuration means of the present invention is not limited to this.

One aspect of the present invention is a magnetic wall surface (11) formed by attaching wall surface magnet sheets (21, 21A) to a wall surface forming a substantially vertical plane, and a fastener magnet sheet (51, 61). , 81), and the magnetic wall surface (50, 60, 80) is magnetically attracted to the magnetic wall surface (11). In the fastening system (1, 2, 3), the wall surface magnet sheet (21, 21A) and the fastener magnet sheet (51, 61, 81) are both multipolarly magnetized with the same magnetization pitch on the surface. The wall surface magnet sheet (21, 21A) has a thickness of 150 μ to 540 μ including the mounting sheet (25), and any one magnetic pole (22) on the surface of the wall surface magnet sheet (21, 21A) It is characterized in that the magnetization lines (24X, 24AX) formed by the boundaries with the adjacent magnetic poles (23) are substantially horizontal.

According to this aspect, the load applied to the fastener (50, 60, 80) is applied by the static frictional force (Q) between the magnetic wall surface (11) and the fastener magnet sheet (51, 61, 81). When the fasteners (50, 60, 80) try to move vertically downward in a situation slightly larger than the limit of stopping, the wall surface magnet sheets (21, 21A) and the different poles face each other, and strong magnetic adsorption force The attracted fastener magnet sheets (51, 61, 81) approach or overlap the same poles of the wall surface magnet sheets (21, 21A). At this time, a magnetic repulsive force (f1) is generated vertically upward. As a result, the load can be supported. The coefficient of friction between the magnetic wall (11) and the fasteners (50, 60, 80) is essentially irrelevant to this phenomenon.

Therefore, in addition to the effect of the material having a high coefficient of friction and the adhesive material, it is possible to further increase the withstand load. This is because the load resistance due to the magnetic repulsive force f1 is added to the load resistance due to the coefficient of friction of the material used. Here, the latching based on the frictional force and the latching based on the magnetic repulsive force are completely independent. In other words, it is possible to increase the relative load capacity with an extremely simple structure.
In addition, the wall surface magnet sheets (21, 21A), including the mounting sheet (25), have a thickness of 150 μm to 540 μm, and satisfy the evaluation criteria of the predetermined performance test regarding fire resistance. It is suitable as

Another aspect of the present invention is that the magnetization pitch between the wall surface magnet sheets (21, 21A) and the fastener magnet sheets (51, 61, 81) is 1 mm or more and 7.0 mm or less.

In another aspect of the present invention, the wall surface magnet sheets (21, 21A) have a soft magnetic board (30) as a back yoke.

According to this aspect, the decrease in magnetic force caused by thinning the wall surface magnet sheets (21, 21A) to ensure fire resistance is reduced by the back yoke effect of the soft magnetic layer (32) in the soft magnetic board (30). It is possible to cover the magnetic wall surface (11) and ensure sufficient magnetic force, that is, a high surface magnetic flux density.

Another aspect of the present invention is that the wall magnet sheets (21, 21A) are anisotropic.

According to this aspect, the magnetic attraction action between the back yoke of the soft magnetic layer (32) on the back side and the magnetic sheet (51) of the fastener (50) magnetically attached to the magnetic wall surface (11) is maximized. be able to.

Another aspect of the present invention is that the soft magnetic board (30) is a gypsum board laminated with a magnetic layer on one side, a steel plate, or a steel plate laminated with a covering sheet or a functional sheet.

Another aspect of the present invention is that the wall surface magnet sheet (21A) has at least one of curved and bent shapes at a specific position (27) in the middle of the magnetized lines (24AX). The stopper magnet sheet (81) has a magnetic pole structure in which the shape of the specific position (27) of the magnet sheet (21A) and the mirror image relationship and the N pole and the S pole are reversed.

According to this aspect, the fastener (80) to which the fastener magnet sheet (81) is attached is perfectly magnetically attached at the specific position (27) without being displaced vertically or horizontally.

According to this aspect, it is possible to provide a magnetic wall hanging system that has a simple structure, can obtain a relatively large load capacity, and has excellent fire resistance.

1 is a perspective view of a first magnetic wall hanging system; FIG. FIG. 2 is a two-sided view of a magnetic sheet on the side of a magnetic wall in the first magnetic wall hanging system; FIG. 4 is a two-sided view of the magnet sheet on the side of the fastener in the first magnetic wall hanging system; FIG. 11 is a side view showing an example of use of the first magnetic wall hanging system; FIG. 5 is a side view for explaining the acting force and the relative positional relationship between the two magnet sheets in FIG. 4; FIG. 11 is a diagram for explaining a second magnetic wall hanging system; FIG. 10 is a side view for explaining the acting force and the relative positional relationship between the two magnet sheets in the second magnetic wall hanging system; It is an enlarged view of the dashed-dotted line part of FIG.7(b). Fig. 10 is a perspective view of a third magnetic wall-hanging system; FIG. 11 is a front view showing a magnet sheet used in a third magnetic wall hanging system; FIG. 11 is an exploded perspective view showing a modification of the third magnetic wall-hanging system;

[First magnetic wall hanging system]
FIG. 1 is a perspective view showing a first magnetic wall hanging system 1, where (a) is an external view and (b) is a partially exploded view. FIG. 2 is a two-sided view of the magnet sheet 21 on the side of the magnetic wall 10 in the first magnetic wall hanging system 1, where (a) is a front view and (b) is a side view. 3A and 3B are two views of the magnet sheet 51 on the side of the fastener 50 in the first magnetic wall hanging system 1, where (a) is a front view and (b) is a side view.
In addition, in these figures including each figure described later, the three axes of the orthogonal coordinate system are XYZ, and the wall surface 11 of the magnetic wall 10 is assumed to be perpendicular to the XY plane and parallel to the ZX plane. Also, the figures are not necessarily drawn to scale, and some elements thereof are merely drawn for clarity of the invention.

The first magnetic wall hanging system 1, as shown in FIG. The hook 50 is hooked to the wall surface 11 of the magnetic wall 10 by magnetic attraction between the magnetic sheet 51 and the magnet sheet 51 .

The magnetic wall 10 includes a magnetic wall material sheet 20, a soft magnetic board 30, and a wall base 40, as shown in FIG. 1(b).

The magnetic wall material sheet 20 is configured by laminating a wall material film 25 on a magnet sheet 21 via, for example, a urethane-based adhesive.

The magnet sheet 21 is a flexible sheet-like magnet with a thickness of 80 μm to 400 μm, and as shown in FIG. poles and S poles) are alternately formed in stripes at equal intervals to form a double-sided multipolar magnetization type having magnetization lines 24X at a constant pitch. Here, the magnetization line 24X is an imaginary boundary line between an arbitrary magnetic pole 22 on the surface of the magnet sheet 21 magnetized to multiple poles and the adjacent magnetic pole 23 having a different polarity. In reality, it is a part that looks white when a magnetic viewing sheet (a film in which magnetic fluid microcapsules are uniformly dispersed) is brought into close contact, and the normal direction on the surface of the magnetic sheet, that is, perpendicular to the surface A region in which the directional magnetic field is significantly weaker or zero. That is, the magnetization line 24X means a virtual line on the sheet surface. The magnetization lines 24X in the present invention are located at both ends of the magnet sheet 21 in the thickness direction in a side view.

The reason why the thickness of the magnet sheet 21 is set within the above range is to ensure fire resistance and magnetic retention. That is, if it exceeds 400 μm, it becomes difficult to ensure fire resistance, and if it is less than 80 μm, sufficient magnetic holding force cannot be expected. The double-sided multipolar magnetization type is used because both the front and back sides require a suitable magnetic attracting force. That is, one surface of the magnet sheet 21 faces the indoor space, and is provided with a display piece equipped with a ferromagnetic material (which may or may not have properties as a magnet) or a hanging member such as a shelf. The other surface is magnetically attracted to a soft magnetic board 30 having a soft magnetic layer 32 (described later), and functions to ensure the back yoke effect that occurs at that time. It is from.

Such a magnet sheet 21 is composed of fine powder of a hard magnetic material (for example, ferrite magnet materials such as barium ferrite and strontium ferrite, or rare earth magnet materials such as samarium/cobalt magnets, neodymium/iron/boron magnets) and viscose. A mixture with a small amount of organic polymer elastomer (e.g., chlorinated polyethylene, chlorosulfonated polyethylene, ethylene-vinyl acetate copolymer, ethylene-propylene rubber, nitrile rubber, acrylic rubber, chloroprene rubber) as a binding material is rolled. Alternatively, it is manufactured by forming it into a sheet shape by a forming method such as extrusion and applying magnetization on both sides. It should be noted that the magnet sheet 21 is preferably made of an anisotropic material rather than an isotropic material. An anisotropic material has stronger magnetization in the direction perpendicular to the surface of the sheet than an isotropic material, and it is easy for magnetic force to pass from one surface to the back surface. ) and the magnetic sheet 51 of the fastener 50 magnetically attached to the wall surface 11 can be maximized. Also, the magnetization pitch of the magnet sheet 21 is preferably 1.0 mm or more and 7.0 mm or less. More preferably, it is 2.0 or more and 6.0 mm or less.

The wall material film 25 is a film-like decorative wall material having a thickness of 70 μm to 140 μm, and has an ink layer on which a picture or pattern is printed on the upper surface of a base film (not shown). As the base film, a thermoplastic resin such as a polyvinyl chloride resin or a polyethylene resin having an ink-receiving layer formed on the surface thereof, or a thin coated paper can be used. Ink is fixed on this ink-receiving layer by printing according to the application. Examples of printing methods include offset printing, letterpress printing, inkjet printing, and thermal transfer printing. The wall material film 25 having such a structure has already been produced. The reason why the thickness is set to 140 μm or less is that the total thickness of the magnetic wall material sheet 10 is set to 540 μm or less, which is the maximum thickness that can be expected to ensure fire resistance. On the other hand, if it is thicker than necessary, the permeability of the magnetic lines of force from the sheet magnet will be reduced, and the magnetic attracting ability of the magnetic wall will be deteriorated. The reason why the thickness is set to 70 .mu.m or more is to ensure appropriate tensile strength and concealment capability of the lower layer magnetic sheet 21. FIG.

The magnetic wall material sheet 20 described above conforms to ISO 5660-1 and conforms to the fire resistance test method and performance evaluation standards based on Article 2, Item 9 of the Building Standards Law and Article 108-2 of the Building Standards Law Enforcement Ordinance. In a heat build-up test with a meter tester, [1] the total calorific value for 20 minutes after the start of heating is 8 MJ/m ² or less, and [2] the maximum heat release rate is 200 KW for 10 seconds or longer for 20 minutes after the start of heating. /m ² and [3] having non-combustibility that satisfies the condition of no cracks or holes harmful to fire prevention for 20 minutes after the start of heating.

Furthermore, in the gas toxicity test according to the gas toxicity test method according to the Ministry of Construction Notification No. 1231 of August 25, 1976, the average behavior stop time value of mice is 6.8 minutes or more. there is That is, the test specimen was heated in a heating furnace by radiant heat and flame contact from an electric heater, and the eight mice inhaled the generated gas until the behavior stopped (behavior stop time). After obtaining the standard deviation σ, the mouse action stop time Xs is obtained from the following equation.
Xs = X-σ
A passing criterion is met if the value of Xs is greater than 6.8 minutes (mouse cessation time on standard wood). Here, the reason why the value obtained by subtracting the standard deviation from the average value of the action stop time is used as the pass/fail judgment criterion is based on the concept of evaluating including variations in materials and test results.

The soft magnetic board 30 includes a gypsum board 31 and a soft magnetic layer 32 laminated on one side of the gypsum board 31 . The soft magnetic board 30 is attached to the wall substrate 40 made of plywood, concrete, light metal, etc. with the soft magnetic layer 32 facing the front side, that is, toward the indoor space, and is attached with nails, screws, adhesives, staples, or the like. It is fixed by fastening. As the soft magnetic board 30, a board obtained by laminating a decorative steel plate layer on one side of an inorganic board, a steel plate, or a board obtained by laminating a mounting sheet or a functional sheet on a steel plate may be used.

The magnetic wall material sheet 20 is fixed by magnetically attracting the magnetized surface of the magnet sheet 21 to the surface of the soft magnetic layer 32 of the soft magnetic board 30 . As a result, the magnetic wall material sheet 20 functions as a magnetic wall capable of magnetically attracting a ferromagnetic material to the wall surface 11 thereof. That is, the surface is designed, and a display piece or an article such as a shelf with a ferromagnetic material can be attracted and held by magnetic force.

In such a magnetic wall material sheet 20, the total thickness of the magnet sheet 21 and the wall material film 25 is preferably 150 μm to 540 μm.

As shown in FIG. 1(b), the latch 50 includes a plate-like back plate 57, a hook 58 provided at the bottom of the back plate 57, and a magnet fixed to the back surface of the back plate 57 with an adhesive. A sheet 51 is provided, and a load (article) L suspended from a hook 58 can be hooked to the wall surface 11 by magnetic attraction force.

As with the magnet sheet 21, the magnet sheet 51 is made of a sheet-shaped magnet obtained by magnetizing a mixture of, for example, a synthetic resin as a binder and magnetic powder made of a hard magnetic substance. That is, as shown in FIG. 3, magnetic poles 52 and 53 (N pole and S pole) having a constant width and having different polarities are alternately formed on the front and back surfaces in stripes at equal intervals, and are magnetized at a constant pitch. It is a double-sided multipolar magnetized type having lines 54X. The magnetization pitch of the magnet sheet 51 is the same as the magnetization pitch of the magnet sheet 21 .

Next, the effects specific to the first magnetic wall hanging system 1 will be described with reference to FIGS. 4 and 5. FIG.
FIG. 4 is a side view showing an example of use of the first magnetic wall hanging system 1, and shows a state in which the hanging tool 50 with the load L suspended from the hook 58 is hung on the wall surface 11. FIG.
FIG. 5 is a side view for explaining the acting force and the relative positional relationship between the two magnet sheets 21 and 51 in FIG. Fig. 3(b) shows the state just before the load L is so heavy that the static frictional force Q alone cannot support it.
It should be noted that the position of the point in the Y-axis direction where the load acts on the suspender 50 is a certain distance away from the wall surface 11, but in the suspender 50 this distance is so small that it is not considered. . That is, the clockwise rotational moment of the fastener 50 in FIG. 4 is not considered.

In FIG. 4, the fastener 50 is attracted and hung on the wall surface 11 by the magnetic attraction force P acting between the magnet sheet 21 on the side of the magnetic wall 10 and the magnet sheet 51 on the side of the fastener 50 . At this time, as shown in FIG. 5A, the magnet sheet 21 and the magnet sheet 51 are in a state in which their different polarities (the N pole 22 and the S pole 53, and the S pole 23 and the N pole 52) are magnetically attached. It's becoming In this state, the following force balance formula is established in the Z-axis direction.
μ×P=W Note that P=R×P ₀ .
Here, W is the total load of the fastener 50 and the load L, μ is the coefficient of static friction between the magnet sheet 51 and the wall surface 11, P is the magnetic adsorption force acting between the magnet sheet 21 and the magnet sheet 51, R is the area of the magnetized surface of the magnet sheet 51 , and P ₀ is the magnetic adsorption force acting between the magnet sheet 51 and the magnet sheet 21 per unit area.

Next, assume that the load L is changed to a heavier one, and that the load applied to the fastener 50 is slightly larger than the limit of the frictional force Q (FIG. 5(b)).

Under the above conditions, when the fastener 50 attempts to move vertically downward, the magnetic poles of the magnet sheet 21 and the magnetic sheet 51 with different polarities face each other and are attracted by a strong magnetic adsorption force. approaches or overlaps the magnetic poles of At this time, in the area A of FIG. 5B, a magnetic repulsive force f1 is generated vertically upward. As a result, the load W2 can be supported. The coefficient of friction between wall 11 and fastener 50 is essentially irrelevant to this phenomenon.

As described above, according to the first magnetic wall hanging system 1, since a strong frictional force is essentially not required, even if a material with a high coefficient of friction or an adhesive material that is intentionally used is omitted, relative can provide a fastener system with high load capacity. In other words, it is possible to increase the relative load capacity with an extremely simple structure. This is because the load resistance due to the magnetic repulsive force f1 is added to the load resistance due to the coefficient of friction of the material used.
In other words, it is an invention that makes use of the physical law that like poles of magnets repel each other and opposite poles attract each other. The latching by the frictional force and the latching by the magnetic repulsive force are completely independent. If a material with a large coefficient of friction or an adhesive is used in combination, even greater load resistance can be achieved. In addition, it is possible to attach a glossy decorative sheet to the hanging (wall) surface. It is effective not only as a magnetic sheet but also as a wall surface for magnetically holding displays and display items printed on extremely thin steel plates, specifically Steel Paper (registered trademark) manufactured by the applicant.

In addition, the magnetic wall material sheet 20 satisfies the evaluation criteria of the above-described test for fire resistance, so it is suitable for indoor walls of buildings, but it may also be applied to outdoor walls. The same applies to the systems of the embodiments described later.
Other advantages include:
That is, since the magnetic wall material sheet 20 can be detachably integrated with the soft magnetic board 30 by magnetic force without using an adhesive, the replacement of the wall material sheet does not require a skilled technique or a special dedicated tool. In other words, the wall material sheet can be easily reformed in a short period of time with a feeling of DIY.

In the magnetic wall 10, the soft magnetic board 30 is arranged on the back surface of the magnet sheet 21 to generate a back yoke effect and increase the magnetic force.
In other words, the back yoke effect of the soft magnetic board 30 compensates for the decrease in magnetic force caused by thinning the magnet sheet 21 to ensure fire resistance, ensuring sufficient magnetic force on the wall surface 11, that is, a high surface magnetic flux density. can.

The magnet sheet 21 is magnetically attached to the soft magnetic board 30 so that the magnetization lines 24X are parallel to the horizontal direction. Since they are mounted, the hanging member 50 and the wall surface 11 can be arranged such that the striped magnetic poles of different poles on the respective magnetic sheets 51 and 21 are magnetically attracted to each other in a horizontal state. At this time, the article can be easily slid in the horizontal direction parallel to the magnetization lines 24X and 54X with a small force, but it cannot be slid in the vertical direction orthogonal to the magnetization lines 24X and 54X with a small force. Can not. The reason for this is that when a force is applied in a direction perpendicular to the magnetization line, a repulsive force acts between the same poles of the magnet sheets 51 and 21, and this repulsive force prevents the magnet sheet 51 from moving in the direction perpendicular to the wall surface 11. because it interferes. Therefore, movement of the article in the direction orthogonal to the magnetization line is restricted. Therefore, it becomes possible to easily fix the fastener 50 horizontally.

[Second magnetic wall hanging system]
Next, the second magnetic wall hanging system 2 will be described. FIG. 6 is a diagram for explaining the second magnetic wall hanging system 2. As shown in FIG. (a) is a perspective view showing the whole, and (b) is a side view showing an example of its use.

As shown in FIG. 6( a ), the second magnetic wall anchor system 2 has a latch 60 instead of the latch 50 in the first magnetic wall anchor system 1 . The rest of the configuration is the same as that of the first magnetic wall hanging system 1, and the same constituent elements are given the same reference numerals and their explanations are omitted.

The latch 60 is an L-shaped magnetic shelf when viewed from the side and includes a rear plate 67 and a mounting plate 68. A magnetic sheet 61 is adhered to the rear surface of the rear plate 67 with an adhesive. The hanging member 60 can be hung on the wall surface 11 in a state where an article to be the load L is placed on the loading plate 68 .
The magnet sheet 61 is the same as the magnet sheet 51 of the fastener 50 in the first magnetic wall hanging system 1 described above. 7, 8).

In the second magnetic wall hanging system 2, due to the structure of the hanging device 60, the position of the point in the Y-axis direction where the load W (the sum of the self weight of the hanging device 60 and the load L) acts is from the wall surface 11. a certain distance away. As a result, when the fastener 60 remains on the wall surface 11, the fastener 60 generates a rotational moment M in the clockwise direction in the figure.

Next, the effects specific to the second magnetic wall hanging system 2 will be described with reference to FIGS. 7 and 8. FIG.

FIG. 7 is a side view for explaining the acting force and the relative positional relationship between the two magnet sheets 21 and 61 in FIG. The state when the tool 60 is staying on the wall surface 11 is shown, and (b) shows the state immediately after the load L is so heavy that the static friction force Q alone cannot support it. It is assumed that the load applied to the fastener 60 (including the weight of the fastener 60) is W3 in (a) and W4 (W4>W3) in (b). Moreover, FIG. 8 is an enlarged view of the dashed-dotted line part in FIG.7(b).

In FIG. 7A, the hook 60 is hooked to the wall surface 11 by the magnetic adsorption force P between the magnet sheets 21,61. That is, the magnet sheet 21 on the wall surface and the magnet sheet 61 on the fastener are in a state in which different polarities (N pole and S pole) are magnetically attached to each other. It is horizontally aligned with the magnetization line 64X. The downward force W3 acting on the fastener 60 is balanced with the static frictional force Q3, and the fastener 60 remains on the wall surface 11 without slipping.

Next, as shown in FIG. 7(b), it is assumed that the load applied to the fastener 60 is slightly larger than the limit of static frictional force.
In this situation, the load W4 applied to the fastener 60 causes the fastener 60 to be pulled down vertically, causing the magnet sheet 21 and the magnet sheet 61 to be displaced relative to each other in the vertical direction. Since the magnetization lines 24X and 64X of the magnet sheets 21 and 61 are shifted in a direction perpendicular to them (that is, in the vertical direction), magnetic poles of the same polarity (N pole 22 and N pole 62, S pole 23 and S pole 63) As a result, in the region A, magnetic repulsive forces f2 and f3 are generated vertically upward and laterally.

On the other hand, a magnetic attraction force P acts between the two magnet sheets 21 and 61 . Further, the magnet sheet 51 of the fastener 60 is pressed toward the wall surface 11 by the rotational moment M2 below it, and this pressing force and the magnetic attraction force overcome the repulsive force f3, and the fastener 60 moves toward the wall surface 11. It stays at

[Third magnetic wall hanging system]
Next, the third magnetic wall hanging system 4 will be described. FIG. 9 is a perspective view showing the third magnetic wall hanging system 3, where (a) is an external view and (b) is a partially exploded view. FIG. 10 is a front view showing the magnet sheets used in the third magnetic wall hanging system 3, (a) showing the magnetic sheet 21A on the side of the magnetic wall 10A, and (b) showing the magnet on the side of the hanging tool 80. A seat 81 is shown.

As shown in FIG. 9, the third magnetic wall hanging system 3 includes a magnetic wall 10A in place of the magnetic wall 10 in the first magnetic wall hanging system 1, and a magnetic wall 10A in place of the fixture 50. A tool 80 is provided. In the magnetic wall hanging system 3, the same components as those of the first magnetic wall hanging system 1 are given the same reference numerals, and the description thereof is omitted.
The magnetic wall 10</b>A includes a magnet sheet 21</b>A instead of the magnet sheet 21 in the magnetic wall 10 . Also, the fastener 80 includes a magnet sheet 81 instead of the magnet sheet 51 of the fastener 50 .

The magnet sheet 21A, as shown in FIG. 10(a), differs from the magnet sheet 21 (see FIG. 2) of the magnetic wall 10 in the first magnetic wall hanging system 1 in the following points. That is, the magnet sheet 21A has the magnetization lines 24AX extending in parallel and in the horizontal direction, but the magnetization lines 24AX are partially curved and bent at specific positions 27 on the way.

As shown in FIG. 10(b), the magnet sheet 81 differs from the magnet sheet 51 (see FIG. 3) of the fastener 50 in the first magnetic wall-mounting system 1 in the following points. That is, in the magnet sheet 81, the magnetization lines extend in parallel and in the horizontal direction, but part of the magnetization lines 84X are curved and bent along the way.
The magnet sheet 81 has a surface that is magnetically attached to the magnet sheet 21A, and has a shape that is a mirror image of the specific position 27 and has opposite N and S poles. 10(b) indicates the magnetic poles when viewed from the back plate 57 side in FIG.

The wall surface magnet sheet 21A has a shape in which a part of the magnetization line is curved and bent at a specific position 27 in the middle of the magnetization line 24AX, and the fastener magnet sheet 81 has a mirror image relationship with the specific position 27 of the magnet sheet 21A. and has a magnetic pole structure in which the N pole and the S pole are reversed. That is, the wall surface magnet sheet 21A has curved and bent portions in the middle of the linearly extending magnetization lines, and the fastener magnet sheet 81 also has curved and bent portions in the middle of the linearly extending magnetization lines. . The wall surface magnet sheet 21A and the fastener magnet sheet 81 have magnetic poles of the same width, and the magnetic poles of different polarities face each other and are magnetically attached.
In this specification, even if a portion of the horizontal line is curved or bent, such as the magnetized line 24AX, it is regarded as being substantially horizontal when viewed as a whole.
A magnet sheet with such a specially shaped magnetizing line can be manufactured by magnetizing using, for example, a magnetizing yoke having a coil groove with a shape corresponding to the specially shaped magnetizing line. . Either one of bending and bending may be used. Also, it can be in one place.

The fastener 80 to which the magnet sheet 81 is attached can be reliably fixed at the specific position 27 without being displaced in the horizontal and vertical directions.

Also, the third magnetic wall hanging system can be configured as shown in FIG. 11, for example. FIG. 11 is a partially exploded perspective view showing a modification of the 43rd magnetic wall hanging system.
In the magnetic wall hanging system shown in FIG. 11, a plurality of magnetic sheets 81X to be attached to the rear surface of the back plate 57 are prepared in advance, and the magnetic sheet 21B is provided with an opening 27B. As the magnet sheet 21B, a general magnet sheet on which parallel magnetization lines are formed on the entire surface is used. The opening 27B is sized to just fit the magnet sheet 81X. By fitting the magnet sheet 81X into the opening 27B and then laminating the wall material film 25, a magnetic wall having the same function as in FIG. 9 can be realized. In this case, a general magnet sheet can be used as a base without using a magnetizer that combines parallel lines and special lines.

In the present invention, it is not excluded that the back yoke is attached to the magnet sheet attached to the fastener. In this case, the magnetic adsorption force is increased, which is preferable.

Examples are described below.

A multi-wall surface with a total thickness of 0.42 mm, in which a mounting sheet containing a surface matte film and a wood grain print layer is laminated on an anisotropic magnetic sheet with a thickness of 0.3 mm that is multipolarized with a magnetization pitch of 3.0 mm. The magnetic surface of the pole-magnetized magnet sheet was magnetically attracted to the magnetic surface of the Tiger Fe board (registered trademark of Yoshino Gypsum Co., Ltd.) employed as the back yoke to form a magnetic wall surface. The tiger Fe board is a board obtained by laminating a soft magnetic layer on one side of a gypsum board.
The magnetic poles appearing on the surface of the magnetic wall surface were elongated in the horizontal direction, and arranged so that N poles and S poles appeared alternately in the vertical direction.

Next, a multipolar magnetized magnet sheet having a thickness of 0.84 mm and a magnetization pitch of 3.0 mm was attached to the fastener and magnetically attracted to the magnetic wall surface.
A vertical downward load was applied to the fastener, and the maximum weight that would not separate or fall from the wall surface was found to be 22.8 gr/cm ² including its own weight.
In addition, the magnetic wall surface was certified as nonflammable in a heat generation test using a cone calorimeter tester.

A magnetic wall surface was formed in the same manner as in Example 1, except that the wall surface multipolar magnetized magnet sheet was changed to a multipolar magnetized magnet sheet having a whiteboard surface and a total thickness of 0.45 mm. The magnetic wall surface was certified as nonflammable in the same combustion test as in Example 1.
In a detachment/drop test in which the same fastener as in Example 1 was magnetically attracted to the magnetic wall surface, the maximum withstand load was 19.1 gr/cm ² .

Magpita board (registered trademark of Nichirei Magnet Co., Ltd.) with a decorative steel plate as a soft magnetic layer is used for the back yoke. When the test was conducted in the same manner as in Example 1 except that the magnetic sheet was changed to .0 mm, the magnetic wall surface was incombustible, and the maximum load capacity of the fastener was 24.5 gr/cm ² . .

[Comparative Example 1]
The wall surface multipolar magnetized magnet sheet of Example 1 was laminated with a mounting sheet containing a surface matte film and a wood grain print layer on an anisotropic magnet sheet with a thickness of 0.75 mm to give a total thickness of 0.87 mm. Other than that, a completely similar wall surface multipolar magnetized magnet sheet was obtained.
Next, the wall surface multipolar magnetized magnet sheet was magnetically attached to the magnetic surface of a Tiger Fe board as a back yoke to form a magnetic wall surface.
The magnetic wall surface had a long burning time and could not be certified as non-flammable.

[Comparative Example 2]
A magnetic wall surface and a fastener exactly the same as in Example 1 were prepared. However, the magnetization lines on the surface of the magnetic wall surface were elongated in the vertical direction, and arranged so that N poles and S poles appeared alternately in the horizontal direction.
Next, a vertical downward load was applied to the fastener, and the maximum weight at which it would not slide down the wall surface or leave or fall off the wall surface was found to be 9.6 gr/cm ² including its own weight. . This withstand load corresponds to the static frictional force, and is less than half that of the present invention (Example 1).

[Comparative Example 3]
When the fastener of Example 3 was magnetically attracted directly to the wall surface of the Magpita board without adopting the wall surface multipolar magnetized sheet, the maximum withstand load of the fastener was 13.2 gr/cm ² .
Although the load capacity is considered to be the static friction force itself, it is significantly smaller than the maximum load capacity of Example 3. In addition, when the number of times of touching by hand increased, such as repeating the test, the size gradually decreased.

Although the embodiments of the present invention have been described above, the embodiments disclosed above are merely examples, and the scope of the present invention is not limited to these embodiments. The scope of the present invention is indicated by the description of the claims, and is intended to include all changes within the meaning and range of equivalents of the claims.

It is effective as a system that can secure nonflammability of the wall surface and can hang articles on the wall surface using magnetic attraction and repulsion.

1 magnetic wall hanging system 2 magnetic wall hanging system 3 magnetic wall hanging system 11 wall surface (magnetic wall surface)
21 magnet sheet (wall magnet sheet)
21A magnet sheet (wall magnet sheet)
22 magnetic pole 23 magnetic pole 24AX magnetized line 24X magnetized line 25 wall material film (mounting sheet)
32 soft magnetic layer (soft magnetic material)
51 magnet sheet (suspension magnet sheet)
54X magnetized line 61 magnet sheet (suspension magnet sheet)
64X magnetized line 81 magnet sheet (suspension magnet sheet)
84X magnetized line

Claims (6)

It has a magnetic wall surface formed by sticking a wall surface magnet sheet on a wall surface forming a substantially vertical plane, and a fastener attached with the fastener magnetic sheet, and the magnetic wall surface is provided with the fastener magnet sheet. In the wall hanging system that is magnetically attracted,
Both the wall surface magnet sheet and the hanging magnet sheet are multipolar magnetized with the same magnetization pitch on the surface,
The wall surface magnet sheet has a thickness of 150 μm to 540 μm including the mounting sheet, and the magnetization line formed by the boundary between any one magnetic pole and the adjacent magnetic pole on the surface of the wall surface magnetic sheet is substantially horizontal. A magnetic wall hanging system, characterized in that: 2. The magnetic wall hanging system according to claim 1, wherein the magnetization pitch between the wall surface magnet sheet and the fastener magnet sheet is 1.0 mm or more and 7.0 mm or less. 3. The magnetic wall hanging system according to claim 1, wherein the wall surface magnet sheet has a soft magnetic board as a back yoke. 4. A magnetic wall hanging system according to any one of claims 1 to 3, wherein the wall magnet sheet is anisotropic. 5. The magnetic wall hanging according to any one of claims 1 to 4, wherein the soft magnetic board is a board obtained by laminating a magnetic layer on one side of a gypsum board, a steel plate, or a steel plate obtained by laminating a mounting sheet or a functional sheet. stop system. In the wall surface magnet sheet, a part of the magnetization line exhibits at least one of curved and bent shapes at a specific position in the middle of the magnetization line. 6. A magnetic wall hanging system according to any one of claims 1 to 5, having a magnetic pole structure in which north and south poles are reversed.

Images