Adsorption magnetic device

Abstract

To provide a fixture capable of attaching various devices to a panel made of a magnetic material without using clamping tools such as adhesives, screws, or clips.SOLUTION: In order to prevent a permanent magnet 21 from peeling off due to oblique external force, a neodymium permanent magnet 21 having the yoke 23 is coated with a coating material 24 having a large coefficient of friction in order to combine with a suction cup part 28, the covering part 24 is extended to form a suction cup shape 28, and an adsorptive magnet device 20 is provided by using magnetic attraction force of the permanent magnet and vacuum suction force of the suction cup. It is possible to facilitate release by not only increasing the magnetic attraction force of the permanent magnet and increasing the near-vacuum suction force of the suction cup part 28, but also providing a protrusion 27 on the suction cup part 28.SELECTED DRAWING: Figure 2A

Description

[Technical Field]

[0001] The present invention relates to an attraction magnet device, and more particularly to an attraction magnet device that has the function of attaching various devices such as cameras, lights, smartphones, etc. to magnetic and non-magnetic panels. [Background technology]

[0002] For example, when attaching hooks or shelves to a magnetic panel 1 such as a metal wall, it is desirable to be able to easily change the attachment position without damaging the metal wall by drilling tapped holes, etc. For this reason, attachment devices that utilize the attractive force of permanent magnets are often used.

[0003] Currently, neodymium permanent magnets have been developed as permanent magnets that exert a strong magnetic force. Figure 1 shows a magnetic hook that can be attached to a magnetic panel by combining a magnet 2 with a hook 3. Although the vertical adhesive force A to the magnetic panel is strong, when a bag or clothing (not shown) hung on the hook 3 is pulled and a diagonal load B is applied, it tends to come off with the fulcrum 4.

[0004] Mounting fixtures that use suction cups instead of the permanent magnets do not have the problems mentioned above, but the non-magnetic panel must be flat and smooth, and the structure must be such that the vacuum inside the suction cup can be maintained for a long time. On the other hand, if the adhesive strength of the suction cup is increased, there is a risk that the mounting fixture will become difficult to remove when you want to change its position. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2020-195566 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention was devised in view of the above points, and aims to provide a mounting fixture that can be used to mount various devices to panels made of magnetic material without using adhesives, screws, clips, or other clamping devices. Another aim of the present invention is to provide a mounting device that can mount various devices by increasing the adhesive force to magnetic panels.

[0007] In relation to the above-mentioned problem, the present invention aims to solve the problems of the above-mentioned attraction magnet device and realize a device for attaching various mounting devices to a magnetic panel by taking one of the following points as a more complementary detailed problem. First, it increases the mounting strength of the mounting device attached to the magnetic panel. Second, it has the ability to attach various devices such as cameras, lights, and smartphones. Third, it has a mechanism that allows the use of a wide range of conventional camera accessories as mounting fixtures. Fourth, a mechanism was created that allows for easy removal of the magnetic attraction device, which has increased mounting strength. [Means for solving the problem]

[0008] In order to solve the above problems, the inventors came up with the idea of ​​organically combining a permanent magnet and a suction cup to increase the attractive force while maintaining a certain level of attachment to various devices. That is, to prevent the permanent magnet from peeling off due to an oblique external force, the inventors came up with the idea that if a neodymium permanent magnet, for example, with a yoke and a suction cup portion is combined with the suction cup portion to cover it with a coating material with a large coefficient of friction, and the coating portion is extended to form a suction cup, and an attractive magnet device is created using the magnetic attractive force of the permanent magnet and the vacuum attractive force of the suction cup, the magnetic attractive force of the permanent magnet will be increased, and the approximate vacuum attractive force of the suction cup portion will be increased, and further, by providing a protrusion on the suction cup portion, release will be made easier.

[0009] Therefore, in order to solve the above problems, the attraction magnet device according to a first aspect of the present invention comprises a permanent magnet having a first magnet surface facing a first mounting surface, with north and / or south poles arranged in a specific configuration and with a recess formed on the side of the first magnet surface; a coating material covering the permanent magnet over almost the entire surface including at least the first magnet surface; a suction cup-shaped portion formed by extending the coating material from the periphery of the permanent magnet into a suction cup shape of approximately the same length; and an equipment mounting portion having an edge on one side that fits into the recess of the permanent magnet and allowing equipment to be mounted on the other side opposite the one side, and is characterized in that it is possible to attract the permanent magnet to a panel made of a magnetic material by the magnetic force of the permanent magnet and the approximate vacuum suction force of the suction cup-shaped portion.

[0010] As a second aspect of the invention, in the first aspect, the permanent magnet may be a neodymium magnet.

[0011] As a third aspect of the present invention, in the first or second aspect, the permanent magnet may have a magnetic flux adjustment section. Furthermore, this magnetic flux adjustment section, i.e., the so-called yoke section, may be integrally formed and coated with a coating material having a large coefficient of friction.

[0012] As a fourth aspect of the invention, in the first aspect, a quarter-inch male or female screw may be used as the attachment portion for various devices. This allows the device to function as a mechanical part to which various devices can be attached.

[0013] As a fifth aspect of the invention, in the first aspect, a protrusion for releasing the airtight seal inside the suction cup may be provided on the outside of the suction cup-shaped portion. By providing the protrusion for releasing the airtight seal, it becomes easy to release the airtight seal and remove the device.

[0014] As a sixth aspect of the invention, in the first aspect, the inner surface of the suction cup-shaped portion may have linear protrusions to maintain airtightness. Alternatively, the magnetic device for magnetic panels according to the first aspect may have a plurality of circular protrusions added to the inside of the suction cup portion. This makes it possible to further ensure the airtightness of the suction cup portion in the first aspect. [Effects of the Invention]

[0015] According to each aspect of the present invention, the combination of a powerful magnet and an airtight suction cup increases the adhesion to a magnetic panel, making it possible to hold various heavier devices. In addition, the combination with the suction cup prevents the permanent magnet from peeling off due to an oblique load.

[0016] Furthermore, according to each aspect of the present invention, by providing an airtight vent on the outside of the suction cup portion, the airtightness of the suction cup portion can be released, and the attracting magnet device can be easily removed.

[0017] Furthermore, according to each aspect of the present invention, by using a quarter-inch pitch female or male screw as the attachment portion for various devices, it is possible to utilize a wide variety of camera devices and adapters. [Brief explanation of the drawings]

[0018] [Figure 1] 10A and 10B are explanatory diagrams illustrating external forces acting on the magnet mounting device. [Figure 2A] 1 is a configuration diagram of an attracting magnet device for magnetic bodies according to a first embodiment of the present invention. [Figure 2B] 1 is a cross-sectional view of an attracting magnet device for magnetic bodies according to a first embodiment of the present invention. [Figure 3] FIG. 10 is a conceptual perspective view for explaining an application example of an attracting magnet device for magnetic bodies according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, an attraction magnet device according to an embodiment of the present invention will be described with reference to the drawings.

[0020] Fig. 2A is a conceptual perspective view showing the schematic configuration of an attraction magnet device for magnetic material 20 according to one embodiment of the present invention, and Fig. 2B is a longitudinal cross-sectional view of the attraction magnet device 20 shown in Fig. 2A. As shown in these figures, the attraction magnet device for magnetic material 20 according to one embodiment of the present invention is configured by covering a permanent magnet 22 and a yoke 23 with a coating material 24 having a high friction coefficient, and including a magnet suction cup part 21 in which the coating material 24 is extended to a suction cup-shaped part 28, a magnet fixing cylinder 25, and an equipment mounting part 32.

[0021] The magnetic arrangement of the permanent magnet 22 may be, for example, such that the side facing the attracted surface WL is the north or south pole and the side facing the attracted surface WL is the south or north pole, or such that the upper side as viewed from the mounting surface is the north or south pole and the lower side is the south or north pole. Furthermore, such an arrangement may be such that the north and south poles are alternately arranged at regular intervals as viewed from the mounting surface, i.e., north, south, north, south, .... Furthermore, although the device mounting portion 32 is depicted as a screw-like protrusion in this example, as shown in the figure, various shaped tools and materials, such as a hook-shaped tool as shown in FIG. 1, can be formed / connected to the end of the device mounting portion 32 (the side facing the magnet 22) (not shown), and these are also encompassed by the technical concept of the present application.

[0022] As shown in Figure 2B, the outer periphery of the coating material 24 that covers the permanent magnet 22 and yoke 23 is extended to form a suction cup-shaped portion 28, and when its back surface (the surface behind the surface on which the permanent magnet 22 is disposed) is pressed against the surface WL to be attracted, the air between the back surface of the suction cup-shaped portion 28 and the surface to be attracted becomes a substantially vacuum state, thereby attracting the two. In this case, by widening the base of the suction cup-shaped portion 28, it is possible to achieve an application example in which the volume of the vacuum attraction portion is expanded, as shown in Figure 2B, for example. As such, various variations in the shape and structure of the vacuum attraction portion are conceivable, and all of these are within the inventive concept of the present invention.

[0023] In both figures, the permanent magnet 22 may be any of neodymium magnets, ferrite magnets, alnico magnets, samarium-cobalt magnets, etc., but from the viewpoint of adhesive force, neodymium magnets are most suitable. The covering member 24 (which may be formed integrally with the suction cup portion 28) is preferably made of a material with a high coefficient of friction, preferably a soft material; specifically, silicone rubber is preferred, but elastomers, other resins, etc. may also be used. The three-dimensional shape or cross-sectional shape of the permanent magnet 22 may be any suitable shape, such as cylindrical, rectangular (cross-sectional), or polygonal (cross-sectional), etc.

[0024] On the other hand, if the vacuum suction force is increased, it may be difficult to remove the adhesive when changing the mounting position. In this case, protrusions 27 can be provided on the suction cup-shaped portion 28. By providing protrusions 27, the vacuum can be released by rolling up the protrusions with a fingertip, thereby reducing the suction force and making it easier to remove the adhesive. The shape of the protrusions, such as protrusions 27, may be a simple rod-like protrusion, or may have a recessed shape that allows a person's fingernail to catch on. Various other shapes are possible, and all of these are within the inventive concept of the present invention.

[0025] In the above, the suction cup-shaped portion 28 is preferably formed to have a conical cross section with a thickness that gradually decreases toward the protruding end, which is approximately pointed, thereby increasing the suction compatibility with the surface to be suctioned. Also, a plurality of linear protrusions 26 are preferably provided on the inside (the back surface) of the suction cup-shaped portion 28 to maintain an airtight seal within the suction cup.

[0026] The magnet fixing cylinder 25 is roughly cylindrical and has a rim 33 that fits into the recess 29 of the permanent magnet 22. When the magnet fixing cylinder 25 is inserted from the bottom of the permanent magnet 22 as shown in FIG. 2B, the rim 33 fits properly into the recess 29, and the upper end of the magnet fixing cylinder 25 becomes roughly flush with the surface of the permanent magnet 22 and the yoke 23 that are coated with the coating material 24 having a large coefficient of friction.

[0027] The cylindrical magnet fixing tube 25 has a threaded hole 30 (see 25 in FIG. 2B) that does not penetrate through the inner wall surface of the cylindrical portion 25A facing the edge 33. The device mounting portion 32 is screwed into the threads that are threaded into the inner wall surface of this threaded hole 30, thereby connecting the magnet suction cup portion 21 and the device mounting portion 32. Due to the above structure, the inside of the suction cup portion is kept airtight, and as a result, the attractive force between the magnetic device for attracting magnetic material 20 and the attracted surface WL is maintained for a relatively long period of time.

[0028] In FIG. 2B, a male-to-male adapter is used as the device mounting portion 32, but a male-to-female adapter (not shown) may also be used. Furthermore, if the screw is, for example, a quarter-inch screw, it will be possible to utilize a wide variety of camera adapters. It is obvious that not only can various camera devices be attached, but also furniture such as hooks and handles, hanging devices, or small camera platform heads can be attached. Many other variations are conceivable, and all of these are within the inventive concept of the present invention.

[0029] In the above explanation, a cylindrical magnet has been used as an example of the magnet built into the part where the suction cup part 28 of the magnetic body attraction magnet device 20 attaches, but it is not limited to a cylindrical shape and can also be rectangular, polygonal, etc., and ultimately there is no limit to the shape. Also, in the above example, a yoke is attached to the magnet to prevent magnetic flux leakage, and the magnet and yoke are entirely coated, but it is obvious that the entire magnet can be coated with the coating material 24 when no yoke is provided. Furthermore, various methods can be considered for the configuration of the vacuum suction part in the above embodiment and the mounting part in other embodiments, but all configurations that perform similar functions are included in the inventive concept of the present invention.

[0030] Furthermore, although the above description has been given using an example in which the technical concept of the present invention is realized as an attraction magnet device attached to a magnetic panel, it is obvious that it can also be applied to attachment to the body of a car or a metal ceiling. Furthermore, by attaching multiple attraction magnet devices of the present invention to a circuit board as shown in Figure 3, it becomes possible to attach even larger and heavier equipment to the circuit board. This is because using N attraction magnet devices can be expected to produce N times the attraction force. [Industrial Applicability]

[0031] According to each aspect of the present invention and the above-described embodiments, by combining a permanent magnet with an airtight suction cup, it is possible to realize an attraction magnet device that is resistant to falling off even when an oblique force is applied. In addition, it is possible to realize an attraction magnet device that is resistant to slipping off and shifting, and whose mounting position can be freely changed later. Furthermore, the attraction magnet devices according to each aspect of the present invention and the above-described embodiments are easy to install, and by mounting multiple units on a mounting board as shown in Figure 3, the mounting suction force can be increased, making it possible to mount heavier equipment.

[0032] Furthermore, the application range of the attraction magnet device according to each aspect of the present invention and the above-described embodiments is wide, and since the magnet part has a rust-proof structure due to the coating material on the magnet, which is relatively prone to rust, it can be used not only in general offices and homes, but also in water environments outside buildings, such as doors, windows, walls, bathrooms, and aquariums. Furthermore, it has the potential for a wide range of applications in various industries, including general furniture accessories, the construction industry, and the interior industry, such as for use in decorative items. [Explanation of symbols]

[0033] 1...conventional magnetic hook, 2...permanent magnet, 3...hook, 20...attraction magnet device, 21...magnetic attraction portion, 22...permanent magnet, 23...yoke, 24...covering material, 25...magnet fixing tube, 26...linear protrusion, 27...protrusion, 28...suction cup-shaped portion, 29...recess, 30...screw hole, 32...device mounting portion, 33...edge

Claims

1. a permanent magnet having a first magnet surface facing a first mounting surface, with north and / or south poles arranged in a specific configuration, and a recess formed on the first magnet surface side; a coating material that coats the permanent magnet over substantially the entire surface including at least the first magnet surface; a suction cup-shaped portion formed by extending the outer periphery of the coating material into a suction cup shape with a wider base than the periphery of the permanent magnet; a magnetic suction cup portion having a magnet fixing cylinder having a rim on one side that fits into the recess of the permanent magnet, and a cylindrical portion on the other side opposite to the one side that allows an equipment mounting portion for mounting an equipment to be attached; An attraction magnet device comprising: The cylindrical portion has an inner wall surface on which a screw hole that does not penetrate through is formed, and an inner wall surface of the screw hole has a screw thread on which the device mounting portion can be screwed, The magnetic suction cup portion and the equipment mounting portion are connected by screwing the equipment mounting portion onto the screw thread, and the magnetic force of the permanent magnet and the approximate vacuum suction force of the suction cup-shaped portion can be used to attach the device to a panel made of a magnetic material.

2. 2. An attraction magnet device according to claim 1, wherein the permanent magnet is a neodymium magnet.

3. 3. The magnetic attraction device according to claim 1, wherein the permanent magnet has a magnetic flux adjusting section.

4. 2. The magnetic attraction device according to claim 1, wherein the device mounting portion is a quarter-inch male or female screw.

5. 2. The magnetic attraction device according to claim 1, wherein the suction cup-shaped portion has a protrusion on the outside thereof for releasing the airtight seal within the suction cup.

6. 2. The magnetic attraction device according to claim 1, wherein the inner surface of the suction cup-shaped portion has linear protrusions for maintaining airtightness.

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