Magnet holder and magnet attraction mechanism

Abstract

To provide a magnet holder and a magnet attraction mechanism which can facilitate detachment of an attraction target object from an attracting body while obtaining a high attraction force when the attracting body and the attraction target object are attracted to each other.SOLUTION: A magnet holder is configured as a magnet holder 110 that attaches an attraction target object to an attraction base made of a magnetic material, and includes a block-shaped magnet 120, a block-shaped first yoke 130 arranged between the magnet and the attraction base, and a second yoke 140 having an L-shaped section that has a front surface portion in contact with a surface on an opposite side of the magnet to the first yoke and a side surface portion that bends from an end side of the front surface portion and extends in a direction approaching the attraction base. A first clearance is formed between the tip of the side surface portion of the second yoke and the attraction base, and a second clearance larger than the first clearance is formed between the side surface portion of the second yoke, and the first side surface of the magnet and the first side surface of the first yoke.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a magnet holder for attaching an object to be attracted to an attraction base made of a magnetic material, and to a magnetic attraction mechanism using the same. [Background technology]

[0002] Conventionally, a wall surface is made of a magnetic material, and a magnet is used as a means for attaching an object to the wall surface. For example, Patent Document 1 discloses a "wall surface attachment system including an object and an attachment unit for attaching the object to a wall surface."

[0003] The wall mounting system of Patent Document 1 is characterized in that "the object includes a metal (or a magnet) attached to its back surface, and the mounting unit includes a magnet (or a metal) attached to its front surface, and is configured so that the metal and the magnet come into contact when the object is aligned to a position for mounting to the mounting unit." According to the wall mounting system of Patent Document 1, it is said that an object such as a deodorizing device can be easily mounted on a wall surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-94052 Summary of the Invention [Problem to be solved by the invention]

[0005] The object, such as the deodorizing device in the wall mounting system of Patent Document 1, is considered to be heavy. This requires a very high adhesive force between the metal and the magnet. However, when performing maintenance or replacing the object, it is necessary to remove it from the wall. In this case, if the adhesive force between the metal and the magnet is high, the object cannot be easily removed, and Patent Document 1 does not mention a method for removing the object. For this reason, Patent Document 1 has room for further improvement in terms of removing the object mounted on the wall.

[0006] In view of these problems, the present invention aims to provide a magnet holder and a magnet attraction mechanism that can obtain a high adsorptive force when the attraction body and the attracted object are attracted to each other, while making it easy to remove the attracted object from the attraction body. [Means for solving the problem]

[0007] In order to solve the above problems, a representative configuration of a magnet holder according to the present invention is a magnet holder for attaching an object to be attracted to an adsorption base made of a magnetic material, comprising a block-shaped magnet, a block-shaped first yoke arranged between the magnet and the adsorption base, and a second yoke with an L-shaped cross section having a front portion in contact with the surface of the magnet opposite the first yoke, and a side portion bent from the end edge of the front portion and extending in a direction approaching the adsorption base, wherein when the surface of the magnet facing the side portion of the second yoke is designated as the first side, the side opposite the first side is designated as the second side, and the surface of the first yoke facing the side portion of the second yoke is designated as the first side, and the side opposite the first side is designated as the second side, a first clearance is formed between the tip of the side portion of the second yoke and the adsorption base, and a second clearance larger than the first clearance is formed between the side portion of the second yoke and the first side of the magnet and the first side of the first yoke.

[0008] In order to solve the above problems, a typical configuration of the magnet adsorption mechanism of the present invention comprises the above magnet holder and a removal tool for removing the magnet holder from the adsorption base, and the removal tool has a tool side yoke with an L-shaped cross section that contacts the front portion of the second yoke and the second side surface of the first yoke, and a third clearance is formed between the tool side yoke and the second side surface of the magnet. Effect of the Invention

[0009] According to the present invention, it is possible to provide a magnet holder and a magnet attraction mechanism that can obtain a high attraction force when the attraction body and the attracted object are attracted to each other, while making it easy to remove the attracted object from the attraction body. [Brief description of the drawings]

[0010] [Figure 1] 3 is a schematic cross-sectional view illustrating the configuration of a magnetic attraction mechanism according to the embodiment. FIG. [Diagram 2] FIG. 2 is an external perspective view of the magnetic attraction mechanism of the embodiment. [Diagram 3] 5A and 5B are diagrams illustrating magnetic flux in a magnet holder according to the present embodiment. [Figure 4] 1 is a diagram showing a state in which the suction mechanism of the present embodiment is used; [Diagram 5] 11A and 11B are diagrams illustrating another example of the attachment / detachment tool. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific values ​​shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are given the same reference numerals to avoid repeated explanations, and elements not directly related to the present invention are not shown.

[0012] Fig. 1 is a schematic cross-sectional view illustrating the configuration of a magnetic attraction mechanism according to the present embodiment. Fig. 2 is a perspective view illustrating the magnetic attraction mechanism according to the present embodiment. In this embodiment, the magnetic attraction mechanism will be described, and a magnet holder, which is a component thereof, will also be described in detail.

[0013] As shown in Figs. 1 and 2, the magnet attraction mechanism of this embodiment (hereinafter referred to as the attraction mechanism 100) includes a magnet holder 110 and a detachment tool 150. In this embodiment, a panel 104 (see Fig. 2) is exemplified as an object to be attracted, and a configuration in which the panel 104 is attached to the attraction base 102 is exemplified, but the present invention is not limited to this. Any object or device other than the panel 104 may be the object to be attracted as long as it can be held by the magnet holder 110. The attraction base 102 is assumed to be, for example, a structure such as a wall, pillar, ceiling, partition, or frame of a building. If the wall or the like is not magnetic, a magnetic material such as an iron plate can be attached to the attraction base.

[0014] The magnet holder 110 is a device for attaching the panel 104 to the attraction base 102 made of a magnetic material. The magnet holder 110 includes a block-shaped magnet 120, a first yoke 130, and a second yoke 140.

[0015] For ease of explanation, the surface of the magnet 120 that contacts the first yoke 130 will be referred to as the back surface 120b, and the surface opposite the back surface 120b will be referred to as the front surface 120a. Furthermore, of the multiple side surfaces of the magnet 120, the surface that faces the side surface portion 144 of the second yoke 140 will be referred to as the first side surface 120c, and the side surface opposite the first side surface 120c will be referred to as the second side surface 120d.

[0016] The first yoke 130 is block-shaped and is disposed between the magnet 120 and the adsorption base 102 in the attachment / detachment direction. Hereinafter, of the first yoke 130, a surface facing the side surface portion 144 of the second yoke 140 will be referred to as a first side surface 130c, and a side surface opposite to the first side surface 130c will be referred to as a second side surface 130d.

[0017] The second yoke 140 has an L-shaped cross section and is made up of a front portion 142 and a side portion 144. The front portion 142 is a portion that contacts a surface 120a, which is the surface of the magnet 120 opposite to the first yoke 130. The side portion 144 is a portion that bends from an end edge of the front portion 142 and extends in a direction approaching the adsorption base 102.

[0018] The attachment / detachment tool 150 is a tool for removing the magnet holder 110 from the attraction base 102. As shown in FIG.

[0019] The tool side yoke 160 has an L-shaped cross section and is composed of an abutting portion 162 and an extending portion 164. The abutting portion 162 is a portion that contacts the front surface portion 142 of the second yoke 140. The extending portion 164 is a portion that bends from an end edge of the abutting portion 162 and extends in a direction away from the handle 170, and contacts the second side surface 130d of the first yoke 130.

[0020] As shown in Fig. 2, the tool side yokes 160 are disposed on both ends of the handle 170. However, the number of tool side yokes 160 relative to the handle 170 shown in Fig. 2 is merely an example, and the number may be changed as appropriate.

[0021] Fig. 3 is a diagram for explaining the magnetic path of the magnet holder 110 of this embodiment. Fig. 3(a) is a diagram for illustrating the magnetic flux of the magnet holder 110 in a state where the magnet holder 110 is attracted to the attraction base 102 and the detachment tool 150 is not attached. Fig. 3(b) is a diagram for explaining the magnetic flux of the magnet holder 110 in a state where the detachment tool 150 is attached.

[0022] As a feature of the magnet holder 110 of this embodiment shown in FIG. 1, a first clearance CL1 is formed between the tip of the side portion 144 of the second yoke 140 and the adsorption base 102. A second clearance CL2 larger than the first clearance CL1 is formed between the side portion 144 of the second yoke 140 and the first side surface 120c of the magnet 120 and the first side surface 130c of the first yoke 130. Furthermore, as shown in FIG. 3(b), a third clearance CL3 is formed between the extension portion 164 of the tool side yoke 160 and the second side surface 120d of the magnet 120. The spaces of these clearances CL1, CL2, and CL3 are filled with resin 124 (non-magnetic material).

[0023] As shown in FIG. 3(a), when the magnet holder 110 is attached to the attraction base 102 and the attachment / detachment tool 150 is not attached, a magnetic flux M1 is generated that passes from the magnet 120 through the second yoke 140, the attraction base 102, and the first yoke 130 and returns to the magnet 120. In particular, in this embodiment, a second clearance CL2 larger than the first clearance CL1 is formed. Therefore, the magnetic flux that passes through the second yoke 140 passes through the attraction base 102 more easily than the first yoke 130 and the magnet 120. In other words, the clearances CL1 and CL2 prevent the generation of magnetic flux that does not pass through the attraction base 102, and a high attraction force (for example, 24 N) between the magnet holder 110 and the attraction base 102 can be ensured.

[0024] 3(b), when the attachment / detachment tool 150 is attached, the abutment portion 162 of the tool side yoke 160 and the front surface portion 142 of the second yoke 140 abut against each other. Also, the extension portion 164 of the tool side yoke 160 and the second side surface 130d of the first yoke 130 abut against each other. Therefore, the magnetic flux that flows from the magnet 120 to the second yoke 140 flows more easily through the tool side yoke 160 than through the first clearance CL1. As a result, the magnetic flux M1 that passes through the attraction base 102 is reduced, and the attraction force between the magnet holder 110 and the attraction base 102 is reduced (for example, 4 N).

[0025] On the other hand, in the tool side yoke 160, a magnetic flux M2 is generated in which the magnetic flux that has passed from the magnet 120 through the second yoke 140 enters the tool side yoke 160 and returns to the magnet 120 through the first yoke 130. Therefore, a high attractive force (e.g., 66 N) is generated between the magnet holder 110 and the tool side yoke 160. In other words, the magnetic path is switched from the path of the magnetic flux M1 to the path of the magnetic flux M2.

[0026] Particularly in this embodiment, a third clearance CL3 is formed between the front surface 142 of the second yoke 140, the magnet 120, and the extension 164. If the third clearance CL3 was not provided, magnetic flux would flow from the tip of the front surface 142 of the second yoke 140 to the extension 164 of the tool side yoke 160. However, since the third clearance CL3 is provided, magnetic flux can pass from the front surface 142 of the second yoke 140 to the abutment portion 162 of the tool side yoke 160. This makes it possible to obtain a higher adsorptive force between the magnet holder 110 and the tool side yoke 160 in the direction in which the handle 170 is pulled (in the direction in which the panel 104 is removed).

[0027] As described above, according to the magnet holder 110 of this embodiment and the attraction mechanism 100 including the same, a high attraction force can be ensured when the magnet holder 110 is attracted to the attraction base 102. When the attachment / detachment tool 150 is attached to the magnet holder 110, a magnetic path is switched, and the attraction force between the magnet holder 110 and the tool side yoke 160 exceeds the attraction force between the magnet holder 110 and the attraction base 102. This makes it possible to easily remove the magnet holder 110, and thus the panel 104 held by it, from the attraction base 102.

[0028] 4 is a diagram showing a state in which the suction mechanism 100 of this embodiment is used. Fig. 4(a) shows a state in which the panel 104 is previously suctioned to the suction base 102 by the magnet holder 110. When the panel 104 is detached using the attachment / detachment tool 150, first, as shown in Fig. 4(a), the tool side yoke 160 of the handle 170 is aligned with the magnet holder 110 holding the panel 104.

[0029] Next, as shown in Fig. 4(b), the handle 170 is moved to bring the tool side yoke 160 into contact with the magnet holder 110. Then, as shown in Fig. 4(c), the handle 170 is moved in a direction away from the suction base 102, whereby the magnet holder 110 that was attached to the suction base 102 is attached to the tool side yoke 160, and the magnet holder 110 and therefore the panel 104 are easily and simply removed from the suction base 102.

[0030] Fig. 5 is a diagram for explaining another example of the attachment / detachment tool. This is an example in which one handle 170a is provided for each magnet holder 110. Among the components of the attachment / detachment tool 150a shown in Fig. 5, those that are common to the components shown in Fig. 1 and Fig. 2 are given the same reference numerals and description thereof will be omitted.

[0031] In the removal / attachment tool 150 shown in Fig. 2, the handle 170 is bar-shaped with curved ends, and the tool side yoke 160 is disposed at each end of the bar. In contrast, in the removal / attachment tool 150a shown in Fig. 5, the handle 170a is T-shaped, and the tool side yoke 160 is connected to a vertical part 172a of the T by a connecting shaft 174a. Even with this configuration, it is possible to obtain the same effect as the removal / attachment tool 150 shown in Fig. 2.

[0032] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an example. It is clear that a person skilled in the art can think of various modified or altered examples within the scope of the claims, and it is understood that such examples also naturally belong to the technical scope of the present invention. [Industrial Applicability]

[0033] The present invention can be utilized as a magnet holder for mounting an object to be attracted to an attraction base made of a magnetic material, and as a magnet attraction mechanism using the same. [Explanation of symbols]

[0034] CL1...first clearance, CL2...second clearance, CL3...third clearance, 100...suction mechanism, 102...suction base, 104...panel, 110...magnet holder, 120...magnet, 120a...front surface, 120b...rear surface, 120c...first side surface, 120d...second side surface, 124...resin, 130...first yoke, 130c...first side surface, 130d...second side surface, 140...second yoke, 142...front portion, 144...side portion, 150...removal tool, 150a...removal tool, 160...tool side yoke, 162...contact portion, 164...extension portion, 170...handle, 170a...handle, 172a...vertical portion, 174a...connecting shaft

Claims

1. A magnet holder for attaching an object to be attracted to an attraction base made of a magnetic material, A block magnet, a block-shaped first yoke disposed between the magnet and the attraction base; a second yoke having an L-shaped cross section and including a front surface portion in contact with a surface of the magnet opposite to the first yoke and a side surface portion bent from an end of the front surface portion and extending in a direction approaching the attraction base, A surface of the magnet that faces a side portion of the second yoke is defined as a first side surface, and a side surface opposite to the first side surface is defined as a second side surface, When a surface of the first yoke that faces a side portion of the second yoke is defined as a first side surface and a side surface opposite to the first side surface is defined as a second side surface, a first clearance is formed between a tip of a side surface of the second yoke and the suction base, A magnet holder, characterized in that a second clearance larger than the first clearance is formed between a side portion of the second yoke and a first side surface of the magnet and a first side surface of the first yoke.

2. The magnet holder according to claim 1 ; a detachment tool for detaching the magnet holder from the suction base, the mounting / removal tool has a tool side yoke having an L-shaped cross section that contacts a front surface of the second yoke and a second side surface of the first yoke, A magnetic attraction mechanism, characterized in that a third clearance is formed between the tool side yoke and the second side surface of the magnet.

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