JPH0621483U - Magnetic adsorption tool - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a magnetic attraction tool using a magnet sheet capable of increasing the holding force. In a magnet hook (10) that uses a magnet to attract a member to be attracted to hold the member to which the magnet is attached at the attracting position of the member to be attracted, magnetic powder is retained in a synthetic resin material having elasticity. A non-slip sheet 3 having a high frictional resistance and formed in a smaller shape than the magnet sheet 2 is formed on the surface of the magnet sheet 2 facing the attracted member 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention uses a magnet to magnetically attract to a wall surface of a magnetic material such as a door, a cabinet made of steel, a desk, a housing of an electric appliance, and the like, and to hold the member on the wall and the member attached with the magnet. Regarding the suction tool.

[0002]

[Prior art]

 A so-called magnet hook is well known as a magnetic attraction tool that uses a magnet to attract a wall of a magnetic body to hold a member to which the magnet is attached. The magnet hook is, for example, provided with a hook on the lower part of the housing made of synthetic resin, and the magnet provided on the back surface of the housing can be attracted to the wall surface of the magnetic body so that the article can be hung on the hook. There is.

By the way, there are two types of magnet hooks of this type: a type in which a magnet portion has a holding force by combining a magnet and a yoke, and a type in which a magnet sheet is used to obtain a holding force. is there. In these magnet hooks, generally, a combination type of a magnet and a yoke has a higher holding force than that using a magnet sheet, and is therefore widely used. However, since the yoke portion is iron, the attracted surface with which the yoke comes into contact may be scratched when the yoke is attached or detached. Therefore, in order to prevent this scratch, there is also provided a magnet that abuts the attracted surface or a surface of the yoke that is attached to the surface of the yoke with a scratch-prevention tape, but this scratch-prevention tape reduces the holding force of the magnet. However, the holding force will decrease due to the frictional resistance of the tape surface.

On the other hand, a magnet sheet using a magnet sheet cannot generally obtain a high holding force, but if it is cut and used as it is, the attracted surface is hardly scratched. Therefore, those using a magnetic sheet were used only for those that want to avoid scratching the surface to be attracted even if the holding force is small.

[0005]

[Problems to be solved by the device]

 However, since the holding power is small, there is a problem that the application of the magnetic attraction tool using the magnetic sheet is limited, such as holding a lightweight article such as a memo.

The present invention has been made in view of such a background, and an object thereof is to provide a magnetic attraction tool using a magnet sheet capable of increasing a holding force.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention relates to a magnetic attraction tool for attracting a member to be attracted by a magnet and holding it at a desired attraction position, wherein the magnet is a magnet in which magnetic powder is held in a rubber or synthetic resin material. It is characterized in that it is composed of a sheet, and a non-slip material having a high frictional resistance and formed in a smaller shape than the magnet sheet is provided on the surface of the magnet sheet facing the attracted member.

[0008]

[Action]

 In the above-mentioned means, the outer peripheral portion of the magnet sheet, which is not covered with the anti-slip material and is exposed, acts as a yoke, exerts a strong magnetic attraction force, and can be reliably held on the attracted surface. When a force is applied in the direction of deviation while being held, the friction force of the anti-slip material suppresses the deviation, and a holding force that is greater than the holding force that originally acts between the magnet sheet and the magnetic body can be obtained.

[0009]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

In this embodiment, a magnetic attraction tool is applied to a magnet hook. The magnet hook 10 is a hook body 1 made of a synthetic resin molded product as shown in the perspective view of FIG. 1 and the rear view of FIG. The magnetic sheet 2 is attached to the back surface of the hook body 1, and the non-slip sheet 3 is attached to the surface of the magnet sheet 2 opposite to the hook body side. A hook 5 is integrally formed on the lower front portion of the hook body 1.

As the magnet sheet 2, a well-known magnet sheet formed by mixing magnetic powder with rubber or synthetic resin is used. The magnet sheet 2 is used by being cut to a size slightly smaller than the hook body 1 as shown in the figure, but it goes without saying that the size may be the same as that of the hook body 1.

The non-slip sheet 3 is made of, for example, a urethane-based synthetic resin sheet, has a thickness of 0.3 to 0.4 mm, and has a large surface friction coefficient and is formed in a size smaller than that of the magnet sheet 2. The magnetic sheet 2 is attached so that the outer peripheral portion thereof is exposed. The reason why it is formed in such a small size is that the outer edge portion 4 of the magnet sheet 2 has an effect like a yoke.

A magnet sheet 2 having a thickness of 3 mm and a diameter of 40 mm and a surface gauss of 380 to 400 gauss is adhered to the hook body 1, and a non-slip sheet 3 having a thickness of 0.35 mm and a diameter of 30 mm is adhered to the magnet. When the hook was constructed, the weight of 600 g could be retained. On the other hand, a hook in which the anti-slip sheet 3 is removed and only the magnet sheet 2 is adhered can only hold a weight of about 200 to 250 g, and by providing the anti-slip sheet 3, its holding force is 2.4 to. It can be seen that it could be increased 3.0 times.

On the other hand, if it is attempted to use a magnet sheet 2 having a strong magnetic force, the magnet sheet 2 inevitably becomes thick. Therefore, when the weight is intensively applied to the hook 5, a force that separates from the attracted surface 7 is generated in the upper part of the hook main body 1 and acts to peel off the magnetic sheet 2, so that the holding force is weakened. I understood. It has been found that this is particularly remarkable when the magnet sheet 2 is slightly smaller than the hook body 1 or when the magnet sheet 2 has elasticity, as in the above-described embodiment.

Therefore, in this embodiment, a protrusion 6 is provided on the back surface of the hook body 1 at a position corresponding to the hook 5 as can be seen from the explanatory view showing the usage state of FIG. The projection height of the projection 6 is set so that it at least comes into contact with the non-slip sheet 3 when it comes into close contact with the attracted surface 7, or is slightly retracted.

As shown in FIG. 3, the magnet hook 10 configured as described above has the non-slip sheet 3 opposed to the attracted surface 7 and attracted by the magnet sheet 2, and the object is hung on the hook 5. In this case, a moment with the tip of the projection 6 as a fulcrum is applied to the hook body 1 from the hanging object. However, as a matter of course, a reaction force is applied to the protrusion 6 from the attracted surface 7, and the hook body 1 does not easily tilt. As a result, the attractive force of the magnet sheet 2 acts evenly, and the frictional force of the non-slip sheet 3 acts on the front surface of the sheet 3, so that the holding force of the magnet hook 10 itself is also greater than when the protrusion 6 is not present. To improve dramatically.

By the way, holding when the protrusion 6 is provided on the magnet hook 10 in which the non-slip sheet 3 having a thickness of 0.35 mm and a diameter of 30 mm is attached to the above-mentioned magnet sheet 2 having a thickness of 3 mm and a diameter of 40 mm The force can hold a weight of 1500 to 1800 kg, and by providing the projection 6, the holding force is increased by 2.5 to 3.0 times as compared with the case where the protrusion 6 is not provided.

In the above-described embodiment, when the hook body 1 does not tilt due to the moment, a load is applied in parallel to the attracted surface 7, so the holding force can be assisted by the frictional force of the anti-slip sheet 3. Needless to say, this increases the holding force as compared with the case where the non-slip sheet 3 is not used. Instead of sticking the anti-slip sheet 3, a liquid anti-slip agent may be applied.

In addition, in this embodiment, the present invention is applied to the magnet hook 10, but the present invention is also provided with a magnetic material such as a basket, an umbrella stand, a simple shelf, and an accessory case. It can be applied to anything that is adsorbed to a surface and fixed or held.

[0020]

[Effect of device]

 As is clear from the above description, in a magnetic attraction tool that uses a magnet to attract a member to which it is attached to hold the member to which the magnet is attached at the attraction position of the member to be attached, A non-slip sheet with a high friction resistance formed in a shape smaller than this magnet sheet is formed on the surface of the magnet sheet that faces the attracted member. According to the present invention provided, it is possible to prevent the slippage at the time of adsorption by the frictional force of the anti-slip sheet and increase the holding force.

[Brief description of drawings]

FIG. 1 is a perspective view of a magnet hook according to an embodiment.

FIG. 2 is a rear view of the magnet hook according to the embodiment.

FIG. 3 is a side view showing a usage state of the magnet hook according to the embodiment.

[Explanation of symbols]

 1 Hook Main Body 2 Magnet Sheet 3 Non-Slip Sheet 4 Outer Edge 5 Hook 6 Protrusion 7 Adsorbed Surface 10 Magnet Stick

Claims (1)

[Scope of utility model registration request] 1. A magnetic attraction tool for attracting a member to be attracted by a magnet and holding the attracted member at a desired attraction position, wherein the magnet is composed of a magnet sheet having magnetic powder held in a rubber or a synthetic resin material. A magnetic attraction tool, characterized in that an anti-slip material formed in a shape smaller than a sheet and having a high frictional resistance is provided on a surface of the magnet sheet facing the attracted member.