JPH041596Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a magnetic sticker that can be attached to and detached from an automobile body or steel material.

(Prior art) When attaching a mark to an object made of magnetic material,
This is done by providing a sign on the surface of a magnetic rubber plate and magnetically adhering it to the object, but because the adhesion force is small, there is a problem that it is easy to fall off due to the action of external forces such as vibrations. Ta.

In order to solve this problem, it may be possible to use a ferrite magnetic plate as a base and mark the mark on its surface, but if the surface of the object is curved, the mark may fall off easily or In the case of a flat object, the adsorption force is too strong and there is a risk of scratching the painted surface, creating a new problem that the range of use is limited.

(Purpose) The present invention was created in view of these problems, and its purpose is to create a material that can be bent according to the surface shape and has a strong adsorption force that does not cause scratches on the surface. The purpose is to provide a magnetic sticker with

(Example) Therefore, the details of the present invention will be explained below based on the illustrated example.

FIG. 1 shows an embodiment of the present invention, in which the reference numeral 1 is an adsorption part, in which flat permanent magnet pieces 2, 2, 2, etc. made of ferrite or rare earth alloy are connected between adjacent parts. Rotatable metal pins 3, 3, 3...
It is connected to form a ring shape, and one side of the ring is covered with a flexible sheet material 4 such as cloth.
A transparent polymer film 5 is attached to the surface side, and a marking section 6 is formed in a portion surrounded by the suction section 1.

By the way, each of the permanent magnet pieces 2, 2, 2, . It is constructed by drilling a through hole 2c through which it can be inserted, and by chamfering the peripheral edge on the side that will become the object.

In this embodiment, when a sign plate 7 with information written on it is inserted between the transparent film 5 forming the sign part 6 and the sheet material 4, and the sheet material 4 side is brought into contact with the automobile body B (second (Fig.), the suction portion 1 is suctioned to the car body via the sheet material 4 by a strong magnetic attraction force generated between the suction portion 1 and the car body. At this time, depending on the installation method, magnet pieces 2, 2, 2...
may hit the car body from its periphery, but since it is chamfered, it will not scratch the painted surface.

Also, depending on the installation location, there may be a bend in the car body B, but adjacent magnet pieces 2, 2, 2...
rotates around the pin 3 along the curved surface of the car body B, sticks to the entire surface, and exerts an extremely strong suction force. In such a state, even if the sticker is exposed to water due to rain, etc., the transparent film 5 on the surface exhibits a waterproof effect and protects the magnet pieces 2, 2, 2... and the connection pins 3, 3, 3... is prevented from rusting. Furthermore, even if it is moved in an adsorbed state to adjust the mounting position, it will slide on the body B surface via the sheet material 4, so it will not scratch the painted surface.

On the other hand, as mentioned above, the adsorption part 1 is made up of magnet pieces 2, 2, 2, etc. made of ferrite or rare earth alloy, so it sticks to the body with an extremely strong adsorption force, so when removing it, After adding a special operation of weakening the attraction force by applying a reverse magnetic field to several magnet pieces using an electromagnetic coil or the like, part of the attraction part 1 is lifted off from the body B,
Next, by peeling off the seal from here, the body B can be easily removed without damaging it. In addition, magnet pieces 2, 2, 2...
...Since they are connected to each other by metal pins 3, 3, 3..., if someone who does not have a special removal tool attempts to remove it by force by cutting with a general tool such as a metal cutter, Since it is obvious that the person will damage his own car, he will have no choice but to appear at a police station equipped with special tools.

In addition, by coating the magnet piece itself with bright paint such as orange, even if the violator forcibly removes the display board 7, the magnet piece itself will remain, and the color will make it difficult to see from a distance. It will also be recognized that the vehicle is in violation.

In addition, in this embodiment, the magnet pieces 2, 2, 2
... were rotatably joined by pins 3, 3, 3..., but as shown in Fig. 3, magnet pieces 8, 8, 8...
It is clear that the same effect can be obtained by forming a spherical recess 8a and a spherical projection 8b on the adjacent surfaces of the two, rotatably fitting the adjacent parts and joining them in a universal joint type.

FIG. 4 shows a third embodiment of the adsorption unit 1 of the present invention, in which reference numeral 9 denotes flat magnet pieces 10, 10, 10 made of ferrite or rare earth alloy.
A metal plate that connects .
0, 10... Magnet pieces 10, 10, 10... are formed by spot welding S, S, S... between them.
According to this embodiment, the elastic deformation of the metal plate 9 allows the magnet pieces 10, 10, 10... to be shifted relative to each other according to the shape of the object, and the pins can be inserted into the magnet pieces. It is possible to reduce costs by eliminating the need to provide holes and form joints.

In this embodiment, the object to be installed is an automobile body and a parking violation notice sticker was used as an example, but it can also be used for inventory management of steel materials, etc., or for destination markings on trains and buses. For such applications, it is possible to slightly weaken the magnetic force of the magnet pieces, adjust the number of magnet pieces,
If the sheet material 4 is made thick, it can be removed without using a special removal tool.

Further, in the above-described embodiment, the sign board 7 is replaceable, but it is also possible to print a message directly on the sheet material.

(Effects) As explained above, according to the present invention, flat magnet pieces made of ferrite or rare earth alloy are connected in a ring shape, and a sheet material is arranged on the contact surface side of the magnet pieces, and the central part is used as the marking area. As a result, it can be held with an extremely strong magnetic attraction force and be attracted to a magnetic material, and the sheet material on the contact surface can soften the impact of attraction and prevent damage to the object. can. In addition, since the magnet pieces are connected to each other by a metal material so that they can be displaced, it is possible to displace the magnet pieces according to the shape of the object surface to obtain as wide an attraction area as possible and generate a strong attraction force. Not only that, but illegal removal can cause damage to the painted surface, so by applying it to parking tickets, for example, it can have a tremendous psychological effect on violators.

[Brief explanation of drawings]

Fig. 1 is a plan view and a cross-sectional view showing one embodiment of the present invention, Fig. 2 is an explanatory diagram showing the adsorption state of the above sticker, and Figs. 3 and 4 are plan views showing other embodiments of the present invention. and a cross-sectional view. 1... Adsorption part, 2... Magnet piece, 3... Pin, 4
... Sheet material, 5 ... Transparent film, 6 ... Indication part,
8, 9... Magnet piece, 10... Ring-shaped metal plate.

Claims (1)

[Scope of utility model registration request] A plurality of flat magnet pieces are connected in a ring shape with a metal material so as to be able to shift between adjacent pieces to form an adsorption part, and the area surrounded by the magnet pieces is used as a display part, and a flexible sheet is provided on the adsorption surface side. A magnetic sticker made by laminating materials together.