JP3087996U - Magnetic picture board - Google Patents

Abstract

(57) [Problem] To provide a magnetic plate which can be easily erased with one hand without having to hold the magnetic plate when erasing a display, and is suitable for hanging on a wall. A slider (20) is provided on the back side of a magnetic panel (2) and is capable of vertically reciprocating movement.
Operating means 22 for pulling down the slider 20 from the outside of the magnetic image plate.
Is constantly urged upward by the urging member 21 so as to return to the outside of the area of the magnetic panel 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention uses a magnetic writing instrument to draw the magnetic powder in a small room using a magnetic writing instrument to display pictures, characters, etc. on the surface of a magnetic panel, which is a collection of small rooms in which magnetic powder is sealed in a viscous fluid. To a magnetic plate.

[0002]

[Prior art]

 Conventionally, a display device utilizing the fact that when a permanent magnet is brought close to the surface of a magnetic panel composed of a member in which magnetic powder is sealed in a viscous fluid, the permanent magnet attracts the magnetic powder in the member and causes the magnetic powder to float on the surface. A magnetic plate is known as such. As shown in FIG. 4, when the magnet 31 serving as an erasing device disposed on the back side of the magnetic panel 30 is moved in the direction of the arrow by sliding the lever 32 left and right as shown in FIG. All the floating magnetic powder was sucked downward to erase the figure 33 displayed on the surface.

[0003]

[Problems to be solved by the invention]

 However, when the above-described magnetic drawing plate is used as a wall-mounted type, it is necessary to hold down the drawing plate body with one hand and to operate the lever 32 with the other hand when sliding the lever 32, and erase with one hand. I couldn't do that.

The present invention solves the above-mentioned problems, and provides a magnetic plate which can be easily erased with one hand without having to hold the magnetic plate when erasing a display and which is suitable for hanging on a wall. Is the subject.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, the magnetic picture plate according to the present invention uses a magnetic writing instrument to attract magnetic powder in a small room using a magnetic writing instrument on the surface of a magnetic panel composed of a collection of small rooms in which magnetic powder is sealed in a viscous fluid. A magnetic painting plate having the following requirements for displaying pictures, characters, and the like. (A) A slider capable of reciprocating vertically is disposed on the back side of the magnetic panel, and an erasing device for erasing the display of the picture, character, or the like is provided on the slider in the longitudinal direction. Operating means for pulling down from the outside of the magnetic plate is provided. (C) The slider is always urged upward by an urging member so as to be positioned above the magnetic panel.

[0006]

[Embodiment of the invention]

 FIG. 1 shows an example of a magnetic drawing plate according to the present invention. A magnetic drawing plate formed by imitating a rabbit's face is composed of an upper cover 1, a magnetic panel 2, and a lower cover 3, and the magnetic panel 2 has a lower surface. It is accommodated in the receiving portion of the cover 3 and is fixed by the upper cover 1 connected to the lower cover 3 by appropriate means.

The upper cover 1 is made of a synthetic resin such as plastic, which is a non-magnetic material. An opening 4 for exposing the front surface of the magnetic panel 2 is formed in the center, and a pen holder 5 imitating an arm is formed on both sides. , 5 are formed. At the upper part, a suspension string 6 for suspending the magnetic picture plate on a wall surface is attached.

The magnetic panel 2 is a panel formed by assembling small chambers in which magnetic powder is sealed in a viscous fluid and covering the surface with a non-magnetic transparent protective sheet. It is composed of a known magnetic panel that can draw characters and pictures by sucking the magnetic powder in the small chamber and moving it to the front side by tracing the surface.

The lower cover 3 is made of a synthetic resin such as plastic, which is a non-magnetic material like the upper cover 1, and a concave portion 11 for accommodating the magnetic panel 2 and the erasing device 10 is formed in the center. The pen holders 12 and 12 are formed by imitating the arms. The pen holders 12 and 12 have a concave groove 15 having a diameter slightly larger than the thickness of the magnetic pen 14 having the magnet 13 at the tip, so that the magnetic pen 14 can be inserted when the upper cover and the lower cover are overlapped. An insertion hole is formed.

An overhanging edge 16 is formed on the inner peripheral surface of the recess 11, and the magnetic panel 2 is fixed by being sandwiched between the overhanging edge 16 and the upper cover 1. An erasing device 10 is arranged below the overhanging edge 16. This erasing device 10 is composed of a single slider 20 slidably arranged vertically along the back surface of the magnetic panel 2. This slider 20 has both end portions 20 a formed on both side surfaces of the concave portion 11. A spring 21 is attached to the overhanging edge 16 and is a biasing member. The spring 21 always returns to a position above the lower cover, and is located at a position that does not involve the magnetic panel 2.

The slider can be pulled down by the operation means 22. The operating means 22 includes a cord 23 having one end attached to the center of the slider 20 by a suitable means, and a disk-shaped knob 24 attached to the other end of the string 23. When the slider 20 is pulled down against the spring while holding the slider, the slider 20 slides downward along the back surface of the magnetic panel 2.

A magnet 25 as an erasing device is attached to the front surface of the slider 20 continuously in the longitudinal direction. At the time of sliding, the magnetic powder in the small chamber is attracted by the magnet 25 to remove the magnetic powder. The magnetic powder is forcibly moved to the back side of the magnetic panel 2 so that the magnetic powder cannot be recognized from the surface of the magnetic panel 2, and as a result, pictures and characters drawn with the magnetic pen can be erased.

According to the magnetic picture plate having the above structure, as shown in FIG. 3A, after drawing a picture on the magnetic panel 2 with the magnetic pen 14, the slider is slid downward by pulling down the knob. After moving, the magnet provided on the front of the slider attracts the magnetic powder in the small chamber to the back of the magnetic panel, and erases the characters and pictures displayed on the magnetic panel as shown in FIG. 3 (b). can do.

After the slider 20 is pulled down by holding the knob, when the user releases his / her hand from the knob, the slider 20 is urged by a spring to return upward, but also along the back surface of the magnetic panel. Since the slider slides, the magnet of the slider passes through the back surface of the magnetic panel twice by a single pull-down operation, so that characters and pictures can be erased more reliably.

Since the slider is set so that the center is pulled down, even if the slider is hooked with one string as shown in FIG. There is no need to hold the magnetic plate with the other hand when lowering the body, and it can be easily erased with one hand. In addition, the slider can reciprocate on the back surface of the magnetic panel with a single pull operation, so that the display can be reliably erased.

Although the magnetic plate is designed for hanging on a wall, it is not necessary to use it on a wall, and it goes without saying that it can be used on a desk or on the floor.

Further, a limiting mechanism (not shown) for limiting the speed at which the slider rises may be provided. By providing the limiting mechanism, the speed at the time of ascent is limited, and as a result, the slider 20 ascends slowly, so that the magnetic powder in the small room can be reliably sucked, and the surface of the magnetic panel 2 The display of drawn pictures and characters can be reliably erased with a single pull operation.

[0018]

[Effect of the invention]

 According to the magnetic panel of the present invention, when the magnetic panel is mounted on a wall, the panel body is supported with one hand, and there is no need to operate the erasing device with one hand, and the display can be easily erased with one hand. Can be.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a magnetic picture plate according to the present invention.

FIG. 2 is an enlarged perspective view of a main part of the magnetic picture plate.

FIGS. 3A and 3B are explanatory views showing a use state of the magnetic image plate.

FIG. 4 is a plan view showing a conventional magnetic image plate.

[Explanation of symbols]

 2 magnetic panel 20 slider 21 biasing member 22 operating means 25 erasing device (magnet)

Claims (1)

[Utility model registration claims] 1. The following requirements for displaying a picture, a character, and the like by sucking magnetic powder in a small chamber using a magnetic writing instrument on a surface of a magnetic panel composed of a collection of small chambers in which magnetic powder is sealed in a viscous fluid. A magnetic picture plate comprising: (A) A slider capable of reciprocating vertically is arranged on the back side of the magnetic panel, and the slider is provided with an erasing device for erasing the display of the picture or character in the longitudinal direction. (C) the slider is constantly urged upward by an urging member so as to return to the upper portion of the magnetic panel.