CN2440667Y

CN2440667Y - Mangetic writing tool

Info

Publication number: CN2440667Y
Application number: CN 00231838
Authority: CN
Inventors: 毕成
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-20
Filing date: 2000-03-20
Publication date: 2001-08-01
Anticipated expiration: 2010-03-20

Abstract

The utility model relates to novel writing display tool, which solves the problem of powder. The utility model is composed of a magnetic writing board, a magnetic chalk and a magnetic scrubbing brush. The magnetic writing board is composed of a word element, a writing board and a net frame. The magnetic chalk and the magnetic scrubbing brush are composed of a magnetizer and a magnet. By using the characteristic of the magnetic principle of like poles repelling one another and unlike poles attracting each other, words and pictures can be displayed and eliminated by that the magnetic chalk and the magnetic scrubbing brush move on the writing board, and then the word element makes movement.

Description

The magnetic writing device

The magnetic writing device is the novel writing implement that one was write and be shown in to a kind of collection.

Vertical institute is known, and the blackboard that uses is a flat board of making certain size with cement or glass now, coats black color then and makes.Chalk is then made with lime.Their outstanding problem is a dust.

This practical purpose provides a kind of magnetic writing device of thorough solution dust problem.

The utility model is achieved in that makes the identical spherical character of several size shape with magnet, earlier the N utmost point, the S utmost point of character are coated black and white respectively, then character is installed on the rack that has a plurality of character framves, the size of character frame can freely-movable degree of being with character.The board of an equal size is installed respectively in the front and back of rack then.Constituted magnetic writing board by board, character and rack like this.The magnetic scrubbing brush then is made of jointly magnetic conduction object and magnet, and it is similar that its outward appearance resembles common scrubbing brush.Magnetic chalk also is made of jointly magnetic conduction object and magnet, and the magnetic conduction object is made writing end, and its shape is with common chalk.Can adjust the size of the magnetic field force of magnetic chalk and magnetic scrubbing brush by the magnetic conduction object.Like this, we move on board by magnetic chalk and magnetic scrubbing brush, utilize the characteristics of " same sex is repelled each other, and there is a natural attraction between the sexes " of magnet, make character produce motion, and finish the demonstration and the elimination of word or figure.And the unit are character what the definition of word or figure is decided by.

Owing to adopt above scheme, thoroughly changed the manufacturing process of traditional blackboard, scrubbing brush and chalk, and fundamentally solved dust problem.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the planar configuration figure of rack, and wherein the circular dash area in the upper left corner is pack into a schematic diagram in the character frame of a character.

Fig. 2 is the profilograph of magnetic chalk.

Fig. 3 is the profilograph of magnetic scrubbing brush.

A, character B, character frame M, magnet L, magnetic conduction object among the figure

Make a plurality of sizes character frame (B) identical with shape on the rack in Fig. 1, the material of rack should be a non-magnet material.The dash area of character among the figure (A) is represented the N utmost point, is painted with black: the S utmost point of another part represention character element (A) is painted with white.Earlier a transparent board and rack are fixed,,, at last another piece board and rack are fixed character (A) putting in the character frame (B) one by one as Fig. 1.Distance between two boards and the rack can free movable degree of being with character (A).In Fig. 2, magnetic conduction object (L) and magnet (M) are fixed together, make the chalk sample.In Fig. 3, equally magnetic conduction object (L) and magnet (M) are fixed together, make the scrubbing brush sample.Adjust the magnetic field force of magnetic scrubbing brush and magnetic chalk by magnetic conduction object (L), guarantee them on board when mobile, character (A) can be subjected to enough magnetic field forces and move.

Claims

1. magnetic writing device that thoroughly solves dust problem, it is characterized in that: it is made of jointly magnetic writing board, magnetic chalk and three separate components of magnetic scrubbing brush.Two boards that magnetic writing board is connected respectively by rack that character is housed and both sides are with it formed jointly.Magnetic chalk and magnetic scrubbing brush are all linked together by magnetic conduction object and magnet and make.Utilize the characteristics of " same sex is repelled each other, there is a natural attraction between the sexes " of magnet, on board, move demonstration and the elimination that character is moved finish word or image by magnetic chalk and magnetic scrubbing brush.

2. magnetic writing device according to claim 1, it is characterized in that: the circular character of being made by magnet in the magnetic writing board is arranged in the character frame on the rack one by one, the both sides of rack are connected with the transparent board of equal size respectively, and the distance between rack and the board can freely-movable degree of being with character.

3. magnetic writing device according to claim 1 is characterized in that: magnetic scrubbing brush and magnetic chalk are all linked together by magnetic conduction object and magnet and make, and with the magnetic conduction object of adjusting the magnetic field force size as with the contact jaw of board.