1. Field of the Invention
The present invention relates to a board or a white board, and more particularly to a board or a white board having a number of magnetic members that may be caused to move by the other magnetic devices.
2. Description of the Prior Art
Typical black boards are required to be written or draft with chalks which may generate powders and may pollute our environment, and may hurt people, such as may hurt the lungs of people.
Typical white boards are required to be written or draft with ink pens which may include evaporate solutions that may also pollute our environment, and may be breathed by and may poison people.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional boards.
The primary objective of the present invention is to provide a board including a number of magnetic members that may be caused to move by the other magnetic devices or magnetic pens, for writing or drafting purposes.
The other objective of the present invention is to provide a board including a number of magnetic members that may be reusable without generating powders and evaporate solutions.
In accordance with one aspect of the invention, there is provided a board comprising a board body including a plurality of cavities formed therein, a plate attached onto the board body, to enclose the cavities of the board body, a plurality of magnetic members slidably received in the cavities of the board body respectively, and each including a first end facing toward and movable toward the plate, and a second end facing away from the plate, and a magnetic pen movable on the board body, to attract selected magnetic members toward the plate, and to have the first ends of the selected magnetic members to be selectively seen through the plate.
Each of the first ends of the magnetic members is applied with a color or a pattern thereon.
A liquid may further be provided and received in the cavities of the board body respectively, to shield the magnetic members, and to prevent the first ends of the magnetic members from being seen through the plate when the magnetic members are retracted into and received in the cavities of the board body respectively, and to allow the one ends of the magnetic members to be seen through the plate when the magnetic members are attracted toward the plate.
The magnetic members include a plurality of first magnetic members and a plurality of second magnetic members alternatively disposed in the cavities of the board body respectively. The first magnetic members and the second magnetic members include magnetic poles different from each other.
A retaining device may further be provided for retaining the magnetic members deeply in the cavities of the board body respectively, and the board body includes a plurality of orifices formed therein, the retaining device includes a plurality of magnetic elements slidably received in the orifices of the board body respectively, and actable with the magnetic members, to attract and to retain the magnetic members deeply in the cavities of the board body respectively. The board body includes a partition arranged between the orifices and the cavities thereof, to separate the orifices and the cavities thereof from each other.
A spring biasing device may further be provided for biasing the magnetic elements away from the magnetic members respectively, and includes a plurality of springs received in the orifices of the board body respectively, and engaged with the magnetic elements respectively, to bias the magnetic elements away from the magnetic members respectively. Each of the magnetic elements includes a shank extended therefrom, and the springs are engaged onto the shanks respectively.
The magnetic elements includes a plurality of first magnetic elements and a plurality of second magnetic elements alternatively disposed in the orifices of the board body respectively. The first magnetic elements and the second magnetic elements include magnetic poles different from each other.
The magnetic pen includes two ends each having a rounded surface formed thereon, to smoothly move on the plate, and to prevent the plate from being scraped by the magnetic pen. A magnetic eraser to attract the magnetic members toward the plate, or to repel the magnetic members away from the plate.
Further objectives and advantages of the present invention will become apparent from a careful reading of the detailed description provided hereinbelow, with appropriate reference to the accompanying drawings.
Referring to the drawings, and initially to
A plate 14, such as a transparent or semi-transparent plate 14 is attached or secured on the upper portion 17 of the board body 10, and engaged onto the cavities 11 of the board body 10, to enclose or to seal the cavities 11 of the board body 10, and to allow the cavities 11 of the board body 10 to be formed as a water tight seal between the plate 14 and the partition 13.
A number of magnetic elements 20, 21 may be engaged in the orifices 12 of the board body 10 respectively, and alternatively disposed or arranged in the orifices 12 of the board body 10, and having magnetic poles different from or arranged opposite to that of the magnetic elements 21, 20 respectively. Each of the magnetic elements 20, 21 includes a shank 22 extended therefrom, and arranged to allow the magnetic elements 20, 21 to slide relative to the board body 10.
A number of spring members 23 are engaged onto the shank 22 of the magnetic elements 20, 21 respectively, and engaged with the partition 13, to bias or to move the magnetic elements 20, 21 away from the partition 13 (
A number of further magnetic members 30, 31 may be disposed or engaged in the cavities 11 of the board body 10 respectively, and alternatively disposed in the cavities 11 of the board body 10, and having magnetic poles different from or arranged opposite to that of the magnetic members 31, 30 respectively, and each of the magnetic members 30, 31 includes one end 32 facing toward the plate 14, and the other end 33 facing toward the partition 13 and the other magnetic elements 20, 21 respectively.
As shown in
When the magnetic members 30, 31 are attracted or moved away from the partition 13 and the magnetic elements 20, 21 by such as magnetic pens 40 (
As shown in
In operation, as shown in
On the contrary, due to the same magnetic poles on the one ends 32 of the other magnetic members 31 with the magnetic pole of the end 41 of the magnetic pen 40, the other magnetic members 31 may forced away from the plate 14, and may be attracted by and acted with the magnetic elements 21 (
Accordingly, when the magnetic pen 40 is moved or written or drafted on the plate 14, the selected magnetic members 30 may be attracted toward the plate 14, and arranged in response to or according to the handwriting or the trace of the magnetic pen 40, and to allow the one ends 32 of the selected magnetic members 30 to be seen through the plate 14.
After the writing operation with the magnetic pen 40, the magnetic eraser 45 may be arranged to have one of its sides 46 (N pole) located toward or close to the plate 14 (
Alternatively, the magnetic eraser 45 may also be arranged to have the other side 47 (S pole) located toward or close to the plate 14 (
Alternatively, as shown in
The handwriting or the trace of the magnetic pen 40 may also be removed or erased by the magnetic eraser 45, by placing such as the one side 46 (N pole) of the magnetic eraser 45 toward or close to the plate 14, to repel the selected magnetic members 31 away from the plate 14, and to have the selected magnetic members 31 attracted by and acted with the magnetic elements 21, to retract the selected magnetic members 31 in the inner portions of the cavities 11 of the board body 10 respectively, and to prevent the one ends 32 of the selected magnetic members 30 from being seen through the plate 14, and thus to remove the handwriting or the trace of the magnetic pen 40.
As shown in
It is to be noted that the board may be written or drafted again and again, without generating powders and evaporate solutions, and no pens or ink or chalks will be consumed.
Accordingly, the board in accordance with the present invention includes a number of magnetic members that may be caused to move by the other magnetic devices or magnetic pens, for writing or drafting purposes, and that may be reusable without generating powders and evaporate solutions.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.