JPH0530949Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a drawing board on which drawing paper, design materials, etc. can be attracted and fixed using static electricity.

[Prior Art] A conventional drawing board is made by laying a resin sheet or a magnetic sheet on the surface of a drawing board made of plywood or the like, and a drawing paper is attached to the drawing board using adhesive tape or a metal band sheet made of magnetic stainless steel or the like. The drawing paper was placed and fixed on the top surface of the drawing board by fastening the corners or edges of the drawing board.

[Problem to be solved by the invention] However, in general, drafting paper has curls or bent parts at its corners, edges, etc. When placing and fixing the drawing board on the drawing board using adhesive tape or a metal band sheet, it is troublesome to proceed with the work while holding it down by hand. Further, the drawing board is often used at an angle, and in this case, there are problems such as the drawing paper slipping down from its original position before being fastened.

The present invention was developed to solve the above-mentioned problems in placing and fixing drawing paper, etc. on the conventional drawing board, and it can be done very easily and in a very short time without shifting the position of drawing paper, etc. To provide a drawing board that can be adsorbed and fixed to the drawing board, and can also be freely selected to securely and firmly fix drawing paper, etc. to the drawing board, if necessary, by using a magnetic sheet laid on the drawing board. The purpose is to

[Means for Solving the Problems] The above-mentioned object is to provide a drafting board having a smooth and rigid plane, a magnetic sheet for magnetically fixing means for drafting paper or design materials, etc. laid integrally on the upper surface of the board; It consists of a synthetic resin electrostatic adsorption film made of polyvinyl chloride or the like that is integrally laid on the upper surface of the magnet sheet, and drawing paper or design materials, etc. are placed on the upper surface of the synthetic resin electrostatic adsorption film. This is achieved by a drawing board characterized in that the sheets of paper are attracted and fixed by electrostatic charging by bringing the sheets of paper into contact with each other and rubbing the surface with a hand or the like.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

The drawing is a partially exploded perspective view showing an embodiment of the drawing board according to the present invention.

The drawing board 1 has a thin magnetic sheet 3 laid integrally on the upper surface of a drawing board 2 having a smooth rigid plane made of a framed wooden panel or the like.
Further, on the upper surface of the magnet sheet 3, an electrostatic adsorption film 4 made of a polyvinyl chloride-based synthetic resin film and having high electrostatic chargeability is integrally laid down by pasting or heat welding. The electrostatic adsorption film 4 made of this polyvinyl chloride-based synthetic resin film has high electrostatic chargeability, so
Paper leaf 6 such as drafting paper or design material is placed on the top surface.
The sheet 6 is brought into contact with the sheet 6, and the sheet 6 is charged by simply rubbing its surface lightly with a hand or the like for a very short period of time, thereby attracting and fixing the sheet 6.

The magnet sheet 3 is a thin plate-shaped rubber magnet or synthetic resin magnet made by kneading a ferromagnetic material such as ferrite, and is magnetized with a single pair or multiple pairs of N and S poles as appropriate. This magnet sheet 3
is used to securely and firmly fix paper sheets 6 such as drafting paper to the drawing board 1 as needed without using electrostatic adsorption means, and is used on the top surface of the electrostatic adsorption film 4 on the top surface of the magnet sheet 3. If the sheet of paper 6 is placed on top of the sheet and a metal band sheet made of magnetic stainless steel or the like is attached magnetically from the required places on the top surface, the sheet of paper 6 can be held more reliably, although it requires more time, effort, and accessories than electrostatic adsorption means. It is firmly fixed to the drawing board 1.

Of course, if both the electrostatic adsorption means using the electrostatic adsorption film 4 and the magnetic fixing means using the magnet sheet 3 are used, the sheet of paper 6 can be held even more firmly and firmly on the drawing board 1. can be fixed to.

The color sheet 5 is made of polyvinyl chloride synthetic resin having various colors, and is integrally laid between the magnet sheet 3 and the electrostatic adsorption film 4 by means of adhesion, heat welding, or the like. When the electrostatic adsorption film 4 is transparent or similar, it is possible to prevent an adverse aesthetic effect such as the color tone of the magnet sheet 3 being reflected on the surface of the drawing board 1, and to obtain a drawing board 1 with beautiful colors. can. Note that if the electrostatic adsorption film 4 is chromatic, the color sheet 5 is omitted.

[Operations and Effects of the Invention] The drawing board of the present invention having the above-mentioned configuration can be used by contacting a sheet of paper such as drawing paper or design materials to a desired position on the top surface of the drawing board, and gently touching the surface with a hand or the like for a very short time. By rubbing, the entire surface of the electrostatic adsorption film is charged with high-density static electricity, which attracts and fixes drawing paper, etc., and this allows the drawing board to be used not only horizontally but also when it is tilted. The drawing paper or the like can be firmly fixed to the upper surface of the drawing board for a relatively long period of time without slipping down or becoming misaligned.

The electrostatic attraction force corrects curls or bent portions of paper sheets such as drafting paper fixed to the drafting board of the present invention. This makes it much easier and faster to fasten the corners or edges of drafting paper with adhesive tape or magnetic metal strip sheets than with conventional drafting boards. can.

The electrostatic attraction force applied to the drawing paper is large over its entire area, but small over a portion of it, so it can be easily removed by holding one end of the paper in your hand and pulling it apart. Drafting paper can be removed.

As mentioned above, the present invention has the advantage that the drawing paper can be placed and fixed on the drawing board easily, accurately, and quickly, and the drawing paper can be placed on the drawing board for a long time until the drafting work is completed. This allows for further improvement in work efficiency and the completion of beautiful drawings.

In addition, in this invention, since the electrostatic adsorption film and the magnetic sheet are integrally laid on the top surface of the substrate, the electrostatic adsorption of the electrostatic adsorption film and the magnetic fixation of the metal strip sheet can be combined as appropriate. To obtain a more solid fixation of the paper sheet, use both.
Furthermore, it is possible to select either one depending on the required fixing state to obtain a desired and suitable fixing state.

[Brief explanation of the drawing]

The drawing is a partially exploded perspective view showing an embodiment of the drawing board according to the present invention. 1... Drawing board, 2... Substrate, 3... Magnet sheet, 4... Electrostatic adsorption film, 5... Color sheet, 6... Paper leaf.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A drafting board having a smooth and rigid plane, a magnetic sheet for magnetically fixing means for drafting paper or design materials, etc. laid integrally on the top surface of the board, and the magnetic sheet. It consists of a synthetic resin electrostatic adsorption film made of polyvinyl chloride that is integrally laid on the top surface and has a high electrostatic charging property. Paper sheets such as drafting paper or design materials are placed on the top surface of the synthetic resin electrostatic adsorption film. A drawing board, characterized in that the paper sheets, etc. are attracted and fixed by electrostatic charging by bringing the sheets into contact with each other and rubbing the surface with a hand or the like. (2) A drawing board characterized in that a color sheet is integrally laid between the magnet sheet and the electrostatic adsorption film according to claim 1 of the utility model registration claim.