CN2235896Y

CN2235896Y - Blackboard with vanished checks

Info

Publication number: CN2235896Y
Application number: CN 95229761
Authority: CN
Inventors: 邹慧郡
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-12-29
Filing date: 1995-12-29
Publication date: 1996-09-25
Anticipated expiration: 2005-12-29

Abstract

The utility model relates to a blackboard with vanished checks, which marks vanished checks on surface coating layers of existing various blackboards. The lines of the vanished checks are marked into indentations which are positioned in the surface coating layer of the blackboard, and the depth is less than the thickness of the surface coating layer of the blackboard. The colour of the lines of the vanished checks is different from but approach to the colour of the surface coating layer of the blackboard.

Description

Blackboard with vanished checks

The utility model relates to a kind of blackboard of writing usefulness, and portrayal has the Blackboard with vanished checks of latent ruling on the blackboard panel coating.

As everyone knows, our employed various blackboards mainly are made of plate finishing coat, base plate and acoustical panel at present.The plate face that removes coordinate blackboard, five line blackboards, the English blackboard of specific use is decorated with especially bright, and no matter the big blackboard of amplitude broad more than 3 meters that use in other blackboards, especially classroom is black, green or light blackboard surface, does not all have what grid.On the blackboard of no grid, write picture, be difficult to reach the effect of neat appearance.If draw bright lattice on the big blackboard of classroom use, because the grid lines protrude, dust is more when writing, and is not easy to wipe up, and adds that again bright ruling bar is too showy, so must influence student's vision.

The purpose of this utility model provides a kind of Blackboard with vanished checks.Latent ruling, latent ruling are arranged is to be carved in the blackboard panel coating in portrayal on this Blackboard with vanished checks plate face, sees clearly Chu in 3 meters of blackboard panels, does not see Chu beyond 3 meters.The teacher writes picture on this Blackboard with vanished checks, the writing neat appearance, and the student sees clearly Chu, and visual sense is comfortable, and loses its latent lattice.

The purpose of this utility model is achieved in that uses the material identical or close with the blackboard panel coating hardness, depicts latent ruling on the plate finishing coat, and the degree of depth of latent ruling indenture is less than plate finishing coat thickness.The color and luster of the latent ruling that requirement depicts and plate finishing coat are different and close.If latent ruling that depicts and blackboard panel coating difference are obvious, beyond 3 meters, can also clearly see latent ruling, just use and the different and close color of blackboard panel coating color and luster, the latent ruling of portrayal is scribbled heavily again.Owing to adopt such scheme, with the interior latent ruling of Chu that sees clearly, do not see the latent ruling of Chu beyond 3 meters 3 meters of distance blackboard panel coatings.

Write picture on this Blackboard with vanished checks, reach the effect of neat appearance easily than present employed no Blackboard with vanished checks, the student sees clearlyer, and visual sense is comfortable.

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

Fig. 1 is the blackboard panel front schematic view.

Fig. 2 is the left pseudosection of Fig. 1.

Fig. 3 is the partial enlarged drawing of Fig. 2.

Among the figure: 1 blackboard panel coating.

2 latent rulings

3 base plates

4 acoustical panels

Claims

1, a kind of Blackboard with vanished checks is made of plate finishing coat, base plate, acoustical panel, is primarily characterized in that: described blackboard panel is the plate finishing coat (1) on the backplate surface, and portrayal has latent ruling (2) on this plate finishing coat.

2, Blackboard with vanished checks according to claim 1, it is characterized in that: the latent ruling of being portrayed on the described blackboard panel coating (1) (2) is the indenture that is carved in the plate face (1), its degree of depth is less than the thickness of blackboard panel coating, and the color and luster of latent ruling (2) is different and approaching with plate finishing coat (1).