CN101856935A - 不用笔的写字板 - Google Patents

不用笔的写字板 Download PDF

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Publication number
CN101856935A
CN101856935A CN 201010175773 CN201010175773A CN101856935A CN 101856935 A CN101856935 A CN 101856935A CN 201010175773 CN201010175773 CN 201010175773 CN 201010175773 A CN201010175773 A CN 201010175773A CN 101856935 A CN101856935 A CN 101856935A
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China
Prior art keywords
grease
oil
white
film
brush
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Pending
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CN 201010175773
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English (en)
Inventor
何正发
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Individual
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Individual
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Priority to CN 201010175773 priority Critical patent/CN101856935A/zh
Publication of CN101856935A publication Critical patent/CN101856935A/zh
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Abstract

本发明涉及不用笔的写字板。用白瓷底板，上面涂一层黑色面糊状油脂，油脂上覆上一层透明薄膜，圆棒在上面划动，出现白色轨迹。掀起薄膜，轨迹消失，白板的上方架一卷薄膜，下方置一根棒，棒既可卷下上方的薄膜，亦可掀起薄膜。另制一长刷相当于黑板擦，在黑色油脂盖不住底板白色的时候，加点油脂“擦”一下黑板。刷子用圆棒制成滚筒状，长度与黑板同宽，油脂固定在黑板一侧的囊内，滚筒可均匀接触油脂而且能在跑道内从底板一侧刷向另一侧。

Description

不用笔的写字板
技术领域  代替黑板，草稿纸。
背景技术  上述两种写字费纸费笔。
发明内容  写字时显出底色的字。
具体实施方式  用白瓷底板，上面涂一层黑色面糊状油脂，油脂上覆上一层透明薄膜，圆棒在上面划动，出现白色轨迹。掀起薄膜，轨迹消失，白板的上方架一卷薄膜，下方置一根棒，棒既可卷下上方的薄膜，亦可掀起薄膜。另制一长刷相当于黑板擦，在黑色油脂盖不住底板白色的时候，加点油脂“擦”一下黑板。刷子用圆棒制成滚筒状，长度与黑板同宽，油脂固定在黑板一侧的囊内，滚筒可均匀接触油脂而且能在跑道内从底板一侧刷向另一侧。
本发明有益效果  节约，方便，无尘。

Claims (1)

1.用白瓷底板，上面涂一层黑色面糊状油脂，油脂上覆上一层透明薄膜，圆棒在上面划动，出现白色轨迹，掀起薄膜，轨迹消失，白板的上方架一卷薄膜，下方置一根棒，棒既可卷下上方的薄膜，亦可掀起薄膜，另制一长刷相当于黑板擦，在黑色油脂盖不住底板白色的时候，加点油脂“擦”一下黑板，刷子用圆棒制成滚筒状，长度与黑板同宽，油脂固定在黑板一侧的囊内，滚筒可均匀接触油脂而且能在跑道内从底板一侧刷向另一侧。
CN 201010175773 2010-05-19 2010-05-19 不用笔的写字板 Pending CN101856935A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010175773 CN101856935A (zh) 2010-05-19 2010-05-19 不用笔的写字板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010175773 CN101856935A (zh) 2010-05-19 2010-05-19 不用笔的写字板

Publications (1)

Publication Number Publication Date
CN101856935A true CN101856935A (zh) 2010-10-13

Family

ID=42943183

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010175773 Pending CN101856935A (zh) 2010-05-19 2010-05-19 不用笔的写字板

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CN (1) CN101856935A (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1030382A (zh) * 1987-12-27 1989-01-18 赵俊三 无粉尘无消耗书写板
CN2291311Y (zh) * 1997-03-28 1998-09-16 王小红 反复印式黑板

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1030382A (zh) * 1987-12-27 1989-01-18 赵俊三 无粉尘无消耗书写板
CN2291311Y (zh) * 1997-03-28 1998-09-16 王小红 反复印式黑板

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Open date: 20101013