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发明名称
全摆动集灰栅栏黑板擦
摘要
本发明是一种黑板擦,其灰擦体(3)的周围有一个可弹动的集灰框(2),其上用定位连结膜(4)与数块集灰栅栏(5)相连接。在此连接处之旁,则有定位沟槽(41),(42),各集灰栅栏(5)之间也用连结膜(18),作皱褶拼连(17);又各有瓦楞结构(7)、(71)在其外侧表面。这些集灰栅栏(5)与集灰框(2)即形成一完整的密封集灰框罩(21),再与其底端的灰擦基底(1)相套接而上下弹动。此外附有增加集灰、拭灰效果的其他结构,使沿板面擦灰时,精确控制灰粉,确保人体健康。
申请公布号
CN1069935A
申请公布日期
1993.03.17
申请号
CN91108697.8
申请日期
1991.08.29
申请人
杨德操
发明人
杨德操
分类号
B43L21/00
主分类号
B43L21/00
代理机构
代理人
主权项
1、一种全摆动集灰栅栏黑板擦,包括一个有灰擦底架1,集灰框2,擦灰体3所组成的拭灰装置,其特征是在灰擦体3的周围有一个可弹动的集灰框罩21,它是用定位连结膜4与数块可作轴向摆动的集灰栅栏5连接在集灰框2之一端,在连接处之旁则有定位沟槽4142。各集灰栅栏5之间也用连接膜18作皱撍拼连17;而各集灰栅栏5之外侧表面又各有瓦楞结构7,71.如此构成的密封框罩21,再由其底端与灰擦底架1相套接,其中装入弹簧6即可上下弹动,此外集灰栅栏内侧有锯齿形沟槽53防止已收集之灰粉回流。
地址
201800上海市嘉定县李园二村22号501室
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