Unlock instant, AI-driven research and patent intelligence for your innovation.

Blackboard erasing implement

The technology of a blackboard eraser and tool is applied in the direction of cleaning method using tools, blackboard or slate cleaning device, eraser, etc., which can solve the problems of damage, frequent removal, and inconvenient removal of the outer skin member 2, and achieve easy handling , the effect of little effort and burden

Inactive Publication Date: 2010-10-13
洪 思 允 +1
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In other words, it is difficult to erase multiple chalk marks written on the blackboard at one time
[0015] Third, it is very inconvenient to remove the chalk dust adsorbed on the chalk eraser
[0017] In addition, it is necessary to frequently remove chalk dust attached to the blackboard eraser
[0018] Fourth, because the outer skin member 2 is made of a material with limited rigidity, the outer skin member 2 needs to be frequently replaced with a new outer skin member
[0019] In other words, since the outer skin member 2 is damaged by frequent knocks during removal of chalk dust attached to the blackboard eraser, the pad member 4 is often exposed to the outside.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Blackboard erasing implement
  • Blackboard erasing implement
  • Blackboard erasing implement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] The blackboard eraser tool according to the best embodiment of the present invention is constructed as follows.

[0057] A blackboard eraser tool is provided, which includes: a blackboard eraser and a blackboard eraser cleaner, wherein the blackboard eraser includes: a support plate and a bottom member, the bottom member is installed on the bottom of the support plate and is made of natural leather material that rubs against the blackboard wherein the blackboard eraser cleaner includes a composite member attached to or detached from the blackboard, the blackboard eraser securely accommodated in the blackboard eraser cleaner, and wherein the blackboard eraser The cleaner includes a chalk dust removing member having a plurality of protrusions and a plurality of holes respectively formed between the protrusions so as to rub against the bottom member of the blackboard eraser.

[0058] In this case, preferably but not necessarily, the grip part is further combined on the upp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a blackboard erasing implement, and more particularly, a blackboard erasing implement having a blackboard eraser to erase chalk marks written on a blackboard cleanly and easily, and a blackboard eraser cleaner to remove the chalk powder clung to the blackboard eraser conveniently. The blackboard erasing implement includes a blackboard eraser and a blackboard eraser cleaner. The blackboard eraser includes: a support plate; and a bottom member that is installed on the bottom of the support plate and is made of a natural leather material that produces friction against a blackboard, and the bottom member from which an inner skin with fluff is exposed. The blackboard eraser cleaner includes a combining member that is attached on or detached from the blackboard, in which the blackboard eraser is safely accommodated. The blackboard eraser cleaner includes a chalk powder removing member having a plurality of protrusions and holes that are respectively formed between the protrusions so as to produce friction against the bottom member of the blackboard eraser.

Description

technical field [0001] The present invention relates to a blackboard eraser tool, in particular to a blackboard eraser tool, which has a blackboard eraser to cleanly and easily erase chalk marks written on the blackboard, and a blackboard eraser cleaner to easily remove Chalk dust on a blackboard eraser. Background technique [0002] Typically, when teachers or instructors teach or instruct students at a school or college, they write on the blackboard important information that the students need or other content required for the course. [0003] In this case, the information is usually written on the blackboard using chalk made from carbonated soda. [0004] At this point, after or during the lesson, use the blackboard eraser to erase the information written on the blackboard to then prepare for the next part of the lesson. [0005] Here, the attached figure 1 Describes a traditional blackboard eraser used to erase information written on a blackboard. [0006] Such as f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B43L21/02B08B1/00B08B15/02
CPCB43L21/02B43L19/0037B43L21/04B43L19/0068
Inventor 洪思允徐辅弘
Owner 洪 思 允