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Manufacture method for chalk with telescopic holding handle

A production method and technology of chalk, applied to writing utensils, non-active pencils, blackboard or slate cleaning devices, etc., can solve the problems of easy dirty hands, inconvenient use, waste, etc., to achieve convenient wiping and avoid dirty hands , the effect of saving resources

Inactive Publication Date: 2012-01-11
SHANGHAI JIADING DISTRICT NANXIANG PRIMARY SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the user uses chalk, it is easy to get dirty hands, and with the use of chalk in the writing process, it is getting shorter and shorter, which is very inconvenient to use, and it is wasteful to throw away, and it is very inconvenient to wipe.

Method used

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  • Manufacture method for chalk with telescopic holding handle
  • Manufacture method for chalk with telescopic holding handle

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] A specific embodiment of a method for making chalk with a retractable handle of the present invention is given below in conjunction with the accompanying drawings.

[0014] See figure 1 Shown, a kind of manufacturing method of the chalk with retractable handle, wherein,

[0015] First, a chalk cover 2 with a threaded outer surface is set on one end of a chalk 1; then a hollow casing 3 with threads on the inside is screwed with the chalk cover 2, and when the chalk 1 is used, it feels too long. Or when it is too short, the length can be adjusted by rotating the chalk 1; at last, a brush 4 is set at the end of the hollow shell 3 that is not connected with the chalk cover, and the hollow shell 3 is overturned when writing a typo. Wipe with a brush.

[0016] Further, the shell 3 is made of hard plastic.

[0017] In addition, the bristles of the hair brush 4 are soft plastic or animal hair.

[0018] The invention provides a method for making a chalk with a retractable ha...

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PUM

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Abstract

The invention relates to a manufacture method for a chalk with a telescopic holding handle, which comprises the following steps of: step (1): sheathing a chalk sleeve with the threaded outer surface onto one end of the chalk; step (2): screwing a hollow case with screw threads at the inner side with the chalk sleeve; and step (3) installing a hair brush at the end part of the hollow case which is not connected with the chalk sleeve. The manufacture method for the chalk with the telescopic holding handle has the advantages that the design is novel, in the chalk using process, a hand is prevented from getting dirty through being in direct contact with the chalk, the unnecessary waste is completely reduced during the process of the chalk in use, a blackboard is also convenient to wope, the manufacture is relatively simple, and the population and the mass production of products are favorably realized.

Description

technical field [0001] The invention relates to a method for making chalk, in particular to a method for making chalk with a retractable handle. Background technique [0002] Chalk is an indispensable teaching tool in school education and teaching. Nowadays, there are many kinds of chalks, such as colored chalks, dust-free chalks, etc., all emerging in endless styles and functions. But the user is easy to dirty hands when using chalk, and along with the use of chalk in writing process, becomes shorter and shorter, uses very inconvenient, throws away and causes waste again, and wipes up very inconvenient. Contents of the invention [0003] The invention provides a method for making chalk with a retractable handle, which provides a chalk with functions of a chalk eraser and a retractable handle, which can be easily wiped, and can avoid dirty hands, and the chalk can be used completely. [0004] In order to achieve the above object, the technical scheme that the present inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K19/00B43K23/016B43L21/00
Inventor 孙晓蕊
Owner SHANGHAI JIADING DISTRICT NANXIANG PRIMARY SCHOOL
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