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Full automatic propelling pencil and lead assembly

A pencil lead, fully automatic technology, applied in the field of core components, can solve the problems of short service life, plastic aging, deformation, etc., to achieve the effect of good coaxiality, easy production, and fewer parts

Inactive Publication Date: 2006-06-28
陈之伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its interior is manipulated by friction, and due to the aging and deformation of plastics, it gradually fails, and has the disadvantage of short service life.

Method used

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  • Full automatic propelling pencil and lead assembly
  • Full automatic propelling pencil and lead assembly
  • Full automatic propelling pencil and lead assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] The sandwich block 5 is composed of two symmetrical lobes, which are injection-molded with high-engineering plastics. After the sandwich is closed, the two ends of the sandwich form two conical holes with a large outer and a smaller inner. The holes just close together without gaps, and the sandwich part is between the two tapered holes. There is a stepped surface in the middle of the outer surface to cooperate with one end surface of the spring seat 4, and the two petals of the clamping block are synchronized to prevent axial misalignment to ensure reliable clamping. There are two symmetrical arc-shaped grooves on the outer surface of the core block 5 to place the steel ball 6 .

[0013] Protective nozzle 1, with a stepped hole in the middle, the small end is conical, the large end is stepped cylindrical, and the outer surfaces A and B of the ste...

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PUM

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Abstract

A lead assemblage with telescopic lead tip for the full-propelling pencil is composed of a main body, a lead protecting mouth integrated with said main body, a lead clamping unit with lead clamping block consisting of two halves, spring and spring holder, and a lead feeding unit with core tube, spring, and connecting sleeve.

Description

technical field [0001] The present invention relates to a core part of a fully automatic pencil, which can be assembled with the pen holders of fully automatic pencils of various styles, materials and thicknesses to form a fully automatic retractable pencil or a fully automatic retractable pencil used by a fully automatic pencil core assembly. Background technique [0002] There are many kinds of existing writing pens, such as ballpoint pens, gel pens, fountain pens, Parker pens, propelling pencils, automatic pencils, etc., and ballpoint pens, gel pens, etc. have replaceable refills. If the refill is finished or the nib is damaged It can be replaced with a new one and can be used repeatedly and repeatedly, but the existing mechanical pencils and automatic pencils can only replace the lead, and there is no integral replaceable pencil lead assembly. Once the parts are damaged, the whole pen has to be discarded, which brings waste and economic loss to the user. [0003] Paten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K21/02
Inventor 陈维屏
Owner 陈之伟
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