Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double clip head mechanical propelling pencil

A technology of mechanical pencil and clip head, applied in the direction of mechanical pencil, printing, writing utensils, etc.

Inactive Publication Date: 2003-06-25
KOTOBUKI & CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of the conventional dual-jaw propelling pencil, so the first object of the invention is to provide a dual-chuck which is convenient to replace the defective lead-holding chuck with a new lead-holding chuck during the production process A mechanical pencil that can be easily disassembled to remove the broken lead if it becomes clogged

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
  • Double clip head mechanical propelling pencil
  • Double clip head mechanical propelling pencil
  • Double clip head mechanical propelling pencil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The double-jaw propelling pencil of the first embodiment of the present invention will refer to Figure 1-14 describe, where figure 1 and 2 Indicates the dual-head mechanical pencil, Figure 3-14 express Figure 1-2 Parts of the dual-jaw propelling pencil shown.

[0034] see Figure 1-2 , the dual chuck propelling pencil has a cylinder consisting of a front cylinder 1, a rear cylinder 2 and a clip 21, the rear of the front cylinder 1 is provided with a flange 1a, and the front end of the rear cylinder 2 is connected to the flange 1a. touch. The front cylinder 1 and the rear cylinder 2 are rotatable relative to each other. The cylinder pen cap 3 is screwed into the front cylinder 1 front end. The cylinder pen cap 3 is detachable from the front cylinder 1 .

[0035] see Figure 11-14 , the barrel pen cap 3 is provided with a connecting part, which has an external thread 31 corresponding to the internal thread at the front end of the front cylinder 1, and a rear p...

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

A double-chuck mechanical pencil comprises a barrel, a barrel cap detachably attached to a front end of the barrel, a lead tank inserted in the barrel, a feed chuck for feeding leads, combined with the lead tank, a sleeve bolster disposed on the front side of the feed chuck, and a holding chuck combined with the sleeve bolster. A holding chuck unit including the holding chuck and the sleeve bolster, and a feed chuck unit including the feed chuck and a sleeve can come into contact with each other in the barrel cap.

Description

technical field [0001] The invention relates to a double-head automatic pencil provided with a lead-feeding chuck for feeding lead and a lead-holding chuck for holding lead. Background technique [0002] Various dual-jaw mechanical pencils aimed at reducing lead loss have been proposed in recent years. The double-jaw mechanical pencil has a lead-feeding chuck and a lead-holding chuck. The traditional dual-jaw propelling pencil has a complicated structure, and is provided with a lead-feeding chuck mechanism and a lead-holding chuck mechanism, so there are the following problems. [0003] In the production process of the double-head mechanical pencil, if it is found that the barrel-shaped cap that needs to be finished is defective, it is difficult to replace the defective cap with a good-quality pen cap due to the complex structure of the double-head mechanical pencil and the supply of parts in a complete set. Barrel cap. Because structural conditions require parts to be as...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B43K29/02B43K21/00B43K21/16B43K21/22B43K21/24
CPCB43K21/22B43K21/24
Inventor 新井幸夫小高忠夫
Owner KOTOBUKI & CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com