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

Telescopic core structure of writing tool

A telescopic structure and refill technology, applied in writing utensils, printing, writing parts, etc., can solve the problem of inconvenient use, and achieve the effect of simple operation.

Inactive Publication Date: 2005-07-27
谢明仁
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many kinds of structures on the pen tool to operate the expansion and contraction of the refill. The most common one is to directly use a button to press and release the refill to operate the expansion and contraction of the refill; : U.S. Patent US6.276,855B, or Taiwan No. 136892 "Expandable and Rotating Telescopic Structure". Writing; its disadvantage is: it needs to use the button or the pen holder to expand and contract the refill, which is not convenient to use

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
  • Telescopic core structure of writing tool
  • Telescopic core structure of writing tool
  • Telescopic core structure of writing tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] As shown in Figures 1-5, the retractable structure of the pen core of the pen includes an outer pen tube 10, a pen core 20, an inner sleeve 30, a sliding ring block 40 and a compression spring 50, wherein the outer pen tube 10 includes Pen body 11, nib 12, pen tail 13 and pen holder 14, and inside of pen tail 13, coaxial and cylindrical recovery tank 131 with appropriate depth is set, and the opening surface of recovery tank 131 can form an inner pen body 11 inside. ring flange 132; and the pen core 20 is sleeved in the inside of the inner sleeve 30, so that the front end of the pen core 20 and the inner sleeve 30 is provided with a front baffle 32, and a claw-shaped elastic back which can be elastically expanded baffle plate 31, and the diameter width of this elastic rear baffle plate 31 is slightly smaller than the circle diameter width of recovery groove 131 when it is tightened into a retracted state, so that inner sleeve 30 can enter recovery groove 131; A stopper ...

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 telescopic structure for the core of pen is composed of external tube, internal sleeve tube with front barrier and jaw-type elastic back barrier, pen core in the internal sleeve tube able to slide in external tube, load-bearing slide block on the frange of internal sleeve tube, and compressed spring. Its features that when the pen is swung, its pen core can be extended out or withdrawn back.

Description

Technical field: [0001] The invention relates to a pen, and more specifically relates to a retractable structure of a pen core of a writing tool. Background technique: [0002] There are many kinds of structures on the pen tool to operate the expansion and contraction of the refill. The most common one is to directly use a button to press and release the refill to operate the expansion and contraction of the refill; : U.S. Patent US6.276,855B, or Taiwan No. 136892 "Expandable and Rotating Telescopic Structure". Writing; its shortcoming is: it needs to realize the expansion and contraction of the pen core by means of the button or the expansion and contraction of the pen holder, which is not convenient enough to use. Invention content: [0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the expansion and contraction of the refills of existing pens that require the help of buttons or penholders to realize the expansion and...

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): B43K24/04
Inventor 谢明仁
Owner 谢明仁
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