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
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  • 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

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

Examples

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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 ...

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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

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Application Information

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IPC IPC(8): B43K24/04
Inventor 谢明仁
Owner 谢明仁
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