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Pressing Writing instrument with Eraser

A technology of writing tools and erasers, applied to writing utensils, writing parts, mechanical pencils, etc.

Active Publication Date: 2021-01-05
MICRO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of this collet spring is set weakly in order to protect the pen core in a writing instrument with a low pen core hardness, so even if the force when erasing with an eraser is weak, the pen core groove may simply advance and the pen Core sent out

Method used

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  • Pressing Writing instrument with Eraser
  • Pressing Writing instrument with Eraser
  • Pressing Writing instrument with Eraser

Examples

Experimental program
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Embodiment Construction

[0031] The present invention can be applied to writing implements having writing elements such as mechanical pencils and ballpoint pens, and can also be applied to delivery tools for stick-shaped objects other than writing elements. In addition, it is applicable to a push-type writing instrument in which an eraser is attached to a push member in a stationary state, and a push-type writing implement in which an eraser is extended and contractible from the push member. figure 1 An example in which the present invention is applied to a retractable eraser provided with a mechanical pencil as a writing body is shown. exist figure 1 Among them, a cylindrical writing instrument body 1 has a handle 2 on the outer periphery, and accommodates the above-mentioned writing material 3 inside.

[0032] There are many kinds of push-type refill delivery mechanisms for mechanical pencils. figure 1 In the shown embodiment, in front of the refill slot 5 for accommodating the refill 4, a collet ...

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Abstract

The present invention provides a flexible writing instrument with an eraser that has an eraser in the rear of a pressing member provided in the main body of the writing instrument, in which the pressing member is locked when the eraser is used. When the writing instrument body is tilted so that the eraser side is present below the eraser side, the control pin and the movable stopper provided to the eraser holder fall down due to the self-weight of the sliding groove of the pressing member. If the control pin enters a snap groove continuously provided in the circumferential direction at the rear end of the sliding groove, the eraser holder is not retracted into the pressing member (16) by preventing disengagement of the control pin by the stopper. At this time, the outer end of the controlpin is opposite to the rear end surface (32) of the pressing retainer, the back surface becomes the abutting portion, the pressing member is locked, the pressing member cannot be pressed, and the feeding of the core is prevented.

Description

technical field [0001] The present invention relates to a type of writing instrument with an eraser that does not operate the push member when the eraser is used, in a writing instrument in which a push member having an eraser is advanced by a push operation to deliver writing materials writing implement. Background technique [0002] As a writing instrument in which the pressing part is pressed to send out writing materials such as mechanical pencils and ballpoint pens, an eraser is widely used in the pressing part, and the eraser is protruded from the rear end of the writing instrument main body so that handwriting can be erased. writing implement. As the installation structure of the eraser, there is known a writing instrument in which the eraser is arranged to be able to expand and contract on the pressing member, so that when the main body of the writing instrument is tilted so that the writing front end is located above the paper surface, the eraser will move from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K21/02B43K24/03B43K29/02
CPCB43K21/02B43K24/03B43K29/02B43K21/006B43K21/16
Inventor 细谷智广
Owner MICRO KK
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