Grip structure of shaft tube and writing implement and applying implement provided with such grip structure of shaft tube

Abstract

A grip structure of a shaft tube, and a writing implement and an applying implement each of which has the grip structure in a shaft tube are provided to increase the adhesion of a gel material and a shaft, to improve the appearance of the shaft tube and to prevent the dullness of a grip color. A grip structure(20) of a shaft tube(11) includes an endothelial object(21) for covering a shaft(13) directly, which is installed at the outside of the shaft containing the coating material therein; an envelope object(23) for covering the outside of the endothelial object; and a material(25) with a gel state capable of self-configuration maintenance, which fills a space between the endothelial object and the envelope object. The endothelial object is formed of a material having higher compatibility with the gel matter than the material of the shaft. Preferably, the shaft is made of a metal, and the endothelial object is formed of a material with light impermeability. Each of a writing implement(10) and an applying implement is provided with the grip structure in a grasping section(17) of the shaft tube(11) containing a coating material.

Description

technical field [0001] The present invention relates to a grip structure used in a pen or a paint implement and a grip structure with such a grip structure. Background technique [0002] As shown in the invention described in Patent Document 1 below, in a writing instrument or an applicator, by enclosing a fluid liquid substance in the grip part, the grip feeling can be improved. In this invention, a fluid liquid substance is enclosed in the space between the shaft main body and the outer cover. In this way, when the grip part is held, the liquid substance with fluidity is separated from the part pressed by the finger due to its fluidity, and the liquid substance disappears between the outer cover body and the shaft main body, thereby causing the problem that the finger touches the The metal shaft part of the shaft cylinder feels uncomfortable, etc., and the improvement of the grip feeling cannot be exerted. [0003] In this regard, Patent Document 2 describes a technique ...

AI Technical Summary

Problems solved by technology

[0006] In the invention described in the above-mentioned Patent Document 2, although the gel-like substance that can maintain its own shape is closely attached to the mandrel, it is not bonded or even fixed. Therefore, when deformed by an external force, the gel-like substance and the outer covering will be Peel off from the surface of the mandrel and mix with air bubbles

When the gel-like substance is made light-transmissive, such air bubbles can be seen from the outside, and the air bubbles and the adhered parts are mottled, which makes the appearance unattractive.

[0007] Furthermore, there is a problem that when the mandrel is made of metal such as a stainless steel pipe or a brass pipe, since the color of the mandrel can be slightly seen through the outer cover or gel-like substance, the handle appears blurred. s color

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