Applicator

Abstract

The invention provides an applicator which can improve long-term usage and convenience by substantially accurately detecting the terminal state of flowing liquid and can inexpensively prevent deterioration of writability by preventing dew formation. An applicator comprises a rear shaft (1), an ink absorbing body (10) received in the rear shaft (1), an ink absorbing body support (20) opposed to the tip of the ink absorbing body (10), a leading shaft (30) mounted in an opening in the rear shaft (1) and having visibility, a detection tube (40) inserted in the leading shaft (30) and causing the ink from the ink absorbing body (10) to flow, a relay core (50) supported by the detection tube (40) and causing the ink from the ink absorbing body (10) to flow out, and a pen core (60) supported by the detection tube (40) to be positioned on the opposite side of the relay core (50) and opposed to the relay core (50) with a detection space (63) defined therebetween, the detection tube (40), relay core (50), and pen core (60) being integrally constructed. The state of termination of ink can be accurately visually grasped on the basis of the presence or absence of ink in the detection space (63) of the detection tube (40).

Description

technical field [0001] The present invention relates to a coating tool, which is composed of a marker and the like capable of easily detecting that ink has been used up. Background technique [0002] Among coating implements, that is, writing implements, there is a cotton-type type, in other words, a type called an indicator, and this type of recording implement is supplied from an ink absorbing body in a rear barrel to a pen core by Ink composed of water-based ink or oil-based ink. [0003] This cotton-padded indicator can be divided into various types, for example, it can be divided into: the type that the user can visually grasp the content from the ink absorbing body to the pen core (see Japanese Patent Application Laid-Open No. 6-270585), and The type that uses alcohol-based ink. [0004] As mentioned above, the conventional cotton-padded indicator is a type that can be visually recognized by the user from the ink absorber to the refill. Although this type can vary de...

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, the conventional cotton-padded indicator is a type that can be visually recognized by the user from the ink absorber to the refill. Although this type can vary depending on the color of the ink absorbed by the ink absorber, To some extent, the remaining amount of ink can be grasped, but the end state of ink cannot be detected correctly (ink is used up)

Therefore, there is a problem that long-term use or convenience cannot be sought

[0005] In addition, there is a problem with indicators using alcohol-based inks that condensation is prone to occur, and once this condensation occurs, it will lead to poor writing

[0006] In this case, however, a serious problem has recently arisen that condensation occurs on the inside of the cap, causing the writing to fade

As a countermeasure to solve this problem, there is a method of molding the resin into a thick wall to suppress the temperature change inside the cap, but this cannot reduce the cost.

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