JPS6310311Y2 - - Google Patents

Description

[Detailed description of the invention] This invention can be used as stationery or eyeliner.
Used as an applicator for cosmetics such as mascara,
It mainly relates to a writing instrument that uses a brush-like writing tip member.

This type of writing instrument is generally constructed so that the inside of the writing instrument body is impregnated with writing fluid, and the writing fluid is guided to the writing tip member while allowing air to flow into the writing instrument body through the air hole, and the writing tip member has a thick line. Because writing requires a large amount of writing fluid, the extraction of this writing fluid is extremely smooth. For this reason, even if you cover the cap and close the air hole opening inside the cap, if you keep the writing tip facing down, the writing fluid will drip out inside the cap, and then you can place the writing instrument horizontally or turn it upside down. Then, this dripping writing liquid leaks out from between the cap and the writing instrument body, staining other objects, or adheres to the tip of the writing instrument body, staining hands when using the writing instrument. On the other hand, if the writing tip member is turned upward, the writing liquid contained in the writing tip member will transfer to the inner cotton, making it impossible to write immediately even after removing the cap.

The present invention eliminates these inconveniences, prevents writing fluid from leaking out of the cap, removes dirt from the tip of the writing instrument, and creates a writing instrument that can be used for writing immediately after removing the cap. It's something you get.

That is, the present invention provides a membrane body made of an elastic material inside the cap, and a hole in this membrane body that contacts the outer periphery of the tip of the writing instrument body, seals the tip, and wipes the tip when the cap is removed. Further, an air hole is provided in the writing instrument body, which is located at the back of the cap from the membrane body when the cap is attached, and is exposed outside the membrane body when the cap is removed, and allows the writing liquid to be sucked into the writing tip member. This is a unique writing instrument.

Hereinafter, the present invention will be specifically explained with reference to illustrated embodiments. This writing instrument 10 consists of a writing instrument main body 12 and a cap 14. The writing instrument main body 12 has a brush-like writing point member 18 at the tip 16, and is configured to write using a writing liquid impregnated in a built-in filling pad (not shown). cap 12
is attached to the tip 16 of the writing instrument main body 12, and has a funnel-shaped membrane 20 made of an elastic material such as rubber inside.
is installed protrudingly. There is a hole 2 in the center of this membrane body 20.
2 is formed and elastically contacts the outer periphery of the tip 16 of the writing instrument body. Formed in the writing instrument main body 12,
The air hole 24 allows air to flow into the interior while writing.
It is provided on the outer periphery of the tip portion 16 at a position that is slightly deeper than the membrane body 20 when the cap 14 is attached and through which the hole 22 of the membrane body 20 passes when the cap is removed.

Since this writing instrument 10 has the above configuration, it has the following effects. The cap 14 is attached to the writing instrument body 1.
2, the tip 16 fits into the hole 22 of the membrane body 20.
Elastically adheres to. Therefore, cap 14
Even if the writing fluid drips inside the cap 14, the seal is intact and the membrane 20 protrudes from the wall of the cap 14. The writing fluid attached to the inner wall surface of the cap will not leak out of the cap. Also, this writing liquid adheres to the outer periphery of the tip 16 inside the cap 14, but when the cap 14 is removed, the membrane 20 wipes this area, and when the writing instrument main body 12 is used, the tip 16 is coated with the writing fluid. The writing fluid is no longer attached.

Furthermore, when removing the cap 14, the air hole 24
After the membrane body 20 is exposed outside the membrane body 20, the writing instrument main body 12 is pulled out while the membrane body 20 is in contact with the tip portion 16. At this time, the writing liquid is sucked into the writing tip member 18 due to the negative pressure generated within the cap 14. be done. For this reason, even if the writing tip member 18 is placed facing upward and the writing liquid contained in the writing tip member 18 has transferred to the inner wad, immediately after the writing instrument main body 12 is pulled out from the cap 14, , writing tip member 1
No. 8 contains sufficient writing fluid and is ready for writing. Note that since the amount of writing liquid sucked into the writing point member 18 differs depending on the position of the air hole 24, the optimum position for practical use must be determined through experiments.

According to the present invention, as mentioned above, leakage of writing fluid,
There is no dirt on the tip of the writing instrument, and it is completely prevented from getting your hands dirty or damaging the appearance of the writing instrument. Furthermore, the writing instrument of the present invention is extremely easy to use, as it is possible to write with certainty immediately after removing the cap, regardless of the orientation during storage.

Therefore, the present invention is suitable not only for writing implements as stationery, but also for liquid cosmetics such as eyeliner, mascara, and eyelash dome, which do not want to stain hands.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of the present invention. 10... Writing instrument, 12... Writing instrument body, 14...
... Cap, 16 ... Tip, 18 ... Writing tip member, 20 ... Membrane body, 24 ... Air hole.

Claims (1)

[Scope of utility model registration request] A membrane body made of an elastic material is provided in the cap, and a hole is formed in the membrane body to contact the outer periphery of the tip of the writing instrument body, seal the tip, and wipe the tip when the cap is removed, The writing instrument is further characterized in that the main body of the writing instrument is provided with an air hole that is located deeper into the cap than the membrane body when the cap is attached, is exposed outside the membrane body when the cap is removed, and allows writing liquid to be sucked into the writing point member. .