JPH0436291Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is a cartridge-type writing instrument, in particular, the introduction of a core that is introduced deep into the cartridge circle, which is used for writing instruments for cosmetics such as liquid lipstick, eyeliner, mascara, foundation, etc. The present invention relates to a writing instrument in which a member is inserted.

Problems to be Solved by the Prior Art and Ideas In conventional cartridge-type writing instruments, the cartridge must be kept separate from the writing instrument itself during storage before sale.

For this reason, the writing instrument itself and the cartridge must be packaged in one box or bag, which takes up a large amount of storage space, and the packaging is exaggerated, especially for disposable writing instruments that use cartridges, which are common in cosmetic writing instruments. give an impression.

Therefore, the present invention was devised for the purpose of making it possible to keep the cartridge attached to the main body of the writing instrument during storage. Furthermore, in writing instruments for cosmetics, etc., a long introduction member is used that is inserted deep into the cartridge due to the nature of the writing liquid, which imposes restrictions on the shape of the cartridge, but the present invention also takes into consideration meeting these restrictions. be.

Means to Solve the Problems In other words, the present invention consists of a writing instrument body having a writing tip member and a cartridge containing writing liquid, which extends long into the writing instrument body and is inserted deep into the cartridge to introduce the writing liquid. In a writing instrument equipped with an introduction member, a long protrusion is provided at the rear end of the cartridge, and when the cartridge is inverted back and forth during storage, the protrusion extends along the periphery of the introduction member and does not supply writing liquid to the writing instrument body. This cartridge-type writing instrument is characterized in that it can be attached to the writing instrument main body in the state in which the writing instrument is in use.

Embodiments Hereinafter, embodiments illustrating the present invention will be described in detail.

1 and 2 show a writing instrument 10 according to a first embodiment of the present invention, with FIG. 1 showing the writing instrument 10 during storage and FIG. 2 showing the writing instrument 10 during use.

This writing instrument 10 consists of a writing instrument main body 11 and a cartridge 12. The writing instrument main body 11 has a brush-like writing tip member 13 at its tip, and furthermore, an introduction member 15 made of a porous material or the like protrudes in a long manner behind a support portion 14 that supports the writing tip member 13.
A substantially pipe-shaped grip shaft portion 16 extends from the rear of the support portion 14, and a tail plug 17 is screwed onto the rear end of this grip shaft portion 16. Furthermore, a narrow air passage 18 is formed in the support portion 14 to communicate the inside of the grip shaft with the outside, and a rubber ring 19 is provided at the inner front end of the grip shaft 16 . Also, a writing tip member 13 is provided at the front end of this writing instrument main body.
A removable cap 20 is provided to cover the mouth end of the narrow air passage 18.

The cartridge 12 stores a filling material 23 impregnated with writing liquid in a tank 22 having an opening 21 at its tip, and a cylindrical protrusion 24 extending long at the rear end of the tank 22. Part 21 is tail plug 1
7 and is sealed using this tail plug 17 as a lid. Note that the inside cotton 23 has uneven end surfaces 26 and 27 at both ends while leaving a gap 25 around the tank 22.
The writing liquid reservoir 28 is held at the front end of the tank 22 to collect the dripped writing liquid.

Since this writing instrument 10 has the above-described configuration, when storing it, as shown in FIG.
The mouth of the cartridge 1 is sealed with a tail plug 17, and the cartridge 1 is sealed.
Grip shaft part 1 with the rear end of 2 facing the tip of the writing instrument.
6, and while the protrusion 24 is extended along the introduction member 15, the tail plug 17 is screwed onto the rear end of the grip shaft 16. In use, as shown in FIG. 2, the cartridge 12 is first taken out of the grip shaft 16, the tail plug 17 is removed, and the introduction member 15 is inserted into the mouth 21 while being pushed into the grip shaft 16. Screw on the tail plug 17. In this way, the cartridge 12 is held between the rubber ring 19 and the tail plug 17, and while the outside air from the narrow air passage 18 is introduced into the inner wad 23 through the opening 21, the writing liquid inside the inner wad 23 is allowed to flow out. Students will be able to write in writing.

3 and 4 show a writing instrument 30 according to a second embodiment of the present invention, with FIG. 3 showing the writing instrument 30 during storage and FIG. 4 showing the writing instrument 30 during use.

This writing instrument 30 consists of a writing instrument main body 31 and a cartridge 32.

The writing instrument main body 31 includes a writing tip member 33, a support portion 34, an introduction member 35, and a narrow air passage 3, as in the above example.
6, it has a cap 37. Further, this writing instrument main body 31 does not have a grip shaft, but has a screw 38 around the rear part.

The cartridge 32 stores a filling material 41 impregnated with writing fluid in a tank 40 having an opening 39 at the tip, and has a long cylindrical protrusion 42 formed at the rear end of the tank 40. Part 4
The outer circumferential surface of 2 forms a grip shaft portion 43,
Female threads 44 and 45 are formed on the inner periphery of the tip of the opening 39 and the protrusion 42 to be screwed into the external thread 38 of the writing instrument main body 31, and a lid 46 is screwed onto the opening 39 to seal it. The inside of the tank 40 is configured in the same manner as in the above example, with a gap 47 and uneven end surfaces 48, 4.
9. A writing fluid reservoir 50 is provided.

Since this writing instrument 30 has the above configuration, when storing it, as shown in FIG.
The female thread 45 of the protrusion 42 of No. 2 is screwed onto the male thread 38 of the writing instrument main body 31. When in use, as shown in FIG. 4, remove the cartridge 32 from the writing instrument main body 31, remove the lid 46 from the opening 35, insert the introduction member 35 into the opening 39, and tighten the female thread 44 of the opening into the writing instrument main body. is screwed into the male thread 38 of the protrusion 4.
A lid 46 is screwed onto the two ends to form a tail plug. If this is done, the writing fluid will flow out in the same way as in the previous example, so that the user can grip the grip shaft 43 of the cartridge 32 and write.

Effects of the invention As mentioned above, the present invention allows the cartridge to be attached to the writing instrument body without supplying writing fluid even during storage, and it can be packaged and stored in the same way as a disposable writing instrument without a cartridge. and can be sold. Furthermore, since the cartridge is provided with a protrusion, the long introduction member of the writing instrument body does not get in the way, and it can be applied even when a filling is provided in the cartridge as shown in the illustrated example.

[Brief explanation of drawings]

Figure 1 is a side sectional view of the first embodiment of the present invention when stored, Figure 2 is a side sectional view of the same example when in use, and Figure 3 is a side sectional view of the second embodiment when stored. , FIG. 4 is a side sectional view of the same example in use. 10,30...Writing instrument, 11,31...Writing instrument body, 12,32...Cartridge, 13,33
...Writing point member, 15, 35...Introduction member, 2
4, 42... protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] A writing instrument consisting of a writing instrument body having a writing tip member and a cartridge containing writing liquid, and provided with an introduction member that extends long into the writing instrument body and is inserted deep into the cartridge to introduce the writing liquid. In a writing instrument, a long protruding part is provided at the rear end of the cartridge, and when storing the cartridge, the cartridge is reversed from front to back, and the protruding part extends along the circumference of the introduction member and is attached to the writing instrument body without supplying writing liquid to the writing instrument body. A cartridge-type writing instrument characterized by being able to perform the following functions.