JP2560140Y2 - Caps for writing instruments - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a writing pen, a marker, which is fitted to a writing tip to prevent evaporation of ink.
The present invention relates to improvement of a cap such as an aqueous ballpoint pen.

[0002]

2. Description of the Related Art Conventional caps used for felt-tip pens, markers, and the like are formed of a resin molded product or the like having excellent properties for suppressing evaporation of ink, and are written on an inner hole of the cap or an inner cap portion provided in the inner hole. It is mounted with the tip part closely fitted.

[0003]

The caps used for conventional felt-tip pens, markers, and the like have a closed inner hole except for the insertion side, so it is extremely rare depending on the size and shape. Accidents can occur, such as an infant accidentally swallowing the cap, clogging his throat and choking. The purpose of the present invention is to prevent the risk of suffocation and the like by allowing the infant to swallow the cap accidentally and in the throat to allow the air to pass, and to avoid the danger of choking, etc. The internal pressure inside the cap is reduced. An object of the present invention is to prevent the ink from being blown out of the brush tip and air holes provided in the vicinity of the brush tip (commonly referred to as a pumping phenomenon), thereby soiling hands and clothes.

[0004]

A cap such as a writing instrument of the present invention devised to achieve the above object has a stepped portion 26 at an upper end side of an inner hole thereof and has a cylindrical shape with a bottom. Lock on top
With ribs 18 at a plurality of locations on the rear outer periphery
The inner cap 16 secures the locking portion 27 to the cap 15.
Of the rib 18 and the cap 1
A gap 17 is formed between the ribs between the inner wall 5 and the ribs.
The window 2 is formed at the upper end of the cap 15 as appropriate.
2 is fixed to the window 22 and the cap 15
An air flow passage is formed by communicating with the inlet of
Ink is built into the inner hole, and the tip of tip 1 is written
The mouth plug 3 to which the portion 2 is fixed is fixed, and
3 is a shaft portion 14 provided with a groove 8 on the rear outer peripheral portion and a little on the rear end.
It is provided with a small-diameter shaft portion 10, while the front end of the front shaft 1 is provided.
The shaft 6 is supported at appropriate places by ribs 24 in the inner hole.
When the ink reservoir 13 is formed between the rib and the rib,
In addition, the hole 4 from the tip of the front shaft 1 and the hole
Slightly smaller diameter hole 5 is formed in communication with the rear of the 4, front barrel 1
The hole 4 and the ink reservoir are formed on the side of the shaft 6
A horizontal hole 7 communicating with the opening 13 is provided.
The shaft portion 14 is fixed to the hole 4 of the front shaft 1, and
An air hole 9 communicating with the groove 8 is formed between the shaft 1 and the tip end surface.
In addition, the shaft portion 10 of the mouth plug 3 is formed in the front bore of the front shaft 1.
Is tightly fitted in the hole 5 of the shaft 6 provided in the
The ink reservoir 13 is communicated, and the ink is
The ink is guided from Kurabe to form a cursive script.
When the cursive is fitted to the cap 15, the writing part 2 and the air
The hole 9 is closely fitted to the inner hole of the
When the tip shaft is attached to and detached from the cap, it is pressurized because it is attached to and detached from the inner cap while air is flowing. Decompression can be prevented. In addition, when the cap is swallowed, the air is circulated and suffocation can be prevented.

[0005]

1 to 3 show an embodiment of the present invention. First, FIG. 1 is a longitudinal sectional view of a main part of a writing implement, FIG. 2 is a perspective view of an external appearance of the writing implement, and FIG. It is the perspective view which showed expansion.

The present invention provides a writing pen, a marker, a water-based ball-point pen, and other caps which are fitted to the writing tip to prevent the evaporation of ink. It is devised so that ink is not blown out from the brush tip and the air hole due to pressurization and decompression due to the attachment and detachment of the body and the cap, so that hands and clothes are not stained. As shown in FIGS. A step 26 is formed on the upper end side, a flange 28 and a slot 29 are formed at the upper end in a cylindrical shape with a bottom, and the flange 28 is provided with a locking portion 27 that can be elastically displaced. The inner cap 16 on which the
The inner cap 16 is supported by fitting the rib 18 on the inner wall of the cap 16 and an air flow passage is provided between the outer wall of the cap 16 and the inner wall of the cap 15 between the ribs. Is formed. Further, a slit 19 is opened at the upper end side of the cap 15, and a bent portion provided at the end of the clip 23 is press-fitted therein,
The clip 23 is attached to a side surface of the cap 15. A crown 21 having a window 22 is fixed to an upper end of the cap 15 as appropriate, so that the window 22 communicates with an inlet of the cap 15 so that air can flow. Also, the crown 2
The one window 22 is formed in an appropriate shape and size, but it is also possible to cut out the window in a shape such as a character for displaying a writing instrument or the like.

On the other hand, an ink occlusion body 12 filled with ink is disposed in a rear inner hole of the front shaft 1, and a mouth plug 3 to which a writing unit 2 such as a ball-point pen is fixed is fixed to a tip of the front shaft 1.
The mouth plug 3 is provided with a shaft 14 having a groove 8 on the rear outer peripheral portion and a cylindrical shaft 10 having a slightly smaller diameter at the rear end .
On the other hand, a shaft portion 6 is supported by connecting a rib 24 at an appropriate position between an outer wall thereof and an inner wall of the front shaft 1 in a front inner hole of the front shaft 1, and an ink is provided between the ribs. A pool 13 is formed. Also, the shaft center of the shaft 6 is
A hole 4 and a slightly smaller hole 5 are formed behind the hole 4 so as to communicate with each other.
A hole 4 is formed in the side surface of the shaft 6
And a lateral hole 7 that communicates with the ink reservoir 13. Further, the lateral hole 7 is formed in a stepped shape at the connection position of the hole 4 and the hole 5 as in the embodiment, so that the core pin extended from the front end side and the rear end side of the front shaft with a die is pushed out sideways. It can be formed more easily.

As described above, the shaft portion 14 of the mouth plug 3 is press-fitted and fixed in the hole 4 of the front shaft 1, and the end surface 25 of the mouth plug 3 and the front shaft 1 are fixed.
An air hole 9 is formed in communication with the groove 8 between the end face of
The shaft portion 10 of the mouth plug 3 is tightly fixed to the hole 5 of the shaft portion 6 provided in the inner hole of the front shaft 1 to form the groove 8 and the ink reservoir 13.
Are communicated with each other, and the ink containing portion and the air hole 9 are configured to allow air to flow. The writing unit 2 and the ink occluding body 12
Is connected to the ink guiding core to guide the ink to the writing unit 2, and the writing body is constituted as described above. When the writing body is fitted to the cap 15, the writing unit 2 and the air hole 9 are formed.
Closely fits into the inner hole of the inner cap 16 to prevent evaporation of the ink.

[0009]

The construction of the present invention is as described above. When the writing body is fitted on the cap 15, the writing part 2 and the air hole 9 are tightly fitted by the inner cap, thereby preventing the evaporation of the ink and the drying of the writing part. I do. When the cap is removed, an air flow passage is formed.

[0010]

[Effects of the Invention] The structure and operation of the present invention are as described above. Even if an infant accidentally swallows the cap and gets clogged in the throat, the inner hole and the window are communicated from the insertion side of the cap to the upper end. As a result, the air flows between the insertion side and the upper end side, thereby avoiding a crisis such as suffocation. In addition, when the writing body is fitted to the cap, evaporation of the ink and drying of the writing part are prevented, and the close fitting part of the inside of the cap and the writing tip part is not pressurized or depressurized by removing and inserting the cap. Therefore, there is an effect that ink does not blow out from the writing portion and the air hole, so that a problem of soiling hands and clothes can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a main part of a writing instrument according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the appearance of a writing instrument.

FIG. 3 is a perspective view showing a part development of the writing instrument, and is partially sectioned.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front shaft 2 Writing part 3 Port plug 4 Hole 5 Hole 6 Shaft part 7 Side hole 8 Groove 9 Air hole 10 Shaft part 11 Ink guide core 12 Ink occlusion body 13 Ink pool 14 Shaft part 15 Cap 16 Inner cap 17 Gap 18 Rib DESCRIPTION OF SYMBOLS 19 Slit 20 Engagement part 21 Crown 22 Window 23 Clip 24 Rib 25 End face 26 Step 27 Lock part 28 Flange 29 Slip

Claims (1)

(57) [Scope of request for utility model registration] 1. A cap such as a felt-tip pen, a marker, and a water-based ball-point pen which is fitted to a writing tip to prevent evaporation of ink, wherein the cap 15 has a step 26 at the upper end side of an inner hole . Further, the inner cap 16 having a bottomed cylindrical shape and having a locking portion 27 at the upper end and having a plurality of ribs 18 at a plurality of locations on the rear outer peripheral portion is used to make the locking portion 27 a stepped portion 26 of the cap 15.
A gap 17 is formed between the ribs 18 between the ribs 18 and the inner wall of the cap 15, and a window 22 is provided at the upper end of the cap 15 appropriately. crown 21 is fixed in communication with the inlet of the window 22 and the cap 15 is formed an air flow passage, in the rear portion bore of front barrel 1 with a built-in ink, a writing unit 2 to the tip of the front barrel 1 The fixed mouth plug 3 is fixed, and the mouth plug 3 is
A shaft portion 14 having a groove 8 on the outer peripheral portion and a slightly smaller diameter shaft portion at the rear end.
Provided with a 10, while the ink reservoir 13 is formed between the other party section bore of front barrel first shaft portion 6 is supported by the ribs 24 at a location appropriate the rib and the rib, shank 6 of
A hole 4 from the tip of the front shaft 1 and the rear of the hole 4
And a small-diameter hole 5 are formed so as to communicate with each other.
A lateral hole 7 through which the hole 4 and the ink reservoir 13 communicate with each other is provided on the side surface of the shaft portion 6 provided at the end of the shaft portion 6. The shaft portion 14 of the mouth plug 3 is fixed to the hole 4 of the front shaft 1, and And tip surface of tip shaft 1
An air hole 9 communicating with the groove 8 is formed between the
A shaft portion provided in the front bore of the front shaft 1
6 and the groove 8 and the ink reservoir 13
In There communicated, above, cursive is derived ink from the ink internal portion is formed the writing unit 2, when the writing body was fitted into the cap 15, the writing unit 2 and the air hole 9 is the inner cap 16 A cap for a writing instrument or the like, characterized in that the cap is closely fitted to the inner hole of the ink cartridge to prevent evaporation of the ink.