JPH09169195A - Cap for writing utensil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent not only the damage of a writing part at a time of the insertion of a writing utensil main body but also the clogging of a vent hole caused by the refuse on the surface papers bonded to the writing part and to sufficiently ensure respiration even when an infant swallows a cap by mistake. SOLUTION: An inner cap 3 and an outer cap 4 are connected so as to leave a gap 12 and the opening part of the vent hole formed so as to pierce the connection part 11 is opened to the end edge of the inner cap 3 in the diameter direction thereof so that the opening part of the vent hole 5 is not axially opened with respect to the writing part of the writing utensil main body even if the writing utensil main body is inserted. Therefore, since the damage of the writing part by the hooking thereof is prevented and the refuse on the surface of paper bonded to the writing part or the dust penetrating from the upper surfaces of the caps falls into the caps, the clogging of the opening part 6 can be prevented even if the outer cap 4 is not made long. Since the opening part 6 of the vent hole 5 can be expanded so as to have a sufficient air passage without lowering strength, the inner cap 3 is certainly held and the suffocation state caused by swallowing by mistake can be sufficiently avoided without restricting the degree of freedom from an aspect of a design.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called safety cap which is used for a writing instrument, particularly a writing instrument using an ink containing a volatile component, and which does not cause a choking state even if accidentally swallowed.

[0002]

2. Description of the Related Art Conventionally, a writing instrument cap used for a writing instrument, particularly a writing instrument using an ink containing a volatile component, has a volatile component contained in the ink which is volatilized when not used as the writing instrument. In order to prevent the pigment or dye of the ink from being dried and solidified in the writing part and becoming unusable, it is required to sufficiently secure the airtightness inside the cap that houses the writing part projecting at the tip of the writing instrument main body. In order to prevent the writing instrument cap from being deformed or damaged even when stress is applied from the outside and lowering the airtightness inside the cap, the writing instrument cap is integrally molded with a resin having high strength, In order to secure a sufficient contact area of the inner circumference of the cap with the side surface of the writing instrument main body and to ensure the airtightness, it is tightly fitted tightly to the writing instrument main body. The is common.

[0003]

However, in the case of the above-mentioned conventional writing instrument cap, it is true that if this cap is integrally molded with a resin having high strength, the volatile components generated by deformation and damage due to stress are generated. Although it is possible to reliably prevent a decrease in the airtightness inside the cap that accommodates the writing part protruding from the tip of the writing instrument body impregnated with the writing instrument body, an infant or the like once inadvertently swallows this writing instrument cap by accident. If it gets stuck in your throat,
Since the high strength of the writing instrument cap acts in reverse, the writing instrument cap itself is unlikely to be deformed even when stress is applied from the outside, so that it does not deform even if pressure is applied from the outside and inside the airway of the throat. It is not possible to secure a sufficient space for this, and there is a risk of choking, which also makes it easier for infants and others to easily hold something that they touch by hand in their mouth. Has the drawback of being extremely dangerous.

Therefore, even if an infant or the like inadvertently swallows and gets stuck in the throat, it is possible to secure breathing and prevent choking. As shown in FIG. 8, the writing instrument cap is composed of an outer cylinder (A) and an inner cylinder (B), and a gap between the outer cylinder (A) and the inner cylinder (B) for communicating the inside and the outside of the cap. A part (C) is formed, and an opening (D) on the inner side of the cap of the gap is opened in the writing part insertion direction (actual fair 7-4279).
No. 1 etc.) has been proposed, but since the opening direction of the opening of the gap that communicates the inside and the outside of the cap is open toward the writing part insertion direction, the writing part is not inserted when the writing part is inserted. The tip (end) of the gap (C) that communicates between the inside and the outside of the cap is easily caught by the opening (D) inside the cap, and when the writing part is inserted, dust on the paper surface attached to the writing part Fine dust that falls or enters from the top of the cap easily accumulates and becomes clogged.
For example, if an infant or the like accidentally swallows the substance and blocks it in the throat, the function may not be sufficiently exerted in the gap portion, and the brush portion is not caught in the opening portion (D), so The bottom (F) of the cap must be long enough.

Further, since the inner cylinder (B) of the cap directly attached to the writing part is only suspended by the holding part (E) between the outer cylinder (A) and the gap part, The strength is also low, and the width of the holding part (E) must be reduced to secure the air passage, and the strength becomes weaker. When the writing part is strongly inserted, the outer cylinder and the inner cylinder are suspended together. There is also a problem that the holding part (E) will be damaged and the inner cylinder will not come off while keeping close contact with the writing part, and further, an inadvertently inadvertently swallowed the writing instrument cap and stuck in the throat. If you try to increase the area of the opening inside the cap in the gap that connects the inside and the outside of the cap to ensure sufficient breathing when you get caught, the expansion of the opening area will reach the inner wall surface of the inner cylinder to the maximum. And is able to avoid a minimal choking condition It may not be possible to achieve a secure more adequate breathing.

Therefore, the present invention is intended to improve the drawbacks of the above-mentioned conventional ones, and it is possible to prevent the deterioration of the hermeticity and the damage to the pen tip, while at the same time ensuring the strength of the writing instrument cap itself, and to prevent errors caused by an infant or the like. This is to ensure sufficient breathing during the choking condition caused by drinking.

[0007]

To this end, there is provided an outer cap and an inner cap formed with a gap between the outer cap and the tip writing portion of the writing instrument body in a sealed manner. A connecting portion is formed to connect the outer wall of the inner cap in the vicinity of the opening end of the inner cap, and a vent hole communicating axially from the gap is formed through the connecting portion of the outer cap and the inner cap. The opening is formed in the end surface of the outer wall of the cap so as to face inward in the radial direction.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In practicing the present invention,
In order to axially connect the inside and the outside of the cap, a ventilation hole formed through the connecting portion between the outer cap and the inner cap in the cap body through the gap is opened inward in the radial direction on the end surface of the outer wall of the inner cap. By inserting the tip writing part of the writing instrument body into the writing instrument cap, the opening of the ventilation hole that is arranged so as to face the inner wall surface of the opposing cap is completely sealed by the side surface of the writing instrument body. As a result, the airtightness of the inside of the cap can be reliably ensured and the drying and solidification due to the volatilization of the volatile components contained in the ink can be prevented. In particular, the opening of the ventilation hole that communicates the inside and outside of the cap body with a writing instrument. Do not open parallel to the body insertion direction, but face inward in the radial direction perpendicular to the above direction,
That is, since it opens to the side, when inserting the writing instrument main body, the tip writing section of the writing instrument main body can be smoothly inserted without being caught in the opening of the ventilation hole, and damage to the writing tip can be prevented. , The ink adhering to the writing part at the tip of the writing instrument, the dust on the paper surface, or the fine dust that enters from the top of the cap does not clogging the opening of the ventilation hole and falls toward the inside of the cap. The communication between the inside and the outside of the cap can be reliably ensured.

Further, even when an infant or the like inadvertently swallows the writing instrument cap and causes it to become stuck in the throat, the opening area of the vent hole for avoiding the suffocation state caused by the cap is set to the cap area. Since it can be expanded sufficiently along the inner wall surface, even if the writing instrument cap becomes clogged in the throat, sufficient breathing can be secured for a long time, and medical treatment can be performed directly by medical personnel. Since the chances of receiving the caps will increase, the safety against accidents such as accidental ingestion of infants can be sufficiently improved, and even if the area of the vent hole opening is sufficiently expanded, the cap itself Since the strength of the writing instrument is sufficiently secured, even if the writing instrument body is pressed hard into the cap of the writing instrument cap inadvertently, it is possible to reliably prevent the cap itself from being damaged. Reliably inner cap by the inner wall of the connecting portion can be connected suspended.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. (1) is a writing instrument cap according to an embodiment of the present invention. The writing instrument cap (1) includes an inner cap (3) and an outer cap (4) that are integrally molded of synthetic resin or are separate bodies. The connection portion (11) is connected in the vicinity of the open end of (3), and a gap (12) as an air passage is formed between the inner and outer caps (3) and (4). By inserting the writing instrument main body (8) into the inner cap (3), a space (10) for sealingly holding the tip writing portion (9) of the writing instrument main body (8) is formed,
In this inner cap (3), the outer cap (4),
A plurality of vent holes (5) are formed through the connecting portion (11) so as to communicate axially through the connecting portion (11) connecting the inner cap (3).

A vent hole (5) is formed through the connecting portion (11) for axial communication through the gap (12) between the outer cap (4) and the inner cap (3). ) Outer cap (4) multiple inner openings (6)
On the outer wall surface (7) of the inner cap.

Since the writing instrument cap (1) according to the embodiment of the present invention has the above-described structure, the writing instrument cap (1) is attached to the writing instrument body (8) when the writing instrument body (8) is not used. When inserted, the connecting portion (1) is provided to connect the inside (3) and the outside (4) of the cap.
The opening (6) on the inner side of the outer cap (4) of the ventilation hole (5) which is formed through 1) is opened radially inward at the edge of the outer wall surface (7) of the inner cap. By inserting the writing instrument body (8) into the inner cap (3) of the writing instrument cap (1), the opening (6) of the ventilation hole (5) between the inner cap (3) and the outer cap (4) is inserted. ) Is completely sealed by the side surface (8 ') of the writing instrument body (8), the writing portion (9) protruding from the tip of the writing instrument body (8) is a space inside the cap (3). (10) It is accommodated in the writing instrument body (8) while ensuring the airtightness, and prevents drying and solidification due to volatilization of the volatile component contained in the ink impregnated in the writing part (9) of the writing instrument body (8). You can

In particular, the opening (6) of the vent hole (5) between the inner cap (3) and the outer cap (4) of the cap body (2) does not open in the insertion direction of the writing instrument body (8), that is, the axial direction. In addition, the outer wall surface (7) of the inner cap (3) is opened inward in the radial direction, so that the inner wall (2 ') of the cap body (2) has a guide portion (14) extending over the entire circumference. )
Can be formed, and when the writing instrument main body (8) is inserted, the tip writing portion (9) of the writing instrument main body (8) is not caught by the opening portion (6) of the ventilation hole (5) smoothly. Since the writing instrument cap (1) can be inserted, it is possible to prevent damage when the writing instrument cap (1) is inserted into the writing instrument body (8), and also to remove dust, ink, or cap on the paper surface attached to the writing unit (9). Fine dust entering the gap from the top will fall toward the inside (3) of the cap without clogging the opening (6) of the ventilation hole (5). If you accidentally swallow it and get it in your throat, you will need to ensure breathing.
The air passage in the ventilation hole (5) can be surely secured without the risk of blockage, and the tip writing portion of the writing instrument is set to the opening portion (6) of the ventilation hole (5) by the guide portion (14). It is not necessary to make the writing instrument insertion side of the outer cap sufficiently long so as not to get caught.

Further, even when an infant or the like inadvertently accidentally swallows the writing instrument cap (1) and causes it to get stuck in the throat, in order to avoid the suffocation state caused by the writing instrument cap (1). Since the opening area of the opening (6) of the ventilation hole (5) can be sufficiently expanded along the inner cap (3), even if the writing instrument cap (1) is clogged in the throat. Since it is possible to secure sufficient breathing over a long period of time as well as securing minimum breathing as in the past, it will increase the opportunity to be directly treated by medical personnel in such an accident, In addition to being able to sufficiently improve the safety against accidental ingestion by infants,
Even if the area of the opening (6) of the ventilation hole (5) is sufficiently enlarged, the strength of the writing instrument cap (1) itself can be sufficiently secured, so that the writing instrument main body (8) is strongly fixed to the writing instrument cap (8). Even if the inside of the cap (1) is inadvertently strongly pressed into the cap (3), the cap (1) itself can be reliably prevented from being damaged by deformation or the like.

[0015]

As described above, even when an infant or the like inadvertently swallows and gets stuck in the throat, the cap body is formed so as to avoid breathing and to ensure breathing. The opening of the ventilation hole is opened radially inward at the outer wall edge of the inner cap to maintain sufficient airtightness when inserted into the writing instrument body and to evaporate the volatile components contained in the ink. Even if an infant swallows and accidentally swallows it and gets stuck in the throat, the opening of the ventilation hole can be expanded as much as possible along the inner wall surface of the cap, so more breathing can be secured, so safety itself In addition, the writing part of the writing instrument main body is damaged by being caught in the opening without lengthening the outer cap and dust on the paper surface adhering to this writing part or dust entering from the top surface of the cap. Clogging The inner wall of the connecting part that suspends the inner cap can be made wide enough to ensure the retention of the inner cap, and the length of the outer cap is not limited, which allows free design choice. It has an excellent effect that the life of the writing instrument itself can be sufficiently ensured.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a writing instrument cap that is an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a writing instrument cap that is an embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view of a main part of a writing instrument cap that is an embodiment of the present invention.

FIG. 4 is a diagram showing a state in which the writing instrument main body is attached to the writing instrument cap according to the embodiment of the present invention.

FIG. 5 is a plan view of the outer cap of the present invention.

FIG. 6 is a vertical cross-sectional perspective view of the outer cap of the present invention.

FIG. 7 is a plan view of a conventional one.

FIG. 8 is a vertical perspective view of a conventional one.

[Explanation of symbols]

 1 Writing Instrument Cap 2 Cap Body 2'Cap Body Inner Wall 3 Cap Inside 4 Cap Outside 5 Vent Hole 6 (Ventilation Hole) Opening 7 Inner Cap Outer Wall Surface 8 Writing Instrument Body 9 Writing Part 10 Space 11 Connecting Part 12 Gap 13 Connecting Part Inner wall 14 Guide

Claims (1)

[Claims] 1. An inner cap, which is formed with a gap between the outer cap and the outer cap and hermetically accommodates the tip writing portion of the writing instrument main body, wherein the inner wall of the outer cap and the outer wall of the inner cap are opened. A ventilation hole that constitutes a coupling portion that couples in the vicinity of the end and that communicates in the axial direction from the gap is formed through the coupling portion of the outer cap and the inner cap, and the ventilation hole is formed on the end surface of the inner cap outer wall. A writing instrument cap that opens inward.