JP4076065B2 - Writing pen or makeup pen - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in the structure of a writing pen having a knock involved in the advancement of a lead or a knock of a cosmetic pen.
[0002]
[Prior art]
A writing pen or makeup pen that uses a knock has a structure in which the lead and the knock are moved back to the original position by an elastic spring inside the pen body after the lead is moved forward by pressing against the knock. is doing.
[0003]
A typical example of a pen using such a knock is a mechanical pencil, a ballpoint pen, a composite pen, or a composite makeup pen.
[0004]
As shown in FIG. 2 , in most cases, the writing pen or the knock of the makeup pen is slid on the inner surface of the cylindrical portion 3 forming the pen body, and on the inner surface. Although it is divided into the non-sliding member 12 which does not move, both are integrally formed.
[0005]
Since the writing pen or the cosmetic pen using the conventional knock 1 uses a non-stretchable material such as a metal, when sliding with the cylindrical portion 3 of the pen body, Unnatural noise is often generated and the user cannot avoid discomfort.
[0006]
However, no specific proposal has been made about the configuration of the knock 1 itself that improves such a point.
[0007]
[Problems to be solved by the invention]
In order to solve the above-described problems of the prior art, the present invention provides a writing pen or makeup pen that can sufficiently reduce the occurrence of noise in a writing pen or makeup pen that employs knocking. The issue is to provide.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the structure of the present invention is a sliding slide that slides on the inner surface of the cylindrical portion that forms the pen body in the writing pen or the makeup pen knocking involved in the advancement of the lead. A non-sliding member that does not slide on the inner surface and a part of the non-sliding member, and a stretchable material is adopted at a position adjacent to the sliding member. It is composed of a writing pen or a makeup pen based on the use of a non-stretchable material at the position .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
As is apparent from the above solution, the present invention has a basic feature that a knock used in a writing pen or a makeup pen partially employs a stretchable material.
[0010]
FIG. 1 shows an embodiment of the present invention, in which a sliding member 11 is provided at an intermediate position between a front end portion and a rear end portion, is a part of a non-sliding member 12 and is adjacent to the sliding member 11. A stretchable material 21 is used at a position, and a non-stretchable material is used at another position.
[ 0011 ]
In the basic configuration, it is possible to adopt an embodiment in which the sliding member 11 is located at the tip.
[ 0012 ]
As the stretchable material 21, plastic or rubber (including natural rubber) is often used. However, the material 21 is not limited thereto, and for example, non-woven fabric or the like can be used.
[ 0013 ]
As in the present invention, when the knock 1 is moved by adopting the stretchable material 21 for a part of the knock 1, it is based on sliding with the inside of the cylindrical portion 3 forming the pen body. The generation of unpleasant noise is reduced at a considerable rate, and by this reduction, it is possible for the user to sufficiently reduce the unpleasant sensation due to the noise generated by sliding compared to the case of the prior art. is there.
[ 0014 ]
As a cause of reducing the occurrence of such noise, it can be assumed that the unpleasant vibration that causes noise is absorbed by the material 21, but the physics-causal relationship relating to the above-described action. Is not well understood.
[ 0015 ]
In the following, description will be made in accordance with examples.
[ 0016 ]
【Example】
In the present invention, the silencing effect due to the stretchable material is ultimately closely related to the action of absorbing or mitigating minute vibrations of the sliding member 11.
[ 0017 ]
In the embodiment, as the material, a sponge-like material having voids and a material having high elasticity such as foamed plastic having fine bubbles are employed.
[ 0018 ]
In the case of such a material having a remarkable elasticity, the degree of absorption of the vibration of the sliding member 11 is large, so that it is possible to realize a silencing effect with a smaller area than a material having a normal elasticity. it can.
[ 0019 ]
【The invention's effect】
As described above, although the present invention has a simple configuration, the present invention exhibits a silencing effect that reduces the generation of noise that occurs when the knock moves, and its value is tremendous.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention, in which (a) shows a case where a sliding member is provided on the front end side, and (b) shows a sliding member on the front end side and the rear end side. The case where it is provided in the middle position is shown.
FIG. 2 is a side sectional view showing a state of a knock and a cylindrical portion according to the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Knock 11 Sliding member 12 Non- sliding member 13 Central axis 21 Stretchable material 22 Non-stretchable material 3 Cylindrical part

Claims (4)

In a writing pen or a makeup pen knock involved in the advancement of the lead, a sliding member that slides on the inner surface of the cylindrical portion forming the pen body, and a non-sliding member that does not slide on the inner surface Based on the fact that a non-slidable member is used as a part of a non-sliding member, and a stretchable material is adopted at a position adjacent to the slide member and a non-stretchable material is adopted at another position. Writing pen or makeup pen. 2. The writing pen or the makeup pen according to claim 1, wherein the sliding member is located between the front end side and the rear end side. 2. A writing pen or a makeup pen according to claim 1, wherein the sliding member is located on the tip side. The writing pen or cosmetic pen according to claim 1, wherein a sponge-like material having a gap in the inside or a foamed plastic having bubbles is used as the material having elasticity.

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