JPH0234070Y2 - - Google Patents
Info
- Publication number
- JPH0234070Y2 JPH0234070Y2 JP6282684U JP6282684U JPH0234070Y2 JP H0234070 Y2 JPH0234070 Y2 JP H0234070Y2 JP 6282684 U JP6282684 U JP 6282684U JP 6282684 U JP6282684 U JP 6282684U JP H0234070 Y2 JPH0234070 Y2 JP H0234070Y2
- Authority
- JP
- Japan
- Prior art keywords
- small
- tube nib
- nib
- small tube
- large diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000428 dust Substances 0.000 description 5
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Pens And Brushes (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
筆記具、特に、小管ペン先とこの小管ペン先内
を摺動可能に配置されて非筆記時には小管ペン先
の先端からその先端を突出する線材とを有する筆
記具。[Detailed description of the invention] "Industrial application field" Writing implements, especially a small tube nib and a wire that is slidably arranged inside the small tube nib and whose tip protrudes from the tip of the small tube nib when not writing. A writing instrument having
「従来の技術」
落錘や弾性部材などによつて摺動力を付与され
た線材は、適宜インキ通路を形成されてインキ吐
出を積極的に担う場合もあるが、小管ペン先内に
詰まるゴミを排除するのに役立つ。一方、小管ペ
ン先そのものがゴミを詰め難くするために、小管
ペン先の角部に丸みを付けられる。``Prior art'' A wire rod to which a sliding force is applied by a falling weight or an elastic member may be used to actively discharge ink by forming an appropriate ink passage. Helps eliminate. On the other hand, the corners of the small tube nib are rounded to make it difficult for the small tube nib itself to become clogged with dirt.
「考案が解決しようとする問題点」
小管ペン先がステンレス等の金属といつたよう
に力学的な力によつて塑性変形する材質よりなる
場合、バレル研摩等によつて角部の丸み付けをな
すと、往々にして、小管ペン先の中孔の開口部に
内方へ向う突出部が発生する（添付第３図参照）。
小管ペン先１に発生した突出部２は線材３の自由
な摺動を阻害し、本来のゴミ排除機能を満足させ
ないという悪影響を及ぼすことがある。小管ペン
先１の表面にめつきや物理蒸着法による耐摩耗性
皮膜を形成すると、概して、この突出部２による
悪影響は更に増長される。``Problem that the invention aims to solve'' When the small tube nib is made of a material that plastically deforms under mechanical force, such as metal such as stainless steel, it is necessary to round the corners by barrel polishing, etc. As a result, an inward protrusion often occurs at the opening of the hollow of the small tube nib (see attached FIG. 3).
The protrusion 2 generated on the small tube nib 1 may obstruct the free sliding of the wire 3 and may have an adverse effect of not fulfilling its original dust removal function. When a wear-resistant film is formed on the surface of the small tube nib 1 by plating or physical vapor deposition, the adverse effects of the protrusion 2 are generally further exacerbated.
突出部２は研摩粉を表面に付着した細線物を小
管ペン先１の中孔４に通して研摩するなどなすこ
とで除去はできる。しかし、面倒この上もない。 The protrusion 2 can be removed by passing a fine wire with abrasive powder attached to its surface through the hole 4 of the small tube nib 1 and polishing it. But it's not too much trouble.
本考案は上述した問題の改善を図り、有効活用
できる突出部を形成することを目的とする。 The present invention aims to improve the above-mentioned problems and to form a protrusion that can be used effectively.
「問題点を解決するための手段」
小管ペン先の中孔の先端開口部を大径部とす
る。大径部先端の突出部の内径が小径部の径より
小さくならないようにである。即ち、突出部の内
径をl1、小径部の径をl2としたとき、l1l2。"Means for solving the problem" The opening at the tip of the middle hole of the small tube nib is made into a large diameter part. This is to ensure that the inner diameter of the protruding portion at the tip of the large diameter portion does not become smaller than the diameter of the small diameter portion. That is, when the inner diameter of the protruding portion is l 1 and the diameter of the small diameter portion is l 2 , l 1 l 2 .
「作用」
小管ペン先の中孔の小径部は突出部の阻害を受
けずに摺動する線材の案内をする。また、小管ペ
ン先の中孔の大径部はインキ溜りになるととも
に、小管ペン先に侵入したゴミが固くならないた
めの空間としても働く。``Function'' The small diameter part of the medium hole of the small tube nib guides the sliding wire without being obstructed by the protrusion. In addition, the large diameter part of the inner hole of the small tube nib serves as an ink reservoir and also serves as a space to prevent dust that has entered the small tube nib from becoming hard.
「実施例」
添付第１図に第１実施例を示す。前述したのと
同一部位には同一の参照符号を付してある。ま
た、参照符号４ａ，４ｂがそれぞれ小管ペン先１
の中孔４の大径部及び小径部を示す。本例は小管
ペン先がストレート状の大径部４ａを有する場合
の例である。このようなストレート状の大径部４
ａは、中孔４を中刳り切削したり、小管ペン先１
の先端側から側壁ストレートなピンを圧入して小
管ペン先１を塑性変形させたりすることで形成で
きる。大径部４ａの長さは、長いとインキ溜め量
やゴミの固り防止の点で都合が良いが、長過ぎる
と小径部４ｂによる線材案内の役割が十分果され
なくなる。それゆえ、むしろ短く形成しておくの
がよい。"Example" A first example is shown in the attached FIG. 1. The same parts as described above are given the same reference numerals. In addition, reference numbers 4a and 4b are the small tube nib 1, respectively.
The large diameter part and the small diameter part of the medium hole 4 are shown. This example is an example in which the small tube nib has a straight large diameter portion 4a. Such a straight large diameter part 4
a is for cutting the hollow hole 4 or for cutting the small tube nib 1.
The small tube nib 1 can be formed by press-fitting a straight pin into the side wall from the tip side and plastically deforming the small tube nib 1. If the length of the large diameter part 4a is long, it is convenient in terms of the amount of ink reservoir and prevention of dust clumping, but if it is too long, the role of wire guide by the small diameter part 4b will not be sufficiently fulfilled. Therefore, it is better to keep it short.
次に、添付第２図に第２実施例を示す。本例は
テーパー状に拡開する大径部４ａを有する場合の
例である。このような大径部４ａは、例えば前述
した中刳り切削に用いる治具や圧入するピンに側
壁テーパー部を設けておくことで形成できる。そ
の際、治具やピンの先端を尖頭化しておけるから
位置合わせが容易で精度的にも良好となる。但
し、第１実施例に比べると、大径部４ａの長さが
長くなりがちであるので、テーパー度はなるべく
大きくしておくことが望まれる。 Next, a second embodiment is shown in the attached FIG. 2. This example is an example in which the large diameter portion 4a is expanded into a tapered shape. Such a large diameter portion 4a can be formed, for example, by providing a side wall taper portion on a jig used for the above-mentioned hollow cutting or a pin to be press-fitted. At this time, since the tips of the jigs and pins can be made sharp, alignment is easy and the accuracy is also good. However, since the length of the large diameter portion 4a tends to be longer than that in the first embodiment, it is desirable that the degree of taper be as large as possible.
「考案の効果」
突出部２によつて開口面積を小さくされる大径
部４ａはインキ溜りとなるとともに小管ペン先に
侵入したゴミをほぐすための空間としても働き、
一方、小径部４ｂによつて案内される線材３は、
突出部２の内径l1が小径部４ｂの径l2に対してl1
l2となしてあることから、突出部２の阻害を受
けずに小管ペン先１内を摺動し、その先端を出没
させる。従つて、ゴミ排除を十分に果せるととも
に潤沢なインキを吐出することができる。``Effect of the invention'' The large diameter portion 4a whose opening area is reduced by the protrusion 2 serves as an ink reservoir and also serves as a space for loosening dust that has entered the small tube nib.
On the other hand, the wire rod 3 guided by the small diameter portion 4b is
The inner diameter l 1 of the protruding part 2 is l 1 with respect to the diameter l 2 of the small diameter part 4b.
l 2 , it slides within the small tube nib 1 without being obstructed by the protrusion 2, and causes its tip to emerge and retract. Therefore, it is possible to sufficiently remove dust and discharge a rich amount of ink.
第１図、第２図はそれぞれ本考案の第１、第２
実施例を示す要部縦断面図、第３図は従来の技術
の問題を説明するための本考案に係る小管ペン先
の要部縦断面図。
１……小管ペン先、２……突出部、３……線
材、４……中孔、４ａ……大径部、４ｂ……小径
部。
Figures 1 and 2 are the first and second figures of the present invention, respectively.
FIG. 3 is a vertical cross-sectional view of the main part of the small tube nib according to the present invention for explaining the problems of the prior art. DESCRIPTION OF SYMBOLS 1...Small tube nib, 2...Protrusion part, 3...Wire rod, 4...Medium hole, 4a...Large diameter part, 4b...Small diameter part.
Claims (1)
置されて非筆記時には小管ペン先の先端からその
先端を突出する線材とを有する筆記具における小
管ペン先であつて、先端開口部を大径部とする大
径部と小径部とを有する中孔と、この大径部先端
の内方に向う突出部とを有し、突出部の内径を
l1、小径部の径をl2としたとき、l1l2とした筆記
具の小管ペン先。 A small-tube nib for a writing instrument having a small-tube nib and a wire that is slidably arranged inside the small-tube nib and protrudes from the tip of the small-tube nib when not writing, the tip opening having a large diameter. It has a medium hole having a large diameter part and a small diameter part, and a protruding part facing inward at the tip of the large diameter part, and the inner diameter of the protruding part is
A small tube nib of a writing instrument, where l 1 is the diameter of the small diameter part and l 2 is l 1 l 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282684U JPS60175679U (en) | 1984-04-27 | 1984-04-27 | writing instrument small tube nib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6282684U JPS60175679U (en) | 1984-04-27 | 1984-04-27 | writing instrument small tube nib |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60175679U JPS60175679U (en) | 1985-11-21 |
| JPH0234070Y2 true JPH0234070Y2 (en) | 1990-09-12 |
Family
ID=30592402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6282684U Granted JPS60175679U (en) | 1984-04-27 | 1984-04-27 | writing instrument small tube nib |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60175679U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2501219Y2 (en) * | 1990-02-06 | 1996-06-12 | 三菱鉛筆株式会社 | Writing instrument |
-
1984
- 1984-04-27 JP JP6282684U patent/JPS60175679U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60175679U (en) | 1985-11-21 |
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