JPH04185398A - Mechanism pencile - Google Patents

Mechanism pencile

Info

Publication number
JPH04185398A
JPH04185398A JP31105690A JP31105690A JPH04185398A JP H04185398 A JPH04185398 A JP H04185398A JP 31105690 A JP31105690 A JP 31105690A JP 31105690 A JP31105690 A JP 31105690A JP H04185398 A JPH04185398 A JP H04185398A
Authority
JP
Japan
Prior art keywords
tip
pipe
slider
inner cylinder
outer cylinder
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.)
Granted
Application number
JP31105690A
Other languages
Japanese (ja)
Other versions
JP3197897B2 (en
Inventor
Tsukasa Yamamoto
典 山本
Shuhei Kageyama
秀平 陰山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kotobuki and Co Ltd
Original Assignee
Kotobuki and Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kotobuki and Co Ltd filed Critical Kotobuki and Co Ltd
Priority to JP31105690A priority Critical patent/JP3197897B2/en
Publication of JPH04185398A publication Critical patent/JPH04185398A/en
Application granted granted Critical
Publication of JP3197897B2 publication Critical patent/JP3197897B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

PURPOSE:To prevent a pocket, etc., from being damaged by a front pipe by a method wherein a slidable slider with the front pipe is provided inside an outer pipe or a front member, the outer pipe is in contact with the rear part of an inner pipe, and a slide preventive device is provided to prevent the slider from moving back when the slider is pushed out. CONSTITUTION:While a mechanical pencile is carried, a lead and a front pipe 4 can be housed in the front end of an outer pipe or in a front member 1a by pushing the lead in knocked state, so that a pocket is prevented from being damaged by the front pipe 4. In the case the mechanical pencile is used for drawing as fixed pipe type, when a slide preventive device 8 is operated, an inner pipe 2 which is in contact with the rear part of the slide preventive device 8 is moved forward to push a slider 5 forward, causing the front pipe 4 of the slider 5 to project from an outer pipe 1 or the front member 1a, so that the slider 5 is prevented from sliding back. Thereby, drawing can be performed with a ruler used, and lead breakage due to bending of the front pipe 4 does not occur.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はスライドパイプ式の一般筆記用としても固定パ
イプ式の製図用としても使用できるシャープペンシルに
関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mechanical pencil that can be used both for general writing using a slide pipe type and for drafting using a fixed pipe type.

〔従来技術〕[Prior art]

従来のスライドパイプ式の一般筆記用シャープペンシル
は、筆記時にノック操作することによりスライダのスラ
イドパイプ(先パイプ)を先端より突出させ、ノック操
作の繰返しにより先バイブより芯を繰出し、筆記するこ
とができる。この場合、スライダの先パイプが摺動する
ので、芯折れせず、長時間筆記が可能である。携帯時は
ノック状態で芯先を押すことにより先バイブを外筒の先
端部または先具内に収納することができ、先パイプによ
るポケット等の損傷を回避することができる。
Conventional slide pipe type mechanical pencils for general writing use a knocking operation when writing to make the slider's slide pipe (tip pipe) protrude from the tip, and repeating the knocking operation allows the lead to be drawn out from the tip vibrator for writing. can. In this case, since the tip pipe of the slider slides, it is possible to write for a long time without breaking the lead. When carrying, the tip vibrator can be stored in the tip of the outer cylinder or in the tip by pushing the tip in the knocked state, and damage to pockets etc. caused by the tip pipe can be avoided.

一方、従来の固定パイプ式の製図用シャープペンシルは
、パイプが固定されているので、製図時に定規にパイプ
が触れても引込むおそれはなく、パイプのめくれは起こ
らない。
On the other hand, in conventional fixed-pipe drafting mechanical pencils, the pipe is fixed, so even if the pipe touches the ruler during drafting, there is no risk of it being pulled in, and the pipe does not turn over.

〔発明が解決しようとした課題〕[Problem that the invention sought to solve]

前者の従来例にあっては、先パイプが摺動するので、製
図用として使用することができないし、また後者の従来
にあっては、パイプが固定されているので、携帯時にパ
イプを引込めることができず、パイプによるポケット等
の損傷を回避することができないという課題がある。
In the former conventional example, the tip pipe slides, so it cannot be used for drafting, and in the latter conventional example, the pipe is fixed, so it can be retracted when carried. Therefore, there is a problem that damage to pockets and the like caused by the pipe cannot be avoided.

〔課題を解決するための手段〕[Means to solve the problem]

本発明シャープペンシルは上記課題を解決するため、第
1図示のように外筒1内に内筒2を摺動可能に挿設し、
該内筒2の外面に設けられた段部6とこれと対向する外
筒1又は先具1aの段部1bとの間には弾性体7を設け
、該内筒2内には芯送り出し機構3を、該外筒1又は先
具1a内には先バイブ4を有するスライダ7を摺動自在
に設け、前記外筒1には内筒2の後部に当接し、該スラ
イダ5を押出しその後方への摺動を阻止する摺動阻止装
置8を設けてなる構成としたものである。
In order to solve the above problems, the mechanical pencil of the present invention has an inner cylinder 2 slidably inserted into an outer cylinder 1 as shown in the first figure,
An elastic body 7 is provided between the stepped portion 6 provided on the outer surface of the inner tube 2 and the opposing stepped portion 1b of the outer tube 1 or tip 1a, and a core feeding mechanism is provided within the inner tube 2. 3, a slider 7 having a tip vibrator 4 is slidably provided in the outer cylinder 1 or the tip 1a, and contacts the rear part of the inner cylinder 2 in the outer cylinder 1, and pushes out the slider 5 to the rear thereof. This configuration is provided with a sliding prevention device 8 that prevents sliding.

〔作 用〕[For production]

スライドパイプ式の一般筆記用として使用する場合、従
来公知のように筆記時にノック操作することによりスラ
イダ5の先パイプ4が外筒1の先端部または先具1aよ
り突出し、ノック操作を繰返すことによりスライダ5の
先バイブ4より芯を繰出し、筆記することができること
になる。
When using a slide pipe type for general writing, as is conventionally known, by knocking during writing, the tip pipe 4 of the slider 5 protrudes from the tip of the outer cylinder 1 or the tip 1a, and by repeating the knocking operation. The lead can be drawn out from the vibrator 4 at the end of the slider 5 to write.

携帯時はノック状態で芯先を押すことにより芯及び先バ
イブ4を外筒1の先端部または先具1a内に収納するこ
とができ、先パイプ4によるポケット等の損傷を回避す
ることができることになる。
When carried, the lead and the tip vibrator 4 can be stored in the tip of the outer tube 1 or the tip 1a by pushing the tip of the tip in a knocked state, and damage to pockets etc. caused by the tip pipe 4 can be avoided. become.

また、固定パイプ式の製図用として使用する場合、摺動
阻止装置8を操作するとこれに後部を当接する内筒2が
前方へ移動し、スライダ5を前方へ押出して該スライダ
5の先パイプ4が外筒1の先端部または先具1aより突
出し、該スライダ5の後方への摺動が阻止されることに
なり、従来公知のように定規を用いて作図することがで
き、勿論、先パイプ4の約くれによる芯折れは起こらな
い。
In addition, when using a fixed pipe type for drawing, when the sliding prevention device 8 is operated, the inner cylinder 2 whose rear part is in contact with the sliding prevention device 8 moves forward, pushing the slider 5 forward and pushing the slider 5 toward the tip pipe 4. protrudes from the tip of the outer cylinder 1 or from the tip 1a, and prevents the slider 5 from sliding backwards.It can be drawn using a ruler as is conventionally known, and of course, the tip pipe The core does not break due to the shortening in 4.

〔実施例〕〔Example〕

以下図面により本発明の詳細な説明する。 The present invention will be explained in detail below with reference to the drawings.

第1図は本発明シャープペンシルの一実施例の構成を示
す縦断面図、第2図は本発明における要部の平面図であ
る。
FIG. 1 is a longitudinal sectional view showing the structure of an embodiment of the mechanical pencil of the invention, and FIG. 2 is a plan view of the main parts of the invention.

第1.第2図中、1は外筒、1aはこの外筒1の先端部
に螺着された先具、2は外筒1内に摺動自在に挿設され
た内筒である。この内筒2の外面に設けられた段部6と
これと対向する先具1aの段部1bとの間にはバネ7が
設けられている。内筒2内には従来公知の芯送出し機構
3が挿設されている。
1st. In FIG. 2, 1 is an outer cylinder, 1a is a tip screwed onto the tip of the outer cylinder 1, and 2 is an inner cylinder slidably inserted into the outer cylinder 1. A spring 7 is provided between the stepped portion 6 provided on the outer surface of the inner cylinder 2 and the opposing stepped portion 1b of the tip 1a. A conventionally known core feeding mechanism 3 is inserted into the inner cylinder 2 .

12は芯タンクで、その後部にはノック部が設けられて
いる。13は芯タンク12に係着されたチャック、14
はチャックリング、15はジャンクション、16はこの
ジャンクション15と芯タンク12間に挿設されたチャ
ック締付は弾性体9例えばバネ、17は外筒1に固定さ
れた筒体、18は中バイブで、これら12〜18は芯送
出し機構3を構成している。
12 is a wick tank, and a knock part is provided at the rear of the wick tank. 13 is a chuck attached to the core tank 12; 14;
15 is a chuck ring, 15 is a junction, 16 is an elastic body 9, such as a spring, for tightening the chuck inserted between this junction 15 and the core tank 12, 17 is a cylindrical body fixed to the outer cylinder 1, and 18 is a medium vibrator. , these 12 to 18 constitute the core feeding mechanism 3.

先具1a内には先バイブ4を有するスライダ5が摺動自
在に設けられており、外筒1には内筒2の後部に当接し
、該スライダ5を押出しその後方への摺動を阻止する摺
動阻止装置8が設けられている。
A slider 5 having a tip vibrator 4 is slidably provided in the tip 1a, and contacts the rear part of the inner tube 2 on the outer tube 1 to push out the slider 5 and prevent it from sliding backward. A sliding prevention device 8 is provided.

摺動阻止装置8は外筒1に設けられた円弧状孔9 (第
2図参照)と、この円弧状孔9内に挿入され内筒2の後
端に当接された突出部10と、この突出部10を円弧状
孔9内で枢支軸19を中心に回動操作する操作用円板1
1とよりなる。この実施例では操作円板11の下面に突
出部10が設けられている例であるが、操作レバーの下
面に突出部10が設けられた構成であってもよい。
The sliding prevention device 8 includes an arcuate hole 9 (see FIG. 2) provided in the outer cylinder 1, a protrusion 10 inserted into the arcuate hole 9, and abutted against the rear end of the inner cylinder 2. An operating disc 1 for rotating this protrusion 10 around a pivot shaft 19 within the arcuate hole 9
1 and more. In this embodiment, the protrusion 10 is provided on the lower surface of the operating disc 11, but the protrusion 10 may be provided on the lower surface of the operating lever.

円弧状孔9の前方端部9aは長手方向の中心線lより突
出部10の中心0を越えてなり、突出部10が円弧状孔
9の前方端部9aに係止されてスライダ5の後方への摺
動を阻止する構成になっている。9hは円弧状孔9の後
方端部、Sは突8810が前、後方端部9a 、 9b
間で回動する距離であり、スライダ5のストロークであ
る。
The front end 9a of the arcuate hole 9 extends beyond the center 0 of the protrusion 10 from the center line l in the longitudinal direction, and the protrusion 10 is locked to the front end 9a of the arcuate hole 9 to the rear of the slider 5. The structure is such that it prevents sliding. 9h is the rear end of the arcuate hole 9, S is the protrusion 8810 at the front, and rear ends 9a, 9b.
This is the distance that the slider 5 rotates between, and is the stroke of the slider 5.

上記の構成においてスライドパイプ式の一般筆記用とし
て使用する場合、従来公知のように筆記時にノック操作
すると、芯タンク12.チャック13がチャック締付は
バネ16に抗して勧進し、チャック13の前進によりス
ライダ5が前進してその先バイブ4が先具1aより突出
し、ノック操作を繰返すことによりスライダ5の先パイ
プ4より芯を繰出すことができ、筆記することができる
ことになる。
When using the slide pipe type for general writing in the above configuration, when a knock operation is performed during writing as is conventionally known, the lead tank 12. The chuck 13 urges the chuck to tighten against the spring 16, and as the chuck 13 moves forward, the slider 5 advances and the tip vibrator 4 protrudes from the tip 1a, and by repeating the knocking operation, the tip pipe 4 of the slider 5 moves forward. This means that you can draw out the lead more easily and write with it.

この場合、スライダ5の先バイブ4が摺動するので、芯
折れせず、長時間筆記が可能である。
In this case, since the vibrator 4 at the tip of the slider 5 slides, writing can be performed for a long time without breaking the lead.

携帯時はノック状態で芯先を押すことにより芯及び先バ
イブ4を先具1a内に収納することができ、先バイブ4
によるポケット等の損傷を回避することができることに
なる。
When carrying, the lead and the tip vibrator 4 can be stored in the tip 1a by pressing the tip of the tip in a knocked state, and the tip vibe 4 can be stored in the tip 1a.
This will prevent damage to pockets etc.

また、固定パイプ式の製図用として使用する場合、摺動
阻止装置8の操作円板11を枢支軸19を中心に回動操
作すると、操作円板11の突出部10が円弧状孔9の後
方端部9bより前方端部9aまで円弧状孔9内を枢支軸
19を中心に回動しながら該突出部10に当接された内
筒2を前方へ移動し、スライダ5を前方へ押出してスラ
イダ5の先パイプ4が先具1aより突出し、スライダ5
の後方への摺動が阻止されることになる。従って従来公
知のように定規を用いて作図することができ、勿論、先
バイブ4のめくれによる芯折れは起こらない。
In addition, when using the fixed pipe type for drafting, when the operation disk 11 of the sliding prevention device 8 is rotated about the pivot shaft 19, the protrusion 10 of the operation disk 11 is inserted into the arcuate hole 9. While rotating around the pivot shaft 19 inside the arcuate hole 9 from the rear end 9b to the front end 9a, the inner cylinder 2 in contact with the protrusion 10 is moved forward, and the slider 5 is moved forward. After extruding, the tip pipe 4 of the slider 5 protrudes from the tip 1a, and the slider 5
will be prevented from sliding backwards. Therefore, it is possible to draw the drawing using a ruler as is conventionally known, and of course, the core does not break due to the tip vibrator 4 turning over.

上記過程とは逆の操作を行うことにより、先パイプ4の
固定を解除することができる。
The fixation of the tip pipe 4 can be released by performing an operation opposite to the above process.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明によれば、外筒1内に内筒2を摺動
可能に挿設し、該内筒2の外面に設けられた段部6とこ
れと対向する外筒1又は先具1aの段部1bとの間には
弾性体7を設け、該内筒2内には芯送り出し機構3を、
該外筒1又は先具1a内には先バイブ4を有するスライ
ダ7を摺動自在に設け、前記外筒1には内筒2の後部に
当接し、該スライダ5を押出しその後方への摺動を阻止
する摺動阻止装置8を設けてなるので、スライドパイプ
式の一般筆記用としても固定パイプ式の製図用としても
使用でき、また携帯時は先パイプ4を外筒1の先端部ま
たは先具1a内に収納することができるので、先パイプ
4によるポケット等の損傷を回避することができる。
As described above, according to the present invention, the inner cylinder 2 is slidably inserted into the outer cylinder 1, and the step part 6 provided on the outer surface of the inner cylinder 2 and the outer cylinder 1 or the tip facing the step part 6 are provided on the outer surface of the inner cylinder 2. An elastic body 7 is provided between the step part 1b of the tool 1a, and a core feeding mechanism 3 is provided in the inner cylinder 2.
A slider 7 having a tip vibrator 4 is slidably provided in the outer cylinder 1 or the tip 1a, and the outer cylinder 1 is in contact with the rear part of the inner cylinder 2, and the slider 5 is pushed out and slid backward. Since it is equipped with a sliding prevention device 8 that prevents movement, it can be used for general writing with a slide pipe type or for drafting with a fixed pipe type, and when carried, the tip pipe 4 can be attached to the tip of the outer cylinder 1 or Since it can be stored in the tip 1a, damage to pockets etc. caused by the tip pipe 4 can be avoided.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明シャープペンシルの一実施例の構成を示
す縦断面図、第2r5!Jは本発明における要部の平面
図である。 ■・・・・・・外筒、1a・・・・・・先具、1b−・
・・・・段部、2・・・・・・内筒、3・・・・・・芯
送り出し機構、4・・・・・・先パイプ、5・・・・・
・スライダ、6・・・・・・段部、7・・・・・・弾性
体(バネ)、8・・・・・・摺動阻止装置、9・・・・
・・(円)弧状孔、9a・・・・・・前方端部、9b・
・・・・・後方端部、10−・・・・・突出部、11・
・・・・・操作部(円板)、19・・・・・・枢支軸、
l・・・・・・中心線、0・・・・・・中心。 矛2図 オ習會カ阻止装置 旦 スライダ5の ストローク
FIG. 1 is a longitudinal cross-sectional view showing the structure of an embodiment of the mechanical pencil of the present invention, No. 2r5! J is a plan view of essential parts in the present invention. ■・・・Outer cylinder, 1a・・・Tip, 1b-・
...Stepped portion, 2...Inner cylinder, 3...Core feed mechanism, 4...Tip pipe, 5...
・Slider, 6...Step part, 7...Elastic body (spring), 8...Sliding prevention device, 9...
...(circle) arcuate hole, 9a...front end, 9b.
...Rear end, 10-...Protrusion, 11.
......Operation unit (disk), 19...Pivot shaft,
l...Center line, 0...Center. Figure 2: Stroke of slider 5

Claims (4)

【特許請求の範囲】[Claims] (1)外筒(1)内に内筒(2)を摺動可能に挿設し、
該内筒(2)の外面に設けられた段部(6)とこれと対
向する外筒(1)又は先具(1a)の段部(1b)との
間には弾性体(7)を設け、該内筒(2)内には芯送出
し機構(3)を、該外筒(1)又は先具(1a)内には
先パイプ(4)を有するスライダ(5)を摺動自在に設
け、前記外筒(1)には内筒(2)の後部に当接し、該
スライダ(5)を押出しその後方への摺動を阻止する摺
動阻止装置(8)を設けてなるシャープペンシル。
(1) Slideably insert the inner cylinder (2) into the outer cylinder (1),
An elastic body (7) is provided between the step (6) provided on the outer surface of the inner cylinder (2) and the opposing step (1b) of the outer cylinder (1) or tip (1a). A core feeding mechanism (3) is provided in the inner cylinder (2), and a slider (5) having a tip pipe (4) is slidably provided in the outer tube (1) or the tip (1a). , and the outer cylinder (1) is provided with a sliding prevention device (8) that comes into contact with the rear part of the inner cylinder (2) to push out the slider (5) and prevent it from sliding backwards. pencil.
(2)摺動阻止装置(8)は外筒(1)に設けられた弧
状孔(9)と、この弧状孔(9)内に挿入され前記内筒
(2)の後部に当接された突出部(10)と、この突出
部(10)を前記弧状孔(9)内で回動操作する操作部
(11)とよりなる請求項第1項記載のシャープペンシ
ル。
(2) The sliding prevention device (8) is inserted into an arcuate hole (9) provided in the outer cylinder (1), and is inserted into this arcuate hole (9) and abuts against the rear part of the inner cylinder (2). The mechanical pencil according to claim 1, comprising a protrusion (10) and an operating part (11) for rotating the protrusion (10) within the arcuate hole (9).
(3)外筒(1)に設けた弧状孔(9)内を摺動阻止装
置(8)の突出部(10)が回動自在で、該突出部(1
0)が弾性体(7)に抗して、内筒(2)を前進可能と
した請求項第1項、第2項のいずれかに記載のシャープ
ペンシル。
(3) The protrusion (10) of the sliding prevention device (8) is rotatable within the arcuate hole (9) provided in the outer cylinder (1).
3. The mechanical pencil according to claim 1, wherein the inner cylinder (2) can move forward against the elastic body (7).
(4)弧状透孔(9)の前方端部は長手方向の中心線(
l)より突出部(10)の中心(O)を越えてなること
を特徴とした請求項第2項、第3項のいずれかに記載の
シャープペンシル。
(4) The front end of the arcuate through hole (9) is located at the center line in the longitudinal direction (
The mechanical pencil according to claim 2 or 3, characterized in that the projection (10) extends beyond the center (O) of the protrusion (10).
JP31105690A 1990-11-16 1990-11-16 mechanical pencil Expired - Fee Related JP3197897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31105690A JP3197897B2 (en) 1990-11-16 1990-11-16 mechanical pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31105690A JP3197897B2 (en) 1990-11-16 1990-11-16 mechanical pencil

Publications (2)

Publication Number Publication Date
JPH04185398A true JPH04185398A (en) 1992-07-02
JP3197897B2 JP3197897B2 (en) 2001-08-13

Family

ID=18012583

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31105690A Expired - Fee Related JP3197897B2 (en) 1990-11-16 1990-11-16 mechanical pencil

Country Status (1)

Country Link
JP (1) JP3197897B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0503085B1 (en) 1990-09-28 1997-01-15 Furukawa Denki Kogyo Kabushiki Kaisha Magnetically shielding structure

Also Published As

Publication number Publication date
JP3197897B2 (en) 2001-08-13

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