JP2000043474A - Spring structure of retracting and extending type writing utensil - Google Patents

Spring structure of retracting and extending type writing utensil

Info

Publication number
JP2000043474A
JP2000043474A JP10229295A JP22929598A JP2000043474A JP 2000043474 A JP2000043474 A JP 2000043474A JP 10229295 A JP10229295 A JP 10229295A JP 22929598 A JP22929598 A JP 22929598A JP 2000043474 A JP2000043474 A JP 2000043474A
Authority
JP
Japan
Prior art keywords
spring
writing
tip
barrel
retracting
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
JP10229295A
Other languages
Japanese (ja)
Inventor
Shigeki Maruyama
茂樹 丸山
Soji Onuki
壮二 大貫
Nobuo Yokouchi
伸生 横内
Original Assignee
Pentel Kk
ぺんてる株式会社
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 Pentel Kk, ぺんてる株式会社 filed Critical Pentel Kk
Priority to JP10229295A priority Critical patent/JP2000043474A/en
Publication of JP2000043474A publication Critical patent/JP2000043474A/en
Granted legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a structure, in which the edge formed at the end part of a spring does not bite a flange and the inner stepped surface of a head part outer tube at the taking of the head part outer tube off an outer tube main body. SOLUTION: In a writing utensil, in which a tip fitting 3 is detachably attached to the tip of a shaft tube 1 and a writing body energized backwards by a springy member is retractably and extendibly arranged in the shaft tube, the springy member is made of a coiled spring and an inclined surface is formed at at least one end part of the coiled spring. In the writing utensil, in which the tip fitting is detachably attached to the tip of the shaft tube and the writing body energized backwards by the springy member is retractably and extendibly arranged in the shaft tube, the springy member is made of a coiled spring, and at least one end part of which is bent to the compressing direction of the spring.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、軸筒の先端に先具
を着脱自在に有してなり、また、その軸筒内に弾撥部材
によって後方に付勢した筆記体を出没可能に配置してな
る出没式の筆記具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a tip attached to a tip of a barrel so as to be detachable, and a writing body urged rearward by a resilient member is disposed in the barrel so as to be retractable. The present invention relates to a haunting writing instrument.
【0002】[0002]
【従来の技術】一例として、特公平2−47357号公
報を挙げ説明する。該公報には、外筒本体の先端に頭部
外筒を螺入装着することによって着脱自在に配置し、ま
た、その外筒本体内にバネによって後方に付勢した芯繰
り出し機構を出没可能に配置したダブルノック式ペンシ
ルが記載されている。さらに、詳述すると、前記バネの
前端部は頭部外筒の内段面に当接しており、後端部は芯
繰り出し機構に固定されているつばに当接している。
2. Description of the Related Art As an example, Japanese Patent Publication No. 2-47357 will be described. According to the publication, a head outer cylinder is detachably arranged by screwing and mounting a head outer cylinder at a tip of an outer cylinder main body, and a core feeding mechanism urged rearward by a spring in the outer cylinder main body can be retracted. An arranged double knock pencil is described. More specifically, the front end of the spring is in contact with the inner step surface of the outer cylinder of the head, and the rear end is in contact with the collar fixed to the core feeding mechanism.
【0003】[0003]
【本発明が解決しようとする課題】しかし、この様な機
構の筆記具であっては、外筒本体から頭部外筒を外す
際、前記バネの端部に形成されている角(エッジ)が、
つばや頭部外筒の内段面に喰い込んでしまったり、微細
な凹凸(バリなど)に係合してしまったりして、バネ自
体も共に回転しようとはするものの、両端が係合してい
るため回転することができず、つまり、外筒と頭部筒体
がバネを介して連結・固定されてしまった状態となり、
その結果、外すことができない場合があった。ここで、
必要以上に回転力を与えてしまうと、バネを外側の方向
に膨らませてしまい、バネとしての機能を失わさせてし
まうものであった。
However, in the writing implement having such a mechanism, when the head outer cylinder is removed from the outer cylinder main body, a corner (edge) formed at an end of the spring is formed. ,
Although the spring itself tries to rotate together with the collar or the inner step surface of the outer cylinder of the head or engages with fine irregularities (burrs, etc.), both ends engage. It cannot rotate because it is, that is, the outer cylinder and the head cylinder are connected and fixed via a spring,
As a result, there were cases where it could not be removed. here,
If a rotational force is applied more than necessary, the spring expands outward and loses its function as a spring.
【0004】[0004]
【課題を解決するための手段】本発明は、上記問題点に
鑑みてなされたものであり、軸筒の先端に先具を着脱自
在に有してなり、また、その軸筒内に弾撥部材によって
後方に付勢した筆記体を出没可能に配置してなる筆記具
であって、前記弾撥部材をコイル状スプリングとなすと
ともに、そのコイル状スプリングの少なくとも一方の端
部に傾斜面を形成したことを第1の要旨とし、また、軸
筒の先端に先具を着脱自在に有してなり、また、その軸
筒内に弾撥部材によって後方に付勢した筆記体を出没可
能に配置してなる筆記具であって、前記弾撥部材をコイ
ル状スプリングとなすとともに、そのコイル状スプリン
グの少なくとも一方の端部をスプリングの収縮方向に折
り曲げたことを第2の要旨とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a tip which is detachably provided at the tip of a shaft cylinder. A writing instrument in which a writing body urged rearward by a member is disposed so as to be able to protrude and retract, wherein the repelling member is formed as a coiled spring, and an inclined surface is formed at at least one end of the coiled spring. In the first gist, a tip is detachably provided at the tip of the barrel, and a writing body urged rearward by a resilient member is disposed in the barrel so as to be able to come and go. In a second aspect of the present invention, the repelling member is a coil spring and at least one end of the coil spring is bent in a contraction direction of the spring.
【0005】[0005]
【実施例】図1〜図2に第1例を示す。軸筒1の内部に
は、中軸2が前後動自在に配置されており、また、軸筒
1の前端には先具3が螺着などにより着脱自在に固定さ
れている。前記中軸2の内部には、芯繰り出し機構4が
配置されており、また、中軸2の外周の長手方向には縦
リブ5が放射状に形成されている。中軸2の強度を向上
させるためになされた構造である。そして、その縦リブ
5の先端には、1つおきに山形状の傾斜面6が形成され
ている。さらに、前記中軸2の前端には芯戻り止め部材
7を内設した先部材8が螺着などにより着脱自在に固定
されている。そして、この芯繰り出し機構4を有する中
軸2は、コイル状スプリングなどの出没スプリング9に
よって常に後方に付勢されている。
1 and 2 show a first embodiment. Inside the barrel 1, a center shaft 2 is disposed so as to be movable back and forth, and a leading end 3 is detachably fixed to the front end of the barrel 1 by screwing or the like. A core feeding mechanism 4 is disposed inside the center shaft 2, and a longitudinal rib 5 is formed radially in the longitudinal direction of the outer periphery of the center shaft 2. This is a structure made to improve the strength of the center shaft 2. Further, a mountain-shaped inclined surface 6 is formed at every other end of the vertical rib 5. Further, a tip member 8 having a center detent member 7 provided therein is detachably fixed to the front end of the center shaft 2 by screwing or the like. The center shaft 2 having the center feeding mechanism 4 is constantly urged rearward by a retractable spring 9 such as a coil spring.
【0006】前記芯繰り出し機構4について説明する
が、第2例を示す図3と同様な構成をしているので、図
3を基に説明する。芯繰り出し機構4は、複数の芯を貯
蔵する芯タンク(押圧部材)10とその芯タンク10の
前端に固定され芯の把持・開放を行うチャック体11
と、そのチャック体11の開放・閉鎖を行うチャックリ
ング12、並びに、芯繰り出し機構4を常に後方に付勢
し、前記チャック体11を閉鎖状態にせしめるチャック
スプリング13などから構成されている。尚、本例で
は、そのチャックスプリング13の弾撥力は、前記出没
スプリング9の弾撥力よりも弱く設定している。以上、
本例においては、中軸2や芯繰り出し機構4などによっ
てシャ−プペンシルユニット(筆記体)が構成されてい
る。
The core feeding mechanism 4 will be described. The configuration is the same as that of FIG. 3 showing the second example, so that the description will be made with reference to FIG. The lead-out mechanism 4 includes a lead tank (pressing member) 10 for storing a plurality of leads and a chuck body 11 fixed to the front end of the lead tank 10 for gripping and releasing the lead.
And a chuck ring 12 for opening and closing the chuck body 11, and a chuck spring 13 for constantly urging the lead-out mechanism 4 rearward so as to close the chuck body 11. In the present embodiment, the elasticity of the chuck spring 13 is set to be weaker than the elasticity of the spring 9. that's all,
In this embodiment, a sharp pencil unit (cursive) is constituted by the center shaft 2 and the center feeding mechanism 4.
【0007】ここで、前記軸筒1の先端に螺着されてい
る先具3の内面には、前記出没スプリング7の前端部を
当接する内面段部14が形成されており、その内面段部
14は、極力平坦面に加工されているが、その平坦面部
にめっき処理を施しても良く、また、潤滑剤などを塗布
しても良い。先具3を軸筒1から外す際、或は、取り付
ける際、前記出没スプリング9の前端部が先具3の内面
段部14をスム−ズに摺動するようにしたのである。ま
た、前記出没スプリング9の両端部には、傾斜面15が
形成されており(図2参照)、その上端の傾斜面15が
前記中軸2の縦リブ5の山形傾斜面6に当接している。
[0007] An inner step 14 is formed on the inner surface of the leading tool 3 screwed to the tip of the barrel 1 to abut the front end of the spring 7. 14 is processed as flat as possible, but the flat surface may be plated or a lubricant may be applied. The front end of the spring 9 slides smoothly on the inner step 14 of the front tool 3 when the front tool 3 is removed from or attached to the barrel 1. At both ends of the spring 9, inclined surfaces 15 are formed (see FIG. 2), and the inclined surface 15 at the upper end is in contact with the angled inclined surface 6 of the vertical rib 5 of the center shaft 2. .
【0008】尚、軸筒1の後方には、前述したシャ−プ
ペンシルユニットを出没させる、例えばデビットカム機
構などが配置されているが、一般的な機構であるのでそ
の図示を省略する。第2例を図3〜図5に示し説明す
る。筆記具自体は第1例と同様な構成をしているので、
その説明を省略する。本例の出没スプリング16の両端
部近傍には、フラットな面17が形成されている。前例
と同様に、このフラットな面17が、山形傾斜面6や内
面段部14をスム−ズに乗り越え、あるいは摺動する。
A debit cam mechanism, for example, which allows the above-mentioned sharp pencil unit to protrude and retract, is disposed behind the shaft cylinder 1. However, since it is a general mechanism, its illustration is omitted. A second example will be described with reference to FIGS. Since the writing instrument itself has the same configuration as the first example,
The description is omitted. Flat surfaces 17 are formed near both ends of the spring 16 in this example. As in the previous example, the flat surface 17 smoothly climbs over or slides over the angled slope 6 and the inner step 14.
【0009】第3例を図6〜図8に示し説明する。本例
の出没スプリング18は、その両端部が外方向に開くと
共に、出没スプリングの収縮方向に折り曲げられている
(折り曲げ部19)。この折り曲げ部19が、山形傾斜
面6や内面段部14をスム−ズに乗り越え、あるいは摺
動する。第4例を図9〜図11に示し説明する。本例の
出没スプリング20は、その両端部が外径はスプリング
本体と同様にして、出没スプリングの収縮方向に折り曲
げられている(折り曲げ部21)。この折り曲げ部21
が、山形傾斜面6や内面段部14をスム−ズに乗り越
え、あるいは摺動する。前記第3例に比し、内面段部1
4の上方に形成されているガイド孔22に嵌挿され、出
没スプリングの振れ防止、並びに、位置決め性が向上す
る。
A third example will be described with reference to FIGS. The retractable spring 18 of this example has both ends opened outwardly and is bent in the contraction direction of the retractable spring (bent portion 19). The bent portion 19 smoothly moves over or slides over the angled inclined surface 6 and the inner step portion 14. A fourth example will be described with reference to FIGS. The retractable spring 20 of this example has both ends bent in the contraction direction of the retractable spring in the same outer diameter as the spring body (bent portion 21). This bent portion 21
Moves smoothly or slides over the angled slope 6 and the inner step 14. As compared with the third example, the inner surface step portion 1
The projection spring 22 is fitted and inserted into the guide hole 22 formed above the projection 4 to prevent the spring of the retracting spring from moving and to improve the positioning.
【0010】[0010]
【作用】先具3を軸筒1から外す際、万が一、先具3と
ともに前記出没スプリング9が回転してしまっても、出
没スプリング9の後端の傾斜面が中軸2の縦リブ5の山
形傾斜面6をスム−ズに乗り越える。また、万が一、出
没スプリング9の後端の傾斜面が中軸2の縦リブ5の山
形傾斜面6に喰い付いてしまっても、先具3の内面段部
14を出没スプリング9の前端の傾斜面が摺動する。
When the leading tool 3 is removed from the barrel 1, even if the spring 9 is rotated together with the leading tool 3, the inclined surface of the rear end of the spring 9 is angled to the vertical rib 5 of the center shaft 2. Get over the slope 6 smoothly. Also, even if the inclined surface at the rear end of the spring 9 is bitten by the angled inclined surface 6 of the longitudinal rib 5 of the center shaft 2, the step 14 on the inner surface of the leading tool 3 is inclined at the front end of the spring 9 Slides.
【0011】以上、芯繰り出し機構を出没させる筆記具
を例に挙げ説明したが、後端ノック式のボ−ルペンに適
用しても良く、また、後端ノック式に限らず、サイドノ
ック式のシャ−プペンシルやボ−ルペンに適用しても良
い。
The above description has been made with reference to the writing implement for inclining and retracting the lead-out mechanism. However, the present invention may be applied to a rear-end knocking ball pen, and is not limited to the rear-end knocking type pen. -It may be applied to pencils and ball pens.
【0012】[0012]
【発明の効果】本発明は、軸筒の先端に先具を着脱自在
に有してなり、また、その軸筒内に弾撥部材によって後
方に付勢した筆記体を出没可能に配置してなる筆記具で
あって、前記弾撥部材をコイル状スプリングとなすとと
もに、そのコイル状スプリングの少なくとも一方の端部
に傾斜面を形成したことを第1の要旨とし、また、軸筒
の先端に先具を着脱自在に有してなり、また、その軸筒
内に弾撥部材によって後方に付勢した筆記体を出没可能
に配置してなる筆記具であって、前記弾撥部材をコイル
状スプリングとなすとともに、そのコイル状スプリング
の少なくとも一方の端部をスプリングの収縮方向に折り
曲げたことを第2の要旨としたので、先具を軸筒に対し
て回転させても、弾撥部材の少なくとも1方の端部が摺
動するので、弾撥部材が外方向に開いてしまうこともま
く、また、先具の脱着作業をスム−ズに行うことができ
る。
According to the present invention, a tip is detachably provided at the tip of a barrel, and a writing body urged rearward by a resilient member is disposed in the barrel so as to be able to protrude and retract. A writing instrument according to claim 1, wherein said repellent member is a coil spring, and a slope is formed at at least one end of said coil spring. A writing instrument comprising a writing tool detachably provided therein, and a writing body urged rearward by a resilient member disposed in the shaft cylinder so as to be able to protrude and retract. In addition, the second gist is that at least one end of the coil spring is bent in the contraction direction of the spring. The other end slides, Sow also wood will open outward, also the desorption work ahead implement Sum - can be done's.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明を示す要部縦断面図。FIG. 1 is a vertical sectional view showing a main part of the present invention.
【図2】図1の弾撥部材を示す正面図。FIG. 2 is a front view showing the elastic member of FIG. 1;
【図3】第2例を示す要部縦断面図。FIG. 3 is a longitudinal sectional view of a main part showing a second example.
【図4】図3の弾撥部材を示す正面図。FIG. 4 is a front view showing the elastic member of FIG. 3;
【図5】図4の右側面図。FIG. 5 is a right side view of FIG. 4;
【図6】第3例を示す要部縦断面図。FIG. 6 is a longitudinal sectional view of a main part showing a third example.
【図7】図6の弾撥部材を示す正面図。FIG. 7 is a front view showing the elastic member of FIG. 6;
【図8】図7の右側面図。FIG. 8 is a right side view of FIG. 7;
【図9】第4例を示す要部縦断面図。FIG. 9 is a longitudinal sectional view of a main part showing a fourth example.
【図10】図9の弾撥部材を示す正面図。FIG. 10 is a front view showing the elastic member of FIG. 9;
【図11】図10の右側面図。FIG. 11 is a right side view of FIG.
【符号の説明】[Explanation of symbols]
1 軸筒 2 中軸 3 先具 4 芯繰り出し機構 5 縦リブ 6 傾斜面 7 芯戻り止め部材 8 先部材 9 出没スプリング 10 芯タンク 11 チャック体 12 チャックリング 13 チャックスプリング 14 内面段部 15 傾斜面 16 出没スプリング 17 フラットな面 18 出没スプリング 19 折り曲げ部 20 出没スプリング 21 折り曲げ部 22 ガイド孔 Reference Signs List 1 shaft cylinder 2 center shaft 3 leading tool 4 core feeding mechanism 5 vertical rib 6 inclined surface 7 core detent member 8 leading member 9 projecting spring 10 core tank 11 chuck body 12 chuck ring 13 chuck spring 14 inner surface step 15 inclined surface 16 retracting Spring 17 Flat surface 18 Retractable spring 19 Folded part 20 Retractable spring 21 Folded part 22 Guide hole
フロントページの続き Fターム(参考) 2C353 FE02 FE14 FE16 HA01 HA06 HA09 HC04 HC06 3J059 AB07 BA01 BD01 CA20 GA50Continued on the front page F term (reference) 2C353 FE02 FE14 FE16 HA01 HA06 HA09 HC04 HC06 3J059 AB07 BA01 BD01 CA20 GA50

Claims (2)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 軸筒の先端に先具を着脱自在に有してな
    り、また、その軸筒内に弾撥部材によって後方に付勢し
    た筆記体を出没可能に配置してなる筆記具であって、前
    記弾撥部材をコイル状スプリングとなすとともに、その
    コイル状スプリングの少なくとも一方の端部に傾斜面を
    形成したことを特徴とする出没式筆記具のバネ構造。
    1. A writing implement having a tip attached to a tip end of a barrel so as to be detachable, and a writing body urged rearward by a resilient member disposed in the barrel so as to be able to protrude and retract. A spring structure for a retractable writing instrument, wherein the repelling member is formed as a coil spring, and an inclined surface is formed on at least one end of the coil spring.
  2. 【請求項2】 軸筒の先端に先具を着脱自在に有してな
    り、また、その軸筒内に弾撥部材によって後方に付勢し
    た筆記体を出没可能に配置してなる筆記具であって、前
    記弾撥部材をコイル状スプリングとなすとともに、その
    コイル状スプリングの少なくとも一方の端部をスプリン
    グの収縮方向に折り曲げたことを特徴とする出没式筆記
    具のバネ構造。
    2. A writing implement having a tip attached to a tip end of a shaft cylinder in a detachable manner, and a writing body urged rearward by a resilient member disposed in the shaft cylinder so as to be able to protrude and retract. The spring structure of a retractable writing instrument, wherein the repelling member is a coil spring, and at least one end of the coil spring is bent in a contraction direction of the spring.
JP10229295A 1998-07-30 1998-07-30 Spring structure of retracting and extending type writing utensil Granted JP2000043474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10229295A JP2000043474A (en) 1998-07-30 1998-07-30 Spring structure of retracting and extending type writing utensil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10229295A JP2000043474A (en) 1998-07-30 1998-07-30 Spring structure of retracting and extending type writing utensil

Publications (1)

Publication Number Publication Date
JP2000043474A true JP2000043474A (en) 2000-02-15

Family

ID=16889904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10229295A Granted JP2000043474A (en) 1998-07-30 1998-07-30 Spring structure of retracting and extending type writing utensil

Country Status (1)

Country Link
JP (1) JP2000043474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007130962A (en) * 2005-11-14 2007-05-31 Sailor Pen Co Ltd:The Retractable writing utensil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007130962A (en) * 2005-11-14 2007-05-31 Sailor Pen Co Ltd:The Retractable writing utensil

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