JP3034458B2 - Extruded ballpoint pen - Google Patents
Extruded ballpoint penInfo
- Publication number
- JP3034458B2 JP3034458B2 JP8024018A JP2401896A JP3034458B2 JP 3034458 B2 JP3034458 B2 JP 3034458B2 JP 8024018 A JP8024018 A JP 8024018A JP 2401896 A JP2401896 A JP 2401896A JP 3034458 B2 JP3034458 B2 JP 3034458B2
- Authority
- JP
- Japan
- Prior art keywords
- locking
- inner cylinder
- projections
- base end
- rotor
- 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 - Lifetime
Links
Landscapes
- Pens And Brushes (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、押出し式ボールペ
ンの改良に関するが、殊に押子、回転子などと共に押出
し機構を構成している内筒を軸筒に対して取付けるため
の内筒取付け手段の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an extrusion ballpoint pen, and more particularly to an inner cylinder mounting means for mounting an inner cylinder which constitutes an extrusion mechanism together with a pusher, a rotor and the like to a shaft cylinder. Regarding improvement.
【０００２】[0002]
【従来技術と課題】押子と、その押子とインキ管との間
に介在して押子が押動されると回転する回転子と、この
回転子を軸方向にガイドする軸方向の縦溝（又は縦溝と
相対的な縦突条）を内周面に有し、同縦溝（又は前記縦
突条）の先端部に変位した回転子が回転することによっ
て係合する係合段部を備えた内筒とで押出し機構が構成
された押出し式ボールペンが周知である。（以下、この
従来技術を第１従来技術と称す。） この第１従来技術は、内筒を軸筒内の所定位置に取付
け、かつインキ管先端部の筆書部が軸筒先端部から突出
した状態において落下等の衝撃を受けると、内筒の抜け
を防止することが難しいという課題があった。2. Description of the Related Art A presser, a rotor which is interposed between the presser and the ink tube and rotates when the presser is pushed, and an axial vertical guide which guides the rotor in the axial direction. An engagement step having a groove (or a vertical ridge relative to the vertical groove) on the inner peripheral surface, and the rotor displaced at the tip of the vertical groove (or the vertical ridge) is engaged by rotation. 2. Description of the Related Art An extrusion-type ballpoint pen in which an extrusion mechanism is configured by an inner cylinder having a portion is well known. (Hereinafter, this prior art will be referred to as a first prior art.) In this first prior art, the inner cylinder is attached to a predetermined position in the barrel, and the writing portion of the tip of the ink tube protrudes from the tip of the barrel. There is a problem that it is difficult to prevent the inner cylinder from coming off when receiving an impact such as dropping in a state where the inner cylinder is dropped.
【０００３】この課題の解決を目指した押出し式ボール
ペンが実公平７−４５３５５号公報で提案されている。
（以下、この従来技術を第２従来技術と称す。） 第２従来技術は、図６（ａ）、（ｂ）に示す如く、押子
（１’）と、当該押子（１’）とインキ管（２’）の間
に介在して押子（１’）による押圧を受けて回転可能な
回転子（３’）と、内面に回転子を前後方向にガイドす
る軸方向の縦溝（４’）とその縦溝（４’）の先端部位
に前進した回転子（３’）が回転することによって係止
可能なカム斜面段部（５’）をそれぞれ設けた内筒
（６’）を備えた押出機構を構成し、前記内筒（６’）
の前端部に半径方向の可撓性を有する弾性筒部（７’）
を設けてその側面部に設けた突起（８’）を軸筒
（９’）に設けた孔（１０’）に係合可能とし、前記回
転子（３’）の後退停止位置を弾性筒部（７’）より後
方位置に又回転子（３’）の前進停止位置を弾性筒部
（７’）の前記突起（８’）の略内側位置にそれぞれ対
応して設定したという構成である。An extrusion type ballpoint pen aiming at solving this problem is proposed in Japanese Utility Model Publication No. 7-45355.
(Hereinafter, this prior art is referred to as a second prior art.) As shown in FIGS. 6A and 6B, the second prior art includes a presser (1 ′) and a presser (1 ′). A rotor (3 ') interposed between the ink tubes (2') and rotatable by being pressed by the pusher (1 '), and an axial longitudinal groove () on its inner surface for guiding the rotor in the front-rear direction. 4 ') and an inner cylinder (6') provided with a cam slope step (5 ') which can be locked by rotating a rotor (3') advanced at the tip of the longitudinal groove (4 '). The inner cylinder (6 ′)
Elastic cylindrical part (7 ') having radial flexibility at the front end of the cylinder
So that the projection (8 ') provided on the side surface thereof can be engaged with the hole (10') provided on the shaft cylinder (9 '), and the retraction stop position of the rotor (3') is set at the elastic cylinder portion. (7 '), and the forward stop position of the rotor (3') is set to correspond to the substantially inner position of the projection (8 ') of the elastic tubular portion (7').
【０００４】かかる第２従来技術は、回転子の後退停止
位置及び前進停止位置を弾片部との位置関係で特定した
ので、第１従来技術の課題解決に寄与し得るのである
が、下記する問題点を有していることを見い出した。第
１に、内筒に形成された弾片部側面部に設けた突起は、
組立てる際に軸筒に挿入されるのであるが、その軸筒の
係止孔と位置合せする関係上突起の軸筒内における周方
向位置（軸筒内位置）を確認する必要があるにも拘ら
ず、軸筒が不透明であると突起の軸筒内位置を確認する
ことができず、突起と係止孔との位置合せに手間どり、
不透明軸筒の場合に組立作業が非能率に陥りやすい。In the second prior art, since the retreat stop position and the forward stop position of the rotor are specified by the positional relationship with the resilient portion, it can contribute to solving the problem of the first prior art. We found that we had a problem. First, the projection provided on the side surface of the bullet piece portion formed on the inner cylinder,
Although it is inserted into the barrel when assembling, it is necessary to confirm the circumferential position (position in the barrel) of the projection in the barrel because of the alignment with the locking hole of the barrel. If the shaft tube is opaque, the position of the protrusion in the shaft tube cannot be confirmed, and the positioning of the protrusion and the locking hole is troublesome,
In the case of an opaque shaft cylinder, the assembling work tends to be inefficient.
【０００５】第２に、内筒の前端部に形成された弾片部
の側面部に突起を設け、かつ軸筒の基端部から先端部側
に離れた内筒前端部対応部位に係止孔を開穿したという
構成であるため、組立てに際して突起が係止孔に係止さ
れる迄の長い間軸筒内周面と擦れ合い、突起の基端部に
長い間応力を与え、この応力に起因して軸筒に対する突
起の係止を不確実なものとなり、このことにより軸筒に
内筒を確実に固定し得ない場合が生じ、さらには押子に
よる回転動作中に内筒のガタが発生するといった不具合
が生じる。[0005] Second, a projection is provided on the side surface of a bullet piece formed at the front end of the inner cylinder, and is locked at a position corresponding to the front end of the inner cylinder, which is away from the base end of the shaft cylinder toward the front end. Since the hole is opened, the projection rubs against the inner peripheral surface of the barrel for a long time until it is locked by the locking hole during assembly, and a stress is applied to the base end of the protrusion for a long time. As a result, the engagement of the projection with the shaft cylinder becomes uncertain, which may make it impossible to securely fix the inner cylinder to the shaft cylinder. A defect such as occurrence of a problem occurs.
【０００６】本発明は、上述した第２従来技術に注目
し、第１に軸筒が不透明であっても組立て作業を能率良
く行い得、第２に弾片部の突起基端部に応力が与えられ
ても、軸筒に内筒を確実に固定し得るという第２従来技
術の内筒取付け手段が改良された押出し式ボールペンの
提供を目的とする。The present invention pays attention to the above-mentioned second prior art. First, the assembling operation can be performed efficiently even when the shaft cylinder is opaque. Even if given, it is an object of the present invention to provide an extruded ballpoint pen in which the inner cylinder mounting means of the second prior art, which can securely fix the inner cylinder to the shaft cylinder, is improved.
【０００７】[0007]
【課題を解決するための手段】本発明は、上記目的を達
成するため、押子と、該押子とインキ管の間に介在して
押子による押圧を受けて回転可能な回転子と、内面に回
転子を前後方向にガイドする軸方向の縦溝と、その縦溝
の先端部位に前進した回転子が回転することによって係
止可能なカム斜面段部をそれぞれ設けた内筒を備えた押
出機構を構成し、前記内筒の基端部近くに半径方向の弾
発性を有する弾片部を形成し、この弾片部の外面に係止
突起を突設すると共に、該係止突起から基端部寄りに弾
片部を外れた基端部近くに係止突起用の位置決め突起を
係止突起と縦列に突設し、軸筒の基端部近くに開穿した
係止孔に係止突起を、軸筒の基端部周縁において係止孔
と縦列に軸方向に凹設した係止突起用の位置決め凹部に
前記位置決め突起を夫々係止し、常時弾片部の内側に押
子を配置してなるという手段を講じる。In order to achieve the above object, the present invention provides a presser, a rotor interposed between the presser and the ink tube and rotatable by being pressed by the presser. An inner cylinder provided with an axial vertical groove for guiding the rotor in the front-rear direction on the inner surface, and a cam slope step portion which can be locked by rotating the advanced rotor at the tip of the vertical groove. A push-out mechanism is formed, a resilient portion having radial resilience is formed near the base end of the inner cylinder, and a locking protrusion is provided on an outer surface of the resilient portion. Positioning projections for the locking projections are provided in a row in close proximity to the base end of the barrel, and the positioning projections for the locking projections are protruded in tandem with the base end near the base end. The positioning projection is formed in a positioning recess for the locking projection, which is provided in the axial direction in a row in parallel with the locking hole at the peripheral edge of the base end of the barrel. To take measures that each engaged seals, formed by arranging the pusher on the inside of the always-bullet piece.
【０００８】また、内筒の基端部から係止突起及びこの
係止突起用の位置決め突起の配設方向に、かつそれら係
止突起と位置決め突起とを内筒６の軸方向に越えるクリ
ップを設けたという手段を講じることが好ましい。A clip which extends from the base end of the inner cylinder in the direction in which the locking projections and the positioning projections for the locking projections are disposed, and which passes over the locking projections and the positioning projections in the axial direction of the inner cylinder 6. It is preferable to take the means of providing.
【０００９】[0009]
【発明の実施の形態】図１〜図５を参照しながら説明す
る。押子１は軸筒９内に収容されているインキ管２の先
端部（図１で下端部）に構成されている筆書部１４を軸
筒９の先端部から出没させるための部材で、インキ管２
との間に回転子３を介在せしめて軸筒９に収容し、その
軸筒の基端部（図１で上端部）から押子１の操作端部を
突出せしめ、いつでも押動操作可能に構成して常時弾片
部７の内側に配置すると共に、押子１を中空に成形して
回転子用の押動部材１５の基端部を固く挿入して接続す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given with reference to FIGS. The pusher 1 is a member for allowing a writing portion 14 formed at the tip (the lower end in FIG. 1) of the ink tube 2 housed in the barrel 9 to protrude and retract from the tip of the barrel 9. Ink tube 2
The rotor 3 is interposed between the shaft cylinder 9 and accommodated in the barrel 9, and the operating end of the pusher 1 is protruded from the base end (the upper end in FIG. 1) of the barrel so that the push operation can be performed at any time. The pusher 1 is formed to be hollow, and the base end of the pusher 15 for the rotor is firmly inserted and connected.
【００１０】しかして、常時、押子１を弾片部７の内側
に配置することにより、係止突起８が内筒６の求心方向
に向って外圧を受けても、係止孔１０から外れることを
押子１で防止し、このことによって、内筒６が軸筒９か
ら抜けないように構成する。押動部材１５は、中空に成
形すると共に、先端部の周面の周方向に複数本の縦突条
１６を突設し、さらにその縦突条１６を含む先端部の端
面に回転子３のカム斜面１７に噛合するカム斜面１８を
形成し、前記縦突条１６を内筒６の縦溝４に嵌入して回
転止めすると共に、押子１の押動操作によって押動部材
１５の軸方向移動を可能ならしめ、該押動部材１５に回
転子３の小径基端部を緩く挿入し、その回転子が自己中
心線の周りを回転可能に構成する。However, by always arranging the pusher 1 inside the elastic piece 7, even if the locking projection 8 receives an external pressure in the centripetal direction of the inner cylinder 6, it is detached from the locking hole 10. This is prevented by the pusher 1, so that the inner cylinder 6 is prevented from falling out of the shaft cylinder 9. The pushing member 15 is formed in a hollow shape, has a plurality of vertical ridges 16 protruding in the circumferential direction of the peripheral surface of the distal end portion, and further has an end surface of the rotor 3 on the distal end portion including the vertical ridges 16. A cam slope 18 meshing with the cam slope 17 is formed, and the vertical ridge 16 is fitted into the vertical groove 4 of the inner cylinder 6 to stop rotation, and the pushing operation of the pusher 1 causes the pushing member 15 to move in the axial direction. The small-diameter proximal end of the rotor 3 is loosely inserted into the pushing member 15 so that the rotor can rotate around its own center line.
【００１１】インキ管２は、先端部に筆書部１４が構成
され、かつインキ管２自体の適所にスプリング受１９が
突設された周知の部材で、先端部近くにおいて先口２２
とスプリング受１９とにわたってスプリング２０を張架
して軸筒９内に収容し、該スプリング２０によって筆書
部１４が常に引込まれる方向に弾発せしめると共に、イ
ンキ管２の基端部をスプリング２０で回転子３の先端面
に圧接または該回転子の先端面突起２１に固く嵌合して
接続し、回転子３、押動部材１５及び押子１がいずれも
インキ管２と一緒にスプリング２０で筆書部１４の引込
み方向に弾発されるように構成する。The ink tube 2 is a well-known member in which a writing portion 14 is formed at the tip and a spring receiver 19 is protruded at an appropriate position of the ink tube 2 itself.
A spring 20 is stretched and accommodated in the barrel 9 over the spring receiver 19 and the spring 20 causes the writing portion 14 to be resiliently pulled in a direction in which it is always retracted. At 20, the tip of the rotor 3 is pressed against or firmly fitted to the projection 21 of the rotor, and the rotor 3, the push member 15 and the pusher 1 are all spring-loaded together with the ink tube 2. At 20, it is configured to be repelled in the retraction direction of the writing unit 14.
【００１２】回転子３は、内筒６の縦溝４に嵌入する複
数本の縦突条２３が先端部周面の周方向に突設され、そ
の先端部から小径基端部を突設して中空の押動部材１５
に緩く挿入可能に構成すると共に、縦突条２３を含む先
端部における押動部材１５との対向面側にその押動部材
１５のカム斜面１８に噛合する回転子３のカム斜面１７
を形成し、さらに先端部の端面に先端面突起２１が突設
された周知の部材である。The rotor 3 has a plurality of vertical protrusions 23 which are fitted into the vertical grooves 4 of the inner cylinder 6 and protrude in the circumferential direction of the peripheral surface of the distal end portion, and a small-diameter base end portion protrudes from the distal end portion. Hollow pushing member 15
And the cam slope 17 of the rotor 3 meshed with the cam slope 18 of the pushing member 15 at the tip end including the vertical ridge 23 on the side facing the pushing member 15.
Which is a well-known member in which a tip end surface projection 21 is provided on the end face of the tip end portion.
【００１３】回転子３は、図１示の状態で押子１及び押
動部材１５に押されると、内筒６の縦溝４に沿いてスプ
リング２０の弾発に抗しながら前進し、縦突条２３が縦
溝４から外れて縦突条２３のカム斜面１７が内筒６のカ
ム斜面段部５に対面すると、スプリング２０の弾発力で
縦突条２３のカム斜面１７がカム斜面段部５に圧接する
と同時に同段部のカム斜面を低い側へ向って滑って回転
し、カム斜面段部５のカム斜面におる谷部に係止して回
転を止め、同時に筆書部１４を先口２２から突出せしめ
て筆書可能ならしめる。（不図示） この際押動部材１５、押子１は、スプリング２０の影響
下から解放され、内筒６の軸方向に自由に往復動する。When the rotor 3 is pushed by the pusher 1 and the pushing member 15 in the state shown in FIG. 1, the rotor 3 moves forward along the vertical groove 4 of the inner cylinder 6 against the resilience of the spring 20, and moves vertically. When the ridge 23 is disengaged from the vertical groove 4 and the cam slope 17 of the vertical ridge 23 faces the cam slope step 5 of the inner cylinder 6, the cam slope 17 of the vertical ridge 23 is cam sloped by the elastic force of the spring 20. At the same time as being pressed against the step 5, the cam slope of the step is slid toward the lower side and rotated, and is stopped at the valley on the cam slope of the step 5 of the cam slope to stop the rotation. Is projected from the front end 22 so that writing is possible. At this time, the push member 15 and the pusher 1 are released from the influence of the spring 20 and freely reciprocate in the axial direction of the inner cylinder 6.
【００１４】回転子３は、上述の筆書可能状態で再度押
されると、カム斜面段部５におけるカム斜面の谷部に係
止していた縦突条２３がスプリング２０の弾発に抗しな
がら前進してカム斜面段部５との係止を解除し、同時に
筆書部１４を先口２２からさらに前進寸法分だけ突出せ
しめる。ここで押子１を解放すれば、スプリング２０の
弾発力で回転子３が押戻され、縦突条２３がカム斜面段
部５の谷部の隣りのカム斜面に圧接しつつ滑って回り、
縦溝４に自動的に嵌入し、回転子３は、スプリング２０
の引続く弾発力で縦溝４に沿って押戻され、押動部材１
５の先端部におけるカム斜面１８と反対側の部位が内筒
６の抜止段部２４に係止して停止し、筆書部１４が、先
口２２内に引込まれて図１の状態に戻る。When the rotor 3 is pressed again in the writable state as described above, the vertical ridges 23 locked in the valleys of the cam slope in the cam slope step 5 resist the rebound of the spring 20. While moving forward, the engagement with the cam slope step portion 5 is released, and at the same time, the writing portion 14 is further protruded from the front opening 22 by the forward dimension. When the pusher 1 is released, the rotor 3 is pushed back by the elastic force of the spring 20, and the vertical ridge 23 slides while pressing against the cam slope adjacent to the valley of the cam slope step 5. ,
The rotor 3 is automatically fitted into the longitudinal groove 4 and the rotor 3 is
Is pushed back along the vertical groove 4 by the continuous elastic force of
A portion of the distal end portion 5 opposite to the cam slope 18 is locked by the retaining step portion 24 of the inner cylinder 6 and stopped, and the writing portion 14 is drawn into the front opening 22 and returns to the state of FIG. .
【００１５】縦溝４は、回転子３を前後方向（図１で上
下方向を指し、下方が前方、上方が後方）にガイドする
構造で、内筒６の内面において弾片部７よりも先端側部
位（図１で弾片部７よりも下方部位）にカム斜面段部５
と同時に軸方向に向けて構成する。カム斜面段部５は、
縦溝４の周方向相互間において溝先端部と同じ周上にカ
ム斜面を正面山形或いは内筒６の軸方向に高さの異なる
正面ほぼレ字形に構成し、そのカム斜面の谷部に回転子
３の縦突条２３が係止しえるように構成する。The longitudinal groove 4 has a structure for guiding the rotor 3 in the front-rear direction (vertical direction in FIG. 1; downward is forward, upper is rearward). A cam slope step portion 5 is provided on a side portion (a portion below the bullet piece portion 7 in FIG. 1).
At the same time, it is configured to face in the axial direction. The cam slope step 5 is
A cam slope is formed on the same circumference as the groove tip between the circumferential directions of the vertical grooves 4 in a front mountain shape or a substantially frontal shape having a different height in the axial direction of the inner cylinder 6, and the cam slope is rotated at a valley portion of the cam slope. The vertical protrusion 23 of the child 3 is configured to be locked.
【００１６】内筒６は、基端部近く（図１で上端部近
く）に正面ほぼＵ字形の切込２５を切込み形成して半径
方向に弾発性を有する弾片部７を形成し、この弾片部の
外面に軸筒９の係止孔１０に係止する係止突起８を突設
すると共に、弾片部７を基端部寄りに外れた基端部近く
に係止突起８用の位置決め突起１１を係止突起８と縦列
に突設し、この位置決め突起を軸筒９の位置決め凹部１
２に係止するように軸筒９内に挿入する。The inner cylinder 6 has a substantially U-shaped cut 25 near the base end (near the upper end in FIG. 1) to form a resilient piece 7 having elasticity in the radial direction. A locking projection 8 for locking in the locking hole 10 of the barrel 9 is projected from an outer surface of the bullet piece, and the locking projection 8 is provided near the base end where the bullet piece 7 comes off near the base end. Positioning projections 11 are provided in a row in parallel with the locking projections 8, and these positioning projections are
2 and inserted into the shaft cylinder 9.
【００１７】弾片部７及びこれに突設された係止突起８
は、係止孔１０と協働して内筒６を軸筒９内に固定する
ための周知の構造であり、弾片部７が遠心方向に発揮す
る弾発力で係止突起８を係止孔１０にしっかり係止せし
めて内筒６を軸筒９内に強固に固定する。内筒６に突設
された前記位置決め突起１１は、軸筒９が不透明の場合
にその軸筒内における係止突起８の周方向位置（軸筒内
位置）を直に確認しえるようにするため、及び軸筒９に
対する位置決め突起１１の位置を決めれば、軸筒９に対
する係止突起８の位置が自動的に決定されるようにする
ための構造で、係止突起８と縦列部位となる位置関係に
突設するが、その突設部位は、弾片部７を内筒６の基端
部寄りに外れた基端部近くである。従って、不透明の軸
筒９内における係止突起８の周方向位置がわからなくて
も、位置決め突起１１と同列（軸方向に同列）に係止突
起８が突設されているから、位置決め突起１１を見れ
ば、係止突起８の軸筒９内における周方向位置（軸筒内
位置）を直に知ることができ、かつ軸筒９に対して位置
決め突起１１の位置を決めれば、軸筒９に対す係止突起
８の位置が自動的に決まるので、係止突起８を係止孔１
０と位置合せする作業や係止突起８を係止孔１０に係止
する作業を能率よく行うことが可能になり、ひいては、
組立て作業全体を能率よく行うことが可能になる。The bullet piece 7 and the locking projection 8 protruding therefrom
Is a well-known structure for fixing the inner cylinder 6 in the shaft cylinder 9 in cooperation with the locking hole 10, and engages the locking projection 8 with the elastic force exerted by the bullet piece portion 7 in the centrifugal direction. The inner cylinder 6 is firmly fixed in the shaft cylinder 9 by being securely locked in the stopper hole 10. The positioning projections 11 protruding from the inner cylinder 6 allow the user to directly confirm the circumferential position (position in the cylinder) of the locking projections 8 in the cylinder when the cylinder 9 is opaque. Therefore, when the position of the positioning projection 11 with respect to the barrel 9 is determined, the position of the locking projection 8 with respect to the barrel 9 is automatically determined. The projecting portion protrudes in the positional relationship, and the projecting portion is near the base end where the bullet piece portion 7 comes off near the base end of the inner cylinder 6. Therefore, even if the circumferential position of the locking projection 8 in the opaque shaft cylinder 9 is not known, the locking projection 8 is projected in the same row (same row in the axial direction) as the positioning projection 11. , The circumferential position (position in the shaft cylinder) of the locking projection 8 in the shaft cylinder 9 can be directly known, and if the position of the positioning projection 11 with respect to the shaft cylinder 9 is determined, The position of the locking projection 8 with respect to the locking projection 8 is automatically determined.
It is possible to efficiently perform the work of aligning with 0 and the work of locking the locking projection 8 in the locking hole 10, and furthermore,
The whole assembly work can be performed efficiently.
【００１８】軸筒９は、係止突起８を係止するための係
止孔１０を基端部近く（図１で上端部近く）において係
止突起８の対応部位に開穿し、かつ基端部の周縁におけ
る係止孔１０と縦列部位となる位置において位置決め突
起１１の対応部位に軸方向に向って位置決め凹部１２を
凹設し、この凹部に位置決め突起１１を係止可能に構成
すると共に、係止突起８が係止孔１０に係止されると同
時に位置決め突起１１が位置決め凹部１２に係止され、
組立て作業が能率よく行われるように構成する。The shaft cylinder 9 has a locking hole 10 for locking the locking projection 8 at a position near the base end (near the upper end in FIG. 1) at a position corresponding to the locking projection 8. A positioning recess 12 is formed in a position corresponding to the positioning projection 11 at a position corresponding to the positioning projection 11 in the axial direction at a position corresponding to the locking hole 10 on the peripheral edge of the end, and the positioning projection 11 is configured to be able to be locked in this recess. At the same time, the locking projection 8 is locked in the locking hole 10 and the positioning projection 11 is locked in the positioning recess 12.
The assembly work is configured to be performed efficiently.
【００１９】軸筒９の係止孔１０を基端部近くに開穿
し、位置決め凹部１２を基端部周縁に形成してあるか
ら、組立てに際して係止突起８が係止孔１０に係止され
る迄の軸筒９内面との擦れ合い時間が非常に短くなり、
係止突起８の基端部（根元）に応力が加えられる時間が
短くなり、このことによって弾片部７又は係止突起８の
変形、歪形などが防止され、係止突起８を係止孔１０に
確実に係止しえるようになると共に、その係止によって
軸筒９に対する内筒６の固定を確実にすることができる
ようになる。Since the locking hole 10 of the shaft cylinder 9 is formed near the base end and the positioning recess 12 is formed in the periphery of the base end, the locking projection 8 is locked in the locking hole 10 during assembly. Rubbing time with the inner surface of the barrel 9 until it is
The time during which the stress is applied to the base end (root) of the locking projection 8 is shortened, whereby the deformation or distortion of the bullet piece portion 7 or the locking projection 8 is prevented, and the locking projection 8 is locked. The engagement with the hole 10 can be ensured, and the engagement of the inner cylinder 6 with the shaft cylinder 9 can be ensured by the engagement.
【００２０】クリップ１３は、内筒６の基端部において
位置決め突起１１と軸方向に縦列に構成すると共に、係
止突起８の配設部位に向って構成し、さらにそれら両方
の突起８と１１とを内筒６の軸方向に越える長さに構成
し、内筒６を軸筒９に固定すると、係止突起８と位置決
め突起１１との両方が正面視でクリップ１３に隠される
ように構成し、商品の外観デザインの向上に寄与しえる
ようにする。The clip 13 is formed in the base end portion of the inner cylinder 6 so as to be arranged in a row in the axial direction with the positioning projection 11, and is formed toward the portion where the locking projection 8 is provided. When the inner cylinder 6 is fixed to the shaft cylinder 9, both the locking projection 8 and the positioning projection 11 are hidden by the clip 13 in a front view. And contribute to improving the appearance design of the product.
【００２１】本考案は、叙上のように構成したから、軸
筒９内に内筒６を固定して組立てるに際し、軸筒９が不
透明であっても、係止突起８と縦列配設されている位置
決め突起１１又はその位置決め突起と縦列配設関係にあ
るクリップ１３によって係止突起８の軸筒９内における
周方向位置を直に知ることが可能になり、かつ軸筒９に
対する位置決め突起１１の位置を決めれば、軸筒９に対
する係止突起８の位置が自動的に決まることにより、係
止突起８と係止孔１０との位置合せ及び係止突起８を係
止孔１０に係止する作業などを能率よく行うことが可能
になり、組立て作業全体の能率アップに寄与しえるよう
になる。（図１参照） また、軸筒９の係止孔１０が基端部近くにおいて係止突
起８の対応部位に開穿され、かつその係止孔と縦列配設
関係にある位置決め凹部１２が基端部周縁において位置
決め突起１１の対応部位に凹設されていることにより、
組立てに際して係止突起８が軸筒９内面と擦れ合う時間
が短くなり、該係止突起の基端部（根元）に応力がかか
る時間が短くなり、このことによって弾片部７又は係止
突起８が変形、歪形する惧れが減少し、係止突起８を係
止孔１０に確実に係止し得ると共に、この係止によって
内筒６を軸筒９に確実に固定することが可能になる。Since the present invention is constructed as described above, when the inner cylinder 6 is fixed in the barrel 9 and assembled, even if the barrel 9 is opaque, it is arranged in parallel with the locking projection 8. The circumferential position of the locking protrusion 8 in the barrel 9 can be directly known by the positioning protrusion 11 or the clip 13 arranged in tandem with the positioning protrusion 11. Is determined, the position of the locking projection 8 with respect to the shaft cylinder 9 is automatically determined, so that the locking projection 8 and the locking hole 10 are aligned and the locking projection 8 is locked in the locking hole 10. Work can be performed efficiently, which can contribute to an increase in the efficiency of the entire assembling work. (See FIG. 1) Further, a locking hole 10 of the barrel 9 is formed at a position corresponding to the locking projection 8 near the base end, and a positioning recess 12 is arranged in a tandem arrangement with the locking hole. By being recessed at a position corresponding to the positioning projection 11 on the peripheral edge,
At the time of assembly, the time during which the locking projection 8 rubs against the inner surface of the shaft cylinder 9 is reduced, and the time during which stress is applied to the base end (root) of the locking projection is reduced. The possibility of deformation and distortion is reduced, and the locking projection 8 can be securely locked in the locking hole 10, and the inner cylinder 6 can be securely fixed to the shaft cylinder 9 by this locking. Become.
【００２２】さらに、押子１が常時（筆書可能時と筆書
不可能時の両方）弾片部７の内側に配置されていること
により、係止突起８が内筒６の求心方向に向う外圧を受
けても、弾片部７が押子１に当接し、押子１が外圧を受
け止めるにとどまり、係止突起８が係止孔１０から外れ
ることを押子１で防止することが可能になり、このこと
によって内筒６が軸筒９から抜けて分解するような心配
が解消する。Further, since the pusher 1 is always arranged inside the bullet piece portion 7 (both when writing is possible and when writing is not possible), the locking projection 8 is moved in the centering direction of the inner cylinder 6. Even when receiving the external pressure, the pusher 1 can prevent the push piece 1 from coming into contact with the pusher 1, stopping the pusher 1 from receiving the external pressure, and removing the locking projection 8 from the locking hole 10. This makes it possible to eliminate the fear that the inner cylinder 6 comes off the shaft cylinder 9 and is disassembled.
【００２３】またさらに、クリップ１３が内筒６の基端
部から係止突起８及び位置決め突起１１の配設方向に向
って、それらを越えるように設けられていることによ
り、正面視では上記両突起８と１１とのいずれもがクリ
ップ１３で隠され、商品の外観デザインの向上に寄与せ
しめることが可能である。Further, the clip 13 is provided so as to extend from the base end of the inner cylinder 6 in the direction in which the locking projections 8 and the positioning projections 11 are provided, and to extend beyond them. Both the projections 8 and 11 are hidden by the clip 13, which can contribute to the improvement of the appearance design of the product.
【図１】 本発明ボールペンの要部縦断正面図。FIG. 1 is a longitudinal sectional front view of a main part of a ballpoint pen of the present invention.
【図２】 図１の（２）−（２）線断面図。FIG. 2 is a sectional view taken along line (2)-(2) of FIG.
【図３】 図１の（３）−（３）線断面図。FIG. 3 is a sectional view taken along line (3)-(3) of FIG. 1;
【図４】 要部の分解斜視図。FIG. 4 is an exploded perspective view of a main part.
【図５】 筆書可能状態及び筆書不可能状態における押
子と弾片部との位置関係を示す説明図。FIG. 5 is an explanatory view showing a positional relationship between a presser and a bullet in a writable state and a writable state;
【図６】 従来技術の説明図。FIG. 6 is an explanatory view of a conventional technique.
１…押子 ２…インキ管 ３…回転子 ４…縦溝 ５…カム斜面段部 ６…内筒 ７…弾片部 ８…係止突起 ９…軸筒 １０…係止孔 １１…位置決め突起 １２…位置決め凹部 １３…クリップ DESCRIPTION OF SYMBOLS 1 ... Pusher 2 ... Ink tube 3 ... Rotor 4 ... Vertical groove 5 ... Cam slope stepped part 6 ... Inner cylinder 7 ... Elastic piece part 8 ... Locking protrusion 9 ... Shaft cylinder 10 ... Locking hole 11 ... Positioning protrusion 12 ... Positioning recess 13 ... Clip
Claims (2)
て押子による押圧を受けて回転可能な回転子と、内面に
回転子を前後方向にガイドする軸方向の縦溝と、その縦
溝の先端部位に前進した回転子が回転することによって
係止可能なカム斜面段部をそれぞれ設けた内筒を備えた
押出機構を構成し、前記内筒の基端部近くに半径方向の
弾発性を有する弾片部を形成し、この弾片部の外面に係
止突起を突設すると共に、該係止突起から基端部寄りに
弾片部を外れた基端部近くに係止突起用の位置決め突起
を係止突起と縦列に突設し、軸筒の基端部近くに開穿し
た係止孔に係止突起を、軸筒の基端部周縁において係止
孔と縦列に軸方向に凹設した係止突起用の位置決め凹部
に前記位置決め突起を夫々係止し、常時弾片部の内側に
押子を配置してなる押出し式ボールペン。1. A presser, a rotor interposed between the presser and the ink tube and rotatable by being pressed by the presser, and an axial longitudinal groove on an inner surface for guiding the rotor in the front-rear direction. And an extruding mechanism including an inner cylinder provided with a cam slope step portion which can be locked by rotating a rotor advanced to a distal end portion of the vertical groove, near the base end of the inner cylinder. A projecting portion having radial resilience is formed, and a locking projection is provided on an outer surface of the projecting portion, and the projecting portion is detached from the locking projection toward the base end. Positioning projections for the locking projections protrude in parallel with the locking projections near the locking projections, and lock the locking projections in the locking holes drilled near the base end of the barrel at the periphery of the base end of the barrel. The positioning projections are respectively locked in the positioning recesses for the locking projections formed in the hole and the column in the axial direction, and the pusher is always arranged inside the bullet piece portion. Extruded ballpoint pen.
突起用の位置決め突起の配設方向に、かつそれら係止突
起と位置決め突起とを内筒の軸方向に越える長さのクリ
ップを設けた請求項１記載の押出し式ボールペン。2. A length extending beyond the base end of the inner cylinder in the direction in which the locking projections and the positioning projections for the locking projections are arranged, and beyond the locking projections and the positioning projections in the axial direction of the inner cylinder. The ballpoint pen according to claim 1, further comprising a clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8024018A JP3034458B2 (en) | 1996-02-09 | 1996-02-09 | Extruded ballpoint pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8024018A JP3034458B2 (en) | 1996-02-09 | 1996-02-09 | Extruded ballpoint pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09216492A JPH09216492A (en) | 1997-08-19 |
| JP3034458B2 true JP3034458B2 (en) | 2000-04-17 |
Family
ID=12126807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8024018A Expired - Lifetime JP3034458B2 (en) | 1996-02-09 | 1996-02-09 | Extruded ballpoint pen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3034458B2 (en) |
-
1996
- 1996-02-09 JP JP8024018A patent/JP3034458B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09216492A (en) | 1997-08-19 |
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