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JP5979459B2 - Push-lock device for push-in type writing instrument {PUSHLOCKSYSTEMFORSLIDETYPEWRITEINGTOOLS} - Google Patents

Push-lock device for push-in type writing instrument {PUSHLOCKSYSTEMFORSLIDETYPEWRITEINGTOOLS} Download PDF

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JP5979459B2
JP5979459B2 JP2015224727A JP2015224727A JP5979459B2 JP 5979459 B2 JP5979459 B2 JP 5979459B2 JP 2015224727 A JP2015224727 A JP 2015224727A JP 2015224727 A JP2015224727 A JP 2015224727A JP 5979459 B2 JP5979459 B2 JP 5979459B2
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pen
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pen housing
clip member
ink holder
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JP2016097682A (en
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ジュ チョン，クァン
ジュ チョン，クァン
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ジュ チョン，クァン
ジュ チョン，クァン
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/086—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with heart-shaped cams, balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/04—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by means sliding in longitudinally-slotted casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/088—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with spreading spring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
    • B43K25/02—Clips

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Clips For Writing Implements (AREA)

Description

本発明は、出没式筆記具のプッシュロック装置に関し、より詳細には、より簡単な構成でも筆記具のペン芯を使用時のみに外部へ突出させ、非使用時には、内部へ収容させてペン芯の棄損を防止できるように発明されたものである。   The present invention relates to a push-lock device for a retractable writing instrument. More specifically, the pen core of a writing instrument is protruded to the outside only when it is used even in a simpler configuration, and is stored inside when not in use, and the pen core is destroyed. It was invented so that it can be prevented.

一般的に、筆記具は、ボールペンをはじめ、サインペン、蛍光ペン、マジックペンなどをいい、これらの大部分は、筆記用芯材の乾きを防止するために密閉用キャップが脱着可能に固定される。   In general, the writing instrument includes a ballpoint pen, a sign pen, a fluorescent pen, a magic pen, and the like, and most of them are fixed with a sealing cap detachably to prevent the writing core from drying.

このような筆記具は、大きくペン芯が固定されており、キャップ（ｃａｐ、以下、蓋という）を使用する固定式と、軸の一部を回転させることにより、螺旋パイプに沿って芯の一部が外へ出るようにした回転式（繰出式）と、軸の一部分を押すことにより、スプリングが動いてペン芯が出るようにするノック式と、ペン芯が突出及び没入されるようにスライドさせる出没式（ｓｌｉｄｅ ｔｙｐｅ）がある。   In such a writing instrument, a pen core is largely fixed, a fixed type using a cap (hereinafter referred to as a lid), and a part of the core along a spiral pipe by rotating a part of the shaft. Rotating type (feeding type) so that the pen goes out, knock type that pushes a part of the shaft so that the spring moves and the pen lead comes out, and slides so that the pen lead protrudes and is sunk There is a slide type.

韓国特許第１０−１９９５−００００７７６号（公告番号日付：１９９５．０６．２６）Korean Patent No. 10-19995-0000776 (Public Notice Date: 1995.06.26) 韓国実用新案第２０−１９８９−０００３６４４号（公告日付：１９８９．０４．０７）Korean Utility Model No. 20-1989-0003644 (Public Notice Date: 1989.04.07) 韓国特許第１０−１９９５−００００７７６号（公告日付：１９９５．０２．０２）Korean Patent No. 10-1955-0000776 (Date of publication: 1995.02.02)

特許文献２（キャップのない筆記具）は、ノック部を押すと、ペン先が内通に設けられた弾性体を突き抜けてペン先が露出してペンを使用するようにし、ノック部を解除、または再び押すことによってペン先が元の場所に戻るようになる。   In Patent Document 2 (writing instrument without a cap), when the knock part is pushed, the pen point penetrates the elastic body provided in the inner passage so that the pen point is exposed and the pen is used, and the knock part is released, or Press again to return the pen tip to its original location.

この時、ペン芯が揮発性の場合、内部に乾き防止装置を設けることによって、切欠された弾性体が互いに当接して密閉されることにより、ペン先の乾きを防くこともある。   At this time, when the pen core is volatile, by providing an anti-drying device inside, the notched elastic bodies may be brought into contact with each other and sealed, thereby preventing the pen tip from drying.

一方、特許文献３では、運搬時に筆記部材が筆記具の本体内に後退しないながらも信頼性のあるように密閉され得るようにした筆記具が提案された事がある。   On the other hand, Patent Document 3 has proposed a writing instrument in which the writing member can be hermetically sealed without being retracted into the main body of the writing instrument during transportation.

この筆記具には、筆記部材を前・後進出没させるために、プッシュロック装置を備えている。   This writing instrument is provided with a push-lock device to advance and retract the writing member forward and backward.

従来の知られているプッシュロック装置は、出没される筆記芯の反対側にボタンがケースの外部へ露出し、このボタンを１回プッシュするとロックされ、再び１回プッシュするとロックが解除される。   In a known push lock device, a button is exposed to the outside of the case on the opposite side of the writing core that is projected and retracted. When the button is pushed once, it is locked, and when pushed again, the lock is released.

ロック及びアンロックのための装置では、ボタンの下端部の周りには、係止高さが異なるようにラッチ突起が繰り返し成形され、ボタンの下端内側に組み立てられる回転部材が１回プッシュする時は、筆記部材が前進した状態で、ボタンのラッチ突起に係止されるようになる。   In the device for locking and unlocking, a latch protrusion is repeatedly formed around the lower end of the button so that the locking height is different, and when the rotating member assembled inside the lower end of the button is pushed once In a state where the writing member has advanced, the button is latched to the latch protrusion.

したがって、筆記部材の後退を防止した状態からケースの先端に露出した芯を用いて筆記が可能になる。   Therefore, writing can be performed using the lead exposed at the tip of the case from the state in which the writing member is prevented from retreating.

そして、再びボタンを１回プッシュすると、回転部材が共に前進された後、後退される時、ラッチ突起の係止突起が深い方へ回転されながら筆記部材と共にボタン方向へ深く移動されることにより、筆記部材の先端がケースの内部へ収納されて棄損を防止するようになる。   And when the button is pushed once again, when the rotating member is moved forward together and then retracted, the latching protrusion of the latch protrusion is moved deeper in the button direction together with the writing member while being rotated deeper, The tip of the writing member is housed inside the case to prevent loss.

しかし、この方式は、頻繁な使用によって回転部材とラッチ突起との摩擦で係止部の位置で損傷が繁く生じ、誤動作が頻繁に生じる問題点があった。   However, this method has a problem that frequent use frequently causes malfunctions due to friction between the rotating member and the latch protrusion, and damage frequently occurs at the position of the locking portion.

また、ケースを必ず上部ケースと下部ケースとに分割する方式でのみ部品などを組み立て、分解することができるので、組立性が悪いという短所がある。   In addition, since the parts can be assembled and disassembled only by a method in which the case is always divided into the upper case and the lower case, there is a disadvantage in that the assemblability is poor.

本発明の目的は、構成が簡単で、より簡単にプッシュ−プッシュ操作でペン芯を出没させ得るようにした筆記具のロック装置を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a writing instrument locking device that has a simple configuration and that allows a pen core to be projected and retracted more easily by a push-push operation.

本発明の他の目的は、繰り返される使用でもロック機能を失ったり、故障が発生する場合を未然に防止し、組立性が優れており、製品の信頼性が向上できるようにした出没式筆記具のロック装置を提供することにある。   Another object of the present invention is to provide a retractable writing instrument that prevents the case where the lock function is lost or a failure occurs even if it is used repeatedly, has excellent assemblability, and can improve the reliability of the product. It is to provide a locking device.

このような目的を達成するために、本発明の構成は、中空円筒状を有し、先端部にペン芯出入孔１１が貫通されるペンハウジング１０と、
前記ペンハウジング１０の一側上端に備えられるクリップ部材２０と、
前記ペンハウジング１０の内部へ収容され、先端にペン芯３１が、他側にはノブ３２が結合された状態で内部にインク部材を収容しているインクホルダー３０と、
前記インクホルダー３０を付勢するスプリング５０と、
前記ノブ３２を繰り返して押入することによってペン芯３１がペンハウジング１０の外部へ露出した状態でロック、または内部へ収容されるようにするアンロックを繰り返すようになるロック手段７０が備えられ、
前記ロック手段７０は、クリップ部材２０の内側面で左右にそれぞれ深さと形状が異なるカム通路７１，７２と、ハート状のカム受け部７３が形成され、
前記インクホルダー３０には、円周方向に嵌合溝３６が掘り出され、係止突起７５が突出するように設けられた中空円筒状の作動体７４が、前記嵌合溝３６に回転自在に嵌合されており、
前記ペンハウジング１０には、ノブ３２の操作でインクホルダー３０及び作動体７４がカム通路７１，７２に沿って移動されることをガイドするためのガイド通路１５が成形された筆記具において、
前記作動体７４は、内径が前記嵌合溝３６の外径と対応する寸法を有する、一定の厚さの中空円筒状であり、前記作動体７４は、円周上において前記係止突起７５と対向する部分は開けられており、前記作動体７４は開けられた部分が広げられて前記嵌合溝３６に取り付けられており、
前記作動体７４は一定の弾性を有しており、外力が作用した時は、円周方向に回転自在に前記嵌合溝３６に取り付けられており、
ハート状の前記カム受け部７３の両側に形成された２つの前記カム通路７１，７２に沿って前記係止突起７５が上下、左右に移動されることは、前記作動体７４が前記嵌合溝３６に回転自在に設けられていることによって可能であり、
前記クリップ部材２０は、上部に一体に成形されたヒンジ軸２１が設けられ、前記ヒンジ軸２１が、前記ペンハウジング１０に設けられた軸孔１６に嵌合されることにより、前記ヒンジ軸２１を中心に回動可能に前記ペンハウジング１０に取り付けられており、
前記係止突起７５がそれぞれ深さと形状が異なるように成形された２つの前記カム通路７１，７２と前記カム受け部７３とに沿って移動される時に、前記ヒンジ軸２１の外側へ前記クリップ部材２０と前記ペンハウジング１０との間に設けられたコイルスプリング７８によって、前記クリップ部材２０は、２つの前記カム通路７１，７２の深さの差の範囲内で前記ペンハウジング１０からの距離が広がる方向、および、狭くなる方向に発生される変位に対して対応して移動することになり、
前記クリップ部材２０は、常に前記作動体７４の前記係止突起７５に密着される方向へ弾性力が作用されていることを特徴とする。

In order to achieve such an object, the configuration of the present invention has a hollow cylindrical shape, and a pen housing 10 in which a pen core entry / exit hole 11 is penetrated at a tip portion;
A clip member 20 provided at one upper end of the pen housing 10;
An ink holder 30 that is housed inside the pen housing 10 and that houses a pen core 31 at the tip and a knob 32 coupled to the other side, and an ink member inside the pen housing 10;
A spring 50 for urging the ink holder 30;
Locking means 70 is provided to repeatedly lock and unlock the pen core 31 while being exposed to the outside of the pen housing 10 by repeatedly pressing the knob 32 ,
The locking means 70 is formed with cam passages 71 and 72 having different depths and shapes on the inner side surface of the clip member 20, and a heart-shaped cam receiving portion 73.
In the ink holder 30, groove 36 is out digging in the circumferential direction, a hollow cylindrical actuating member 74 provided as the locking projection 75 projects is rotatably fitting groove 36 It has been fitted,
In the writing instrument in which the pen housing 10 is formed with a guide passage 15 for guiding the ink holder 30 and the operating body 74 to be moved along the cam passages 71 and 72 by the operation of the knob 32 .
The operating body 74 has a hollow cylindrical shape with a constant thickness, the inner diameter of which corresponds to the outer diameter of the fitting groove 36, and the operating body 74 is arranged on the circumference with the locking projection 75. Opposing portions are opened, and the operating body 74 is attached to the fitting groove 36 with the opened portion expanded.
The operating body 74 has a certain elasticity, and is attached to the fitting groove 36 so as to be rotatable in the circumferential direction when an external force is applied.
The locking projection 75 is moved up and down and left and right along the two cam passages 71 and 72 formed on both sides of the heart-shaped cam receiving portion 73. It is possible by being provided rotatably in 36,
The clip member 20 is provided with a hinge shaft 21 integrally formed at an upper portion thereof, and the hinge shaft 21 is fitted into a shaft hole 16 provided in the pen housing 10 so that the hinge shaft 21 is It is attached to the pen housing 10 so as to be rotatable about the center,
When the locking projection 75 is moved along two of the cam path 71, 72 depth and shape is formed differently each and said cam receiving portion 73, the clip member to the outside of the hinge shaft 21 by a coil spring 78 provided between the 20 and the pen housing 10, the clip member 20, the distance from the pen housing 10 spreads within the depth of the difference between two of the cam path 71, 72 Will move corresponding to the direction and the displacement generated in the direction of narrowing,
The clip member 20 is characterized in that an elastic force is always applied in a direction in which the clip member 20 is in close contact with the locking protrusion 75 of the operating body 74 .

ここで、前記インクホルダー３０には、作動体７４の設置位置を制御するようにガイド通路１５に沿って移動されるがイド顎３８が一体に突出成形される。   Here, the ink holder 30 is moved along the guide passage 15 so as to control the installation position of the actuating body 74, but the id jaw 38 is integrally projected.

このような本発明によれば、部品構成が簡単で、組立性が優れた出没式筆記具のプッシュロック装置を提供することができる。   According to the present invention as described above, it is possible to provide a push-lock device for a retractable writing instrument that has a simple component configuration and excellent assemblability.

また、耐久性も優れて製品の信頼性が向上する効果がある。   In addition, the durability is excellent and the reliability of the product is improved.

本発明の筆記具ペン芯が内部に保管されて気密を維持する状態を示した斜視図。The perspective view which showed the state in which the writing instrument pen core of this invention was stored inside and maintained airtightness. 本発明の筆記具ペン芯が露出する状態を示した斜視図。The perspective view which showed the state which the writing instrument pen core of this invention exposes. 本発明の要部構成を分解して示した分解斜視図。The exploded perspective view which decomposed | disassembled and showed the principal part structure of this invention. 本発明のインクホルダーに作動体が設けられる状態を示した斜視図。FIG. 3 is a perspective view showing a state where an operating body is provided in the ink holder of the present invention. 本発明のペンハウジングとクリップ部材とが分解された状態を示した斜視図。The perspective view which showed the state by which the pen housing and clip member of this invention were decomposed | disassembled. 本発明の筆記具ペン芯が内部へ保管されて気密を維持する状態のロック手段の構成を示した要部断面図。The principal part sectional drawing which showed the structure of the locking means of the state in which the writing instrument pen core of this invention is stored inside, and maintains airtightness. 本発明の筆記具ペン芯が露出するようにノブを操作して係止突起がカム受け部に係止されるロック手段の構成を示した要部断面図。The principal part sectional drawing which showed the structure of the locking means by which a knob is operated so that the writing instrument pen lead of this invention may be exposed, and a latching protrusion is latched by a cam receiving part. 本発明の作動体に突出された係止突起がクリップ部材に掘り出されたカム受け部に設けられた状態を示した図７の要部横断面図。The principal part cross-sectional view of FIG. 7 which showed the state provided in the cam receiving part dug into the clip member by the latching protrusion protruded by the action | operation body of this invention. クリップ部材に掘り出されたカム通路に沿って係止突起が移動されるステップを示した斜視図。The perspective view which showed the step by which a latching protrusion is moved along the cam channel dug into the clip member. クリップ部材に掘り出されたカム通路に沿って係止突起が移動されるステップを示した斜視図。The perspective view which showed the step by which a latching protrusion is moved along the cam channel dug into the clip member. クリップ部材に掘り出されたカム通路に沿って係止突起が移動されるステップを示した斜視図。The perspective view which showed the step by which a latching protrusion is moved along the cam channel dug into the clip member. クリップ部材に掘り出されたカム通路に沿って係止突起が移動されるステップを示した正面図。The front view which showed the step in which a latching protrusion is moved along the cam channel | path dug out by the clip member. 本発明がペン芯の乾き防止機能を有する実施例であって、本発明の筆記具ペン芯が露出した状態でペンハウジングの内部を示した斜視図。The perspective view which showed the inside of a pen housing in the state which is an Example which this invention has the dry prevention function of a pen lead, and the writing instrument pen lead of this invention exposed. 本発明がペン芯の乾き防止機能を有する実施例であって、本発明の筆記具ペン芯が内部へ保管されて気密を維持する状態の一部切欠断面図。FIG. 4 is a partially cutaway cross-sectional view showing an embodiment in which the present invention has a pen core dry prevention function, and the writing instrument pen core of the present invention is stored inside to maintain airtightness. 本発明がペン芯の乾き防止機能を有する実施例であって、インクホルダーに形成されたカム突起がガイド部材の係止部に接触して押されて移動される状態を示した要部正面図。The principal part front view which showed the state which is an Example which this invention has the dry prevention function of a pen lead, and the cam protrusion formed in the ink holder contacts the latching | locking part of a guide member, and is moved. . 本発明がペン芯の乾き防止機能を有する実施例であって、インクホルダーに形成されたカム突起がガイド部材の移動ホールの位置に進入して移動される状態を示した要部正面図。The principal part front view which showed the state which this invention is an Example which has the dry prevention function of a pen lead, and the cam protrusion formed in the ink holder approached and moved to the position of the movement hole of a guide member.

以下、本発明の好ましい実施例を添付された図面に基づいて、詳細に説明すると、次の通りである。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

図面に示されたように、本発明の出没式筆記具のプッシュロック装置は、例として、ボールペンのように、乾き防止機能と無関係な筆記部材をノブの１回のプッシュ操作で出没した状態を維持したり、また、１回のプッシュ操作でペンッアハウジングの内部に収容された状態を維持できるようにする。   As shown in the drawings, the push-lock device for the retractable writing instrument of the present invention maintains a state in which a writing member irrelevant to the dry prevention function, such as a ballpoint pen, appears and disappears by a single push operation of the knob. In addition, the state accommodated in the pen pu housing can be maintained by a single push operation.

また、蛍光ペン、マジックペン、サインペン、プラスペンなどの揮発性の強いインクを使用する筆記具のペン芯を使用時にのみ外部へ突出させ、非使用時には内部へ気密されるように収容させて、インクの蒸発防止及びペン芯の乾きを防止する用途の筆記具にも適用され得るようにしたものである。   In addition, the pen core of writing instruments that use highly volatile ink such as fluorescent pens, magic pens, sign pens, plus pens, etc. are projected outside only when used, and stored inside so that they are airtight when not in use. It can be applied to a writing instrument for the purpose of preventing evaporation of the pen and preventing the pen core from drying.

前記ペンハウジング１０は、中空の管状で、その内部へインクホルダー３０及び乾き防止機能を有する密閉部材４０が収容され、外部にはクリップ部材２０が備えられている。   The pen housing 10 has a hollow tubular shape, in which an ink holder 30 and a sealing member 40 having a function of preventing drying are accommodated, and a clip member 20 is provided outside.

インクホルダー３０は、インクを注いで繰り返し使用される注入式と、インク交換式も適用可能である。   The ink holder 30 can be applied to an injection type in which ink is poured and repeatedly used and an ink exchange type.

ペンハウジング１０は、先端にペン芯出入孔１１が形成され、インクホルダー３０のペン芯３１が露出できるようにする。   The pen housing 10 has a pen core entry / exit hole 11 formed at the tip thereof so that the pen core 31 of the ink holder 30 can be exposed.

また、ペンハウジング１０の外側上部にクリップ部材２０を備えるようになるが、このクリップ部材２０の内側に備えられたカム装置と作動体７４との作動でインクホルダー３０の前進及び後進状態を維持できるようにするロック手段７０が設けられている。   Further, the clip member 20 is provided on the outer upper portion of the pen housing 10, and the forward movement and the reverse movement state of the ink holder 30 can be maintained by the operation of the cam device and the operation body 74 provided on the inner side of the clip member 20. Locking means 70 is provided.

該ロック手段７０は、ペンハウジング１０の上端に露出したインクホルダー３０のノブ３２を一回押すとロック状態、また、繰り返して押すとアンロック状態に切り替えられる。   The lock means 70 is switched to the locked state when the knob 32 of the ink holder 30 exposed at the upper end of the pen housing 10 is pressed once, and to the unlocked state when pressed repeatedly.

前記ペンハウジング１０の内部へ収容されるインクホルダー３０は、先端にペン芯３１が結束され、その他側では内部へインクが充填、または交換できるようにノブ３２が着脱可能に備えられる。   The ink holder 30 accommodated in the pen housing 10 has a pen core 31 bound at the tip, and a knob 32 is detachably provided on the other side so that ink can be filled or exchanged inside.

インクホルダー３０の先端には、ペン芯３１の出没は可能な状態で、使用中でない収容状態ではインクの乾きを防止するためのシール機能を有する密閉部材４０が設けられることもある。   The ink holder 30 may be provided with a sealing member 40 having a sealing function for preventing the ink from drying in a housed state where the pen core 31 can be projected and retracted and not in use.

密閉部材４０は、先端にカバー４１が軟質ゴム材または合成樹脂材でヒンジ機能を有するように連結されているが、このカバー４１は、自然状態でのようにペン芯３１の出没に支障を与えないように本体と略直角方向に開放されている状態を維持するようになる。   The sealing member 40 is connected to the tip thereof so that the cover 41 is made of a soft rubber material or a synthetic resin material so as to have a hinge function. However, this cover 41 hinders the pen core 31 from appearing and protruding as in a natural state. As a result, a state of being opened in a direction substantially perpendicular to the main body is maintained.

このカバー４１は、ガイド部材６０のカム溝６７の位置に嵌合されてガイド部材６０の前・後進作動によって密閉作動が制御される。   The cover 41 is fitted in the position of the cam groove 67 of the guide member 60, and the sealing operation is controlled by the forward / reverse operation of the guide member 60.

このガイド部材６０は、中空筒状の合成樹脂材で前記密閉部材４０とペンハウジング１０との間に設けられる。   The guide member 60 is a hollow cylindrical synthetic resin material and is provided between the sealing member 40 and the pen housing 10.

したがって、ガイド部材６０は、その内部へ密閉部材４０を収容した状態でインクホルダー３０が前・後進される時に共に移動されながらカバー４１がカム溝６７に沿ってガイドされ、開閉作動をガイドするようになる。   Accordingly, the cover 41 is guided along the cam groove 67 while the ink holder 30 is moved forward and backward with the sealing member 40 accommodated therein, so that the opening and closing operation is guided. become.

また、ガイド部材６０の側面部には、長手方向に沿って係止部６１と、移動ホール６２とが掘り出され、先端にはペン芯３１の移動が可能になるように作動孔６５が開けられている。   Further, a locking portion 61 and a moving hole 62 are dug in the side surface portion of the guide member 60 along the longitudinal direction, and an operation hole 65 is opened at the tip so that the pen core 31 can be moved. It has been.

前記インクホルダー３０には、前記ガイド部材６０の係止部６１に接触された状態で、ガイド部材６０を移動させるようにし、移動ホール６２に沿って移動されるカム突起３７が一体に突出成形されている。   The ink holder 30 is integrally formed with a cam projection 37 that moves along the moving hole 62 so that the guide member 60 is moved while being in contact with the engaging portion 61 of the guide member 60. ing.

したがって、ペン芯３１を収容した状態でインクホルダー３０とガイド部材６０との前・後進動作に応じて、その先端にヒンジ連結されたカバー４１が開放され、ペン芯３１の出没が可能になる。   Accordingly, the cover 41 hinged to the tip of the ink holder 30 and the guide member 60 is opened in accordance with the forward / backward movement of the ink holder 30 and the guide member 60 in the state where the pen core 31 is accommodated, so that the pen core 31 can be projected and retracted.

一方、前記密閉部材４０は、軟質のゴム材で、その外径部には、突起４４を突出成形して、前記突起４４を収容溝４６の内側へ収容した状態で結合され、ペンハウジング１０の内側へ形成された顎部１８に係止されるようにする固定キャップ４５が設けられる。   On the other hand, the sealing member 40 is a soft rubber material, and a projection 44 is formed on the outer diameter portion of the sealing member 40 so that the projection 44 is accommodated inside the accommodation groove 46. A fixing cap 45 is provided so as to be locked to the jaw 18 formed inward.

この密閉部材４０に結合された固定キャップ４５とインクホルダー３０との間には、スプリング５０が弾力設けられている。   A spring 50 is elastically provided between the fixing cap 45 coupled to the sealing member 40 and the ink holder 30.

したがって、密閉部材４０のカバー４１が開放された状態で、再び密閉される時にガイド部材６０の後退でカム溝６７がカバー４１の位置を取り締まってペン芯３１の周囲が気密を維持できるように引いて密閉させるのである。   Therefore, when the cover 41 of the sealing member 40 is opened, the guide member 60 is retracted so that the cam groove 67 controls the position of the cover 41 when the cover 41 is sealed again, so that the periphery of the pen core 31 can be kept airtight. And seal it.

この時、インクホルダー３０がガイド部材６０と共に後退されるが、固定キャップ４５とインクホルダー３０との間に設けられたスプリング５０の弾性力でカム溝６７に位置制御されているカバー４１は、密閉部材４０の先端部に密着された状態を維持できるように付勢されるのである。   At this time, the ink holder 30 is retracted together with the guide member 60, but the cover 41 whose position is controlled in the cam groove 67 by the elastic force of the spring 50 provided between the fixed cap 45 and the ink holder 30 is sealed. It is urged so that the state of being in close contact with the tip of the member 40 can be maintained.

そして、ガイド部材６０の一側、または両側には、長手方向に沿って移動ホール６２が長く掘り出されるが、その入口には、移動ホール６２の通路を狭くする係止部６１が突出成形されている。   A moving hole 62 is dug out along the longitudinal direction on one side or both sides of the guide member 60, and a locking portion 61 that narrows the passage of the moving hole 62 is projectingly formed at the entrance. ing.

一方、インクホルダー３０には、一体に、この係止部６１の接触位置でカム突起３７が突出成形されている。   On the other hand, a cam projection 37 is integrally formed on the ink holder 30 so as to protrude at the contact position of the locking portion 61.

このような構造からなった本発明は、インクホルダー３０がペンハウジング１０の内部へ収容された状態でペンを使用していない携帯及び保管状態では、スプリング５０の弾性力でペン芯３１が密閉部材４０の内部でカバー４１が覆われられ、気密を維持した状態で後退されている。   In the present invention having such a structure, the pen core 31 is sealed by the elastic force of the spring 50 when the ink holder 30 is housed in the pen housing 10 and is not being used. The cover 41 is covered inside 40 and is retracted while maintaining airtightness.

この状態でペン芯３１をペンハウジング１０の先端に露出して使用しようとする場合には、ロック手段７０を作動するためにノブ３２をクリックしてインクホルダー３０を密閉部材４０と共に前進させるようになる。   When the pen core 31 is exposed and used at the tip of the pen housing 10 in this state, the ink holder 30 is advanced together with the sealing member 40 by clicking the knob 32 in order to operate the locking means 70. Become.

この時、インクホルダー３０の外側へ突出されていたカム突起３７は、ガイド部材６０の係止部６１に接触した状態でガイド部材６０が移動可能な範囲、すなわち、ガイド部材６０がペンハウジング１０の先端内側に接触される距離まで最大限押して移動させるようになる。   At this time, the cam protrusion 37 that protrudes to the outside of the ink holder 30 is in a range in which the guide member 60 can move in a state where the cam member 37 is in contact with the locking portion 61 of the guide member 60, that is, the guide member 60 is in the pen housing 10. It will move to the maximum distance until it touches the inside of the tip.

また、密閉部材４０に結合されている固定キャップ４５は、ペンハウジング１０の内側へ形成された顎部１８に係止されているようになるので、密閉部材４０の本体は移動できないようになる反面、その先端にヒンジ連結されたカバー４１は、ガイド部材６０のカム溝６７の位置に応じて開閉される。   Further, since the fixed cap 45 coupled to the sealing member 40 is locked to the jaw portion 18 formed inside the pen housing 10, the main body of the sealing member 40 cannot be moved. The cover 41 hinged to the tip is opened and closed according to the position of the cam groove 67 of the guide member 60.

カム溝６７の形状は、インクホルダー３０の移動方向と並んでいる直線部６７ａと、カバー４１とが密閉部材４０の先端で密着され得るように圧着させるための傾斜部６７ｂにつながるように成形されている。   The shape of the cam groove 67 is formed so as to be connected to an inclined portion 67b for pressure bonding so that the linear portion 67a aligned with the moving direction of the ink holder 30 and the cover 41 can be brought into close contact with each other at the tip of the sealing member 40. ing.

したがって、ガイド部材６０がペンハウジング１０の先端内側へ接触してこれ以上移動できなくなる位置まで移動すると、カバー４１は、カム溝６７の傾斜部６７ｂの位置から直線部６７ａの位置へ位置移動される結果で、密閉部材４０の先端部から開放される。   Therefore, when the guide member 60 contacts the tip inner side of the pen housing 10 and moves to a position where it cannot move any more, the cover 41 is moved from the position of the inclined portion 67b of the cam groove 67 to the position of the linear portion 67a. As a result, the front end portion of the sealing member 40 is released.

この時は、インクホルダー３０の前進移動でカム突起３７に接触されていた係止部６１との間が自体弾力によって広げながら移動ホール６２の位置に進入され、ペン芯３１とインクホルダー３０とは、引き続き、更に前進移動されてペン芯３１を用いた筆記が可能な状態に露出する。   At this time, the pen holder 31 and the ink holder 30 are moved into the position of the moving hole 62 while being expanded by the elastic force between itself and the engaging portion 61 that is in contact with the cam projection 37 by the forward movement of the ink holder 30. Then, it is further moved forward and exposed to a state in which writing using the pen core 31 is possible.

また、ペン芯３１を気密維持状態でペンハウジング１０の内部に収容させようとする時は、クリップ部材２０、またはノブ３２をクリックしてロック手段７０の操作でアンロック状態に切り替えさせると、スプリング５０の弾性力によってインクホルダー３０とペン芯３１とが後退始めるようになる。   Further, when the pen core 31 is to be accommodated in the pen housing 10 in an airtight state, when the clip member 20 or the knob 32 is clicked and the lock means 70 is operated to switch to the unlocked state, the spring The ink holder 30 and the pen core 31 begin to retract due to the elastic force of 50.

そして、ガイド部材６０が後退されながらカム溝６７の直線部６７ａに位置されていたカバー４１が傾斜部６７ｂの位置にガイドされながらずっと後退することによってペン芯３１が密閉部材４０の内部でカバー４１が密閉されながら気密状態を維持するように位置されることである。   Then, the cover 41 positioned at the straight portion 67a of the cam groove 67 is retracted while being guided by the position of the inclined portion 67b while the guide member 60 is retracted, so that the pen core 31 is covered with the cover 41 inside the sealing member 40. Is positioned so as to maintain an airtight state while being sealed.

ここで、前記カム突起３７は、移動ホール６２に沿って後退された後、ガイド部材６０が密閉部材４０に係止されてこれ以上後退できない位置では、カム突起３７が係止部６１を再び広がるようにし、もっと後退して初期状態に位置されることである。   Here, after the cam protrusion 37 is retracted along the moving hole 62, the cam protrusion 37 spreads the locking portion 61 again at a position where the guide member 60 is locked by the sealing member 40 and cannot be further retracted. In other words, it is more backward and positioned in the initial state.

インクホルダー３０とガイド部材６０とが互いに離脱を防止した状態で組み立てられ後退時に共に移動され得るようにインクホルダー３０には、係止顎３３を突出成形し、これに対応する位置にガイド部材６０には、作動溝６６を掘り出すようになる。   A locking jaw 33 is formed on the ink holder 30 so that the ink holder 30 and the guide member 60 are assembled in a state in which the ink holder 30 and the guide member 60 are prevented from being separated and can be moved together when the ink holder 30 is retracted. Then, the working groove 66 is dug out.

このような動作でインクホルダー３０とペン芯３１は、筆記が可能に露出するように、または、ペンハウジング１０の内部へ収容された状態では気密を維持してインクの蒸発やペン芯の乾きを防止することができることである。   By such an operation, the ink holder 30 and the pen core 31 are exposed so that writing can be performed, or when the ink holder 30 and the pen core 31 are housed inside the pen housing 10, the ink holder 30 and the pen core 31 are kept airtight so It can be prevented.

一方、本発明のロック手段７０は、クリップ部材２０の内側面で左右にそれぞれ深さと形状が異なるカム通路７１，７２と、ハート状のカム受け部７３とが形成される。（図５及び図１２）   On the other hand, the lock means 70 of the present invention is formed with cam passages 71 and 72 having different depths and shapes on the inner side surface of the clip member 20 on the left and right sides, and a heart-shaped cam receiving portion 73. (FIGS. 5 and 12)

そして、前記インクホルダー３０には、円周方向に嵌合溝３６を一定の深さで掘り出して円筒クリップ状の作動体７４を嵌合して設けるようになる。   The ink holder 30 is provided with a cylindrical clip-like operating body 74 fitted in the circumferential direction by digging the fitting groove 36 at a certain depth.

作動体７４は、一定の厚さの中空円筒状で係止突起７５が突出した反対側は、開けられ、一定の弾性を有している。   The actuating body 74 is a hollow cylinder having a certain thickness, and the opposite side from which the locking projection 75 protrudes is opened and has a certain elasticity.

したがって、作動体７４の開けられた部分を僅か広がるようにして嵌合溝３６に取り付けられるが、作動体７４の自由状態では、その内径が嵌合溝３６の外径と対応する寸法で設計することにより、外力が作用される時は、円周方向に左右回転可能に設けられることである。   Therefore, it is attached to the fitting groove 36 so that the opened portion of the operating body 74 is slightly widened. However, in the free state of the operating body 74, the inner diameter is designed with a size corresponding to the outer diameter of the fitting groove 36. Thus, when an external force is applied, it is provided so as to be rotatable left and right in the circumferential direction.

また、前記ペンハウジング１０には、ノブ３２の操作でインクホルダー３０及び作動体７４がカム通路７１，７２に沿って移動されることをガイドするためのガイド通路１５が成形されている。   The pen housing 10 is formed with a guide passage 15 for guiding the ink holder 30 and the operating body 74 to be moved along the cam passages 71 and 72 by the operation of the knob 32.

このガイド通路１５は、図５に示されたように、ノブ３２に近接した位置では、係止突起７５が垂直方向に係止突起７５の幅分だけ切り取りされ、カム通路７１、７２の位置では左右に係止突起７５が移動可能な範囲だけの幅が広がる形状で開けられるようになる。   As shown in FIG. 5, in the guide passage 15, the locking projection 75 is cut in the vertical direction by the width of the locking projection 75 at a position close to the knob 32, and at the positions of the cam passages 71 and 72. It can be opened in a shape in which the width of the locking projection 75 is widened to the left and right.

ここで、前記インクホルダー３０には、作動体７４の設置位置と併せて、ノブ３２を押圧操作する時に、垂直方向へインクホルダー３０と作動体７４とが移動され得るようにガイド通路１５に沿って移動されるがイド顎３８が一体に突出成形される。   Here, the ink holder 30 is moved along the guide passage 15 so that the ink holder 30 and the operating body 74 can be moved in the vertical direction when the knob 32 is pressed together with the installation position of the operating body 74. However, the id jaws 38 are integrally projected.

前記ロック手段７０のカム通路７１，７２は、左右にそれぞれ深さと形状が異なるように成形され、先端部分にはハート状のカム受け部７３が形成されている。   The cam passages 71 and 72 of the locking means 70 are formed to have different depths and shapes on the left and right sides, and a heart-shaped cam receiving portion 73 is formed at the tip portion.

したがって、ノブ３２をユーザーが強制に押すようになると、係止突起７５がガイド通路１５に沿って最初には、直線に下降された後、一側のカム通路７１に沿って横に広げながらずっと下降される。（図９）   Therefore, when the knob 32 is forcibly pressed by the user, the locking projection 75 is first lowered along the guide passage 15 and then spreads laterally along the cam passage 71 on one side. Be lowered. (Fig. 9)

そして、ずっと下降させると、一側のカム通路７１の案内でカム受け部７３の位置まで係止突起７５を移動させて係止されるように誘導するようになる。（図１０）   Then, when it is lowered all the way, the locking projection 75 is moved to the position of the cam receiving portion 73 by the guide of the cam passage 71 on one side and guided to be locked. (Fig. 10)

この時は、インクホルダー３０のペン芯３１が筆記が可能に露出する。   At this time, the pen core 31 of the ink holder 30 is exposed so that writing is possible.

また、露出していたペン芯３１をペンハウジング１０の内部に収容しようとする時は、再びノブ３２を強く押す動作によって他側のカム通路７２の案内でカム受け部７３に係止されていた係止突起７５が係止解除された後、戻される方向にガイドされる。（図１１）   When the exposed pen core 31 is to be accommodated in the pen housing 10, it is locked to the cam receiving portion 73 by the guide of the cam passage 72 on the other side by the operation of pressing the knob 32 again. After the locking projection 75 is unlocked, it is guided in the returning direction. (Fig. 11)

この時は、インクホルダー３０を付勢するスプリング５０の弾力でノブ３２を一回加圧した後、力を取り除いてもインクホルダー３０及び作動体７４とノブ３２が最初の位置に自動で戻される。   At this time, after the knob 32 is pressed once by the elasticity of the spring 50 urging the ink holder 30, the ink holder 30, the operating body 74, and the knob 32 are automatically returned to the initial positions even if the force is removed. .

一方、略ハート状でカム受け部７３の両側に形成されるカム通路７１，７２に沿って係止突起７５が上下、左右に移動されることは、作動体７４が嵌合溝３６の位置で回転自在に設けられることによって可能になる。   On the other hand, the fact that the locking projection 75 moves up and down and left and right along the cam passages 71 and 72 formed on both sides of the cam receiving portion 73 in a substantially heart shape means that the operating body 74 is positioned at the position of the fitting groove 36. It becomes possible by being provided rotatably.

また、前記クリップ部材２０は、カム通路７１，７２とカム受け部７３との設置深さが異なるようになるので、係止突起７５と接触されながら移動される時に、その深さの差だけペンハウジング１０から距離が広がったり、狭くなる方向に変位が発生される。   Further, since the clip member 20 has different installation depths between the cam passages 71 and 72 and the cam receiving portion 73, when the clip member 20 is moved while being in contact with the locking projection 75, the difference in the depth of the clip member 20 is reduced. Displacement is generated in a direction in which the distance from the housing 10 increases or decreases.

この変位に対して対応するために、前記ペンハウジング１０には、軸孔１６を掘り出し、クリップ部材２０には、該軸孔１６へ強制的に自体弾性によって嵌合されるヒンジ軸２１が一体に成形されている。   In order to cope with this displacement, a shaft hole 16 is dug in the pen housing 10, and a hinge shaft 21 that is forcibly fitted into the shaft hole 16 by itself is integrally formed in the clip member 20. Molded.

そして、クリップ部材２０が常に作動体７４の係止突起７５に密着される方向へ弾力を維持できるようにヒンジ軸２１の一側にコイルスプリング７８を弾力として設けるようになる。   A coil spring 78 is provided as an elastic force on one side of the hinge shaft 21 so that the clip member 20 can always maintain an elastic force in a direction in which the clip member 20 is in close contact with the locking protrusion 75 of the operating body 74.

このような構成からなった本発明のロック手段７０によれば、ユーザーがノブ３２を１回プッシュすると、係止突起７５がカム受け部７３に係止されてペン芯３１が露出して筆記可能な状態に切り替えられ、再び１回プッシュすると、係止突起７５の係止が解除されながらペン芯３１がペンハウジング１０の内部に収容されて保護できるようになる。   According to the locking means 70 of the present invention having such a configuration, when the user pushes the knob 32 once, the locking protrusion 75 is locked to the cam receiving portion 73 so that the pen core 31 is exposed and writing can be performed. When the state is switched to the above state and pushed once again, the pen core 31 is housed inside the pen housing 10 and can be protected while the locking projection 75 is released.

前記のような本発明のロック装置によれば、その構造が比較的簡単でコストが安いだけでなく、故障のおそれが少なく、より製品の寿命を延ばし、信頼性を向上させることができる。   According to the locking device of the present invention as described above, not only is the structure relatively simple and the cost is low, but also there is less risk of failure, and the life of the product can be further extended and the reliability can be improved.

以上で説明した本発明は、前述した実施例及び図面によって限定されるものではなく、本発明の技術的思想を逸脱しない範囲内で、様々な置換、変形、及び変更が可能であることは、本発明が属する技術分野における通常の知識を有する者にとっては明らかであろう。   The present invention described above is not limited by the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical idea of the present invention. It will be apparent to those skilled in the art to which the present invention belongs.

１０ − ペンハウジング
１１ − ペン芯出入孔
１５ − ガイド通路
１６ − 軸孔
２０ − クリップ部材
２１ − ヒンジ軸
３０ − インクホルダー
３１ − ペン芯
３２ − ノブ
３６ − 嵌合溝
３７ − カム突起
３８ − がイド顎
４０ − 密閉部材
４１ − カバー
５０ − スプリング
６０ − ガイド部材
６１ − 係止部
６２ − 移動ホール
６７ − カム溝
７０ − ロック手段
７１，７２ − カム通路
７３ − カム受け部
７４ − 作動体
７５ − 係止突起
７８ − コイルスプリング DESCRIPTION OF SYMBOLS 10- Pen housing 11- Pen core entrance / exit hole 15- Guide passage 16- Shaft hole 20- Clip member 21- Hinge shaft 30- Ink holder 31- Pen core 32- Knob 36- Fitting groove 37- Cam protrusion 38- Id Jaw 40-Sealing member 41-Cover 50-Spring 60-Guide member 61-Locking portion 62-Moving hole 67-Cam groove 70-Locking means 71, 72-Cam passage 73-Cam receiving portion 74-Actuator 75-Engagement Stop projection 78-Coil spring

Claims (1)

中空円筒状を有し、先端部にペン芯出入孔（１１）が貫通されるペンハウジング（１０）と、
前記ペンハウジング（１０）の一側上端に備えられるクリップ部材（２０）と、
前記ペンハウジング（１０）の内部へ収容され、先端にペン芯（３１）が、他側にはノブ（３２）が結合された状態で内部にインク部材を収容しているインクホルダー（３０）と、
前記インクホルダー（３０）を付勢するスプリング（５０）と、
前記ノブ（３２）を繰り返して押入することによって前記ペン芯（３１）が前記ペンハウジング（１０）の外部へ露出した状態でロック、または内部へ収容されるようにするアンロックを繰り返すようになるロック手段（７０）が備えられ、
前記ロック手段（７０）は、前記クリップ部材（２０）の内側面で左右にそれぞれ深さと形状が異なる２つのカム通路（７１，７２）と、ハート状のカム受け部（７３）が形成され、
前記インクホルダー（３０）には、円周方向に嵌合溝（３６）が掘り出され、係止突起（７５）が突出するように設けられた中空円筒状の作動体（７４）が、前記嵌合溝（３６）に回転自在に嵌合されており、前記作動体（７４）の設置位置を制御するようにガイド通路（１５）に沿って移動されるガイド顎（３８）が一体に突出成形されており、
前記ペンハウジング（１０）には、前記ノブ（３２）の操作で前記インクホルダー（３０）及び前記作動体（７４）が２つの前記カム通路（７１，７２）に沿って移動されることをガイドするためのガイド通路（１５）が成形された筆記具において、
前記作動体（７４）は、内径が前記嵌合溝（３６）の外径と対応する寸法を有する、一定の厚さの中空円筒状であり、前記作動体（７４）は、円周上において前記係止突起（７５）と対向する部分は開けられており、前記作動体（７４）は開けられた部分が広げられて前記嵌合溝（３６）に取り付けられており、
前記作動体（７４）は一定の弾性を有しており、外力が作用した時は、円周方向に回転自在に前記嵌合溝（３６）に取り付けられており、
ハート状の前記カム受け部（７３）の両側に形成された２つの前記カム通路（７１，７２）に沿って前記係止突起（７５）が上下、左右に移動されることは、前記作動体（７４）が前記嵌合溝（３６）に回転自在に設けられていることによって可能であり、
前記クリップ部材（２０）は、上部に一体に成形されたヒンジ軸（２１）が設けられ、前記ヒンジ軸（２１）が、前記ペンハウジング（１０）に設けられた軸孔（１６）に嵌合されることにより、前記ヒンジ軸（２１）を中心に回動可能に前記ペンハウジング（１０）に取り付けられており、
前記係止突起（７５）がそれぞれ深さと形状が異なるように成形された２つの前記カム通路（７１，７２）と前記カム受け部（７３）とに沿って移動される時に、前記ヒンジ軸（２１）の外側へ前記クリップ部材（２０）と前記ペンハウジング（１０）との間に設けられたコイルスプリング（７８）によって、前記クリップ部材（２０）は、２つの前記カム通路（７１，７２）の深さの差の範囲内で前記ペンハウジング（１０）からの距離が広がる方向、および、狭くなる方向に発生される変位に対して対応して移動することになり、
前記クリップ部材（２０）は、常に前記作動体（７４）の前記係止突起（７５）に密着される方向へ弾性力が作用されていることを特徴とする出没式筆記具のプッシュロック装置。 A pen housing ( 10 ) having a hollow cylindrical shape and having a pen core insertion / removal hole ( 11 ) penetrated at a tip thereof;
A clip member ( 20 ) provided at one upper end of the pen housing ( 10 ) ;
An ink holder ( 30 ) which is housed inside the pen housing ( 10 ) , has a pen core ( 31 ) at the tip, and a knob ( 32 ) on the other side; ,
A spring ( 50 ) for urging the ink holder ( 30 ) ;
Will repeat the unlock request to the pen core (31) is housed locked or into the interior, in a state of being exposed to the outside of the pen housing (10) by push repeatedly the knob (32) Locking means ( 70 ) are provided,
It said locking means (7 0), the clip member (20), respectively the depth and shape of two different cams passage inner face to the left and right (71, 72), heart-shaped cam receiving portion (73) is formed ,
Wherein the ink holder (30), groove (36) is out digging in the circumferential direction, the locking projection (75) a hollow cylindrical actuating member provided so as to protrude is (74), wherein fitting groove (36) is rotatably fitted, the protruding guide jaws to be moved along the guide path (15) (38) together to control the installation position of the actuating body (74) Molded,
The pen housing (10), that the ink holder (30) and the actuating member in operation of the knob (32) (74) is moved along two of said cam path (71, 72) guides In a writing instrument in which a guide passage ( 15 ) is formed ,
The operating body (74) has a hollow cylindrical shape with a constant thickness, the inner diameter of which corresponds to the outer diameter of the fitting groove (36), and the operating body (74) The portion facing the locking projection (75) is opened, and the actuating body (74) is widened and attached to the fitting groove (36).
The operating body (74) has a certain elasticity, and is attached to the fitting groove (36) so as to be rotatable in the circumferential direction when an external force is applied,
The movement of the locking projection (75) up and down and left and right along the two cam passages (71, 72) formed on both sides of the heart-shaped cam receiving portion (73) (74) is possible by being rotatably provided in the fitting groove (36),
The clip member (20) is provided with a hinge shaft (21) integrally formed on the upper portion, and the hinge shaft (21) is fitted into a shaft hole (16) provided in the pen housing (10). Is attached to the pen housing (10) so as to be rotatable about the hinge shaft (21),
When the locking projection (75) is moved along the two cam passages (71, 72) and the cam receiving portion (73) formed to have different depths and shapes, the hinge shaft ( by a coil spring (78) provided between the clip member to the outside of the 21) (20) and said pen housing (10), said clip member (20), two of said cam path (71, 72) Within the range of the difference in depth of the pen housing (10) in the direction in which the distance from the pen housing (10) widens and moves in correspondence with the displacement generated in the direction of narrowing,
The clip member (20) is a push lock device for a retractable writing instrument, wherein an elastic force is always applied in a direction in which the clip member (20) is in close contact with the locking protrusion (75) of the operating body (74).
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