JP2007045139A

JP2007045139A - Refill for multiple lead writing utensil

Info

Publication number: JP2007045139A
Application number: JP2005312555A
Authority: JP
Inventors: Masashi Ando; 正史安藤
Original assignee: Pilot Ink Co Ltd
Current assignee: Pilot Ink Co Ltd
Priority date: 2005-07-13
Filing date: 2005-10-27
Publication date: 2007-02-22

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refill for multiple lead writing utensil, which makes the discrimination of color of ink easy before its housing in a barrel. <P>SOLUTION: A plurality of refills for multiple lead writing utensil are housed in the barrel 6 at their use so as to project operating bodies 4 connected with their rear ends in order to retract and extend a pen point from the fore end of the barrel 6 through the forward sliding operation of the operating body 4. Under the condition before being housed in the barrel 6, the refill consists of a ball pen tip 1 (a pen point), at the fore end of which a ball is rotatably held, an ink housing tube 3, to the fore end of which the ball pen tip 1 is fixed and within which ink is housed, and the operating body 4 (an ink color displaying part), which is connected with the rear end of the ink housing tube 3 and, at the same time, is colored with the color of the ink in the housing tube 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、多芯筆記具用レフィルに関する。詳細には、使用時に軸筒内に複数本が収容され、各々の後端に連結した操作体を軸筒の側壁より突出させ、前記操作体を前方にスライド操作することにより軸筒の前端からペン先を出没させる多芯筆記具用レフィルに関する。 The present invention relates to a refill for a multi-core writing instrument. Specifically, a plurality of tubes are accommodated in the shaft cylinder when in use, and an operating body connected to each rear end is projected from the side wall of the shaft cylinder, and the operating body is slid forward to remove the operating body from the front end of the shaft cylinder. The present invention relates to a refill for a multi-core writing instrument that causes a nib to appear.

従来、多芯筆記具用レフィルは交換可能であることが知られている（例えば、特許文献１）。 Conventionally, it is known that the refill for a multi-core writing instrument is replaceable (for example, Patent Document 1).

特開２００３−１１５８３号公報JP 2003-11583 A

前記従来の多芯筆記具用レフィルは、軸筒内に収容する前の状態（即ち軸筒の外部に存在する状態）において、後端には操作体は連結されておらず、インキ色の識別は、ペン先またはペン先保持部材のインキ色に着色された部分により行われる。前記ペン先またはペン先保持部材のインキ色に着色された部分は、比較的小さいため、確実なインキ色の識別がなし得ないおそれがある。そのため、前記従来の多芯筆記具用レフィルは、ユーザーがレフィルを店頭で購入する時またはユーザーが新たなレフィルを軸筒内に収容する時、所望するインキ色と異なるレフィルを選択してしまうおそれがある。 The conventional refill for a multi-core writing instrument is not connected to the operating body at the rear end in a state before being accommodated in the shaft cylinder (that is, in a state existing outside the shaft cylinder). This is done by the colored portion of the nib or the nib holding member. Since the portion of the pen tip or the pen tip holding member that is colored with the ink color is relatively small, there is a possibility that the ink color cannot be reliably identified. Therefore, the conventional refill for a multi-core writing instrument may select a refill different from the desired ink color when the user purchases the refill at the store or when the user stores a new refill in the shaft cylinder. is there.

本発明は、前記従来の問題点を解決するものであって、軸筒に収容する前におけるインキ色の識別が容易となる多芯筆記具用レフィルを提供しようとするものである。尚、本発明において、「前」とはペン先側を指し、「後」とは反対側を指す。また、本発明において、インキ色とは、インキ収容管内に収容されるインキの色をいう。 The present invention is intended to solve the above-described conventional problems, and to provide a refill for a multi-core writing instrument that makes it easy to identify ink colors before being accommodated in a shaft tube. In the present invention, “front” refers to the pen tip side, and “rear” refers to the opposite side. Moreover, in this invention, an ink color means the color of the ink accommodated in an ink accommodating tube.

[１]本発明は、使用時に軸筒６内に複数本収容され、各々の後端に連結した操作体４を軸筒６の側壁より突出させ、前記操作体４を前方にスライド操作することにより軸筒６の前端からペン先を出没させる多芯筆記具用レフィルであって、軸筒６内に収容される前の状態において、前端にボールが回転可能に抱持されたボールペンチップ２（ペン先）と、該ボールペンチップ２が前端に固着され且つ内部にインキが収容されたインキ収容管３と、該インキ収容管３の後端に連結され且つインキ収容管３内のインキの色に着色された操作体４（インキ色表示部）とからなること（請求項１）を要件とする。 [1] In the present invention, a plurality of operating bodies 4 are accommodated in the shaft cylinder 6 when used, and the operating bodies 4 connected to the rear ends of the operating bodies 4 are projected from the side walls of the shaft cylinder 6, and the operating bodies 4 are slid forward. Is a refill for a multi-core writing instrument in which a pen tip is projected and retracted from the front end of the shaft tube 6, and in a state before being housed in the shaft tube 6, the ball pen tip 2 (pen And the ink containing tube 3 in which the ball-point pen tip 2 is fixed to the front end and contains the ink, and the ink color connected to the rear end of the ink containing tube 3 and colored in the ink in the ink containing tube 3 It is a requirement that the operation body 4 (ink color display part) is made (claim 1).

前記多芯筆記具用レフィル１（請求項１）は、軸方向後方に比較的大きく突出された操作体４（即ちインキ色表示部）を、外部より視認することによって、インキ収容管３内のインキの色の識別が容易となり、比較的離れた位置からでも識別が可能となる。その結果、ユーザーが、多芯筆記具用レフィル１を店頭で購入する時、新たな多芯筆記具用レフィル１を軸筒６内に収容する時のいずれの場合でも、所望するインキ色と異なる多芯筆記具用レフィル１を選択してしまうおそれがない。 The refill 1 for a multi-core writing instrument (Claim 1) is configured so that the operation body 4 (that is, the ink color display portion) that protrudes relatively rearward in the axial direction is visually recognized from the outside, whereby the ink in the ink containing tube 3 is printed. Can be easily identified, and can be identified from a relatively distant position. As a result, when the user purchases the refill 1 for a multi-core writing instrument at the store, or when a new refill 1 for a multi-core writing instrument is accommodated in the shaft cylinder 6, the multi-core different from the desired ink color. There is no possibility of selecting the refill 1 for writing instruments.

［２］前記多芯筆記具用レフィル１において、前記操作体４が、小径部４２と該小径部４２より径方向寸法の大きい大径部４１とを備えること（請求項２）が好ましい。 [2] In the refill 1 for a multi-core writing instrument, it is preferable that the operating body 4 includes a small diameter part 42 and a large diameter part 41 having a larger radial dimension than the small diameter part 42 (Claim 2).

前記多芯筆記具用レフィル１（請求項２）は、前記大径部４１に大面積のインキ色表示部を構成でき、インキ色の識別が一層容易となる。また、前記多芯筆記具用レフィル１（請求項２）は、インキ収容管３と操作体４とが連結状態で、ユーザーが、軸筒６内から取り出す際及び軸筒６内に挿入する際、操作体４の大径部４１を摘みやすく、便利である。尚、前記大径部４１は、少なくとも操作体４の１箇所に設ければよいが、操作体４の複数箇所に設けることもできる。 The refill 1 for a multi-core writing instrument (Claim 2) can constitute a large-area ink color display portion on the large-diameter portion 41, and the ink color can be easily identified. In addition, the refill 1 for the multi-core writing instrument (Claim 2) has the ink containing tube 3 and the operating body 4 in a connected state, and when the user takes out from the shaft tube 6 and inserts it into the shaft tube 6, The large-diameter portion 41 of the operating body 4 is easy to pick and convenient. The large-diameter portion 41 may be provided at least at one place of the operation body 4, but can be provided at a plurality of places of the operation body 4.

［３］前記多芯筆記具用レフィル１において、前記操作体４が、インキ収容管３の外径より径方向寸法の大きい大径部４１を備えること（請求項３）が好ましい。 [3] In the refill 1 for a multi-core writing instrument, it is preferable that the operation body 4 includes a large-diameter portion 41 having a radial dimension larger than the outer diameter of the ink containing tube 3 (Claim 3).

前記多芯筆記具用レフィル１（請求項３）は、前記大径部４１に大面積のインキ色表示部を構成でき、インキ色の識別が一層容易となる。また、前記多芯筆記具用レフィル１（請求項３）は、インキ収容管３と操作体４とが連結状態で、ユーザーが、軸筒６内から取り出す際及び軸筒６内に挿入する際、操作体４の大径部４１を摘みやすく、便利である。尚、前記大径部４１は、少なくとも操作体４の１箇所に設ければよいが、操作体４の複数箇所に設けることが、一層、大面積のインキ色表示部が得られる点で好ましい。 The refill 1 for a multi-core writing instrument (Claim 3) can constitute a large-area ink color display portion on the large diameter portion 41, and the ink color can be easily identified. The refill 1 for a multi-core writing instrument (Claim 3) is in a state where the ink storage tube 3 and the operation body 4 are connected, and when the user takes out from the shaft tube 6 and inserts it into the shaft tube 6, The large-diameter portion 41 of the operating body 4 is easy to pick and convenient. The large-diameter portion 41 may be provided at least at one location of the operating body 4, but it is preferable to provide the large-diameter portion 41 at a plurality of locations on the operating body 4 in that a large area ink color display portion can be obtained.

［４］前記多芯筆記具用レフィル１において、前記大径部４１が両面に平面部４１ａを備えた板状であること（請求項４）が好ましい。 [4] In the refill 1 for a multi-core writing instrument, it is preferable that the large-diameter portion 41 has a plate shape including flat portions 41a on both surfaces (Claim 4).

前記多芯筆記具用レフィル１（請求項４）は、前記平面部４１ａが大面積のインキ色表示部となり、大面積のインキ色表示部を効率よく形成できる。また、前記多芯筆記具用レフィル１（請求項４）は、複数本を束ねたときに、操作体４同士が接触して後端部が膨らむことがなく、取り扱いが容易となる。尚、前記大径部４１は、全体として板状であるならば、前記平面部４１ａに僅かな突起や段差部を備えてもよい。 In the multi-filament writing instrument refill 1 (Claim 4), the flat surface portion 41a becomes a large area ink color display portion, and a large area ink color display portion can be efficiently formed. In addition, the multi-filament writing instrument refill 1 (Claim 4) is easy to handle because the operation bodies 4 do not come into contact with each other when the plural bundles are bundled, and the rear end portion does not swell. If the large-diameter portion 41 is plate-like as a whole, the flat surface portion 41a may be provided with slight protrusions or step portions.

［５］前記多芯筆記具用レフィル１において、前記大径部４１が操作体４の後部に設けられること（請求項５）が好ましい。 [5] In the refill 1 for a multi-core writing instrument, it is preferable that the large-diameter portion 41 is provided at the rear portion of the operating body 4 (Claim 5).

前記多芯筆記具用レフィル１（請求項５）は、大径部４１がインキ収容管３の後端より後方に突出する旗竿に取り付けた旗のように視覚でき、操作体４（インキ色表示部）の外観性が向上する。また、前記多芯筆記具用レフィル１（請求項５）は、大径部４１が操作体４の後部に形成されるため、インキ収容管３と操作体４とが連結状態で、ユーザーが、軸筒６内から取り出す際及び軸筒６内に挿入する際、操作体４の大径部４１を、一層、摘みやすく便利である。 The refill 1 for a multi-core writing instrument (Claim 5) can be viewed as a flag attached to a flagpole with a large-diameter portion 41 protruding rearward from the rear end of the ink containing tube 3, and the operation body 4 (ink color display portion). ). Further, in the refill 1 for a multi-core writing instrument (Claim 5), since the large diameter portion 41 is formed at the rear portion of the operation body 4, the ink containing tube 3 and the operation body 4 are connected, and the user can When taking out from the cylinder 6 and inserting it into the shaft cylinder 6, the large diameter portion 41 of the operating body 4 is easier to pick and convenient.

［６］前記多芯筆記具用レフィル１において、前記操作体４の面積が最も大きく視認される状態において、前記操作体４の視認面積がインキ収容管３の視認面積の１０％以上に設定されること（請求項６）が好ましい。 [6] In the refill 1 for the multi-core writing instrument, the viewing area of the operating body 4 is set to 10% or more of the viewing area of the ink containing tube 3 in a state where the area of the operating body 4 is viewed most greatly. (Claim 6) is preferable.

前記多芯筆記具用レフィル１（請求項６）は、より一層、インキ色の識別が確実となる。もし、操作体４の視認面積が、インキ収容管３の視認面積の１０％未満の場合、操作体４によるインキ色の識別が困難となる。尚、前記視認面積とは、一定の方向から多芯筆記具用レフィル１を視認したときの面積をいう。 The multi-filament writing instrument refill 1 (Claim 6) further ensures the identification of the ink color. If the visual recognition area of the operation body 4 is less than 10% of the visual recognition area of the ink containing tube 3, it is difficult to identify the ink color by the operation body 4. In addition, the said visual recognition area means an area when the refill 1 for multi-core writing instruments is visually recognized from a fixed direction.

［７］前記多芯筆記具用レフィル１において、透明材料からなる包装袋５に収容されてなること（請求項７）が好ましい。 [7] The refill 1 for a multi-core writing instrument is preferably contained in a packaging bag 5 made of a transparent material (Claim 7).

前記多芯筆記具用レフィル１（請求項７）は、インキ色に着色された操作体４を容易に視認できるとともに、ユーザーが購入する前までに操作体４がインキ収容管３から外れることを防止できる。 The multi-filament writing instrument refill 1 (Claim 7) can easily recognize the operation body 4 colored in ink color and prevents the operation body 4 from being detached from the ink containing tube 3 before the user purchases it. it can.

［８］前記多芯筆記具用レフィル１において、前記包装袋５に収容された状態で、前記操作体４の最大視認面積を包装袋５の外部正面から視認可能であること（請求項８）が好ましい。 [8] In the refill 1 for the multi-core writing instrument, the maximum visible area of the operation body 4 can be visually recognized from the outside front of the packaging bag 5 in a state of being accommodated in the packaging bag 5 (claim 8). preferable.

前記多芯筆記具用レフィル１（請求項８）は、包装袋５に収容された状態において、操作体４の最大視認面積が包装袋５の外部正面から視認可能であることにより、操作体４が収容された部分の包装袋５の厚みが増加するおそれがなく、限られた保管スペースに多芯筆記具用レフィル１が入った多数の包装袋５を重ねた状態で保管することができる。 When the refill 1 for a multi-core writing instrument (Claim 8) is accommodated in the packaging bag 5, the maximum viewing area of the operating body 4 is visible from the outside front of the packaging bag 5. There is no possibility that the thickness of the packaging bag 5 in the housed portion increases, and a large number of packaging bags 5 containing the refill 1 for a multi-core writing instrument can be stored in a limited storage space.

［９］前記多芯筆記具用レフィル１において、前記操作体４がインキ収容管３の外径より径方向寸法の大きい大径部４１を備え、前記大径部４１が両面に平面部４１ａを備えた板状であり、前記包装袋５に収容された状態において、前記操作体４の大径部４１の平面部４１ａ（最大視認面積）が包装袋５の外部正面より視認可能であること（請求項９）が好ましい。 [9] In the refill 1 for a multi-core writing instrument, the operating body 4 includes a large diameter portion 41 having a radial dimension larger than the outer diameter of the ink containing tube 3, and the large diameter portion 41 includes flat portions 41a on both sides. The flat portion 41a (maximum visual recognition area) of the large diameter portion 41 of the operation body 4 is visible from the outside front of the packaging bag 5 in a state of being in the shape of a plate and housed in the packaging bag 5. Item 9) is preferable.

前記多芯筆記具用レフィル１（請求項９）は、包装袋５に収容された状態において、前記操作体４の大径部４１の平面部４１ａ（最大視認面積）が包装袋５の外部正面から視認可能であることより、操作体４が収容された部分の包装袋５の厚みが増加するおそれがなく、限られた保管スペースに多芯筆記具用レフィル１が入った多数の包装袋５を重ねた状態で保管することができる。 When the refill 1 for a multi-core writing instrument (Claim 9) is housed in the packaging bag 5, the planar portion 41a (maximum visible area) of the large-diameter portion 41 of the operating body 4 is from the outside front of the packaging bag 5. Since it is visible, there is no risk that the thickness of the packaging bag 5 in which the operation body 4 is accommodated will increase, and a large number of packaging bags 5 containing the refill 1 for a multi-core writing instrument are stacked in a limited storage space. Can be stored in a wet state.

［１０］前記多芯筆記具用レフィル１において、前記包装袋５が一端に吊下孔５１を備え、前記レフィル１が包装袋５に収容された状態において、前記吊下孔５１側に操作体４が配置されること（請求項１０）が好ましい。 [10] In the refill 1 for a multi-core writing instrument, the packaging bag 5 includes a suspension hole 51 at one end, and the operating body 4 is disposed on the suspension hole 51 side in a state where the refill 1 is accommodated in the packaging bag 5. (Claim 10) is preferable.

前記多芯筆記具用レフィル１（請求項１０）は、包装袋５が吊り下げ状態の際、ボールペンチップ２（ペン先）が下向きになり、インキ収容管３内のインキの後退を防止できる。また、操作体４が上方に位置されるため、ユーザーが、購入時、操作体４のインキ色表示を識別しながら包装袋５を取り外すことが容易となる。 The refill 1 for a multi-core writing instrument (Claim 10) can prevent the ink in the ink containing tube 3 from retreating when the packaging bag 5 is in the suspended state, with the ballpoint pen tip 2 (pen tip) facing downward. Further, since the operation body 4 is positioned above, it is easy for the user to remove the packaging bag 5 while identifying the ink color display of the operation body 4 at the time of purchase.

［１１］前記多芯筆記具用レフィル１において、前記包装袋５が一端に吊下孔５１を備え、前記レフィル１が包装袋５に収容された状態において、前記吊下孔５１側にボールペンチプ２が配置されること（請求項１１）が好ましい。 [11] In the refill 1 for a multi-core writing instrument, the packaging bag 5 is provided with a suspension hole 51 at one end, and the ballpoint pen tip 2 is disposed on the suspension hole 51 side in a state where the refill 1 is accommodated in the packaging bag 5. (Claim 11) is preferable.

前記多芯筆記具用レフィル１（請求項１０）は、包装袋５が吊り下げ状態の際、ボールペンチップ２（ペン先）が上向きになり、ボールペンチップ２の先端からインキが漏出するおそれがない。 The refill 1 for a multi-core writing instrument (Claim 10) is such that when the packaging bag 5 is in a suspended state, the ball-point pen tip 2 (pen tip) faces upward, and there is no risk of ink leaking from the tip of the ball-point pen tip 2.

［１２］前記多芯筆記具用レフィル１において、前記包装袋５が一端に吊下孔５１を備え、前記吊下孔５１近傍の包装袋５の表面に、インキ収容管３内のインキの色に着色した着色部５２を設けたこと（請求項１２）が好ましい。尚、前記吊下孔５１は、切り欠き状またはフック状に形成することもできる。 [12] In the refill 1 for a multi-core writing instrument, the packaging bag 5 has a suspension hole 51 at one end, and the surface of the packaging bag 5 in the vicinity of the suspension hole 51 has an ink color in the ink containing tube 3. It is preferable that a colored portion 52 is provided (claim 12). The suspension hole 51 can be formed in a notch shape or a hook shape.

前記多芯筆記具用レフィル１（請求項１２）は、前記吊下孔５１近傍の包装袋５表面の着色部５２と、インキ色に着色された操作体４とを同時に視認できるため、インキ色の識別が、一層、容易となり、比較的離れた位置からでもインキ色の識別が可能となる。 Since the multi-filament writing instrument refill 1 (Claim 12) can simultaneously see the colored portion 52 on the surface of the packaging bag 5 near the suspension hole 51 and the operation body 4 colored in ink color, Identification is further facilitated, and ink color can be identified even from a relatively distant position.

［１３］前記多芯筆記具用レフィル１において、前記インキ収容管３が透明または半透明の材料により構成され、前記インキ収容管３内に収容されるインキが染料インキであること（請求項１３）が好ましい。 [13] In the refill 1 for a multi-core writing instrument, the ink storage tube 3 is made of a transparent or translucent material, and the ink stored in the ink storage tube 3 is a dye ink (claim 13). Is preferred.

前記多芯筆記具用レフィル１（請求項１３）は、インキ収容管３内に収容のインキが染料インキ（着色剤として染料を含有するインキ）であるため、顔料インキの場合に比べ、インキ収容管３を視認してもインキ色を識別することが容易でないが、それによって、かえって、インキ色に着色された操作体４が、色彩的なアクセントとして際立ち、レフィル全体の外観性が向上する。前記染料インキは、水性インキ、油性インキのいずれであってもよい。 The refill 1 for a multi-core writing instrument (Claim 13) is an ink containing tube compared to a pigment ink because the ink contained in the ink containing tube 3 is dye ink (ink containing a dye as a colorant). Although it is not easy to identify the ink color even if the user visually recognizes 3, the operation body 4 colored in the ink color stands out as a color accent, and the appearance of the entire refill is improved. The dye ink may be either water-based ink or oil-based ink.

［１４］前記多芯筆記具用レフィル１において、前記ボールペンチップ２の前端にペン先乾燥防止用の被覆樹脂２１が固着されてなること（請求項１４）が好ましい。 [14] In the refill 1 for a multi-core writing instrument, it is preferable that a coating resin 21 for preventing pen tip drying is fixed to the front end of the ballpoint pen tip 2 (claim 14).

前記多芯筆記具用レフィル１（請求項１４）は、ボールペンチップ２の前端にペン先乾燥防止用の被覆樹脂２１が固着されてなることにより、操作体４の連結された状態でユーザーが筆記使用開始するまで、ペン先の乾燥を防止し、適正に保管することができる。特に、前記多芯筆記具用レフィル１（請求項１４）は、蒸発が生じやすい水性インキの場合に有効である。 The refill 1 for a multi-core writing instrument (Claim 14) is used by a user in a state in which the operation body 4 is connected to the front end of the ballpoint pen tip 2 with a coating resin 21 for preventing a pen tip from drying. Until it starts, the nib can be prevented from drying out and stored properly. In particular, the refill 1 for a multi-core writing instrument (Claim 14) is effective in the case of a water-based ink that easily evaporates.

請求項１によれば、インキ色の識別が容易となり、比較的離れた位置からでも識別が可能となる。その結果、ユーザーが所望するインキ色と異なるレフィルを選択してしまうおそれがない。 According to the first aspect, the ink color can be easily identified and can be identified even from a relatively distant position. As a result, there is no possibility of selecting a refill different from the ink color desired by the user.

請求項２によれば、大径部に大面積のインキ色表示部を構成でき、インキ色の識別が一層容易となる。 According to the second aspect, an ink color display portion having a large area can be formed on the large diameter portion, and the identification of the ink color is further facilitated.

請求項３によれば、大径部に大面積のインキ色表示部を構成でき、インキ色の識別が一層容易となる。 According to the third aspect, an ink color display portion having a large area can be formed on the large diameter portion, and the identification of the ink color is further facilitated.

請求項４によれば、大面積のインキ色表示部を効率よく形成できる。 According to the fourth aspect, an ink color display portion having a large area can be formed efficiently.

請求項５によれば、操作体の外観性が向上する。 According to the fifth aspect, the appearance of the operating body is improved.

請求項６によれば、より一層、インキ色の識別が確実となる。 According to the sixth aspect, the ink color can be more reliably identified.

請求項７によれば、インキ色に着色された操作体を容易に視認できるとともに、ユーザーが購入する前までに操作体がインキ収容管から外れることを防止できる。 According to the seventh aspect, it is possible to easily visually recognize the operation body colored in the ink color, and it is possible to prevent the operation body from being detached from the ink storage tube before the user purchases it.

請求項８によれば、操作体が収容された部分の包装袋の厚みが増加するおそれがなく、限られた保管スペースに多芯筆記具用レフィルが入った多数の包装袋を重ねた状態で保管することができる。 According to claim 8, there is no fear that the thickness of the portion of the packaging bag in which the operation body is accommodated, and the packaging bag is stored in a state where a large number of packaging bags containing the refill for the multi-core writing instrument are stacked in a limited storage space. can do.

請求項９によれば、操作体が収容された部分の包装袋の厚みが増加するおそれがなく、限られた保管スペースに多芯筆記具用レフィルが入った多数の包装袋を重ねた状態で保管することができる。 According to the ninth aspect, there is no risk that the thickness of the packaging bag in which the operating body is accommodated increases, and a large number of packaging bags containing multi-filament refills are stored in a limited storage space. can do.

請求項１０によれば、包装袋が吊り下げ状態の際、ペン先が下向きになり、インキ収容管内のインキの後退を防ぐとともに、操作体が上方に位置され、ユーザーが、購入時、操作体のインキ色表示を識別しながら、包装袋を取り外すことが容易となる。 According to the tenth aspect, when the packaging bag is in a suspended state, the pen tip is directed downward to prevent the ink from retreating in the ink containing tube, and the operation body is positioned upward. It becomes easy to remove the packaging bag while identifying the ink color indication.

請求項１１によれば、包装袋が吊り下げ状態の際、ペン先が上向きになり、ボールペンチップの先端からのインキの漏出を防ぐことができる。 According to the eleventh aspect, when the packaging bag is in the suspended state, the pen tip is directed upward, and ink leakage from the tip of the ball-point pen tip can be prevented.

請求項１２によれば、インキ色の識別が、一層、容易となり、比較的離れた位置からでもインキ色の識別が可能となる。 According to the twelfth aspect, the ink color can be easily identified, and the ink color can be identified even from a relatively distant position.

請求項１３によれば、インキ色に着色された操作体が、色彩的なアクセントとして際立ち、レフィル全体の外観性が向上する。 According to the thirteenth aspect, the operation body colored in the ink color stands out as a color accent, and the appearance of the entire refill is improved.

請求項１４によれば、操作体が連結された状態で、ユーザーが筆記使用開始するまで、ペン先の乾燥を防止し、適正に保管することができる。 According to the fourteenth aspect, the pen nib can be prevented from being dried and properly stored until the user starts writing using the operating body connected.

図１乃至図６に本発明の実施の形態を示す。
図1及び図２に示すように、本実施の形態の多芯筆記具用レフィル１は、主に、ボールペンチップ２と、インキ収容管３と、操作体４とからなる。 1 to 6 show an embodiment of the present invention.
As shown in FIGS. 1 and 2, the multi-filament writing instrument refill 1 of the present embodiment mainly includes a ball-point pen tip 2, an ink containing tube 3, and an operating body 4.

（ボールペンチップ）
前記ボールペンチップ２は、前端に回転可能にボールが抱持される。前記ボールペンチップ２は、金属製細管の先端に内方への押圧変形によりボール受け座を形成するタイプ、または、金属製本体の先端の内面に切削加工によりボール受け座を形成するタイプのいずれであってもよい。 (Ballpoint pen tip)
The ballpoint pen tip 2 holds a ball rotatably at the front end. The ball-point pen tip 2 is either of a type in which a ball receiving seat is formed by inward pressing deformation at the tip of a metal thin tube, or a type in which a ball receiving seat is formed by cutting on the inner surface of the tip of the metal main body. There may be.

前記ボールペンチップ２の前端には、ペン先乾燥防止用の被覆樹脂が固着されている。前記被覆樹脂は、筆記使用開始時にはユーザーによって取り除かれる。 At the front end of the ball-point pen tip 2, a coating resin for preventing the pen tip from drying is fixed. The coating resin is removed by the user when writing is started.

また、前記ボールペンチップ２は、前端に回転可能に抱持されたボールを弾発体等により前方に付勢し、前端縁部の内面にボールを密接させる構成でもよい。また、前記ボールペンチップ２は、インキ収容管３の前端開口部に圧入等により直接、取り付けてもよいが、本実施の形態では合成樹脂製のペン先保持部材２２を介してインキ収容管３の前端開口部に固着される。前記ペン先保持部材２２は、インキ色に着色された合成樹脂の成形体により得られる。 Further, the ballpoint pen tip 2 may be configured such that a ball held rotatably at the front end is urged forward by a projectile or the like, and the ball is brought into close contact with the inner surface of the front end edge portion. In addition, the ballpoint pen tip 2 may be directly attached to the front end opening of the ink containing tube 3 by press fitting or the like. In this embodiment, the ball pen tip 2 is attached to the ink containing tube 3 via the pen tip holding member 22 made of synthetic resin. Fixed to the front end opening. The pen point holding member 22 is obtained by a synthetic resin molded body colored in ink color.

（操作体）
前記インキ収容管３の後端開口部には、操作体４が取り付けられる。前記操作体４は、操作部４３と、前側突出部４４と、後側突出部４５と、嵌入部４６と、鍔部４７とを備える。前記操作部４３は、後端部に形成され且つ軸筒６の窓孔８１から外部に突出される。前記後側突出部４５は、前記操作部４３の反対側に設けられる。前記前側突出部４４は、前記操作部４３の反対側の後側突出部４５の前方に設けられる。前記嵌入部４６は、操作体４の前端部に形成され且つインキ収容管３の後端開口部に嵌入される。前記鍔部４７は、前記嵌入部４６の後方に形成される。 (Operation body)
An operation body 4 is attached to the rear end opening of the ink containing tube 3. The operation body 4 includes an operation part 43, a front protrusion part 44, a rear protrusion part 45, a fitting part 46, and a flange part 47. The operation portion 43 is formed at the rear end portion and protrudes from the window hole 81 of the shaft tube 6 to the outside. The rear projecting portion 45 is provided on the opposite side of the operation portion 43. The front protrusion 44 is provided in front of the rear protrusion 45 on the opposite side of the operation portion 43. The insertion portion 46 is formed at the front end portion of the operation body 4 and is inserted into the rear end opening portion of the ink containing tube 3. The flange portion 47 is formed behind the fitting portion 46.

前記嵌入部４６は、インキ収容管３の後端開口部に嵌入された際、インキ収容管３の後端開口部を完全には塞がず、インキ収容管３の内部と外部とを通気可能にする。また、前記鍔部４７の前面には、弾発体１０の後端が係止される。 The insertion portion 46 does not completely block the rear end opening of the ink storage tube 3 when inserted into the rear end opening of the ink storage tube 3, and can vent the inside and the outside of the ink storage tube 3. To. Further, the rear end of the projectile 10 is locked to the front surface of the flange portion 47.

（大径部）
本実施の形態では、前記操作部４３と前側突出部４４と後側突出部４５とにより、一つの大径部４１が構成される。前記大径部４１の径方向寸法Ａは、インキ収容管３の外径Ｂより大きく設定される。具体的には、前記大径部４１の径方向寸法Ａは、インキ収容管３の外径Ｂの２倍以上に設定されることが好ましい。前記大径部４１は、両面（即ち表面と裏面）に平面部４１ａを備える板状に形成される。前記板状の大径部４１は、インキ収容管３の外径と略等しい厚み寸法を有する。また、前記操作体４の両方の側壁（大径部４３の平面部４１ａ）には抜け止め突起（図示せず）が形成される。前記抜け止め突起は窓孔８１の両方の側壁内面に係合可能である。 (Large diameter part)
In the present embodiment, one large-diameter portion 41 is configured by the operation portion 43, the front side protruding portion 44, and the rear side protruding portion 45. The radial dimension A of the large diameter portion 41 is set larger than the outer diameter B of the ink containing tube 3. Specifically, the radial dimension A of the large diameter portion 41 is preferably set to be twice or more the outer diameter B of the ink containing tube 3. The large-diameter portion 41 is formed in a plate shape having flat portions 41a on both surfaces (that is, the front surface and the back surface). The plate-like large-diameter portion 41 has a thickness dimension substantially equal to the outer diameter of the ink containing tube 3. Further, a retaining protrusion (not shown) is formed on both side walls of the operating body 4 (the flat portion 41a of the large diameter portion 43). The retaining protrusions can be engaged with the inner surfaces of both side walls of the window hole 81.

また、鍔部４７と大径部４１の間（即ち鍔部４７の後方且つ大径部４１の前方）には、大径部４１より径方向寸法の小さい小径部４２が形成される。また、前記小径部４２は、インキ収容管３の外径Ｂより小さい径方向寸法を有する。それにより、操作体４を視認した際、大径部４１をより一層目立たせることができ、大径部４１と小径部４２とが、旗と旗竿のように視覚され、インキ色表示部としての操作体４の外観性が向上する。 Further, a small diameter portion 42 having a smaller radial dimension than the large diameter portion 41 is formed between the flange portion 47 and the large diameter portion 41 (that is, behind the flange portion 47 and in front of the large diameter portion 41). The small diameter portion 42 has a smaller radial dimension than the outer diameter B of the ink containing tube 3. Thereby, when the operating body 4 is visually recognized, the large-diameter portion 41 can be made more conspicuous, and the large-diameter portion 41 and the small-diameter portion 42 are visually recognized as a flag and a flagpole, and serve as an ink color display portion. The appearance of the operation body 4 is improved.

前記操作体４は、連結されるインキ収容管３の内部に収容されたインキの色と略同じ色に着色される。具体的には、前記操作体４は、連結されるインキ収容管３内のインキの色と略同じ色に着色された合成樹脂の成形体からなる。それにより、前記操作体４は、インキ色表示部となる。例えば、前記操作体４は、内部に黒色インキが収容されたインキ収容管３に連結する操作体４は黒色に着色され、内部に青色インキが収容されたインキ収容管３に連結する操作体４は青色に着色され、内部に赤色インキが収容されたインキ収容管３に連結する操作体４は赤色に着色され、内部に緑色インキが収容されたインキ収容管３に連結する操作体４は緑色に着色される。 The operation body 4 is colored in substantially the same color as the color of the ink stored in the ink storage tube 3 to be connected. Specifically, the operation body 4 is formed of a synthetic resin molded body colored in substantially the same color as the color of ink in the ink storage tube 3 to be connected. Thereby, the operation body 4 becomes an ink color display portion. For example, the operating body 4 is connected to the ink containing tube 3 in which black ink is accommodated, and the operating body 4 connected to the ink containing tube 3 in which blue ink is accommodated is colored. Is colored blue, the operating body 4 connected to the ink containing tube 3 containing red ink inside is colored red, and the operating body 4 connected to the ink containing tube 3 containing green ink inside is green Colored.

（インキ収容管）
インキ収容管３は、透明または半透明の合成樹脂の押出成形により得られ、両端が開口された直円筒体からなる。前記インキ収容管３の内部には、剪断減粘性を有する水性の染料インキが収容され、前記インキの後端には、インキの消費に伴って前進する高粘度流体からなる追従体が充填される。 (Ink tube)
The ink containing tube 3 is obtained by extrusion molding of a transparent or translucent synthetic resin, and is formed of a straight cylindrical body having both ends opened. A water-based dye ink having shear thinning viscosity is accommodated in the ink storage tube 3, and a follower made of a high-viscosity fluid that advances as the ink is consumed is filled at the rear end of the ink. .

（視認面積）
本実施の形態では、操作体４の面積が最も大きく視認される状態は、前記大径部４１の平面部４１ａを視認する場合（図1の状態）である。前記図1の状態において、操作体４の視認面積は、インキ収容管３の視認面積の３８％に設定されている。 (Viewing area)
In the present embodiment, the state in which the area of the operation body 4 is visually recognized is the case where the flat surface portion 41a of the large diameter portion 41 is visually recognized (state in FIG. 1). In the state of FIG. 1, the viewing area of the operation body 4 is set to 38% of the viewing area of the ink containing tube 3.

（包装袋）
図３及び図４に、図1及び図２の多芯筆記具用レフィル１を包装袋５に収容した状態を示す。多芯筆記具用レフィル１は、透明材料（透明プラスチックフィルム）よりなる長方形形状の包装袋５の内部に収容される。前記一つの包装袋５に対して、1本の多芯筆記具用レフィル１が収容され、それにより、ユーザーが好みのインキ色のレフィルを自由に組合せて多芯筆記具として使用できる。 (Packaging bag)
3 and 4 show a state in which the refill 1 for a multi-core writing instrument shown in FIGS. 1 and 2 is accommodated in a packaging bag 5. The refill 1 for a multi-core writing instrument is accommodated in a rectangular packaging bag 5 made of a transparent material (transparent plastic film). One refill 1 for a multi-core writing instrument is accommodated in the one packaging bag 5, so that a user can freely combine refills of ink colors of their choice and use it as a multi-core writing instrument.

前記包装袋５は、一端に吊下孔５１が形成される。前記吊下孔５１の周囲の包装袋５表面（即ち吊下孔５１を備えたヘッダー部）には、印刷により、内部に収容した多芯筆記具用レフィル１のインキ色に着色された着色部５２が設けられる。 The packaging bag 5 has a suspension hole 51 at one end. A colored portion 52 colored on the surface of the packaging bag 5 around the suspension hole 51 (that is, the header portion provided with the suspension hole 51) is colored by the ink color of the refill 1 for a multicore writing instrument housed therein. Is provided.

図３に示すように、前記多芯筆記具用レフィル１を包装袋５内に収容した状態において、操作体４は吊下孔５１側に位置され、一方、ボールペンチップ２はその吊下孔５１側と反対側に位置される。そのため、包装袋５を吊り下げ状態にすると、ボールペンチップ２側が下向きになり、上側に操作体４が位置することになる。 As shown in FIG. 3, in a state where the refill 1 for a multi-core writing instrument is accommodated in a packaging bag 5, the operating body 4 is positioned on the hanging hole 51 side, while the ballpoint pen tip 2 is on the hanging hole 51 side. Located on the opposite side. Therefore, when the packaging bag 5 is in a suspended state, the ball-point pen tip 2 side faces downward, and the operating body 4 is positioned on the upper side.

図４に示すように、前記多芯筆記具用レフィル１を包装袋５内に収容した状態において、ボールペンチップ２は吊下孔５１側に位置され、一方、操作体４はその吊下孔５１側と反対側に位置される。そのため、包装袋５を吊り下げ状態にすると、ボールペンチップ２側が上向きになり、下側に操作体４が位置することになる。その結果、ボールペンチップ２の先端からインキが漏出するおそれがない。また、図４の場合、包装袋５の吊下孔５１と反対側の端部がボールペンチップ２の先端によって損傷するおそれがない。また、図４の場合、包装袋５の吊下孔５１と反対側の端部に開閉口を設けることにより、包装袋５に開閉口を通してレフィルを出し入れする際、操作体４から容易に出し入れでき、ボールペンチップ２先端の損傷を防ぐことができる。 As shown in FIG. 4, in the state where the refill 1 for a multi-core writing instrument is accommodated in the packaging bag 5, the ball-point pen tip 2 is positioned on the suspension hole 51 side, while the operating body 4 is on the suspension hole 51 side. Located on the opposite side. Therefore, when the packaging bag 5 is in a suspended state, the ball-point pen tip 2 side faces upward, and the operating body 4 is positioned on the lower side. As a result, there is no risk of ink leaking from the tip of the ballpoint pen tip 2. In the case of FIG. 4, the end of the packaging bag 5 opposite to the suspension hole 51 is not likely to be damaged by the tip of the ballpoint pen tip 2. In the case of FIG. 4, by providing an opening / closing port at the end of the packaging bag 5 opposite to the suspension hole 51, when the refill is taken in / out of the packaging bag 5 through the opening / closing port, it can be easily taken in / out from the operation body 4. Further, damage to the tip of the ballpoint pen tip 2 can be prevented.

前記多芯筆記具用レフィル１を包装袋５内に収容した状態において、操作体４の板状の大径部４１の平面部４１ａ（最大視認面積）は、包装袋５の外部正面から視認される向きに配置される。それにより、操作体４が収容された部分の包装袋５の厚みが増加するおそれがなく、限られた保管スペースに多芯筆記具用レフィル１が入った多数の包装袋５を重ねた状態で保管することができる。 In a state in which the multifil writing instrument refill 1 is housed in the packaging bag 5, the flat surface portion 41 a (maximum viewing area) of the plate-like large-diameter portion 41 of the operating body 4 is visually recognized from the outside front of the packaging bag 5. Arranged in the direction. Thereby, there is no possibility that the thickness of the packaging bag 5 in the portion in which the operating body 4 is accommodated, and the packaging bag 5 containing the refill 1 for the multi-core writing instrument is stored in a limited storage space in a stacked state. can do.

また、前記吊り下げ陳列状態にある多芯筆記具用レフィル１入り包装袋５をユーザーが購入する際、インキ色に着色された操作体４及び着色部５２を同時に視認でき、インキ色の識別が、比較的離れた位置からでも可能となる。 Further, when the user purchases the packaging bag 5 containing the refill 1 for a multi-core writing instrument in the suspended display state, the operation body 4 and the colored portion 52 colored in the ink color can be visually recognized at the same time, and the ink color can be identified. It is possible even from a relatively remote position.

図５に、本実施の形態の多芯筆記具用レフィル１を多芯筆記具の軸筒６内に収容した状態を示す。 In FIG. 5, the state which accommodated the refill 1 for multi-core writing instruments of this Embodiment in the axial cylinder 6 of a multi-core writing instrument is shown.

多芯筆記具は、軸筒６内に複数本（具体的には２本）のインキ色の互いに異なる多芯筆記具用レフィル１が前後方向に移動可能に収容されている。前記各々の多芯筆記具用レフィル１は、弾発体１０（具体的には圧縮コイルスプリング）により、後方に付勢されている。 In the multi-core writing instrument, a plurality of (specifically, two) multi-core writing instrument refills 1 having different ink colors are accommodated in a shaft tube 6 so as to be movable in the front-rear direction. Each of the refills 1 for a multi-core writing instrument is urged rearward by an elastic body 10 (specifically, a compression coil spring).

前記軸筒６は、先細状の円筒体からなる前軸７と、該前軸７の後端部と螺合または圧入により取り付けられる円筒状の後軸８とからなる。前記前軸７の前端には、レフィル１のボールペンチップ２が突出可能な前端孔７１が軸方向に貫設される。前記前軸７及び後軸８は、合成樹脂（例えば、ポリカーボネイト等）の射出成形により得られる。 The shaft cylinder 6 includes a front shaft 7 formed of a tapered cylindrical body, and a cylindrical rear shaft 8 attached to the rear end portion of the front shaft 7 by screwing or press-fitting. A front end hole 71 through which the ballpoint pen tip 2 of the refill 1 can protrude is provided in the front end of the front shaft 7 in the axial direction. The front shaft 7 and the rear shaft 8 are obtained by injection molding of a synthetic resin (for example, polycarbonate).

前記後軸８の後部の側壁には、複数本（具体的には２本）の前後方向に延びる細長状の窓孔８１が、径方向に貫設される。前記２本の窓孔８１は、互いに、軸線に対して対称の位置に形成される。また、前記後軸８の後端部には、軸方向に貫通し且つ径方向外方に開口する開口部８２が形成される。前記開口部８２は、後軸８の後端（即ち軸筒６の後端）において窓孔８１と連通され、それにより、窓孔８１後端が後方に切り欠かれ、後方に開口されている。一方、前記窓孔８１の前端は常時閉鎖されている。前記各々の窓孔８１から径方向外方に各々の操作体４の操作部４３が突出される。 A plurality of (specifically, two) elongated window holes 81 extending in the front-rear direction are provided in a radial direction in the rear side wall of the rear shaft 8. The two window holes 81 are formed symmetrically with respect to the axis. In addition, an opening 82 that penetrates in the axial direction and opens outward in the radial direction is formed at the rear end of the rear shaft 8. The opening 82 communicates with the window hole 81 at the rear end of the rear shaft 8 (that is, the rear end of the shaft cylinder 6), whereby the rear end of the window hole 81 is notched rearward and opened rearward. . On the other hand, the front end of the window hole 81 is always closed. The operation part 43 of each operation body 4 protrudes radially outward from each window hole 81.

また、前記後軸８の窓孔８１の相互間の側壁内面には、前後方向に延びるリブよりなる係止壁部が形成され、前記係止壁部に、ペン先が突出した際の多芯筆記具用レフィル１の操作体４の後端が係止される。 Further, a locking wall portion made of a rib extending in the front-rear direction is formed on the inner surface of the side wall between the window holes 81 of the rear shaft 8, and the multi-core when the pen tip protrudes into the locking wall portion. The rear end of the operating body 4 of the writing instrument refill 1 is locked.

前記後軸８の窓孔８１の相互間の側壁外面には、クリップ８３が設けられる。 A clip 83 is provided on the outer surface of the side wall between the window holes 81 of the rear shaft 8.

前記後軸８の後端部には、前記開口部８２を開閉自在にする蓋部９が回動自在に設けられる。前記蓋部９の一端部は、クリップ基部に、ヒンジ部９２により回動自在に接続される。前記ヒンジ部９２は、ペン先下向きでクリップ８３を正面視したときのクリップ８３の左右方向に延設され、それにより、前記蓋部９は、略前後方向に回動自在となる。前記蓋部９の前面には、当接壁部９１が形成される。前記当接壁部９１に、没入状態の多芯筆記具用レフィル１の後端に連結された各々の操作体４の後端が、衝止される。本実施の形態では、前記ヒンジ部９２は、具体的には、回動軸により回動自在に接続される構成が採用されているが、これ以外にも、屈曲変形可能な可撓性を有する連結部または薄肉部により一体に接続される構成であってもよい。 At the rear end portion of the rear shaft 8, a lid portion 9 that allows the opening portion 82 to be opened and closed is rotatably provided. One end of the lid 9 is pivotally connected to the clip base by a hinge 92. The hinge portion 92 extends in the left-right direction of the clip 83 when the clip 83 is viewed from the front with the pen tip facing downward, whereby the lid portion 9 is rotatable in a substantially front-rear direction. An abutting wall portion 91 is formed on the front surface of the lid portion 9. The rear end of each operation body 4 connected to the rear end of the refill 1 for the multi-core writing instrument in an immersive state is stopped against the contact wall 91. In the present embodiment, specifically, the hinge portion 92 is configured to be pivotally connected by a pivot shaft. However, in addition to this, the hinge portion 92 has flexibility capable of bending deformation. The structure connected integrally by a connection part or a thin part may be sufficient.

前記蓋部９の他端部の前面には、係合部９３が設けられる（具体的には係合凹部または係合孔部が形成される）。後軸８の後端には、前記係合部９３と係合可能な被係合部８４が設けられる（具体的には係合凸部が突設される）。前記係合部９３（係合凹部または係合孔部）の内面には、内向突起が形成され、一方、前記被係合部８４（係合凸部）の外面には、前記内向突起と乗り越え係止可能な外向突起が形成される。 An engagement portion 93 is provided on the front surface of the other end portion of the lid portion 9 (specifically, an engagement recess or an engagement hole portion is formed). An engaged portion 84 that can engage with the engaging portion 93 is provided at the rear end of the rear shaft 8 (specifically, an engaging convex portion protrudes). An inward projection is formed on the inner surface of the engagement portion 93 (engagement recess or engagement hole), while the outer surface of the engaged portion 84 (engagement projection) climbs over the inward projection. A lockable outward projection is formed.

前記係合部９３と前記被係合部８４とは、蓋部９が開口部８２を閉鎖した際、互いに係合状態にあり（具体的には内向突起と外向突起が乗り越え係止状態にあり）、弾発体１０の後方への付勢による操作体４と蓋部９前面の当接壁部９１との当接では、その係合状態は解除されず、蓋部９が開くことはない。 The engaging portion 93 and the engaged portion 84 are in an engaged state with each other when the lid portion 9 closes the opening 82 (specifically, the inward projection and the outward projection are overcome and locked) ) When the operating body 4 and the contact wall 91 on the front surface of the lid 9 are brought into contact with each other by the rearward urging of the projectile body 10, the engaged state is not released and the lid 9 is not opened. .

また、前記係合部９３と被係合部８４の構成以外にも、前記係合部９３が係合凸部よりなり、前記被係合部８４が係合凹部または係合孔部からなる構成でもよい。 In addition to the configuration of the engaging portion 93 and the engaged portion 84, the engaging portion 93 is an engaging convex portion, and the engaged portion 84 is an engaging concave portion or an engaging hole portion. But you can.

レフィル１のペン先が没入状態のとき、そのレフィル１の後端に有する操作体４の後端部は、蓋部９の前面に形成された当接壁部９１に衝止される。一方、レフィル１のペン先が突出状態のとき、そのレフィル１の後端に有する操作体４の後端部は、軸筒６の内壁に形成された係止壁部に係止される。 When the pen tip of the refill 1 is in an immersive state, the rear end portion of the operation body 4 provided at the rear end of the refill 1 is hit by an abutting wall portion 91 formed on the front surface of the lid portion 9. On the other hand, when the pen tip of the refill 1 is in a protruding state, the rear end portion of the operation body 4 at the rear end of the refill 1 is locked to a locking wall portion formed on the inner wall of the shaft tube 6.

ペン先没入状態にある多芯筆記具用レフィル１の後端に有する操作体４の前側突出部４４は、その操作体４の操作部４３を前方にスライド操作した際、先に突出状態にある他の多芯筆記具用レフィル１の後端に連結された操作体４の後側突出部４５と当接され、他の多芯筆記具用レフィル１のペン先突出状態が解除される。 The front protruding portion 44 of the operating body 4 at the rear end of the refill 1 for the multi-core writing instrument in the pen nib immersing state is in the protruding state when the operating portion 43 of the operating body 4 is slid forward. This is brought into contact with the rear projecting portion 45 of the operating body 4 connected to the rear end of the refill 1 for the multi-core writing instrument, and the pen tip projecting state of the other multi-core writing instrument refill 1 is released.

（弾発体支持部）
軸筒６の内壁（即ち後軸８の内壁）には、円筒状の弾発体支持部１１が設けられる。前記弾発体支持部１１は、多芯筆記具用レフィル１のインキ収容管３が挿通される複数（具体的には２個）の内孔１１１が軸方向に貫設されている。前記弾発体支持部１１の後面と、各々の操作体４の鍔部４７の前面との間には、弾発体１０が配置される。前記各々の弾発体１０の内部に多芯筆記具用レフィル１のインキ収容管３が遊挿されるとともに、各々の弾発体１０の前端は弾発体支持部１１の後面により係止され、各々の弾発体１０の後端は操作体４７の鍔部４７の前面に係止される。 (Projection support part)
A cylindrical projectile support 11 is provided on the inner wall of the shaft cylinder 6 (that is, the inner wall of the rear shaft 8). A plurality (specifically, two) of inner holes 111 through which the ink containing tube 3 of the refill 1 for a multi-core writing instrument is inserted are penetrated in the projectile support part 11 in the axial direction. The projectile 10 is disposed between the rear surface of the projectile support 11 and the front surface of the flange 47 of each operation body 4. The ink containing tube 3 of the refill 1 for a multi-core writing instrument 1 is loosely inserted into each of the bullets 10 and the front end of each bullet 10 is locked by the rear surface of the bullet support 11. The rear end of the elastic body 10 is locked to the front surface of the collar portion 47 of the operation body 47.

また、弾発体支持部１１の後面の各々の内孔１１１の周囲には、周状壁部よりなる保持部１１２が形成される。前記各々の保持部１１２の内面は、各々の弾発体１０の前端部外面が圧入保持される。それにより、各々の多芯筆記具用レフィル１を交換する際、軸筒６内から開口部８２を通して各々の弾発体１０が脱落することを防止できる。 A holding portion 112 made of a circumferential wall portion is formed around each inner hole 111 on the rear surface of the projectile support portion 11. The inner surface of each holding portion 112 is press-fitted and held at the outer surface of the front end portion of each bullet 10. Thereby, when each refill 1 for multi-core writing instruments is replaced, it is possible to prevent each of the projectile bodies 10 from dropping out of the shaft cylinder 6 through the opening 82.

前記各々の弾発体１０は、各々の操作体４（即ち各々の多芯筆記具用レフィル１）を、常時、後方に付勢している。前記各々の弾発体１０は、ペン先突出状態及びペン先没入状態のいずれにおいても圧縮状態（即ち多芯筆記具用レフィル１が後方に付勢された状態）にあり、それにより、各々の操作体４の前後のがたつきが防止される。 Each of the projectile bodies 10 always urges each operation body 4 (that is, each refill 1 for a multi-core writing instrument) backward. Each of the projectile bodies 10 is in a compressed state (that is, a state in which the refill 1 for a multi-core writing instrument is urged rearward) in both the pen tip protruding state and the pen tip immersing state. Shaking around the body 4 is prevented.

（レフィルの交換）
本実施の形態における多芯筆記具用レフィル（図1及び図２参照）の交換について説明する。多芯筆記具用レフィル１を交換する際、蓋部９が軸筒６の後端の開口部８２を閉鎖した状態から、蓋部９のヒンジ部９２と反対側の操作端部を後方に押圧し、係合部９３と被係合部８４との係合を解除し、蓋部９を後方に回動させ、軸筒６の後端の開口部８２を開口する（図６参照）。前記開口部８２を開口させると、前記開口部８２から各々の操作体４が、弾発体１０の後方付勢により後方外部に突出される。前記軸筒６２の後端の開口部８２が開口した状態（図６の状態）で、操作体４を取り出すことにより、多芯筆記具用レフィル１を、前記開口部８２を通して軸筒６内から取り出し、その後、互いに連結状態にある新たな多芯筆記具用レフィル１を、前記開口部８２を通して軸筒６内に挿入する。そして、蓋部９の当接壁部９１に各々の操作体４を当接させ、各々の操作体４を前方に押圧しながら蓋部９を前方に回動させ、その後、係合部９３と被係合部８４とを係合させ、開口部８２を閉鎖する。これにより、多芯筆記具用レフィル１の交換作業が終了する。 (Refill exchange)
The replacement of the refill for the multi-core writing instrument (see FIGS. 1 and 2) in the present embodiment will be described. When exchanging the refill 1 for the multi-core writing instrument, the lid 9 closes the opening 82 at the rear end of the barrel 6 and pushes the operation end opposite to the hinge 92 of the lid 9 backward. Then, the engagement between the engaging portion 93 and the engaged portion 84 is released, the lid portion 9 is rotated backward, and the opening 82 at the rear end of the shaft tube 6 is opened (see FIG. 6). When the opening 82 is opened, each operation body 4 is protruded from the opening 82 to the outside by the rear urging of the projectile 10. With the opening 82 at the rear end of the shaft cylinder 62 opened (the state shown in FIG. 6), the refill 1 for the multi-core writing instrument is taken out from the shaft cylinder 6 through the opening 82 by taking out the operating body 4. Thereafter, new refills 1 for a multi-core writing instrument that are connected to each other are inserted into the shaft tube 6 through the opening 82. Then, each operating body 4 is brought into contact with the abutting wall portion 91 of the lid portion 9, and the lid portion 9 is rotated forward while pressing each operating body 4 forward. The engaged portion 84 is engaged and the opening 82 is closed. Thereby, the exchange operation | work of the refill 1 for multi-core writing instruments is complete | finished.

本発明の多芯筆記具用レフィルの正面図である。It is a front view of the refill for multi-core writing instruments of this invention. 図１の右側面図である。It is a right view of FIG. 図１の多芯筆記具用レフィルを包装袋に収容した状態の正面図である。It is a front view of the state which accommodated the refill for multi-core writing instruments of FIG. 1 in the packaging bag. 図１の多芯筆記具用レフィルを包装袋に収容した状態の正面図である。It is a front view of the state which accommodated the refill for multi-core writing instruments of FIG. 1 in the packaging bag. 図１の多芯筆記具用レフィルを複数本収容した多芯筆記具の全ペン先没入状態（非筆記時）を示す縦断面図である。It is a longitudinal cross-sectional view which shows the all-pen-tips immersion state (at the time of non-writing) of the multi-core writing instrument which accommodated multiple refills for multi-core writing instruments of FIG. 図５の多芯筆記具の後端を開口した状態を示す側面図である。It is a side view which shows the state which opened the rear end of the multi-core writing instrument of FIG.

Explanation of symbols

１多芯筆記具用レフィル
２ボールペンチップ（ペン先）
２１被覆樹脂
２２ペン先保持部材
３インキ収容管
４操作体
４１大径部
４１ａ平面部
４２小径部
４３操作部
４４前側突出部
４５後側突出部
４６嵌入部
４７鍔部
５包装袋
５１吊下孔
５２着色部
６軸筒
７前軸
７１前端孔
８後軸
８１窓孔
８２開口部
８３クリップ
８４被係合部
９蓋部
９１当接壁部
９２ヒンジ部
９３係合部
１０弾発体
１１弾発体支持部
１１１内孔
１１２保持部 1 Refill for multi-core writing instrument 2 Ballpoint pen tip (pen nib)
21 coating resin 22 pen tip holding member 3 ink containing tube 4 operation body 41 large diameter portion 41a flat surface portion 42 small diameter portion 43 operation portion 44 front side protrusion portion 45 rear side protrusion portion 46 fitting portion 47 collar portion 5 packaging bag 51 suspension hole 52 colored portion 6 shaft cylinder 7 front shaft 71 front end hole 8 rear shaft 81 window hole 82 opening 83 clip 84 engaged portion 9 lid portion 91 abutting wall portion 92 hinge portion 93 engaging portion 10 projectile 11 elastic Body support part 111 Inner hole 112 Holding part

Claims

When used, a plurality of tubes are accommodated in the shaft cylinder. The operating body connected to the rear end of each is protruded from the side wall of the shaft cylinder, and the pen is projected and retracted from the front end of the shaft cylinder by sliding the operating body forward. A refill for a multi-core writing instrument, wherein the ball pen tip is held at the front end in a state before being accommodated in the shaft tube, the ball pen tip is fixed to the front end, and the ink is placed inside A refill for a multi-core writing instrument, comprising: a stored ink storage tube; and an operating body connected to a rear end of the ink storage tube and colored with an ink color in the ink storage tube.

The multifilament writing instrument refill according to claim 1, wherein the operating body includes a small diameter portion and a large diameter portion having a larger radial dimension than the small diameter portion.

The refill for a multi-core writing instrument according to claim 1 or 2, wherein the operation body includes a large-diameter portion having a larger radial dimension than the outer diameter of the ink containing tube.

The refill for a multi-core writing instrument according to claim 2 or 3, wherein the large-diameter portion has a plate shape having flat portions on both sides.

The refill for a multi-core writing instrument according to claim 2, 3 or 4, wherein the large-diameter portion is provided at a rear portion of the operating body.

6. The multi-core writing instrument according to claim 1, wherein the viewing area of the operating body is set to 10% or more of the viewing area of the ink containing tube in a state where the area of the operating body is viewed most greatly. Refill.

The refill for a multi-core writing instrument according to any one of claims 1 to 6, which is accommodated in a packaging bag made of a transparent material.

The refill for a multi-core writing instrument according to claim 7, wherein in the state accommodated in the packaging bag, the maximum visible area of the operation body is visible from the outside front of the packaging bag.

In the state where the operation body includes a large diameter portion having a larger radial dimension than the outer diameter of the ink storage tube, the large diameter portion has a flat surface on both sides, and is accommodated in the packaging bag, The refill for a multi-core writing instrument according to claim 7 or 8, wherein the flat portion of the large-diameter portion of the operating body is visible from the outside front of the packaging bag.

The refill for a multi-core writing instrument according to any one of claims 7 to 9, wherein the packaging bag is provided with a suspension hole at one end, and an operation body is disposed on the suspension hole side in a state of being accommodated in the packaging bag. .

The refill for a multi-core writing instrument according to any one of claims 7 to 9, wherein the packaging bag has a suspension hole at one end and a ballpoint pen tip is disposed on the suspension hole side in a state of being accommodated in the packaging bag. .

12. The packaging bag according to claim 7, wherein the packaging bag has a suspension hole at one end, and a colored portion colored in the color of the ink in the ink storage tube is provided on a surface of the packaging bag near the suspension hole. Refill for multi-core writing instruments.

The refill for a multi-core writing instrument according to any one of claims 1 to 12, wherein the ink storage tube is made of a transparent or translucent material, and the ink stored in the ink storage tube is a dye ink.

The refill for a multi-core writing instrument according to any one of claims 1 to 13, wherein a coating resin for preventing pen tip drying is fixed to a front end of the ball-point pen tip.