JP2019177639A - Retractable writing instrument - Google Patents

Retractable writing instrument Download PDF

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JP2019177639A
JP2019177639A JP2018069067A JP2018069067A JP2019177639A JP 2019177639 A JP2019177639 A JP 2019177639A JP 2018069067 A JP2018069067 A JP 2018069067A JP 2018069067 A JP2018069067 A JP 2018069067A JP 2019177639 A JP2019177639 A JP 2019177639A
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writing
tube
cap body
shaft cylinder
shaft
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大介 坂元
Daisuke Sakamoto
大介 坂元
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Pilot Corp
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Abstract

To provide a retractable writing instrument that can be easily in/out of a writing body without changing a shaft tube or an operation with both hands.SOLUTION: A cap body 5, a writing body disposed behind the cap body 5, and a bullet body disposed between the writing body and the cap body 5 are provided in a shaft tube 2. A push body 4 that comes into contact with the cap body 5 and the writing body is attached to a window portion 21a provided on a side surface of the shaft tube. The cap body 5 has a tube portion 51 through which the writing body is inserted, a plurality of clamping pieces 53 extending in front of the tube portion 51, and a tube 52 disposed between the clamping pieces 53 in front of the tube portion 51. A sliding surface is provided on an inner surface in front of the shaft tube 2, so that the clamping pieces 53 slide in such a manner as being tapered toward the front. The push body 4 or the cap body 5 is provided with a front slope formed so as to have a rear end on the window portion 21a side on the inner surface of the shaft tube 2 and a front end on the opposite side of the window portion 21a. The push body 4 or the writing body has a front end on the side of the window portion 21a on the inner surface of the shaft tube 2 and a rear end on the opposite side of the window portion 2.SELECTED DRAWING: Figure 4

Description

本発明は、軸筒内に筆記体を収容し、前記軸筒の開口より前記筆記体の筆記部を出没可能にした出没式筆記具に関する。   The present invention relates to a retractable writing instrument in which a writing body is accommodated in a shaft cylinder, and a writing portion of the writing body can be protruded and retracted from an opening of the shaft cylinder.

従来、軸筒内に収容した筆記体の筆記端を、軸筒に設けた操作体を操作することで、軸筒の開口より出没可能にした出没式筆記具はよく知られている。
例えば特許文献1(特開平11−70779号公報)には、軸筒後方のノック体のノック操作により、軸筒内に収容した筆記体(ボールペンレフィル)の筆記端を軸筒の開口より出没させる出没式筆記具が記載されている。また特許文献2(特開2007−283537号公報)には、前軸と後軸とを相対的に回動操作することにより、軸筒内に収容した筆記体(ボールペンレフィル)の筆記端を軸筒の開口より出没させる出没式筆記具が記載されている。
DESCRIPTION OF RELATED ART Conventionally, the retractable writing instrument which made the writing end of the writing body accommodated in the axial cylinder possible to protrude from the opening of the axial cylinder by operating the operating body provided in the axial cylinder is well known.
For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 11-70779), the writing end of a writing body (ball pen refill) housed in the shaft cylinder is caused to appear and disappear from the opening of the shaft cylinder by knocking the knocking body behind the shaft cylinder. A haunting writing instrument is described. In Patent Document 2 (Japanese Patent Laid-Open No. 2007-283537), the writing end of a writing body (ball pen refill) accommodated in the shaft cylinder is pivoted by relatively rotating the front shaft and the rear shaft. A retractable writing instrument that appears and disappears from the opening of the tube is described.

前記特許文献1や特許文献2に記載された出没式筆記具では、筆記端を突出させる際に一度繰り出しのための操作を行い、筆記端を没入させる際に再度没入のための操作を行う必要がある。
このように筆記体の突出や没入の際に、それぞれの操作が必要な出没式筆記具では、筆記目的で使用されるボールペンのように筆記具を連続して使用し続ける場合には、特に手間と感じることは少ないが、例えば目的部分に線を引く際に短時間だけ使用される蛍光マーカーのような筆記具、あるいはボールペンであっても、胸ポケットから筆記具を取り出して手帳に筆記を行う場合など、ごく短時間の筆記のために筆記具を使用したい場合には、その操作が手間に感じられることがある。
さらに、特許文献1のようなノック式の出没式筆記具では、軸筒の後方にあるノック体を操作して筆記体の出没を行うため、軸筒の前後を反転させるような持ち替えが必要となる。また、特許文献2のような回転式の出没式筆記具では、片手で前軸を把持し、残りの手で後軸を把持して軸線周りに相対回転させることで筆記体の出没操作を行うため、両手による操作が必要となる。このような軸筒の持ち替えや両手を必要とする操作は、前述の通り短時間だけ使用したい場合に特に煩わしさを感じることがある。
In the retractable writing instruments described in Patent Document 1 and Patent Document 2, it is necessary to perform an operation for feeding once when the writing end is protruded, and to perform an operation for immersion again when the writing end is immersed. is there.
In this way, with the retractable writing instruments that require each operation when projecting or immersing the cursive body, it feels particularly troublesome if the writing instrument is used continuously like a ballpoint pen used for writing purposes. For example, writing tools such as fluorescent markers that are used only for a short time when drawing a line on the target area, or even ballpoint pens, such as when taking out writing instruments from a breast pocket and writing in a notebook When you want to use a writing instrument for short-time writing, the operation may be time-consuming.
Furthermore, in the knock-type retractable writing instrument as disclosed in Patent Document 1, the knocked body located behind the shaft cylinder is operated to cause the writing body to appear and retract, so that it is necessary to change the position so that the front and rear of the shaft cylinder are reversed. . In addition, in a rotary type retractable writing instrument such as Patent Document 2, the front shaft is gripped with one hand, the rear shaft is gripped with the other hand, and the cursive operation is performed by relatively rotating around the axis. , Operation with both hands is required. Such a change of the shaft tube and an operation that requires both hands may be particularly troublesome when the user wants to use it for a short time as described above.

特開平11−70779号公報JP-A-11-70779 特開2007−283537号公報JP 2007-283537 A

本発明は、上記問題を鑑みて、軸筒の持ち替えや両手による操作を必要とせず、筆記体の出没操作が容易に行える出没式筆記具を得ることを目的とする。   In view of the above problems, an object of the present invention is to provide an in / out type writing instrument that can be easily operated in and out of a writing body without changing the shaft tube or operating with both hands.

本発明は、
「1.軸筒内に筆記体を収容し、前記軸筒の開口より前記筆記体の筆記端を出没可能にした出没式筆記具であって、
前記軸筒内に、キャップ体と、該キャップ体の後方に配した前記筆記体と、該筆記体と当該キャップ体との間に配した弾発体と、を備え、
前記軸筒の側面に設けた窓部に、前記キャップ体及び前記筆記体に当接する押動体を装着し、
前記キャップ体が、前記筆記体が挿通する筒部と、該筒部の前方に延設した複数の挟持片と、前記筒部の前方で前記挟持片間に配したチューブと、を有し、
前記軸筒前方の内面に、前記挟持片が摺動し前方へ向かって先窄む摺動面を設け、
前記押動体または前記キャップ体に、前記軸筒の内面における前記窓部側に後端を有し該窓部の反対側に前端を有するよう形成した前方斜面を設け、
前記押動体または前記筆記体に、前記軸筒の内面における前記窓部側に前端を有し該窓部の反対側に後端を有するよう形成した後方斜面を設け、
前記筆記端が前記キャップ体の内方に収容された状態においては、
前記弾発体が前記キャップ体を前方へ弾発することで、前記軸筒の摺動面により前記二つの挟持片が弾性変形しながら接近して前記チューブを潰すように挟持して該キャップ体の前方が閉塞され、
前記押動体を前記軸筒の軸径方向へ押動して前記筆記端を該軸筒の開口より突出させる際には、
前記弾発体を圧縮しながら、前記前方斜面で前記キャップ体を後退させると共に前記後方斜面で前記筆記体を前進させ、前記複数の挟持片が前記摺動面を摺動して該挟持片の弾性力で互いに離間しながら後退し、前記筆記端が前記軸筒の開口より突出されることを特徴とした出没式筆記具。
2.軸筒内に筆記体を収容し、前記軸筒の開口より前記筆記体の筆記端を出没可能にした出没式筆記具であって、
前記軸筒内に、キャップ体と、該キャップ体の後方に配した前記筆記体と、該筆記体を後方へ弾発する弾発体と、を備え、
前記軸筒の側面に設けた窓部に、前記キャップ体及び前記筆記体に当接する押動体を装着し、
前記キャップ体が、前記筆記体が挿通する筒部と、該筒部の前方に延設した複数の挟持片と、前記筒部の前方で前記挟持片間に配したチューブと、を有し、
前記軸筒前方の内面に、前記挟持片が摺動し後方へ向かって先窄む摺動面を設け、
前記押動体または前記筆記体に、前記軸筒の内面における窓部側に前端を有し該窓部の反対側に後端を有するよう形成した押動斜面を設け、
前記筆記端が前記キャップ体の内方に収容された状態においては、
前記弾発体が前記筆記体を後方へ弾発することで、前記筆記体に連結されたキャップ体が後退し、
軸筒の傾斜面により前記複数の挟持片が弾性変形しながら接近して前記チューブを潰すように挟持して該キャップ体の前方が閉塞され、
前記押動体を前記軸筒の軸径方向へ押動して前記筆記端を該軸筒の開口より突出させる際には、
前記弾発体を圧縮しながら、前記押動斜面で前記筆記体を前進させ、前記挟持片が前記摺動面を摺動して該挟持片の弾性力で互いに離間しながら前進し、
前記筆記端が前記軸筒の開口より突出されることを特徴とした出没式筆記具。」である。
The present invention
“1. A retractable writing instrument in which a cursive body is housed in a shaft cylinder, and a writing end of the cursive body is retractable from an opening of the shaft cylinder,
In the shaft tube, provided with a cap body, the writing body disposed behind the cap body, and a projectile body disposed between the writing body and the cap body,
Attach a pusher that abuts the cap body and the writing body to the window provided on the side surface of the shaft cylinder,
The cap body includes a cylindrical portion through which the writing body is inserted, a plurality of clamping pieces extending in front of the cylindrical portion, and a tube disposed between the clamping pieces in front of the cylindrical portion,
On the inner surface in front of the shaft tube, a sliding surface is provided in which the clamping piece slides and is tapered toward the front,
Provided on the pushing body or the cap body is a front slope formed so as to have a rear end on the window portion side on the inner surface of the shaft cylinder and a front end on the opposite side of the window portion;
The push body or the writing body is provided with a rear slope formed so as to have a front end on the window portion side on the inner surface of the shaft tube and a rear end on the opposite side of the window portion,
In the state where the writing end is accommodated inside the cap body,
When the projectile body ejects the cap body forward, the two clamping pieces approach each other while being elastically deformed by the sliding surface of the shaft tube so as to crush the tube, The front is blocked,
When pushing the pusher in the axial diameter direction of the shaft cylinder and projecting the writing end from the opening of the shaft cylinder,
While compressing the projectile body, the cap body is retracted on the front slope and the writing body is advanced on the rear slope, and the plurality of sandwiching pieces slide on the sliding surface to A retractable writing instrument, wherein the writing end is retreated while being separated from each other by an elastic force, and the writing end protrudes from an opening of the shaft cylinder.
2. A retractable writing instrument that accommodates a cursive body in a shaft cylinder, and allows the writing end of the cursive body to project from the opening of the shaft cylinder,
In the shaft tube, provided with a cap body, the writing body arranged behind the cap body, and a projectile body for projecting the writing body backward,
Attach a pusher that abuts the cap body and the writing body to the window provided on the side surface of the shaft cylinder,
The cap body includes a cylindrical portion through which the writing body is inserted, a plurality of clamping pieces extending in front of the cylindrical portion, and a tube disposed between the clamping pieces in front of the cylindrical portion,
Provided on the inner surface in front of the shaft cylinder a sliding surface on which the clamping piece slides and is tapered toward the rear,
The pushing body or the writing body is provided with a pushing slope formed so as to have a front end on the window portion side on the inner surface of the shaft cylinder and a rear end on the opposite side of the window portion,
In the state where the writing end is accommodated inside the cap body,
The bullet body repels the cursive body backward, and the cap body connected to the cursive body recedes,
The front end of the cap body is closed by sandwiching the plurality of sandwiching pieces while being elastically deformed by the inclined surface of the shaft cylinder so as to crush the tube,
When pushing the pusher in the axial diameter direction of the shaft cylinder and projecting the writing end from the opening of the shaft cylinder,
While compressing the projectile body, the writing body is advanced by the pushing slope, and the sandwiching piece slides on the sliding surface and advances while being separated from each other by the elastic force of the sandwiching piece,
The writing and writing type writing instrument, wherein the writing end protrudes from an opening of the shaft tube. Is.

本発明の出没式筆記具は、筆記体を没入させた状態においては、軸筒の内部で筆記体の筆記端を保護しながらキャップ体により気密性を確保することができると共に、軸筒前方の押動体を軸径方向へ押動することで筆記体を突出させ、押動体を押動する力を開放することで筆記端を没入させることができることから、軸筒の持ち替えや両手による操作を必要とせず、筆記体の出没操作を容易に行うことができる。   The retractable writing instrument according to the present invention can ensure airtightness by the cap body while protecting the writing end of the writing body inside the shaft tube while the writing body is immersed. By pushing the moving body in the axial direction, the writing body can be projected, and by releasing the force that pushes the pushing body, the writing end can be immersed. Therefore, it is possible to easily perform the appearance operation of the cursive.

押動体を軸筒の軸径方向へ押動することにより、筆記体の前進やキャップ体の後退を行うことから、キャップ体及び筆記体は、押動体の押圧力に対して軸径方向への移動を規制し、軸筒の軸心に沿った前後動ができるよう配設する。
キャップ体及び筆記体の軸径方向への移動を規制する場合には、キャップ体及び筆記体の一部を軸筒の内面における窓部と反対の内面に摺動するよう、キャップ体及び筆記体に脚部を設けるとよい。
By pushing the pushing body in the axial direction of the shaft cylinder, the writing body is moved forward and the cap body is moved backward, so that the cap body and the writing body are moved in the axial radial direction with respect to the pressing force of the pushing body. The movement is restricted and arranged so as to be able to move back and forth along the axis of the shaft cylinder.
When restricting the movement of the cap body and the writing body in the axial diameter direction, the cap body and the writing body are slid on the inner surface of the inner surface of the shaft cylinder opposite to the window portion when part of the cap body and the writing body is slid. It is good to provide a leg part.

第1の発明における前方斜面及び後方斜面は、それぞれキャップ体及び筆記体に設けてもよく、両方を押動体に設けてもよく、あるいは、キャップ体に前方斜面を押動体に後方斜面を、その組み合わせの反対で押動体に前方斜面を筆記体に後方斜面を設けてもよく、前方斜面及び後方斜面を設ける部材は限定されない。いずれの場合も前方斜面及び後方斜面に対峙する部材側には、該前方斜面及び後方斜面に当接して摺動する当接部を突設させ、キャップ体及び筆記体の前後動が滑らかになるようにすることが好ましい。
筆記体に設ける後方斜面または当接部は、筆記体の側面に対して直接形成してもよく、あるいは外周を被覆する別部材のスライダーを筆記体に装着して、そのスライダーの側面に形成してもよい。別部材でスライダーを設ける構造とした場合には、例えばボールペンレフィルやマーカーなど内部にインキを収容した筆記体を使用する際、筆記によりインキが消費され筆記体の交換が必要となった時に、スライダーはそのまま使用し、筆記体だけを交換することが可能となる。
The front slope and the back slope in the first invention may be provided on the cap body and the writing body, respectively, or both may be provided on the push body, or the front slope on the cap body and the back slope on the push body, On the opposite side of the combination, the pusher may be provided with a front slope and the cursive body with a rear slope, and the member provided with the front slope and the rear slope is not limited. In any case, on the member side facing the front slope and the back slope, a contact portion that abuts and slides against the front slope and the back slope is projected, so that the back and forth movement of the cap body and the writing body becomes smooth. It is preferable to do so.
The rear slope or contact portion provided on the cursive body may be formed directly on the side surface of the cursive body, or may be formed on the side surface of the slider by attaching another slider that covers the outer periphery to the cursive body. May be. When a slider is provided as a separate member, for example, when using a cursive body containing ink inside, such as a ballpoint refill or marker, the slider is used when the ink is consumed and the cursive body needs to be replaced. Can be used as is, and only cursive letters can be exchanged.

また、第1の発明における軸筒に対する押動体の装着方法は限定されるものではないが、押動体を押動した際に、前方斜面及び後方斜面でキャップ体及び筆記体の両方を一緒に摺動させることから、押動体が軸心に対して垂直方向に移動できるように、軸筒の側面に設けた窓部に対して押動体を遊嵌する構造が好ましい。   In addition, although the method of attaching the pusher to the shaft cylinder in the first invention is not limited, when the pusher is pushed, both the cap body and the writing body are slid together on the front slope and the back slope. Therefore, a structure in which the pusher is loosely fitted to the window provided on the side surface of the shaft cylinder is preferable so that the pusher can move in the direction perpendicular to the axis.

第2の発明における押動斜面は、前記第1の発明と同様に押動体または筆記体に設けることができ、押動斜面に対峙する部材側には、押動斜面に当接して摺動する当接部を突設させ、筆記体の前後動が滑らかになるようにすることが好ましい。
筆記体に設ける押動斜面または当接部は、筆記体の側面に対して直接形成してもよく、あるいは外周を被覆する別部材のスライダーを筆記体に装着して、そのスライダーの側面に形成してもよい。別部材でスライダーを設ける構造とした場合には、例えばボールペンレフィルやマーカーなど内部にインキを収容した筆記体を使用する際、筆記によりインキが消費され筆記体の交換が必要となった時に、スライダーはそのまま使用し、筆記体だけを交換することが可能となる。
The pushing slope in the second invention can be provided on the pushing body or the writing body as in the first invention, and the member facing the pushing slope slides in contact with the pushing slope. It is preferable to project the abutting portion so that the longitudinal movement of the writing body is smooth.
The push slope or contact portion provided on the cursive body may be formed directly on the side surface of the cursive body, or another slider that covers the outer periphery is attached to the cursive body and formed on the side surface of the slider. May be. When a slider is provided as a separate member, for example, when using a cursive body containing ink inside, such as a ballpoint refill or marker, the slider is used when the ink is consumed and the cursive body needs to be replaced. Can be used as is, and only cursive letters can be exchanged.

また、第2の発明における軸筒に対する押動体の装着方法は限定されるものではないが、押動体を押動した際に、押動体で筆記体を押動させることから、押動体を回転運動させ、その回転運動の中で筆記体を前進させる構造が好適であり、一例として押動体の前方または後方を軸筒の開口部の前方縁部または後方縁部に係止させ、回動可能に装着し、押動体への押圧により該押動体が回転運動をしながら筆記体を前進させる構造がある。   Further, the method of mounting the pusher on the shaft cylinder in the second invention is not limited, but when the pusher is pushed, the writing body is pushed by the pusher, so that the pusher is rotated. It is preferable to have a structure that advances the writing body in the rotational movement, and as an example, the front or rear of the pusher is locked to the front edge or rear edge of the opening of the shaft tube so that it can rotate. There is a structure in which a writing body is advanced while the pusher is rotating and moving by being pressed.

筆記体は、ボールペンレフィル、シャープペンシルユニット、マーカー、万年筆など筆記端を前端に備えたものであればよい。
軸筒の外形形状は限定されないが、横断面において四角形状にすることで、軸筒に対する押動体やキャップ体及び筆記体の配設が行い易くなる。
押動体の材質は特に限定されるものではないが、操作性を鑑みて、キャップ体や筆記体との滑り性を考慮する場合にはポリアセタール樹脂(POM樹脂)やポリブチレンテレフタラート樹脂(PBT樹脂)、フッ素樹脂が好ましく、外観や強度を重視するのであればポリカーボネート樹脂(PC樹脂)やアクリル樹脂、アクリロニトリル−ブタジエン−スチレン共重合樹脂(ABS樹脂)などが適している。
The cursive body only needs to have a writing end such as a ballpoint refill, a mechanical pencil unit, a marker, and a fountain pen at the front end.
Although the outer shape of the shaft cylinder is not limited, the push body, the cap body, and the writing body can be easily disposed on the shaft cylinder by forming a square shape in the cross section.
The material of the pusher is not particularly limited, but in consideration of operability, when considering slipperiness with a cap or a writing body, polyacetal resin (POM resin) or polybutylene terephthalate resin (PBT resin) ), A fluororesin is preferable, and polycarbonate resin (PC resin), acrylic resin, acrylonitrile-butadiene-styrene copolymer resin (ABS resin) and the like are suitable if the appearance and strength are important.

キャップ体に設ける複数の挟持片は、筒部と一体で形成しても別体で形成してもよいが、可撓性を有した材質で成形する必要がある。具体的には、ポリアセタール樹脂(POM樹脂)やポリブチレンテレフタラート樹脂(PBT樹脂)、フッ素樹脂が好ましく、外観や強度を重視するのであればポリカーボネート樹脂(PC樹脂)やアクリル樹脂、アクリロニトリル−ブタジエン−スチレン共重合樹脂(ABS樹脂)などが適している。
挟持片は、軸心に対して略並行に筒部から延びるよう形成し、摺動面を摺動することで互いが近接するよう弾性変形が行われる。また、複数の挟持片の数に限定はないが、効率よくチューブを挟持させることを考えると二つで設定した方がよい。
尚、挟持片の先端部に外方に突出する外方突部を形成することにより、キャップ体が前後動する際には、挟持片に形成した外方突部のみを軸筒の傾斜面に摺動させ、接触抵抗を減少することで滑らかに作動させることが可能となる。また、挟持片の先端部に内方に突出する内方突部を形成することにより、挟持片がチューブを挟持する際に、内方突部のみで力が一点に掛かるように挟持してチューブを潰れ易くすることができる。
チューブを挟持する挟持片は、少なくともチューブと接触する部分を、チューブが潰れた時の巾と同等かそれ以上の巾で形成して、チューブの全幅を圧縮して密閉できるようにするとよい。
The plurality of sandwiching pieces provided on the cap body may be formed integrally with the cylindrical portion or separately, but it is necessary to mold the material with flexibility. Specifically, polyacetal resin (POM resin), polybutylene terephthalate resin (PBT resin), and fluorine resin are preferable. If importance is placed on appearance and strength, polycarbonate resin (PC resin), acrylic resin, acrylonitrile-butadiene- Styrene copolymer resin (ABS resin) is suitable.
The sandwiching pieces are formed so as to extend from the cylindrical portion substantially in parallel to the shaft center, and are elastically deformed so as to come close to each other by sliding on the sliding surface. Moreover, although there is no limitation in the number of several clamping pieces, it is better to set by two when considering holding a tube efficiently.
In addition, when the cap body moves back and forth by forming an outward projection protruding outward at the tip of the sandwiching piece, only the outward projection formed on the sandwiching piece becomes an inclined surface of the shaft cylinder. It is possible to operate smoothly by sliding and reducing the contact resistance. In addition, by forming an inward protrusion that protrudes inwardly at the tip of the sandwiching piece, when the sandwiching piece grips the tube, the tube is sandwiched so that the force is applied to only one point by the inner protrusion. Can be easily crushed.
The sandwiching piece for sandwiching the tube may be formed so that at least a portion in contact with the tube is formed with a width equal to or greater than the width when the tube is crushed so that the entire width of the tube can be compressed and sealed.

キャップ体に設けるチューブは弾性変形可能なものとし、弾性変形のしやすさは材質や肉厚や直径などで調整することができる。チューブの材質は特に制限はされないが、例えば、ポリテトラフルオロエチレン樹脂(PTFE)、ポリクロロトリフルオロエチレン樹脂(PCTFE)、ポリエチレン樹脂(PE)、ポリプロピレン樹脂(PP)、エチレン・ビニルアルコール共重合樹脂(EVOH)等が好適な材質として挙げられ、その構造は単層でも積層でもよく、積層の場合、ポリテトラフルオロエチレン樹脂(PTFE)とエラストマーとの組み合わせや、ポリエチレン樹脂(PE)やエチレン・ビニルアルコール共重合樹脂(EVOH)との組み合わせが弾性力が高くなり好適である。
また、チューブの外径や肉厚などの形状や寸法については特に制限されないが、チューブの内径寸法は、筆記端がチューブ内を挿通できる寸法にする必要がある。また、チューブの肉厚は、0.2mm〜1.5mmの範囲で設定することで適度な弾性力が得られ、挟持片がチューブを挟持してキャップ体の前方を閉塞しやすいものとなり、またチューブが挟持片で挟持された状態から解放された際には弾性力でチューブが元の状態に戻りやすいものとなる。
The tube provided on the cap body can be elastically deformed, and the ease of elastic deformation can be adjusted by the material, thickness, diameter, and the like. The material of the tube is not particularly limited. For example, polytetrafluoroethylene resin (PTFE), polychlorotrifluoroethylene resin (PCTFE), polyethylene resin (PE), polypropylene resin (PP), ethylene / vinyl alcohol copolymer resin (EVOH) is a suitable material, and the structure may be a single layer or a laminate. In the case of a laminate, a combination of polytetrafluoroethylene resin (PTFE) and an elastomer, polyethylene resin (PE) or ethylene vinyl A combination with an alcohol copolymer resin (EVOH) is preferable because of its high elastic force.
The shape and dimensions such as the outer diameter and thickness of the tube are not particularly limited, but the inner diameter dimension of the tube needs to be a dimension that allows the writing end to pass through the tube. In addition, the tube thickness can be set within a range of 0.2 mm to 1.5 mm, so that an appropriate elastic force can be obtained, and the holding piece can easily hold the tube and block the front of the cap body. When the tube is released from the state of being sandwiched by the sandwiching pieces, the tube is easily returned to the original state by the elastic force.

さらに、キャップ体の後方内面にOリングなどの弾性体を固設して筆記体の外面に接触させる構造とすることにより、該Oリングと前記チューブとでキャップ体の前後を気密状態にすることができ、筆記体がボールペンレフィル、マーカー、万年筆などインキを用いたものである場合にも、乾燥を防止することが可能となる。   Furthermore, an elastic body such as an O-ring is fixed on the rear inner surface of the cap body so as to be in contact with the outer surface of the writing body, whereby the front and rear of the cap body are made airtight with the O-ring and the tube. It is possible to prevent drying even when the cursive is an ink such as a ballpoint pen refill, a marker, or a fountain pen.

また、蛍光マーカーなど筆記体が板状の筆記端を有したマーカーの場合には、筆記端の両側に形成された平面部が押動体の移動方向に対し直交する方向に平面を有することにより、押動体を親指で押動した際に、その親指と同じ位置に筆記端の平面が位置することから、その結果、自然とマーカーで線を引く際の筆記端の向き(筆跡が巾広くなる向き)で書き始めることが可能となり利便性が向上する。   In addition, in the case of a marker having a plate-like writing end, such as a fluorescent marker, the plane portion formed on both sides of the writing end has a plane in a direction perpendicular to the moving direction of the pusher, When the pusher is pushed with the thumb, the plane of the writing end is positioned at the same position as the thumb. As a result, the direction of the writing end when drawing the line with the marker (the direction in which the handwriting becomes wider) ), It becomes possible to start writing, and convenience is improved.

本発明の出没式筆記具によれば、筆記体を没入させた状態においては、軸筒の内部で筆記体の筆記端を保護しながらキャップ体で気密性を確保することができると共に、軸筒前方の押動体を軸径方向へ押動することで筆記体を突出させ、押動体を押動する力を開放することで筆記体を没入させることができることから、軸筒の持ち替えや両手による操作を必要とせず、筆記体の出没操作を容易に行うことができる出没式筆記具を得ることが可能となる。   According to the retractable writing instrument of the present invention, in the state in which the writing body is immersed, the cap body can ensure airtightness while protecting the writing end of the writing body inside the shaft tube, and the front of the shaft tube By pushing the pusher in the axial direction, the cursive body can be projected, and by releasing the force that pushes the pusher, the cursive body can be immersed. It is possible to obtain an in / out type writing instrument that can easily perform the in / out operation of the cursive body without being required.

第一実施形態の出没式筆記具の平面図である。It is a top view of the retractable writing instrument of 1st embodiment. 第一実施形態の出没式筆記具の側面図である。It is a side view of the retractable writing instrument of 1st embodiment. 図1のA−A線断面図である。It is the sectional view on the AA line of FIG. 第一実施形態の出没式筆記具の要部拡大一部断面図である。It is a principal part expanded partial sectional view of the retractable writing instrument of 1st embodiment. 第一実施形態のキャップ体を取り外した状態の斜視図である。It is a perspective view of the state where the cap body of a first embodiment was removed. 第一実施形態の出没式筆記具の作動状態を時系列的に示した図である。It is the figure which showed the operation state of the retractable writing instrument of 1st embodiment in time series. 第一実施形態の出没式筆記具の変形例である。It is a modification of the retractable writing instrument of 1st embodiment. 第二実施形態の出没式筆記具の平面図である。It is a top view of the retractable writing instrument of 2nd embodiment. 第二実施形態の出没式筆記具の側面図である。It is a side view of the retractable writing instrument of 2nd embodiment. 図8のB−B線断面図である。It is the BB sectional drawing of FIG. 第二実施形態の出没式筆記具の要部拡大一部断面図である。It is a principal part expanded partial sectional view of the retractable writing instrument of 2nd embodiment. 第二実施形態のキャップ体を取り外した状態の斜視図である。It is a perspective view in the state where a cap body of a second embodiment was removed. 第二実施形態の出没式筆記具の作動状態を時系列的に示した図である。It is the figure which showed the operation state of the retractable writing instrument of 2nd embodiment in time series.

以下に添付図面を参照して本実施形態の出没式筆記具を詳細に説明する。本実施形態の説明では筆記端がある側を前方と表現し、その反対側を後方と表現する。また図における上下方向を軸径方向と表現する。   In the following, the retractable writing instrument of the present embodiment will be described in detail with reference to the accompanying drawings. In the description of the present embodiment, the side with the writing end is expressed as the front, and the opposite side is expressed as the rear. The vertical direction in the figure is expressed as the axial direction.

図1から図6を用いて第一実施形態の出没式筆記具について説明を行う。
図1は、第一実施形態の出没式筆記具の平面図である。図2は、第一実施形態の出没式筆記具の側面図である。図3は、図1のA−A線断面図である。図4は、第一実施形態の出没式筆記具の要部拡大一部断面図である。図5は、第一実施形態のキャップ体を取り外した状態の斜視図である。図6は、第一実施形態の出没式筆記具の作動状態を時系列的に示した図である。
The retractable writing instrument of the first embodiment will be described with reference to FIGS.
FIG. 1 is a plan view of the retractable writing instrument according to the first embodiment. FIG. 2 is a side view of the retractable writing instrument according to the first embodiment. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is an enlarged partial cross-sectional view of a main part of the retractable writing instrument according to the first embodiment. FIG. 5 is a perspective view of the first embodiment with the cap body removed. FIG. 6 is a diagram showing the operating state of the retractable writing instrument of the first embodiment in time series.

本実施の形態の出没式筆記具1は、軸筒2と、該軸筒2内に収容される筆記体3と、軸筒2の外面より軸径方向外方へ突出する押動部4aを備え且つ該軸筒2内に一部が収容される平面視が長方形状の押動体4とを備え、該押動体4を軸径方向へ押動及び押動する力を解放することにより前記筆記体3のペン先31を軸筒2の前端孔2aより出没自在にさせる出没式筆記具である。   The retractable writing instrument 1 according to the present embodiment includes a shaft tube 2, a writing body 3 accommodated in the shaft tube 2, and a pushing portion 4 a that protrudes outward in the axial radial direction from the outer surface of the shaft tube 2. Further, a pressing body 4 having a rectangular shape in plan view, a part of which is accommodated in the shaft cylinder 2, is provided, and the writing body is released by releasing the force that pushes and pushes the pressing body 4 in the axial radial direction. 3 is a retractable writing instrument that allows the 3 nib 31 to be retractable from the front end hole 2a of the shaft tube 2.

前記筆記体3は、繊維を収束させて形成したペン先31が前端開口部に圧入固着されたインキ収容管32と、インキ収容管32の後方を被覆する尾冠33と、前記インキ収容管32内の繊維束に充填された蛍光のインキ34とを備える。
ペン先31は筆記端31aをインキ収容管32から露出させ、軸部31bをインキ収容管32の細径部32aに挿着してある。
The writing body 3 includes an ink storage tube 32 in which a pen tip 31 formed by converging fibers is press-fitted and fixed to a front end opening, a tail cap 33 covering the back of the ink storage tube 32, and the ink storage tube 32. And the fluorescent ink 34 filled in the inner fiber bundle.
The pen tip 31 has the writing end 31 a exposed from the ink storage tube 32, and the shaft portion 31 b is inserted into the small diameter portion 32 a of the ink storage tube 32.

前記押動体4は、軸筒2の側面(図面における上面)に設けた長方形状の窓部21aに挿着され、押動体4が軸心に対して垂直に移動できるように窓部21aに対して遊嵌される。また、押動体4は、両側壁4bの前後に設けた突部4cにより、押動体4が窓部21aから外れないようにしてある。
前記押動体4は、両側壁4bに、窓部21a側に後端を有し該窓部21aの反対側に前端を有する前方斜面41が前方に形成され、窓部21a側に前端を有し該窓部21aの反対側に後端を有する後方斜面42が後方に形成されている。
The pusher 4 is inserted into a rectangular window portion 21a provided on the side surface (upper surface in the drawing) of the shaft cylinder 2, and the pusher 4 can move vertically with respect to the shaft center with respect to the window portion 21a. Are loosely fitted. Further, the pusher 4 is configured so that the pusher 4 is not detached from the window portion 21a by the protrusions 4c provided on the front and rear sides of the side walls 4b.
The pusher 4 has a front slope 41 formed on both side walls 4b with a rear end on the window 21a side and a front end on the opposite side of the window 21a, and has a front end on the window 21a side. A rear slope 42 having a rear end is formed on the opposite side of the window portion 21a.

前記軸筒2の内部前方には、前記ペン先31が挿通するキャップ体5が配設されている。
キャップ体5は、前記筆記体のペン先31が挿通する筒部51と、筒部51の前方部51aを挿着させたチューブ52とを有する。筒部51の前方には上下に配した二つの挟持片53を延設してある。挟持片53の前端部には、外方に突出する外方突部53aと、内方に突出する内方突部53bとを形成してある(図5参照)。
キャップ体5の筒部51の内方にはOリング54が固設されており(図3参照)、筆記体3の外周面にOリング54が接することでキャップ体5の後方が密閉状態となるようにしてある。
A cap body 5 through which the pen tip 31 is inserted is disposed in front of the shaft cylinder 2.
The cap body 5 includes a tube portion 51 through which the pen point 31 of the writing body is inserted, and a tube 52 into which a front portion 51a of the tube portion 51 is inserted. Two clamping pieces 53 arranged vertically are extended in front of the cylindrical portion 51. An outer protrusion 53a that protrudes outward and an inward protrusion 53b that protrudes inward are formed at the front end of the sandwiching piece 53 (see FIG. 5).
An O-ring 54 is fixed inside the cylindrical portion 51 of the cap body 5 (see FIG. 3), and the O-ring 54 comes into contact with the outer peripheral surface of the writing body 3 so that the rear of the cap body 5 is in a sealed state. It is supposed to be.

キャップ体5の側面には前記前方斜面41に当接する当接部5tを突設し、筆記体3の側面には前記後方斜面42に当接する当接部3tを突設してある。キャップ体5の下方に脚部55を設け、筆記体3の下方に脚部35を設け、各脚部が軸筒2の窓部21aと反対の内面に摺動するようにしてある。   An abutting portion 5t that abuts against the front slope 41 protrudes from the side surface of the cap body 5, and an abutting portion 3t that abuts against the rear slope 42 projects from the side surface of the writing body 3. Leg portions 55 are provided below the cap body 5, and leg portions 35 are provided below the writing body 3, so that each leg portion slides on the inner surface opposite to the window portion 21 a of the shaft tube 2.

キャップ体5と筆記体3との間にはコイルスプリング6が配設されており、常時、キャップ体5と筆記体3とが離間する前後方向へ弾発力が働くようにしてある。コイルスプリング6によるキャップ体5の前進は、押動体4の前方斜面41にキャップ体5の当接部5tが当接することで規制され、コイルスプリング6による筆記体3の後退は、押動体4の後方斜面42に筆記体3の当接部3tが当接することで規制される。   A coil spring 6 is disposed between the cap body 5 and the writing body 3 so that an elastic force always acts in the front-rear direction in which the cap body 5 and the writing body 3 are separated from each other. The forward movement of the cap body 5 by the coil spring 6 is regulated by the contact portion 5t of the cap body 5 coming into contact with the front inclined surface 41 of the push body 4, and the retraction of the writing body 3 by the coil spring 6 is performed by the push body 4. It is regulated by the contact portion 3t of the writing body 3 coming into contact with the rear slope 42.

図4に示す通り本実施形態では、軸筒2の前方内面に前方へ向かって先窄む摺動面21bを設け、前記挟持片53の外方突部53aが摺動するようにしてある。
本実施形態の出没式筆記具1は、筆記体3が軸筒2内に没入した状態で、筆記体3の後端3aが軸筒2の後端内面2bに接することで、コイルスプリング6による弾発力はキャップ体5を前進させる弾発力として働き、前方へ向かって先窄む摺動面21bにより二つの挟持片53が互いに近接するよう内方へ撓んだ状態に弾性変形し、挟持片53の内方突部53bによりチューブ52の前方部が圧縮されるよう弾性変形することで、キャップ体5の前方が閉塞され、キャップ体5の内部が気密状態となり、インキ34の乾燥が防止され、筆記端31aが保護される。
As shown in FIG. 4, in this embodiment, a sliding surface 21 b that is tapered forward is provided on the front inner surface of the shaft cylinder 2, and the outer protrusion 53 a of the clamping piece 53 slides.
The retractable writing instrument 1 according to the present embodiment is configured such that the rear end 3 a of the writing body 3 is in contact with the inner surface 2 b of the rear end of the shaft cylinder 2 in a state where the writing body 3 is immersed in the shaft cylinder 2. The generating force acts as a resilient force for moving the cap body 5 forward, and elastically deforms into a state where the two holding pieces 53 are bent inward so as to be close to each other by the sliding surface 21b tapered forward. The front portion of the tube 52 is elastically deformed by the inward protruding portion 53b of the piece 53 so that the front portion of the cap body 5 is closed, the inside of the cap body 5 is airtight, and drying of the ink 34 is prevented. The writing end 31a is protected.

次に、図6を用いて本実施形態の出没式筆記具を作動させる状態の説明を行う。
図6は、出没式筆記具の作動状態を一部断面化して側面から見た図であり時系列的に示した図である。
図6Aは、図1から図4に示された出没式筆記具1の状態であり軸筒2に筆記体3が没入した状態である。
図6Bは、図6Aの状態から押動体4の押動部4aを軸筒2の軸径方向(図の下方)へ少し押動した状態の図である。この状態で押動体4の前方斜面41と後方斜面42は軸筒2の中心線側へ移動し、前方斜面41と後方斜面42とで摺動された当接部3tと当接部5tとが少し近づく。
図6Cは、図6Bの状態から押動体4の押動部4aを軸筒2の軸径方向へさらに押動した状態の図である。この状態で押動体4の前方斜面41と後方斜面42の下端が軸筒2の中心線近傍まで移動し、前方斜面41と後方斜面42とで摺動された当接部3tと当接部5tとがさらに近づく。この際、当接部5tに従動するキャップ体5の後退により二つの挟持片53も後退し、摺動面21bを摺動して撓んだ状態から解放され、チューブ52もその弾性力により挟持片53で圧縮された状態から図5に示した元の状態へ復元して開放される。また、当接部3tに従動する筆記体3の前進により筆記端31aも前進するが、その際、チューブ52が同時に挟持片53から解放されて復元するようにしたことで、筆記端31aがチューブ52に触れることなく前進される。これによりチューブ52の開口部52aのインキによる汚損が防止され、またペン先31の損傷を防止することもでき、さらにペン先31が他部材に触れないことから抵抗が生じ難く、ペン先31の突出動作を滑らかに行うことができる。
図6Dは、図6Cの状態から押動体4の押動部4aを軸筒2の軸径方向へまたさらに押動した状態の図である。この状態で押動体4の前方斜面41と後方斜面42の下端が軸筒2の中心線を越えて下方に移動し、前方斜面41と後方斜面42とで摺動された当接部3tと当接部5tとがまたさらに近づき、前進した筆記体3の筆記端31aが軸筒2の前端孔2aから少し突出する。
図6Eは、図6Dの状態から押動体4の押動部4aを軸筒2の軸径方向へ完全に押動した状態の図である。この状態で押動体4の押動部4aは軸筒2の上面と一致し、押動体4の前方斜面41と後方斜面42の下端が軸筒2の内面における窓部21aの反対側まで寄り、前方斜面41と後方斜面42とで摺動された当接部3tと当接部5tはコイルスプリング6が完全圧縮されるまで近づき、前進した筆記体3の筆記端31aが軸筒2の前端孔2aから完全に突出して筆記可能状態となる。
Next, the state in which the retractable writing instrument of this embodiment is operated will be described with reference to FIG.
FIG. 6 is a diagram showing a partial section of the operating state of the retractable writing instrument as seen from the side, and shows the time series.
FIG. 6A shows the state of the retractable writing instrument 1 shown in FIGS. 1 to 4, in which the writing body 3 is immersed in the shaft cylinder 2.
6B is a diagram showing a state where the pushing portion 4a of the pushing body 4 is slightly pushed in the axial direction (downward in the drawing) of the shaft cylinder 2 from the state shown in FIG. 6A. In this state, the front slope 41 and the back slope 42 of the pusher 4 move to the center line side of the shaft cylinder 2, and the contact portion 3t and the contact portion 5t slid between the front slope 41 and the back slope 42 are formed. A little closer.
6C is a diagram showing a state in which the pushing portion 4a of the pushing body 4 is further pushed in the axial direction of the shaft tube 2 from the state shown in FIG. 6B. In this state, the lower end of the front slope 41 and the rear slope 42 of the pusher 4 moves to the vicinity of the center line of the shaft cylinder 2, and the contact part 3t and the contact part 5t slid between the front slope 41 and the rear slope 42. And get closer. At this time, the two clamping pieces 53 are also retracted by the retraction of the cap body 5 driven by the contact portion 5t, and are released from the state of sliding and sliding on the sliding surface 21b, and the tube 52 is also sandwiched by its elastic force. The state compressed by the piece 53 is restored to the original state shown in FIG. Further, the writing end 31a is also moved forward by the advance of the writing body 3 driven by the contact portion 3t. At that time, the tube 52 is simultaneously released from the clamping piece 53 so that the writing end 31a is restored. Advances without touching 52. This prevents the opening 52a of the tube 52 from being soiled by ink, can also prevent the pen tip 31 from being damaged, and since the pen tip 31 does not touch other members, resistance is unlikely to occur. The protruding operation can be performed smoothly.
6D is a diagram showing a state in which the pushing portion 4a of the pushing body 4 is further pushed in the axial radial direction of the shaft tube 2 from the state shown in FIG. 6C. In this state, the lower end of the front slope 41 and the rear slope 42 of the pusher 4 moves downward beyond the center line of the shaft cylinder 2, and the contact portion 3 t slid between the front slope 41 and the rear slope 42 and the contact portion 3 t The contact portion 5t is further approached, and the writing end 31a of the advanced writing body 3 projects slightly from the front end hole 2a of the shaft tube 2.
6E is a diagram showing a state in which the pushing portion 4a of the pushing body 4 is completely pushed in the axial radial direction of the shaft cylinder 2 from the state shown in FIG. 6D. In this state, the pushing portion 4a of the pushing body 4 coincides with the upper surface of the shaft cylinder 2, and the lower ends of the front slope 41 and the rear slope 42 of the pushing body 4 are shifted to the opposite side of the window portion 21a on the inner surface of the shaft cylinder 2, The abutting portion 3t and the abutting portion 5t slid on the front slope 41 and the rear slope 42 approach each other until the coil spring 6 is completely compressed, and the writing end 31a of the writing body 3 that has moved forward is the front end hole of the shaft tube 2. It protrudes completely from 2a and is ready for writing.

図6Eで示した筆記端31aを突出させた状態での筆記時においては、筆圧の反力が押動体4を軸径方向の反対側(図面上方)へ戻そうとする力として働くが、押動体4を押動する力の向きと筆記時に軸筒2を把持する力の向きとが同じであることから、結果、筆記端31aを突出状態で維持させるロック機構がなくとも、筆記端31aを突出させた状態を維持して筆記を行うことができる。   At the time of writing with the writing end 31a shown in FIG. 6E protruding, the reaction force of the writing pressure works as a force to return the pusher 4 to the opposite side (upward in the drawing) of the axial diameter direction. Since the direction of the force for pushing the pusher 4 is the same as the direction of the force for gripping the shaft cylinder 2 at the time of writing, as a result, even if there is no lock mechanism for maintaining the writing end 31a in the protruding state, the writing end 31a It is possible to perform writing while maintaining the protruding state.

図6Eの状態で押動体4を押動する力を開放することにより、図6Eから図6Aの状態へ逆に作動しながら筆記端31aが軸筒2内に没入し、再度キャップ体5で気密状態が保持され、インキ34の乾燥が防止され、筆記端31aが保護される。
尚、筆記端31aが没入する際にも、筆記端31aがキャップ体のチューブ52に触れることなく没入し、次いで挟持片53でチューブ52が閉じられるようにしてあり、筆記端31aの突出時と同様に、チューブ52の開口部52aのインキによる汚損が防止され、またペン先31の損傷を防止することもでき、ペン先31が他部材に触れないことから抵抗が生じ難く、ペン先31の没入動作を滑らかに行うことができる。
また、本実施形態では、キャップ体5及び筆記体3の軸径方向への移動を規制するために、キャップ体5の下方に脚部55を設け、筆記体3の下方に脚部35を設け、軸筒2の窓部21aと反対の内面に摺動させる構造とした。
By releasing the force that pushes the pusher 4 in the state of FIG. 6E, the writing end 31a is immersed in the shaft cylinder 2 while operating in reverse from the state of FIG. 6E to the state of FIG. The state is maintained, the drying of the ink 34 is prevented, and the writing end 31a is protected.
When the writing end 31a is immersed, the writing end 31a is immersed without touching the tube 52 of the cap body, and the tube 52 is then closed by the sandwiching piece 53, and when the writing end 31a protrudes, Similarly, contamination of the opening 52a of the tube 52 by ink can be prevented, and the pen tip 31 can be prevented from being damaged. Since the pen tip 31 does not touch other members, resistance hardly occurs. The immersion operation can be performed smoothly.
Further, in the present embodiment, in order to restrict movement of the cap body 5 and the writing body 3 in the axial diameter direction, a leg portion 55 is provided below the cap body 5 and a leg portion 35 is provided below the writing body 3. The shaft cylinder 2 is configured to slide on the inner surface opposite to the window portion 21a.

本実施形態の出没式筆記具1は、押動体4をポリアセタール樹脂(POM樹脂)で成形し、キャップ5の挟持片53を筒部51と共にポリアセタール樹脂(POM樹脂)で成形し、チューブ52をポリテトラフルオロエチレン樹脂(PTFE)で成形する。尚、チューブ52は肉厚0.8mmで外径10mm(内径8.4mm)の円筒状であり、最大外形寸法5mmのペン先31を、内部に触れさせることなく十分に収容することができる。
また、チューブ52と接触する挟持片53の内方突部53bの巾は16mmとしてあり、チューブ52の全幅を圧縮して密閉できるようにしてある。
さらに、本実施形態の筆記体31の筆記端31aは先窄みの板状であり、筆記端31aの両側(図面上下)に形成された平面部311a,312a(図6、図6E参照)が押動体4の移動方向に対し直交する方向に設けられていることから、押動体4を親指で押動した際に、その親指と同じ位置に筆記端31aの平面部311a,312aが位置することから、自然と線を引く際の筆記端31aの向き(筆跡が巾広くなる向き)で書き始めることが可能となり、蛍光マーカーなど板状の筆記端の筆記具において好適である。
In the retractable writing instrument 1 of the present embodiment, the pusher 4 is molded from polyacetal resin (POM resin), the clamping piece 53 of the cap 5 is molded together with the cylindrical portion 51 from polyacetal resin (POM resin), and the tube 52 is formed from polytetral. Molded with fluoroethylene resin (PTFE). The tube 52 has a cylindrical shape with a wall thickness of 0.8 mm and an outer diameter of 10 mm (inner diameter of 8.4 mm), and can sufficiently accommodate the pen tip 31 having a maximum outer dimension of 5 mm without touching the inside.
Further, the width of the inward protruding portion 53b of the holding piece 53 in contact with the tube 52 is 16 mm, so that the entire width of the tube 52 can be compressed and sealed.
Furthermore, the writing end 31a of the writing body 31 of the present embodiment is a tapered plate shape, and flat portions 311a and 312a (see FIGS. 6 and 6E) formed on both sides (upper and lower sides) of the writing end 31a. Since it is provided in a direction orthogonal to the moving direction of the pusher 4, when the pusher 4 is pushed with the thumb, the flat portions 311a and 312a of the writing end 31a are located at the same position as the thumb. Therefore, it is possible to start writing in the direction of the writing end 31a when naturally drawing a line (the direction in which the handwriting is widened), which is suitable for a writing tool with a plate-like writing end such as a fluorescent marker.

図7は変形例による出没式筆記具の作動状態を一部断面化にして側面から見た図である。図7Aは筆記端を没入させた状態を示し、図7Bは筆記端を突出させた状態を示す。 出没式筆記具11は軸筒2の窓部21aに押動体14を装着してある。前記押動体14は、軸筒2の上面に設けた長方形状の窓部21aに挿着されており、両側壁4bの前後に設けた突部4cにより、押動体14が窓部21aから外れないようにしてある。また、押動体4の前後には当接部14t1,14t2をそれぞれ突設してあり、キャップ体15の側面に設けた前方斜面151と、筆記体3の側面に設けた後方斜面135とにそれぞれ当接するようにしてある。
キャップ体15の前方斜面151と筆記体3の後方斜面135との間にはコイルスプリング6が配設されており、常時、キャップ体15と筆記体13とが離間する方向へ弾発力が働くようにしてある。コイルスプリング6によるキャップ体15の前進は、前方斜面151に押動体14の当接部14t1が当接することで規制され、コイルスプリング6による筆記体13の後退は、後方斜面135に押動体14の当接部14t2が当接することで規制される。
その他の構成は前述の出没式筆記具1と略同様である。このため、図7の出没式筆記具11において前述の出没式筆記具1と共通する構成部分には同様の符号を付し、その詳細な説明を省略する。
FIG. 7 is a partial cross-sectional view of the operating state of the retractable writing instrument according to the modification, viewed from the side. FIG. 7A shows a state where the writing end is immersed, and FIG. 7B shows a state where the writing end protrudes. The retractable writing instrument 11 has a pusher 14 attached to the window portion 21 a of the shaft tube 2. The pusher 14 is inserted into a rectangular window portion 21a provided on the upper surface of the shaft tube 2, and the pusher 14 is not detached from the window portion 21a by the protrusions 4c provided on the front and rear sides of both side walls 4b. It is like that. Further, abutting portions 14t1 and 14t2 are provided on the front and rear sides of the pusher 4, respectively, and a front slope 151 provided on the side surface of the cap body 15 and a rear slope 135 provided on the side surface of the writing body 3, respectively. It is made to contact.
A coil spring 6 is disposed between the front slope 151 of the cap body 15 and the rear slope 135 of the writing body 3, and the elastic force always acts in a direction in which the cap body 15 and the writing body 13 are separated from each other. It is like that. The forward movement of the cap body 15 by the coil spring 6 is regulated by the contact portion 14t1 of the pusher 14 coming into contact with the front slope 151, and the retraction of the writing body 13 by the coil spring 6 is caused by the pusher 14 on the rear slope 135. It is regulated by contact of the contact portion 14t2.
Other configurations are substantially the same as those of the above-described retractable writing instrument 1. For this reason, in the retractable writing instrument 11 of FIG. 7, the same code | symbol is attached | subjected to the same component as the above-mentioned retractable writing instrument 1, and the detailed description is abbreviate | omitted.

以上のような出没式筆記具11は、前述の出没式筆記具1と同様に、図7Aに示す状態(図6における図6Aの状態)では、筆記端(不図示)が軸筒2内に没入している。
押動体14の押動部4aを軸径方向(図の下方)へ押動することで、押動体14の前方に形成した当接部14t1でキャップ体15を後退させ、押動体14の後方に形成した当接部14t2で筆記体13の後方斜面135を前進させ、図7Bに示すように前進した筆記体30の筆記端31aが軸筒2の前端孔2aから完全に突出して筆記可能状態となる。
また、図7Bの状態で押動体14を押動する力を開放することにより、図7Bから図7Aの状態となり、筆記端31aが軸筒2内に没入し、再度キャップ体15で気密状態が保持され、インキの乾燥が防止され、筆記端が保護される。
In the state shown in FIG. 7A (state shown in FIG. 6A in FIG. 6), the writing end 11 (not shown) is immersed in the shaft tube 2 in the same manner as the above-described writing type writing tool 1. ing.
By pushing the pushing portion 4a of the pushing body 14 in the axial diameter direction (downward in the drawing), the cap body 15 is moved backward by the contact portion 14t1 formed in front of the pushing body 14 and is moved to the rear of the pushing body 14. With the formed contact portion 14t2, the rear slope 135 of the writing body 13 is advanced, and the writing end 31a of the writing body 30 that has advanced as shown in FIG. 7B completely protrudes from the front end hole 2a of the shaft tube 2 and is ready for writing. Become.
Moreover, by releasing the force that pushes the pusher 14 in the state of FIG. 7B, the state of FIG. 7B is changed to that of FIG. 7A, the writing end 31 a is immersed in the shaft cylinder 2, and the cap body 15 is again airtight. Is retained, the ink is prevented from drying, and the writing edge is protected.

次に、図8から図13を用いて第二実施形態の出没式筆記具について説明を行う。
図8は、第二実施形態の出没式筆記具の平面図である。図9は、第二実施形態の出没式筆記具の側面図である。図10は、図8のB−B線断面図である。図11は、第二実施形態の出没式筆記具の要部拡大一部断面図である。図12は、第二実施形態のキャップ体を取り外した状態の斜視図である。図13は、第二実施形態の出没式筆記具の作動状態を時系列的に示した図である。
Next, the retractable writing instrument of the second embodiment will be described with reference to FIGS.
FIG. 8 is a plan view of the retractable writing instrument of the second embodiment. FIG. 9 is a side view of the retractable writing instrument of the second embodiment. 10 is a cross-sectional view taken along line BB in FIG. FIG. 11 is an enlarged partial cross-sectional view of a main part of the retractable writing instrument according to the second embodiment. FIG. 12 is a perspective view of the second embodiment with the cap body removed. FIG. 13 is a diagram showing the operating state of the retractable writing instrument of the second embodiment in time series.

本実施の形態の出没式筆記具21は、軸筒22と、該軸筒22内に収容される筆記体23と、軸筒22の外面より軸径方向外方へ突出する押動部4aを備え且つ該軸筒22内に一部が収容される平面視が長方形状の押動体24とを備え、該押動体24を軸径方向へ押動及び押動する力を解放することにより前記筆記体23のペン先31を軸筒22の前端孔2aより出没自在にさせる出没式筆記具である。   The retractable writing instrument 21 of the present embodiment includes a shaft tube 22, a writing body 23 accommodated in the shaft tube 22, and a pressing portion 4 a that protrudes outward in the axial radial direction from the outer surface of the shaft tube 22. And a pusher 24 having a rectangular shape in plan view, a part of which is accommodated in the shaft cylinder 22, and releasing the force that pushes and pushes the pusher 24 in the axial radial direction. 23 is a retractable writing instrument that allows 23 pen nibs 31 to protrude and retract from the front end hole 2a of the shaft tube 22.

前記筆記体23は、繊維を収束させて形成したペン先31が前端開口部に圧入固着されたインキ収容管32と、インキ収容管32の後方を被覆する尾冠33と、前記インキ収容管32内の繊維束に充填された蛍光のインキ34とを備える。
ペン先31は筆記端31aをインキ収容管32から露出させ、軸部31bをインキ収容管32の細径部32aに挿着してある。
The writing body 23 includes an ink storage tube 32 in which a pen tip 31 formed by converging fibers is press-fitted and fixed to a front end opening, a tail cap 33 covering the back of the ink storage tube 32, and the ink storage tube 32. And the fluorescent ink 34 filled in the inner fiber bundle.
The pen tip 31 has the writing end 31 a exposed from the ink storage tube 32, and the shaft portion 31 b is inserted into the small diameter portion 32 a of the ink storage tube 32.

前記押動体24は、軸筒22の側面(図面における上面)に設けた長方形状の窓部21aに挿着され、押動体24が回動できるように窓部21aの前方縁部に対して、押動体24の前方に形成した切欠溝24dを係止させてある。また、押動体24は、両側壁4bの後方に設けた突部4cにより、押動体24が窓部21aから外れないようにしてある。
前記押動体24は、両側壁4bの後端部に下方へ突出する当接部24tを突設してあり、筆記体23の側面に設けた押動斜面235に当接するようにしてある。前記押動斜面235は窓部21a側に前端を有し該窓部21aの反対側に後端を有している。
The pusher 24 is inserted into a rectangular window portion 21a provided on the side surface (upper surface in the drawing) of the shaft tube 22, so that the pusher 24 can rotate with respect to the front edge of the window portion 21a. A cutout groove 24d formed in front of the pusher 24 is locked. Further, the pusher 24 is configured so that the pusher 24 is not detached from the window portion 21a by the protrusion 4c provided at the rear of the side walls 4b.
The pressing body 24 is provided with a contact portion 24t protruding downward at the rear end portion of both side walls 4b so as to contact a pressing slope 235 provided on the side surface of the writing body 23. The pushing slope 235 has a front end on the window 21a side and a rear end on the opposite side of the window 21a.

前記軸筒22の内部前方には、前記ペン先31が挿通するキャップ体25が配設されている。
キャップ体25は、前記筆記体のペン先31が挿通する筒部51と、筒部51の前方部51aを挿着させたチューブ52とを有する。筒部51の前方には上下に配した二つの挟持片53を延設してある。挟持片53の前端部には、外方に突出する外方突部53aと、内方に突出する内方突部53bとを形成してある。
キャップ体25の筒部51の内方にはOリング54が固設されており(図10参照)、筆記体23の外周面にOリング54が接することでキャップ体25の後方が密閉状態となるようにしてある。
A cap body 25 through which the pen tip 31 is inserted is disposed in front of the shaft cylinder 22.
The cap body 25 includes a cylinder part 51 through which the pen point 31 of the writing body is inserted, and a tube 52 into which a front part 51 a of the cylinder part 51 is inserted. Two clamping pieces 53 arranged vertically are extended in front of the cylindrical portion 51. An outer protrusion 53 a that protrudes outward and an inward protrusion 53 b that protrudes inward are formed at the front end of the sandwiching piece 53.
An O-ring 54 is fixed inside the cylindrical portion 51 of the cap body 25 (see FIG. 10), and the O-ring 54 comes into contact with the outer peripheral surface of the writing body 23 so that the rear of the cap body 25 is in a sealed state. It is supposed to be.

軸筒22の内部には筒部材2tが圧入により固着されており、筒部材2tと筆記体23との間にはコイルスプリング6が配設され、筒部材2tの内方に筆記体23が遊嵌してコイルスプリング6の弾発力に抗して前進し、コイルスプリング6の弾発力により筆記体23が後退されるようにしてある。   A cylindrical member 2t is fixed inside the shaft cylinder 22 by press-fitting, and a coil spring 6 is disposed between the cylindrical member 2t and the writing body 23, and the writing body 23 is free to play inside the cylindrical member 2t. It fits and moves forward against the elastic force of the coil spring 6, and the writing body 23 is moved backward by the elastic force of the coil spring 6.

図11に示す通り本実施形態では、軸筒22の前方内面に後方へ向かって先窄む摺動面221bを設け、前記挟持片53の外方突部53aが摺動するようにしてある。また、本実施形態の出没式筆記具21は、筆記体23が軸筒22内に没入した状態で、コイルスプリング6による弾発力で筆記体23が後方へ付勢され、図10に示す筆記体23の係止突部23kがキャッ体25の係止受部25kに後退不能に係止されることで、筆記体23の後退に伴いキャップ体25も後退し、後方へ向かって先窄む摺動面221bにより二つの挟持片53が互いに近接するよう内方へ撓むように弾性変形し、挟持片53の内方突部53bによりチューブ52の前方部が圧縮されるよう弾性変形することで、キャップ体25の前方が閉塞され、キャップ体5の内部が気密状態となり、インキ34の乾燥が防止され、筆記端31aが保護される。   As shown in FIG. 11, in this embodiment, a sliding surface 221 b that is tapered backward is provided on the front inner surface of the shaft tube 22 so that the outward projection 53 a of the clamping piece 53 slides. In the retractable writing instrument 21 of the present embodiment, the writing body 23 is urged rearward by the elastic force of the coil spring 6 in a state where the writing body 23 is immersed in the shaft tube 22, and the writing body shown in FIG. 23, the cap projection 25k is retracted to the latch receiving portion 25k of the cap body 25 so that the cap body 25 is retracted along with the retraction of the writing body 23, and the slide is tapered backward. The moving surface 221b is elastically deformed so that the two sandwiching pieces 53 are bent inward so as to be close to each other, and the inner projecting portion 53b of the sandwiching piece 53 is elastically deformed so that the front portion of the tube 52 is compressed. The front of the body 25 is closed, the inside of the cap body 5 is airtight, the ink 34 is prevented from drying, and the writing end 31a is protected.

尚、本実施形態では、前記摺動面221bを、軸筒22の内部に嵌着した駒部材22cの前方に形成してあり、駒部材22cは、中央に前後に延びる溝部221cを設けてある(図11参照)。
図12に示すように、挟持片53の腕部53cは、溝部221cの巾より狭い巾で形成してあり、溝部221cの内部で前後動可能に挿通され、挟持片53の外方突部53aと内方突部53bは、溝部221cの巾より広い巾で形成してあり、溝部221cに挿通することなく、内方突部53bが摺動面221bを摺動できるようにしてある。
前述の出没式筆記具1と共通する構成部分には同様の符号を付し、その詳細な説明を省略する。
In the present embodiment, the sliding surface 221b is formed in front of the piece member 22c fitted inside the shaft tube 22, and the piece member 22c is provided with a groove portion 221c extending in the front-rear direction. (See FIG. 11).
As shown in FIG. 12, the arm portion 53c of the holding piece 53 is formed with a width narrower than the width of the groove portion 221c, and is inserted in the groove portion 221c so as to be movable back and forth. The inner protrusion 53b is formed wider than the groove 221c, so that the inner protrusion 53b can slide on the sliding surface 221b without being inserted into the groove 221c.
Constituent parts common to the above-described retractable writing instrument 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

次に、図13を用いて本実施形態の出没式筆記具を作動させる状態の説明を行う。
図13は、出没式筆記具の作動状態を一部断面化して側面から見た図であり時系列的に示した図である。
図13Aは、図8から図11に示された出没式筆記具21の状態であり軸筒22に筆記体23が没入した状態である。
図13Bは、図13Aの状態から押動体24の押動部4aを軸筒2の軸径方向(図の下方)へ少し押動した状態の図である。この時、押動体24は、切欠溝24dを支点に回動運動をすることとなり、押動体24の当接部24tの下端が軸筒22の中心線側へ移動し、当接部24tが摺動した押動斜面235が少し前進する。この際、キャップ体25に固設したOリング54が、筆記体23の外周面に接していることから、筆記体23の前進に伴い、キャップ体25も前進される。
図13Cは、図13Bの状態から押動体24の押動部4aを軸筒22の軸径方向へさらに押動した状態の図である。この状態で押動体24の当接部24tの下端が軸筒2の中心線近傍まで移動し、当接部24tが摺動した押動斜面235がさらに前進する。この際、筆記体23に従動したキャップ体25の前進に伴い、二つの挟持片53がその弾発力により摺動面221bを摺動して撓んだ状態から解放され、チューブ52もその弾性力により挟持片53で圧縮された状態から図12に示した元の状態へ復元して開放される。また、押動斜面235に従動する筆記体23の前進により筆記端31aも前進するが、その際、チューブ52が同時に挟持片53から解放されて復元するようにしたことで、筆記端31aがチューブ52に触れることなく前進される。これによりチューブ52の開口部52aのインキによる汚損が防止され、またペン先31の損傷を防止することもでき、さらにペン先31が他部材に触れないことから抵抗が生じ難く、ペン先31の突出動作を滑らかに行うことができる。
図13Dは、図13Cの状態から押動体24の押動部4aを軸筒22の軸径方向へまたさらに押動した状態の図である。この状態で押動体24の当接部24tの下端は軸筒22の中心線を越えて下方に移動し、当接部24tが摺動する押動斜面235をさらに前進させて、前進した筆記体23の筆記端31aが軸筒22の前端孔2aから少し突出する。尚、図13Dに示す挟持片53は、外方突部53aが軸筒22の前方内面の傾斜壁22dに当接することで前進が規制され、結果、キャップ体25の前進は止まり、筆記体23だけがキャップ体25のOリング54の内面を摺動しながら前進することとなり、その後も同様に、押動体24の押動部4aを押動することで、筆記体23だけが前進される。
図13Eは、図13Dの状態から押動体24の押動部4aを軸筒22の軸径方向へ完全に押動した状態の図である。この状態で押動体24の押動部4aは軸筒22の上面と一致し、押動体24の当接部24tの下端は軸筒22の内面における窓部21aの反対側まで寄り、コイルスプリング6が完全圧縮され、前進した筆記体23の筆記端31aが軸筒22の前端孔2aから完全に突出して筆記可能状態となる。
Next, a state in which the retractable writing instrument of this embodiment is operated will be described with reference to FIG.
FIG. 13 is a diagram showing a partial sectional view of the operating state of the retractable writing instrument as seen from the side, and shows the time series.
FIG. 13A shows the state of the retractable writing instrument 21 shown in FIGS. 8 to 11, in which the writing body 23 is immersed in the shaft tube 22.
13B is a diagram showing a state where the pushing portion 4a of the pushing body 24 is slightly pushed from the state shown in FIG. 13A in the axial diameter direction (downward in the drawing) of the shaft cylinder 2. FIG. At this time, the pusher 24 rotates with the notch groove 24d as a fulcrum, the lower end of the contact portion 24t of the pusher 24 moves to the center line side of the shaft tube 22, and the contact portion 24t slides. The moved pushing slope 235 moves forward a little. At this time, since the O-ring 54 fixed to the cap body 25 is in contact with the outer peripheral surface of the writing body 23, the cap body 25 is also advanced as the writing body 23 advances.
13C is a view showing a state where the pushing portion 4a of the pushing body 24 is further pushed in the axial direction of the shaft tube 22 from the state shown in FIG. 13B. In this state, the lower end of the contact portion 24t of the pusher 24 moves to the vicinity of the center line of the shaft cylinder 2, and the push slope 235 on which the contact portion 24t slides further advances. At this time, with the advancement of the cap body 25 driven by the writing body 23, the two clamping pieces 53 are released from the state of being slid and bent on the sliding surface 221b by the elastic force, and the tube 52 is also elastic. The state compressed by the clamping piece 53 by force is restored to the original state shown in FIG. The writing end 31a is also moved forward by the advancement of the writing body 23 driven by the pushing slope 235. At this time, the tube 52 is simultaneously released from the holding piece 53 so that the writing end 31a is restored. Advances without touching 52. This prevents the opening 52a of the tube 52 from being soiled by ink, can also prevent the pen tip 31 from being damaged, and since the pen tip 31 does not touch other members, resistance is unlikely to occur. The protruding operation can be performed smoothly.
13D is a diagram showing a state in which the pushing portion 4a of the pushing body 24 is further pushed in the axial diameter direction of the shaft tube 22 from the state of FIG. 13C. In this state, the lower end of the contact portion 24t of the pusher 24 moves downward beyond the center line of the shaft tube 22, and the push slope 235 on which the contact portion 24t slides further advances to advance the writing body. 23 of the writing end 31 a slightly protrudes from the front end hole 2 a of the shaft tube 22. 13D is prevented from advancing when the outward projection 53a abuts against the inclined wall 22d of the front inner surface of the shaft tube 22, and as a result, the forward movement of the cap body 25 is stopped and the writing body 23 is stopped. Only the handwriting body 23 is advanced by sliding the inner surface of the O-ring 54 of the cap body 25 while moving the pushing portion 4a of the pushing body 24.
13E is a diagram showing a state in which the pushing portion 4a of the pushing body 24 is completely pushed in the axial diameter direction of the shaft tube 22 from the state shown in FIG. 13D. In this state, the pushing portion 4a of the pushing body 24 coincides with the upper surface of the shaft cylinder 22, and the lower end of the abutting portion 24t of the pushing body 24 is close to the opposite side of the window portion 21a on the inner surface of the shaft cylinder 22, Is completely compressed, and the writing end 31a of the advanced writing body 23 completely protrudes from the front end hole 2a of the shaft tube 22 to be ready for writing.

図13Eで示した筆記端31aを突出させた状態での筆記時においては、筆圧の反力が押動体24を軸径方向の反対側(図面上方)へ戻そうとする力として働くが、押動体を押動する力の向きと筆記時に軸筒を把持する力の向きとが同じであることから、結果、筆記端31aを突出状態で維持させるロック機構がなくとも、筆記端31aを突出させた状態を維持して筆記を行うことができる。   At the time of writing with the writing end 31a shown in FIG. 13E protruding, the reaction force of the writing pressure works as a force to return the pusher 24 to the opposite side of the axial direction (upward in the drawing) Since the direction of the force that pushes the pusher is the same as the direction of the force that grips the shaft cylinder at the time of writing, the result is that the writing end 31a protrudes even if there is no lock mechanism that keeps the writing end 31a in the protruding state. Writing can be performed while maintaining the state.

図13Eの状態で押動体24を押動する力を開放することにより、図13Eから図13Aの状態へ逆に作動しながら筆記端31aが軸筒22内に没入し、再度キャップ体25で気密状態が保持され、インキ34の乾燥が防止され、筆記端31aが保護される。
尚、筆記端31aが没入する際には、コイルスプリング6の弾発力が筆記体23を後退させる力として働き、図10に示したOリング54が筆記体23に接していることからキャップ体25を後退させる力としても働き、キャップ体25は挟持片53がチューブ52の前方部を圧縮することで後退が先に規制されるが、筆記体23は係止突部23kがキャップ体25の係止受部25kに当接されるまでコイルスプリング6の弾発力で後退し、キャップ体25の奥にまで没入することが可能である。
By releasing the force that pushes the pusher 24 in the state of FIG. 13E, the writing end 31 a is immersed in the shaft tube 22 while operating in reverse from the state of FIG. 13E to the state of FIG. The state is maintained, the drying of the ink 34 is prevented, and the writing end 31a is protected.
When the writing end 31a is immersed, the elastic force of the coil spring 6 acts as a force for retracting the writing body 23, and the O-ring 54 shown in FIG. The cap body 25 is also restrained by the clamping piece 53 compressing the front portion of the tube 52 first, but the writing body 23 has the locking projection 23k of the cap body 25. It is possible to retract by the elastic force of the coil spring 6 until it comes into contact with the locking receiving portion 25k, and to immerse into the back of the cap body 25.

本実施形態の出没式筆記具21は、押動体24をポリアセタール樹脂(POM樹脂)で成形し、キャップ25の挟持片53を筒部51と共にポリアセタール樹脂(POM樹脂)で成形し、チューブ52をポリテトラフルオロエチレン樹脂(PTFE)で成形する。尚、チューブ52は肉厚0.8mmで外径10mm(内径8.4mm)の円筒状であり、最大外形寸法5mmのペン先31を、内部に触れさせることなく十分に収容することができる。
また、チューブ52と接触する挟持片53の内方突部53bの巾は16mmとしてあり、チューブ52の全幅を圧縮して密閉できるようにしてある。
さらに、本実施形態の筆記体31の筆記端31aは先窄みの板状であり、筆記端31aの両側(図面上下)に形成された平面部311a,312a(図6、図6E参照)が押動体24の移動方向に対し直交する方向に設けられていることから、押動体24を親指で押動した際に、その親指と同じ位置に筆記端31aの平面部311a,312aが位置することから、自然と線を引く際の筆記端31aの向き(筆跡が巾広くなる向き)で書き始めることが可能となり、蛍光マーカーなど板状の筆記端の筆記具において好適である。
In the retractable writing instrument 21 of the present embodiment, the pusher 24 is molded from polyacetal resin (POM resin), the clamping piece 53 of the cap 25 is molded together with the cylindrical portion 51 from polyacetal resin (POM resin), and the tube 52 is polytetra Molded with fluoroethylene resin (PTFE). The tube 52 has a cylindrical shape with a wall thickness of 0.8 mm and an outer diameter of 10 mm (inner diameter of 8.4 mm), and can sufficiently accommodate the pen tip 31 having a maximum outer dimension of 5 mm without touching the inside.
Further, the width of the inward protruding portion 53b of the holding piece 53 in contact with the tube 52 is 16 mm, so that the entire width of the tube 52 can be compressed and sealed.
Furthermore, the writing end 31a of the writing body 31 of the present embodiment is a tapered plate shape, and flat portions 311a and 312a (see FIGS. 6 and 6E) formed on both sides (upper and lower sides) of the writing end 31a. Since it is provided in a direction perpendicular to the moving direction of the pusher 24, when the pusher 24 is pushed with the thumb, the flat portions 311a and 312a of the writing end 31a are located at the same position as the thumb. Therefore, it is possible to start writing in the direction of the writing end 31a when naturally drawing a line (the direction in which the handwriting is widened), which is suitable for a writing tool with a plate-like writing end such as a fluorescent marker.

1…出没式筆記具、
2…軸筒、
2a…前端孔、
2b…後端内面、
21a…窓部、
21b…摺動面、
3…筆記体、
3a…後端、
3t…当接部、
31…ペン先、
31a…筆記端、
311a,312a…平面部、
31b…軸部、
32…インキ収容管、
32a…細径部、
33…尾冠、
34…インキ、
35…脚部、
4…押動体、
4a…押動部、
4b…両側壁、
4c…突部、
41…前方斜面、
42…後方斜面、
5…キャップ体、
51…筒部、
51a…前方部、
52…チューブ、
52a…開口部、
5t…当接部、
53…挟持片、
53a…外方突部、
53b…内方突部、
53c…腕部、
54…Oリング、
55…脚部、
6…コイルスプリング、
11…出没式筆記具、
14…押動体、
14c…突部、
14t1,14t2…当接部、
15…キャップ体、
151…前方斜面、
135…後方斜面、
21…出没式筆記具、
22…軸筒、
22c…駒部材、
22d…傾斜壁、
22t…筒部材、
221c…溝部、
23…筆記体、
235…押動斜面、
24…押動体、
24d…切欠溝、
24t…当接部、
2t…筒部材、
221b…摺動面、
23k…係止突部、
25…キャップ体、
25k…係止受部。
1 ... Intrusive writing instrument,
2 ... shaft tube,
2a ... front end hole,
2b ... rear end inner surface,
21a ... window,
21b ... sliding surface,
3 ... cursive,
3a ... rear end,
3t ... contact part,
31 ... nib,
31a ... writing end,
311a, 312a ... plane part,
31b ... shaft part,
32. Ink storage tube,
32a ... small diameter part,
33 ... Tail crown,
34 ... ink,
35 ... Legs,
4 ... Pushing body,
4a ... Pushing part,
4b ... both side walls,
4c ... projection,
41 ... Front slope,
42 ... Back slope,
5 ... Cap body,
51 ... Cylinder part,
51a ... front part,
52 ... Tube,
52a ... opening,
5t ... contact part,
53 ... Clamping piece,
53a ... outward projection,
53b ... inward protrusion,
53c ... arms,
54 ... O-ring,
55 ... Legs,
6 ... Coil spring,
11 ... Intrusive writing instrument,
14 ... Pusher,
14c ... projection,
14t1, 14t2 ... contact part,
15 ... Cap body,
151 ... Front slope,
135 ... Back slope,
21 ... Intrusive writing instruments,
22 ... Shaft tube,
22c ... piece member,
22d ... inclined wall,
22t ... cylindrical member,
221c ... groove portion,
23 ... cursive,
235 ... Pushing slope,
24 ... Pushing body
24d ... notch groove,
24t ... contact part,
2t ... cylindrical member,
221b ... sliding surface,
23k ... locking projection,
25 ... Cap body,
25k ... Lock receiving part.

Claims (2)

軸筒内に筆記体を収容し、前記軸筒の開口より前記筆記体の筆記端を出没可能にした出没式筆記具であって、
前記軸筒内に、キャップ体と、該キャップ体の後方に配した前記筆記体と、該筆記体と当該キャップ体との間に配した弾発体と、を備え、
前記軸筒の側面に設けた窓部に、前記キャップ体及び前記筆記体に当接する押動体を装着し、
前記キャップ体が、前記筆記体が挿通する筒部と、該筒部の前方に延設した複数の挟持片と、前記筒部の前方で前記挟持片間に配したチューブと、を有し、
前記軸筒前方の内面に、前記挟持片が摺動し前方へ向かって先窄む摺動面を設け、
前記押動体または前記キャップ体に、前記軸筒の内面における前記窓部側に後端を有し該窓部の反対側に前端を有するよう形成した前方斜面を設け、
前記押動体または前記筆記体に、前記軸筒の内面における前記窓部側に前端を有し該窓部の反対側に後端を有するよう形成した後方斜面を設け、
前記筆記端が前記キャップ体の内方に収容された状態においては、
前記弾発体が前記キャップ体を前方へ弾発することで、前記軸筒の摺動面により前記二つの挟持片が弾性変形しながら接近して前記チューブを潰すように挟持して該キャップ体の前方が閉塞され、
前記押動体を前記軸筒の軸径方向へ押動して前記筆記端を該軸筒の開口より突出させる際には、
前記弾発体を圧縮しながら、前記前方斜面で前記キャップ体を後退させると共に前記後方斜面で前記筆記体を前進させ、前記複数の挟持片が前記摺動面を摺動して該挟持片の弾性力で互いに離間しながら後退し、前記筆記端が前記軸筒の開口より突出されることを特徴とした出没式筆記具。
A retractable writing instrument that accommodates a cursive body in a shaft cylinder, and allows the writing end of the cursive body to project from the opening of the shaft cylinder,
In the shaft tube, provided with a cap body, the writing body disposed behind the cap body, and a projectile body disposed between the writing body and the cap body,
Attach a pusher that abuts the cap body and the writing body to the window provided on the side surface of the shaft cylinder,
The cap body includes a cylindrical portion through which the writing body is inserted, a plurality of clamping pieces extending in front of the cylindrical portion, and a tube disposed between the clamping pieces in front of the cylindrical portion,
On the inner surface in front of the shaft tube, a sliding surface is provided in which the clamping piece slides and is tapered toward the front,
Provided on the pushing body or the cap body is a front slope formed so as to have a rear end on the window portion side on the inner surface of the shaft cylinder and a front end on the opposite side of the window portion;
The push body or the writing body is provided with a rear slope formed so as to have a front end on the window portion side on the inner surface of the shaft tube and a rear end on the opposite side of the window portion,
In the state where the writing end is accommodated inside the cap body,
When the projectile body ejects the cap body forward, the two clamping pieces approach each other while being elastically deformed by the sliding surface of the shaft tube so as to crush the tube, The front is blocked,
When pushing the pusher in the axial diameter direction of the shaft cylinder and projecting the writing end from the opening of the shaft cylinder,
While compressing the projectile body, the cap body is retracted on the front slope and the writing body is advanced on the rear slope, and the plurality of sandwiching pieces slide on the sliding surface to A retractable writing instrument, wherein the writing end is retreated while being separated from each other by an elastic force, and the writing end protrudes from an opening of the shaft cylinder.
軸筒内に筆記体を収容し、前記軸筒の開口より前記筆記体の筆記端を出没可能にした出没式筆記具であって、
前記軸筒内に、キャップ体と、該キャップ体の後方に配した前記筆記体と、該筆記体を後方へ弾発する弾発体と、を備え、
前記軸筒の側面に設けた窓部に、前記キャップ体及び前記筆記体に当接する押動体を装着し、
前記キャップ体が、前記筆記体が挿通する筒部と、該筒部の前方に延設した複数の挟持片と、前記筒部の前方で前記挟持片間に配したチューブと、を有し、
前記軸筒前方の内面に、前記挟持片が摺動し後方へ向かって先窄む摺動面を設け、
前記押動体または前記筆記体に、前記軸筒の内面における窓部側に前端を有し該窓部の反対側に後端を有するよう形成した押動斜面を設け、
前記筆記端が前記キャップ体の内方に収容された状態においては、
前記弾発体が前記筆記体を後方へ弾発することで、前記筆記体に連結されたキャップ体が後退し、
軸筒の傾斜面により前記複数の挟持片が弾性変形しながら接近して前記チューブを潰すように挟持して該キャップ体の前方が閉塞され、
前記押動体を前記軸筒の軸径方向へ押動して前記筆記端を該軸筒の開口より突出させる際には、
前記弾発体を圧縮しながら、前記押動斜面で前記筆記体を前進させ、前記挟持片が前記摺動面を摺動して該挟持片の弾性力で互いに離間しながら前進し、
前記筆記端が前記軸筒の開口より突出されることを特徴とした出没式筆記具。
A retractable writing instrument that accommodates a cursive body in a shaft cylinder, and allows the writing end of the cursive body to project from the opening of the shaft cylinder,
In the shaft tube, provided with a cap body, the writing body arranged behind the cap body, and a projectile body for projecting the writing body backward,
Attach a pusher that abuts the cap body and the writing body to the window provided on the side surface of the shaft cylinder,
The cap body includes a cylindrical portion through which the writing body is inserted, a plurality of clamping pieces extending in front of the cylindrical portion, and a tube disposed between the clamping pieces in front of the cylindrical portion,
Provided on the inner surface in front of the shaft cylinder a sliding surface on which the clamping piece slides and is tapered toward the rear,
The pushing body or the writing body is provided with a pushing slope formed so as to have a front end on the window portion side on the inner surface of the shaft cylinder and a rear end on the opposite side of the window portion,
In the state where the writing end is accommodated inside the cap body,
The bullet body repels the cursive body backward, and the cap body connected to the cursive body recedes,
The front end of the cap body is closed by sandwiching the plurality of sandwiching pieces while being elastically deformed by the inclined surface of the shaft cylinder so as to crush the tube,
When pushing the pusher in the axial diameter direction of the shaft cylinder and projecting the writing end from the opening of the shaft cylinder,
While compressing the projectile body, the writing body is advanced by the pushing slope, and the sandwiching piece slides on the sliding surface and advances while being separated from each other by the elastic force of the sandwiching piece,
The writing and writing type writing instrument, wherein the writing end protrudes from an opening of the shaft tube.
JP2018069067A 2018-03-30 2018-03-30 Retractable writing instrument Pending JP2019177639A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110936755A (en) * 2019-12-22 2020-03-31 杭州简弈科技有限公司 Detachable sliding pen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110936755A (en) * 2019-12-22 2020-03-31 杭州简弈科技有限公司 Detachable sliding pen
CN110936755B (en) * 2019-12-22 2020-10-09 杭州简弈科技有限公司 Detachable sliding pen
US10960705B1 (en) 2019-12-22 2021-03-30 Hangzhou Jianyi Technology Co., Ltd. Detachable and retractable pen

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