JP2006062288A

JP2006062288A - Duplex writing utensil

Info

Publication number: JP2006062288A
Application number: JP2004249895A
Authority: JP
Inventors: Naoki Sekiguchi; 直樹関口; Seiichi Kobayashi; 清一関口直樹小林
Original assignee: Mitsubishi Pencil Co Ltd
Current assignee: Mitsubishi Pencil Co Ltd
Priority date: 2004-08-30
Filing date: 2004-08-30
Publication date: 2006-03-09

Abstract

<P>PROBLEM TO BE SOLVED: To make it easy to change the combination between a mechanical pencil and a ballpoint pen. <P>SOLUTION: A sliding piece is mounted to the rear end of a writing body under the condition that the sliding piece fits loosely to the guiding groove of a guiding tube. A tubular cam for sliding the sliding piece is fixingly provided to a rear shaft. The tip part of a writing body can be selectively retracted and extended by pivoting the rear shaft to both a head shaft and a mid-shaft fixed to a guiding tube by providing an axially displacing recessed part either on the rear end of the mid-shaft or on the fore end of the rear shaft and an axially displacing projected part on the other end so as to make the rear shaft axially move the mid-shaft at the position, in which the recessed part opposes to the projecting part in a position, at which the tip part of the writing body extends and to make the rear shaft impossible to axially move the mid-shaft at the position, in which the recessed part does not oppose to the projecting part. By immovably attaching the changed peripherally mounting position of the mid-shaft to the guiding tube, the axially shiftableness or axially non-shiftableness becomes possible at all the projected postions of the tip of the writing body or the axially shiftableness becomes possible at one position and the axially non-shiftableness becomes at other position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、複数のボールペン等筆記体を搭載して、選択的に軸先から筆記体の先端部を出没可能とする複式筆記具の改良に関する。 The present invention relates to an improvement of a dual-type writing instrument that is equipped with a plurality of writing bodies such as ballpoint pens so that the tip of the writing body can be selectively projected and retracted from an axial tip.

実公昭５５−５３４３０号Shoko 55-53430 実公平０６−１５７４９号No.06-15749 実用新案登録番号第２５１０９８４号Utility model registration number 2510984 実用新案登録番号第２５２５５３５号Utility model registration number 2525535

特許文献１には、一本の軸に黒色ボールペンと赤色ボールペンの組み合わせによる２本の筆記体を収納して、下部軸筒（先軸）に対する上部軸筒（後軸）の回転操作によって各筆記体の筆記先端部を軸先から交互に且つ選択的に出没可能とするものが示されている。また、このものは下部軸筒に対して上部軸筒が軸推移不可となされている。
特許文献２には、一本の軸にシャープペンシルとボールペン等の組み合わせによる２本の筆記体を収納して、キャップ（後軸）の回転操作によって各筆記体の筆記先端部を軸先から交互に且つ選択的に出没可能とし、シャープペンシル突出時において、先軸に対してキャップを軸推移することで芯が繰り出し可能となる複式筆記具が示されている。 In Patent Document 1, two writing bodies by combining a black ballpoint pen and a red ballpoint pen are accommodated in one shaft, and each writing is performed by rotating the upper shaft tube (rear shaft) with respect to the lower shaft tube (front shaft). It is shown that the writing tip portion of the body can be alternately and selectively projected from the shaft tip. Further, in this case, the upper shaft cylinder is not allowed to shift relative to the lower shaft cylinder.
In Patent Document 2, two writing bodies with a combination of a mechanical pencil and a ballpoint pen are accommodated on one shaft, and the writing tip portion of each writing body is alternately turned from the shaft tip by rotating the cap (rear shaft). In addition, there is shown a dual-type writing instrument that can be selectively projected and retracted, and the core can be extended by moving the cap with respect to the front axis when the mechanical pencil protrudes.

また、朱肉等に付着させる必要のない印鑑を軸の後端に装着し、キャップ後端開口部に開閉自在な蓋を設け、蓋部に指を触れること無く、未使用時に蓋で印字面を被覆し、捺印時に印字面が開放されるように操作できる印鑑付筆記具が公知となっている。
特許文献３には、複数の軸方向のガイド溝１を設けたガイド筒２の先端部を先軸３の後端部に接合し、ガイド筒２の各ガイド溝１にシヤープペンシルのユニツト４等の各種の被繰出体の後端にそれぞれ取付けたカム従動コマ５を軸方向に摺動自在に遊嵌し、ガイド筒２の外周部に上記のカム従動コマ５と接触して軸方向に変位させることのできるカム斜面６を内面部に設けると共に後端部に印鑑７を装着した後軸８を円周方向に所要角度回動自在に被装し、後軸８の外周部にキヤツプ９を円周方向の回動が一体的で軸方向には摺動自在に被装し、キヤツプ９の後端部にキヤツプ９の軸方向前方への摺動により印鑑７における印字体カバー１０の周縁角部にその内面を当接して押圧されることによりキヤツプ後端口１１を開口すると共にキヤツプ９の軸方向後方への摺動により印字体カバー１０から離れてキヤツプ９との間に設けたバネ１２の作用によりキヤツプ後端口１１を閉口する蓋１３を回動自在に取付け、後軸８に対しキヤツプ９を軸方向に摺動させて上記の蓋１３が開き且つ閉じる位置においてそれぞれキヤツプ９を後軸８に固定するロツク装置１４をキヤツプ９と後軸８との間に設けたことを特徴とする印鑑付複式筆記具が示されている。
また特許文献４には、軸の後端にインクを含浸可能な無数の連続気孔を有する多孔性印材よりなる印字体５を使用した印鑑４をその印字面が露出する状態に取付け、軸の後端外周部に頂端を開口したキャップ９を軸方向に摺動自在に嵌着し、キャップ９の頂端開口部１１にキャップ９を軸に対し後退させた状態でその開口部１１をばね１３の作用によって自動的に閉塞して前記印鑑４の印字面を隠蔽すると共にキャップ９を軸に対し前進させたときにその内面側端部が印鑑４におけるカバー６の後端周縁部の一部により押圧されて擺動することによりキャップ９の頂端開口部１１を開放して同部から印鑑４を後方へ突出させる蓋体１２を装着し、前端にキャップ９の長孔１９からキャップ内部に没入可能な係合突起１７を設けると共に後端にクリップ１４の窓孔１５からクリップ１４の外側へコイルばね２０により付勢されて貫出する押釦１８を設けたレバー１６をクリップ１４の内側へ配してその略中央部を回動自在に軸着し、また、キャップ内部の軸の側面部における前後２箇所にそれぞれキャップ９が前方へ摺動してキャップ９の頂端開口部１１から印鑑４が突出した状態ときと、キャップ９が後方へ摺動してキャップ９の頂端開口部１１が蓋体１２により閉塞されたときにそれぞれ上記の係合突起１７が嵌入して係止する係合溝２１′、２１を設けたことを特徴とする印鑑付複式筆記具が示されている。 In addition, a seal that does not need to be attached to vermilion or the like is attached to the rear end of the shaft, and an openable / closable lid is provided at the cap's rear end opening. A writing instrument with a seal that can be coated and operated so that the printing surface is opened at the time of stamping is known.
In Patent Document 3, a tip end portion of a guide tube 2 provided with a plurality of axial guide grooves 1 is joined to a rear end portion of a front shaft 3, and a unit 4 of a shear pencil is fitted in each guide groove 1 of the guide tube 2. The cam followers 5 attached to the rear ends of the various to-be-delivered members are loosely fitted in the axial direction so as to be freely slidable. The cam followers 5 come into contact with the outer periphery of the guide tube 2 and are displaced in the axial direction. A cam slope 6 that can be moved is provided on the inner surface portion, and a seal 7 is mounted on the rear end portion thereof, and a rear shaft 8 is rotatably mounted in a circumferential direction at a required angle, and a cap 9 is provided on the outer peripheral portion of the rear shaft 8. The circumferential rotation of the print cover 10 in the seal 7 is carried out by sliding the cap 9 in the axial direction forward by sliding the cap 9 in the axial direction forward. The inner end of the cap 11 is opened and pressed by pressing the inner surface of the cap against the portion. A lid 13 that closes the rear end 11 of the cap is rotatably attached to the rear shaft 8 by the action of a spring 12 that is separated from the printing body cover 10 by sliding rearward in the axial direction 9 and between the cap 9. On the other hand, a lock device 14 is provided between the cap 9 and the rear shaft 8 so as to fix the cap 9 to the rear shaft 8 at a position where the cap 13 is slid in the axial direction and the lid 13 is opened and closed. A double writing instrument with a seal is shown.
In Patent Document 4, a seal 4 using a printing body 5 made of a porous printing material having countless continuous pores that can be impregnated with ink at the rear end of the shaft is attached in a state where the printing surface is exposed, A cap 9 having an open top end is fitted to the outer periphery of the end so as to be slidable in the axial direction, and the cap 11 is retreated with respect to the shaft in the top end opening 11 of the cap 9 so that the opening 11 acts on the spring 13. When the cap 9 is moved forward with respect to the shaft, the inner end of the seal 4 is pressed by a part of the peripheral edge of the rear end of the cover 6. The lid 12 that opens the top end opening 11 of the cap 9 and protrudes the seal 4 rearward from the cap 9 is attached by swinging the cap 9 and the front end is engaged with the cap 9 through the long hole 19 of the cap 9. Protrusion 17 is provided at the rear end A lever 16 provided with a push button 18 urged by a coil spring 20 from the window hole 15 of the lip 14 to the outside of the clip 14 is disposed on the inside of the clip 14 so that its substantially central portion can be pivotally mounted. In addition, when the cap 9 slides forward and the seal 4 protrudes from the top end opening 11 of the cap 9 at two front and rear positions on the side surface of the shaft inside the cap, the cap 9 slides backward. When the top end opening 11 of the cap 9 is closed by the lid body 12, engagement grooves 21 'and 21 are provided for engaging and locking the engagement protrusions 17 respectively. A double writing instrument is shown.

シャープペンシル筆記体を搭載した複式筆記具は、芯を繰り出すために先軸に対して後軸を軸推移する必要があるが、ボールペン筆記体のみを搭載した複式筆記具は、先軸に対して後軸が軸推移しない方が使い勝手が良くコスト的にも優位性がある。従って、通常そのように設けられている。そのために、前記２種類の複式筆記具を構成する主要部品のいくつかは別々のものとなり、別々の金型、部品生産、組立て工程が必要となり、コスト高となる要因となっている。また、組上がった製品は容易に変更できないので、一方の製品が在庫余剰となったり、他方が在庫無しとなったりして、迅速な納期に対応できない等の問題が存在する。
そこで、本発明の複式筆記具は、部品の互換性を図ると共に、芯を繰り出すためのノック作動を必要とするシャープペンシル筆記体を含む複式筆記具とノック作動を必要としないボールペン等筆記体のみの複式筆記具との仕様の切り替えを容易に可能とし、必要な製品を安価に提供可能とし、且つ迅速な納期に対応できることを課題とする。 A compound writing instrument equipped with a mechanical pencil must move the rear axis with respect to the front axis in order to feed out the core, while a compound writing instrument equipped with only a ballpoint pen has a rear axis relative to the front axis. If the axis does not change, it is easier to use and has an advantage in terms of cost. Therefore, it is usually provided as such. For this reason, some of the main parts constituting the two types of dual writing instruments become separate, and separate molds, parts production, and assembly processes are required, which is a factor that increases costs. In addition, since the assembled product cannot be easily changed, there is a problem that one product is in excess of inventory and the other is out of stock, so that it is not possible to respond to quick delivery.
Therefore, the dual writing instrument of the present invention is a compound writing instrument including a pencil writing instrument including a mechanical pencil writing instrument that requires a knock operation for feeding out the core and a writing instrument such as a ball pen that does not require a knock operation. It is an object of the present invention to make it possible to easily switch specifications with a writing instrument, to provide necessary products at low cost, and to respond to quick delivery.

本発明は、上記課題を達成するために以下の構成を有する。
請求項１に記載の発明に係る複式筆記具は、中軸がガイド筒に止着され、ガイド筒の前端を先軸の後端に接合したときに、先軸の後端が中軸の前端に当接して中軸がガイド筒に固定され、複数の軸方向のガイド溝を設けたガイド筒の各ガイド溝に、ボールペン等筆記体の後端にそれぞれ摺動コマを取付け、ガイド溝の前方と摺動コマとの間にリターンスプリングを敷設すると共に摺動コマをガイド筒の後方に附勢して、ガイド溝に対して摺動コマを軸方向に摺動自在に遊嵌し、ガイド筒の周面部に摺動コマと接触して摺動コマを軸方向に摺動可能とするカム斜面を有した円筒カムを後軸内面に一体に設け、円筒カムをガイド筒に対して円周方向に所要角度回動自在で後方に抜止め固定し、中軸に対して後軸を回動して筆記体の先端部が軸先から突出した状態でガイド筒に対して円筒カムが軸推移可能、筆記体の先端部が軸先から没入した状態で軸推移不可となされ、一方、中軸の後端と後軸の前端において、何れか一方に軸方向に変位する凹部と、他方に軸方向に変位する凸部を設け、筆記体の先端部が突出する位置において、前記凹部と凸部が対面する位置で中軸に対して後軸が軸推移可能、また、凹部と凸部の対面が外れた位置で中軸に対して後軸が軸推移不可となり、ガイド筒に対する中軸の円周方向の取付け位置を変えて止着することで、筆記体の先端部が突出する位置のすべてが軸推移可能または軸推移不可、または筆記体の先端部が突出する位置の一箇所で軸推移可能、他の箇所で軸推移不可となるように設定できることを特徴とする。 The present invention has the following configuration in order to achieve the above-described problems.
In the dual writing instrument according to the first aspect of the present invention, when the middle shaft is fixed to the guide tube and the front end of the guide tube is joined to the rear end of the front shaft, the rear end of the front shaft abuts on the front end of the middle shaft. The center shaft is fixed to the guide tube, and a sliding piece is attached to each guide groove of the guide tube provided with a plurality of axial guide grooves at the rear end of the writing body such as a ballpoint pen. A return spring is laid between the guide cylinder and the sliding piece is urged to the rear of the guide cylinder, and the sliding piece is slidably fitted in the axial direction with respect to the guide groove. A cylindrical cam with a cam slant surface that comes into contact with the sliding piece and allows the sliding piece to slide in the axial direction is provided integrally on the inner surface of the rear shaft, and the cylindrical cam is rotated at a required angle in the circumferential direction with respect to the guide cylinder. It is movable and secured to the rear, and the rear shaft is rotated with respect to the middle shaft. The cylindrical cam can change the axis with respect to the guide cylinder in the protruding state, and the axis cannot be changed when the tip of the writing body is recessed from the tip, while either the rear end of the middle shaft or the front end of the rear shaft A concave portion that is displaced in the axial direction is provided on one side, and a convex portion that is displaced in the axial direction is provided on the other side, and at the position where the tip portion of the writing body protrudes, the rear axis is located at the position where the concave portion and the convex portion face each other. The axis can be changed, and the rear axis is not allowed to change with respect to the middle axis at the position where the concavity and convexity are separated from each other, and the center axis is attached to the guide tube by changing the mounting position in the circumferential direction. It can be set so that all the positions where the tip of the body protrudes can be changed or cannot be changed, or can be changed at one place where the tip of the writing body protrudes, and cannot be changed at other places. It is characterized by.

請求項２に記載の発明に係る複式筆記具は、請求項１に記載の複式筆記具に於いて、筆記体の先端部が突出する位置において、中軸に対して後軸が軸推移可能となるガイド溝にシヤープペンシル筆記体が配設されてなる。 The dual writing instrument according to the invention of claim 2 is a guide groove in which the rear shaft is capable of shifting relative to the middle shaft at the position where the tip of the writing body protrudes in the dual writing tool of claim 1. And a sheer pencil pencil is arranged.

本発明の複式筆記具は、中軸がガイド筒に止着され、ガイド筒の前端を先軸の後端に接合したときに、先軸の後端が中軸の前端に当接して中軸がガイド筒に固定され、また、中軸の後端と後軸の前端において、何れか一方に軸方向に変位する凹部と、他方に軸方向に変位する凸部を設け、筆記体の先端部が突出する位置において、前記凹部と凸部が対面する位置で中軸に対して後軸が軸推移可能、また、凹部と凸部の対面が外れた位置で中軸に対して後軸が軸推移不可となり、ガイド筒に対する中軸の円周方向の取付け位置を変えて止着することで、筆記体の先端部が突出する位置のすべてが軸推移可能または軸推移不可、または筆記体の先端部が突出する位置の一箇所で軸推移可能、他の箇所で軸推移不可となるように設定できるので、部品の互換性が図れると共に、芯を繰り出すためのノック作動を必要とするシャープペンシル筆記体を含む複式筆記具とノック作動を必要としないボールペン等筆記体のみの複式筆記具との仕様の切り替えが容易に可能となり、必要な製品が安価に提供可能であり、且つ迅速な納期に対応可能となる。
しかも、ガイド筒に対する中軸の取付け位置を変えて止着する作業は、手作業で容易になし得る程度もので、ユーザーが好みに合わせて容易に切り替えることが可能となるなど商品として拡張性のある効果が期待できる。 In the dual writing instrument of the present invention, when the middle shaft is fixed to the guide tube and the front end of the guide tube is joined to the rear end of the front shaft, the rear end of the front shaft contacts the front end of the middle shaft, and the middle shaft becomes the guide tube. At the position where the leading end of the writing body protrudes, with a concave portion that is displaced in the axial direction on one side and a convex portion that is displaced in the axial direction on the other side at the rear end of the middle shaft and the front end of the rear shaft. The rear shaft can be shifted relative to the middle shaft at the position where the concave portion and the convex portion face each other, and the rear shaft can not be shifted relative to the middle shaft at the position where the concave portion and the convex portion are separated from each other. By changing the mounting position of the central shaft in the circumferential direction and fixing it, all the positions where the tip of the cursive body protrudes can be shifted or cannot be shifted, or one position where the tip of the cursive body protrudes The axis can be changed with, and the axis can be changed at other locations. Can be easily interchanged, and the specifications can be easily switched between a dual-type writing instrument that includes a mechanical pencil writing instrument that requires a knock operation to feed out the lead and a dual-type writing instrument that uses only a writing instrument such as a ballpoint pen that does not require a knock operation. Thus, necessary products can be provided at a low cost, and quick delivery is possible.
In addition, the operation of changing the attachment position of the central shaft with respect to the guide tube and fixing it is such that it can be easily performed manually, and can be easily switched according to the user's preference. The effect can be expected.

以下、図面に基づき本発明の複式筆記具について詳細な構成を説明する。本発明の実施形態は印鑑付複式筆記具で提案されている。
まずガイド筒４は図１２乃至図１５、さらに図２に示されている。
図に示すようにガイド筒４は、前方に筒部４ａ、中間に軸部４ｂ、後端に軸部４ｂの外径より適宜小径とした軸部４ｃが一体に形成され、軸部４ｂの周側面の２箇所に軸方向のガイド溝４ｍ、４ｎが設けられ、筒部４ａの前端側周面に螺子部４ｄが形成され、その螺子部４ｄが後述する先軸３の後端内周面に形成された螺子部と螺合により着脱可能に接合可能となされている。
また、筒部４ａの螺子部４ｄの適宜後方に円周状の段部４ｅが形成され、その段部４ｅのやや後方に所要箇所で小リブ状の係止突部４ｆが形成されて、さらに前記段部４ｅから後方の周面所要箇所で軸方向適宜長さの縦溝４ｇが形成されている。
また、筒部４ａと軸部４ｂの臨界部周面に全周に至らない範囲の周状の凹部４ｈが形成され、さらに軸部４ｂと軸部４ｃの臨界において、ガイド溝４ｍ、４ｎに対する一方側周壁後端に段部４ｌと、他方側周壁後端に段部４ｋが形成され、段部４ｌの位置に対して段部４ｋの位置は適宜前方に設けられ、ガイド溝４ｍ、４ｎの段部４ｌが位置する側の壁面が後述する円筒カム５の鍔部側面が当接する当接部４ｐ、４ｒとなされている。
また、軸部４ｃの周面には貫通した軸方向略矩形状の窓部４ｉが設けられ、その窓部４ｉを挟んだ両側の周面に前端側に段部を有する傘状の係止段部４ｊが形成されている。
また、前記凹部４ｈに図１２に示されるように一箇所開口した円周状のガイドリング２１が弾性変形を利用して嵌装される。尚、凹部４ｈはガイドリング２１をぴったり収容する形状となされており、ガイドリングの内面がガイド溝４ｍ、４ｎの開放側を覆う状態となる。上記構成に関わる作用は後述する。また、図２には、前記縦溝４ｇに対して３箇所にずらして設けられた縦溝４ｓが示されている。このことは本発明の要旨に関わる内容であり後述する。
上述したガイド筒は、１８０°で対向する２箇所のガイド溝を有し、２本の筆記体が搭載されるが、一箇所のガイド溝を中心として略１２０°離れた２箇所にそれぞれガイド溝を形成して、３本の筆記体を搭載することも可能であり、基本的には上述したガイド筒と同様の設計手段で設けることが可能である。 Hereinafter, a detailed configuration of the dual writing instrument of the present invention will be described with reference to the drawings. An embodiment of the present invention is proposed with a dual writing instrument with a seal.
First, the guide cylinder 4 is shown in FIGS. 12 to 15 and FIG.
As shown in the figure, the guide tube 4 is integrally formed with a tube portion 4a at the front, a shaft portion 4b at the middle, and a shaft portion 4c having a smaller diameter than the outer diameter of the shaft portion 4b at the rear end. Axial guide grooves 4m and 4n are provided at two locations on the side surface, and a screw portion 4d is formed on the front end side peripheral surface of the cylindrical portion 4a. The screw portion 4d is formed on a rear end inner peripheral surface of the front shaft 3 which will be described later. It can be detachably joined by screwing with the formed screw portion.
Further, a circumferential step 4e is formed appropriately behind the screw portion 4d of the cylindrical portion 4a, and a small rib-like locking projection 4f is formed at a required position slightly behind the step 4e. A vertical groove 4g having an appropriate length in the axial direction is formed at a required position on the peripheral surface behind the step 4e.
Further, circumferential recesses 4h that do not reach the entire circumference are formed on the peripheral surfaces of the critical portions of the cylindrical portion 4a and the shaft portion 4b, and one of the guide grooves 4m and 4n is critical in the criticality of the shaft portions 4b and 4c. A step 4l is formed at the rear end of the side peripheral wall, and a step 4k is formed at the rear end of the other side peripheral wall. The position of the step 4k is appropriately provided in front of the position of the step 41, and the steps of the guide grooves 4m, 4n are provided. The wall surface on the side where the portion 4l is located is the contact portions 4p and 4r with which the flange side surface of the cylindrical cam 5 to be described later contacts.
In addition, a substantially rectangular window portion 4i that penetrates in the axial direction is provided on the peripheral surface of the shaft portion 4c, and an umbrella-shaped locking step having step portions on the front end side on both peripheral surfaces sandwiching the window portion 4i. Part 4j is formed.
Further, as shown in FIG. 12, a circumferential guide ring 21 opened at one place is fitted into the recess 4h by utilizing elastic deformation. The recess 4h has a shape that fits the guide ring 21 so that the inner surface of the guide ring covers the open side of the guide grooves 4m and 4n. The operation related to the above configuration will be described later. Further, FIG. 2 shows vertical grooves 4s provided at three positions shifted from the vertical grooves 4g. This is a content related to the gist of the present invention and will be described later.
The above-described guide cylinder has two guide grooves facing each other at 180 °, and two writing bodies are mounted on the guide tube, but the guide grooves are respectively provided at two locations approximately 120 ° apart from each other. It is also possible to mount three cursive bodies, and basically, it can be provided by the same design means as the guide cylinder described above.

円筒カム５は図１７乃至図１９に示されている。図に示すように円筒カム５は、前方に筒部５ａと後方に段部５ｉを介してやや小径となした筒部５ｅで形成され、筒部５ａの前面側には変位するカム斜面５ｂが円周方向の所要範囲に設けられ、カム斜面５ｂの最前端位置には摺動コマ１４のカム状凸部の後端と係合する切欠５ｃが設けられている。
また、カム斜面５ｂの後方で筒部５ａの内周面に内径方向に突出した鍔部５ｈが形成され、鍔部５ｈの後端に周状の段部５ｊが形成されると共に、筒部５ａの周面所要箇所に軸方向略矩形状の窓部５ｄが穿設され、その窓部５ｄの後端位置で内周部に周状の段部５ｋが形成され、さらに、仕切り部を経て筒部５ｅの周面所要箇所に軸方向略矩形状の窓部５ｆが穿設されて、更にまた、筒部５ｅの周面の所要箇所に後述する印鑑１７を着脱可能に止着するための係合突部５ｇが設けられている。 The cylindrical cam 5 is shown in FIGS. As shown in the figure, the cylindrical cam 5 is formed of a cylindrical portion 5e having a slightly smaller diameter through a cylindrical portion 5a at the front and a stepped portion 5i at the rear, and a cam slope 5b that is displaced on the front side of the cylindrical portion 5a. A notch 5c that is provided in a required range in the circumferential direction and engages with the rear end of the cam-like convex portion of the sliding piece 14 is provided at the foremost end position of the cam slope 5b.
Further, a flange portion 5h protruding in the inner diameter direction is formed on the inner peripheral surface of the cylindrical portion 5a behind the cam inclined surface 5b, a circumferential step portion 5j is formed at the rear end of the flange portion 5h, and the cylindrical portion 5a. A substantially rectangular window portion 5d in the axial direction is perforated at a required portion of the peripheral surface of the outer peripheral surface, and a circumferential step portion 5k is formed on the inner peripheral portion at the rear end position of the window portion 5d. A window portion 5f having a substantially rectangular shape in the axial direction is formed at a required position on the peripheral surface of the portion 5e, and a seal 17 to be described later is removably attached to a required position on the peripheral surface of the cylindrical portion 5e. A mating protrusion 5g is provided.

上述したガイド筒４のガイド溝４ｍ、４ｎに、ボールペン等筆記体１６、１６がその後端にそれぞれ摺動コマ１４、１４を取付けて配設され、ガイド溝の前端と摺動コマの前端側との間にリターンスプリング１５、１５を敷設すると共に、摺動コマ１４、１４をガイド筒４の後方に附勢して、ガイド溝４ｍ、４ｎに対して摺動コマ１４、１４を軸方向に摺動自在に遊嵌し、ガイド筒４の周面部に摺動コマ１４、１４のカム状凸部とカム斜面５ｂを接触させた状態に円筒カム５を装着して、ガイド筒４の係止段部４ｊに円筒カム５の段部５ｊを相互間の弾性変形を利用して係合させ、ガイド筒４に対して円筒カム５が後方に抜止め固定されると共に、円筒カムの鍔部５ｈの側面がガイド筒４の当接部４ｐ、４ｒに当接する角度範囲で円周方向に回動自在となされて、ガイド筒４に対して円筒カム５を回動したときにボールペン等筆記体１６、１６の先端部が軸先から交互に出没可能となる。また、上述したようにガイド筒４にガイドリング２１を止着したことによって、ボールペン等筆記体１６が外側にややこじられても筆記体やリターンスプリング１５がガイド溝から外れる等の問題が無く、安定した組立て作業を行うことができる。 In the guide grooves 4m and 4n of the guide cylinder 4 described above, writing bodies 16 and 16 such as ballpoint pens are respectively provided with sliding pieces 14 and 14 attached to the rear ends thereof, and the front end of the guide groove and the front end side of the sliding piece, Return springs 15 and 15 are laid between them, and the sliding pieces 14 and 14 are urged rearward of the guide cylinder 4 so that the sliding pieces 14 and 14 slide in the axial direction with respect to the guide grooves 4m and 4n. The cylindrical cam 5 is mounted in a state where it is freely movably fitted, and the cam-like convex portions of the sliding pieces 14 and 14 and the cam inclined surface 5 b are in contact with the peripheral surface portion of the guide tube 4. The step portion 5j of the cylindrical cam 5 is engaged with the portion 4j by utilizing elastic deformation between the cylindrical cam 5 and the cylindrical cam 5 is secured to the guide tube 4 in the rearward direction and is fixed to the flange portion 5h of the cylindrical cam. In the circumferential direction in the angular range in which the side surface contacts the contact portions 4p, 4r of the guide tube 4 Been made freely moving the tip of the ballpoint pen such as cursive 16,16 is retractable from the axis away alternately when rotating the cylindrical cam 5 relative to the guide tube 4. Further, by fixing the guide ring 21 to the guide tube 4 as described above, there is no problem such as the writing body or the return spring 15 coming off the guide groove even if the writing body 16 such as a ballpoint pen is slightly twisted outside. Stable assembly work can be performed.

後軸１は図７乃至図１０及び図１、図３、図４に示されている。図に示すように後軸１は、上面が平坦となった略断面円形状の筒体で、円周状の周面と平坦端部とを接続しやや肉厚となった部位の両側面に軸方向に沿った摺動溝１ａが形成され、また、平坦となった後方部に略矩形状に窪んだ凹部Ａ１ｂと、そこから所定距離離れた箇所に同様に略矩形状に窪んだ凹部Ｂ１ｃが形成されている。また摺動溝１ａは、後軸１の前後端近傍で両端部が閉塞した状態に設けられ、後端部１ｆ後方の所定位置に後端側に段部と前方側に斜面を有したストッパー１ｅが形成されている。また、内面部の後端側寄りの所要箇所に軸方向略矩形状で内径側に突出した係止突部１ｄが形成されている。
また、本発明の実施形態において、後軸１の前端には図３に示す凸部１ｇ、１ｈまたは図４に示す凸部１ｉ、１ｊ、１ｋが形成されてなる。このことは本発明の要旨であり、後述する。 The rear shaft 1 is shown in FIGS. 7 to 10 and FIGS. As shown in the figure, the rear shaft 1 is a cylindrical body having a substantially circular cross-section with a flat upper surface, and is connected to both side surfaces of the slightly thickened portion connecting the circumferential surface and the flat end. A sliding groove 1a along the axial direction is formed, and a recessed portion A1b that is recessed in a substantially rectangular shape in the flat rear portion, and a recessed portion B1c that is also recessed in a substantially rectangular shape at a predetermined distance from the recessed portion Is formed. The sliding groove 1a is provided in a state where both ends are closed in the vicinity of the front and rear ends of the rear shaft 1, and a stopper 1e having a stepped portion on the rear end side and a slope on the front side at a predetermined position behind the rear end portion 1f. Is formed. In addition, a locking projection 1d that is substantially rectangular in the axial direction and protrudes toward the inner diameter side is formed at a required location near the rear end side of the inner surface.
In the embodiment of the present invention, convex portions 1g, 1h shown in FIG. 3 or convex portions 1i, 1j, 1k shown in FIG. This is the gist of the present invention and will be described later.

スライドキャップ６は図２１乃至図２４に示されている。
図に示すようにスライドキャップ６は、内孔の上面が平坦となった略断面円形状の筒体で、その平坦部の外面は平坦面沿って下駄状のクリップ取付け台６ｂが一体に形成され、下駄状部位の両側面には２箇所で軸支部６ｊと６ｋが設けられ、それぞれの軸支部の中心に孔６ｃと６ｄが貫通して設けられて、さらに、両側面にクリップ２２の取付け基部の内側面に設けられた折曲げ部を係合させて固着可能とする係止溝６ｈが形成されている。また、下駄状のクリップ取付け台６ｂの中央には仕切板状の座６ｅが設けられており、さらに、その座６ｅの中央部に略円周状の窪みが形成されるように囲い部６ｆが形成されている。また、内孔の内周面に軸方向に沿って、内径側に略水平に突出したリブ６ｇが形成されている。
また、蓋７が取付けられる開口部側には、蓋の側面に形成されたはめ込み形状７ｃと要所で軽度に係合するはめ込み形状６ｉが形成されて、蓋７の組立て作業が安定して行えるように配慮されている。 The slide cap 6 is shown in FIGS.
As shown in the figure, the slide cap 6 is a cylindrical body having a substantially cross-sectional circular shape in which the upper surface of the inner hole is flat, and the outer surface of the flat portion is integrally formed with a clog-like clip mounting base 6b along the flat surface. In addition, shaft support portions 6j and 6k are provided at two positions on both side surfaces of the clog-like portion, holes 6c and 6d are provided through the centers of the respective shaft support portions, and further, clip 22 mounting bases are provided on both side surfaces. An engaging groove 6h is formed that can be fixed by engaging a bent portion provided on the inner surface of the inner surface. Further, a partition plate-like seat 6e is provided at the center of the clog-like clip mounting base 6b, and a surrounding portion 6f is formed so that a substantially circumferential recess is formed at the center of the seat 6e. Is formed. Further, a rib 6g is formed on the inner peripheral surface of the inner hole along the axial direction so as to protrude substantially horizontally toward the inner diameter side.
In addition, a fitting shape 7c formed on the side surface of the lid and a fitting shape 6i that is lightly engaged at important points are formed on the opening side to which the lid 7 is attached, so that the assembly work of the lid 7 can be stably performed. So that it is considered.

スライドキャップ６の後端開口部から後軸１の前端が挿入され、スライドキャップの筒体６ａの内面に形成されたリブ６ｇが後軸１のストパー１ｅを弾性的に乗り越えて摺動溝１ａに嵌入し、リブ６ｇの前後端が後軸の摺動溝１ａのストッパー１ｅと後端部１ｆに当接する間隔でスライドする。 The front end of the rear shaft 1 is inserted from the rear end opening of the slide cap 6, and the rib 6g formed on the inner surface of the slide cap cylinder 6a elastically climbs over the stopper 1e of the rear shaft 1 to the sliding groove 1a. The front and rear ends of the rib 6g slide at intervals that contact the stopper 1e and the rear end 1f of the sliding groove 1a of the rear shaft.

また、蓋７は図２５及び図２６に示されている。また、係止レバー１１は図２７に示されている。
蓋７の軸支部７ｂの凹所７ｄに捻りバネ８の捲線部を納め、捻りバネ８の一端の軸部を蓋側に係止し、他端の軸部をスライドキャップ６の座６ｅに係止させた状態で、蓋７の軸支部７ｂをスライドキャップの軸支部６ｊに据え、蓋７をスライドキャップの後端開口部に嵌め込んで、スライドキャップの孔６ｃと蓋の孔７ａを貫通してピン９が取付けられ、また、スライドキャップの座６ｅの中央に形成された略円周状の窪みにコイル状のスプリング１３の一端が設置され、他端が釦１１ａの内面に形成された凹部に係止されると共に、係止レバー１１の軸支部１１ｂがスライドキャップの軸支部６ｋに据え、スライドキャップの孔６ｄと係止レバー１１の孔１１ｅを貫通してピン１２が取付けられ、クリップ２２がスライドキャップのクリップ取付け台６ｂの外周部に取付けられ、係止レバーの釦１１ａがクリップ基部の上面に穿設された孔部から突出して設けられている。
ロック装置１０は、係止レバーの釦１１ａをスプリング１３の附勢力に抗して押圧したときに、係止レバーのアーム１１ｃの前端に設けられた凸状の係止部１１ｄが後軸１に設けられた２箇所の凹部Ａ１ｂと凹部Ｂ１ｃの何れかとの係止状態を解除し、釦１１ａを押圧しないときに、凸状の係止部１１ｄが凹部Ａ１ｂと凹部Ｂ１ｃの何れかと係止状態となる装置である。 The lid 7 is shown in FIGS. 25 and 26. The locking lever 11 is shown in FIG.
The winding portion of the torsion spring 8 is placed in the recess 7d of the shaft support portion 7b of the lid 7, the shaft portion at one end of the torsion spring 8 is locked to the lid side, and the shaft portion at the other end is engaged with the seat 6e of the slide cap 6. In a stopped state, the shaft support portion 7b of the lid 7 is placed on the shaft support portion 6j of the slide cap, the cover 7 is fitted into the rear end opening of the slide cap, and passes through the hole 6c of the slide cap and the hole 7a of the lid. A pin 9 is attached, and one end of a coiled spring 13 is installed in a substantially circumferential recess formed in the center of the seat 6e of the slide cap, and the other end is a recess formed on the inner surface of the button 11a. , The shaft support portion 11b of the lock lever 11 is mounted on the shaft support portion 6k of the slide cap, the pin 12 is attached through the hole 6d of the slide cap and the hole 11e of the lock lever 11, and the clip 22 Click on the slide cap. Attached to the outer periphery of the mount 6b, button 11a of the locking lever is provided to protrude from the hole drilled in the top surface of the clip base.
When the locking device 10 presses the locking lever button 11a against the urging force of the spring 13, the convex locking portion 11d provided at the front end of the locking lever arm 11c is attached to the rear shaft 1. When the locking state between the two provided recesses A1b and B1c is released and the button 11a is not pressed, the protruding locking portion 11d is locked with either the recess A1b or the recess B1c. It is a device.

段落１１で説明した状態から、ガイド筒４に組み付けられた円筒カム５は、後軸１の内孔部に挿入され、後軸の係止突部１ｄは円筒カム５の略矩形状の窓部５ｄに弾性的に容易に無理なく係合し、且つ強固に係合される。即ち、図１１に示されるように係止突部１ｄの係合開始部に斜面などのアプローチが配慮されている。 From the state described in paragraph 11, the cylindrical cam 5 assembled to the guide cylinder 4 is inserted into the inner hole portion of the rear shaft 1, and the locking projection 1 d of the rear shaft is a substantially rectangular window portion of the cylindrical cam 5. 5d is easily and elastically engaged easily and firmly. That is, as shown in FIG. 11, an approach such as an inclined surface is considered at the engagement start portion of the locking projection 1d.

図２０及び図１、図３、図４は中軸２を示している。図に示すように中軸２は、内周面に周状に突出した凸部２ａが形成され、さらに、その後方に所要箇所で軸方向のリブ２ｂが形成されている。
中軸２は、ガイド筒４の筒部４ａの前端から被装され、リブ２ｂがガイド筒の縦溝４ｇまたは上述した縦溝４ｓに嵌挿すると共に凸部２ａがガイド筒の係止突部４ｆを弾性変形により乗り越えて段部４ｅと係止突部４ｆとの間に係止されて止着される。
また、本発明の実施形態である複式筆記具は、中軸２の後端に図３に示す凹部２ｃ、２ｄ、２ｅ、２ｆまたは図４に示す凹部２ｈ、２ｉ、２ｊ、２ｋ、２ｍが形成されている。このことは本発明の要旨なので後述する。 20, 1, 3, and 4 show the center shaft 2. As shown in the drawing, the central shaft 2 has a convex portion 2a protruding in a circumferential shape on the inner peripheral surface, and further, an axial rib 2b is formed at a required position behind the central portion.
The middle shaft 2 is mounted from the front end of the tube portion 4a of the guide tube 4. The rib 2b is inserted into the vertical groove 4g of the guide tube or the above-described vertical groove 4s, and the convex portion 2a is the locking protrusion 4f of the guide tube. Is overcome by elastic deformation and is locked between the stepped portion 4e and the locking projection 4f and fixed.
Further, in the dual writing instrument according to the embodiment of the present invention, the recess 2c, 2d, 2e, 2f shown in FIG. 3 or the recesses 2h, 2i, 2j, 2k, 2m shown in FIG. Yes. This is the gist of the present invention and will be described later.

先軸３は、図５に示すように口先部３ａ後方の周面にゴム等の弾性体よりなるグリップ２０が装着され、後端内周面に形成された螺子部３ｂにガイド筒の螺子部４ｄが螺合され、先軸３及びグリップ２０の後端が前記中軸２の前端に当接した状態で接合される。
この状態で中軸２は、ガイド筒４に対して軸方向に強固に固定される。
また、グリップ２０は、先軸３の周面とグリップの内周面との間に係合部を設けて回転方向、軸方向にずれないように設けたり、また、グリップを先軸の周面に装着しないで二重成形等の手段で一体に設けることも可能である。 As shown in FIG. 5, the front shaft 3 has a grip 20 made of an elastic material such as rubber on the peripheral surface behind the mouth portion 3a, and a screw portion 3b formed on the inner peripheral surface of the rear end. 4d is screwed and joined with the front shaft 3 and the rear end of the grip 20 in contact with the front end of the middle shaft 2.
In this state, the middle shaft 2 is firmly fixed to the guide tube 4 in the axial direction.
The grip 20 is provided with an engaging portion between the peripheral surface of the front shaft 3 and the inner peripheral surface of the grip so that the grip 20 does not shift in the rotational direction and the axial direction. It is also possible to provide it integrally by means of double molding or the like without being mounted on.

また、円筒カム５後端の筒部５ｅの周面に印鑑１７の取付け台１８に設けられた筒部内周面が着脱可能に係合され、固定される。
印鑑１７は、インクを吸蔵できるスポンジゴム等の無数の連続気孔を有する多孔性印材により形成された印字体１９と、印字体１９の側部周面を被覆すると共に後端の開口部から印字面１９ａを突出させる印字体カバー２０と、その印字体カバー２０を固定する取付け台１８によって構成されている。 Further, the inner peripheral surface of the cylindrical portion provided on the mounting base 18 of the seal stamp 17 is detachably engaged and fixed to the peripheral surface of the cylindrical portion 5e at the rear end of the cylindrical cam 5.
The seal 17 covers the printing body 19 formed of a porous printing material having countless continuous pores such as sponge rubber capable of occluding ink, the side surface of the printing body 19 and the printing surface from the opening at the rear end. A printing body cover 20 that projects 19a and a mounting base 18 that fixes the printing body cover 20 are configured.

以上によって、本発明の実施形態である複式筆記具（印鑑付複式筆記具）が組立てられる。尚、実施形態の複式筆記具は、基本的には道具を使うことなく容易に手で組立てられる特徴があり、生産都合に合わせて部分的に機械組立てと併用して合理的に組立てることが可能であり、組立て手順は上述した手順に限らず変更することが可能である。 As described above, the dual-type writing instrument (duplicate writing instrument with seal) according to the embodiment of the present invention is assembled. In addition, the dual-type writing instrument of the embodiment basically has a feature that it can be easily assembled by hand without using tools, and can be rationally assembled partially in combination with mechanical assembly according to production convenience. Yes, the assembly procedure is not limited to the procedure described above, and can be changed.

（作用）
図５は蓋７がスライドキャップの後端口を閉じた印鑑の未使用状態を示しており、蓋７はスライドキヤツプ６との間に取付けられた捻りバネ８によつてスライドキャップ６の後端口を塞ぐ方向に付勢されている。この状態から係止レバー１１の釦１１ａを押圧し、係止レバー１１の係止部１１ｄと後軸１の凹部Ａ１ｂとの係止状態を解除してスライドキヤツプ６を後軸１に対して前方へ摺動させると、蓋７の取付部に近い内面に印字体カバー２０の周縁角部が当接して押圧することにより蓋７が拡開し、スライドキヤツプ６の後端口が開口して印鑑１７の印字面１９ａが露出し、釦１１ａの押圧を解除するとスプリング１３の附勢力によって係止部１１ｄが後軸１の凹部Ｂ１ｃと係止状態となり捺印を可能とする。この状態から再び釦１１ａを押圧し、スライドキヤツプ６を後軸１に対して後方へ摺動させると、前記捻りバネ８によつて蓋７がスライドキヤツプ後端口を塞いで印鑑１７の印字面１９ａを隠蔽する。そして、釦１１ａの押圧を解除すると係止部１１ｄが後軸１の凹部Ａ１ｂと係止状態となり蓋７が閉じた状態にロックされる。
スライドキヤツプ６は、後軸１の全長に対して全長が短寸となされたことにより、片手操作でも容易に蓋が開閉可能である。しかも、実施形態において、前端がクリップ側と反対の側で傾斜状に後退しているので一層操作性がよい。
またスライドキャップ６は、内孔の上面が平坦となった略断面円形状の筒体で、且つ、後軸１も上面が平坦となった略断面円形状の同形の筒体なので、スライドキャップ６を後軸１に被装すれば回転方向で一体化することはできるが、ガタツキ防止やスムーズな摺動は期待できない。スライドキャップの筒体６ａの内面に形成されたリブ６ｇが後軸１のストパー１ｅを弾性的に乗り越えて摺動溝１ａに嵌入し、リブ６ｇの前後端が後軸の摺動溝１ａのストッパー１ｅと後端部１ｆに当接する間隔でスライドするように設けたことによって、ガタツキ防止やスムーズな摺動が期待できると共に、後軸１に対するスライドキャップ６の容易な取付けと前後退位置の位置決めが容易である。 (Function)
FIG. 5 shows an unused state of the seal in which the lid 7 closes the rear end of the slide cap. The lid 7 is attached to the slide cap 6 by a torsion spring 8 and the rear end of the slide cap 6 is opened. It is energized in the closing direction. From this state, the button 11a of the locking lever 11 is pressed to release the locking state between the locking portion 11d of the locking lever 11 and the recess A1b of the rear shaft 1, and the slide cap 6 is moved forward with respect to the rear shaft 1. , The edge 7 of the printing body cover 20 abuts against and presses the inner surface near the mounting portion of the lid 7, so that the lid 7 is expanded and the rear end opening of the slide cap 6 is opened and the seal 17 is opened. When the printing surface 19a is exposed and the button 11a is released, the engaging portion 11d is engaged with the recess B1c of the rear shaft 1 by the urging force of the spring 13, thereby enabling the marking. When the button 11a is pressed again from this state and the slide cap 6 is slid backward with respect to the rear shaft 1, the lid 7 closes the rear end of the slide cap by the torsion spring 8, and the printing surface 19a of the seal 17 is closed. To hide. When the pressing of the button 11a is released, the locking portion 11d is locked with the recess A1b of the rear shaft 1, and the lid 7 is locked closed.
The slide cap 6 has a short length relative to the full length of the rear shaft 1, so that the lid can be easily opened and closed even with one-hand operation. In addition, in the embodiment, since the front end is inclined back on the side opposite to the clip side, the operability is further improved.
The slide cap 6 is a cylindrical body having a substantially cross-sectional circular shape with a flat top surface of the inner hole, and the rear shaft 1 is also a cylindrical body having a substantially cross-sectional circular shape with a flat top surface. Can be integrated in the rotational direction, but it cannot be expected to prevent rattling or smooth sliding. The rib 6g formed on the inner surface of the cylindrical body 6a of the slide cap elastically climbs over the stopper 1e of the rear shaft 1 and fits into the sliding groove 1a, and the front and rear ends of the rib 6g are stoppers for the sliding groove 1a of the rear shaft. 1e and the rear end portion 1f are provided so as to slide at an interval contacting the rear end portion 1f, and can be expected to prevent rattling and smooth sliding. Also, the slide cap 6 can be easily attached to the rear shaft 1 and the front retracted position can be positioned. Easy.

また、係止レバー１１の係止部１１ｄの後部端面が鉤状に設けられ、一方、後軸１の凹部Ｂ１ｃの後部端面が同様な鉤状に設けられているが、これは、スライドキヤツプ６の後端口を開口して捺印するときに、スライドキャップ６の側面を指で掴んで行うが、印字面１９ａを書類等に強く押しつけたときに、スライドキャップの係止部１１ｄと後軸の凹部Ｂ１ｃと係止が外れる可能性があり、不用意に外れないように相互が鉤状に迎合するように設けられたものである。また、スプリング１３の附勢力を強くして係止状態を強固とする手段もあるが、スプリングのヘタリなどの問題がある。また、強く押しつけると印字面が潰れるので通常の捺印では問題が無く、必ず必要な構成ではない。尚、捺印する際にスライドキャップ６の側面を指で掴まず、その後方の後軸１、極端には中軸２や先軸３を掴んで行えば前記係止が不用意に外れる問題は無い。しかしながら、正確な位置に捺印しずらい問題がある。また、係止レバー１１の係止部１１ｄの前端面が垂直に設けられ、一方、後軸１の凹部Ａ１ｂの前端面が垂直に設けられているが、携帯時に異常な外力が掛かって不用意に蓋７が開かないように相互間が鉤状に迎合するように設けられるが望ましいとも言える。 Further, the rear end surface of the locking portion 11d of the locking lever 11 is provided in a hook shape, while the rear end surface of the recess B1c of the rear shaft 1 is provided in a similar hook shape. When the opening is made by opening the rear end opening, the side surface of the slide cap 6 is grasped with a finger. When the printing surface 19a is strongly pressed against a document or the like, the slide cap engaging portion 11d and the rear shaft recess are formed. There is a possibility that the locking with B1c may be released, and the two are provided in a bowl-like manner so as not to be inadvertently released. In addition, there is means for strengthening the locking state by increasing the urging force of the spring 13, but there is a problem such as spring settling. In addition, since the printing surface is crushed when pressed strongly, there is no problem with normal stamping, and this is not a necessary configuration. If the side surface of the slide cap 6 is not gripped with a finger and the rear shaft 1, the extreme middle shaft 2 or the front shaft 3 is gripped by the finger, there is no problem that the locking is inadvertently released. However, there is a problem that it is difficult to stamp at an accurate position. In addition, the front end surface of the locking portion 11d of the locking lever 11 is provided vertically, while the front end surface of the recess A1b of the rear shaft 1 is provided vertically. It can be said that it is desirable that the lids 7 are arranged in a bowl shape so that the lid 7 does not open.

また、グリップ２０あるいは中軸２に対して後軸１あるいはスライドキャップ６を回動させると、ガイド筒４に対して円筒カム５が回動し、ガイド溝に遊嵌された摺動コマ１４のカム状凸部が円筒カム５のカム斜面５ｂに接触して前後動し、先軸３の先端孔から選択的にボールペン等筆記体１６の先端部が出没する。 Further, when the rear shaft 1 or the slide cap 6 is rotated with respect to the grip 20 or the middle shaft 2, the cylindrical cam 5 is rotated with respect to the guide tube 4, and the cam of the sliding piece 14 loosely fitted in the guide groove is provided. The convex portion comes into contact with the cam inclined surface 5b of the cylindrical cam 5 and moves back and forth, so that the tip end portion of the writing body 16 such as a ballpoint pen is selectively projected and retracted from the tip hole of the tip shaft 3.

上述したように、図２に示すガイド筒４には、３箇所にずらして設けられた縦溝４ｓが示されている。中軸２は、ガイド筒４の筒部４ａの前端から被装され、リブ２ｂがガイド筒の何れかの縦溝４ｓに嵌挿すると共に凸部２ａがガイド筒の係止突部４ｆを弾性変形により乗り越えて段部４ｅと係止突部４ｆとの間に係止されて止着される。また中軸２はガイド筒４に対して着脱容易に取付け強さを設定することが可能である。
一方、図１に示す後軸１の前端には凸部１ｇ、１ｈが形成されている。また、図１に示す中軸２の後端には凹部２ｃ、２ｄ、２ｅが形成されている。（注記、図１は筆記体の筆記先端部が軸先内に収納された状態であるが、図に示される凸部と凹部の示された位置関係は不正確なもので、単に部位の所在を示したにすぎない。）
また、凸部１ｇ、１ｈの前端が中軸２の後端２ｇに略当接した状態で中軸２に対する後軸１の軸推移が不可とされ、凸部１ｇ、１ｈが中軸２の凹部に嵌入する状態で軸推移可能となる。 As described above, the guide cylinder 4 shown in FIG. 2 shows the vertical grooves 4s provided at three positions. The middle shaft 2 is mounted from the front end of the tube portion 4a of the guide tube 4. The rib 2b is inserted into any longitudinal groove 4s of the guide tube, and the convex portion 2a elastically deforms the locking protrusion 4f of the guide tube. To get over and locked between the stepped portion 4e and the locking projection 4f. Further, the attachment strength of the middle shaft 2 can be set easily with respect to the guide tube 4.
On the other hand, convex portions 1g and 1h are formed at the front end of the rear shaft 1 shown in FIG. Further, recesses 2c, 2d, and 2e are formed at the rear end of the middle shaft 2 shown in FIG. (Note, Fig. 1 shows the state where the writing tip of the cursive body is housed in the shaft tip, but the positional relationship between the convex part and the concave part shown in the figure is inaccurate and is simply the location of the part. Only showed.)
Further, in a state where the front ends of the convex portions 1g and 1h are substantially in contact with the rear end 2g of the middle shaft 2, the rear shaft 1 cannot be shifted with respect to the middle shaft 2, and the convex portions 1g and 1h are fitted into the concave portions of the middle shaft 2. The axis can be changed in the state.

図３は、後軸１の前端に形成された凸部１ｇ、１ｈと中軸２の後端に形成された凹部２ｃ、２ｄ、２ｅ、２ｆの位置関係を説明した展開図である。
先ず、この複式筆記具は２本の筆記体が搭載され、中軸２に対する後軸１の回動範囲が略１８０°であり、図３の状態は一方の筆記体の筆記先端部が軸先から突出した状態に対応している。凸部１ｇ、１ｈは中心角６０°離れた後軸前端面に矩形状の小突片として形成されており、凸部１ｇの巾は凸部１ｈの巾よりやや大きく設定されている。また、中軸２の後端面にやはり矩形状の凹部２ｃ、２ｄ、２ｅ、２ｆが形成され、凹部２ｃは凸部１ｇに対面し、凹部２ｄは凸部１ｈに対面して、中軸に対する後軸の軸推移でそれぞれ嵌合するが、凹部２ｃ、２ｄはそれぞ同方向側に所定巾の隙間を有している。この状態から中軸２に対して後軸１を１８０°回動すると、凸部１ｇ、１ｈは１ｇａと１ｈａに移動する。そのとき、凸部１ｇａと１ｈａは凹部２ｅ、２ｆに対面する。その際、凸部１ｇａの前端が中軸２の後端２ｇに当接して軸推移が阻止されるよう設けられている。また、凹部２ｅ、２ｆにおいても前記凹部２ｃ、２ｄと同様にそれぞれ同方向側に所定巾の隙間分の余裕巾が設けられており、基本的には凹部２ｅの巾は凸部１ｇの巾より大きい。当然凹部２ｆの巾も凸部１ｈの巾より大きい。
この設定で一方の筆記体をシャープペンシル、他方をボールペンとすることができる。 FIG. 3 is a development view illustrating the positional relationship between the convex portions 1g and 1h formed at the front end of the rear shaft 1 and the concave portions 2c, 2d, 2e and 2f formed at the rear end of the middle shaft 2. FIG.
First, this compound writing instrument is equipped with two writing bodies, the rotation range of the rear shaft 1 with respect to the middle shaft 2 is approximately 180 °, and the state of FIG. 3 is that the writing tip of one writing body protrudes from the shaft tip. It corresponds to the state. The convex portions 1g and 1h are formed as rectangular small protruding pieces on the front end face of the rear shaft separated by a central angle of 60 °, and the width of the convex portion 1g is set slightly larger than the width of the convex portion 1h. In addition, rectangular concave portions 2c, 2d, 2e, and 2f are formed on the rear end surface of the middle shaft 2, the concave portion 2c faces the convex portion 1g, the concave portion 2d faces the convex portion 1h, and the rear shaft with respect to the central shaft Each of the recesses 2c and 2d has a gap of a predetermined width on the same direction side, although they are fitted by axial transition. When the rear shaft 1 is rotated 180 ° with respect to the middle shaft 2 from this state, the convex portions 1g and 1h move to 1ga and 1ha. At that time, the convex portions 1ga and 1ha face the concave portions 2e and 2f. At this time, the front end of the convex portion 1ga is in contact with the rear end 2g of the middle shaft 2 so as to prevent axial transition. Also, in the recesses 2e and 2f, similarly to the recesses 2c and 2d, a margin width corresponding to a predetermined gap is provided on the same direction side. Basically, the width of the recess 2e is larger than the width of the projection 1g. large. Of course, the width of the concave portion 2f is also larger than the width of the convex portion 1h.
With this setting, one handwriting can be a mechanical pencil and the other can be a ballpoint pen.

また、上述した中軸の凹部の同方向側に設けられた所定巾の隙間を無くす方向に中軸を２をずらしてガイド筒４に止着すると、筆記体の筆記先端部が軸先から突出した状態に対して、凸部がすべて凹部に嵌合した状態とすることが可能となり、２本の筆記体をシャープペンシルとすることが可能となる。
また更に、中軸２をずらしてガイド筒４に止着し、筆記体の筆記先端部が軸先から突出した状態に対して、後軸１の凸部の前端が中軸２の後端２ｇに当接状態とすることが可能であり、２本の筆記体はボールペンとすることが望ましい状態となる。
尚、中軸２をガイド筒４に対して円周方向にずらして位置決めする手段は上述したことに限定されず設けることができる。一例としては、ガイド筒に設けられた３箇所の縦溝は全周に多数設けた微細な縦溝で、中軸の内周に設けられたリブは多数の微細なリブであってもよく、正しい位置決めが可能となるように相互間に合わせ表示部を設けるなどで容易に達成することが可能である。 Further, when the intermediate shaft is shifted by 2 in the direction to eliminate the gap of the predetermined width provided on the same direction side of the concave portion of the above-described central shaft and fixed to the guide cylinder 4, the writing tip portion of the writing body protrudes from the shaft tip On the other hand, it is possible to make all the convex portions fit into the concave portions, and it is possible to make the two writing bodies into mechanical pencils.
Furthermore, the middle shaft 2 is displaced and fixed to the guide cylinder 4, and the front end of the convex portion of the rear shaft 1 is in contact with the rear end 2g of the middle shaft 2 with respect to the state where the writing tip portion of the writing body protrudes from the shaft tip. It is possible to be in a contact state, and it is desirable that the two writing bodies be ballpoint pens.
The means for positioning the middle shaft 2 with respect to the guide cylinder 4 in the circumferential direction can be provided without being limited to the above. As an example, the three longitudinal grooves provided on the guide cylinder are fine vertical grooves provided on the entire circumference, and the rib provided on the inner periphery of the central shaft may be a large number of fine ribs. This can be easily achieved by providing a display portion or the like so as to enable positioning.

シャープペンシル筆記体を搭載する場合、中軸２に対する後軸１の軸推移は芯を繰り出すために必要なノックストロークとなる。また、シヤープペンシル筆記体の先端部を先軸３の前端孔から突出させると共に、先端部後方に設けた段部を先軸前端の内段部に係合させ、シヤープペンシル筆記体の後方に芯を内蔵する芯パイプを設け、さらに、芯パイプの後端に摺動コマ１４を取付けて、中軸２に対する後軸１の軸推移によってシヤープペンシル筆記体の後端に接続する摺動コマ１４のカム状凸部の後端を円筒カム５の前端で軸推移させて芯を繰り出す。（尚、芯を把持したり、芯を繰り出したりするシャープペンシル筆記体の構造及び作用については、複式筆記具に搭載する筆記体として良く知られているので図面や詳細な説明は省略する。） When the mechanical pencil cursive is mounted, the axis transition of the rear shaft 1 with respect to the middle shaft 2 is a knock stroke necessary for feeding the lead. Further, the front end portion of the shear pencil pencil is protruded from the front end hole of the front shaft 3, and a step portion provided at the rear of the front end portion is engaged with the inner step portion of the front end of the front shaft so that the core is formed behind the shear pencil pencil. And a sliding piece 14 attached to the rear end of the core pipe and connected to the rear end of the shear pencil pencil by the axial transition of the rear shaft 1 with respect to the middle shaft 2. The rear end of the convex portion is moved axially at the front end of the cylindrical cam 5 to feed out the core. (Note that the structure and action of the mechanical pencil writing body that grips the core and feeds out the core is well known as a writing body mounted on a compound writing instrument, so the drawings and detailed description are omitted.)

図４は、後軸１の前端に形成された凸部１ｉ、１ｊ、１ｋと、中軸２の後端に形成された凹部２ｈ、２ｉ、２ｊ、２ｋ、２ｍの位置関係を説明した展開図である。
先ず、この複式筆記具は３本の筆記体が搭載され、中軸２に対する後軸１の回動範囲が略２４０°であり、図４の状態は一方の筆記体の筆記先端部が軸先から突出した状態に対応している。凸部１ｊ、１ｋは凸部１ｉの両側に中心角６０°離れた後軸前端面に矩形状の小突片として形成されており、凸部１ｉの巾は凸部１ｊ、１ｋの巾よりやや大きく設定されている。また、中軸２の後端面にやはり矩形状の凹部２ｈ、２ｉ、２ｊ、２ｋ、２ｍが形成され、凹部２ｈは凸部１ｉに対面し、凹部２ｉは凸部１ｊに、凹部２ｊは凸部１ｋにそれぞれ対面して、中軸に対する後軸の軸推移でそれぞれ嵌合するが、凹部２ｈ、２ｉ、２ｊはそれぞ同方向側に所定巾の隙間を有している。この状態から中軸２に対して後軸１を１２０°回動すると、凸部１ｉの前端が中軸２の後端２ｎに当接する位置となるので中軸２に対して後軸１は軸推移が阻止される。更にこの状態から中軸２に対して後軸１を１２０°回動すると、凸部１ｉ、１ｊ、１ｋはそれぞれ１ｉａ、１ｊａ、１ｋａに移動する。そのとき、凸部１ｉａ、１ｊａ、１ｋａは凹部２ｍ、２ｋ、２ｉに対面する。その際、凸部１ｉａの前端が中軸２の後端２ｎに当接して軸推移が阻止されるよう設けられている。また、凹部２ｍ、２ｋにおいても前記凹部２ｈ、２ｉ、２ｊと同様にそれぞれ同方向側に所定巾の隙間分の余裕巾が設けられており、基本的には凹部２ｍの巾は凸部１ｉ（１ｉａ）の巾より大きい。当然凹部２ｋの巾も凸部１ｊ（１ｊａ）の巾より大きい。この設定で１箇所の筆記体をシャープペンシル、他の２箇所をボールペンとすることができる。 FIG. 4 is a developed view illustrating the positional relationship between the convex portions 1i, 1j, and 1k formed at the front end of the rear shaft 1 and the concave portions 2h, 2i, 2j, 2k, and 2m formed at the rear end of the middle shaft 2. is there.
First, this dual writing instrument is equipped with three writing bodies, the rotation range of the rear shaft 1 with respect to the central shaft 2 is approximately 240 °, and the state of FIG. 4 shows that the writing tip of one writing body protrudes from the shaft tip. It corresponds to the state. The convex portions 1j and 1k are formed as small rectangular protrusions on the front end face of the rear shaft at a central angle of 60 ° on both sides of the convex portion 1i. The width of the convex portion 1i is slightly larger than the width of the convex portions 1j and 1k. It is set large. In addition, rectangular concave portions 2h, 2i, 2j, 2k, and 2m are also formed on the rear end surface of the middle shaft 2, the concave portion 2h faces the convex portion 1i, the concave portion 2i is the convex portion 1j, and the concave portion 2j is the convex portion 1k. The recesses 2h, 2i, and 2j each have a gap of a predetermined width on the same direction side. When the rear shaft 1 is rotated by 120 ° with respect to the middle shaft 2 from this state, the front end of the convex portion 1i comes into contact with the rear end 2n of the middle shaft 2, so that the rear shaft 1 is prevented from shifting relative to the middle shaft 2. Is done. Further, when the rear shaft 1 is rotated by 120 ° with respect to the middle shaft 2 from this state, the convex portions 1i, 1j, and 1k move to 1ia, 1ja, and 1ka, respectively. At that time, the convex portions 1ia, 1ja, and 1ka face the concave portions 2m, 2k, and 2i. At this time, the front end of the convex portion 1ia is in contact with the rear end 2n of the middle shaft 2 so as to prevent axial transition. Also, in the recesses 2m and 2k, similarly to the recesses 2h, 2i, and 2j, a margin width corresponding to a predetermined width is provided on the same direction side. Basically, the recess 2m has a width of the protrusion 1i ( It is larger than the width of 1ia). Of course, the width of the concave portion 2k is also larger than the width of the convex portion 1j (1ja). With this setting, one place of writing can be used as a mechanical pencil, and the other two places can be used as ballpoint pens.

また、上述した中軸の凹部の同方向側に設けられた所定巾の隙間を無くす方向に中軸２をずらしてガイド筒４に止着すると、筆記体の筆記先端部が軸先から突出した状態に対して、凸部がすべて凹部に嵌合した状態とすることが可能となり、ボールペンを挟んだ２箇所の筆記体をシャープペンシルとすることが可能となる。（無論、図４に示す展開図の中心に更に一箇所凹部を形成すれば、３箇所の筆記体をシャープペンシルとすることが可能となる。）また更に、中軸２をずらしてガイド筒４に止着し、筆記体の筆記先端部が軸先から突出した状態に対して、後軸１の凸部の前端が中軸２の後端２ｎに当接状態とすることが可能であり、３本の筆記体はボールペンとすることが望ましい状態となる。 Further, when the intermediate shaft 2 is shifted in the direction of eliminating the gap of the predetermined width provided on the same direction side of the concave portion of the above-described central shaft and is fixed to the guide tube 4, the writing tip portion of the writing body protrudes from the shaft tip. On the other hand, it is possible to make all the convex portions fit into the concave portions, and it is possible to make the two writing bodies sandwiching the ballpoint pen as mechanical pencils. (Of course, if one recess is further formed in the center of the development shown in FIG. 4, it is possible to make the three writing bodies into mechanical pencils.) Further, the center shaft 2 is shifted to the guide tube 4. The front end of the convex portion of the rear shaft 1 can be brought into contact with the rear end 2n of the middle shaft 2 with respect to the state where the writing tip of the writing body protrudes from the shaft tip. It is desirable that the cursive body is a ballpoint pen.

（他の実施形態）
本発明の要旨は、中軸の後端と後軸の前端において、何れか一方に軸方向に変位する凹部と、他方に軸方向に変位する凸部を設け、筆記体の先端部が突出する位置において、前記凹部と凸部が対面したときに中軸に対して後軸の軸推移が可能、また、凹部と凸部の対面を外すことによって中軸に対して後軸の軸推移が不可となり、その中軸をガイド筒に対して円周方向に位置をずらして取付けることによって、筆記体の先端部が突出するすべての箇所で軸推移可能または軸推移不可、また所定箇所で軸推移可能、他の箇所で軸推移不可とすることが可能となり、搭載するボールペンやシャープペンシル筆記体の組合わせを容易に変えることが可能となるものであって、凸部や凹部の形状、凸部と凹部の設定数など上述した実施形態に限定されず変更が可能である。
また、筆記体の後端と摺動コマの前端側との接続はボールペンとシャープペンシルを選ばず容易に設けることができる。
また実施形態が印鑑付複式筆記具で示されているが、本発明の複式筆記具は、後軸の後端に消しゴムとカバーを設けたもの、後軸の後端に回動することで消しゴムが出没可能となる消しゴム繰出し装置を設けたもの、後軸の後端にマーカーや修正具などを設けたものなど、多種の複式筆記具に適用できる。
また、実施形態において、ガイド筒４の係止段部４ｊに円筒カム５の段部５ｊを係合させ、ガイド筒４に対して円筒カム５が後方に抜止め固定されると共に、円筒カムの鍔部５ｈの側面がガイド筒４の当接部４ｐ、４ｒに当接する角度範囲で円周方向に回動自在となされて、ガイド筒４に対して円筒カム５を回動したときにボールペン等筆記体１６、１６の先端部が軸先から交互に出没するようになされている。また、鍔部５ｈ（円筒カムのカム斜面の前端と同一軸線上にある。）ガイド溝４ｍ、４ｎに対面した位置でそれぞれガイド溝に遊嵌し軸推移可能となるようになされている。ガイド筒に対して円筒カムを所定の範囲内で回動し、ガイド溝に対面して円筒カムのカム斜面の前端が位置した時に軸推移可能、それ以外の位置で軸推移不可となる構造は実施形態に限定されないものである。
例えば、円筒カムに鍔部を設けずに、ガイド溝の一方側の軸周側面に突状のストッパーを形成して、円筒カムのカム斜面の側面を当接してガイド筒に対して円筒カムを所定の範囲内で回動させることができる。また、ガイド溝の他方側の軸周側面に段部を形成して円筒カムの前端を段部に当接して軸推移不可とすることができる。 (Other embodiments)
The gist of the present invention is that a position where the concave portion which is displaced in the axial direction and the convex portion which is displaced in the axial direction are provided on one side at the rear end of the middle shaft and the front end of the rear shaft, and the tip portion of the writing body protrudes. , When the concave portion and the convex portion face each other, the rear shaft can be shifted with respect to the middle shaft, and by removing the concave portion and the convex portion, the rear shaft can be shifted with respect to the middle shaft. By shifting the position of the middle shaft in the circumferential direction with respect to the guide tube, the shaft can be moved or cannot be moved at all locations where the tip of the cursive body protrudes, and the shaft can be moved at a predetermined location. This makes it possible to change the combination of ballpoint pens and mechanical pencils to be mounted easily, and the number of protrusions and recesses, and the number of protrusions and recesses set. Are limited to the above-described embodiments. It is possible to change.
Further, the connection between the rear end of the cursive body and the front end side of the sliding piece can be easily provided without selecting a ballpoint pen and a mechanical pencil.
In addition, although the embodiment is shown as a dual writing instrument with a seal, the dual writing instrument of the present invention has an eraser and a cover provided at the rear end of the rear shaft, and the eraser appears and disappears by rotating to the rear end of the rear shaft. The present invention can be applied to various types of compound writing instruments such as those provided with an eraser feeding device that can be used, and those provided with a marker or a correction tool at the rear end of the rear shaft.
Further, in the embodiment, the stepped portion 5j of the cylindrical cam 5 is engaged with the locking stepped portion 4j of the guide tube 4, and the cylindrical cam 5 is secured to the guide tube 4 in the rearward direction. The side surface of the flange portion 5h is rotatable in the circumferential direction within an angular range where the side surface of the guide tube 4 contacts the contact portions 4p and 4r. When the cylindrical cam 5 is rotated with respect to the guide tube 4, a ballpoint pen or the like The front ends of the cursive bodies 16 and 16 are alternately projected and retracted from the shaft tip. Further, the flange 5h (on the same axis as the front end of the cam slope of the cylindrical cam) is adapted to be freely fitted in the guide grooves at positions facing the guide grooves 4m and 4n so that the shaft can be shifted. The structure is such that the cylindrical cam can be rotated within the specified range with respect to the guide tube, and the axis can be shifted when the front end of the cam slope of the cylindrical cam faces the guide groove. It is not limited to the embodiment.
For example, without providing a collar portion on the cylindrical cam, a protruding stopper is formed on the axial circumferential side surface of one side of the guide groove, and the cylindrical cam is brought into contact with the side surface of the cam inclined surface of the cylindrical cam so that the cylindrical cam is It can be rotated within a predetermined range. In addition, a step portion can be formed on the other circumferential side surface of the guide groove and the front end of the cylindrical cam can be brought into contact with the step portion so that the shaft cannot be shifted.

本発明の実施形態である複式筆記具の全体を示す外観図である。It is an external view which shows the whole double-type writing instrument which is embodiment of this invention. 図１に示す複式筆記具に使用する、一部断面したガイド筒の上面図である。FIG. 2 is a top view of a partially cut guide cylinder used in the dual writing instrument shown in FIG. 1. 本発明の要旨を説明する図である。It is a figure explaining the summary of this invention. 本発明の要旨を説明する図である。It is a figure explaining the summary of this invention. 本発明の複式筆記具の詳細構造を説明する縦断面図である。It is a longitudinal cross-sectional view explaining the detailed structure of the dual-type writing instrument of this invention. 図５の全体を示す外観図である。It is an external view which shows the whole of FIG. 後軸の正面図である。It is a front view of a rear axis. 後軸の断面図である。It is sectional drawing of a rear axis. 後軸の上面図である。It is a top view of a rear axis. 図７のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図８のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 一部断面したガイド筒の上面図である。It is a top view of the guide cylinder which carried out the partial cross section. ガイド筒のＣ−Ｃ断面図である。It is CC sectional drawing of a guide cylinder. ガイド筒の正面図である。It is a front view of a guide cylinder. 図１２のＤ−Ｄ断面図である。It is DD sectional drawing of FIG. ガイドリングを示すである。It is a guide ring. 円筒カムの正面図である。It is a front view of a cylindrical cam. 円筒カムの上面図である。It is a top view of a cylindrical cam. 円筒カムの断面図である。It is sectional drawing of a cylindrical cam. 中軸の半断面図である。It is a half sectional view of the middle shaft. スライドキャップの正面図である。It is a front view of a slide cap. スライドキャップの上面図である。It is a top view of a slide cap. 図２２のＦーＦ断面図である。It is FF sectional drawing of FIG. スライドキャップの側面図である。It is a side view of a slide cap. 蓋の側面図である。It is a side view of a lid. 蓋の正面図である。It is a front view of a lid. 係止レバーーの側面図である。It is a side view of a locking lever.

Explanation of symbols

１後軸
１ａ摺動溝
１ｂ凹部Ａ
１ｃ凹部Ｂ
１ｄ係止突部
１ｅストッパー
１ｆ後端部
１ｇ凸部
１ｇａ凸部
１ｈ凸部
１ｈａ凸部
１ｉ凸部
１ｉａ凸部
１ｊ凸部
１ｊａ凸部
１ｋ凸部
１ｋａ凸部
２中軸
２ａ凸部
２ｂリブ
２ｃ凹部
２ｄ凹部
２ｅ凹部
２ｆ凹部
２ｇ後端
２ｈ凹部
２ｉ凹部
２ｊ凹部
２ｋ凹部
２ｍ凹部
２ｎ後端
３先軸
３ａ口先部
４ガイド筒
４ａ筒部
４ｂ軸部
４ｃ軸部
４ｄ螺子部
４ｅ段部
４ｆ係止突部
４ｇ縦溝
４ｈ凹部
４ｉ窓部
４ｊ係止段部
４ｋ段部
４ｌ段部
４ｍガイド溝
４ｎガイド溝
４ｐ当接部
４ｒ当接部
４ｓ縦溝
５円筒カム
５ａ筒部
５ｂカム斜面
５ｃ切欠
５ｄ窓部
５ｅ筒部
５ｆ窓部
５ｇ係合突部
５ｈ鍔部
５ｉ段部
５ｊ段部
５ｋ段部
６スライドキャップ
６ａ筒体
６ｂクリップ取付け台
６ｃ孔
６ｄ孔
６ｅ座
６ｆ囲い部
６ｇリブ
６ｈ係止溝
６ｉはめ込み形状
６ｊ軸支部
６ｋ軸支部
７蓋
７ａ孔
７ｂ軸支部
７ｃはめ込み形状
７ｄ凹所
８捻りバネ
９ピン
１０ロック装置
１１係止レバー
１１ａ釦
１１ｂ軸支部
１１ｃアーム
１１ｄ係止部
１１ｅ孔
１２ピン
１３スプリング
１４摺動コマ
１５リターンスプリング
１６ボールペン等筆記体
１７印鑑
１８取付け台
１９印字体
１９ａ印字面
２０印字体カバー
２１ガイドリング

1 Rear shaft 1a Sliding groove 1b Recess A
1c Concave B
1d Locking protrusion 1e Stopper 1f Rear end 1g Protruding part 1ga Protruding part 1h Protruding part 1ha Convex part 1i Convex part 1ia Convex part 1j Convex part 1ja Convex part 1k Convex part 1ka Convex part 2 Cavity part 2b Convex part 2b Rib 2d concave portion 2e concave portion 2f concave portion 2g rear end 2h concave portion 2i concave portion 2j concave portion 2k concave portion 2m concave portion 2n rear end 3 front shaft 3a front end portion 4 guide tube 4a tube portion 4b shaft portion 4c shaft portion 4d screw portion 4e stepped portion 4f locking protrusion Part 4g vertical groove 4h concave part 4i window part 4j locking step part 4k step part 4l step part 4m guide groove 4n guide groove 4p abutting part 4r abutting part 4s longitudinal groove 5 cylindrical cam 5a cylinder part 5b cam slope 5c window 5d notch 5d window Part 5e Tube part 5f Window part 5g Engagement protrusion part 5h Gutter part 5i Step part 5j Step part 5k Step part 6 Slide cap 6a Tube 6b Clip mounting base 6c Hole 6d Hole 6e Seat 6f Enclosure 6g Rib 6h Locking groove 6i Fit shape 6j Shaft support 6k Shaft support 7 Lid 7a Hole 7b Shaft support 7c Fit shape 7d Recess 8 Torsion spring 9 Pin 10 Lock device 11 Lock lever 11a Button
11b Shaft support portion 11c Arm 11d Locking portion 11e Hole 12 Pin 13 Spring 14 Sliding piece 15 Return spring 16 Writing object such as ballpoint pen 17 Seal 18 Mounting base 19 Printing body 19a Printing surface 20 Printing body cover 21 Guide ring

Claims

When the middle shaft is fixed to the guide tube and the front end of the guide tube is joined to the rear end of the front shaft, the rear end of the front shaft contacts the front end of the middle shaft, and the middle shaft is fixed to the guide tube. A sliding piece is attached to each guide groove of the guide cylinder provided with the guide groove at the rear end of the writing body such as a ballpoint pen, and a return spring is laid between the front of the guide groove and the sliding piece, and the sliding piece The sliding piece is slidably fitted in the guide groove so as to be slidable in the axial direction, and the sliding piece comes into contact with the peripheral surface of the guide cylinder in the axial direction. A cylindrical cam with a cam slope that can be slidably mounted on the inner surface of the rear shaft is integrated with the inner surface of the rear shaft. The rear cam is rotated so that the tip of the cursive body protrudes from the shaft tip. Axis transition is possible, the transition of the cursive body is not possible with the tip of the cursive being sunk from the shaft tip, and on the other hand, at the rear end of the middle shaft and the front end of the rear shaft, one of the concave portions is displaced in the axial direction, and the other is Provided with a convex part that is displaced in the axial direction, the rear axis can be shifted relative to the central axis at the position where the concave part and the convex part face each other at the position where the tip of the writing body protrudes, and the concave part and the convex part face each other The rear shaft is not allowed to move with respect to the middle shaft at the position where it is off, and by changing the mounting position of the middle shaft in the circumferential direction relative to the guide tube and fixing it, all the positions where the tip of the cursive body protrudes are A compound writing instrument characterized in that it can be set such that it can change or cannot change its axis, or can change its axis at one position where the tip of the writing body protrudes, and cannot change its position at other positions.

The compound writing instrument according to claim 1, wherein a shear pencil pencil is disposed in a guide groove in which the rear shaft can be shifted relative to the middle shaft at a position where the tip of the writing body protrudes.