JP2010005830A - Multi-refill writing utensil - Google Patents

Multi-refill writing utensil Download PDF

Info

Publication number
JP2010005830A
JP2010005830A JP2008165318A JP2008165318A JP2010005830A JP 2010005830 A JP2010005830 A JP 2010005830A JP 2008165318 A JP2008165318 A JP 2008165318A JP 2008165318 A JP2008165318 A JP 2008165318A JP 2010005830 A JP2010005830 A JP 2010005830A
Authority
JP
Japan
Prior art keywords
cylinder
writing
chuck
core
mechanical pencil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2008165318A
Other languages
Japanese (ja)
Inventor
Hisatsugu Iwata
久嗣 岩田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilot Ink Co Ltd
Original Assignee
Pilot Ink Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pilot Ink Co Ltd filed Critical Pilot Ink Co Ltd
Priority to JP2008165318A priority Critical patent/JP2010005830A/en
Publication of JP2010005830A publication Critical patent/JP2010005830A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-refill writing utensil which can keep a writing element made up of a refilling pencil smoothly inserted into a barrel from an opening at the rear end of the barrel. <P>SOLUTION: A plurality of writing elements 6 are accommodated in the barrel 2 in the way that the writing element 6 can move back and forth, then a manipulator 7 is connected with the rear end of each writing utensil 6, and each manipulation part 71 of the manipulator 7 is allowed to project outward in the diametral direction, from window holes in the side wall of the barrel 2. In addition, an opening 42, which is freely openable and closable, is formed at the rear end of the barrel 2, and the writing utensil 6 and the manipulator 7 are insertable into the barrel 2 through the opening 42. At least, one of the writing utensils serves as an ejection-type refilling pencil. The refilling pencil comprises a lead accommodating cylinder 61, a connection cylinder 62, a chuck 63, a forward end cylinder 64, a fastening ring 65 and a chuck spring 66. The maximum outside diameter of the forward end cylinder 64, the connection cylinder 62, the lead accommodating cylinder 61 and the chuck spring 66, is formed smaller than the inside diameter of each coil spring 8. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、多芯筆記具に関する。詳細には、軸筒内に複数の筆記体を収容し、筆記体とその後端に連結される操作体とを交換可能に構成した多芯筆記具に関する。 The present invention relates to a multi-core writing instrument. More specifically, the present invention relates to a multi-core writing instrument in which a plurality of writing bodies are accommodated in a shaft cylinder, and the writing body and an operation body connected to the rear end thereof are replaceable.

従来この種の多芯筆記具において、特許文献１には、軸筒の後端に、窓孔を後方に開口させる開閉自在の開口部を設け、前記開口部を介して筆記体と操作体とを、連結状態で、軸筒内から取り外し可能且つ軸筒内に挿入可能に構成したことが開示されている。また、特許文献１には、筆記体としてシャープペンシルを採用し、前軸に対して後軸を前後方向に移動可能に構成し、後軸の前進により鉛芯の繰り出しを可能にすることが記載されている。
特開２００７−３８６３５号公報 Conventionally, in this type of multi-core writing instrument, in Patent Document 1, an openable and closable opening is provided at the rear end of the shaft tube to open the window hole backward, and the writing body and the operating body are provided via the opening. In the connected state, it is disclosed that it can be removed from the shaft tube and can be inserted into the shaft tube. Patent Document 1 describes that a mechanical pencil is used as a cursive body, the rear shaft is configured to be movable in the front-rear direction with respect to the front shaft, and the lead core can be extended by advancing the rear shaft. Has been.
JP 2007-38635 A

前記特許文献１には、筆記体としてシャープペンシルを採用することが記載されているとしても、シャープペンシルからなる筆記体は、ボールペンからなる筆記体に比べて、筆記体の前端部（例えば、チャック体等を備えた繰り出し機構部）外面が凸凹した形状を有する。そのため、シャープペンシルからなる筆記体を、軸筒の後端の開口部より軸筒内に挿入する際、シャープペンシルからなる筆記体の前端部が、筆記体を後方に付勢するコイルスプリングの内部、コイルスプリングの前端が当接されるスプリング支持部の内孔、または操作体が径方向外方に突出する窓孔に、引っ掛かり易く、シャープペンシルからなる筆記体を軸筒内にスムーズに挿入できないおそれがある。 Even if it is described in Patent Document 1 that a mechanical pencil is adopted as a cursive body, a cursive body composed of a mechanical pencil is more inferior to a cursive body composed of a ballpoint pen (for example, a chuck). The feeding mechanism portion provided with a body or the like) The outer surface has an uneven shape. Therefore, when a cursive body made of mechanical pencil is inserted into the shaft tube from the opening at the rear end of the shaft tube, the front end portion of the cursive body made of mechanical pencil is inside the coil spring that urges the cursive body backward. The writing body made of mechanical pencil cannot be inserted smoothly into the shaft tube because it is easy to get caught in the inner hole of the spring support part where the front end of the coil spring abuts or the window hole where the operating body protrudes radially outward. There is a fear.

本発明は、シャープペンシルからなる筆記体を、軸筒の後端の開口部から軸筒内にスムーズに挿入することができる多芯筆記具を提供しようとするものである。尚、本発明において、「前」とはペン先側を指し、「後」とは反対側を指す。 An object of the present invention is to provide a multi-core writing instrument capable of smoothly inserting a writing body made of a mechanical pencil into an axial tube from an opening at the rear end of the axial tube. In the present invention, “front” refers to the pen tip side, and “rear” refers to the opposite side.

［１］本願の第１の発明は、軸筒２内に複数の筆記体６を前後方向に移動可能に収容し、前記各々の筆記体６をコイルスプリング８により後方に付勢し、前記各々の筆記体６の後端に操作体７を連結し、軸筒２の側壁に前後方向に延びる複数の窓孔４１を径方向に貫設し、前記各々の窓孔４１から径方向外方に前記各々の操作体７の操作部７１を突出させ、一つの操作体７を窓孔４１に沿って前方にスライドさせることにより、その一つの操作体７に連結された筆記体６のペン先を軸筒２の前端孔３１から突出させるとともに、先に突出状態にあった他の筆記体６のペン先を軸筒２内に没入させてなり、さらに、軸筒２の後端に、窓孔４１を後方に開口させる開閉自在の開口部４２を設け、前記開口部４２を介して筆記体６及び操作体７を、軸筒２内から取り外し可能且つ軸筒２内に挿入可能に構成した多芯筆記具であって、少なくとも筆記体６の一つがノック式のシャープペンシルであり、前記シャープペンシルが、鉛芯収容筒体６１と、該鉛芯収容筒体６１の前端に取り付けられる連結筒体６２と、該連結筒体６２の前端に設けたチャック体６３と、前記チャック体６３を内部に収容し且つ前記連結筒体６２に対して前後方向に移動可能に取り付けられる前端筒体６４と、該前端筒体６４内に収容され且つ前記チャック体６３を締め付ける締め付けリング６５と、前記前端筒体６４と前記連結筒体６２との間に介在され、前記前端筒体６４を前記連結筒体６２に対して前方に付勢するチャックスプリング６６とからなり、前記前端筒体６４、前記連結筒体６２、前記鉛芯収容筒体６１、及び前記チャックスプリング６６の最大外径を、前記各々のコイルスプリング８の内径より小さく形成したことを要件とする。 [1] In the first invention of the present application, a plurality of writing bodies 6 are accommodated in the shaft cylinder 2 so as to be movable in the front-rear direction, and each of the writing bodies 6 is urged rearward by a coil spring 8. The operating body 7 is connected to the rear end of the writing body 6, and a plurality of window holes 41 extending in the front-rear direction are provided in the side wall of the shaft cylinder 2 in the radial direction, and radially outward from the window holes 41. By projecting the operation portion 71 of each operation body 7 and sliding one operation body 7 forward along the window hole 41, the pen tip of the writing body 6 connected to the one operation body 7 is moved. While projecting from the front end hole 31 of the shaft tube 2, the pen tip of the other writing body 6 that has been in the projecting state is immersed in the shaft tube 2, and further, a window hole is formed at the rear end of the shaft tube 2. An openable and closable opening 42 is provided to open 41 to the rear, and the writing body 6 and the operating body 7 are connected through the opening 42. A multi-core writing instrument configured to be removable from the cylinder 2 and insertable into the shaft cylinder 2, wherein at least one of the writing bodies 6 is a knock-type mechanical pencil, and the mechanical pencil is a lead-core housing cylinder 61. A connecting cylinder 62 attached to the front end of the lead core containing cylinder 61, a chuck body 63 provided at the front end of the connecting cylinder 62, the chuck body 63 accommodated therein, and the connecting cylinder 62 A front end cylinder 64 that is movably mounted in the front-rear direction, a tightening ring 65 that is accommodated in the front end cylinder 64 and clamps the chuck body 63, the front end cylinder 64, and the connecting cylinder 62 And a chuck spring 66 that urges the front end cylinder 64 forward with respect to the connection cylinder 62, and includes the front end cylinder 64, the connection cylinder 62, and the lead core storage cylinder. 61, and a maximum outer diameter of the chuck spring 66 may be a requirement that has been formed smaller than the inner diameter of each of said coil springs 8.

前記第１の発明の多芯筆記具１は、前端筒体６４、連結筒体６２、鉛芯収容筒体６１、及びチャックスプリング６６の最大外径を、各々のコイルスプリング８の内径より小さく形成したことにより、シャープペンシルからなる筆記体６を軸筒２の後端の開口部４２から挿入する際、筆記体６がコイルスプリング８に引っ掛かることを回避し、筆記体６がコイルスプリング８内部にスムーズに挿通される。その結果、シャープペンシルからなる筆記体６の前端部外面が凸凹した形状を有していても、シャープペンシルからなる筆記体６を軸筒２後端の開口部４２から軸筒２内にスムーズに挿入することができる。尚、本発明で、コイルスプリング８とは、圧縮コイルスプリングである。尚、本発明で、前記コイルスプリング８の内径とは、非圧縮状態（フリー状態）の前記コイルスプリング８の内径をいう。 In the multi-core writing instrument 1 of the first invention, the maximum outer diameters of the front end cylinder body 64, the connecting cylinder body 62, the lead core housing cylinder body 61, and the chuck spring 66 are formed smaller than the inner diameters of the coil springs 8. This prevents the writing body 6 from being caught by the coil spring 8 when the writing body 6 made of a mechanical pencil is inserted from the opening 42 at the rear end of the shaft cylinder 2, so that the writing body 6 can smoothly enter the coil spring 8. Is inserted. As a result, even if the outer surface of the front end portion of the writing body 6 made of a mechanical pencil has an uneven shape, the writing body 6 made of a mechanical pencil can be smoothly inserted into the shaft tube 2 from the opening 42 at the rear end of the shaft tube 2. Can be inserted. In the present invention, the coil spring 8 is a compression coil spring. In the present invention, the inner diameter of the coil spring 8 refers to the inner diameter of the coil spring 8 in an uncompressed state (free state).

［２］本願の第２の発明は、前記第１の発明の多芯筆記具において、前記軸筒２の内壁にコイルスプリング８の前端が当接するスプリング支持部９を設け、前記スプリング支持部９に各々の筆記体６が挿通可能な複数の内孔９１を軸方向に貫設し、前記シャープペンシルからなる筆記体６の前端筒体６４、連結筒体６２、鉛芯収容筒体６１、及びチャックスプリング６６の最大外径を、前記各々の内孔９１の内径より小さく形成したことを要件とする。 [2] According to a second invention of the present application, in the multi-core writing instrument according to the first invention, a spring support portion 9 is provided on the inner wall of the shaft cylinder 2 so that the front end of the coil spring 8 abuts. A plurality of inner holes 91 through which each of the writing bodies 6 can be inserted are penetrated in the axial direction, and the front end cylinder body 64, the connecting cylinder body 62, the lead core housing cylinder body 61, and the chuck of the writing body 6 made of the mechanical pencil. It is a requirement that the maximum outer diameter of the spring 66 is smaller than the inner diameter of each inner hole 91.

前記第２の発明の多芯筆記具１は、シャープペンシルからなる筆記体６の前端筒体６４、連結筒体６２、鉛芯収容筒体６１、及びチャックスプリング６６の最大外径を、各々の内孔９１の内径より小さく形成したことにより、シャープペンシルからなる筆記体６を軸筒２の後端の開口部４２から挿入する際、筆記体６がスプリング支持部９の内孔９１に引っ掛かることを回避し、筆記体６がスプリング支持部９の内孔９１にスムーズに挿通される。その結果、シャープペンシルからなる筆記体６の前端部外面が凸凹した形状を有していても、シャープペンシルからなる筆記体６を軸筒２後端の開口部４２から軸筒２内にスムーズに挿入することができる。 The multi-core writing instrument 1 of the second invention has the maximum outer diameters of the front end cylinder 64, the connecting cylinder 62, the lead core accommodating cylinder 61, and the chuck spring 66 of the writing body 6 made of a mechanical pencil. Since the writing body 6 made of a mechanical pencil is inserted from the opening 42 at the rear end of the shaft cylinder 2 by being formed smaller than the inner diameter of the hole 91, the writing body 6 is caught in the inner hole 91 of the spring support portion 9. The cursive body 6 is smoothly inserted into the inner hole 91 of the spring support 9. As a result, even if the outer surface of the front end portion of the writing body 6 made of a mechanical pencil has an uneven shape, the writing body 6 made of a mechanical pencil can be smoothly inserted into the shaft tube 2 from the opening 42 at the rear end of the shaft tube 2. Can be inserted.

［３］本願の第３の発明は、前記第１または第２の発明の多芯筆記具において、前記シャープペンシルからなる筆記体６の前端筒体６４、連結筒体６２、鉛芯収容筒体６１、及びチャックスプリング６６の最大外径を、前記各々の窓孔４１の幅寸法Ｗより小さく形成したことを要件とする。 [3] A third invention of the present application is the multi-core writing instrument of the first or second invention, wherein the front end cylinder 64, the connecting cylinder 62, and the lead core containing cylinder 61 of the writing body 6 made of the mechanical pencil. And the maximum outer diameter of the chuck spring 66 is formed to be smaller than the width dimension W of each of the window holes 41.

前記第３の発明の多芯筆記具１は、シャープペンシルからなる筆記体６の前端筒体６４、連結筒体６２、鉛芯収容筒体６１、及びチャックスプリング６６の最大外径を、前記各々の窓孔４１の幅寸法Ｗより小さく形成したことにより、シャープペンシルからなる筆記体６を軸筒２の後端の開口部４２から挿入する際、筆記体６が、窓孔４１に引っ掛かることを回避し、スプリング支持部９の窓孔４１にスムーズに挿通される。その結果、シャープペンシルからなる筆記体６の前端部が凸凹した形状を有していても、シャープペンシルからなる筆記体６を軸筒２後端の開口部４２から軸筒２内にスムーズに挿入することができる。 The multi-core writing instrument 1 of the third invention has the maximum outer diameters of the front end cylinder body 64, the connecting cylinder body 62, the lead core housing cylinder body 61, and the chuck spring 66 of the writing body 6 made of a mechanical pencil. Since the writing body 6 made of a mechanical pencil is inserted from the opening 42 at the rear end of the shaft cylinder 2, the writing body 6 is prevented from being caught in the window hole 41 by forming the window hole 41 to be smaller than the width dimension W. Then, it is smoothly inserted into the window hole 41 of the spring support portion 9. As a result, even if the front end portion of the writing body 6 made of a mechanical pencil has an uneven shape, the writing body 6 made of a mechanical pencil is smoothly inserted into the shaft tube 2 from the opening 42 at the rear end of the shaft tube 2. can do.

［４］本願の第４の発明は、前記第１、第２または第３の発明の多芯筆記具において、シャープペンシルからなる筆記体６のペン先６４ａが軸筒２の前端孔３１から突出した状態において、操作体７の操作部７１を前方に押圧操作可能なよう、操作体７の操作部７１が窓孔４１より径方向外方に突出してなることを要件とする。 [4] According to a fourth invention of the present application, in the multi-core writing instrument of the first, second or third invention, the nib 64a of the writing body 6 made of a mechanical pencil protrudes from the front end hole 31 of the shaft cylinder 2. In the state, it is a requirement that the operation portion 71 of the operation body 7 protrudes radially outward from the window hole 41 so that the operation portion 71 of the operation body 7 can be pushed forward.

前記第４の発明の多芯筆記具１は、シャープペンシルからなる筆記体６のペン先６４ａが軸筒２の前端孔３１から外部に突出した状態において、操作体７の操作部７１を前方に押圧操作可能なよう、操作体７の操作部７１が窓孔４１より径方向外方に突出してなることにより、鉛芯の繰り出し操作が容易となる。 The multi-core writing instrument 1 according to the fourth aspect of the present invention presses the operating portion 71 of the operating body 7 forward in a state where the pen tip 64a of the writing body 6 made of a mechanical pencil protrudes from the front end hole 31 of the shaft cylinder 2. Since the operation part 71 of the operation body 7 protrudes radially outward from the window hole 41 so that it can be operated, the lead-out operation of the lead core is facilitated.

［５］本願の第５の発明は、前記第４の発明の多芯筆記具において、前記シャープペンシルからなる筆記体６の後端に連結された操作体７は、操作体７の表面からの操作部７１の径方向の最大突出長さＡが、操作体７の表面と操作体７の裏面との径方向の最大長さＢより大きく形成されることを要件とする。 [5] The fifth invention of the present application is the multi-core writing instrument according to the fourth invention, wherein the operating body 7 connected to the rear end of the writing body 6 made of the mechanical pencil is operated from the surface of the operating body 7. It is a requirement that the maximum protrusion length A in the radial direction of the portion 71 is formed to be larger than the maximum radial length B between the front surface of the operation body 7 and the back surface of the operation body 7.

前記第５の発明の多芯筆記具１は、シャープペンシルからなる筆記体６の後端に連結された操作体７において、操作体７表面からの操作部７１の径方向の最大突出長さＡを、操作体７の表面と操作体７の裏面との径方向の最大長さＢより大きく形成したことにより、シャープペンシルからなる筆記体６のペン先突出状態において、操作体７の操作部７１が窓孔４１より径方向外方に十分に突出されるため、操作部７１を直接指で前方に押圧でき、確実に、鉛芯の繰り出し操作を行うことができる。尚、本発明で、操作体７の表面とは、軸筒２内に収容された操作体７において、窓孔４１より露出される側の、操作部７１以外の面をいう。尚、本発明で、操作体７の裏面とは、軸筒２内に収容された操作体７において、軸筒の軸心方向に位置する側（即ち前側突出部７２側及び後側突出部７３側）の面をいう。 In the multi-core writing instrument 1 of the fifth invention, the operating body 7 connected to the rear end of the writing body 6 made of a mechanical pencil has a maximum protrusion length A in the radial direction of the operating portion 71 from the surface of the operating body 7. The operation portion 71 of the operation body 7 is formed in the pen tip protruding state of the writing body 6 made of a mechanical pencil by forming it longer than the maximum radial length B between the front surface of the operation body 7 and the back surface of the operation body 7. Since it protrudes sufficiently outward in the radial direction from the window hole 41, the operation portion 71 can be directly pressed forward with a finger, and the lead core can be reliably fed out. In the present invention, the surface of the operating body 7 refers to a surface other than the operating portion 71 on the side exposed from the window hole 41 in the operating body 7 accommodated in the shaft tube 2. In the present invention, the back surface of the operating body 7 refers to the side of the operating body 7 accommodated in the shaft cylinder 2 located in the axial direction of the shaft cylinder (that is, the front projecting portion 72 side and the rear projecting portion 73. Side).

［６］本願の第６の発明は、前記第１乃至５の何れかの発明において、前記シャープペンシルからなる筆記体６の後端（即ち鉛芯収容筒体６１の後端）に連結された操作体７の操作部７１に、シャープペンシルからなる筆記体６の内部（即ち鉛芯収容筒体６１の内部）に収容される鉛芯６７の、硬さ、太さ、または色を表示する識別表示部１０を設けたことを要件とする。 [6] The sixth invention of the present application is connected to the rear end of the writing body 6 made of the mechanical pencil (that is, the rear end of the lead core containing cylinder 61) in any one of the first to fifth inventions. Identification for displaying the hardness, thickness, or color of the lead core 67 accommodated in the writing body 6 made of a mechanical pencil (that is, the interior of the lead core housing cylinder 61) on the operation unit 71 of the operation body 7. It is a requirement that the display unit 10 be provided.

前記第６の発明の多芯筆記具１は、操作体７の操作部７１に、鉛芯６７の、硬さ、太さ、または色を表示する識別表示部１０を設けたことにより、シャープペンシルからなる筆記体６の内部に収容する鉛芯６７の、硬さ、太さ、または色を、容易に識別することができる。特に、シャープペンシルからなる筆記体６を、複数本、軸筒２内部に収容する場合、鉛芯６７の硬さ、鉛芯６７の太さ、または鉛芯６７の色を迅速且つ確実に識別選択し、好みの鉛芯を使用できる。 The multi-core writing instrument 1 according to the sixth aspect of the present invention is provided with an identification display unit 10 that displays the hardness, thickness, or color of the lead core 67 on the operation unit 71 of the operation body 7. Thus, the hardness, thickness, or color of the lead core 67 accommodated in the cursive body 6 can be easily identified. In particular, when a plurality of writing instruments 6 made of mechanical pencils are accommodated in the barrel 2, the hardness of the lead core 67, the thickness of the lead core 67, or the color of the lead core 67 can be identified and selected quickly and reliably. And you can use your favorite lead core.

尚、本発明で、軸筒２内に収容する筆記体６の本数は、２本以上であればよく、具体的には、２本、３本、４本、５本、６本等が挙げられる。 In the present invention, the number of the writing bodies 6 accommodated in the shaft cylinder 2 may be two or more, specifically, 2, 3, 4, 5, 6 or the like. It is done.

本発明は、シャープペンシルからなる筆記体を、軸筒の後端の開口部から軸筒内にスムーズに挿入することができる。 According to the present invention, a writing body made of a mechanical pencil can be smoothly inserted into the shaft tube from the opening at the rear end of the shaft tube.

図１乃至図６に本発明の実施の形態を示す。
本実施の形態の多芯筆記具１は、軸筒２内に複数本（具体的には２本）の筆記体６が前後方向に移動可能に収容されている。前記各々の筆記体６は、圧縮コイルスプリングよりなるコイルスプリング８により後方に付勢されている。 1 to 6 show an embodiment of the present invention.
In the multi-core writing instrument 1 of the present embodiment, a plurality (specifically, two) of writing bodies 6 are accommodated in a shaft tube 2 so as to be movable in the front-rear direction. Each of the writing bodies 6 is urged rearward by a coil spring 8 made of a compression coil spring.

（軸筒）
前記軸筒２は、先細状の円筒体からなる前軸３と、該前軸３の後端部と螺合または圧入により取り付けられる円筒状の後軸４とからなる。前記前軸３の前端には、筆記体６のペン先が突出可能な前端孔３１が軸方向に貫設される。前記前軸３及び後軸４は、合成樹脂（例えば、ポリカーボネイト等）または金属により形成される。 (Shaft tube)
The shaft cylinder 2 includes a front shaft 3 formed of a tapered cylindrical body, and a cylindrical rear shaft 4 attached to the rear end portion of the front shaft 3 by screwing or press-fitting. At the front end of the front shaft 3, a front end hole 31 through which the pen tip of the writing body 6 can protrude is provided in the axial direction. The front shaft 3 and the rear shaft 4 are made of synthetic resin (for example, polycarbonate or the like) or metal.

前記後軸４の後部の側壁には、複数本（具体的には２本）の前後方向に延びる細長状の窓孔４１が、径方向に貫設される。前記２本の窓孔４１は、互いに、軸線に対して対称の位置に形成される。 A plurality (specifically, two) elongated window holes 41 extending in the front-rear direction are provided in a radial direction in the rear side wall of the rear shaft 4. The two window holes 41 are formed at positions symmetrical with respect to the axis.

また、前記後軸４の窓孔４１の相互間の側壁内面には、前後方向に延びるリブよりなる係止壁部４３が形成され、前記係止壁部４３に、ペン先が突出した際の筆記体６の操作体７の後端が係止される。 Further, a locking wall portion 43 made of a rib extending in the front-rear direction is formed on the inner surface of the side wall between the window holes 41 of the rear shaft 4, and when the pen tip protrudes into the locking wall portion 43. The rear end of the operating body 7 of the writing body 6 is locked.

前記後軸４の窓孔４１の相互間の側壁外面には、クリップ４４が設けられる。 A clip 44 is provided on the outer surface of the side wall between the window holes 41 of the rear shaft 4.

（蓋部）
前記後軸４の後端部には、前記開口部４２を開閉自在にする蓋部５が回動自在に設けられる。前記蓋部５の一端部は、クリップ４４基部に、ヒンジ部５２により回動自在に接続される。前記ヒンジ部５２は、ペン先下向きでクリップ４４を正面視したときのクリップ４４の左右方向に延設され、それにより、前記蓋部５は、略前後方向に回動自在となる。前記蓋部５の前面には、当接壁部５１が形成される。前記当接壁部５１に、没入状態の筆記体６の後端に連結された操作体７の後端が、衝止される。本実施の形態では、前記ヒンジ部５２は、具体的には、回動軸により回動自在に接続される構成が採用されているが、これ以外にも、屈曲変形可能な可撓性を有する連結部または薄肉部により一体に接続される構成であってもよい。 (Cover)
At the rear end portion of the rear shaft 4, a lid portion 5 that can open and close the opening portion 42 is provided rotatably. One end of the lid 5 is pivotally connected to the base of the clip 44 by a hinge 52. The hinge portion 52 extends in the left-right direction of the clip 44 when the clip 44 is viewed from the front with the pen tip facing downward, whereby the lid portion 5 is rotatable in a substantially front-rear direction. A contact wall 51 is formed on the front surface of the lid 5. The rear end of the operating body 7 connected to the rear end of the immersive writing body 6 is bumped to the contact wall 51. In the present embodiment, specifically, the hinge portion 52 is configured to be pivotably connected by a pivot shaft. However, in addition to this, the hinge portion 52 has flexibility capable of bending deformation. The structure connected integrally by a connection part or a thin part may be sufficient.

前記蓋部５の他端部の前面には、係合部５３が設けられる（具体的には係合凹部または係合孔部が形成される）。後軸４の後端には、前記係合部５３と係合可能な被係合部４５が設けられる（具体的には係合凸部が突設される）。前記係合部５３（係合凹部または係合孔部）の内面には、内向突起が形成され、一方、前記被係合部４５（係合凸部）の外面には、前記内向突起と乗り越え係止可能な外向突起が形成される。 An engagement portion 53 is provided on the front surface of the other end portion of the lid portion 5 (specifically, an engagement recess or an engagement hole portion is formed). An engaged portion 45 that can be engaged with the engaging portion 53 is provided at the rear end of the rear shaft 4 (specifically, an engaging convex portion protrudes). An inward projection is formed on the inner surface of the engagement portion 53 (engagement recess or engagement hole), while the outer surface of the engaged portion 45 (engagement projection) climbs over the inward projection. A lockable outward projection is formed.

前記係合部５３と前記被係合部４５とは、蓋部５が開口部４２を閉鎖した際、互いに係合状態にあり（具体的には内向突起と外向突起が乗り越え係止状態にあり）、コイルスプリング８の後方への付勢による操作体７と蓋部５前面の当接壁部５１との当接では、その係合状態は解除されず、蓋部５が開くことはない。 The engaging portion 53 and the engaged portion 45 are in an engaged state with each other when the lid portion 5 closes the opening 42 (specifically, the inward projection and the outward projection are overcoming and locked) ), The contact between the operating body 7 and the abutting wall 51 on the front surface of the lid 5 by biasing the coil spring 8 backward does not release the engaged state, and the lid 5 does not open.

また、前記係合部５３と被係合部４５の構成以外にも、前記係合部５３が係合凸部よりなり、前記被係合部４５が係合凹部または係合孔部からなる構成でもよい。 In addition to the configuration of the engaging portion 53 and the engaged portion 45, the engaging portion 53 is an engaging convex portion, and the engaged portion 45 is an engaging concave portion or an engaging hole portion. But you can.

（筆記体）
前記各々の筆記体６は、ノック式のシャープペンシルであり、鉛芯収容筒体６１と、該鉛芯収容筒体６１の前端に鉛芯補充可能に着脱自在に取り付けられる連結筒体６２と、該連結筒体６２の前端に設けたチャック体６３と、前記連結筒体６２前端部及び前記チャック体６３を内部に収容し、前記連結筒体６２に対して前後方向に移動可能に取り付けられる前端筒体６４と、該前端筒体６４内に収容され、前記チャック体６３を締め付ける締め付けリング６５と、前記前端筒体６４と前記連結筒体６２との間に介在され、前記前端筒体６４を前記連結筒体６２に対して前方に付勢するチャックスプリング６６とからなる。前記前端筒体６４の前端部が筆記体６のペン先６４ａとなる。 (Cursive)
Each of the writing bodies 6 is a knock type mechanical pencil, a lead core housing cylinder 61, and a connecting cylinder 62 removably attached to the front end of the lead core housing cylinder 61 so that a lead core can be replenished; The chuck body 63 provided at the front end of the connecting cylinder 62, the front end of the connecting cylinder 62 and the chuck body 63 are housed therein, and the front end is attached to the connecting cylinder 62 so as to be movable in the front-rear direction. A cylindrical body 64, a fastening ring 65 that is accommodated in the front end cylindrical body 64 and clamps the chuck body 63, and is interposed between the front end cylindrical body 64 and the connecting cylindrical body 62; It comprises a chuck spring 66 that urges the connecting cylinder 62 forward. The front end portion of the front end cylindrical body 64 becomes the pen tip 64 a of the writing body 6.

前記鉛芯収容筒体６１内には、鉛芯６７が収容される。前記鉛芯収容筒体６１をチャックスプリング６６の付勢に抗して前端筒体６４に対し前方に押圧すると、鉛芯収容筒体６１の前進とともに、連結筒体６２及びチャック体６３が前進し、チャック体６３が締め付けリング６５から離れる。前記チャック体６３の前進に伴い鉛芯６７が前方に繰り出され、前記前端筒体６４の前端開口部から鉛芯６７が前方に突出される。そして、前記鉛芯収容筒体６１の前端筒体６４に対する前方への押圧を解除すると、チャック体６３がチャックスプリング６６の付勢によって後退し、締め付けリング６５がチャック体６３の外周面に係合し、締め付けリング６５がチャック体６３を径方向内方に締め付けることにより、チャック体６３が、前記繰り出された鉛芯６７を再び保持する。それにより、前記前端筒体６４の前端開口部からの鉛芯６７の突出状態が維持される。 A lead core 67 is accommodated in the lead core accommodating cylinder 61. When the lead core housing cylinder 61 is pressed forward against the front end cylinder 64 against the bias of the chuck spring 66, the connecting cylinder 62 and the chuck body 63 move forward as the lead core housing cylinder 61 advances. The chuck body 63 is separated from the tightening ring 65. As the chuck body 63 advances, the lead core 67 is fed forward, and the lead core 67 projects forward from the front end opening of the front end cylinder 64. When the forward pressing of the lead core accommodating cylinder 61 against the front end cylinder 64 is released, the chuck body 63 is retracted by the bias of the chuck spring 66 and the tightening ring 65 is engaged with the outer peripheral surface of the chuck body 63. Then, the tightening ring 65 tightens the chuck body 63 inward in the radial direction, so that the chuck body 63 again holds the lead core 67 that has been fed out. Thereby, the protruding state of the lead core 67 from the front end opening of the front end cylindrical body 64 is maintained.

本実施の形態において、前記前端筒体６４、前記連結筒体６２、前記鉛芯収容筒体６１、及び前記チャックスプリング６６の最大外径は、前記各々のコイルスプリング８の内径（非圧縮状態のコイルスプリングの内径）より小さく形成される。 In the present embodiment, the maximum outer diameters of the front end cylinder body 64, the connection cylinder body 62, the lead core housing cylinder body 61, and the chuck spring 66 are the inner diameters of the respective coil springs 8 (in an uncompressed state). It is formed smaller than the inner diameter of the coil spring.

本実施の形態において、前記前端筒体６４、前記連結筒体６２、前記鉛芯収容筒体６１、及び前記チャックスプリング６６の最大外径は、スプリング支持部９の各々の内孔９１の内径より小さく形成される。 In the present embodiment, the maximum outer diameters of the front end cylinder body 64, the connection cylinder body 62, the lead core housing cylinder body 61, and the chuck spring 66 are larger than the inner diameter of each inner hole 91 of the spring support portion 9. It is formed small.

本実施の形態において、前記前端筒体６４、前記連結筒体６２、前記鉛芯収容筒体６１、及び前記チャックスプリング６６の最大外径は、前記各々の窓孔４１の幅寸法Ｗより小さく形成される。 In the present embodiment, the maximum outer diameters of the front end cylinder 64, the connection cylinder 62, the lead core accommodation cylinder 61, and the chuck spring 66 are formed smaller than the width dimension W of each of the window holes 41. Is done.

（操作体）
前記各々の筆記体６の後端（即ち鉛芯収容筒体６１の後端開口部４２）には、操作体７が取り付けられる。前記各々の操作体７は、操作部７１と、後側突出部７３と、前側突出部７２と、嵌入部７４と、鍔部７５とを備える。前記操作部７１は、操作体７の後端部に形成され且つ軸筒２の窓孔４１から外部に突出される。前記後側突出部７３は、操作体７の操作部７１の反対側に設けられる。前記前側突出部７２は、操作体７の操作部７１の反対側の後側突出部７３の前方に設けられる。前記嵌入部７４は、操作体７の前端部に形成され且つ鉛芯収容筒体６１の後端開口部４２に嵌入される。前記鍔部７５は、前記嵌入部７４の後方に形成される。前記鍔部７５の前面には、コイルスプリング８の後端が係止される。 (Operation body)
The operating body 7 is attached to the rear end of each of the writing bodies 6 (that is, the rear end opening 42 of the lead core containing cylinder 61). Each of the operating bodies 7 includes an operating portion 71, a rear side protruding portion 73, a front side protruding portion 72, a fitting portion 74, and a flange portion 75. The operation portion 71 is formed at the rear end portion of the operation body 7 and protrudes to the outside from the window hole 41 of the shaft cylinder 2. The rear protruding portion 73 is provided on the opposite side of the operating portion 71 of the operating body 7. The front protrusion 72 is provided in front of the rear protrusion 73 on the opposite side of the operation portion 71 of the operation body 7. The insertion portion 74 is formed at the front end portion of the operation body 7 and is inserted into the rear end opening 42 of the lead core containing cylinder 61. The flange portion 75 is formed behind the fitting portion 74. The rear end of the coil spring 8 is locked to the front surface of the flange portion 75.

また、前記操作体７の両方の側面には係止突起（図示せず）が形成される。前記係止突起は窓孔４１の両側壁に抜け止め係合可能である。前記操作体７は、合成樹脂（例えば、ポリプロピレン樹脂、ＡＢＳ樹脂、ポリアセタール樹脂等）の成形体により得られる。 Further, locking projections (not shown) are formed on both side surfaces of the operating body 7. The locking projections can be engaged with both side walls of the window hole 41 to prevent it from coming off. The operation body 7 is obtained by a molded body of a synthetic resin (for example, polypropylene resin, ABS resin, polyacetal resin, etc.).

筆記体６のペン先６４ａが没入状態のとき、その筆記体６に取り付けられた操作体７の後端部は、窓孔４１後端に形成された当接壁部５１に衝止される。一方、筆記体６のペン先６４ａが突出状態のとき、その筆記体６に取り付けられた操作体７の後端部は、軸筒２の内壁に形成された係止壁部４３に係止される。 When the pen point 64 a of the writing body 6 is in the immersed state, the rear end portion of the operating body 7 attached to the writing body 6 is hit by a contact wall portion 51 formed at the rear end of the window hole 41. On the other hand, when the pen point 64 a of the writing body 6 is in a protruding state, the rear end portion of the operating body 7 attached to the writing body 6 is locked to a locking wall portion 43 formed on the inner wall of the shaft cylinder 2. The

ペン先没入状態にある筆記体６の後端に連結された操作体７の前側突出部７２は、その操作体７の操作部７１を前方にスライド操作した際、先に突出状態にある他の筆記体６の後端に連結された操作体７の後側突出部７３と当接され、他の筆記体６のペン先突出状態が解除される。 The front projecting portion 72 of the operating body 7 connected to the rear end of the writing body 6 in the pen tip immersing state is the other projecting state when the operating portion 71 of the operating body 7 is slid forward. The pendant projecting state of the other cursive body 6 is released by contacting the rear projecting portion 73 of the operating body 7 connected to the rear end of the cursive body 6.

（識別表示部）
前記各々の操作体７の操作部７１の外面には、識別表示部１０が設けられる。前記識別表示部１０は、例えば、その操作体７が連結される鉛芯収容筒体６１の内部に収容される鉛芯６７の硬さを表示するもの、その操作体７が連結される鉛芯収容筒体６１の内部に収容される鉛芯６７の太さを表示するもの、またはその操作体７が連結される鉛芯収容筒体６１の内部に収容される鉛芯６７の色を表示するものが挙げられる。 (Identification display part)
The identification display unit 10 is provided on the outer surface of the operation unit 71 of each operation body 7. The identification display unit 10 displays, for example, the hardness of the lead core 67 accommodated in the lead core containing cylinder 61 to which the operating body 7 is connected, and the lead core to which the operating body 7 is connected. Displaying the thickness of the lead core 67 housed in the housing cylinder 61 or the color of the lead core 67 housed in the lead core housing cylinder 61 to which the operating body 7 is connected. Things.

前記鉛芯の硬さを表示する識別表示部１０は、例えば、２Ｈ、Ｈ、ＨＢ、Ｂ、２Ｂ等の文字記号が挙げられる。前記鉛芯の太さを表示する識別表示部１０は、例えば、０．３、０．５、０．７等の文字記号が挙げられる。前記鉛芯の色を表示する識別表示部１０は、鉛芯の色と同色の着色層が挙げられる。 Examples of the identification display unit 10 that displays the hardness of the lead core include character symbols such as 2H, H, HB, B, and 2B. As for the identification display part 10 which displays the thickness of the said lead core, character symbols, such as 0.3, 0.5, 0.7, are mentioned, for example. As for the identification display part 10 which displays the color of the said lead core, the colored layer of the same color as the color of a lead core is mentioned.

本実施の形態では、前記識別表示部１０は、操作体７の操作部７１の側面に設けられる（好ましくは操作体７の操作部７１の両側面に設けられる）。前記操作部７１の側面は、操作部７１の表面に比べ大きい面積を有する。そのため、遠くからでも容易に識別可能な比較的大きな識別表示部１０を形成できる。前記識別表示部１０は、印刷、シール貼付、凸設、凹設等の手段により設けられる。前記識別表示部１０は、ペン先突出状態にある筆記体６の後端に連結された操作体７の、径方向外方に突出される操作部７１の側面に設けられる。 In the present embodiment, the identification display unit 10 is provided on the side surface of the operation unit 71 of the operation body 7 (preferably provided on both side surfaces of the operation unit 71 of the operation body 7). The side surface of the operation unit 71 has a larger area than the surface of the operation unit 71. Therefore, a relatively large identification display portion 10 that can be easily identified even from a distance can be formed. The identification display unit 10 is provided by means such as printing, sticking a sticker, protruding, or recessed. The identification display unit 10 is provided on the side surface of the operation unit 71 protruding outward in the radial direction of the operation body 7 connected to the rear end of the writing body 6 in the pen tip protruding state.

前記操作体７は、操作体７表面からの操作部７１の径方向の最大突出長さＡが、操作体７の表面と操作体７の裏面との径方向の最大長さＢより大きく形成される。それにより、筆記体６のペン先６４ａが軸筒２の前端孔３１から突出した状態において、操作体７の操作部７１を前方に押圧操作可能（即ち鉛芯繰り出し操作可能）なよう、操作体７の操作部７１が窓孔４１より径方向外方に大きく突出される。 The operating body 7 is formed such that the maximum protruding length A in the radial direction of the operating portion 71 from the surface of the operating body 7 is larger than the maximum radial length B between the surface of the operating body 7 and the back surface of the operating body 7. The Thereby, in a state where the nib 64a of the writing body 6 protrudes from the front end hole 31 of the shaft cylinder 2, the operation body 71 is operated so that the operation portion 71 of the operation body 7 can be pushed forward (that is, the lead lead-out operation can be performed). 7 operation part 71 protrudes largely radially outward from the window hole 41.

尚、本実施の形態では、操作体７表面からの操作部７１の径方向の最大突出長さＡは、操作部７１頂部と操作体７表面との間の径方向の長さである。本実施の形態では、操作体７の表面と操作体７の裏面との径方向の最大長さＢは、操作体７の表面と後側突出部７３頂部との径方向の長さである。 In the present embodiment, the maximum protrusion length A in the radial direction of the operation portion 71 from the surface of the operation body 7 is the length in the radial direction between the top of the operation portion 71 and the surface of the operation body 7. In the present embodiment, the maximum radial length B between the front surface of the operating body 7 and the back surface of the operating body 7 is the radial length between the front surface of the operating body 7 and the top of the rear protrusion 73.

（スプリング支持部）
軸筒２の内壁（即ち後軸４の内壁）には、円筒状のスプリング支持部９が設けられる。前記スプリング支持部９は、筆記体６が挿通される複数（具体的には２個）の内孔９１が軸方向に貫設されている。前記スプリング支持部９の後面と、各々の操作体７の鍔部７５の前面との間には、コイルスプリング８が配置される。前記各々のコイルスプリング８の内部に筆記体６が遊挿されるとともに、各々のコイルスプリング８の前端はスプリング支持部９の後面により係止され、各々のコイルスプリング８の後端は操作体７の鍔部７５の前面に係止される。 (Spring support)
A cylindrical spring support portion 9 is provided on the inner wall of the shaft cylinder 2 (that is, the inner wall of the rear shaft 4). The spring support portion 9 has a plurality of (specifically, two) inner holes 91 through which the writing body 6 is inserted in the axial direction. A coil spring 8 is disposed between the rear surface of the spring support portion 9 and the front surface of the collar portion 75 of each operation body 7. The writing body 6 is loosely inserted into each coil spring 8, the front end of each coil spring 8 is locked by the rear surface of the spring support 9, and the rear end of each coil spring 8 is the operation body 7. Locked to the front surface of the collar portion 75.

また、スプリング支持部９の後面の各々の内孔９１の周囲には、後方に突出する筒状突出部よりなる保持部が形成される。前記各々の保持部の内面は、各々のコイルスプリング８の前端部外面が圧入保持される。それにより、各々の筆記体６及び操作体７を交換する際、軸筒２内から開口部４２を通して各々のコイルスプリング８が脱落することを防止できる。 Further, around each inner hole 91 on the rear surface of the spring support portion 9, a holding portion made of a cylindrical protruding portion protruding rearward is formed. The inner surface of each holding portion is press-fitted and held at the outer surface of the front end portion of each coil spring 8. Thereby, when each writing body 6 and the operation body 7 are exchanged, each coil spring 8 can be prevented from dropping out from the shaft cylinder 2 through the opening 42.

前記各々のコイルスプリング８は、各々の操作体７（即ち各々の筆記体６）を、常時、後方に付勢している。前記各々のコイルスプリング８は、ペン先突出状態及びペン先没入状態のいずれにおいても圧縮状態（即ち筆記体６が後方に付勢された状態）にあり、それにより、各々の操作体７の前後のがたつきが防止される。また、前記各々のコイルスプリング８は、その内部に筆記体６が挿通される前の状態では、非圧縮状態（フリー状態）となる。 Each coil spring 8 always urges each operation body 7 (that is, each writing body 6) backward. Each of the coil springs 8 is in a compressed state (that is, a state in which the writing body 6 is urged rearward) in both the pen tip protruding state and the pen tip immersing state. Shaking is prevented. Each coil spring 8 is in an uncompressed state (free state) before the writing body 6 is inserted through the coil spring 8.

（ペン先の出没）
本実施の形態におけるペン先の出没作動について説明する。
一つの操作体７の操作部７１をコイルスプリング８の後方付勢に抗して窓孔４１に沿って前方にスライド操作すると、そのスライド操作された操作体７の前側突出部７２が、先に突出状態にある他の筆記体６の操作部７１の後側突出部７３を径方向外方に持ち上げる。それにより、軸筒２内壁の係止壁部４３と他の筆記体６の操作体７との係止状態が解除され、他の筆記体６がコイルスプリング８の後方付勢により後方に移動され、他の筆記体６のペン先６４ａが軸筒２内に没入され、他の筆記体６の操作部７１の後端が窓孔４１後端の当接壁部５１に当接衝止される。前記他の筆記体６のペン先６４ａの没入と同時に、前記前方にスライド操作した操作体７に連結された筆記体６のペン先６４ａが、軸筒２の前端孔３１より外部に突出されるとともに、前方にスライド操作された操作体７の後端が軸筒２内壁の係止壁部４３に係止され、そのペン先突出状態が維持される。 (Invitation of the nib)
The pen tip operation in the present embodiment will be described.
When the operating portion 71 of one operating body 7 is slid forward along the window hole 41 against the back bias of the coil spring 8, the front projecting portion 72 of the operating body 7 that has been slid is moved forward. The rear protrusion 73 of the operation part 71 of the other cursive body 6 in the protruding state is lifted radially outward. As a result, the locked state of the locking wall 43 of the inner wall of the shaft cylinder 2 and the operating body 7 of the other writing body 6 is released, and the other writing body 6 is moved rearward by the rear bias of the coil spring 8. The pen tip 64a of the other writing body 6 is immersed in the shaft cylinder 2, and the rear end of the operation portion 71 of the other writing body 6 is brought into contact with and abutted against the contact wall portion 51 at the rear end of the window hole 41. . Simultaneously with the immersion of the nib 64 a of the other writing body 6, the nib 64 a of the writing body 6 connected to the operating body 7 slid forward is protruded to the outside from the front end hole 31 of the shaft cylinder 2. At the same time, the rear end of the operating body 7 that has been slid forward is locked to the locking wall 43 of the inner wall of the shaft tube 2, and the pen tip protruding state is maintained.

（鉛芯の繰り出し操作）
ペン先６４ａを軸筒の前端孔３１より前方に突出された状態において、そのペン先突出状態にある筆記体６に連結された操作体７の操作部７１を前方に押圧操作すると、筆記体の前端筒体６４の外面が軸筒２の前端部内壁に係止されるとともに、鉛芯収容筒体６４、連結筒体６２、及びチャック体６３が、チャックスプリング６５の付勢に抗して前方に移動される。それに伴い、チャック体６３がチャックリング６５の締め付けから開放されるとともに、鉛芯６７が前方に繰り出され、前端筒体６４の前端開口部から鉛芯６７が前方に突出される。そして、操作部７１の前方への押圧を解除すると、チャック体６３がチャックスプリング６６の付勢によって後退し、締め付けリング６５がチャック体６３の外周面に係合し、締め付けリング６５がチャック体６３を径方向内方に締め付けることにより、チャック体６３が、前記繰り出された鉛芯６７を再び保持する。それにより、前端筒体６４の前端開口部（ペン先６４ａの前端）からの鉛芯６７の突出状態が維持される。 (Lead lead feeding operation)
In a state where the pen tip 64a protrudes forward from the front end hole 31 of the shaft cylinder, when the operation portion 71 of the operating body 7 connected to the writing body 6 in the pen tip protruding state is pressed forward, The outer surface of the front end cylinder 64 is locked to the inner wall of the front end portion of the shaft cylinder 2, and the lead core housing cylinder 64, the connecting cylinder 62, and the chuck body 63 are moved forward against the bias of the chuck spring 65. Moved to. Accordingly, the chuck body 63 is released from the clamping of the chuck ring 65, the lead core 67 is fed forward, and the lead core 67 protrudes forward from the front end opening of the front end cylinder 64. When the forward pressing of the operation unit 71 is released, the chuck body 63 is retracted by the bias of the chuck spring 66, the fastening ring 65 is engaged with the outer peripheral surface of the chuck body 63, and the fastening ring 65 is engaged with the chuck body 63. Is clamped inward in the radial direction, and the chuck body 63 holds the lead core 67 drawn out again. Thereby, the protruding state of the lead core 67 from the front end opening (front end of the nib 64a) of the front end cylindrical body 64 is maintained.

（筆記体及び操作体の交換）
本実施の形態における筆記体６及び操作体７の交換について説明する。
筆記体６を交換する際、蓋部５が軸筒２の後端の開口部４２を閉鎖した状態（図１参照）から、蓋部５のヒンジ部５２と反対側の操作端部を後方に押圧し、係合部５３と被係合部４５との係合を解除し、蓋部５を後方に回動させ、軸筒２の後端の開口部４２を開口する。前記開口部４２を開口させると、前記開口部４２から各々の操作体７が、コイルスプリング８の後方付勢により後方外部に突出される。前記軸筒２の後端の開口部４２が開口した状態（図３参照）で、操作体７を取り出すことにより、その操作体７と互いに連結状態にある筆記体６を、前記開口部４２を通して軸筒２内から取り出し、その後、互いに連結状態にある新たな筆記体６と新たな操作体７とを前記開口部４２を通して軸筒２内に挿入する。そして、蓋部５の当接壁部５１に各々の操作体７を当接させ、各々の操作体７を前方に押圧しながら蓋部５を前方に回動させ、その後、係合部５３と被係止部とを係合させ、開口部４２を閉鎖する。これにより、筆記体６及び操作体７の交換作業が終了する。 (Replace cursive and operating body)
The replacement of the writing body 6 and the operation body 7 in the present embodiment will be described.
When the writing body 6 is replaced, the operation end portion on the opposite side of the lid portion 5 from the hinge portion 52 is moved backward from the state in which the lid portion 5 closes the opening 42 at the rear end of the shaft cylinder 2 (see FIG. 1). By pressing, the engagement between the engaging portion 53 and the engaged portion 45 is released, the lid portion 5 is rotated rearward, and the opening 42 at the rear end of the shaft tube 2 is opened. When the opening 42 is opened, each operating body 7 is protruded from the opening 42 to the outside by the rear bias of the coil spring 8. In the state where the opening 42 at the rear end of the shaft cylinder 2 is opened (see FIG. 3), the writing body 6 connected to the operation body 7 is passed through the opening 42 by taking out the operation body 7. The new writing body 6 and the new operating body 7 which are taken out from the shaft cylinder 2 and are connected to each other are inserted into the shaft cylinder 2 through the opening 42. Then, each operating body 7 is brought into contact with the contact wall 51 of the lid 5, and the lid 5 is rotated forward while pressing each operating body 7 forward. The opening 42 is closed by engaging the locked portion. Thereby, the exchange work of the writing body 6 and the operation body 7 is completed.

本発明の多芯筆記具の実施の形態の全ペン先没入状態（非筆記状態）を示す縦断面図である。It is a longitudinal cross-sectional view which shows the all-pen-tip immersion state (non-writing state) of embodiment of the multi-core writing instrument of this invention. 図１の多芯筆記具の一つのペン先が突出した状態（筆記状態）を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state (writing state) in which one nib of the multi-core writing instrument of FIG. 1 protruded. 図１の多芯筆記具の後端の開口部を開口した状態を示す側面図である。It is a side view which shows the state which opened the opening part of the rear end of the multi-core writing instrument of FIG. 図１の筆記体の前端部を示す拡大縦断面図である。It is an expanded longitudinal cross-sectional view which shows the front-end part of the cursive body of FIG. 図１の筆記体後端部及び操作体を示す拡大縦断面図である。FIG. 2 is an enlarged vertical cross-sectional view showing a trailing end portion and an operation body of the cursive body of FIG. 図１の互いに連結状態にある筆記体及び操作体を示す外観図である。It is an external view which shows the writing body and operation body in a mutually connected state of FIG.

符号の説明Explanation of symbols

１ 多芯筆記具
２ 軸筒
３ 前軸
３１ 前端孔
４ 後軸
４１ 窓孔
４２ 開口部
４３ 係止壁部
４４ クリップ
４５ 被係合部
５ 蓋部
５１ 当接壁部
５２ ヒンジ部
５３ 係合部
６ 筆記体
６１ 鉛芯収容筒体
６２ 連結筒体
６３ チャック体
６４ 前端筒体
６４ａ ペン先
６５ 締め付けリング
６６ チャックスプリング
６７ 鉛芯
７ 操作体
７１ 操作部
７２ 前側突出部
７３ 後側突出部
７４ 嵌入部
７５ 鍔部
８ コイルスプリング
９ スプリング支持部
９１ 内孔
１０ 識別表示部
Ｗ 窓孔の幅寸法
Ａ 操作体の表面からの操作部の径方向の最大突出長さ
Ｂ 操作体の表面と操作体の裏面との径方向の最大長さ DESCRIPTION OF SYMBOLS 1 Multi-core writing instrument 2 Shaft cylinder 3 Front shaft 31 Front end hole 4 Rear shaft 41 Window hole 42 Opening part 43 Locking wall part 44 Clip 45 Engagement part 5 Lid part 51 Contact wall part 52 Hinge part 53 Engagement part 6 Writing body 61 Lead core containing cylinder 62 Connection cylinder 63 Chuck body 64 Front end cylinder 64a Nib 65 Tightening ring 66 Chuck spring 67 Lead core 7 Operation body 71 Operation part 72 Front projection part 73 Rear projection part 74 Insertion part 75鍔 part 8 Coil spring 9 Spring support part 91 Inner hole 10 Identification display part W Window hole width dimension A Maximum projecting length B in the radial direction of the operation part from the surface of the operation object The surface of the operation object and the back surface of the operation object Maximum radial length of

Claims (6)

軸筒内に複数の筆記体を前後方向に移動可能に収容し、前記各々の筆記体をコイルスプリングにより後方に付勢し、前記各々の筆記体の後端に操作体を連結し、軸筒の側壁に前後方向に延びる複数の窓孔を径方向に貫設し、前記各々の窓孔から径方向外方に前記各々の操作体の操作部を突出させ、一つの操作体を窓孔に沿って前方にスライドさせることにより、その一つの操作体に連結された筆記体のペン先を軸筒の前端孔から突出させるとともに、先に突出状態にあった他の筆記体のペン先を軸筒内に没入させてなり、さらに、軸筒の後端に、窓孔を後方に開口させる開閉自在の開口部を設け、前記開口部を介して筆記体及び操作体を、軸筒内から取り外し可能且つ軸筒内に挿入可能に構成した多芯筆記具であって、
少なくとも筆記体の一つがノック式のシャープペンシルであり、
前記シャープペンシルが、鉛芯収容筒体と、該鉛芯収容筒体の前端に取り付けられる連結筒体と、該連結筒体の前端に設けたチャック体と、前記チャック体を内部に収容し且つ前記連結筒体に対して前後方向に移動可能に取り付けられる前端筒体と、該前端筒体内に収容され且つ前記チャック体を締め付ける締め付けリングと、前記前端筒体と前記連結筒体との間に介在され、前記前端筒体を前記連結筒体に対して前方に付勢するチャックスプリングとからなり、
前記前端筒体、前記連結筒体、前記鉛芯収容筒体、及び前記チャックスプリングの最大外径を、前記各々のコイルスプリングの内径より小さく形成したことを特徴とする多芯筆記具。 A plurality of writing bodies are accommodated in the shaft cylinder so as to be movable in the front-rear direction, each writing body is urged rearward by a coil spring, and an operating body is connected to a rear end of each writing body. A plurality of window holes extending in the front-rear direction are provided in the side wall of each of the plurality of window holes in the radial direction, the operation portions of the respective operation bodies project radially outward from the respective window holes, and one operation body serves as the window hole. The pen tip of the cursive body connected to the one operation body is projected from the front end hole of the shaft cylinder, and the pen tip of the other cursive body that has been in the projecting state is pivoted. In addition, an openable and closable opening that opens the window hole to the rear is provided at the rear end of the shaft cylinder, and the writing body and the operating body are removed from the shaft cylinder through the opening. A multi-core writing instrument configured to be capable of being inserted into a shaft cylinder,
At least one of the cursive letters is a knock-type mechanical pencil,
The mechanical pencil includes a lead core containing cylinder, a connecting cylinder attached to the front end of the lead core containing cylinder, a chuck body provided at the front end of the connecting cylinder, the chuck body being accommodated therein, and A front end cylinder that is attached to the connection cylinder so as to be movable in the front-rear direction, a tightening ring that is accommodated in the front end cylinder and that clamps the chuck body, and a gap between the front end cylinder and the connection cylinder A chuck spring that is interposed and biases the front end cylinder forward with respect to the connection cylinder;
The multi-core writing instrument, wherein the front end cylinder, the connecting cylinder, the lead core containing cylinder, and the chuck spring have a maximum outer diameter smaller than an inner diameter of each of the coil springs. 前記軸筒の内壁にコイルスプリングの前端が当接するスプリング支持部を設け、前記スプリング支持部に各々の筆記体が挿通可能な複数の内孔を軸方向に貫設し、前記シャープペンシルからなる筆記体の前端筒体、連結筒体、鉛芯収容筒体、及びチャックスプリングの最大外径を、前記各々の内孔の内径より小さく形成した請求項１記載の多芯筆記具。 A writing support comprising the mechanical pencil is provided on the inner wall of the shaft cylinder with a spring support portion with which a front end of a coil spring abuts, and a plurality of inner holes through which each writing body can be inserted in the spring support portion in the axial direction. The multi-core writing instrument according to claim 1, wherein the maximum outer diameters of the front end cylindrical body, the connecting cylindrical body, the lead core containing cylindrical body, and the chuck spring are smaller than the inner diameter of each of the inner holes. 前記シャープペンシルからなる筆記体の前端筒体、連結筒体、鉛芯収容筒体、及びチャックスプリングの最大外径を、前記各々の窓孔の幅寸法より小さく形成した請求項１記載の多芯筆記具。 The multi-core according to claim 1, wherein a maximum outer diameter of a front end cylinder, a connecting cylinder, a lead core housing cylinder, and a chuck spring of the writing body made of the mechanical pencil is smaller than a width dimension of each of the window holes. Writing instrument. 前記シャープペンシルからなる筆記体のペン先が軸筒の前端孔から突出した状態において、操作体の操作部を前方に押圧操作可能なよう、操作体の操作部が窓孔より径方向外方に突出してなる請求項１乃至３の何れか一つに記載の多芯筆記具。 In a state where the pen tip of the writing body made of the mechanical pencil protrudes from the front end hole of the shaft cylinder, the operation portion of the operation body is radially outward from the window hole so that the operation portion of the operation body can be pressed forward. The multi-core writing instrument according to any one of claims 1 to 3, which protrudes. 前記シャープペンシルからなる筆記体の後端に連結された操作体は、操作体の表面からの操作部の径方向の最大突出長さが、操作体の表面と操作体の裏面との径方向の最大長さより大きく形成される請求項４記載の多芯筆記具。 The operation body connected to the rear end of the writing body made of the mechanical pencil has a maximum protrusion length in the radial direction of the operation portion from the surface of the operation body in the radial direction between the surface of the operation body and the back surface of the operation body. The multi-core writing instrument according to claim 4, wherein the multi-core writing instrument is formed larger than the maximum length. 前記シャープペンシルからなる筆記体の後端に連結された操作体の操作部に、シャープペンシルからなる筆記体の内部に収容される鉛芯の、硬さ、太さ、または色を表示する識別表示部を設けた請求項１乃至５記載の何れか一つに記載の多芯筆記具。 An identification display that displays the hardness, thickness, or color of the lead core accommodated in the cursive body made of mechanical pencil on the operation part of the operating body connected to the rear end of the cursive body made of mechanical pencil. The multi-core writing instrument according to any one of claims 1 to 5, further comprising a portion.
JP2008165318A 2008-06-25 2008-06-25 Multi-refill writing utensil Pending JP2010005830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008165318A JP2010005830A (en) 2008-06-25 2008-06-25 Multi-refill writing utensil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008165318A JP2010005830A (en) 2008-06-25 2008-06-25 Multi-refill writing utensil

Publications (1)

Publication Number Publication Date
JP2010005830A true JP2010005830A (en) 2010-01-14

Family

ID=41586872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008165318A Pending JP2010005830A (en) 2008-06-25 2008-06-25 Multi-refill writing utensil

Country Status (1)

Country Link
JP (1) JP2010005830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279452B1 (en) * 2011-09-05 2013-07-02 장진우 Multipen and operation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04319499A (en) * 1991-04-18 1992-11-10 Iwase Mikio Writing utensil having mechanical pencil and multi-lead ball-point pen
JPH072234Y2 (en) * 1990-09-28 1995-01-25 株式会社パイロット Multi-core writing instrument including a mechanical pencil
JPH0727891U (en) * 1993-10-26 1995-05-23 株式会社パイロット Lead lead-out mechanism for sharp pencils in multi-core writing instruments
JP2007015275A (en) * 2005-07-08 2007-01-25 Pilot Ink Co Ltd Multiple lead writing utensil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH072234Y2 (en) * 1990-09-28 1995-01-25 株式会社パイロット Multi-core writing instrument including a mechanical pencil
JPH04319499A (en) * 1991-04-18 1992-11-10 Iwase Mikio Writing utensil having mechanical pencil and multi-lead ball-point pen
JPH0727891U (en) * 1993-10-26 1995-05-23 株式会社パイロット Lead lead-out mechanism for sharp pencils in multi-core writing instruments
JP2007015275A (en) * 2005-07-08 2007-01-25 Pilot Ink Co Ltd Multiple lead writing utensil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101279452B1 (en) * 2011-09-05 2013-07-02 장진우 Multipen and operation method thereof

Similar Documents

Publication Publication Date Title
JP2007038635A (en) Multi-core writing instrument
JP4689378B2 (en) Multi-core writing instrument
JP5221283B2 (en) Multi-core writing instrument
JP4754285B2 (en) Multi-core writing instrument
JP2007050610A (en) Writing utensil
JP2010036535A (en) Multi-refill writing utensil
JP2010005830A (en) Multi-refill writing utensil
JP2011084007A (en) Multi-lead writing implement
TW201930100A (en) Retractable writing instrument and multi-core writing instrument
JP2011093210A (en) Multi-refill writing utensil and refill for multi-refill writing utensil
JP5286031B2 (en) Multi-core writing instrument
JP5323523B2 (en) A swing-out mechanical pencil for composite writing instruments
JP5323619B2 (en) Intrusive writing instrument
JP5431052B2 (en) Multi-core writing instrument
JP4674131B2 (en) Multi-core writing instrument
JP4562187B2 (en) Swing-out mechanical pencil
JP4754295B2 (en) Multi-core writing instrument
JP2011011338A (en) Multi-lead writing utensil
JP2007069392A (en) Mechanical pencil
JP4906657B2 (en) Composite writing instrument
JP6954829B2 (en) Multi-core writing tool
JP4754290B2 (en) Multi-core writing instrument
JP2011084006A (en) Multi lead writing utensil
JP2010094876A (en) Multi-core writing instrument
JP2010052392A (en) Retractable writing utensil

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110620

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120921

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20121002

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20121123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130226

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20130827