JP3005892B2 - Double writing instrument - Google Patents
Double writing instrumentInfo
- Publication number
- JP3005892B2 JP3005892B2 JP8315681A JP31568196A JP3005892B2 JP 3005892 B2 JP3005892 B2 JP 3005892B2 JP 8315681 A JP8315681 A JP 8315681A JP 31568196 A JP31568196 A JP 31568196A JP 3005892 B2 JP3005892 B2 JP 3005892B2
- Authority
- JP
- Japan
- Prior art keywords
- cam
- slide piece
- operation cam
- writing
- slide
- 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.)
- Expired - Lifetime
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ボ−ルペンとシャ
−プペンシル等のように複数の筆記体を選択的に使用で
きるようにした複式筆記具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiple writing instrument such as a ball-point pen and a sharp pencil, which can selectively use a plurality of writing objects.
【０００２】[0002]
【従来の技術】複式筆記具として種々の構成が提案され
ているが、一般に、２本の筆記体をガイド筒の案内溝に
嵌着し、各筆記体をそれぞればねで後方に付勢し、該筆
記体の後部に連結したスライダを軸筒の後部に設けた作
動カムの山形状のカム面に当接し、該作動カムに連結し
た軸筒の後軸やキャップ等を右回転若しくは左回転させ
て各筆記体を軸筒の先端から突出するように構成されて
いる。上記のように、従来のものは、各筆記体をそれぞ
れ付勢するばねを設けて作動カムのカム面に常にスライ
ダを当接するようにしてあるので、構成が複雑で組み立
てが面倒であり、その上後軸等を介して作動カムを操作
するときに、２本のばねの押圧力が抵抗となって軽快な
操作を妨げる原因となっていた。2. Description of the Related Art Various types of writing instruments have been proposed. In general, two writing instruments are fitted into guide grooves of a guide cylinder, and each writing instrument is urged rearward by a spring. The slider connected to the rear of the writing body is brought into contact with the mountain-shaped cam surface of the operating cam provided at the rear of the barrel, and the rear shaft, cap, etc. of the barrel connected to the operating cam are rotated clockwise or counterclockwise. Each writing body is configured to protrude from the tip of the barrel. As described above, the conventional one is provided with a spring for urging each writing body, and the slider is always brought into contact with the cam surface of the operation cam. When the operation cam is operated via the upper rear shaft or the like, the pressing force of the two springs becomes a resistance, which hinders light operation.
【０００３】また、軸筒を前軸と後軸に分離したり、軸
筒の後部にキャップを設けて回転操作を行う構成である
ため、複雑な構造となり、軸筒のデザインも制約され、
その上筆記体をガイドするためのガイド筒を必要とした
り、作動カムの回動を制限するための特別の構成を設け
たりしなければならないので、全体として経済的に得に
くいものであった。In addition, since the shaft cylinder is separated into a front shaft and a rear shaft, or a cap is provided at a rear portion of the shaft cylinder to perform a rotating operation, the structure becomes complicated, and the design of the shaft cylinder is restricted.
In addition, since a guide cylinder for guiding the cursive writing is required and a special configuration for restricting the rotation of the operation cam must be provided, it is difficult to obtain the whole economically.
【０００４】[0004]
【発明の解決課題】本発明はそのような実情に鑑み、複
数の筆記体を付勢するばねを１本で済ませることができ
るようにし、軸筒も一体で形成でき構成が簡単で経済的
に得られる複式筆記具を提供することを目的とする。SUMMARY OF THE INVENTION In view of such circumstances, the present invention makes it possible to use only one spring for urging a plurality of cursive objects, and to form the shaft cylinder integrally, so that the structure is simple and economical. It is an object of the present invention to provide a double writing implement that can be obtained.
【０００５】[0005]
【課題解決の手段】本発明によれば、軸筒内に軸方向に
移動可能に設けた２本の筆記体を１本のばねで後方に付
勢し、作動カムを回動していずれか一方の筆記体を軸筒
の先端から突出させるよう移動させるとき、他方の筆記
体の移動を拘束するよう係止部を設けたことを特徴とす
る複式筆記具が提案され、上記の目的が達成される。According to the present invention, two writing bodies provided movably in the axial direction in a shaft cylinder are urged rearward by a single spring, and the operating cam is rotated by rotating one of the two writing bodies. When one writing body is moved so as to protrude from the tip of the barrel, a double writing implement characterized by providing a locking portion to restrain the movement of the other writing body has been proposed, and the above object has been achieved. You.
【０００６】[0006]
【発明の実施の形態】図１等に示す図において、軸筒
（１）は、先端に口金（２）を有し、後部に回動可能に
かつ軸方向に移動可能に作動カム（３）が設けられてい
る。該作動カム（３）は、図２に示すように、先端に掛
止部（４）を有し、山形状に延出する略半筒状のカム面
（５），（５）を具備し、軸筒の後端に嵌着した尾栓
（６）に当接する肩部（７）を中間に形成し、その後方
には消ゴム（８）を嵌着する筒状部（９）を形成すると
共に該筒状部（９）の外周に回転防止用のリブ(10)・・
・を突設し、該リブ(10)に係合させることによりカバ−
(11)を回転不能に嵌着してある。また、上記作動カム
（３）の軸心に対し、上記掛止部（４）と１８０°対向
する位置には、後記するスライドコマ(12a),(12b) の移
動を選択的に阻止するための係止部を構成する係止突起
(13)が突設されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings shown in FIG. 1 and the like, a shaft cylinder (1) has a base (2) at the tip and an operating cam (3) rotatably and axially movable at a rear portion. Is provided. As shown in FIG. 2, the operation cam (3) has a hook portion (4) at its tip and has substantially semi-cylindrical cam surfaces (5) and (5) extending in a mountain shape. A shoulder (7) for contacting a tail plug (6) fitted to the rear end of the barrel is formed in the middle, and a tubular part (9) for fitting an eraser (8) is formed behind the shoulder. At the same time, ribs (10) for preventing rotation are provided on the outer periphery of the cylindrical portion (9).
・ The cover is provided by projecting and engaging the rib (10).
(11) is fitted non-rotatably. Further, at a position which is 180 ° opposite to the engaging portion (4) with respect to the axis of the operation cam (3), the movement of the slide pieces (12a) and (12b) described later is selectively prevented. Locking projection that constitutes the locking part of
(13) is protruding.
【０００７】上記作動カム（３）の前方には、軸筒内で
軸方向に移動可能に形成した一対の略半円柱状のスライ
ドコマ(12a),(12b) が対向状態に設けられている。該ス
ライドコマ(12a),(12b) は、それぞれボ−ルペン，ノッ
ク式シャ−プペンシルその他の筆記体(14a),(14b) の後
部を保持するよう保持孔(15)を有し、該保持孔(15)内に
は該筆記体(14a),(14b) を把持する小突起(16)が形成さ
れている。In front of the operating cam (3), a pair of substantially semi-cylindrical slide pieces (12a) and (12b) formed so as to be movable in the axial direction in the shaft cylinder are provided to face each other. . Each of the slide pieces (12a) and (12b) has a holding hole (15) for holding a rear portion of a ball pen, a knock type sharp pencil and other writing bodies (14a) and (14b). In the hole (15), a small projection (16) for holding the writing bodies (14a) and (14b) is formed.
【０００８】上記スライドコマ(12a),(12b) の外面に
は、上記作動カム（３）のカム面（５）に係合するよう
従動突起(17)が形成されている。該従動突起(17)は、図
３〜図５に示すように、上記カム面に係合してスライド
コマ(12a),(12b) を軸方向へ前方へ移動する案内面(18)
と、カム面に係合して該作動カム（３）の回動を規制す
る当接面(19)を有している。A driven projection (17) is formed on the outer surface of each of the slide pieces (12a) and (12b) so as to engage with the cam surface (5) of the operation cam (3). As shown in FIGS. 3 to 5, the driven protrusion (17) engages with the cam surface to guide the slide pieces (12a) and (12b) forward in the axial direction.
And a contact surface (19) which engages with the cam surface to regulate the rotation of the operation cam (3).
【０００９】また、上記スライドコマ(12a),(12b) は、
軸筒（１）内で回動しないように拘束されているが、図
においては、スライドコマに軸方向に延びる溝(20)を形
成し、該溝(20)を軸筒内に軸方向に形成したリブ(21)
（図１ 点線、図６）に係合させてある。なお、該溝(2
0)等はスライドコマの外周の適宜位置に設けてもよい
が、図においては各スライドコマ(12a),(12b) の端縁に
略Ｌ字状にそれぞれ形成し、これを組み合わせた状態で
上記リブ(21)に係合させるようにしてある。このように
構成すると、スライドコマ(12a),(12b) を該リブ(21)に
より確実に分離でき、後述するスライドコマの作動を一
層確実にすることができる。The slide frames (12a) and (12b) are
Although it is restrained so as not to rotate in the barrel (1), in the figure, a groove (20) extending in the axial direction is formed in the slide piece, and the groove (20) is formed in the barrel in the axial direction. Formed ribs (21)
(Dotted line in FIG. 1, FIG. 6). The groove (2
0) and the like may be provided at appropriate positions on the outer periphery of the slide pieces, but in the figure, they are formed in substantially L-shapes at the edges of each of the slide pieces (12a) and (12b), and in a state where they are combined. The rib (21) is engaged. With this configuration, the slide pieces (12a) and (12b) can be reliably separated by the ribs (21), and the operation of the slide piece described later can be further ensured.
【００１０】上記スライドコマ(12a),(12b) の後部の外
周には、上記作動カム（３）の係止突起(13)と協働して
係止部を構成するための環状の係合溝(22)が形成されて
いる。該係止突起(13)と係合溝(22)は、スライドコマ側
に係止突起(13)を設け、作動カム側に係合溝(22)を形成
するようにしてもよいし、その他の適宜の構成により選
択的に一方のスライドコマに係合する係止部を設けても
よい。On the outer periphery of the rear portions of the slide pieces (12a) and (12b), an annular engagement for forming a locking portion in cooperation with the locking projection (13) of the operating cam (3). A groove (22) is formed. The locking protrusion (13) and the engaging groove (22) may be provided with a locking protrusion (13) on the slide piece side and an engaging groove (22) on the operation cam side, or other A locking portion that selectively engages with one of the slide pieces may be provided by an appropriate configuration of (1).
【００１１】上記軸筒（１）内に形成した段部(23)（図
１、図７）と上記スライドコマ(12a),(12b) の間には、
該スライドコマ(12a),(12b) を作動カム（３）方向へ付
勢するようばね(24)を設けてある。[0011] Between the step (23) (FIGS. 1 and 7) formed in the shaft cylinder (1) and the slide pieces (12a) and (12b),
A spring (24) is provided to bias the slide pieces (12a) and (12b) toward the operation cam (3).
【００１２】なお、図５に示すように、上記スライドコ
マ(12a),(12b) の従動突起(17)の案内面(18)と作動カム
（３）のカム面（５）は、非作動時において隙間(25)が
設けられている。この隙間(25)は、上記係止部により一
方のスライドコマの移動を阻止した後に、他方のスライ
ドコマの従動突起と作動カムのカム面が係合するようタ
イムラグを形成するための適宜の幅とすればよい。As shown in FIG. 5, the guide surface (18) of the driven projection (17) of the slide pieces (12a) and (12b) and the cam surface (5) of the operation cam (3) are not operated. Sometimes a gap (25) is provided. This gap (25) has an appropriate width for forming a time lag such that the movement of one slide piece is prevented by the locking portion and the driven projection of the other slide piece is engaged with the cam surface of the operation cam. And it is sufficient.
【００１３】図５，図８を参照し、非作動時において、
上記係止部の係止突起(13)は、上記スライドコマ(12a),
(12b) の係合溝(22)，(22)にまたがった状態に位置して
いる（図８（Ａ））。そして、軸筒の後端から突出する
上記カバ−(11)を操作して作動カム（３）を回動する
と、上記係止突起(13)は、一方のスライドコマ(12a）の
係合溝(22)にのみ係合し（図８（Ｂ））他方のスライド
コマ(12b) の係合溝(22)から外れ、該スライドコマ(12
a）の移動（前進動）を阻止する。さらに、作動カム
（３）の回動を続けると、図５鎖線に示すように、他方
のスライドコマ(12b)の従動突起(17)の案内面(18)がカ
ム面（５）に係合して、該スライドコマ(12b)を前進さ
せ、該従動突起(17)がカム面（５）の先端の掛止部
（４）に係合して、筆記体(14b) の先端を軸筒（１）の
口金（２）から突出した状態に保持して筆記可能とする
（図８（Ｃ））。この状態から該筆記体を没入させるに
は、上記作動カムを逆方向へ回動させればよい。Referring to FIGS. 5 and 8, when not in operation,
The locking projection (13) of the locking part is the slide piece (12a),
It is located in a state of straddling the engagement grooves (22) and (22) of (12b) (FIG. 8A). When the cover (11) projecting from the rear end of the barrel is operated to rotate the operation cam (3), the locking projection (13) is engaged with the engagement groove of one of the slide pieces (12a). (22) only (FIG. 8 (B)), disengage from the engaging groove (22) of the other slide piece (12b), and
a) The movement (forward movement) is prevented. When the rotation of the operation cam (3) is further continued, the guide surface (18) of the driven protrusion (17) of the other slide piece (12b) engages with the cam surface (5) as shown by the chain line in FIG. Then, the slide piece (12b) is advanced, and the driven projection (17) is engaged with the hook (4) at the tip of the cam surface (5), and the tip of the writing body (14b) is attached to the barrel. It is possible to write while holding it in a state protruding from the base (2) of (1) (FIG. 8C). In order to make the writing body immersed in this state, the operating cam may be rotated in the opposite direction.
【００１４】なお、筆記状態から上記作動カム（３）を
さらに同方向へ回動させようとすると、移動を阻止され
ていたスライドコマ(12a）の従動突起(17)の当接面(19)
に作動カム（３）の他面側のカム面（５）が当って、回
動は規制される。If the operation cam (3) is further rotated in the same direction from the writing state, the contact surface (19) of the driven projection (17) of the slide piece (12a) which has been prevented from moving.
The cam surface (5) on the other surface side of the operating cam (3) comes into contact with the cam cam (3), and the rotation is restricted.
【００１５】上記筆記体(14b) がノック式シャ−プペン
シルの場合は、上記カバ−(11)をノックして作動カム
（３）を軸方向へ移動させれば、公知のように鉛芯を繰
り出すことができるが、いずれの筆記体もノック形式で
はないときは、上記作動カム（３）は軸方向に移動しな
いように構成してもよい。When the writing body (14b) is a knock-type sharp pencil, the cover (11) is knocked and the operating cam (3) is moved in the axial direction, so that the lead core is made known in the art. The operating cam (3) may be configured so as not to move in the axial direction when any of the cursive objects is not of the knocking type.
【００１６】[0016]
【発明の効果】本発明は上記のように構成され、それぞ
れ筆記体を保持し対向状態に組み合わせた一対のスライ
ドコマを１つのばねで作動カム方向へ付勢し、該作動カ
ムを回動していずれか一方のスライドコマを軸方向へ移
動させるとき他方のスライドコマに係止部を係合させて
該スライドコマの移動を阻止するようにしたので、スラ
イドコマの移動時に１本のばねに抗して作動カムを回動
させればよく、操作が軽快にでき、軸筒も一体に形成で
き、従来のような筆記体のガイド筒も不要であり、カバ
−を操作して作動させることができるので使い易く、構
成が簡単で経済的に得られるものである。The present invention is constructed as described above, and a pair of slide pieces, each holding a writing body and combined in an opposed state, are urged by one spring in the direction of the operation cam, and the operation cam is rotated. When one of the slide pieces is moved in the axial direction, the locking portion is engaged with the other slide piece to prevent the slide piece from moving. The operation cam can be rotated in opposition, the operation can be performed lightly, the shaft cylinder can be formed integrally, and the conventional writing cylinder guide cylinder is not required, and the cover is operated and operated. Therefore, it is easy to use, has a simple structure, and can be obtained economically.
【図１】本発明の一実施例を示す断面図。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】作動カムを示し、（Ａ）は正面図、（Ｂ）は一
部切欠平面図、（Ｃ）は一部の底面図、（Ｄ）は左側面
図、（Ｅ）は右側面図。2 (A) is a front view, (B) is a partially cutaway plan view, (C) is a partial bottom view, (D) is a left side view, and (E) is a right side view. FIG.
【図３】一方のスライドコマを示し、（Ａ）は正面図、
（Ｂ）は断面図、（Ｃ）は左側面図、（Ｄ）は斜視図。FIG. 3 shows one slide piece, (A) is a front view,
(B) is a sectional view, (C) is a left side view, and (D) is a perspective view.
【図４】他方のスライドコマを示し、（Ａ）は正面図、
（Ｂ）は断面図、（Ｃ）は左側面図。FIG. 4 shows the other slide frame, (A) is a front view,
(B) is a sectional view, and (C) is a left side view.
【図５】作動カムのカム面とスライドコマの関係を示す
説明図。FIG. 5 is an explanatory diagram showing a relationship between a cam surface of an operation cam and a slide piece.
【図６】図１のＡ−Ａ線断面図。FIG. 6 is a sectional view taken along line AA of FIG. 1;
【図７】図１の軸筒のＢ−Ｂ線断面図。FIG. 7 is a sectional view taken along line BB of the shaft cylinder of FIG. 1;
【図８】それぞれ使用状態を示し、（Ａ）は非作動時、
（Ｂ）は作動カムを少し回動させた状態、（Ｃ）は筆記
体を突出させた状態の断面図。FIGS. 8A and 8B each show a use state, and FIG.
(B) is a state in which the operating cam is slightly rotated, and (C) is a cross-sectional view in a state in which the writing body is projected.
１ 軸筒 ３ 作動カム ４ 掛止部 ５ カム
面 11 カバ− 12a,12b スライドコマ 13 係止突起 14a,14b 筆
記体 17 従動突起 18 案内面 19 当接面 20 溝 21 リブ
22 係合溝 24 ばねDESCRIPTION OF SYMBOLS 1 Shaft cylinder 3 Operating cam 4 Locking part 5 Cam surface 11 Cover 12a, 12b Slide piece 13 Locking projection 14a, 14b Writing body 17 Follower projection 18 Guide surface 19 Contact surface 20 Groove 21 Rib
22 Engagement groove 24 Spring
Claims (7)
掛止部を有し山形状のカム面を形成した作動カムと、筆
記体の後部を保持し軸方向に移動可能に対向状態に組み
合わせられた一対のスライドコマと、上記作動カムのカ
ム面に係合するよう上記スライドコマの外面に形成した
従動突起と、上記スライドコマを作動カムへ付勢するば
ねを具備し、上記スライドコマと作動カムの間には、上
記作動カムを回転して一方のスライドコマの従動突起と
作動カムのカム面が係合するとき他方のスライドコマに
係合してその移動を阻止するよう係止部が設けられてい
ることを特徴とする複式筆記具。1. An operating cam rotatably provided at a rear portion of a shaft cylinder and having a hook portion at a tip to form a mountain-shaped cam surface, and opposing an axially movably holding a writing material rear portion. A pair of slide pieces combined in a state, a driven projection formed on an outer surface of the slide piece to be engaged with a cam surface of the operation cam, and a spring for urging the slide piece to the operation cam, Between the slide piece and the operation cam, the operation cam is rotated so that when the driven projection of one slide piece and the cam surface of the operation cam engage, the other slide piece is engaged to prevent the movement. A dual-purpose writing instrument, wherein a locking portion is provided.
けた環状の係合溝といずれかの係合溝に係合するよう作
動カムに突設した係止突起である請求項１に記載の複式
筆記具。2. The locking member according to claim 1, wherein the locking portion is an annular engaging groove provided on an outer periphery of the slide piece and a locking protrusion protruding from an operation cam so as to engage with any one of the engaging grooves. Double writing implement as described.
のカム面は、上記係止部で一方のスライドコマの移動を
阻止した後他方のスライドコマの従動突起と作動カムの
カム面が係合するよう非作動時において隙間が設けられ
ている請求項１に記載の複式筆記具。3. The driven projection of the slide piece and the cam surface of the operation cam are engaged with each other, and after the movement of one slide piece is prevented by the locking portion, the driven projection of the other slide piece is engaged with the cam surface of the operation cam. The double writing implement according to claim 1, wherein a gap is provided when not in operation.
動カムのカム面と係合して該スライドコマを軸方向へ移
動する案内面と、作動カムの回動を規制する当接面を具
備する請求項１に記載の複式筆記具。4. The driven protrusion of the slide piece has a guide surface which engages with a cam surface of the operation cam to move the slide piece in the axial direction, and a contact surface which restricts rotation of the operation cam. The double-type writing instrument according to claim 1.
るカバ−により操作される請求項１に記載の複式筆記
具。5. The dual writing implement according to claim 1, wherein the operation cam is operated by a cover projecting from a rear end of the barrel.
びる溝が形成され、該溝が軸筒内に形成したリブに係合
している請求項１に記載の複式筆記具。6. The dual writing implement according to claim 1, wherein a groove extending in an axial direction is formed on an outer periphery of the slide piece, and the groove engages with a rib formed in the shaft cylinder.
ャ−プペンシルであり、上記作動カムは軸方向に移動可
能に設けられている請求項１に記載の複式筆記具。7. The dual writing implement according to claim 1, wherein at least one of said writing bodies is a knock-type sharp pencil, and said operating cam is provided so as to be movable in an axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8315681A JP3005892B2 (en) | 1996-11-13 | 1996-11-13 | Double writing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8315681A JP3005892B2 (en) | 1996-11-13 | 1996-11-13 | Double writing instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10138688A JPH10138688A (en) | 1998-05-26 |
| JP3005892B2 true JP3005892B2 (en) | 2000-02-07 |
Family
ID=18068287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8315681A Expired - Lifetime JP3005892B2 (en) | 1996-11-13 | 1996-11-13 | Double writing instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3005892B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8156781B2 (en) | 2005-10-12 | 2012-04-17 | Nsk Ltd. | Steering rack and method of manufacturing the same |
-
1996
- 1996-11-13 JP JP8315681A patent/JP3005892B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8156781B2 (en) | 2005-10-12 | 2012-04-17 | Nsk Ltd. | Steering rack and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10138688A (en) | 1998-05-26 |
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