JP2000247092A - Side knock type mechanical pencil - Google Patents
Side knock type mechanical pencilInfo
- Publication number
- JP2000247092A JP2000247092A JP11049686A JP4968699A JP2000247092A JP 2000247092 A JP2000247092 A JP 2000247092A JP 11049686 A JP11049686 A JP 11049686A JP 4968699 A JP4968699 A JP 4968699A JP 2000247092 A JP2000247092 A JP 2000247092A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- barrel
- knock
- engagement receiving
- knock piece
- 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
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、軸筒の側壁にノッ
ク駒を有し、そのノック駒を押圧することによってスラ
イダーを前進せしめ、芯の繰り出しを行うサイドノック
式シャープペンシルに関するものであり、特に、軸筒へ
の前記スライダーの組み付け作業の改善に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side-knock mechanical pencil that has a knock piece on a side wall of a barrel, and pushes the knock piece to advance a slider and extend a lead. In particular, the present invention relates to an improvement in an operation of assembling the slider to the barrel.
【０００２】[0002]
【従来の技術】本願出願人は、以前にサイドノック式シ
ャープペンシルの改良に関する発明をなし、特開平９−
３１５０８６号公報として出願公開された。軸筒内の断
面形状を異形形状となすと共に、芯繰り出し機構の少な
くとも１つの部材を前記異形形状と同形状にすることに
よって、スライダーの軸筒への組み付け性を容易なもの
としている。2. Description of the Related Art The applicant of the present invention has previously made an invention relating to an improvement of a side-knock mechanical pencil.
The application was published as No. 315086. By making the cross-sectional shape inside the shaft cylinder an irregular shape and making at least one member of the core feeding mechanism the same shape as the irregular shape, the assemblability of the slider to the shaft cylinder is facilitated.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上述した従来
の技術にあっては、以前のものと比し、組立性は向上し
たものの、さらなる組立性の改良による生産性の向上が
望まれるようになってきた。つまり、上述した発明であ
っては、スライダーを軸筒に組み付ける過程において
は、スライダーが回転することなく組み立てることがで
きるが、軸筒に組み付ける間際に、スライダーを１８０
度回転させてしまった場合においても組み立てることが
できるため、そのような状態であると、芯の繰り出し操
作に支障が出てきてしまう。However, in the above-mentioned prior art, although the assemblability is improved as compared with the prior art, it is desired to further improve the productivity by further improving the assemblability. It has become. In other words, in the above-described invention, in the process of assembling the slider to the barrel, the slider can be assembled without rotating.
Since it can be assembled even if it has been rotated by degrees, in such a state, the operation of feeding out the core will be hindered.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記問題点に
鑑みてなされたものであり、軸筒の側壁にノック駒を有
するサイドノック式シャープペンシルであって、前記ノ
ック駒が当接し前進せしめられるスライダーの前記ノッ
ク駒との当接部を線対称な位置に形成すると共に、前記
軸筒とスライダーとを回転不能ではあるが、摺動可能に
配置したことを要旨とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and is a side-knock mechanical pencil having a knock piece on a side wall of a shaft cylinder, wherein the knock piece abuts and advances. The gist of the present invention is that the abutting portion of the slider to be contacted with the knock piece is formed at a position symmetrical with respect to the line, and the shaft cylinder and the slider are slidably arranged although they cannot rotate.
【０００５】[0005]
【作用】軸筒に対してスライダーを１８０度回転させて
組み付けてしまっても、スライダーの反対側の当接部が
ノック駒に当接することになり、支障なく芯の繰り出し
操作が行える。When the slider is rotated by 180 degrees with respect to the shaft cylinder and assembled, the contact portion on the opposite side of the slider comes into contact with the knock piece, and the lead-out operation can be performed without any trouble.
【０００６】[0006]
【実施例】図１〜図５に第１例を示し説明する。軸筒１
の側壁の中間部には、後方（以下、図中上方を後方とい
う）が楕円形状に形成された透孔２が形成されており、
その透孔２には、断面形状がコ字型で、後方が楕円形状
に形成されたノック駒３が、前記軸筒１に対して垂直方
向の径方向に移動可能に取り付けられている。そのノッ
ク駒３の側壁４の中間部には、切欠き部５が形成されて
おり、また、ノック駒３の側壁４の前端部には、前部傾
斜面６が形成されている。そして、これら、切欠き部５
と前部傾斜面６とによって形成されるノック駒３の側壁
が第１の係合部７となっている。また、前記切欠き部５
の後方面にも後部傾斜面８が形成されており、この後部
傾斜面８とノック駒３の後端部９によって形成されるノ
ック駒３の側壁が第２の係合部１０となっている。尚、
ノック駒３の底面部の側面には、係合爪が形成されてお
り、軸筒１からの脱落が防止されている。FIG. 1 to FIG. 5 show a first example. Shaft barrel 1
In the middle part of the side wall, there is formed a through hole 2 in which the rear (hereinafter, the upper side in the figure is referred to as the rear) is formed in an elliptical shape,
A knock piece 3 having a U-shaped cross section and an elliptical rear section is attached to the through hole 2 so as to be movable in a radial direction perpendicular to the barrel 1. A notch 5 is formed in the middle of the side wall 4 of the knock piece 3, and a front inclined surface 6 is formed at the front end of the side wall 4 of the knock piece 3. And these notches 5
The side wall of the knock piece 3 formed by the front part 6 and the front inclined surface 6 serves as a first engagement part 7. The notch 5
A rear inclined surface 8 is also formed on the rear surface of the knock piece 3, and a side wall of the knock piece 3 formed by the rear inclined face 8 and the rear end 9 of the knock piece 3 serves as a second engaging portion 10. . still,
An engagement claw is formed on the side surface of the bottom portion of the knock piece 3 to prevent the knock piece 3 from dropping off the barrel 1.
【０００７】前記軸筒１の前方には、コイルスプリング
などの弾撥部材１１によって後方に付勢されたスライダ
ー１２が摺動自在に配置されており、そのスライダー１
２の中間部には、中心に向かって上方に傾斜する第１の
係合受部（第１の当接部）１３と第２の係合受部（第２
の当接部）１４とが上下に、かつ、スライダー１２の長
手方向の中心に対して線対称な位置に形成されている。
つまり、これら第１の係合受部１３と第２の係合受部１
４は、スライダー１２の長手方向の中心線を中心とし
「く」型状をなしている。また、第１の係合受部１３と
第２の係合受部１４は、前記ノック駒３の第１の係合部
７と第２の係合部１０に各々が当接し得るようになって
いる。更に、前記第１の係合受部１３や第２の係合受部
１４の正面外形形状は、軸筒１の内形とほぼ同形となっ
ており、組み付ける際に軸筒１に対する回転が防止され
るようになっている。また、前記第１の係合受部１３並
びに、第２の係合受部１４の端部には、各々突部１３
ａ、１４ａが形成されており、この突部１３ａと１４ａ
が前記軸筒１の内面に対する摺動部位となっている（図
５参照）。ここで、本例の第２の係合受部１４の端部近
傍の幅が狭くなっているが（幅狭部１４ｂ）、成形によ
る「ひけ」を考慮してのことであり、必ずしも必要では
なく、第１の係合受部１３の形状と同様な形状としても
良い（図６参照）。A slider 12 urged rearward by a repelling member 11 such as a coil spring is slidably disposed in front of the barrel 1.
The first and second engagement receiving portions (first contact portions) 13 and the second engagement receiving portions (second
) Are formed vertically and at positions symmetrical with respect to the center of the slider 12 in the longitudinal direction.
That is, the first engagement receiving portion 13 and the second engagement receiving portion 1
Numeral 4 is in the shape of a circle with the center line in the longitudinal direction of the slider 12 as the center. Further, the first engagement receiving portion 13 and the second engagement receiving portion 14 can come into contact with the first engagement portion 7 and the second engagement portion 10 of the knock piece 3 respectively. ing. Furthermore, the front outer shape of the first engagement receiving portion 13 and the second engagement receiving portion 14 is substantially the same as the inner shape of the barrel 1, so that rotation with respect to the barrel 1 during assembly is prevented. It is supposed to be. The first engagement receiving portion 13 and the end of the second engagement receiving portion 14 have protrusions 13 respectively.
a, 14a are formed, and the projections 13a and 14a
Are sliding portions on the inner surface of the barrel 1 (see FIG. 5). Here, the width near the end of the second engagement receiving portion 14 of the present example is narrow (narrow portion 14b), but this is due to the "sink" caused by molding, and is not always necessary. Instead, a shape similar to the shape of the first engagement receiving portion 13 may be used (see FIG. 6).
【０００８】前記スライダー１２の後方には、軸筒１の
内形と略同形の外形を有する芯受け部１５が一体に形成
されているが、別部材で構成し、圧入などの手段によっ
てスライダー１２に固定しても良い。この芯受け部１５
の形状によっても軸筒１に対する回転が防止されてい
る。その芯受け部１５の内側は、芯が落下しやすいよう
にロ−ト状に形成されており、そのロ−ト状部１６の下
端には芯挿通孔１７が形成されている。この芯挿通孔１
７の内径は、芯の外径と略同径である。つまり、芯受け
部１５を境に軸筒１の後方内側は、芯タンク部１８とな
っている。一方、前記スライダー１２の前端には、チャ
ックリング１９を被嵌したチャック体２０が固定されて
いる。云うまでもなく、前記チャック体２０は、芯の解
放、把持を行なうものであり、チャックリング１９はチ
ャック体２０の開閉を行なうものである。また、前記軸
筒１の前端には、内部に芯戻り止め部２１が一体形成さ
れた先部材２２が着脱自在に固定されている。At the rear of the slider 12, a core receiving portion 15 having an outer shape substantially the same as the inner shape of the shaft cylinder 1 is integrally formed. May be fixed. This core receiving part 15
The rotation with respect to the barrel 1 is also prevented by the shape of. The inside of the core receiving portion 15 is formed in a rotor shape so that the core can be easily dropped, and a core insertion hole 17 is formed at the lower end of the rotor portion 16. This core insertion hole 1
The inner diameter of 7 is substantially the same as the outer diameter of the core. That is, the core tank portion 18 is formed on the inner side of the rear side of the shaft cylinder 1 with respect to the core receiving portion 15. On the other hand, a chuck body 20 fitted with a chuck ring 19 is fixed to the front end of the slider 12. Needless to say, the chuck body 20 releases and holds the core, and the chuck ring 19 opens and closes the chuck body 20. At the front end of the barrel 1, a tip member 22 integrally formed with a center detent portion 21 is detachably fixed.
【０００９】次ぎに、動作について簡単に説明する。図
１の状態よりノック駒３を径方向に押圧すると、スライ
ダー１２が弾撥部材１１の弾撥力に抗して前進すると共
に、チャック体２０が前進・拡開し、芯が繰り出され
る。Next, the operation will be briefly described. When the knock piece 3 is pressed in the radial direction from the state shown in FIG. 1, the slider 12 moves forward against the elastic force of the elastic member 11, the chuck body 20 advances and expands, and the core is extended.
【００１０】第２例を図７、図８に示し説明する。スラ
イダー１２の側壁に延出部２３を形成した例である。そ
の延出部２３は、前記第１の係合受部１３の突起１３ａ
と、第２の係合受部１４の突起１４ａとを結ぶ線上の高
さを有している。つまり、前記第１例では、軸筒１の内
面との摺動部位を突起１３ａと突起１４ａとの２点によ
ってなしているが、本例においては、延出部２３の端面
全体が軸筒１の内面との摺動部となっている。線上で当
接しているのである。そして、線上で当接、摺動させる
ことによって、ノック駒の操作によるスライダー１２の
たわみを防止しているのである。A second example will be described with reference to FIGS. This is an example in which an extension 23 is formed on the side wall of the slider 12. The extending portion 23 is provided with a projection 13a of the first engagement receiving portion 13.
, And a height on a line connecting the projection 14 a of the second engagement receiving portion 14. In other words, in the first example, the sliding portion with the inner surface of the barrel 1 is formed by the two points of the projection 13a and the projection 14a. Sliding part with the inner surface of the They abut on the line. Then, by abutting and sliding on the line, the bending of the slider 12 due to the operation of the knock piece is prevented.
【００１１】第３例を図９に示し説明する。前記第１例
や、第２例に於ける第１の係合受部や第２の係合受部
は、平板状の傾斜面としているが、この第３例に於ける
スライダー１２の係合受部は球状の突部２４となってい
る。また、その球状の突部２４は、軸筒１の内面との摺
動部位ともなっている。摺動部位を球状にすることによ
って、円滑に摺動できるいった利点がある。尚、本例に
おいては、球状の突部２４を線対称な位置に形成した
が、図１０に示すように、半円弧状の係合受部を線対称
な位置に形成し、それら半円弧状の係合受部を連結する
ことによって、リング状の係合受部２４ａとしても良い
（第４例）。A third example will be described with reference to FIG. The first engagement receiving portion and the second engagement receiving portion in the first example and the second example are flat inclined surfaces, but the engagement of the slider 12 in the third example is The receiving part is a spherical projection 24. Further, the spherical projection 24 also serves as a sliding portion with the inner surface of the barrel 1. By making the sliding portion spherical, there is an advantage that the sliding can be performed smoothly. In the present embodiment, the spherical projections 24 are formed at symmetrical positions. However, as shown in FIG. 10, semi-circular engagement receiving portions are formed at symmetrical positions. The ring-shaped engagement receiving portions 24a may be formed by connecting the engagement receiving portions 24a and 24b (fourth example).
【００１２】第５例を図１１に示し説明する。前記各例
には、ノック駒を軸筒に対して垂直方向に押圧する例で
あるが、この第４例は、ノック駒２５の後端を支点とし
て、該ノック駒２５を円弧状に押圧操作する例である。
ここで、本例に於けるスライダー２６について詳述する
と、スライダー２６の前方部分には、前記ノック駒２５
と当接する係合受部２７が線対称な位置に形成されてい
る。この係合受部２７も前記第１例と同様に中心方向に
向かって上方に傾斜している。A fifth example will be described with reference to FIG. In each of the above examples, the knock piece is pressed in a direction perpendicular to the shaft cylinder. In the fourth example, the rear end of the knock piece 25 is used as a fulcrum to press the knock piece 25 in an arc shape. Here is an example.
Here, the slider 26 in this example will be described in detail.
Is formed at a position symmetrical with the line. The engagement receiving portion 27 is also inclined upward toward the center similarly to the first example.
【００１３】[0013]
【発明の効果】本発明は、軸筒の側壁にノック駒を有す
るサイドノック式シャープペンシルであって、前記ノッ
ク駒が当接し前進せしめられるスライダーの前記ノック
駒との当接部を線対称な位置に形成すると共に、前記軸
筒とスライダーとを回転不能ではあるが、摺動可能に配
置したので、スライダーを軸筒に対して、容易に、しか
も確実に組み付けることができる。According to the present invention, there is provided a side-knock type mechanical pencil having a knock piece on a side wall of a barrel, wherein a contact portion of the slider with which the knock piece abuts and is advanced is axisymmetric. In addition, the shaft cylinder and the slider are not rotatable but are slidably arranged, so that the slider can be easily and securely assembled to the shaft cylinder.
【図１】本発明の第１例を示す縦断面図。FIG. 1 is a longitudinal sectional view showing a first example of the present invention.
【図２】図１の要部拡大図。FIG. 2 is an enlarged view of a main part of FIG.
【図３】図１のＡーＡ線断面図。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図４】図１のスライダーの拡大縦半断面図。FIG. 4 is an enlarged vertical half sectional view of the slider of FIG. 1;
【図５】図１のスライダーを示す斜視図。FIG. 5 is a perspective view showing the slider of FIG. 1;
【図６】図１のスライダーの変形例を示す斜視図。FIG. 6 is a perspective view showing a modification of the slider of FIG. 1;
【図７】第２例を示すスライダーの外観図。FIG. 7 is an external view of a slider showing a second example.
【図８】図７のＢーＢ線断面図。FIG. 8 is a sectional view taken along line BB of FIG. 7;
【図９】第３例を示すスライダーの縦半断面図。FIG. 9 is a longitudinal half sectional view of a slider showing a third example.
【図１０】第４例を示す縦断面図。FIG. 10 is a longitudinal sectional view showing a fourth example.
【図１１】第５例を示す縦断面図。FIG. 11 is a longitudinal sectional view showing a fifth example.
１ 軸筒 ２ 透孔 ３ ノック駒 ４ 側壁 ５ 切り欠部 ６ 前部傾斜面 ７ 第１の係合部 ８ 後部傾斜面 ９ 後端部 １０ 第２の係合部 １１ 弾撥部材 １２ スライダー １３ 第１の係合受部 １３ａ 突部 １４ 第２の係合受部 １４ａ 突部 １４ｂ 幅狭部 １５ 芯受け部 １６ ロート状部 １７ 芯挿通孔 １８ 芯タンク １９ チャックリング ２０ チャック体 ２１ 芯戻り止め部 ２２ 先部材 ２３ 延出部 ２４ 係合受部 ２４ａ 係合受部 ２５ ノック駒 ２６ スライダー ２７ 係合受部 REFERENCE SIGNS LIST 1 shaft cylinder 2 through hole 3 knock piece 4 side wall 5 cutout portion 6 front inclined surface 7 first engaging portion 8 rear inclined surface 9 rear end portion 10 second engaging portion 11 resilient member 12 slider 13 th 1 engagement receiving portion 13a projection 14 second engagement receiving portion 14a projection 14b narrow portion 15 core receiving portion 16 funnel-shaped portion 17 core insertion hole 18 core tank 19 chuck ring 20 chuck body 21 core detent portion 22 tip member 23 extension part 24 engagement receiving part 24a engagement receiving part 25 knock piece 26 slider 27 engagement receiving part
Claims (1)
ック式シャープペンシルであって、前記ノック駒が当接
し前進せしめられるスライダーの前記ノック駒との当接
部を線対称な位置に形成すると共に、前記軸筒とスライ
ダーとを回転不能ではあるが、摺動可能に配置したこと
を特徴とするサイドノック式シャープペンシル。1. A side-knock mechanical pencil having a knock piece on a side wall of a barrel, wherein a contact portion of the slider with which the knock piece abuts and is advanced is formed at a line-symmetric position with the knock piece. A side-knock mechanical pencil, wherein the shaft cylinder and the slider are slidably arranged although they cannot rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11049686A JP2000247092A (en) | 1999-02-26 | 1999-02-26 | Side knock type mechanical pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11049686A JP2000247092A (en) | 1999-02-26 | 1999-02-26 | Side knock type mechanical pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000247092A true JP2000247092A (en) | 2000-09-12 |
Family
ID=12838078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11049686A Pending JP2000247092A (en) | 1999-02-26 | 1999-02-26 | Side knock type mechanical pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000247092A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269211A (en) * | 2008-04-30 | 2009-11-19 | Pentel Corp | Side knock type writing utensil |
| KR102295321B1 (en) * | 2021-02-25 | 2021-08-30 | 이종훈 | White hair cutter |
| CN115230370A (en) * | 2022-08-04 | 2022-10-25 | 湖南创智慧教育有限公司 | Writing brush writing device capable of storing ink and self-adaptive and automatically discharging ink |
-
1999
- 1999-02-26 JP JP11049686A patent/JP2000247092A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269211A (en) * | 2008-04-30 | 2009-11-19 | Pentel Corp | Side knock type writing utensil |
| KR102295321B1 (en) * | 2021-02-25 | 2021-08-30 | 이종훈 | White hair cutter |
| CN115230370A (en) * | 2022-08-04 | 2022-10-25 | 湖南创智慧教育有限公司 | Writing brush writing device capable of storing ink and self-adaptive and automatically discharging ink |
| CN115230370B (en) * | 2022-08-04 | 2024-01-30 | 湖南创智慧教育有限公司 | Writing brush writing device capable of storing ink and self-adapting automatic ink outlet |
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