JPS6021280Y2 - Knot cap for extrusion type sharp pencil - Google Patents
Knot cap for extrusion type sharp pencilInfo
- Publication number
- JPS6021280Y2 JPS6021280Y2 JP19582781U JP19582781U JPS6021280Y2 JP S6021280 Y2 JPS6021280 Y2 JP S6021280Y2 JP 19582781 U JP19582781 U JP 19582781U JP 19582781 U JP19582781 U JP 19582781U JP S6021280 Y2 JPS6021280 Y2 JP S6021280Y2
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- pipe body
- length
- writing lead
- writing
- 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
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【考案の詳細な説明】
本考案は押出式筆記具に具備するノックキャップの改良
に関するが、とくに、筆記芯押出用の標識をもったノッ
クキャップの改良に関する。[Detailed Description of the Invention] The present invention relates to an improvement of a knock cap included in an extrusion type writing instrument, and particularly relates to an improvement of a knock cap having a mark for extruding a writing lead.
筆記芯押出用の標識をもったノックキャップは周知であ
るが、該標識には、ノックキャップの外周面に着色を施
こして構成したもの、及びノックキャップの外周を操作
端部に向って2段、3段と小径に絞って異径に構成した
ものなどがある。Knock caps with markings for extruding writing leads are well-known, but the markings include one in which the outer periphery of the knock cap is colored, and one in which the outer periphery of the knock cap is marked 2 times toward the operation end. There are also those that are configured with different diameters, narrowing down to small diameters such as stages and three stages.
前者の着色構成は、使用によって剥離或いは褪色してし
まい、筆記芯押出用として機能しなくなる不利があり、
後者の異径構成は、それなりの利点をもつものの、ノッ
クキャップと芯ケース基端部との連結にはなんらの工夫
もしていないため、該連結部にゆるみによるガタが発生
し、ノックキャップが往々にして脱落する不利がある。The former colored structure has the disadvantage that it peels off or fades with use and does not function as a writing lead extruder.
Although the latter configuration with different diameters has certain advantages, since no effort has been made to connect the knock cap to the base end of the core case, looseness occurs in the connection, and the knock cap often becomes loose. It has the disadvantage of falling off.
本考案は、かかる周知のノックキャップに着目してなし
たもので、パイプ体の周壁に構成した軸方向に長い内向
突条を筆記芯押出用の標識として利用可能ならしめ、も
って周知の前者にみられる前記不利を解消せしめ、かつ
該内向突条でノックキャップと芯ケース基端部との連結
をしつかりしたものならしめ、もってノックキャップが
容易に脱落する惧れを解消せしめたことを特徴とする。The present invention was developed by focusing on such a well-known knock cap, and makes it possible to use an axially long inward protrusion formed on the peripheral wall of the pipe body as a marker for extruding a writing lead, thereby improving the former well-known knock cap. The invention is characterized by eliminating the above-mentioned disadvantages, and by making the connection between the knock cap and the proximal end of the core case firm with the inward protrusion, thereby eliminating the fear that the knock cap will easily fall off. shall be.
本考案の実施例を説明すれば、パイプ体1の周壁には3
本以上の軸方向に長い内向突条2を構成するが、該突条
は芯ケース3の外径に適合する内径が形成されるように
求心方向へ絞り出し、内向突条2を結ぶ仮想円を芯ケー
ス3の外径に適合せしめ、該ケースの基端部に被せたと
き、内向突条2を芯ケース3に圧接せしめて容易に脱落
することを防止せしめる。To explain the embodiment of the present invention, the peripheral wall of the pipe body 1 has three
The inward protrusions 2 are longer in the axial direction and are squeezed out in the centripetal direction so that an inner diameter that matches the outer diameter of the core case 3 is formed, and an imaginary circle connecting the inward protrusions 2 is formed. It is adapted to the outer diameter of the core case 3, and when placed over the base end of the case, the inward protrusion 2 is brought into pressure contact with the core case 3 to prevent it from easily falling off.
内向突条2の長さは筆記不可能にチャック4に掴持され
ている筆記芯が解放されて筆記可能になるまでの押し出
しのためのストローク1とほぼ同じ長さか或いは若干長
めに構成し、パイプ体1の操作端に装着した天板101
を押して、パイプ体1の操作端側に配された内向突条2
の始端部201を軸管5の基端に到達せしめると、チャ
ック4が開いて筆記芯が解放され、しかして、内向突条
2の上端部から天板101の頂部までの長さは、チャッ
ク4から解放されて筆記可能になっている筆記芯が、再
びチャック4に掴持されるまでの引込みのためのストロ
ーク(b図に実線で示したチャックの目端から0図に示
したチャックの目端までのストローク)とほぼ同じ長さ
か或いは若干長め(0図において軸方向の基端から突出
せるパイプ体の突出長と同寸)に構成する。The length of the inward protrusion 2 is configured to be approximately the same length as the stroke 1 for pushing out the writing lead held by the chuck 4 so that it cannot be written on until it is released and becomes available for writing, or slightly longer. Top plate 101 attached to the operating end of the pipe body 1
Press the inward protrusion 2 arranged on the operation end side of the pipe body 1.
When the starting end 201 of the shaft tube 5 reaches the base end of the shaft tube 5, the chuck 4 opens and the writing lead is released. The drawing stroke for the writing lead, which has been released from the chuck 4 and is now ready for writing, to be gripped by the chuck 4 again (from the edge of the chuck indicated by the solid line in figure b to the edge of the chuck shown in figure 0) The length is approximately the same as the length (stroke to the end of the eye) or is slightly longer (same length as the protrusion length of the pipe body that can protrude from the base end in the axial direction in Figure 0).
従って、叙上のように構成されたノックキャップの内向
突条2を筆記芯押出用の標識として利用することができ
る。Therefore, the inward protrusion 2 of the knock cap configured as described above can be used as a marker for extruding a writing lead.
次に本考案のノックキャップを利用したシャープペンシ
ルの作用を第1図で説明すると、a図の筆記芯引込み状
態において、天板101を押し、内向突条2の始端部2
01を軸筒5の基端に到達せしめると、引込みばね9が
圧縮され、同時にチャック4及びこのチャックに被さっ
ている締リング6が一緒に前進し、締リング6は軸筒5
の段部501に係合して停止するも、チャック4は前進
を続けて停止した締リング6から脱出し、開いて筆記芯
を解放し、軸筒5の先端から突出せしめる。Next, the action of the mechanical pencil using the knock cap of the present invention will be explained with reference to FIG. 1. In the writing lead retracted state shown in FIG.
01 reaches the base end of the barrel 5, the retraction spring 9 is compressed, and at the same time, the chuck 4 and the tightening ring 6 covering the chuck move forward together, and the tightening ring 6 pushes against the barrel 5.
Although the chuck 4 engages with the stepped portion 501 and stops, the chuck 4 continues to move forward and escapes from the stopped tightening ring 6, opens, releases the writing lead, and causes it to protrude from the tip of the barrel 5.
チャック4は、筆記芯解放時にクッションばね7上に配
された移動リング8に浅く嵌まってb図の如くなる。When the writing lead is released, the chuck 4 is shallowly fitted into the moving ring 8 disposed on the cushion spring 7, as shown in Figure b.
内向突条2の始端部201が、軸筒5の基端に達したと
ころで押操作をやめると、芯ケース3と軸筒5内に固定
せる中具10との間に介在せしめた引込みばね9の弾発
力でチャック4が引かれ、停止していた締リング6に嵌
まり、両者が一緒に原位置まで戻って、チャック4が筆
記芯を掴持し、筆記可能になる。When the starting end 201 of the inward protrusion 2 reaches the base end of the shaft tube 5 and the pushing operation is stopped, the retraction spring 9 interposed between the core case 3 and the inner fitting 10 fixed in the shaft tube 5 is released. The chuck 4 is pulled by the elastic force of , fits into the stopped tightening ring 6, and both return together to the original position, where the chuck 4 grips the writing lead and becomes ready for writing.
筆記可能な筆記芯を引込む時は、0図のように天板10
1が軸筒5の基端に達するまで押込む。When pulling in a writable writing lead, use the top plate 10 as shown in figure 0.
1 until it reaches the base end of the barrel 5.
天板101が軸筒5の基端に達すると、芯ケース3に突
設せるストッパー用突管301が、中具10に突設せる
ストッパー用突管1001に当接してチャック4の前進
を停止せしめる。When the top plate 101 reaches the base end of the shaft cylinder 5, the stopper tube 301 protruding from the core case 3 comes into contact with the stopper tube 1001 protruding from the inner tool 10, stopping the chuck 4 from moving forward. urge
両突管301,1001が当接したときのチャック4は
、移動リング8にやや深く嵌まり、クッションばね7を
圧縮して移動リング8を前進位置で停止せしめる。When the double projecting pipes 301 and 1001 come into contact, the chuck 4 fits into the movable ring 8 somewhat deeply, compressing the cushion spring 7 and stopping the movable ring 8 at the forward position.
チャック4の停止と同時にクッションばね7が反発し、
移動リング8を徐々に押戻し、チャック4を次第に深く
嵌合せしめて筆記芯を掴持せしめる。At the same time as the chuck 4 stops, the cushion spring 7 rebounds.
The moving ring 8 is gradually pushed back, and the chuck 4 is gradually fitted deeper to grip and hold the writing lead.
天板101が、軸筒5の基端に達したところで押操作を
やめると、引込みばね9が弾発し、b図の如く芯ケース
3を押戻すと同時に筆記芯を掴んだチャック4の引込み
を開始し、軸筒5の段部501に係合している締リング
6にチャック4を嵌合せしめ、両者をa図の原位置まで
引込んで、筆記芯を軸筒5内に引込む。When the top plate 101 stops pushing when it reaches the base end of the barrel 5, the retraction spring 9 springs, pushing back the lead case 3 as shown in Figure b, and at the same time retracting the chuck 4 that grips the writing lead. At the start, the chuck 4 is fitted onto the tightening ring 6 that is engaged with the stepped portion 501 of the barrel 5, and both are pulled to the original position shown in Fig. a, and the writing lead is pulled into the barrel 5.
チャック4の引込み開始時に移動リング8も同時に移動
するが、このリングは原位置に復帰した締リング6に当
接するとチャック4から離れ、自重でクッションばね7
上に戻り、原位置に復帰する。When the chuck 4 starts retracting, the movable ring 8 also moves at the same time, but when this ring comes into contact with the tightening ring 6 that has returned to its original position, it separates from the chuck 4 and releases the cushion spring 7 due to its own weight.
Return to the top and return to the original position.
従って、作用の順序は、第1図でa→l) + C→b
−4−aの順になる。Therefore, the order of action is a→l) + C→b in Figure 1.
-4-a.
本考案は叙上のようにパイプ体の周壁に3本以上の軸方
向に長い内向突条を構成し、該突条を結ぶ仮想円で構成
される内径を芯ケースの外径に適合する径ならしめたの
で、パイプ体を芯ケースの基端に被せれば、内向突条が
芯ケースの外周面に圧接する。As described above, the present invention comprises three or more axially long inward protrusions on the peripheral wall of the pipe body, and the inner diameter formed by the virtual circle connecting the protrusions is set to a diameter that matches the outer diameter of the core case. Since it has been smoothed out, when the pipe body is placed over the base end of the core case, the inwardly directed protrusions come into pressure contact with the outer peripheral surface of the core case.
従って、パイプ体を芯ケースにしつかり連結することが
可能になり、パイプ体の容易な脱落及びガタつきを防止
できる効果がある。Therefore, it becomes possible to securely connect the pipe body to the core case, which has the effect of preventing the pipe body from easily falling off and rattling.
そして、内向突条の長さは、チャックが筆記芯を掴持及
び解放するためのストロークとほぼ同じ長さに構成した
から、芯ケースの基端に被せたパイプ体を押し、そのパ
イプ体の操作端側に配された内向突条の始端部を軸筒の
基端に到達せしめると、チャックは前進し、締リングか
ら脱出して開らき、掴持していた筆記芯を解放せしめて
軸筒の先端から突出せしめることになり、該始端部が軸
筒の基端に達したところで押操作をやめれば、パイプ体
及び内向突条は原位置に戻り、チャックは締リングに再
嵌合して一緒に原位置に戻り、筆記芯を筆記可能な状態
に掴持する。Since the length of the inward protrusion is approximately the same as the stroke for the chuck to grip and release the writing lead, the pipe body placed over the base end of the lead case is pushed and the pipe body When the starting end of the inward protrusion arranged on the operation end side reaches the base end of the shaft barrel, the chuck moves forward, escapes from the tightening ring and opens, releases the writing lead it was gripping, and releases the writing lead from the shaft. When the starting end reaches the base end of the barrel and the pushing operation is stopped, the pipe body and the inward protrusion return to their original positions, and the chuck refits into the tightening ring. Then return to the original position together and grab the writing lead in a state where you can write.
従って、パイプ体の内向突条を筆記芯押出用の標識とし
て利用することができる効果があると共に、該突条は標
識として利用しても、剥離や褪色などの不都合を生じな
い効果がある。Therefore, there is an effect that the inward protrusion of the pipe body can be used as a marker for extruding a writing core, and even when the protrusion is used as a marker, there is an effect that problems such as peeling and fading do not occur.
また、パイプ体の内向突条は、パイプ体ごとに絞り深さ
を変えれば、内向突条を結ぶ仮想円で構成される内径を
パイプ体ごとに変えることが可能になり、たとえば、内
向突条以外の部分の径(内径及び外径の両方)が大径で
あっても、細い芯ケースに取付は使用することができ、
利用範囲がひろくなる効果がある。In addition, if the drawing depth of the inward ridges of the pipe body is changed for each pipe body, the inner diameter formed by the virtual circle connecting the inward ridges can be changed for each pipe body. Even if the diameter of the other parts (both inner and outer diameters) is large, it can be installed on a thin core case.
This has the effect of widening the scope of use.
ゆえに、周知のノックキャップを著しく改良できて、所
期の目的を遠戚できる。Therefore, the known knock caps can be significantly improved and the intended purpose can be distantly related.
図面は本考案ノックキャップを用いたシャープペンシル
を示すもので、第1図はシャープペンシルの作用を表わ
した一部縦断正面図、第2図は要部の拡大縦断正面図、
第3図は第2図の■−■線による横断面図である。
図中、1はパイプ体、2は内向突条、3は芯ケース、4
はチャック、1はストロークである。The drawings show a mechanical pencil using the knock cap of the present invention; Fig. 1 is a partially longitudinal front view showing the action of the mechanical pencil, Fig. 2 is an enlarged longitudinal sectional front view of the main part,
FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 2. In the figure, 1 is a pipe body, 2 is an inward protrusion, 3 is a core case, 4
is the chuck and 1 is the stroke.
Claims (1)
軸筒の先端から出入りする押出式シャープペンシル用の
ノックキャップであって、該ノックキャップはパイプ体
の周壁に3本以上の軸方向に長い内向突条を形戒腰該突
条を結ぶ仮想円で構成される内径を芯ケースの外径に適
合する径に構成すると共に、該内向突条の長さを、筆記
不可能にチャックに掴持されている筆記芯が解放される
までの押し出しのためのストロークとほぼ同じ長さに構
成し、さらに内向突条の上端部からパイプ体頂部までの
長さを、筆記可能な筆記芯がチャックに再び掴持される
までの引込みのためのストロークとほぼ同じ長さに構成
した構造。A knock cap for a push-out mechanical pencil in which the writing lead moves in and out of the tip of the barrel simply by pushing a pusher that protrudes from the base end of the barrel, and the knock cap has three or more knock caps on the peripheral wall of the pipe body. The inner diameter of the long inward protrusion in the axial direction is configured to have an inner diameter formed by an imaginary circle connecting the protrusion to a diameter that matches the outer diameter of the core case, and the length of the inward protrusion is determined by a writing method. The length is approximately the same as the extrusion stroke until the writing lead gripped by the chuck is released, and the length from the upper end of the inward protrusion to the top of the pipe body can be written on. The length is approximately the same as the stroke for retracting the writing lead until it is gripped again by the chuck.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19582781U JPS6021280Y2 (en) | 1981-12-28 | 1981-12-28 | Knot cap for extrusion type sharp pencil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19582781U JPS6021280Y2 (en) | 1981-12-28 | 1981-12-28 | Knot cap for extrusion type sharp pencil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58101784U JPS58101784U (en) | 1983-07-11 |
JPS6021280Y2 true JPS6021280Y2 (en) | 1985-06-25 |
Family
ID=30109089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19582781U Expired JPS6021280Y2 (en) | 1981-12-28 | 1981-12-28 | Knot cap for extrusion type sharp pencil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6021280Y2 (en) |
-
1981
- 1981-12-28 JP JP19582781U patent/JPS6021280Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS58101784U (en) | 1983-07-11 |
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