JPS5837674Y2 - Shape pencil - Google Patents
Shape pencilInfo
- Publication number
- JPS5837674Y2 JPS5837674Y2 JP7107780U JP7107780U JPS5837674Y2 JP S5837674 Y2 JPS5837674 Y2 JP S5837674Y2 JP 7107780 U JP7107780 U JP 7107780U JP 7107780 U JP7107780 U JP 7107780U JP S5837674 Y2 JPS5837674 Y2 JP S5837674Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- sleeve
- chuck
- lead
- spring
- 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】
本考案はノック式シャープペンシル特に単一スプリング
を外筒内部に装着されノック操作により芯を操出すこと
のできる構造簡単なノック式シープペンシルの改良に関
する。[Detailed Description of the Invention] The present invention relates to an improved knock-type mechanical pencil, particularly a knock-type mechanical pencil with a simple structure in which a single spring is mounted inside the outer cylinder and the lead can be drawn out by a knock operation.
以下本考案の実施例を図面に基づき説明する。Embodiments of the present invention will be described below based on the drawings.
第１図は改良された外筒と、その外筒内に外嵌するスリ
ーブとを装着したシャープペンシルの要部を示すもので
合成樹脂材から戊る外筒１は、第２図に示すようにその
内周軸方向に多数条の凸部１ａが成形されている。Figure 1 shows the main parts of a mechanical pencil equipped with an improved outer cylinder and a sleeve that fits into the outer cylinder.The outer cylinder 1, which is made of synthetic resin, is as shown in Figure 2. A large number of convex portions 1a are formed in the direction of the inner circumferential axis.
この外筒１の内端にはスリーブ２が、一端につば部２ａ
を内油し、他端に開口端外側に切起した引掛部２ｂを突
出して後記先金８方向より圧入して外嵌されている。A sleeve 2 is provided at the inner end of this outer cylinder 1, and a collar portion 2a is provided at one end.
A hook portion 2b cut and raised outward from the open end is projected from the other end and is press-fitted from the direction of the tip metal 8 described later to be externally fitted.
しかも前記外筒１に凸部１ａが形成してあするため嵌着
が極めて容易に行われ喰込むように強固に位置決め固定
されるようになっている。In addition, since the outer cylinder 1 has a convex portion 1a, it can be fitted very easily and firmly positioned and fixed by biting.
又前記スリーブ２の内部にはスプリング６が内設され、
チャックリング３がつば部２ａに軸方向の移動を規制さ
れて掛止部３ａを外嵌するリードチャック４が芯ケース
５を連結されて内挿してあり単一スプリング６で前記外
筒１の後方に引込める如く弾発されるものである。Further, a spring 6 is installed inside the sleeve 2,
The chuck ring 3 is restricted from moving in the axial direction by the collar 2a, and the reed chuck 4, which externally fits the hook 3a, is connected to the core case 5 and is inserted therein, and is attached to the rear of the outer cylinder 1 by a single spring 6. It is something that is fired as if it can be drawn in.
尚口金７の先端には先金８が固着され、この先金８の内
端近傍には芯の戻りを止める軟質ゴム９が位置されてい
る。A tip 8 is fixed to the tip of the cap 7, and a soft rubber 9 is placed near the inner end of the tip 8 to prevent the lead from returning.
従って芯ケース５をスプリング６に抗して押圧されると
、リードチャック４が前進し、芯を口金７の先端から操
り出し、押圧を解除すると、前記スプリング６の反発力
でリードチャック４が後方に戻ると共に芯は軟質ゴム９
で芯の戻りを阻止されチャックリング３がリードチャッ
ク４先端４ａを嵌着し、芯をその状態で保持するもので
ある。Therefore, when the lead case 5 is pressed against the spring 6, the lead chuck 4 moves forward and the lead is pulled out from the tip of the mouthpiece 7. When the pressure is released, the repulsive force of the spring 6 causes the lead chuck 4 to move backward. As the core returns to soft rubber 9
This prevents the lead from returning, and the chuck ring 3 fits the tip 4a of the lead chuck 4 to hold the lead in that state.
本実施例では、外筒１を合成樹脂材から戒る円形の筒と
したが楕円形としてもよい。In this embodiment, the outer cylinder 1 is made of synthetic resin and has a circular shape, but it may also be oval.
以上の如く本考案は合成樹脂の外筒内周に多条の凸部を
軸方向に成形しであるため、金属材で開口端に引掛部が
あるスリーブが喰込むように嵌着し、位置決め、固定力
が強固となり、且つ安価に製作することが出来る。As described above, the present invention involves molding multi-striped convex parts in the axial direction on the inner periphery of a synthetic resin outer cylinder, so that a metal sleeve with a hook at the open end is fitted into the sleeve and positioned. , the fixing force is strong, and it can be manufactured at low cost.
更に芯押出しのスプリングのための係止部材も外筒内に
固定する必要がないため構成部品も少くてよい等、多大
な効果を奏する。Furthermore, since there is no need to fix the locking member for the core extrusion spring inside the outer cylinder, the number of components can be reduced, resulting in great effects.
第１図は本考案の実施例を示すシャープペンシルの要部
拡大断面図、第２図は第１図の外筒とスリーブを示すＡ
−Ａ断面図である。
１・・・・・・外筒、２・・・・・・スリーブ、２ａ・
・・・・・つば部、２ｂ・・・・・・引掛部、３・・・
・・・チャックリング、３ａ・・・・・・掛止部、４・
・・・・・リードチャック、４ａ・・・・・・先端部、
５・・・・・・芯ケース。Fig. 1 is an enlarged sectional view of the main parts of a mechanical pencil showing an embodiment of the present invention, and Fig. 2 is an A showing the outer cylinder and sleeve of Fig. 1.
-A sectional view. 1... Outer cylinder, 2... Sleeve, 2a.
...Brim part, 2b...Hook part, 3...
...Chuck ring, 3a...Latching part, 4.
...Lead chuck, 4a...Tip,
5... Core case.
Claims (1)
形した外筒と、この外筒の内周に外嵌するように開口端
の外側に突出した引掛部他端に内油したつば部をそれぞ
れ設けたスリーブとを含み、前記スリーブ内に、チャッ
クリングを外嵌したノードチャックが連結される芯ケー
スを引込める方向に弾発する単一スプリングを装着した
シャープペンシル。The outer cylinder is made of synthetic resin and has a large number of protrusions molded in the axial direction on the inner circumference, and the hook protrudes outward from the open end so as to fit onto the inner circumference of the outer cylinder.The other end has an inner oil tube. A mechanical pencil comprising a sleeve each having a flange portion, and a single spring is installed in the sleeve to spring in a direction to retract a lead case to which a node chuck having a chuck ring fitted thereon is connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7107780U JPS5837674Y2 (en) | 1980-05-23 | 1980-05-23 | Shape pencil |
| US06/215,311 US4386865A (en) | 1979-12-28 | 1980-12-11 | Automatic sharp pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7107780U JPS5837674Y2 (en) | 1980-05-23 | 1980-05-23 | Shape pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56171275U JPS56171275U (en) | 1981-12-17 |
| JPS5837674Y2 true JPS5837674Y2 (en) | 1983-08-25 |
Family
ID=29664899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7107780U Expired JPS5837674Y2 (en) | 1979-12-28 | 1980-05-23 | Shape pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837674Y2 (en) |
-
1980
- 1980-05-23 JP JP7107780U patent/JPS5837674Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56171275U (en) | 1981-12-17 |
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