JPH0185091U - - Google Patents
Info
- Publication number
- JPH0185091U JPH0185091U JP1987178930U JP17893087U JPH0185091U JP H0185091 U JPH0185091 U JP H0185091U JP 1987178930 U JP1987178930 U JP 1987178930U JP 17893087 U JP17893087 U JP 17893087U JP H0185091 U JPH0185091 U JP H0185091U
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- curvature
- tip
- divided pieces
- radius
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/22—Writing-cores gripping means, e.g. chucks
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
第１図はシヤープペンシルの断面図、第２図は
チヤツクの一部断面図、第３図は鉛芯咬持状態の
説明図である。 １……軸筒、２……口金、３……鉛芯ケース、
５……チヤツク、５１……咬持部、５２……分割
片、５３……突起、６……チヤツクリング、７…
…鉛芯。
チヤツクの一部断面図、第３図は鉛芯咬持状態の
説明図である。 １……軸筒、２……口金、３……鉛芯ケース、
５……チヤツク、５１……咬持部、５２……分割
片、５３……突起、６……チヤツクリング、７…
…鉛芯。
Claims (1)
- チヤツクリングが係合する先端の咬持部から後
端近傍にかけて軸線方向に分割されて３個の分割
片が形成され、この分割片は、自由状態において
先端に向かうにつれて半径方向に大きく拡がる二
次曲線状であり、かつ咬持部の外周面中央には、
その曲率半径がチヤツクリングの曲率半径に等し
い突起が形成されたことを特徴とする合成樹脂製
シヤープペンシル用チヤツク。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178930U JPH0185091U (ja) | 1987-11-26 | 1987-11-26 | |
| US07/192,129 US4976560A (en) | 1987-11-26 | 1988-05-10 | Mechanical pencil with a plastic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178930U JPH0185091U (ja) | 1987-11-26 | 1987-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0185091U true JPH0185091U (ja) | 1989-06-06 |
Family
ID=16057127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987178930U Pending JPH0185091U (ja) | 1987-11-26 | 1987-11-26 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4976560A (ja) |
| JP (1) | JPH0185091U (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2562933Y2 (ja) * | 1991-07-23 | 1998-02-16 | 株式会社壽 | 棒状物繰り出し容器 |
| TW363522U (en) * | 1997-05-13 | 1999-07-01 | Kotobuki & Co Ltd | Double chucks type mechanical pencil |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB373458A (en) * | 1931-06-24 | 1932-05-26 | Printator G M B H | Improvements in and relating to pencil cases |
| DE680248C (de) * | 1935-05-14 | 1939-08-25 | A W Faber Castell Bleistift Fa | Fuellbleistift mit fortlaufendem Minenvorschub |
| US2473149A (en) * | 1945-09-07 | 1949-06-14 | American Lead Pencil Co | Mechanical pencil with step-by-steplead feeding means |
| CH308005A (fr) * | 1953-04-21 | 1955-06-30 | Caran D Ache Crayons | Porte-mine. |
| NL75613C (ja) * | 1953-11-17 | |||
| US2845898A (en) * | 1954-07-02 | 1958-08-05 | Faber Castell A W | Writing instrument chuck |
| BE554350A (ja) * | 1957-01-08 | |||
| US3001510A (en) * | 1957-04-12 | 1961-09-26 | Chelazzi Casimiro | Improvements in lead dropping pencils |
| US3998558A (en) * | 1972-12-08 | 1976-12-21 | A. W. Faber-Castell | Mechanical pencil |
| US4140408A (en) * | 1976-08-20 | 1979-02-20 | Pentel Kabushiki Kaisha | Push type mechanical pencil |
| DE2649871C3 (de) * | 1976-10-29 | 1980-01-10 | Fa. J.S. Staedtler, 8500 Nuernberg | Druckbleistift |
| US4106874A (en) * | 1976-11-29 | 1978-08-15 | Ancos Co., Ltd. | Mechanical pencil |
| DE3125441C2 (de) * | 1981-06-27 | 1983-07-07 | Fa. A.W. Faber-Castell, 8504 Stein | Füllminenstift mit automatischem Minenvorschub und Nachschub der Folgemine |
| US4619539A (en) * | 1984-02-13 | 1986-10-28 | Kotobuki & Co, Ltd. | Mechanical pencil equipped with lead-storing cartridge |
-
1987
- 1987-11-26 JP JP1987178930U patent/JPH0185091U/ja active Pending
-
1988
- 1988-05-10 US US07/192,129 patent/US4976560A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US4976560A (en) | 1990-12-11 |