JPS63132779U - - Google Patents
Info
- Publication number
- JPS63132779U JPS63132779U JP2519687U JP2519687U JPS63132779U JP S63132779 U JPS63132779 U JP S63132779U JP 2519687 U JP2519687 U JP 2519687U JP 2519687 U JP2519687 U JP 2519687U JP S63132779 U JPS63132779 U JP S63132779U
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- guide pipe
- core
- axial direction
- core guide
- 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.)
- Granted
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
第１図はこの考案の実施例におけるチヤツクが
拡開した状態を示す主要部縦断面図、第２図は第
１図の実施例における筆記状態を示す主要部縦断
面図、第３図はこの考案の他の実施例におけるチ
ヤツクが拡開した状態を示す主要部縦断面図、第
４図は第３図の実施例における筆記状態を示す主
要部縦断面図である。
１……芯、５……芯ガイドパイプ、７……チヤ
ツク、７Ｃ……チヤツク７の内段、７Ｄ……チヤ
ツク７の芯保持部、８……チヤツクスプリング、
１１……パイプ。
Fig. 1 is a longitudinal sectional view of the main part of the embodiment of this invention showing the chuck in an expanded state, Fig. 2 is a longitudinal sectional view of the main part showing the writing state of the embodiment of Fig. 1, and Fig. 3 is a longitudinal sectional view of the main part of the embodiment of this invention. FIG. 4 is a longitudinal cross-sectional view of the main part showing the chuck in an expanded state in another embodiment of the invention, and FIG. 4 is a longitudinal cross-sectional view of the main part showing the writing state of the embodiment of FIG. 1... core, 5... core guide pipe, 7... chuck, 7C... inner stage of chuck 7, 7D... core holding part of chuck 7, 8... chuck spring,
11...Pipe.
Claims (1)
ガイドパイプを前方に移動することにより芯を繰
り出し、かつ芯ガイドパイプが軸方向の最前方に
位置した時チヤツクが拡開し、チヤツク内に順次
芯が自動追従する自動繰出式シヤープペンシルに
おいて、芯ガイドパイプと連動するパイプと、少
なくとも芯保持部を含む前部が２つ以上の各片に
分割されたチヤツクと、該チヤツクを軸方向の後
方に付勢するチヤツクスプリングからなり、芯ガ
イドパイプが軸方向の最前方に位置した時、チヤ
ツクの後筒部に挿入されたパイプの前部がチヤツ
クの内段に当接し、チヤツクが適宜拡開されて構
成した自動繰出式シヤープペンシルのチヤツク拡
開装置。 As the core wears, the core guide pipe retreats, and by moving the core guide pipe forward, the core is fed out. When the core guide pipe is positioned at the most forward position in the axial direction, the chuck expands, and the cores are gradually inserted into the chuck. A self-feeding sharp pencil that automatically follows a lead guide pipe, a chuck whose front part including at least a lead holding part is divided into two or more pieces, and a chuck that is moved rearward in the axial direction. Consisting of a chuck spring that biases, when the core guide pipe is positioned at the frontmost position in the axial direction, the front part of the pipe inserted into the rear cylinder of the chuck comes into contact with the inner stage of the chuck, causing the chuck to expand appropriately. A chuck expanding device for an automatic mechanical pencil.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2519687U JPH0440952Y2 (en) | 1987-02-23 | 1987-02-23 | |
| US07/087,863 US4840508A (en) | 1987-01-29 | 1987-08-21 | Mechanical pencil capable of automatically propelling successive lengths of lead |
| CA000545398A CA1282371C (en) | 1987-01-29 | 1987-08-26 | Mechanical pencil capable of automatically propelling successive lengths of lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2519687U JPH0440952Y2 (en) | 1987-02-23 | 1987-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63132779U true JPS63132779U (en) | 1988-08-30 |
| JPH0440952Y2 JPH0440952Y2 (en) | 1992-09-25 |
Family
ID=30825120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2519687U Expired JPH0440952Y2 (en) | 1987-01-29 | 1987-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440952Y2 (en) |
-
1987
- 1987-02-23 JP JP2519687U patent/JPH0440952Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0440952Y2 (en) | 1992-09-25 |
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