JPH01131583U - - Google Patents
Info
- Publication number
- JPH01131583U JPH01131583U JP2951088U JP2951088U JPH01131583U JP H01131583 U JPH01131583 U JP H01131583U JP 2951088 U JP2951088 U JP 2951088U JP 2951088 U JP2951088 U JP 2951088U JP H01131583 U JPH01131583 U JP H01131583U
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- ball
- case
- fitted
- ball chuck
- 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
- 230000007423 decrease Effects 0.000 claims 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
第１図は本考案の一実施例を示す縦断面図、第
２図は従来例を示す縦断面図である。
１……ボールチヤツク、２……芯把持部、３…
…ボール受座、４……ボール、５……基部、６…
…チヤツクバネ、７……チヤツクケース、８……
後端開口部、９……段部、１０……前端開口部、
１１……テーパ状内面部、１２……止メリング、
１３……切断面、１４……締付部、１５……スプ
リング受座、１６……スプリング、１７……スプ
リング受座。
FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view showing a conventional example. 1...Ball chuck, 2...Lead gripping part, 3...
...Ball catch, 4...Ball, 5...Base, 6...
...Chuck spring, 7...Chick case, 8...
Rear end opening, 9... Step part, 10... Front end opening,
11... Tapered inner surface part, 12... Stop ring,
13...Cut surface, 14...Tightening portion, 15...Spring catch, 16...Spring, 17...Spring catch.
Claims (1)
その内面部を芯締付部となすと共にその外面部に
凹状のボール受座を設けたボールチヤツクがその
ボール受座にボールを嵌装した状態でチヤツクケ
ースの内部にその前端開口部から挿入され、該ボ
ールチヤツクの前方にスプリングが配されてその
後端がボールチヤツクの前端面に当接されてボー
ルチヤツクが後方へ付勢され、ボールチヤツクに
嵌装されたボールがチヤツクケースに設けられた
後方に向つて内径を次第に縮小させるテーパ状内
面部に当接され、ボールチヤツクはチヤツクケー
スの後方へ抜脱不能とされたことを特徴とするシ
ヤープペンシル用チヤツクセツト。 A state in which a ball chuck is divided into the required number of parts by a cut surface in the axial direction, the inner surface of which is used as a core tightening part, and a concave ball seat is provided on the outer surface of the chuck, and a ball is fitted into the ball seat. The ball chuck is inserted into the inside of the chuck case through its front end opening, and a spring is disposed in front of the ball chuck, and the rear end is brought into contact with the front end surface of the ball chuck to urge the ball chuck backward, and the ball fitted into the ball chuck is A chuck set for a sharp pencil, characterized in that the ball chuck is in contact with a tapered inner surface provided in the chuck case and whose inner diameter gradually decreases toward the rear, and the ball chuck cannot be removed from the chuck case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988029510U JPH0621754Y2 (en) | 1988-03-04 | 1988-03-04 | Check Set for Sharp Pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988029510U JPH0621754Y2 (en) | 1988-03-04 | 1988-03-04 | Check Set for Sharp Pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01131583U true JPH01131583U (en) | 1989-09-06 |
| JPH0621754Y2 JPH0621754Y2 (en) | 1994-06-08 |
Family
ID=31253792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988029510U Expired - Lifetime JPH0621754Y2 (en) | 1988-03-04 | 1988-03-04 | Check Set for Sharp Pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621754Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6235896A (en) * | 1985-08-10 | 1987-02-16 | ミクロ株式会社 | Automatic delivery type propelling pencil |
| JPS6313780U (en) * | 1986-07-11 | 1988-01-29 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55103243A (en) * | 1979-02-02 | 1980-08-07 | Ntn Toyo Bearing Co Ltd | Producing apparatus of turbulent flow element for heat exchanger |
-
1988
- 1988-03-04 JP JP1988029510U patent/JPH0621754Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6235896A (en) * | 1985-08-10 | 1987-02-16 | ミクロ株式会社 | Automatic delivery type propelling pencil |
| JPS6313780U (en) * | 1986-07-11 | 1988-01-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0621754Y2 (en) | 1994-06-08 |