JPH0280484U - - Google Patents
Info
- Publication number
- JPH0280484U JPH0280484U JP16158288U JP16158288U JPH0280484U JP H0280484 U JPH0280484 U JP H0280484U JP 16158288 U JP16158288 U JP 16158288U JP 16158288 U JP16158288 U JP 16158288U JP H0280484 U JPH0280484 U JP H0280484U
- Authority
- JP
- Japan
- Prior art keywords
- ball
- chuck
- case
- protrusion
- base piece
- 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
- 239000000470 constituent Substances 0.000 claims 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
第１図は第１実施例のチヤツクセツトを用いた
シヤープペンシルの要部縦断面図、第２図は第１
図Ａ―Ａ線の横断面図、第３図は第２実施例のチ
ヤツクセツトを用いたシヤープペンシルの要部断
面図、第４図は従来例のチヤツクセツトの縦断面
図である。
１…チヤツク本体、２…芯把持部、３…ボール
受座、４…ボール、７…チヤツクケース、１０…
前端開口部、１１…テーパ状内面部、１３…係止
部、１４…基片、１５…突起、１８…凹部、１９
…芯、２０…軸筒、２４…スライダー、２５…保
持チヤツク、２６…スプリング。
Fig. 1 is a longitudinal cross-sectional view of the main parts of a mechanical pencil using the chuck set of the first embodiment, and Fig.
FIG. 3 is a sectional view of a main part of a mechanical pencil using the chuck set of the second embodiment, and FIG. 4 is a longitudinal cross-sectional view of a conventional chuck set. DESCRIPTION OF SYMBOLS 1...chuck body, 2...lead grip part, 3...ball catch, 4...ball, 7...chuck case, 10...
Front end opening, 11... Tapered inner surface, 13... Locking part, 14... Base piece, 15... Protrusion, 18... Recess, 19
...Core, 20...Axis tube, 24...Slider, 25...Holding chuck, 26...Spring.
Claims (1)
ーパ状内面部１１を設けると共にその後方に係止
部１３を設けたチヤツクケース７と、前端内面部
に芯把持部２を設けると共に前端外面部にボール
受座３を設け更に後方へ延設した半径方向に弾性
変形変形可能な基片１４の後端外面部に自然状態
におけるその外接円の直径が上記チヤツクケース
７における係止部１３の内接円の内径よりも大き
い突起１５を設けて軸線方向の切断面によつて複
数に分割されたチヤツク本体１と、ボール４とを
構成要素とし、チヤツク本体１をそのボール受座
３にボール４を嵌入した状態でチヤツクケース７
の内部にその前端開口部１０から挿入してボール
４をテーパ状内面部１１に接触させると共に基片
１４を半径方向に圧縮させて突起１５を係止部１
３より後方へ通過させた状態に組み付けてなるシ
ヤープペンシル用チヤツクセツト。 A chuck case 7 is provided with a tapered inner surface 11 whose inner diameter is gradually reduced toward the rear at the front end, and a locking portion 13 is provided behind the chuck case 7, a lead gripping portion 2 is provided on the inner surface of the front end, and a ball is provided on the outer surface of the front end. A catch seat 3 is provided on the outer surface of the rear end of a radially elastically deformable base piece 14 extending rearward, and the diameter of its circumscribed circle in a natural state is equal to that of the inscribed circle of the locking part 13 in the chuck case 7. The chuck body 1 has a protrusion 15 larger than the inner diameter and is divided into a plurality of parts by a cut surface in the axial direction, and a ball 4 are the constituent elements, and the ball 4 is fitted into the ball seat 3 of the chuck body 1. Check case 7 in condition
The ball 4 is brought into contact with the tapered inner surface 11 and the base piece 14 is compressed in the radial direction, so that the protrusion 15 is inserted into the locking part 1.
A chuck set for a sharp pencil that is assembled so that it passes backwards from 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988161582U JPH0621755Y2 (en) | 1988-12-12 | 1988-12-12 | Check Set for Sharp Pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988161582U JPH0621755Y2 (en) | 1988-12-12 | 1988-12-12 | Check Set for Sharp Pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0280484U true JPH0280484U (en) | 1990-06-21 |
| JPH0621755Y2 JPH0621755Y2 (en) | 1994-06-08 |
Family
ID=31444650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988161582U Expired - Lifetime JPH0621755Y2 (en) | 1988-12-12 | 1988-12-12 | Check Set for Sharp Pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621755Y2 (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
- 1988-12-12 JP JP1988161582U patent/JPH0621755Y2/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 |
|---|---|
| JPH0621755Y2 (en) | 1994-06-08 |
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