JPS62128885U - - Google Patents
Info
- Publication number
- JPS62128885U JPS62128885U JP1582686U JP1582686U JPS62128885U JP S62128885 U JPS62128885 U JP S62128885U JP 1582686 U JP1582686 U JP 1582686U JP 1582686 U JP1582686 U JP 1582686U JP S62128885 U JPS62128885 U JP S62128885U
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- rear end
- utility
- lead
- model registration
- 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
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- 230000008602 contraction Effects 0.000 claims 1
- 238000005242 forging Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
第１図はこの考案の一実施例に係るシヤープペ
ンシルの半截断面図、第２図はリードチヤツクの
拡大断面図、第３図はリードチヤツクを含む芯送
出機構の拡大断面図、第４図は一方のチヤツク部
材の内側平面図、第５図は第４図の―線に沿
う拡大断面図、第６図〜第８図はそれぞれ異なつ
たチヤツク部材連結手段を示す断面図である。
図において、１は外筒、３は芯パイプ、５はリ
ードチヤツク、５０は芯挿通孔、５１，５２はチ
ヤツク部材、５１ｃ，５１ｄおよび５２ｃ，５２
ｄならびに５３，５４は連結手段、６はチヤツク
締付リングである。
Fig. 1 is a half-cut sectional view of a sharp pencil according to an embodiment of this invention, Fig. 2 is an enlarged sectional view of the lead chuck, Fig. 3 is an enlarged sectional view of the lead delivery mechanism including the lead chuck, and Fig. 4 is one of the lead chucks. FIG. 5 is an enlarged sectional view taken along the line --- in FIG. 4, and FIGS. 6 to 8 are sectional views showing different chuck member connecting means. In the figure, 1 is an outer cylinder, 3 is a core pipe, 5 is a lead chuck, 50 is a core insertion hole, 51, 52 are chuck members, 51c, 51d and 52c, 52
d, 53 and 54 are connecting means, and 6 is a chuck tightening ring.
Claims (1)
れたチヤツク部材から成り、これらのチヤツク部
材は、芯パイプに連結される後端部近傍を連結手
段によつて相互合体保持され、かつ該芯パイプに
連結された該後端部付近からそれぞれの先端側が
拡径方向に漸次傾斜してチヤツク締付リングによ
り弾性復元力に抗して縮径方向に締付けられるよ
うになつていることを特徴とするシヤープペンシ
ルのリードチヤツク。 (2) 連結手段は、各チヤツク部材の後端側分割
面に設けられて相互が圧入係合される凹部へ凸部
とからなつていることを特徴とする実用新案登録
範囲第１項記載のシヤープペンシルのリードチヤ
ツク。 (3) 連結手段は、各チヤツク部材の後端側外周
縁部相互を周方向に展開可能に連繋する薄肉ヒン
ジからなつていることを特徴とする実用新案登録
範囲第１項記載のシヤープペンシルのリードチヤ
ツク。 (4) 連結手段は、各チヤツク部材の後端側相互
を組合せ合体状態に締付け固定する締付リングか
らなつていることを特徴とする実用新案登録範囲
第１項記載のシヤープペンシルのリードチヤツク
。 (5) チヤツク部材は、合成樹脂成形、または金
属を鍛造、プレス成形、焼結合金加工等により形
成されたことを特徴とする実用新案登録請求の範
囲第１項乃至第４項記載のシヤープペンシルのリ
ードチヤツク。[Claims for Utility Model Registration] (1) Consists of a chuck member that has a core insertion hole in the shaft center and is formed into multiple parts, and these chuck members connect the vicinity of the rear end that is connected to the core pipe. They are held together by a means, and from the vicinity of the rear end connected to the core pipe, the respective tip sides are gradually inclined in the direction of diameter expansion, and the chuck tightening ring resists the elastic restoring force in the direction of diameter contraction. A lead chuck for a sharp pencil that is designed to be tightened. (2) The utility model registration scope described in paragraph 1, wherein the connecting means is formed of a concave portion and a convex portion that are provided on the rear end side dividing surface of each chuck member and are press-fitted with each other. Sharp pencil lead chuck. (3) The sharpening pencil according to item 1 of the scope of utility model registration, wherein the connecting means is comprised of a thin hinge that connects the rear end side outer peripheral edges of each chuck member so that they can expand in the circumferential direction. Lead check. (4) A lead chuck for a sharp pencil according to item 1 of the scope of registration of a utility model, characterized in that the connecting means comprises a tightening ring that tightens and fixes the rear end sides of each chuck member in an assembled state. (5) The sharp pencil according to claims 1 to 4 of the utility model registration claim, wherein the chuck member is formed by synthetic resin molding, metal forging, press molding, sintered metal processing, etc. lead check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1582686U JPS62128885U (en) | 1986-02-07 | 1986-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1582686U JPS62128885U (en) | 1986-02-07 | 1986-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62128885U true JPS62128885U (en) | 1987-08-14 |
Family
ID=30807118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1582686U Pending JPS62128885U (en) | 1986-02-07 | 1986-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62128885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103785U (en) * | 1990-02-13 | 1991-10-28 | ||
| JP2002234292A (en) * | 2001-02-08 | 2002-08-20 | Pilot Precision Co Ltd | Retractable mechanical pencil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529218B2 (en) * | 1974-05-27 | 1980-08-01 | ||
| JPS55118897A (en) * | 1979-03-08 | 1980-09-12 | Takeo Abe | Preparation of chuck device for extrusion type pencil |
| JPS56106897A (en) * | 1980-01-31 | 1981-08-25 | Mitsuko Yagi | Unified structure of lead guiding hole for lead case of propelling pencil and chuck hole section for lead sending |
| JPS5938082B2 (en) * | 1981-03-24 | 1984-09-13 | 株式会社 石川時鉄工所 | Flower pot press molding machine |
-
1986
- 1986-02-07 JP JP1582686U patent/JPS62128885U/ja active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5529218B2 (en) * | 1974-05-27 | 1980-08-01 | ||
| JPS55118897A (en) * | 1979-03-08 | 1980-09-12 | Takeo Abe | Preparation of chuck device for extrusion type pencil |
| JPS56106897A (en) * | 1980-01-31 | 1981-08-25 | Mitsuko Yagi | Unified structure of lead guiding hole for lead case of propelling pencil and chuck hole section for lead sending |
| JPS5938082B2 (en) * | 1981-03-24 | 1984-09-13 | 株式会社 石川時鉄工所 | Flower pot press molding machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103785U (en) * | 1990-02-13 | 1991-10-28 | ||
| JP2002234292A (en) * | 2001-02-08 | 2002-08-20 | Pilot Precision Co Ltd | Retractable mechanical pencil |
| JP4601185B2 (en) * | 2001-02-08 | 2010-12-22 | 株式会社パイロットコーポレーション | Knock mechanical pencil |
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