JP2514880Y2 - Eraser holder - Google Patents
Eraser holderInfo
- Publication number
- JP2514880Y2 JP2514880Y2 JP3604190U JP3604190U JP2514880Y2 JP 2514880 Y2 JP2514880 Y2 JP 2514880Y2 JP 3604190 U JP3604190 U JP 3604190U JP 3604190 U JP3604190 U JP 3604190U JP 2514880 Y2 JP2514880 Y2 JP 2514880Y2
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- chuck
- gripping
- gripping piece
- tightening ring
- 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.)
- Expired - Lifetime
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案はチヤツクを利用して消ゴムを繰出し可能とし
た消ゴムホルダーに関する。[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an eraser holder capable of feeding out an eraser using a chuck.
（従来の技術） チヤツクを利用して消ゴムを繰出し可能としたものは
例えば実開昭51-1046号公報等により公知である。そし
て、チヤツクにおける消ゴム把持部の外周面は一般的に
一様なテーパ状となつていてその外周部には締付リング
が取付けられている。(Prior Art) A device in which an eraser can be delivered by using a chuck is known from, for example, Japanese Utility Model Publication No. 51-1046. The outer peripheral surface of the eraser gripping portion of the chuck generally has a uniform taper shape, and a tightening ring is attached to the outer peripheral portion.
（考案が解決しようとする課題） 従来の消ゴムホルダーのチヤツクは、寸法のバラツキ
によつて外径が所定値よりも幾分小さい消ゴムを把持し
た場合に締め付けがきかず消ゴムが抜脱する問題があつ
た。(Problems to be solved by the invention) The conventional chuck of the eraser holder has a problem that the eraser may not be tightened and the eraser may be pulled out when the eraser whose outer diameter is slightly smaller than the predetermined value is gripped due to the dimensional variation. It was
そこで本考案は、寸法のバラツキによつて外径が所定
値よりも幾分小さい消ゴムを把持した場合でも、その消
ゴムを確実に締め付けて固定できる消ゴムホルダーの提
供を目的とする。Therefore, it is an object of the present invention to provide an eraser holder that can securely tighten and fix the eraser even if the eraser has an outer diameter slightly smaller than a predetermined value due to dimensional variation.
（課題を解決するための手段） 上記目的を達成するために、本考案における消ゴムホ
ルダーは、消ゴム（１）を把持するチヤツク（２）と、
該チヤツク（２）において外周面をテーパ状とした消ゴ
ム把持部（３）の外周部に取付ける締付リング（４）と
を備え、チヤツク（２）の消ゴム把持部（３）の一部に
コ字状の切欠溝（５）で囲まれて半径方向に弾性変形可
能な可撓把持片部（６）を形成し、該可撓把持片部
（６）の外面に消ゴム把持部（３）の他の部位の外面よ
りも急勾配のテーパを有する隆起部（７）を設けたこと
を特徴として構成されるものである。(Means for Solving the Problems) In order to achieve the above object, an eraser holder according to the present invention comprises a chuck (2) for holding an eraser (1),
The chuck (2) is provided with a tightening ring (4) which is attached to the outer peripheral portion of the eraser gripping portion (3) having a tapered outer peripheral surface, and a part of the eraser gripping portion (3) of the chuck (2) is provided with A flexible gripping piece (6) that is elastically deformable in the radial direction is formed by being surrounded by a V-shaped notch groove (5), and an eraser gripping part (3) is formed on the outer surface of the flexible gripping piece (6). It is characterized in that a raised portion (7) having a taper steeper than the outer surface of another portion is provided.
（作用） 外径が所定値より幾分小さい消ゴム（１）をチヤツク
（２）の消ゴム把持部（３）に挿通させた場合、可撓把
持片部（６）の隆起部（７）へ締付リング（４）が乗り
上げて可撓把持片部（６）の内面部が他の部位の内面よ
り幾分内側へ突出して消ゴム（１）の側面へ食い込んで
消ゴム（１）を強く締め付けることになる。(Operation) When an eraser (1) having an outer diameter slightly smaller than a predetermined value is inserted into the eraser gripping part (3) of the chuck (2), it is tightened to the raised part (7) of the flexible gripping piece (6). When the attachment ring (4) rides up and the inner surface of the flexible gripping piece (6) projects slightly inward from the inner surface of the other part, it bites into the side surface of the eraser (1) and tightens the eraser (1) firmly. Become.
（実施例） 以下、図面に基づき実施例について説明する。チヤツ
ク（２）はプラスチック製で第１図に示すように前端に
２つ割りでその内面によつて横断面が円形の丸棒状の消
ゴム（１）を挾み付ける消ゴム把持部（３）を設け、そ
の後方に消ゴム挿通パイプ部（８）を延設している。消
ゴム把持部（３）の外周面は前端から後方へ向かうに従
い次第に外径を縮小させるテーパ状となつていて、割り
溝（９）で分断された両側の各半筒状部位のそれぞれの
中央部にコ字状の切欠溝（５）で囲まれて半径方向に弾
性変形可能な可撓把持片部（６）を形成し、この可撓把
持片部（６）における略前半部の外面に消ゴム把持部
（３）の他の部位の外面よりも急勾配のテーパを有する
隆起部（７）を設けている。尚、可撓把持片部（６）に
おける略後半部の外面は消ゴム把持部（３）の他の部位
と同一のテーパになつている。締付リング（４）は金属
もしくは樹脂製で短い筒状を呈し、前記チヤツク（２）
の消ゴム把持部（３）の外周部に取付けられている。こ
の締付リング（４）は、チヤツク（２）の消ゴム把持部
（３）に外径が略所定値の消ゴム（１）を挿通した場合
に、第３図に示すように、消ゴム把持部（３）に対し前
端が前記可撓把持片部（６）の略中央部までしか前進で
きないように内径の寸法が設定されていて、外径が所定
値よりも小さい消ゴム（１）を消ゴム把持部（３）に挿
通した場合に第３図に示す位置より前方へ締付リング
（４）が移動できるようになつている。そして締付リン
グ（４）が第３図に示す位置より前方へ移動すると、第
２図に示すように締付リング（４）が可撓把持片部
（６）における隆起部（７）へ乗り上げるので可撓把持
片部（６）が半径方向の中心へ向つて押圧され、可撓把
持片部（６）の内面部が消ゴム把持部（３）の他の部位
の内面部よりも内側へ突出して消ゴム（１）の側面に食
い込み消ゴム（１）を強く締め付けることになる。尚、
消ゴムホルダーの全体構造は第４図に示す通りである。
すなわち、握り軸（10）の前端部にチヤツクカバー（1
1）が固定され、チヤツク（２）の消ゴム挿通パイプ部
（８）がチヤツクカバー（11）を貫通してその後端に消
ゴム収容筒（12）が連結され、該消ゴム収容筒（12）の
後端部に握り軸（10）の後端開口から突出するノツク筒
（13）が嵌着され、チヤツクカバー（11）と消ゴム収容
筒（12）の間にチヤツク（２）を後方へ付勢するスプリ
ング（14）が介装され、前端に消ゴム挿通孔（15）を有
する先軸（16）の後端内面部がチヤツクカバー（11）の
前端外面部に螺着され、チヤツク（２）が前進した場合
に締付リング（４）が当接する段部（17）が先軸（16）
の内部に設けられている。尚、これらの構成要素の機能
は従来のチヤツク式消ゴムホルダーと同一で既に周知な
のでその説明は省略する。(Example) Hereinafter, an example is described based on a drawing. As shown in Fig. 1, the chuck (2) is made of plastic and is provided with an eraser gripping part (3) at the front end, which is divided into two and which has an inner surface to which a round bar-shaped eraser (1) is pinched. , And an eraser insertion pipe portion (8) is provided behind it. The outer peripheral surface of the eraser gripping portion (3) is tapered so that the outer diameter gradually decreases from the front end toward the rear, and the central portions of the respective semi-cylindrical parts on both sides divided by the split groove (9). A flexible gripping piece (6) surrounded by a U-shaped notch groove (5) and elastically deformable in the radial direction is formed, and an eraser is provided on the outer surface of the front half of the flexible gripping piece (6). A ridge (7) having a taper steeper than the outer surface of the other part of the grip (3) is provided. The outer surface of the rear half of the flexible gripping piece (6) has the same taper as other parts of the eraser gripping portion (3). The tightening ring (4) is made of metal or resin and has a short tubular shape.
It is attached to the outer peripheral portion of the eraser grip portion (3). This tightening ring (4) has an eraser gripping portion (3) of the chuck (2), as shown in FIG. 3), the size of the inner diameter is set so that the front end can advance only to the substantially central portion of the flexible gripping piece (6), and the eraser (1) having an outer diameter smaller than a predetermined value is attached to the eraser gripping portion. When it is inserted into (3), the tightening ring (4) can be moved forward from the position shown in FIG. When the tightening ring (4) moves forward from the position shown in FIG. 3, the tightening ring (4) rides up on the ridge (7) of the flexible gripping piece (6) as shown in FIG. Therefore, the flexible gripping piece (6) is pressed toward the center in the radial direction, and the inner surface of the flexible gripping piece (6) protrudes more inward than the inner surface of the other part of the eraser gripping part (3). Bite into the side surface of the eraser (1) to strongly tighten the eraser (1). still,
The overall structure of the eraser holder is as shown in FIG.
That is, attach the chuck cover (1) to the front end of the grip shaft (10).
1) is fixed, the eraser insertion pipe portion (8) of the chuck (2) penetrates the check cover (11), and the rear end of the eraser storage cylinder (12) is connected to the rear end of the eraser storage cylinder (12). A knock cylinder (13) protruding from the rear end opening of the grip shaft (10) is fitted in the portion, and a spring (for biasing the chuck (2) rearward between the chuck cover (11) and the eraser accommodating cylinder (12) ( 14) is inserted, and the inner surface of the rear end of the front shaft (16) having the eraser insertion hole (15) at the front end is screwed to the outer surface of the front end of the chuck cover (11), and the chuck (2) advances. The step (17) with which the tightening ring (4) contacts is the front shaft (16).
It is provided inside. The functions of these constituent elements are the same as those of the conventional chuck type eraser holder and are already known, so that the description thereof will be omitted.
（考案の効果） 本考案の消ゴムホルダーは以上のように、寸法のバラ
ツキにより外径が所定値より幾分小さい消ゴムを装填し
た場合でもその消ゴムをチヤツクにより確実に締め付け
て固定できるものであり、よつて消ゴムの抜脱を防止で
きる効果がある。(Effect of the invention) As described above, the eraser holder of the present invention is capable of securely tightening and fixing the eraser with a chuck even when an eraser having an outer diameter slightly smaller than a predetermined value is loaded due to the variation in dimensions. Therefore, it is effective in preventing the removal of the eraser.
図は本考案の実施例を示したもので、第１図はチヤツク
の要部斜視図、第２図は外径が所定値値より幾分小さい
消ゴムをチヤツクが把持した状態のチヤツクと締付リン
グの位置関係を示す要部断面図、第３図は外径が略所定
値の消ゴムをチヤツクが把持した状態のチヤツクと締付
リングの位置関係を示す要部断面図、第４図は消ゴムホ
ルダーの全体構造を示す一部省略断面図である。 （１）……消ゴム、（２）……チヤツク、（３）……消
ゴム把持部、（４）……締付リング、（５）……切欠
溝、（６）……可撓把持片部、（７）……隆起部。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view of a main part of a chuck, and FIG. 2 is a chuck in which a chuck holds an eraser whose outer diameter is slightly smaller than a predetermined value. FIG. 3 is a cross-sectional view of the essential parts showing the positional relationship of the rings, FIG. 3 is a cross-sectional view of the essential parts showing the positional relationship between the chuck and the tightening ring when the chuck holds an eraser having an outer diameter of approximately a predetermined value, and FIG. It is a partially omitted sectional view showing the entire structure of the holder. (1) ... eraser, (2) ... chuck, (3) ... eraser gripping part, (4) ... tightening ring, (5) ... notch groove, (6) ... flexible gripping piece part , (7) …… Raised part.
Claims (1)
と、該チヤツク（２）において外周面をテーパ状とした
消ゴム把持部（３）の外周部に取付ける締付リング
（４）とを備え、チヤツク（２）の消ゴム把持部（３）
の一部にコ字状の切欠溝（５）で囲まれて半径方向に弾
性変形可能な可撓把持片部（６）を形成し、該可撓把持
片部（６）の外面に消ゴム把持部（３）の他の部位の外
面よりも急勾配のテーパを有する隆起部（７）を設けた
ことを特徴とする消ゴムホルダー。1. A chuck (2) for holding an eraser (1).
And a tightening ring (4) attached to the outer peripheral part of the eraser gripping part (3) having a tapered outer peripheral surface in the chuck (2), and the eraser gripping part (3) of the chuck (2).
A flexible gripping piece (6) which is elastically deformable in the radial direction and is surrounded by a U-shaped notch groove (5) in a part thereof, and an eraser grip is provided on the outer surface of the flexible gripping piece (6). An eraser holder characterized in that a raised portion (7) having a taper steeper than the outer surface of the other portion of the portion (3) is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3604190U JP2514880Y2 (en) | 1990-04-03 | 1990-04-03 | Eraser holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3604190U JP2514880Y2 (en) | 1990-04-03 | 1990-04-03 | Eraser holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03126695U JPH03126695U (en) | 1991-12-20 |
| JP2514880Y2 true JP2514880Y2 (en) | 1996-10-23 |
Family
ID=31541926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3604190U Expired - Lifetime JP2514880Y2 (en) | 1990-04-03 | 1990-04-03 | Eraser holder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514880Y2 (en) |
-
1990
- 1990-04-03 JP JP3604190U patent/JP2514880Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03126695U (en) | 1991-12-20 |
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