JPS625355Y2 - - Google Patents
Info
- Publication number
- JPS625355Y2 JPS625355Y2 JP1984051284U JP5128484U JPS625355Y2 JP S625355 Y2 JPS625355 Y2 JP S625355Y2 JP 1984051284 U JP1984051284 U JP 1984051284U JP 5128484 U JP5128484 U JP 5128484U JP S625355 Y2 JPS625355 Y2 JP S625355Y2
- Authority
- JP
- Japan
- Prior art keywords
- pencil
- spiral
- protrusion
- outer peripheral
- peripheral surface
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【考案の詳細な説明】
本考案は本体の外周面に螺旋形状を設けた鉛筆
の改良に関する。[Detailed Description of the Invention] The present invention relates to an improvement of a pencil having a spiral shape on the outer peripheral surface of the main body.
鉛筆本体の外周面に螺旋形状を設けることは実
開昭57−10869号公報によつて既に公知である。
これは指の固定がしつくりといき児童等に鉛筆の
正しい持ち方を習慣づけるのに有効であり、また
外観上の単調さを払拭して装飾性を向上させるも
のである。しかしながら従来の螺旋形状は鉛筆本
体の外周面を削つて窪み状としたものが殆どであ
り、これによると次の様な欠点が生ずることにな
る。 It is already known from Japanese Utility Model Application No. 10869/1983 to provide a spiral shape on the outer peripheral surface of a pencil body.
This is effective in keeping the fingers firmly in place and instilling in children the habit of holding a pencil correctly, and also eliminates the monotony of the appearance and improves the decorativeness. However, in most conventional spiral shapes, the outer peripheral surface of the pencil body is shaved to form a concave shape, which causes the following drawbacks.
即ち鉛筆本体の全長に亘つて切欠部ができるた
め強度が低下して折損しやすくなること。又、切
削加工により窪みを形成するためその縁部が円弧
状になりにくく角張るので指に食い込んで長時間
の使用に不向きであること。もし窪みの縁部を面
取りしたりアールをつけたりすると工程が増加し
てしまうこと。塗装後に自然乾燥させて放置して
いると塗料が窪みの斜面によつて流れ込み塗装に
ムラが生ずること等である。 In other words, a notch is formed along the entire length of the pencil body, reducing its strength and making it more likely to break. Further, since the recesses are formed by cutting, the edges of the recesses are difficult to form an arc and are angular, so they dig into fingers and are unsuitable for long-term use. If the edges of the depression are chamfered or rounded, the number of steps will increase. If the paint is left to air dry after painting, the paint will flow down the slopes of the depressions, causing uneven paint.
本考案は斯る欠点の解消を目的とするものであ
つて、本体の外周面に一端から他端に亘つて僅か
に弾性と柔軟性を備えた素材によつて断面蒲鉾形
を呈する螺旋状の突起を設けることを要旨とする
ものである。 The present invention aims to eliminate such drawbacks, and the present invention has a spiral shape having a semicircular cross section made of a material with slight elasticity and flexibility from one end to the other end on the outer peripheral surface of the main body. The gist is to provide a protrusion.
図は本考案の実施例を示す縦断面図であり、１
が鉛筆本体、２が螺旋状突起、３が芯を夫々示
す。螺旋状突起２の形成方法としては次の様な実
施例が可能である。 The figure is a longitudinal cross-sectional view showing an embodiment of the present invention.
indicates the pencil body, 2 indicates the spiral protrusion, and 3 indicates the lead. As a method of forming the spiral protrusion 2, the following embodiments are possible.
先ず第１実施例としては鉛筆本体１の外周面に
発泡剤を螺旋状に塗布したのち加熱して発泡させ
螺旋状突起２を形成するもの。次に第２実施例と
しては片面が曲面状のゴムバンド等を鉛筆本体１
の外周面に螺旋状に巻き付けて接着剤で固定し螺
旋状突起２を形成するものである。そしてこれら
の実施例においては螺旋状突起２は断面が蒲鉾形
であるのみならず若干の柔軟性及び弾性を有する
ことが必要とされる。 First, in the first embodiment, a foaming agent is spirally applied to the outer circumferential surface of a pencil body 1 and then heated to foam to form spiral protrusions 2. Next, as a second embodiment, a rubber band or the like having a curved surface on one side is attached to the pencil body 1.
The helical protrusion 2 is formed by wrapping the protrusion helically around the outer peripheral surface of the protrusion 2 and fixing it with an adhesive. In these embodiments, the spiral protrusion 2 is not only required to have a semicircular cross section but also to have some flexibility and elasticity.
本考案は叙上の如く構成されることにより次の
様な効果を有する。 By being constructed as described above, the present invention has the following effects.
まず鉛筆本体に窪みの如き切欠部を形成しない
から強度が損われず却つて補強されるようになる
こと。窪みの如くその縁部が角張ることもなく断
面が蒲鉾形であつてその上本体とは別素材によつ
て若干の柔軟性及び弾性を有するので触感が改善
され長時間の使用にも疲れにくくなること。窪み
の場合のように斜面によつて塗料が流れて塗装上
のムラが生ずるようなこともなくなつて装飾性を
向上させることができる等である。 First, since no notches such as recesses are formed in the pencil body, the strength is not impaired and on the contrary, it is reinforced. The edges are not angular like a recess, and the cross section is semi-cylindrical.Furthermore, it is made of a different material from the main body, so it has some flexibility and elasticity, which improves the feel and reduces fatigue even when used for long periods of time. To become a. Unlike in the case of depressions, the paint does not flow on the slopes and cause unevenness in the coating, and the decorativeness can be improved.
図は本考案の実施例を示す縦断面図である。
１……鉛筆本体、２……螺旋状突起、３……
芯。
The figure is a longitudinal sectional view showing an embodiment of the present invention. 1...Pencil body, 2...Spiral projection, 3...
core.
Claims (1)
性と柔軟性を備えた素材によつて断面蒲鉾形を呈
する螺旋状の突起が設けられて成る鉛筆。 A pencil having a spiral protrusion having a semicircular cross section made of a slightly elastic and flexible material extending from one end to the other on the outer peripheral surface of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5128484U JPS60164077U (en) | 1984-04-07 | 1984-04-07 | pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5128484U JPS60164077U (en) | 1984-04-07 | 1984-04-07 | pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60164077U JPS60164077U (en) | 1985-10-31 |
| JPS625355Y2 true JPS625355Y2 (en) | 1987-02-06 |
Family
ID=30570186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5128484U Granted JPS60164077U (en) | 1984-04-07 | 1984-04-07 | pencil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60164077U (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5710869Y2 (en) * | 1974-05-17 | 1982-03-03 | ||
| JPS56123283U (en) * | 1980-02-19 | 1981-09-19 |
-
1984
- 1984-04-07 JP JP5128484U patent/JPS60164077U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60164077U (en) | 1985-10-31 |
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