JP2001121876A - Structure for installation of elastic member on barrel - Google Patents
Structure for installation of elastic member on barrelInfo
- Publication number
- JP2001121876A JP2001121876A JP30772499A JP30772499A JP2001121876A JP 2001121876 A JP2001121876 A JP 2001121876A JP 30772499 A JP30772499 A JP 30772499A JP 30772499 A JP30772499 A JP 30772499A JP 2001121876 A JP2001121876 A JP 2001121876A
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- shaft
- mirror
- surface portion
- barrel
- 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.)
- Withdrawn
Links
Landscapes
- Fishing Rods (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、弾性部材の軸体へ
の取り付け構造に関するものであり、具体的には、弾性
材質からなるグリップの筆記具や釣り竿、ドアノブ、鍋
ややかんの取っ手などへの取り付け構造、椅子の脚部下
端に取り付けられる傷防止用のキャップなどの取り付け
構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching an elastic member to a shaft, and more specifically to a grip for a writing instrument, a fishing rod, a door knob, a pot or a kettle handle made of an elastic material. The present invention relates to an attachment structure, such as a cap for preventing damage, which is attached to a lower end of a leg of a chair.
【０００２】[0002]
【従来の技術】弾性部材を軸体に取り付けたものの１例
として、筆記具がある。詳述すると、前記弾性部材や、
その弾性部材を取り付ける軸体は、射出成形などによっ
て成形されていることが多く、その結果、弾性部材の内
側表面や軸体の外側表面は、鏡面な状態となって成形さ
れることが多い。しかし、このような構成のものであっ
ては、軸体に弾性部材を挿着する際、その挿着過程で弾
性部材の内面と軸体の外面とが密着してしまい、非常に
挿着し難いものであった。2. Description of the Related Art A writing instrument is an example of an elastic member attached to a shaft. Specifically, the elastic member,
The shaft to which the elastic member is attached is often formed by injection molding or the like, and as a result, the inner surface of the elastic member and the outer surface of the shaft are often formed in a mirror-like state. However, in such a configuration, when the elastic member is inserted into the shaft body, the inner surface of the elastic member and the outer surface of the shaft body come into close contact with each other during the insertion process. It was difficult.
【０００３】[0003]
【発明が解決しようとする課題】そこで、軸体の表面に
ブラスト加工などによって微少な凹凸を形成し、前記弾
性部材を挿着し易いようにしたが、その反面、回転しや
すく、また前後動もし易くなってしまい、筆記の際に違
和感が出てきてしまうものであった。In view of the above, minute irregularities are formed on the surface of the shaft body by blasting or the like to make it easy to insert the elastic member. If it had become easier, it would be awkward when writing.
【０００４】[0004]
【課題を解決するための手段】本発明は、弾性部材の軸
体への取り付け構造であって、その取り付け部分の少な
くとも一方の部材の表面に粗面な部分と鏡面な部分とを
形成したことを要旨とする。SUMMARY OF THE INVENTION The present invention relates to a structure for mounting an elastic member to a shaft, wherein a rough surface portion and a mirror surface portion are formed on the surface of at least one of the mounting portions. Is the gist.
【０００５】[0005]
【実施例】シャープペンシルの把持する部分に挿着され
ているゴムグリップを例に挙げ説明する。まず、基本的
な構成を簡単に説明する。前軸１の前方部分には、凹部
２が形成されており、その凹部２には弾性材質よりなる
ゴムグリップ３が挿着されている。また、前軸１の内部
には、芯タンク４が前後動可能に配置されており、その
芯タンク４の前方には、チャック体５や、そのチャック
体５の開閉を行うチャックリング６などが配置されてい
る。参照符号７は、前記前軸１の先端に着脱自在に取り
付けられた先部材であり、その先部材７の内部には、芯
の後退を規制する芯戻り止め部材８が圧入されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS A rubber grip inserted into a portion to be gripped by a mechanical pencil will be described as an example. First, a basic configuration will be briefly described. A recess 2 is formed in a front portion of the front shaft 1, and a rubber grip 3 made of an elastic material is inserted into the recess 2. A lead tank 4 is disposed inside the front shaft 1 so as to be able to move back and forth, and a chuck body 5 and a chuck ring 6 for opening and closing the chuck body 5 are provided in front of the lead tank 4. Are located. Reference numeral 7 denotes a tip member detachably attached to the front end of the front shaft 1. Inside the tip member 7, a center detent member 8 for restricting retraction of the core is press-fitted.
【０００６】一方、前記前軸１の後方には、長い消しゴ
ム８の出没を行う螺旋機構９が着脱自在に取り付けられ
ている。その螺旋機構９は、前記前軸１に対して回転不
能に挿着され、案内溝が形成された棒状体案内部材１０
や螺旋溝が形成された後軸１１、並びに、前記案内溝や
螺旋溝に係合する消しゴム受け部材１２などから構成さ
れている。以上の構成は、一般的な構成であるが、本願
発明は、前記ゴムグリップ３の凹部２への取り付け構造
にある。以下、詳述する。On the other hand, behind the front shaft 1, a spiral mechanism 9 for extending and retracting a long eraser 8 is detachably attached. The spiral mechanism 9 is non-rotatably inserted into the front shaft 1 and has a rod-shaped body guide member 10 formed with a guide groove.
And a rear shaft 11 on which a spiral groove is formed, and an eraser receiving member 12 which engages with the guide groove and the spiral groove. The above configuration is a general configuration, but the present invention lies in a mounting structure of the rubber grip 3 to the recess 2. The details will be described below.
【０００７】前記凹部２には、微細な凹凸により粗面部
１３が形成されている。この粗面部１３は、前軸１を成
形後にブラスト加工や放電加工などによって形成しても
良いが、生産性の観点から、予め、前軸１を成形する金
型の内面（勿論、少なくとも凹部２である。）に上記の
方法によって微細な凹凸を形成し、その金型で前軸１を
成形するのが好ましい。ちなみに、本例においては、前
記の粗面部１３は、金型内面に１２ミクロンメートルの
ビーズでブラスト加工を施し、射出成形によって成形し
ている。その結果、成形された軸体１の凹部２に形成さ
れる粗面部１３の微細な凹凸の高低差は、１２ミクロン
メートル程度のものとなっている。しかし、この高低差
に限られることはなく、挿着されるゴムグリップ３の材
質や高度などによっても種々選択可能である。また、前
記前軸１の凹部２（粗面部１３）の両端部には、鏡面部
１４、１５が形成されているが、前方のみであっても良
く（図３参照）、或いは、中間部に形成しても良い。The concave portion 2 has a rough surface portion 13 formed by fine irregularities. The rough surface portion 13 may be formed by blasting, electric discharge machining, or the like after the front shaft 1 is formed. However, from the viewpoint of productivity, the inner surface of the mold for forming the front shaft 1 (of course, at least the concave portion 2 is formed). It is preferable that fine irregularities are formed by the above-mentioned method, and the front shaft 1 is formed by the mold. Incidentally, in this example, the rough surface portion 13 is formed by subjecting the inner surface of the mold to blast processing with beads of 12 μm and injection molding. As a result, the height difference of the fine unevenness of the rough surface portion 13 formed in the concave portion 2 of the formed shaft body 1 is about 12 μm. However, the height difference is not limited, and various selections can be made according to the material and height of the rubber grip 3 to be inserted. Mirror surfaces 14 and 15 are formed at both ends of the concave portion 2 (rough surface 13) of the front shaft 1, but may be provided only at the front (see FIG. 3) or at an intermediate portion. It may be formed.
【０００８】一方、前記凹部２（粗面部１３）に挿着さ
れるゴムグリップ３の内側表面は、ほぼ鏡面な状態で成
形されている（鏡面部１６）が、挿着の容易性を向上さ
せたい場合には、全体的に粗面な形状とするのが好まし
い。しかし、挿着後に於けるゴムグリップ３の凹部２に
対する回転防止効果をも向上させるには、前記凹部２と
ゴムグリップ３のそれぞれが対応する少なくとも１部分
に、鏡面部を形成した方が良い。On the other hand, the inner surface of the rubber grip 3 inserted into the recess 2 (rough surface portion 13) is formed in a substantially mirror-finished state (mirror surface portion 16). If desired, it is preferable that the entire surface has a rough shape. However, in order to improve the effect of preventing the rubber grip 3 from rotating with respect to the concave portion 2 after the attachment, it is preferable to form a mirror surface portion in at least one portion corresponding to each of the concave portion 2 and the rubber grip 3.
【０００９】[0009]
【作用】粗面部によりゴムグリップがスムーズに挿着さ
れるが、挿着後においては、少なくとも１方に形成され
た鏡面部の接触により、ゴムグリップの前軸に対する相
対的な位置ずれが防止される。The rubber grip is smoothly inserted by the rough surface portion, but after the insertion, the relative position of the rubber grip with respect to the front shaft is prevented by the contact of at least one of the mirror surfaces. You.
【００１０】第２例を図５に示し説明する。ゴムグリッ
プ３の内側の表面に粗面部１７を形成すると共に、その
端部近傍に鏡面部１８、１９を形成した例であるが、前
端部のみに形成しても良く（図６参照）、或いは、中間
部などに形成しても良い。勿論、このゴムグリップ３が
挿着される軸筒１の凹部２の少なくとも前記鏡面部１
８、１９が接触する位置には、鏡面部が形成されてい
る。しかし、その凹部の鏡面部は、部分的にではなく、
全体的に形成しても良い。尚、前記第１例についても言
えることであるが、鏡面部を凹部やゴムグリップの中間
部に形成することによって、該部分が把持する部分とな
り、その結果、シャープペンシルを把持した際、その把
持力で、それぞれの鏡面部の接触力が高まり、より一
層、ゴムグリップの凹部に対する回転やずれが防止され
る。A second example will be described with reference to FIG. This is an example in which the rough surface portion 17 is formed on the inner surface of the rubber grip 3 and the mirror surface portions 18 and 19 are formed in the vicinity of the end portion, but may be formed only on the front end portion (see FIG. 6), or , An intermediate portion, or the like. Of course, at least the mirror portion 1 of the concave portion 2 of the barrel 1 into which the rubber grip 3 is inserted.
A mirror surface portion is formed at a position where 8 and 19 are in contact with each other. However, the mirror surface of the recess is not partial,
It may be formed entirely. As can be said of the first example, by forming the mirror surface portion in the concave portion or the intermediate portion of the rubber grip, the portion becomes a gripping portion. As a result, when the mechanical pencil is gripped, By the force, the contact force of each mirror surface portion is increased, and the rotation and displacement of the rubber grip with respect to the concave portion are further prevented.
【００１１】[0011]
【発明の効果】本発明は、弾性部材の軸体への取り付け
構造であって、その取り付け部分の少なくとも一方の部
材の表面に粗面な部分と鏡面な部分とを形成したので組
立性が向上することは勿論、弾性部材が軸体に対して回
転したり、ずれたりすることもない。According to the present invention, there is provided a structure for mounting an elastic member to a shaft body, wherein a rough surface portion and a mirror surface portion are formed on the surface of at least one of the mounting portions, so that the assembling property is improved. Of course, the elastic member does not rotate or shift with respect to the shaft body.
【図１】本発明の第１例を示す縦断面図。FIG. 1 is a longitudinal sectional view showing a first example of the present invention.
【図２】図１の弾性部材を取り除いた正面図。FIG. 2 is a front view of FIG. 1 from which an elastic member is removed.
【図３】第１例の変形例を示す正面図。FIG. 3 is a front view showing a modification of the first example.
【図４】第１例の弾性部材を示す縦断面斜視図。FIG. 4 is a longitudinal sectional perspective view showing an elastic member of a first example.
【図５】第２例を示す弾性部材を示す縦断面斜視図。FIG. 5 is a vertical sectional perspective view showing an elastic member showing a second example.
【図６】第２例の変形例を示す縦断面斜視図。FIG. 6 is a vertical sectional perspective view showing a modification of the second example.
【符号の説明】 １ 軸体 ２ 凹部 ３ 弾性部材 ４ 芯タンク ５ チャック体 ６ チャックリング ７ 先部材 ８ 芯戻り止め部材 ９ 螺旋機構 １０ 棒状体案内部材 １１ 後軸 １２ 消しゴム受け部材 １３ 粗面部 １４ 鏡面部 １５ 鏡面部 １６ 鏡面部 １７ 粗面部 １８ 鏡面部 １９ 鏡面部DESCRIPTION OF REFERENCE NUMERALS 1 shaft 2 concave portion 3 elastic member 4 core tank 5 chuck body 6 chuck ring 7 leading member 8 core detent member 9 helical mechanism 10 rod-shaped body guide member 11 rear shaft 12 eraser rubber receiving member 13 rough surface portion 14 mirror surface Part 15 Mirror part 16 Mirror part 17 Rough part 18 Mirror part 19 Mirror part
Claims (2)
て、その取り付け部分の少なくとも一方の部材の表面に
粗面な部分と鏡面な部分とを形成したことを特徴とする
弾性部材の軸体への取り付け構造。A structure for attaching an elastic member to a shaft, wherein a rough surface portion and a mirror surface portion are formed on the surface of at least one of the attachment portions. Mounting structure to the body.
の取り付け構造であって、前記軸体の表面に粗面な部分
と鏡面な部分とを形成すると共に、その鏡面な部分と対
応する前記弾性部材の内側の表面にも、少なくとも鏡面
な部分を形成したことをしたことを特徴とする弾性部材
の軸体への取り付け構造。2. The mounting structure for an elastic member according to claim 1, wherein the surface of the shaft has a rough surface portion and a mirror surface portion, and the mirror surface portion has a rough surface portion and a mirror surface portion. At least a mirror-like portion is formed on the inner surface of the corresponding elastic member, wherein the elastic member is attached to the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30772499A JP2001121876A (en) | 1999-10-28 | 1999-10-28 | Structure for installation of elastic member on barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30772499A JP2001121876A (en) | 1999-10-28 | 1999-10-28 | Structure for installation of elastic member on barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001121876A true JP2001121876A (en) | 2001-05-08 |
Family
ID=17972498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30772499A Withdrawn JP2001121876A (en) | 1999-10-28 | 1999-10-28 | Structure for installation of elastic member on barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001121876A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005000600A1 (en) | 2003-06-26 | 2005-01-06 | Kabushiki Kaisha Pilot Corporation | Writing instrument |
| JP2005212394A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Pencil Co Ltd | Barrel of writing instrument |
| JP2010155389A (en) * | 2008-12-26 | 2010-07-15 | Pentel Corp | Shaft tube |
-
1999
- 1999-10-28 JP JP30772499A patent/JP2001121876A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005000600A1 (en) | 2003-06-26 | 2005-01-06 | Kabushiki Kaisha Pilot Corporation | Writing instrument |
| EP1642750A1 (en) * | 2003-06-26 | 2006-04-05 | Kabushiki Kaisha Pilot Corporation | Writing instrument |
| EP1642750A4 (en) * | 2003-06-26 | 2009-04-01 | Pilot Corp | Writing instrument |
| US7794164B2 (en) | 2003-06-26 | 2010-09-14 | Kabushiki Kaisha Pilot Corporation | Layered gripping member for a writing instrument |
| JP2005212394A (en) * | 2004-01-30 | 2005-08-11 | Mitsubishi Pencil Co Ltd | Barrel of writing instrument |
| JP2010155389A (en) * | 2008-12-26 | 2010-07-15 | Pentel Corp | Shaft tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051118 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20061117 |