JP2585729Y2 - Joint device for core tank and chuck body - Google Patents
Joint device for core tank and chuck bodyInfo
- Publication number
- JP2585729Y2 JP2585729Y2 JP3679092U JP3679092U JP2585729Y2 JP 2585729 Y2 JP2585729 Y2 JP 2585729Y2 JP 3679092 U JP3679092 U JP 3679092U JP 3679092 U JP3679092 U JP 3679092U JP 2585729 Y2 JP2585729 Y2 JP 2585729Y2
- Authority
- JP
- Japan
- Prior art keywords
- chuck body
- press
- tank
- lead
- core tank
- 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 - Fee Related
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】[Detailed description of the invention]
【０００１】[0001]
【産業上の利用分野】本考案は、シャープペンシルの内
部に配置されている芯タンクと、鉛芯を把持し繰り出し
を行うチャック体との継手装置にあって、芯タンクとチ
ャック体とを簡単に、確実に連結する継手装置に関する
ものである。The present invention relates to a joint device for a lead tank disposed inside a mechanical pencil and a chuck body for gripping and feeding a lead core. In addition, the present invention relates to a coupling device for securely connecting.
【０００２】[0002]
【従来の技術】従来、シャープペンシルなどの芯タンク
とチャック体との継手装置として、実開昭５２−７６７
３９号公報が知られている。この公報には、芯収容管に
合成樹脂製の筒状部を圧入後、芯収容管を外周よりカシ
メることにより前記筒状部を芯収容管に固定し、その固
定された筒状部に、後方につばが形成されたチャックを
圧入したシャープペンシルが開示されている。また、実
開昭５２−２３号公報には、樹脂製の芯ケースに後方に
凹凸嵌合部が形成されたチャックを圧入固着したシャー
プペンシルが開示されている。2. Description of the Related Art Conventionally, as a joint device between a lead tank such as a mechanical pencil and a chuck body, Japanese Utility Model Application Laid-Open No. 52-767 has been proposed.
No. 39 is known. According to this publication, after a cylindrical portion made of synthetic resin is press-fitted into a core housing tube, the core portion is fixed to the core housing tube by caulking the core housing tube from the outer periphery. There is disclosed a mechanical pencil into which a chuck having a flange formed at the rear is press-fitted. Further, Japanese Utility Model Laid-Open No. 52-23 discloses a mechanical pencil in which a chuck having a concave-convex fitting portion formed in the rear of a resin core case is press-fitted and fixed.
【０００３】[0003]
【考案が解決しようとする課題】しかしながら上記従来
技術の前者においては、継手部材である筒状部を芯収容
管の外周をカシメることにより固定しているので、その
作業（カシメ作業）が面倒であり生産性が悪かった。ま
た、後者においては、チャックを芯ケースに圧入するだ
けの簡単な作業ではあるものの、芯ケースが樹脂製であ
るため、ある程度の厚さを必要とし金属製の芯ケースに
比べ鉛芯の収容量が少ないものであった。However, in the former of the prior art, since the cylindrical portion as the joint member is fixed by caulking the outer periphery of the core housing tube, the work (caulking work) is troublesome. And productivity was poor. In the latter case, although it is a simple operation of simply pressing the chuck into the lead case, the lead case is made of resin, so a certain thickness is required, and the lead core capacity is smaller than that of a metal lead case. Was less.
【０００４】[0004]
【課題を解決するための手段】本考案は、上記問題点に
鑑みてなされたものであり、シャープペンシルの内部に
配置されている芯タンクと、鉛芯を把持し繰り出しを行
うチャック体との継手装置にあって、前記芯タンクを金
属材質より成形し、その芯タンクの先端を内側に折り曲
げ鍔部を形成すると共に、その鍔部に当接するよう前記
芯タンクの前方内側に、チャック体圧入孔が形成された
継手部材を配置する一方、前記チャック体の後方に係合
段部を形成し、前記継手部材のチャック体圧入孔にチャ
ック体の後部を圧入すると共に、前記チャック体の中間
部には前記芯タンクの鍔部の前面に当接する当接部を形
成することによって、前記鍔部を継手部材の前端部とチ
ャック体の当接部とで挾持せしめたことを要旨とするも
のである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and comprises a lead tank disposed inside a mechanical pencil and a chuck body for holding and feeding a lead lead. In the joint device, the core tank is formed of a metal material, and a tip of the core tank is bent inward to form a flange portion, and a chuck body is pressed into the front inside of the core tank so as to abut the flange portion. while placing the joint member hole is formed, both the engaging step portion formed in the rear of the chuck body, press-fitting the rear portion of the chuck body the chuck body press-fitting hole of the joint member, the intermediate of the chuck body
The part has a contact part that contacts the front of the collar of the core tank.
With this configuration, the flange is connected to the front end of the joint member.
The gist of the invention is that it is sandwiched between the abutting portions of the jack body .
【０００５】[0005]
【実施例】本願考案における１実施例を図１、図２に示
し、以下説明する。軸筒１の先端には、内部に芯戻り止
め部材２が配置された先部材３が螺着されている。ま
た、前記軸筒１の内側には、後端にノック部４を有する
芯タンク５が軸筒１に対して摺動自在に配置されてい
る。1 and 2 show an embodiment of the present invention, which will be described below. A tip member 3 in which a center detent member 2 is disposed is screwed to the tip of the barrel 1. A core tank 5 having a knocking portion 4 at a rear end is slidably disposed inside the barrel 1.
【０００６】また、芯タンク５の前端は内側に折り曲げ
られており、鍔部６が形成されている。さらに、芯タン
ク５の前方内側には鍔部６と当接して継手部材７が圧入
されており、その継手部材７の中心には後述するチャッ
ク体８の後部（圧入部）９が圧入されるチャック体圧入
孔１０が形成されている。また、前記継手部材７の圧入
孔１０の中間部には、係合凹部１１が円周状に形成され
ている。尚、係合凹部１１は、チャック体圧入孔１０か
らのチャック体８の抜けを極力防止するために形成した
ものであり、必ずしも必要ではない。つまり、単にチャ
ック体８をチャック体圧入孔１０に圧入しても良い。The front end of the core tank 5 is bent inward to form a flange 6. Further, a joint member 7 is press-fitted into the front inner side of the core tank 5 in contact with the flange portion 6, and a rear portion (press-fit portion) 9 of a chuck body 8 described later is press-fitted into the center of the joint member 7. A chuck body press-fitting hole 10 is formed. In the middle of the press-fitting hole 10 of the joint member 7, an engaging recess 11 is formed in a circumferential shape. The engagement recess 11 is formed to prevent the chuck body 8 from coming out of the chuck body press-fitting hole 10 as much as possible, and is not always necessary. That is, the chuck body 8 may simply be press-fitted into the chuck body press-fit hole 10.
【０００７】一方、チャック体８の中間部には、前記芯
タンク５の鍔部６前面と当接する外形が縮径された当接
部８ａが形成されている。また、チャック体８の後部
（圧入部）９には、矢型状の係合突部１２が形成されて
いて、前記継手部材７に形成されている係合凹部１１に
係合している。尚、後部（圧入部）９の外径は、前記チ
ャック体圧入孔１０の内径よりも若干大径に形成されて
いる。また、チャック体８は把持部が２つ割のもの、３
つ割のものなど種々公知のチャック体を使用することが
できる。On the other hand, the center of the chuck body 8
An abutment with a reduced outer diameter that abuts the front surface of the flange 6 of the tank 5
A portion 8a is formed. An arrow-shaped engaging projection 12 is formed in a rear portion (press-fitting portion) 9 of the chuck body 8, and is engaged with an engaging concave portion 11 formed in the joint member 7. The outer diameter of the rear portion (press-fitting portion) 9 is formed to be slightly larger than the inner diameter of the chuck body press-fitting hole 10. The chuck body 8 has a grip portion divided into two,
Various known chuck bodies such as a split one can be used.
【０００８】尚、参照符号１３はチャック体８を常に後
方に付勢する弾撥部材であり、中継部材１４と芯タンク
５との間に張設されている。また、参照符号１５はチャ
ック体８の開閉を行うチャックリングである。Reference numeral 13 denotes a repelling member that constantly urges the chuck body 8 rearward, and is stretched between the relay member 14 and the core tank 5. Reference numeral 15 denotes a chuck ring for opening and closing the chuck body 8.
【０００９】次に芯タンク５、継手部材７及びチャック
体８の組立方法について図３乃至図５を基に説明する。
あらかじめ芯タンク５の先端を内側に折り曲げ鍔部６を
形成しておき、継手部材７を芯タンク５の前方内面に鍔
部６に当接するまで圧入する（図３参照）。次いでガイ
ドピン（治具）１６を芯タンク５内に挿入し（図４参
照）、チャック体８の後部（圧入部）９を継手部材７の
チャック体圧入孔１０に挿入する（図５参照）。このと
き、前記チャック体８の当接部８ａが芯タンク５の鍔部
６前面に当接し、前記継手部材７とによって鍔部６は挾
み込まれる。尚、ガイドピン（治具）１６を使用するこ
とにより、芯タンク５とチャック体８との同軸度が向上
する。Next, a method of assembling the core tank 5, the joint member 7, and the chuck body 8 will be described with reference to FIGS.
The front end of the core tank 5 is bent inward to form the flange 6 in advance, and the joint member 7 is pressed into the front inner surface of the core tank 5 until it comes into contact with the flange 6 (see FIG. 3). Next, the guide pin (jig) 16 is inserted into the core tank 5 (see FIG. 4), and the rear part (press-fitting portion) 9 of the chuck body 8 is inserted into the chuck body press-fitting hole 10 of the joint member 7 (see FIG. 5). . This and
When the contact portion 8a of the chuck body 8 is
6, the flange 6 is sandwiched by the joint member 7.
It is impregnated. By using the guide pin (jig) 16, the coaxiality between the core tank 5 and the chuck body 8 is improved.
【００１０】[0010]
【考案の効果】本考案は、シャープペンシルの内部に配
置されている芯タンクと、鉛芯を把持し繰り出しを行う
チャック体との継手装置にあって、前記芯タンクを金属
材質より成形し、その芯タンクの先端を内側に折り曲げ
鍔部を形成すると共に、その鍔部に当接するよう前記芯
タンクの前方内側に、チャック体圧入孔が形成された継
手部材を配置する一方、前記チャック体の後方に係合段
部を形成し、前記継手部材のチャック体圧入孔にチャッ
ク体の後部を圧入すると共に、前記チャック体の中間部
には前記芯タンクの鍔部の前面に当接する当接部を形成
することによって、前記鍔部を継手部材の前端部とチャ
ック体の当接部とで挾持せしめたので、簡単な組立方法
により芯タンクとチャック体とを確実に連結させること
ができるため生産性が向上し、また、多くの鉛芯を芯タ
ンクに収容することができる。According to the present invention, there is provided a joint device for a lead tank disposed inside a mechanical pencil and a chuck body for gripping and feeding a lead lead, wherein the lead tank is formed from a metal material. While forming the flange part by bending the tip of the core tank inward, a joint member having a chuck body press-fitting hole is arranged inside the front side of the core tank so as to contact the flange part, both the engaging step portion formed in the rear, press-fitting the rear portion of the chuck body the chuck body press-fitting hole of the joint member, the intermediate portion of the chuck body
Has a contact portion that contacts the front surface of the collar of the core tank
By doing so, the flange portion and the front end of the joint member are chamfered.
Since the core tank and the chuck body are clamped by the contact part of the chuck body, the lead tank and the chuck body can be securely connected by a simple assembling method. Can be stored in the core tank.
【図１】本願考案の１実施例を示す縦半断面図である。FIG. 1 is a longitudinal half sectional view showing an embodiment of the present invention.
【図２】図１に相当する１部分を拡大した縦半断面図で
ある。FIG. 2 is an enlarged longitudinal half sectional view of a part corresponding to FIG.
【図３】本願考案の組立方法を示す要部縦断面図であ
る。FIG. 3 is a longitudinal sectional view of a main part showing an assembling method of the present invention.
【図４】本願考案の組立方法を示す要部縦断面図であ
る。FIG. 4 is a vertical sectional view of a main part showing an assembling method of the present invention.
【図５】本願考案の組立方法を示す要部縦断面図であ
る。FIG. 5 is a vertical sectional view of a main part showing an assembling method of the present invention.
１ 軸筒 ２ 芯戻り止め部材 ３ 先部材 ４ ノック部 ５ 芯タンク ６ 鍔部 ７ 継手部材 ８ チャック体８ａ 当接部 ９ 後部（圧入部） １０ チャック体圧入孔 １１ 係合凹部 １２ 係合段部（係合突部） １３ 弾撥部材 １４ 中継部材 １５ チャックリング １６ ガイドピン（治具）DESCRIPTION OF SYMBOLS 1 Shaft cylinder 2 Core detent member 3 Tip member 4 Knock part 5 Core tank 6 Flange part 7 Joint member 8 Chuck body 8a Contact part 9 Rear part (press fit part) 10 Chuck body press fit hole 11 Engagement concave part 12 Engagement step part (Engagement protrusion) 13 elastic member 14 relay member 15 chuck ring 16 guide pin (jig)
Claims (1)
る芯タンクと、鉛芯を把持し繰り出しを行うチャック体
との継手装置にあって、前記芯タンクを金属材質より成
形し、その芯タンクの先端を内側に折り曲げ鍔部を形成
すると共に、その鍔部に当接するよう前記芯タンクの前
方内側に、チャック体圧入孔が形成された継手部材を配
置する一方、前記チャック体の後方に係合段部を形成
し、前記継手部材のチャック体圧入孔にチャック体の後
部を圧入すると共に、前記チャック体の中間部には前記
芯タンクの鍔部の前面に当接する当接部を形成すること
によって、前記鍔部を継手部材の前端部とチャック体の
当接部とで挾持せしめたことを特徴とする芯タンクとチ
ャック体との継手装置。1. A joint device for a lead tank disposed inside a mechanical pencil and a chuck body for gripping and feeding out a lead lead, wherein the lead tank is formed from a metal material, and A joint member having a chuck body press-fitting hole is formed inside the front side of the core tank so as to abut the flange part by bending the tip inward, and is engaged behind the chuck body. stepped portion is formed, both the press-fitting the rear portion of the chuck body the chuck body press-fitting hole of the joint member, the an intermediate portion of the chuck body
Forming a contact part that contacts the front of the collar of the core tank
With this, the flange portion is connected to the front end portion of the joint member and the chuck body.
A joint device for a core tank and a chuck body , characterized in that the joint device is sandwiched between contact portions .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3679092U JP2585729Y2 (en) | 1992-04-30 | 1992-04-30 | Joint device for core tank and chuck body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3679092U JP2585729Y2 (en) | 1992-04-30 | 1992-04-30 | Joint device for core tank and chuck body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0586579U JPH0586579U (en) | 1993-11-22 |
| JP2585729Y2 true JP2585729Y2 (en) | 1998-11-25 |
Family
ID=12479588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3679092U Expired - Fee Related JP2585729Y2 (en) | 1992-04-30 | 1992-04-30 | Joint device for core tank and chuck body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2585729Y2 (en) |
-
1992
- 1992-04-30 JP JP3679092U patent/JP2585729Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0586579U (en) | 1993-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |