JP2525735Y2 - Swiveling mechanical pencil - Google Patents
Swiveling mechanical pencilInfo
- Publication number
- JP2525735Y2 JP2525735Y2 JP1873091U JP1873091U JP2525735Y2 JP 2525735 Y2 JP2525735 Y2 JP 2525735Y2 JP 1873091 U JP1873091 U JP 1873091U JP 1873091 U JP1873091 U JP 1873091U JP 2525735 Y2 JP2525735 Y2 JP 2525735Y2
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- eraser support
- support
- barrel
- mechanical pencil
- 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
【0001】[0001]
【産業上の利用分野】本考案は、軸筒を振ることにより
生じる重量体の慣性力によりチャックを前進させて芯を
繰り出す振出式シャープペンシルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing type mechanical pencil which advances a chuck by an inertial force of a weight body generated by shaking a shaft cylinder and extends a lead.
【0002】[0002]
【従来の技術】従来の振出式シャープペンシルにおいて
は、消しゴム使用時にチャックが前進して芯が繰り出さ
れてしまうのを防止するために、消しゴム支えを比較的
強い弾力のスプリングにより長手方向後方に付勢してい
た。2. Description of the Related Art In a conventional swing-out mechanical pencil, in order to prevent the chuck from advancing and the core being pulled out when an eraser is used, an eraser support is attached to the rear in the longitudinal direction by a spring having a relatively strong elasticity. I was rushing.
【0003】[0003]
【考案が解決しようとする課題】しかし、上記したもの
は部品点数が多くなり、尚かつスプリングを張架させて
組み立てるために非常に生産性が悪く高価格になってし
まうものであった。しかも次の芯をチャック内に追従さ
せるためのノック操作を行う時に前記した比較的強い弾
力のスプリングを圧縮しなければならず、ノックする手
が痛くなったり、消しゴムを押圧してノックするもの
は、消耗して短くなった消しゴムを消しゴム支えの後部
穴底面より浮かせて使用していた時、消しゴムが消しゴ
ム支え内に没入してしまうという課題が生じるものであ
った。本考案は、上記課題を解消した振出式シャープペ
ンシルを提供することを目的としたものである。However, the above-mentioned device has a large number of parts, and has a very low productivity and a high price because it is assembled by stretching a spring. Moreover, when performing a knocking operation for causing the next core to follow the inside of the chuck, the spring having a relatively strong elasticity described above must be compressed, and the knocking hand becomes painful, or the knocking by pressing the eraser is not possible. However, when the worn-out and shortened eraser is used by being floated from the bottom of the rear hole of the eraser support, there is a problem that the eraser enters the eraser support. An object of the present invention is to provide a draw-out mechanical pencil that solves the above-mentioned problems.
【0004】[0004]
【課題を解決するための手段】本考案は、軸筒の後部に
開口窓後縁あるいは内段を形成し、かつ消しゴム支えに
撓み可能に係止部を形成する。該消しゴム支えの係止部
を軸筒の開口窓後縁あるいは内段に衝止可能に係止し、
消しゴム支えを軸筒に適宜の距離摺動可能に取り付け
る。この消しゴム支えと重量体を当接可能に構成したも
のである。According to the present invention, a rear edge or an inner step of an opening window is formed at a rear portion of a barrel, and a locking portion is formed on an eraser support so as to be flexible. The locking portion of the eraser support is lockably locked to the rear edge or the inner step of the opening window of the barrel,
Attach the eraser support to the barrel so that it can slide for an appropriate distance. The eraser support and the weight body are configured to be able to abut.
【0005】[0005]
【実施例】図1及び図2は本考案の第1実施例を示すも
ので、軸筒1の前部に口金2が螺合され、該口金2内に
芯3を軽く保持する芯ホルダー4が内蔵されている。
又、口金2の内段2Aと軸筒1の前端1Aとの間にはワ
ッシャー5が挾持されている。該ワッシャー5と口金2
の係止段2Bとの間には締リング6が遊嵌され、該締リ
ング6を頭部7Aに外嵌するチャック7の後部にコネク
ター8が固着されている。しかもワッシャー5とコネク
ター8の前端外鍔8Aとの間には比較的弱い弾力のチャ
ックスプリング9が張架され、通常チャック7は締リン
グ6に押し付けられて閉じられ、芯3を保持している。
コネクター8には予備の芯3を収納する芯タンク10が
連結され、該芯タンク10の外側に重量体11が外嵌さ
れている。後部穴12Aに消しゴム13を設けた消しゴ
ム支え12の細径前部12Bにはコの字状に切り欠かれ
て撓み可能な弾性片12Cが形成され、該弾性片12C
には***した係止部12Dが形成されている。この消し
ゴム支え12の細径前部12Bが軸筒1の後端より挿入
され、軸筒1の後部に形成された開口窓1Bに消しゴム
支え12の係止部12Dが適宜の距離摺動可能に嵌め込
まれる。尚、軸筒1の開口窓1B後縁に消しゴム支え1
2の係止部12Dが衝止可能となっているので、軸筒1
より消しゴム支え12が外れる恐れはない。従って前記
重量体11はコネクター8の外鍔8Bと消しゴム支え1
2との間を摺動可能に構成される。又、芯タンク10の
後端と消しゴム支え12の内鍔12Eは当接可能に構成
されているが、通常は当接されていてもわずか離間して
いてもどちらでも良い。1 and 2 show a first embodiment of the present invention, wherein a base 2 is screwed into a front portion of a barrel 1 and a core holder 4 for lightly holding a core 3 in the base 2. FIG. Is built-in.
A washer 5 is clamped between the inner step 2A of the base 2 and the front end 1A of the barrel 1. The washer 5 and the base 2
A locking ring 6 is loosely fitted between the locking step 2B and a connector 8 which is fixed to a rear portion of a chuck 7 for externally fitting the locking ring 6 to a head 7A. Moreover, a chuck spring 9 having relatively low elasticity is stretched between the washer 5 and the outer flange 8A at the front end of the connector 8, and the chuck 7 is normally pressed against the tightening ring 6 and closed to hold the core 3. .
A lead tank 10 for accommodating the spare lead 3 is connected to the connector 8, and a weight body 11 is fitted on the outside of the lead tank 10. An elastic piece 12C, which is cut out in a U-shape and formed to be bent, is formed in a small-diameter front portion 12B of the eraser support 12 having an eraser 13 provided in a rear hole 12A.
Is formed with a raised locking portion 12D. The small-diameter front portion 12B of the eraser support 12 is inserted from the rear end of the barrel 1 so that the locking portion 12D of the eraser support 12 can be slid by an appropriate distance into an opening 1B formed at the rear of the barrel 1. It is fitted. An eraser support 1 is provided on the rear edge of the opening window 1B of the barrel 1
2 can be stopped, so that the shaft cylinder 1
There is no possibility that the eraser support 12 comes off. Therefore, the weight body 11 includes the outer flange 8B of the connector 8 and the eraser support 1.
2 is slidable. Further, the rear end of the core tank 10 and the inner flange 12E of the eraser support 12 are configured to be in contact with each other, but may be in contact with each other or may be slightly separated.
【0006】この第1実施例にて芯3を繰り出すために
は、軸筒1を振ることにより生じる慣性力で重量体11
を前進させ、重量体11をコネクター8の外鍔8Bに当
接させる。すると重量体11の慣性力によりチャックス
プリング9が圧縮されてチャック7が前進し、芯3が繰
り出される。この重量体11はコネクター8に当接され
た反作用で後方に移動し、消しゴム支え12の前端12
Fに当接されるが、消しゴム支え12の係止部12Dは
軸筒1の開口窓1B後縁に衝止されるために、消しゴム
支え12は軸筒1より外れることなく重量体11を受け
止める。そして消しゴム13を使用する場合には、消し
ゴム支え12の後部太径部12Gを手で保持して行うの
で、この時チャック7が前進して芯3が繰り出される恐
れはない。又、芯タンク10内に芯3を補充するには、
消しゴム13を外して消しゴム支え12の貫通孔12H
より芯3を挿入しても良いし、あるいは係止部12Dを
軸筒1の内方に押圧して軸筒1より消しゴム支え12を
外し芯タンク10の後端より芯3を挿入しても良い。そ
して1本の芯3が消耗して次の芯3を追従させるために
は、先ず消しゴム13を押圧すると、軸筒1の開口窓1
Bを消しゴム支え12の係止部12Dが前進し、消しゴ
ム支え12の内鍔12Eが芯タンク10の後端に当接さ
れる。すると消しゴム支え12とともに芯タンク10も
前進するので、従来の振出式シャープペンシルと同様に
芯3が追従される。In the first embodiment, in order to extend the lead 3, the weight body 11 is moved by the inertial force generated by shaking the barrel 1.
Is advanced, and the weight 11 is brought into contact with the outer flange 8B of the connector 8. Then, the chuck spring 9 is compressed by the inertial force of the weight body 11, the chuck 7 advances, and the core 3 is extended. The weight body 11 moves rearward due to the reaction abutting on the connector 8 and the front end 12 of the eraser support 12.
F, but because the locking portion 12D of the eraser support 12 is abutted against the rear edge of the opening window 1B of the barrel 1, the eraser support 12 receives the weight 11 without coming off the barrel 1. . When the eraser 13 is used, since the rear large diameter portion 12G of the eraser support 12 is held by hand, there is no possibility that the chuck 7 advances and the core 3 is extended at this time. Also, in order to refill the core 3 in the core tank 10,
Remove the eraser 13 and the through hole 12H of the eraser support 12
The core 3 may be inserted, or the locking portion 12D may be pressed inward of the barrel 1 to remove the eraser support 12 from the barrel 1 and insert the core 3 from the rear end of the core tank 10. good. Then, in order to cause one core 3 to be consumed and follow the next core 3, first, when the eraser 13 is pressed, the opening window 1 of the shaft cylinder 1 is pressed.
The locking portion 12D of the eraser support 12 moves forward, and the inner flange 12E of the eraser support 12 comes into contact with the rear end of the core tank 10. Then, the lead tank 10 moves forward together with the eraser support 12, so that the lead 3 is followed in the same manner as in the conventional swing-out mechanical pencil.
【0007】軸筒に消しゴム支えを取り付ける他の実施
例としては、図3・図4・図5及び図6に示した第2実
施例がある。これは軸筒101の後部に形成した開口窓
101Bを、太幅部101Cと太幅部101Cより後方
に位置する細幅部101Dとから形成し、該太幅部10
1Cと細幅部101Dを傾斜部101Eにより接続して
構成する。更に消しゴム支え112の弾性片112Cに
断面略山形の***部112Iと該***部112Iより後
方に伸びた細幅の係止部112Dを形成する。そして前
記軸筒101の開口窓101Bの太幅部101Cに消し
ゴム支え112の***部112Iを嵌め込むとともに、
開口窓101Bの細幅部101Dに消しゴム支え112
の係止部112Dを嵌め込み、かつ軸筒101に対して
消しゴム支え112が適宜の距離摺動可能とする。尚、
軸筒101の開口窓101B後縁に消しゴム支え112
の係止部112Dが衝止可能となっているので、軸筒1
01より消しゴム支え112が外れる恐れはない。従っ
て通常の状態では消しゴム支え112に回転方向に力が
加えられても係止部112Dが細幅部101Dに当接さ
れるために消しゴム支え112は回転しないが、チャッ
クスプリングにより後方に付勢されている芯タンク10
を押しながら消しゴム支え112を前進させ、係止部1
12Dを開口窓101Bの太幅部101Cに位置させて
図7の状態とし、この状態で消しゴム支え112に回転
方向の力を加えると、この場合には先ず山形の***部1
12Iの斜面が太幅部101Cの縁に当接される。する
と消しゴム支え112の弾性片112Cが内側に撓んで
係止部112Dが軸筒101内面より内側に変形され、
更に消しゴム支え112を回転させると***部112I
及び係止部112Dが軸筒101の開口窓101Bより
外れて軸筒101の内面にもぐり込む。この状態で消し
ゴム支え112を後方に引っ張れば消しゴム支え112
が容易に軸筒101より外すことが出来るものである。As another embodiment of attaching an eraser support to a shaft cylinder, there is a second embodiment shown in FIGS. 3, 4, 5 and 6. In this method, an opening window 101B formed at the rear of the barrel 101 is formed of a wide portion 101C and a narrow portion 101D located behind the wide portion 101C.
1C and the narrow width portion 101D are connected by an inclined portion 101E. Further, a protrusion 112I having a substantially mountain-shaped cross section and a narrow locking portion 112D extending rearward from the protrusion 112I are formed on the elastic piece 112C of the eraser support 112. Then, while fitting the raised portion 112I of the eraser support 112 into the wide portion 101C of the opening window 101B of the shaft cylinder 101,
An eraser support 112 is attached to the narrow portion 101D of the opening window 101B.
And the eraser support 112 can slide on the shaft cylinder 101 by an appropriate distance. still,
Eraser support 112 on the rear edge of opening window 101B of shaft cylinder 101
Of the shaft cylinder 1 can be stopped.
There is no risk that the eraser support 112 will come off from 01. Therefore, in the normal state, even if a force is applied to the eraser support 112 in the rotation direction, the eraser support 112 does not rotate because the locking portion 112D comes into contact with the narrow width portion 101D, but the eraser support 112 is urged backward by the chuck spring. Core tank 10
, While moving the eraser support 112 forward,
12D is positioned at the wide portion 101C of the opening window 101B, as shown in FIG. 7, and in this state, a force in the rotating direction is applied to the eraser support 112.
The slope of 12I is in contact with the edge of the wide portion 101C. Then, the elastic piece 112C of the eraser support 112 is bent inward, and the locking portion 112D is deformed inward from the inner surface of the shaft cylinder 101,
When the eraser support 112 is further rotated, the raised portion 112I
In addition, the locking portion 112D is disengaged from the opening window 101B of the barrel 101 and penetrates into the inner surface of the barrel 101. If the eraser support 112 is pulled backward in this state, the eraser support 112
Can be easily removed from the shaft cylinder 101.
【0008】又、図8及び図9の第3実施例のように、
消しゴム支え212の弾性片212Cに単に断面略山形
に***した係止部212Dを形成し、該係止部212D
を軸筒1の開口窓1Bに適宜の距離摺動可能に嵌め込ん
で構成しても良い。この場合には単に消しゴム支え21
2を回転させれば軸筒1より容易に外すことができるも
のである。Further, as in the third embodiment shown in FIGS. 8 and 9,
The elastic piece 212C of the eraser support 212 is formed with a locking portion 212D simply raised in a substantially mountain shape in cross section, and the locking portion 212D is formed.
May be slidably fitted into the opening window 1B of the shaft cylinder 1 for an appropriate distance. In this case, simply use the eraser support 21
By rotating the shaft 2, the shaft tube 1 can be easily removed.
【0009】この第2実施例及び第3実施例の場合に
は、軸筒より消しゴム支えが簡単に外せるので、芯タン
クへの芯の補充が容易に行えるものである。In the case of the second and third embodiments, since the eraser support can be easily removed from the shaft cylinder, it is possible to easily refill the lead tank to the lead tank.
【0010】更に軸筒に消しゴム支えを取り付ける構成
としては、図10に示した第4実施例がある。これは軸
筒201の後部に内段201Fを形成し、かつ消しゴム
支え312の前部に外鍔状の係止部312Dを形成し、
該係止部312Dを長手方向に伸びた切溝により数分割
して弾性を持たせる。この消しゴム支え312の係止部
312Dを軸筒201の後端より挿入して内段201F
を乗り越えさせ、係止部312Dと内段201Fが衝止
可能とし、軸筒201に消しゴム支え312を適宜の距
離摺動可能に取り付ける。この場合には消しゴム支え3
12は取り外せないので、消しゴム13を外して消しゴ
ム支え312の貫通孔312Hより芯3を補充する。Further, as a construction for attaching an eraser support to the shaft cylinder, there is a fourth embodiment shown in FIG. This forms the inner step 201F at the rear part of the shaft cylinder 201, and forms the outer flange-shaped locking part 312D at the front part of the eraser support 312,
The locking portion 312D is divided into several parts by a cut groove extending in the longitudinal direction to give elasticity. The locking portion 312D of the eraser support 312 is inserted from the rear end of the shaft cylinder 201 to insert the inner step 201F.
, The locking portion 312D and the inner step 201F can be impacted, and the eraser support 312 is attached to the shaft cylinder 201 so as to be slidable by an appropriate distance. In this case, eraser support 3
12 cannot be removed, the eraser 13 is removed, and the core 3 is replenished from the through hole 312H of the eraser support 312.
【0011】又、図11に示した第5実施例のように、
消しゴム支え412にノブ14を被せて消しゴム13を
覆うように構成してもよい。Also, as in the fifth embodiment shown in FIG.
The eraser support 412 may be configured to cover the eraser 13 by covering the knob 14.
【0012】本考案における振出式シャープペンシルの
機構部は、上記実施例のものに限定されるものではな
く、例えば図12に示した第6実施例のように、ワッシ
ャー部301Gを軸筒301の前部に一体成形して構成
したものでもよい。The mechanical part of the swing-out mechanical pencil according to the present invention is not limited to that of the above-described embodiment. For example, as in the sixth embodiment shown in FIG. It may be formed integrally with the front part.
【0013】しかも、上記した実施例はいずれも軸筒の
前端内面によりコネクターの前端外鍔をセンタリングし
て芯タンク及びチャックの偏りを防いでいるが、図13
及び図14に示した第7実施例のように、軸筒401の
前部にリブ部401Hを形成し、該リブ部401Hによ
りコネクター8の前端外鍔8Aをセンタリングしてもよ
い。Further, in each of the above-mentioned embodiments, the front outer flange of the connector is centered by the inner surface of the front end of the shaft cylinder to prevent the center tank and the chuck from being biased.
As in the seventh embodiment shown in FIG. 14, a rib 401H may be formed at the front of the barrel 401, and the front flange 8A of the connector 8 may be centered by the rib 401H.
【0014】[0014]
【考案の効果】以上説明した本考案の振出式シャープペ
ンシルは、部品点数が少なくしかも極めて簡単に生産で
きるために、従来のものと比較して低価格で提供できる
ものである。しかも、次の芯を追従させるためのノック
操作もわずかなノック力で行うことができるので、非常
に操作しやすいものである。The drawing mechanical pencil of the present invention described above has a small number of parts and can be produced very easily, so that it can be provided at a lower price than conventional ones. In addition, since the knock operation for following the next lead can be performed with a slight knock force, the operation is very easy.
【図1】本考案の第1実施例を示す断面図である。FIG. 1 is a sectional view showing a first embodiment of the present invention.
【図2】本考案の第1実施例の消しゴム支えを示す平面
図である。FIG. 2 is a plan view showing the eraser support of the first embodiment of the present invention.
【図3】本考案の第2実施例を示す主要部断面図であ
る。FIG. 3 is a sectional view showing a main part of a second embodiment of the present invention.
【図4】図3の平面図である。FIG. 4 is a plan view of FIG. 3;
【図5】図3におけるA−A線を示す断面図である。FIG. 5 is a sectional view taken along line AA in FIG. 3;
【図6】図3におけるB−B線を示す断面図である。FIG. 6 is a sectional view taken along line BB in FIG. 3;
【図7】第2実施例における消しゴム支えを前進させた
状態を示す主要部平面図である。FIG. 7 is a main part plan view showing a state where an eraser support in the second embodiment is advanced.
【図8】本考案における第3実施例を示す主要部断面図
である。FIG. 8 is a sectional view of a main part showing a third embodiment of the present invention.
【図9】図8の平面図である。FIG. 9 is a plan view of FIG.
【図10】本考案における第4実施例を示す断面図であ
る。FIG. 10 is a sectional view showing a fourth embodiment of the present invention.
【図11】本考案における第5実施例を示す主要部断面
図である。FIG. 11 is a sectional view showing a main part of a fifth embodiment of the present invention.
【図12】本考案における第6実施例を示す断面図であ
る。FIG. 12 is a sectional view showing a sixth embodiment of the present invention.
【図13】本考案における第7実施例を示す断面図であ
る。FIG. 13 is a sectional view showing a seventh embodiment of the present invention.
【図14】図13のA−A線を示す断面図である。FIG. 14 is a sectional view taken along line AA of FIG. 13;
1・101・201・301・401 軸筒 1B・101B 軸筒1・101の開口窓 201F 軸筒201の内段 3 芯 7 チャック 11 重量体 12・112・212・312・412 消しゴム支え 12D・112D・212D・312D 消しゴム支え
12・112・212・312の係止部 13 消しゴム1. 101/201/301/401 Shaft tube 1B / 101B Opening window of shaft tube 1/101 201F Inner stage of shaft tube 201 3 core 7 Chuck 11 Weight body 12/112/212/312/412 Eraser support 12D / 112D・ 212D ・ 312D Eraser Supports 12 ・ 112 ・ 212 ・ 312 Locking Part 13 Eraser
Claims (1)
性力によりチャックを前進させて芯を繰り出す振出式シ
ャープペンシルにおいて、消しゴムを設けた消しゴム支
えに撓み可能に係止部を形成し、該係止部を軸筒の開口
窓縁あるいは内段に衝止可能に係止して消しゴム支えを
軸筒に適宜摺動可能に取り付け、該消しゴム支えに重量
体を当接可能に構成したことを特徴とする振出式シャー
プペンシル。1. A swing-out mechanical pencil, in which a chuck is advanced by an inertial force of a weight body generated by shaking a shaft cylinder to feed out a lead, an eraser support provided with an eraser is formed with a flexibly engaging portion. The locking part is locked to the opening window edge or the inner step of the barrel so as to be able to stop against it, and the eraser support is slidably attached to the barrel, so that the weight body can contact the eraser support. A draw-out mechanical pencil that is a feature.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1873091U JP2525735Y2 (en) | 1991-03-04 | 1991-03-04 | Swiveling mechanical pencil |
PCT/JP1992/000255 WO1992015462A1 (en) | 1991-03-04 | 1992-03-04 | Shaking type mechanical pencil |
US07/946,292 US5354141A (en) | 1991-03-04 | 1992-03-04 | Mechanical pencil with shaking type lead-feeding mechanism |
GB9222920A GB2260104B (en) | 1991-03-04 | 1992-03-04 | Mechanical pencil with shaking type lead-feeding mechanism |
HK149695A HK149695A (en) | 1991-03-04 | 1995-09-21 | Mechanical pencil with shaking type lead-feeding mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1873091U JP2525735Y2 (en) | 1991-03-04 | 1991-03-04 | Swiveling mechanical pencil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04109188U JPH04109188U (en) | 1992-09-21 |
JP2525735Y2 true JP2525735Y2 (en) | 1997-02-12 |
Family
ID=31905181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1873091U Expired - Lifetime JP2525735Y2 (en) | 1991-03-04 | 1991-03-04 | Swiveling mechanical pencil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2525735Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011088289A (en) * | 2009-10-20 | 2011-05-06 | Pilot Corporation | Shaking-out type mechanical pencil |
-
1991
- 1991-03-04 JP JP1873091U patent/JP2525735Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011088289A (en) * | 2009-10-20 | 2011-05-06 | Pilot Corporation | Shaking-out type mechanical pencil |
Also Published As
Publication number | Publication date |
---|---|
JPH04109188U (en) | 1992-09-21 |
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