JPS644542Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は先端ノツク式シヤープペンシルのス
ライダー係止動作を円滑に行なえるようにした考
案に関する。[Detailed Description of the Invention] This invention relates to an invention that enables smooth locking of the slider of a sharpener pencil with a tip.

芯戻り止め部材を装着したスライダーの前後動
によつて不測の芯出を生ずるおそれがある先端ノ
ツク式シヤープペンシルでは、携帯時にはスライ
ダーを動けないように係止し、使用時にはその係
止状態を解くようにすることが望ましい。本出願
人は、この為、先端ノツクによる芯出し操作時の
スライダー位置よりも更に奥深い位置でスライダ
ーを係止させ、芯はスライダーの芯戻り止め部材
により保持されることで抜け落ちないようにした
構造について既に特許出願した。その概要を第４
図と第５図を使つて始めに述べ、同時にこの考案
の技術的課題について説明する。 For tip-knot type sharp pencils, where there is a risk of unexpected centering due to the back-and-forth movement of the slider equipped with a core detent member, the slider must be locked so that it cannot move when carried, and the lock must be released when in use. It is desirable to do so. For this reason, the present applicant has developed a structure in which the slider is locked at a deeper position than the slider position during centering operation using the tip notch, and the lead is held by the slider's core detent member to prevent it from falling out. A patent application has already been filed for this. The summary is in the 4th section.
We will first describe this using Figures and Figure 5, and at the same time explain the technical issues of this invention.

軸筒１先端の小孔から突出する芯管３と、内側
に芯戻り止め部材４を設け、また前方外面にＯリ
ング５を止着したスライダー２は、軸筒１との間
に設けた鍔付き管体６の内側に配設され、かつ鍔
付き管体６との間に張設した戻しバネ１１で前方
に向けて付勢される。したがつて携帯時、戻しバ
ネ１１の力に抗してスライダー２を奥深い押込み
位置に係止できるのは、スライダー２のＯリング
５を鍔付き管体６内に押込むことで呈するＯリン
グ５の摩擦係止力によつている。 The slider 2 has a core tube 3 protruding from a small hole at the tip of the shaft tube 1, a core detent member 4 on the inside, and an O-ring 5 fixed to the front outer surface of the slider 2. It is biased forward by a return spring 11 disposed inside the flanged tube body 6 and stretched between the flanged tube body 6 and the flanged tube body 6. Therefore, when carrying, the slider 2 can be locked in the deep pushed-in position against the force of the return spring 11 by pushing the O-ring 5 of the slider 2 into the flanged tube 6. It depends on the frictional locking force of

鍔付き管体６は、その鍔７と軸筒内側段部１ａ
との間に張設した押バネ８で後方に向けて付勢さ
れ、しかも鍔７後面は軸筒１内側に固着した止環
９との間に介装した一部だけ二重に重なり合う巻
バネである支点構成部材１０により受け止め、こ
うして常時傾こうとする付勢力を与える。そして
この付勢力を殺して該管体６を真直ぐな姿勢を保
たせるため、該管体６の後面と当る規制面１２ａ
をもつた押圧部材１２、その押圧部材１２の後面
と当る筒体１３、およびその筒体１３の後方から
押す圧縮バネ１４をそれぞれ配設する。いま若し
規制面１２ａが後退して管体６後面から離れるや
否や、鍔付き管体６は直ちに傾いて内側にあるス
ライダー２に対し摩擦係止力を発現する。かかる
摩擦係止力の発現を、先端ノツク時、すなわち芯
戻り止め部材４で芯を保持しているスライダー２
と、その芯を挟持しているチヤツク機構１５とが
一緒に後退するときの、チヤツク機構１５後退と
協働して行なわれるようにすると、先端ノツクに
よる芯出しが可能である。このためチヤツク機構
１５がチヤツク作動体１５ａ、チヤツク体１５
ｂ、ボール１５ｃ、およびチヤツクバネ１５ｄか
らなる公知のボールチヤツクであるときには、チ
ヤツク作動体１５ａを押圧部材１２の内側に配設
して後退方向には両者一緒に動くように係合段部
１６を形成した嵌合構造とする。 The flanged tube body 6 has a flanged body 7 and a shaft cylinder inner step portion 1a.
The rear surface of the flange 7 is biased rearward by a push spring 8 stretched between the collar 7 and the retaining ring 9 fixed to the inside of the shaft cylinder 1. It is received by the fulcrum constituent member 10, which is the fulcrum member 10, and thus provides an urging force that constantly tends to tilt. In order to eliminate this biasing force and keep the tubular body 6 in a straight posture, a regulating surface 12a that comes into contact with the rear surface of the tubular body 6 is
A pressing member 12 having a diameter, a cylindrical body 13 that contacts the rear surface of the pressing member 12, and a compression spring 14 that presses from the rear of the cylindrical body 13 are provided. As soon as the regulating surface 12a moves back and leaves the rear surface of the tube 6, the flanged tube 6 immediately tilts and exerts a frictional locking force on the slider 2 located inside. This frictional locking force is generated when the tip is notched, that is, when the slider 2 holds the core with the core detent member 4.
If this is done in cooperation with the retraction of the chuck mechanism 15 when the chuck mechanism 15 holding the lead is retracted together, centering can be performed using the tip notch. Therefore, the chuck mechanism 15 is connected to the chuck actuating body 15a and the chuck body 15.
When the chuck is a known ball chuck consisting of a ball 15c, and a chuck spring 15d, the chuck actuating body 15a is disposed inside the pressing member 12, and an engaging stepped portion 16 is formed so that both move together in the backward direction. It has a mating structure.

ところで先端ノツク操作ではチヤツク機構１５
のチヤツク部を開かすことも芯戻り止め部材４に
新芯を芯タンク１７側から通すこともできないか
ら、これを可能とするために、所謂後端ノツク式
等の公知の機構を併用する必要があり、この為、
芯タンク１７の先端に鍔付き押環１８を取付け、
その鍔１９と筒体１３の前方内端面との間に張設
したバネ２０で鍔１９後面を筒体１３後部の係止
部１３ａに押しつけ、こうして押環１８の先端部
分１８ａをチヤツク体１５ｂ後端と対峙する関係
にあらしめる一方、押環１８にはチヤツク作動体
１５ａの後方部分に対してやや固く嵌まる摩擦摺
動管２１を止着し、この摩擦摺動嵌合構造により
芯挟持状態にあるチヤツク機構１５全体の前進す
なわち一定長の芯出し、チヤツク作動体１５ａの
前端の端面部材２２が押圧部材１２の規制面１２
ａのうしろに突き当つたのちチヤツク体１５ｂだ
けの前進すなわちチヤツク部の拡開、およびバネ
２０、チヤツクバネ１５ｄによつてチヤツク作動
体１５ａとチヤツク体１５ｂとが始めの位置に戻
り芯を挟持する一連の芯出動作を可能とする。チ
ヤツク作動体１５ａの端面部材２２にチヤツク体
１５ｂの先端が乗り上げて係止する係止部２３を
形成しておくと、チヤツク部の拡開状態を保ち続
けることができる。 By the way, when operating the tip knob, the chuck mechanism 15
Since it is not possible to open the chuck part or pass a new lead through the lead detent member 4 from the lead tank 17 side, in order to make this possible, it is necessary to use a known mechanism such as a so-called rear end lock type. There is, and for this reason,
Attach the flanged push ring 18 to the tip of the core tank 17,
A spring 20 stretched between the flange 19 and the front inner end surface of the cylindrical body 13 presses the rear surface of the flange 19 against the locking part 13a at the rear of the cylindrical body 13, thereby pushing the tip end 18a of the push ring 18 behind the chuck body 15b. On the other hand, a friction sliding tube 21 is fixed to the push ring 18 so as to be opposed to the end thereof, and a friction sliding tube 21 is fixedly fitted to the rear portion of the chuck actuating body 15a, and this friction sliding fitting structure allows the core to be held in the sandwiched state. In other words, when the entire chuck mechanism 15 is moved forward, i.e., centered over a certain length, the end face member 22 at the front end of the chuck actuating body 15a is aligned with the regulating surface 12 of the pressing member 12.
After hitting the back of the chuck a, only the chuck body 15b moves forward, that is, the chuck portion expands, and the chuck actuating body 15a and the chuck body 15b return to their initial positions by the spring 20 and the chuck spring 15d to sandwich the core. Enables a series of centering operations. If a locking portion 23 is formed on the end face member 22 of the chuck actuating body 15a so that the tip of the chuck body 15b rides on and locks therein, the chuck portion can be maintained in an expanded state.

さて、シヤープペンシルを携帯するに当り、後
端ノツクにより一杯に押しチヤツク部を拡開した
状態の下で、芯管３を紙面等に押し当てて軸筒１
内に押し込み（第５図参照）、しかるのち芯管３
を紙面に押し当てて軸筒１内に押し込んだ状態を
維持しつつ後端ノツクを解放し、その後芯管３を
紙面から離し、携帯時の状態とするのであるが、
スライダー２、端面部材２２、チヤツク体１５
ｂ、押環１８、芯タンク１７のそれぞれは直接接
触により連続するため、芯タンク１７の後方を押
す指先には押し戻し力が直接かかることになる。
使用者は指先の力を抜きながらスライダー２の押
し込みに比例してうまく後退させねばならない。
この操作は可成りデリケートで、うまく行かない
場合も屡々あり、不便があつたのである。 Now, when carrying the sharp pencil, press the rear end notch fully and expand the chuck part, press the core tube 3 against the surface of the paper, etc., and press the barrel 1.
(see Figure 5), then insert the core tube 3.
While pressing the core tube 3 against the surface of the paper and keeping it pushed into the barrel 1, release the rear end notch, and then release the core tube 3 from the surface of the paper to set it to the state when carrying.
Slider 2, end member 22, chuck body 15
b. Since the push ring 18 and the core tank 17 are connected to each other by direct contact, a push-back force is directly applied to the fingertip that presses the rear of the core tank 17.
The user must properly retreat the slider 2 in proportion to the push-in while relaxing the force of the fingertips.
This operation was quite delicate and often did not go well, causing inconvenience.

この考案は上記した問題を解消することを目的
としてなされたものであるが、その構成は第１図
および第３図に示すように、チヤツク作動体１５
ａとは摩擦摺動嵌合構造で連結した押環１８をバ
ネ２０により後方に向けて付勢し、その押環１８
の押し進めで該チヤツク作動体１５ａとの間にチ
ヤツクバネ１５ｄを介装したチヤツク体１５ｂを
拡開可能となし、また戻しバネ１１により前方に
向けて付勢され且つ軸筒１内に押込めるスライダ
ー２はその押込時の後端面でチヤツク作動体１５
ａの先端に設けた端面部材２２を押圧する位置で
係止可能としたシヤープペンシルにおいて、該押
環１８は固定押環部分１８Ａと、その固定押環部
分１８Ａの後端面に係止することができる可動押
環部分１８Ｂとの間に弾撥バネ１８Ｃを介装した
構造としてなるものである。つまり、前述の第
４，５図の押環１８構造は一体構成とされていた
のに対して、この考案では押すときには恰も一体
構成と同様に働き、強い力で押されるときには弾
撥バネ１８Ｃの働きで可動押環部分１８Ｂが動け
るようにしたのである。固定押環部分１８Ａには
鍔１９が形成され摩擦摺動管２１が止着されるこ
と、また可動押環部分１８Ｂはチヤツク体１５ｂ
の後端と対峙して配設され、これを押圧すること
が可能であること、いう迄もない。 This invention was made with the aim of solving the above-mentioned problems, and its configuration is as shown in FIGS.
A means that the push ring 18 connected by a friction sliding fitting structure is urged rearward by a spring 20, and the push ring 18 is
When pushed forward, the chuck body 15b with a chuck spring 15d interposed between it and the chuck actuating body 15a can be expanded, and the slider 2 is urged forward by the return spring 11 and can be pushed into the shaft cylinder 1. is the rear end surface of the chuck actuating body 15 when pushed in.
In a sharpening pencil that can be locked at the position where the end face member 22 provided at the tip of a is pressed, the pressing ring 18 can be locked to the fixed pressing ring portion 18A and the rear end surface of the fixed pressing ring portion 18A. It has a structure in which an elastic spring 18C is interposed between the movable press ring portion 18B and the movable press ring portion 18B. In other words, whereas the structure of the push ring 18 shown in FIGS. 4 and 5 described above was an integral structure, in this invention, when pushing, it works just like an integral structure, and when pushed with a strong force, the elastic spring 18C This allows the movable push ring portion 18B to move. A collar 19 is formed on the fixed press ring portion 18A to which the friction sliding tube 21 is fixed, and the movable press ring portion 18B is provided with a chuck body 15b.
Needless to say, it is arranged opposite to the rear end of the body and can be pressed against it.

この弾撥バネ１８Ｃはチヤツクバネ１５ｄより
も強くすることで後端ノツク時に可動押環部分１
８Ｂによてチヤツク体１５ｂを後方から押し進め
拡開状態に至らしめることが可能である。しかし
弾撥バネ１８ＣがＯリング５による摩擦係止力よ
りも強いものであるとスライダー２の係止は不可
能となるので、そのようなことがないように適当
なバネの強さとすることが必要である。よつて本
考案によれば後端ノツクによりチヤツク体１５ｂ
を拡開すると共に芯管３を紙面等に押し当て（第
２図参照）、その後、芯管３を紙面から離してや
れば容易に携帯時の状態（第３図参照）とするこ
とができる。 By making this elastic spring 18C stronger than the chuck spring 15d, the movable push ring portion 1
8B, it is possible to push the chuck body 15b forward from the rear and bring it into the expanded state. However, if the elastic spring 18C is stronger than the frictional locking force of the O-ring 5, it will be impossible to lock the slider 2, so to avoid this, it is necessary to set the spring strength appropriately. is necessary. Therefore, according to the present invention, the chuck body 15b is
The device can be easily brought into the portable state (see FIG. 3) by expanding the core tube 3 and pressing it against the surface of the paper (see FIG. 2), and then separating the core tube 3 from the surface of the paper (see FIG. 3).

以上の説明から明らかなように、チヤツク部拡
開状態下でスライダー２を軸筒１内に奥深く押し
込むとき、スライダー２の後端面と当るチヤツク
作動体１５ａの端面部材２２はチヤツク体１５ｂ
を介し可動押環部分１８Ｂを後方に押すけれど
も、介装した弾撥バネ１８Ｃの圧縮によつて直接
芯タンク１７側を後退させるようなことはない。
またチヤツク作動体１５ａの後退は摩擦摺動嵌合
構造を構成する摩擦摺動管２１の働きで、これま
た直接芯タンク１７側を後退させるようなことは
ない。したがつて芯タンク１７の後方を押す指先
にはスライダー２の押し込みに伴う押し戻され力
がかかるといつたことがないから、指先の力はそ
のままでスライダー２を押し込みさえすればよ
く、その操作は誰でもが間違いなく正確確実に行
なえる点で甚だ優れている。 As is clear from the above explanation, when the slider 2 is pushed deep into the shaft cylinder 1 with the chuck expanded, the end face member 22 of the chuck actuating body 15a that comes into contact with the rear end surface of the slider 2 is pushed into the chuck body 15b.
Although the movable push ring portion 18B is pushed rearward through the movable push ring portion 18B, the core tank 17 side is not directly pushed back due to the compression of the interposed elastic spring 18C.
Further, the retraction of the chuck actuating body 15a is due to the action of the friction sliding pipe 21 constituting the friction sliding fitting structure, so that the wick tank 17 side is not directly retracted. Therefore, since it has never been said that the fingertip pushing the rear of the wick tank 17 is pushed back as the slider 2 is pushed in, it is only necessary to push the slider 2 while keeping the force of the fingertip, and the operation is simple. It is extremely superior in that anyone can perform it accurately and reliably.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第３図はこの考案になるスライダー
係止装置を備えた先端ノツクシヤープペンシルの
筆記時、押込み動作時、携帯時のそれぞれの状態
を示す断面図、第４図と第５図はこの考案によら
ない場合の第１図と第２図に相当する断面図であ
る。 １……軸筒、２……スライダー、１１……戻し
バネ、１５ａ……チヤツク作動体、１５ｂ……チ
ヤツク体、１５ｄ……チヤツクバネ、１８……押
環、１８Ａ……固定押環部分、１８Ｂ……可動押
環部分、１８Ｃ……弾撥バネ、２０……バネ、２
２……端面部材。 Figures 1 to 3 are cross-sectional views showing the state of the pencil with a notch at the tip equipped with the slider locking device of this invention during writing, pushing operation, and carrying, respectively, and Figures 4 and 5 are FIG. 2 is a sectional view corresponding to FIGS. 1 and 2 in a case not based on this invention. 1... Shaft tube, 2... Slider, 11... Return spring, 15a... Chuck operating body, 15b... Chuck body, 15d... Chuck spring, 18... Push ring, 18A... Fixed push ring portion, 18B ...Movable push ring part, 18C...Elastic spring, 20...Spring, 2
2... End member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] チヤツク作動体１５ａとは摩擦摺動嵌合構造で
連結した押環１８をバネ２０により後方に向けて
付勢し、その押環１８の押し進めで該チヤツク作
動体１５ａとの間にチヤツクバネ１５ｄを介装し
たチヤツク体１５ｂを拡開可能となし、また戻し
バネ１１により前方に向けて付勢され且つ軸筒１
内に押込めるスライダー２はその押込時の後端面
でチヤツク作動体１５ａ先端に設けた端面部材２
２を押圧する位置で係止可能としたシヤープペン
シルにおいて、該押環１８は固定押環部分１８Ａ
と、その固定押環部分１８Ａの後端面に係止する
ことができる可動押環部分１８Ｂとの間に弾撥バ
ネ１８Ｃを介装した構造としてなる先端ノツク式
シヤープペンシルのスライダー係止装置。 A push ring 18 connected to the chuck actuating body 15a by a friction sliding fitting structure is biased rearward by a spring 20, and as the push ring 18 is pushed forward, a chuck spring 15d is interposed between the chuck actuating body 15a and the chuck actuating body 15a. The mounted chuck body 15b is made expandable, and is urged forward by the return spring 11, and the shaft cylinder 1
The slider 2 that can be pushed in has an end face member 2 provided at the tip of the chuck actuating body 15a at its rear end face when pushed in.
2, the push ring 18 is fixed at the fixed push ring portion 18A.
and a movable press ring part 18B which can be locked to the rear end surface of the fixed press ring part 18A, and an elastic spring 18C is interposed therebetween.