JP5121175B2 - mechanical pencil - Google Patents

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Publication number
JP5121175B2
JP5121175B2 JP2006194992A JP2006194992A JP5121175B2 JP 5121175 B2 JP5121175 B2 JP 5121175B2 JP 2006194992 A JP2006194992 A JP 2006194992A JP 2006194992 A JP2006194992 A JP 2006194992A JP 5121175 B2 JP5121175 B2 JP 5121175B2
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clip
fixing member
mechanical pencil
shaft tube
shaft
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Expired - Fee Related
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JP2008023712A (en
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幹夫 小島
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Pilot Corp KK
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Pilot Corp KK
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Description

本発明は、軸筒に対して回転自在に取り付けられるシャープペンシルに関するものである。 The present invention relates to a mechanical pencil that is rotatably attached to a shaft cylinder.

従来、シャープペンシルにおいては、傾けて筆記を行うと芯の先端が傾斜して摩耗するので徐々に筆跡の幅が広がってしまうものであった。したがって、筆記者は筆跡の幅が広がるとシャープペンシルを回転して尖ったエッジで筆記を行っていた。しかし、シャープペンシルを回転して筆記を行うと、クリップが手に当たって筆記しにくい状態が生じていた。この点を解消する手段として、クリップを回転自在に取り付け、このクリップの先端の玉部を軸筒の環状溝に嵌合状態にて係合した筆記具が知られている。（特許文献１参照）
実開昭５５−７０２９２号公報 Conventionally, in a mechanical pencil, when writing is performed at an angle, the tip of the core is inclined and wears, so that the width of the handwriting gradually increases. Therefore, the writer turned the mechanical pencil and wrote with a sharp edge when the width of the handwriting was widened. However, when writing by rotating the mechanical pencil, the clip hits the hand and it was difficult to write. As means for solving this problem, there is known a writing instrument in which a clip is rotatably attached and a ball portion at the tip of the clip is engaged with an annular groove of a shaft cylinder in a fitted state. (See Patent Document 1)
Japanese Utility Model Publication No. 55-70292

しかしながら、上記した筆記具は服のポケット等に筆記具のクリップを挟む時に、非常に挟みにくいものであった。
本発明は、上記課題を解消するシャープペンシルを提供することを目的とするものである。 However, the above-mentioned writing instrument is very difficult to pinch when the clip of the writing instrument is sandwiched in a pocket of clothes.
An object of this invention is to provide the mechanical pencil which eliminates the said subject.

本発明は、軸筒の後部に固定部材を回動自在に取り付け、この固定部材の隆起部にクリップの支点部を枢着し、かつ、バネによりクリップの前部を内側に付勢し、クリップの前部に形成した受部と軸筒の表面がわずかに離間するとともに、クリップの後部を押操作することによりクリップの前部を持ち上げ、クリップの受部が軸筒の表面より大きく離間することを第１の要旨とする。 According to the present invention , a fixing member is rotatably attached to the rear portion of the shaft tube, a fulcrum portion of the clip is pivotally attached to the raised portion of the fixing member, and the front portion of the clip is urged inward by a spring. The receiving part formed on the front part of the tube and the surface of the shaft cylinder are slightly separated from each other, and the front part of the clip is lifted by pushing the rear part of the clip so that the receiving part of the clip is separated largely from the surface of the shaft cylinder. Is the first gist.

また、軸筒の後部を細径部とし、この細径部に固定部材を回動自在に取り付け、更に軸筒の後端に頭冠を取り付け、軸筒の外段と頭冠の間にクリップの固定部材を遊嵌することにより、固定部材を軸筒に対して回動自在に取り付けたことを第２の要旨とする。   Also, the rear part of the shaft cylinder is made into a small diameter part, a fixing member is rotatably attached to this small diameter part, and a head crown is attached to the rear end of the shaft cylinder, and a clip is placed between the outer stage of the shaft cylinder and the head crown. The second gist is that the fixing member is rotatably attached to the shaft tube by loosely fitting the fixing member.

更に、軸筒の後部内面に円周状の凹溝を形成するとともに、固定部材の前部を細径に形成し、かつ、この細径部に突部を形成し、固定部材の細径部を軸筒の後部に挿入して突部を軸筒の凹溝に遊嵌させることにより、固定部材を軸筒に対して回動自在に取り付けたことを第３の要旨とする。   Further, a circumferential concave groove is formed on the inner surface of the rear part of the shaft cylinder, the front part of the fixing member is formed with a small diameter, and a protrusion is formed on the small diameter part. The third gist is that the fixing member is rotatably attached to the shaft tube by inserting the projection into the rear portion of the shaft tube and loosely fitting the protrusion into the groove of the shaft tube.

本発明は、シャープペンシルの軸筒に対してクリップが回動するので、シャープペンシルを回して筆記してもクリップが邪魔にならない効果が得られる。しかも、服のポケット等をクリップが挟む場合には、クリップの先端を持ち上げてクリップの受部と軸筒との間にポケットの服地を差し込むので、容易にクリップで挟持することができる効果が奏せられるものである。   In the present invention, since the clip rotates with respect to the shaft cylinder of the mechanical pencil, an effect that the clip does not get in the way even when the mechanical pencil is turned and written is obtained. In addition, when a clip is sandwiched between a pocket of clothes and the like, the tip of the clip is lifted and the clothes of the pocket are inserted between the receiving part of the clip and the shaft tube, so that the clip can be easily clamped. It is what

通常は、クリップの受部が軸筒よりわずかに離間しているので、クリップが確実に回転することができる。また、クリップで服のポケット等を挟む場合には、クリップの先端が持ち上げられるので、容易に挟むことができるシャープペンシルを実現した。 Usually, since the receiving part of the clip is slightly separated from the shaft tube, the clip can be reliably rotated. In addition, when a clip pocket is used to hold a pocket of clothes, the tip of the clip is lifted, so a mechanical pencil that can be easily pinched has been realized.

以下、図１、図２及び図３に基いて本発明における実施例１のシャープペンシルを説明する。先ず、シャープペンシルに用いられる軸筒１の後部を細径に形成し、この細径部１Ａに筒状の固定部材２を回動自在に嵌め込む。更に、軸筒１の後部に頭冠３を固着し、軸筒１の外段１Ｂと頭冠３の外段３Ａとの間に固定部材２を回動自在に遊嵌する。この固定部材２には、隆起部２Ａが形成され、この隆起部２Ａの両側に係合突起２Ｂが形成される。また、隆起部２Ａの天部にはやや前方に上端が平坦に形成されたストッパー２Ｃが形成される。更に、固定部材２の隆起部２Ａよりやや後方に突部２Ｄが形成される。 Hereinafter, the mechanical pencil according to the first embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3. First, the rear part of the shaft cylinder 1 used for the mechanical pencil is formed with a small diameter, and the cylindrical fixing member 2 is fitted into the small diameter part 1A so as to be rotatable. Further, the head crown 3 is fixed to the rear part of the shaft tube 1, and the fixing member 2 is freely fitted between the outer stage 1 </ b> B of the shaft tube 1 and the outer stage 3 </ b> A of the head crown 3 so as to be freely rotatable. The fixing member 2 is formed with a raised portion 2A, and engaging protrusions 2B are formed on both sides of the raised portion 2A. Further, a stopper 2C having a flat upper end formed slightly forward is formed on the top of the raised portion 2A. Further, a protrusion 2D is formed slightly behind the raised portion 2A of the fixing member 2.

クリップ４は、前部に受部４Ａが形成されるとともに、やや後方に両側から下方向に伸びた壁部４Ｂを形成する。この２つの壁部４Ｂにはそれぞれ係合孔４Ｃが形成される。更に、クリップ４には壁部４Ｂより後方に伸びた後端部４Ｄを形成する。   The clip 4 has a receiving portion 4A formed at the front portion and a wall portion 4B extending downward from both sides slightly rearward. An engagement hole 4C is formed in each of the two wall portions 4B. Further, the clip 4 is formed with a rear end portion 4D extending rearward from the wall portion 4B.

前記固定部材２の突部２Ｄにコイルスプリング５の下部を被せてコイルスプリング５を取り付ける。次に、固定部材２の隆起部２Ａにクリップ４の壁部４Ｂを被せ、壁部４Ｂの係合孔４Ｃに隆起部２Ａに形成した係合突起２Ｂを嵌め込んでクリップ４を隆起部２Ａに枢着する。この時、クリップ４の後部内面が前記コイルスプリング５に押圧され、クリップ４の前部が内側に付勢される。しかし、固定部材２の隆起部２Ａに形成されたストッパー２Ｃの上端がクリップ４の内面に当接されるので、クリップ４の前部に形成された受部４Ａが軸筒１の表面からわずかに離間される。   The coil spring 5 is attached by covering the lower part of the coil spring 5 on the protrusion 2D of the fixing member 2. Next, the wall portion 4B of the clip 4 is put on the raised portion 2A of the fixing member 2, and the engagement protrusion 2B formed on the raised portion 2A is fitted into the engagement hole 4C of the wall portion 4B, so that the clip 4 is placed on the raised portion 2A. Pivot. At this time, the rear inner surface of the clip 4 is pressed by the coil spring 5, and the front portion of the clip 4 is urged inward. However, the upper end of the stopper 2 </ b> C formed on the raised portion 2 </ b> A of the fixing member 2 is brought into contact with the inner surface of the clip 4, so that the receiving portion 4 </ b> A formed on the front portion of the clip 4 is slightly from the surface of the shaft cylinder 1. Spaced apart.

上記軸筒１を用いるシャープペンシルとしては、軸筒１の後端より突出したノブ６を押圧することによりチャックを前進して芯を繰り出すノック式シャープペンシルや、振ることにより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や、軸筒の前部に形成した窓から突出したボタンを押圧することによりチャックを前進させて芯を繰り出すサイドノック式シャープペンシルや、胴に取り付けられた軸筒を回転することにより芯を繰り出す回転式シャープペンシル等種々のシャープペンシルが考えられる。   The mechanical pencil using the shaft cylinder 1 is a knock-type mechanical pencil that moves the chuck forward by pushing the knob 6 protruding from the rear end of the shaft cylinder 1 or the inertial force of the weight body by shaking. Attached to the barrel, a swing-out mechanical pencil that advances the chuck and advances the lead, or a side knock type mechanical pencil that advances the chuck and pushes the lead by pressing the button protruding from the window formed in the front of the shaft cylinder. Various mechanical pencils are conceivable, such as a rotary mechanical pencil that feeds the core by rotating the shaft.

上記シャープペンシルで筆記を行い、芯が摩耗して先端が傾斜面となった場合には、シャープペンシルを回転して筆記を行うが、この時クリップ４が手に当接した場合にはクリップ４及び固定部材２が軸筒１に対して回転するので、クリップ４は筆記の邪魔にならない位置に移動する。   When writing is performed with the above mechanical pencil and the lead is worn and the tip becomes an inclined surface, the mechanical pencil is rotated and writing is performed. At this time, when the clip 4 comes into contact with the hand, the clip 4 And since the fixing member 2 rotates with respect to the axial cylinder 1, the clip 4 moves to a position that does not interfere with writing.

また、筆記を終了しシャープペンシルを携帯する場合には、クリップ４の後端部４Ｄを押すと、隆起部２Ａの係合突起２Ｂに枢着された係合孔４Ｃを支点としてクリップ４が回転し、クリップ４の前部が上方に持ち上げられる。そして、クリップ４の後部内面が固定部材２の突部２Ｄに当接され図４の状態となる。すると、クリップ４の受部４Ａは軸筒１の表面より大きく離間するので、ポケットの服地等をクリップ４内に挿入し易くなり、確実にクリップ４で挟持することができる。   Further, when the writing is finished and the mechanical pencil is carried, when the rear end portion 4D of the clip 4 is pushed, the clip 4 rotates with the engaging hole 4C pivotally attached to the engaging protrusion 2B of the raised portion 2A. Then, the front part of the clip 4 is lifted upward. Then, the rear inner surface of the clip 4 is brought into contact with the protrusion 2D of the fixing member 2 to be in the state shown in FIG. Then, since the receiving portion 4A of the clip 4 is far away from the surface of the shaft tube 1, it becomes easy to insert the pocket fabric or the like into the clip 4, and the clip 4 can be securely held by the clip 4.

図５及び図６は本発明における実施例２を示すもので、軸筒１１の後部内面に円周状の凹溝１１Ｃを形成する。また、固定部材１２の前部を細径に形成し、この細径部１２Ｅに突部１２Ｆを形成する。更に、細径部１２Ｅの両側には開口窓１２Ｇが形成され、突部１２Ｆが撓み易い形状となっている。この固定部材１２の細径部１２Ｅを前記軸筒１１の後部に挿入し、固定部材１２の突部１２Ｆを軸筒１１の凹溝１１Ｃに遊嵌することにより、固定部材１２は軸筒１１に対して回動自在に取り付けられる。固定部材１２にクリップ４を取り付ける構成は実施例１と同様なので、符号を付して説明は省略する。   5 and 6 show a second embodiment of the present invention, in which a circumferential concave groove 11C is formed on the inner surface of the rear portion of the shaft tube 11. FIG. Moreover, the front part of the fixing member 12 is formed in a small diameter, and the protrusion 12F is formed in the small diameter part 12E. Furthermore, the opening window 12G is formed on both sides of the small diameter portion 12E, and the protruding portion 12F has a shape that is easily bent. The fixed member 12 is inserted into the shaft tube 11 by inserting the small-diameter portion 12E of the fixing member 12 into the rear portion of the shaft tube 11 and loosely fitting the projection 12F of the fixing member 12 into the concave groove 11C of the shaft tube 11. It can be pivotally attached to it. Since the structure for attaching the clip 4 to the fixing member 12 is the same as that of the first embodiment, the reference numeral is given and the description is omitted.

図７は本発明における実施例３を示すもので、頭冠１３に固定部材２２を回動自在に嵌め込み、この頭冠１３の前部を軸筒２１の後部に圧入固着し、軸筒２１の後端と頭冠１３の外段１３Ａとの間に固定部材２２を回動自在に遊嵌する。固定部材２２にクリップ４を取り付ける構成は実施例１と同様なので、符号を付して説明は省略する。   FIG. 7 shows a third embodiment of the present invention. A fixing member 22 is rotatably fitted in the crown 13, and the front portion of the crown 13 is press-fitted and fixed to the rear portion of the barrel 21. The fixing member 22 is loosely fitted between the rear end and the outer stage 13A of the head crown 13 so as to be freely rotatable. Since the structure for attaching the clip 4 to the fixing member 22 is the same as that of the first embodiment, the reference numeral is given and the description is omitted.

シャープペンシル用クリップが軸筒を回しても手に当たる位置から移動して筆記の邪魔にならず、しかも、ポケットの服地等は容易にかつ確実にクリップで挟持することができる。   Even if the mechanical pencil clip rotates the shaft tube, it moves from the position where it hits the hand and does not interfere with writing, and the pocket clothes and the like can be easily and reliably held between the clips.

本発明の実施例１のシャープペンシルを示す主要部断面図である。（実施例１）It is principal part sectional drawing which shows the mechanical pencil of Example 1 of this invention. Example 1 図１のＡ−Ａ線を示す拡大断面図である。（実施例１）It is an expanded sectional view which shows the AA line of FIG. Example 1 本発明の実施例１のシャープペンシルを示す主要部正面図である。（実施例１）It is a principal part front view which shows the mechanical pencil of Example 1 of this invention. Example 1 クリップの受部が軸筒の表面より大きく離間した状態を示す主要部断面図である。（実施例１）It is principal part sectional drawing which shows the state which the receiving part of the clip spaced apart largely from the surface of the axial cylinder. Example 1 本発明の実施例２のシャープペンシルを示す主要部断面図である。（実施例２）It is principal part sectional drawing which shows the mechanical pencil of Example 2 of this invention. (Example 2) 図５のＡ−Ａ線を示す拡大断面図である。（実施例２）It is an expanded sectional view which shows the AA line of FIG. (Example 2) 本発明の実施例３のシャープペンシルを示す主要部断面図である。（実施例３）It is principal part sectional drawing which shows the mechanical pencil of Example 3 of this invention. (Example 3)

１ 軸筒
２ 固定部材
４ クリップ
４Ａ クリップ４の受部
１１ 軸筒
１１Ｃ 軸筒１１の凹溝
１２ 固定部材
１２Ｅ 固定部材１２の細径部
１２Ｆ 固定部材１２の突部
２１ 軸筒
２２ 固定部材 DESCRIPTION OF SYMBOLS 1 Shaft cylinder 2 Fixing member 4 Clip 4A Clip 4 receiving part 11 Shaft cylinder 11C Groove of shaft cylinder 11 12 Fixing member 12E Small diameter part of fixing member 12 12F Protrusion part of fixing member 12 Shaft cylinder 22 Fixing member

Claims (3)

軸筒の後部に固定部材を回動自在に取り付け、この固定部材の隆起部にクリップの支点部を枢着し、かつ、バネによりクリップの前部を内側に付勢し、クリップの前部に形成した受部と軸筒の表面がわずかに離間するとともに、クリップの後部を押操作することによりクリップの前部を持ち上げ、クリップの受部が軸筒の表面より大きく離間することを特徴とするシャープペンシル。 A fixing member is pivotally attached to the rear part of the shaft tube , and a fulcrum part of the clip is pivotally attached to the raised part of the fixing member, and the front part of the clip is biased inward by a spring, and the front part of the clip is The formed receiving part and the surface of the shaft cylinder are slightly separated from each other, and the front part of the clip is lifted by pushing the rear part of the clip, so that the receiving part of the clip is largely separated from the surface of the shaft cylinder. mechanical pencil. 軸筒の後部に頭冠を取り付け、軸筒と頭冠の間にクリップの固定部材を遊嵌することにより、固定部材を軸筒に対して回動自在に取り付けたことを特徴とする請求項１記載のシャープペンシル。 The head cap is attached to the rear part of the shaft tube, and the fixing member is rotatably attached to the shaft tube by loosely fitting a clip fixing member between the shaft tube and the head crown. The mechanical pencil according to 1. 軸筒の後部内面に円周状の凹溝を形成するとともに、固定部材の前部を細径に形成し、かつ、この細径部に突部を形成し、固定部材の細径部を軸筒の後部に挿入して突部を軸筒の凹溝に遊嵌させることにより、固定部材を軸筒に対して回動自在に取り付けたことを特徴とする請求項１記載のシャープペンシル。 A circumferential concave groove is formed on the inner surface of the rear part of the shaft tube, the front part of the fixing member is formed with a small diameter, and a protrusion is formed on the small diameter part. 2. The mechanical pencil according to claim 1, wherein the fixing member is rotatably attached to the shaft tube by being inserted into a rear portion of the tube and loosely fitting the protrusion into the groove of the shaft tube .
JP2006194992A 2006-07-17 2006-07-17 mechanical pencil Expired - Fee Related JP5121175B2 (en)

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JPS53109938A (en) * 1977-03-09 1978-09-26 Takasago Corp Insecticide
JPS5570292A (en) * 1978-11-24 1980-05-27 Nippon Kentetsu Co Ltd Full automatic washing machine
JPH07214988A (en) * 1994-01-28 1995-08-15 Mitsubishi Pencil Co Ltd Writing implement having fastening, and fastening-attaching structure to writing implement axial body
JPH1178362A (en) * 1997-09-05 1999-03-23 Pilot Precision Co Ltd Clip for writing utensil
JP4518915B2 (en) * 2004-11-08 2010-08-04 株式会社パイロットコーポレーション Writing instrument with clip member

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