j 201105518 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種將可替換筆芯自筆管之後 管内之按壓式筆具。 軍 【先前技術】 此種減式筆具已有本發明申請人射請之日本實用新 =錄第3139755鮮利公報(下稱專利文獻一)所揭示之按壓 式筆具。按此按壓式筆具係由：一筆管，其後部周壁具有韩向 開設之長槽孔；-可替換筆芯，其前端具有書 上述筆管内；-彈性構件，用以經常將上述可 Γ按1構件，插人上述筆管之後部，而前 可，換筆心之後端，且後端突出上述筆管之後端；一彈性片， 其係連接社述按壓構件之前端，崎端向後枝伸並可向上 述J管之直徑方向彈性變形；一卡止突起，形成於上述彈$片 =端H筆夾’具有—連接於上述彈性片而可沿上述長 料接離的 具有補文獻—職之構成之按㈣筆具，其筆管之後部 3上所設上述長觀之後雜次連設錢由中間細槽相連 :止孔及自此卡止孔之後觀伸至上述筆管之後端之後部 二，二而上述敎之筆_^雜後部細獅過上述卡止孔及 上^中間_可滑_嵌人上述長槽制。#上述可替換筆芯 寫部藉由彈性構件之復原彈簧之後推力而退縮於上述筆 I内权㈣下，上㈣性y之卡止姨卡止於上述卡止孔$ 宜Z保持上述筆芯之書寫部之退縮狀態’方便攜帶。但在此書 二二狀態下’如按屋操作上述按麼構件之後端時，與此 j成一體之筆夾連同可替換筆芯即抗著復原彈簧之 H前進’而在驗時，上述彈簧片乃藉由上述卡止突起 201105518 =傾斜前面被上述中間細槽之内壁面阻擋逼迫而向筆管之直 位方向内侧產生彈性變形，遂使上述卡止突起下沈通過該中間 細槽之内侧而移行至上述長槽孔，如此，上述卡止突起一進入 上述，槽孔内下方時’該卡止突起即藉助上述彈性片之彈性復 原力浮起而嵌入該長槽孔内，以該卡止突起之垂直後端壁卡止 於槽孔之後端壁，於是，可保持可替換筆芯之前端書寫部 自筆管之前端伸出之可供書寫狀態。 在此可書寫狀態下，如一向筆管内側方向按下筆夾之後端 表面部時，上述彈性片即向筆管之徑向内側彈性變形而解除上 述，止突起之後端與上述長槽孔之後端之卡止關係，上述可替 換筆芯連同按壓構件即可藉由復原彈簧之後推 動，當上述卡止突起-退入上述卡止孔時，該卡止突起 述彈性片之徑向彈性復原力而嵌入上述卡止孔，並以該卡止突 起之後端卡止於該卡止孔之後端，於是，可保持可替換筆芯之 書寫部退沒於上述筆管内之狀態。 依據上述構成之專利文獻一之按壓式筆具，因不使用習知 之凸輪機構且能以最少之構件來安定保持書寫部自筆營 端突出之狀態，同時，可獲得更大之筆夾之曰彈 =自 安1維持書寫部自筆管前端突出以供書寫之狀態，專利文獻一 之按壓式筆具’在書寫部從筆管前端突出狀態下卡止於長槽孔 =後端之卡止突起係形成於彈性片之後端向筆管之徑向外侧 突出之形狀，而筆管之長槽孔係形成平面為長方形狀，且筆夾 腳片則將該筆夾腳片之前後端皆形成對筆管軸向成垂直方向 之平面形狀之橫剖面矩形，在上述書寫部退沒於筆管之狀態 下，該筆夾腳片之後端面藉上述復原彈簧之後推彈性力面呈g 接觸狀態抵接於上述長槽孔之後端面，如此，使筆夾腳片不容 易從上述長槽孔向筆管之後端方向外方拔出來。 、由於專利文獻一之按壓式筆具具有如上述之構成，特別是 筆夹腳片之前後端形成對筆管呈垂直方向之平面狀而使筆夾 腳片整個之橫剖面為矩形，並將此筆夾腳片嵌入平面為長方形 201105518 筆芯時，必需费偷構造，因此，如欲更換可替換 夹腳片制向紐，使嵌人細孔之筆 ί構吃力而不順手。如此，在拔出按 ，而易如i筆夾腳片將别述中間細槽及後部細槽勉強擠 生裂開等^：上=2槽及後部細槽之強制擴開而發 易更換筆芯。因專敝獻—之漏式筆具之構造，實不 【發明内容】 本發明之主要目的在提供—麵上述減式筆具之改良 县=壓式筆具，係由：—筆管，其後部周壁具有轴向開 孔；―可替換筆芯’其前端具有書寫部且後端插入上 f g内，-彈性構件’用峨常將上述可替鮮芯彈性推向 按壓構件’插人上述筆管之後部，而前執住上述可 替換筆K後端’且後端突出上述筆管之後端；-彈性片，其 ^連接於上述按壓構件之前端，而後端向後方延伸並可向上述 筆管之直徑方向彈性變形；—卡止突起，形成於上述彈性片之 後端部；及-筆夾，具有一連接於上述彈性片而可沿上述長槽 孔滑動自如的嵌入該長槽孔之筆夾腳片，且前端部可接離的 巧接於上述筆管之外周壁之各構件所構成；其中，設於上述 筆，之後部周壁之上述長槽孔之後端延伸方向，依序連續形成 有藉由中間細槽連接該長槽孔之後端之卡止孔，及連接該卡止 孔之後端並延伸至上述筆管之後端之後部細槽；其特徵在於： 上述筆夾腳片之後端部形成有能藉對該筆夾施以大於上述彈 性構件之彈性抗力之後推力向上述筆管之後端方向推壓，而將 上述中間細槽及上述後部細槽向槽寬方向依次擠開之後端稜 線部。 根據本發明之按壓式筆具，筆夾腳片之前端部形成有在將 201105518 前述筆管之後部時，能將筆管之後部細槽、卡 筌〜具二9向槽寬方向依次擠開’而使上述筆夾腳片谈入 筆g之長槽孔内之前端稜線部。 漏斗If缺=之按壓式筆具’該後部細槽之後端尚形成有一 人餐之按壓式筆具，按壓構件之前端形成有可供插 筆e内之可替換筆芯之後端部嵌入之嵌合凸部。 筆^表面料在筆夾推壓操 崎ί有構成之本發明之按壓式筆具，具有如下述之功 Ϊ大完之轉内之可#換筆芯時，只要將筆爽 向減後退彈性力之推壓操作力向筆管之後端方 ^箏水」1早Ϊ作，即可藉由連接按壓構件之性片與筆夾 中m 後端部卿成之後端魏部，順次擠開筆管之 動’而使上述筆夾腳片順利通 壓構件連i可;4=而不勉強的將按 容易且順手的，於是，可簡單 ®刹田黎二？聿更換。如此在更換可替換筆芯時， 間細禅;^:片i形成楔形之後端稜線部可容易的將上述中 ^壓二二槽向槽寬方向漸次擠開’不必用力勉強的將 ϊίϊϋΐ内向後端之拔出方向硬拔，因此，可有效防 止上述反、、、田槽隻形或筆管裂開等問題發生。 部瞎再發明之按壓式筆具，在㈣構件插入筆管後 〜錢腳片之前端部卿成之_前端稜形部將筆 ί* 及中間細槽向槽寬方向順次圓滑的漸漸擴開，因 。亦，、有i將上述筆夹腳片容易的組裝於上述長槽孔内之功 心i t本發明之按壓^料’能將筆續肢由筆管之後 之漏斗狀(或伽、形)缺口部及後部細槽 、、、a囫π的推入長槽孔内，因此，具有能將按壓構件容 201105518 易的組裝定位之功效。 合凸二芯 同按壓構件_齊拔更 邱且i 本㈣讀壓絲具，因料之表㈣設按壓操作j 201105518 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a push-type writing instrument in which a replaceable refill is inserted from a pen tube. [Prior Art] This type of subtractive writing instrument has been put up by the applicant of the present invention, and the pressing type pen disclosed in Japanese Patent Laid-Open No. 3139755 (hereinafter referred to as Patent Document 1). According to the press type pen, the pen holder has a long tube with a long slot in the rear of the Han Dynasty; a replaceable refill having a front end of the pen tube; and an elastic member for frequently pressing the above 1 member, inserted into the rear portion of the pen tube, and the front portion is replaceable with the rear end of the pen, and the rear end protrudes from the rear end of the pen tube; an elastic piece is connected to the front end of the pressing member, and the rear end is extended And being elastically deformable in the diameter direction of the J tube; a locking protrusion formed on the elastic piece of the above-mentioned projectile has a connection with the elastic piece and can be separated along the long material. According to the (4) writing instrument, the above-mentioned long view after the pen tube is provided with the money connected by the middle slot: the stop hole and the rear end of the pen tube after observing the hole Department 2, 2 and the above-mentioned 敎 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ # The above-mentioned replaceable refill writing portion is retracted by the rearward force of the elastic spring of the elastic member, and is retracted in the above-mentioned pen I (4), and the upper (four) y card is locked in the locking hole. The retracted state of the writing department is convenient to carry. However, in the case of the second and second states of the book, when the rear end of the member is pressed by the house, the pen holder integral with the j is replaced with the replaceable refill, which is anti-return spring H, and the spring is in the test. The sheet is elastically deformed toward the inner side in the straight direction of the barrel by the locking protrusion 201105518=the inclined front surface is blocked by the inner wall surface of the middle thin groove, so that the locking protrusion sinks through the inner side of the middle groove And moving to the long slot, so that when the locking protrusion enters the above-mentioned inside and below the slot, the locking protrusion is floated by the elastic restoring force of the elastic piece and is inserted into the long slot to the card. The vertical rear end wall of the stop projection is locked to the rear end wall of the slot, so that the front end writing portion of the replaceable refill can be kept from the front end of the pen tube for writing. In the writeable state, when the end surface portion of the pen holder is pressed in the direction of the inner side of the pen tube, the elastic piece is elastically deformed toward the radially inner side of the pen tube to release the above, and the rear end of the protrusion and the rear end of the long slot hole are In the locking relationship, the replaceable refill and the pressing member can be pushed by the return spring, and when the locking protrusion is retracted into the locking hole, the locking protrusion describes the radial elastic restoring force of the elastic piece. The locking hole is embedded, and the rear end of the locking protrusion is locked to the rear end of the locking hole, so that the writing portion of the replaceable refill can be kept in the state of the writing tube. According to the press-type writing instrument of the above-mentioned patent document, since the conventional cam mechanism is not used and the state of the writing portion protrudes from the pen battalion can be stabilized with a minimum of members, a larger clip can be obtained at the same time. = Self-safety 1 maintains the state in which the writing portion protrudes from the front end of the pen tube for writing, and the press-type pen holder of the patent document is stuck in the long slot hole in the state where the writing portion protrudes from the tip end of the pen tube = the locking projection of the rear end The shape formed on the radially outer side of the elastic piece protrudes toward the radially outer side of the pen tube, and the long groove of the pen tube is formed into a rectangular shape, and the pen holder piece forms the pair of the front and the back of the pen piece. a rectangular cross-sectional shape of the planar shape of the tube in the vertical direction, in a state in which the writing portion is retracted from the pen tube, the rear end surface of the pen clamping piece is brought into contact with the elastic force surface by the returning spring The rear end surface of the long slot hole is such that the pen clip piece is not easily pulled out from the long slot hole toward the rear end of the pen tube. Since the press type pen of the patent document has the above configuration, in particular, the front end of the pen clip piece forms a plane shape perpendicular to the pen tube, and the entire cross section of the pen pin piece is rectangular, and When the pen clip is embedded in the rectangular 201105518 refill, it is necessary to steal the structure. Therefore, if you want to replace the replaceable pin-to-back, the pen-embedded pen is difficult to handle. In this way, the pull-out button is pulled out, and the easy-to-seat pin-strips will be squeezed out in the middle slot and the rear slot, etc. ^: upper = 2 slots and the rear slot are forced to expand and the easy-to-change pen core. The main purpose of the present invention is to provide an improved county=press type writing instrument of the above-mentioned subtractive writing instrument, which is composed of: a pen tube, The rear peripheral wall has an axial opening; the "replaceable refill" has a writing portion at the front end and the rear end is inserted into the upper fg, and the elastic member 'usually pushes the above-mentioned replaceable fresh core elastically toward the pressing member' to insert the pen a rear portion of the tube, and the front end of the replaceable pen K is held forward and the rear end protrudes from the rear end of the pen tube; the elastic piece is connected to the front end of the pressing member, and the rear end extends rearward and can be directed to the pen a tube is elastically deformed in a diameter direction; a locking protrusion is formed at an end portion of the elastic piece; and a pen holder has a pen that is coupled to the elastic piece and slidably slidably along the long slot hole a clamping piece, wherein the front end portion is detachable from each of the members of the peripheral wall of the pen tube; wherein the pen is disposed on the rear wall of the rear wall and the rear end of the long groove is continuously formed in sequence There is a connection through the middle slot a locking hole at a rear end of the slot, and a rear slot extending to a rear end of the locking hole and extending to a rear end of the pen tube; wherein: the rear end portion of the pen clamping piece is formed with a clip After the elastic force is greater than the elastic member, the thrust is pressed toward the rear end of the pen tube, and the intermediate narrow groove and the rear narrow groove are sequentially squeezed in the groove width direction and then the end ridge line portion. According to the push-type writing instrument of the present invention, when the front end portion of the pen-clip piece is formed with the rear portion of the pen tube of 201105518, the narrow groove of the pen tube and the groove 9 can be sequentially opened in the direction of the groove width. 'The above-mentioned pen-clip pieces are referred to the front edge ridges in the long slot of the pen g. The funnel If lacks the push-type pen. The rear end of the rear slot is formed with a push-type pen for a person's meal. The front end of the pressing member is formed with an insert that can be inserted into the end of the replaceable refill in the pen e. Convex. The pen surface material is pressed in the pen holder. The pressing type pen of the present invention has the following functions: when the pen refill is changed, the refilling elasticity is reduced as long as the pen refills. The pushing force of the force pushes the end of the pen tube to the end of the pen tube. The knot can be squeezed open by connecting the strip of the pressing member and the rear end of the clip to the rear end of the pen. The movement 'sends the above-mentioned pen-clip piece smoothly through the pressure member to connect i; 4 = not reluctantly to press easy and easy, so, can be simple ® brake Tian Li Er?聿 Replace. In this way, when replacing the replaceable refill, the thinning is performed; ^: after the sheet i is formed into a wedge shape, the end ridge line portion can easily squeeze the above-mentioned middle and second pressure grooves to the groove width direction step by step. The pull-out direction of the end is hard-drawn, so that it is possible to effectively prevent the above-mentioned problems such as the reverse, the shape of the trough, or the cracking of the pen tube. In the push-type pen that was reinvented by the Ministry, after the (4) member was inserted into the pen tube, the end of the front of the money piece was formed. The front end of the prism was gradually smoothed in the direction of the groove width. ,because. Also, there is a function of assembling the above-mentioned pen-clip piece into the long slot hole. The pressing material of the present invention can make the pen continue to be a funnel-shaped (or gamma-shaped) notch after the pen tube is retracted by the pen tube. The portion and the rear fine groove, and a 囫 π are pushed into the long slot, so that it has the effect of facilitating the assembly positioning of the pressing member with the 201105518. Convex two cores with the pressing member _ Qi pull more Qiu and i (four) read the silk, the material table (four) set the pressing operation
止μ之功能，當要卸下按壓構件時，使用者可用丰浐同 △夾壓筆央及按壓構件使卡止突起脫開卡止孔再 H 2拔上方向(後端外方)拔出’因此，操作簡 ： ϊ更==高果__—述= 【實施方式】 〔第一實施形態〕 圖，ΪΛΐ表Ϊ十發明第一實施形態之按壓式筆具之剖視 圖表7^圖中之筆管之俯視圖，第3圖表示第2圖 之筆官之後部之放大俯視圖，第4圖表示 體之縱剖視圖。 α盯〈聿s! 一依此苐一實施形態之按壓式筆具，如第1圖及第2圖所 示，係舉由：前端具有筆芯伸出口 la，且後端部周壁具有軸 向延伸之長槽孔lb之筆管1 ;前端具有書寫部2a，且令此書 寫部2a可從上述筆管1之前端之筆芯伸出口 la伸出及退沒地 自上述筆管1之後端可插拔自如的插入該筆管丨内之可替換筆 芯2 ;將此可替換筆芯2經常施以後退方向之彈性力之復原彈 簧(彈性構件)3;插設於上述筆管1之後部内而前端抵住上述 可替換筆芯2之後端，且後端部突出外露於上述筆管丨之後端 之按壓構件4 ;及連設於此按壓構件4而前端部壓接或近接於 上述筆管1之外周面之筆夾5所構成之可更換筆芯之原子筆為 例來說明。 以下就其詳細構造具體說明：如第2圖及第3圖所示，上 201105518 ΐίΓ二f周，壁後部沿軸向依次連續形成有長槽孔lb，藉由 接該長槽孔lb之後端之卡止孔Μ =When the pressing member is to be removed, the user can press the pen and the pressing member to disengage the locking protrusion from the locking hole and then pull the H 2 in the upward direction (outside the outer side). [Therefore, the operation is simple: ϊ = = = 高 高 __ - 述 = [Embodiment] [First Embodiment] Fig. 10 is a cross-sectional view of a press type pen according to the first embodiment of the invention. The top view of the pen tube, Fig. 3 shows an enlarged plan view of the rear portion of the pen holder of Fig. 2, and Fig. 4 shows a longitudinal sectional view of the body.盯 ! ! 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压 按压a pen tube 1 extending from the long slot lb; the front end has a writing portion 2a, and the writing portion 2a is extendable from the refilling opening la of the front end of the pen tube 1 and retracted from the rear end of the pen tube 1 The replaceable refill 2 inserted into the barrel can be inserted and removed freely; the refillable core 2 is often applied with a resilient spring (elastic member) 3 in the backward direction; inserted in the above-mentioned pen tube 1 a pressing portion 4 that protrudes from a rear end of the replaceable refill 2 and a rear end portion that is exposed at a rear end of the pen tube; and a connecting end member that is crimped or closely attached to the pen at the front end portion The ballpoint pen of the interchangeable refill formed by the pen holder 5 on the outer circumference of the tube 1 is taken as an example. The details of the detailed construction are as follows: as shown in Fig. 2 and Fig. 3, on the upper part of 201105518 ΐίΓ two f, the rear part of the wall is continuously formed with a long slot lb in the axial direction, by connecting the rear end of the long slot lb Card stop hole Μ =
St 之後端，且後端直達上述筆管1之後端之後部 〜上述長槽孔lb係形成平面長方形狀，而上述卡止孔 減16之後端槽寬漸窄之咖八狀開口 J口部lf ^之後端則形成槽寬擴開呈漏斗狀之 第5圖表示與按壓構件4成型一體之筆 視圖，第7圖為第6圖之縱剖視圖，第8圖^第6 圖A-A線之局部剖視圖。 德减ϋΪί圖f ’上述按壓構件4係由後端形成圓筒狀之 ^減。Ma ;自此後端按壓部4a沿著上述筆管ι之 ^延伸之前方延伸部4b 體形成於此前方延伸部扑 ，而，錄容於筆管丨内之可筆芯2之後端之前端頭部 =，大設於此前端頭部4c之前端中心部而可插入上述可替換 紅2之後端凹部内之柱狀嵌合凸苦Md ;連接上述前方頭部 4=後端並向後方呈與上述延伸部化大致成平行延伸且可沿 义官1之控向彈性變形’同時，後端與上述後端按廢部4a之 刚端留置-_之彈性片4e ;及—體形成於此彈性片如之後 端=向筆管1之徑向外方突出之卡止突起4f所構成。上述卡 止大起4f之剷面部係形成自此卡止突起奸之突峰頂端向筆管 1之内控方向傾斜之傾斜前面4g，而此卡止突起4f之後端則 如第6圖及第7 ®所示，形成略向翻下方反折呈絕壁之卡止 面4h。此卡止面4h即成為對上述長槽孔lb之後端及對上述 卡止孔Id之後端卡止定位之卡止面，而形成能將此等長槽孔 lb及卡止孔Id之後端外緣部向筆管1之内徑方向下壓(即逼迫） 之傾向之斜面。 ，有如上述構成之按壓構件4之彈性片4e之大略中腹部 上面藉由一與該彈性片4e垂直延伸之筆夾腳片5a 一體連設一 201105518 3壓=:?成气前端部藉由上述彈性片4e之彈性力而 4第tL夹-5連接成一體之筆央腳片53之前端:如= 第8圖所不，形成為前端稜線部(即楔形部)5b，且此筆央腳片 5c 5 5b ^ 為了將觀構件4自筆管丨之後端喊於筆管丨 ίί前t順利擠開後部細槽1e、卡止孔ld *中間細槽1〇 孔lb内定位者;而後端稜線部5C則是為了卸下按 壓構件4時’能容諸前至後依次擠開上述巾間細槽lc，卡 止孔Id ^後部細槽le而將按壓構件4拔出者。 上述葦夾5之前端部藉由上述彈性片知 常=，近接筆管i之外周面，又，上述筆夾5 二 形1有具凹曲面狀之按壓施力部5d。另一方面，上述筆管i 之前$握持部套設有以如橡膠等彈性材料製成之握持軟套6 (參照第1圖）。 以下，再就依上述實施形態之按壓式筆具之組裝方法兼動 作過程詳細說明。第9圖(a)，（b)表示按壓式筆具之主要部分之 動作說明圖。 組裝時，先將復原彈簧3套入可替換筆芯2之前端^5外周 (參照第1圖)後，將此狀態之可替換筆芯2從筆管丨之後端開 口插)該筆管1之内部；其次，將按壓構件4之前端頭部4〇 自筆管1之後端一邊插入其内’一邊使筆夾腳片之前端稜 線部5b自筆管1後端之缺口部lf推入後部細槽le内，並繼 續向前推進，則此前端稜線部5b便將該後部細槽le 一邊擠 開，一邊前進，而分別擠開卡止孔ld及中間細槽lc之後，筆 夾腳片5a即可自後方向前方依次通過後部細槽u，卡止孔id 及中間細槽le ’最後it人(嵌人)長槽孔lb，*可順利完成按壓 構件4組裝在筆管1之後部之作業。 在上述按壓構件4之組裝過程中，當筆夾腳片5a沿上述 後部細槽le向前移動之際’按壓構件4之彈性片如後端之卡 201105518 接觸滑動，而循著上述後部細槽ie之内側緣部 變形’致使卡止突起料14下7筆二二彈性彎曲 時r上側(底，‘ 彈性復肩力μ、、·☆時:上述卡止突起邾即藉由上述彈性片如之 彈簧3之後推内，同時，藉由上述復原 id之後简參照第9 _]，於是，上述可替換 端書寫部2a即可轉定位在退縮於筆管1内之狀 t)。在此狀態下，按壓構件4前端之嵌合凸 筆芯2 可義找2之後端_之狀態擋止該 内之=可替換,芯2 端之書寫部2a保持退縮於筆管1 ίί ΐ g p自卡止孔ld之前端經#八狀開口 k循著 ^間細槽1c之内侧緣部接觸滑動，而如前述者一般，再使上 ^彈性片4e向筆管i之内徑方向彈性彎曲變形，使上止 犬起4f可向前移動，當該卡止突起好一通過上述中間細槽l 之内側(底面)區段而到達長槽孔lb下面時，上述可替換 2 前端之書寫部2a即從筆管！之前端伸出外部之同時，上^ 止突^ 4f藉*彈性片4e之彈性復原力上浮而進人長槽孔！ 内，就在此時點，一解除施加於按壓構件4之後端按壓力時， 卡止突起4f之後端即藉由復原彈簧3之後推彈性力而卡止 位於長槽孔lb之後端壁[參照第9圖(3)]，於是，上述可替換 筆芯2之前端書寫部2a即可維持定位在突出筆管丨之前 可供書寫之狀態。 在如上述之可供書寫狀態下，若用手指將筆夾5之後部表 面之指壓施力部5d向筆管1之後部周面徑向按下時，彈性片 4e即經由筆夾腳片5a下壓力而向筆管！之内徑方向彈性彎曲 變形，藉此彈性變形，彈性片4e後端之卡止突起竹即下沈而 201105518 自卡止於孔lb之後端壁之卡止位 =二卡f之後端絕壁對長槽孔化 3之後推雕力量—齊助上職原彈菁 之後端卡烟时使卡止突起奸 管1内之狀態。孔d後&可保持書寫部2a退入筆 f次’另就更換可替換筆芯2之步驟加以說明如下： 之肤C筆ΐ2前端之書寫部2a已從筆管1之前端伸出 之下，即，卡止突起4f之後端卡止於長槽孔lb 狀^下，欲更換墨水已用完之可替換筆芯2時只要 3 部f按ί構件4之後端，—邊將筆夾5之按“ 彺後拉’則筆夾5即向筆管！後端方向移動 4 4f之後端壁對長槽孔lb之後端之卡止關係之同㈡= 5a之後端稜線部5e依次擠人中間細槽u及後部細槽^内， ===le及後部細槽le分別向槽宽方向擠開，遂能通 匕中間、，田槽lc及後部細槽le後，順利將按壓構件4 由於可替換筆芯2之後端管口嵌入按壓構件4之嵌合凸部如 内連成-體，可替換筆芯2即可隨構件4自筆管 部-齊拔絲。 將如此從筆管1内拔出來之可替換筆芯2抽掉以留下按壓 構件4後，將新的可替換筆芯從筆管1後端插入筆管1内然 後，再將按壓構件4自筆管1後端插入筆管i内直到嵌合凸& 4d嵌入新可替換筆芯之後端，即可完成新筆芯之更換裝0配。β 以上係就維持書寫部2a自筆管1之前端伸出之狀態下更 換可替換▲筆芯2之情形加以說明，但在書寫部2a退縮於筆管 1内之狀態下，亦可依照上述同樣之操作要領更換可替換筆芯 2 ’自不寺吕。 根據以上說明之第一實施形態，因連接按壓構件4之彈性 11 201105518 一體之筆夾腳片以之前端部及後端部分別 ίί:後端稜線部5c’且將此筆夾腳片5a構成 梓〗六总S之後端經由後部細槽h卡止孔Id—中間細 ^件二λ =骨動λ推^^長槽孔lb内完成組裝，因此，將按壓 前端耪结邮^裝於筆管1之後部時，可藉上述筆夾腳片5a之 ^將，細槽&及中間細槽lc依次分別向槽寬 中^二！ S上述筆夹腳片5&容易通過上述後部細槽化及 孔&田肉槽於是，可將上述筆爽腳片5a簡單的組裝於長槽 , *此具有可容易將按壓構件4組襄於筆管1之後部 之功效。 甯之ίΐ卜後部細槽1e之後端形成有槽寬比後部細槽k 形之缺山口部lf，且於卡止孔ld之前端部形成 3、田槽C之後端槽寬漸窄之喇叭狀開口部lg，使卡止 連接，端Ϊΐί佩狀口部1g與中間細槽1C之後端相 县抽入有献上述筆夹腳片5a之前端稜線部5b更容 槽1e及中間細槽1C到達長槽孔1b而完成 ^按壓構件4之前端中心部因設有能壓入嵌合於已插入 懕1杜Γί可筆芯2之後端内部之嵌合凸部4d，而於按 插入筆官1後部時’能自動與可替換筆芯2連成一體 更換新筆芯時，將按壓構件4卸下時能朝上述可 朁換筆心2—起在一個動作下卸下來，故非常簡單方便。 再者，在卸下按壓構件4時，只要按下筆夹5後端部 41=，厂堅構件4向筆管1之後方推動ΐ止ίϊ 之Ϊ端或卡止孔ld之後端之卡止關係即被解 除’筆夾腳片5a之後端稜線部5c驗易將中間細槽 =及後部細槽le分別擠開，遂能將按壓構件4 一齊簡單卸下 采0 又，上述按壓施力部5d之表面因形成凹部曲面狀且右 按壓操作時之止滑魏，故在卸下減構件4時，可將按^構 12 201105518 件4與筆央5 —起自筆管1之後端向後拔出而卸下來。 命此外，上述後部細槽le之後端形成有槽寬比後部細槽le 寬之擴大成漏斗形之缺口部lf，且於卡止孔ld之前端部形成 有向中間細槽lc之後端槽寬漸窄之喇队狀開口部lg，使卡止 孔Id之前端藉由此喇叭狀開口部lg與中間細槽lc之後端相 連接，同時，筆夾腳片5a之前端部及後端部各形成有前端稜 線部5b及後端稜線部5C，因此，能藉由筆夾腳片5a之前端 稜線部5b及後端稜線部5C以輕小操作力將後部細槽le及中 間細槽Lc向槽寬方向擠開，於是，具有可防止起因於勉強擴 開後部細槽le或中間細槽lc所造成之筆管〗之破裂等缺失^ 功效。 、 再者’在按壓操作按壓構件4之後端按壓部時，因上述卡 止突起41之傾斜前4g會沿著中間細槽lc之内側緣部接觸滑 動而下降於中間細槽1C之底面，遂具有能圓滑的滑過該細槽 lc之功效。又，上述卡止突起4f之後端面所形成之内折絕^ 之卡止面4h使受到復原彈簧3之後推彈性力之上述卡止突 4f能確實卡止於上述卡止孔w之後端或上述長槽孔比之後 端，並增強卡止力，而具有能將可替換筆芯2牢固確實的保持 在技壓刚進而伸出之位置及退縮於筆管1内之位置之外要'' 〔第二實施形態〕 双禾。 第10圖表示本發明第二實施形態之按壓式筆具之筆夾之 俯視圖，第11圖表示第10圖之筆夾之側視圖。八 在此第二實施形態中，係在上述第一實施形態之筆夾5之 後端部表面所形成之按壓施力部5d之表面形成一與上述筆炎 5之長度方向呈垂直之方向突起之止滑舌部5e，此設計具有在 卸下按壓構件4時，能使藉此止滑舌部5e用手指 壓施力部5d並向筆管1之後端方向推動之操作更容易，於β 可進一步提高操作性之功效。 疋 〔第三實施形態〕 在第一實施形態中，係就將筆夾腳片化之前端部與後端 L S1 13 201105518 部之兩者形成前端稜線部5b及後端稜線部5c之情形加以說 明，但在本實施形態之按壓式筆具則表明即使僅在上述筆夾腳 片5a之後％»部形成後端棱線部5c亦可行。在此情形時，更換 了替換筆4 2之際’可以如前述將上述筆夾5之向筆管1之後^ ^方向按下推壓，即可藉復原彈簧3之助及後端稜線部允自 前向後順次擠開筆管1之中間細槽lc及後部細槽le，而使筆 大聊片通過上述中間細槽lc及後部細槽le，遂可將筆爽5 ^筆ί 1之後端輕易卸下來。於是，可將可替換筆芯2之更換 操作容易順手實施。只是，筆芯更換後要將筆夾5裝回筆管j 内時，需用略大之推壓力抗著復原彈簧3藉筆夾腳片5a擠開 通過上述後部細槽le及中間細槽lc進入長槽孔比内而已， 然而，因後部細槽le及中間細槽lc之後端，亦即筆夾5裝入 f管1内0f之筆夾腳片5a之入口端皆形成漸縮之漏斗型^喇 =口呈一緩衝區，故不致有勉強過劇擠開上述後部細槽卜及 中間細槽1c造成各細槽lc，le變形或筆管1壁破裂等情形發 生之虞。 x 〔第四實施形態〕 =12圖表示本發明第四實施形態之按壓構件與筆夾組合 圖£„ ’第13圖為沿第12圖之箭頭方向所視之端視 夕&圖為第12圖之A_A線剖視圖，第15圖為第12圖 線剖視圖。 笛一香&圖A至第15圖所示，筆夾腳片5&之前端部如同前ϋ 之昝水$ ^態形成有前端稜線部5t>，但在此第四實施形態4 笛一.腳片之後端部所形成之後端稜線部5c之構造與上ii 弟一實施形態略有不同。 、 線邱t,失5a之後端部只有在其上半部形成有後端索 、。CM旦下半部則形成非楔形後端稜線部5c之平面壁部5f 圖第實麵態之構成’當筆具不使用時(參照第 之料2目㈣料3之後方推力使卡止》 卡止於卡止孔Id之後端而保持前端之書寫部2 201105518 退沒於筆管1内之狀態，在此狀態下，若因受到意想不到 必要外力，而萬一卡止突起4f之後端與卡止孔ld之後端 止關係被解除時’筆夾腳片5a之後端部之下半部因形成 後端稜線部5e之平面卿5f，可簡卡止力，而不輕 = 中間細槽lc及後部細槽ie，故具有防止按壓構件4在上二 外下向後移動，致使按壓構件4脫落之情形發生之功效。“忍 此外，在更換可替換筆芯時，只要按下筆夾腳片>5a 部之按壓施力部5d往筆管1之後端方向推動時，卡止於 孔Id後端之卡止突起4f之卡止作用即被解除之同時，可 夾腳片4a之上半部所形成之後端稜線部5c依次輕易的擠^ 間細槽lc及後部細槽le，而將按壓構件4及可替換筆芯2 下來，故可確實且圓滑簡單的進行筆芯之更換作業 '。心P 因此’筆夾腳片5a之後端稜線部允僅僅在更'換可替換 心時產生其功此’其他狀態則藉筆夾腳片5a之平面壁部^ 機能而可防止按壓構件4因外力而意外脫落之事態發生。 【圖式簡單說明】 第1圖表示依本發明第一實施形態之按壓筆具之縱剖視 圖。 ' 第2圖表示第1圖中之筆管之平面圖。 第3圖表示第2圖之筆管之後部之放大平面圖。 第4圖表示第2圖之筆管之整體之橫剖視圖。 第5圖表示第1圖中之按壓構件與筆炎連體之立體圖。 ^ 6圖表示第5圖中之按壓構件與筆錢體之侧視圖。 第7圖表示第6圖中之按壓構件與筆夾連體之縱剖視圖。 第8圖表示沿第6圖A-A線剖開之筆夾腳片之剖視圖。 第9圖(a)，(b)表示依本發明第一實施形態之 且 部之動作說明圖。 晋 第10圖表示依本發明第二實施形態之筆夾之俯。 第11圖表示第10圖所示筆炎之局部側視圖。 S1 15 201105518 第12圖表示依本發明第四實施形態之按壓構件與筆夾連 體之側視圖。 第13圖表示從第12圖所示箭頭方向所視端面示意圖。 第14圖表示沿第12圖A-A線剖切之剖視圖。 第15圖表示沿第12圖B-B線剖切之剖視圖。 【主要元件符號說明】 1 筆管 la 筆芯伸出口 lb 長槽孔 lc 中間細槽 Id 卡止孔 le 後部細槽 If 漏斗狀缺口 lg 喇口八狀開口部 2 可替換筆芯 2a 書寫部 3 復原彈簧(彈性構件） 4 按壓構件 4a 後端按壓部 4b 前方延伸部 4c 前端頭部 4d 嵌合凸部 4e 彈性片 4f 卡止突起 4g 傾斜前面 4h 卡止面 5 筆夾 5a 筆夾腳片 5b 別端棱線部 5c 後端棱線部 5d 按壓施力部 5e 止滑舌部 5f 平面壁部 6 握持軟套 [S 1 16St rear end, and the rear end directly reaches the rear end of the pen tube 1 and the long slot lb is formed into a flat rectangular shape, and the locking hole is reduced by 16 and the end groove width is gradually narrowed. The rear end is formed with a groove width and is expanded into a funnel shape. FIG. 5 is a view showing a pen which is integrally formed with the pressing member 4. FIG. 7 is a longitudinal sectional view of FIG. 6, and FIG. 8 is a partial sectional view taken along line AA of FIG. . The pressing member 4 is formed by a cylindrical shape from the rear end. Ma; since the rear end pressing portion 4a extends along the above-mentioned pen tube ι, the front extension portion 4b is formed in the front extension portion, and is accommodated in the front end of the rear end of the refillable core 2 in the pen tube a portion is provided at a center portion of the front end portion of the front end portion 4c to be inserted into the columnar fitting projection Md in the end recess portion of the replaceable red 2; connecting the front head portion 4 = the rear end and being rearward The extension portion is formed to extend substantially in parallel and is elastically deformable along the control direction of the officer 1 while the rear end and the rear end are left by the rigid end of the waste portion 4a - the elastic sheet 4e; and the body is formed in the elasticity The sheet is formed as a rear end = a locking projection 4f that protrudes outward in the radial direction of the barrel 1. The shovel face of the above-mentioned locking up 4f forms an inclined front face 4g which is inclined from the tip end of the stuck projection to the inner control direction of the pen tube 1, and the rear end of the locking projection 4f is as shown in Figs. 6 and 7. ® shows a locking surface 4h that is slightly folded back and folded into a wall. The locking surface 4h is a locking surface for positioning the rear end of the long slot lb and the rear end of the locking hole Id, and is formed to be able to be the outer slot lb and the latching hole Id. The slope of the tendency of the edge portion to be pressed (i.e., forced) toward the inner diameter of the pen tube 1. The upper middle abdomen of the elastic piece 4e of the pressing member 4 having the above-described configuration is integrally connected with a pen-clip piece 5a extending perpendicularly to the elastic piece 4e, and a front end portion is formed by the above-mentioned The elastic force of the elastic piece 4e and the 4th tL clamp-5 are integrally connected to the front end of the central leg piece 53: as shown in Fig. 8, it is formed as a front end ridge portion (i.e., a wedge portion) 5b, and the pen foot is Sheet 5c 5 5b ^ In order to squeak the viewing member 4 from the end of the pen tube to the pen tube 丨ίί before t smoothly squeeze the rear fine groove 1e, the locking hole ld * the middle fine groove 1 in the hole lb locator; and the rear ridge line In order to remove the pressing member 4, the portion 5C is capable of sequentially squeezing the narrow groove lc between the front and rear, and the locking hole Id^ the rear narrow groove to pull the pressing member 4 out. The front end portion of the above-mentioned jaw 5 is normally closed by the elastic piece, and is close to the outer peripheral surface of the pen tube i. Further, the pen holder 5 has a concave curved pressing force applying portion 5d. On the other hand, the pen holder i is provided with a grip soft cover 6 made of an elastic material such as rubber before the grip portion (see Fig. 1). Hereinafter, the assembly method and the operation process of the push type writing instrument according to the above embodiment will be described in detail. Fig. 9 (a) and (b) are explanatory views showing the operation of the main part of the push type writing instrument. When assembling, the return spring 3 is first inserted into the outer periphery of the front end 5 of the replaceable refill 2 (refer to FIG. 1), and the replaceable refill 2 of this state is inserted from the rear end of the pen tube )) the pen tube 1 Next, the front end portion 4 of the pressing member 4 is inserted into the inner end of the pen tube 1 and the front end ridge portion 5b of the pen holder is pushed from the notch portion lf at the rear end of the pen tube 1 into the rear fine groove. In the le, and continuing to advance, the front end ridge portion 5b pushes the rear narrow groove le and advances, and after the locking hole ld and the intermediate narrow groove lc are respectively pushed out, the pen clamping piece 5a is The rear narrow groove u, the locking hole id and the middle thin groove le 'the last person (embedded) long slot lb, * can be smoothly completed from the rear to the front, and the pressing member 4 can be assembled in the rear of the pen tube 1 . During the assembly process of the pressing member 4, when the pen clamping piece 5a moves forward along the rear narrow groove le, the elastic piece of the pressing member 4, such as the card of the back end 201105518, contacts and slides, and follows the rear fine groove. The deformation of the inner edge of the ie is caused to cause the upper end of the locking projection 14 to be elastically bent at the upper side (bottom, 'elastic complex shoulder force μ, ☆ ☆: the above-mentioned locking protrusion 邾 by the above elastic piece such as The spring 3 is then pushed inside, and at the same time, after the restoration id, the ninth _] is simply referred to, so that the replaceable end writing portion 2a can be rotationally positioned in the shape t) retracted in the barrel 1. In this state, the fitting embossing core 2 at the front end of the pressing member 4 can be used to find the state of the rear end _, and the writing portion 2a of the core 2 end is kept retracted to the pen tube 1 ίί ΐ gp The front end of the locking hole ld is slid along the inner edge of the thin groove 1c via the #8-shaped opening k, and as in the foregoing, the upper elastic piece 4e is elastically bent toward the inner diameter of the pen tube i. Deformation, the top dog 4f can be moved forward, and when the locking protrusion passes through the inner (bottom) section of the middle slot l to reach the long slot lb, the replaceable 2 front end writing portion 2a is from the pen tube! When the front end protrudes from the outside, the upper end of the protrusion 4f borrows the elastic restoring force of the elastic piece 4e to float into the long slot! At this point, at the time of releasing the pressing force applied to the pressing member 4, the rear end of the locking projection 4f is locked by the elastic force of the return spring 3 and is locked at the end wall of the long slot lb [refer to 9 (3)], then the front end writing portion 2a of the replaceable refill 2 can be maintained in a state in which it can be written before the pen tube is protruded. When the finger pressing urging portion 5d on the rear surface of the pen holder 5 is pressed radially toward the rear peripheral surface of the pen tube 1 by the finger as described above, the elastic piece 4e is passed through the pen holder piece. 5a under pressure and to the pen tube! The inner diameter direction is elastically bent and deformed, thereby elastically deforming, and the locking protrusion of the rear end of the elastic piece 4e is sunk and the 201105518 is self-locking to the end wall of the hole lb; the rear end of the second card f is long After the slotting is 3, the power of the sculpt is promoted. After the hole d & can keep the writing portion 2a retracting the pen f times', the step of replacing the replaceable refill 2 is explained as follows: The writing portion 2a of the front end of the skin C pen 2 has protruded from the front end of the pen tube 1 Next, that is, the rear end of the locking projection 4f is locked in the long slot lb. When the replaceable refill 2 in which the ink has been used up is replaced, only three parts f are pressed by the rear end of the member 4, and the clip is clamped. 5 Press "彺后拉拉", then the pen holder 5 is toward the pen tube! After the rear end direction moves 4 4f, the end wall has the same locking relationship with the rear end of the long slot lb (2) = 5a, and the end ridge line portion 5e is sequentially squeezed In the middle fine groove u and the rear fine groove ^, the ===le and the rear fine groove le are respectively squeezed toward the groove width direction, and the middle portion, the field groove lc and the rear fine groove le are smoothly passed, and the pressing member 4 is smoothly pressed. Since the fitting end of the replaceable refill 2 is embedded in the fitting convex portion of the pressing member 4, such as the inner connecting body, the replaceable refill 2 can be drawn from the pen tube portion with the member 4. This will be so from the pen tube 1 After the removable refill 2 is pulled out to leave the pressing member 4, the new replaceable refill is inserted into the barrel 1 from the rear end of the barrel 1 and then the pressing member 4 is attached to the barrel 1 The rear end is inserted into the pen tube i until the fitting convex & 4d is embedded in the rear end of the new replaceable refill, and the replacement of the new refill can be completed. The β above maintains the writing portion 2a from the front end of the pen tube 1 In the state in which the replaceable ▲ refill 2 is replaced, the description will be made. However, in the state where the writing portion 2a is retracted in the pen tube 1, the replaceable refill 2 can be replaced according to the same operation method as described above. According to the first embodiment described above, the elastic finger 11 201105518 is integrally connected to the pen piece to the front end portion and the rear end portion respectively ίί: the rear end ridge portion 5c' and the pen grip piece 5a After the 梓 六 总 总 总 总 总 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六 六When the rear portion of the pen tube 1 is used, the above-mentioned pen-clip pieces 5a can be used, and the fine groove & and the intermediate fine groove lc are respectively sequentially oriented to the groove width. Slotting and hole & field meat trough, then the above-mentioned pen-cooling piece 5a can be simply assembled in the long groove, *this The pressing member 4 can be easily attached to the rear portion of the pen tube 1. The rear end of the narrow groove 1e is formed with a groove width ratio ft of the rear narrow groove k-shaped, and is in the locking hole ld The front end portion is formed in the front end portion 3, and the trumpet-shaped opening portion lg in which the end groove width is gradually narrowed after the field groove C is formed, so that the locking connection is made, and the end portion of the mouth portion 1g and the middle thin groove portion 1C are drawn into the county. The front end ridge portion 5b of the sheet 5a further receives the groove 1e and the intermediate narrow groove 1C to reach the long slot 1b, and the center portion of the front end of the pressing member 4 is formed by being press-fitted into the inserted 懕1 Γ Γ 可 refill 2 The fitting convex portion 4d inside the rear end can be automatically replaced with the replaceable refill 2 when the rear portion of the pen holder 1 is inserted, and when the new refill is replaced, the pressing member 4 can be replaced as described above. The pen 2 is unloaded under one action, so it is very simple and convenient. Further, when the pressing member 4 is removed, as long as the rear end portion 41 of the pen holder 5 is pressed, the factory member 4 pushes the rear end of the pen tube 1 or the rear end of the locking hole ld. That is, after the 'pen gripping piece 5a is released, the end ridge line portion 5c is easy to squeeze the middle thin groove = and the rear fine groove le respectively, and the pressing member 4 can be simply removed from the same, and the pressing force applying portion 5d Since the surface of the concave portion is curved and the sliding operation is performed when the right pressing operation is performed, when the reducing member 4 is removed, the rear end of the pen tube 1 can be pulled back together with the pen 5 and the pen 5 Remove it. Further, the rear end of the rear fine groove le is formed with a groove width lf which is wider than the width of the rear fine groove le and enlarged to a funnel shape, and the end groove is formed at the end portion of the locking hole ld before the intermediate narrow groove lc The taper-shaped opening portion lg of the tapered portion is such that the front end of the locking hole Id is connected to the rear end of the intermediate thin groove lc by the flared opening portion lg, and the front end portion and the rear end portion of the pen clamping piece 5a are respectively Since the front end ridge portion 5b and the rear end ridge portion 5C are formed, the rear narrow groove le and the middle narrow groove Lc can be moved with a slight operation force by the front end ridge line portion 5b and the rear end ridge line portion 5C of the pen grip piece 5a. The groove width direction is squeezed out, so that it has the effect of preventing the breakage of the pen tube caused by the expansion of the rear narrow groove le or the intermediate fine groove lc. Further, when the end pressing portion of the pressing member 4 is pressed, the front side 4g of the locking projection 41 is slid along the inner edge portion of the intermediate narrow groove lc and is lowered to the bottom surface of the intermediate narrow groove 1C. It has the effect of being able to smoothly slide over the fine groove lc. Further, the locking surface 4h which is formed by the end surface of the locking projection 4f and which is formed by the end surface of the locking projection 4f can be surely locked to the rear end of the locking hole w or the above-mentioned locking projection 4f which is biased by the return spring 3 The long slot is longer than the rear end and enhances the locking force, and has the ability to hold the replaceable refill 2 firmly and securely in the position where the technical pressure is just extended and retracted from the position inside the pen tube 1 '[ Second embodiment] Shuanghe. Fig. 10 is a plan view showing a pen holder of the push type writing instrument according to the second embodiment of the present invention, and Fig. 11 is a side view showing the pen holder of Fig. 10. In the second embodiment, the surface of the pressing urging portion 5d formed on the end surface of the pen holder 5 of the first embodiment is formed to protrude in a direction perpendicular to the longitudinal direction of the pen inflammatory 5 The sliding tongue portion 5e is designed to have an operation of pressing the pressing portion 5e by the finger pressing force portion 5d and pushing it toward the rear end of the barrel 1 when the pressing member 4 is removed. Further improve the efficiency of the operation.第三 [Third Embodiment] In the first embodiment, the front end ridge portion 5b and the rear end ridge portion 5c are formed by both the end portion and the rear end L S1 13 201105518 portion before the pen clip is formed. Note that, in the push type writing instrument of the present embodiment, it is also possible to form the rear end ridge portion 5c only in the %» portion after the above-described pen grip piece 5a. In this case, when the replacement pen 4 2 is replaced, the pressing of the pen holder 5 to the pen tube 1 can be pressed as described above, and the return spring ridge and the rear ridge line can be used. Squeeze the middle thin groove lc and the rear fine groove le of the pen tube 1 from the front to the back, and let the pen big chat piece pass through the middle fine groove lc and the rear fine groove le, so that the rear end of the pen cool 5 ^ pen ί 1 can be easily unloaded Come down. Thus, the replacement operation of the replaceable refill 2 can be easily carried out smoothly. However, when the pen holder 5 is to be reinstalled into the pen tube j after the refill is replaced, it is necessary to use a slightly larger pressing force against the return spring 3 to push the pen piece 5a through the rear narrow groove and the middle slot lc. Entering the long slot is only inside, but the funnel type is formed by the rear end slot and the rear end of the middle slot lc, that is, the pen holder 5 is loaded into the f tube 1 and the entrance end of the pen clip 5a is formed. ^La = mouth is a buffer, so there is no way to squeeze out the above-mentioned small groove and the middle slot 1c, causing the deformation of each slot lc, le or the wall of the pen tube 1 to break. x [Fourth Embodiment] Fig. 12 is a view showing a combination of a pressing member and a pen holder according to a fourth embodiment of the present invention. Fig. 13 is a view taken along the direction of the arrow in Fig. 12; Fig. 15 is a cross-sectional view taken along line A_A, and Fig. 15 is a cross-sectional view taken on line 12 in Fig. 12. As shown in Fig. A to Fig. 15, the front end portion of the pen holder 5& There is a front end ridge portion 5t>, but in the fourth embodiment 4, the structure of the rear end ridge portion 5c formed at the rear end portion of the leg piece is slightly different from that of the upper ii brother embodiment. Then, the end portion is formed with a rear end cable only in the upper half thereof, and the lower half portion of the CM denier forms the flat wall portion 5f of the non-wedge rear end ridge portion 5c. The composition of the solid surface state is "when the writing instrument is not used ( Referring to the second material (4) of the first material (4), the thrust is applied to the rear end of the locking hole Id, and the writing portion 2 of the front end is held. The 201105518 is retracted from the inside of the pen tube 1. In this state, The unexpected external force is received, and in the event that the rear end of the locking projection 4f and the locking hole ld are terminated, the pen gripping blade 5 is removed. After the a lower end half of the end portion is formed by the flat surface 5f forming the rear end ridge portion 5e, the card can be simply locked, and not light = the intermediate thin groove lc and the rear fine groove IE, so that the pressing member 4 is prevented from being in the upper second Moving downward and backward causes the pressing member 4 to fall off. "In addition, when replacing the replaceable refill, just press the pen gripping piece > 5a pressing force applying portion 5d toward the rear end of the pen tube 1 At the time of pushing, the locking action of the locking projection 4f that is locked at the rear end of the hole Id is released, and the rear end ridge portion 5c of the upper half of the clamping piece 4a can be easily squeezed in sequence. And the rear narrow groove le, and the pressing member 4 and the replaceable refill 2 are lowered, so that the refilling operation of the refill can be performed smoothly and simply. The heart P thus the end edge line portion of the pen gripping piece 5a is only allowed to be Further, when the replacement of the heart can be replaced, the other state can prevent the pressing member 4 from accidentally falling off due to the external force by the function of the flat wall portion of the pen clamping piece 5a. [Simple description of the figure] The figure shows a longitudinal sectional view of a pressing writing instrument according to a first embodiment of the present invention. Fig. 2 is a plan view showing the pen tube in Fig. 1. Fig. 3 is an enlarged plan view showing the rear portion of the pen tube of Fig. 2. Fig. 4 is a cross-sectional view showing the entire pen tube of Fig. 2. A perspective view showing the pressing member and the pen yan body in Fig. 1. Fig. 6 is a side view showing the pressing member and the pen body in Fig. 5. Fig. 7 is a view showing the pressing member and the pen holder in Fig. 6. Fig. 8 is a cross-sectional view of the pen holder according to the line AA of Fig. 6. Fig. 9(a) and (b) are views showing the operation of the portion according to the first embodiment of the present invention. Fig. 10 shows a pen holder according to a second embodiment of the present invention. Fig. 11 is a partial side view showing the phlegm shown in Fig. 10. S1 15 201105518 Fig. 12 is a side view showing the connection of the pressing member and the pen holder according to the fourth embodiment of the present invention. Fig. 13 is a view showing the end face viewed from the direction of the arrow shown in Fig. 12. Fig. 14 is a cross-sectional view taken along line A-A of Fig. 12. Figure 15 is a cross-sectional view taken along line B-B of Figure 12; [Description of main component symbols] 1 Pen tube la Refill extension lb Long slot lc Intermediate slot Id Lock hole le Rear slot If funnel notch lg Baroque opening 2 Refillable 2a Writing part 3 Restoration spring (elastic member) 4 pressing member 4a rear end pressing portion 4b front extending portion 4c front end portion 4d fitting convex portion 4e elastic piece 4f locking projection 4g inclined front surface 4h locking surface 5 pen holder 5a pen clamping piece 5b End edge line portion 5c Rear end ridge portion 5d Pressing force applying portion 5e Stopping tongue portion 5f Planing wall portion 6 Holding soft sleeve [S 1 16