200533527 (1) ， 九、發明說明 【發明所屬之技術領域】 本發明係關於自動地進行筆芯反復送出或書寫體前端 突出之書寫用筆。 【先前技術】 以往’在書寫用筆，具有按壓書寫用筆後端，或使書 I 寫用筆的一部分旋轉，以進行自動鉛筆之筆芯反復送出或 原子_之書寫體（原子筆芯）前端突出者。 在這種書寫用筆，爲了減低用來按壓或旋轉時之使用 者的時間上的勞力或減輕按壓時使用者的拇指等的按壓力 ，而至目前爲止提案或嘗試有多數將這些操作自動化者。 1進行這些操作之自動化的提案中，具有：使用馬達例如 超音波馬達或螺線管等作爲動力源（以下稱爲致動器）。 使用以上的致動器之書寫用筆的結構係如專利文獻1 φ 所揭示者。又，使用超音波馬達的自動鉛筆結構係如專利 文獻2所揭示者。 • 【專利文獻1】日本特許3259435號 < 【專利文獻2】日本特開2 00 1 - 1 02 84號公報 但，在使用馬達或螺線管等的致動器以進行筆芯或書 寫體的反復送出之書寫用筆，由於使用大量的比重大之銅 線，故必須增加書寫用筆之重量。又’在進行反復送出動 作之際，這些致動器及附加在這些致動器之機構，會產生 對於使用者賦予不愉快感般的作動聲音或振動。 -4- 200533527 (2) 且’這些致動器由於其大小或重量的比例會有誤失， 故作爲書寫用筆必然會形成非實用的大小或重量。 因此’本發明係有鑒於上述情事而開發完成之發明， 其目的在於提供以根據溫度變化進行形狀變化之形狀記憶 • 合金材料作爲致動器來加以利用，小型、輕量且安靜，並 ，且將書寫體的反復送出或書寫體前端之突出自動化的書寫 用筆。 【發明內容】 本發明之書寫用筆，係爲了達到上述目的，具備以下 的特徵點。 申請專利範圍第1項之書寫用筆，係針對在軸筒內使 夾具構件在其軸線方向進退移動，由軸筒前端側將筆芯反 復送出之書寫用筆，其特徵爲：具備··使用根據溫度變化 其形狀可相反地變化之形狀記憶合金材料，藉由此形狀記 φ 憶、合金材料之形狀變化，使夾具構件朝前述軸線方向驅動 之夾具驅動部；及藉由控制前述夾具驅動部的形狀記億合 • 金材料的溫度，來使前述形狀變化產生之控制部， .前述控制部係藉由控制前述夾具驅動部的形狀記憶合 金材料的溫度，驅動夾具構件，以進行筆芯之反復送出。 申請專利範圍第2項之書寫用筆，係針對在軸筒內使 夾具構件在其軸線方向進退移動，由軸筒前端側將筆芯反 復送出之書寫用筆，其特徵爲：具備：使用根據溫度變化 其形狀可相反地變化之形狀記憶合金材料，藉由此形狀記 -5- 200533527 (3) 、 憶合金材料之形狀變化，使夾具構件朝前述軸線方向驅動 之夾具驅動部；及藉由控制前述夾具驅動部的形狀記憶合 金材料的溫度，來使前述形狀變化產生之控制部， 前述控制部係藉由控制前述夾具驅動部的形狀記憶合 • 金材料的溫度，使書寫體前進，以使前述書寫體前端由軸 .筒前端側突出。 申請專利範圍第3項之書寫用筆，係如申請專利範圍 0 第1或2項之書寫用筆，其中前述形狀記憶合金材料爲線 狀’高溫時與低溫時之長度不同。 申請專利範圍第4至6項之書寫用筆，係如申請專利 範圍第1至3項中任一項之書寫用筆，其中前述控制部係 控制流動於前述形狀記憶合金材料之電流，以控制前述形 狀記憶合金材料本身之發熱，使前述形狀變化產生。 申請專利範圍第7至9項之書寫用筆，係如申請專利 範圍第4至6項中任一項之書寫用筆，其中藉由控制部使 φ 電流流動於前述形狀記億合金材料用之操作用開關係設置 於較軸桶的外部中央更前端側之位置。 •由於本發明之書寫用筆具備以上結構，故能夠達到以 下之優良效果。 若根據申請專利範圍第1項之發明，其結構爲：具備 •使用根據溫度變化其形狀可相;又地變化之形狀記憶合金 材料，藉由此形狀記億合金材料之形狀變化，使夾具構件 朝前述軸線方向驅動之夾具驅動部；及藉由控制前述夾具 驅動部的形狀記憶合金材料的溫度，來使前述形狀變化產 -6 - 200533527 (4) 生之控制部’前述控制部係藉由控制前述夾具驅動部的形 狀記億合金材料的溫度，驅動夾具構件，以進行筆芯之反 復送出。因此，在本發明，因將前述形狀記億合金材料作 爲使夾具構件前進之致動器來使用，形狀記億合金材料比 • 起馬達或螺線管，不需使用銅之捲繞線，所以可達到輕量 且運動形態也比馬達或螺線管安靜，故能夠自動地、小 型、輕量且安靜地進行筆芯之反復送出。 φ 又’若根據申請專利範圍第2項之發明，因具備：使 用根據溫度變化其形狀可相反地變化之形狀記憶合金材料 ’藉由此形狀記憶合金材料之形狀變化，使夾具構件朝前 述軸線方向驅動之夾具驅動部；及藉由控制前述夾具驅動 部的形狀記憶合金材料的溫度，來使前述形狀變化產生之 控制部’前述控制部係藉由控制前述夾具驅動部的形狀記 憶合金材料的溫度，使書寫體前進，以使前述書寫體前端 由軸筒前端側突出，所以能夠與申請專利範圍第1項之發 Φ 明同樣地’自動地、小型、輕量且安靜地使原子筆般書寫 體前端突出。 - 又’若根據申請專利範圍第3項之發明，因前述形狀 記憶合金材料爲線狀，高溫時與低溫時之長度不同，所以 線狀的形狀記憶合金材料細且不佔場所，因而能容易地配 置於軸筒內。因此，針對於一般無法將軸筒增大致某種程 度以上粗細（例如8〜1 3 · 5 m m左右的外徑尺寸爲佳）之書 寫用筆，此線狀的形狀記憶合金材料之設置自由度高，也 容易設計，故可稱爲作爲致動器具有非常理想之適合性。 200533527 (5) 若根據申請專利範圍第4至6項之發明，因前述控制 部係控制流動於前述形狀記憶合金材料之電流，以控制前 述形狀記憶合金材料本身之發熱，使前述形狀變化產生， 所以除了形狀記億合金材料以外，不須要設置發熱體，因 • 而能夠有效地防止在將書寫用筆進行自動化之際所造成的 _ 大型化。 若根據申請專利範圍第7至9項之發明，因藉由控制 φ 部使電流流動於前述形狀記憶合金材料用之操作用開關係 設置於較軸桶的外部中央更前端側之位置，所以使用者可 在握持軸筒之狀態下按壓操作用開關，故即使不改變握持 書寫用筆，也能夠進行將筆芯反復送出的操作或使書寫體 突出，使用性高。 【實施方式】 以下，參照圖面，說明本發明之書寫用筆的一實施形 φ 態。 圖1至圖6係顯示實施發明的形態之一例的圖’圖中 -，賦予相同的符號之部分顯示相同物。 圖1係顯示本發明的實施形態之反復送出式書寫用筆 的縱斷面圖，圖2係顯示在該書寫用筆之外筒（軸筒）2 內，使反復送出夾具（夾具構件）4朝其軸線方向進退移 動，由外筒前端側的筆尖部3將筆芯（所謂的自動鉛筆芯 )反復送出之反復送出機構部分的擴大斷面圖。 書寫用筆之本體1係在其外周部配設有大致呈中空筒 200533527 (6) 狀之外筒2，此外筒2係在其前端部固裝有呈前端細小的 錐形之筆尖部3，在其後端部，可裝卸地設置有用來進行 收容於外筒2內的電池交換等之螺旋式蓋（亦稱爲「尾栓 j ) 2a ° > 再者，除此之外，外筒2亦可作成包含前述筆尖部3 之一體物。又，筆尖部3亦可藉由螺裝於外筒2加以固定 〇 φ 在外筒2的內部，具備有：作爲可朝線軸方向移動之 筆芯反復送出機構，爲了反復送出筆芯而形成於頭部之夾 持部4a呈可擴大縮小地分成2等份或3等份之筒狀，尾 部4b形成一體的同狀而插者於後述筆芯槽6之反復送出 夾具4;夾緊此反復送出夾具4的頭部之夾持部4a的夾緊 具5;在外筒2將反復送出夾具4可進退移動地支承之夾 具支承具15;收容使用前的筆芯之樹脂製等的筆芯槽6; 介插於夾具支承具1 5後端部及筆芯槽6前端部之間，將 φ 筆芯槽6及反復送出夾具4朝外筒2軸線方向的後方彈推 之夾具彈簧8 ;以及抵接於外筒2的前端部內部之後面， •使夾具支承具1 5貫通中央部而加以支承的接頭7。 -且，在外筒2的內部，於以通常所使用的材料例如樹 脂製等的筆芯槽6之後端部，設置有以適當的材料例如樹 脂製、鋁製等的按壓筒9 ;及將按壓筒9朝前方按壓（前 進驅動），將筆芯自動地反復送出之反復送出機構。 此反復送出機構，係具備：使用根據溫度變化其形狀 可相反地變化之線狀的形狀記憶合金材料L 1、L2，藉由 200533527 (7) 此形狀記憶合金材料L 1、L 2連接按壓筒9與接頭7之間 ，藉由此形狀記憶合金材料L 1、L2的形狀變化，將按壓 筒9、筆芯槽6、反復送出夾具4朝外筒2的軸線方向驅 動之夾具驅動部2 0 ;及藉由控制前述夾具驅動部2 0的線 > 狀形狀記憶合金材料L 1、L 2之溫度，使該形狀記憶合金 材料L 1、L2的長度變化（形狀變化）產生之控制部1 〇。 再者，前述形狀記憶合金材料L 1、L 2係爲線狀，高 溫時與低溫時的長度不同者。 又，前述控制部1 0係控制流動於前述形狀記憶合金 材料L 1、L 2之電流，以控制前述形狀記憶合金材料L 1、 L2的發熱，使前述形狀變化產生者。又，控制部1 〇係由 控制電路1 1與電源部（例如電池）1 2所構成。 藉由控制部1 〇在前述形狀記憶合金材料L 1、L2流動 電流用之開關（操作用開關）S W 1 7係設置於較外筒（軸 筒）2的外部中央更前端側之位置。即，在較外筒2的外 I 部中央更前端側之位置也就是在外筒2設有筆尖部3之前 端部，具備有使用者進行藉由控制部1 〇在前述形狀記憶 ，合金材料L 1、L2流動電流之操作用的開關SW 1 7 ’該開關 係進行前述控制電路1 1之導通•關閉（0N · 0FF )。 在本實施形態，開關S W 1 7係配置於外筒2的外部前 端部，這是例如爲了容易自動地反復送出筆芯’而設置於 較外筒2的外部中央更前端側之位置爲理想’例如亦可適 宜地選擇當使用者使用書寫用筆時’使用者的手指按壓外 筒2之位置或其附近的位置’加以配置開關s w 1 7。 -10- 200533527 (8) 且，在筆尖部3，由其前端至內部，藉由押入或鉚接 ，固定有當書寫時抗衡筆壓而支承筆芯之細長的前端管1 3 ，此前端管1 3係由筆尖部3的前端朝前方延伸。 在由此前端管1 3的中央部至後方部之內周部，具備 有由橡膠等的彈性材所構成之大致呈筒狀的保持夾具1 4， 該保持夾具係用來使受到前述反復送出夾具4所反復送出 的筆芯不會後退地，藉由某種程度的夾持力或握持力挾持 g 而加以保持者。 其次，針對上述結構之書寫用筆，說明關於因線狀的 形狀記億合金材料L 1、L2之長度的形狀變化所引起之筆 芯的反復送出動作。 通常，在於按壓式書寫用筆（例如按壓式自動鉛筆） ，爲了反復送出筆芯，而施壓外力（例如使用者的指力） ，按壓按壓筒9時，則因反復送出夾具4的夾持部4a被 夾緊具5所夾緊，所以欲供給的筆芯會在受到此夾持部4 a g 所夾持之狀態下前進。 當進一步前進如圖2所不的間隙δ的量時，由於夾緊 具5抵接於筆尖部3的內部之後面部1 6，僅反復送出夾具 4前進，使得夾持部4a擴大直徑’故解除的筆芯之夾持。 在此狀態下，當解除按壓筒9的前進動作時，在筆芯 停止之狀態下，反復送出夾具4受到夾具彈簧8朝後方的 彈推力而後退，但由反復送出夾具4之夾持部4a卡合於 夾緊具5之時間點起，摩擦卡合於筆芯，在使筆芯若干後 退之狀態，結束夾持。 -11 - 200533527 (9) 在此，進一步藉由反復進行按壓，筆芯一邊被保持夾 具14夾持卡合，一邊由前端管13被反復送出’在突出適 當的長度之時間點，結束反復送出動作。 作爲按壓上述按壓筒9的本實施形態之夾具驅動部2 0 的致動器來使用者，係2條線狀之形狀記憶合金材料L 1 、L2。一方的線狀形狀記憶合金材料L 1係連接於接頭7 的後端部之連接點P 1與按壓筒9的前端部之連接點P 2。 _ 又，另一方的線狀形狀記憶合金材料L2係連接於接頭7 的後端部之連接點P 3與按壓筒9的前端部之連接點P 4。 在這些連接點P 1至P4，接線有配線材（例如導線等）， 例如，連接於連接點P 1、P3之配線材係接線於後述的控 制部1 〇之端子A，而連接於連接點P2、P4之配線材係接 線於控制部1 0之端子B。 圖3 ( a )係顯示常溫狀態之線狀形狀記憶合金材L 1 料鬆弛的狀態之圖，圖3 ( b )係顯示高溫狀態之線狀形狀 φ 記憶合金材料L2收縮的狀態之圖。 在圖3(a)(僅記載有線狀形狀記憶合金材料L 1 ) ，線狀形狀記憶合金材料L 1本身處於常溫狀態，形成鬆 弛狀態，顯示按壓筒9未被按壓之狀態。 一方面，在圖3 ( b )，線狀形狀記憶合金材料L 1處 於此高溫狀態，由圖3 ( a )的鬆弛狀態，長度收縮，在形 狀記憶合金材料L 1產生強力的張力，顯示按壓筒9被按 壓之狀態。即，如圖3 ( b )所示，按壓筒9之位置係顯示 由未被按壓之位置，偏移「1」量之距離的狀態。 -12- 200533527 (10) 爲了使線狀形狀記憶合金材料L丨形成高溫狀態，而 在此線狀形狀3憶合金材料L 1流動預定時間之預定電流 。藉由所流動之電流値與線狀形狀記憶合金材料L 1之電 阻値，產生消耗電力，此消耗電力的一部分變換成熱能。 ‘ 藉由此所變換之熱能，線狀形狀記憶合金材料L 1本身形 ，成问丨皿狀知。箱由此商溫狀態，線狀形狀記憶合金材料 L1之長度收縮，產生張力。藉由此張力，按壓筒9被按 φ 壓形成按壓狀態，能使前述反復送出夾具4前進間隙5的 量。 再者’相反地爲了由圖3 ( b )之收縮狀態，形成如圖 3 ( a )所示之線狀形狀記憶合金材料L 1呈鬆弛狀態，僅 需將上述電流停止一定期間以上（作成非通電狀態），由 該高溫狀態冷卻至周圍環境的溫度，返回常溫狀態即可。 即，形狀記憶合金材料L 1能返回至鬆弛狀態。 如此，藉由反復生成高溫狀態與低溫狀態之2個狀態 φ ，形狀記憶合金材料L 1能自動地反復進行按壓及解除按 壓，能夠使筆芯反復送出一定長度的量。即，線狀形狀記 - 憶合金材料L 1係可發揮自動地將筆芯反復送出之書寫用 _ 筆的致動器的功能。 再者，線狀形狀記億合金材料，僅針對1條L 1進行 了說明，但亦可以配合按壓的張力與消耗電力’同時地驅 動適當的複數條形狀記億合金材料。又’在圖1及圖2 ’ 顯示使用2條的線狀形狀記億合金材料L 1、L2之例子。 再者，在以下的說明’針對使用複數個形狀記億合金材料 -13- 200533527 (11) 之情況，亦稱爲「形狀記憶合金材料群」。 在此，作爲線狀形狀記憶合金材料’可舉出 TOKICO RPORATION 製的生化金屬纖維（BioMetal· ;登錄商標）等。此材料係作爲致動器使用於各種應 域，例如使用於進行熱水、冷水的排出控制之閥。再 作爲除此以外之形狀記憶合金，能夠由現在爲眾所皆 材料適宜選擇來加以使用。 如上述說明，實施形態之書寫用筆，係進行筆芯 復送出動作，但爲了將已被反復送出之筆芯返回至前 1 3，而與通常的自動鉛筆同樣地，在進行反復送出動 ’使用者按壓筆芯，使其直接進入至前端管13，然後 筆芯之反復送出動作。 其次，針對上述結構之書寫用筆，以下說明關於 根據線狀形狀記憶合金材料群L (有複數條形狀記憶 材料）之筆芯的反復送出動作之控制部1 〇的動作。 圖4係顯示本發明之書寫用筆的控制部1 〇之方 〇 控制部1 G係具備：進行將供給至線狀形狀記憶 材料群L的電流導通·關閉的期間之控制的控制電g ;與對於存在於此控制電路丨1與控制部1 〇的外部之 形狀記憶合金材料群L供給電壓之電源部（以下稱爲 池」）12 。 又’控制電路1 1係由用來產生將供給至線狀形 憶合金材料群L的電流導通•關閉的驅動脈衝訊號之 例如 Fiber 用領 者， 知的 的反 端管 作中 停止 控制 合金 塊圖 σ也 各1 1 線狀 「電 狀記 計時 -14- 200533527 (12) 之 :形 •之 脈 )，， 狀 ) 間 憶 金 達 能 脈 T3 驅 常 生 長 ，等 電路1 8 ;與將電流供給至線狀形狀記憶合金材料群L 驅動電路1 9。 圖5係在控制電路1 1的計時電路1 8所產生的線击 狀記憶合金材料群L的驅動電流的〇N /0 F F期間所產当 -驅動脈衝訊號的時間流程圖。 .計時電路1 8係生成如圖5之時間流程所示之驅動 衝訊號。驅動脈衝訊號係具有，，等級H ( Hight :高等級 φ 之期間T2及，，等級L”（ Low :低等級）5之期間T3的 育旨 〇 此”等級Η”之期間T2係指驅動脈衝形成ON (導通 狀態，驅動電流流動於線狀形狀記憶合金材料群L之期 。在此期間T2，藉由前述驅動電流，使得線狀形狀記 合金材料群L形成高溫狀態，其結果，線狀形狀記憶合 材料群L之長度收縮，生成可進行按壓之充分的張力， 到按壓狀態。又，此期間T2之脈衝時間寬幅係設定成 φ 夠維持按壓狀態之充分的時間。 其次，經過驅動脈衝ON的期間T2後，生成驅動 ， 衝〇FF的期間T3。此驅動脈衝訊號的”等級L”之期間 _ 係爲解除在上述”等級Η ”所按壓的狀態之期間。即，此 動脈衝訊號之期間Τ3係由在期間Τ2呈高溫狀態冷卻至 溫狀態之期間，設定成能充分地解除按壓狀態。在上述 化金屬纖維，由其特性來看，設定成期間Τ3較期間Τ2 〇 在驅動電路1 9的電晶體施加驅動脈衝訊號之， -15- 200533527 (13) 級Η ’’之期間T2的脈衝，使電晶體丁^形成〇N狀態，形成 短路。因此’藉由由端子A所供給的電壓，以下述方程式 (1 )所示的電流流動於形狀記憶合金材料Ln ( L 1〜Ln : 11爲任意數）。藉此，在形狀記億合金材料Ln產生方程 式（2 )所示的消耗電力S，如上所述般，形狀記憶合金 材料Ln形成高溫狀態，其長度收縮。200533527 (1) IX. Description of the invention [Technical field to which the invention belongs] The present invention relates to a writing pen that automatically sends out a refill repeatedly or the front end of a writing body protrudes. [Prior art] In the past, a writing pen has a writing pen (pressing the back end of the writing pen, or rotating a part of the writing pen of Book I, to repeatedly send out a pencil lead of an automatic pencil or an atomic pen) Front prominence. In such writing pens, there have been many proposals or attempts to automate these operations in order to reduce the time labor for the user when pressing or rotating, or to reduce the pressing force of the user's thumb when pressing. . 1 A proposal to automate these operations includes using a motor such as an ultrasonic motor or a solenoid as a power source (hereinafter referred to as an actuator). The structure of the writing pen using the above actuator is disclosed in Patent Document 1 φ. The structure of a mechanical pencil using an ultrasonic motor is disclosed in Patent Document 2. • [Patent Document 1] Japanese Patent No. 3259435 < [Patent Document 2] Japanese Patent Laid-Open No. 2 00 1-1 02 84 However, actuators such as motors or solenoids are used for refills or writing bodies The writing pens that are repeatedly sent out have to increase the weight of the writing pens because they use a large amount of copper wire with a large specific gravity. In addition, when repeating the sending operation, these actuators and a mechanism attached to these actuators generate an operating sound or vibration that gives an unpleasant feeling to the user. -4- 200533527 (2) Moreover, these actuators may have errors due to their size or weight ratio. Therefore, writing pens will inevitably have an impractical size or weight. Therefore, the present invention has been developed in view of the above circumstances, and its purpose is to provide a shape memory and alloy material that change shape according to temperature changes and use it as an actuator. It is compact, lightweight, and quiet. Automatic writing pen that repeatedly sends out the writing body or the protruding automatic tip of the writing body. SUMMARY OF THE INVENTION The writing pen of the present invention has the following features in order to achieve the above-mentioned object. The writing pen in item 1 of the scope of patent application is a writing pen that moves the holder member forward and backward in the axial direction of the shaft cylinder, and repeatedly sends out the pen core from the front end side of the shaft cylinder. Its characteristics are as follows: A shape memory alloy material whose shape can be changed inversely according to a temperature change, and a fixture driving unit that drives the fixture member toward the aforementioned axial direction by recording the shape φme and the shape change of the alloy material; and controlling the aforementioned fixture driving unit The shape is recorded by the temperature of the gold material • the control part of the shape change. The control part controls the temperature of the shape memory alloy material of the jig driving part to drive the jig member to perform the refill. Send repeatedly. The writing pen in item 2 of the scope of patent application is a writing pen for moving the clamp member forward and backward in the axial direction of the shaft cylinder, and repeatedly sending out the pen core from the front side of the shaft cylinder. It is characterized by: A shape memory alloy material whose shape can be changed inversely as a function of temperature, the shape driving device -5- 200533527 (3), the shape change of the alloy material, and the fixture driving part for driving the fixture member in the aforementioned axis direction; and The temperature of the shape memory alloy material of the jig driving unit is controlled to control the shape change. The control unit controls the temperature of the shape memory alloy material of the jig driving unit to advance the writing body to The front end of the writing body is protruded from the front end side of the shaft. The writing pen in item 3 of the scope of patent application is the writing pen in item 1 or 2 of scope of patent application 0, wherein the shape memory alloy material is linear and the length is different at high temperature and low temperature. The writing pens in the scope of patent applications Nos. 4 to 6 are the writing pens in any of the scopes of patent applications No. 1 to 3, in which the aforementioned control unit controls the current flowing through the aforementioned shape memory alloy material to control The heat of the shape memory alloy material itself causes the shape change. The writing pens in the scope of patent applications Nos. 7 to 9 are the writing pens in any of the scopes of patent applications No. 4 to 6, in which the φ current is flowed through the control part to the alloy material of the shape described above. The open relationship for operation is provided at a position more forward than the outer center of the shaft barrel. • Since the writing pen of the present invention has the above structure, the following excellent effects can be achieved. According to the invention according to the first scope of the patent application, the structure is: equipped with a shape memory alloy material that can be shaped according to temperature changes; and a shape memory alloy material that changes according to the shape, so that the shape of the alloy material changes according to the shape, so that the fixture member A jig driving unit driving in the direction of the aforementioned axis; and controlling the temperature of the shape memory alloy material of the jig driving unit to make the shape change-6-200533527 The shape of the jig driving part described above is controlled by the temperature of the alloy material, and the jig member is driven to repeatedly send out the lead. Therefore, in the present invention, since the shape-keeping alloy material is used as an actuator for advancing the jig member, the shape-keeping alloy material does not require a copper winding wire compared to a motor or a solenoid. It is lightweight and quieter than motors or solenoids, so it can automatically, repetitively send out refills, small, lightweight, and quiet. φ Also, if the invention according to item 2 of the scope of the patent application is based on the use of a shape memory alloy material whose shape can be reversed according to temperature changes, the shape of the shape memory alloy material is changed so that the clamp member is oriented toward the aforementioned axis. A direction-driven jig driving unit; and a control unit that causes the shape change to occur by controlling the temperature of the shape memory alloy material of the jig driving unit; the aforementioned control unit controls the shape of the shape memory alloy material of the jig driving unit; The temperature advances the writing body so that the front end of the writing body protrudes from the front end side of the shaft cylinder, so the ballpoint pen can be automatically, compactly, lightweight, and quietly similar to the Φ of the first patent application. The front of the writing protrudes. -If the invention according to item 3 of the scope of patent application, because the aforementioned shape memory alloy material is linear, the length at high temperature is different from that at low temperature, so the linear shape memory alloy material is thin and does not occupy space, so it can be easily The ground is arranged in the shaft cylinder. Therefore, for writing pens that cannot generally increase the shaft barrel to a certain degree of thickness (for example, an outer diameter of about 8 to 13.5 mm is preferred), the freedom of setting of this linear shape memory alloy material It is high and easy to design, so it can be said that it has very ideal suitability as an actuator. 200533527 (5) If according to the inventions in claims 4 to 6, the aforementioned control unit controls the current flowing in the shape memory alloy material to control the heat generation of the shape memory alloy material itself, so that the shape change occurs, Therefore, it is not necessary to install a heating element in addition to the shape-keeping alloy material, which can effectively prevent the _ large size caused by the automation of writing pens. According to the inventions in claims 7 to 9 of the scope of the patent application, since the operating opening relationship for the aforementioned shape memory alloy material is controlled by the φ portion, it is set at a position more forward than the outer center of the shaft barrel, so it is used The user can press the operation switch while holding the shaft, so that the writing pen can be repeatedly sent out or the writing body can be protruded without changing the holding of the writing pen, which has high usability. [Embodiment] Hereinafter, an embodiment φ of a writing pen according to the present invention will be described with reference to the drawings. Figs. 1 to 6 are diagrams showing an example of a form of implementing the invention-In the figure, the same reference numerals are assigned to the same parts. FIG. 1 is a vertical cross-sectional view showing a repetitive writing-out writing pen according to an embodiment of the present invention, and FIG. 2 is a view showing the writing pen outside the cylinder (shaft cylinder) 2 to repeatedly feed the jig (clamp member) 4 An enlarged cross-sectional view of a repetitive feeding mechanism portion where the pen core (so-called mechanical pencil core) is repeatedly fed out by the nib portion 3 on the front end side of the outer cylinder while moving forward and backward in the axial direction. The main body 1 of the writing pen is provided with a generally hollow tube 200533527 (6) -shaped outer tube 2 on the outer peripheral portion, and the tube 2 is a tip portion 3 with a tapered tip at the front end. At its rear end, a screw-type cap (also referred to as "tail bolt j") 2a for detachably storing batteries and the like stored in the outer tube 2 is provided. 2 can be made into a body including the pen tip portion 3. The pen tip portion 3 can also be fixed to the outer cylinder 2 by screwing. Φ Inside the outer cylinder 2 is provided with a pen core that can be moved in the direction of the spool. The repetitive sending mechanism is designed to repeatedly send out the refill, and the clamping portion 4a formed on the head is divided into two equal parts or three equal parts, and the tail part 4b is formed in the same shape. Repeatedly sending out the jig 4 of the slot 6; clamps 5 that clamp the clamping part 4a of the head of the repeatedly sending out the jig 4; fixture support 15 that supports the forward and backward movement of the fixture 4 in the outer cylinder 2; Refill grooves 6 made of resin, etc. for the previous refills; Inserted at the rear end of the clamp holder 15 and the refill grooves 6 Between the ends, a φ refill groove 6 and a clamp spring 8 that repeatedly pushes the clamp 4 toward the rear of the outer cylinder 2 in the axial direction; and abuts against the inner rear surface of the front end of the outer cylinder 2; 1 5 A joint 7 which is supported through the central portion.-Inside the outer tube 2, an appropriate material such as resin is provided at the rear end of the lead groove 6 made of a commonly used material such as resin. , Aluminum, and other pressing cylinders 9; and the pressing cylinder 9 is pushed forward (forward drive), the repetitive feeding mechanism automatically repetitively sends out the refill. This repetitive feeding mechanism is equipped with: the shape can be reversed according to temperature changes The ground-shaped linear shape memory alloy material L 1, L2 is 200533527 (7) This shape memory alloy material L 1, L 2 is connected between the pressing cylinder 9 and the joint 7, and thus the shape memory alloy material L 1 , L2 changes in shape, the clamp driving unit 20 driving the pressing cylinder 9, refill groove 6, and repeatedly sending out the clamp 4 in the axial direction of the outer cylinder 2; and the line by controlling the aforementioned clamp driving unit 20 > Shape memory alloy materials L 1 and L 2 The control unit 1 generates a change in the length (shape change) of the shape memory alloy materials L 1 and L 2. Furthermore, the shape memory alloy materials L 1 and L 2 are linear, and are used at high temperature and low temperature. The length is different. Also, the control unit 10 controls the current flowing through the shape memory alloy materials L 1 and L 2 to control the heat generation of the shape memory alloy materials L 1 and L 2 and cause the shape change to occur. The control unit 10 is composed of a control circuit 11 and a power supply unit (for example, a battery) 12. The control unit 10 is a switch (operation switch) SW for flowing current to the shape memory alloy materials L 1 and L 2. 1 7 series is installed on the front end side of the outer center of the outer tube (shaft tube) 2. That is, at a position farther forward than the center of the outer part I of the outer cylinder 2, that is, the end before the pen tip 3 is provided on the outer cylinder 2, the user is provided with the control unit 10 to perform the shape memory and alloy material L through the control unit 10. 1. The switch SW 1 7 for operating the flowing current of L2 'This on relationship performs the on / off (0N · 0FF) of the aforementioned control circuit 1 1. In this embodiment, the switch SW 1 7 is disposed at the outer front end portion of the outer tube 2. For example, the switch SW 1 7 is preferably provided at the front end side more than the outer center of the outer tube 2 to automatically and repeatedly send out the refill. For example, when the user uses the writing pen, 'the position where the user's finger presses the outer cylinder 2 or the position near it' may be appropriately selected to configure the switch sw 1 7. -10- 200533527 (8) And, at the tip portion 3, from the front end to the inside, by pressing or riveting, an elongated front tube 1 3 supporting the pen core against the pen pressure when writing is fixed, and this front tube 1 The 3 series extends forward from the tip of the pen tip portion 3. The inner peripheral portion of the central portion to the rear portion of the front end tube 13 is thus provided with a substantially cylindrical holding jig 14 made of an elastic material such as rubber. The holding jig is used for receiving the above-mentioned repeated delivery. The refills repeatedly sent out by the jig 4 are not retracted, and are held by a certain degree of clamping force or holding force to hold g. Next, with respect to the writing pen having the above-mentioned structure, the repetitive feeding operation of the pen core caused by the shape change of the linear shape of the alloy material L1 and L2 will be described. Usually, a push-type writing pen (such as a push-type mechanical pencil) is used to repeatedly send out the refill, and an external force (such as a user's finger force) is applied. When the push-button 9 is pushed, the grip 4 is repeatedly sent out. The portion 4a is clamped by the clamper 5, so the refill to be supplied advances while being held by the clamping portion 4ag. When the gap δ is further advanced as shown in FIG. 2, since the clamper 5 abuts the inside of the pen tip portion 3 and the surface portion 16, only the clamp 4 is repeatedly sent out to advance, so that the diameter of the clamping portion 4 a is enlarged. Of the refill. In this state, when the forward movement of the press cylinder 9 is released, the repetitive sending out of the clamp 4 is reversed by the spring force of the clamp spring 8 when the refill is stopped, but the clamping portion 4a of the clamp 4 is repeatedly sent out. From the point of time when the clamp 5 is engaged, the friction is engaged with the refill, and the clamping is ended when the refill is retracted. -11-200533527 (9) Here, by repeatedly pressing, the refill is repeatedly sent out by the front end tube 13 while being held by the holding jig 14, and the repetitive delivery is finished at the time when the appropriate length protrudes. action. The user who acts as an actuator of the jig driving unit 20 of this embodiment that presses the pressing cylinder 9 is two linear shape memory alloy materials L 1 and L 2. One linear shape memory alloy material L 1 is connected to the connection point P 1 at the rear end portion of the joint 7 and the connection point P 2 at the front end portion of the pressing cylinder 9. _ Moreover, the other linear shape memory alloy material L2 is connected to the connection point P 3 at the rear end portion of the joint 7 and the connection point P 4 at the front end portion of the pressing cylinder 9. At these connection points P1 to P4, wiring materials (such as wires) are connected. For example, the wiring materials connected to connection points P1 and P3 are connected to terminal A of the control unit 10 described later and connected to the connection points. The wiring materials of P2 and P4 are connected to the terminal B of the control unit 10. Fig. 3 (a) is a diagram showing a state where the linear shape memory alloy material L1 at a normal temperature state is relaxed, and Fig. 3 (b) is a diagram showing a state where the linear shape φ memory alloy material L2 at a high temperature state is contracted. In Fig. 3 (a) (only the linear shape memory alloy material L1 is shown), the linear shape memory alloy material L1 itself is at a normal temperature state and is in a relaxed state, showing a state where the pressing cylinder 9 is not pressed. On the one hand, in FIG. 3 (b), the linear shape memory alloy material L1 is at this high temperature state, and the length is contracted from the relaxed state of FIG. 3 (a), and a strong tension is generated in the shape memory alloy material L1, which shows the pressing The tube 9 is pressed. That is, as shown in FIG. 3 (b), the position of the pressing cylinder 9 indicates a state of being shifted by a distance of "1" from the position not pressed. -12- 200533527 (10) In order to make the linear shape memory alloy material L 丨 form a high temperature state, the linear shape memory material L 1 flows a predetermined current for a predetermined time. The electric current 値 and the electric resistance 线 of the linear shape memory alloy material L 1 generate power consumption, and a part of the power consumption is converted into thermal energy. ‘With this transformed thermal energy, the linear shape memory alloy material L 1 itself is shaped, and it is known that it is shaped like a dish. As a result of the commercial condition, the length of the linear shape memory alloy material L1 shrinks and tension is generated. With this tension, the pressing cylinder 9 is pressed into the pressing state by φ, and the aforementioned repeated feeding of the jig 4 can be advanced by the gap 5 amount. Furthermore, on the contrary, in order to form the linear shape memory alloy material L 1 shown in FIG. 3 (a) into a relaxed state from the contracted state of FIG. 3 (b), it is only necessary to stop the above current for a certain period of time (make non- Power-on state), cooling from the high temperature state to the temperature of the surrounding environment, and returning to the normal temperature state. That is, the shape memory alloy material L 1 can return to a relaxed state. In this way, by repeatedly generating the two states φ of the high temperature state and the low temperature state, the shape memory alloy material L 1 can be automatically repeatedly pressed and released, and the refill can be repeatedly sent out for a certain length. In other words, the linear shape memory-memory material L 1 can function as an actuator for a writing pen that automatically sends the refill out repeatedly. In addition, although the linear shape memory alloy material has been described with respect to only one L1, an appropriate plurality of shape memory alloy materials can be driven simultaneously in accordance with the pressing tension and power consumption '. In addition, Fig. 1 and Fig. 2 'show examples in which two linear shapes of the alloy materials L1 and L2 are used. In addition, in the following description ', when a plurality of shape memory alloy materials are used -13- 200533527 (11), it is also referred to as a "shape memory alloy material group". Here, as the linear shape memory alloy material ', biochemical metal fibers (BioMetal; registered trademark) made by TOKICO RPORATION can be cited. This material is used as an actuator in various applications, such as a valve for controlling the discharge of hot and cold water. As another shape memory alloy, it can be suitably selected and used from materials that are now widely available. As described above, the writing pen of the embodiment performs a re-feeding operation of the refill, but in order to return the refill that has been repeatedly sent back to the top 1, it is repeatedly sent out like a normal mechanical pencil. The user presses the refill so that it directly enters the front end tube 13, and then repeatedly sends out the refill. Next, with regard to the writing pen having the above-mentioned structure, the operation of the control unit 10 regarding the repetitive feeding operation of the lead according to the linear shape memory alloy material group L (with a plurality of shape memory materials) will be described below. 4 is a diagram showing the control part 10 of the writing pen of the present invention. The control part 1 G is provided with: a control power g that controls the period during which the current supplied to the linear shape memory material group L is turned on and off; And a power supply unit (hereinafter referred to as a pool) 12 that supplies a voltage to the shape memory alloy material group L existing outside the control circuit 1 and the control unit 10. Also, the control circuit 11 is used to generate a driving pulse signal for turning on and off the current supplied to the linear shape memory alloy material group L. For example, a fiber end user stops the control of the alloy block during the operation of a known reverse tube. The graph σ is also 1 1 linear "Electric state chronograph -14- 200533527 (12): shape • pulse),, shape) Jin Yi Jin Daneng pulse T3 drives the growth, waiting for the circuit 1 8; and the current The driving circuit 19 supplied to the linear shape memory alloy material group L is shown in FIG. 5 during a period of 0N / 0 FF of the driving current of the linear striking memory alloy material group L generated by the timing circuit 18 of the control circuit 11. Timing flow chart of the production-driving pulse signal. The timing circuit 18 generates the driving impulse signal as shown in the time flow of Fig. 5. The driving pulse signal has, level H (Hight: high-level period T2 and , Level L "(Low: Low level) 5 period T3 education purpose 0" Level Η "period T2 refers to the drive pulse formation ON (on state, driving current flows in the linear shape memory alloy material group L Period. During this period T2, by the aforementioned The dynamic current causes the linear shape memory alloy group L to form a high-temperature state. As a result, the length of the linear shape memory material group L shrinks, generating sufficient tension to be pressed to the pressed state. Moreover, during this period T2 The pulse time width is set to φ sufficient time to maintain the pressed state. Secondly, after the driving pulse ON period T2, the driving is generated and the period T3 of the 0FF is generated. The "level L" period of this driving pulse signal_ It is a period during which the state pressed by the above-mentioned "level Η" is released. That is, the period T3 of this pulse signal is a period during which the period T2 is cooled from a high temperature state to a warm state, and is set to sufficiently release the pressed state. According to the characteristics of the above-mentioned metalized fiber, the period T3 is set to be a period of time T2, and the period of time T2 is applied to the transistor of the driving circuit 19, -15-200533527 (13) level '', the period T2, The transistor D is brought into an ON state and a short circuit is formed. Therefore, 'the voltage shown by the following equation (1) flows through the shape memory alloy material by the voltage supplied from the terminal A. Material Ln (L 1 ~ Ln: 11 is an arbitrary number). As a result, the power consumption S shown in equation (2) is generated in the shape memory alloy material Ln. As described above, the shape memory alloy material Ln forms a high temperature state. Its length shrinks.
V〇/Rn ( 1 )V〇 / Rn (1)
在此’ V〇爲電源部12之電壓，In爲流動於第n個形 狀記憶合金材料Ln之電流値。又，Rn爲第η個形狀記憶 合金材料Ln之電阻値。 一方面’驅動脈衝爲” L，’之期間係驅動電路1 9之電晶 體Tr形成〇Ff狀態，流動於各線狀形狀記憶合金材料Ln Φ 之電流爲0，各形狀記憶合金材料L的長度鬆弛。 如上所述，藉由驅動脈衝訊號的”等級H”訊號之丁2 - 期間與’’等級L”訊號之T3期間，形成1個循環，藉由反復 .進行此循環，使得可自動地進行按壓及按壓解除，筆芯被 反復送出。 筆芯開始反復送出之時間點係藉由將設置於控制部1 0 的外部之開關s W 1 7導通（ON ) ’對於計時電路1 8產生 開始•停止訊號之，，等級H ”訊號。此”等級H"訊號係形成 期間T 2之開始時間點。然後’筆芯由前端管1 3被反復送 -16- 2005*33527 (14) 出適當的長度時，藉由將開關SW17關閉（〇FF) ’以產 生”等級L π，停止上述循環’結束筆芯反復送出。 如上所述，此上述開關s w 1 7係由於受到使用者’適 宜地使用，故期望設置於由外筒2外側的中央部更靠近前 - 端部之容易使用的位置。 再者，亦可作成：當計數循環數，達到預疋的δ十數數 目後，自動地結束反復送出之電路結構。 φ 在以上說明過的實施形態，說明了如Τ 2、Τ 3般，一 定期間”等級Η或L，，般之直流式控制電路的結構’但亦可 例如在Τ2的期間，進行藉由細小的脈衝寬幅反復進行 ΟΝ/OFF也就是PWM般之驅動。亦有與形狀記憶合金材料 L的溫度上升時間之均衡，但藉由進行如此的驅動’亦可 謀求電源部（具有電池）1 2之小型化。 圖6係顯示控制電路U之具體電路例子。 圖6係藉由以電容器、電阻及NAND型邏輯1C所構 Φ 成的無定態複振器，來構成之控制電路11。當開關SW17 導通（ON )時，此無定態複振器自自激振盪，產生周期 - Τ1之脈衝。此時，ON期間也就是Τ1之時間寬幅係設定 可變電阻器R2後加以設定。IC1的輸出Out係輸入至IC4 ，進行邏輯變換與脈衝成形，由IC4輸出，形成驅動脈衝 訊號。此驅動脈衝係供給至驅動電路1 9之電晶體Tr，驅 動形狀記億合金材料L。本電路的邏輯1C係由於採用 C Μ Ο S之IC，故在初期狀態，即使投入來自於電源部12 之電源Vcc，在該投入的過度期，由IC4也不會產生無用 -17- 200533527 (15) 處之0N訊號。因此，不會多餘地驅動形狀記憶合金材料 L·。如此，當開關S W1 7導通（〇N )時，一定也如圖5所 示般，由開始產生驅動脈衝訊號’而開始循環。 再者，省略上述控制電路11的#時電路18之發振動 作的詳細說明。又，本實施形態之計時電路1 8係以電容 器與根據電阻之時間常數、與邏輯iC的輸入疋限（ t h r e s h ο 1 d )以決定計時時間之類比式5十日寸電路’但亦可作 爲根據數位計數電路等之計時電路結構。 在以上所說明之實施形態’詳細地說明了作爲夾具體 ，藉由環狀的夾緊具5夾緊反復送出夾具4的頭部之夾持 部4 a，以進行筆芯的夾持及開放之反復送出夾具4 ’但本 發明亦可適用於使用採用球體的球體夾具體代替環狀之夾 緊具5的書寫用筆（關於球體夾具體，參照例如日本特開 昭60-94396號公報）。 以下，說明關於球體夾具體之機構及其動作槪要。 球體夾具體係由承受朝後方彈推的夾具彈簧，並且承 受藉由按壓動作所賦予的推力之底端部；藉由變換該夾具 彈簧的軸方向之力所獲得的中心方向的力加以夾緊，在外 面能配設球體地具有球體承受座之夾持部；及連結上述兩 部之中心腕部所構成。 藉由上述結構’球體夾具體係在球體夾具體的夾持部 外面形成球體承受座，藉由內裝於具有傾斜導引面的外筒 內之夾具彈簧，朝後方彈推。藉此，收容於球體承受座內 之球體係被按壓於外筒的傾斜導引面。夾持部係藉由變換 -18- 200533527 (16) 上述夾具彈簧的軸方向的力所獲得之夾緊力，來夾持筆芯 〇 在此，爲了反復送出筆芯，當施加外力按壓按壓筒9 時，則欲供給的筆芯在受到此夾持部所夾持之狀態下前進 〇 當進一步前進時，則被按壓於外筒的傾斜導引面之球 體朝球體座方向移動，收容於球體承受座內’而變換夾具 Φ 彈簧的軸方向之力所獲得的夾緊力消失。因此’夾持部擴 大直徑，解除筆芯之夾持狀態。 在此狀態下，當解除按壓筒9的前進迪棟時’則在筆 芯停止的狀態下，球體夾具體受到夾具彈簧朝後方之彈推 力而後退。然後，被收容於球體夾具體的夾持部之球體承 受座的球體被按壓於外筒的傾斜導引面，返回至上述最初 之狀態，在使筆芯若干後退之狀態下完成夾持。 作爲上述外力，採用使用了線狀形狀記憶合金材料 φ L 1之致動器，能將筆芯作動地反復送出。 在以上所說明之實施形態，詳細地說明了藉由按壓以 -將筆芯反復送出之反復送出式書寫用筆（例如按壓式自動 鉛筆），但本發明亦可適用於：如圖7所示的其他實施形 態般，使如原子筆般之書寫體前端自動地突出的按壓式原 子筆等的書寫用筆。 在其他實施形態，如圖7所示，爲被稱爲使原子筆芯 (書寫體）21在外筒2內前進後退移動之按壓式原子筆的 書寫用筆。 -19- 200533527 (17) 圖7所示的書寫用筆，係針對在形成其本體1 A外周 的外筒（軸筒）2內，使原子筆芯2 1朝其軸線方向前進， 由外筒2前端側的筆尖部22使原子筆芯2 1的前端（原子 筆尖）21a突出之按壓式原子筆’其具備有：使用根據溫 . 度變化其形狀可相反地變化之形狀記憶合金材料L 1、L2 ，藉由此形狀記憶合金材料L 1、L2之形狀變化，使原子 筆芯2 1朝前述軸線方向驅動之書寫體驅動部2 3 ;及藉由 $ 控制前述書寫體驅動部23的形狀記憶合金材料L 1、L2的 溫度，來使前述形狀變化產生之控制部1 〇， 前述控制部係藉由控制前述書寫體驅動部23的形狀 記億合金材料L 1、L2的溫度，使原子筆芯2 1前進，而使 其前端21a由外筒2的前端側之筆尖部22突出者。 控制部1 〇係對於與上述說明及前述圖1至圖6所示 的實施形態相同之部分，賦予相同的符號。 又，筆尖部2 2係全體形成前端細，在軸中心形成有 ^ 使原子筆芯21之前端21a進退移動之孔22a。 又，書寫體驅動部2 3係爲與前述實施形態的前述夾 -具驅動部20相同之結構，除了藉由前述圖5的期間T2與 .期間T3的1個循環使書寫體也就是原子筆芯2 1突出1次 以形成書寫狀態以外，其餘的動作也皆相同。因此，針對 與前述夾具驅動部2 0相同的部分賦予相同的符號，省略 其說明。再者，在原子筆芯2 1之前端2 1 a的突出狀態下 保持或因應需要解除保持之保持•解除機構係能採用按壓 式原子筆的習知之各種保持·解除機構，省略其圖示及說 -20- 200533527 (18) 明。 在此其他實施形態之按壓式原子筆，以藉由控制 在書寫體驅動部2 3的形狀記憶合金材料L 1、L 2流動 以控制溫度，來與前述實施形態同樣地使原子筆芯2 進，使前述原子筆芯2 1之前端2 1 a由外筒2前端側 尖部22突出的方式，在前進狀態下藉由保持·解除 保持而可進行書寫。 因此，若根據此其他實施形態之按壓式原子筆， 自動、小型、輕量、且安靜地使原子筆般書寫體前端 〇 再者，本發明之書寫用筆係不限於上述實施形態 他實施形態，在不超出本發明的主旨之範圍內可進行 變更。 在上述實施形態，作爲形狀記憶合金材料使用線 ’但作爲本發明之形狀記憶合金材料，當然不限於線 ’除了線狀以外，能夠採用棒狀、板狀、異形狀等各 樣者。 又’在藉由溫度控制形狀記憶合金材料，以進行 變化之際’除留在形狀記憶合金材料流動電流以外， 狀記憶合金材料附近等設置發熱體，藉由此發熱體之 ’來溫度控制形狀記憶合金材料爲理想的。 【圖式簡單說明] Η 1係顯示本發明之書寫用筆的一實施形態之縱 部1〇 電流 1前 之筆 機構 能夠 突出 或其 各種 狀者 狀者 式各 溫度 在形 發熱 斷面 -21 · 200533527 (19) 圖。 圖2係圖1的一實施形態之書寫用筆的反復送出機構 部分之擴大斷面圖。 圖3 ( a )係顯示常溫狀態之線狀形狀記憶合金材料鬆 弛的狀態之圖，圖3 ( b )係顯示高溫狀態之線狀形狀記 合金材料收縮的狀態之圖。 圖4係顯示本發明之書寫用筆的控制部之方塊圖。 圖5係控制在控制電路的計時電路所產生的線狀形狀 記憶合金材料的驅動電流之驅動脈衝的時間流程圖。 圖6係控制部的控制電路之具體電路圖。 圖7係顯示本發明的書寫用筆之其他實施形態的縱斷 面圖。 【主要元件符號說明】 1 本體 2 外筒（軸筒） 2a 蓋（尾栓） 3 筆尖部 4 反復送出夾具 4 a 夾持部 4b 尾部 5 夾緊具 6 筆芯槽 7 接頭 -22- 200533527 (20)Here, 'V0 is the voltage of the power source section 12, and In is the current 値 flowing through the n-th shape memory alloy material Ln. Rn is the resistance 値 of the n-th shape memory alloy material Ln. On the one hand, the period of the “driving pulse is“ L, ”means that the transistor Tr of the driving circuit 19 forms an 0Ff state, the current flowing through each linear shape memory alloy material Ln Φ is 0, and the length of each shape memory alloy material L is relaxed. As described above, a cycle of "Division H" signal of the "Level H" signal and T3 period of the "Level L" signal are formed by driving the pulse signal, and the cycle can be performed automatically by repeating this cycle. Pressing and releasing, the refill is sent out repeatedly. The time when the refill starts to be repeatedly sent is by turning on the external switch s W 1 7 provided on the control section 10 'ON' for the timing circuit 18 to generate a start / stop signal, level H ”signal. Here The "level H" signal is the starting point of T 2 during the formation period. Then 'the refill is repeatedly sent from the front tube 1 to 3-16-2005 * 33527 (14) when the appropriate length is reached, the switch SW17 is turned off (〇FF)' to generate "level L π, stop the above cycle" end The refill is repeatedly sent out. As mentioned above, since the above-mentioned switch sw 1 7 is suitable for use by the user, it is desirable to be placed in an easy-to-use position closer to the front-end portion from the central portion outside the outer cylinder 2. Alternatively, it can also be made: when the number of counting cycles reaches the pre-determined δ ten number, the circuit structure of repeated sending is automatically ended. Φ The embodiment described above has explained that, like T 2 and T 3, it must be "Period" level Η or L, the structure of a direct-current type control circuit ', but it is also possible to repeatedly perform ON / OFF, ie, PWM-like driving, with a small pulse width during the period of T2. There is also a balance with the temperature rise time of the shape memory alloy material L. However, by driving this way, the size of the power supply unit (with the battery) 12 can be reduced. FIG. 6 shows a specific circuit example of the control circuit U. Fig. 6 is a control circuit 11 constituted by an amorphous state vibrator composed of a capacitor, a resistor, and a NAND-type logic 1C. When the switch SW17 is turned on, the non-stationary vibrator self-oscillates and generates a pulse of period-T1. At this time, the ON period, that is, the time width of T1, is set after setting the variable resistor R2. The output Out of IC1 is input to IC4 for logic conversion and pulse shaping. The output from IC4 forms the driving pulse signal. This driving pulse is supplied to the transistor Tr of the driving circuit 19 to drive the alloy material L in shape. The logic 1C of this circuit is based on the IC of IC. Therefore, in the initial state, even if the power supply Vcc from the power supply unit 12 is input, IC4 will not be useless during the excessive period of the input. 17- 200533527 ( 15) Signal of 0N everywhere. Therefore, the shape memory alloy material L · is not driven excessively. In this way, when the switch SW1 is turned on (ON), as shown in Fig. 5, the cycle must be started by starting to generate the driving pulse signal '. In addition, a detailed description of the vibration operation of the #time control circuit 18 of the control circuit 11 described above is omitted. In addition, the timing circuit 18 of this embodiment is an analogous 50-day-inch circuit using a capacitor and a time constant based on resistance and an input limit (thresh ο 1 d) of the logic iC to determine the timing time, but it can also be used as According to the timing circuit structure of a digital counting circuit and the like. In the embodiment described above, as the clamp, the clamp portion 4 a of the head of the jig 4 that is repeatedly fed out is clamped by the ring-shaped clamp 5 to clamp and open the refill. The jig 4 is repeatedly sent out, but the present invention is also applicable to a writing pen using a ball clamp using a ball instead of a ring-shaped clamp 5 (for details of the ball clamp, refer to, for example, Japanese Patent Application Laid-Open No. 60-94396). . In the following, the specific mechanism of the ball clamp and the main points of its operation will be described. The ball clamp system is clamped by a clamp spring that springs back and pushes the bottom end of the thrust given by the pressing action; the center direction force obtained by changing the axial force of the clamp spring is clamped, A sphere can be arranged on the outside, a clamping portion having a sphere receiving seat, and a central wrist portion connecting the two portions. With the above structure 'ball clamp system, a ball receiving seat is formed on the outside of the specific clamping part of the ball clamp, and it is pushed backwards by a clamp spring built into an outer cylinder with an inclined guide surface. Thereby, the ball system accommodated in the ball receiving seat is pressed against the inclined guide surface of the outer cylinder. The clamping part is used to clamp the refill by changing the clamping force obtained by changing the axial force of the above-mentioned clamp spring. 18- 200533527 (16) Here, in order to repeatedly send out the refill, when the external force is applied to press the press cylinder At 9 o'clock, the refill to be supplied advances under the state of being held by this clamping part. When further advancing, the sphere pressed on the inclined guide surface of the outer cylinder moves toward the sphere seat and is accommodated in the sphere The clamping force obtained by changing the axial force of the Φ spring of the clamp ′ in the seat disappears. Therefore, the 'clamping portion is enlarged in diameter and the clamping state of the refill is released. In this state, when the forward movement of the pressing cylinder 9 is released, the ball clamp is retracted by the spring force of the clamp spring in the state where the refill is stopped. Then, the sphere received in the sphere receiving seat of the specific clamping portion of the sphere clamp is pressed against the inclined guide surface of the outer cylinder to return to the original state described above, and the clamping is completed with the refill slightly retreated. As the external force, an actuator using a linear shape memory alloy material φ L 1 can be used to repeatedly send out the lead. In the embodiment described above, a repetitive writing pen (for example, a push-type mechanical pencil) in which the refill is repeatedly sent out by pressing is described in detail, but the present invention is also applicable to: as shown in FIG. 7 As in other embodiments, a writing pen such as a press-type ball pen that automatically protrudes the tip of a writing body like a ball pen. In another embodiment, as shown in FIG. 7, it is a writing pen called a push-type ballpoint pen that moves the ballpoint pen (writing body) 21 forward and backward in the outer cylinder 2. -19- 200533527 (17) The writing pen shown in Fig. 7 is aimed at advancing the atomic pen core 21 in the outer cylinder (shaft cylinder) 2 forming the outer periphery of the main body 1 A from the outer cylinder. 2 The tip portion 22 on the front end side is a press-type ball pen that protrudes the front end (atom pen tip) 21a of the ball pen core 2 and includes a shape memory alloy material L 1 that can be reversely changed in shape depending on temperature and temperature. , L2, by the shape change of the shape memory alloy material L1, L2, the writing body driving portion 2 3 driving the ballpoint pen 21 in the aforementioned axial direction; and controlling the shape of the writing body driving portion 23 by $ The temperature of the memory alloy materials L 1 and L 2 is used to control the shape of the shape change unit 10. The control unit records the temperature of the alloy material L 1 and L 2 by controlling the shape of the writing body driving unit 23 so that the atoms The refill 21 is advanced so that the tip 21a thereof protrudes from the tip portion 22 on the tip side of the outer cylinder 2. The control unit 10 assigns the same reference numerals to the same portions as the above description and the embodiment shown in Figs. 1 to 6 described above. In addition, the tip portion 22 is formed with a thin front end as a whole, and a hole 22a for moving the front end 21a of the ballpoint pen core 21 forward and backward is formed at the center of the shaft. In addition, the writing body driving section 23 has the same structure as the clip-tool driving section 20 of the foregoing embodiment, except that the writing body is also a ball pen by one cycle of the period T2 and the period T3 in FIG. 5 described above. Except that the core 21 protrudes once to form a writing state, the other operations are the same. Therefore, the same reference numerals are assigned to the same parts as those of the jig driving unit 20 described above, and the descriptions thereof are omitted. In addition, the holding and releasing mechanism that holds or releases the holding in the protruding state of the front end 2 1 a of the ballpoint pen core 2 1 is a conventional holding and releasing mechanism that can use a press-type ballpoint pen, and its illustration and illustration are omitted. Say -20- 200533527 (18) Ming. In the push-type ballpoint pen of the other embodiment, the shape memory alloy material L 1 and L 2 are controlled to flow in the writing body driving portion 23 to control the temperature. In such a manner that the front end 2 1 a of the ball-point pen core 2 1 protrudes from the tip 22 on the front end side of the outer cylinder 2, writing can be performed by holding and releasing holding in the forward state. Therefore, if the press-type ballpoint pen according to this other embodiment automatically, compactly, lightweight, and quietly makes the front end of a ballpoint-like writing body. Furthermore, the writing pen system of the present invention is not limited to the other embodiments described above. Changes can be made without departing from the spirit of the present invention. In the above-mentioned embodiment, the wire is used as the shape memory alloy material. However, as the shape memory alloy material of the present invention, it is needless to say that the wire may be rod-shaped, plate-shaped, or other shapes. In addition, when the shape memory alloy material is controlled by temperature to change it, in addition to the current flowing in the shape memory alloy material, a heating element is provided near the shape memory alloy material, and the shape of the temperature is controlled by the heating element. Memory alloy materials are ideal. [Brief description of the drawings] Η 1 is a longitudinal section 10 showing the embodiment of the writing pen of the present invention. The pen mechanism before the electric current 1 can protrude or its various shapes can be shaped at different temperatures. 200533527 (19) Figure. Fig. 2 is an enlarged cross-sectional view of a portion of a repetitive feeding mechanism of the writing pen according to the embodiment of Fig. 1; Fig. 3 (a) is a diagram showing a relaxed state of the linear shape memory alloy material in a normal temperature state, and Fig. 3 (b) is a diagram showing a contracted state of the linear shape memory material in a high temperature state. Fig. 4 is a block diagram showing a control section of a writing pen according to the present invention. Fig. 5 is a time flow chart of a driving pulse for controlling a driving current of a linear shape memory alloy material generated by a timing circuit of a control circuit. Fig. 6 is a specific circuit diagram of a control circuit of a control unit. Fig. 7 is a longitudinal sectional view showing another embodiment of a writing pen according to the present invention. [Description of main component symbols] 1 Body 2 Outer cylinder (shaft cylinder) 2a Cover (tail bolt) 3 Pen tip 4 Repeatedly sending out the clamp 4 a Clamping part 4b Tail 5 Clamping device 6 Refill groove 7 Connector-22- 200533527 ( 20)
8 夾具彈簧 9 按壓筒 10 控制部 11 控制電路 12 電源部（電池） 13 前端管 14 保持夾具 15 夾具支承具 16 後面部 17 開關S W 18 計時電路 19 驅動電路 20 夾具驅動部 2 1 原子筆芯（書寫體） 2 1a 前端 22 筆尖部 22a 孔 23 書寫體驅動部 A 端子 LI，L2 形狀記憶合金材料 P 1，P2，P3，P4 連接點 Tr 電晶體 -23-8 Fixture spring 9 Pressing cylinder 10 Control section 11 Control circuit 12 Power supply section (battery) 13 Front tube 14 Holding fixture 15 Fixture support 16 Rear section 17 Switch SW 18 Timing circuit 19 Drive circuit 20 Fixture drive section 2 1 Ball pen core ( (Writing body) 2 1a front end 22 pen tip 22a hole 23 writing body driving part A terminal LI, L2 shape memory alloy material P 1, P2, P3, P4 connection point Tr transistor 23-