1290079 (1) 九、發明說明 【發明所屬之技術領域】 本發明係關於一種刀刃磨銳器。 【先前技術】 作爲一種刀刃磨銳器，例如日本專利未審公開第 2004-90 1 69號案中揭示一種裝置，具有一 V形的磨銳溝 槽，此溝槽係用於使一刀刃的刀片邊緣擠壓且緊靠著此溝 槽來滑動。更明確地，本專利案所揭示的刀刃磨銳器具有 多數磨銳條，這些磨銳條係排列成以V字形彼此相交。這 些磨銳條組成了硏磨表面之間的V字形磨銳溝槽，其中硏 磨表面係形成於每一磨銳條的兩側之一側內。根據此專利 文件的刀刃磨銳器，由於每個磨銳條均具有彈性，所以刀 片邊緣的毛邊會受到硏磨表面的擠壓，且當刀刃正在磨銳 時，刀片邊緣會被拉直。因此，刀刃可以在短時間內加以 磨銳。 在磨銳刀刃的刀片邊緣之過程中，在刀刃的尖端部中 形成有一部位，稱爲最終斜角，其具有等腰三角形的剖面 。此最終斜角的完成方式最好能使每一側表面均塑形成爲 一渾圓的凸表面。這是因爲假如最終斜角的兩側面被塑形 成扁平表面的話，則在切割的時候，對於被切割物體的分 離性就會降低，如此就變得難以操作刀刃。而且，由於最 終斜角很薄，所以很容易在刀刃中產生一刻痕，導致刀刃 的鋒利程度在短時間之內就變差。因此’刀刃需要經常作 嫌4 _ (2) 1290079 磨銳的動作。 【發明內容】 本發明的一目的是要提供一種具有簡單結構的刀刃磨 ，銳器，可用於磨銳一刀刃，使得此刀刃具有極佳的操作性 ，且其鋒利的程度能保持一段很長的時間。 爲了達成上述目的，本發明的刀刃磨銳器具有至少兩 φ 磨銳條，係在其寬度方向上彼此緊貼，且在一交叉點上彼 此相交。這些磨銳條是可以彈性變形的，且包括多數伸展 部，這些伸展部係從交叉點伸展到磨銳條的一端上，且展 開而形成具有一頂點角的V字形溝槽。多數硏磨表面係分 別形成於這些伸展部的一表面上，該等硏磨表面可形成該 溝槽的側表面；且具有彎曲機構，當刀刃的一刀片邊緣在 該溝槽內進行磨銳時，用以彎曲該等硏磨表面，以增大頂 點角。 Φ 根據本發明的刀刃磨銳器，當刀刃的刀片邊緣受到擠 壓而緊靠著溝槽時，這些磨銳條是可以彈性變形，且每個 ~ 硏磨表面均彎曲成一凹面形狀，而增大頂點角。當刀刃在 I 具有增大的頂點角之溝槽內產生相對移動時，則在刀刃邊 緣的一尖端內所產生的一最終斜角，其形成方式能使其兩 側面均具有一凸面形狀，如此可增大最終斜角的角度。 藉由本發明的刀刃磨銳器以此方式加以磨銳的刀刃可 以增強對被切割物體的分離性，且由於刀片邊緣的尖端內 所形成的最終斜角之兩側面均被磨銳成凸面形狀，而產生 -5- (3) 1290079 極佳的操作性。這樣的刀刃可使最終斜角變得較厚，如此 很難在刀刃上產生一刻痕，因此刀刃的鋒利程度可以持續 一段很長的時間。 在一較佳型態中，彎曲機構包括用於固定磨銳條的另 一端之固定構件以及多數擋止件，這些擋止件係用於與磨 銳條產生接觸，而限制溝槽的最大開口寬度。 在一較佳型態中，刀刃磨銳器進一步具有一殼體，係 用於容納該等磨銳條且具有一在磨銳條寬度方向上伸展的 狹縫。當刀片邊緣受到磨銳時，此狹縫可接受刀刃的刀片 邊緣在刀刃的刀片長度方向上產生移動。 在一較佳型態中，殼體形成爲一箱型形狀，且具有一 壁，壁中形成有一直線形狀的狹縫以及作爲擋止件之用的 內壁表面。 在一較佳型態中，四個或更多的磨銳條可以沿著其寬 度方向交錯地排列。 在一較佳型態中，刀刃磨銳器進一步具有一外殼體， 可容納上述殻體作爲一內殼體，使得內殼體可以從外殼體 處突出，且在刀刃的磨銳期間作爲一固持部。 在一較佳型態中，多數該溝槽係繞著一旋轉軸徑向地 排列，以便與旋轉軸整體地旋轉，且該等磨銳條的伸展部 可在旋轉軸的一徑向朝外方向上展開，且刀刃磨銳器進一 步具有一馬達，用於使此旋轉軸產生旋轉。 在一較佳型態中，殼體的配置方式能使其與旋轉軸整 體旋轉，且形成爲一圓柱體的形狀。殻體具有一周圍壁， -6- (4) 1290079 壁中形成有一環狀的狹縫以及作爲檔止件之用的內壁表面 【實施方式】 圖1到圖3 A與3 B顯示第一實施例的刀刃磨銳器。此 刀刃磨銳器具有一外殻體2，外殼體2係形成爲一平行長 方體的箱型形狀，但是外殼體2的一整個末端表面及一整 個側表面是敞開的。 一內殼體4係以植入的狀態而容納在外殼體2中，且 從外殼體2的開啓側表面處突出。內殼體4係藉由將一帶 狀板彎曲成U字形的形狀而形成的，且具有兩側壁部6及 一曲線部8。側壁部6沿著外殼體2的一縱向方向而彼此 平行伸展。當內殼體4容納於外殻體2中時，側壁部6之 一係配置成能夠關閉外殻體2的敞開側表面。側壁部6的 底座端係藉由半圓形的曲線部8而連結在一起，曲線部8 係配置在外殼體2的另一尾端表面側上。 當內殼體4容納於外殼體2內時，側壁部6的尖端係 定位在外殼體2的敞開尾端表面側。在側壁部6的尖端處 ，形成有突起1〇與1〇，該等突起係朝向彼此突出。介於 突起1 〇與1 0之間所形成的一間隙可界定出一狹縫1 2。當 內殼體4從外殼體2突出時，狹縫12可容納一欲磨銳的 刀刃，使得此刀刃可以在刀片長度的方向上移動。刀片長 度方向能配合側壁部6的寬度方向，或者配合狹縫12的 一縱向方向。 (5) 1290079 配置在內殻體4中的是一磨銳構件14，係藉由將匱 所示的一板材料1 6予以彎曲而形成的。板材料1 6在其 間具有一矩形的底座部1 8，且兩個條狀部2 0係從底座 20的每一端處延伸。在底座部18的每一端上條狀部20 間的一間隙實際上等於條狀部20的寬度。四個條狀部 具有彼此平行的軸線，這些條狀部2 0係相對於其寬度 向在底座部1 8的兩端內以交錯的方式形成。 每個條狀部2 0均具有彈性，在每個條狀部2 〇的一 面中形成一硏磨表面2 2。具有適當顆粒直徑的硏磨顆粒 散亂地黏著於硏磨表面2 2上，使得其表面的粗糙度能 合如3 0 0 grit的磨刀石，就是具有粗糙砂礫的磨刀石。 然硏磨顆粒的材質並未特別限定，但是考量到高強度的 ，則以鑽石或氮化鈦較佳。 再次參考圖1及圖3 A與3 B，爲了使磨銳構件1 4 從板材料1 6製造出來，可將板材料1 6在其縱向中間部 予以彎曲。 更明確地說，將板材料1 6的底座部1 8予以彎曲， 得硏磨表面2 2面向外側，且將其模塑成一半圓形，如 可內切於內殻體4的曲線部8。條狀部20根部係連接到 座部1 8，且將此根部以與底座部1 8的彎曲方向之相同 向加以彎曲，使得延伸自底座部1 8兩端的條狀部2 0可 彼此相交，就好像彼此囑合一樣。 由板材料1 6製成的磨銳構件1 4係容納於底座部 中’而處於底座部1 8內切至內殼體4的曲線部8上。 I 4 中 部 之 20 方 表 是 符 雖 話 能 位 使 此 底 方 以 18 條 (6) 1290079 狀部2 0橫向地延伸於內殼體4的側壁部6之間，且條狀 部2 0的尖端部可接觸突起1 0的根部附近之側壁部的內壁 表面。由於四個條狀部20彼此相交如同彼此曬合一般， 所以他們會在側壁部6的寬度方向上或者是在狹縫1 2的 縱向方向上交錯地排列，且彼此相鄰地配置。 在磨銳構件1 4中，在條狀部2 0內所包括的部位（以 下稱爲伸展部），係從一交叉點伸展到條狀部2 0的尖端處 ，這些部位形成一 V字形磨銳溝槽24。這些伸展部係朝 向狹縫1 2展開，且磨銳溝槽24的一開口係配置在狹縫1 2 附近。磨銳溝槽24係沿著狹縫12伸展，且硏磨表面22 形成磨銳溝槽2 4的兩側表面。 由於條狀部20的尖端係接觸內殼體4的內壁表面， 所以磨銳溝槽24的開口之最大寬度可藉由內壁表面之間 的距離來決定，且會大於狹縫12的寬度。當刀刃磨銳器 並未操作時，介於條狀部20之間的一相交角（以下稱爲預 設的相交角）可藉由內殼體4的內壁表面之間的距離來決 定。 在外殼體2中，由樹脂製成的一塊體26係配置在其 另一末端表面側。塊體26可支撐內殼體4與磨銳構件1 4 ，使得他們兩者可以旋轉。 更具體地說，塊體26具有一圓柱的形狀，且磨銳構 件1 4的彎曲底座部1 8以及條狀部20的彎曲根部係與塊 體26的一外圓周表面產生滑動接觸。如圖2所示，塊體 26係藉由一螺絲28而固定至外殼體2的一側壁上，且在 -9 - (7) 1290079 螺絲2 8側的一端中具有一突緣部3 0。突緣部3 0係配置於 內殼體4與外殼體2的一側壁之間，藉此在兩者之間取得 一空間。配置在此空間內的是一鋼片彈簧3 2，係可以擠壓 內殼體4而緊靠著外殼體2的一側壁，且正對著一側壁。 在圖3中，參數34表示一可摺疊擋止桿。此擋止桿 3 4係配置在外殻體2與內殼體4之間，檔止桿3 4的兩端 係藉由鉸鍊的方式連接到外殼體2與內殼體4上。 以下將說明使用上述刀刃磨銳器之刀片磨銳方法。 使用刀刃磨銳器時，首先旋轉內殻體4，以便從外殼 體2突出去。如圖3B所示，內殼體4被帶入到一直立位 置，使得狹縫1 2被定位至一上側上。在此位置上，內殻 體4係藉由擋止桿3 4而支撐，如此可防止內殼體4的掉 落。接著，使用者以一手維持外殼體2，且以另一手緊握 刀刃。接著，將刀刃的一刀片邊緣擠壓緊靠著磨銳溝槽24 且通過狹縫12，此時使用者在刀片長度方向上來回幾次移 動刀刃，藉此來磨銳刀片邊緣。 當在磨銳期間條狀部2 8受到刀刃的刀片邊緣擠壓時 ，如圖5A所示，條狀部20是可以彈性變形，且相對於刀 刃的刀片邊緣朝外彎曲成一凹面狀。換句話說，由於刀刃 的壓力，介於條狀部2 0之間的相交角0係對應於磨銳溝 槽的一頂點角，此角度會超過內殻體4的內壁表面所決定 的預設相交角。這是因爲條狀部20的根部係固定於內殻 體4中，而且條狀部20的尖端會接觸內殼體4的內壁表 面。 -10- (8) 1290079 假如刀片邊緣在其中如上述相交角0超過預設的相 角之狀態下的磨銳溝槽24中移動時，具有凸面側面的 最終斜角會形成於刀片邊緣中，以對應於條狀部20的 曲，且這些凸面具有一內捲的形狀。圖5B顯示當假設 狀部2 0的尖端並未受到殼體4的內壁表面之限制，刀 受到擠壓而緊靠著磨銳溝槽24時條狀部20的變形。從 5 B中可以清楚看見假如條狀部2 0的末端並未受到限制 | ，則不可能獲得具有凸面側表面的最終斜角。 圖6顯示一藉由上述刀刃磨銳器所磨銳的刀刃40。 圖的一圓圈所示，最終斜角44係形成於一區域內，此 域係從刀刃40的刀片邊緣42尖端開始伸展大約〇.〇2 0.2mm。在此刀刃磨銳器中，根據一較佳型態，將條狀 2 0的預設相交角、彈性特徵等加以適當選擇，使得所磨 的刀刃40之刀片邊緣42的角度α能落在大約1 8到22 之間的範圍內，且最終斜角44的角度y?可以落在2 8到 > 度之間的範圍內。 在使用刀刃40的情形中，由於刀片邊緣42內所產 的最終斜角44之兩表面形成爲凸面狀，相較於最終斜 44的兩表面被塑形成扁平表面之情形，刀刃能輕易地與 切割的物體分離開來，且能夠在切割的時候切割得很好 而且，由於磨銳溝槽24在磨銳期間會展開超過預 的相交角，所以最終斜角44的角度石會大於刀片邊緣 的角度α。結果，歸因於刪去碳化物晶粒的刻痕則難以 生，且刀刃的鋒利程度可以維持一段很長的時間。因此 交 彎 條 片 圖 時 如 到 部 銳 度 32 生 角 欲 〇 設 42 產 -11 - 1290079 Ο) 不需要經常磨銳刀刃。 本發明並未侷限於第一實施例而已，且可以產生出其 他不同的修改。例如，外殼體2可以由樹脂模塑製成，如 此便能輕易維持一形狀。也可以在內殼體4中整體地形成 一固持部，而不需要設置外殼體2。 在第一實施例中，內殻體4的內壁表面係作爲擋止件 之用，可決定磨銳溝槽24的最大開口寬度以及條狀部20 之間的預設相交角。然而，作爲擋止件，可以設置多數銷 ，這些銷可以從外側接觸到條狀部2 0的伸展部內之某處 部位。 此外，即使在尙未使用的狀態下，條狀部20的尖端 仍可以接觸內殻體4的內壁表面，且在未使用狀態下的相 交角0會等於預設的相交角。然而，藉由在條狀部20的 尖端與內殻體4的內壁表面之間設置一餘隙，能使預設的 相交角大於未使用狀態中的相交角0。 雖然在第一實施例中，磨銳構件1 4具有彼此相交的 四個條狀部20，但是假如有至少二個以上且使這些條狀部 20能彼此相交的話，條狀部20的數目就算足夠了。然而 ，最好條狀部2 0的數目能夠四個以上，以便在條狀部2 0 內獲得適當的彈性特性，且同時防止刀刃在磨銳期間產生 搖晃。 此外，雖然磨銳構件14是由金屬製成，也可以使用 由樹脂或植物纖維製成的磨銳構件。在此情形中，條狀部 及硏磨表面可以藉由模塑樹脂纖維或植物纖維與硏磨顆粒 -12- (10) 1290079 的混合物一體成形，以便藉由使用造紙、自焊或黏著劑的 方法而具有厚度。 而且，可以形成條狀部，其中硏磨表面是藉由滾壓多 數如40 0目或60 0目的金屬網而整體地形成硏磨表面，在 這些金屬網中硏磨顆粒係以一欲整合的堆積狀態散佈於金 屬線的表面上。在此情形中，可以藉由在金屬網之間*** 釋放紙來調整所獲得的條狀部之厚度。 圖7與8顯示第二實施例的刀刃磨銳器。此刀刃磨銳 器具有一馬達54，其中一殼體50與一磨銳構件52係整體 地且旋轉式地裝配到此馬達上。 更明確地說，刀刃磨銳器的殼體50具有兩碟片56。 這些碟片56係固定至馬達54的一旋轉軸58上且彼此分 開。在碟片56的邊緣中形成有輪圈狀突起60，係彼此相 向突出。且介於突起60之間的一間隙可界定出狹縫62的 寬度。狹縫62係在碟片56或殼體50的一周圍方向上延 伸，以便具有一環狀的形狀。 刀刃磨銳器的磨銳構件64具有第一構件64及第二構 件66，兩者係組合在一起就如同彼此囈合一樣，且還具有 一圓柱狀襯墊68，係放置在第一與第二構件64，66的中 心之間。第一與第二構件6 4與6 6分別具有正八角形的底 座部64a與66a，用以夾住襯墊68。條狀部64b與66b係 從底座部64a與66a的每一側邊徑向延伸出來，如圖9所 示。硏磨表面64c與66c係分別形成於每一條狀部64b與 66b的一*表面中。 -13- (11) 1290079 每一條狀部64b與66b的寬度係對應於底座部64a與 66a的每一側之一半長度。條狀部64b與66b的根部係配 置在底座部64a與66a的每一側之一側上，以便允許條狀 部6 4b與6 6b能夠彼此相交，就如同彼此嚼合一樣。條狀 部64b與6 6b的根部係受到彎曲，使得條狀部64b與66b 能彼此相交。條狀部64b與66b的尖端係與突起60的***附近之碟片56的內壁表面產生接觸。 在此情形中，條狀部64b與66b的伸展部係從交叉點 伸展到條狀部64b與66b的尖端，因而形成一 V字形的磨 銳溝槽70。伸展部係朝向狹縫12展開，且磨銳溝槽70的 一開口係配置在突起60附近。磨銳溝槽70係在狹縫12 的周圍方向上以規律的間隔配置。條狀部64b與66b的硏 磨表面64c與66c可形成硏磨溝槽70的兩側表面。 而且，由於條狀部64b與66b的尖端係與碟片56的 內壁表面或殼體50的內端表面產生接觸，所以每一磨銳 溝槽70的開口之最大寬度可以藉由內壁表面之間的距離 來加以決定，且是大於狹縫62的寬度。當刀刃磨銳器並 未使用時，介於條狀部64b與66b之間的預設相交角則是 藉由殼體50的內壁表面之間的距離來決定的。 碟片56、第一與第二構件64與66，及襯墊68各具 有一固定孔，馬達54的旋轉軸5 8係***此孔，使得他們 無法產生相對旋轉。 參數72標示出一保護蓋，係用以關閉旋轉的殻體5 0 。在此保護蓋中形成的是一開口 74，係吻合狹縫62的上 -14- (12) 1290079 半周圍部。 在使用上述修改範例的刀刃磨銳器時，刀刃的刀片邊 緣首先會受到擠壓而緊靠著磨銳溝槽7 0，此磨銳溝槽7 〇 通過保護蓋72的開口 74與狹縫62而朝上展開。假如馬 達5 4開始操作同時在此狀態下握住刀刃的話，第一與第 二構件64與66係整體地與殻體50 —起旋轉啓動。這樣 的旋轉導致磨銳溝槽7〇的旋轉，也就是說在刀片長度方 向上磨銳溝槽7 0與刀刃之間產生了相對移動，如此便能 磨銳刀片邊緣。於是，刀刃磨銳器不僅能使最終斜角4 4 在刀片邊緣內產生變形，而且還能產生快速磨銳。可以使 用一未顯示的控制器來適當地改變馬達5 4的旋轉速度。 雖然已經說明了本發明，但是很顯然地本發明仍然可 以藉由不同的方式來加加以變化。這樣的變化並不會被看 成是脫離了本發明的精神與範圍，且對於熟知此項技術者 來說，在以下申請專利範圍所界定的範圍之內，均可以產 生出其他類似的修改。 【圖式簡單說明】 從以下伴隨附圖的詳細說明中，將可以更加清楚地了 解本發明。這些圖形僅作爲說明用途，而非用以限制本發 明。 圖1是一立體圖，顯示第一實施例的刀刃磨銳器，其 中一外殻體與一內殼體均局部切開； 圖2是一平面圖，顯示圖1的刀刃磨銳器，其中將內 -15- (13) 1290079 殼局部切開； 圖3A與3B是沿著圖2的線III-III所作之剖面圖， 分別顯示內殼體係容納在外殼體內的情形，以及內殼體從 外殼體突出之情形； 圖4是一展開圖，顯示應用於圖1的刀刃磨銳器之一 磨銳構件； 圖5 A與5 B係用以說明在圖1的刀刃磨銳器中的檔止 件之功用，以及分別顯示具有與沒有檔止件的一磨銳溝槽 圖6是一圖形，顯示藉由圖1的刀刃磨銳器所磨銳的 一刀刃，以及一放大剖面圖，顯示一圓圈內的刀片邊緣及 其鄰近處之情形； 圖7是一側視圖，以局部剖面顯示一修改範例的刀刃 磨銳器； 圖8是一分解圖，顯示圖7的刀刃磨銳器；及 圖9是一正視圖’顯示與一碟片應用至圖7的刀刃磨 銳器之一磨銳構件。 [主要元件符號說明】 2 :外殼體 4 :內殼體 6 :側壁部 8 :曲線部 10 :突起 -16- (14)12900791290079 (1) Description of the Invention [Technical Field of the Invention] The present invention relates to a blade sharpener. [Prior Art] As a blade sharpening device, for example, a device disclosed in Japanese Patent Laid-Open Publication No. 2004-90 1 69 has a V-shaped sharp groove which is used for a blade. The edge of the blade is squeezed and slides against the groove. More specifically, the sharpening sharpener disclosed in this patent has a plurality of sharpened strips arranged to intersect each other in a V shape. These sharpened strips form a V-shaped sharpened groove between the honing surfaces, wherein the honing surface is formed in one side of each side of each sharpened strip. According to the sharpening sharpener of this patent document, since each sharp strip is elastic, the burr of the edge of the blade is pressed by the honing surface, and when the blade is sharpening, the edge of the blade is straightened. Therefore, the blade can be sharpened in a short time. During the sharpening of the blade edge of the blade, a portion is formed in the tip end portion of the blade, called the final bevel, which has a profile of an isosceles triangle. Preferably, the final bevel is accomplished in such a manner that each side surface is shaped as a rounded convex surface. This is because if the two sides of the final bevel are shaped into a flat surface, the separation of the object to be cut is lowered at the time of cutting, and it becomes difficult to operate the blade. Moreover, since the final bevel angle is thin, it is easy to create a score in the blade, which causes the sharpness of the blade to deteriorate in a short time. Therefore, the 'blade' needs to be constantly suspected of 4 _ (2) 1290079 sharpening action. SUMMARY OF THE INVENTION It is an object of the present invention to provide a blade sharpening with a simple structure, which can be used to sharpen a blade, so that the blade has excellent operability and its sharpness can be maintained for a long period of time. time. In order to achieve the above object, the sharpening sharpener of the present invention has at least two φ sharpening strips which are closely attached to each other in the width direction thereof and intersect each other at an intersection. These sharpened strips are elastically deformable and include a plurality of stretches extending from the intersection to one end of the sharpened strip and expanded to form a V-shaped groove having a vertex angle. a plurality of honing surfaces are respectively formed on a surface of the stretches, the honing surfaces may form side surfaces of the grooves; and have a bending mechanism when a blade edge of the blade is sharpened in the groove Used to bend the honing surfaces to increase the apex angle. Φ According to the blade sharpener of the present invention, when the blade edge of the blade is pressed against the groove, the sharpened strips are elastically deformable, and each of the honing surfaces is curved into a concave shape, and is increased. Large vertex angle. When the blade is moved relative to the groove having an increased apex angle, a final bevel created in a tip of the edge of the blade is formed in such a manner that both sides have a convex shape. Increase the angle of the final bevel. The sharpened blade in this manner by the sharpening sharpener of the present invention can enhance the separation of the object to be cut, and both sides of the final bevel formed in the tip end of the blade edge are sharpened into a convex shape. And produces -5- (3) 1290079 excellent operability. Such a blade can make the final bevel angle thicker, so that it is difficult to create a score on the blade, so the sharpness of the blade can last for a long time. In a preferred form, the bending mechanism includes a fixing member for fixing the other end of the sharpening strip and a plurality of stoppers for contacting the sharpening strip to limit the maximum opening of the groove. width. In a preferred form, the sharpening sharpener further has a housing for receiving the sharpened strips and having a slit extending in the width direction of the sharpened strip. When the edge of the blade is sharpened, the slit accepts that the edge of the blade of the blade moves in the length of the blade of the blade. In a preferred embodiment, the housing is formed in a box shape and has a wall in which a linear slit is formed and an inner wall surface as a stopper. In a preferred form, four or more sharpening strips may be staggered along their width direction. In a preferred embodiment, the blade sharpener further has an outer casing that can accommodate the outer casing as an inner casing such that the inner casing can protrude from the outer casing and serve as a retaining during sharpening of the blade. unit. In a preferred embodiment, a plurality of the grooves are radially arranged about a rotation axis so as to rotate integrally with the rotation axis, and the extensions of the sharp bars can be radially outward of the rotation axis. The direction is unfolded, and the sharpener further has a motor for rotating the rotating shaft. In a preferred form, the housing is configured to rotate integrally with the axis of rotation and is formed into the shape of a cylinder. The housing has a peripheral wall, and an annular slit is formed in the wall of the -6-(4) 1290079 and an inner wall surface for the stopper [Embodiment] FIGS. 1 to 3 A and 3 B show the first The edge sharpener of the embodiment. The blade sharpener has an outer casing 2 which is formed in a box shape of a parallel rectangular parallelepiped, but an entire end surface of the outer casing 2 and an entire side surface are open. An inner casing 4 is housed in the outer casing 2 in an implanted state and protrudes from the open side surface of the outer casing 2. The inner casing 4 is formed by bending a strip-like plate into a U-shape and has two side wall portions 6 and a curved portion 8. The side wall portions 6 extend parallel to each other along a longitudinal direction of the outer casing 2. When the inner casing 4 is housed in the outer casing 2, one of the side wall portions 6 is configured to be able to close the open side surface of the outer casing 2. The base end of the side wall portion 6 is joined by a semicircular curved portion 8, and the curved portion 8 is disposed on the other end surface side of the outer casing 2. When the inner casing 4 is housed in the outer casing 2, the tip end of the side wall portion 6 is positioned on the open end surface side of the outer casing 2. At the tip end of the side wall portion 6, protrusions 1 and 1 are formed which protrude toward each other. A gap formed between the protrusions 1 〇 and 10 can define a slit 1 2 . When the inner casing 4 protrudes from the outer casing 2, the slit 12 can accommodate a sharpened blade so that the blade can move in the direction of the length of the blade. The length of the blade can match the width direction of the side wall portion 6 or a longitudinal direction of the slit 12. (5) 1290079 Disposed in the inner casing 4 is a sharpening member 14 which is formed by bending a plate material 16 shown by 匮. The sheet material 16 has a rectangular base portion 18 therebetween and the two strip portions 20 extend from each end of the base 20. A gap between the strip portions 20 at each end of the base portion 18 is substantially equal to the width of the strip portion 20. The four strip portions have axes parallel to each other, and these strip portions 20 are formed in a staggered manner in the both ends of the base portion 18 with respect to the width thereof. Each of the strips 20 has elasticity, and a honing surface 22 is formed in one side of each strip 2 〇. The honing particles having the appropriate particle diameter are scattered on the honing surface 22 so that the surface roughness is such as a whetstone of 300 grit, which is a whetstone having coarse grit. However, the material of the honing particles is not particularly limited, but in consideration of high strength, diamond or titanium nitride is preferred. Referring again to Figures 1 and 3A and 3B, in order to manufacture the sharpened member 14 from the sheet material 16, the sheet material 16 can be bent at its longitudinal intermediate portion. More specifically, the base portion 18 of the sheet material 16 is bent so that the honing surface 22 faces outward and is molded into a semicircular shape, such as the curved portion 8 which can be inscribed in the inner casing 4. . The strip portion 20 is connected to the seat portion 18 and is bent in the same direction as the bending direction of the base portion 18 such that the strip portions 20 extending from both ends of the base portion 18 can intersect each other. It's like being together. The sharpening member 14 made of the plate material 16 is housed in the base portion and is cut into the curved portion 8 of the inner casing 4 in the base portion 18. The square of the middle portion of I 4 is a symbol that allows the bottom to extend laterally between the side wall portions 6 of the inner casing 4 with 18 (6) 1290079 portions 20, and the strip portion 20 The tip end portion may contact the inner wall surface of the side wall portion near the root of the protrusion 10. Since the four strip portions 20 intersect each other as if they are sunked with each other, they are alternately arranged in the width direction of the side wall portion 6 or in the longitudinal direction of the slit 12, and are disposed adjacent to each other. In the sharpening member 14, the portion included in the strip portion 20 (hereinafter referred to as the stretch portion) extends from an intersection to the tip end of the strip portion 20, and these portions form a V-shaped grindstone. Sharp groove 24. These stretches are unfolded toward the slit 12, and an opening of the sharp groove 24 is disposed near the slit 12. The sharpened grooves 24 extend along the slit 12, and the honing surface 22 forms the two side surfaces of the sharpened grooves 24. Since the tip end of the strip portion 20 contacts the inner wall surface of the inner casing 4, the maximum width of the opening of the sharpened groove 24 can be determined by the distance between the inner wall surfaces and is larger than the width of the slit 12. . When the blade sharpener is not operated, an angle of intersection between the strip portions 20 (hereinafter referred to as a predetermined intersecting angle) can be determined by the distance between the inner wall surfaces of the inner casing 4. In the outer casing 2, a block 26 made of a resin is disposed on the other end surface side thereof. The block 26 can support the inner casing 4 and the sharpening member 14 such that they can both rotate. More specifically, the block body 26 has a cylindrical shape, and the curved base portion 18 of the sharpened member 14 and the curved root portion of the strip portion 20 are in sliding contact with an outer circumferential surface of the block body 26. As shown in Fig. 2, the block 26 is fixed to a side wall of the outer casing 2 by a screw 28, and has a flange portion 30 at one end of the side of the -9 - (7) 1290079 screw 28. The flange portion 30 is disposed between the inner casing 4 and a side wall of the outer casing 2, thereby obtaining a space therebetween. Disposed within this space is a steel leaf spring 32 which is capable of squeezing the inner casing 4 against a side wall of the outer casing 2 and facing a side wall. In Figure 3, parameter 34 represents a foldable stop lever. The stopper rod 34 is disposed between the outer casing 2 and the inner casing 4, and both ends of the stopper rod 34 are hingedly connected to the outer casing 2 and the inner casing 4. The blade sharpening method using the above-described blade sharpener will be described below. When the sharpening device is used, the inner casing 4 is first rotated to protrude from the outer casing 2. As shown in Fig. 3B, the inner casing 4 is brought into the upright position so that the slit 12 is positioned on an upper side. In this position, the inner casing 4 is supported by the stopper rod 34, so that the inner casing 4 can be prevented from falling. Next, the user holds the outer casing 2 with one hand and grips the blade with the other hand. Next, a blade edge of the blade is pressed against the sharpened groove 24 and through the slit 12, at which time the user moves the blade back and forth several times in the length direction of the blade, thereby sharpening the edge of the blade. When the strip portion 28 is pressed by the blade edge of the blade during sharpening, as shown in Fig. 5A, the strip portion 20 is elastically deformable and curved outwardly in a concave shape with respect to the blade edge of the blade edge. In other words, due to the pressure of the blade, the angle of intersection 0 between the strips 20 corresponds to a vertex angle of the sharpened groove, which angle exceeds the predetermination determined by the inner wall surface of the inner casing 4. Set the intersection angle. This is because the root of the strip portion 20 is fixed in the inner casing 4, and the tip end of the strip portion 20 contacts the inner wall surface of the inner casing 4. -10- (8) 1290079 If the edge of the blade moves in the sharp groove 24 in a state in which the intersection angle 0 exceeds the preset phase angle, a final bevel having a convex side surface is formed in the edge of the blade, The curvature corresponding to the strip portion 20, and these convex masks have an involute shape. Fig. 5B shows the deformation of the strip portion 20 when the tip of the hypothesis 20 is not restricted by the inner wall surface of the casing 4 and the knife is pressed against the sharp groove 24. It is clear from 5 B that if the end of the strip 20 is not restricted, it is impossible to obtain a final bevel having a convex side surface. Figure 6 shows a sharpened edge 40 which is sharpened by the sharpening of the blade. As indicated by a circle in the figure, the final bevel 44 is formed in a region that extends from the tip end of the blade edge 42 of the blade 40 by approximately 0.2 mm. In this blade sharpener, according to a preferred embodiment, the predetermined intersecting angle, elastic characteristics, and the like of the strips 20 are appropriately selected so that the angle α of the blade edge 42 of the sharpened blade 40 can fall. In the range between 1 8 and 22, and the angle y? of the final bevel 44 may fall within the range between 28 and > degrees. In the case of the use of the blade 40, since the two surfaces of the final bevel 44 produced in the blade edge 42 are formed in a convex shape, the blade can be easily combined with the case where the two surfaces of the final oblique 44 are molded into a flat surface. The cut object is separated and can be cut very well at the time of cutting and, since the sharpened groove 24 will expand beyond the pre-intersecting angle during sharpening, the angle of the final bevel 44 will be greater than the edge of the blade. Angle α. As a result, the score due to the deletion of the carbide grains is difficult to produce, and the sharpness of the blade can be maintained for a long period of time. Therefore, when crossing the curved piece, if the sharpness is 32, the angle is set to 42. -11 - 1290079 Ο) It is not necessary to sharpen the sharp edge frequently. The present invention is not limited to the first embodiment, and other different modifications can be produced. For example, the outer casing 2 can be molded of a resin, so that a shape can be easily maintained. It is also possible to integrally form a holding portion in the inner casing 4 without providing the outer casing 2. In the first embodiment, the inner wall surface of the inner casing 4 serves as a stopper for determining the maximum opening width of the sharpened groove 24 and the predetermined intersection angle between the strip portions 20. However, as the stopper, a plurality of pins which can be contacted from the outside to a certain portion in the stretch portion of the strip portion 20 can be provided. Further, even in the state in which the crucible is not used, the tip end of the strip portion 20 can contact the inner wall surface of the inner casing 4, and the intersecting angle 0 in the unused state will be equal to the preset intersecting angle. However, by providing a clearance between the tip end of the strip portion 20 and the inner wall surface of the inner casing 4, the predetermined intersection angle can be made larger than the intersection angle 0 in the unused state. Although in the first embodiment, the sharpening member 14 has four strip portions 20 that intersect each other, if there are at least two or more and the strip portions 20 can intersect each other, the number of the strip portions 20 is counted. enough. However, it is preferable that the number of the strips 20 can be four or more in order to obtain appropriate elastic characteristics in the strip portion 20 while at the same time preventing the blade from being shaken during sharpening. Further, although the sharpening member 14 is made of metal, a sharpening member made of resin or plant fiber can also be used. In this case, the strip and the honing surface may be integrally formed by molding a mixture of resin fibers or plant fibers and honing particles -12-(10) 1290079, by using papermaking, self-welding or adhesive. The method has a thickness. Moreover, a strip portion may be formed, wherein the honing surface is integrally formed by rolling a metal mesh such as 40 mesh or 60 mesh, and the granules are honed in the metal mesh to be integrated The stacked state is spread over the surface of the metal wire. In this case, the thickness of the obtained strip portion can be adjusted by inserting a release paper between the metal meshes. 7 and 8 show the sharpening sharpener of the second embodiment. The sharpening sharpener has a motor 54 in which a housing 50 is integrally and rotatably mounted to the motor. More specifically, the housing 50 of the sharpening sharpener has two discs 56. These discs 56 are fixed to a rotating shaft 58 of the motor 54 and are separated from each other. A rim-like projection 60 is formed in the edge of the disc 56 so as to protrude toward each other. And a gap between the protrusions 60 can define the width of the slit 62. The slit 62 extends in a peripheral direction of the disc 56 or the casing 50 so as to have an annular shape. The sharpening member 64 of the sharpening sharpener has a first member 64 and a second member 66, which are combined to be like each other, and also has a cylindrical gasket 68, which is placed in the first and the first Between the centers of the two members 64, 66. The first and second members 6 4 and 6 6 respectively have regular octagonal base portions 64a and 66a for gripping the spacer 68. The strips 64b and 66b extend radially from each side of the base portions 64a and 66a as shown in FIG. The honing surfaces 64c and 66c are formed in a * surface of each of the strip portions 64b and 66b, respectively. -13- (11) 1290079 The width of each of the strips 64b and 66b corresponds to a half length of each side of the base portions 64a and 66a. The roots of the strip portions 64b and 66b are disposed on one side of each side of the base portions 64a and 66a to allow the strip portions 64b and 66b to intersect each other as if they were chewed to each other. The roots of the strip portions 64b and 66b are bent so that the strip portions 64b and 66b can intersect each other. The tip end portions of the strip portions 64b and 66b come into contact with the inner wall surface of the disc 56 near the root of the projection 60. In this case, the stretch of the strip portions 64b and 66b extends from the intersection to the tips of the strip portions 64b and 66b, thereby forming a V-shaped sharp groove 70. The stretched portion is unfolded toward the slit 12, and an opening of the sharpened groove 70 is disposed in the vicinity of the projection 60. The sharp grooves 70 are arranged at regular intervals in the circumferential direction of the slit 12. The honing surfaces 64c and 66c of the strip portions 64b and 66b may form both side surfaces of the honing groove 70. Moreover, since the tips of the strip portions 64b and 66b are in contact with the inner wall surface of the disc 56 or the inner end surface of the housing 50, the maximum width of the opening of each sharpened groove 70 can be made by the inner wall surface. The distance between them is determined and is greater than the width of the slit 62. When the blade sharpener is not in use, the predetermined angle of intersection between the strip portions 64b and 66b is determined by the distance between the inner wall surfaces of the housing 50. The disc 56, the first and second members 64 and 66, and the spacer 68 each have a fixing hole into which the rotary shaft 58 of the motor 54 is inserted so that they cannot be rotated relatively. Parameter 72 identifies a protective cover for closing the rotating housing 50. Formed in this protective cover is an opening 74 which is fitted to the upper periphery of the slit 62 -14- (12) 1290079. When the blade sharpener of the above modified example is used, the blade edge of the blade is first pressed against the sharpening groove 70, and the sharp groove 7 is passed through the opening 74 of the protective cover 72 and the slit 62. And head up. If the motor 54 starts operating while holding the blade in this state, the first and second members 64 and 66 are integrally rotated together with the housing 50. Such rotation causes a rotation of the sharpened groove 7〇, that is, a relative movement between the sharpened groove 70 and the blade in the longitudinal direction of the blade, so that the edge of the blade can be sharpened. Thus, the sharpener sharpener not only causes the final bevel 4 4 to deform within the edge of the blade, but also produces a sharp sharpening. An unillustrated controller can be used to appropriately change the rotational speed of the motor 54. Although the invention has been described, it will be apparent that the invention may be modified in various ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and other similar modifications can be made within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be more clearly understood from the following detailed description of the accompanying drawings. These figures are for illustrative purposes only and are not intended to limit the invention. Figure 1 is a perspective view showing the sharpening sharpener of the first embodiment, wherein an outer casing and an inner casing are partially cut away; Fig. 2 is a plan view showing the sharpening sharpener of Fig. 1, in which - 15- (13) 1290079 partial cut of the shell; Figs. 3A and 3B are cross-sectional views taken along line III-III of Fig. 2, respectively showing the case where the inner casing is housed in the outer casing, and the inner casing protrudes from the outer casing Figure 4 is a developed view showing one of the sharpening members applied to the sharpening sharpener of Figure 1; Figures 5A and 5B are used to illustrate the function of the stop member in the sharpening sharpener of Figure 1. And respectively showing a sharp groove with and without a stop member. FIG. 6 is a figure showing a sharp edge sharpened by the sharpener sharpener of FIG. 1, and an enlarged sectional view showing the inside of a circle Figure 7 is a side elevational view showing a modified example blade sharpener in partial cross-section; Figure 8 is an exploded view showing the blade sharpener of Figure 7; and Figure 9 is a Front view 'display and one disc applied to one of the blade sharpeners of Figure 7 . [Description of main component symbols] 2 : Outer casing 4 : Inner casing 6 : Side wall portion 8 : Curved portion 10 : Protrusion -16- (14) 1290079
12 : 14 : 16 : 18 : 20 : 22 : 24 : 26 : 40 : 42 : 44 : 50 : 52 : 54 : 56 : 60 : 62 : 64 : 64a : 64b ： 6 4c · 狹縫 磨銳構件 板材料 底座部 條狀部 硏磨表面 磨銳溝槽 塊體 刀刃 刀片邊緣 最終斜角 殻體 磨銳構件 馬達 碟片 突起 狹縫 第一構件 底座部 條狀部 硏磨表面 66 :第二構件 66a :底座部 66b :條狀部 (15) 1290079 6 6c 68 : 70 : 72 : 74 : 硏磨表面 襯墊 磨銳溝槽 保護蓋 開口12 : 14 : 16 : 18 : 20 : 22 : 24 : 26 : 40 : 42 : 44 : 50 : 52 : 54 : 56 : 60 : 62 : 64 : 64a : 64b : 6 4c · Slit sharp component board material Base portion strip honing surface sharpening groove block blade edge edge final bevel shell sharpening member motor disc protrusion slit first member base portion strip honing surface 66: second member 66a: base Part 66b: strip (15) 1290079 6 6c 68 : 70 : 72 : 74 : honing surface liner sharp groove protection cover opening
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