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To improve operability for a lock member in the following case where the lock member for locking rotation of a spindle in a cutting machine for performing cutting while rotating a circular blade mounted on the spindle resists magnetic force of a brushless motor and, therefore, spring force for retur...

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Bibliographische Detailangaben
Hauptverfasser:	ANUPONG PHONHAN, KUME SHO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACCESSORY MACHINES OR APPARATUS BROACHING COMPONENTS OR ACCESSORIES THEREFOR FILING LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOTOTHERWISE PROVIDED FOR MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS PLANING SAFETY DEVICES, e.g. THOSE FOR SAWS SAWING SAWS FOR WOOD OR SIMILAR MATERIAL SCRAPING SHEARING SLOTTING TRANSPORTING WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	To improve operability for a lock member in the following case where the lock member for locking rotation of a spindle in a cutting machine for performing cutting while rotating a circular blade mounted on the spindle resists magnetic force of a brushless motor and, therefore, spring force for returning to an unlocking position may be set strongly, in which case operability for moving the lock member toward a locking position decreases.SOLUTION: While fingers F2, F3, F4, F5, different from a thumb F1 for moving and operating a lock member 51 are kept hooked around an operation auxiliary part 55, the lock member 51 is pushed and operated in a locking direction. By receiving reaction force with the operation auxiliary part 55, great pushing operation force can easily be applied to the lock member 51.SELECTED DRAWING: Figure 7 【課題】スピンドルに取り付けた円形の刃具を回転させて切断加工を行う切断機において、スピンドルの回転をロックするロック部材については、ブラシレスモータの磁力に抗するためアンロック位置への復帰用のばね力が強く設定される場合があり、係る場合にはロック部材のロック位置側への操作性が低下する。本発明は、このような場合のロック部材の操作性をよくすることを目的とする。【解決手段】ロック部材５１を移動操作する親指Ｆ１とは別の指Ｆ２，Ｆ３，Ｆ４，Ｆ５を操作補助部５５に引き掛けて、ロック部材５１をロック方向に押し込み操作する構成とする。操作補助部５５で反力を受けることで、ロック部材５１に対して大きな押し込み操作力をより楽に加えることができる。【選択図】図７