WORK MACHINE

To provide a work machine that is good in workability.SOLUTION: A calculating part 42 has, as modes for driving a motor 3, a normal-rotation over-fastening prevention mode of preventing over-fastening in fastening work by normal rotation, a normal-rotation nut-falling prevention mode of preventing a...

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Bibliographische Detailangaben
Hauptverfasser:	TAMURA KENGO, SUZUKI KOJI, MITSUBE TAKUMI, NIITO TOSHIYA, MASUKO HIROSHIKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide a work machine that is good in workability.SOLUTION: A calculating part 42 has, as modes for driving a motor 3, a normal-rotation over-fastening prevention mode of preventing over-fastening in fastening work by normal rotation, a normal-rotation nut-falling prevention mode of preventing a nut or the like from falling in loosening work by normal rotation, a reverse-rotation over-fastening prevention mode of preventing over-fastening in fastening work by reverse rotation, a reverse-rotation nut-falling prevention mode of preventing a nut or the like from falling in loosening work by reverse rotation, and a normal mode of continuing to drive the motor 3 in accordance with operation of a trigger switch 6 except for the time when an abnormality occurs.SELECTED DRAWING: Figure 3 【課題】作業性の良い作業機を提供する。【解決手段】演算部４２は、モータ３の駆動モードとして、正転による締め付け作業における締め過ぎを防止する正転締め過ぎ防止モードと、正転による緩め作業におけるナット等の脱落を防止する正転ナット脱落防止モードと、逆転による締め付け作業における締め過ぎを防止する逆転締め過ぎ防止モードと、逆転による緩め作業におけるナット等の脱落を防止する逆転ナット脱落防止モードと、異常発生時を除きトリガスイッチ６の操作に応じたモータ３の駆動を継続する通常モードと、を有する。【選択図】図３