Dmg Mori Seiki Co., Ltd.

Shinji Yonemitsu

Satoshi Miyamoto

Satohiro Izumi

The present invention provides a machine tool making it possible that an operator needs to remove a key member from a predetermined position after an unlock condition of a door is established when a door lock mechanism brings the door into an unlocked state, meanwhile the operator can recognize the necessity of reattaching the key member to the predetermined position when the door lock mechanism brings the door into a locked state. In the machine tool, an interlock mechanismallows a door lock mechanismto bring a doorinto the unlocked state in a state that the unlock condition of the dooris established and when the key memberis removed from the predetermined position and, after the dooris unlocked, allows the door lock mechanismto bring the doorinto the locked state only when the key memberis attached to the predetermined position in a state that the door closed state detection mechanismdetects that the door is located at the predetermined closed position.

Growing community of inventors

Iga, Japan

Shinji Yonemitsu