DOOR DEVICE FOR MACHINE TOOL
PROBLEM TO BE SOLVED: To safely stop a door when the door collides with an obstacle without damaging both, by preventing external force from acting on both. SOLUTION: This door device for a machine tool has a sliding door 14, a door driving pneumatic cylinder 16 for opening and closing the door 14,...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To safely stop a door when the door collides with an obstacle without damaging both, by preventing external force from acting on both. SOLUTION: This door device for a machine tool has a sliding door 14, a door driving pneumatic cylinder 16 for opening and closing the door 14, a brake 43 for stopping the door 14, a brake driving pneumatic cylinder 41 for operating the brake 43, and an air supply means for stopping supply of air to the door driving pneumatic cylinder 16 and simultaneously supplying the air to the brake driving pneumatic cylinder 41 so that the brake 43 stops the door 14, when the door 14 turning to a closing position collides with the obstacle O. COPYRIGHT: (C)2008,JPO&INPIT |
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