System able to control speed of door
AssigneeFanuc Corporation
InventorMasaru Oda
Life of this patent
Estimating the term…
Abstract
A system which can reliably prevent a worker from being caught in a door which is provided on a work machine. The system comprises a work machine which has an operable door, a door drive part which makes the door operate, a door controller which controls the door drive part, a robot which is provided so that at least part can enter and retract from the inside of the work machine when opening the door, and an entry detection part which detects a possibility of a person entering a predetermined zone which includes a range of operation of the robot. The door controller changes a command value to the door drive part which determines the speed of movement of the door when the entry detection part detects that possibility to a second command value which makes the speed of movement decrease.
Claims5
A system comprising:
- a work machine including an openable door;
- a door drive part which opens and closes the door;
- a door controller controlling the door drive part;
- a robot provided so that at least a part of the robot can enter and retract from the inside of the work machine when the door is opened;
- and
- an entry detection part detecting a possibility of a person entering a predetermined zone which includes a motion range of the robot, wherein
- when the entry detection part detects the possibility, the door controller changes a command value, which is to be sent to the door drive part and which determines a speed of movement of the door, to a second command value for decreasing the speed of movement.
Dependencies are inferred from the claim text.