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A platform for research: civil engineering, architecture and urbanism
EXTENSIBLE/CONTRACTIBLE DRIVING DEVICE AND OPENING/CLOSING MECHANISM
A motor 13 is provided in an outer cylinder 7. An inner cylinder 9 is provided on an inner side of the outer cylinder 7, a tip of the inner cylinder has a closing structure, and the inner cylinder relatively moves in an axial direction with respect to the outer cylinder 7. A screw 11 is rotationally driven by a driving force of the motor 13. A guide nut 15 is driven by the screw 11 and moved in a rotation axis direction of the screw 11. A coil spring 17 is disposed on an outer periphery of the screw 11, comes into contact with a tip of the inner cylinder 9, and applies an biasing force to the guide nut 15 in a rotation axis direction. The screw 11, the guide nut 15, and the coil spring 17 are housed in an inner space 25 formed by the outer cylinder 7 and the inner cylinder 9. A fluid intake/outlet port 29 is provided at a tip of the inner cylinder 9. With such structures, a failure due to water intrusion in an extensible/contractible driving device is reduced.
EXTENSIBLE/CONTRACTIBLE DRIVING DEVICE AND OPENING/CLOSING MECHANISM
A motor 13 is provided in an outer cylinder 7. An inner cylinder 9 is provided on an inner side of the outer cylinder 7, a tip of the inner cylinder has a closing structure, and the inner cylinder relatively moves in an axial direction with respect to the outer cylinder 7. A screw 11 is rotationally driven by a driving force of the motor 13. A guide nut 15 is driven by the screw 11 and moved in a rotation axis direction of the screw 11. A coil spring 17 is disposed on an outer periphery of the screw 11, comes into contact with a tip of the inner cylinder 9, and applies an biasing force to the guide nut 15 in a rotation axis direction. The screw 11, the guide nut 15, and the coil spring 17 are housed in an inner space 25 formed by the outer cylinder 7 and the inner cylinder 9. A fluid intake/outlet port 29 is provided at a tip of the inner cylinder 9. With such structures, a failure due to water intrusion in an extensible/contractible driving device is reduced.
EXTENSIBLE/CONTRACTIBLE DRIVING DEVICE AND OPENING/CLOSING MECHANISM
INAGAKI HIROYUKI (author) / OSAFUNE HITOSHI (author)
2018-10-04
Patent
Electronic Resource
English
IPC:
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
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