The present invention can restrict a swing movement if the center of gravity of a driver sitting on a driver′s seat leans to one side to cause imbalance. The swing restriction device for a construction machine according to the present invention comprises: a safety lever installed on one side of the driver′s seat to be able to convert into an operation mode and a release mode, wherein the safety lever supplies or blocks pilot pressure to an operation lever via a solenoid valve which converts into ON and OFF states during conversion into the operation mode and the release mode; weight detection sensors arranged at predetermined positions of the driver′s seat to detect the distribution of the center of gravity of the driver; and a controller for applying an electrical signal to the solenoid valve if the safety lever converts into the operation mode and the weight of the driver, which is detected by the weight detection sensors, is distributed evenly, and blocking the electrical signal applied to the solenoid valve if a sitting position leans to one side and the weight of the driver concentrates on a weight detection sensor at a specific position among the weight detection sensors for longer than a set time.
SWING RESTRICTION DEVICE AND METHOD THEREOF FOR CONSTRUCTION MACHINE
2015-09-11
Patent
Electronic Resource
Korean
GREASE SUPPLY SYSTEM FOR SWING DEVICE AND CONSTRUCTION MACHINE
European Patent Office | 2017
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