A left console device (11) disposed on an entrance (8A)-side of a cab (8) is provided with a gate lock device (19). The gate lock device (19) includes a gate lock lever (20) which has an operating part (20C) to be operated by an operator and is rotationally displaced between a lock position and an unlock position, and a spring member (22) which urges the gate lock lever (20) toward the lock position or the unlock position. The spring member (22) is configured to urge the gate lock lever (20) toward the unlock position when the operating part (20C) of the gate lock lever (20) is in a height position lower than an upper surface (16C) of the left console device (11) (an upper cover (16)) and urges the gate lock lever (20) toward the lock position when the operating part (20C) of the gate lock lever (20) is in a height position higher than the upper surface (16C) of the left console device (11).

A left console device (11) disposed on an entrance (8A)-side of a cab (8) is provided with a gate lock device (19). The gate lock device (19) includes a gate lock lever (20) which has an operating part (20C) to be operated by an operator and is rotationally displaced between a lock position and an unlock position, and a spring member (22) which urges the gate lock lever (20) toward the lock position or the unlock position. The spring member (22) is configured to urge the gate lock lever (20) toward the unlock position when the operating part (20C) of the gate lock lever (20) is in a height position lower than an upper surface (16C) of the left console device (11) (an upper cover (16)) and urges the gate lock lever (20) toward the lock position when the operating part (20C) of the gate lock lever (20) is in a height position higher than the upper surface (16C) of the left console device (11).

An apparatus for retaining an upper pivoting body of a construction machine having a lower traveling body includes a protrusion on a lower surface of the upper pivoting body, a socket portion on an upper side of the lower traveling body that couples with the protrusion, an elastic member on a lower side of the socket portion that elastically supports the socket portion, a first tapered member on a lower side of the elastic member to support the elastic member, a lower surface of the first tapered member having a sloping surface, and a second tapered member on a lower side of the first tapered member. The upper surface of the second tapered member has a sloping surface that makes sliding contact with the first tapered member. The second tapered member lifts the socket portion, through a horizontal movement, to be coupled with the protrusion or lowers the socket portion to be separated from the protrusion.

A system and method for the controlled lowering and lifting of a load are disclosed. The system and method may include operating a work machine having a hydraulic system including a hydraulic actuator for supporting a load, a first control valve in fluid communication with the actuator, and a controller for operating the first control valve. In one embodiment, the controller includes a first algorithm for operating the first control valve in a load lowering operation. When an operational fault within the hydraulic system is detected, the controller can be configured to enter into a safe lowering mode. In the safe lowering mode, the first algorithm is disabled and a pulse width modulation (PWM) current is sent from the controller to the first control valve. A user interface is provided to allow an operator to control the PWM current duty ratio to allow the load supported by the actuator to be lowered.

Disclosed herein is a detachable cab apparatus for an amphibious vehicle. The detachable cab comprises an enclosure to house the operator, an independent flotation system and a detachment apparatus configured for detachment of the cab from the amphibious vehicle. Additional safety features to avoid injury, or sustain life, of the operator in the detached cab are also provided.

Versatile and convenient safety management of a construction machine is achieved. Construction machines and workers are photographed by a camera of a surveying apparatus. The images of a construction machine and a worker are identified in the photographic image. The positions of the construction machine and the worker that are identified in the photographic image are measured by the surveying apparatus with the use of laser light. The separation distance between the construction machine and the worker in which the positions are measured is calculated. In the case in which the calculated separation distance is at a threshold or less, a warning is issued to the construction machines and the workers.

Vehicles and methods of operating vehicles are disclosed herein. A vehicle includes a main frame, a work implement, and a control system. The work implement is supported by the main frame and configured to carry a payload in use of the vehicle. The control system is supported by the main frame and configured to control operation of the vehicle. The control system includes a payload measurement system configured to provide payload input indicative of a variable payload carried by the work implement in use of the vehicle and a controller coupled to the payload measurement system.

Vehicles and methods of operating vehicles are disclosed herein. A vehicle includes a main frame, a work implement, and a control system. The work implement is supported by the main frame and configured to carry a payload in use of the vehicle. The control system is supported by the main frame and configured to control operation of the vehicle. The control system includes a payload measurement system configured to provide payload input indicative of a variable payload carried by the work implement in use of the vehicle and a controller coupled to the payload measurement system.

A camera captures an image of a region including at least a portion of an operating member and generates image data indicative of the image. A controller acquires the image data from the camera. The controller determines whether an operation of the operating member by an operator is an intentional operation or an unintentional operation based on the image. When the operation of the operating member by the operator is determined to be the intentional operation, the controller controls a work machine according to the operation of the operating member. When the operation of the operating member by the operator is determined to be the unintentional operation, the controller invalidates the operation of the operating member.

A camera captures an image of a region including at least a portion of an operating member and generates image data indicative of the image. A controller acquires the image data from the camera. The controller determines whether an operation of the operating member by an operator is an intentional operation or an unintentional operation based on the image. When the operation of the operating member by the operator is determined to be the intentional operation, the controller controls a work machine according to the operation of the operating member. When the operation of the operating member by the operator is determined to be the unintentional operation, the controller invalidates the operation of the operating member.