A stabilizer leg device with a stabilizer leg to be moved down-wards from an object so as to stabilize the object by bearing through a foot plate (7) on the ground. The device comprises a first engagement member (20) arranged coaxially to a horizontal axis on a part (19) fixed in relation to the object, and a shaft (12) having a first end provided with a second engagement member (21) and an opposite second end arranged to be influenced by movement of a second stabilizer leg member in relation to a first stabilizer leg member to make the shaft slide along the stabilizer leg under extension and retraction of the stabilizer leg so as to cause pivoting of the stabilizer leg by a mutual engagement of said engagement members (20, 21). Members (16, 17) guiding the shaft are designed to automatically unlock and lock, respectively, the stabilizer leg with respect to possibility to pivot about said horizontal axis by passing a predetermined position by the second stabilizer leg member upon retraction and extension of the stabilizer leg.

A stabilizer leg device with a stabilizer leg to be moved downwards from an object so as to stabilize the object by bearing through a footplate (7) on the ground (20). The device comprises a holder (8) fixed to the object and receiving and holding a first stabilizer leg member (9) vertically displaceable. A first power member (10) displaces the first stabilizer leg member in relation to the holder. A second power member (11) displaces a second stabilizer leg member (12), and thereby the footplate (7) at the end thereof, in relation to the first stabilizer leg member (9). A locking arrangement will automatically lock the first stabilizer leg member in relation to the holder against vertical movements with respect thereto when the second stabilizer leg member (12) reaches a given position when moving downwards and automatically transfer the locking arrangement into an unlocked state when retracting the second stabilizer leg member (12) beyond said position.

A stabilizer leg device with a stabilizer leg to be moved downwards from an object so as to stabilize the object by bearing through a footplate (7) on the ground (20). The device comprises a holder (8) fixed to the object and receiving and holding a first stabilizer leg member (9) vertically displaceable. A first power member (10) displaces the first stabilizer leg member in relation to the holder. A second power member (11) displaces a second stabilizer leg member (12), and thereby the footplate (7) at the end thereof, in relation to the first stabilizer leg member (9). A locking arrangement will automatically lock the first stabilizer leg member in relation to the holder against vertical movements with respect thereto when the second stabilizer leg member (12) reaches a given position when moving downwards and automatically transfer the locking arrangement into an unlocked state when retracting the second stabilizer leg member (12) beyond said position.

In a car body, a lower travelling body of a crawler crane includes a pair of left and right crawler frames, the car body connecting the crawler frames and supporting an upper slewing body, and a pair of car body weights are disposed on front and rear sides of the car body. The car body supporting device includes a supporting mechanism for movably supporting at least one of the paired car body weights, and a drive section for moving the car body weight supported by the supporting mechanism to thereby shift a center of gravity of the lower travelling body in a front and rear direction. The car body weight supporting device can improve postural stability.

In a car body, a lower travelling body of a crawler crane includes a pair of left and right crawler frames, the car body connecting the crawler frames and supporting an upper slewing body, and a pair of car body weights are disposed on front and rear sides of the car body. The car body supporting device includes a supporting mechanism for movably supporting at least one of the paired car body weights, and a drive section for moving the car body weight supported by the supporting mechanism to thereby shift a center of gravity of the lower travelling body in a front and rear direction. The car body weight supporting device can improve postural stability.

A mobile shaft winch includes a carrier vehicle with a vehicle drive, which has an internal combustion engine, a rigid base frame and a rotary platform which is arranged on the base frame via a rotary connection. A drum winch is arranged on the rotary platform with a rope drum which is driven by a winch drive and designed for the winding on and unwinding of a haulage rope. The winch drive includes only an electric motor. A control system is designed for a selective operation of the electric motor on a mains supply system or on an electric generator. The internal combustion engine of the vehicle drive, drives the generator, and the generator and the internal combustion engine are arranged on the carrier vehicle.

A mobile shaft winch includes a carrier vehicle with a vehicle drive, which has an internal combustion engine, a rigid base frame and a rotary platform which is arranged on the base frame via a rotary connection. A drum winch is arranged on the rotary platform with a rope drum which is driven by a winch drive and designed for the winding on and unwinding of a haulage rope. The winch drive includes only an electric motor. A control system is designed for a selective operation of the electric motor on a mains supply system or on an electric generator. The internal combustion engine of the vehicle drive, drives the generator, and the generator and the internal combustion engine are arranged on the carrier vehicle.

Mobile operating machine, provided with at least a work device (11) supported by a movement turret (14), at least a pair of stabilizing front legs (12a, 12b) and at least a pair of stabilizing back legs (13a, 13b); the mobile operating machine also comprises a support structure (18) provided with at least a pair of box-like elements (19a, 19b) configured to house the stabilizing front legs (12a, 12b) or back legs, and at least a positioning seating (20) of the movement turret (14) made in a crossing zone (Z) of the box-like elements (19a, 19b); each box-like element (19a, 19b) is provided with a first end (23a, 23b) that is open and through which a respective stabilizing front leg (12a, 12b), or back leg, is slidingly mobile and a second end (25a, 25b), opposite the first end (23a, 23b) and in correspondence with which a respective stabilizing back leg (13a, 13b), or front leg, is pivoted, so as to rotate around a corresponding axis of rotation (R1, R2).

Mobile operating machine, provided with at least a work device (11) supported by a movement turret (14), at least a pair of stabilizing front legs (12a, 12b) and at least a pair of stabilizing back legs (13a, 13b); the mobile operating machine also comprises a support structure (18) provided with at least a pair of box-like elements (19a, 19b) configured to house the stabilizing front legs (12a, 12b) or back legs, and at least a positioning seating (20) of the movement turret (14) made in a crossing zone (Z) of the box-like elements (19a, 19b); each box-like element (19a, 19b) is provided with a first end (23a, 23b) that is open and through which a respective stabilizing front leg (12a, 12b), or back leg, is slidingly mobile and a second end (25a, 25b), opposite the first end (23a, 23b) and in correspondence with which a respective stabilizing back leg (13a, 13b), or front leg, is pivoted, so as to rotate around a corresponding axis of rotation (R1, R2).

A stabilizer for a vehicle includes an actuator assembly configured to be coupled to a chassis of the vehicle and a ground pad coupled to the actuator assembly. The actuator assembly is selectively repositionable between a retracted position and a lifting position. The ground pad has a bottom surface configured to engage a support surface below the chassis. When the actuator assembly is in the lifting position, the bottom surface of the ground pad engages the support surface and the actuator assembly applies an upward force on the chassis, and when the actuator assembly is in the retracted position, the actuator assembly lifts the ground pad such that the ground pad is not in contact with the support surface.