Provided is a turning function-equipped having a reduced size and having improved strength to an external shock force and improved reliability. The turning function-equipped hub unit includes: a hub unit main body; a unit support member; and a turning actuator. The unit support member is provided to a chassis frame component. The unit support member includes an abutment part with which a part of the hub unit main body is brought into abutment in a vertical direction during non-normal time, the abutment part being separated from the hub unit main body in the vertical direction during normal time, and the non-normal time in which the abutment is caused, is a time when an impact load equal to or greater than a predetermined value acts on the hub unit main body in the vertical direction due to an external force from the wheel.

A vehicle can include a first wheel, a second wheel, and a steering system. Either both the first wheel and the second wheel can be front wheels or both the first wheel and the second wheel can be rear wheels. The steering system can be configured to concurrently cause: (1) a steering angle of the first wheel to be at a first angle and (2) a steering angle of the second wheel to be at a second angle. A difference angle can be a difference of the first angle subtracted from the second angle and can be greater than an angle determined to comply with Ackermann steering geometry. Such a difference angle can act to securely brake the vehicle when the vehicle is parked at a location at which a three-dimensional shape of a topological relief of the location can complicate an effort to securely brake the vehicle.

An electrically operated steering system (1) is provided for a vehicle (2) with a rack (3) for attaching the steering system (1) to a frame of the vehicle (2), two steerable wheels (4) that are pivotably attached to the rack (3), a rod element (5) arranged on the rack (3), which is slidable in its longitudinal direction in relation to the rack (3), a kinematic unit (13), which is coupled to the rod element (5) and which transforms a movement of the rod element (5) into a steering rotation of the wheels (4), an electric machine (6), which is mechanically connected to the rod element (5) for effecting the movement of the rod element (5), and a lateral force absorbing mechanism (7), which is configured for absorbing a lateral force produced by the kinematic unit (13) in relation to the rod element (5).

A dual-mode active rear-wheel steering device, including: a steering angle control motor, a speed-reduction mechanism, a differential mechanism assembly, two steering motion conversion mechanisms, a first electromagnetic clutch and a second electromagnetic clutch. An output end of the steering angle control motor is connected to the speed-reduction mechanism. The differential mechanism assembly is a bevel gear differential, in which center holes at outer ends a two half shafts are respectively provided with a raceway to form an inner cyclical ball-lead screw-nut pair with a first lead screw and a second lead screw of the steering motion conversion mechanisms. The first lead screw and the second lead screw are the same in parameters but with opposite rotation direction. The first electromagnetic clutch controls connection between a differential housing and a frame. The second electromagnetic clutch controls connection between the differential housing and the second half shaft.

One example steering mechanism includes a first steering gear, where the first steering gear is configured to convert obtained driving force to transmit driving force to an outer-side wheel during steering, to control steering force applied to the outer-side wheel. The example steering mechanism includes a second steering gear, where the second steering gear is configured to convert obtained driving force to transmit driving force to an inner-side wheel during steering, to control steering force applied to the inner-side wheel. The first steering gear and the second steering gear are connected by using a first clutch. If the first clutch is in a disengaged state, driving force is not transmitted between the first steering gear and the second steering gear. If the first clutch is in an engaged state, driving force is transmitted between the first steering gear and the second steering gear.

An axle assembly is provided for a working machine. The axle assembly includes an axle having first and second ends, the first end having a first wheel mount for pivotably mounting a first wheel to the axle and the second end having a second wheel mount for pivotably mounting a second wheel to the axle. The assembly has a steering arrangement for pivoting the first and second wheel mounts relative to the axle, the steering arrangement having a linkage connected to the first and second wheel mounts and configured to pivot the first and second wheel mounts relative to the axle. The steering arrangement also includes an actuator configured to actuate the steering linkage in order to effect pivoting of the first and second wheel mounts, and the actuator is directly connected to the steering linkage.

A vehicle is provided of which the four wheels are steerable, and which is prevented from unexpectedly moving forward or backward when switching the travel mode. The vehicle includes a steering device for front right and front left wheels of the vehicle capable of steering the front right and front left wheels, respectively, in one and the other of the right and left directions, a steering device for rear right and rear left wheels of the vehicle configured, simultaneously when the steering device for the front right and front left wheels are actuated, to be capable of steering the rear right and rear left wheels in the other and the one of the right and left directions, respectively, and in-wheel motors provided in at least one of each of the front right and front left wheels and each of the rear right and rear left wheels.

A vehicle is provided of which the four wheels are steerable, and which is prevented from unexpectedly moving forward or backward when switching the travel mode. The vehicle includes a steering device for front right and front left wheels of the vehicle capable of steering the front right and front left wheels, respectively, in one and the other of the right and left directions, a steering device for rear right and rear left wheels of the vehicle configured, simultaneously when the steering device for the front right and front left wheels are actuated, to be capable of steering the rear right and rear left wheels in the other and the one of the right and left directions, respectively, and in-wheel motors provided in at least one of each of the front right and front left wheels and each of the rear right and rear left wheels.

A steering axle (20) for a steerable vehicle includes an axle housing (1), a first steering knuckle (4), a second steering knuckle (5), a steering motor (6), and a steering gear (16). The first steering knuckle (4) and the second steering knuckle (5) are mounted so as to be steerable in the axle housing (1). The steering axle (20) has a first flexible drive (21) that connects a first output (12) of the steering gear (16) to the first steering knuckle (4) in terms of drive, and a second flexible drive (22) that connects a second output (13) of the steering gear (16) to the second steering knuckle (5) in terms of drive, so that a rotational speed of the steering motor (6) results in a steering movement of the first steering knuckle (4) and of the second steering knuckle (5). Also disclosed is a corresponding industrial truck.

A steering mechanism for a vehicle having a frame and a prime mover is disclosed. Two steered wheels, steered by a steering mechanism, are near the front of the vehicle and a single non-steered wheel is near the rear of the vehicle. The vehicle has a deck that houses rotatable cutting blades. Portions of the deck are positioned in front of and adjacent each side of the rear wheel. A first rotatable cutting blade is positioned adjacent a first side of the rear wheel and a second rotatable cutting blade is positioned adjacent the opposite side of the rear wheel. One or more additional cutting blades are positioned in front of the rear wheel.