A mobile robotic device includes a mobile base and a mast fixed relative to the mobile base. The mast includes a carved-out portion. The mobile robotic device further includes a three-dimensional (3D) lidar sensor mounted in the carved-out portion of the mast and fixed relative to the mast such that a vertical field of view of the 3D lidar sensor is angled downward toward an are in front of the mobile robotic device.

A rotational structure is configured such that a hollow portion, in which a base member is opposed to a rotational member, is formed around a shaft member. An encoder provided in the hollow portion includes a detection target member rotated together with one of the rotational member and the base member and having a physical quantity changing in a circumferential direction, and a detector capable of detecting the physical quantity of the detection target element and rotated together with the other of the rotational member and the base member.

A rotational structure is configured such that a hollow portion, in which a base member is opposed to a rotational member, is formed around a shaft member. An encoder provided in the hollow portion includes a detection target member rotated together with one of the rotational member and the base member and having a physical quantity changing in a circumferential direction, and a detector capable of detecting the physical quantity of the detection target element and rotated together with the other of the rotational member and the base member.

New mobility components are provided that can enable a vehicle to traverse difficult terrain. In a particular aspect, vehicle leg components are provided that utilize unique degrees of freedom that can facilitate mobility. In a further aspect, vehicles are provided that contain such components.

New mobility components are provided that can enable a vehicle to traverse difficult terrain. In a particular aspect, vehicle leg components are provided that utilize unique degrees of freedom that can facilitate mobility. In a further aspect, vehicles are provided that contain such components.

Provided is a structure of a joint portion which suppresses deterioration or damage of a seal member arranged inside the joint portion. The joint portion rotates a first structure portion and a second structure portion relatively to each other. The structure of the joint portion comprises: an oil seal which is arranged in a gap portion; and a labyrinth member which is arranged on outer surfaces of the first structure portion and the second structure portion. The labyrinth member comprises a passage which communicates with the gap portion. The labyrinth member is formed so as to be attachable to the outer surface of the first structure portion and the outer surface of the second structure portion. Further, the labyrinth member is formed so as to be detachable from the first structure portion and the second structure portion.

Provided is a structure of a joint portion which suppresses deterioration or damage of a seal member arranged inside the joint portion. The joint portion rotates a first structure portion and a second structure portion relatively to each other. The structure of the joint portion comprises: an oil seal which is arranged in a gap portion; and a labyrinth member which is arranged on outer surfaces of the first structure portion and the second structure portion. The labyrinth member comprises a passage which communicates with the gap portion. The labyrinth member is formed so as to be attachable to the outer surface of the first structure portion and the outer surface of the second structure portion. Further, the labyrinth member is formed so as to be detachable from the first structure portion and the second structure portion.

A wearable exoskeleton comprises a back frame set and a lower limb link rod set. The back frame set comprises a sliding rod and an object seat. The object seat is coupled to the sliding rod and configured for carrying object. One end of the lower limb link rod set is coupled to the object seat. The back frame set is worn on the back of the user. The lower limb link rod set is worn on the lower limb of the user for responding to the flexing or erecting movements of the user's lower limb. When the other end of the lower limb link rod set contacts the ground with the action of the lower limb, the ground provides an upward reaction force, and the reaction force is transmitted to the object seat through the lower limb link rod set to push up the object.

A wearable exoskeleton comprises a back frame set and a lower limb link rod set. The back frame set comprises a sliding rod and an object seat. The object seat is coupled to the sliding rod and configured for carrying object. One end of the lower limb link rod set is coupled to the object seat. The back frame set is worn on the back of the user. The lower limb link rod set is worn on the lower limb of the user for responding to the flexing or erecting movements of the user's lower limb. When the other end of the lower limb link rod set contacts the ground with the action of the lower limb, the ground provides an upward reaction force, and the reaction force is transmitted to the object seat through the lower limb link rod set to push up the object.

A robotic device may include a spine defining a yaw axis. The robotic device may also include an arm joint rotatably connected to the spine at a first position along the yaw axis and configured to rotate about the yaw axis. The robotic device may further include an actuator including a ring that defines a bore. The spine may be fixedly connected to the ring at a second position along the yaw axis and may extend through the bore. The actuator may be connected to the arm joint and configured to rotate the arm joint about the yaw axis without rotating the spine.