A magnetically-attracting crawler moving device has a magnetically-attracting traveling mechanism including a source device of magnetic force provided with a pair of magnets and a yoke disposed on the backside of the magnets or behind the magnet; a crawler belt rotationally running with drive portion thereof in non-contact with the source device of magnetic force; and a guide in contact with the pair of magnets and the yoke and on which surface the crawler belt slides, wherein the drive portion of the crawler belt protrudes from the source device of magnetic force and the guide to travel.

The invention relates to a travel system for cylindrical and/or conical surfaces, in particular for the outer surface or the inner surface of a pipe or mast (1), having: an assembly platform (4a, 4b); a plurality of connected undercarriage elements (6), preferably identical undercarriage elements (6), which form a closed ring in a circumferential direction, in particular together with the assembly platform (4a, 4b) integrated between two undercarriage elements (6); a clamping system (7) which connects at least the undercarriage elements (6) to each other and with which the distance between the connected undercarriage elements (6) can be changed; at least one other undercarriage element (8) which is situated on the assembly platform (4a, 4b) at an axial distance from the ring of connected undercarriage elements (6); wherein at least the undercarriage elements (6) connected to the ring, preferably also the undercarriage element (8) axially spaced therefrom, are each in the form of a continuous track system. The invention also relates to a continuous track vehicle (11), in particular a 2-track continuous track vehicle (11), having at least one chain guided around two spaced deflection wheels (17), in particular deflection gears (17), running surface elements (20) being secured to the links (18) of the chain, wherein the running surface elements (20) each comprise rollers (21) for contacting a driving surface, the axes of rotation of the rollers being oriented in the direction in which the deflection wheels (17) are spaced or the running surface elements (20) being displaceable relative to the associated link (18) by at least one actuator (24).

The invention relates to a travel system for cylindrical and/or conical surfaces, in particular for the outer surface or the inner surface of a pipe or mast (1), having: an assembly platform (4a, 4b); a plurality of connected undercarriage elements (6), preferably identical undercarriage elements (6), which form a closed ring in a circumferential direction, in particular together with the assembly platform (4a, 4b) integrated between two undercarriage elements (6); a clamping system (7) which connects at least the undercarriage elements (6) to each other and with which the distance between the connected undercarriage elements (6) can be changed; at least one other undercarriage element (8) which is situated on the assembly platform (4a, 4b) at an axial distance from the ring of connected undercarriage elements (6); wherein at least the undercarriage elements (6) connected to the ring, preferably also the undercarriage element (8) axially spaced therefrom, are each in the form of a continuous track system. The invention also relates to a continuous track vehicle (11), in particular a 2-track continuous track vehicle (11), having at least one chain guided around two spaced deflection wheels (17), in particular deflection gears (17), running surface elements (20) being secured to the links (18) of the chain, wherein the running surface elements (20) each comprise rollers (21) for contacting a driving surface, the axes of rotation of the rollers being oriented in the direction in which the deflection wheels (17) are spaced or the running surface elements (20) being displaceable relative to the associated link (18) by at least one actuator (24).

A reconfigurable joint track compound mobile robot has a main vehicle body, yaw joints and an auxiliary track module. The main vehicle body has a main track, and a clutch brake and a first wheel joint arranged in a main track driving wheel. A second wheel joint is arranged in a main track driven wheel. The main vehicle body is provided with main track driving mechanisms and a wheel joint driving mechanism. The main track driving wheel is driven to rotate by the main track driving mechanisms, which are connected with the clutch brake. The second wheel joint is driven to rotate by the wheel joint driving mechanism. Each wheel joint is correspondingly connected with the yaw joints, which are rotatably connected with the auxiliary track module. A yaw driving mechanism that drives the auxiliary track module to swing is arranged in each yaw joint.

A reconfigurable joint track compound mobile robot has a main vehicle body, yaw joints and an auxiliary track module. The main vehicle body has a main track, and a clutch brake and a first wheel joint arranged in a main track driving wheel. A second wheel joint is arranged in a main track driven wheel. The main vehicle body is provided with main track driving mechanisms and a wheel joint driving mechanism. The main track driving wheel is driven to rotate by the main track driving mechanisms, which are connected with the clutch brake. The second wheel joint is driven to rotate by the wheel joint driving mechanism. Each wheel joint is correspondingly connected with the yaw joints, which are rotatably connected with the auxiliary track module. A yaw driving mechanism that drives the auxiliary track module to swing is arranged in each yaw joint.

The invention relates to a hybrid surface traversing apparatus adapted to be adhered to a (e.g., submerged or in air) surface by a non-flow-through pressure differential, the apparatus includes a frame forming a chamber; a seal (e.g., closed-cell foam) having a closed seal perimeter (e.g., a closed polygon, a quadrilateral, and the like) defining an opening of the chamber, the seal perimeter adapted substantially for rolling relative to the chamber and for contact with the surface to be traversed to prevent leakage and maintain a non-flow-through seal with the surface; a suction pump structured and arranged to produce the (e.g., negative) pressure differential and cooperate with the seal to adhere the apparatus to the surface; and a drive configured to move the apparatus relative to the surface.

A mobile machine includes front and rear ends, a frame, rotatably supported ground engaging mechanisms, and an electrical drive system. The electrical drive system includes a source of electrical energy, an inverter, at least one electric motor operatively coupled to rotate at least one of the ground engaging mechanisms, a plurality of first electric cables electrically coupling the source of electrical energy to the inverter, and a plurality of second electric cables electrically coupling the inverter to the electric motor. The inverter is disposed in the mobile machine in a vertical orientation at the rear end of the machine.

A patient support apparatus for traversing objects supported on ground surfaces. The patient support apparatus comprises a patient support deck, and a base to support the patient support deck from the ground surface. At pair of caster wheel assemblies spaced from each other are coupled to the base for pivoting movement about respective pivot axes cooperating to define a reference plane. A frame guard coupled to the base defines first and second ramp surfaces each disposed at an angle relative to the reference plane. The first ramp surface is arranged to engage objects before they contact one or more of the caster wheels when the patient support apparatus moves in a first direction. The second ramp surface is arranged to engage objects before they contact one or more of the caster wheels when the patient support apparatus moves in an opposite, second direction.

A motorized walker that employs a wide angle triangular track suspension system on both sides with an elevated drive sprocket and a deployable self-balancing stand-on platform suspended from the axle of the drive sprocket that the user may use or not, depending on their walking comfort level. With or without the platform deployed the walker with track system is capable of overcoming large obstacles and steep inclines, for rough terrain applications, where a relatively large pivot angle is needed.

A motorized walker that employs a wide angle triangular track suspension system on both sides with an elevated drive sprocket and a deployable self-balancing stand-on platform suspended from the axle of the drive sprocket that the user may use or not, depending on their walking comfort level. With or without the platform deployed the walker with track system is capable of overcoming large obstacles and steep inclines, for rough terrain applications, where a relatively large pivot angle is needed.