A wheel of a roller includes a roller axis, the wheel being driven by an electric motor, wherein the electric motor is a hub motor which drives a hub body, which extends with circumferential spacing and surrounds the wheel axle, relative to the fixed wheel axle, wherein furthermore the wheel has a running surface. The running surface is formed on a running surface carrier and the running surface carrier is supported flush on the hub body at the back of the running surface. Further, a manually movable load truck includes one or more rollers, of which at least one roller has a driven wheel. Further, an operating device, in particular for a manually movable load truck, is formed having a substantially annular cross-section having a central through opening.

The disclosure provides a wheel for an omnidirectional moving device which takes fewer man-hours for manufacturing, and a manufacturing method of the wheel for an omnidirectional moving device which takes fewer man-hours. The wheel includes an annular core body 36; a plurality of bearings 75 each including an inner ring 76 and an outer ring 77 relatively rotatable with respect to the inner ring, and the inner ring being fixed to an outer peripheral surface of the core body; and a plurality of rollers 37 each fixed to the outer ring and rotatably supported by the core body via the bearing. The inner ring is tightened and fitted to the core body.

The disclosure provides a wheel for an omnidirectional moving device which takes fewer man-hours for manufacturing, and a manufacturing method of the wheel for an omnidirectional moving device which takes fewer man-hours. The wheel includes an annular core body 36; a plurality of bearings 75 each including an inner ring 76 and an outer ring 77 relatively rotatable with respect to the inner ring, and the inner ring being fixed to an outer peripheral surface of the core body; and a plurality of rollers 37 each fixed to the outer ring and rotatably supported by the core body via the bearing. The inner ring is tightened and fitted to the core body.

A gate roller assembly includes a bracket that has a vertical portion and a horizontal portion. The vertical portion is positioned against a gate having the horizontal portion extending away from the gate. A plurality of bolts is provided and each of the bolts extends through the vertical portion of the bracket to engage the gate for retaining the bracket on the gate. A plurality of nuts is provided and each of the nuts threadably engages a respective one of the bolts for retaining the first plate on the gate. A roller is rotatably disposed on the horizontal portion of the bracket to roll along the support surface when the gate is opened or closed.

A wheel for an omnidirectional moving device includes an annular core body formed by connecting joint members in an annular shape, and free rollers rotatably supported by the core body. Each of the joint members includes a shaft portion having a first end and a second end, a first connecting portion provided at the first end, and a second connecting portion provided at the second end. Each of the free rollers is rotatably supported by the shaft portion of the corresponding joint member. The first connecting portion of each of the joint members is rotatably connected to the second connecting portion of the adjacent joint member. The first end of each of the joint members abuts on the second end of the adjacent joint member so that a rotation range of the adjacent joint members is restricted. A cushioning material is provided between the first end and the second end.

A wheel for an omnidirectional moving device includes an annular core body formed by connecting joint members in an annular shape, and free rollers rotatably supported by the core body. Each of the joint members includes a shaft portion having a first end and a second end, a first connecting portion provided at the first end, and a second connecting portion provided at the second end. Each of the free rollers is rotatably supported by the shaft portion of the corresponding joint member. The first connecting portion of each of the joint members is rotatably connected to the second connecting portion of the adjacent joint member. The first end of each of the joint members abuts on the second end of the adjacent joint member so that a rotation range of the adjacent joint members is restricted. A cushioning material is provided between the first end and the second end.

Holonomic bases, and drive shafts and roller assemblies that can be used in the holonomic bases. In some implementations, a holonomic base includes at least two pairs of roller assemblies, with each of the pairs being coupled to a corresponding drive shaft. In some of those implementations, each of the roller assemblies of each pair includes three roller segments that are each coupled to the corresponding drive shaft and that each include an exposed outward facing spherical zone that approximates a portion of the surface of a sphere. The roller segments of each roller assembly are in fixed relation to one another relative to the rotational axis of a drive shaft to which the roller assembly is coupled, but the roller segments each freely rotate about a corresponding roller segment rotational axis that extends outward from the drive shaft.

Holonomic bases, and drive shafts and roller assemblies that can be used in the holonomic bases. In some implementations, a holonomic base includes at least two pairs of roller assemblies, with each of the pairs being coupled to a corresponding drive shaft. In some of those implementations, each of the roller assemblies of each pair includes three roller segments that are each coupled to the corresponding drive shaft and that each include an exposed outward facing spherical zone that approximates a portion of the surface of a sphere. The roller segments of each roller assembly are in fixed relation to one another relative to the rotational axis of a drive shaft to which the roller assembly is coupled, but the roller segments each freely rotate about a corresponding roller segment rotational axis that extends outward from the drive shaft.

A multi-wheel system that minimizes wheel interactions with discontinuous and uneven surfaces. The multi-wheel system comprises wheels of varying diameters connecting to a rotating arm configured to raise and lower the wheels in response to obstacles along the rolling surface.

In various embodiments, a zero-turn radius robotic base may comprise a substantially rectangular (e.g., rectangular) base portion that comprises a plurality of wheels. In various embodiments, the plurality of wheels are configured to support the robotic base adjacent a support surface (e.g., the ground, a suitable flooring surface within a building, etc.). In some embodiments, the robotic base comprises a first and second driving wheel and a plurality of stability wheels. In some embodiments, an axis of rotation of the first and the second driving wheel are collinear. In various embodiments, the plurality of stability wheels are spaces apart from the axis of rotation of the first and second driving wheels to provide stability to the robotic base.