The present steerable wheel assembly incorporates a lean-to-steer mechanism into an inner race of a roller bearing, while a wheel is mounted to an outer race of the roller bearing. A shaft extending from the mechanism is attached to a body, and the mechanism acts to steer the outer race and the wheel about a vertical steering axis when the shaft is tilted about a horizontal axis. The mechanism can be a pivot joint, providing a linear steering response, or can be a lean-to-steer mechanism that provides a non-linear response where the steering action is not consistently responsive to tilting over the expected range of tilting. The present non-linear lean-to-steer mechanisms can also be incorporated into alternative lean-to-steer devices, and alternative mechanisms can employ tracking structures to coordinate tilting motion of a first moving element with steering motion of a second moving element to provide a non-linear lean-to-steer response.

This invention relates to an improved wheel arrangement of an inline skate for improving turning capability. In this wheel arrangement, the front wheel and rear wheel and any middle wheels are disposed along a straight line that makes an acute angle with the rolling direction and with the wheels being arranged such that they are part of a substantially inverted V-shape seen in front or rear plan view. Subject of the invention are a frame, a wheel assembly, combinations of left and right frames and wheel assemblies, inline skates, a method for retrofitting a prior art frame and a replacement mount for use in such a method.

This invention relates to an improved wheel arrangement of an inline skate for improving turning capability. In this wheel arrangement, the front wheel and rear wheel and any middle wheels are disposed along a straight line that makes an acute angle with the rolling direction and with the wheels being arranged such that they are part of a substantially inverted V-shape seen in front or rear plan view. Subject of the invention are a frame, a wheel assembly, combinations of left and right frames and wheel assemblies, inline skates, a method for retrofitting a prior art frame and a replacement mount for use in such a method.

A functional shoe includes a sole, a functional part to provide a specific function to the functional shoe, a fixing part provided to fix the functional part; and a coupling part provided to be coupled to the fixing part, and directly or indirectly coupled to the sole, at an opposite side to a side coupled to the fixing part. The fixing part includes a fixing body provided to be coupled to the functional part, and a leg member formed to extend from the fixing body in a reference direction which is a direction facing the sole from the fixing body. The coupling part includes an insertion slot provided inside the coupling part to be open in a direction opposite to the reference direction such that the leg member is inserted into the insertion slot.

A functional shoe includes a sole, a functional part to provide a specific function to the functional shoe, a fixing part provided to fix the functional part; and a coupling part provided to be coupled to the fixing part, and directly or indirectly coupled to the sole, at an opposite side to a side coupled to the fixing part. The fixing part includes a fixing body provided to be coupled to the functional part, and a leg member formed to extend from the fixing body in a reference direction which is a direction facing the sole from the fixing body. The coupling part includes an insertion slot provided inside the coupling part to be open in a direction opposite to the reference direction such that the leg member is inserted into the insertion slot.

A device which may include first and second cross skate bodies each having a frame configured to support at least first and second wheels situated inline of each other, each frame having at least one compartment configured to position a corresponding power source of first and second power sources; first and second foot couplers, each foot coupler configured to couple a foot of a user to a corresponding cross skate body of the cross skate bodies; a first traction motor coupled to drive at least one of the first and second wheels of the first cross skate body; a second traction motor coupled to drive at least one of the first and second wheels of the second cross skate body; and a controller which may be configured to: receive a drive signal from a drive controller, and control the first and second traction motors to drive the corresponding wheels in accordance with the drive signal.

A ground-engaging devices that is capable of sustained rolling, stable braking, secure standing, and walking. In one preferred embodiment, the invention relates to a wheeled footwear device. In another preferred embodiment, the invention relates to a wheeled footwear platform. In yet another preferred embodiment, the invention relates to a wheeled artificial foot.

A ground-engaging devices that is capable of sustained rolling, stable braking, secure standing, and walking. In one preferred embodiment, the invention relates to a wheeled footwear device. In another preferred embodiment, the invention relates to a wheeled footwear platform. In yet another preferred embodiment, the invention relates to a wheeled artificial foot.

An integrated plastic shell skate is provided, including ice skates and roller skates, which includes a shoe inner sleeve, a plastic shoe shell and a shoe rack assembly, the shoe rack assembly is fixedly installed at the bottom of the plastic shoe shell, the shoe inner sleeve is formed by pressing once in the inner sleeve cold pressing die after pre-heating, and the plastic shoe shell is formed on the outer side of the shoe inner sleeve through the shoe shell mold, so that the plastic shoe shell and the shoe inner sleeve are integrated formed as a whole. The present disclosure has the characteristics of portability, comfort, safety, environmental protection, firmness and durability.

The subject of the invention is an in-line skate braking system designed to brake in-line skate wheels. This is achieved by an electric motor controlling the action of the brake segment on in-line skate wheels.