An adjustable roller skate is provided with a lower frame including a toe stop; a wheel assembly secured to the lower frame; an upper frame including a groove, a trough disposed rearward of the groove, a channel at a rear end, and a seat disposed in the trough and having a recess communicating with the channel; an adjustment mechanism including an externally threaded shaft disposed in both the channel and the recess, and a handle pivotably secured to a rear end of the externally threaded shaft and disposed externally of the upper frame; a sole including a toe cap, an internally threaded member on an underside of a rear end and threadedly secured to the externally threaded shaft, and a stem on the underside and slidably disposed in the groove; and a shoe disposed around an edge of the sole with the toe cap concealed.

An adjustable roller skate is provided with a lower frame including a toe stop; a wheel assembly secured to the lower frame; an upper frame including a groove, a trough disposed rearward of the groove, a channel at a rear end, and a seat disposed in the trough and having a recess communicating with the channel; an adjustment mechanism including an externally threaded shaft disposed in both the channel and the recess, and a handle pivotably secured to a rear end of the externally threaded shaft and disposed externally of the upper frame; a sole including a toe cap, an internally threaded member on an underside of a rear end and threadedly secured to the externally threaded shaft, and a stem on the underside and slidably disposed in the groove; and a shoe disposed around an edge of the sole with the toe cap concealed.

A wearable device configured to selectively provide roller transportation, the wearable device including a shoe, a plurality of wheel assemblies, each wheel assembly being configured to selectively roll relative to a ground surface about an associated axis of rotation, and a frame connected between the wheel assemblies, the frame comprising a trunk and a plurality of branches extending from the trunk, each of the branches being configured for connection to at least one of the plurality of wheel assemblies, wherein at least a portion of the shoe is located vertically higher than at least a portion of the frame when at least one of the wheel assemblies is in contact with the ground surface and the at least one of the wheel assemblies is positioned to selectively roll relative to the ground surface.

A wearable device configured to selectively provide roller transportation, the wearable device including a shoe, a plurality of wheel assemblies, each wheel assembly being configured to selectively roll relative to a ground surface about an associated axis of rotation, and a frame connected between the wheel assemblies, the frame comprising a trunk and a plurality of branches extending from the trunk, each of the branches being configured for connection to at least one of the plurality of wheel assemblies, wherein at least a portion of the shoe is located vertically higher than at least a portion of the frame when at least one of the wheel assemblies is in contact with the ground surface and the at least one of the wheel assemblies is positioned to selectively roll relative to the ground surface.

A low-rider roller skate having a first sole, a pair of front wheels attached to a front axle that is mounted to a front portion of the first sole, and a pair of wheels attached to a rear axle that is mounted to a rear portion of the first sole. The skate defines a longitudinal length, where the rear axle is perpendicular to the length, and the front axle is disposed at an angle to the length, such that the front axle is not parallel with the rear axle. The roller skate including a second sole member including a cap toe sized for receiving a toe-portion of the roller skate, and second heel that rests over a heel-portion of the roller skate, and an integral waist therebetween, the waist includes a front indent for receiving the front axle, and a rear indent for receiving the rear axle. With the second sole member attached, the skates no longer act as roller skates but are walking shoes. With the second sole member removed, the skates are low-rider skates.

A low-rider roller skate having a first sole, a pair of front wheels attached to a front axle that is mounted to a front portion of the first sole, and a pair of wheels attached to a rear axle that is mounted to a rear portion of the first sole. The skate defines a longitudinal length, where the rear axle is perpendicular to the length, and the front axle is disposed at an angle to the length, such that the front axle is not parallel with the rear axle. The roller skate including a second sole member including a cap toe sized for receiving a toe-portion of the roller skate, and second heel that rests over a heel-portion of the roller skate, and an integral waist therebetween, the waist includes a front indent for receiving the front axle, and a rear indent for receiving the rear axle. With the second sole member attached, the skates no longer act as roller skates but are walking shoes. With the second sole member removed, the skates are low-rider skates.

A skateboard truck (200, 300), including a hanger (102, 102) carrying an axle (104), and a baseplate (108, 108). The axle holds a pair of wheels, which are steered in unison by the axle. The baseplate is coupled to the hanger to permit hanger rotation about a dynamic hanger rotation axis (138). A static mechanism (202, 302) enforces a static pivot point at a locus (111, 109) through which the dynamic hanger rotation axis passes during turning operation. Also, a dynamic mechanism (204, 402) causes the dynamic hanger rotation axis to pass through a plurality of dynamic hanger pivot points during that turning operation. Roll of the baseplate about a skateboard roll axis (152) is operable to cause a steering rotation of the axle, and also changes the action angle (150) of the truck.

A skateboard truck (200, 300), including a hanger (102, 102) carrying an axle (104), and a baseplate (108, 108). The axle holds a pair of wheels, which are steered in unison by the axle. The baseplate is coupled to the hanger to permit hanger rotation about a dynamic hanger rotation axis (138). A static mechanism (202, 302) enforces a static pivot point at a locus (111, 109) through which the dynamic hanger rotation axis passes during turning operation. Also, a dynamic mechanism (204, 402) causes the dynamic hanger rotation axis to pass through a plurality of dynamic hanger pivot points during that turning operation. Roll of the baseplate about a skateboard roll axis (152) is operable to cause a steering rotation of the axle, and also changes the action angle (150) of the truck.

A summer style ski having three different types of wheels aligned to allow the ski to travel on non-snow or ice surfaces and to create the feel of carving or turning on a paved surface.

A summer style ski having three different types of wheels aligned to allow the ski to travel on non-snow or ice surfaces and to create the feel of carving or turning on a paved surface.