A protector for protecting a skate (e.g., an ice skate) and a foot of a user (e.g., a hockey player) against impacts, such as from pucks (e.g., during shots, which can be powerful), to reduce risks of pain or injury from such impacts, in which the protector is fastenable to the skate, is configured to cover at least part of a skate boot of the skate, and may be designed to facilitate its use, including by facilitating the user donning (i.e., putting on) and doffing (i.e., removing) the skate (e.g., while the protector is fastened to the skate boot), and/or to look like the skate boot (e.g., so as to be relatively unnoticeable such that it can seem as if it is not there).

A protector for protecting a skate (e.g., an ice skate) and a foot of a user (e.g., a hockey player) against impacts, such as from pucks (e.g., during shots, which can be powerful), to reduce risks of pain or injury from such impacts, in which the protector is fastenable to the skate, is configured to cover at least part of a skate boot of the skate, and may be designed to facilitate its use, including by facilitating the user donning (i.e., putting on) and doffing (i.e., removing) the skate (e.g., while the protector is fastened to the skate boot), and/or to look like the skate boot (e.g., so as to be relatively unnoticeable such that it can seem as if it is not there).

A ground-engaging device 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.

The present utility model discloses a roller skate. The rollers are divided into the front roller group and the rear roller group, and the rear roller group is rotatably disposed at the bottom of the skate body through the reversing mechanism, so that switching of the rear roller group between line arrangement and row arrangement is realized, the scope of application of the roller skate is effectively extended, and the roller skate has higher practicability.

The present utility model discloses a roller skate. The rollers are divided into the front roller group and the rear roller group, and the rear roller group is rotatably disposed at the bottom of the skate body through the reversing mechanism, so that switching of the rear roller group between line arrangement and row arrangement is realized, the scope of application of the roller skate is effectively extended, and the roller skate has higher practicability.

A length- and width-adjustable boot including: a forward base component (BA), a rearward base component (BP), a right side (LR), a left side (LL), and a locking system for said components. The four components (BA, BP, LR, LL) are linked together by rails. The slope of the rails of one of the bases (BP or BA), with regard to the axis of symmetry of the base of the boot, is determined by the length/width ratio of the foot. The movement of any of the four components causes a movement proportional to the width and length of the foot in the other three. The locking system locks the four components of the boot to be worn.

Articles comprising one or more additively-manufactured components are provided, as are method of additively manufacturing such components. The additively-manufactured components are designed to enhance performance and use of the article, such as, but not limited to: impact protection, including for managing different types of impacts; fit and comfort; adjustability; and/or other aspects of the article. The provided methods of additive manufacturing include methods involving expandable materials and the expansion of post-additively manufactured expandable components.

An athletic shoe configured for use in sports such as but not limited to floor hockey wherein the shoe of the present invention is operable to provide a rolling lateral movement for the wearer. The shoe of the present invention includes an upper bound to the sole wherein the sole includes sidewalls and a bottom surface. Formed in the bottom surface of the sole is the roller assembly. The roller assembly includes a cavity being defined by four walls. The cavity has a wheel member mounted therein on an axle that is mounted between the front wall and rear wall of the cavity. The mounting of the axle provides the lateral rolling motion. The wheel member is movable between a first position and a second position. In the second position a portion of the wheel member extends beyond the bottom surface of the sole.

A system, method, and apparatus for replicating the experience of snow skiing on dry land using a roller land ski with an ability to move and stop consistent with mechanics of an actual snow ski. Each land ski includes a rigid platform with a binding for engagement with a specialized boot, a pair of biased omnidirectional casters supporting said rigid platform, but mounted to a top surface of said platform, and a pair of trucks with a plurality of wheels along its curved axles. A pair of specialized boots constructed out of flexible lightweight material with a stiff support structure to fortify a user's foot and ankle from the forces created by the land ski are included in this system. The method includes calibration and selection of materials for both the board and boot in order to achieve the desired experience.

A system for control of a mobility device comprising a controller for analyzing data from at least one sensor on the mobility device, wherein the data is used to determine the gait trajectory of a user. The gait data is then used to provide motion command to an electric motor on the mobility device.