Provided are a sliding instrument having a low frictional resistance to the snow surface, the ice surface, or the water surface and having excellent sliding performance and a method for manufacturing the sliding instrument. A sliding instrument to slide on snow, ice, or water includes a sliding surface (1) to come into contact with the snow surface, the ice surface, or the water surface, and the sliding surface (1) has a surface roughness Ra of 1.0 m or less. A method for manufacturing the sliding instrument includes polishing a sliding surface (1) using a polishing composition slurry containing abrasives to make the sliding surface (1) have a surface roughness Ra of 1.0 m or less.

Provided are a sliding instrument having a low frictional resistance to the snow surface, the ice surface, or the water surface and having excellent sliding performance and a method for manufacturing the sliding instrument. A sliding instrument to slide on snow, ice, or water includes a sliding surface (1) to come into contact with the snow surface, the ice surface, or the water surface, and the sliding surface (1) has a surface roughness Ra of 1.0 m or less. A method for manufacturing the sliding instrument includes polishing a sliding surface (1) using a polishing composition slurry containing abrasives to make the sliding surface (1) have a surface roughness Ra of 1.0 m or less.

A skate (e.g., an ice skate) for a user (e.g., a hockey player). The skate comprises a skate boot for receiving a foot of the user and a skating device (e.g., a blade and a blade holder) disposed beneath the skate boot to engage a skating surface. The skate boot may be constructed by molding (e.g., injection molding) so as to have useful performance and/or characteristics (e.g., reduced weight; enhanced fit, comfort and range of motion; enhanced appearance; etc.) while being cost-effectively manufactured.

A skate (e.g., an ice skate) for a skater (e.g., a hockey player). The skate comprises a skate boot for receiving a foot of the skater and a skating device (e.g., a blade and a blade holder) disposed beneath the skate boot to engage a skating surface (e.g., ice). At least part of the skate boot and optionally at least part of one or more other components (e.g., the skating device) may be constructed from one or more materials (e.g., foams) molded by flowing in molding equipment during a molding process (e.g., injection molding or casting). This may allow the skate (or other footwear) to have useful performance characteristics (e.g., reduced weight, proper fit and comfort, etc.) while being more cost-effectively manufactured. Other articles of footwear are also provided.

A skate (e.g., an ice skate) for a skater (e.g., a hockey player). The skate comprises a skate boot for receiving a foot of the skater and a skating device (e.g., a blade and a blade holder) disposed beneath the skate boot to engage a skating surface (e.g., ice). At least part of the skate boot and optionally at least part of one or more other components (e.g., the skating device) may be constructed from one or more materials (e.g., foams) molded by flowing in molding equipment during a molding process (e.g., injection molding or casting). This may allow the skate (or other footwear) to have useful performance characteristics (e.g., reduced weight, proper fit and comfort, etc.) while being more cost-effectively manufactured. Other articles of footwear are also provided.

A runner for an ice skate. The runner extends along a longitudinal axis between a front end and an opposed rear end. The runner is entirely metal and has a height extending between an ice-contacting portion for engaging an ice surface and an opposed upper portion. The runner has a datum runner thickness defined between outer and inner side surfaces of the runner. The runner has one or more regions of reduced thickness that are recessed inwardly from one or both of the outer and inner surfaces. The regions have a local thickness being less than the datum runner thickness. An ice skate and method of making a runner for an ice skate are also disclosed.

A runner for an ice skate. The runner extends along a longitudinal axis between a front end and an opposed rear end. The runner is entirely metal and has a height extending between an ice-contacting portion for engaging an ice surface and an opposed upper portion. The runner has a datum runner thickness defined between outer and inner side surfaces of the runner. The runner has one or more regions of reduced thickness that are recessed inwardly from one or both of the outer and inner surfaces. The regions have a local thickness being less than the datum runner thickness. An ice skate and method of making a runner for an ice skate are also disclosed.

An ice skate comprising a blade holder having U-shaped inner and outer members that are spaced apart to define a hollow space therebetween. The U-shaped outer member has an elongated blade-supporting base and front and rear pillars that are spaced apart in a longitudinal direction of the blade holder. At least part of the elongated blade-supporting base, front pillar and rear pillar is made of a composite material such as a fiber-matrix composite material. The ice skate also has a blade comprising a runner and a body made of composite material with a matrix and a plurality of fibers embedded in the matrix.

An ice skate comprising a blade holder having U-shaped inner and outer members that are spaced apart to define a hollow space therebetween. The U-shaped outer member has an elongated blade-supporting base and front and rear pillars that are spaced apart in a longitudinal direction of the blade holder. At least part of the elongated blade-supporting base, front pillar and rear pillar is made of a composite material such as a fiber-matrix composite material. The ice skate also has a blade comprising a runner and a body made of composite material with a matrix and a plurality of fibers embedded in the matrix.

The present invention relates to a process of manufacturing skiing equipment using a high-entropy alloy, especially manufacturing for a bottom member of a ski, a blade of an ice skate shoe or the bottom member of a skiing vehicle. The high-entropy alloy is used to prepare skiing equipment, so that the skiing equipment has a small friction coefficient, obtains good speed, and can be driven with less energy, which realizes energy-saving effect.