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US 5,769,434 AGranted
Sports equipment or vehicles with runners with interchangeable blade
OwnerHolger Wurthnerinventor
Life of this patent
Estimating the term…
Abstract
A skating appliance or vehicle having a skate with a plastic base and a composite running blade exchangeably secured thereto. The exchangeable composite running blade is secured with the high resistance to torsion and flexure as well as high security against fracture, by means of an on edge mounted profiled stabilizing rail set into the lower side of the base, and easy to handle screwable holding members, and a corresponding design of the individual parts. These elements allow an arrangement to be obtained which as a whole has a low weight and a high resistance to pressure.
Claims23
A runner, said runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade,
- a stabilization rail integral with the lower side of the base unit, said stabilization rail having an upper edge and a lower edge, said runner blade being in contact with the stabilization rail and
- wherein a plurality of transverse openings pass through said stabilization rail and said runner blade, respectively, into each of which is inserted a retaining means for holding together the stabilization rail and the runner blade, and said base unit has a series of tubular transverse cutouts for weight reduction, with one transverse opening arranged for the retaining means arranged on each side of each transverse cutout.
1 more element
A runner according to claim 11, wherein said runner blade makes contact with lower edges of the base unit and the stabilization rail respectively, by means of shoulders projecting upward.
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade, and
- a stabilization rail integral with the lower side of the base unit, said stabilization rail having an upper edge and a lower edge and wherein said runner blade has a continuous, essentially vertical slot, into which the lower edge of the stabilization rail is inserted.
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade, and
- a stabilization rail integral with the lower side of the base unit, said stabilization rail having an upper edge and a lower edge and wherein said stabilization rail has a continuous, essentially vertical slot tapering upwards in the form of a wedge, into which is inserted a likewise upward-tapered flat ridge of the runner blade.
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade, and
- wherein said base unit has a sole rim surrounding the sole of an ice skate boot, said boot is welded to said sole.
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade,
- a serrated steel blade with teeth projecting downward and forward is fastened to the forward part of the runner blade, and
- wherein said runner blade has support teeth that extend over the serrated steel blade and project into the middle area of the teeth of said serrated steel blade.
1 more element
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade, and
- a stabilization rail integral with said bottom side of said base unit, a plurality of transverse openings each passing through said stabilization rail and said running blade are provided, and fastening means extending through said transverse openings to hold together said stabilization rail and said running blade.
A runner comprising:
- a base unit having a top side and a bottom side and an interchangeable runner blade fastened to said bottom side of said base unit,
- said runner blade including a contact blade on a bottom side of said runner blade, said contact blade having gripping ridges embedded into said runner blade, and
- wherein said runner blade consists of a lightweight heat insulating material and said contact blade is formed of an extremely thin layer and constitutes the gliding surface of the runner, whereby when the contact blade glides over ice it warms rapidly due to friction and due to the insulating effect of the runner blade the heat in the contact blade does not flow into the runner blade.
A runner comprising:
- a base unit;
- an interchangeable runner blade formed of a light weight material and fastened to said base unit;
- and
- a contact blade formed of a hard-resilient material integral to a bottom side of said runner blade, said contact blade having gripping ridges in the form of boxes open in a longitudinal direction of the contact blade and having trapezoidal side faces, said gripping ridges being embedded into the material of said runner blade and penetrated by the material of said runner blade.
1 more element
A runner comprising:
- a base unit;
- a stabilization rail integral with a lower side of the base unit, said stabilization rail having a slot tapering upwards in the form of a wedge;
- a runner blade formed of a light weight material and having a tapered ridge on a top side, said tapered ridge being inserted into said vertical slot of said stabilization rail;
- and
- a contact blade formed of a hard resilient material integral to a bottom side of said runner blade, said contact blade having gripping ridges embedded into the material of said runner blade.
2 more elements
A runner comprising:
- a base unit;
- a stabilization rail integral with a lower side of the base unit with a plurality of transverse openings passing therethrough, said stabilization rail having a slot tapering upwards in the form of a wedge;
- a runner blade formed of a light weight material with a plurality of transverse openings passing therethrough and having a tapered ridge on a top side, said tapered ridge being inserted into said vertical slot of said stabilization rail whereby said transverse openings in said stabilization rail align with said transverse openings in said runner blade;
- a plurality of retaining means for fastening together the stabilization rail and the runner blade, each of said plurality of retaining means extending through one of said transverse openings in said runner blade and one of said transverse openings in said stabilization rail;
- and
- a contact blade formed of a hard resilient material integral to a bottom side of said runner blade, said contact blade having gripping ridges embedded into the material of said runner blade.
3 more elements
Dependencies are inferred from the claim text.