Treadmill with vertically displaceable platform
AssigneeNIKE, Inc.
InventorsJeffrey A. Beyer, Stacy E. Stamm, Jay T. Worobets, Brian R. Brothers, Andrew James Lewis, Thomas J. Sawarynski, JR., Edward F. Wettlaufer, JR.
Life of this patent
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Abstract
A treadmill has a base with a vertically displaceable platform. A mechanism is provided that resists the downward movement of the platform in response to a load applied to the platform. The mechanism also rebounds the platform upwardly with a force applied to the platform in response to a decrease of a load on the platform. A support structure enables stable vertical positioning of the platform with respect to the base.
Claims20
A treadmill, comprising:
- a base;
- and
- a platform supported by a pair of scissor frameworks connected to the base, each scissor framework comprising:
- a first scissor arm, comprising:
- a first end coupled to the platform, and
- a second end coupled to the base;
- and
- a second scissor arm, comprising:
- a first end coupled to the base, and
- a second end coupled to the platform,
- wherein an intermediate portion of the first scissor arm is pivotally coupled to an intermediate portion of the second scissor arm such that the first scissor arm and the second scissor arm can pivot relative to each other.
A displacement apparatus for a treadmill with a base and a platform, the displacement apparatus comprising:
- a pair of scissor frameworks, each comprising:
- a first scissor arm, comprising:
- a first end that couples to the platform, and
- a second end that couples to the base;
- and
- a second scissor arm, comprising:
- a first end that couples to the base, and
- a second end that couples to the platform,
- wherein each scissor framework is configured to be pivotable and slidable between the base and the platform.
A treadmill, comprising:
- a base;
- a platform;
- and
- a scissor framework extending between the base and the platform,
- wherein the platform comprises a combination of metal, carbon fiber, and foam.
Dependencies are inferred from the claim text.