Treadmill Deck
First Claim
Patent Images
1. A treadmill deck assembly comprising:
- a rigid deck support having a broad top surface configured to extend at least substantially the width of a treadmill belt;
a rigid or semi-rigid deck insert disposed on the top surface of the deck support and comprising;
a fibrous deck insert core of less than about 5/16 inch, having a first broad top face and a second broad bottom face;
a phenolic impregnated fibrous layer laminated to the first and second broad face of the deck insert core to provide a reduced friction wear surface for the treadmill belt.
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Accused Products
Abstract
A laminated treadmill deck insert includes a wear surface formed of a phenolic impregnated paper laminated to an isocyanate resin bonded MDF insert core less than about 5/16 inch thick. A low moisture content isocyanate resin bonded wood fiber MDF core enables dimensional stability and high internal bonding strength even at reduced insert thicknesses. The deck insert is disposed on a support deck adjacent the upper run of an endless treadmill belt. The insert is provided with wear surfaces on each broad side and is easily removable and reversible to expose the second wear surface.
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Citations
20 Claims
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1. A treadmill deck assembly comprising:
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a rigid deck support having a broad top surface configured to extend at least substantially the width of a treadmill belt; a rigid or semi-rigid deck insert disposed on the top surface of the deck support and comprising; a fibrous deck insert core of less than about 5/16 inch, having a first broad top face and a second broad bottom face; a phenolic impregnated fibrous layer laminated to the first and second broad face of the deck insert core to provide a reduced friction wear surface for the treadmill belt. - View Dependent Claims (2, 3, 4)
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5. A treadmill deck insert comprising:
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a rigid or semi-rigid core of medium density fibers bonded with isocyanate resin, the core having a thickness of less than about 5/16 inch, having a first broad face and a second broad face and a moisture content of less than about four percent; a phenolic impregnated fibrous layer laminated to each of the first and second broad faces of the core and configured as a wear surface for use with a belt of a treadmill. - View Dependent Claims (6, 7, 8, 9, 10, 13, 14)
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11. A treadmill comprising:
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a frame having first and second opposed ends; a first powered roller disposed at the first frame end; a second roller disposed at the second frame end; a treadmill deck having an upper broad surface and a lower broad surface and being supported on the frame between the first and second rollers; a continuous belt trained about the first and second rollers over the upper broad surface of the deck; a deck insert disposed on the upper broad surface of the deck adjacent the belt, the insert comprising a phenolic resin impregnated kraft paper layer laminated to first and second broad surfaces of a medium density fiber isocyanate resin bonded core having a moisture content of less than about 4% and a thickness of less than about 5/16 inch. - View Dependent Claims (12)
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15. A method of manufacturing a treadmill deck insert comprising the steps of:
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providing a rigid or semi-rigid fibrous substrate having a first broad surface and second broad surface and a moisture content of less than about four percent; saturating kraft paper to between about 55-75% by weight with phenolic resin; disposing a first layer of the phenolic saturated kraft paper on the first broad surface of the substrate; disposing a second layer of the phenolic saturated kraft paper on the second broad surface of the substrate; laminating the paper layers to the substrate at high temperature and pressure to form a deck insert having a low friction wear surface on opposite broad faces of the insert. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification