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US 2009/0264258 A1Published application
Buffering Apparatus
OwnerChiu Hsiang LOinventor
Life of this patent
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Abstract
A treadmill includes an external frame, an internal frame connected to the external frame, a belt in the form of a loop supported on the internal frame and a buffering apparatus for buffering the internal frame. The buffering apparatus includes a crossbar and two buffer sets. The crossbar is rotationally provided on the external frame between various positions. Each of the buffer sets includes a plurality of buffering blocks made with different elastic coefficients so that a selected one of the buffering blocks is brought into contact with the internal frame when the crossbar is in a related one of the positions.
Claims9
A treadmill comprising:
- an external frame;
- an internal frame connected to the external frame;
- a belt in the form of a loop supported on the internal frame;
- and
- a buffering apparatus comprising:
- a crossbar rotationally provided on the external frame between various positions;
- and
- two buffer sets each comprising a plurality of buffering blocks made with different elastic coefficients so that a selected one of the buffering blocks is brought into contact with the internal frame when the crossbar is in a related one of the positions.
5 more elements
Dependencies are inferred from the claim text.