Linkage structure of a treadmill
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United States of America Patent
Stats
-
Dec 11, 2007
Grant Date -
Nov 3, 2005
app pub date -
May 3, 2004
filing date -
May 3, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linkage structure of a treadmill, including a frame assembly and two tread board racks pivotally disposed on the frame assembly side by side. Two buffering cylinders are disposed between the tread board racks and the frame assembly. Two support arms are respectively pivotally connected with the tread board racks and slidably mounted in the frame assembly. The support arms are respectively pivotally connected with two linkages. Two ends of the two linkages distal from the support arms are respectively pivotally connected with two ends of a linking rack. The linking rack is pivotally mounted in the frame assembly. Via the support arms, the linkages and the linking rack, the side by side arranged tread board racks are drivingly connected with each other to move in reverse directions.
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