Height-adjusting device for an exercise apparatus
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United States of America Patent
Stats
-
Aug 15, 1995
Grant Date -
N/A
app pub date -
Oct 27, 1994
filing date -
Oct 27, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A height-adjusting device for an exercise apparatus has a wedge unit mounted adjustably between a load-carrying member and two lifting levers to lift the load-carrying member. The wedge unit includes a U-shaped inner body sleeved on the load-carrying member and having two opposed first vertical plates and a first bottom plate interconnecting bottom ends of the first vertical plates. Each first vertical plate has first and second end portions. A U-shaped outer body has two opposed second vertical plates disposed outwardly of the first vertical plates, and a second bottom plate interconnecting bottom ends of the second vertical plates. Each second vertical plate has one end portion provided with a roller, another end portion pivoted to a lower section of the second end portion, and a top bearing end. A stop bolt bridges top ends of the second end portions. A lever plate has one end portion with a pair of pivot lugs pivoted to the first end portions, another end portion extending toward the stop bolt, and a locking pin projecting from the lever plate into the load-carrying member when the lever plate bears against the stop bolt. The pivot lugs have bottom cam surfaces engageable with the top bearing ends to immobilize the lever plate.
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