Exercise devices – User manipulated force resisting apparatus – component... – Utilizing weight resistance
Patent
1994-10-27
1995-08-15
Apley, Richard J.
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing weight resistance
482908, 482 97, 482102, 482138, A63B 21068
Patent
active
054414709
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.
REFERENCES:
patent: 4632390 (1986-12-01), Richey
patent: 4746115 (1988-05-01), Lahman
patent: 4768775 (1988-09-01), Marshall
patent: 4779864 (1988-10-01), Henson
patent: 5330405 (1994-07-01), Habing et al.
Apley Richard J.
Hwang Victor K.
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