Pull-up exercising machine with safety air buffer

Details Pull-up exercising machine with safety air buffer Pull-up exercising machine with safety air buffer

1994-01-21

1996-03-05

Apley, Richard J.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing weight resistance

482112, 482137, 482 38, A63B 2312

Patent

active

054962420

ABSTRACT:
A pull-up exercising machine including two opposite handlebars fastened to an upright frame above a base frame, a revolving axle transversely fastened to the upright frame and spaced between handlebars and the base frame, a first supporting rod perpendicularly connected to the revolving axle in the middle, a second supporting rod perpendicularly connected to the revolving axle at one end, a platform hinged to the first supporting rod, a weight holder mounted on the second supporting rod to hold weights, two connecting rods bilaterally connected between the platform and the upright frame to maintain the platform horizontal, and a retracting air cylinder connected between the second supporting rod and the base frame, for buffering the upstroke of the platform to a speed that is safe for the user.

REFERENCES:
patent: 3944198 (1976-03-01), Sakamoto
patent: 3944221 (1976-03-01), Berkestad et al.
patent: 3970292 (1976-07-01), Dachicourt et al.
patent: 4846458 (1989-07-01), Potts
patent: 4899853 (1990-02-01), Hummel
patent: 5322489 (1994-06-01), Webb et al.
patent: 5372556 (1994-12-01), Ropp
patent: 5407404 (1995-04-01), Killian et al.
Universal Exercise Equipment 1980-1981 Catalog p. 9.

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