1986-02-07
1988-03-22
Apley, Richard J.
Undertaking
272134, 272145, A63B 2304
Patent
active
047323809
ABSTRACT:
An addition to a leg extension and/or leg curl machine, which is used in fixing the positions of an operator's thighs while performing the leg extension or leg curl exercise movement. It is of a simple design which consist of two rigid, frame-journaled, rotating assemblies, one of which is "T" shaped and rotates about the axis of rotation of the machine's rotating effort arm, into and out of a position of engagement with the operator's thighs, and the other of which can be selectively rotated, through operator manipulation, about an axis which is both parallel with and offset from the axis of rotation of the first, into and out of a position of interference with the first. Working together, these two rotating assemblies constitute a quick-engage/release, rigid, thigh constraint device, which employs direct thigh constraint, and is both quicker to use and more comfortable than the non-rigid thigh constraint devices experimented with to date.
REFERENCES:
patent: 717367 (1902-12-01), Ellis
patent: 1332566 (1920-03-01), Northrup
patent: 2046653 (1936-07-01), Petcoff
patent: 2446470 (1948-08-01), Godwin
patent: 2710650 (1955-06-01), Sowder
patent: 3173722 (1965-03-01), Carbonetti
patent: 3285070 (1966-11-01), McDonough
patent: 4185818 (1980-01-01), Brentham
patent: 4598908 (1986-07-01), Morgan
"Universal.RTM. Physical Conditioning Equipment", 1981-82 Catalog, p. 23, published Jun. 1, 1981.
Apley Richard J.
Bender David
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