US 4,402,502 A · Exerciser for disabled persons

Abstract

In an exerciser, limb supports are provided for reducing limb spasms during exercising and holding the limbs in place. The lower supports are adapted for attachment to the foot pedals and are generally L-shaped in section for supporting the foot and calf of the leg. A tether holds the support in position when it is not in use. The upper supports are removably secured to the hand grips and support the operator's wrist and forearm. Both supports are strapped to the appropriate limb. The motorized drive for the lower and upper crank arms includes a clutch of the overriding type so that the operator can temporarily use muscle power to turn the hand cranks faster than the speed of the motor drive itself without deactivating the motor drive or disengaging the clutch or changing the drive of the pedals. The exerciser is fixedly mounted on a platform which is of a size sufficient to receive a wheelchair so that a wheelchair confined person can have the benefits of the device. The exerciser includes a fully protective housing extending from the top of the drive mechanism to the bottom supporting platform, with the housing including upper and lower telescoping portions. The upper housing portion, together with its internal mechanism, is pivotable relative to the lower housing portion to provide fore-and-aft adjustment of the upper crank arms.

Claims4

Dependent claims

An exerciser for disabled persons or the like, comprising in combination:

(a) a frame mounted to a base,
(b) rotatable pedal cranks and hand cranks for connection with the limbs of the operator, and with said pedal cranks having pedals rotatably mounted thereon and with said hand cranks having handles thereon,
(c) means associated with at least one of said cranks to firmly hold the operator's respective limb in aligned position relative to his body during rotation of said cranks, said holding means comprising:
(1) a generally L-shaped rigid leg support having a flat footrest portion which merges into an elongated curved calf-nesting portion,
(2) and means securing said footrest portion to said rotatable pedal,
(d) a housing disposed on said frame,
(e) and a flexible tether connected between said calf-nesting portion of said leg support and said housing,
(f) said flexible tether forming means to hold said leg support against pivoting by gravity into engagement with said base when said rotatable pedal crank is not in use, while freeing said leg support from restraint during use of said pedal crank.

5 more elements

An exerciser for disabled persons or the like, comprising in combination:

(a) a frame mounted to a base,
(b) rotatable pedal cranks and hand cranks for connection with the limbs of the operator, and with said pedal cranks having pedals rotatably mounted thereon and with said hand cranks having open-ended soft rubber handles thereon,
(c) means associated with at least one of said cranks to firmly hold the operator's respective limb in aligned position relative to his body during rotation of said cranks, said holding means comprising:
(1) a generally L-shaped rigid leg support having a flat footrest portion which merges into an elongated curved calf-nesting portion,
(2) and means securing said footrest portion to said rotatable pedal,
(d) a housing disposed on said frame,
(e) a flexible tether connected between said calf-nesting portion of said leg support and said housing,
(f) said flexible tether forming means to hold said leg support against pivoting by gravity into engagement with said base when said rotatable pedal crank is not in use, while freeing said leg support from restraint during use of said pedal crank,
(g) a rigid arm support having an elongated curved forearm-nesting portion,
(h) a tubular member disposed on one end of said arm support and with said tubular member being frictionally slideable over the open end of a said hand crank handle to provide removable connector means between said arm support and said handle,
(i) motive means,
(j) first drive means responsive to said motive means for directly and rotatably driving said pedal cranks,
(k) second drive means responsive to said motive means for rotatably driving said hand cranks,
(l) and means connecting said second drive means to said first drive means so that said pedal cranks and said hand cranks are driven in unison by said motive means at given speeds,
(m) said connecting means including overriding clutch means for permitting only said hand cranks to free wheelingly rotate faster than their said given speed while said pedal cranks continue to be directly driven at their given speed.

12 more elements

An exerciser for disabled persons or the like, comprising in combination:

(a) a frame mounted to a base,
(b) rotatable pedal cranks and hand cranks for connection with the limbs of the operator, and with said pedal cranks having pedals rotatably mounted thereon and with said hand cranks having open-ended soft rubber handles thereon,
(c) means associated with at least one of said cranks to firmly hold the operator's respective limb in aligned position relative to his body during rotation of said cranks, said holding means comprising:
(1) a generally L-shaped rigid leg support having a flat footrest portion which merges into an elongated curved calf-nesting portion,
(2) and means securing said footrest portion to said rotatable pedal,
(d) a housing disposed on said frame,
(e) a flexible tether connected between said calf-nesting portion of said leg support and said housing,
(f) said flexible tether forming means to hold said leg support against pivoting by gravity into engagement with said base when said rotatable pedal crank is not in use, while freeing said leg support from restraint during use of said pedal crank,
(g) a rigid arm support having an elongated curved forearm-nesting portion,
(h) a tubular member disposed on one end of said arm support and with said tubular member being frictionally slideable over the open end of a said hand crank handle to provide removable connector means between said arm support and said handle,
(i) motive means,
(j) first drive means responsive to said motive means for directly and rotatably driving said pedal cranks,
(k) second drive means responsive to said motive means for rotatably driving said hand cranks,
(l) means connecting said second drive means to said first drive means so that said pedal cranks and said hand cranks are driven in unison by said motive means at given speeds,
(m) said connecting means including overriding clutch means for permitting only said hand cranks to free wheelingly rotate faster than their said given speed while said pedal cranks continue to be directly driven at their given speed,
(n) said housing having a fixed lower portion and an upper portion telescoping with said lower portion, said upper portion and said hand cranks being pivotable together about an axis extending through said chamber,
(o) a pair of converging arms connected to said frame and disposed adjacent said axis,
(p) one of said arms being mounted for pivotal movement with said upper housing about said axis,
(q) the outer arm ends and said upper housing having coextensive curved slots disposed therein,
(r) and bolt means disposed within said slots for permitting pivoted adjustment of said one arm and said upper housing about said axis.

17 more elements

Dependencies are inferred from the claim text.

Exerciser for disabled persons

Life of this patent

Exerciser for disabled persons

Life of this patent

Abstract

Claims4