Physical exercise apparatus

• US 4,290,597 A
• Filed: 03/10/1980
• Issued: 09/22/1981
• Est. Priority Date: 03/10/1980
• Status: Expired due to Term

• Current Assignee: John J. Schleffendorf
• Original Assignee: John J. Schleffendorf
• Inventors: Schleffendorf, John J.
• Primary Examiner(s): Apley, Richard J.
• Application Number:
  US06/129,115
• Time in Patent Office: 561 Days
• Field of Search: 272/85, 272/88, 272/90, 272/91, 272/61, 272/93, 272/109, 272/116 R, 272/116 A, 272/117, 272/118, 272/134, 272/143, 272/144, 272/DIG. 2, 272/DIG. 4, 272/24, 272/136 , 272/900
• US Class Current: 482/94
• CPC Class Codes: A63B 21/0615 pivoting about a fixed horizontal fulcrum
• CPC Class Codes: A63B 21/4035 for operation by hand
• CPC Class Codes: A63B 21/4047 Pivoting movement weight pivoting A63B21/0615
• CPC Class Codes: A63B 23/03508 For a single arm or leg, A63B21/0726 takes precedence
• CPC Class Codes: A63B 23/03525 Supports for both feet or both hands performing simultaneously the same movement, e.g. single pedal or single handle A63B21/0724 takes precedence

Abstract

A physical exercise apparatus for performing a wide range of exercises for the development of wide range of human skeletal muscles includes a weight means that is suspended by a line from a fixed support, and a tug line extends laterally therefrom to end portions that are gripped by the subject performing the exercises. The weight means in its gravity neutral position has a stop, and is uniquely suspended when out of that position so that the mass is stable and so that removable weights forming a part of such mass will not fall off due to inertia of motion. The support line is adjustable in effective length to adapt the apparatus to various sizes of subject and to various exercises and likewise to alter the resistance curve produced by this apparatus. Lateral force applied to the tug line in a direction away from the apparatus, produces an ever increasing isotonic resistance which gradually merges into a quasi-isometric condition at the limit of the capability of muscular contraction.

Claims

1. Physical exercise apparatus, comprising:

(a) a support bracket adapted to be fixedly secured in place;

(b) a flexible support line secured at one end to said support bracket and normally extending downwardly from the point of securement, and a free end at the opposite end of said support line;

(c) weight means secured to said free end of said support line, and supported thereby for upward swinging movement; and

(d) at least one flexible tug line secured at one end to said weight means at a point spaced from said free end of said support line for extending laterally therefrom, and having means at its other end by which a lateral tugging force may be applied thereto, whereby said weight means as it swings upwardly provides progressively greater resistance to said lateral tugging force.

2. Physical exercise apparatus according to claim 1 including a stop adapted to be fixedly secured in place, and disposed to be engaged by said weight means when no tugging force is applied to said tug line.

3. Physical exercise apparatus according to claim 1 including a restraining line connected at one end to said weight means, and having a portion wound onto a governor-controlled reel, whereby an isokinetic type of resistance can be added to said weight means in response to tugging on said tug line.

4. Physical exercise apparatus according to claim 1, said support bracket having means acting between it and said support line for varying the effective length of said support line and the effective height of its said one end.

5. Physical exercise apparatus according to claim 4, said varying means including a pair of spaced vertical flanges, each having a vertical row of apertures aligned with the other and between which said support line extends, and a pin receivable in a pair of aligned apertures for trapping an upper end portion of said support line.

6. Physical exercise apparatus according to claim 2, said stop having an elastomer-lined recess receptive of said weight means.

7. Physical exercise apparatus according to claim 1, said tugging means comprising a centrally connected bar adapted to be gripped by two hands.

8. Physical exercise apparatus according to claim 1, said tugging means comprising a looped strap through which the head may extend.

9. Physical exercise apparatus according to claim 1 including two of said tug lines, said tugging means comprising separate hand grips connected to said other ends of said tug lines respectively.

10. Physical exercise apparatus according to claim 1 said weight means comprising a cage having means for supporting a selected number of weights therein.

11. Physical exercise apparatus according to claim 10 said weight supporting means comprising a generally upstanding post receptive of apertured bar-bell weights.

12. Physical exercise apparatus according to claim 10, said cage having an upper tab and a lower tab projecting beyond its center to which said support and tug lines are respectively connected, whereby the center of gravity of said weight means will always be below said lines.

13. Physical exercise apparatus according to claim 12, said tabs being directed upwardly with respect to the bottom of said cage.