US1686890A - Exerciser - Google Patents

Description

R. w. WOOD EXERCI SER Filed Feb. 11, 1926 IN VE N T R WI+NESSES v I ATTORNEY Patented Oct. 9, 1928.

UNITED. STATES PATENT OFFICE.

ROBERT w. WOOD, or ArrLnroN, WISCONSIN.

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. Application filed February 11, 1926. SerialNo. 87,573.

by a pull onthe cords, is rotated in the opposite direction to acquire a momentum, C21-L1S' ing the cords to be againtwisted and eifectivelyshortened with a consequent repetition of the operation any number of'times.

By utilizing this principle in an exercising apparatus, the effect of pulley weights may be obtained accompanied by a torsional stress first inone direction and then in the otherand, by reason of the spinning weights,

affording interest in an otherwise uninteresting performance.

Another ob ect of the invention is toproe vide an exerciser of'this type of novel con struction minimizing thewear on the cords and affording an easy grip for the hand convertible to a wall attachment.

With the above and other objects in view the invention consists in the exerciser as here in claimed and all equivalents.

Referring to the accompanying drawings, in which like characters of reference indicate the samelparts in. different views,

Fig.1 is a view ofan exerciser constructed in accordance with this invention;

Fig. 2 is a view of a pairof such exercisers attached to the wall, and n Fig. 3 is a sectional view of theweight or ball. I

In these drawings, 10 indicates the ball or weight, which is preferably of hard wood or other suitable material and is shaped somewhat resembling a wheel with a heavy periphery reduced at the center, where projections or knobs 11 are'formed on the opposite sides. Transverse openings 12 are formed through these knobs or projections, through which the cords 13 are passed, said openings being rounded to avoid wear on the cords. The ends of the cords 13 are preferably provided with swivel-hooks. or eyes 14 engaging.

spaced notches of hand grips 15. The hand grips may consist of a U-shaped wire meme ber affording these notches for engagement with the ends of the cords and termlnatin in eyes in which the handle16 is engaged so t at when the exerciser is be attached to the wall the wire member may be, sprung off of the, handle and engaged with suitable spaced hooks 17 on the wall orother stationary support. a I

In using a single exerciser both hand grips may be engaged in the hands and, after the ball hasbeenturned to give an initial twist to the cords, by pulling the grips apart the ball is caused to rotate until the cords are untwisted, whereupon the pull on the grips is released permitting the momentum'of the ball to rewind the cords and,'in

sodoing, draw the grips closer together. The

action is then repeated, the ball turning in the opposite direction, and. the operation is continued at will, the hands being first moved apart under the yielding resistance of the unwinding cords and then being drawn'together while offering a slight resistance I thereto.

The connection of v by passing them through the rounded openthe cords with the ball ings of the opposite'knobs 11 is such as to avoid wear on the cords'and their swivel connectionspermit them to'turn while being twisted, thus prolonging their life.

By usingv two of the exercisers and at.-

taching each to the wall or other stationary support, as shown, they may heoperatedv independently to provide exercise similarto that afforded by pulleysgand' weights, but

with this difference,-ithat the resistance to inward motion and the impelling force for. outward motion is constantly varying The resistance to the-inwardstro ke tapers off as the ball acquires speed and the impelling in motion, it engages the interest of the user.

What I claim asnew and desire to secure by Letters Patentds:

A physical exerciser comprising a ball having its greatest -mass peripherally 'disposed and provided with knobs on its oppo .site sides, cords passing through openings in the knobs, swivel connections on the ends of the cords, and connecting members having spaced notches engaged by the swivel connections In testimony whereof, I aflix my signature.

ROBERT WM. WOOD.

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