Title:
Exercising device
United States Patent 2068578


Abstract:
This invention relates to an exercising device. It is an object of this invention to provide an improved exercising device which is relatively simple and inexpensive in construction and efficient in use. Another object of the present invention is to provide a new and improved exercising device...



Inventors:
Joseph, Stronach Edwin
Application Number:
US2152335A
Publication Date:
01/19/1937
Filing Date:
05/15/1935
Assignee:
Joseph, Stronach Edwin
Primary Class:
International Classes:
A63B21/008
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Description:

This invention relates to an exercising device.

It is an object of this invention to provide an improved exercising device which is relatively simple and inexpensive in construction and efficient in use.

Another object of the present invention is to provide a new and improved exercising device embodying novel means for varying or regulating the resistance offered to movement of the same by the operator.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing, showing the preferred form of construction and in which: Fig. 1 is a side elevational view, partly in section, showing a preferred form of the new exercising device; Fig. 2 is a fragmentary vertical sectional view of the same, on line 2-2 in Fig. 1; and Fig. 3 is a transverse or horizontal sectional view on line 3-3 in Fig. 2.

A preferred form of the new exercising device is illustrated in the drawing, is therein generally indicated at 10, and comprises a supporting base I upon which is mounted a cylinder 12 which is adapted to contain a quantity of any suitable substantially incompressible liquid such, for example, as oil, water.

Slidably mounted in the cylinder 12 is a piston 13 in which are provided openings 14.

The piston 13 is carried by a piston rod 15 and this piston rod 15 has an end portion 16 which projects exteriorly of the cylinder 12 above the upper end of the latter; and attached to the upper end portion 16 of the piston rod 15 is a tubular member T1 in which is slidably mounted a second tubular member 18. These tubular members IT and 18 are telescopically adjustable relative to each other and are latchable in a preselected position by means of an adjustable element in the form of a thumb screw 19 which engages in a groove 27 which is formed in the tubular member 18.

Slidably mounted in the tubular member 18 is a portion 20 which has a hand grip portion 21 and this handle member 20-21 and the tubular member 18 are telescopically adjustable relative to each other by means of a thumb screw 22, which is adapted to engage a groove 28 which is formed in the portion 20 of the handle member 20-21.

Mounted on the cylinder 12 is a by-pass tube Operation In the use of the new exercising device a suitable incompressible fluid such, for example, as oil, water or the like, may be arranged in the cylin- 10 der 12 and the extensions 17, 18, and 20 of the piston rod 15 may be adjusted to any desired predetermined height, suitable to the height of the operator, whereupon the extensible parts 17-18- and 20 may be latched in a preselected 15 position by means of the thumb screws 19 and 22.

The vertical shaft 17-18-20 and the piston rod 15 and its attached piston 14 may then be operated up and down in the cylinder 12 by al- 20 ternately raising and lowering the handle grip 21; and during the down stroke of the piston 13 the liquid in the cylinder 12 will travel through the openings 14.

The resistance offered to the movement of the 25 piston 13 in the cylinder 12 may be regulated to suit the operator of the device by adjusting the valve 26 in the by-pass 25 which is normally closed by the valve 26, the ports 14 in the piston 13 normally allowing the liquid in the cylinder 30 12 to pass therethrough with sufficient speed to permit operation of the device by the average person without difficulty. However, if it is desired, for example, to decrease the resistance offered to the movement of the piston 13 in the 35 cylinder 12, the valve 26 may be partially or entirely opened, thereby allowing the liquid in the cylinder 12 to flow through the by-pass 25 into the upper area of the cylinder 12, on the down stroke of the piston, and to flow in the opposite 40 direction, that is, into the lower area of the cylinder 12, on the upward stroke of the piston.

The present exercising device is particularly useful in exercising the abdominal and back muscles and the ready adjustment of the effec- 45 tive length of the vertical shaft or piston rod 15-17-18-20, together with the by-pass 25 and valve 26, permit adjustment of the device to the various needs of different persons.

While I have illustrated and described the pre- 50 ferred form of construction for carrying my invention into effect, this is capable of variation and modification, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construc- 55 tion set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having thus described my invention what I claim as new and desire to protect by Letters Patent is: In an exercising device, the combination of: a supporting base; a cylinder mounted upon said supporting base and adapted to contain a quantity of fluid or liquid; a piston slidable in the said cylinder and having openings extending axially therethrough for the passage of the said fluid or liquid; a piston rod attached-to the said piston; a vertically extending shaft attached to the said piston rod; a handle attached to the said shaft; a by-pass arranged exteriorly of the said cylinder; said by-pass opening at its upper end into the area of said cylinder disposed above the said piston and opening at its lower end into the area of the said cylinder disposed below the said piston; and a valve in the said by-pass for regulating the flow of the said fluid or liquid therethrough from the lower area of said piston to the upper area of the same and from one side of the said piston to the other or vice versa; said valve being adjustable so as to vary the rate of flow of the said fluid or liquid therethrough and thereby regulate the resistance offered to the operator of the said device in forcing the said piston either upwardly or downwardly in the said cylinder against the said fluid or liquid. EDWIN JOSEPH STRONACH.