Foot operated rotational assembly

A foot operated rotational assembly is provided which a user operates while in a standing position. The apparatus includes a rotational assembly mounted on a frame structure. The rotational assembly includes a plurality of rotatable members connected together by an intermediate rotatable member. Cranks are attached to and extend from each side of the rotatable members. A pedal is located on each side which bridges the cranks on that side. The cranks are arranged so that the pedals are opposingly positioned and travel their path of rotation while remaining in a horizontal position.

BACKGROUND OF THE INVENTION 
This invention relates to a lower body exercise device and in particular to 
a stationary device which has an upright structure which allows the user 
to perform pedaling routines while in a standing position. This feature 
allows for a more overall lower body workout than provided by more 
conventional stationary lower body exercise devices such as cycles, 
treadmills, stair-stepper devices, and skiing or glider devices. 
As may be seen, there already exists many variations of stationary upright 
lower body exercise devices. While these units offer a relatively good 
exercise, they all appear to be one dimensional. Most current cycling 
devices utilize a seat means, and those that do allow for pedaling in a 
standing position are not very easy to operates due to difficulties with 
the user keeping good balance. Current stair-stepper exercise devices and 
glider or skiing devices allow for very little rotary motion in the hips 
and stomach area. The stair-steppers allow for upward and downward motion 
in the user while glider or skiing devices allow for backward and forward 
motion in the user. Treadmills do provide for rotary motion in the hips 
and stomach, but forces act against the user only as the user steps on the 
treadmill base. This new exercise device provides a force against the user 
during upward, downward, backward, and forward leg motion, and therefore 
much more rotary motion in the hip and stomach area. Given the fact that 
there are a vast number of exercise devices, in particular pedaling type 
devices, it has come as a surprise that no one has effectively designed a 
device which may be easily operated from a standing position. The standing 
position provides a greater overall lower body workout than other pedaling 
type devices. 
SUMMARY AND OBJECTS OF THE INVENTION 
It is the object of this invention to provide a foot operated rotational 
assembly which supports the user while in an upright standing position and 
allows the user to perform cycling routines while in this position. The 
main purpose of this application is to demonstrate the different types of 
foot operated rotational assemblies which may be used for this purpose. 
Briefly state, the apparatus that forms the basis of the present invention 
comprises basically foot engaging means and a rotational assembly means, 
although in one version of the assembly the rotational assembly means is 
not required. These will mount in some manner upon an overall frame 
structure. 
The design of the foot operated rotational assembly is such that the foot 
support members of the foot engaging means, upon which the user places 
their feet, always remain in a substantially horizontal position as they 
move along their path of rotation. This feature is not found in other 
pedaling devices. The ability of the foot support member to maintain this 
substantially horizontal position may be due to a rotational assembly 
means, which may also be part of the foot operated rotational assembly. 
Additional types of assemblies such as a resistance means, a motor means, 
and an upper body workout means may connect with the foot operated 
rotational assembly to create different types of exercise devices. These 
may be individually connected to used in combination with one another. 
Other objects, features, and advantages for this invention will be apparent 
from the following detailed description and the appended claims, 
references being made to the accompanying drawings forming a part of the 
specification, wherein like reference numerals designate corresponding 
parts of the several views.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
Before explaining in detail the present invention, it is to be understood 
that the invention is not limited in its application to the details of 
construction and arrangement of parts illustrated in the accompanying 
drawings, since the invention is capable of other embodiments and of being 
practiced or carried out in various ways. Also it is to be understood that 
the phraseology and terminology employed herein is for the purpose of 
description, and not limitation. 
As best can be seen by references to the drawings, and in particular to 
FIGS. 1A thru 3C, the foot operated rotational assembly that forms the 
basis of the present invention is designated generally by the reference 
numeral 14, and includes a foot engaging means 15 and a may contain a 
rotational assembly means 23. This foot operated rotational assembly 14 
mounts upon a frame structure 11 which may have upwardly extending 
assembly supports 12. These assembly supports 12 may contain structure 
openings 13, through which the foot operated rotational assembly 14 
mounts. 
As may also be seen, the foot engaging means 15 comprise foot support 
members 16, connected members 18, and shaft members 22. Shaft members 22 
may mount through structure openings 13 of assembly supports 12, with a 
portion of shaft member 22 extending outside of assembly supports 12. 
Connection member 18 is a generally L-shaped rod element having a first 
leg 19 and a second leg 21. The angle between the two legs is preferred to 
be 90 degrees, but does not necessarily have to be. At the end of first 
leg 19 is shaft opening 20, which receives shaft member 22, and may be 
fixedly coupled together through a bolt, weld, or the like. Therefore 
shaft member 22 and connection member 18 rotate simultaneously. Foot 
support member 16 is a relatively flat structure upon which the user 
places their foot. It contains tubular opening 17 through the side which 
loosely receives the second leg 21 of connection member 18. Second leg 21 
has a threaded end so a bolt nut member may be attached to keep foot 
support member 16 in position. 
Also part of the foot operated rotational assembly may be a rotational 
assembly means 23. It enables the foot support members 25 of foot engaging 
means 15 to maintain a substantially horizontal position as they move 
around their path of rotation. In order to achieve this, shaft members 22 
of foot engaging means 15 must rotate in the same direction and at the 
same angular velocity and acceleration. 
Shown in FIGS. 1A, 1B, and 1C is one type of rotational assembly means 23. 
In this version, there are rotatable members 234 which fixedly mount on 
shaft members 22. An intermediate rotatable member 25 can mount fixedly or 
loosely upon an intermediate shaft member 27, which mounts to an 
additional assembly support 12. This intermediate rotatable members 25 is 
in direct rotating contact with rotatable members 24. This intermediate 
rotatable member 25 keeps rotatable members 24 rotating in the same 
direction and at the same angular velocity and acceleration, as long as 
the rotatable members 24 are the same size. This is a typical gear type 
assembly means, such as rotating gears with interfacing teeth or roller 
members with enough friction between surfaces so that no slippage occurs. 
Shown in FIGS. 2A, 2B, and 2C is a second version of the rotational 
assembly means 23. In this version, there are again rotatable members 24 
which are fixedly mounted on shaft members 22. There are also two 
intermediate rotatable members 25 mounted fixedly or loosely upon 
intermediate shaft member 27, which also mounts on an assembly support 12. 
These intermediate rotatable members 25 are not in direct contact with 
rotatable members 21, but use closed loop interconnection members 26 to 
keep rotatable members 24 rotating in the same direction and at the same 
angular velocity and acceleration, as long as rotatable members 24 are the 
same size. The rotatable members, intermediate rotatable members, and 
interconnection members may be a typical chain and sprocket assembly. 
FIGS. 3A, 3B, and 3C demonstrates a type of foot operated rotational 
assembly 14 which does not require a rotational assembly means 23. In this 
version, an additional shaft member 22 and connection members 27 are 
added. These additional components keep foot support member 16 at a 
substantially horizontal position, and shaft members 22 rotating in the 
same direction and at the same angular velocity and acceleration. 
As seen in all the figures, at least two shaft members 22 are rotatably 
coupled to assembly supports 12 of frame structure 11 through structure 
openings 13. Fixedly attached to the end of each shaft member 22 are 
connection members 18, at least two per side. The connection members 18 on 
one side of the device are mounted at the same angle, while those on the 
opposite side are mounted at opposite angles to the previous ones. Each 
foot support member 16 loosely receives the second legs 21 of at least two 
connection members 18. 
Since the connection members 18 are identical in lengths and shaft members 
22 are mounted on assembly supports 12 at the same level, the foot support 
member 25 will be in a substantially horizontal position and remains so as 
long as shaft members 22 rotate in the same direction and at the same 
angular velocity and acceleration. This may be ensured by a rotational 
assembly means 23, or an additional shaft member 22 and connection member 
18. In other words, the foot engagement members and the connection members 
are attached together along horizontal axes restricting relative movement 
to rotation about the axes. 
Many variations of the foot operated rotational assembly exist and the 
configurations described above. For example, in all the above cases, the 
second leg is fixedly connected to the first leg, with the second leg 
being loosely connected to the foot support member. It is possible to 
loosely connect the first and second legs together and have the second leg 
rigidly connect to the foot support member. Also, in the version of the 
foot operated rotational assembly shown in FIGS. 3A, 3B, and 3C, it would 
be possible to have the shaft members rigidly mounted to the base, and the 
first leg of the connection member rotatable coupled to this shaft member. 
These variations would also allow the device to function as desired. While 
it will be apparent that the preferred embodiment of the invention herein 
disclosed is well-calculated to fulfill the objects above stated, it will 
be appreciated that the invention is susceptible to modification, 
variation, and change without departing from the proper scope or fair 
meaning of the subjoined claims.