Hip mounted exercising device

An exercising device can be used for fun and for aerobic exercise. A rebound board is placed against the pelvic area of a person, and a ball is tethered to the board by a stretchable tether. The person can somewhat bounce, bending and straightening the knees, with consequent movement of the hips causing the ball to bounce rhythmically on the rebound board. More or less energetic movement of the hips renders the exercise more or less strenuous, and weights can be held in the hands to increase the stress.

INFORMATION DISCLOSURE STATEMENT 
It has become common to provide an exercising device that is somewhat 
enjoyable to use while yielding beneficial results in body conditioning, 
muscle tone and the like. While participation in many sports might provide 
needed exercise, there is a constant search for some method and apparatus 
that will allow an individual to exercise alone, and to select the pace 
and strenousness of the exercise. Though many routines, or exercises, have 
been devised to work certain muscles and joints, these routines are 
generally rather boring to the individual, and lack the skill and feelings 
of personal achievement that will maintain a person's interest. 
SUMMARY OF THE INVENTION 
This invention relates generally to a method and apparatus for exercising, 
and is more particularly concerned with an exercising device in the form 
of a game of skill for achieving both exercise and feelings of personal 
achievement. 
The present invention provides a hip-mounted rebound board carrying an 
elastic ball on a stretchable tether. Appropriate motion of the rebound 
board will cause the elastic ball to bounce on the board, extend 
therefrom, and be returned to the board by the stretchable tether. Both 
skill and uniform rhythm are therefore required to maintain the repetitive 
bouncing of the ball on the rebound board. 
The ball can be varied in its degree of elasticity, and its size and 
weight. The tether can also be varied in its strength to be matched to the 
weight of the ball and the periodicity of the rebounding. In using the 
apparatus of the present invention, a person can put a small amount of 
energy into the rebound board to achieve a gentle, rhythmic exercise. If 
desired, a large amount of energy can be put into the rebound board to 
achieve a more vigorous exercise; and, additional weight can be held in 
the hands for greater muscular stress in other parts of the body.

DETAILED DESCRIPTION OF THE EMBODIMENT 
Referring now more particularly to the drawings, and to that embodiment of 
the invention here presented by way of illustration, the exercise device 
shown in FIG. 1 of the drawings includes a rebound board generally 
designated at 10 having a tether 11 fixed thereto, the tether 11 carrying 
an elastic ball 12. To mount the rebound board 10 on a person, there is a 
strap generally designated at 14, the strap being attachable to the 
rebound board 10 through elongated belt slots 15 and 16. 
Looking at FIGS. 1 and 2 for a more detailed understanding of the device, 
it will be noted that the rebound board 10 is generally straight so that 
the outer surface 18 provides a flat, rebound surface for the ball 12. 
While the shape of the rebound board 10 may be varied somewhat, the board 
10 is here shown as having a generally straight, upper edge 19, and a 
substantially semi-elliptical configuration. The semi-eliptical 
configuration for the rebound board 10 is desirable in order to provide a 
relatively large expanse in the center for rebounding of the ball 12. Yet, 
at the lateral edges 20 and 21, the rebound board 10 curves inwardly to 
allow some freedom of movement of the person's legs. 
Since the ball 12 is intended to bounce from the rebound surface 18 of the 
rebound board 10, it will be understood that deviations from the flat 
surface will cause erratic bouncing of the ball 12. Thus, the means for 
attaching the tether 11 to the rebound board 10 is preferably such as not 
to cause such erratic bouncing. As here shown, the rebound board 10 is 
provided with a plurality of openings 22 therethrough so the tether 11 can 
be tied through one or more of the openings. 
The rebound board 10 may conveniently be made of wood or the like. For a 
board 10 made of wood, the holes 22 may be provided by drilling, and this 
arrangement is shown in more detail in FIG. 3 of the drawings. In FIG. 3 
there are two holes designated at 22a and 22b, the holes 22a and 22b 
corresponding to one of the pairs of holes illustrated in FIG. 1 of the 
drawings. Of course a simple pair of drilled holes will suffice for 
securing the tether 11, but the holes 22a and 22b are shown somewhat 
tapered at each side of the rebound board 10. Those skilled in the art 
will understand that a hole can be drilled, then a tapered bit can be 
inserted into the hole to provide the tapered extremity. The tapered bit 
can similarly be applied to the back of the rebound board 10 so the holes 
22a and 22b are flared at both back and front. This provides greater ease 
in threading the strand of the tether 11 through the rebound board 10. 
Once the tether 11 is threaded through the holes 22a and 22b, the strand 
is knotted as at 24, or otherwise secured to itself. 
The rebound board 10 may also be made of plastic or other moldable 
materials. For a moldable board, the holes 22 may be molded in the rebound 
board at the time the board itself is molded. Such an arrangement is 
illustrated in FIG. 4 of the drawings where it will be seen that there is 
an opening 22c and an opening 22d. The two openings 22c and 22d are 
substantially connected at the front and rear of the rebound board 10, but 
there is a central portion 25 to hold the tether. Therefore, the tether 11 
can be passed through the hole 22c, then through the hole 22d, and the 
material can be fixed to itself, again by a knot or the like. 
In order to hold the rebound board in position on a person's hips, the 
strap 14 is removable and adjustable. The strap 14 includes a free end 28, 
the free end 28 carrying strips of hook and teasel material designated at 
29 and 30 respectively. Thus, the end 28 can be passed through the slot 16 
in the rebound board 10, and the hook material 29 can be placed against 
the teasel material 30 for providing a loop as is illustrated in FIG. 2 of 
the drawings. 
The opposite end of the belt 14 carries a buckle 31. From the axle of the 
buckle 31, the strap 14 is passed through the slot 15, then back through 
the buckle 31, and to the free end 28. Looking again at FIG. 2 of the 
drawings, it will be seen that the buckle 31 can be moved along the strap 
14 to increase or decrease the size of the loop 32 which passes through 
the slot 15. Such motion will lengthen or shorten the strap as a whole to 
adjust the strap to the individual. 
With the above description in mind, the method for using the exercising 
device should be understandable. The following description will consider a 
relatively mild form of exercise and a more strenuous form of exercise 
using the device, but those skilled in the art will easily devise 
additional methods utilizing the device of the present invention, and the 
precise methods are not intended to limit the scope of the present 
invention. 
Looking at FIG. 5 of the drawings, it will be seen that the exercise device 
is mounted at the front of the person, the rebound board 10 being 
generally in front of the pelvic area. The strap 14 extends around the 
hips of the person to hold the rebound board 10 in position. Since the 
slots 15 and 16 are elongated beyond the width of the belt 14, it will be 
noted that the rebound board 10 can be moved up or down to some extent 
without moving the belt 14 with respect to the person. This adjustment 
renders proper positioning of the rebound board 10 quite simple to prevent 
repeated adjustments of the strap 14. It should also be understood that 
the strap 14 is preferably elastic material which will adequately retain 
the set position of the rebound board 10. 
With the exercising device in place as shown in FIG. 5, the person may hold 
the ball 12 by hand to position the ball for starting. The person will 
then bend at the knees, perhaps bending the torso somewhat rearwardly as a 
counter-balance, and causing the hip area to move forward. At this forward 
movement, the ball 12 is somewhat thrown against the rebound board 10 so 
the ball 12 is caused to bounce off the rebound board 10. Since the ball 
12 is held by the stretchable tether 11, the ball will be pulled back 
towards the rebound board 10 for a subsequent bounce. At the time for each 
bounce, the exerciser will bend at the knees and thrust the hips slightly 
forward as described above to provide the necessary energy for the ball 12 
to bounce and stretch the tether 11. 
With the exercise described, it will be understood that there is a very 
gentle bouncing utilizing the knees, and slight motion of the arms and 
torso to counter-balance the action of the hips. This action must be 
maintained in a regular rhythm because of the stretchable tether and the 
elasticity of the ball 12 so that one is forced into a highly rhythmic 
exercise. The exercise can be aerobic because there is distinct body 
motion, and the motion must be rhythmic. Sustained for a sufficient period 
of time, the exercise meets the requirement of aerobic exercise. Further, 
the gentle method described above can be used by beginners so the person 
will not be over-taxed, and the more strenuous methods described below can 
be used as the person becomes better conditioned. 
Looking then at FIG. 6 of the drawings, it will be understood that the 
exercising device is mounted in the same way on the person exercising, and 
the difference is in the energy exerted by the exerciser. As is shown in 
FIG. 6, the exerciser can thrust the hips forwardly more forcefully to 
cause the ball 12 to move farther out, stretching the tether 11 to a 
greater extent. This greater force must be counter-balanced by greater 
force so that the upper torso is moved through a greater distance and 
stressed to a greater extent. Also, as is shown in FIG. 6, the more 
advanced exerciser may wish to utilize dumbells or other weights in the 
hands. Again, the additional weight will create additional stress on the 
body muscles for a move vigorous exercise. 
It will be realized by those skilled in the art that the motion of the ball 
12 is a function of several variables. The ball 12 may be highly elastic 
(very hard) or very inelastic (very soft), and of course the higher the 
elasticity of the ball 12 the farther the ball will tend to rebound from 
the rebound board 10. Also, the strength and resilience of the tether 11 
is an important feature. A very easily stretchable tether 11 will allow a 
ball to rebound farther, and will pull the ball towards the rebound board 
10 with less force. The weight of the ball 12 is also important. The 
strength of the tether 11 and the elasticity of the ball 12 are 
determinative of the forces acting on the ball, while the weight of the 
ball in relation to the forces determines the distance the ball will 
travel. With these many variables, it will be understood that a ball 12 
and a tether 11 can be selected to achieve the desired rhythm and degree 
of exercise in using the device. A very heavy ball 12 with a strong tether 
11 will allow the exerciser to exert a large amount of energy in bouncing 
the ball. The opposite extreme is to utilize a rather weak and easily 
stretchable tether 11 with a relatively light weight ball 12. This will 
give a long period to the motion of the ball 12 and require very little 
energy input. 
It will be understood by those skilled in the art that the exercise device 
of the present invention is readily adaptable to many different individual 
users. The tether 11 can be attached to the rebound board 10 at many 
different positions so the ball 12 will rebound from the rebound board 10 
for any selected ball and tether and any selected degree of exercise. The 
adjustable strap 14 and the vertically adjustable rebound board 10 allow 
complete freedom in placement of the rebound board 10 with respect to the 
exerciser while allowing maximum comfort and freedom of motion to the 
exerciser. 
It will therefore be understood by those skilled in the art that the 
particular embodiment of the invention here presented is by way of 
illustration only, and is meant to be in no way restrictive; therefore, 
numerous changes and modifications may be made, and the full use of 
equivalents resorted to, without departing from the spirit or scope of the 
invention as outlined in the appended claims.