# Patent

## Title
Power swing training bat

## Abstract

The power swing training device of the invention is a tethered, truncated, training device attached by flexible elastic to a fixed anchor point, or to a pulley and weight system. A swivel attachment is attached to the distal end of the training device and a yoke is attached to the swivel attachment, and an elastic cord is attached to the yoke at one end and to a fixed point at the other. In a second embodiment, a cord is hung on a pulley attached to an anchor and a weight is placed at the other end.

## Background
RELATED INVENTIONS
The instant invention is a Continuation of Ser. No. 10/087,284, Filed Mar. 1, 2002 now U.S. Pat. No. 6,572,497 and U.S. Ser. No. 10/187,243 filed Jul. 2, 2002, now U.S. Pat. No. 6,592,474, Issued Jul. 15, 2003.


BACKGROUND OF THE INVENTION
The present invention relates to sports training devices and more particularly to a tethered training bat or other sports equipment attached by flexible elastic to a fixed anchor point, or to a pulley and weight system.
DESCRIPTION OF THE PRIOR ART
Prior art training bat devices are designed to accomplish one of the two basic purposes, to train a batter's muscles to swing the bat correctly, to develop the batter's muscles and improve batting strength and velocity. General batting practice using a pitcher or a pitching machine is sometimes inefficient particularly with newer players who may be unable to hit the ball. In this case, the batter gets little accuracy or muscle strength training. A pitching machine is a good device, however, it doesn't add any resistance to the swing and does not strengthen the muscles to give a more powerful swing.
The following patents are examples of prior art devices: U.S. Pat. No. 6,030,299 to Denny discloses a suspended ball held by a flexible, resilient plate giving resistance to the batter's swing, does offer a training and strengthening device but is mechanically complex and costly to build; U.S. Pat. No. 6,050,908 to Muhlsen discloses a training bat having a handle member with a shock absorbing coupler and at least one detachable elongated contact surface member coupled in the shock absorbing coupler wherein at least one detachable elongated contact surface member has a width significantly less than the width of a regular bat to enhance the eye-to-hand coordination to contact a pitched ball; U.S. Pat. No. 5,595,384 to Hardison, Jr. discloses a bat swing guide including a vertical support member and an arcuate guide attached at one end to the vertical support member. The arcuate guide is generally semi-circular and may be positioned to accommodate either a righthanded or lefthanded hitter. A pivoting tee is attached to the vertical support member for supporting a ball. An adjustable bat stop is attached to the distal end of the arcuate guide; U.S. Pat. No. 5,014,984 to Brockhoff discloses a practice baseball bat having an elongated shaft of predetermined length. One end of the shaft has a hand-grip portion and an elongated, enlarged cylindrical ball contact portion which extends intermediate the ends of the shaft and adjacent the other end of the shaft.
None of the prior art devices provide a training and strengthening device which can be adjusted as to the direction or angle of the swing or by adding additional weights to gradually increase the strength of the body.
SUMMARY OF THE INVENTION
The present invention provides a truncated training bat or other sports device such as a tennis racquet, golf club or hockey stick, for example, having a yoke attached to its distal end. A resistance tube (or multiples thereof) is attached by an attachment clip to a yoke at one end and to a fixed base at the other. In a further embodiment, the bat is attached by a cord to a pulley and weight resistance system.
It is therefore an object of the invention to provide a new, improved, and inexpensive sports training device that strengthens the sportsman by using flexible, no impact, resistance.
A further object of the invention is to provide a training device which can be used anywhere there is a suitable attachment or suspension point.
A still further object of the invention is to provide a training device which can be adjusted to give greater or lesser resistance and by so doing, becomes useful to a wide age range of players.
Another object of the invention is to provide a handle dimensioned exactly as a normal sports device to familiarize the user with the feel of a regular device.
These and other objects and advantages of the present invention will be fully apparent from the following description when taken in connection with the annexed drawings.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an isometric view of a first embodiment of the invention.
FIG. 2 is an isometric view of a second embodiment of the invention.
FIG. 3 is an elevational view showing a batter using the training device described herein.
FIG. 4 is a plan view of a yoke assembly in accordance with the invention.
FIG. 5 is an elevational view showing a tennis player using the training device of the invention.
FIG. 6 is an isometric view of a first embodiment of a tennis racquet handle in accordance with the invention.
FIG. 7 is an isometric view of a second embodiment of a tennis racquet handle in accordance with the invention.
FIG. 8 is an elevational view of showing a hockey player using the training device of the invention.
FIG. 9 is an isometric view of a first embodiment of a hockey stick handle in accordance with the invention.
FIG. 10 is an isometric view of a second embodiment of a hockey stick handle in accordance with the invention.
FIG. 11 is an elevational view showing a golf player using the training device of the invention.
FIG. 12 is an isometric view of a first embodiment of a golf club handle in accordance with the invention.
FIG. 13 is an isometric view of a second embodiment of a golf club handle in accordance with the invention.
FIG. 14 is an isometric view of a third embodiment of a truncated training bat in accordance with the invention.
FIG. 15 is a top view of a third embodiment of a truncated training bat in accordance with the invention.
FIG. 16 is an exploded view of a third embodiment of the invention.



DESCRIPTION OF A PREFERRED EMBODIMENT
The training device of the invention is light in weight, is small enough to fit in any sports bag and can be attached and used almost anywhere a person feels like practicing their swing, at a home or on the field. It would be a great asset for any coach, and could be used by everyone from the boys and girls in T-Ball to the players in the pros.
Referring now to the drawings, wherein like numerals refer to like and corresponding parts throughout the several views, in FIGS. 1, 2, 3 and 4, the invention is designated overall by the numeral 10. Bat 12 has a proximal end 24 and a distal end 26. Swivel attachment points 14 and 16 connect yoke 18 to bat 12. The swivel attachment points 14 and 16 are each formed of washers 30 and spacers 31 mounted on shaft 35 to hold the yoke ends 32 in a rotatable position on shaft 33. The assembly of spacers and washers is fixed with a cotter pin 36. In a first embodiment, the Yoke ends 38 were formed in a loop and fastened with fasteners 34.
Hooks 20 and 20′, attached at each end of cord 22, connect to fixed anchor 32, providing inertial force against the rotation of bat 12 in the direction of arrow 30.
Referring to FIG. 2, in an alternative embodiment, base weights 42 and supplemental weight 44 apply tension to cord 41 and inertial force against the rotation of bat 12 in the direction of arrow 30.
The muscle conditioning effect of the invention in either of its embodiments is seen in FIGS. 3, 5, 8 and 11. Assuming a normal batting stance, batter 60, gripping the proximal end 24 of the training bat 12, must apply force against the inertial tension in cord 22. Repetitive motions by batter 60 produce both aerobic and/or isometric exercise for muscle groups 50 in the shoulders, in the upper arms 51, in the forearms 52, in the stomach 53, in the thigh leg muscles 54, and in the lower back/gluteus area 55. FIGS. 5, 8 and 11 show the same results for tennis, hockey and golf. FIGS. 6 and 7 show the cord 22 attached to a truncated tennis racket 112. FIGS. 8, 9, and 10 show the cord 22 attached to a truncated hockey stick 212. FIGS. 11–13 show the cord 22 attached to a golf club 312.
The attachment location of cord 22 on anchor pole 32 can be adjusted for each individual batter, tennis player, hockey player or golfer. By attaching the cord 22 at different heights on a fence, a batter or sportsman may practice the “swing plane” that he/she prefers. A higher attachment gives a more downward swing plain. When using the power swing invention 10, the batter should swing 10 or more repetitions thereby quickly developing the “quick twitch muscle memory”.
The pole 32 is shown as an example of an anchor, however, the most convenient and efficient anchoring point is the batting cage, pole, or fence, where the cord 22 may be attached in an infinite number of locations to perfect a downswing, an upswing, or a horizontal swing as shown in FIG. 3. The pole 32 is more appropriate for the other applications as shown in FIGS. 5, 8, 11, and 14. In FIG. 5 a tennis player is shown using both hands in hitting the tennis ball. In FIG. 8 a hockey player is shown with a typical hockey grip holding the hockey stick assembly 210. In FIG. 11 a golf player is shown using both hands with the golf system 310 to build up the appropriate muscles for golf.
In FIGS. 14–16, a third embodiment of the invention is designated overall by the numeral 410. The truncated training bat 412 is shown having a reinforced end 413 and a mounting hole 424. A yoke 418 is attached to the bat 424 with a yoke pin 419 which is inserted into hole 424. The yoke 418 is assembled on reinforced end 413 with spacers 421 located on pin 419 between end 413 and the ends of the yoke 418. A third spacer 421 is located between the end of the yoke 418 and the attachment clip 423. The clip 423 may be a “C” clip which can be easily mounted on, or removed, from pin 419.
The resistance tube 422 contains an attachment clip 420 mounted on each end for fastening to the yoke 418 at a first end and a second end to a fixed anchor 32 as shown in FIG. 1. The resistance tube 422 may be a section of hollow rubber tubing such as surgical tubing or elastic cord.
The yoke 418, the reinforced end 413, and the assembly of the spacers 421 and clip 423 may also be attached to the previously described embodiments of the truncated bat 12, the truncated tennis racket 112, the hockey stick 212, and the golf club 312.
Each of the embodiments include the same components described in relation to the baseball bat 12, that is, the swivel attachment points 14 and 16 and the yokes 18. The cords 22 would be sized appropriate for the required swing for the particular sport. In one embodiment, three different sized cords are used, separately, or combined to provide additional resistance.

## Claims

1. A sports training device comprising:
a truncated sports device, said sports device having a distal end and a proximal end, said distal end having a reinforced portion and having a mounting hole formed therethrough,
attachment means being mounted on said distal end of said truncated sports device, said attachment means having a first end and a second end, a yoke pin having a first end and a second end, said yoke pin being mounted through said mounting hole, and having a yoke and an assembly of spacers mounted on said yoke pin, said yoke being rotatably mounted on said yoke pin and attached to said distal end of said sports training device and being held in place by a clip, and
a hollow rubber tubing having a first end and a second end, said rubber tubing being mounted to said yoke at said first end and being attached to an anchor point at said second end,
said hollow rubber tubing providing resistance to a force applied by the sports player to said sports device, thereby strengthening the muscles used directly in hitting a sports item.

2. A sports training device of claim 1 wherein said sports device consists of a truncated baseball bat.

3. A sports training device of claim 1 wherein said sports device consists of a truncated tennis racquet.

4. A sports training device of claim 1 wherein said sports device consists of a hockey stick handle.

5. A sports training device of claim 1 wherein said sports device consists of a truncated golf club handle.

6. A sports training device of claim 1 further comprising a cord, said cord having a proximal end, and a distal end, a pulley, and a weight, said weight being attached to said distal end of said cord and said proximal end of said cord being attached to said yoke of said sports device, said cord being movably inserted over said pulley, said weight providing inertial force against the movement of said sports device.