U.S. patent application number 13/654195 was filed with the patent office on 2013-05-09 for baseball swing line trainer.
The applicant listed for this patent is Dwane Traynor. Invention is credited to Dwane Traynor.
Application Number | 20130116068 13/654195 |
Document ID | / |
Family ID | 48224055 |
Filed Date | 2013-05-09 |
United States Patent
Application |
20130116068 |
Kind Code |
A1 |
Traynor; Dwane |
May 9, 2013 |
BASEBALL SWING LINE TRAINER
Abstract
A baseball swing line trainer for learning proper baseball bat
swing technique has first and second balls on a line or cord. The
first ball is slidable along the cord and may be the target ball.
The second ball is an alignment or position ball. When the batter
executes a level swing, the target ball slides along the cord. Bat
contact with the cord or the position ball indicates an improper
swing.
Inventors: |
Traynor; Dwane; (San Tan
Valley, AZ) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Traynor; Dwane |
San Tan Valley |
AZ |
US |
|
|
Family ID: |
48224055 |
Appl. No.: |
13/654195 |
Filed: |
October 17, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61557306 |
Nov 8, 2011 |
|
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|
Current U.S.
Class: |
473/428 ;
473/422 |
Current CPC
Class: |
A63B 69/0084 20130101;
A63B 69/0002 20130101; A63B 2069/0008 20130101; A63B 69/0079
20130101 |
Class at
Publication: |
473/428 ;
473/422 |
International
Class: |
A63B 69/00 20060101
A63B069/00 |
Claims
1. A swing trainer comprising: a cord; a first ball slider slidably
supported on the cord, with the first ball slider including a
target ball suspended below the cord; and a second ball slider
supported on the cord, with the second ball slider including a
position ball suspended below the cord.
2. The swing trainer of claim 1 with the cord comprising an elastic
cord.
3. The swing trainer of claim 1 with the second ball slider
slidably supported on the cord.
4. The swing trainer of claim 1 further including a first fitting
on a first end of the cord for attaching the first end of the cord
to a first fixed structure, and a second fitting on a second end of
the cord for attaching the second end of the cord to a second fixed
structure.
5. The swing trainer of claim 4 with at least one of the first and
second fittings including a cord length adjuster.
6. The swing trainer of claim 4 with the at least one of the first
and second fittings comprising a hook or clip.
7. The swing trainer of claim 1 with the center of the target ball
3 to 8 inches below the cord.
8. The swing trainer of claim 7 with the position ball and the
target ball suspended below the cord by substantially the same
distance.
9. The swing trainer of claim 1 with the first and second ball
sliders each including a holder having a ring, with the cord
passing through the ring.
10. The swing trainer of claim 1 with the cord having a length of 8
to 15 feet.
11. A method for batter swing training comprising: suspending a
target ball below a cord having a first end and a second end;
suspending a position ball below the cord, with the position ball
spaced apart from the target ball by a dimension SS, and with the
position ball closer to the first end than to the second end of the
cord; swinging a bat at the target ball; and allowing the target
ball to slide along the cord toward the second end of the cord upon
the bat hitting the ball with a substantially level swing.
12. The method of claim 11 further including aligning the user's
body with the position ball.
13. The method of claim 11 further including stretching the cord
and attaching the ends of the cord to fixed objects.
14. The method of claim 11 with dimension SS ranging from 18 to 36
inches.
Description
[0001] This Application claims priority to U.S. Provisional Patent
Application No. 61/557,306 filed Nov. 8, 2011, incorporated herein
by reference.
BACKGROUND OF THE INVENTION
[0002] Achieving a proper swing with a baseball bat can be
challenging. Various swing training devices have been proposed and
used, with varying degrees of success. Some swing training devices
are mechanically complex, are too large or heavy to be easily
transported, require a helper or assistant, provide limited
feedback, or have other disadvantages. Accordingly, there is a need
for a better baseball swing trainer.
SUMMARY OF THE INVENTION
[0003] A swing line trainer for learning proper swing technique has
first and second balls on a line or cord. The first ball is
slidable along the cord and may be the target ball. The second ball
is an alignment or position ball. When the target ball is struck
with a level swing, the target ball slides along the cord. Bat
contact with the cord or the position ball indicates an improper
swing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] In the drawings, the same element number indicates the same
element in each of the views.
[0005] FIG. 1 is a perspective view of a new swing line trainer in
use.
[0006] FIG. 2 is an enlarged perspective view of the swing line
trainer shown in FIG. 1.
[0007] FIG. 3 is a side view of the swing line trainer as shown in
FIG. 2.
DETAILED DESCRIPTION
[0008] Turning now to the drawings, as shown in FIGS. 1-3, a swing
line trainer 10 includes first and second ball sliders 22 and 24 on
a cord 12. Each ball slider may include a ball 26 or 30 attached to
a holder 32. The holder 32 may include or be attached to a ring 34,
with the cord 12 passing through the ring 34. The holder 32 may be
dimensioned to hold the ball 26 or 30 so that dimension DD in FIG.
3 from the center of the ball to the bottom surface of the cord 12
is from about 3 to 5 or 6 inches. The ball 26 or 30 may have a
diameter similar to a standard baseball or softball, typically in
the range of 3 to 4 or 3 to 5 inches. The ball 26 or 30 may be
solid as with a baseball or softball, or the ball may be hollow as
with a plastic whiffle ball having a pattern of through holes. As
described below, the ball 30 on the first ball slider 22 is the
target ball, while the ball 26 on the second ball slider 24 is a
position ball.
[0009] The holder 32 may be provided in various ways. In the
example shown in FIGS. 1-3, the holder 32 is made from cord looped
through the ring 34 and crimped or knotted. The looped cord may
optionally have a cover, such as a shrink sleeve. The lower end of
the holder 32 may extend into the ball 30 and be knotted or crimped
to retain the ball on the holder. The inside diameter of the ring
34 is substantially larger, e.g. 1.5 to 2 or 3 times larger than
the diameter of the cord, to allow the ball slider 22 to slide
freely along the cord 12. In the example shown, the cord is a 5/16
inch bungee cord and the rings are 3/4 inch OD steel snap rings or
key rings.
[0010] Hooks or other end fittings 14 and 16 may be attached to the
ends of the cord 12. The end of the cord may loop through fitting
14 and/or 16, to allow the length of the cord 12 between the
fittings to be adjusted. Alternatively, a separate length adjusting
device 28 may be provided on or with the cord 12, as shown in FIG.
3. The cord 12 may be elastic with a braided cover. Stops 18 and 20
may be attached to the cord 12 toward each end of the cord. The
stops 18 and/or 20 may be disks or washers and may be fixed in
place on the cord, or repositionable on the cord. The total length
of the cord 12 may vary depending on where the swing line trainer
will be used, with a typical length ranging from about 8 to 12
feet. For example, a 10 foot elastic cord may be used across a 16
foot garage door opening.
[0011] As shown in FIG. 1, in use, the cord 12 may be stretched and
the fittings 16 and 18 are attached to fixed structures 52 and 50,
which may be fence or goal posts, backstop posts or bars, garage
door side rails, parked vehicles, etc. The cord 12 is then
substantially horizontal. The first and second ball sliders 22 and
24 are spaced apart. The batter 36 stands with his or her back hip
or back shoulder directly in front of the position ball 26 and
swings the bat 38 at the target ball 30
[0012] The objective is to hit the target ball 30 with a level
swing and with proper form, while avoiding hitting the second ball
slider 24 and the cord itself. The position ball 26 provides an
obstacle to improper bat approach to the target ball 30. If the
batter 36 swings the bat 38 using proper form, the bat 38 moves in
the path or trajectory 40 shown in dotted lines in FIG. 1. The bat
38 hits the target ball 30, with the bat 38 largely aligned
vertically with the ball, and with the bat 38 moving generally
horizontally at the point of impact. When the batter executes a
level swing, (using the palm up palm down technique, keeping the
hands in front of the barrel, and having proper balance and weight
distribution) the target ball 30 slides forward smoothly towards
the stop 18. This movement provides a visual indicator of a proper
swing.
[0013] If the batter "rolls his hands" or lets the barrel get in
front of his hands, the first ball slider 22 will not travel
smoothly along the cord. This will also indicate when the batter is
cutting across the ball. If the position ball 26 is hit, the
batter's swing is too wide and the batter is not getting his/her
hands through before the barrel of the bat. This indicates an
"outside-in" swing, or improper transfer of weight. Hitting the
cord itself indicates an unlevel swing. The cord 12 may be raised
or lowered to desired height. If can be set up on an angle and
lowered to teach batters to hit low pitches in the strike zone,
using the same correct swing.
[0014] The spacing SS between the position ball 26 and the target
ball 30 as shown in FIG. 3 determines the degree of batting
accuracy needed to successfully hit the target ball 30. The closer
the position ball 26 is to the target ball 30, the more accuracy is
needed for a correct hit. Generally, the spacing SS ranges from
about 18 to 36 inches.
[0015] FIG. 1 shows the swing line trainer 10 as used by a right
handed batter 36. The swing line trainer 10 may of course also be
used by a left handed batter in a mirror image position, or with
the left handed batter. The swing line trainer may be symmetrical,
so that either ball 26 or 30 may be the target ball. The swing line
trainer may be used to practice swinging a bat for baseball or
softball training, or for training similar swing movements in other
sports.
[0016] In a basic form, the swing line trainer has only a target
ball or object 30 and a position ball or object 26 on a cord.
Providing an elastic cord 12 with end fittings makes it easier to
set up, since the cord 12 is self tensioning and the end fittings
can be quickly attached to fixed points 50 and 52. However, the
swing line trainer may also be made with a non-elastic cord and
without end fittings, with the ends of the cord simply tied around
and knotted onto the fixed points 50 and 52. The stops 18 and 20
and any cord length adjuster may also be omitted. The balls 26
and/or 30 may also be replaced with other object shapes.
[0017] Allowing both ball sliders 22 and 24 to slide on the cord
provides versatility, although it is not necessary for the position
ball 26 to slide, so that the second ball slider 24 may optionally
be fixed in place on the cord 12. Similarly, although the first and
second ball sliders 22 and 24 appear identical in the drawings,
they may also be provided having different shapes, sizes and
dimensions. The vertical dimension DD in FIG. 3 for the position
ball 26 may optionally be different from the dimension DD for the
target ball 30. The cord 12 may also optionally be replaced by a
tube or bar.
[0018] The swing line trainer 10 may be used indoors or outdoors.
It may be used by the batter 36 alone, with no assistant or helper
is required, and no additional equipment is needed. The swing line
trainer 10 is also easy to carry, set up and use by one person. No
assembly required. It may reduce the need and expense of additional
training equipment.
[0019] Thus, a novel swing trainer has been shown and described.
Various changes and substitutions may of course be made without
departing from the spirit and scope of the invention. The invention
therefore should not be limited except by the following claims and
their equivalents.
* * * * *