U.S. patent number 3,583,703 [Application Number 04/772,516] was granted by the patent office on 1971-06-08 for practice pitching devices.
Invention is credited to William S. Brown, Eldon L. Kemph.
United States Patent |
3,583,703 |
Brown , et al. |
June 8, 1971 |
PRACTICE PITCHING DEVICES
Abstract
A baseball practice pitcher's target having a plurality of frame
parts comprising tubular members releasable connected to one
another in an end-to-end relationship to from a substantially
square frame. The frame is provided with two tubular members
perpendicularly attached to the frame at two of its corners for
supporting the frame in an upright position. A target simulating an
average strike zone comprising a string joined as an endless loop
is centrally suspended within the frame by four support lines
secured at spaced points about the perimeter of the target and
attached to hook eye elements secured approximate each corner of
the frame. The target is divided into four sections by two string
elements positioned perpendicular to each other and having their
ends attached midway the sides of the rectangular strike zone
target. A target of smaller dimensions simulating the strike zone
for little league ball players is also provided.
Inventors: |
Brown; William S. (Enid,
OK), Kemph; Eldon L. (Enid, OK) |
Family
ID: |
25095331 |
Appl.
No.: |
04/772,516 |
Filed: |
November 1, 1968 |
Current U.S.
Class: |
473/456 |
Current CPC
Class: |
A63B
63/00 (20130101) |
Current International
Class: |
A63B
63/00 (20060101); A63d 069/40 () |
Field of
Search: |
;273/26,29,102,176,181 |
References Cited
[Referenced By]
U.S. Patent Documents
Other References
POPULAR MECHANICS, August 1962, pages 128--129.
|
Primary Examiner: Oechsle; Anton O.
Assistant Examiner: Brown; Theatrice
Claims
What we claim is:
1. A baseball pitching target defining an average strike zone which
can be readily disassembled into a plurality of component frame
parts of predetermined, generally uniform length, comprising:
a first frame portion formed by a pair of frame parts of
predetermined length affixed in end-to-end relationship and
including a pair of hook eyes secured to said frame portion
proximate each end thereof, each of said frame parts consisting of
tube means of said predetermined length, sleeve means rigidly
secured on the end of said tube means, said sleeve means being
positioned approximately half way over said tube means, and
clamping screw means disposed through said sleeve means outer
portion;
a second frame portion formed by a similar pair of said frame parts
of predetermined length affixed in end-to-end relationship and
including a pair of hook eyes secured to said second frame portion
proximate each end thereof;
a base frame portion formed by a pair of frame parts of
predetermined length affixed in end-to-end relationship;
a pair of support parts of predetermined length;
a pair of junction means each affixed proximate a midpoint of each
of said support parts, each of said junction means providing rigid
affixture to opposite ends of said base frame portion, and each of
said junction means providing rigid affixture to the respective
lower ends of said first and second frame portions;
a top frame portion formed by a pair of frame parts of
predetermined length affixed in end-to-end relationship and having
opposite ends secured to the upper ends of said respective first
and second frame members;
string means joined as an endless loop and having a perimeter equal
to the length of an average strike zone perimeter;
four support lines secured at spaced points about the perimeter of
said string line means, each of said support lines being secured to
one of said hook eyes proximate each end of said first and second
frame portions to support said string line means as an upright
rectangle approximating said average strike zone; and
additional string means joined in an endless loop of a size smaller
than said first mentioned string means loop and approximately equal
to that of a Little League players strike zone, and an additional
set of four support lines each longer in length than said first
mentioned support lines and secured at spaced points about the
perimeter of said additional string means so that said practice
pitching device can be converted to Little League practice use.
2. A practice pitching device as set forth in claim 1 which is
further characterized in that each of said first, second, top and
base frame portions can be disassembled into their constituent
frame parts of predetermined length, and said plurality of frame
parts can be inserted and tightly held between said support parts
and respective junction means for secure packaging.
3. A practice pitching device as set forth in claim 2 which is
further characterized in that said packaged frame and support parts
are approximately 3 feet in length to enable convenient storage and
portability.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates generally to baseball practice apparatus and,
more particularly, but not by way of limitation, it relates to an
improved pitching practice apparatus which is durable in use and
facile in handling and storage.
2. Description of the Prior Art
The prior art includes various forms of practice apparatus which
function to supply some type of target, either moving or
stationary, for a thrown missile, ball, or whatever. Of these prior
types there are two which function to support some form of pitching
string line, this in itself being a well known and longtime
employed form of pitching exercise. The earliest of such string
line supports was simply two spaced posts sunk in the earth and
supporting a string line between them in some selected manner.
Later types of apparatus growing out of the early concept evolved
into various forms of metal or wooden frame structure; however,
these prior structures were of a more permanent nature requiring
considerable work and time in their disassembly and/or considerable
expenditure of effort and waste of space in their storage.
SUMMARY OF THE INVENTION
The present invention contemplates practice pitching apparatus
which is easily assembled and set up from a compact, lightweight
package. In a more limited aspect, the invention consists of a
frame member made up of a plurality of frame parts which are of
approximately equal, predetermined length, each frame part
including interconnecting affixture means formed integral
therewith. Still another pair of support frame parts include
affixture means for supporting the frame member upright on a flat,
horizontal surface, and the frame member then supports a string
outline of an average strike zone within its bounds by means of
resilient supporting lines.
Therefore, the object of the present invention is to provide a
practice pitching device which can be easily disassembled and
bundled as a relatively short parcel capable of storage in standard
baseball equipment bags, restricted motor carrier spaces, etc.
It is also an object of the invention to provide a practice
pitching device which is adaptable for use by adult sized players
or by players of more diminutive average size such as that of a
group of Little League players.
Finally, it is an object of the present invention to provide
pitching apparatus which is extremely sturdy in use, and yet is
lightweight and easily assembled and disassembled for disposition
into a small, easily handled parcel.
Other objects and advantages of the invention will be evident from
the following detailed description when read in conjunction with
the accompanying drawings which illustrate the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the pitching apparatus of the
present invention;
FIG. 2A illustrates the individual frame parts contained in the
frame and support members of FIG. 1; and
FIG. 2B depicts the packaged practice device as the individual
parts each of predetermined length are bundled together.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A practice device 10 of FIG. 1 consists of a frame member 12
supported in perpendicular, upright manner by means of a pair of
support members or parts 14 and 16. The frame member 12 supports a
string line strike zone 18 centrally therein by means of four,
diagonally arrayed support lines 20, 22, 24 and 26.
The frame member 12 consists of a first side frame portion 28 which
is made up of upper frame part 30 and lower frame part 32 which are
rigidly secured together. The frame parts 30 and 32 are each formed
to be of a predetermined length which is consonant with the
handling and ease of storage aspects of the invention, e.g. 3 foot
lengths, and each is formed with a securing fixture fastened
thereon. Thus, one end of frame part 30 has a securing sleeve 34
inserted partially, i.e. about half way, over the end of frame part
30 whereupon it is securely fastened as by welding, brazing or
such. A setscrew or thumbscrew 36 is then disposed through the
upper end of securing sleeve 34 and its serves as a tightening or
fastening agent with respect to any tubular member inserted within
securing sleeve 34 as will be further described. The lower frame
part 32 is similarly formed with a securing sleeve 38 fastened
thereon and having a thumbscrew 40 disposed through the upper or
hollow end of securing sleeve 38.
An opposite side frame portion 42 is made up of similar structure.
That is, an upper frame part 44 having a securing sleeve 46 and
thumbscrew 48 fastened to its upper end, and a lower frame part 50
having a securing sleeve 52 and a thumbscrew 54 fastened to its
upper end. The lower end of upper frame part is then inserted
within sewing sleeve 52 of lower frame part 50 and upon tightening
of thumbscrew 54 the assembly of side frame portion 44 is
complete.
A top frame portion 56 is similarly constructed of a pair of
end-to-end joined, curved frame parts 58 and 60. The top frame
parts 58 and 60, although curved on the ends, still adhere
generally to the requirement of being the predetermined length.
Thus, top frame part 58 is formed with one end 62 bent into a
relatively tight 90.degree. turn while the other end is fitted with
a securing sleeve 64 and a thumbscrew 66. The remaining top frame
part 60 is made up merely of the frame part 60 having one end 68
for insertion within securing sleeve 64 and having the other end 70
bent into a similar 90.degree. form for insertion and clamping
within securing sleeve 34 of side frame portion 28.
Each of support bars 14 and 16 includes a centrally disposed
junction fixture 72 and 74, respectively. Junction fixture 72
consists of a pair of securing sleeves 76 and 78 which are secured
as by welding, brazing or such at right angles to each other as
well as in perpendicular affixture to a central portion of support
part 14. Securing sleeve 76 then projects upward to receive frame
part 50 therein and a thumbscrew 80 threaded through sleeve 76
serves to tighten and maintain the junction secure. Similarly, the
perpendicularly extending securing sleeve 78 receives one end of a
bottom frame portion 82 and a thumbscrew 84 provides secure
affixture. The same structure is employed for the opposite support
part 16. A pair of perpendicularly disposed securing sleeves 86 and
88 are securely fastened to a central point along support parts 16
and respective thumbscrews 90 and 92 provide the tightening and
securing function with respect to the lower portion of side frame
portion 28 and the other end of bottom frame portion 82.
The bottom frame portion 82 is made up of a pair of frame parts 94
and 96 which, once again, adhere to the size requirement of being a
selected length consonant with the packaging and storage features.
The bottom frame part 94 may be constructed similar to each of the
side frame parts 30, 32, 44 and 50; that is, the frame part 94 has
a securing sleeve 98 with thumbscrew 100 rigidly secured to one end
thereof. The remaining bottom frame part 96 may merely be a length
of frame material cut to the predetermined length and secured in
each of securing sleeves 98 and securing sleeve 88 of support part
16.
Each of the individual frame parts, viz. frame parts 44, 50, 58,
60, etc., as well as support parts 14 and 16 may be formed from any
of various structural materials. However, in the present case where
overall weight and handling is a factor, the individual frame parts
may be made from aluminum conduit or such, this tending to lend
desired lightweight characteristics while providing more than
adequate strength. Thus, in one form, the practice pitching device
10 was constructed with bottom frame parts 94 and 96 and support
parts 14 and 16 constructed from 3/4-inch aluminum tubing while the
remaining side and top frame parts 30, 32, etc. were formed from
one-half -inch aluminum tubing.
A hook eye 102 is secured through each of the top and bottom
extremities of side frame portions 28 and 42. Each of hook eyes 102
is inserted through the respective frame parts 30, 32, 44 and 50
and secured as by a nut 104 or other such fastening means. Thus,
the pitching target or string line strike zone 18 is supported
generally centrally within frame member 12 by means of the support
lines 20, 22, 24 and 26 extending outward for connection to
respective ones of hook eyes 102. Fastening of support lines 20--26
to respective hook eyes 102 may be by means of snap hooks or such
to provide rapid affixture and adjustment.
The string line strike zone 18 consists of a relatively heavy loop
106 of material such as commercially available braided polyethylene
rope. Such material blends characteristics of high strength plus
resistance to stretching through repeated use. The support lines
20, 22, 24 and 26 may each be a length of braided nylon string,
each length being securely connected to string line or rope 106 at
respective points 108, 110, 112 and 114 therearound. It is
preferable that that joiner of the support lines 20--26 to their
respective points 108--114 on zone rope 106 be effected in
nonslidable manner. That is, either by interweaving the materials a
sufficient number of continuities, or by a heat fusion application
as is well known. This then assures that a properly dimensioned
rectangular strike zone will be set up each time the string line 18
is suspended within frame 12.
A further pair of quadrant zoning lines 116 and 118, e.g. also a
braided nylon string, may be slidingly connected across opposite
sides of the zone rope 106. Thus, each of the strings 116 and 118
can be adjusted to proportion the size of respective zone quadrants
120, 122, 124 and 126 as necessitated by various practice
exercises.
It is also contemplated that a separate and easily detachable
strike zone string assembly 18 may be supplied for use in Little
League pitching practice where the average strike zone is
appreciably smaller. Thus, for adult size use, the diagonal support
lines 20, 22, 24 and 26 are each 26 inches in length while the
strike zone is dimensioned at 39 inches high by 17 inches wide. An
alternative string line assembly 18 for use with Little Leaguers
may employ a strike zone having the dimensions of 34 inches by 15
inches with upper diagonal support lines 20 and 22 being 31 inches
long and lower diagonal support lines 24 and 26 being 25 inches
long.
FIG. 2A shows each of the individual frame parts as when
disassembled, and FIG. 2B shows a general outline of the
compactness and general disposition of individual frame parts when
they are bundled into the carrying or storage package. Thus, in
packaging, each of the support pieces 14 and 16 serve as a
packaging frame since their right angularly projecting securing
sleeves 78, 80, 86 and 88 provide a gathering or gripping extension
for holding the remaining linear frame parts therebetween. Thus, as
shown in FIG. 2B, support part 16 and its right-angle securing
sleeves 86 and 88 reinforce the frame part bundle on one side while
the other side is supported by the remaining support part 14 (not
shown) as it extends its right-angle securing sleeves 76 and 78
around the other side of the various frame parts. The entire bundle
can be secured as by such as a pair of straps 130 and 132 and the
array of support lines and zone ropes 106 can be included either by
placement in the bundle or by wrapping and tying around the
bundle.
While the device is described as utilizing couplings consisting of
a securing sleeve secured to and extending from one end of each
frame portion with a coupling thumbscrew for securing to a next
adjacent frame portion, various equivalents may be employed. For
example, each coupling may consist of a freely detachable sleeve
having thumbscrews at each end for securing to each of the two
adjacent frame portions.
The foregoing discloses a novel practice pitching device which may
be used not only at or near a permanent practice site but, due to
its ease of disassembly and compact storage capability, can be
easily hauled or carried within a standard equipment bag to provide
string line pitching practice at any desired location. The
invention enables the construction of an economical yet extremely
sturdy and reliable string pitching target and, in addition, the
device is readily adaptable for practice use by Little League
personnel as well as by adult sized players. Further, the device is
easily broken down into a compact bundle which is readily storable
in such manner that teams, individuals or such not having access to
official or permanent storage facility can still have the benefit
of a time-honored pitching practice exercise.
Changes may be made in the combination and arrangement of elements
as heretofore set forth in this specification and shown in the
drawings; it being understood, that changes may be made in the
embodiments disclosed without departing from the spirit and scope
of the invention as defined in the following claims.
* * * * *