Tennis ball container

Information

  • Patent Grant
  • 6494340
  • Patent Number
    6,494,340
  • Date Filed
    Friday, May 11, 2001
    23 years ago
  • Date Issued
    Tuesday, December 17, 2002
    21 years ago
  • Inventors
  • Examiners
    • Castellano; Stephen
    Agents
    • Blank Rome Comisky & McCauley LLP
Abstract
A tennis ball container is disclosed. This container has a top barrier rod (110) having a closed rectangular profile and forming the top structure of a barrier body (100), a bottom barrier rod (120) having a closed rectangular profile and forming the bottom structure of the body. A plurality of side barrier rods (140) extend in a vertical direction between the top and bottom barrier rods to connect them into a single structure, and form two inclined opposite sidewalls of the barrier body. A plurality of elastic barrier rods (150) are vertically arranged inside the side barrier rods while being mounted to the top barrier rod at their top ends such that the rods (150) are elastically displaceable in opposite directions at their bottom portions. Two first handle rods (210) are rotatably attached to the side barrier rods at the opposite sidewalls of the barrier body. Each of the first handle rods includes a U-shaped rod part, with a linear rod part integrated with the ends of the U-shaped rod part. A second handle rod (220), having hinge shafts at its opposite ends, is hinged to each first handle rod at the hinge shafts. Two hinge brackets (400) are mounted to each first handle rod to form hinged joints of the second handle rod, and allow the second handle rod to be rotatable relative to the first handle rod while being elastically compressed.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to containers for tennis balls and, more particularly, to a tennis ball container with a body designed to easily load and reliably contain tennis balls, and a folding handle designed to form a variety of shapes, thus being more conveniently usable while carrying the container or practicing tennis, in addition to being easily stored within a limited space when the container is not used.




2. Description of the Prior Art




Tennis ball containers are used for containing a plurality of tennis balls to allow a user to conveniently pick up the balls while practicing tennis. That is, it is desirable for a user, practicing tennis, to continuously hit a plurality of balls without repeated pauses for gathering or picking up the balls from the ground, and so the balls are required to be contained in a container to allow the user to conveniently use the balls.




Such ball containers may be usable independently or set in a tennis-practicing machine to form a ball container part of the machine.




The tennis ball containers are necessarily designed to easily load and reliably contain tennis balls, in addition to allowing users to conveniently pick up the balls from the containers while practicing tennis. When the structure of the ball containers is designed to be usable for a variety of applications as desired, the operational function of the containers will be enhanced.




In the prior art, a tennis ball container having a body fabricated using a plurality of barrier rods has been proposed and used. This ball container has a rectangular basket structure, with barriers forming the upper, left, right and bottom walls of the structure, and may be usable independently or set in a tennis-practicing machine to form a ball container part of the machine.




When the conventional ball container is used independently without being set in a tennis-practicing machine, it is necessary for a user to feed balls into the container one by one, and so the container is inconvenient to the user. When the ball container is used as a part of a tennis-practicing machine, it is necessary to design the structure of the container to precisely agree with the machine. It is therefore impossible to change the shape of the container.




Therefore, a tennis ball container having a structure capable of being usable independently or as a part of a tennis-practicing machine has been required in the prior art.




In addition, it is preferred to design the tennis ball container such that the top opening of the container is positioned at a height allowing a user's hand to reach the interior of the container and pick up a ball without forcing the user to inconveniently bend his body while practicing tennis on the court.




SUMMARY OF THE INVENTION




Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a tennis ball container, in which the bottom and sidewalls of the barrier body are partially fabricated using a plurality of elastic barrier rods, with the intervals between the elastic barrier rods being elastically enlargeable to allow tennis balls to be loaded into the barrier body through the bottom of the body.




Another object of the present invention is to provide a tennis ball container, of which the handle is foldable upward and downward to be selectively usable as a handle or support legs for the barrier body, the handle thus selectively holding the barrier body at a height above the ground when it is in a fully downward folded position to allow a user's hand to reach the interior of the body and easily pick up a ball without excessively bending his body.




A further object of the present invention is to provide a tennis ball container, of which the handle consists of first and second handle rods having a folding structure, thus being overlapped together and fully laid on the top of the barrier body to form a compact volume of the container when it is desired to store the container within a limited space.




Still another object of the present invention is to provide a tennis ball container, which uses a hinge bracket designed to have a rounded edge allowing a user to easily fold the handle by simply compressing and rotating the handle relative to the bracket with less power.




In order to accomplish the above object, the present invention provides a tennis ball container, comprising: a top barrier rod bent to form a closed rectangular profile, the top barrier rod forming a top structure of a barrier body of the container; a bottom barrier rod bent to form a closed rectangular profile, the bottom barrier rod forming a bottom structure of the barrier body; a plurality of side barrier rods extending in a vertical direction between the top and bottom barrier rods to connect the top and bottom barrier rods into a single structure, and form two inclined opposite sidewalls of the barrier body; a plurality of elastic barrier rods vertically arranged inside the side barrier rods while being mounted to the top barrier rod at their top ends such that the elastic barrier rods are elastically displaceable in opposite directions at their bottom portions; two first handle rods rotatably attached to the side barrier rods at the opposite sidewalls of the barrier body, each of the first handle rods including a U-shaped rod part, with opposite ends of the U-shaped rod part bent inwardly to form two stop ends, and a linear rod part integrated with the two stop ends at its opposite ends; a second handle rod having hinge shafts at its opposite ends, and hinged to the stop ends of each of the first handle rods at the hinge shafts; two hinge brackets mounted to each of the first handle rods at positions around the stop ends to form hinged joints of the second handle rod, and allowing the second handle rod to be rotatable relative to the first handle rod while being elastically compressed.




Each of the hinge brackets surrounds the first handle rod at a position inside each stop end, the hinge bracket also having both a rod holding slit for holding the second handle rod, and a rounded edge for guiding an elastic folding action of the second handle rod relative to the first handle rod.




The two hinge brackets may be mounted to each of the first handle rods such that the rounded edges of the hinge brackets face each other or are opposite to each other.




The tennis ball container also comprises two spacer rods, each of the spacer rods having a plurality of rounded spacer portions, and mounted to the bottom barrier rod at two side surfaces of the barrier body around the bottom portions of the elastic barrier rods.











BRIEF DESCRIPTION OF THE DRAWINGS




The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:





FIG. 1

is a perspective view of a tennis ball container in accordance with the present invention;





FIG. 2

is a perspective view, showing the bottom structure of the container of this invention, designed to load tennis balls into the container;





FIG. 3

is a side view, showing the bottom structure of the container in accordance with the primary embodiment of this invention;





FIG. 4

is a side view, showing the bottom structure of the container in accordance with the second embodiment of this invention;





FIG. 5

is a perspective view, showing the container of this invention held by the hand of a user, standing on the ground, at the handle rods used as a handle;





FIG. 6

is a perspective view of a hinge bracket, with first and second handle rods hinged together through the bracket to form a desired folding structure of the handle included in the container of this invention;





FIG. 7

is a perspective view of the hinge bracket, with the second handle rod completely and elastically seated into the rod holding slit of the bracket after it is rotated under the guide of the rounded edge of the bracket while being compressed;





FIG. 8

is a view of a hinged engagement of the first and second handle rods through two hinge brackets in accordance with the primary embodiment of the present invention;





FIG. 9

is a view of a hinged engagement of the first and second handle rods through two hinge brackets in accordance with the second embodiment of the present invention;





FIG. 10

is a perspective view, showing the container of this invention held at a suspended position above the ground by the handle rods used as support legs; and





FIG. 11

is a perspective view, showing the container of this invention, with the handle rods completely folded and laid on the top of the container to accomplish a compact volume of the container.











DETAILED DESCRIPTION OF THE INVENTION




Reference now should be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.





FIG. 1

is a perspective view of a tennis ball container in accordance with the present invention.




As shown in the drawing, the ball container comprises a knitted barrier body


100


, which is formed by knitting a plurality of barrier rods together to form a basket structure and is used for containing tennis balls. A handle


200


is rotatably attached to two opposite side surfaces of the barrier body


100


at hinged joints. The ball container also has a top cover, provided at the top opening of the barrier body


100


for preventing an undesired removal of the balls from the body


100


.




The construction of the barrier body


100


will be primarily described as follows.




The barrier body


100


has a basket structure with a generally rectangular hexahedral shape. This barrier body


100


is formed by knitting a plurality of barrier rods having a predetermined diameter together to form the desired basket structure, with the intervals between the knitted barrier rods being sufficiently narrow to reliably prevent an undesired removal of the balls from the barrier body


100


through the gaps formed by the intervals.




The bottom structure of the barrier body


100


is formed by one bottom barrier rod


120


, which is bent at four positions to form a rectangular profile. The four corners of the bottom structure are smoothly rounded with a predetermined radius of curvature.




The top structure of the barrier body


100


is formed by one top barrier rod


110


, which has the same structure and profile as those of the bottom barrier rod


120


. However, the top surface area formed by the top barrier rod


110


is larger than that of the bottom barrier rod


120


.




The top and bottom barrier rods


110


and


120


are parallely and horizontally arranged at top and bottom ends of the body


100


while being spaced apart from each other by predetermined height, thus forming top and bottom edges of the body


100


. The top and bottom barrier rods


110


and


120


are integrated into a single body by a plurality of side barrier rods


140


, which regularly and vertically extend between the two barrier rods


110


and


120


to cover the two larger area side surfaces of the body


100


. In such a case, the two larger area side surfaces of the body


100


formed by the side barrier rods


140


are inclined upward and outward since the size of top opening of the body


100


is larger than the bottom of the body


100


.




One reinforcing barrier rod


130


horizontally surrounds the side barrier rods


140


at a middle portion of the body


100


. This reinforcing barrier rod


130


maintains the desired intervals of the side barrier rods


140


, in addition to reinforcing the structural strength and stability of the side barrier rods


140


.




A plurality of elastic barrier rods


150


cover the two smaller area side surfaces of the body


100


in a manner similar to that of the side barrier rods


140


. The intervals of the elastic barrier rods


150


are set to be slightly smaller than the diameter of each tennis ball.




Different from the side barrier rods


140


only covering the two larger area side surfaces of the body


100


, the elastic barrier rods


150


cover the bottom surface of the body


100


, in addition to covering the two smaller area surfaces of the body


100


.




As best seen in

FIG. 2

, the elastic barrier rods


150


, each having a U-shaped profile, are mounted to the top barrier rod


110


at their top ends such that the rods


150


are vertically positioned in the body


100


while being parallely spaced apart from each other. However, the elastic barrier rods


150


may be displaced in opposite directions at their bottom portions when they are forced. It is thus possible to change the intervals between the elastic barrier rods


150


at their bottom portions. The horizontal bottom portions of the elastic barrier rods


150


are arranged above a support surface to be spaced apart from the support surface. In such a case, the horizontal bottom portions of the elastic barrier rods


150


may be arranged at the same height from the support surface as shown in FIG.


3


. Alternatively, the horizontal bottom portions of the elastic barrier rods


150


may be arranged at different heights from the support surface such that the bottom portion of the middle rod


150


is slightly lower than that of the outer rods


150


as shown in FIG.


4


.




Two spacer rods


121


, each having a plurality of rounded spacer portions


121




a


at predetermined positions, are vertically mounted to the bottom barrier rod


120


at the two smaller area side surfaces of the body


100


. The two spacer rods


121


elastically hold the corners of the elastic barrier rods


150


to somewhat limit the elastic deformation of the intervals between the bottom portions of the elastic barrier rods


150


.




Each of the elastic barrier rods


150


, made of metal and having a predetermined diameter, is bent at two portions to form a desired U-shaped profile. The opposite top ends of each elastic barrier rod


150


are mounted to the top barrier rod


110


such that the elastic barrier rods


150


are integrated with the top barrier rod


110


into a single structure.




Since the elastic barrier rods


150


are mounted to the top barrier rod


110


at their top ends, but not fixed at their horizontal bottom portions as described above, the elastic barrier rods


150


may be displaced in opposite directions at their bottom portions when they are forced. Therefore, the intervals between the elastic barrier rods


150


at the bottom structure of the body


100


may be elastically deformed. It is thus possible to load tennis balls from the ground into the body


100


through the bottom of the body


100


.




That is, tennis balls may be fed into the body


100


through the top opening of the body


100


. However, such a feeding of balls into the body


100


through the top opening sometimes causes inconvenience to a user. That is, the bottom structure of the body


100


with the elastically deformable intervals between the elastic barrier rods


150


allows a user to load balls into the body


100


through the bottom structure in place of the top opening. When a user presses the body


100


down against a ball on the ground while standing on the ground, the interval between two elastic barrier rods


150


is elastically enlarged by pressure applied from the ball, thus allowing the ball to pass through the interval into the body


100


.




The handle


200


has a folding structure with two pairs of handle rods: two first handle rods


210


and two second handle rods


220


. The two first handle rods


210


are hinged to the two second handle rods


220


to form a desired folding structure of the handle


200


. The two first handle rods


210


of the handle


200


are rotatably attached to the two larger area side surfaces of the barrier body


100


at hinged joints. Each of the first handle rods


210


includes a U-shaped rod part, with opposite ends of the U-shaped rod part being bent inwardly to form two stop ends. A linear rod part is integrated with the two stop ends of the U-shaped rod part at its opposite ends, thus forming a closed rectangular profile of each second handle rod


210


in cooperation with the U-shaped rod part.




Due to the hinged structure of the handle


200


having the handle rods


210


and


220


, the handle rods


210


and


220


may be collaterally usable as support legs in a fully downward folded position of

FIG. 10

, in addition to being primarily usable as a handle in a fully upward folded position of FIG.


5


. When the handle rods


210


and


220


form support legs as described above, the barrier body


100


is positioned above the ground such that the top opening of the body


100


is positioned at a height allowing a user's hand to reach the interior of the body


100


and pick up a ball without forcing the user to inconveniently bend his body.




In a detailed description, each of the two first handle rods


210


is hinged to two hinge bosses


160


attached to the side barrier rods


140


at each larger area side surface of the body


100


. Each of the two second handle rods


220


is hinged to an associated first handle rod


210


using two hinge brackets


400


.




Each of the second handle rods


220


is bent to form an inverted U-shaped profile. The opposite ends of each second handle rod


220


are bent inwardly or outwardly to form hinge shafts


222


.




As shown in

FIGS. 6 and 7

, each of the hinge brackets


400


is made by bending a metal plate, having a predetermined thickness, such that the bracket


400


surrounds a lower end of the first handle rod


210


. Each hinge bracket


400


has both a hinge hole


410


and a rounded edge


420


.




A rod holding slit


430


is vertically defined within each hinge bracket


400


, and holds the end of the second handle rod


220


when the second handle rod


220


is in its fully upward folded position or fully downward folded position with the hinge shaft


222


movably fitted into the hinge hole


410


.




The operational function of the hinge brackets


400


is to provide hinge joints for the hinge shafts


222


of the inverted U-shaped second handle rods


220


, thus allowing a smooth folding action of the second handle rods


220


. The hinge brackets


400


also allow the second handle rods


220


to be elastically and reliably seated into the rod holding slits


430


of the brackets


400


when the rods


220


move upward or downward along the rounded edges


420


while being somewhat elastically compressed. In the present invention, the hinge brackets


400


may be mounted to each of the first handle rods


210


such that the rounded edges


420


of the hinge brackets


400


face each other or are opposite to each other.





FIGS. 8 and 9

show two embodiments of the engagement of the hinge shafts


222


of a second handle rod


220


with the hinge brackets


400


.




In the embodiment of

FIG. 8

, the opposite ends of each second handle rod


220


are bent inwardly to form inward hinge shafts


222


. In the embodiment of

FIG. 9

, the opposite ends of each second handle rod


220


are bent outwardly to form outward hinge shafts


222


. The inward hinge shafts are more preferable than the outward hinge shafts since the outward hinge shafts are projected outwardly from the brackets


400


to undesirably injure a user.




In the tennis ball container of this invention, the two second handle rods


220


are preferably designed such that one of the two rods


220


is slightly smaller than the other in its width. It is thus possible to neatly seat one second handle rod


220


into the other, thus preventing the handle


200


from being undesirably bent, distorted or deformed due to impact, or injure the hand of a user holding the handle


200


.





FIG. 10

shows the handle


200


when the two pairs of handle rods


210


and


220


are fully folded downward to form support legs for supporting the barrier body


100


on the ground.




At the fully downward folded position of the handle


200


, the barrier body


100


is positioned above the ground such that the body


100


is positioned at a height allowing a user's hand to reach the interior of the body


100


and pick up a ball without forcing the user to inconveniently bend his body.




When storing the ball container of this invention in a limited space, such as the trunk of a car, the ends of the second handle rods


220


are primarily forced to accomplish their rotatable positions relative to the rod holding slits


430


of the hinge brackets


400


. Thereafter, the two second handle rods


220


are rotated inward until the rods


220


are fully laid on the top edge of the barrier body


100


with the top portions of the rods


220


overlapped together.




It is thus possible to accomplish a desired compact shape of the ball container while preventing the handle


200


from forming any excessive volume, and so the container is suitable for storage in such a limited space.




As described above, the present invention provides a tennis ball container. In this container, the elastic barrier rods, forming the bottom surface of the container body having a basket structure, may be displaced in opposite directions when they are forced. Therefore, the intervals between the elastic barrier rods at the bottom structure may be elastically deformed, and allow a user to load balls into the body through the bottom structure by pressing the body down against a ball on the ground while standing on the ground. This ball container is thus convenient to the users.




The container of this invention also has a plurality of hinge brackets, which primarily provide hinge joints for the inverted U-shaped second handle rods of the handle, thus allowing a smooth folding action of the second handle rods. The hinge brackets also allow the second handle rods to be elastically and reliably seated into the rod holding slits of the brackets when the handle rods move upward or downward along the rounded edges of the brackets while being somewhat elastically compressed. It is thus possible to easily and simply fold the handle relative to the container body upward or downward with less power.




Although a preferred embodiment of the present invention has been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.



Claims
  • 1. A tennis ball container, comprising:a top barrier rod bent to form a closed rectangular profile, said top barrier rod forming a top structure of a barrier body of the container; a bottom barrier rod bent to form a closed rectangular profile, said bottom barrier rod forming a bottom structure of the barrier body; a plurality of side barrier rods extending in a vertical direction between the top and bottom barrier rods to connect the top and bottom barrier rods into a single structure, and form two inclined opposite sidewalls of the barrier body; a plurality of elastic barrier rods vertically arranged inside the side barrier rods while being mounted to the top barrier rod at their top ends such that the elastic barrier rods are elastically displaceable in opposite directions at their bottom portions; two first handle rods rotatably attached to the side barrier rods at the opposite sidewalls of the barrier body, each of the first handle rods including a U-shaped rod part, with opposite ends of the U-shaped rod part bent inwardly to form two stop ends, and a linear rod part integrated with the two stop ends at its opposite ends; a second handle rod having hinge shafts at its opposite ends, and hinged to the stop ends of each of the first handle rods at the hinge shafts; two hinge brackets mounted to each of the first handle rods at positions around the stop ends to form hinged joints of the second handle rod, and allowing the second handle rod to be rotatable relative to the first handle rod while being elastically compressed.
  • 2. The tennis ball container according to claim 1, wherein each of the hinge brackets surrounds the first handle rod at a position inside each stop end, said hinge bracket also having both a rod holding slit for holding the second handle rod, and a rounded edge for guiding an elastic folding action of the second handle rod relative to the first handle rod.
  • 3. The tennis ball container according to claim 1, wherein the two hinge brackets are mounted to each of the first handle rods, said brackets having rounded edges that face each other.
  • 4. The tennis ball container according to claim 1, wherein the two hinge brackets are mounted to each of the first handle rods, said brackets having rounded edges that are opposite to each other.
  • 5. The tennis ball container according to claim 1, wherein two spacer rods, each having a plurality of rounded spacer portions, are mounted to the bottom barrier rod at two side surfaces of the barrier body around the bottom portions of the elastic barrier rods.
  • 6. The tennis ball container according to claim 2, wherein the two hinge brackets are mounted to each of the first handle rods such that the rounded edges of the hinge brackets face each other.
  • 7. The tennis ball container according to claim 2, wherein the two hinge brackets are mounted to each of the first handle rods such that the rounded edges of the hinge brackets are opposite to each other.
US Referenced Citations (4)
Number Name Date Kind
2835099 Touchbery May 1958 A
4281849 Chandick et al. Aug 1981 A
4461504 Perez et al. Jul 1984 A
5507541 Chen et al. Apr 1996 A