Overhead sports assembly

Information

  • Patent Grant
  • 6511391
  • Patent Number
    6,511,391
  • Date Filed
    Thursday, April 5, 2001
    24 years ago
  • Date Issued
    Tuesday, January 28, 2003
    22 years ago
Abstract
An overhead sport assembly includes a mast pivotally coupled to an overhead structure near a first end of the mast, and a sport apparatus, such as a basketball goal or volleyball net, for example, coupled near a second end of the mast. A pair of braces hold the masts in the play position. The braces include a first brace with a first end pivotally coupled to an overhead structure at a pivot point displaced from the first end of the mast, and a second brace with a first end pivotally connected to the mast at a pivot point displaced from the first end of the mast. The second ends of the braces are pivotally coupled to a connector at respective pivot points displaced from one another along the connector. The braces and the connector being cooperatively configured to allow the braces to pivot from the stowed position to the play position, and further configured to prevent further rotation past the play position.
Description




BACKGROUND OF THE INVENTION




Overhead mounted sports equipment is well-known. For example, basketball goals may be suspended from overhead structures and pivoted between a play position and an overhead stowed position. The development of brackets and connectors used to suspend the equipment, however, continues to progress and improve.




Typically, a sporting apparatus, such as a basketball goal, was held in the play position by a pair of pivotally linked braces. In this typical arrangement, one brace was pivotally coupled to an overhead structure, and the other brace was pivotally connected to a mast which supported the apparatus. The braces were pivotally linked to one another at a single pivot point.




A linking mechanism was developed in order to lock out the braces when the goal was in the play position. The linking mechanism of the prior art coupled the pair of braces together in such a way as to “lock” the sporting apparatus into a play position. Additionally, the prior art provided a means for allowing the braces to rotate relative to one another until the braces reached the play position; however, when the braces reached the play position, they locked and were prevented from further rotation. This created a relatively stable goal for many purposes.




However, the typical locking linking mechanism of the prior art had a pivot point that was generally slightly offset from the longitudinal axes of the braces. Therefore, a strong compressive force in the braces—such as the force of a slam-dunk or one hanging on the rim—created a natural moment about the pivot point. This induced moment caused the braces to unlock.




Once the braces came unlocked, the braces had to be locked in order to make the apparatus stable once again. In order to address this problem, the prior art developed further. Specifically, the sport apparatus could be pivotally coupled at its mast in an off-center arrangement in order to create a natural moment—a moment caused by the weight of the mast—that tended to rotate the mast away from the braces and induce tensile forces in the braces. Therefore, if the braces became unlocked, the moment could act to pull the prior-art linking mechanism back to its locked position.




Notwithstanding the improved off-center mounting arrangement, the relocking of the braces often could not occur on its own, without manual assistance or urging; sometimes, the natural moment due to the off-center mounting of the mast did not induce enough pull to re-lock the braces.




In addition to the above-referenced problem in the prior art, other shortcomings existed. The prior art link coupled the pair of braces directly to one another. Therefore, there was a pre-set pattern for each of the links to follow as the apparatus was moved between the play and stowed positions. The placement of each of the pivot points was critical. Minor errors in placement of these points could cause the overhead sports assembly of the prior art to not fold or stow properly. The requirement for precision placement of the pivot points, ofcourse, required increased installation costs.




Additionally, the braces and mast will deform and creep over time. Joints may erode, braces may slightly expand, or welds may stretch. etc. Thus, a system that was properly installed and working smoothly initially may cease to fold properly.




The current invention addresses many of the shortcomings of the prior art. The invention provides a link between braces of an overhead sporting apparatus that will provide a sturdy support, and will also accommodate minor errors in installation and changes in the materials by allowing for a slight degree of ‘play’ that was not present in the prior art arrangement.




SUMMARY OF THE INVENTION




The invention relates to an overhead sport assembly, such as a basketball goal or volleyball net, movable between a play position to a stowed position. The assembly includes a mast pivotally coupled to an overhead structure near a first end of the mast. A pair of braces hold the masts in the play position. A first brace is pivotally coupled near its first end to an overhead structure at a pivot point displaced from the first end of the mast. A second brace is pivotally connected near its first end to the mast at a pivot point displaced from the first end of the mast.




A connector links the second ends of the braces. The second ends of the braces are pivotally coupled to the connector body at respective pivot points displaced from one another along the connector. Preferably, the pivot points are substantially aligned when the apparatus is in the play position.




Typically, the overhead sports apparatus may be incorporated into an overhead basketball goal support; however, the apparatus may have other applications, such supports for nets for volleyball, badminton, or tennis, for example.




In the event one uses the invention as a basketball support apparatus, the invention will include a backboard with a front face. Generally, the backboard is mounted adjacent a second end of the mast. The braces of the assembly may be mounted to extend either behind or in front of the backboard.




The braces and the connector may be cooperatively formed so that, when in the play position, the first brace is allowed to rotate about with respect to the connector body only in a first direction of rotation, and the second brace is allowed to rotate with respect to the connector body opposite the first direction.




A yoke having aligned holes may extend from respective second ends of each of the first and second braces. In order to pivotally connect the braces to the connector, a pin extends through respectively aligned holes in the connector and yokes, each pin thereby defining a pivot point. Alternatively, the position of the yokes may be reversed; the yokes may extend from opposite ends of the connector.




In another embodiment, the connector includes a pair of spaced-apart plates, each plate having a pair of spaced-apart holes. In this embodiment, the second ends of each of the first and second braces terminate in a web having a hole. The braces are pivotally coupled to the connector by inserting a pin through the respectively aligned holes to define respective pivot points. In this embodiment, at least one torsion spring may be positioned between the spaced apart plates in order to bias the braces toward the play position.




The assembly will also include a stop configured to prevent the braces from extending past the play position. The stop includes a first portion on the connector extending from the connector parallel to its longitudinal axis, and a second portion on the connector substantially perpendicular its longitudinal axis. The stop further includes a raised area on the second end of each brace, each raised area having a first portion substantially parallel to a longitudinal axis of the respective brace. The raised area also has a second portion substantially perpendicular to the longitudinal axis of the brace. Each of the connector and raised areas include respective intermediate portions connecting the first and section sections. The first, second and intermediate portions are all cooperatively configured to respectively engage one another when the assembly is in the play position.




The raised area further comprises an angled portion extending from the second section and disposed at an acute angle with respect to the longitudinal axis of the brace in a direction away from the connector. The angled portion provides a clearance as the connector rotates with respect to the brace. The connector may have chamfered ends configured to allow clearance as the assembly is moved toward the stowed position.




Typically, the connector further includes an intermediate, curved portion connecting the first and section portions of the connector. The raised area also further includes an intermediate portion connecting the first and second portions of the raised area. Thus, the respective intermediate portions of the raised area and the connector will engage one another when in the play position.




The apparatus may also have an off-center coupling arrangement coupling the mast to the overhead structure. In order to accomplish this off-center coupling, the mast is coupled to the overhead structure at a location displaced from the longitudinal axis of the mast, thereby creating a rotating moment configured to create tensile force in the braces when the assembly is in the play position.




A torsion spring may be provided between the connector and the second end of the braces.




The apparatus may also include a cable and pulley arrangement configured to allow an operator to selectively move the mast between the stowed and play positions. A rod may extend from one of the first brace, second brace, or connector. As the cable is pulled in order to pivot the mast toward the stowed position, the cable moves the rod and causes the braces to break from the play position toward the stowed position.











Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings.




BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a side view of an overhead apparatus of the prior art.





FIG. 2

is a side view of an overhead apparatus, according to the principles of the current invention.





FIG. 2A

is a side view of an overhead apparatus, showing a second configuration of the brace assembly according to the principles of the invention.





FIG. 3

is an exploded view of one embodiment of the connector, according to the principles of the current invention.





FIG. 4

is a front view of the connector and braces of the current invention, shown in the play position.





FIG. 5

is a front view of the c braces of the current invention, shown in the stowed position.





FIG. 6

is a plan view of the connector and braces of the current invention, shown in the play position.





FIG. 7

is an exploded view of another embodiment of the connector, according to the principles of the current invention.





FIG. 8

is an exploded view of another embodiment of the connector, according to the principles of the current invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS





FIG. 1

depicts an overhead assembly


10


of the prior art. A basketball backboard and rim apparatus


31


is connected adjacent the lower end


26


of a mast


24


that is pivotally coupled to an overhead structure


12


at its top end


25


. The mast


24


has a central axis


29


(shown in FIG.


2


). The mast


24


is coupled at a location


25


displaced from its central axis


29


, thereby creating a natural moment M tending to rotate the mast


24


and backboard and goal assembly


31


past the vertical plane. The apparatus


10


of the prior art, as shown in

FIG. 1

further comprises the pair of linked braces


14


connecting the mast


24


and the overhead structure


12


. The pair of braces


14


comprises a first brace


16


and a second brace


20


held together by the linking apparatus


23


. The linking apparatus


23


pivotally couples the end


18


of first brace


16


to the end


22


of second brace


20


.




Referring still to

FIG. 1

, each of the first


16


and second


20


braces have longitudinal axes which are substantially aligned along a longitudinal axis when the mast


24


is in the play position. The link


23


is in two parts; each respective part of the link


23


is welded to the second ends


18


,


22


of braces


16


and


20


. The link


23


has a pivot P about which the ends


18


,


22


rotate. The ends


18


,


22


abut one another when the braces


14


are in the play position, as shown in

FIG. 1

, thereby preventing further relative rotation past the play position.




The prior art apparatus shown in

FIG. 1

shows a cable


27


and pulley


51


setup allowing one to pivot the mast


24


about pivot point at location


25


in order to selectively move the mast between the play and stowed positions. A rod


42


may be provided on one of the braces or link


16


,


20


,


23


. Preferably, the rod may be coaxial with the pivot point P. The cable


27


, pulley


51


, and rod


42


are cooperatively configured so that, as the cable


27


is pulled taut—as it is when one desires to raise the mast


24


—the cable


27


will straighten and move the rod


42


, thereby causing the braces


14


to crack from the play position. When the assembly


10


is in the play position, the rod


42


is slightly displaced from a line defined by the pulley


51


and attachment point


53


on the mast


24


. As the cable


27


is pulled tight, the cable straightens, which moves the rod


42


from the locked-in-play position, and urges the braces


14


toward the stowed position.




As shown in

FIG. 1

, the pivot P is offset from the longitudinal axis of the braces


14


. As such, compressive forces in the brace


14


will cause a moment about pivot P. This induced moment may cause the braces


16


,


20


to crack, creating an unsteady situation.




A hard slam dunk on the apparatus


37


will create a moment about pivot P that could cause the braces


14


to crack about the pivot P, thereby taking the apparatus


10


out of the play position. Once the braces


14


were “unlocked” from the play position, they often remained unlocked. The moment created by the offset mounting of the mast


24


was insufficient to relock the braces. The alternative was to play a game where the apparatus was unsteady and could move in response to contact. Returning the braces


14


to the locked, play position required labor and time. Of course, this may result in unwanted delays, labor costs, and hassles.




The prior art apparatus as shown in

FIG. 1

, which has a single pivot P, in the link


23


required precision installation. In the event one of the pivotal couplings


17


,


21


,


25


was not precisely located, the apparatus


10


would not fold properly to the stowed position. A slight installation error of only a few inches could cause the entire system to improperly fold. Additionally, the creep or natural deformation of the material over time would alter the general configuration of the overhead assembly, thereby creating the possibility that the system


10


would not stow correctly or smoothly.





FIG. 2

shows the current invention, which can be used for overhead sports assemblies, such as basketball goals or volleyball nets. The invention shown in

FIG. 2

addresses the shortcomings of the prior art by providing a connector that does not link the ends of the braces directly to one another.





FIG. 2

depicts the present invention comprising an overhead apparatus


10


′ having a mast


24


pivotally coupled adjacent a location


25


to an overhead structure


12


. Those elements having the same structure or function as those in the prior art

FIG. 1

have the same reference numbers. The mast


24


is coupled to the overhead structure


12


at a location displaced from central axis


29


of the mast


24


, thereby inducing a moment M and inducing a tendency to rotate mast


24


in a counter clockwise direction, as shown. The moment M induces tensile forces in braces


14


. The braces


14


comprise a first brace


16


pivotally coupled


17


at a first end to the overhead structure


12


, and a second brace


20


pivotally connected


21


at a first end to the mast


24


. The second end


18


of first brace


16


is linked to the second end


22


of second brace


20


at a connector


28


. Connector


28


pivotally receives the second ends


18


,


22


of each of the braces


16


,


20


at displaced pivot points P


1


, P


2


, as shown in FIG.


3


. The spaced-apart arrangement of the pivot points P


1


, P


2


allows an arrangement wherein all of the pivot points


17


,


21


, P


1


and P


2


are substantially aligned. Additionally, the spaced-apart pivot points P


1


, P


2


allow for some degree of play Pl as shown in

FIG. 5

, in the positioning of the assembly


10


′ as it is folded to the stowed position. These features will be discussed in greater detail herein.




Referring again to

FIG. 2

, the mast


24


supports a basketball backboard and rim apparatus


31


adjacent its second end


26


. However, any other equipment, such as a volleyball net, may also be attached adjacent the second end


26


of the mast


24


by using a pair of spaced apart masts


24


in lieu of a single mast. If the assembly


10


′ is used for volleyball, each mast


24


will include its own braces


14


and connector


28


.




As shown in

FIG. 2

, the invention includes a cable


27


and pulley or winch


51


arrangement is included in order to move the mast


24


between the play and stowed positions. The cable


27


is typically connected to the mast at its end, and operated by a pulley


51


located near the overhead structure


12


. As the mast


24


is lowered to the play position, the pair of braces


14


and the connector


28


all align and “lock.” Thereupon, the cable


27


may no longer form a straight line, and may even become slack.





FIG. 2A

shows another embodiment of the invention. Many of the key elements are similar to the embodiment shown in

FIG. 2

; thus, similar elements that perform similar functions are given the same reference numerals as in FIG.


2


. Note that in

FIG. 2

, the braces are mounted and extend behind the backboard


37


. In contrast, the embodiment depicted in

FIG. 2A

shows the bracket mounted to the mast and extending in front of the backboard


37


. In this configuration, the brace assembly


14


is over the playing surface and thus may overhang the playing surface. In the embodiment shown in

FIG. 2A

, it is preferred that the second end


21


of the brace


20


be pivotally coupled to the mast


24


at a place much more proximate to the location


25


of the mast


24


. This higher position keeps the braces


14


from interfering with play.




As seen in

FIG. 3

, a rod


42


may be placed on one of the braces


16


,


20


. In a preferred embodiment, the rod


42


is placed substantially co-axially with one of the holes


44


on the second end


17


of brace


16


. In order to move the assembly


10


′ to the stowed position, the cable


27


drawn taut. The taut cable


27


and the rod


42


are cooperatively configured so that as the cable


27


is drawn taut, it moves the rod


42


and thereby urges the pair of braces


14


and connector


28


out of the aligned position, and “unlocks” the braces


14


and connector


28


from the aligned position. Then, the cable


27


is drawn taut in order to pivot the mast


24


toward the stowed position.





FIG. 3

provides an exploded view of an embodiment of the linking arrangement. In this embodiment, connector


28


comprises a pair of spaced apart plates


31


with holes


30


that will align with holes


40


in webs


46


that extend from the second ends


18


,


22


of the first


16


and second


20


braces. Each plate


31


and brace


16


,


20


are configured to have a part of a stop


34


, which includes a portion


59


on each plate


31


, and also includes a cooperatively formed portion


55


on a raised area


48


of each brace


16


,


20


. The portion


55


includes a first portion


54


and second portion


52


; similarly, the portion


59


on the connector


28


includes a first portion


62


and second portion


58


as well. As shown, the respective second portions arranged substantially perpendicularly to the first portions


62


,


54


. The second portion


58


of the plate


31


leads to a chamfered end


35


. Similarly, the second portion


52


of each raised area


48


leads to an acutely angled portion


50


. Each respective stop


34


is configured so that portions


55


,


59


engage one another when in the play position, as shown in

FIGS. 2

,


4


, and


6


.




As seen in

FIG. 3

, the holes


30


in the connector


28


define pivot points that align with the pivot points for the connector


28


. Each of the pivot points


17


,


21


,


30


,


30


will be substantially aligned when the apparatus


10


′ is moved to the play position, which is shown in FIG.


2


. As a result, compressive forces induced in the braces (resulting from a hard slam dunk, for example) will be aligned with the pivot points. As a result, there will be no induced moment about either pivot point


30


on connector


28


.




Referring to

FIG. 3

, the webs


46


terminate in an edge


50


bordering a raised portion


48


. As more clearly shown in

FIGS. 4 and 5

, the edge


50


is preferably angled, which allows the chamfered edges


35


of the connector


28


to freely pass in one rotational direction. In contrast, the stops


34


are configured so that the first portion


54


of the raised portion


48


engages the first portion


62


in order to limit further relative rotation in the opposite direction.





FIG. 4

shows a close-up of the connector


28


in the play position. As shown, the stop


34


is configured so that portion


55


on the raised area


48


engages cooperatively formed areas on the connector


28


in order to prevent further rotation past the play position. As shown in

FIG. 5

, however, the edges


50


of raised portion


48


are configured to allow clearance C for chamfered ends


35


. In this way, the pair of braces


14


and the connector


28


are cooperatively configured to allow relative rotation until the braces


16


,


18


are in the play position, but prevent rotation past this point of alignment.




Referring still to

FIG. 4

, the holes


30


define a pair of pivot points on the connector


28


. The connector


28


has a pair of oppositely positioned stops


34


, each stop positioned on the same side of longitudinal axis


32


of connector


28


.




As shown in

FIGS. 3 and 5

, the stops


34


include a first section


62


that is generally parallel to the longitudinal axis


32


; a curved portion


60


that bends, preferably through a 90 degree angle, into a straight portion


58


.




Viewable in

FIGS. 3 and 4

, the raised portion


48


of the web


46


is cooperatively formed so that the straight portion


54


will engage the first portion


62


of the connector


28


when in the play position. The curved, intermediate portion


56


of the raised portion


48


is configured to engage the curved, intermediate portion


60


of the connector


28


in the play position. Additionally, the straight portions


52


,


58


of the raised portion


48


and connector


28


, respectively, engage one another in the play position as well. When these portions engage, they prevent further relative rotation past the play position.




Referring to

FIGS. 3-5

, on the opposite side of longitudinal axis


32


of connector


28


, the connector has chamfered ends


35


. The chamfered ends


35


allow rotational movement of braces


16


,


20


in the direction of the chamfered ends


35


; in contrast, the stops


34


limit rotation of the braces


16


,


20


in the opposite direction. Therefore, the brace


14


is allowed to fully extend when the braces


16


,


20


are aligned, as shown in

FIGS. 3 and 4

, and will lock when the fully aligned position is reached. The stop


34


prevents further rotation once the braces


14


reach the play position, which is shown in FIG.


2


.




In order to assemble the embodiment shown in

FIGS. 3-6

, the plates


31


are aligned and spaced apart. The webs


46


are positioned between the plates


31


so that the holes


44


in the webs


46


align with the holes


30


in the plates


31


. Once aligned, pins


38


are inserted through the holes, and nuts


40


connected thereto.




Note that second end


22


of second brace


20


also has a yoke


36


having holes


44


. In order to properly link the braces


16


,


20


, the holes


44


,


30


are respectively aligned, and pins


38


extend therethrough.





FIGS. 4 and 5

show a comparison between the configuration of the connector


28


when the assembly


10


′ is in the play position (as in

FIG. 4

) and the stowed, folded position (as in FIG.


5


). Typically, the connector


28


and each of the braces will form a right-angle with one another. As shown in

FIG. 5

, however, when the assembly


10


′ is folded to a stowed position, the second ends


18


,


22


will have some tolerance—hereinafter, play Pl—and are able to move with respect to one another and the connector


28


. The edge


50


of the raised portion


48


is angled with respect to the longitudinal axis of the respective brace


16


,


20


. This angled arrangement allows not only for a clearance C, as shown in

FIG. 5

, but also allows the lower edge of the plate


31


to rotate past the right-angle disposition, thereby allowing for play Pl. The shown embodiment allows approximately 20 degrees of play Pl to either side of the right-angle position, for a total of approximately 40 degrees of play.




As seen in

FIG. 5

, the play Pl allows for tolerances in the installation that were not present in the prior art. As discussed above, the prior art system coupled the braces directly to one another rather than to a connector. Therefore, the prior art did not allow the degree of play—in the case of the present invention, about 40 degrees—that the current invention allows. Therefore, minute errors in installment of the prior art system could have resulted in a system which would not fold properly to a stowed position. The play Pl allowed by the current invention, however, gives a tolerance which is able to accommodate minor errors in positioning the braces.




As shown in

FIGS. 3 and 6

, a boss


43


surrounding a hole


44


is formed in webs


46


to align with holes


30


on connector


28


. Additionally, the bosses


43


also provide space between surfaces of the plates


31


and the surface of the respective webs


46


, which minimizes the amount of friction by reducing the surface-to-surface contact. The space created by the boss


43


may even provide a place to insert lubricant, such as oil or graphite.





FIG. 7

shows an exploded view of another embodiment of the linking arrangement. Connector


28


typically has a pair of spaced apart holes


30


. The second end


18


of first brace


16


has a yoke


36


. The arms of the yoke


36


are spaced apart sufficient distance to accommodate connector


28


. As with the embodiment previously shown, the embodiment in

FIG. 7

also has a stop


34


configured to cooperate with a corresponding portion of yoke


36


to prevent further relative rotation of the braces


16


,


18


past the play position.





FIG. 8

shows an exploded view of another embodiment of the linking arrangement. The embodiment shown in

FIG. 8

has many elements that are similar to the elements of previously mentioned embodiments. Elements having similar structure and function have been assigned identical reference numbers. As with the embodiment shown in

FIG. 7

, the second end


18


of the first brace


16


has a yoke


36


. The arms of the yoke.


36


are spaced apart a sufficient distance to accommodate a connector


28


. Each yoke


36


includes a hole


44


, which will define a pivot point. In this embodiment, however, the connector


28


comprises a pair of spaced-apart plates


31


, each having a pair of spaced-apart holes


30


. In order to properly link the braces


16


,


20


, the holes


44


,


30


are respectively aligned, and pins


38


extend therethrough. In order to bias the braces


16


,


20


toward the play position, at least one torsion spring


45


is positioned between the plates


31


. The torsion spring


45


also controls the pivoting of the braces


16


,


20


to make the movement more smooth and even.




As shown in

FIG. 8

, the torsion spring


45


may be positioned around the pins


38


and extend into the second ends


18


,


22


of the braces


16


,


20


. The assembly may also include a spacer


46


positioned between the plates


31


in order to maintain the plates


31


in a spaced-apart relation. The spacer


46


is shown as a cylinder through which the pins


38


extend and about which the torsion spring


45


is wrapped.




In order to assemble the assembly shown in

FIG. 8

, each pin


38


is inserted, at least part of the way, into a hole


44


in each respective yoke. Next, one of the plates


31


is positioned so that the pins


38


pass through the holes


30


in the plates


31


. Then, the spacer


46


and the torsion spring


45


are positioned above the already-placed plate. Preferably, the torsion spring


45


may be placed concentrically around the pins


38


. The torsion spring


45


should be configured to bias the assembly toward the play position. Although a single spring


45


is depicted in

FIG. 8

, it is possible to use a pair of torsion springs that bias the assembly.




After inserting the pin


38


into the first plate


31


and positioning the spring


45


, the second plate


31


is then placed in a spaced apart relation to the other plate


31


so that the pins


38


pass through the respective holes


30


in each of the spaced apart plates


31


. Then, the pin


38


passes through the hole


44


in the other arm of the yoke


36


. A nut


40


may be affixed after the pin


38


passes through the holes


30


,


44


. Also as seen in

FIG. 8

, a spacer


46


may be placed between the plates


31


.




In any embodiment of the invention, the braces


16


,


20


are typically tubular, and the webs


46


or yokes


36


are welded to the second ends


18


,


22


thereof Because the braces can be made from standard tubular stock, they can be specially made to fit any size gymnasium, and the braces


14


can be assembled with a simple weld.




Although the present invention has been described and illustrated in detail, it is to be clearly understood that the same is by way of illustration and example only, and is not to be taken by way of limitation. The spirit and scope of the present invention are to be limited only by the terms of the appended claims.



Claims
  • 1. An overhead sport assembly movable between a play position to a stowed position, the assembly comprising:a mast having a longitudinal axis pivotally coupled to an overhead structure near a first end of the mast; a pair of braces holding the mast in the play position, the pair of braces including a first brace with a first end pivotally coupled to an overhead structure at a pivot point displaced from the first end of the mast, and a second brace with a first end pivotally connected to the mast at a pivot point displaced from the first end of the mast; a connector linking the second ends of the braces; and, the second ends of the braces are pivotally coupled to the connector body at respective pivot points displaced from one another along the connector.
  • 2. The assembly of claim 1, further comprising a stop formed so that, when in the play position, the first brace is allowed to rotate with respect to the connector body only in a first direction of rotation, and the second brace is allowed to rotate with respect to the connector body opposite the first direction.
  • 3. The assembly of claim 2, wherein the stop includes:a first portion on the connector extending from the connector parallel to its longitudinal axis, a second portion on the connector substantially perpendicular its longitudinal axis; and, a raised area on the second end of each brace, each raised area having a first portion substantially parallel to a longitudinal axis of the respective brace, and a second portion substantially perpendicular to the longitudinal axis of the connector; wherein, the respective first and second portions engage one another when in the play position.
  • 4. The assembly of claim 3, wherein the connector further includes an intermediate portion connecting the first and section portions of the connector; and,the raised area further includes an intermediate portion connecting the first and second portions of the raised area; and wherein the respective intermediate portions of the raised area and connector engage one another when in the play position.
  • 5. The assembly of claim 3, wherein the raised area further comprises an angled portion extending from the second portion of the raised area and disposed at an acute angle with respect to the longitudinal axis of the brace in a direction away from the connector, the angled portion configured to provide a clearance allowing the connector to rotate toward the stowed position.
  • 6. The assembly as in claim 5, wherein the connector comprises chamfered ends configured to allow clearance between the angled portion and the chamfered ends as the assembly is moved toward the stowed position.
  • 7. The assembly of claim 1, further comprising a pair of yokes extending from respective opposite ends of the connector, each of the yokes having holes; and,further including holes in the second ends of the braces; and wherein a pin extends through each of the respective holes in the yokes, each pin thereby defining a pivot point.
  • 8. The assembly of claim 1, further comprising an off-center coupling arrangement coupling the mast to the overhead structure at a location displaced from the longitudinal axis of the mast, thereby creating a rotating moment configured to create tensile force in the braces when the assembly is in the play position.
  • 9. The assembly of claim 1, wherein the pivot points are substantially aligned when in the play position.
  • 10. The assembly of claim 1, wherein the connector includes a pair of spaced-apart plates, each plate having a pair of spaced-apart holes;the second ends of each of the first and second braces terminating in a web having a hole, wherein each brace is pivotally coupled to the connector by a pin respective extending through a respective hole to define respective pivot points.
  • 11. The assembly of claim 10, further comprising at least one torsion spring positioned between the spaced apart plates and configured to bias the braces into the play position.
  • 12. The assembly of claim 10, further comprising a spacer positioned between the plates.
  • 13. The assembly as in claim 1, further comprising at least one torsion spring connected to and biasing the connector and at least one brace toward the play position.
  • 14. The assembly as in claim 1, further comprising a backboard mounted adjacent a second end of the mast, and the braces extend behind the backboard.
  • 15. The assembly as in claim 1, further comprising a backboard mounted adjacent a second end of the mast, and the braces extend in front of the backboard.
  • 16. The assembly of claim 1, further comprising a cable and pulley arrangement configured to allow an operator to selectively move the mast between the stowed and play positions.
  • 17. The assembly of claim 16, further comprising a rod extending from one of the first brace, second brace, or connector; wherein, as the cable is pulled in order to pivot the mast toward the stowed position, the cable moves the rod and causes the braces to break from the play position toward the stowed position.
  • 18. The assembly of claim 1, further comprising a yoke with a pair of aligned holes, the yoke extending from respective second ends of each of the first and second braces; and,the connector includes holes; and a pin extends through each of the respectively aligned holes in the connector and yokes, each pin thereby defining a pivot point.
  • 19. An overhead sport assembly movable between a play position and a stowed position, the assembly comprising:at least one mast pivotally coupled to an overhead structure near a first end of the mast; a pair of linked braces positioned to hold the mast in the play position, the pair of braces having a first end pivotally connected to the mast at a location displaced from the first end of the mast, and a second end pivotally coupled at a location distal from the mast; a connector linking the braces by pivotally coupling to the braces at locations displaced from one another along a longitudinal axis of the connector; wherein, as the overhead sport assembly moves from the stowed position to the play position, the braces move from a folded position to the play position.
  • 20. The assembly as in claim 19, wherein the connector further includes a stopping means which allows relative rotation between the pair of braces while the braces move from the stowed position to the play position, but limits relative rotation past the play position.
  • 21. The assembly of claim 20, wherein the connector further includes an intermediate portion connecting the first and section portions of the connector; and,the raised area farther includes an intermediate portion connecting the first and second portions of the raised area; and wherein the respective intermediate portions of the raised area and connector engage one another when in the play position.
  • 22. The assembly of claim 20, wherein the raised area further comprises an angled portion extending from the second section and disposed at an acute angle with respect to the longitudinal axis of the brace in a direction away from the connector, the angled portion configured to provide a clearance allowing the connector to rotate toward the stowed position.
  • 23. The assembly as in claim 22, wherein the connector comprises chamfered ends configured to allow clearance between the angled portion and the chamfered ends as the assembly is moved toward the stowed position.
  • 24. The assembly as in claim 22, further including an intermediate portion connecting the first and second portions of the raised area; wherein, the respective intermediate portions of the raised area and the connector engage one another when in the play position.
  • 25. The assembly as in claim 19, wherein the pivot points substantially align in the play position.
  • 26. The assembly as in claim 19, wherein the means for moving the overhead assembly comprises a cable and pulley arrangement configured to allow an operator to selectively move the mast between the play and stowed positions.
  • 27. The assembly as in claim 19, further comprising a rod extending from the pair of linked braces, cable and rod cooperatively configured so that the cable engages the rod and urges the braces to break from the play position.
  • 28. An overhead sport assembly, comprising;a mast pivotally coupled to an overhead structure; a means for pivoting the mast between a stowed position and a play position; a means for holding the mast in the play position, the holding means including a pair of braces, the first brace pivotally coupled to the overhead structure at a first pivot point and the second brace pivotally connected to the mast at a second pivot point, and a connecting means linking the braces at respective pivot points displaced from one another; and, a stopping means for preventing the braces from unfolding from the stowed position past the play position.
  • 29. The overhead sport assembly of claim 28, further comprising a means for breaking the braces from the play position and urging the beams toward the stowed position.
  • 30. The overhead sport assembly of claim 28, wherein the connecting means includes a pair of spaced-apart plates having holes, and the braces have webs with holes, the webs extending from ends of the braces; wherein, the braces are pivotally coupled by inserting a pin through the respective aligned holes in the webs and plates in order to define pivot points.
  • 31. The overhead sport assembly of claim 30, further comprising at least one torsion spring positioned between the spaced-apart plates and configured to bias the braces into the play position.
  • 32. The assembly of claim 30, further comprising a spacer positioned between the plates.
  • 33. The overhead sport assembly of claim 30, wherein the pivot points are substantially collinear when the mast is in the play position.
  • 34. The overhead sport assembly of claim 28, wherein the connecting means includes a connector configured to receive respective ends of the first and second braces at spaced-apart pivot points.
  • 35. The overhead sport assembly of claim 28, further comprising an off-center coupling arrangement configured to pivot the mast about a point displaced from its central longitudinal axis, thereby inducing a moment which creates a tensile force in the braces.
  • 36. An overhead sport assembly as in claim 28, wherein the pivot points substantially align in the play position.
  • 37. An overhead sport assembly movable between a play position and a stowed position, the assembly comprising:a mast pivotally coupled to an overhead structure near a first end of the mast; a pair of braces for supporting and holding the mast in the play position, the pair of braces including a first brace with a first end pivotally coupled to an overhead structure at a pivot point displaced from the first end of the mast, and a second brace with a first end pivotally connected to the mast at a pivot point displaced from the first end of the mast; the second ends of the braces being pivotally coupled to a connector at respective pivot points displaced from one another along the connector; the braces and the connector being cooperatively configured to allow the braces to pivot from the stowed position to the play position, and further configured to prevent further rotation past the play position; wherein the pivot points are substantially aligned when in the play position.
US Referenced Citations (9)
Number Name Date Kind
1778173 Steele Oct 1930 A
1919494 Albach Jul 1933 A
2961236 Murphy Nov 1960 A
3598407 Sorensen Aug 1971 A
4323059 Rambert et al. Apr 1982 A
4437480 Husa Mar 1984 A
4710049 Chang Dec 1987 A
5038765 Young et al. Aug 1991 A
5639174 Gonska Jun 1997 A
Non-Patent Literature Citations (5)
Entry
AALCO Catalog (1998) pp. 1-16.
Jaypro Sports Equipment Catalog (1997) pp. 1-19.
Jaypro Sports Equipment Brochure (1997), eight unnumbered pages.
Draper Catalog, pp. 1-23.
Court Source Sports Equipment Catalog (1996) pp. 22-25.