Patent Abstract:
An automated torsion driven sports goal practice backstop which appends to any size of sports goal and may remain in place, if desired, at the conclusion of practice and during games. The sports goal practice backstop utilizes a torsioning system and flexible net mechanism in order to provide for easy installation and subsequent tension thereof. During practice, the sports goal backstop of the present invention provides a suitable backstop to stop most balls from traveling beyond the goal. At the conclusion of practice, the sports goal backstop of the present invention is mechanically foldable via automation of rotating handles and thus, the instant system need not be removed at the conclusion of practice. Rather, the sports goal backstop of the present invention may remain in position, out of sight, in its folded configuration during a game without interfering with normal play.

Full Description:
FIELD OF THE INVENTION 
     The present invention relates generally to sporting goods, namely sports goal practice backstops for sports such as, but not limited to, lacrosse, soccer, filed hockey and hockey, including improvements to said sports goals including automated torsion driven folding mechanisms. 
     BACKGROUND OF INVENTION 
     A sports goal backstop is often utilized during practice sessions to aid in retaining the ball or playing object within the confines of the playing field and also in retrieval of shots that miss the desired mark. The instant backstop id design to facilitate in the prevention of an errant shot from traveling beyond the goal and thus eliminates the need for the players to give chase, taking time away from the practice session. Further, the sports goal backstop prevents the loss of a ball due to an errant shot. The sports goal backstop keeps the ball in the general vicinity of the practice session. In particular, the instant backstop may be useful during practices sessions for sports such as lacrosse and soccer. 
     Commencing at the youth level and carrying far beyond to the polished skills of professional athletes in such sports as lacrosse, hockey and soccer, players are coached to shoot for the corners and side gaps of the goal as openings exist therein and also as the goalie is less capable of protecting these areas. Therefore, honing such skills affords the player the highest probability of scoring a goal. In some sports, lacrosse in particular, players are also coached to take what&#39;s known as “bounce shots.” This tactic occurs when a player shoots the ball to a spot in the crease area, in front of the goal and the ball bounces from the ground into the upper part of the goal. Due to the blind nature of the shot, when taken in conjunction with the level of timing required by a goaltender to defend such shot, defense is normally rendered nearly impossible when placement is correct. 
     The selection of shots discussed above, while vexing to a goaltender in theory, rarely find the proper location in practice and thus, during training when the player actually attempts to execute such intricate shots, the object utilized, be it ball, puck, etc., rarely hits the intended target or spot, due mainly to the lack of skill and accuracy required. Thus, depending on the location of the field or rink, and the inherent proximity to wooded areas, houses and/or automobiles, when shots are missed, the ball may be lost and damage may additionally be incurred by surrounding houses, automobiles and even people or animals. 
     Ergo, as for example lacrosse balls can cost as much as $2.00, such a level loss on a regular basis may render practicing such intricate shots prohibitive from a budgetary stand point, thus impeding creative playmaking activity. Furthermore, as innocent bystanders or personal property may withstand injury or damage, taking chances will inherently be discouraged and as such, the creativity of the players may be stifled. 
     Moreover, possibly the most poignant result involves the loss of valuable practice time and efficiency incurred in retrieving these wayward balls. And obviously such a disjunctive, interrupted practice situation can become frustrating, discouraging and cause players, especially younger players, to quickly loose interest and/or practice his or her shooting drills less. 
     Existing backstop designs in the current state of the art today require extensive set up and maintenance. Currently utilized is a “fence” like design that is simply a long metal tubular framed net that installs to the ground and is held up by flimsy foot-like base members and stabilizing cables at each end. This type of design is normal constructed behind the goal and is likely permanently secured due to the difficulty in set up and handling. Thus, this “fence” type design offers no backstop support for “bounce shots” as described above. 
     Another design within the current state of the art comprises a “cage” type design, similar to a golf practice apparatus. This invention is designed to fully encase the entire goal, but possesses very limited backstop protection from side to side and above the goal standpoints. Additionally, the cage-like design is extremely restrictive when trying to practice shooting on net at an angle. 
     One common factor evident in all of the above-discussed designs is a tendency toward apparatuses, which are esthetically unpleasing when located in a user&#39;s yard or on a sports field. Further exacerbating that aesthetics problem, many of these systems can not easily be stored away at the end of practice and thus must then be left around, which renders these designs an eyesore and also creates the opportunity for the systems to be damaged or stolen. 
     In many prior designs, a sports goal backstop involves a backstop, which is statically attached to a practice goal, which is used in lieu of the goal. In such a formation, the sports goal backstop/practice goal unit must be transported to the field, set up for practice, and then transported from the field. This procedure is not only cumbersome but time consuming as well. 
     In other instances, the sports goal backstop is a removable backstop that can be used along with the goal. In this instance, the sports goal backstop must still be transported to the field, set up for practice, and then transported from the field. As a result, this procedure is cumbersome and time consuming as well. Illustrated in U.S. Patent Publication No. 2007-0158913-A1 to Rigoli, non-automated sports goal backstops designed to support practice sessions yet need not be removed from the field in order to ready the field for game play, but can be easily removed if needed. 
     What is needed is a design of sports goal practice backstop which attaches to a goal and which does not have to be removed at the conclusion of practice, but which may be unobtrusively folded out of sight without interfering with the goal. 
     Moreover, what is needed is a system which comprises a sports goal apparatus and practice apparatus yielding a unitary configuration, wherein the practice apparatus incorporates fully retractable capabilities. Further, what is needed is an automated system which is also easily and quickly dissembled in the case of needed removal from the play. Finally, what is need is an automated system which can be transported to and from the practice field in a container which a sole individual can transport. 
     SUMMARY OF THE INVENTION 
     The instant invention, as illustrated herein, is clearly not anticipated, rendered obvious, or even present in any of the prior art mechanisms, either alone or in any combination thereof. An automated torsion driven sports goal practice backstop, designed to compensate for the aforementioned drawbacks and limitations would afford significant improvement to numerous useful applications. Thus the several embodiments of the instant invention are illustrated herein. 
     The present invention reveals the next generation in sports goal practice backstops. Unlike prior practice backstops, the instant invention discloses an automated design featuring retractable actuation handles which can be fully integrated to the profile of an existing goal, thus allowing the backstop to remain in place during game time if desired. 
     In the present invention, the sports goal backstop attaches to any goal and may remain in place, if desired, at the conclusion of practice and during games. During practice, the sports goal backstop of the present invention provides a suitable backstop to stop most balls from traveling beyond the goal. Further, as the instant backstop also features easy attachment and removal, the system may be readily broken down and removed for game time if desired. At the conclusion of practice, the sports goal backstop of the present invention is foldable such that it need not be removed at the conclusion of practice. Significantly, the sports goal backstop of the present invention may remain in position, out of sight, in its folded configuration during a game with minimal to no interference with normal play. 
     Unlike the existing designs on the market today which are large, unsightly and cumbersome to employ and maintain, the instant innovative Rigoli Design™ or RD™ backstop design is an integral part of the goal itself. The system weighs very little, fits goals of all pipe diameters and goal widths, is easy to set up and install and fits with a 64 inch×17 inch×7 inch box or in a travel bag or other duffle bag mechanism. Additionally, the instant system provides coverage only around the area of the goal that is functional, the front face of the entire goal and also allows the player to stow the RD™ backstop netting behind the goal in a non-functional area so that the goal can be practiced on without the interference of a backstop. The benefit of this design is that the player can easily deploy the back stop for practice and then quickly stow it away for game like shooting and scrimmages. 
     After the RD™ backstop system has been installed it requires only one person to deploy and stow the system. The system operates from either side of the goal and is a simple cam operated lever that is assisted by torsion springs for balance and ease of operation. The operator simply pulls one of the two handles to release it from the stored position, rotates it to engage the cam and lifts the backstop into position, the operator then pushes the handle back into the stored position, pulls the side nets to deploy the outer net poles and the RD™ backstop is ready to use. Repeat this procedure in reverse to stow away the backstop. The backstop remains stable during deployment due to the counterbalance weight system installed on the rear section of the goal. 
     The RD™ backstop design offers shot protection from all angles including the top due to its innovative forward angular design on all three sides. The coverage area is extremely generous on all three sides as well. The top angle design allows the player to take bounce shots with a high probability of stopping it in the event that it misses the intended target. The corner and side gap shorts are supported by the forward angular side design. If the player wishes to practice sharp angle shots from either side, the player simply folds the shooting side back onto the goal, leaving the rest of the apparatus in tact and functioning, thus allowing the player to shoot without interference from the backstop on that given side. 
     It is a salient objective of the present invention to provide a sports goal backstop to support practice sessions, which can be installed and removed with ease and yet operated via of an automated system. It is a further object of the present invention to provide a sports goal practice backstop that need not be removed from the field in order to ready the field for game play; however, the sports goal practice backstop can be easily removed if needed. 
     It is a further objective of the present invention to provide a sports goal practice backstop that securely attaches to a goal and is foldable such that it is out of sight and does not obstruct normal play. It is an even further object of the instant invention to provide an automated system which can be transported to and from the practice field in a single container and which can be transported by a sole individual. 
     It is a further objective of the instant invention to provide a practice net system that can be cleanly and quickly removed from a standard net apparatus, by utilizing slidably attached blocks which anchor the system and are joined by a common shaft which employs quick disconnect mechanisms as opposing sides. 
     Finally, it is an object of the present invention to provide an automated sports goal practice backstop that securely attaches to a goal and is foldable such that it is out of sight and does not obstruct normal play. 
     Accordingly, an improved automated torsion driven sports goal practice backstop and accompanying enhancements its component elements are herein described, which achieve these objectives, plus other advantages and enhancements. These improvements to the art will be apparent from the following description of the invention when considered in conjunction with the accompanying drawings wherein there has thus been outlined, rather broadly, the more important features of the automated torsion driven sports goal practice backstop in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. 
     There are additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto. In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of the description and should not be regarded as limiting. 
     These together with other objects of the invention, along with the various features of novelty, which characterize the invention, are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention. Other features and advantages of the present invention will become apparent from the following description of the preferred embodiment(s), taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the invention. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
         FIG. 1  is an isometric front view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 2  is an isometric rear view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 3  is a front view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 4  is a right side view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 5  is a rear view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 6  is a top plan view of the automated torsion driven sports goal practice backstop of the instant invention, attached to an existing goal and fully raised and torsioned; 
         FIG. 7A  is a front section view of the right support structure attached to the right side of an existing goal via the clip assembly with corresponding cinch strap; 
         FIG. 7B  is a rear isometric section view of the right support structure attached to the right side of an existing goal via the clip assembly with corresponding cinch strap; 
         FIG. 7C  is a rear isometric section view of the left pivot block in attached to the rear of an existing sports goal and in communication with the torsioning system, further illustrating communication with one of the plurality of support rods; 
         FIG. 7D  is a front isometric section view of the left pivot block in attached to the rear of an existing sports goal and in communication with the torsioning system, further illustrating the pivot block and hanger assemblies; 
         FIG. 7E  is a rear isometric section view of the left pivot block in attached to the rear of an existing sports goal and in communication with the torsioning system, further illustrating the intermediate torque shaft spacer; 
         FIG. 8A  is a explode view of the assembly of a pivot block, detached from the system; 
         FIG. 8B  is an isometric view drawing of a pivot block assembled fully assembled; 
         FIG. 8C  illustrates a pivot block with the upper section slidably removed from the lower assembly; 
         FIG. 9A  is a isometric view of a support structure element, detached from the system; 
         FIG. 9B  is an exploded view of a support structure element, illustrating the internal elements including the clip assembly and the cinch strap; 
         FIG. 10A  is a isometric view of an actuation handle, detached from the system; 
         FIG. 10B  is an exploded view of an actuation handle, illustrating the internal elements; 
         FIG. 11A  is a isometric view of a torsioning assembly, detached from the system; 
         FIG. 11B  is an exploded view of an actuation handle, illustrating the internal elements; 
         FIG. 12A  is a isometric view of a support rod assembly, detached from the system; 
         FIG. 12B  is an exploded view of support rod assembly, illustrating the internal elements; 
         FIG. 13A  is a isometric view of an extruded aluminum hanger assembly with a cinch strap illustrated, detached from the system; 
         FIG. 13B  is a isometric exploded view of an extruded aluminum hanger assembly with a cinch strap illustrated, detached from the system; 
         FIG. 14  is an isometric view of the overall torsion driven support rod activation system or overall hanger assembly; 
         FIG. 15A  is a rear isometric view of one embodiment of the counter balance bladder; 
         FIG. 15B  is top isometric view of one embodiment of the counter balance bladder within the context of location on an existing goal; 
         FIG. 15C  is a bottom isometric view of one embodiment of the counter balance bladder; 
         FIG. 16A  is a top view of the counter balance bladder embodiment including retaining platform; 
         FIG. 16B  is a rear view of the counter balance bladder embodiment including retaining platform; 
         FIG. 16C  is a side view of the counter balance bladder embodiment including retaining platform; 
         FIG. 16D  is a pair of side isometric views of the counter balance bladder embodiment including retaining platform; 
         FIG. 17  is a rear isometric view of the entire system with the backstop net removed for clarity and the flexible pultrusion rods retracted and resting against the existing sports goal; 
         FIG. 17A  is an exploded view of an entire hanger system, free of attachment to a sports goal; 
         FIG. 18A  is an isometric view of an alternate extruded aluminum ratcheting hangar assembly comprising mechanical clamping; 
         FIG. 18B  is an exploded view of an alternate extruded aluminum ratcheting hangar assembly comprising mechanical clamping; 
         FIG. 19A  is an isometric exploded view of one embodiment of intermediary shaft quick release mechanisms illustrated within the entire system; 
         FIG. 19B  is an isometric exploded view of an individual of one embodiment of an intermediary shaft quick release mechanisms; 
         FIG. 20  is an isometric partially exploded view of the entire system not attached to a goal; 
         FIG. 21  is an isometric view of the entire system as illustrated attached to a soccer goal; 
         FIG. 22  is an exploded view of the entire system as illustrated attached to a hockey goal; 
         FIG. 23  is an exploded view of the entire system as illustrated attached to a field hockey goal; and, 
         FIG. 24  illustrates the instant apparatus stowed in a tote bag with the netting removed. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     The detailed description set forth below in connection with the appended drawings is intended as a description of presently-preferred embodiments of the invention and does not represent the only forms in which the present invention may be constructed and/or utilized. The description sets forth the functions and the sequence of steps for constructing and operating the invention in connection with the illustrated embodiments. However, it is to be understood that the same or equivalent functions and sequences may be accomplished by different embodiments that are also intended to be encompassed within the spirit and scope of the invention, such as flywheel systems with magnetic bearings used in a variety of applications. 
     Referring now to the figures to better illustrate the present invention, in  FIGS. 1-6 , there is shown one embodiment of a sports goal practice backstop  10 , as configured to attach to a lacrosse goal.  FIGS. 1-20  illustrate the sports goal practice backstop  10  in a preferred embodiment as attached to a lacrosse net. In one embodiment, the invention may comprise a sports goal practice backstop  10  for removable attachment to a sports goal  11  and further comprising a right support structure  20  and a left support structure  21 , wherein said right  20  and left support structures  21  are removably attached by a right  22  and a left attachment mechanism  23  to secure the respective support structures in place. 
       FIGS. 7A-C  illustrate that the right and left support structure attachment mechanism may further comprising a right  24  and left adjustable clip mechanism  25  and a right  26  and a left adjustable clip mechanism cinch strap  27 . The invention may further disclose a torsion driven support rod activation system  30 , or hanger assembly  30 , comprising a right  31  and left actuation handle assembly  32  in transferred communication with said right  20  and left support structure  21 . The torsion driven support rod activation system may comprise an attachment mechanism comprising a right  33  and left adjustable hanger retaining mechanism  34  including a first  35  and a second adjustable hanger cinch strap mechanism  36 . 
       FIGS. 8A-13  further illustrate the numerous mechanisms involved with the overall torsion driven support rod activation system  30 , or hanger assembly  30 . Additionally illustrated, the right  31  and left actuation handle assembly  32  are in communication with a right  40  and left torque shaft assembly  41 . The right  40  and left torque shaft assembly  41  are thus in transferred communication with the right and left actuation handle assembly and in transferred communication with said right and left support structure. Furthermore, the invention reveals a right  50  and left pivot block assembly  51 , in communication with right  40  and left torque shaft assembly  41  and thus in transferred communication with said right  47  and left actuation handle assembly  48 . 
     The left and right torsion driven support rod activation system  30  or overall hanger assembly  30  are joined by at least one torque shaft spacer or intermediate linking torque shaft mechanism  60 . In a further embodiment, the left and right torsion driven support rod activation system  30  or overall hanger assembly  30  may be joined by two or more torque shaft spacer or intermediate linking torque shaft mechanisms  60  or even an adjustable type spacer in order to accommodate differing sizes of existing goals. 
     Also, disclosed is a removably attachable backstop net  80  and a plurality of right  70  and left  71  support or flexible pultrusion rods comprising a multi-positional, retractable construction, in communication with said right  50  and left pivot block assemblies  51  and possessing means for attachment of said removably attachable backstop net thereto. The pivot blocks may be disposed with female threads in order to mate with male threads provided to the support or pultrusion rods. Further the removably attachable backstop net may comprise a multiplicity of sections including the two outer sections  81 , two midsections  82  and an inner section  83 . The two midsections and said inner section are disposed in a non-perpendicular manner to an upper support of a goal. The two midsections and said inner section are disposed at an acute angle to said upper support of a goal at a thirty degree angle. The removably attachable backstop net may be attached to the flexible pultrusion rods by slipping the net over the respective rod and being secured by a strap attached to the net. 
       FIGS. 14A-B  illustrate a counter balance bladder  91  comprising a fluid storage compartment. The sports goal practice backstop counter balance bladder  91  is removably attachable to the lower portion of an existing goal  11 , mounting on the upper portions of rearward goal support  12 . Additionally, an alternative counter balance bladder  92  embodiment, which includes a retaining platform is illustrated in  FIGS. 16A-D . As seen, this alternative embodiment counter balance bladder  92  may be disposed at the rear portion of the existing net in order to keep the net from tipping forward. The bladder comprises a filling aperture, wherein the fluid required in order to counter-balance the existing net may be entered and may be disposed horizontally within the retaining platform. The bladder, and for that matter the retaining platform  93 , may be comprised of a myriad of materials including but not limited to flexible and non-resilient polymers, composites and metals. 
     The left and right pivot blocks are in rotatable communication with the right and left torque shaft assembly and the right and left actuation handle assembly. Upon attachment of removably attachable backstop net to the plurality of support rods, rotation of actuation handle assemblies in a rearward direction that triggers the torsion application mechanism, wherein, the plurality of support rods are raised and backstop net is tensioned. 
     The sports goal practice backstop upon attachment of the removably attachable backstop net to the plurality of support rods and the rotation of the actuation handle assemblies in a forward direction triggers the torsion application mechanism and the plurality of support rods are lowered and the backstop net is detensioned. Further, in one embodiment, the right and left plurality of support or protrusion rods may comprise of two right and two left support or protrusion rods. The sports goal practice backstop further comprising a set of interchangeable shim mechanisms, in order to render the invention adaptable to any size of existing sports goal. 
       FIG. 15A  illustrates a rear isometric view of one embodiment of the counter balance bladder.  FIG. 15B  illustrates a top isometric view of one embodiment of the counter balance bladder within the context of location on an existing goal.  FIG. 15C  illustrates a bottom isometric view of one embodiment of the counter balance bladder.  FIG. 16A  illustrates a top view of the counter balance bladder embodiment including retaining platform.  FIG. 16B  illustrates a rear view of the counter balance bladder embodiment including retaining platform.  FIG. 16C  illustrates a side view of the counter balance bladder embodiment including retaining platform.  FIG. 16D  illustrates a pair of side isometric views of the counter balance bladder embodiment including retaining platform. 
     In addition, the practice backstop right  40  and left torque shaft assemblies  41  may comprise, a shaft member  42 , a retaining member  43 , a washer member  44 , a tensioning mechanism member  45 , and, a fastening mechanism  46 . The right and left tensioning mechanism  45  members may comprise a spring mechanism of metallic, composite or any other suitable material. 
     Moreover, the right  50  and left pivot block assemblies  51  may comprise, a shaft housing apparatus  52   a  comprising a first  52   b  and a second shaft receiving area  52   c  disposed to receive said torque shaft assembly and actuation handle assembly; a removably attachable locking pin mechanism  52   d . The right  50  and left pivot block assemblies  51  may further comprise a support rod or pultrusion rod retaining housing  53   a  or sliding block  53   a  in sliding communication with said shaft housing apparatus  52   a , disposed to receive and maneuver said plurality of support rods upon actuation of said shaft housing apparatus and further comprising an aperture  53   b  disposed to removably receive said removably attachable locking pin mechanism in communication with said shaft housing apparatus. 
     Further, the support rod or pultrusion rod retaining housing  53   a  may contain a static housing retaining mechanism  53   b , a forward  53   c  and a rear rotatable support rod receiving hub  53   d , a forward  53   e  and a rear washer member  53   f , a forward  53   g  and a rear gasket member  53   h  and an aperture  53   i  disposed to removably receive said locking pin mechanism  52   d . Additionally the retaining housing  53   a  may comprise a forward  53   j  and rear fastening mechanism  53   k ; and, wherein upon rotation of right and left actuation handle, said shaft housing apparatus transfers rotation to said forward  53   c  and rear rotatable support rod receiving hubs  53   d  in order to actuate said support rods. 
     In a further embodiment, the left hanger assembly comprising, a left spring loaded actuation lever, a pair of left net retainer rods, a left pivot block disposed to retain plurality of left net retainer rods wherein pivot block extends and retracts said net retainer rods relative to existing sports goal, a left torque shaft assembly, a left support structure, a left support hanger. 
     Further the right hanger assembly comprises, a right spring loaded actuation lever, a plurality of right net retainer rods, a right pivot block disposed to retain the plurality of right net retainer rods wherein the pivot block extends and retracts the net retainer rods relative to the existing sports goal, a right torque shaft assembly, a right support structure, a right support hanger, a removably attachable net mechanism in communication with the plurality of right and left net retainer rods, at least one torque shaft mechanism in communication with the right and left hanger assemblies wherein the application of a rotational force upon the right and left spring loaded actuation lever tensions the torque shaft mechanism, rotates the left and right pivot block, extends the plurality of left and right net retainer rods and tensions to the removably attachable net mechanism. 
     In one embodiment, the instant invention provides a practice net system that can be cleanly and quickly removed from a standard net apparatus, by utilizing two identical hangar assemblies comprising slidably attached blocks, which anchor the system and are joined by a common shaft. As illustrated in  FIGS. 19A , B, this common shaft employs quick disconnect mechanisms  61 , disposed at opposing sides. Thus, the entire apparatus, with nets still attached may be removed as a unit by way of removal of the sliding blocks. The entire apparatus may then be folded and stowed, with the nets attached, or unattached, in a duffel bag or box, as seen in  FIG. 24 . 
     These quick disconnect mechanisms  61  as installed within the intermediate linking torque shaft mechanism  60 , may include such mechanisms as retractable locking pins, swage type mechanisms, sliding fitting or any other type of coupling mechanism know in the art. The respective hanger shafts will be fitted with the associated holes, swage receivers, sliding fittings, etc., in order to properly align with the shaft. 
     Further, the sliding pivot block assemblies  51  may thus be removed from the respective shaft housing apparatuses, the intermediate linking torque shaft mechanism  60  may be released via the quick disconnect mechanisms  61 , and the entire system, with the netting still attached, can be folded and packed into a box quickly and efficiently for further use. 
       FIG. 17  illustrates is a rear isometric view of the entire system with the backstop net removed and the flexible pultrusion rods retracted and resting again the existing sports goal.  FIG. 17A  is an assembly drawing of an entire hanger assembly  30 , free of attachment to a sports goal.  FIG. 18A  is an isometric view of an alternate embodiment of extruded aluminum ratcheting hanger assembly comprising a mechanical clamping system which can be removed quickly and easily.  FIG. 18B  is an exploded view of an alternate extruded aluminum hanger mechanism comprising mechanical clamping.  FIG. 18B  illustrates that the alternate extruded aluminum ratcheting hanger mechanism  100  may exist as a clamping system  100  comprising: a base member  101 , a clamping mechanism  102  comprising: a lever arm  103 , a pushpad  104  and a contact pad  105 . 
     The clamping system further comprises a tensioning assembly  106  in communication with the clamping mechanism and the tensioning assembly may comprise a spring member  107  in communication with the base member  101  and the lever arm  103 , a pair of opposed system braces  108  in communication with the base member  101 , a shaft member  109  disposed between the pair of opposed system braces  108  and in communication with the lever arm  103  and said spring member  107 ; a locking mechanism  110 . 
     In operation, depression of the pushpad lowers the lever arm against the spring and raises the contact pad against a member to be clamped, developing a tension component upon said member to be clamped and wherein said locking mechanism maintains tension upon, said member to be clamped. The clamping mechanism illustrated here may also be utilized for further applications in addition to the securing the sports goal practice backstop shown herein. 
       FIG. 19A  is an isometric view of one embodiment of intermediary shaft quick release mechanisms illustrated within the entire system.  FIG. 19B  is an isometric view of an individual of one embodiment of an intermediary shaft quick release mechanisms.  FIG. 20  is a rear isometric exploded view of the entire system not attached to a net.  FIG. 21  is a rear isometric exploded view of the entire system as illustrated attached to a soccer net.  FIG. 22  is a rear isometric exploded view of the entire system as illustrated attached to a hockey net.  FIG. 23  is a rear isometric exploded view of the entire system as illustrated attached to a field hockey net. 
     The following instructions illustrate properly assembly, operation, breakdown and stowage of the one embodiment of the system described herein, this being a system without the removable sliding blocks, as follows: 
     Setup &amp; Installation 
     Locate the Counter Balance Bladder. Remove the spout caps and fill it with water. Secure the spout caps when filled. 
     Place the Counter Balance Bladder on the rear of the goal. Positioning it so the unfilled areas match the goal framework. 
     Lift the rear of the goal slightly to secure the bladder to the goal using the hook and loop fastening straps. 
     Locate the right and left Support Structure Assemblies and place them on a flat surface behind the net. 
     Locate the Goal Spacer Tube and install it onto the right and left Support Structure Assemblies at the end shafts. 
     Pull up the spring-loaded plungers, sliding it over the end shaft, lining up the holes in the shafts and tubes and release the spring-loaded plunger. 
     Rotate and slide the Center Spacer until the plunger aligns with the holes in the shafts and retracts to secure the Center Spacer and Support Structures. 
     Loosen the four Thumb Screws (2 per side, one top, one bottom) on the Hangers. 
     Rotate the Hangers upward approximately 70 degrees (slightly less than vertical) until the Hanger can no longer rotate further. 
     Tighten the four Thumb Screws (2 per side, one top, one bottom) on the Hangers. 
     Remove the Cinch Straps from their respective retainers (4 total). 
     Select the correct diameter Shim that closely matches the diameter of the goal tube that you have by placing them against the goal. 
     Depending on what diameter tube you have on your goal, snap the Hanger Diameter Shims onto the Hangers in the following order.
         a. 1.75″ TUBE into either side, making certain that the Shim snaps into place.   b. 1.50″ TUBE into the opposite side, making certain that the Shim snaps into place.       

     With a person at either end of the Backstop System, lift the assembly and place the Hangers onto the top horizontal tube of the goal. 
     Center and align the Support Structures to the vertical tubes of the goal. 
     Secure the Hangers by wrapping the Cinch Strap around the goal tube and into their retainers. Pull the Cinch strap tight and secure by rotating the clasp. 
     Repeat the same for the side Cinch Straps. 
     Locate the Net in the box and lay it out flat on the ground behind the goal. 
     Unfold the net behind the goal. 
     Locate the Slider Blocks (attached to the rods) and install them to the net. 
     Lift the Net assembly onto the Backstop System, inserting the Slider Blocks into the Pivot Blocks. Slide them full into position until the spring-loaded plunger engages the Slider Blocks. 
     Operation 
     Deployment:
         Pull the either of the two Handles out, rotating them to the front of the goal while keeping outward tension on the handles. When the handles engage the internal cams, keep outward tension on them to keep the cams engaged.   Rotate the handles down and rearward to deploy the sports backstop.   Flip the side nets outward and allow them to fall to the side of the goal.   Release the handles and push them inward to disengage the cams.   Rotate the handles to align them to the Support Structures using the rubber alignment slugs to help the handles conform to the Support Structures.       

     Stowage:
         Pull either of the two Handles out, rotating them to the rear of the goal while keeping outward tension on the handles. When the handles engage the internal cams, keep outward tension on them to keep the cams engaged.   Flip the side nets inward and allow them to fall to the middle rear of the goal.   Rotate the handles down and forward to stow the sports backstop.   Fold the Pultrusion Rods inward so the arms and Backstop net are within the boundary of the goal.   Release the handles and push them inward to disengage the cams.   Rotate the handles to align them to the Support Structures using the rubber alignment slugs to help the handles conform to the Support Structures.       

     Therefore, as illustrated herein the sports goal practice backstop of the present invention may be used in conjunction with a multitude typical sports which utilize goals such as soccer, street hockey, ice hockey, field hockey. Further, the backstop may be utilized when practicing sports such as golf. 
     While several variations of the present invention have been illustrated by way of example in preferred or particular embodiments, it is apparent that further embodiments could be developed within the spirit and scope of the present invention, or the inventive concept thereof. However, it is to be expressly understood that such modifications and adaptations are within the spirit and scope of the present invention, and are inclusive, but not limited to the following appended claims as set forth.

Technology Classification (CPC): 0