Patent Application
20200238152
Embodiments of the invention relate to a high-tension safety net applied to a trampoline. Embodiments of the invention further relate to a trampoline comprising such a high-tension safety net and to a method of erecting the high-tension safety net in a trampoline.
The following description includes information that may be useful in understanding embodiments of the invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
The modern trampoline era began in the mid-1930s, see, e.g., U.S. Pat. No. 2,370,990 by George Nissen who with Larry Griswold was instrumental in developing the modern trampoline. Even though trampolines were initially developed for competitive or professional purposes, trampolines for recreational use are nowadays popular home entertainment accessories.
A trampoline comprises a flexible mat, a frame, and at least one resilient member. The flexible mat is typically circular, oval, square, rectangular, or stadium (e.g., rectangular with curved corners). The flexible mat may comprise a cloth or net-shaped structure. It may be made of a polymeric material, such as polypropylene. The frame, conventionally made of metal, encompasses the flexible mat and typically has substantially the same shape as the flexible mat. A circular or oval mat is typically surrounded by a circular or oval frame having a larger diameter than the flexible mat, and a square, rectangular, or stadium mat is typically surrounded by a substantially square, rectangular, or stadium frame, where stadium represents an approximately rectangular shape with rounded-off edges.
The flexible mat typically comprises a plurality of attachments distributed along the mat's edge. The attachments are adapted to receive one or more resilient members for retaining the flexible mat under tension, creating a suspension system. The resilient members may comprise a plurality of springs (e.g. helical springs) that connect the edge of the flexible mat to the frame, thereby tensioning the flexible mat. When a person is using the flexible mat, i.e. jumping on it, the springs will extend in length and thereafter strive to return to their resting length. The spring may be attached to a loop, such as a D-shaped or triangle-shaped ring, comprised in the flexible mat by means of a hook that attaches to the spring. Thus, the system of loops and D-rings comprise the plurality of attachments for the flexible mat to receive the resilient members.
In some trampoline embodiments, the resilient member may comprise an elastic cord. Normally, the elastic cord is long enough to go back and forth between the edge of the flexible mat and the frame several times. Each portion connecting the flexible mat to the frame then forms a segment, which correspond to a spring in the above example. The elastic cord may be so long, that only one elastic cord is utilized for the whole mat, or a plurality of elastic cords may be used.
The flexible mat is conventionally surrounded by an edge pad, which is adapted to at least partly cover the at least one resilient member and/or the frame. The edge pad helps prevent users from stepping or landing between the resilient members, e.g. when climbing onto the flexible mat. The edge pad may also be arranged to cover the frame, thereby reducing a possible impact with the frame in case of stepping or landing on the frame. The edge pad is often made as a number of segments, the shapes of which are adapted to the frame and the flexible mat. For a circular or oval mat, the segments may therefore be arc-shaped. For a square or rectangular mat, rectangular segments may be used. For a stadium-shaped mat, a mix of straight and curved segments may be used.
The trampoline as a whole is often covered by a safety net. The safety net is intended to prevent trampoline users from falling off the trampoline. The trampoline net is conventionally configured as a series of poles emerging vertically from the frame of the trampoline. The safety net is attached to this set of poles.
While safety has improved in trampolines in recent years, there nevertheless exists a continuous need to improve safety in the trampoline arts, especially where such improvements can be accomplished in a commercially reasonable fashion.
Embodiments of the invention provide a trampoline, comprising a frame; a flexible mat; a plurality of resilient members attached to the frame and to the flexible mat, wherein the resilient members receive kinetic energy from a user jumping on the flexible mat, causing the user to rise above a surface of the flexible mat; a plurality of safety poles attached above the frame; and a safety net having an upper high tension line attached to an upper end of each safety pole of the plurality of safety poles and having a lower high tension line attached to a mid-section of each safety pole of the plurality of safety poles, wherein a region of the safety net between the upper high tension line and the lower high tension line has a higher tension than other portions of the safety net.
The high-tension line and the lower high-tension line are each configured to withstand forces in a vertical range of 20-30 N and in a horizontal range of 40-50 N, according to an embodiment of the invention.
Embodiments of the invention may provide a top cap having a hook that has been removably mounted to a safety pole and configured to attach to a tether of the plurality of tethers attached to the upper high-tension line of the safety net.
Embodiments of the invention may provide a method for assembling a trampoline, that comprises attaching a flexible mat to a frame using a plurality of resilient members; attaching each tether of a plurality of tethers on a safety net to each safety pole of a plurality of safety poles wherein after each tether is attached to a safety pole of the plurality of safety poles, the safety pole of the plurality of safety poles is attached to a safety pole holder of a plurality of safety pole holders on the frame; and placing an edge pad on the trampoline frame and removably attaching the edge pad to the trampoline frame.
Embodiments of the invention will be further explained by means of non-limiting examples with reference to the appended drawings. Figures provided herein may or may not be provided to scale. The relative dimensions or proportions may vary. It should be noted that the dimensions of some features of the present invention may have been exaggerated for the sake of clarity.
Embodiments of the invention provide a high-tension safety net for application in a trampoline. Safety poles supporting the high-tension safety net have been configured to lean outward at a predetermined angle AA, according to an embodiment of the invention. The predetermined angle AA may be set to a range between 1 degree<AA≤20 degrees, but will most likely be set in the range between 3 degrees≤AA≤15 degrees. A preferred range for the predetermined angle AA in some embodiments of the invention lies in the range from 6 degrees≤AA≤10 degrees. Of course, in other embodiments, the safety poles may have no lean at all. The safety poles are crowned with a top cap configured to hold a tether to the high-tension safety net, according to an embodiment of the invention.
The high-tension safety net has been designed for mounting to the safety poles by a procedure that will not typically require a ladder and is intended to be accomplished by a person of normal height and possibly even below normal height, according to an embodiment of the invention. The set of top caps may be attached to the safety poles. A first top cap may be attached to a tether attached to the safety net and then the safety pole is fitted into a safety pole retainer on the trampoline frame.
Trampolines come in a variety of shapes, such as round, square, rectangular, and stadium. For substantially rectangular shaped trampolines, the trampoline assembler may wish to begin emplacing the safety poles on the trampoline's short sides. As the trampoline assembler attaches more safety poles, the tension in an upper high-tension belt in the safety net increases. For the final safety pole, or perhaps the final few safety poles, the trampoline assembler may need to use the safety pole and its specially designed top cap as a tool somewhat like a spar to snag the final tether on the safety net. The upper high tension belt of the completed safety net will now be under tension, but the level of tension should be low enough that a person of ordinary strength may lever the final safety pool into the safety pole retainer on the trampoline frame. Embodiments of the invention include a lower tensioning belt that when assembled creates a zone of higher tension between the upper portion of the safety net and the lower tensioning belt. The finally assembled safety net will bend outwards and have a high tension.
Applying a high-tension safety net to a trampoline offers numerous advantages. Among other things, a high-tension safety net offers improved safety advantages over a conventional safety net by increasing dampening properties. In other words, if a trampoline user hits the safety net, the safety net will act to dampen the trampoline user's outward movement and decrease the velocity with which the trampoline user later hits another possibly harder object such as the safety pole, which may also be covered in a shock absorbing material. In addition, the high-tension safety net will tend to direct the trampoline user's path through the air back towards the trampoline's flexible mat and away from the edge pad.
Application of a high-tension safety net in combination with other safety features, such as a zipper connecting the bottom of the safety net to the trampoline edge pad aids in separating the user from contact with the hard metal pieces of the trampoline, such as the frame.
Leaning the safety poles outward by some degree AA increases the volume area in which the trampoline user may travel, especially in comparison to some prior art solutions where the upper area of the trampoline is smaller than the lower area where the mat resides. The predetermined angle AA may be set to a range between 1 degree<AA≤20 degrees, but will most likely be set in the range between 3 degrees≤AA≤15 degrees. A preferred range for the predetermined angle AA in some embodiments of the invention lies in the range from 6 degrees≤AA≤10 degrees. Of course, in other embodiments, the safety poles may have no lean at all.
Finally, some safety regulations (e.g., national safety regulations) set minimum height requirements for safety nets and safety poles. Some trampoline assemblers may have sufficient height to assemble regulatory compliant trampoline safety nets and safety poles for smaller trampolines but may have difficulty assembling such safety nets and safety poles for larger trampolines. The safety net, safety pole, and top cap assembly and method provided by embodiments of the present invention allow a much wider group of trampoline assemblers to assemble the trampoline safety net without requiring special equipment, such as ladders, and without having to balance themselves on the edge of the trampoline, which could possibly lead to an injurious fall.
The safety net 109 is held to the safety poles 110a-110h at a high tension by the tethers 105a-105h which are attached to a plurality of top caps 104a-104h positioned at the top of the safety poles 110a-110h, according to an embodiment of the invention. The safety net 109 includes an upper high-tension line 120 that resides at the top end of the safety net 109 and comprises a stronger material than the netting fabric that comprises the body of the safety net 109. The tethers 105a-105h have been securely attached to the upper high-tension line 120 by a method such as sewing, gluing, hermetically sealing, snapping, or buttoning. Embodiments of the upper high-tension line 120 may be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N, according to an embodiment of the invention.
The safety net 109 may also include a lower high-tension line 135 that also acts to stiffen the safety net 109 in a manner similar to the upper high-tension line 120, according to an embodiment of the invention. Embodiments of the lower high-tension line 135 may be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N, according to an embodiment of the invention. Thus, the portions of the safety net 109 between the upper high-tension line 120 and the lower high-tension line 135 may be held much tighter than portions of the safety net 109 outside these two high-tension lines 120, 135, according to an embodiment of the invention. These higher tensioned portions of the safety net 109 generally direct the bodies of trampoline users that strike them during trampoline operation back towards the flexible mat 101. In a sense, the trampoline users may to some extent bounce off the safety net 109 (although the safety net 109 is not generally intended as a substitute for the flexible mat 101), according to an embodiment of the invention. For sake of clarity, the upper high-tension line 120 and the lower high tension line 130 may also be considered to be belts, bands, and other synonymous terms designating an area of the safety net typically comprising a stronger and more durable material than the netting material or fabric that comprises much of the safety net 109, according to an embodiment of the invention.
As shown in
The resilient members 150 comprise a suspension system between the flexible mat 101 and the frame 115 for the trampoline 100. Trampoline users jump or bounce on the flexible mat 101 in a vertical direction D1 and possibly also move in a horizontal direction D2 perpendicular to the first direction D1. As trampoline users move in the horizontal direction D2, they are at risk of falling off the trampoline 100 and injuring themselves. The safety net 109 acts to hold trampoline users onto the trampoline 100. As trampoline users move in the horizontal direction D2, they are also at risk of hitting or landing on one of the trampoline's harder parts, such as the frame 115 or the safety poles 110a-110h, and/or one of the trampoline's moving parts, such as the resilient members 150 of the trampoline's suspension system. The safety net 109 also acts to prevent trampoline users from engaging with these parts as well.
The safety net 109 may have a connector 130 to the edge pad 107. The connector 130 is likely a removeable connection such as a zipper, buttons, belt, string, rope, snaps, or Velcro. The connector 130 acts to prevent body parts of trampoline users from extending outside the region of the safety net 109 and the edge pad 107 and possibly having a harmful engagement with a trampoline part such as the frame 115 or the resilient members 150.
Since trampoline users could possibly land on the suspension system and become injured, the edge pad 107 lies on top of the suspension system comprising the resilient members 150 to protect trampoline users from harm as they jump on the flexible mat 101. The fabric of the flexible mat 101 that users jump or bounce on is often not elastic itself, instead the resilient members 150 (e.g., helical springs) provide the elasticity which creates the potential energy. The edge pad 107 generally serves to reduce the severity of impact injuries.
The safety net 209 includes an upper high-tension line 225 that resides at the top end of the safety net 209 and comprises a stronger material than the netting fabric that comprises the body of the safety net 209. The tethers 205a-205h have been securely attached to the high-tension line 225 by a method such as sewing, gluing, hermetically sealing, snapping, or buttoning. Embodiments of the upper high-tension line 225 may be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N, according to an embodiment of the invention.
As shown by the exploded view of the top cap 213d in
After the trampoline assembly worker has attached a tether of the tethers 205a-205d to a hook of the hooks 204a-204d of the safety caps 205a-205d, the trampoline assembly worker may attach (or insert) the respective safety pole of the safety poles 210a-210h into a respective safe pole holder of the safety pole holders 220a-220h attached to the frame 211. The trampoline assembly worker should preferably attach the safety poles 210a-210h to the safety pole holders 220a-220h such that the net 209 ends up smooth and not crisscrossed. So, for example the safety pole 210a having the top cap 213a with its top cap 204a attached to the tether 205a of the safety net 209 will be placed into the safety pole holder 220a.
As the trampoline assembly worker continues to attach one safety pole after another into its respective safety pole holder (e.g., the safety pole 210a into the safety pole holder 220a then the safety pole 210b into the safety pole holder 220b), the tension in the safety net 209 will begin to increase. As mentioned above, embodiments of the upper high-tension line 220 once assembled may be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N.
When the top cap 204h of the last safety pole 210h needs to be attached to the last tether 205h, the safety net 209 will no longer be loose and will be raised fairly high, such that the tether 205h may likely be out of reach for many trampoline assembly workers.
Rather than having to climb a ladder, the trampoline assembly worker may attach the final tether 205h to the top cap 213h by applying the following procedure. The trampoline assembly worker may verify that the top cap 213h has been placed securely on the pole 210h. The trampoline assembly worker may then hold the pole 210h at an angle and use the top cap 213h to capture the tether 205h. (The safety pole 210a is shown at an angle that may be acceptable for capturing the tether 205a.) If the embodiment of the top cap 213h includes a hook, such as the hook 204d shown in
As the trampoline assembly worker hoists the final safety pole 210h into the safety pole holder 220h, the trampoline assembly worker should observe that the safety net 209 is now under tension. The amount of tension, while higher than conventional trampoline nets, should be lower enough that a person of average strength should be able to place the final safety pole 210h into the safety pole holder 220h, according to an embodiment of the invention. The trampoline assembly worker will typically be standing on the ground while place the final pole 210h into the pole holder 220h. Particularly petite trampoline assembly workers may need to use a step stool or short ladder in order to be sufficiently tall to place the final safety pole 210h into the safety pole holder 220h. Of course, the height of the trampoline assembly worker for unaided assembly somewhat depends on the height of the legs 203.
The procedure described above may be performed in a variety of ways in terms of the order that the safety poles 210a-210h are inserted into the safety pole holders 220a-220h. For example, the safety poles 210a-210h may be assembled in a clockwise or counterclockwise manner. Some trampolines like the trampoline 200 are essentially rectangular while other trampolines may be square, circular, or stadium. For trampolines having a rectangular shape where one side is longer than another side, the trampoline assembly worker may want to place the safety poles of the shorter sides into the safety pole holders before inserting the safety poles on the longer sides of the trampoline. This procedure may be simpler for the trampoline assembly worker and lead to a better result. Thus, in the trampoline 200, the trampoline assembly worker might opt to insert the safety poles 210a, 210h, 210e, and 210d before inserting the safety poles 210f, 210g, 210b, and 210c, leaving one of the safety poles 210f, 210g, 210b, or 210c as the final safety pole to be inserted into its respective safety pole holder.
Once the safety net 209 has been raised and attached to the safety poles 210a-210h, then the trampoline assembly worker may want to attach a lower high-tension line 235 to the safety poles 210a-210h. The lower high-tension line includes a number of tethers 234a-234h that attach to the safety poles 210a-210h. The tethers 234a-234h may be attached to the safety poles 210a-210h in a number of ways. For example, the safety poles 210a-210h may include a lower hook or catch to which the tethers 234a-234h may attach, according to an embodiment of the invention.
As shown in
The resilient members comprise a suspension system between the flexible mat 201 and the frame 211 for the trampoline 200. Trampoline users jump or bounce on the flexible mat 201 in a vertical direction and possibly also move in a horizontal direction perpendicular to the first direction. The resilient members comprise a suspension system between the flexible mat 201 and the frame 211 for the trampoline 200.
As trampoline users move in the horizontal direction, they are at risk of falling off the trampoline 200 and injuring themselves. The safety net 209 acts to hold trampoline users onto the trampoline 200. As trampoline users move in the horizontal direction, they are also at risk of hitting or landing on one of the trampoline's harder parts, such as the frame 211 or the safety poles 210a-210h, and/or one of the trampoline's moving parts, such as the resilient members of the trampoline's suspension system. The safety net 209 also acts to prevent trampoline users from engaging with these parts as well.
The safety net 209 may have a connector 230 to the edge pad 207. The connector 230 is likely a removeable connection such as a zipper, buttons, belt, string, rope, snaps, or Velcro. The safety net 209 may also include a lower tension line 235 that also acts to stiffen the safety net 209, according to an embodiment of the invention.
The edge pad 207 lies on top of the suspension system comprising the resilient members to protect trampoline users from harm as they jump on the flexible mat 201 since they could possibly land on the suspension system and become injured. The fabric of the flexible mat 201 that users jump or bounce on is often not elastic itself, instead the resilient members (e.g., helical springs) provide the elasticity which creates the potential energy. The edge pad 207 generally serves to reduce the severity of impact injuries. The thickness of the flexible mat 201 is typically in the range of 0.2 mm to 1 mm. However, the flexible mat 201 is usually reinforced at its edge, resulting in a higher thickness at the edge of the flexible mat 201.
As shown in
The trampoline 300 will likely include a plurality of safety poles 311, according to an embodiment of the invention. For many of the safety poles first assembled with a connection to the safety net 309, the trampoline assembly worker will likely be able to fit the loop 303 onto the hook 305 by hand, and then lift the safety pole into its respective safety pole holder, as described in
Once the hook 405 has captured the loop 403, then the safety pole 411 may be placed in a safety pole holder, such as the safety pole holder 220a shown in
As the trampoline assembly worker attaches the tethers 501a-501d to the hooks 505a-505d, the trampoline assembly worker may next attach the safety poles 510a-510d into a respective safety pole holder, such as the safety pole holder 220a shown in
As the trampoline assembly worker continues to attach one safety pole 510a after another safety pole 510b into its respective pole holder, the tension in the net 509 will begin to increase, especially on the upper high-tension line 511. As mentioned in connection with the upper high-tension line 220 shown in
When the hook 505d of the last pole 510d needs to be attached to the last loop 501d, the safety net 509 will no longer be loose and the high-tension line 511 will be raised higher than it was in the early phases of assembly, such that the loop 501d may likely be out of reach for many trampoline assembly workers. (Note: this example assumes that the trampoline assembly worker has also attached the safety net 509 to the safety poles not shown in
Rather than having to climb a ladder or climb onto the trampoline 500, the trampoline assembly worker may attach the final loop 501d to the hook 505d by following the following procedure. The trampoline assembly worker may verify that the top cap 504d having the hook 505d has been placed securely on the pole 510d. The trampoline assembly worker may then hold the pole 510d at an angle and use the hook 505d to capture the loop 501d. For example, the trampoline assembly worker may swoop (or wedge) the hook 505d into the loop 501d. Once the loop 501d has been secured to the hook 505d, then the trampoline assembly worker may hoist the pole 510d up and into its pole holder.
As the trampoline assembly worker hoists the final pole 510d into its respective safety pole holder, the trampoline assembly worker should notice that the upper high-tension line 511 of the safety net 509 is now under tension. As mentioned in connection with the upper high-tension line 220 shown in
The trampoline assembly worker will typically be standing on the ground while place the final pole 510d into its respective safety pole holder. Particularly petite trampoline assembly workers may need to use a step stool or short ladder in order to be sufficiently tall to place the final pole 510d into the safety pole holder. Of course, the height of the trampoline assembly worker for unaided assembly somewhat depends on the height of the legs of the trampoline 500.
As shown in
When the hook 605h of the last safety pole 610h needs to be attached to the last tether 604h, the safety net 609 will no longer be loose and the high-tension line 615 will be raised fairly high, such that the tether 604h is likely be out of reach for many trampoline assembly workers, such as the trampoline assembly worker 670.
Rather than having to climb a ladder or climb onto the trampoline 600, the trampoline assembly worker 670 may attach the final tether 604h to the hook 605h by applying the following procedure. The trampoline assembly worker 670 may verify that the top cap 606h having the hook 605h has been placed securely on the safety pole 610h. The trampoline assembly worker 670 may then hold the safety pole 610h at an angle and use the hook 605h to capture the tether 604h. For example, the trampoline assembly worker 670 may swoop (or wedge) the hook 605h up and into the tether 604h by lifting the safety pole 610h, turning the hook 605h to face the tether 604h and then pulling the hook 605h into the tether 604h. Once the tether 604h has been secured to the hook 605h, then the trampoline assembly worker 670 may hoist the pole 610h up and into the pole holder 620h.
As the trampoline assembly worker hoists the final pole 610h into the safety pole holder 620h, the trampoline assembly worker 670 should notice that the high-tension line 615 of the safety net 609 is now under higher tension. The amount of tension, while higher than conventional trampoline nets, should be low enough that a person of average strength should be able to place the safety pole 610h into its safety pole holder 620h. If the final safety pole is under a great deal of tension, then the trampoline assembly worker 670 may guide the safety pole 610h into the final safety pole holder 620h and then bend (or rotate) the safety pole 610h outward himself to the angle AA (e.g., 6.5 degrees). In other words, the trampoline assembly worker 670 may apply torque to the safety pole 610h to cause it to rotate in the safety pole holder 620h, according to an embodiment of the invention. The need for the safety pole assembly worker 670 to take extra steps in completing the final safety pole 610h likely depends on the construction of the trampoline 600 and safety net 609 as well as the overall physical strength of the trampoline assembly worker 670.
The trampoline assembly worker 670 will typically be standing on the ground while placing the final safety pole 610h into the safety pole holder 620h. Particularly petite trampoline assembly workers may need to use a step stool or short ladder in order to be sufficiently tall to place the final safety pole 610h into the safety pole holder 620h. Of course, the height of the trampoline assembly worker 670 for unaided assembly somewhat depends on the height of the legs 603 of the trampoline 600.
The trampoline assembly worker 670 may next assemble a lower high-tension line 640 on the safety net 609 to the safety poles 610a-610h, according to an embodiment of the invention. The lower high-tension line 640 includes a number of tethers 634a-634h that may be removably attached to the safety poles 610a-610h, according to an embodiment of the invention. The tethers 634a-634h may be attached to the safety poles 610a-610h by a variety of mechanisms, such as an attachment point on the safety poles 610a-610h, according to an embodiment of the invention. The lower high-tension line 640 once assembled may be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N, according to an embodiment of the invention.
The trampoline assembly worker 670 may also attach a connector 635 at a bottom portion of the safety net 609 to the edge pad 607, according to an embodiment of the invention. The connector 635 may include a removeable connection mechanism such as a zipper, buttons, belt, string, rope, snaps, or Velcro. The connector 635 may prevent trampoline users from extending bodily parts outside the trampoline, according to an embodiment of the invention.
In terms of assembling the safety net to the safety poles using the top cap 701, the optimal procedure would likely be a little different than the method shown in
The safety net 809 is held to the poles 820a-820f at a tension due to the tethers 804a-804f held at a tension to a plurality of hooks 805a-805f positioned at the top of the top caps 810a-810f, according to an embodiment of the invention.
As shown in
The safety net 809 is held by a plurality of safety poles 820a-820f, according an embodiment of the invention. The safety net 809 is held to the safety poles 820a-820f at a high tension by the tethers 804a-804f which are attached to a plurality of top caps 810a-810f positioned at the top of the safety poles 820a-820f, according to an embodiment of the invention.
The safety net 809 includes an upper high-tension line 825 that resides at the top end of the safety net 809 and comprises a stronger material than the netting fabric that comprises the body of the safety net 809. The tethers 804a-804f have been securely attached to the high-tension line 825 by a method such as sewing, gluing, hermetically sealing, snapping, or buttoning.
The safety net 809 may also include a lower high-tension line 835 that also acts to stiffen the safety net 809, according to an embodiment of the invention. The lower high-tension line 835 may be held to the safety poles 820a-820f by a number of tethers 834a-834f. The tethers 834a-834f have been securely attached to the lower high-tension line 835 by a method such as sewing, gluing, hermetically sealing, snapping, or buttoning.
The upper high-tension line 825 and the lower high-tension line 835 act to create an area of higher tension in the safety net 809. Embodiments of the upper high-tension line 825 and the lower high-tension line 835 may each be configured to withstand forces in the vertical range of 20-30 N and in the horizontal range of 40-50 N, according to an embodiment of the invention.
The safety net 809 acts to hold trampoline users onto the trampoline 800. As trampoline users move in the horizontal direction, they are also at risk of hitting or landing on one of the trampoline's harder parts, such as the frame 811 or the safety poles 820a-820f, and/or one of the trampoline's moving parts, such as the resilient members of the trampoline's suspension system. The safety net 809 also acts to prevent trampoline users from engaging with these parts as well. The safety net 809 may have a connector 830 to the edge pad 807. The connector 830 is likely a removeable connection such as a zipper, buttons, belt, string, rope, snaps, or Velcro.
Embodiments of the invention may comprise a kit that is provided to the user in the form of a series of parts, such as a flexible mat, an edge pad, a frame (possibly in a number of pieces), a plurality of resilient members, and a safety layer. Instructions for assembling a trampoline comprising these parts can be provided to the user.
The trampolines described herein are amenable to assembly, particularly assembly outside of the factory where they were made such as by a user or a delivery person. The assembly can typically be accomplished by hand or with a minimum number of tools, according to an embodiment of the invention. The legs (e.g., the legs 803 shown in
Further modifications of the invention within the scope of the appended claims are feasible. As such, the present invention should not be considered as limited by the embodiments and figures described herein. Rather, the full scope of the invention should be determined by the appended claims, with reference to the description and drawings.
Various embodiments of the invention have been described in detail with reference to the accompanying drawings. References made to particular examples and implementations are for illustrative purposes and are not intended to limit the scope of the invention or the claims.
It should be apparent to those skilled in the art that many more modifications of the trampoline besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except by the scope of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context.
Headings and sub-headings provided herein have been provided as an assistance to the reader and are not meant to limit the scope of the invention disclosed herein. Headings and sub-headings are not intended to be the sole or exclusive location for the discussion of a particular topic.
While specific embodiments of the invention have been illustrated and described, it will be clear that the invention is not limited to these embodiments only. Embodiments of the invention discussed herein may have generally implied the use of materials from certain named equipment manufacturers; however, the invention may be adapted for use with equipment from other sources and manufacturers. Equipment used in conjunction with the invention may be configured to operate according to conventional methods and protocols and/or may be configured to operate according to specialized protocols. Numerous modifications, changes, variations, substitutions and equivalents will be apparent to those skilled in the art without departing from the spirit and scope of the invention as described in the claims. In general, in the following claims, the terms used should not be construed to limit the invention to the specific embodiments disclosed in the specification but should be construed to include all systems and methods that operate under the claims set forth hereinbelow. Thus, it is intended that the invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
| Number | Date | Country | |
|---|---|---|---|
| 62797216 | Jan 2019 | US | |
| 62797215 | Jan 2019 | US | |
| 62797214 | Jan 2019 | US |
