US20060116242A1 - Trampoline with adjustable spring tension - Google Patents
Trampoline with adjustable spring tension Download PDFInfo
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- US20060116242A1 US20060116242A1 US11/282,990 US28299005A US2006116242A1 US 20060116242 A1 US20060116242 A1 US 20060116242A1 US 28299005 A US28299005 A US 28299005A US 2006116242 A1 US2006116242 A1 US 2006116242A1
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- Prior art keywords
- frame
- trampoline system
- pin
- trampoline
- springs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B5/00—Apparatus for jumping
- A63B5/11—Trampolines
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
- A63B21/023—Wound springs
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/30—Maintenance
Definitions
- the present invention relates to improvements in trampoline, and in particular, the present invention concerns jumping surfaces used with trampolines to protect trampoline users from injury, and to provide new uses for trampolines.
- trampolines have been used for a variety of athletic and recreational purposes. However, thousands of injuries have resulted when persons jumping on a trampoline have landed on the rebounding surface while in an awkward or incorrect body position. These “on-bed” injuries, according to some medical studies, represent the majority of trapoline-related emergency room visits.
- the U.S. Consumer Products Safety Commission (CPSC) reports that in 1999 approximately 110,000 people were treated in emergency rooms for trampoline related injuries. Even though this number is half that of play structure/swing set injuries, some in the medical community have called for a ban on the sale of backyard trampolines.
- the CPSC and the AAOS have taken a more responsible and measured approach to problem. Recognizing that other outdoor activities that are more injurious, like bicycling, would fill the void left by backyard trampoline play, these organizations have instead called for safety improvements to help reduce the large number of trampoline injuries.
- harnesses are designed for safely teaching users advanced acrobatics on high-performance competition trampolines by trained professionals, making them largely inappropriate for low-performance backyard trampolines that are used almost entirely for basic jumping activities and not for advanced acrobatics.
- a bed with less tension is more forgiving when a jumper first contacts its surface, it absorbs the impact more slowly and will thus reduce the severity and quantity of on-bed injuries. Nevertheless, injuries suffered during an impact with the rebounding surface are still occurring in large numbers on backyard trampoline beds even though these beds are designed to be less responsive and to have less initial surface tension than gymnastic grade, competition trampoline beds. Reducing bed-impact injuries, especially those that occur on backyard trampolines, was the purpose of the present invention, though the art can be used with all trampolines.
- Low performance backyard trampolines are used very differently than high performance trampolines used by skilled competitors for training and competition. For instance, many on-bed backyard trampoline injuries occur when multiple jumpers are using the trampoline at the same time as reported in the NEISS data compiled by the CPSC. Because children enjoy playing together most families allow more than one child to jump at the same time even though this practice is strongly discouraged by trampoline manufacturers, the CPSC, and others experts. Competition trampolines are used almost exclusively in disciplined environments for the structured teaching of specific skills.
- backyard trampolines are largely used for fun, unstructured, imaginative play activities that are relished by kids and recommended by child development experts who understand that daily physical activity significantly enhances learning ability and that kids need activities to counterbalance today's over-structured and sedentary lifestyles.
- Prior trampolines used a rebounding matt that is attached to a frame by a plurality of springs that have a fixed tension.
- the fixed tension is not suitable for all users as they very in body weight, age and strength.
- the first object is achieved by proving a trampoline wherein the springs attach to the frame via an intermediate member whose length can be varied to modify the spring tension.
- FIG. 1 is a plan view showing the trampoline rebounding matt and attachment to the trampoline frame.
- FIG. 2 is a perspective view of a trampoline rebounding matt, frame and springs showing where the spring tension is adjusted along the edge of the frame.
- FIG. 3 is a cross sectional elevation showing the rotating pin and related structure as disposed within the bore trampoline frame.
- FIG. 4 is a cross sectional elevation showing the detailed construction of a first embodiment of the pin in FIG. 3 .
- FIG. 5 is a cross sectional elevation showing the detailed construction of a second embodiment of the pin in FIG. 3 .
- FIG. 6 is an elevation of the pin of FIG. 5 from a viewpoint outside the trampoline frame, corresponding to section A-A in FIG. 5 .
- FIG. 7 is an external plan view of an alternative embodiment of the pin.
- FIG. 8 is a cross-sectional elevation of the pin of FIG. 7 .
- FIG. 1-8 are not intended to be drawn to the same relative or absolute scale, but rather each figure is drawn at a scale to properly display and describe the interrelationship between the elements thereof It being understood that one of ordinary skill in the art, can readily make adjustments thereto depending on the same and scale of the desired trampoline.
- FIGS. 1 through 8 wherein like reference numerals refer to like components in the various views, there is illustrated therein a new and improved trampoline with adjustable springs, generally denominated 100 herein.
- the ability to adjust or tune the system rebounding response for each player benefits their health and safety.
- the rebounding response it adjusted by varying the spring tension as shown and described below.
- the tension in the adjacent or nearby spring alternate as taught in U.S. patent application Ser. No. 2003/0036460 A 1 (for a Trampoline system with adjustable spring elements) such that the springs engage in “stages,” instead of all a once, making for a softer initial impact.
- the instant invention provides for the tension of each spring to be individually adjusted providing a functionality that allows users to customize the bounce by tightening or loosening the spring connections at the external side of the spring frame. This inventive system gives the user control over the feel and performance during rebounding on the trampoline.
- FIG. 1 illustrates in a perspective view a portion of a trampoline system that comprises a circular frame 12 held above the ground by a plurality of laterally downward extending legs 60 .
- the rebounding matt or bed 14 is held in tension and suspected within frame 12 by coupling to the proximal ends of a plurality of spring, which are in turn coupled to the inside of the circular frame 12 at their distal ends.
- Coupling means a direct or indirect mechanical connection of two members.
- springs 10 and 10 ′ attach to the rebounding matt 14 at a plurality of locations around the perimeter via an intermediate plate 40 .
- Intermediate plate 40 has central hole 41 and aperture 45 and 46 on opposite sides of the central hole 41 that receive fabric loops 51 and 52 sewn, stitched or otherwise adhered to the rebounding matt 14 at 54 and 53 .
- the hooks like ends of one or more springs are inserted into central hole 41 to couple the springs 10 to the rebounding bed 14 .
- each of the pins 20 and 20 ′ have at least one hole or bore 21 for receiving the hook like distal end of the spring 10 .
- the pins 20 extend through a bore 25 in the circular frame 12 .
- Each pin has a head 28 that extends beyond the diameter of bore 25 coupling the pin 20 to the frame 12 , fixing the lateral position of pin 20 with respect to frame 12 .
- each pin 20 has a plurality 24 of holes 21 , 22 and 23 for receiving the hook like distal end of spring 10 .
- the spring tension is tunable between two, and preferably three or more discrete levels.
- the trampoline frame 12 is supported above the ground by a plurality of legs 60 .
- Adjusting the position of the end of springs in a hole selected from plurality 24 requires the user to pull back a protective pad (not shown) to expose the top ring 12 of the trampoline frame and the periphery of rebounding matt 14 . The user then replaces the protective pad after selecting a different hole from plurality 24 after tightening or loosening spring connectors before use.
- each spring 10 can be adjusted while the pad is left in place.
- the tension in each spring 10 is optionally varied continuously by adjusting the effective length of pin 20 while it is seated in bore 25 .
- FIG. 4-6 illustrate further details of such pin and related mechanisms that permit the continuous adjustment of rebounding characteristics of mat 14 .
- the adjustment range of each pin is preferably at least separation between holes in plurality 24 .
- the pin mechanism 20 is again disposed within a bore 25 through frame 12 .
- pin 20 has in effect two portions 26 and 27 that can be translated relative to each other to shorten or length the pin, that is the distance between head 28 at the distal end of portion 26 and hole 21 , disposed toward the proximal end of portion 27 .
- Portion 26 includes head 28
- portion 27 includes the plurality of holes 24 .
- Portion 27 has an internal bore 27 a with internal threads 27 b.
- the shaft of portion 26 opposite head 28 has exterior threads 26 b that rotationally engage with threads 27 b of portion 27 .
- Head 28 includes a tool receiver opening 29 (for example a slot for a screw driver or hexagonal hole for an allen wrench) such that the corresponding tool can be used to rotate portion 26 while portion 27 is prevented from rotation by the resistance of spring 10 .
- FIG. 5 illustrates an alternative embodiment of the invention, shown in cross-sectional elevation, in which a spin lock mechanism 30 prevents the rotation of pin 20 by coupling the head 28 thereof to the frame 12 .
- the spin lock mechanism 30 is a means for preventing the gradually loosening or movement of the threaded portion of the pin 20 from vibration.
- the spin lock mechanism 30 comprises relatively flat plate 38 having an inverted “L” shape connected by the narrower edge to the end of circular shaft 35 . Note that a portion 38 a of flat plate 38 is connected to the upper portion of circular shaft 35 .
- FIG. 6 is an orthogonal elevational taken at section line A-A in FIG. 5 .
- a spring 33 is attached to the other end of the circular shaft 35 , both of which are in turn disposed with a second mating bore 34 formed within frame 12 .
- the opposite end of spring 30 which is proximal to the interior of the trampoline, is fixed outside of bore 34 by end washer 36 .
- spring 33 urges flat plate 38 inward toward frame 12 as it engages the slot 29 in head 28 . It is also desirable that the upper portion 38 a of flat plate 38 engage the vertical slot 12 a in frame 12 .
- flat plate 38 engage both slot 29 and slot 12 a securely fixes the relative position of head 28 with respect to frame 12 , thus preventing the unwanted rotation of pin 20 (and in particular portion 26 with respect to portion 27 )
- flat head 38 is readily disengaged from slots 29 and 12 a by pulling it forward and rotating it 90 degrees.
- This alternative position for flat plate 38 (shown in dashed lines in FIG. 6 and labeled 38 ′) clears the front of pin head 38 for receiving a screwdriver tip in slot 29 for rotating portion 26 .
- pin 20 need not be formed of two portions, but may be externally threaded to engage female threads in bore 25 . As it is desirable that the portion of pin 20 with the plurality of holes 24 not rotate about the axis of bore 25 when the head 28 is rotated to translate pin 20 with bore 25 .
- FIG. 7 and 8 One embodiment of such a pin 20 is illustrated FIG. 7 and 8 .
- pin 20 has a freely rotating or bearing coupling 70 disposed between the portion 77 that includes the proximal end with holes 24 and the portion 76 that includes the distal end having head 28 and slot 29 .
- Portion 76 has external thread 72 for engage a threaded coupling, insert or bore and the like that may be forming in or associated with frame 12 . It will also be apparent that alternative methods of locking the head 28 of pin 20 are possible.
- each of the adjustable springs 10 may be connected or coupled to a discrete position on the perimeter of the mat 14 with a common connection of an adjacent spring.
- the embodiment shown and described with respect to FIG. 2 is preferred.
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Abstract
Springs or other elastic connectors used to support a bed within the frame of a trampoline or the like are attached using methods that permit the adjustment and/or a systematic variation of the tension (or the travel distance required to reach limit of elasticity) between adjacent (or sets of adjacent) springs. These spring attachment methods adjust the energy absorption capacity of the tramnpoline bed, as well as increase the time it takes a given trampoline to absorb a given amount of energy, increasing the shock absorption time and thereby reducing the likelihood of an injury.
Description
- The present application claims priority to the U.S. provisional application for a “Trampoline with adjustable spring tension” filed on Nov. 19, 2004, having
serial number 60/629,652, which is incorporated herein by reference. - The present invention relates to improvements in trampoline, and in particular, the present invention concerns jumping surfaces used with trampolines to protect trampoline users from injury, and to provide new uses for trampolines.
- In the past, trampolines have been used for a variety of athletic and recreational purposes. However, thousands of injuries have resulted when persons jumping on a trampoline have landed on the rebounding surface while in an awkward or incorrect body position. These “on-bed” injuries, according to some medical studies, represent the majority of trapoline-related emergency room visits. The U.S. Consumer Products Safety Commission (CPSC) reports that in 1999 approximately 110,000 people were treated in emergency rooms for trampoline related injuries. Even though this number is half that of play structure/swing set injuries, some in the medical community have called for a ban on the sale of backyard trampolines. The CPSC and the AAOS have taken a more responsible and measured approach to problem. Recognizing that other outdoor activities that are more injurious, like bicycling, would fill the void left by backyard trampoline play, these organizations have instead called for safety improvements to help reduce the large number of trampoline injuries.
- One approach to reducing trampoline injuries has been to form a wall around the perimeter of a trampoline bed so that when a jumper lands too near the edge, the wall prevents the jumper from falling off. Examples are shown in U.S. Pat. Nos. 5,399,132 and 6,053,845. However, these devices do not directly address injuries that result when users impact the rebounding surface incorrectly or while in an awkward position. A second approach, the use of a harness (worn by the jumper) suspended by elastic cords above the rebounding surface, is an effective way to reduce on-bed, or rebound surface impact injuries. However, such harnesses are designed for safely teaching users advanced acrobatics on high-performance competition trampolines by trained professionals, making them largely inappropriate for low-performance backyard trampolines that are used almost entirely for basic jumping activities and not for advanced acrobatics.
- All things being equal, a bed with less tension is more forgiving when a jumper first contacts its surface, it absorbs the impact more slowly and will thus reduce the severity and quantity of on-bed injuries. Nevertheless, injuries suffered during an impact with the rebounding surface are still occurring in large numbers on backyard trampoline beds even though these beds are designed to be less responsive and to have less initial surface tension than gymnastic grade, competition trampoline beds. Reducing bed-impact injuries, especially those that occur on backyard trampolines, was the purpose of the present invention, though the art can be used with all trampolines.
- Low performance backyard trampolines are used very differently than high performance trampolines used by skilled competitors for training and competition. For instance, many on-bed backyard trampoline injuries occur when multiple jumpers are using the trampoline at the same time as reported in the NEISS data compiled by the CPSC. Because children enjoy playing together most families allow more than one child to jump at the same time even though this practice is strongly discouraged by trampoline manufacturers, the CPSC, and others experts. Competition trampolines are used almost exclusively in disciplined environments for the structured teaching of specific skills. In contrast, backyard trampolines are largely used for fun, unstructured, imaginative play activities that are relished by kids and recommended by child development experts who understand that daily physical activity significantly enhances learning ability and that kids need activities to counterbalance today's over-structured and sedentary lifestyles.
- Unfortunately, these unstructured trampoline activities generate numerous on-bed injuries when jumpers land on the rebounding surface in an awkward body position or when a jumper lands on a trampoline bed that has been preloaded with the energy from other jumper impacts.
- There thus remains a need to significantly reduce the quantity and severity of on-bed injuries that result from such playful activities. Prior trampolines used a rebounding matt that is attached to a frame by a plurality of springs that have a fixed tension. The fixed tension is not suitable for all users as they very in body weight, age and strength.
- It is therefore a first object of the present invention to provide an improved trampoline with adjustable springs.
- In the present invention, the first object is achieved by proving a trampoline wherein the springs attach to the frame via an intermediate member whose length can be varied to modify the spring tension.
- The above and other objects, effects, features, and advantages of the present invention will become more apparent from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
-
FIG. 1 is a plan view showing the trampoline rebounding matt and attachment to the trampoline frame. -
FIG. 2 is a perspective view of a trampoline rebounding matt, frame and springs showing where the spring tension is adjusted along the edge of the frame. -
FIG. 3 is a cross sectional elevation showing the rotating pin and related structure as disposed within the bore trampoline frame. -
FIG. 4 is a cross sectional elevation showing the detailed construction of a first embodiment of the pin inFIG. 3 . -
FIG. 5 is a cross sectional elevation showing the detailed construction of a second embodiment of the pin inFIG. 3 . -
FIG. 6 is an elevation of the pin ofFIG. 5 from a viewpoint outside the trampoline frame, corresponding to section A-A inFIG. 5 . -
FIG. 7 is an external plan view of an alternative embodiment of the pin. -
FIG. 8 is a cross-sectional elevation of the pin ofFIG. 7 . - It should be understood that
FIG. 1-8 are not intended to be drawn to the same relative or absolute scale, but rather each figure is drawn at a scale to properly display and describe the interrelationship between the elements thereof It being understood that one of ordinary skill in the art, can readily make adjustments thereto depending on the same and scale of the desired trampoline. - Referring to
FIGS. 1 through 8 , wherein like reference numerals refer to like components in the various views, there is illustrated therein a new and improved trampoline with adjustable springs, generally denominated 100 herein. - Every potential player on a trampoline has a different strength-to-weight ratio. Thus, the ability to adjust or tune the system rebounding response for each player benefits their health and safety. In the instant invention the rebounding response it adjusted by varying the spring tension as shown and described below.
- The basic operation and configuration of attaching a trampoline mat to a trampoline frame are taught in United States patents and Published application Ser. No. 6,261,207 (for a Trampoline or the like with enclosure); 6,053,845 (for a Trampoline or the like with enclosure); U.S. patent application Ser. No. 20040121883 (for a Trampoline system); U.S. patent application Ser. No. 2003/0104905 A1 for a Trampoline system with plural beds; U.S. patent application Ser. No. 2003/0036460 A1 (for a Trampoline system with adjustable spring elements) and U.S, patent application Ser. No. 2002/0137598 A1 (for a Trampoline or the like with enclosure), all of which are incorporated herein by reference.
- In a preferred embodiment of the invention the tension in the adjacent or nearby spring alternate as taught in U.S. patent application Ser. No. 2003/0036460 A1 (for a Trampoline system with adjustable spring elements) such that the springs engage in “stages,” instead of all a once, making for a softer initial impact. The instant invention provides for the tension of each spring to be individually adjusted providing a functionality that allows users to customize the bounce by tightening or loosening the spring connections at the external side of the spring frame. This inventive system gives the user control over the feel and performance during rebounding on the trampoline.
- Accordingly,
FIG. 1 illustrates in a perspective view a portion of a trampoline system that comprises acircular frame 12 held above the ground by a plurality of laterally downward extendinglegs 60. The rebounding matt orbed 14 is held in tension and suspected withinframe 12 by coupling to the proximal ends of a plurality of spring, which are in turn coupled to the inside of thecircular frame 12 at their distal ends. Coupling means a direct or indirect mechanical connection of two members. - As shown in more detail in the plan view of
FIG. 2 ,springs matt 14 at a plurality of locations around the perimeter via anintermediate plate 40.Intermediate plate 40 hascentral hole 41 andaperture central hole 41 that receivefabric loops matt 14 at 54 and 53. The hooks like ends of one or more springs are inserted intocentral hole 41 to couple thesprings 10 to the reboundingbed 14. - Referring to
FIG. 3 it can be seen that the distal ends of thesprings circular frame 12 viapins pins spring 10. Thepins 20 extend through abore 25 in thecircular frame 12. Each pin has ahead 28 that extends beyond the diameter ofbore 25 coupling thepin 20 to theframe 12, fixing the lateral position ofpin 20 with respect to frame 12. - In the preferred embodiment shown in
FIG. 3 , eachpin 20 has aplurality 24 ofholes spring 10. By attaching the distal end of eachspring 10 to one of the plurality ofholes 24, the spring tension is tunable between two, and preferably three or more discrete levels. As shown inFIG. 1 thetrampoline frame 12 is supported above the ground by a plurality oflegs 60. - It is generally desirable to locate and space holes 24 taking into account the stiffness of the
springs 10 to be used, such that the middle setting,hole 22, is the optimal setting for users of average height and weight. Thus, a firmer bounce will be obtained by connecting all springs to theholes 23 most proximal to thetrampoline frame 12. Conversely, a softer bounce will be obtained by connecting all springs to theholes 21 most distal from thetrampoline frame 12 - Adjusting the position of the end of springs in a hole selected from
plurality 24 requires the user to pull back a protective pad (not shown) to expose thetop ring 12 of the trampoline frame and the periphery of reboundingmatt 14. The user then replaces the protective pad after selecting a different hole fromplurality 24 after tightening or loosening spring connectors before use. - However, in the more preferred embodiments of
FIG. 4-6 the spring tension can be adjusted while the pad is left in place. In such embodiments, the tension in eachspring 10 is optionally varied continuously by adjusting the effective length ofpin 20 while it is seated inbore 25.FIG. 4-6 illustrate further details of such pin and related mechanisms that permit the continuous adjustment of rebounding characteristics ofmat 14. The adjustment range of each pin is preferably at least separation between holes inplurality 24. - In
FIG. 4 , thepin mechanism 20 is again disposed within abore 25 throughframe 12. However,pin 20 has in effect twoportions head 28 at the distal end ofportion 26 andhole 21, disposed toward the proximal end ofportion 27.Portion 26 includeshead 28, whereasportion 27 includes the plurality ofholes 24.Portion 27 has aninternal bore 27 a with internal threads 27 b. The shaft ofportion 26opposite head 28 has exterior threads 26 b that rotationally engage with threads 27 b ofportion 27.Head 28 includes a tool receiver opening 29 (for example a slot for a screw driver or hexagonal hole for an allen wrench) such that the corresponding tool can be used to rotateportion 26 whileportion 27 is prevented from rotation by the resistance ofspring 10. -
FIG. 5 illustrates an alternative embodiment of the invention, shown in cross-sectional elevation, in which aspin lock mechanism 30 prevents the rotation ofpin 20 by coupling thehead 28 thereof to theframe 12. Thespin lock mechanism 30 is a means for preventing the gradually loosening or movement of the threaded portion of thepin 20 from vibration. Thespin lock mechanism 30 comprises relativelyflat plate 38 having an inverted “L” shape connected by the narrower edge to the end ofcircular shaft 35. Note that aportion 38 a offlat plate 38 is connected to the upper portion ofcircular shaft 35. The cooperative engagement of theflat plate 38 withinslot 29 ofhead 28 is also illustrated inFIG. 6 , which is an orthogonal elevational taken at section line A-A inFIG. 5 . Aspring 33 is attached to the other end of thecircular shaft 35, both of which are in turn disposed with a second mating bore 34 formed withinframe 12. The opposite end ofspring 30, which is proximal to the interior of the trampoline, is fixed outside ofbore 34 byend washer 36. Thus,spring 33 urgesflat plate 38 inward towardframe 12 as it engages theslot 29 inhead 28. It is also desirable that theupper portion 38 a offlat plate 38 engage the vertical slot 12 a inframe 12. Havingflat plate 38 engage bothslot 29 and slot 12 a securely fixes the relative position ofhead 28 with respect to frame 12, thus preventing the unwanted rotation of pin 20 (and inparticular portion 26 with respect to portion 27) However, when the user wishes to adjust the tension ofspring 10,flat head 38 is readily disengaged fromslots 29 and 12 a by pulling it forward and rotating it 90 degrees. This alternative position for flat plate 38 (shown in dashed lines inFIG. 6 and labeled 38′) clears the front ofpin head 38 for receiving a screwdriver tip inslot 29 for rotatingportion 26. - It will be apparent to one of ordinary skill in the art that alternative cooperative structures in
frame 12 andpin 20 may be deployed to enable the lateral translation of holes inplurality 24 to vary the tension inspring 10 continuously. For example, pin 20 need not be formed of two portions, but may be externally threaded to engage female threads inbore 25. As it is desirable that the portion ofpin 20 with the plurality ofholes 24 not rotate about the axis ofbore 25 when thehead 28 is rotated to translatepin 20 withbore 25. One embodiment of such apin 20 is illustratedFIG. 7 and 8. - Accordingly,
pin 20 has a freely rotating or bearingcoupling 70 disposed between theportion 77 that includes the proximal end withholes 24 and theportion 76 that includes the distalend having head 28 andslot 29.Portion 76 hasexternal thread 72 for engage a threaded coupling, insert or bore and the like that may be forming in or associated withframe 12. It will also be apparent that alternative methods of locking thehead 28 ofpin 20 are possible. - Further, referring back to
FIG. 2 , it should be appreciated that it is not essential to couple a pair ofspring mat 14 usingintermediate plate 40. In alternative embodiments, each of theadjustable springs 10 may be connected or coupled to a discrete position on the perimeter of themat 14 with a common connection of an adjacent spring. However, it should be appreciated that the embodiment shown and described with respect toFIG. 2 is preferred. - While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be within the spirit and scope of the invention as defined by the appended claims.
Claims (20)
1. A trampoline system comprising:
a) a rebounding bed,
b) a frame surrounding said rebounding bed that is suspended above the ground,
c) a plurality of springs spaced about and coupled to said frame at the proximal end and coupled to the rebounding bed at the distal end,
d) wherein the proximal end of one or more of said springs is coupled to said frame via an intermediate bracket, the radial displacement of said bracket being variable to adjust the tension of said spring.
2. A trampoline system according to claim 1 wherein at least one pairs of adjacent springs in said plurality of spaced apart springs are couple to said rebounding bed at a common junction.
3. A trampoline system according to claim 1 wherein said bracket comprises a pin seated in a bore formed in said frame.
4. A trampoline system according to claim 3 wherein said bracket is laterally displaced by rotation of said pin.
5. A trampoline system according to claim 4 wherein said pin includes a first and a second concentric segment in mutual threaded engagement whereby rotation of one concentric segment with respect to the other concentric segment increases the effective length of said pin to laterally displace said bracket.
6. A trampoline system according to claim 3 wherein said pin is in threaded engagement within a threaded bore through said frame.
7. A trampoline system according to claim 6 wherein said pin has a freely rotary segment intermediate the connection with the bracket.
8. A trampoline system according to claim 1 wherein one or more of said brackets has a plurality of holes at the distal end thereof for receiving a hook at the proximal end of said spring.
9. A trampoline system according to claim 3 wherein one or more of said brackets has a plurality of holes at the distal end thereof for receiving a hook at the proximal end of said spring.
10. A trampoline system according to claim 5 wherein one or more of said brackets has a plurality of holes at the distal end thereof for receiving a hook at the proximal end of said spring.
11. A trampoline system according to claim 1 and further comprising an intermediate plate for coupling said bracket to said rebounding bed.
12. A trampoline system according to claim 11 wherein said intermediate plate is connected to the distal end of two or more springs.
13. A trampoline system according to claim 11 wherein said intermediate plate is connected to the distal end of two or more springs at a central hole therein.
14. A trampoline system according to claim 11 wherein said intermediate plate comprises one or more aperture that receive fabric loops connected to said rebounding bed.
15. A trampoline system according to claim 4 wherein said pin can be locked to prevent rotation thereof.
16. A trampoline system according to claim 15 wherein said pin is locked by a plate that engages the head of the pin extending outward from said frame and a corresponding slot in said frame.
17. A trampoline system according to claim 16 wherein said locking plate is attached to the frame is urged to engage in the head of said pin and the slot in said frame by a spring coupled to said frame.
18. A pin assembly comprising:
a) a first elongated member having one or more holes associated with the distal end thereof and an internally thread bore on the proximal end,
b) a second elongated member having a threaded distal end for engaging the internally threaded bore of said first elongated member, and a laterally extending head at the proximal end, wherein said head also comprises a cavity for receiving a tool head such that the second elongated member can be rotated with respect to the first elongated member.
19. A trampoline system comprising:
a) a rebounding bed,
b) a frame surrounding said rebounding bed that is suspended above the ground,
c) an elongated intermediate bracket coupled to said frame at the proximal end and extending inwards towards said rebounding mat at the distal end, and further comprising a plurality of holes spaced apart from said distal end,
d) a plurality of springs spaced about and coupled to the periphery of the rebounding bed at the distal end, and attached to one of the holes in said plurality at the proximal end whereby the radial displacement of said spring by attachment to a different hole in said plurality varies the tension in said spring.
20. A trampoline system according to claim 19 wherein the radial displacement of said elongated bracket at the coupling to said frame is variable to adjust the tension of one or more of said springs without removing the connected spring from the hole in said bracket.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/282,990 US20060116242A1 (en) | 2004-11-19 | 2005-11-17 | Trampoline with adjustable spring tension |
PCT/US2005/042085 WO2006055885A1 (en) | 2004-11-19 | 2005-11-18 | Trampoline with adjustable spring tension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62965204P | 2004-11-19 | 2004-11-19 | |
US11/282,990 US20060116242A1 (en) | 2004-11-19 | 2005-11-17 | Trampoline with adjustable spring tension |
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Publication Number | Publication Date |
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US20060116242A1 true US20060116242A1 (en) | 2006-06-01 |
Family
ID=36407483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/282,990 Abandoned US20060116242A1 (en) | 2004-11-19 | 2005-11-17 | Trampoline with adjustable spring tension |
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US (1) | US20060116242A1 (en) |
WO (1) | WO2006055885A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090050780A1 (en) * | 2007-08-24 | 2009-02-26 | Poe Garrett D | Devices For Reducing Or Eliminating Defects In Polymer Workpieces |
US20160296782A1 (en) * | 2013-12-10 | 2016-10-13 | Xiaoping Tang | Connecting Structure Between Trampoline Bed and Frame, and Trampoline and Connecting Piece Using Same |
US20170043211A1 (en) * | 2012-08-27 | 2017-02-16 | Prism Alliance Group Inc. | Device and method for strengthening and rehabilitating the ankle joint |
US9717940B1 (en) | 2016-03-11 | 2017-08-01 | Luke Schueler | Trampoline suspension mount and connection system |
US20170368397A1 (en) * | 2015-01-20 | 2017-12-28 | Active Fun Company Limited | Rebounder assembly having an adjustable tension bed |
US10159864B2 (en) | 2016-02-23 | 2018-12-25 | Shelterit, Llc | Foldable trampoline with an adjustable tension system |
US10245457B2 (en) | 2014-05-06 | 2019-04-02 | Masato Ikegami | Trampoline assembly having adjustable resilient members |
CN114344798A (en) * | 2022-01-25 | 2022-04-15 | 永康天鑫工贸有限公司 | Self-adaptive elastic children trampoline |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140274570A1 (en) * | 2013-03-13 | 2014-09-18 | Samuel Chen | Torsion Spring Trampoline |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US125783A (en) * | 1872-04-16 | Improvement in bed-bottoms | ||
US398334A (en) * | 1889-02-19 | Bed bottom | ||
US2533520A (en) * | 1946-05-14 | 1950-12-12 | William B Shimp | Lifesaving net |
US3233895A (en) * | 1961-10-13 | 1966-02-08 | Albert C Grelle | Trampolines |
US4162063A (en) * | 1976-01-15 | 1979-07-24 | Nissen Corporation | Adjustable springs for trampolines and the like |
US4225131A (en) * | 1978-02-03 | 1980-09-30 | Sidlinger Bruce C | Portable exercising device for multiple routines |
US4452444A (en) * | 1981-08-03 | 1984-06-05 | Imagination Properties, Inc. | Rebound exerciser |
US5069445A (en) * | 1990-09-13 | 1991-12-03 | Mai Phuong N | Foot and leg exercise device |
US5399132A (en) * | 1993-09-20 | 1995-03-21 | Bailey; Arthur | Safety enclosure for trampoline |
US5984837A (en) * | 1995-07-21 | 1999-11-16 | Playsmart, Inc. | Tensioned floor system |
US6053845A (en) * | 1997-06-20 | 2000-04-25 | Jumpsport, Llc | Trampoline or the like with enclosure |
US6237169B1 (en) * | 1999-10-18 | 2001-05-29 | Lai Fen Ying | Foldable trampoline |
US20020137598A1 (en) * | 1997-06-20 | 2002-09-26 | Publicover Mark W. | Trampoline or the like with enclosure |
US20030036460A1 (en) * | 2000-08-14 | 2003-02-20 | Publicover Mark W | Trampoline system with adjustable spring elements |
US20030104905A1 (en) * | 2000-08-14 | 2003-06-05 | Publicover Mark W. | Trampoline system with plural beds |
US20040121883A1 (en) * | 2002-08-09 | 2004-06-24 | Publicover Mark W. | Trampoline system |
US7018322B1 (en) * | 2003-04-23 | 2006-03-28 | American Institute Of Reboundology, Inc. | Quarter-foldable rebounder with improved features |
-
2005
- 2005-11-17 US US11/282,990 patent/US20060116242A1/en not_active Abandoned
- 2005-11-18 WO PCT/US2005/042085 patent/WO2006055885A1/en active Application Filing
Patent Citations (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US125783A (en) * | 1872-04-16 | Improvement in bed-bottoms | ||
US398334A (en) * | 1889-02-19 | Bed bottom | ||
US2533520A (en) * | 1946-05-14 | 1950-12-12 | William B Shimp | Lifesaving net |
US3233895A (en) * | 1961-10-13 | 1966-02-08 | Albert C Grelle | Trampolines |
US4162063A (en) * | 1976-01-15 | 1979-07-24 | Nissen Corporation | Adjustable springs for trampolines and the like |
US4225131A (en) * | 1978-02-03 | 1980-09-30 | Sidlinger Bruce C | Portable exercising device for multiple routines |
US4452444A (en) * | 1981-08-03 | 1984-06-05 | Imagination Properties, Inc. | Rebound exerciser |
US5069445A (en) * | 1990-09-13 | 1991-12-03 | Mai Phuong N | Foot and leg exercise device |
US5399132A (en) * | 1993-09-20 | 1995-03-21 | Bailey; Arthur | Safety enclosure for trampoline |
US5984837A (en) * | 1995-07-21 | 1999-11-16 | Playsmart, Inc. | Tensioned floor system |
US6053845A (en) * | 1997-06-20 | 2000-04-25 | Jumpsport, Llc | Trampoline or the like with enclosure |
US6261207B1 (en) * | 1997-06-20 | 2001-07-17 | Jumpsport, Inc. | Trampoline or the like with enclosure |
US20020137598A1 (en) * | 1997-06-20 | 2002-09-26 | Publicover Mark W. | Trampoline or the like with enclosure |
US6237169B1 (en) * | 1999-10-18 | 2001-05-29 | Lai Fen Ying | Foldable trampoline |
US20030036460A1 (en) * | 2000-08-14 | 2003-02-20 | Publicover Mark W | Trampoline system with adjustable spring elements |
US20030104905A1 (en) * | 2000-08-14 | 2003-06-05 | Publicover Mark W. | Trampoline system with plural beds |
US6840891B2 (en) * | 2000-08-14 | 2005-01-11 | Mark W. Publicover | Trampoline system with systematically phased spring elements |
US6846271B2 (en) * | 2000-08-14 | 2005-01-25 | Mark W. Publicover | Trampoline system with plural beds |
US20040121883A1 (en) * | 2002-08-09 | 2004-06-24 | Publicover Mark W. | Trampoline system |
US7018322B1 (en) * | 2003-04-23 | 2006-03-28 | American Institute Of Reboundology, Inc. | Quarter-foldable rebounder with improved features |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090050780A1 (en) * | 2007-08-24 | 2009-02-26 | Poe Garrett D | Devices For Reducing Or Eliminating Defects In Polymer Workpieces |
US8342492B2 (en) * | 2007-08-24 | 2013-01-01 | Nexolve Corporation | Devices for reducing or eliminating defects in polymer workpieces |
US20170043211A1 (en) * | 2012-08-27 | 2017-02-16 | Prism Alliance Group Inc. | Device and method for strengthening and rehabilitating the ankle joint |
US10434365B2 (en) * | 2012-08-27 | 2019-10-08 | Secure linx Corporation | Device and method for strengthening and rehabilitating the ankle joint |
US20160296782A1 (en) * | 2013-12-10 | 2016-10-13 | Xiaoping Tang | Connecting Structure Between Trampoline Bed and Frame, and Trampoline and Connecting Piece Using Same |
US9889328B2 (en) * | 2013-12-10 | 2018-02-13 | Xiaoping Tang | Connecting structure between trampoline bed and frame, and trampoline and connecting piece using same |
US10245457B2 (en) | 2014-05-06 | 2019-04-02 | Masato Ikegami | Trampoline assembly having adjustable resilient members |
US20170368397A1 (en) * | 2015-01-20 | 2017-12-28 | Active Fun Company Limited | Rebounder assembly having an adjustable tension bed |
US9993676B2 (en) * | 2015-01-20 | 2018-06-12 | Active Fun Company Limited | Rebounder assembly having an adjustable tension bed |
US10159864B2 (en) | 2016-02-23 | 2018-12-25 | Shelterit, Llc | Foldable trampoline with an adjustable tension system |
US9717940B1 (en) | 2016-03-11 | 2017-08-01 | Luke Schueler | Trampoline suspension mount and connection system |
CN114344798A (en) * | 2022-01-25 | 2022-04-15 | 永康天鑫工贸有限公司 | Self-adaptive elastic children trampoline |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
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