# US 10,245,457 B2 · Trampoline assembly having adjustable resilient members > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,245,457 B2 - Document ID: US10245457B2 - Status: Granted - Kind: B2 - Application number: 15/306,465 - Filed: 2015-05-05 - Published: 2017-02-23 - Granted: 2019-04-02 - Earliest claimed: 2014-05-06 - Applicants: Masato Ikegami - Inventors: Masato Ikegami - Web page: https://patentgrep.com/patent/US10245457B2 ## CPC - A63B 5/11: Trampolines - A63B 21/023: {Wound springs} - A63B 2225/09: Adjustable dimensions - A63B 2225/30: Maintenance - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A trampoline assembly (10) comprises a trampoline bed (12); a trampoline frame (14) that supports the trampoline bed (12); and a plurality of spaced apart, resilient members (16) that are attached to and extend substantially between the trampoline bed (12) and the trampoline frame (14) to maintain the trampoline bed (12) in tension. At least one of the resilient members (16) is an adjustable resilient member (216) that can be selectively adjusted while simultaneously connected to both the trampoline frame (14) and the trampoline bed (12) to selectively adjust the tension of the trampoline bed (12). The adjustable resilient member (216) includes a resilient assembly (218); a first connector (220) that is movably connected to the resilient assembly (218); and a second connector (222) that is movably connected to the resilient assembly (218). The resilient assembly (218) is rotatable in a first rotational direction to increase the tension of the trampoline bed (12), and in a second rotational direction to decrease the tension of the trampoline bed (12). ## Claims ### Claim 1 A trampoline assembly comprising: a trampoline bed; a trampoline frame that supports the trampoline bed; and a plurality of spaced apart, resilient members that are attached to and extend substantially between the trampoline bed and the trampoline frame to maintain the trampoline bed in tension, wherein at least one of the plurality of spaced apart, resilient members is an adjustable resilient member that can be selectively adjusted while simultaneously connected to both the trampoline frame and the trampoline bed to selectively adjust the tension of the trampoline bed; and wherein the adjustable resilient member includes a resilient assembly, wherein the resilient assembly includes a single spring, a first plug that is fixedly secured to the single spring, and a second plug that is fixedly secured to the single spring, the second plug being spaced apart from the first plug, a first connector that connects the resilient assembly to the trampoline bed, the first connector including a first externally threaded surface that is threaded into the first plug, and a second connector that connects the resilient assembly to the trampoline frame, the second connector including a second externally threaded surface that is threaded into the second plug, wherein threads of the first externally threaded surface are opposite from threads of the second externally threaded surface such that one of the first externally threaded surface and the second externally threaded surface includes right-hand threads and the other of the first externally threaded surface and the second externally threaded surface includes left-hand threads; wherein the resilient assembly is rotatable (i) in a first rotational direction relative to the first connector and the second connector while the adjustable resilient member is simultaneously connected to both the trampoline frame and the trampoline bed to increase the tension of the trampoline bed, and (ii) in a second rotational direction relative to the first connector and the second connector while the adjustable resilient member is simultaneously connected to both the trampoline frame and the trampoline bed to decrease the tension of the trampoline bed; wherein threads of the first externally threaded surface have a differently spaced pitch than threads of the second externally threaded surface. ### Claim 2 (depends on 1) The trampoline assembly of claim 1 wherein the first connector is rotatably connected to the resilient assembly, and wherein the second connector is rotatably connected to the resilient assembly. ### Claim 3 (depends on 1) The trampoline assembly of claim 1 wherein the first connector includes a first hook and the trampoline bed includes a first hole, and wherein the first hook fits into the first hole to connect the resilient assembly to the trampoline bed. ### Claim 4 (depends on 1) The trampoline assembly of claim 1 wherein the first connector includes a first washer and a first nut that are positioned near a first distal end of the first connector, the first washer and the first nut working in conjunction with one another to inhibit undesired relative movement between the first connector and the resilient assembly. ### Claim 5 (depends on 1) The trampoline assembly of claim 1 wherein the second connector includes a second hook and the trampoline frame includes a second hole, and wherein the second hook fits into the second hole to connect the resilient assembly to the trampoline frame. ### Claim 6 (depends on 1) The trampoline assembly of claim 1 wherein the second connector includes a second washer and a second nut that are positioned near a second distal end of the second connector, the second washer and the second nut working in conjunction with one another to inhibit undesired relative movement between the second connector and the resilient assembly. ### Claim 7 (depends on 1) The trampoline assembly of claim 1 wherein all of the plurality of spaced apart, resilient members are adjustable resilient members. ### Claim 8 A trampoline assembly comprising: a trampoline bed; a trampoline frame that supports the trampoline bed; and a plurality of spaced apart, resilient members that are attached to and extend substantially between the trampoline bed and the trampoline frame to maintain the trampoline bed in tension, wherein at least one of the plurality of spaced apart, resilient members is an adjustable resilient member that selectively adjusts the tension of the trampoline bed, the adjustable resilient member including (i) a resilient assembly including a single spring, a first plug that is fixedly secured to the single spring, and a second plug that is fixedly secured to the single spring, the second plug being spaced apart from the first plug; (ii) a first connector that is movably connected to the resilient assembly, the first connector connecting the resilient assembly to the trampoline bed, the first connector being threaded into the first plug, the first connector including a first externally threaded surface; and (iii) a second connector that is movably connected to the resilient assembly, the second connector connecting the resilient assembly to the trampoline frame, the second connector being threaded into the second plug, the second connector including a second externally threaded surface; wherein threads of the first externally threaded surface are opposite from threads of the second externally threaded surface such that one of the first externally threaded surface and the second externally threaded surface includes right-hand threads, and the other of the first externally threaded surface and the second externally threaded surface includes left-hand threads; and wherein the threads of the first externally threaded surface have a differently spaced pitch than the threads of the second externally threaded surface. ### Claim 9 (depends on 8) The trampoline assembly of claim 8 wherein the resilient assembly is rotatable (i) in a first rotational direction relative to the first connector and the second connector to increase the tension of the trampoline bed, and (ii) in a second rotational direction relative to the first connector and the second connector to decrease the tension of the trampoline bed. ### Claim 10 (depends on 8) The trampoline assembly of claim 8 wherein the adjustable resilient member can be selectively adjusted while simultaneously connected to both the trampoline frame and the trampoline bed to selectively adjust the tension of the trampoline bed. ### Claim 11 (depends on 8) The trampoline assembly of claim 8 wherein the first connector includes a first hook and the trampoline bed includes a first hole, and wherein the first hook fits into the first hole to connect the resilient assembly to the trampoline bed; and wherein the second connector includes a second hook and the trampoline frame includes a second hole, and wherein the second hook fits into the second hole to connect the resilient assembly to the trampoline frame. ### Claim 12 A trampoline assembly comprising: a trampoline bed; a trampoline frame that supports the trampoline bed; and a plurality of spaced apart, resilient members that are attached to and extend substantially between the trampoline bed and the trampoline frame to maintain the trampoline bed in tension, wherein at least one of the plurality of spaced apart, resilient members is an adjustable resilient member that selectively adjusts the tension of the trampoline bed, the adjustable resilient member including (i) a resilient assembly including a spring, a first plug that is fixedly secured to the spring, and a second plug that is fixedly secured to the spring, the second plug being spaced apart from the first plug; (ii) a first connector that is movably connected to the resilient assembly, the first connector connecting the resilient assembly to the trampoline bed, the first connector being threaded into the first plug, the first connector including a first externally threaded surface; and (iii) a second connector that is movably connected to the resilient assembly, the second connector connecting the resilient assembly to the trampoline frame, the second connector being threaded into the second plug, the second connector including a second externally threaded surface; and wherein threads of the first externally threaded surface have a differently spaced pitch than threads of the second externally threaded surface. ### Claim 13 (depends on 12) The trampoline assembly of claim 12 wherein the resilient assembly is rotatable (i) in a first rotational direction relative to the first connector and the second connector to increase the tension of the trampoline bed, and (ii) in a second rotational direction relative to the first connector and the second connector to decrease the tension of the trampoline bed. ### Claim 14 (depends on 12) The trampoline assembly of claim 12 wherein the adjustable resilient member can be selectively adjusted while simultaneously connected to both the trampoline frame and the trampoline bed to selectively adjust the tension of the trampoline bed. ### Claim 15 (depends on 12) The trampoline assembly of claim 12 wherein the first connector includes a first hook and the trampoline bed includes a first hole, and wherein the first hook fits into the first hole to connect the resilient assembly to the trampoline bed; and wherein the second connector includes a second hook and the trampoline frame includes a second hole, and wherein the second hook fits into the second hole to connect the resilient assembly to the trampoline frame.