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The Springfree trampoline's design includes the use of glass-reinforced plastic rods articulating below the jumping surface, as opposed to the radiating steel spring coils of a Nissen trampoline. The jumping surface is lowered around 450mm below the jumping surface of a traditional trampoline, and the base's rigidity is derived from a tubular ...
The trampoline bed is rectangular 4.28 by 2.14 metres (14 ft 1 in × 7 ft 0 in) in size fitted into the 5.05 by 2.91 metres (17 ft × 10 ft) frame [10] with around 110 steel springs (the actual number may vary by manufacturer). The bed is made of a strong fabric that can be woven from webbing, which is the most commonly used material.
DMT can be sourced back to 1970 when its inventors Robert F Bollinger and George Nissen combined two Mini trampolines with a small table and mat to cover in between. Later Robert F Bollinger combined the two Mini trampolines to create one 430 cm long Double Mini Trampoline and also designed the rules for competition and terms such as the mounter and spotter passes and he established its own ...
JumpSport expanded their line to include fitness trampolines in 2008. [10] In 2011, they extended into the age 2–5 market with the introduction of the "iBounce" trampoline with integrated iPad/tablet holder. [13]
Nissen set up a manufacturing plant for his company in England in 1956 headed up by Ted Blake an English trampoline pioneer, first in Hainault then Romford and finally Brentwood, Essex by the mid-1960s, and manufactured trampolines there for many years. Brentwood still has a thriving trampolining community but no longer a local factory.
The Trampoline Gymnastics World Championships [1] [2] are the world championships for trampoline gymnastics including double mini trampoline and tumbling. They were originally held annually from 1964–1968. The frequency was switched to biennially from 1970–1998.