Undertaking
Patent
1981-06-10
1982-07-13
Apley, Richard J.
Undertaking
403205, A63B 508
Patent
active
043391230
ABSTRACT:
A demountable trampoline capable of being separated into components suitable for compact packaging for shipment, comprising a segmented tubular top rail frame forming a closed loop frame to be supported in elevated horizontal position by vertical ground-engaging leg members and support a trampoline sheet in encircled relation within the top rail frame suspended by plural suspension springs interconnecting margins of the trampoline sheet to the frame. The top rail frame is formed of elongated top rail tube member sections having a uniform inner diameter bore opening through the opposite ends of each section and having a transversely narrow elongated interlocking end slot opening through each respective end of each section and extending inwardly along the lowermost wall portion thereof a predetermined short distance longitudinally parallel to the center axis of its adjacent tube member end portion. A T-joint connector is provided for interconnecting adjacent ends of each top rail section and supporting the same from one of the leg members. The connector has a head member of circular cross-section having an outer diameter corresponding to the inner diameter of the top rail tube members for telescopically receiving them. The uppermost portion of the connector's leg member is flattened immediately adjoining the top cross-head member to a transversely narrow elongated tongue-like cross-section sized to interfit in and closely conform to said interlocking end slots in the adjacent confronting ends of a pair of said top rail tube member sections.
REFERENCES:
patent: 774393 (1904-11-01), Palmer
patent: 1488244 (1924-03-01), Hinton
patent: 2858551 (1958-11-01), Sidlinger
patent: 2991841 (1961-07-01), Sampson et al.
patent: 3031688 (1962-05-01), Southwood
patent: 3502330 (1970-03-01), Cheftel
patent: 4157801 (1979-06-01), Elmer
patent: 4234226 (1980-11-01), Colby
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