Beds – Crib – Folding
Patent
1998-07-22
1999-10-12
Trettel, Michael F.
Beds
Crib
Folding
5 981, 5 931, 256 25, A47D 1306
Patent
active
059639962
ABSTRACT:
A supporting structure for play yard includes a top frame, a bottom frame and at least three support posts mounted between the top frame and the bottom frame to define an interior cavity. Each of the support posts includes a frame post having an adjustment base axially affixed to a bottom end of the frame post. Each of the adjustment bases has a threaded upper shank and an enlarged base turner. To assemble the supporting structure, penetrate each of the support posts through a threaded adjusting hole of a respective holding joint of the bottom frame until a top end of the support post rotatably inserts into a head sleeve of the top frame through its bottom opening. Therefore, the distance between the top frame and the bottom frame can be adjusted by screwing the threaded upper shank in or out of the threaded adjusting hole. Thereby, the supporting structure for play yard not only can provide a rigid frame structure free of shaking and rocking, but also can tensely support the cloth boundary to have a better appearance and to reinforce the rigid frame structure to avoid any unwanted collapse.
REFERENCES:
patent: 2810554 (1957-10-01), Blazey
patent: 3268921 (1966-08-01), Schurle
patent: 4008497 (1977-02-01), Badon
Chan Raymond Y.
Conley Fredrick
Trettel Michael F.
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