02-01-2003 дата публикации
Номер: US20030000117A1
The invention relates to a collapsible support frame ( 1 ), particularly for ironing boards ( 2 ), comprising a ground bearing base ( 3 ), at least an arm ( 6; 6 a ; 6 b ) having one end linked with the bearing base ( 3 ) and the other end that can be restrained to the ironing board ( 2 ), and blocking removable means acting both on the arm ( 6 ), or on the arms ( 6 a , 6 b ), and on the bearing base ( 3 ), and on the ironing board ( 2 ) to maintain said arm erected in a working position at an adjustable level above the bearing base ( 3 ), wherein said blocking removable means comprise at least two strut elements, one of which has its end articulated, when used, respectively one to said arm ( 6 ), or arms ( 6 a , 6 b ), and the other one to said bearing base ( 3 ), while the other strut element is articulated, when used, to said arm ( 6 ), or arms ( 6 a , 6 b ), and to the ironing board ( 2 ), and locking removable means to lock the position of said strut elements, each strut element comprising a plurality of plate-shaped element, packed by the interposition of a friction spacing element between two adjacent plate-shaped elements, and each one providing one end articulated to the arm ( 6 ) or arms ( 6 a , 6 b ) or to the bearing base ( 3 ), or to the ironing board ( 2 ), the other end provided with a slot ( 13 ) for the loose articulation, to the bearing base ( 3 ) or to the ironing board ( 2 ), or to the arm ( 6 ), or arms ( 6 a , 6 b ), respectively, and said locking removable means providing a tension rod ( 14 ), axially slidably mounted, and acting to engage the slots ( 13 ) and to pack said plurality of plate-shaped elements ( 8 ), elastic means ( 18 ) to load the tension rod ( 14 ), and an operation device, suitable to neutralize, upon activation, the elastic loading force of the tension rod ( 14 ), thus allowing the sliding displacement each other between plate-shaped elements ( 8 ) and tension rod ( 14 ), said collapsible frame ( 1 ) being characterized in ...
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