Table having at least one extension capable of being pulled out through a mere rotation

Abstract

Table comprising a fixed worktop ( 10 ) under which there are attached the legs for the support thereof, as well as a pull-out, ie. extractable extension ( 30 ). The means ( 20 ) used to link the fixed worktop ( 10 ) with the extension ( 30 ) comprise members ( 21, 23 ) that are attached on respective section planes ( 13, 32 ) and are provided with interacting part ( 22, 24 ) extending along an axis (Z) that is orthogonal to said inclined section planes ( 13, 32 ). In this manner, the sole and only operation that has to be carried out in order to extract to retract the extension ( 30 ) is a rotation by 180° about said axis (Z). The fixed worktop is preferably either rectangular or square while the same worktop and the extensions can even be made with crystal panes.

1 . Table comprising a fixed worktop ( 10 ;  150 ) under which there are attached the support legs, at least one extractable extension ( 30 ;  154 ) and means for linking said fixed worktop with said extension, characterized in that the linking means ( 20 ) comprise mutually interacting parts ( 22 ,  24 ;  100 ,  110 ,  120 ,  130 ;  158 ) which are respectively attached to the lower surfaces ( 14 ) of the fixed worktop and to the lower surface ( 34 ) of the extension ( 30 ;  154 ) to allow for a 180° rotation of the extension ( 30 ;  160 ) with respect to the fixed worktop ( 10 ;  150 ) which is the sole and only operation required for bringing the extension from its retracted configuration to its extracted configuration, and viceversa.  
     
     
         2 . Table according to  claim 1 , characterized in that members ( 21 ,  23 ,  25 ) of the linking means ( 20 ) are mounted on section planes ( 13 ,  32 ) that are parallel to each other and inclined with respect to the surfaces ( 11 ,  33 ) of the fixed worktop ( 10 ) and the extension ( 30 ), respectively, and are provided with interacting parts ( 22 ,  24 ) extending along an axis (Z) that is orthogonal to said inclined section planes ( 13 ,  32 ) so as to allow for a 180°rotation of the extension ( 30 ) with respect to the fixed worktop ( 10 ), in which said rotation is the sole and only operation required for extracting the extension.  
     
     
         3 . Table according to  claim 2 , characterized in that said members of the linking means ( 20 ) that are mounted on the inclined section planes ( 13 ,  32 ) consists of a first and a second rigid plate ( 21 ,  23 ) between which there is retained a further member ( 25 ) made of an antifriction material such as PTFE, or polytetrafluoroethylene.  
     
     
         4 . Table according to  claim 2  or  3 , characterized in that the interacting parts of the linking means ( 20 ), which are accommodated in a recess provided in the extension ( 30 ) starting from the surface ( 33 ) thereof that is not exposed to view, consist of a threaded stud ( 22 ) and a bushing ( 24 ), respectively, and are adapted to be retained to each other by means of a nut ( 26 ).  
     
     
         5 . Table according to  claim 1 , characterized in that the linking means comprise: 
 a bushing ( 100 ) which is adapted to have a rotational movement about its longitudinal axis with respect to a pair of coaxial discs ( 110 ,  120 ) which are secured to one another and slidably mounted at the ends ( 105 ,  107 ) of the bushing, one of the said discs ( 120 ) having its outer surface firmly attached to the bottom surface and to the adjacent inclined section plane of the fixed worktop, and    a third disc ( 130 ) which is secured to a rigid sloping wing ( 102 ) which protrudes from the said bushing ( 100 ) as well as to the bottom surface of the corresponding extension.    
     
     
         6 . Table according to  claim 5 , characterized in that elastic means ( 140 ) are supported in the said bushing ( 100 ) and so as to be selectively retained also by a transversal groove provided on the opposite flat face of the disc ( 120 ) which is attached to the bottom surface and to the inclined section plane of the fixed worktop to provide the stability of the extension with respect to the fixed worktop in the extracted as well as in the retracted configuration.  
     
     
         7 . Table according to any of the preceding claims, characterized in that the body ( 40 ) of each leg is attached—in such a manner as to extend along an axis (Y) that is inclined with respect to the floor (S)—to a rigid support ( 41 ) in the shape of substantially a “V”, more precisely to the flee end ( 44 ) of the lower arm ( 43 ) of the said rigid support ( 41 ) that forms with the upper arm thereof ( 42 ) an angle (β) which is substantially twice the angle (α) of inclination of said axis of rotation (Z).  
     
     
         8 . Table according to  claim 7 , characterized in that the upper arm ( 42 ) of the said rigid support ( 41 ) is arranged along a plane (X) intercepting the longitudinal mid plane (P) of the table and is attached to the lower surface ( 14 ) of the fixed worktop ( 10 ).  
     
     
         9 . Table according to any of the preceding claims, characterized in that the fixed worktop ( 10 ;  150 ) is of a four-sides shape and the portion ( 37 ;  155 ) of the at least one extension ( 30 ;  130 ) which is adapted to protrude from a side thereof ( 12 ;  112 ) has a curved shape.  
     
     
         10 . Table according to  claim 9 , characterized in that the fixed worktop ( 10 ) is of a rectangular shape and the the portion ( 37 ) of the at least one extension ( 30 ) which is adapted to protrude from a short side thereof ( 12 ) has the shape of a semicircle.  
     
     
         11 . Table according to  claim 11 , characterized in that the fixed worktop ( 110 ) is of a square shape and the the portion ( 155 ) of the four extensions ( 154 ) which are adapted to protrude from the four sides thereof ( 152 ) have the shape of a circular segment in such a way that the table is adapted to be converted from a square shape when the extension ( 154 ) is in the retracted configuration to a round shape when the extension is in the extracted configuration.