Furniture Guided in a Synchronised Manner

Abstract

A piece of furniture ( 10 ), in particular an item of office furniture or furniture for young persons, comprises body ( 14 ) from which a drawer ( 11 through 13 ) may be pulled out in a drawer motion direction ( 19 ) along a drawer path ( 27 ), such drawer running on a guide arrangement ( 20 ) on the body ( 14 ), and on two mutually opposite side portions ( 28 and 29 ), parallel to the drawer motion direction ( 19 ), of the drawer ( 11 through 13 ) gear wheels ( 30 ) synchronously coupled together are in mesh with racks ( 39 ) set on the body ( 14 ), for parallelization of the drawer ( 11 through 13 ) so that on the body the drawer does not run askew to the drawer motion direction ( 19 ). The racks ( 39 ) are constituted by tooth sections ( 32 and 33 ) on a front and/or a rear terminal section ( 25 and 26 ) of the drawer path ( 27 ). The gear wheels ( 30 ) are out of mesh with a rack ( 39 ) in a drawer path part clear of the tooth sections ( 32 and 33 ) in the front and/or the rear terminal section ( 25 and 26 ).

1 . A piece of furniture and in particular office furniture or furniture for young persons, comprising a body ( 14 ;  52  and  80 ) from which a drawer ( 11  through  13 ;  51  and  71 ) may be pulled out in a drawer motion direction ( 19 ) along a drawer path ( 27 ), such drawer being guided on a guide arrangement ( 20  and  58 ) on the body ( 14 ;  52  and  80 ) and two synchronously coupled gear wheels ( 30 ;  64  and  74 ) placed on two mutually opposite side portions ( 28  and  29 ) parallel to the drawer motion direction ( 19 ) of the drawer ( 11  through  13 ;  51  and  71 ) meshing with gear racks ( 39 ) arranged on the body ( 14 ;  52  and  80 ) for parallel guidance of the drawer so that the drawer ( 11  through  13 ;  51  and  71 ) does not run askew and athwart the drawer motion direction ( 19 ) on the body ( 14 ;  52  and  80 ), characterized in that the racks ( 39 ) are constituted by tooth sections ( 32 ,  33 ;  61  and  74 ) on a front and/or a rear terminal section ( 25 ,  26 ;  67  and  68 ) of the drawer path ( 27 ) and that the gear wheels ( 30 ;  64  and  74 ) in a drawer path part ( 34 ) clear of the tooth sections  32 ;  33 ′  61  and  74 ) are disengaged from a rack ( 39 ) in the front and/or rear terminal section ( 25 ,  26 ;  67  and  68 ). 
   
   
       2 . The piece of furniture as set forth in  claim 1 , characterized in that the gear wheels ( 30 ;  64  and  74 ) are arranged in a rear portion of the drawer projecting downward or rearward or obliquely downward on the drawer ( 11  through  13 ;  51  and  71 ). 
   
   
       3 . The piece of furniture as set forth in  claim 1  or in  claim 2 , characterized in that the front tooth sections ( 32 ,  33 ;  61  and  74 ) extend as far as a front terminal abutment ( 35 ) and/or the rear tooth sections ( 32 ,  33 ;  61  and  74 ) extend as far as a rear terminal abutment ( 36 ) on the drawer path. 
   
   
       4 . The piece of furniture as set forth in  claim 1  or in  claim 2 , characterized in that between at least one tooth section ( 32 ,  33 ;  61  and  74 )and a front or a rear terminal abutment ( 35  and  36 ) on the drawer path ( 27 ) in front of or to the rear of the at least one tooth section ( 32 ,  33 ;  61  and  74 ) there is a clearance (D) which is approximately so wide that at least a part of the outer periphery of the gear wheel meshing with the at least one tooth section ( 32 ,  33 ;  61  and  74 ) fits between the at least one tooth section ( 32 ,  33 ;  61  and  74 ) and the terminal abutment. 
   
   
       5 . The piece of furniture as set forth in any one preceding claim, characterized in that the gear wheels ( 30 ;  64  and  74 ) so mesh with a predetermined strain with the tooth sections ( 32 ,  33 ;  61  and  74 ) that the drawer is retarded in the respective terminal section ( 25 ,  26 ;  67  and  68 ) of the drawer path ( 27 ). 
   
   
       6 . The piece of furniture as set forth in  claim 5 , characterized in that the strain increases from the drawer path part ( 34 ) clear of the tooth sections ( 32 ,  33 ;  61  and  74 ) as far as a front or rear terminal portion of the tooth sections ( 32 ,  33 ;  61  and  74 ). 
   
   
       7 . The piece of furniture as set forth in any one of the preceding claims, characterized in that the gear wheels ( 30 ;  64  and  74 ) are coupled together by shaft ( 31  and  65 ) extending athwart the drawer motion direction ( 19 ). 
   
   
       8 . The piece of furniture as set forth in  claim 7 , characterized in that the shaft ( 31  and  65 ) is retarded by a friction bearing and/or a brake arrangement. 
   
   
       9 . The piece of furniture as set forth in any one of the  claims 1  through  6 , characterized in that the gear wheels ( 74 ) are coupled together by a transmission ( 75 ) and in particular a belt transmission. 
   
   
       10 . The piece of furniture as set forth in any one of the preceding claims, characterized in that the guide arrangement ( 20  and  58 ) has a guide part ( 21 ′), more especially a telescoping guide ( 21 ), on which at least one tooth section ( 32 ,  33 ;  61  and  74 ) is arranged. 
   
   
       11 . The piece of furniture as set forth in  claim 10 , characterized in that the at least one tooth section ( 32 ,  33 ;  61  and  74 ) constitutes an integral component of the guide part ( 21 ′). 
   
   
       12 . The piece of furniture as set forth in any one of the preceding claims, characterized in that the at least one tooth section ( 32 ,  33 ;  6   a  and  74 ) is formed by a tooth element component ( 37 ), which is able to be attached on the guide arrangement ( 20  and  58 ) and/or in a socket, more particularly holes ( 40 ) arranged in grid, in the body ( 14 ;  52  and  80 ). 
   
   
       13 . The piece of furniture as set forth in any one of the preceding claims, characterized by a locking means ( 66 ) more particularly arranged on a side portion ( 28  and  29 ) of the drawer ( 11  through  13 ;  51  and  71 ) for locking the drawer ( 11  through  13 ;  51  and  71 ). 
   
   
       14 . The piece of furniture as set forth in any one of the preceding claims, characterized in that it is in the form of furniture for young persons and is more especially a wheel borne container or desk.