Braking and damping device

Abstract

The invention concerns a braking and damping device for movable masses—in particular, for movable cabinet components, with a casing, a first adjustable braking element that is located partially in the casing and is coupled with the movable cabinet component and a second adjustable braking element that is located in the casing; whereby, the braking elements form operating surfaces that are inter-related, so that a shifting of the braking elements relative to one another produce a braking force. The invention shows that the braking elements that are coupled together by a transferring element that provides and removes force in such a manner that in a first movement phase, the braking elements implement a synchronous movement with which the relative velocity between the operating surfaces is smaller or less than the speed of the first braking element that is coupled with the cabinet component. In the second movement phase the braking elements implement opposite movement with which the relative velocity between the operating surfaces is greater than the speed of the first, with the braking element coupled with the cabinet component and in the third movement phase, the first two movement phases are opposite movement phases, the second braking element essentially stands still. The relative velocity between the operating surfaces corresponds essentially to the speed of the first braking element ( 7 ) coupled to the cabinet component.

1 . Braking and damping device for movable masses, in particular for movable cabinet components, with a casing ( 2 ), a first adjustable braking element ( 7 ) that is located partially in the casing and is coupled with the movable cabinet component and a second adjustable braking element ( 12 ) that is located in the casing; whereby, the braking elements form operating surfaces ( 11 ,  15 ) that are related to one another, so that a shifting of the braking elements relative to one another produce the braking force, is characterized by the braking elements ( 7 ,  12 ) that are coupled together by a transferring element ( 16 ) that provides and removes force in such a manner that in a first movement phase the braking elements ( 7 ,  12 ) implement a synchronous movement with which the relative velocity between the operating surfaces ( 11 ,  15 ) is smaller or less than the speed of the first braking element ( 7 ) that is coupled with the cabinet component. In the second movement phase the braking elements ( 7 ,  12 ) implement opposite movement with which the relative velocity between the operating surfaces ( 11 ,  15 ) is greater than the speed of the first, with the braking element ( 7 ) coupled with the cabinet component and in the third movement phase, the first two movement phases are opposite movement phases, the second braking element ( 12 ) essentially stands still. The relative velocity between the operating surfaces ( 11 ,  15 ) corresponds essentially to the speed of the first braking element ( 7 ) coupled to the cabinet component.  
     
     
         2 . Braking and damping device, according to  claim 1 , is characterized by the transference element that gives and removes force that is a pinion ( 16 ), which rotational axle ( 17 ) is held axially movable and longitudinally movable in the elongated slots ( 3 ,  4 ) of the casing ( 2 ), are parallel to the movement direction of the braking elements ( 7 ,  12 ).  
     
     
         3 . Braking and damping device, according to one of the claims  1  or  2 , is characterized by each braking element ( 7 ,  12 ) has a toothed rack ( 8 ,  13 ) and both toothed racks work together with the pinion ( 16 ).  
     
     
         4 . Braking and damping device, according to one of the  claims 1  to  3 , is characterized by the peripheral speed of the pinion ( 16 ) that is less in the first movement phase than the speed of the braking element ( 7 ) that is coupled with the cabinet component; whereby, the rotational axle ( 17 ) of the pinion moves along the elongated slot ( 3 ,  4 ) in the same direction ( 19 ) as this braking element ( 7 ).  
     
     
         5 . Braking and damping device, according to one of the  claims 1  to  4 , is characterized by the peripheral speed of the pinion ( 16 ) during the second movement phase corresponds essentially to the speed of the braking element ( 7 ) that is coupled to the cabinet component; whereby, the rotational axle ( 17 ) of the pinion does not change its position.  
     
     
         6 . Braking and damping device, according to one of the  claims 1  to  5 , is characterized by the peripheral speed of the pinion ( 16 ) during the third movement phase that corresponds essentially to the speed of the braking element ( 7 ) that is coupled to the cabinet component; whereby, the rotational axle ( 17 ) of the pinion moves along the elongated slots ( 3 ,  4 ) in the same direction ( 20 ) as this braking element ( 7 ).  
     
     
         7 . Braking and damping device, according to one of the  claims 1  to  6 , is characterized by the highly viscous liquid that is put in between the operating surfaces ( 11 ,  15 ).  
     
     
         8 . Braking and damping device, according to one of the  claims 1  to  7 , is characterized by the fact that each braking element ( 7 ,  12 ) has a comb-groove area ( 10 ,  14 ) that forms the operating surfaces ( 11 ,  15 ), which produce the braking action.  
     
     
         9 . Braking and damping device, according to one of the  claims 1  to  8 , is characterized by the fact that the effective length of the comb-groove area ( 10 ) of the first braking element ( 7 ) differs from the effective length of the comb-groove area ( 14 ) of the second braking element ( 12 ).  
     
     
         10 . Braking and damping device, according to one of the  claims 1  to  9 , is characterized by the fact that the first movement phase corresponds to a first braking strength/force, the second movement phase corresponds to a second braking strength/force, and the third movement phase corresponds to a third braking strength/force.  
     
     
         11 . Braking and damping device, according to one of the  claims 1  to  10 , is characterized by the three movement phases that will go in reverse order.