Pull-out guide fitting for drawers

Abstract

A pull-out guide fitting for drawers comprising a pull-out rail secured to the drawer and a support rail secured to the body of an article of furniture at both sides of the drawer. Arranged between the rails are carriages in which load-transmitting rolling bodies are mounted. Provided on the rails are stops which limit the travel distance of the rails. In addition there is provided at least one fluid damper which in the limit positions of the travel of the drawer damps the impact of a carriage against a stop of the rails. The fluid damper has a cylinder and a piston which is rotatably or linearly displaceable therein.

1 . A pull-out guide fitting for drawers, comprising a pull-out rail fixed to the drawer, and a support rail fixed to the body of an article of furniture at both sides of the drawer, wherein arranged between the rails are carriages, in which load-transmitting rolling bodies are mounted, and provided on the rails are stops which limit the travel distance of the rails, and wherein there is provided at least one damper which in the limit positions of the travel of the drawer, damps the impact of a carriage against a stop of the rails, and the at least one damper is in the form of a fluid damper having a cylinder and a piston.  
     
     
         2 . A pull-out guide fitting according to claim I wherein the fluid damper is in the form of a linear damper with a piston which is linearly displaceable in the cylinder which is partially or completely filled with a damping fluid.  
     
     
         3 . A pull-out guide fitting according to claim I wherein the fluid damper is in the form of a rotary damper having a rotary piston mounted in a housing which is at least partially filled with the damping fluid.  
     
     
         4 . A pull-out guide fitting according to claim I wherein the fluid damper is in the form of an air damper.  
     
     
         5 . A pull-out guide fitting according to  claim 1  wherein the fluid damper is in the form of a liquid damper.  
     
     
         6 . A pull-out guide fitting according to claim I wherein a respective fluid damper is arranged at each of the two ends of at least one carriage.  
     
     
         7 . A pull-out guide fitting according to  claim 6  wherein the pistons of the fluid dampers are provided with piston rods which in the limit positions of the extension travel of the drawer bear against the stops of the rails.  
     
     
         8 . A pull-out guide fitting according to  claim 1  wherein at least one carriage is of a multi-part nature and a fluid damper is arranged between the portions of the carriage.  
     
     
         9 . A pull-out guide fitting according to  claim 8  wherein at least one carriage is of a two-part nature and a fluid damper is arranged between the two portions of the carriage.  
     
     
         10 . A pull-out guide fitting according to  claim 8  wherein the portions of the carriage have guides and are telescopically displaceable relative to each other.  
     
     
         11 . A pull-out guide fitting according to  claim 5  wherein the fluid dampers are arranged at the stops of the rails.  
     
     
         12 . A pull-out guide fitting according to  claim 8  wherein arranged in one of the portions of the carriage is a rotary damper having a drive pinion meshing with a rack profile of the second portion of the carriage.  
     
     
         13 . A pull-out guide fitting according to  claim 8  wherein a compression spring is arranged between the portions of the carriage.  
     
     
         14 . A pull-out guide fitting according to  claim 13  wherein the compression spring is integrated into the fluid damper.  
     
     
         15 . A pull-out guide fitting according to  claim 8  wherein two portions of a carriage are connected together by way of at least one coupling portion provided with a fluid damper.  
     
     
         16 . A pull-out guide fitting according to  claim 5  wherein at least one coupling portion comprises two parts which are telescopically displaceable relative to each other.  
     
     
         17 . A pull-out guide fitting according to  claim 16  wherein a spring is arranged between the two parts.  
     
     
         18 . A pull-out guide fitting according to  claim 16  wherein a linear piston is fixed or provided on one of the parts, the linear piston projecting into a cylindrical cavity in the second part.  
     
     
         19 . A pull-out guide fitting according to  claim 16  wherein mounted in one of the parts is a fluid damper which is in the form of a rotational damper and which is provided with a pinion meshing with a rack profile of the second part.  
     
     
         20 . A pull-out guide fitting according to  claim 1 , wherein an intermediate rail is situated between the support rail and the pull-out rail.  
     
     
         21 . A pull-out guide fitting according to  claim 3 , wherein the housing is completely filled with the damping fluid.  
     
     
         22 . A pull-out guide fitting according to  claim 17 , wherein the spring is a compression spring.  
     
     
         23 . A pull-out guide fitting according to  claim 9  wherein the portions of the carriage have guides and are telescopically displaceable relative to each other.