Drawer guide

Abstract

A drawer guide is provided, having at least one first guide rail and a second guide rail displaceably guided by means of a roller body arrangement on the first guide rail. The roller body arrangement has at least one ball cage with roller bodies. To provide the drawer guide with both a high load-bearing capacity, a low level of rolling noise, and a low level of rolling resistance, the roller body arrangement may have at least two different types of roller bodies. A roller body of a first type comprises a first material with a first hardness and a roller body of a second type comprises a second material with a second hardness. The first hardness of the first material is lower than the second hardness of the second material, and the roller body of the first type is larger than the roller body of the second type.

1 . Drawer guide, comprising at least one first guide rail and one second guide rail displaceably guided by means of a roller body arrangement on the first guide rail, the roller body arrangement comprising at least one ball cage with roller bodies,
 wherein the roller body arrangement comprises at least two different types of roller bodies, one roller body of a first type comprising a first material with a first hardness and a roller body of a second type comprising a second material with a second hardness,   wherein the first hardness of the first material is lower than the second hardness of the second material and wherein the roller body of the first type is larger than the roller body of the second type.   
     
     
         2 . Drawer guide according to  claim 1 , wherein the roller body of the second type has a diameter, which is at least 1% smaller than the diameter of the roller body of the first type. 
     
     
         3 . Drawer guide according to  claim 1 , wherein the roller body of the first type comprises a plastics material. 
     
     
         4 . Drawer guide according to  claim 3 , wherein the roller body of the first type comprises a thermoplastic material. 
     
     
         5 . Drawer guide according to  claim 3 , wherein the roller body of the first type comprises glass fibres and/or glass balls in addition to the plastics material. 
     
     
         6 . Drawer guide according to  claim 1 , wherein the roller body of the first type comprises a metallic material, which is softer than steel. 
     
     
         7 . Drawer guide according to  claim 6 , wherein the roller body of the first type comprises aluminium, zinc and/or tin. 
     
     
         8 . Drawer guide according to  claim 1 , wherein the roller body of the second type comprises a steel material or a plastics material, which is harder than the first material. 
     
     
         9 . Drawer guide according to  claim 1 , wherein those roller bodies of the roller body arrangement, which adopt the first position or the last position of the roller body arrangement, viewed in the drawer direction, are roller bodies of the first type. 
     
     
         10 . Drawer guide according to  claim 9 , wherein those roller bodies of the roller body arrangement, which adopt the second position or the penultimate position in the roller body arrangement, viewed in the drawer direction, are roller bodies of the first type. 
     
     
         11 . Drawer guide according to  claim 1 , wherein the number of roller bodies of the first type in the roller body arrangement is greater than the number of roller bodies of the second type. 
     
     
         12 . Drawer guide according to  claim 1 , wherein at most two roller bodies of the second type are adjacent to one another in the drawer direction. 
     
     
         13 . Drawer guide according to  claim 1 , wherein the drawer guide is assembled without prestressing or with light prestressing. 
     
     
         14 . Drawer guide according to  claim 1 , wherein at least one ball cage of the drawer guide is provided with at least one stop element, which cooperates with a stopper on one of the guide rails in such a way that the displacement path of the ball cage relative to the guide rail is limited by the stopper. 
     
     
         15 . Drawer guide according to  claim 14 , wherein at least one ball cage of the drawer guide is provided with two stop elements, which cooperate with one respective associated stopper on one of the guide rails in such a way that the displacement path of the ball cage relative to the guide rail is limited by the stoppers both in the drawer direction and counter to the drawer direction.