Patent ID: 9357843
Filing Date: 2016-06-07
CPC Classification: A47B,F16C

Claim Text:
1. A pull-out guide for furniture parts which can be moved relative to one another, the pull-out guide having at least two pull-out rails, between which at least one first roller body and at least one second roller body are arranged, which roller bodies are rotatably held in at least one roller body cage, wherein the at least one first roller body has a greater nominal diameter and a lower modulus of elasticity than the at least one second roller body, wherein the difference in diameter (Δd) between a first nominal diameter of the first roller body and a second nominal diameter of the second roller body is greater than a lower limit which is at least as great as a production tolerance (Δd1) in the diameter of the first roller body, wherein the lower limit is at least as great as the production tolerance (Δd1) in the diameter of the first roller body plus a production tolerance (Δd2) in the diameter of the second roller body, plus a minimum amount of at least 0.01 mm, wherein an upper limit is provided for the difference in diameter (Δd), wherein the upper limit is dependent on a loading of the pull-out guide, in which the at least one second roller body is subjected to a pressure load, and wherein the upper limit is maximally as great as the sum total of the production tolerance (Δd1) in the diameter of the first roller body and a maximum amount of at most 0.3 mm.