A slide rail assembly is provided and includes a first rail, a second rail, an aiding-slide device and an auxiliary member. The aiding-slide device is movably mounted between the first rail and the second rail. The auxiliary member is arranged on the first rail. When the second rail is detached from a channel of the first rail, a first predetermined feature of the aiding-slide device is engaged with a second predetermined feature on a resilient arm of the auxiliary member for retaining the aiding-slide device at a predetermined position. When the second rail is inserted into the channel of the first rail, the second rail abuts against the resilient arm by a working portion, such that the second predetermined feature of the resilient arm is disengaged from the first predetermined feature of the aiding-slide device.

The invention relates to an extension guide (1) for mounting a movable furniture part linearly movably along an extension direction (2), comprising a carcass rail (10) which can be fixed to a furniture carcass, a drawer rail (50) which can be fixed to the movable furniture part, and a linearly movable center rail (30) arranged between the carcass rail (10) and the drawer rail (50), at least one load-transmitting inner carriage (20) arranged between the carcass rail (10) and the center rail (30) and at least one load-transmitting outer carriage (40) arranged between the center rail (30) and the drawer rail (50). The extension guide 1 can be easily and cost-effectively adapted to different rail lengths in that that the inner carriage (20) and/or the outer carriage 40 is/are formed of a plurality of segments (21, 24, 40.1, 41, 42) which are connected to one another, preferably detachably connected.

A slide rail assembly is provided and includes a first rail, a second rail, an aiding-slide device and an auxiliary member. The aiding-slide device is movably mounted between the first rail and the second rail. The auxiliary member is arranged on the first rail. When the second rail is detached from a channel of the first rail, a first predetermined feature of the aiding-slide device is engaged with a second predetermined feature on a resilient arm of the auxiliary member for retaining the aiding-slide device at a predetermined position. When the second rail is inserted into the channel of the first rail, the second rail abuts against the resilient arm by a working portion, such that the second predetermined feature of the resilient arm is disengaged from the first predetermined feature of the aiding-slide device.

The invention relates to a differential pull-out guide (1) for pull-out furniture parts, having a body rail (3) that can be attached to a furniture body, a pull-out rail (4) that can be attached to a pull-out furniture part and a middle rail (5) arranged between the body rail (3) and the pull-out rail (4) in accordance with claim 1, characterised in that a lateral guide roller (13) of the middle rail (5) is arranged in the pull-out path (14) on the middle rail (5) in such a way that it is in contact with a rear end region (16) of the pull-out rail (4) in the open position.