Slide rail assembly

A slide rail assembly, comprising:

• a first rail formed with a passage;
• a second rail;
• and
• a slide assisting device located inside the passage of the first rail, wherein the slide assisting device comprises a first side part, a second side part and a longitudinal part connected between the first side part and the second side part, wherein the slide assisting device further comprises a plurality of rolling members arranged on the first side part and the second side part, and a predetermined feature protruded from the longitudinal part;
• wherein one of the first rail and the slide assisting device is arranged with an elastic member having a first engaging feature, the other one of the first rail and the slide assisting device is arranged with a second engaging feature, and the first engaging feature and the second engaging feature are configured to be engaged with each other in order to prevent the slide assisting device from being moved from a first predetermined position along a retracting direction;
• wherein the second rail comprises an auxiliary part and a driving part;
• wherein when the second rail is inserted into the passage of the first rail from outside of the passage of the first rail along the retracting direction, the second rail is configured to contact the elastic member through the auxiliary part, in order to move the elastic member to switch from a first state to a second state, so as to disengage the first engaging feature and the second engaging feature from each other;
• and when the second rail is further moved along the retracting direction, the driving part is configured to contact the protruded predetermined feature on the slide assisting device, in order to drive the slide assisting device to move with the second rail along the retracting direction to be away from the first predetermined position;
• wherein the slide rail assembly further comprises a third rail, and the first rail is movably mounted between the third rail and the second rail;
• wherein the slide rail assembly further comprises a working member arranged on the first rail, and a predetermined structure is arranged on the second rail;
• during a process of the second rail being moved relative to the first rail from a retracted position along an opening direction, the working member and the predetermined structure are configured to be engaged with each other, such that the first rail is configured to be synchronously moved with the second rail relative to the third rail along the opening direction.

A slide rail assembly, comprising:

• a first rail formed with a passage;
• a second rail;
• and
• a slide assisting device located inside the passage of the first rail;
• wherein one of the first rail and the slide assisting device is arranged with an elastic member having a first engaging feature, the other one of the first rail and the slide assisting device is arranged with a second engaging feature, and the first engaging feature and the second engaging feature are configured to be engaged with each other in order to prevent the slide assisting device from being moved from a first predetermined position along a retracting direction;
• wherein the second rail comprises an auxiliary part and a driving part;
• wherein when the second rail is inserted into the passage of the first rail from outside of the passage of the first rail along the retracting direction, the second rail is configured to contact the elastic member through the auxiliary part, in order to move the elastic member to switch from a first state to a second state, so as to disengage the first engaging feature and the second engaging feature from each other;
• and when the second rail is further moved along the retracting direction, the driving part is configured to contact a predetermined feature on the slide assisting device, in order to drive the slide assisting device to move away from the first predetermined position along the retracting direction;
• wherein the slide rail assembly further comprises a third rail, and the first rail is movably mounted between the third rail and the second rail;
• wherein the slide rail assembly further comprises a working member arranged on the first rail, and a predetermined structure is arranged on the second rail;
• during a process of the second rail being moved relative to the first rail from a retracted position along an opening direction, the working member and the predetermined structure are configured to be engaged with each other, such that the first rail is configured to be synchronously moved with the second rail relative to the third rail along the opening direction;
• wherein the third rail is an outer rail, the first rail is a middle rail, and the second rail is an inner rail;
• wherein the working member is pivotally connected to the first rail through a shaft member, and the working member comprises a working part;
• wherein the predetermined structure is formed with a space configured to accommodate the working part of the working member.