A locking device is adapted for a first object and a second object that are movable with respect to each other. The locking device includes a first element and a second element. The first element can be in a locking state or an unlocking state. The second element drives the first element and thereby moves the first element from the locking state to the unlocking state in response to the second object being displaced with respect to the first object from a retracted position to a predetermined position in an opening direction.

A synchronizing and locking mechanism of a server slide rail includes a middle rail installing structure, an operating plate, an outer rail locking structure and an inner rail synchronous locking structure. The middle rail installing structure is formed on the middle rail and includes an installing part and a through hole. The operating plate is installed to the installing part and has first and second elastic plates, and the first elastic plate has a middle/outer rail locking stop point, an inner rail releasing outer rail locking hook and a pull operation part, and the second elastic plate has an inner/middle rail synchronous stop point and a jack-up part. The outer rail locking structure is installed to the outer rail and includes an outer rail locking hole. The inner rail synchronous locking structure is installed to the inner rail and includes an inner rail locking hole and a synchronous hook.

A drawer release is described. The drawer release includes a handle portion pivotally or rotatably engaged to a fixed portion, and the fixed portion is attached to or connected to a drawer. The handle portion includes at least one engaging member that engages a lever or actuator of a drawer-slide of the drawer to open or release the drawer. The drawer release provides for the one-handed opening of the drawer.

A drawer release is described. The drawer release includes a handle portion pivotally or rotatably engaged to a fixed portion, and the fixed portion is attached to or connected to a drawer. The handle portion includes at least one engaging member that engages a lever or actuator of a drawer-slide of the drawer to open or release the drawer. The drawer release provides for the one-handed opening of the drawer.

A slide rail assembly includes a first rail, a second rail, and a third rail. The first rail includes a supporting feature. The second rail can be displaced with respect to the first rail. The third rail is movably disposed between the first rail and the second rail. When the slide rail assembly is in a predetermined state, the supporting feature protrudes beyond an end portion of the third rail by a predetermined distance and supports the second rail.

A drawer release is described. The drawer release includes a handle portion pivotally or rotatably engaged to a fixed portion, and the fixed portion is attached to or connected to a drawer. The handle portion includes at least one engaging member that engages a lever or actuator of a drawer-slide of the drawer to open or release the drawer. The drawer release provides for the one-handed opening of the drawer.

A shelving system includes first and second side members. A cross member is coupled to the side members. A guide member is coupled to the cross member such that the guide member is movable relative to the cross member. A container including a rail is coupled to the guide member. The rail includes a first locking element and a second locking element that is connected to the first locking element. The container includes a handle having a third locking element that engages the first locking element. The locking elements are configured to move the container between a first orientation in which the container is provisionally fixed to the guide member and a second orientation in which the container can translate relative to the guide member.

A shelving system includes first and second side members. A cross member is coupled to the side members. A guide member is coupled to the cross member such that the guide member is movable relative to the cross member. A container including a rail is coupled to the guide member. The rail includes a first locking element and a second locking element that is connected to the first locking element. The container includes a handle having a third locking element that engages the first locking element. The locking elements are configured to move the container between a first orientation in which the container is provisionally fixed to the guide member and a second orientation in which the container can translate relative to the guide member.

A slide rail assembly has a slide rail kit that includes a slide rail, a component, and an operation member. The slide rail includes a longitudinal wall. The component is movably disposed on the slide rail. The operation member can be used to operate the component and includes a driving portion with a first section and a second section connected to the first section. The first section and the second section have a first transverse height and a second transverse height with respect to the longitudinal wall of the slide rail respectively. The second transverse height is greater than the first transverse height. The first section and the longitudinal wall support each other to keep the second section at the second transverse height.

A slide rail assembly has a slide rail kit that includes a slide rail, a component, and an operation member. The slide rail includes a longitudinal wall. The component is movably disposed on the slide rail. The operation member can be used to operate the component and includes a driving portion with a first section and a second section connected to the first section. The first section and the second section have a first transverse height and a second transverse height with respect to the longitudinal wall of the slide rail respectively. The second transverse height is greater than the first transverse height. The first section and the longitudinal wall support each other to keep the second section at the second transverse height.