A mounting apparatus using a sliding mechanism for easy insertion and removal of insertable units includes a supporting bracket and a sliding mechanism. The sliding mechanism includes an outer rail, a middle rail, an inner rail, a latching unit, and a locking unit. The latching unit includes first and second guiding portions on the inner rail, first and second positioning members slidably mounted to the middle rail, and third and second guiding portions on the outer rail. The locking unit includes a locking member at end of the inner rail and a locking portion on the middle rail to correspond to the locking member.

A mounting apparatus using a sliding mechanism for easy insertion and removal of insertable units includes a supporting bracket and a sliding mechanism. The sliding mechanism includes an outer rail, a middle rail, an inner rail, a latching unit, and a locking unit. The latching unit includes first and second guiding portions on the inner rail, first and second positioning members slidably mounted to the middle rail, and third and second guiding portions on the outer rail. The locking unit includes a locking member at end of the inner rail and a locking portion on the middle rail to correspond to the locking member.

A slide rail assembly includes a first rail, a second rail, a blocking member, and an operating member. The rails are displaceable with respect to each other. The blocking member is coupled to the first rail. The operating member can enter a predetermined state with respect to the second rail. When the second rail is at a predetermined position with respect to the first rail, the operating member is in the predetermined state and blocked by the blocking member to prevent the second rail from displacement from the predetermined position in a predetermined direction. When the operating member is not in the predetermined state and hence not blocked by the blocking member, the second rail can be displaced from the predetermined position in the predetermined direction.

A slide rail assembly includes a first rail, a second rail, a blocking member, and an operating member. The rails are displaceable with respect to each other. The blocking member is coupled to the first rail. The operating member can enter a predetermined state with respect to the second rail. When the second rail is at a predetermined position with respect to the first rail, the operating member is in the predetermined state and blocked by the blocking member to prevent the second rail from displacement from the predetermined position in a predetermined direction. When the operating member is not in the predetermined state and hence not blocked by the blocking member, the second rail can be displaced from the predetermined position in the predetermined direction.

A drawer slide having first and second rails interconnected by a center rail. The center rail includes a spool configured to provide half-speed travel of the center rail relative to the travel of the first rail. The drawer slide is configured for use with a drawer assembly having a drawer and a chassis. The drawer assembly further includes a radius limiter secured to the center rail. The radius limiter travels at half-speed relative to the drawer. The radius limiter also automatically rotates relative to the travel of the drawer. The chassis includes sides including threaded backing plates, and mounting brackets. The mounting brackets include tri-lobed holes for receipt of a reciprocally shaped washer and a fastener for mounting the brackets to the chassis sides.

A drawer slide having first and second rails interconnected by a center rail. The center rail includes a spool configured to provide half-speed travel of the center rail relative to the travel of the first rail. The drawer slide is configured for use with a drawer assembly having a drawer and a chassis. The drawer assembly further includes a radius limiter secured to the center rail. The radius limiter travels at half-speed relative to the drawer. The radius limiter also automatically rotates relative to the travel of the drawer. The chassis includes sides including threaded backing plates, and mounting brackets. The mounting brackets include tri-lobed holes for receipt of a reciprocally shaped washer and a fastener for mounting the brackets to the chassis sides.

A refrigerator includes a cabinet that defines a storage chamber, an upper door that is configured to open and close an upper portion of the storage chamber by being drawn in and out, a lower door that is positioned below the upper door and that is configured to open and close a lower portion of the storage chamber by being drawn in and out, an upper door restriction unit that is configured to selectively restrict the upper door from being opened, and a lower door restriction unit that is configured to selectively restrict the lower door from being opened. The upper door restriction unit is configured, based on the lower door being opened, to restrict the upper door from opening, and the lower door restriction unit is configured, based on the upper door being opened, to restrict the lower door from opening.

A refrigerator includes a cabinet defining a storage chamber, a drawer door, a rail assembly that slidably couples the drawer door to the cabinet, a driving device disposed at the door part, and an elevation device disposed at the drawer part to vertically elevate at least a portion of the drawer part. The driving device includes a motor assembly, a pair of screw units, and a pair of levers, each of the pair of levers being coupled to and configured to be rotated by a corresponding one of the pair of screw units to elevate the elevation device. The drawer door includes a door part configured to open and close the storage chamber and a drawer part that is configured to be inserted into and withdrawn out of the storage chamber and defines a storage space.

A refrigerator includes a cabinet defining a storage chamber, a drawer door, a rail assembly that slidably couples the drawer door to the cabinet, a driving device disposed at the door part, and an elevation device disposed at the drawer part to vertically elevate at least a portion of the drawer part. The driving device includes a motor assembly, a pair of screw units, and a pair of levers, each of the pair of levers being coupled to and configured to be rotated by a corresponding one of the pair of screw units to elevate the elevation device. The drawer door includes a door part configured to open and close the storage chamber and a drawer part that is configured to be inserted into and withdrawn out of the storage chamber and defines a storage space.

A fiber optic cross connect system comprising a case defining a tray receiving space and at least one tray slideable in and out of the space between a first closed position, a second intermediate position and a third open or accessible position and a sliding engagement between a sidewall of the case and a side edge of the tray is disclosed. The sliding engagement comprises an elongate link member which is stationary as the tray is moved between the first closed position and the second intermediate position and moves with the tray as the tray is moved between the second intermediate and the third open position and such that the elongate link member does not interfere with fiber optic cables which are interconnecting external devices with devices on the tray. In a particular embodiment the link member is held stationary by a releasable locking mechanism.