A rack includes: a casing; M (an integer not less than three) pairs of supports that are provided inside the casing so as to extend in a depth direction and arrayed at regular intervals in a predetermined direction (a height direction or a left-right direction); and a lock mechanism. The rack can house all returnable containers of one or more prespecified sizes along the respective pairs of supports. The lock mechanism includes N (an integer not less than two and meeting N<M≤2.sup.N−1) shafts that are movable in the predetermined direction. Branches are provided on the shafts such that a combination of engagement and disengagement between the branches and holes provided in protrusions of the returnable container is different in each of the returnable containers housed on the respective M pairs of supports.

A telescopic slide rail support pulley structure includes a first rail provided with multiple mounting holes and a first rolling carriage, a second rail include notch, a positioning hole and a second rolling carriage, a support pulley assembly provided with an upper roller, a lower roller, a support holder and a connecting portion, and a third rail. The connecting portion of the support pulley assembly is mounted to the notch of the second rail. The support pulley assembly also has an upper roller groove and a lower roller groove. The upper roller is arranged in the upper roller groove. The lower roller is arranged in the lower roller groove. The third rail is connected to the second rail through the second rolling carriage. The second rail is connected to the first rail through the first rolling carriage.

A telescopic slide rail support pulley structure includes a first rail provided with multiple mounting holes and a first rolling carriage, a second rail include notch, a positioning hole and a second rolling carriage, a support pulley assembly provided with an upper roller, a lower roller, a support holder and a connecting portion, and a third rail. The connecting portion of the support pulley assembly is mounted to the notch of the second rail. The support pulley assembly also has an upper roller groove and a lower roller groove. The upper roller is arranged in the upper roller groove. The lower roller is arranged in the lower roller groove. The third rail is connected to the second rail through the second rolling carriage. The second rail is connected to the first rail through the first rolling carriage.

The present invention provides for a complete ironing center to be attached to and stored within a wall cabinet. The ironing board is deployed perpendicularly from the back wall of the cabinet. In one embodiment, the cabinet is integrated into a larger wall cabinet system. In these embodiments, the cabinet is extended from the wall cabinet and locked into an open position. This complete system is easily and quickly closed and stored out of sight within the cabinet when not in use.

The present invention provides for a complete ironing center to be attached to and stored within a wall cabinet. The ironing board is deployed perpendicularly from the back wall of the cabinet. In one embodiment, the cabinet is integrated into a larger wall cabinet system. In these embodiments, the cabinet is extended from the wall cabinet and locked into an open position. This complete system is easily and quickly closed and stored out of sight within the cabinet when not in use.

A roller assembly includes a roller having an axial hole and an axle portion disposed in the axial hole to allow the roller to rotate about the axle portion; a sleeve with a first end disposed at a first end of the axle portion and a second end having a fitting portion, the fitting portion being fitted to a carried object, the sleeve has a first blocking portion positioned proximate to a first side of the roller to allow the roller to rotate between the first blocking portion and the fitting portion, wherein one of the axle portion, the axial hole and the first blocking portion has a substance conducive to reduction of friction between the roller and the sleeve.

Disclosed is an electronic device of a slide type and including a main body, a guide rail coupled with the main body and configured to enable rotational movement, a driving device coupled with the main body and configured to control the rotational movement of the guide rail, a guide structure coupled with the main body, a slide body; and a connector structure coupled with the slide body, wherein the connector structure is coupled with the guide rail to linearly move according to the rotational movement, wherein the slide body is flexibly disposed in a designated area according to the linear movement of the connector structure, and wherein one surface of the connector structure and one surface of the guide structure are configured to form an electrical connection.

Disclosed is an electronic device of a slide type and including a main body, a guide rail coupled with the main body and configured to enable rotational movement, a driving device coupled with the main body and configured to control the rotational movement of the guide rail, a guide structure coupled with the main body, a slide body; and a connector structure coupled with the slide body, wherein the connector structure is coupled with the guide rail to linearly move according to the rotational movement, wherein the slide body is flexibly disposed in a designated area according to the linear movement of the connector structure, and wherein one surface of the connector structure and one surface of the guide structure are configured to form an electrical connection.

A drawer pull-out guide includes a first guide rail, a second guide rail displaceably supported relative to one another, and a running carriage having load-transmitting rolling bodies displaceably arranged between the first guide rail and the second guide rail. The running carriage includes at least two rolling bodies rotatable about a rotational axis, and the at least two rolling bodies—in a view onto a plane perpendicular to a longitudinal direction of the guide rails—are arranged so as to be laterally offset to one another. Each of the at least two rolling bodies has a cylindrical form and is rotationally supported about a horizontally extending rotational axis in a mounted position of the drawer pull-out guide, the rotational axes of the at least two rolling bodies are arranged in the same running plane, and the at least two rolling bodies have the same diameter.

A server chassis includes an outer case including a plurality of outer shells and an insertion space. The outer shell has an inner wall, and an outer rail structure is disposed on the inner wall of the outer shell. The outer rail structures including an outer rail-plate, an outer-rail and a set of ball slide rail. A chassis body is slidably coupled to the insertion space. The chassis body includes inner shells and an accommodating space. An inner rail structure includes an inner rail-plate, and the chassis body is capable of sliding with respect to the outer case through the inner rail-plate inserted in the outer-rail.