An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An example apparatus includes a bracket having a rack attachment member and a guard attachment member, and upper and lower engagement tabs that are coupled to the rack attachment member and have a stem portion and a head portion. The rack attachment member has a lock pin hole above the lower rack engagement tab. The lock pin hole is sized and positioned to provide sufficient cross-sectional area within a rack engagement distance to allow passage of a bracket lock pin therethrough within the rack engagement distance. The apparatus further includes a bracket lock pin having a stabilizing leg coupled to a lock pin head, where the stabilizing leg fits through the lock pin hole and the lock pin head does not. The stabilizing leg urges the lock pin head toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

Provided is an angle bar for shelf assembly, the angle bar including a vertical frame in which a plurality of fastening grooves is formed and a horizontal frame on which a fastening protrusion is formed, wherein the plurality of fastening grooves, each including upper and lower grooves, are formed, the lower groove has a narrower width than the upper groove, and is connected to the upper groove with an inclination portion in between, wherein the fastening protrusion includes a convex portion having an inclination surface and first and second wing portions that are formed on lateral surfaces, respectively, of the convex portion, and wherein a distance between respective end portions of the first and second wing portions is smaller than a width of the upper groove and is larger than a width of the lower groove, and the convex portion has a wider width than the lower groove.

An article transport facility includes support columns (2) and support beams (5) that are coupled to the support columns (2) and support rails (7). The support beams (5) each include a beam body (50), attachment members (55) for attachment to the support columns (2), and support members (60) that are fixed to the beam body (50) and are for supporting the rails (7). A support beam (5) and a support column (2) are coupled together by locking portions (59) provided on the attachment members (55) being locked to lock receiving portions (21) formed in the support column 2, and by binding with use of first binding members (B1) inserted through first through holes (66) formed in the support members (60).

Provided is an angle bar for shelf assembly, the angle bar including a vertical frame in which a plurality of fastening grooves is formed and a horizontal frame on which a fastening protrusion is formed, wherein the plurality of fastening grooves, each including upper and lower grooves, are formed, the lower groove has a narrower width than the upper groove, and is connected to the upper groove with an inclination portion in between, wherein the fastening protrusion includes a convex portion having an inclination surface and first and second wing portions that are formed on lateral surfaces, respectively, of the convex portion, and wherein a distance between respective end portions of the first and second wing portions is smaller than a width of the upper groove and is larger than a width of the lower groove, and the convex portion has a wider width than the lower groove.

An apparatus including a bracket, an upper rack engagement tab, a lower rack engagement tab; and a lock pin hole. The bracket has a rack attachment member and a guard attachment member. The lock pin hole is defined by the rack attachment member and structured to receive a lock pin having a stabilizing leg coupled to a lock pin head. Each engagement tab is coupled to the rack attachment member. Each engagement tab includes a stem portion coupled to the rack attachment member and a head portion having a greater cross-sectional area than the stem portion. The guard attachment member defines a guard attachment hole positioned at a rack guard spacing distance from the rack attachment member, and the stabilizing leg has a geometry such that the lock pin head is urged toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

An apparatus including a bracket, an upper rack engagement tab, a lower rack engagement tab; and a lock pin hole. The bracket has a rack attachment member and a guard attachment member. The lock pin hole is defined by the rack attachment member and structured to receive a lock pin having a stabilizing leg coupled to a lock pin head. Each engagement tab is coupled to the rack attachment member. Each engagement tab includes a stem portion coupled to the rack attachment member and a head portion having a greater cross-sectional area than the stem portion. The guard attachment member defines a guard attachment hole positioned at a rack guard spacing distance from the rack attachment member, and the stabilizing leg has a geometry such that the lock pin head is urged toward the lock pin hole when the stabilizing leg is passed through the lock pin hole.

The present invention discloses a connecting structure, a connecting method and an article containing the connecting structure. The connecting structure includes a fastener, a first connecting member adjacent to the trailing end of the fastener and a second connecting member away from the trailing end of the fastener. The second connecting member is provided with a threaded connecting hole, which in the axial direction thereof is provided with thread matching with the form of thread of the fastener and having a central angle of at least 180 degrees. The first connecting member is provided with a connecting hole, and the fastener connects the two connecting members through the threaded connecting hole and the connecting hole. The connecting method achieves quick connecting with the connecting hole of the first connecting member by preloading the fastener to the threaded connecting hole, without being affected by the assembly space. The connecting structure and the connecting method can be used in a variety of articles. The thickness of the threaded connecting hole is equal to the pitch of the fastener. The form of thread of the threaded connecting hole is fitted with the thread of the fastener by only one turn, which during processing can be made directly in the form of stamping, resulting in a simple processing and improving the processing efficiency.

An angle bar includes two longitudinal angled plate portions, and a corner portion connecting therebetween. The corner portion has an inner corner surface bounding an inner corner space and an outer corner surface. A stopper protrudes into the indented corner space, and has an abutment face extending across the indented corner space. A limiter protrudes into the indented corner space from the inner corner surface, and has a through hole opening in a direction along a bending line of the corner portion. A modular post assembly has at least two angle bars abutting each other, and a fixing rod extending through the through holes of the bars along the bending line and limited between the stoppers for fixing together the bars.

A flexible shelving unit includes a support frame having at least one vertical guide rack, the guide rack including an elongated slot. The shelf unit is supported by the guide rack. The shelf unit includes a shelf plate framed by a front reinforcement portion and by at least one side reinforcement portion. The shelf unit when in a release position is moved to selected upward and downward locations by vertical displacement of at least one locating pin connected to and extending from the at least one side reinforcement portion which is positioned and sliding within the elongated slot. A flat end face of the at least one side reinforcement portion directly contacts a plate face of the at least one vertical guide rack with the at least one side reinforcement portion and the shelf plate in a horizontal position to frictionally retain the shelf unit in the horizontal position.