Provided is a reinforcement beam for horizontal frames, the reinforcement beam being configured to be used in a prefabricated shelf that is fabricated with vertical frames and horizontal frames, the horizontal frames including a connection portion fastened to the vertical frames at end portions of the connection portion, and an abutment portion which is formed by folding the connection portion such that the abutment portion is formed integrally with the connection portion and which supports a support plate. The reinforcement beam for the horizontal frames includes a body portion in which a pulling portion configured to support a lower outer surface of the connection portion is provided on each of opposite ends of the body portion. The reinforcement beam for the horizontal frames prevents the horizontal frames from collapsing under a large load.

A combined type shelf includes column assemblies, first horizontal constraint assemblies, second horizontal constraint assemblies and storage layers. The column assembly includes assembly holes. The first horizontal constraint assembly has a first horizontal-constraint connecting fastener including horizontal-constraint hanging structures and rivets. The horizontal-constraint hanging structure engages the assembly hole to connect the first horizontal constraint assembly to a front or rear side of the column assembly. The second horizontal constraint assembly includes a horizontal-constraint hole to engage the rivet so as to connect the second horizontal constraint assembly to a left-hand or right-hand side of the column assembly. In addition, the storage layers are disposed between these column assemblies.

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.

A shelf support beam for use in a shelving unit to support a shelf. The support beam includes a first end and a second end located at opposite longitudinal ends of the shelf support beam between which a structural member extends. The structural member has a C-shaped cross-section and includes a web separating a top flange that is configured to support the shelf from a bottom flange. The support beam further includes a tab located at each of the first and second ends of the structural member. Each tab includes a pair of securing fingers that are angled relative to a plane disposed perpendicular to a longitudinal axis of the shelf support beam such that each securing finger is angled inwardly toward a center of the structural member. The support beam further includes an enforcement tab formed in the web at each of the first and second ends of the structural member.

A shelf support beam for use in a shelving unit to support a shelf. The support beam includes a first end and a second end located at opposite longitudinal ends of the shelf support beam between which a structural member extends. The structural member has a C-shaped cross-section and includes a web separating a top flange that is configured to support the shelf from a bottom flange. The support beam further includes a tab located at each of the first and second ends of the structural member. Each tab includes a pair of securing fingers that are angled relative to a plane disposed perpendicular to a longitudinal axis of the shelf support beam such that each securing finger is angled inwardly toward a center of the structural member. The support beam further includes an enforcement tab formed in the web at each of the first and second ends of the structural member.

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.

Disclosed is a utility rack system that includes shelves having a first end, a second end, and a pair of end supports. Each of the pair of end supports is configured to support either the first end or the second end of the one or more elongated shelves. Each of the pair of end supports includes a first vertical member and a second vertical member, an upper cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member, and a lower cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member. The utility rack system also includes a diagonal support having a sliding lock mechanism coupling a first end of the diagonal support to the first vertical member.

Disclosed is a utility rack system that includes shelves having a first end, a second end, and a pair of end supports. Each of the pair of end supports is configured to support either the first end or the second end of the one or more elongated shelves. Each of the pair of end supports includes a first vertical member and a second vertical member, an upper cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member, and a lower cross member pivotally coupled at a first end to the first vertical member and pivotally coupled at a second end to the second vertical member. The utility rack system also includes a diagonal support having a sliding lock mechanism coupling a first end of the diagonal support to the first vertical member.

A fixture member includes: a pillar having a substantially horizontal sectional shape that is a U-shape; a plurality of chip portions fixed in the pillar; and an opening formed by a lower surface of one chip portion, an upper surface of another chip portion, and opposed inner side surfaces of the pillar. A support member is detachably attached to the opening. A receiving member is fixed to the support member. The chip portion has an upper slope surface, a first horizontal surface, and a lower slope surface. The support member has: a first contact surface to contact with the lower slope surface; a second contact surface to contact with the upper slope surface; a third contact surface to contact with the first horizontal surface; and a fourth contact surface and a fifth contact surface to contact with the opposed inner side surfaces of the fixture member.

The invention relates to system for the mounting of shelves on a substantially rectangular load carrier having four identical columns arranged in the corners thereof. The system comprises columns having a rectangular profile with four side faces, a substantially rectangular shelf of a length which is shorter than the distance between the columns of the load carrier, on which shelf a holder is mounted that can be inserted into complementary slots in the columns of the load carrier, said slots being configured with a support face with which the holder is capable of engaging in such a manner that the holder supports on the column. The columns as such are configured with slots that extend symmetrically about a longitudinally extending center axis of one of the side faces and through the side faces adjacent to that side face. The slots are each separately configured with three substantially identical cut-outs, the one of which is situated in the axis of symmetry and the two remaining ones are in the adjacent side faces. The cut-outs are function as support faces for the holders of the shelf, them being arranged on the shorter sides of the shelf and extending in the longitudinal direction of the shelf to the effect that they are capable of engaging with the slots in the four columns arranged on the load carrier.