A thermoplastic homogenous tray table assembly includes a top cover and a bottom cover. An injection molded thermoplastic composite reinforced frame assembly with a plurality of compliant press-fit device receptacle apertures is homogenously chemically bonded to the top cover, and a similar frame is formed for the bottom cover. The cover frame assemblies includes a plurality of integral precision recessed alignment features, mate-able to extended precision alignment features of the opposing cover frame assembly. A thermoplastic homogeneous bottom cover is joined, via press fitting, to the top cover utilizing a plurality of compliant press-fit assembly device members.

The disclosure relates to a method for manufacturing a tray table containing plant fiber and a tray table made therefrom. The manufacturing method comprises: a) homogenizing a halogen-free flame retardant to obtain a homogeneous halogen-free flame retardant; b) melting a thermoplastic resin and uniformly blending the molten thermoplastic resin with a plant fiber, the homogeneous halogen-free flame retardant, and a compatibilizer to obtain a plant fiber composite material; c) extruding and granulating the plant fiber composite material to obtain a granular composite material; and d) mixing the granular composite material with a foaming agent and injection molding to obtain the tray table. The tray table manufactured according to the method herein is green and environmentally friendly, non-toxic and harmless, and also has high flame-retardant effect and weight reduction effect.

A banquet table includes a reinforcing tabletop frame and a supporting frame. The reinforcing tabletop frame includes a reinforcing tabletop panel, which is made of mold-injected material, having two surrounding rims extended along two longitudinal sides of the reinforcing tabletop panel respectively, and a plurality of reinforcing arrangements spacedly embedded in the surrounding rims of the reinforcing tabletop panel respectively. The supporting frame includes two runners attached along the surrounding rims of the reinforcing tabletop panel via the reinforcing arrangements, and two leg frame pivotally attached at a bottom side of the reinforcing tabletop panel.

A blow-molded plastic frame of a portable collapsible sign includes a first outer portion, a second outer portion spaced apart from the first outer portion, and a pattern of structural stiffening features formed in the first and second outer portions. The pattern comprises rows and columns of first depressions extending from the first outer portion into a hollow interior portion between the first and second outer portions, and rows and columns of second depressions extending from the second outer portion into the hollow interior portion. Each first depression has a first floor comprising three first arms having rotational symmetry. Each first arm is rotated from another first arm by 120 degrees. Each second depression has a second floor comprising three second arms having rotational symmetry. Each second arm is rotated from another second arm by 120 degrees. The first floor of each first depression is aligned with the second floor of an adjacent second depression.

A folding table including first and second solid core sections joined together at facing edges thereof, with the sections being formed through an injection molding process of a thermosetting resin.

A blow-molded structural panel has a stiffening rib structure in which the height and width of the rib structure varies over its length. For example, the rib structure may have three tall portions separated by two short portions, with a gradual slope in height between the various portions. The rib structure is preferably wider in the short portions than it is in the tall portions. The lower height of the rib structure in some portions enhances the stiffness of the panel, while also using less material because the plastic does not have to be drawn so deeply into the mold in the short portions.

A plastic molded lip structure may extend along a perimeter of a planar element and may include an outer wall, an inner wall, structural portions, and protruded features. The outer wall may extend in a normal direction from the planar element. The inner wall may be disposed in an inward direction relative to the outer wall. The structural portions may be disposed along structural sections of the perimeter and may include first portions of the inner wall and of the outer wall. The first portions may be disposed parallel to the inner wall and separated from the first portions by a first distance along the structural sections. The protruded features may be interposed between two structural portions and an inner wall may be separated from second portions of the outer wall by a second distance that is greater than the first distance.

A structure, such as a tabletop, may be constructed from blow-molded plastic. The tabletop may include an upper surface, a lower surface, and a hollow interior portion disposed between the upper surface and the lower surface. A lip may extend downwardly relative to the lower surface of the tabletop, and the lip including an outer surface and an inner surface. One or more supports may be disposed in the inner surface of the lip, and one or more joints may be disposed in the inner surface of the lip. A joint may be disposed between adjacent supports, and a distal portion of the lip may include a compression edge. A lower portion of the supports may contact the compression edge, and/or a lower portion of the joints may contact the compression edge.

A hinge mechanism includes a resin base member, and a support rotatably and pivotally mounted to the base member. The base member is formed by blow molding so as to be hollowed. The base member integrally includes a hinge member for rotatably and pivotally mounting the support to the base member. The hinge member is set in a molding die for clamping at the time of the blow molding of the base member, so as to be molded integrally with the base member.

Filament winding or another technique can be used to create composite parts having various layers of pigmented fibers. The composite parts can then be milled to form one or more flat surfaces on the composite part. Due to the layering of pigmented fibers, the flat surfaces can have a pattern that resembles wood grain or another pattern. These milled composite parts can then be used as components for furniture or other items.