A chair includes a frame for supporting a seat and a backrest. The frame is provided with legs for resting on the ground. The chair includes the seat and the backrest. At least the backrest is fixed to the frame by virtue of interlocking elements.

A foldable chair includes a seat plate, two X-shaped supporting frames symmetrically, and two sliding connecting members, each of the two X-shaped supporting frames includes a front leg and a rear leg pivotally connected together, the front leg and the rear leg are located outside of the seat plate, the rear leg is disposed between a side edge of the seat plate and the front leg, an upper end of the rear leg is pivotally connected to a front position of the side edge of the seat plate, each of the two sliding connecting members includes a sliding part, a fixed part, and a positioning plate, and the positioning plate is located on a rear side of the front leg, so that the rear leg is configured to abut the positioning plate and align with the front leg in a left-and-right direction after the foldable chair is folded.

A foldable chair includes a seat plate, two X-shaped supporting frames symmetrically, and two sliding connecting members, each of the two X-shaped supporting frames includes a front leg and a rear leg pivotally connected together, the front leg and the rear leg are located outside of the seat plate, the rear leg is disposed between a side edge of the seat plate and the front leg, an upper end of the rear leg is pivotally connected to a front position of the side edge of the seat plate, each of the two sliding connecting members includes a sliding part, a fixed part, and a positioning plate, and the positioning plate is located on a rear side of the front leg, so that the rear leg is configured to abut the positioning plate and align with the front leg in a left-and-right direction after the foldable chair is folded.

A seat assembly includes a fabric component with a seat surface and with an interior segment directly attached to the fabric component. The interior segment extends from an exterior segment that has a greater flexural resistance than the interior segment.

A seat assembly includes a fabric component with a seat surface and with an interior segment directly attached to the fabric component. The interior segment extends from an exterior segment that has a greater flexural resistance than the interior segment.

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 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 chair comprises: two side frames, each of the two side frames comprising a front supporting leg and a rear supporting leg; a seat portion fixed between the two side frames; and a backrest portion connected to the rear supporting legs of the two side frames via a plug structure.

A chair comprises: two side frames, each of the two side frames comprising a front supporting leg and a rear supporting leg; a seat portion fixed between the two side frames; and a backrest portion connected to the rear supporting legs of the two side frames via a plug structure.

A bench top for a bench seat includes mounting elements for coupling to sides of bench seat members and a seat unit. The seat unit includes: a seating top; front and back members extending generally away from the seating top; ribs extending inwardly from the front and back members that, together with a front lip and a back lip, provide front and back pockets for receiving respective mounting elements therein; and joining elements at opposing sides of the seat unit for cooperating with joining elements of adjacent units. The seat unit is resilient to move the front and back lips away from each other for installation over the mounting elements and to return to a less flexed state as the front and back lips move toward each other when the mounting elements are received in the front and back pockets.