Abstract: A chair is provided which includes a first floor and seat engaging frame member and a second floor and seat engaging frame member pivotally joined to one another to permit collapsing of the chair from an erected seating position to a substantially coextensive position. In addition, the first and second frame members each include a substantially straight bight end portion angled with respect to the respective frame members. Also included is a seat surface-providing member of a shape having a first pocket for engaging and enclosing an extremity of the first bight of the first frame member and at a second end a second pocket for engaging and enclosing an extremity of the second bight of the second frame member. The first and second bight end portions provide the only support for the seat-supporting member.

Abstract: A highchair apparatus for attachment to an elevated member, such as a table or the like. At least a portion of a frame supporting the highchair apparatus engages an upper surface of the elevated member. A clamping member, pivotally attached to the frame pivot housing at a first pivot, engages a lower surface of the elevated member and clamps the highchair apparatus to the elevated member. A cam member, pivotally attached to the frame pivot housing at a second pivot, restrainably secures the highchair apparatus to the elevated member, by engaging the clamping arm upon movement of the cam member from a substantially nonengaging position to a substantially engaging position, causing the clamping member to securely engage the lower surface of the elevated member, and further serving to lock the clamping member in secure engagement with the lower surface of the elevated member.

Abstract: A lock-release mechanism is mounted on the back of a foldable high chair to control relative movement between the chair back and the underlying seat and leg assembly. In use, the bolt-release mechanism can be actuated manually to permit the high chair to be folded from an unfolded use position to a partly folded safety stop position and a fully folded storage position.