Folding frame construction

A construction as claimed in any one of the preceding claims, the pivotal connections being made between the side limbs of the various frames in such a way that the frames of each pair nest together in the storage position.

A construction as claimed in any one of the preceding claims in which the frames nest in such a way that the one limb of one frame in each pair lies outside an adjacent limb of the other frame while the other limb of said one frame lies inside an adjacent limb of the other frame.

A construction as claimed in any one of the preceding claims in which each frame is of U-shaped configuration with a cross member interconnecting the side limbs thereof.

A construction as claimed in cliam 7 or 8 in which the frames of each pair may be pivotally connected so that, in the folded condition of the construction, the free ends of each U-shaped frame terminate at a location closer to the associated pivotal connections than the cross-member of the other frame.

A construction as claimed in any one of the preceding claims in which all of the frames of the construction have the substantially the same width dimension between the side limbs thereof.

A construction as claimed in any one of the preceding claims including a device for maintaining the frame construction in its erected condition.

A construction as claimed in any one of the preceding claims in which at least one latch coupling adjacent side limbs of one pair of frames for holding the frame construction in its in-use erected condition, the latch being pivotally connected to one side limb and having a slot therein which receives a pin on the other side limb, the slot having at least one lateral recess for reception of the pin so as to prevent relative pivotal movement between the frames.

A construction as claimed in any one of the preceding claims including at least one additional pair of frames.

A construction as claimed in any one of the preceding claims in which the side limbs of the frames are substantially rectilinear.

A construction as claimed in any one of the preceding claims in which the sides limbs of the frames are substantially curvilinear.

A folding frame construction comprising at least a first pair of frames which are pivotally interconnected for folding about a first axis and which form the lowermost tier when in use, and a second pair of frames which are pivotally interconnected for folding about a second axis generally parallel to the first axis and are pivotally connected to respective frames of the first pair so as to form a second tier during use, each frame comprising a pair of spaced side limbs and the pivotal connections being made between the side limbs of the various frames in such a way that the frames of each pair nest together in the storage position.