Chair for reinforcement rod

DETAILED DESCRIPTION An object of this invention is to provide a universal chair for supporting reinforcement rods, which provides different supporting heights and which can space the reinforcement rods from each other or from the floor at different distances.
Another object of this invention is to provide a universal chair for supporting concrete reinforcement rods, which can be used for fabricating different concrete constructions, thereby eliminating the work of selecting suitable chairs and reducing time-consumption.
According to the present invention, a chair for concrete reinforcing rods comprises a body having an intermediate portion which includes two substantially planar transverse frame members spaced apart from one another, each of the transverse frame members having two opposite ends and, at least one pair of substantially parallel first connecting members interconnecting the planar transverse frame members.
The connecting members and the planar transverse frame members confine two channel-like first seats near the opposite ends of the planar transverse frame members.
Two pairs of first leg members extend outwardly from one of the transverse frame members, the first leg members and the one transverse frame member confine a channel-like second support seat.
Two pairs of second leg members extend outwardly from the other one of the transverse frame members, The second leg members and the other transverse frame member confine a channel-like third support seat.
In one aspect of the invention, at least one pair of substantially parallel second connecting rods are transverse to and interconnect one of the pairs of the first leg members, the second connecting rods being spaced apart from an adjacent one of the transverse frame members, the second connecting rods and the first leg members confining a channel-like fourth support seat.
In another aspect of the invention, a chair further comprises at least one pair of substantially parallel third connecting rods which are transverse to and interconnect one of the pair of the second leg members, the third connecting rods being spaced apart from an adjacent one of the transverse frame members, the third connecting rods and the second leg members confining a channel-like fifth support seat