An elevator, comprising: a machine room provided in an upper part of a hoistway; a traction machine including a traction sheave; a main rope looped around the traction sheave to be suspended from the machine room in the hoistway, the main rope having one-end side and another-end side fixed to the upper part of the hoistway so as to be reversed through loop portions; a pair of suspension sheaves (10a, 10b) supported respectively by the loop portions so as to be raised and lowered in directions opposite to each other in accordance with running of the main rope; a car and a counterweight, each including a supporting frame (17,22); a connection device for connecting one of the pair of suspension sheaves and the car and a connection device for connecting another of the pair of suspension sheaves and the counterweight; and a pair of guide rails provided to the car and a pair of guide rails provided to the counterweight, for guiding the raising and lowering of the car and the counterweight, respectively, characterized in that each of the connection devices (30A,30B) comprises a restricting body for supporting a corresponding one of the supporting frames (17,22), the restricting body being provided to bridge between a corresponding one of the pairs of guide rails and including a pair of abutment portions respectively provided at both ends of the restricting body, the pair of abutment portions being respectively brought into abutment against opposed wall surfaces of the corresponding one of the pairs of guide rails at positions different from each other in a height direction, a corresponding one of the pair of suspension sheaves (10a,10b) being connected to the restricting body so as to be rotatable about a horizontal axis. a machine room provided in an upper part of a hoistway; a traction machine including a traction sheave; a main rope looped around the traction sheave to be suspended from the machine room in the hoistway, the main rope having one-end side and another-end side fixed to the upper part of the hoistway so as to be reversed through loop portions; a pair of suspension sheaves (10a, 10b) supported respectively by the loop portions so as to be raised and lowered in directions opposite to each other in accordance with running of the main rope; a car and a counterweight, each including a supporting frame (17,22); a connection device for connecting one of the pair of suspension sheaves and the car and a connection device for connecting another of the pair of suspension sheaves and the counterweight; and a pair of guide rails provided to the car and a pair of guide rails provided to the counterweight, for guiding the raising and lowering of the car and the counterweight, respectively, characterized in that each of the connection devices (30A,30B) comprises a restricting body for supporting a corresponding one of the supporting frames (17,22), the restricting body being provided to bridge between a corresponding one of the pairs of guide rails and including a pair of abutment portions respectively provided at both ends of the restricting body, the pair of abutment portions being respectively brought into abutment against opposed wall surfaces of the corresponding one of the pairs of guide rails at positions different from each other in a height direction, a corresponding one of the pair of suspension sheaves (10a,10b) being connected to the restricting body so as to be rotatable about a horizontal axis. a restricting body for supporting a corresponding one of the supporting frames (17,22), the restricting body being provided to bridge between a corresponding one of the pairs of guide rails and including a pair of abutment portions respectively provided at both ends of the restricting body, the pair of abutment portions being respectively brought into abutment against opposed wall surfaces of the corresponding one of the pairs of guide rails at positions different from each other in a height direction, a corresponding one of the pair of suspension sheaves (10a,10b) being connected to the restricting body so as to be rotatable about a horizontal axis.