Patent ID: 7562745

Claim:
An elevator system comprising: a cage that is guided by a pair of right and left cage-side guide rails to vertically move in an elevator shaft; a traction sheave that is arranged above one of the pair of right and left cage-side guide rails, and is rotated about a rotational axis extending in a front and back direction; a driving apparatus that drives the traction sheave in rotation, and has an axis extending in the front and back direction: a counterweight that is guided by a pair of front and rear counterweight-side guide rails below the traction sheave to vertically move in the elevator shaft; a cage-side sheave disposed on the cage; and a hoist rope that is passed round the traction sheave, and has one end extending down apart from an inner wall surface of the elevator shaft to suspend the cage via the cage-side sheave and another end extending down along the inner wall surface of the elevator shaft suspending the counterweight; wherein a machine room disposed above the elevator shaft includes therein: a machine beam that extends between building-side receiving beams in the front and back direction along one of a pair of right and left inner wall surfaces that extend opposite to each other in the front and back direction, the machine beam supporting the driving apparatus, the traction sheave, and a counterweight-side hitching portion for hitching the other end of the hoist rope on a side of the counterweight; a cage-side hitching portion for hitching the one end of the hoist rope on a side of the cage, and a speed governor, which are arranged along the other of the pair of right and left inner wall surfaces; and a control panel for controlling the driving apparatus, which is arranged along the other inner wall surface, or a front inner wall surface extending in a right and left direction, perpendicular to the front and back direction, between the pair of right and left inner wall surfaces, wherein each of the machine beam the cage-side hitching portion, and the control panel is arranged around and outside of a unified operation space occupying a center part of the machine room, wherein said unified operation space is a space free of all equipment.