Patent ID: 7918319
Filing Date: 2011-04-05
Classification: B66B

Abstract:
1. An elevator apparatus comprising: a first hoisting machine having a first drive sheave and disposed in an upper portion of a hoistway such that a rotary shaft of the first drive sheave extends horizontally; a first car and a first counterweight that are raised and lowered within the hoistway by the first hoisting machine; a first suspension body having a first car end connected to an upper portion of the first car and a first counterweight end connected to the first counterweight, and looped around the first drive sheave; a second hoisting machine having a second drive sheave and disposed in the upper portion of the hoistway such that a rotary shaft of the second drive sheave extends horizontally; a second car, disposed below the first car and having a first lateral surface and a second lateral surface that face each other, for being raised and lowered within the hoistway by the second hoisting machine; a second counterweight that is raised and lowered within the hoistway by the second hoisting machine; a second suspension body having a second car end connected to the second car on the first lateral surface side thereof and a second counterweight end connected to the second counterweight, and looped around the second drive sheave; a third suspension body having a third car end connected to the second car on the second lateral surface side thereof and a third counterweight end connected to the second counterweight, and looped around the second drive sheave; a first deflector pulley disposed in the upper portion of the hoistway and having the first suspension body looped therearound; and a second deflector pulley disposed in the upper portion of the hoistway and having the second suspension body looped therearound, where in the hoistway has, disposed in the upper portion thereof, a looping angle adjusting pulley having the second suspension body looped therearound between the second drive sheave and the second deflector pulley to increase a looping angle of the second suspension body with respect to the second drive sheave.