Quenching apparatus

Abstract

A quenching apparatus comprises a motor that generates rotational power, a carrier that carries a member to be treated, and a drive mechanism that transmits the rotational power to the carrier to change a position assumed by the carrier in the vertical direction. The drive mechanism includes a first wheel and a second wheel aligned in the vertical direction, and a chain extending between and engaged with the first and second wheels to transmit rotation of the first and second wheels. The motor applies the rotational power to rotate either the first wheel or the second wheel. The position assumed by the carrier in the vertical direction is determined by how many times the motor rotates, and a speed at which the carrier moves in the vertical direction is determined by a speed at which the motor rotates.

Dependencies are inferred from the claim text.