Quenching apparatus

Abstract

A quenching apparatus comprises a casing, a motor that generates rotational power, a carrier that is disposed in the casing and carries a member to be treated, a drive mechanism that is disposed in the casing and transmits the rotational power to the carrier to change a position assumed by the carrier in a vertical direction, a suspension chain that interconnects the drive mechanism and the carrier, a sensing member connected to the carrier and having a sensing unit, and a sensor that senses the position assumed by the carrier based on a position of the sensing unit. The sensor continuously senses the position assumed by the carrier while the carrier positionally varies in the vertical direction.

Dependencies are inferred from the claim text.