Abstract: According to one embodiment, a vibration damping apparatus for an elevator car includes an engaging apparatus, an interlocking mechanism, and a friction generation mechanism. The engaging apparatus includes a pair of engaging vanes. A gap between the vanes is narrowed when the car door apparatus is opened. The interlocking mechanism includes a lock lever and an engaging body, is released by an action of the engaging vanes holding the engaging body, and interlocks the hall door apparatus with operation of the car door apparatus. The friction generation mechanism generates a frictional force between the engaging vanes and the engaging body for suppressing a vertical vibration of the car when the engaging vanes are in a state of holding the engaging body.

Abstract: A sheave support apparatus for an elevator includes a car frame and a sheave support member. The car frame supports a car, and has a beam extending in a horizontal direction. The sheave support member rotatably supports a pair of sheaves around which cables pass, and is attached to the beam to extend in the horizontal direction in a state of crossing the beam of the car frame. The sheave support member includes a first support beam and a second support beam. The first and the second support beams are fixed to the beam of the car frame in a state of holding the beam therebetween from above and below. The sheaves are supported between respective end portions of the first support beam and respective end portions of the second support beam.

Abstract: In a passenger conveyer abnormality diagnosis system, sound data of escalator operating sound of a plurality of revolutions is collected by a moving sound collector provided for an inspection step and then processed into a data set for diagnosis with an accidental external noise component removed. The data set for diagnosis sent from a data transceiver through a communication network to a remote monitoring apparatus installed at a remote-located monitoring center. The remote monitoring apparatus diagnose the presence of abnormalities of the escalator based on the data set for diagnosis.

Abstract: A sheave support apparatus for an elevator includes a car frame and a sheave support member. The car frame supports a car, and has a beam extending in a horizontal direction. The sheave support member rotatably supports a pair of sheaves around which cables pass, and is attached to the beam to extend in the horizontal direction in a state of crossing the beam of the car frame. The sheave support member includes a first support beam and a second support beam. The first and the second support beams are fixed to the beam of the car frame in a state of holding the beam therebetween from above and below. The sheaves are supported between respective end portions of the first support beam and respective end portions of the second support beam.