Manhole fixing structure for passenger conveyor, passenger conveyor, and method for releasing the manhole fixing state

Abstract

A manhole fixing structure (30) includes: a manhole fitting portion that includes a manhole receiving portion; a manhole suction portion that is stationary with respect to a truss and is made of magnetic material; and a manhole (1) that is supported by the manhole receiving portion and fits into the manhole fitting portion. The manhole (1) has: a plate-shaped manhole body (2); a rotating portion (3a) rotatably attached to the manhole body (2); a permanent magnet; and an operation portion for performing a rotation operation that rotates the rotating portion (3a). The rotating portion (3a) can take either a first state in which the manhole (1) is suctioned to the manhole suction portion by a magnetic force generated by the permanent magnet, or a second state in which the manhole (1) has been rotated from the first state and the manhole (1) is not suctioned to the manhole suction portion.