Provided is a guide rail cleaning device, including: a first cleaning portion including a first cleaning member configured to clean a driving-roller guide rail for a step; a second cleaning portion including a second cleaning member configured to clean a trailing-roller guide rail; and a mounting plate. The mounting plate is removably mounted to a step shaft having a driving roller fixed thereto. The first cleaning portion and the second cleaning portion are mounted to the mounting plate. The first cleaning member is brought into abutment against the driving-roller guide rail. The second cleaning member is brought into abutment against the trailing-roller guide rail. With this, the driving-roller guide rail and the trailing-roller guide rail are simultaneously cleaned through use of the first cleaning member and the second cleaning member.

Provided is a guide rail cleaning device, including: a first cleaning portion including a first cleaning member configured to clean a driving-roller guide rail for a step; a second cleaning portion including a second cleaning member configured to clean a trailing-roller guide rail; and a mounting plate. The mounting plate is removably mounted to a step shaft having a driving roller fixed thereto. The first cleaning portion and the second cleaning portion are mounted to the mounting plate. The first cleaning member is brought into abutment against the driving-roller guide rail. The second cleaning member is brought into abutment against the trailing-roller guide rail. With this, the driving-roller guide rail and the trailing-roller guide rail are simultaneously cleaned through use of the first cleaning member and the second cleaning member.

An embodiment discloses a sterilization module comprising: a frame including a support part that includes one surface and one end, and a fastening part connected to the one end; a first circuit board disposed in the fastening part; and an ultraviolet irradiation device disposed on the first circuit board, wherein the support part comprises: the other end facing the one end; and a side end facing the other end. The frame comprises: a protrusion connected to the side end of the support part; and a guide part connected to the other end of the support part. The fastening part and the guide part extend in a first direction perpendicular to one surface of the support part, and the protrusion extends in a direction opposite to the first direction. The guide part comprises: a first guide part and a second guide part that are spaced apart from each other in a second direction parallel to the one end. The other end comprises a recess between the first guide part and the second guide part, wherein the recess is concave toward the one end.

An embodiment discloses a sterilization module comprising: a frame including a support part that includes one surface and one end, and a fastening part connected to the one end; a first circuit board disposed in the fastening part; and an ultraviolet irradiation device disposed on the first circuit board, wherein the support part comprises: the other end facing the one end; and a side end facing the other end. The frame comprises: a protrusion connected to the side end of the support part; and a guide part connected to the other end of the support part. The fastening part and the guide part extend in a first direction perpendicular to one surface of the support part, and the protrusion extends in a direction opposite to the first direction. The guide part comprises: a first guide part and a second guide part that are spaced apart from each other in a second direction parallel to the one end. The other end comprises a recess between the first guide part and the second guide part, wherein the recess is concave toward the one end.

A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

A rail cleaning device for a passenger conveyor includes: a main body; a cleaning body; and a fastening band. The main body has a through hole. The through hole is arranged so that lower ends of link plates are located at an intermediate position of the through hole in a height direction of the main body when the cleaning body is held in abutment against an upper surface of a drive rail. The fastening band has a ring shape passing through an inside of the through hole and over outer sides of the link plates and extending to an upper side of the main body. The fastening band is tightened so as to press the cleaning body onto the drive rail by bringing an upper end of the main body close to the lower ends of the link plates, thereby fastening the main body to the link plates.

Provided is an abnormality detection device, in which a sound signal acquisition unit connected to a passenger conveyor converts a sound wave around each of inspection guide shoes mounted to a step into a sound signal. A sound signal analysis unit analyses the sound signal and extracts a sound pressure or a main frequency. The controller has not only a function as a command unit configured to command an operation for causing the step to run but also a function as an abnormality determination unit configured to determine an abnormality in skirt guards based on the sound pressure or the main frequency. The sound signal analysis unit in the abnormality detection device analyzes the sound signal acquired by the sound signal acquisition unit under a state in which the step is caused to run, and extracts the sound pressure or the main frequency.

Provided is an abnormality detection device, in which a sound signal acquisition unit connected to a passenger conveyor converts a sound wave around each of inspection guide shoes mounted to a step into a sound signal. A sound signal analysis unit analyses the sound signal and extracts a sound pressure or a main frequency. The controller has not only a function as a command unit configured to command an operation for causing the step to run but also a function as an abnormality determination unit configured to determine an abnormality in skirt guards based on the sound pressure or the main frequency. The sound signal analysis unit in the abnormality detection device analyzes the sound signal acquired by the sound signal acquisition unit under a state in which the step is caused to run, and extracts the sound pressure or the main frequency.