Elevator governor, elevator equipped with the same, and speed detection method using the same

摘要

PROBLEM TO BE SOLVED: To enhance accuracy of speed detection of an elevator and reduce load applied to components of an elevator governor or the like.SOLUTION: An elevator governor 400 includes: a movable member 460 moving in a direction of a shaft 431 in cooperation with movement of a weight part 472 in the radial direction around the shaft 431 through revolution; a support member 485 directly or indirectly connected to the movable member 460; a sliding member 486 that is supported by the support member 485, enables detachment from the support and is slid with the support member; and a hook member 487 connected to the sliding member 486 and rotatable around a hook shaft 489a. A distance between the position of the hook shaft 489a and a position where the sliding member 486 comes into contact with the support member 485 is longer than a distance between the position of the hook shaft 489a and a position where the hook member 487 holds a rope gripping bar 490.SELECTED DRAWING: Figure 3