| 摘要 |
A speed governor of an elevator, wherein a pulley around which a speed governor rope is wrapped is rotatably supported on a base. A latchet having an engagement piece for operation and rotatable about a pulley shaft for the pulley is supported on the base. The pulley comprises an engagement mechanism having a claw engaged with the ratchet when the rotational speed of the pulley reaches a set overspeed and rotating the ratchet in the same direction as the pulley. A rope gripping mechanism for braking the speed governor rope is disposed on the underside of the pulley. An operation lever displaceably pressed by the engagement piece for operation to operate the rope gripping mechanism is connected to the rope gripping mechanism. A groove part in which a part of the engagement piece for operation is inserted and extending in the moving direction of the engagement piece for operation is formed in the base.
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