Vibration suppression device for rope-like body of elevator

A vibration suppression device for a rope-like body of an elevator, comprising:

• a first unit which is capable of movement in a direction in which a distance from an equilibrium position of vibration of the rope-like body of the elevator changes;
• and
• a first stopper which restricts movement of the first unit to a position closer than a first distance from the equilibrium position, wherein
• the first unit includes
• a first displacement amplifier which is arranged to be directed to a first position in a longitudinal direction of the rope-like body and amplifies displacement of vibration of the rope-like body by an attractive force which becomes stronger as the rope-like body approaches closer, and
• a first restriction body which inhibits the rope-like body from approaching the first displacement amplifier closer than a predetermined distance,
• and wherein
• the first unit moves together with the rope-like body towards a direction separating from the equilibrium position when the rope-like body, which is moving towards the direction separating from the equilibrium position, contact with the first unit, and
• the first stopper restricts the movement of the first unit to a position closer than the first distance from the equilibrium position when the first unit, which is moving towards a direction approaching the equilibrium position in a process where the rope-like body returns to the equilibrium position, contact with the first stopper,
• the vibration suppression device further comprises a position corrector which causes the first unit to approach the equilibrium position when the first unit is separated from the equilibrium position farther than the first distance,
• wherein the position corrector is a restitution slope which causes the first unit to approach the equilibrium position by gravity applied to the first unit.