Elevator

Abstract

The invention provides a compact vibration absorption device for an elevator effectively dampening vertical vibration of low frequency and being stored in an outside dimension of a car frame. The elevator comprises a car frame 6 vertically moving in a hoistway 1; a car 5 provided in the car frame 6; a guide rail 2 for guiding the vertical movement of the car frame 6 and provided so as to be vertically extended; and a hanging rope 3 for supporting and lifting the car frame 6 through a pulley 4 below the car provided at a lower part of the car frame 6. A vertically moving dynamic damper 10 is provided below the car frame 6.

Description

technical field

[0001] The invention mainly relates to a vibration absorbing device of a cable elevator. Background technique

[0002] Recently, there is a car frame that moves up and down in the hoistway, a car installed in the car frame, a guide rail that guides the up and down movement of the car frame and extends in the vertical direction, and a The car lower pulley at the bottom of the car frame, the elevator supporting the car frame and the sling that makes it go up and down have been widely used. However, there is a problem that a primary vibration, that is, a longitudinal vibration in a low frequency band (near 3 Hz), has recently occurred in this type of elevator.

[0003] In order to solve this problem, a kind of disclosed scheme is to arrange a leaf spring under the noose of the suspension car, and balance weights are set on the left and right sides of the leaf spring (for example, Japanese Patent Laying-Open No. 57-33181 communique ( Line 6 to Line 11 in the lo...

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