JPS60223773A - Vibrationproof device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an elevator vibration isolator, and more particularly to an improvement in a vibration isolating support mechanism that connects an elevator car frame and a hanging wheel.

[Prior art]

In an elevator, vibrations generated from the hoisting machine or motor in the machine room are transmitted through the rope to the car.
, Do you fi e lf ff & h m? #4et
rs b "7. In order to prevent vibrations, an elastic body is installed between the hanging wheel around which the rope is wrapped and the car frame, thereby preventing vibrations. This type of technology is known, for example, from the
This is already known from Japanese Patent No. 3-8971.

FIGS. 1 and 2 are for explaining such a conventional elevator vibration isolator, where l is a car chamber and C is a car frame. It is supported by Ko. A hanging wheel for a dark basket, the axis of the hanging wheel is
A is attached to the support base B by a U port 11, and an elastic body for vibration isolation such as a spring is installed between the support base 6, which is vertically movably supported with respect to the upper beam core a of the car frame, and the upper beam 18. is mediated.

g is a hoisting machine installed in the machine room D at the top of the hoistway, and a rope /l is wound around the sheave ga and deflection wheel 10, and the rope //li above is hung from the sheave Jra side. The rope is wound around a hanging wheel, and the end of the rope is connected to a support beam or the like in the machine room 9.

Further, the rope 1/ hanging down from the deflection wheel 10 side is attached to the suspension 73 of the counterweight 1, and the end of the rope is similarly connected to the support beam etc. of the machine room 9. There is.

In this twisted 2:1 roving system, when the sheave ffa at the hoisting machine rotates in the forward and reverse directions, the car is raised and lowered, and the hoisting machine is transmitted to the hoisting sheave via the rope l/. The vibrations from g are absorbed by the elastic body and prevented from being transmitted to the car frame and the car room I.

However, in the conventional vibration isolating device as described above, since the elastic body 7 is installed between the support base 6 of the hanging car and the upper beam 18 of the car frame, the elastic body t may be deformed. In this case, the centers of the car frame and the hanging wheel do not match, which requires a great deal of effort during installation. In addition, passengers may be injured in the car,
Or, during an emergency stop, etc., the car shakes significantly in the vertical direction, which increases the relative displacement between the hanging car and the car frame, causing interference with other equipment, such as the car frame, or damage to the elastic body. There was a risk.

[Summary of the invention]

This invention solves the conventional problems as mentioned above.
By providing a stopper mechanism that regulates the relative displacement between the hanging wheel and the car frame, the relative displacement between the hanging wheel and the upper beam of the car frame is restricted, and damage to the equipment and the elastic body is prevented.
To provide an elevator vibration isolator which can easily align the centers of a hanging wheel and a car frame.

[Embodiments of the invention]

The elevator vibration isolator of the present invention is shown in FIG. 3 below.

The embodiment shown in FIG. 4 will be described.

In FIGS. 3 and 4, the same parts as in FIGS. 1 and 2 are denoted by the same reference numerals, and the explanation thereof will be omitted, and different parts will be mainly described.

That is, the vibration isolating device of the present invention is provided with a stopper mechanism for regulating the relative displacement between the hanging wheel and the upper beam of the car frame, and this stopper mechanism has a rod member /S made of a bolt or the like. The lower end of this rod member is screwed into a screw hole 16 formed in the support base of the hanging wheel so that it can be adjusted in the vertical direction, and the rod member /3 is fixed to the screw hole 1B. The lock is screwed on,
Furthermore, the upper end of the p-rad member /j, which is attached at right angles to the support base, is inserted into a through hole /g drilled in the upper beam core a of the car frame, and the rod member /j is inserted between this through hole /g. An upper stopper 19 and a lower stopper O are provided at the upper and lower parts of j, respectively.
Further, a lower stopper 19. - Among the circles, the lower stopper O is composed of a nut that is fitted with the rond member/jVc#.

In this embodiment configured as described above, during installation,
After connecting the support base 6 of the hanging car and the upper beam core a of the car frame with a rod member /S screwed to the support base through the through hole it of the upper beam core a, the elastic body is attached to the support base. 6 and upper beam 18
The elastic body is fixed between the support base 6 and the upper beam 18 by moving the suspension wheel including the support base 6 upward. This makes it easy to align the centers of the hanging wheel and the car frame. Also, upper and lower stoppers/? for the upper beam core a? , By appropriately setting the position of the cage O with a distance from the upper beam core a, the relative displacement between the hanging car and the upper beam core a can be regulated, and as a result, passengers can If something happens indoors, or if the car shakes up and down significantly during an emergency stop, other equipment may interfere with the car frame, etc.
The elastic body is not damaged and a safe elevator can be provided.

In the above embodiment, the upper stopper 19 has a fixed structure, but it may have the same structure as the lower stopper O.

Further, the rod member /j may have a fixed structure with respect to the support base 6.

〔Effect of the invention〕

As explained above, according to the present invention, a rod member is fixed to the support base of the hanging wheel, the upper end of this rod member is passed through the upper beam of the car frame, and the stopper is placed above and below the upper beam of the rod. Since it is movably installed on a member, it is possible to control the relative displacement between the suspension car and the car frame upper beam, and this prevents passengers from being lifted up in the car or the car shaking significantly during an emergency stop. Not only can interference with equipment and damage to the elastic body be prevented, but also the center of the hanging wheel and car frame can be easily aligned during installation.

[Brief explanation of the drawing]

FIG. 1 is an overall view of an elevator having a conventional elevator vibration isolator, FIG. 2 is a front view of the conventional elevator vibration isolator, and FIG. 3 is a front view showing an example of the elevator vibration isolator of the present invention. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. l...car room, co...car frame, core a...upper beam, da...hanging wheel,! ...U bolt, 6...support stand,?
...Elastic body, S...Hoisting machine, //...Rope, 1
2... Counterweight, lda... stopper mechanism, lS.
...Rondo member, lS...through hole, 19...upper stopper, KO...lower stopper. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa (2 people) Figure 1 Figure 2m Figure 3 ■ Figure 4 Procedural amendment (voluntary) 115. □ Gate 41 p. 7.8.1, Name of the invention Elevator vibration isolator 3, Relationship to the case of the person making the amendment Patent applicant address 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (6
01) Mitsubishi Electric Corporation Representative Yuhito Kata, Department 4, Agent! y Circle (n 5, Subject of amendment (1) Drawing 6, Contents of amendment (1) Drawing ptS4 figure is corrected as attached. 7, Attachment: Category q (1) Amended drawing 1 copy) Figure 4

Claims (1)

[Claims] In an elevator in which a car frame and a suspension wheel are coupled with an elastic body to provide vibration isolation, a rod member is erected on the support base of the suspension wheel, and the upper end of this rod member is passed through the upper beam of the car frame. The elevator vibration isolator is characterized in that the upper beam penetrating portion of the rod member is provided with stoppers located above and below the upper beam and movable up and down.