JPS582912B2 - elevator - Google Patents

Description

[Detailed description of the invention] This invention relates to an elevator suitable for high-rise buildings.

With the recent development of high-rise building construction technology, the role of elevators has become increasingly important, and they have become indispensable for transporting passengers and luggage.

By the way, because high-rise buildings have a flexible structure, they are prone to sway due to strong winds, earthquakes, etc.

That is, as shown in FIG. 1, a machine room 2 is provided above the elevator hoistway 1 in the pill, a lobe hole 4 is bored in the floor plate 3 of the machine room 2, and one end of the rope 6 is connected to the seat 5 in the hoistway 1. and insert this rope 6 into the rope hole 4 and the machine room 2.
It is attached to a counterweight 8 via a sheave 7 driven by a drive mechanism (not shown).

Therefore, when the building shakes horizontally, the rope 6 vibrates laterally as shown by the chain line in FIG. In extreme cases, it may come off from the rope groove without smoothly entering the rope groove of the sheave 7 of the hoisting machine.

There was also the problem of ropes getting tangled.

This invention was made in view of the above circumstances, and when a building sways due to wind, earthquakes, etc., it suppresses the lateral sway of the elevator ropes caused by the lateral sway of the building, thereby making it safe and not causing anxiety to passengers. In particular, an object of the present invention is to provide an elevator device suitable for high-rise, high-speed elevators, in which a plurality of parallel ropes can be guided in a staggered manner to prevent the ropes from becoming entangled with each other. It is.

An embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In the figure, 11 is an elevator shaft installed in a building, and 12 is an elevator hoistway installed in a building.
13 is the floor of the machine room provided at the upper end of the hoistway 11, 13 is a rope hole drilled in the floor of the machine room, 14 is a car that is to be raised and lowered within the hoistway 11, and 15 is provided protruding from the top plate of the car 14. The shock absorber 16 is a plurality of ropes arranged in parallel, for example, five ropes, each having a rider 14 attached to one end and a counterweight (not shown) attached to the other end. It is wrapped around the machine's sheave 17.

Reference numeral 18 indicates a guide rail on both sides that is provided perpendicularly along both side walls of the hoistway 11 to guide the car 14. Reference numeral 19 indicates a guide rail 18 that is provided protruding from the upper and lower ends of both sides of the car 14.
The roller 20 which rolls into contact with the elevator car 14 is a vibration damping device for suppressing the lateral shaking of the rope 16, which is provided near the upper end of the hoistway 11 of the season car 14 and at a position where it would not normally collide with the seat 14.

3rd and 4th figures are a plan view and a side view showing the vibration damping device 20, in which 21 denotes both side arm members attached horizontally by fittings 22 so as to be orthogonal to the both side guide rails 18, respectively; Reference numeral 23 denotes a support frame detachably mounted on the upper part of the both side arm members 20 so that the support frame 23 can be easily detached upward by a push-up force from below and escape.

That is, this support frame 23 is made by assembling L-shaped members in a cross-section shape, and has U fixed to both ends of the upper surface of the above-mentioned both side arm members 21.
The hanging part of the L-shaped member 9 is inserted into the holding metal fitting 24, and in this state, the supporting metal fitting 25 is attached to the upper surface of the arm member 21.
A retaining screw 26 is screwed into the retaining screw 26, and a spring 27 is provided at the tip of the retaining screw 26, and the elastic force of the spring 27 causes the pin 2 to
It is held by elastically clamping the hanging portion of the le-shaped member in the presser metal fitting 24 via 8.

A receiving member 29 is provided between the support frames 23, with which the upper shock absorber 15 comes into contact when the car 14 rises abnormally.

In order to maintain the passage paths of the plurality of ropes 16 at fixed positions in the center of the support frame 23,
A pair of left and right guide pulleys 930 are pivotally supported.

The left and right pulleys 30 of each set, which form a pair with the rope 16 interposed between each other, have different diameters, and the large and small pulleys 30 of each set are alternately arranged with left and right reversed. It is supported by a shaft.

That is, by alternately fitting large and small pulleys onto the left and right shafts, the ropes 16 are guided in a staggered manner relative to each other, as shown in FIG.

With the above-described configuration, the lateral vibration of each rope 16 due to the lateral shaking of the building, etc. can be reduced by the large ropes of each pair.
The rope 16 can be reliably restrained by being sandwiched between the small pulleys 30, and thereby the rope 16 can be reliably guided to the sheave 17 of the hoisting machine. This can prevent damage caused by hitting the object.

In addition, the ropes 16 that are close to each other in parallel are guided while being shifted to the left and right in a staggered manner, thereby eliminating entanglement between the ropes.

In addition, the support frame 23 that pivotally supports the pulley 30 is connected to the guide rail 1.
Since the arm member 21 attached to the car 8 is placed on top of the arm member 21 and is elastically clamped so that it can be detached upward by a push-up force from below, even if the car 14 rises abnormally beyond the specified limit, vibrations can be suppressed. The device 20 comes off as if escaping upwards and the car 14
There is no problem of damage to other parts.

Since this invention is made as detailed above, it is possible to guide a plurality of parallel ropes so that they do not sway, and also to guide the ropes in a staggered manner to prevent entanglement between the ropes. The elevator is safe and does not cause anxiety to passengers, and has great practicality as it prevents damage to the rope.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram illustrating a conventional elevator, Fig. 2 is a vertical cross-sectional view of a main part showing an embodiment of the present invention, and Figs. 3 and 4 are diagrams showing a vibration damping device of the same embodiment. So, Figure 3 is the second
FIG. 4 is a cross-sectional view taken along the line IV--IV of FIG. 3. 11... Hoistway, 14... Car, 1
6... Lobe, 18... Guidance rule, 20... Vibration damping device, 21... Arm member, 23... Support frame, 30・・・・・・Dog/Pulley.

Claims (1)

[Scope of Claims] 1. A support frame is provided near the upper end of the hoistway of the car and at a position where the car normally does not come into contact with the car, and a pair of left and right shafts are mounted on the support frame at a parallel distance from each other. In addition, by arranging a plurality of pulleys in parallel on the left and right shafts, the left and right pulleys are arranged in pairs facing each other, and the above-mentioned pulleys are arranged between the left and right pulleys of each set. A device equipped with a vibration damping device that suppresses the lateral vibration of multiple ropes that suspend a car by passing one rope through the other, and which is arranged in a row on each of the left and right axes of the vibration damping device. The diameters of the two pulleys are alternately made larger and smaller in the direction of their respective axes, and the pulleys, whose left and right shafts have different diameters from each other, are assembled by sandwiching the rope. An elevator characterized in that each elevator is configured to face each other. 2. The support frame of the vibration damping device is mounted on the upper part of the arm members respectively attached to the guide rails on both sides in the hoistway of the car, and is elastically clamped so that it can be detached upward by a push-up force from below. The elevator according to claim 1, characterized in that the elevator is provided within the elevator.