JPS5810353B2 - elevator - Google Patents

Description

[Detailed description of the invention] This invention relates to an elevator with good riding comfort.

In general, the ride comfort of elevators is much better than that of other means of transportation, but elevators are installed inside buildings and operate vertically.

For this reason, strict performance is required to avoid causing anxiety to passengers due to vibrations, noise, etc.

By the way, the main causes of vibration in an elevator car include vibrations of the hoist transmitted through the rope, bends and irregularities of the rails that guide the car.

Conventionally, in order to prevent such vibrations from propagating to the car and causing anxiety or noise to the passengers, springs were inserted in the ropes to elastically suspend the car, or the car was suspended from the rails. Efforts have been made to make sliding contact guide shoes elastically come into sliding contact via an elastic body, or to install vibration isolating material under the floor of the car, but neither of these methods has been effective enough.

For this reason, there is a problem in that the car vibrates irregularly in the vertical, horizontal, and longitudinal directions, making it unstable and causing discomfort to passengers.

Figure 1 is a perspective view of a conventional elevator car; Figure 2 is a perspective view of a conventional elevator car;
The figure is a plan view, and FIG. 3 is a side view of the floor.

In the figure, 1 is a car, and 2 is a rope for suspending the car. This rope 2 is fixed to a pitch plate 4 attached to the center of an upper beam 3 with a coil spring 5 interposed therebetween.

A frame 6 is attached to both sides of the upper beam 3, and a lower beam 7 is attached to the lower side of the frame 6 to form a rectangular framework.

Reference numeral 8 denotes a floor support frame horizontally attached to the lower beam 7, and 9 is a floor elastically attached to the floor support frame 8 via anti-vibration rubber 10, on which the car 1 is placed.

Further, reference numeral 11 denotes guide shoes that are attached to the upper and lower ends of the rigid frame 6 and slide on guide rails (not shown) that guide the elevator car 1 on the elevator track.

Therefore, it is damped by the vibration coil spring 5 of the hoisting machine transmitted through the rope 2, and a part of it is damped by the upper beam 3, the frame 6,
Vibration is transmitted to the floor support frame 8 via the lower beam 7, and is further transmitted to the vibration isolating rubber 10.
, the car 1 is caused to vibrate.

On the other hand, vibrations caused by sliding between the rail and the guide shoe 11 are transmitted to the rigid frame 6, causing the car 1 to vibrate via the lower beam 7, floor support frame 8, and vibration isolating rubber 10.

Furthermore, since each anti-vibration rubber 10 has a cylindrical or rectangular parallelepiped shape, the top, bottom, left and right of each anti-vibration rubber 10,
Since it acts as a simple sum of spring constants in each direction, front and rear, various vibrations cannot be sufficiently damped, resulting in poor riding comfort.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an elevator that provides a comfortable ride and eliminates the feeling of anxiety for passengers.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 4 is a side view of the floor of the elevator car, and FIG. 5 is a plan view.

In the figure, 101 is a floor support frame, 102 is a floor, and 103 is a floor support frame 10.
1 and the floor 102, 104 is an iron plate that is not attached to the upper and lower surfaces of the vibration isolator 103, and 105 is an iron plate 104 on the upper surface of the vibration isolator 103 and the floor 1.
This is a spacer inserted between 02 and 02.

The floor support frame 101 is suspended from a rope via a lower beam, a rigid frame, and an upper beam (not shown), and can be moved up and down by a hoist.
06 is listed.

The anti-vibration rubber 103 is arranged at the four corners of the floor support frame 101,
The upper surface of the spacer 105 is formed as an inwardly inclined surface, and the lower surface of the spacer 105 is formed as an inclined surface corresponding to the upper surface of the vibration isolating rubber 103, so that the direction of action of the damping force of the vibration isolating rubber 103 is I am trying to concentrate on point A above the center of the floor 102.

With such a configuration, the car 106 can be moved up and down by a hoist (not shown).

The directions of action of the ff715m force due to the vibration isolating rubber 103 interposed between the floor support frame 101 and the floor 102 are inclined to each other and intersect at point A above the center of the floor 102, so a centripetal force acts and a wide frequency range It is possible to effectively damp the complex vibrations of.

Further, by setting the intersection point A of the acting direction of the damping force of the vibration isolating rubber 103 at the position of the passenger's head, the vibrations perceived by the passenger are reduced, and a sense of stability is provided, resulting in an exceptionally comfortable ride.

In the above embodiment, vibration isolating rubber is used as the elastic material, but it is needless to say that the elastic material is not limited to this, and a spring material such as a coil spring may also be used.

Further, as shown in FIG. 6, spacers 105 may be inserted on the upper and lower surfaces of the elastic rubber 103, or as shown in FIG. 7, spacers 105 may be inserted on the lower surface of the elastic rubber 103. As shown in FIG. 8, first and second elastic rubbers 201 and 202 having different spring constants may be superimposed and inserted.

In such a case, it is a matter of course that the elastic member is arranged so that the acting direction of its damping force intersects at a predetermined point.

As described in detail above, the present invention provides a structure in which a cable is placed between a floor support frame suspended from a rope and a car mounted on the floor support frame. lt
An elastic material is inserted so that the direction of action of the lJm force intersects at a predetermined point.

Therefore, it is possible to provide an elevator that can attenuate complex vibrations in a wide frequency range, provide a comfortable ride due to the centripetal force of the elastic material, and eliminate the feeling of anxiety for passengers.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams showing a conventional elevator car. Figure 1 is a perspective view, Figure 2 is a plan view, Figure 3 is a side view of the ledge, and Figures 4 and 5 are This invention +7) - Implementation f1MJ
Fig. 4 is a front view and Fig. 5 is a diagram showing an elevator car.
The figure is a plan view, and FIGS. 6 to 8 are views showing other embodiments of the present invention. 101... Floor support frame, 103... Elastic material, 106...
・Car.

Claims (1)

[Claims] 1. In a vehicle in which a car is mounted on the upper surface of a floor support frame suspended from a rope via elastic materials such as anti-vibration rubber placed at least in the four corners, there is no interference between the upper surface of the floor support frame and the lower surface of the car floor. A state where one or both of the upper and lower surfaces of each elastic material is inclined with respect to the horizontal plane so that the directions of action of each damping force intersect with each other at a point on a vertical line passing through the center of the floor of the car. An elevator characterized in that it is provided and configured.