JPS586888A - Cage chamber 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 The present invention relates to an elevator car, and more particularly to a side plate constituting a peripheral wall of the car.

Elevator - Car floor 1, as shown in Figure 1.
, a car door 2, a side plate 3, and a top plate (not shown).

The side plate 3 has conventionally been constructed as shown in FIGS. 2 and 3. That is, the side panel 3 consists of a side panel 3a formed by bending a thin steel plate into a mouth shape, a companion U-shaped horizontal reinforcement member 3b provided on the upper and lower sides of the back side to which the top plate and floor are attached, and these. A vertical reinforcing member 3 with a narrow inverted hat shape that suppresses vibration is provided between the horizontal reinforcing members 3b.
C and C are fixed to each other by welding or the like.

FIG. 4 is a characteristic diagram showing the natural frequency of the conventional side plate configured in this manner. It can be seen from this characteristic diagram that resonance points with sharp amplitudes are distributed everywhere, and the damping coefficient is also extremely small. As is well known, the elevator room is raised and lowered by engaging a counterweight in a hanging manner via a rope attached to a hoisting machine installed in a machine room at the top of the building. This means that the rotational pulsation of the hoist is transmitted to the car via the rope, causing the car to vibrate and generate noise, making the ride uncomfortable.

This vibration cycle that makes the ride uncomfortable exists in a wide range of ranges due to various factors, such as the rotation speed of the electric motor, the mesh ratio of the hoist, and the resonance of the rope due to the lifting stroke. As can be seen from the characteristic diagram in FIG. 4, it is extremely difficult to avoid vibration resonance with the conventional side plate structure. Therefore, various researches have been carried out to prevent vibrations from being transmitted to the cage, but these have had the disadvantage of causing extremely large flames and resulting in expensive structures.

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive elevator cage tube which eliminates the drawbacks of the prior art described above and avoids side plate resonance.

To achieve this objective, the present invention has a simple structure in which an inexpensive non-metal vibration damping plate, such as a building material board, is mounted on the back side of the side plate, and the vibration damping coefficient of the side plate is increased. shall be.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

FIG. 5 is a perspective view of a side plate according to an embodiment of the present invention, and FIG. 6 is a sectional view taken along line BB.

The side plate 10 includes a side plate panel 10a formed by bending a thin steel plate into a mouth shape, and side plate panels 10a on the upper and lower sides of the back side of the side plate panel 10a.
90 horizontal reinforcing material 10゛8＠＠′ (*“1°” 0; 1° on the entire back surface or It is composed of a building material board 11, such as an insulation board, a wood chip board, an asbestos board, etc., which is partially bonded with an adhesive 13.

The width W2 of the building material board 11 is set to be 60 inches or more of the width Wl of the side plate 10a, and its length is set to cover almost the entire length of the side plate 10a. Furthermore, since the adhesive on the building material board 11 tends to peel off over time, as shown in FIG. The construction material board 11 is mounted so as to overlap the upper end and the lower end of the board 11 by the L dimension in the height direction, respectively, so that it will not fall off from the side plate 10 even if the building material board 11 is peeled off. The thicker the thickness TFi of the building material board 11, the greater the vibration damping effect.

FIG. 7 is a characteristic diagram showing the natural frequency of the side plate of this embodiment, and FIG. 8 is the width W2 of the building material board 11 and the width Wl of the side plate 10.
From Figure 7, which is a characteristic diagram showing the natural frequency when the ratio (%/Wt) is less than 60 cm, it is 711↓
According to the side plate of this embodiment, the vibration damping coefficient does not become large or have a sudden amplitude, and it is possible to eliminate factors that promote resonance with vibrations transmitted from the pop-up. On the other hand, the ratio W! As /Wl becomes smaller than 6091, as shown in FIG. 8, the characteristics become similar to those of the conventional side plate shown in FIG. 4. / WI Fi6011 or higher is desirable 0 Also, FIGS. 9 and 10 are a perspective view of a side plate according to another embodiment of the present invention and a cross-sectional view thereof taken along the line C-C,
The same reference numerals as those in FIGS. 5 and 6 indicate the same or similar items. This embodiment is shown in FIGS. 5 and 6 and differs from the following embodiment in that the building material board 11 is Instead of bonding with adhesive to the back surface of the flannel 10a, the building material board 1 is made of upper and lower horizontal reinforcing members 10b and an intermediate bonding presser 100 fixed with a rivet 12 in the same way as the horizontal reinforcing member 10b in the middle in the height direction.
The mounting is supported by pressing the 1t-side plate against the back surface of the flannel 10a.Also in the case of this embodiment, substantially the same effect as in the previous embodiment can be obtained.

It is also possible to completely or partially interpose an elastic material such as rubber or felt between the mounting surface of the side panel and the building material board, and in this way, an even greater vibration damping effect can be obtained. It will be done.

As explained above, according to the present invention, the vibration damping coefficient of the side plate is increased by using a simple structure in which an inexpensive non-metallic damping plate is attached to the back surface of the side plate. An elevator car that avoids resonance and provides a comfortable ride can be provided at a low cost.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view showing a schematic structure of an elevator car, Fig. 2 is a perspective view showing a conventional side plate structure, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a cross-sectional view showing a conventional side plate structure. A characteristic diagram showing the natural frequency of the side plate, FIG. 5 is a perspective view showing the side plate structure according to an embodiment of the present invention, FIG.
The figure is a characteristic diagram showing the natural frequency of a side plate according to an embodiment of the present invention, Figure 8 is a characteristic diagram showing the natural frequency of a side plate where the ratio of the building material board to the side plate is less than 60 inches, and Figure 9 is a characteristic diagram showing the natural frequency of the side plate according to an embodiment of the present invention. A perspective view showing a side plate structure according to another embodiment of the invention, FIG. 10 is a sectional view taken along line C--X in FIG. 9. 10...Side plate, 1Oa...Side plate panel, 10b...Horizontal reinforcement material, 11...Building material board (non-metal vibration damping plate), 13. ...Adhesive Fig. 1 Fig. 4 Fig. 2 Fig. 5 Fig. 7 Fig. 8 Fig. 9 Fig. 10

Claims (1)

[Claims] 1. A top plate, a car floor, and a side plate made of steel plate constituting a peripheral wall;
An elevator car comprising a car door, characterized in that a non-metal vibration damping plate is attached to the back surface of the side plate. 2. The elevator car according to claim 1, wherein the distribution plate is a building material board. 3. In either of claims 1 and 2, the width of the vibration damping plate is equal to or larger than the width of the side plate, and the length of the damping plate is approximately the entire length of the side plate. An elevator car characterized by: 4. An elevator car according to any one of claims 1 to 3, characterized in that the entire FLF swing plate is attached by adhesively bonding the sheet metal. 5. The elevator car according to any one of claims 1 to 4, characterized in that a support member for preventing the vibration damping plate from falling off is provided on the back side of the vibration damping plate. 6.4G The elevator cab according to claim 5, characterized in that a lateral reinforcing member is attached to the back side of the side plate, and this lateral reinforcing member also serves as the support member for preventing falling off.