JPH0925078A - Car of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car of an elevator devised to prevent falling of a belonging into an elevator shaft and to reduce through-air noise generated while the car is elevated down. SOLUTION: A plural number of air passing holes 8a through which wind generated while a car 2 is elevated down are provided on a block plate 8 installed on a head end part of a car sill 4 of the car 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car that reduces wind noise generated when the car descends.

[0002]

2. Description of the Related Art FIG. 12 shows an example of a conventional elevator car (Japanese Utility Model Laid-Open No. 51-160349), in which reference numeral 1 is an elevator hoistway and 2 is an elevator hoistway. The car 3 is attached to the entrance and exit of this car 2, and the car door that opens and closes 4 is the car 2
Is attached to the tip of the floor 2a of the car, and the car door 3 runs when opening and closing the car sill. A landing sill that is attached to the tip of the floor and the landing door 5 travels when opening and closing, and a reference numeral 7 is attached to the car sill 4 by screwing the mounting bracket 7a to the car sill 4, and the like. It is a closing plate that closes the gap S between the landing threshold 6 on each floor.

With such a structure, when passengers get on and off the elevator, the car sill 4 and the landing sill 6 are provided.
Even if the belongings are accidentally dropped in the meantime, since they can be received by the closing plate 7, the belongings are not dropped below the hoistway 1.

[0004]

Since the conventional elevator car is constructed as described above,
You can prevent your belongings from falling into the hoistway 1, but
In the high-speed elevator (120 m / min or more), since the blocking plate 7 receives a large wind pressure as compared with the low-speed elevator, there is a problem that the blocking plate 7 generates a large wind noise or a wind collision noise.

The present invention has been made to solve the above problems, and prevents the belongings from falling into the hoistway,
Another object of the present invention is to provide an elevator car capable of reducing wind noise and wind collision noise during descent of the car.

[0006]

Means for Solving the Problems Claim 1 according to the present invention.
The elevator car described has a plurality of wind passage holes through which a wind generated when the car descends can pass through a closing plate provided at the tip of the car sill of the car.

In the elevator car according to a second aspect of the present invention, a notch portion that allows passage of wind generated when the car descends is formed in the closing plate provided at the tip of the car sill of the car. A wind guide member is provided at predetermined intervals in the longitudinal direction of the closing plate, and a wind guide member that guides the wind to the cutout is provided below the closing plate.

An elevator car according to a third aspect of the present invention is the elevator car according to the second aspect, wherein the wind guide member is in contact with the closing plate.

The elevator car according to a fourth aspect of the present invention is the elevator car according to any one of the first to third aspects, wherein the closing plate is made of an elastic material.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. 1 and 2 show an embodiment of an elevator car according to the present invention. In the drawings, the same or corresponding parts as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted. Reference numeral 8 is attached to the tip of the car sill 4, and the car sill 4 and the landing sill 6 of each floor
It is a closing plate that closes the gap S between the The closing plate 8 is formed of a net made of stainless steel or a hard synthetic resin, and a fitting 7a protruding from one end of the closing plate 8 can be easily removed by screwing it to the tip of the car sill 4. It is installed horizontally.

In this case, the mesh of the closing plate 8 serves as a wind passage hole 8a through which the wind generated when the car 2 descends in the hoistway 1 passes (see FIG. 2). In such a configuration, even when the car 2 descends at a high speed in the hoistway 1, the closing plate 8 is made of net and has a large number of air passage holes 8a, which does not block the wind. It is possible to reduce a large wind noise and a wind collision noise generated by No. 8.

For example, in the case of an elevator having a descending speed of 210 m / min, when the conventional hard rubber closing plate and the net closing plate are attached, the car 2 is lowered respectively. As a result of measuring the wind noise and the collision noise of the wind in the car 2, the noise of about 58 dB was generated when the conventional closing plate was attached, whereas the noise was generated when the net closing plate 8 was attached. It was found that the noise level was suppressed to 45 dB, and wind noise and wind collision noise could be reduced by about 13 dB compared to the conventional example.

Embodiment 2 FIG. FIG. 3 shows another embodiment of the elevator car according to the present invention. In the figure, the same parts as those of the first embodiment are designated by the same reference numerals and the description thereof is omitted. Reference numeral 9 is a closing plate that is attached to the tip end of the car sill 4 and closes the gap S between the car sill 4 and the landing sill 6 on each floor. The closing plate 9 is a closing plate main body 9a made of stainless steel or a hard synthetic resin, and a plurality of air passage holes 9b are formed over the whole of the closing plate body 9a. It is attached horizontally so that it can be easily removed by screwing it to the tip.

In such a structure, even if the car 2 descends at a high speed in the hoistway 1, the wind during the descent of the car 2 is not blocked through the air passage holes 9b.
There is an effect that the large wind noise and wind collision noise generated by the closing plate can be reduced.

Embodiment 3 4 and 5 show another embodiment of the elevator car according to the present invention. In the drawings, the same parts as those of the first embodiment are designated by the same reference numerals and the description thereof is omitted. Reference numeral 10 is a mounting bracket 7
a is a screw that is screwed to the car sill 4 and is horizontally attached to the tip of the car sill 4, and that closes the gap S between the car sill 4 and the landing sill 6 of each floor platform, 11 is a block plate 10
Are formed at predetermined intervals in the longitudinal direction of the car 2
The notch through which the wind passes during the descent, 12 is formed in a rectangular plate shape, and the front hang is hung vertically on the lower part of the closing plate 10, and reference numeral 13 is a synthetic resin material such as Styrofoam material formed in an inverted triangular shape. And glued to the front drop 12 with an adhesive,
The wind guide member guides the wind generated during the descent of the car 2 to the notch 11.

In such a structure, the wind generated when the car 2 descends is the tapered portion 1 of the wind guide member 13.
Since it is guided to the notch 11 by the 3a and passes through the notch 11, a large wind noise and wind collision noise generated by the closing plate 10 can be reduced.

In the case of an elevator having a descent speed of 210 m / min, as a result of investigating the generation situation of the wind noise of this embodiment, the noise can be suppressed to 42 dB, which is about 16 dB compared to the conventional example. It was found that

The wind guide member 13 is attached only to the lower side of the closing plate 10 and is not attached to the upper side.
Occurs when the car descends, and when the car 2 rises, the hoistway 1
This is because the air inside leaks to the outside and almost no wind noise is generated.

Embodiment 4 FIG. 6 is a front view showing another embodiment of the present invention, in which 25 is an L-shaped closing plate fixed by a rivet to a front hanging 26 attached to the tip of the car sill 4, and 27 is a closing member. The wind guide member 27, which is on the lower side of the plate 25 and is fixed to the front drop 26 by rivets, has a triangular shape. And a sponge 30 filled in.

In this embodiment, the wind generated when the car 2 descends is the guide member 29 of the wind guide member 27.
The wind that is guided to both sides of the wind guide member 27 by the sponge 30 is blocked by the sponge 30 and passes through both sides of the wind guide member 27. Wind impact noise can be reduced. Further, the closing plate 25 and the guide member 29 use the same member having an L-shaped cross section, only the length dimensions differ, and a sponge 30 which is easy to process is used between the guide members 29. The wind guide member 27 can easily be provided at the tip of the car sill 4.

It is also possible to use a wind guide member in which the sponge 30 is partially filled. Further, when the descending speed of the elevator is low, as shown in FIG.
Even if it is not filled in between, the wind does not enter between the guide members 29, and there is an effect that wind noise and wind collision noise when the car 2 descends can be reduced.

Embodiment 5. FIG. 8 is a front view showing another embodiment of the present invention, in which 33 is an L-shaped closing plate fixed by rivets to a front hanging 34 attached to the tip of the car sill 4, and 35 is a closing member. The wind guide member 35, which is on the lower side of the plate 33 and fixed to the front drip 34 by rivets, has a polygonal shape. The guide member 36 having an L-shaped cross section is filled between the guide members 36. And the sponge 37 is formed.

In this embodiment, the wind generated when the car 2 descends is the guide member 3 of the wind guide member 35.
6. The wind guiding member 35 can reduce the large wind noise and wind collision noise that flow along the wind passage portion 38 and are generated by the closing plate 33. Further, also in this embodiment, the closing plate 33 and the guide member 36 use the same member having a L-shaped cross section, only the lengths are different, and the inside of the wind guiding member 35 is processed. Since a sponge 37 that is easy to use is used, the wind guide member 35 can be easily provided at the tip of the car sill 4.

Embodiment 6 FIG. 9, 10 and 11
Shows still another embodiment of the elevator car according to the present invention. In the figure, the same parts as those of the third embodiment are designated by the same reference numerals. Reference numeral 20 is a basket threshold 4
A closing plate, which is provided at the front end of the floor and closes the gap S between the car sill 4 and the landing sill 6 on each floor, and 21 is the closing plate 2.
0 is formed at predetermined intervals in the longitudinal direction of the car 2 through which the wind passes while the car 2 is descending, and 12 is formed in a rectangular plate shape.
Further, reference numeral 13 is formed of a synthetic resin material such as styrofoam in an inverted triangular shape having the same thickness as the closing plate 20, and
It is a wind guide member that is attached below the closing plate 20 to the front drop 12 with an adhesive or the like and guides the wind generated during the descent of the car 2 to the notch 21. The closing plate 20 is made of an elastic material such as rubber, and is attached to the upper end of the wind guide member 13 by directly adhering it with an adhesive.

In such a configuration, the wind generated when the car 2 descends is the tapered portion 1 of the wind guide member 13.
Since it is guided to the cutout portion 21 by 3a and passes through the cutout portion 21, there is an effect that a large wind noise and a wind collision noise generated by the closing plate 20 can be reduced. In each of the first to fifth embodiments, there is a gap between the closing plate and the wind guide member (for example, in the case of the third embodiment, see FIG. 5). The upper end portion of the wind guide member 13 is directly attached to the plate 20 with an adhesive, and the collision noise of the wind caused by the gap can be eliminated, and the effect is remarkable. Further, since the closing plate 20 is attached to the front drip 12 via the wind guide member 13, the attachment metal fitting 7a for attaching the closing plate 20 to the car sill 4 is unnecessary, and the effect of reducing the number of attachment steps and the manufacturing cost is achieved. There is also.

Then, for example, the descending speed is 210 m / mi
In the case of the n-type elevator, as a result of investigating the generation state of the wind noise of this embodiment, it was found that the noise can be suppressed to 40 dB, and the noise can be reduced by about 18 dB as compared with the conventional example.

As described above, according to the elevator car of the present invention, since the plurality of wind passage holes through which the wind generated when the car descends is passed through the closing plate, are provided.
Similar to the conventional example, it is possible to prevent accidentally dropping an object in the gap between the car sill of the car and the sill of the car on each stop floor, and the wind noise and wind when the car descends. It is effective in reducing the collision noise.

Further, according to the elevator car of the present invention, the blocking plate provided at the front end of the car sill of the car is provided with a notch through which the wind generated when the car descends can pass. Since a wind guide member for guiding the wind to the cutout portion is provided below the closing plate in the longitudinal direction of the car, the wind generated when the car descends is blocked by the wind guide member. By being guided to the cutout portion of the plate and passing through the cutout portion, there is an effect that wind noise and collision noise are reduced.

Further, according to the elevator car of the present invention, since the wind guiding member is brought into contact with the closing plate, there is no gap between the wind guiding member and the closing plate, and the wind cutting is caused by the gap. No noise or collision noise is generated, and wind noise and impact noise are further reduced.

Further, according to the car of the present invention, since the closing plate is made of the elastic material, there is an effect that damage due to a falling impact of a falling object can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of an elevator car according to the present invention.

FIG. 2 is a perspective view of a sill portion in FIG. 1 showing an attachment state of a closing plate.

FIG. 3 is a perspective view showing another embodiment of the elevator car according to the present invention.

FIG. 4 is a perspective view of a sill portion showing still another embodiment of the elevator car according to the present invention.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a front view of essential parts showing another embodiment of the elevator car according to the present invention.

FIG. 7 is a main part front view showing another embodiment of the elevator car according to the present invention.

FIG. 8 is a main part front view showing another embodiment of the elevator car according to the present invention.

FIG. 9 is a perspective view showing another embodiment of the elevator car according to the present invention in which the closing plate and the wind guide member are attached.

FIG. 10 is a cross-sectional view taken along the line XX in FIG.

FIG. 11 is a perspective view of an integrally configured closing plate and wind guide member in FIG.

FIG. 12 is a vertical cross-sectional view showing an example of a conventional elevator car.

[Explanation of symbols]

2 cages, 4 cage sills, 6 platform sills, 8,
9,10,20,25,33 Blocking plate, 8a Wind passage hole 11,21 Notch, 13,27,32,35 Wind guide member.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeo Shintani 2-6-2 Otemachi, Chiyoda-ku, Tokyo Sanryo Electric Building Techno Service Co., Ltd.

Claims (4)

[Claims] 1. An elevator car comprising a closing plate provided at a leading end of a car sill of a car and closing a gap between the car sill and a landing sill on each stop floor of the car, wherein the blockage is provided. An elevator car, wherein the plate is provided with a plurality of air passage holes through which the wind generated when the car descends can pass. 2. An elevator car comprising a closing plate provided at a leading end of a car sill of a car and closing a gap between the car sill and a landing sill of each stop floor of the car, wherein the block is the block. Windings that allow the wind generated when the car descends to pass through are provided at predetermined intervals in the longitudinal direction of the closing plate, and wind that guides the wind to the notches below the closing plate. An elevator car characterized by being provided with a guide member. 3. The elevator car according to claim 2, wherein a wind guide member is in contact with the closing plate. 4. The elevator car according to any one of claims 1 to 3, wherein the closing plate is made of an elastic material.