JPH061569A - Elevator cage - Google Patents

Abstract

PURPOSE:To enhance comfort by attenuating vibration transmitted to inner walls from outer walls via connecting sections, and concurrently lowering noise coming in a cage. CONSTITUTION:The cage is furnished with a plural number of inner walls 21 which form the circumference of the cage 36 together with a cage floor and a cage ceiling, and with a plural number of outer walls 29 disposed at the outside of the respective inner walls 21 with a specified space parted. In this case, since only the upper and lower ends of the outer walls are connected to the respective inner walls 21, the inner walls are connected to the outer walls 29 only at their upper and lower end sections. This constitution thereby allows their connecting sections to be decreased in the whole of cross sectional areas. As a result, when the outer walls 29 are excited due to the disturbance of circumferential air flow as the cage 36 is moved up and down, vibration transmitted from the outer walls 29 to the inner walls 21 through the connecting sections is attenuated, so that noise coming in the cage can thereby be lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car room, and more particularly, to a double structure having an inner wall and an outer wall in order to prevent noise due to turbulence of the air flow generated around the elevator car during lifting and lowering. It concerns the elevator cab.

[0002]

2. Description of the Related Art With the recent increase in the speed of elevators, the turbulence of the air flow generated around the cab when it is moved up and down gradually increases, and the turbulence of the air flow causes the outer wall of the cab to vibrate and penetrate inside. The problem of increased noise has been highlighted. Therefore, various measures for noise reduction have been proposed, and as one example, Japanese Patent Publication No. 55-
The thing described in 2389 can be mentioned.

FIG. 4 is a longitudinal sectional view showing a car room of the conventional elevator, FIG. 5 is a sectional view taken along line XX of FIG. 4 showing a car room of the conventional elevator, and FIG. 6 is a car room of the conventional elevator. It is an A section expanded sectional view of Drawing 5 showing a section structure of an inner wall and an outer wall.

In the figure, 1 is a car floor of an elevator, 2
An inner wall made of a steel plate, which is erected on the peripheral portion of the car floor 1 and has an outer surface of the car floor 1 coated with a soundproof paint 3, has a left end and a right end of the inner wall 2 at right angles to the outer side. A connecting surface 2b formed by bending is an adhesive surface bent at a right angle from the connecting surface 2a, and the connecting surface 2a is a connecting surface 2a of another inner wall 2 adjacent to the inner wall 2 and having the same structure. Overlap with the bolt 4
And the nut 5 are fastened to each other. 6 is the adhesive surface 6
a vertical section made of a steel plate that reinforces the inner wall 2 by reinforcing the inner wall 2 by welding the leg 6b to approximately the center of the outer side surface of the inner wall 2 so as to extend in the vertical direction with a convex cross-section consisting of a and a pair of leg portions 6b. Reinforcement member,
Reference numeral 7 denotes a rubber of an elongated vibration isolator 8 which extends vertically and is bonded to the bonding surface 2b of the connecting surface 2a and the bonding surface 6a of the vertical reinforcing member 6, and 9 is bonded to the rubber 7 on one side. ,
It is a steel plate of the vibration isolator 8 in which a large number of stud bolts 9a are erected on the other side surface at predetermined intervals.

Reference numeral 10 is arranged on the outer side of the inner wall 2 at a predetermined interval, and a soundproof paint 11 is applied to the surface facing the inner wall 2, and a vertical reinforcing member 12 having an L-shaped cross section is welded. The outer wall is made of a steel plate, and the stud bolt 9a of the vibration isolator 8 is inserted into a through hole (not shown) formed in the outer wall 10, and the nut 13 is screwed from the opposite side. The outer wall 1 with a gap 14 formed between
0 is fixed. Although not shown, the upper and lower ends of the outer wall 10 are also fixed to the upper and lower ends of the inner wall 2 via the vibration isolator 8. Reference numeral 15 denotes a ceiling properly attached to the upper end portion of the inner wall 2. The ceiling 15, the car floor 1, and the inner walls 2
The outer wall 10 and the outer wall 10 form a box-shaped cab 16.

As described above, in the conventional car room 16 of the elevator, the inner wall 2 and the outer wall 10 are connected through the vibration isolator 8 at the left and right ends, the upper and lower ends, and the center, and the car room 16 is lifted and lowered. When the outer wall 10 is vibrated due to the turbulence of the surrounding airflow, the vibration transmitted from the outer wall 10 to the inner wall 2 via the connecting portion is attenuated by the rubber 7 of the vibration isolator 8, and thus the cab 16 We are trying to reduce the noise that enters inside.

[0007]

In the conventional elevator car room 16, the vibration isolator 8 is provided at the connecting portion between the inner wall 2 and the outer wall 10 as described above, and the vibration transmitted from the outer wall 10 to the inner wall 2 is provided. Although it is damped by the rubber 7 of the vibration isolator 8, it is not possible to completely block the vibration, and some vibration is transmitted to the inner wall 2. Therefore, noise may enter the cab 16, and particularly in a high-speed elevator exceeding 300 m / min, a considerable amount of noise may intrude and cause passengers to feel uncomfortable.

Therefore, the present invention reduces the vibration transmitted from the outer wall to the inner wall through the connecting portion, and also reduces the noise that enters the car interior to improve the comfort of the elevator car. Is the challenge.

[0009]

According to a first aspect of the present invention, there is provided a cab of an elevator according to a first aspect of the present invention. The cab has a plurality of inner walls that form a skirt of the cab together with a car floor and a ceiling. A plurality of outer walls, which are arranged and are connected to only the upper and lower ends of each inner wall, are provided.

According to a second aspect of the present invention, an elevator car room is provided with a plurality of inner walls that form the periphery of the car room together with a car floor and a ceiling, and is provided outside each of the inner walls at predetermined intervals. The inner wall is provided with a plurality of outer walls having only upper and lower ends and left and right ends connected to each other.

[0011]

In the invention of claim 1, since the inner wall and the outer wall are connected only at the upper and lower end portions, the total cross-sectional area of the connecting portion is reduced, and as a result, the surrounding area of the surrounding as the cab is moved up and down. When the outer wall is vibrated due to the turbulence of the air flow, the vibration transmitted from the outer wall to the inner wall via the connecting portion is reduced, and the noise that enters the car interior is reduced.

According to the second aspect of the invention, since the inner wall and the outer wall are connected only at the upper and lower ends and the left and right ends, the total cross-sectional area of the connecting parts is reduced, and as a result, the cab is lifted and lowered. When the outer wall is vibrated due to the turbulence of the surrounding airflow, the vibration transmitted from the outer wall to the inner wall through the connecting points is reduced, the noise that enters the car interior is reduced, and the inner wall and the outer wall are By connecting the entire circumference, it has a thin box shape and high rigidity, which contributes to the improvement of the strength of the cab.

[0013]

【Example】

<First Embodiment> A first embodiment corresponding to the invention of claim 1 will be described below. FIG. 1 is an enlarged cross-sectional view showing a cross-sectional structure of an inner wall and an outer wall of a car room of an elevator which is a first embodiment of the present invention, and FIG. 2 is an inner wall and an outer wall of a car room of an elevator which is a first embodiment of the present invention. It is the YY sectional view taken on the line of FIG. 1 which shows a cross-section. The overall structure of the elevator cab 36 of the first embodiment is the same as that of the cab 1 described in the prior art.
Since it is almost the same as 6, the difference will be mainly described.

In the figure, reference numeral 21 is an inner wall made of a steel plate in which a soundproof paint 22 is applied to the outer side surface of the car floor 1, and the left and right ends are bent outward at a right angle to form a connecting surface 21a. The connecting surface 21a overlaps with the connecting surface 21a of another inner wall 21 having the same structure adjacent to the inner wall 21, and the bolt 23
And a nut 24 are fastened to each other. Reference numeral 25 denotes a vertical reinforcing member made of a steel plate having a convex cross section and extending in the vertical direction, and a pair of leg portions 25a are welded to approximately the center of the outer surface of the inner wall 21, and 26 denotes a crank shape in cross section. Vertical reinforcing members made of steel plates that extend in the up-down direction and are welded to the left end and the right end of the outer surface of the inner wall 21.
The inner wall 2 is reinforced by 5, 26. 27 is the inner wall 21
Of the steel plate, which is welded to the upper end of the inner wall 21 and has a connecting surface 27a formed on one side thereof, and 28 is a lower horizontal reinforcement of the steel plate, which is welded to the lower end of the inner wall 21 and formed with the connecting surface 28a on one side thereof. Which is a member, and the connecting surface 27a of each reinforcing member 27, 28,
Stud bolts 27b and 28b are erected on 28a.

The reference numeral 29 is provided on the outer side of the inner wall 21 at a predetermined interval, the surface facing the inner wall 21 is coated with the soundproof coating 30, and the vertical reinforcing member 31 having an L-shaped cross section is welded. And an outer wall 29a made of a steel plate is a connecting surface formed by bending the left end and the right end of the outer wall 29 outward at a right angle,
The connecting surface 29a overlaps with the connecting surface 29a of another outer wall 29 having the same structure adjacent to the outer wall 29, and is fastened to each other with a bolt 37 and a nut 38. 32 is the outer wall 2
9 is an upper lateral reinforcing member made of a steel plate that is welded to the upper end of 9 and has a connecting surface 32a formed on one side, and 33 is a lower horizontal member made of steel plate that is welded to the lower end of the outer wall 29 and has a connecting surface 33a formed on one side. Reinforcement member, each lateral reinforcement member 27, 28 on the inner wall 21 side
The stud bolts 27b and 28b are inserted into through holes (not shown) formed in the connecting surfaces 32a and 33a of the lateral reinforcing members 32 and 33 on the outer wall 29 side, and the nuts 34 are inserted from the opposite side.
Are screwed together, and as a result, the outer wall 29 is fixed with a gap 35 formed between the inner wall 21 and the outer wall 29. The inner wall 21, the outer wall 29, the car floor 1 and the ceiling 15 (shown in FIGS. 4 and 5) form a box-shaped car room 36.

As shown in FIG. 1, in the space 35, each of the vertical reinforcing members 25 and 26 on the inner wall 21 side has an outer wall 29.
Are separated from each other without being connected to. That is, in the car room 36 of the first embodiment, the inner wall 21 and the outer wall 29 are connected only at the positions of the lateral reinforcing members 27, 28, 32, 33 at the upper and lower ends, and the car described in the conventional art. Compared to the case where the inner wall 2 and the outer wall 10 are connected at the left and right ends, the upper and lower ends, and the center like the chamber 16, the left and right ends and the center are not connected, so that the total cross-sectional area of the connecting portion is significantly reduced. is doing. Therefore, when the outer wall 29 is vibrated due to the turbulence of the surrounding airflow as the car room 36 moves up and down, the vibration transmitted from the outer wall 29 to the inner wall 21 via the connecting portion is drastically reduced and enters the car room 36. The noise generated is greatly reduced.

As described above, the elevator car rooms 36 of the first embodiment are laterally connected to each other to form the car floor 1
And a plurality of inner walls 21 that form the periphery of the cab 36 together with the ceiling 15 and a plurality of inner walls 21 that are arranged at predetermined intervals outside the inner walls 21 and that are connected to the inner walls 21 only at the upper and lower ends, respectively. And an outer wall 29 of Therefore, the total cross-sectional area of the connection portion between the inner wall 21 and the outer wall 29 can be significantly reduced, and the vibration transmitted from the outer wall 29 to the inner wall 21 via the connection portion can be significantly reduced. Therefore,
It is possible to significantly reduce the noise that enters the cab 36, prevent the passengers from feeling uncomfortable due to the noise, and greatly improve the comfort inside.

<Second Embodiment> A second embodiment corresponding to the invention of claim 2 will be described below. FIG. 3 is an enlarged cross-sectional view showing a cross-sectional structure of the inner wall and the outer wall of the elevator cab according to the second embodiment of the present invention. The overall structure of the elevator cab 44 according to the second embodiment is substantially the same as that of the cab 36 described in the first embodiment, and therefore, the same parts are designated by the same reference numerals and redundant description will be given. Will be omitted, and the differences will be mainly explained.

In the figure, 41 is a connecting surface formed on the vertical reinforcing members 26 at the left and right ends of the inner wall 21, and stud bolts 41a are provided upright, and 42 is welded to the left and right ends of the outer wall 29 to connect to one side. The stud bolt 41a of the vertical reinforcing member 26 on the inner wall 21 side is the connecting surface 4 of the vertical reinforcing member 42 on the outer wall 29 side.
The nut 43 is inserted into a through hole (not shown) formed in 2a and is screwed from the opposite side. The inner wall 21, the outer wall 29, the car floor 1 and the ceiling 15 (shown in FIGS. 4 and 5) form a box-shaped car chamber 44.

That is, in the cab 44 of the second embodiment,
The inner wall 21 and the outer wall 29 have horizontal reinforcing members 27 at the upper and lower ends,
Vertical reinforcing members 2 at 28, 32, and 33 and both left and right ends
6 and 42 are connected only, and the center is connected as compared with the case where the inner wall 2 and the outer wall 10 are connected at the left and right ends, the upper and lower ends, and the center like the car room 16 described in the related art. Since it is not connected, the total cross-sectional area of the connecting point is reduced. Therefore, when the outer wall 29 is vibrated due to the turbulence of the surrounding airflow as the car room 44 moves up and down, the vibration transmitted from the outer wall 29 to the inner wall 21 via the connecting portion is reduced, and the car wall 44 enters the car room 44. The noise generated is reduced.

In addition, the inner wall 21 and the outer wall 29 facing each other form a thin box-like shape by connecting the entire peripheries to each other. Therefore, as compared with the case where only the upper and lower ends are connected as in the first embodiment. As a result, its rigidity is greatly improved and it is difficult for it to be deformed by an external force.

On the other hand, as is apparent from FIG. 3, in the cab 44 of the second embodiment, the bolts 23 and the nuts 24 for fastening the adjacent inner walls 21 are exposed to the outside of the cab 44. Therefore, the assembly procedure is as follows.
After connecting the outer wall 29 to the inner wall 21,
9 together with bolts 23 and nuts 24. Therefore, the connecting work of the adjacent inner walls 21 can only be carried out at the installation site of the elevator,
The work of connecting the outer wall 29 to the inner wall 21 can be efficiently performed in the factory as the final step of manufacturing these members. On the other hand, in the conventional cab 16 shown in FIG. 6 or the cab 36 of the first embodiment shown in FIG. 1, the bolts 4, 23 and the nuts 5, 24 for fastening the inner walls 2, 21 adjacent to each other are Since they are hidden in the voids 14 and 35, the inner walls 2 and 21 adjacent to each other are connected by the bolts 4 and 23 and the nuts 5 and 24, and then the inner walls 2 and 2 are connected.
It is necessary to connect the outer walls 10 and 29 to 1, and it is difficult to perform the work because all the work is naturally carried out at the elevator installation site. That is, the cab 44 of the second embodiment can facilitate the assembling work.

As described above, the elevator car rooms 44 of the second embodiment are laterally connected to each other to form the car floor 1
And a plurality of inner walls 21 that form the periphery of the cab 44 together with the ceiling 15 and the inner walls 21 are provided at predetermined intervals outside the inner walls 21, and only upper and lower ends and left and right ends are connected to the inner walls 21, respectively. And a plurality of outer walls 29 that are formed.

Therefore, it is possible to reduce the total cross-sectional area of the connecting portion between the inner wall 21 and the outer wall 29 and reduce the vibration transmitted from the outer wall 29 to the inner wall 21 via the connecting portion. Therefore, it is possible to reduce the noise that enters the cab 44, prevent the passengers from feeling uncomfortable due to the noise, and greatly improve the comfort inside. Further, since the entire circumferences of the inner wall 21 and the outer wall 29 that face each other are connected, the rigidity thereof is significantly improved, and it is difficult for the outer wall 29 to be deformed by an external force. Therefore, the strength of the cab 44 can be significantly improved.

On the other hand, since the bolts 23 and nuts 24 for fastening the adjacent inner walls 21 are exposed to the outside of the cab 44, the outer walls 29 are connected to the individual inner walls 21, and then the adjacent inner walls 21 are connected. The bolts 23 and the nuts 24 can be assembled in a procedure of connecting with each other. As a result, the work of connecting the outer wall 29 to the inner wall 21 can be efficiently performed in the factory, and the assembling work can be significantly facilitated.

[0026]

As described above, the elevator cab according to the first aspect of the present invention has a plurality of inner walls that form the periphery of the cab together with the car floor and the ceiling, and a predetermined space is provided outside each of the inner walls. Since the inner wall and the outer wall are connected to each other only at the upper and lower ends, the total cross-sectional area of the connecting part is reduced. As a result, when the outer wall is vibrated due to the turbulence of the surrounding airflow as the car room moves up and down, the vibration transmitted from the outer wall to the inner wall through the connecting points is reduced, and the noise that enters the car room is reduced. Therefore, it is possible to prevent the passengers from feeling uncomfortable due to noise, and it is possible to significantly improve the internal comfort.

The cab of the elevator according to the invention of claim 2 is
A plurality of inner walls that form the periphery of the cab room together with the car floor and the ceiling, and a plurality of inner walls that are arranged at predetermined intervals outside each of the inner walls and that are connected only to the upper and lower ends and the left and right ends of each inner wall. Since it has an outer wall, the inner wall and the outer wall are connected only at the top and bottom ends and the left and right ends, and the total cross-sectional area of the connection part is reduced. When the outer wall is vibrated, the vibration transmitted from the outer wall to the inner wall via the connecting point is reduced,
It is possible to reduce the noise that enters the cab, so that it is possible to prevent the passengers from feeling uncomfortable due to the noise, and it is possible to greatly improve the comfort inside. Since the entire periphery is connected, it has a thin box shape and high rigidity, and the strength of the cab can be significantly improved.

[Brief description of drawings]

FIG. 1 is an enlarged sectional view showing a sectional structure of an inner wall and an outer wall of a cab of an elevator according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line YY of FIG. 1 showing a sectional structure of the inner wall and the outer wall of the cab of the elevator according to the first embodiment of the present invention.

FIG. 3 is an enlarged sectional view showing a sectional structure of an inner wall and an outer wall of a cab of an elevator according to a second embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a conventional elevator cab.

5 is a cross-sectional view taken along line XX of FIG. 4, showing a conventional elevator cab.

6 is an enlarged cross-sectional view of a portion A of FIG. 5 showing a cross-sectional structure of an inner wall and an outer wall of a conventional elevator cab.

[Explanation of symbols]

 1 car floor 15 ceiling 21 inner wall 29 outer wall 36,44 car room

Claims (2)

[Claims] 1. A plurality of inner walls that are laterally connected to each other and that form the periphery of a cab room together with a car floor and a ceiling; On the other hand, the cab of the elevator is provided with a plurality of outer walls having only upper and lower ends connected to each other. 2. A plurality of inner walls which are laterally connected to each other and constitute the periphery of a cab room together with a car floor and a ceiling, and a plurality of inner walls which are arranged outside the respective inner walls with a predetermined interval, On the other hand, an elevator cab, characterized by comprising a plurality of outer walls having only upper and lower ends and right and left ends connected respectively.