JP3453879B2 - escalator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an escalator installed on an existing staircase.

[0002]

2. Description of the Related Art Conventionally, an escalator installed on an existing stairway is constructed as described in, for example, Japanese Patent Laid-Open No. 59-190179.

[0003]

The above-mentioned prior art has not taken into consideration the reduction of the renovation work of the existing stairs and the reduction of the installation space.

One of the objects of the present invention is to provide an escalator capable of minimizing the work of remodeling existing stairs.

Another object of the present invention is to provide an escalator capable of minimizing an increase in installation space in the height direction.

[0006]

[Means for Solving the Problems] The above-mentioned object is configured such that the forward path side of a moving step connected endlessly is moved above the existing stairs, and the return path is moved below the existing stairs. Then , move at the upper and lower ends of the existing stairs.
This is achieved by passing the steps through the front and back of the existing stairs .

[0007]

According to the above construction, since the moving steps are penetrated through the upper and lower ends of the existing stairs to the front and back of the existing stairs, the renovation work can be minimized and the return side of the moving steps can be Since it passes through the lower side of the existing stairs, the increase of the installation space in the height direction of the escalator on the existing stairs can be suppressed by the amount of the return step of the moving steps.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the escalator according to the present invention will be described below with reference to FIG. The existing staircase 2 installed between the upper floor 1U and the lower floor 1D of the building has a stair foundation 4 in which the upper part is connected to the upper floor 1U and the lower part is embedded in the lower floor 1D.
The staircase frame 3 is supported by the staircase 3 and is supported at its middle by a support column 5, and a molded staircase 6 formed on the staircase frame 3 with, for example, concrete.

Through holes 7A, 7 penetrating the front and back of the staircase frame 3 and the molding staircase 6 of the existing staircase 2 respectively.
B, 8A, 8B are provided, and a plurality of moving steps 9 are connected endlessly through the through holes through a step chain 9C. Step chain 9C connecting these moving steps 9
Is wound around the drive chain wheel 10 at the upper reversal section, and is wound around the driven chain wheel 11 at the lower reversal section.
The idler chain 12 is wound around A and 8A.

The forward side 9A of the moving step 9 thus connected runs on a guide rail (not shown) laid in the upper frame 13, and the return side 9B is in the lower frame 16. It is configured to travel on a laid guide rail (not shown).

The upper frame 13 is installed on the upper side of the existing stairs 2, the lower frame 16 is installed on the lower side of the existing stairs 2, and each of the frames 13 and 16 has the through holes 7A, 7B, 8A, 8B. Are connected through.

Further, the upper frame body 13 fixes the balustrade panels 14 along both sides of the forward steps 9A of the moving steps 9, and the moving handrails which move on the periphery of the balustrade panel 14 in synchronization with the moving steps 9. I am guiding fifteen.

An upper machine room 17 extending over the front and back of the existing stairs 2 is formed at a connecting portion between upper ends of the upper frame 13 and the lower frame 16, and a lower machine room is formed at a lower end of the upper frame 13. 18 is formed. A well-known drive device 19 is installed on the back side of the stairs in the upper machine room 17, and is configured to rotate the drive chain wheel 10 via a drive chain 21 wound around a small chain wheel 20.

In the escalator having the above-mentioned structure, when the drive chain wheel 10 is rotated by the drive device 19 to be driven upward, each traveling step 9 on the forward path side 9A connected to the step chain 9C has a drive chain wheel 10 at the upper end. The direction is changed by the idle chain wheel 12, and the lower side of the existing stairs 2 is moved to the return side 9B through the upper through holes 7A and 8A. Each of the moving steps 9 moved to the return side is guided into the upper frame 13 through the lower through holes 7B and 8B, and moves toward the lower machine room 18. Each moving step 9 is further converted in the moving direction by the driven chain wheel 11 in the lower machine room 18, returns to the outward path 9A, and continuously transports passengers.

According to the above-mentioned embodiment, the upper frame 13 for guiding the outward side 9A of the moving step 9 is installed on the existing stairs 2,
Since the lower frame 16 for guiding the return side 9B of the moving step 9 is installed below the existing stairs 2, compared to the case where the forward side 9A and the return side 9B of the moving steps 9 are installed above the existing stairs 2. As a result, the height of the escalator located above the existing stairs 2 is reduced, which saves space. Since the lower side of the existing stairs 2 is a dead space in the first place, there is no particular restriction even if the lower frame 16 for guiding the return path 9B of the moving step 9 is installed there.

Further, according to the above construction, since the through holes 7A, 7B, 8A, 8B are only opened in the upper and lower parts of the existing stairs 2, respectively, there is no significant remodeling work of the existing stairs 2.

In addition, since the upper machine room 17 is provided over the lower side of the existing stairs 2, the space for maintenance and inspection of the drive unit 19 is widened, and the maintenance and inspection work can be performed in a comfortable posture. Further, since it is a wide upper machine room 17, a well-known tread surface cleaning body SC for cleaning the tread surface of the moving step 9 and a dust storage box DB can be installed therein, and a clean tread surface can be provided to passengers.

By the way, when the width of the existing stairs 2 is almost equal to the width of the new escalators, the new escalators are installed over the entire width of the existing stairs 2, and the width of the existing stairs 2 is larger than the width of the new escalators. If the new escalator is installed close to one side of the existing stairs 2 in the case of a large space, it is possible to obtain an escalator installed in parallel with the existing stairs 2.

Next, a second embodiment will be described with reference to FIGS. In this embodiment, a new escalator is installed by using a part of the existing stairs installed on the platform of a station, for example.

In the existing stairs 2 installed between the upper floor 1U and the lower floor 1D, the upper portion is connected to the upper floor 1U and the lower portion is supported by the stair foundation 4 embedded in the lower floor 1D, and the middle portion. Is prop 5
The staircase frame 3 is supported by the staircase frame 3, and the staircase frame 3 is formed on the staircase frame 3 with, for example, concrete. This basic structure is the same as that of the above-mentioned embodiment, and the same reference numerals as those in the above-mentioned embodiment indicate the same things.

Generally, the existing stairs 2 of the station are provided with a horizontal landing 2H in the middle thereof, and the staircase frame 3 and the molding stairs 6 are also formed with a slanted portion vertically around the middle landing 2H. The upper part of the existing stairs 2 is covered with a roof R over the entire length. Therefore, the distance H1 between the existing stairs 2 on the upper side and the roof R centering on the middle landing 2H is large, and the distance H2 between the existing stairs 2 on the lower side and the existing roof R centering on the middle landing 2H is small. Therefore, the interval H1 is determined based on this interval H2.

When the new escalator is installed in such a state, the forward step side 9A of the moving step 9 is placed on the existing stairs 2.
When the upper frame body that supports the vehicle is installed, the above-mentioned interval H2 becomes small, the passenger's head gets stuck on the roof R, and the passenger's hand easily reaches, which is extremely dangerous.

Therefore, when installing a new escalator without rebuilding the existing roof R, the intermediate horizontal landing 2
The molding staircase 6 below H is scraped off only at the position 7D where the new escalator is installed to expose the staircase frame 3, and the upper frame body 22 on which the moving step 9 on the outward path 9A is guided is exposed on the staircase frame 3 Has been installed. The upper frame 22 is fixed above the molding stairs 6 with a space above the intermediate horizontal landing 2H.

In addition, on the upper part of the molding stairs 6 and the staircase frame 3,
As in the first embodiment, the through holes 7A and 8A are respectively formed.
And a through hole 7B is also formed in the lower part of the staircase frame 3. Then, on the back side of the existing stairs 2, a lower frame body 23 for guiding the moving steps 9 on the return side 9B is installed, and upper portions of the upper frame body 22 and the lower frame body 23 penetrate through the through holes 7A, 8A. Are connected by the upper machine room 24, and the lower part of the lower frame 23 is
The connection frame 25 connects the upper frame 22 above the lower end thereof.

In the upper machine room 24, a small idle chain wheel 2
A drive device 19 for driving the drive chain wheel 10 via the drive chain 6 and the drive chain 21 is installed. When the upper machine room 24 has a size reaching the lower floor 1D as shown by the chain double-dashed line, this drive device 19 is installed on the lower floor 1D to further facilitate maintenance and inspection work. be able to.

With the above structure, an escalator attached to the existing staircase 2 is installed. As shown in FIG. 3, the existing staircase 2 is provided with a partition wall 27 to partition the existing staircase 2 from the escalator. It is possible to prevent passengers from jumping on and off between the stairs 2 and the escalator.
28 is a handrail for the existing stairs 2. When the partition 27 is provided so that the width of the existing staircase 2 is narrowed and a cramped feeling is given, the partition 27 may be a transparent partition made of, for example, an acrylic resin. In addition, the exterior plate 29 that covers the side surface of the escalator without providing a partition wall on the side of the existing stairs 2
May be used as a partition wall. In this case, the handrail 28 needs to penetrate the exterior plate 29 and be supported by the upper frame body 22.

According to the above-described embodiment, the distance between the moving steps 9 of the new escalator and the existing roof R is slightly reduced by about one step of the moving steps 9, so that the new escalator can be installed without modifying the existing roof R. Can be installed.

In each of the above embodiments, the lower frame 16,
The connection portion to the upper frame bodies 13 and 22 of 23 is formed horizontally, because the existing structure is the return side 9 of the moving step 9.
As it becomes an obstacle to B, avoiding it and lower frame 1
By installing 6 and 23 in parallel with the upper frame bodies 13 and 22,
This is to avoid the work of digging the lower floor 1D, and to reduce the reconstruction work in any case. In FIG. 2, the part of the moving step 9 on the outward side 9A facing the upper side of the stairs foundation 4 has a gentle slope, and the step is small, but this structure is a staircase that becomes an obstacle when installing a new escalator. This is a device for preventing the foundation 4 from interfering with the moving step 9 on the outward path 9A in order to avoid the return step 9B on the moving step 9.

[0029]

According to the present invention, it is possible to obtain an escalator capable of minimizing the renovation work of the existing stairs and minimizing the increase of the installation space in the height direction.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of an escalator according to the present invention.

FIG. 2 is a schematic side view showing another embodiment of the escalator according to the present invention.

FIG. 3 is an enlarged vertical sectional view taken along the line III-III in FIG.

[Explanation of Codes] 1U ... upper floor, 1D ... lower floor, 2 ... stairs, 9 ... moving steps, 9A ... outward side, 9B ... return side, 13 ... upper frame, 16
... bottom frame.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B66B 21/02

Claims (5)

(57) [Claims] 1. In an escalator installed on an existing staircase, the forward side of a moving step that is endlessly connected and moves moves above the existing step, and the return side moves below the existing step. On top of the existing stairs
At the lower end, the moving step is penetrated to the front and back of the existing stairs.
An escalator characterized by being made . 2. In an escalator installed on an existing staircase, the forward side of a moving step that is endlessly connected and moves moves above the existing step, and the return side moves below the existing step. On top of the existing stairs
At the lower end, the moving step is penetrated to the front and back of the existing stairs.
Was Rutotomoni, escalators, characterized in that the drive mechanism of the moving footstep was placed below the existing footstep. 3. An escalator installed on an existing staircase, wherein the forward step side of a moving step connected endlessly is moved above the existing step step, and the return step side is moved below the existing stair step. On top of the existing stairs
At the lower end, the moving step is penetrated to the front and back of the existing stairs.
Was Rutotomoni, escalators, characterized in that the drive mechanism of the moving footstep was placed floor under the existing footstep. 4. An escalator installed on an existing staircase, wherein an upper frame body is provided on an upper side of the existing staircase, and a lower frame body is provided on a lower side of the existing staircase, and the upper frame body and the lower frame body are provided. Are connected through the upper and lower parts of the existing staircase to the front and back sides , respectively, and the forward and backward paths of the moving steps that are endlessly connected and moved in the upper and lower frame bodies are guided and supported. escalator. 5. An escalator installed on an existing staircase, wherein an upper frame body is provided on the upper side of the existing staircase, and a lower frame body is provided on the lower side of the existing staircase, and the upper frame body and the lower frame body are provided. To connect the upper and lower parts of the existing stairs to the front and back, respectively , to form a lower machine room at the lower end of the upper frame, and to connect the upper and lower ends of the upper and lower frames to the front and back of the existing stairs. An escalator, which forms an upper machine room to straddle, and guides and supports the forward path side and the return path side of a moving step that is endlessly connected and moves in the upper frame body and the lower frame body.