JPH05310393A - Control device for escalator - Google Patents

Abstract

PURPOSE:To improve reliability during operation for a wheelchair and to suppress the influence of a trouble to a minimum through rapid detection of abnormality by a method wherein an escalator formed such that the effective horizontal plane area of a tread surface is deformed and increased during conveyance of the wheelchairs is provided with a self-checking function. CONSTITUTION:An operator 5 starts an escalator 1 and right after that, the electrical energization test of a special tread position detecting switch is first effected. As a result, when a test result is ordinary, automatic transfer to control of a wheelchair operation mode is effected. After special treads 10-12 are decelerated and deformation operation is made by means of an energizing device 13, a state is checked by means of a special tread operation state check switch. As a result, when the result is normal, a tread is automatically accelerated. A state is also checked in a similar manner described above at the head 3 of an escalator and when the checked result is normal, transfer to normal operation is effected. Further, when abnormality occurs to operation or a function, operation of the escalator 1 is stopped at a current point of time, a state is displayed at a state display panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a special step which is configured so that the effective horizontal area of the step plate surface of the step can be deformed and expanded only when the wheelchair is transported, and a wheelchair operation command is issued. The present invention relates to a control device for an escalator capable of transporting a wheelchair that is configured to switch to a wheelchair operation mode and can improve reliability especially during wheelchair operation, and at the same time detect abnormalities such as failure. The present invention relates to an escalator control device that can be minimized.

[0002]

2. Description of the Related Art As an escalator capable of transporting a wheelchair, as a conventionally proposed method,
A wheelchair-combined escalator is generally used, which mechanically deforms and expands the steps or rows of steps on which a general user rides so that they can be loaded as a wheelchair when transporting a wheelchair. FIG. 5 is a schematic view showing a configuration example of this type of wheelchair-combined escalator. Figure 5
In the figure, reference numeral 1 denotes an escalator that is arranged so as to be inclined between the entrance 2 on the lower floor and the exit 3 on the upper floor, and 1a is its truss.

Further, 4 is a wheelchair user, 5 is an attendant, 6 is a call button provided at the entrance 2 for contacting the attendant 5, 7 is a wheelchair operation changeover switch provided on the parapet of the escalator 1, and 8 Is also the wheelchair drive button, 9
Is a step, and in the vicinity of the entrance 2 and the exit 3, the upper surfaces of the plurality of steps 9 are flat, and in the middle of the inclined part,
The upper surfaces of the steps 9 are configured to form a step with each other. Further, 10 is a first special step that forms a wheelchair step among a large number of steps 9, 11 is a second special step, and 12 is a third special step.

Furthermore, 13 is an urging device for deforming the special steps 10, 11, 12 into a wheelchair mountable state or returning to a normal operation state during wheelchair operation. Next, FIGS. 6 to 9 show the special steps 10 and 1 described above.
It is a schematic diagram showing an example of composition of 1 and 12.

6 to 9, 1a is a truss,
Reference numeral 13 is a special step urging device. Further, 13a is a rack attached to the urging device 13, and 14 is a rack 13
Pinion attached to the special step side that meshes with a, 1
5 is a transmission shaft, 16a and 16b are bevel gears, 17 is a transmission shaft,
Reference numeral 18 is a pinion, 19 is an engagement body in which a rack that meshes with the pinion 18 is formed, and 20 is a holding member for the engagement body 19. Further, the third special step 12 has an ascending step plate 12a, and is connected to the non-ascending side 12b of the step by a horizontal maintaining mechanism 21. The operation of the special steps 10, 11, 12 will be described below with reference to FIGS. 6 to 9.

In FIGS. 6 to 9, first, during normal operation, as shown in FIG. 7, the second special step 11 is not energized, the engagement body 19 is in the retracted position, and it is operated as a normal step. ..

On the other hand, during wheelchair operation, as shown in FIG. 8, the second special step 11 is urged so that the engaging body 19 advances to the position shown in the drawing and engages with the ascending step plate 12a. Then, when the step row travels after the completion of the engagement, as shown in FIG. 9, the step plate 12a is lifted by the engagement body 19 to form a substantially flat surface with the step plate surface of the second special step 11, and this state is maintained. The row of steps can travel on the outward path while keeping the same.

Next, when the wheelchair user uses the escalator 1, the attendant 5 is called by the attendant call button 6 at the entrance 2. Then, the clerk 5 informs the passengers of the escalator 1 that they will drive in a wheelchair, and waits for all to get off the exit 3. Then, when all the people get off the escalator 1, the wheelchair operation switching switch 7 is switched.

As a result, when the wheelchair operation control is started, the urging device 13 moves to a position where it is associated with the first to third special steps 10 to 12, and at the same time, the first to third special steps 10 to 12 are moved. Decelerates in front of the entrance 2, engages with the biasing device 13 at a low speed, and switches to a wheelchair mountable state.

At this time, the staff member 5 guides the wheelchair user to the special steps 10 to 12 and, after confirming the safety, pushes the wheelchair operation button 8. As a result, the steps are accelerated and the wheelchair is transported to the exit 3.

After that, the step decelerates again before the exit 3, and the clerk 5 pushes the wheelchair to get off. At this time, the first to third special steps 10 to 12 are returned to the normal operation by the urging device 13, and then the steps are accelerated again to return to the normal operation. In addition, above, although the case where the escalator was operated uphill was described, the same applies to the case where the escalator is driven down.

By the way, in such a wheelchair-combined escalator, the wheelchair user does not have many opportunities to use the escalator, and is usually used at unspecified time intervals.

Therefore, in the system in which the special steps 10 to 12 are deformed and the control system functions only when the wheelchair is transported as described above, the normal operation time is longer and the wheelchair operation function does not operate at normal times. In particular, how to ensure smooth operation of the mechanical structure and reliable opening and closing of electrical contacts such as switches is an important point from the viewpoint of improving reliability during wheelchair operation.

For this purpose, it is conceivable to make the material, surface treatment, parts, etc. of the structural portion extremely reliable, but it is a practical means in terms of cost and manufacturing period. It cannot be said that.

[0015]

In view of the above situation, recently, the emergence of a wheelchair-combined escalator having improved reliability during wheelchair operation has been strongly desired.

An object of the present invention is to provide a control device for an elevator which can improve the reliability during wheelchair operation and can minimize the influence of breakdown or the like by early detection of an abnormality. is there.

[0017]

In order to achieve the above object, in the present invention, in consideration of the use by a wheelchair, the special horizontal structure in which the effective horizontal area of the tread surface of the step can be deformed and enlarged only when the wheelchair is transported. An escalator control device that has a step and can convey a wheelchair that is configured to switch to a wheelchair operation mode when a wheelchair operation command is issued and drive the escalator according to a specific command given at a specific time. The automatic driving test is carried out to check the operation of the special steps and the state of the control system, and the check result is notified. Here, especially as the above specific command,
The specified command is automatically output immediately after the escalator is started. As the specific command, the specific command is automatically output when the escalator is started after being stopped for a predetermined time or longer. Further, as the specific command, the specific command is automatically output when the escalator is in operation.

[0018]

Therefore, in the control device for the escalator according to the present invention, the escalator automatically performs the test drive in the wheelchair operation mode in response to the specific command given at the specific time to check the operation of the special steps and the state of the control system. By providing the means for self-checking and notifying the check result, it becomes possible to execute the wheelchair operation semi-regularly regardless of the use in the wheelchair and check the system state.

As a result, when the operation and function are normal, the escalator is directly shifted to normal operation or stopped. When any abnormality is found, the operation of the escalator is stopped in that state and a maintenance request is output. As a result, the reliability during wheelchair operation can be improved, and the early detection of abnormalities can minimize the effects of failures and the like.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a control device for an escalator according to the first embodiment of the present invention.

That is, as shown in FIG. 1, the control device for the escalator of the present embodiment has a normal operation start switch 2
2, stop switch 23, wheelchair operation changeover switch 2
4, a wheelchair operation stop switch 25, a special step position detection switch 26, a special step operation state check switch 27, an escalator safety switch 28, a central processing unit 29, and a state display panel 30. Incidentally, 31 is an electric motor for driving the escalator, and 32 is a brake. Here, the normal operation start switch 22
Is provided on the balustrade of the escalator 1 and is for starting the normal operation of the escalator 1. The stop switch 23 is also provided on the balustrade of the escalator 1 and is for stopping the operation of the escalator 1. Furthermore, wheelchair operation changeover switch 24
Is for switching the operation of the escalator 1 from the normal operation to the wheelchair operation. Furthermore, the wheelchair operation stop switch 25 is also provided on the balustrade of the escalator 1 and is for stopping the wheelchair operation of the escalator 1.

On the other hand, the special step position detection switch 26 is
Similarly, it is provided along the guide rail of the escalator 1 and is for detecting the positions of the special steps 10 to 12.

The special step operating state check switch 27 is provided in front of and behind the urging device 13, and is for detecting that the special steps 10 to 12 are reliably switched. In addition, the escalator safety switch 28
Is for forcibly stopping the operation of the escalator 1 in an emergency.

On the other hand, the central processing unit 29 includes the normal operation start switch 22, the stop switch 23, the wheelchair operation changeover switch 24, the wheelchair operation stop switch 25, the special step position detection switch 26, the special step operation state check switch 27, and the escalator. A predetermined control process is performed based on each switch signal from the safety switch 28 to control the electric motor 31 for driving the escalator or the brake 32, and at the same time, a predetermined display content is output to the status display panel 30.

Here, as the predetermined control processing, in addition to the normal operation control processing of the escalator 1, a wheelchair operation mode of the escalator 1 is executed by a specific command given at a specific time (for example, immediately after starting the escalator). Automatically conducts a test drive to check the operation of the special steps 10 to 12 and the state of the control system, and performs a wheelchair mode test drive control process for notifying the check result. Further, the status display panel 30 is the central processing unit 2
The display contents from 9 are displayed on the screen.
Next, the operation of the control device for the escalator of the present embodiment configured as described above will be described using the flow chart shown in FIG.

In FIG. 1, a normal operation starting switch 22
When the escalator 1 is activated by the clerk 5 by the operation of, the conduction check of the special step position detection switch 26 is first performed immediately after that. As a result,
When the conduction state of each special step position detection switch 26 is normal, the control automatically shifts to the wheelchair operation mode,
Special steps 10-12 slow down. After deceleration, after the special steps 10 to 12 are deformed by the biasing device 13, the special step operating state check switch 27 checks the state. As a result, when the special steps 10 to 12 are operating normally, the steps automatically accelerate. Further, at the exit 3, similarly, the deceleration, the special step return operation check, and the automatic acceleration are performed. As a result of the above check, if the operation and function are normal, the escalator 1 is directly shifted to normal operation or stopped. If the operation or function is abnormal as a result of the check, the operation of the escalator 1 is stopped at that time, and the status is displayed on the status display panel 30.

As described above, the present embodiment is provided with the special steps 10 to 12 which are designed so that the effective horizontal area of the step surface of the step 9 can be deformed and enlarged only when the wheelchair is conveyed, considering the use by the wheelchair. In the control device of the escalator 1 capable of transporting the wheelchair configured to switch to the wheelchair operation mode when the wheelchair operation command is issued, the escalator 1 is controlled by a specific command automatically given immediately after the escalator 1 is activated. A test drive is automatically performed in the wheelchair operation mode, the operation of the special steps 10 to 12 and the state of the control system are self-checked, and the check result is notified to the state display panel 30.

Therefore, since the system check operation is performed semi-periodically and automatically in the wheelchair operation mode when the escalator 1 is started, the system is used less frequently and at unspecified time intervals. The reliability during wheelchair operation, which has a high possibility, can be remarkably enhanced, and the early detection of an abnormality can minimize the influence of a failure or the like.

Furthermore, the mechanical structures of the special steps 10 to 12 and the special step position detection switch 26 operate semi-periodically, so that mechanical familiarity and dust removal effect can be expected, and the same state can be expected. It is possible to reliably prevent a malfunction such as that in the related art, which is caused by a long period of time. As described above, it is not necessary to use highly reliable materials, surface treatments, parts, and the like for the structure portion as in the conventional case. Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 3 is a block diagram showing a configuration example of a control device for an escalator according to a second embodiment of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. Now, only different parts will be described. That is, the control device for the escalator according to the present embodiment is configured to include an operation history storage device 33 and a clock 34 in addition to FIG. Here, the driving history storage device 33 stores the driving history information of the escalator 1 (for example, the escalator 1
It is for storing the stop time, etc.). Also,
The clock 34 is for giving the current time information to the central processing unit 29. Next, regarding the operation of the escalator control device of the present embodiment configured as described above,
This will be described with reference to the flowchart shown in FIG.

In FIG. 3, the normal operation starting switch 22
When the escalator 1 is activated by the staff member 5 by the operation of, the immediately previous stop time T ₀ of the escalator 1 is read from the driving history storage device 33, and then the current time is read from the clock 34. The time T ₁ is read and given to the central processing unit 29. Then, in the central processing unit 29, the difference (T ₁ −T ₀ ) between the above respective times is calculated, and it is determined whether or not the escalator 1 has been stopped for a predetermined time or longer.

As a result, when it is determined that the escalator 1 has been stopped for a certain period of time or more, the wheelchair operation mode is automatically controlled by the processing step A similar to the case of the first embodiment. Transition to special steps 10-1
2 slows down. After deceleration, after the special steps 10 to 12 are deformed by the biasing device 13, the special step operating state check switch 27 checks the state. As a result, when the special steps 10 to 12 are operating normally, the steps automatically accelerate. Also, exit 3
However, similarly, the deceleration, the special step return operation check, and the automatic acceleration are similarly performed. As a result of the above check, if the operation and function are normal, the escalator 1 is directly shifted to normal operation or stopped. If the operation or function is abnormal as a result of the check, the operation of the escalator 1 is stopped at that time and the status is displayed on the status display panel 30.

When it is determined that the stop time of the escalator 1 is within the fixed time in the above, the escalator 1 is directly shifted to the normal operation or stopped and the stop time is stored in the operation history. Written to device 33.

As described above, the present embodiment is provided with the special steps 10 to 12 which are configured so that the effective horizontal area of the tread surface of the step 9 can be deformed and enlarged only when the wheelchair is transported, in consideration of the use by the wheelchair. In a control device for an escalator 1 capable of carrying a wheelchair configured to switch to a wheelchair operation mode when a wheelchair operation command is issued, the escalator 1 is automatically given when the escalator 1 is started after being stopped for a certain time or longer. According to a specific command, the escalator 1 is automatically tested in the wheelchair operation mode to self-check the operation of the special steps 10 to 12 and the state of the control system, and the check result is displayed on the status display panel 3
The notification is made to 0.

Therefore, when the escalator 1 is stopped, the time T ₀ is stored in the operation history information storage device 33, and when the escalator 1 is started, there is a constant difference between the previous operation stop time T ₀ and the current time T ₁ . Since the check operation is performed only when the time interval is exceeded, the same effect as in the case of the first embodiment can be obtained, and especially when the escalator is temporarily stopped for some reason during the commercial operation, for example. It is extremely effective. The present invention is not limited to the above embodiments, but can be implemented in the same manner as described below.

(A) In the first embodiment described above, the case where the specific command is automatically output immediately after the escalator 1 is started has been described.
The specific instruction is not limited to this, and the specific instruction may be automatically output when the escalator 1 is in operation.

(B) In each of the above-described embodiments, the case where the status is displayed on the status display panel 30 only when there is an abnormality in the operation or function as a result of the check has been described.
Not limited to this, even when the operation or function is normal as a result of the check, the fact may be displayed on the status display panel 30.

[0038]

As described above, according to the present invention, the wheelchair is provided with a special step which is designed so that the effective horizontal area of the step surface of the step can be deformed and expanded only when the wheelchair is transported, in consideration of use by the wheelchair. In an escalator control device that can transport a wheelchair configured to switch to a wheelchair operation mode when a driving command is issued, the escalator is automatically tested in the wheelchair operation mode by a specific command given at a specific time Since it is equipped with a means for self-checking the operation of special steps and the state of the control system while driving and notifying the check result, it is possible to improve the reliability during wheelchair operation and to detect abnormalities early. Thus, it is possible to provide an elevator control device capable of minimizing the influence of a failure or the like.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of an elevator control device according to the present invention.

FIG. 2 is a flowchart for explaining the control processing contents in the first embodiment.

FIG. 3 is a block diagram showing a second embodiment of the elevator control device according to the present invention.

FIG. 4 is a flowchart for explaining control processing contents in the second embodiment.

FIG. 5 is a schematic diagram showing a configuration example of a wheelchair-combined escalator.

FIG. 6 is a diagram showing a configuration example of a special step.

FIG. 7 is a schematic diagram for explaining the operation of a special step.

FIG. 8 is a schematic diagram for explaining the operation of a special step.

FIG. 9 is a schematic diagram for explaining the operation of a special step.

[Explanation of symbols]

1 ... escalator, 2 ... lower floor entrance, 3 ... upper floor exit, 4 ... wheelchair user, 5 ... clerk, 6 ... call button, 7 ... wheelchair operation changeover switch, 8 ... wheelchair operation button, 9 ... Steps, 10 ... First special step, 11 ... Second special step, 12 ... Third special step, 12a ... Ascending step plate, 1
2b ... Non-raising side, 13 ... Biasing device, 13a ... Rack, 1
4 ... Pinion, 15 ... Transmission shaft, 16a, 16b ... Bevel gear, 17 ... Transmission shaft, 18 ... Pinion, 19 ... Engagement body, 2
0 ... holding member for the engagement body 19 and the rising tread 12a
1 ... Level maintenance mechanism, 22 ... Normal operation start switch, 23
… Stop switch, 24… Wheelchair operation switch, 25
... Wheelchair operation stop switch, 26 ... Special step position detection switch, 27 ... Special step operation status check switch, 2
8 ... Escalator safety switch, 29 ... Central processing unit, 30 ... Status display panel, 31 ... Electric motor, 32 ... Brake, 33 ... Driving history storage unit, 34 ... Clock.

Claims (4)

[Claims] 1. A wheelchair operation mode is provided when a wheelchair operation command is issued, with a special step configured so that the effective horizontal area of the tread surface of the step can be deformed and expanded only when the wheelchair is transported in consideration of use by a wheelchair. In a control device for an escalator capable of transporting a wheelchair configured to be driven by an operator, the escalator is automatically test-operated in a wheelchair operation mode by a specific command given at a specific time, and the operation of the special steps and An escalator control device comprising means for self-checking the state of a control system and notifying the check result. 2. The escalator control device according to claim 1, wherein the specific command is automatically output immediately after the escalator is started. 3. The escalator according to claim 1, wherein as the specific command, the specific command is automatically output when the escalator is started after being stopped for a predetermined time or longer. Control device. 4. The escalator control device according to claim 1, wherein the specific command is automatically output when the escalator is in operation.