JPH08188364A - Simplified lift - Google Patents

Abstract

PURPOSE: To confirm the opening and closing condition of a landing door securely, by providing a photoelectric device to transmit the beam and to receive the reflected beam; a landing door reflector mirror to reflect the beam; and a controller to decide the opening and closing condition of the landing door depending on the output of the photoelectric device. CONSTITUTION: In the condition a landing door 3 is closed, the beam 8 output from a photoelectric device 7 installed to a ceiling is not reflected by a landing door reflector mirror 5, and the receiver of the photoelectric device 7 discharges no output. And in the condition the landing door 3 is opened, the beam 8 output from the photoelectric device 7 is reflected by the landing door reflector mirror 5, and the receiver of the photoelectric device 7 discharges the output by the reflected beam. Since the photoelectric device 7 discharges the output when the landing door 3 is opened, and does not discharge the output when the landing door 3 is closed, in such a way, a controller to which the photoelectric device 7 is connected can decides the opening and closing condition of the landing door 3. Consequently, the opening and closing condition of the landing door 3 can be confirmed securely, and an error detection can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple lift for surely confirming the open / closed state of a landing door such as an electric dam waiter.

[0002]

2. Description of the Related Art Conventionally, the opening / closing state of a landing door of an electric dam waiter is often confirmed by using a proximity SW or a micro SW. However, in recent years, the open / closed state of the landing door is erroneously detected due to an internal short circuit of the proximity SW or a seri of the micro SW caused by the installation environment of the dam waiter (because it is installed in a kitchen or the like, so that it is humid). There were cases.

A conventional dam waiter will be described with reference to FIGS. 14 and 15. FIG. 14: is a figure which shows the whole structure which looked at the conventional dam waiter from the side surface. In addition, FIG. 15 is a diagram showing the structure of a conventional dam waiter from the front (landing entrance / exit).

In FIG. 14, reference numeral 1 is a hoisting rope for raising and lowering the cab 2, and 3 is a hall door which is raised and lowered by a hall door rope 9. Further, 4 is a hall threshold and 6 is a ceiling of the hall.

In FIG. 15, numeral 10 is a hall entrance / exit, and a hall door 3 is provided on the hoistway side. In addition, landing door 3
Has an operation magnet 25, and when the hall door 3 is closed, the operation magnet 25 approaches the proximity SW 26 and operates the proximity SW 26.

Conventionally, as shown in FIG. 15, the operating magnet 25 attached to the hall door 3 approaches the proximity SW 26 when the hall door 3 is closed, and the proximity door 26 operates when the proximity SW 26 operates.
It can be detected that is closed.

However, the proximity SW 26 cannot be maintained from the outside, and short-circuiting of the contacts is likely to occur due to moisture or dust.

[0008]

In the conventional dam waiter as described above, the open / closed state of the landing door is erroneously detected due to an internal short circuit of the proximity SW and a micro switch of the SW due to the installation environment of the kitchen or the like. was there.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to obtain a simple lift capable of surely confirming the open / closed state of a hall door and preventing erroneous detection.

[0010]

A simple lift according to the present invention is provided on a ceiling of a landing, a photoelectric device for transmitting light rays and receiving reflected light rays, and a landing hall provided on a landing door for reflecting light rays. It is provided with a door reflector and a control unit for judging the open / closed state of the hall door based on the output of the photoelectric device.

Further, in the simple lift according to the present invention, the hall door reflecting mirror reflects the light beam sent from the photoelectric device when the hall door is opened, and the control unit causes the photoelectric device to emit light. When there is output, it is determined that the hall door is open, and when there is no output from the photoelectric device, it is determined that the hall door is closed.

Further, the simple lift according to the present invention is further provided in a car room, is operated by a car room reflecting mirror for reflecting light rays and a cam provided in the car room, and is provided on a hoistway wall. A position switch for detecting the position of the cab, the control unit, when there is an output from the position switch, based on the output of the photoelectric device by the reflected light from the hall door reflector and the cab reflector The opening / closing state of the landing door is determined and the state of the photoelectric device is determined.

Further, in the simple lift according to the present invention, when the control unit determines that the photoelectric device is defective, the external alarm device issues an alarm to that effect.

Further, the simple lift according to the present invention further comprises a display lamp which is provided on the ceiling seen from the landing and which displays the output state of the photoelectric device.

Further, in the simple lift according to the present invention, the hall door reflecting mirror reflects the light beam transmitted from the photoelectric device when the hall door is closed, and the control section
When there is an output from the photoelectric device, it is determined that the hall door is closed, and when there is no output from the photoelectric device, it is determined that the hall door is open.

[0016]

In the simple lift according to the present invention, the photoelectric device provided on the ceiling of the hall for transmitting the light rays and receiving the reflected light rays, and the hall door reflecting mirror provided on the hall door for reflecting the light rays, Since the control unit that determines the open / closed state of the hall door based on the output of the photoelectric device is provided, the opened / closed state of the hall door can be reliably confirmed, and erroneous detection can be prevented.

Further, in the simple lift according to the present invention, the hall door reflecting mirror reflects the light beam transmitted from the photoelectric device when the hall door is opened, and the control unit causes the photoelectric device to be reflected. When there is an output from, it is determined that the hall door is open, and when there is no output from the photoelectric device, it is determined that the hall door is closed,
The open / closed state of the landing door can be confirmed with certainty, and false detection can be prevented.

Further, in the simple lift according to the present invention, it is further operated by a car room reflecting mirror which is provided in the car room and reflects light rays, and a cam provided in the car room,
A position switch provided on the wall of the hoistway for detecting the position of the cab, and when the control unit outputs from the position switch, the reflected light from the hall door reflecting mirror and the cab reflecting mirror is used. Since the open / closed state of the hall door is determined based on the output of the optoelectronic device and the state of the optoelectronic device is determined, the open / closed state of the hall door can be surely confirmed and a defect in the photoelectric device can be detected.

Further, in the simple lift according to the present invention, when the control unit determines that the photoelectric device is defective, the external alarm device issues an alarm to that effect to the outside, so that a quick response such as restoration is provided. it can.

Further, in the simple lift according to the present invention, since it is further provided with a display lamp which is provided on the ceiling seen from the landing and which displays the output state of the photoelectric device,
You can easily check the open / closed status of the landing door.

Further, in the simple lift according to the present invention, the hall door reflecting mirror reflects the light beam sent from the photoelectric device when the hall door is closed, and the control section causes the photoelectric device to be reflected. When there is output from, it is determined that the hall door is closed, and when there is no output from the photoelectric device, it is determined that the hall door is open, so the open / closed state of the hall door can be reliably confirmed, False detection can be prevented.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Each embodiment of the present invention is to confirm that the hall door is surely closed by using a photoelectric device in which auction or an internal short circuit is unlikely to occur and prevent erroneous detection.

Example 1. Embodiment 1 of the present invention will be described with reference to FIGS. 1, 2 and 3. 1 is a diagram showing the overall configuration of a first embodiment of the present invention. Figure 2
It is a figure which shows the structure which looked at this Example 1 from the hall side. Further, FIG. 3 is a diagram showing a state in which the hall door of the first embodiment is opened. In each figure, the same reference numerals indicate the same or corresponding parts. The description of the devices described in the related art will be omitted.

In FIG. 1, reference numeral 7 denotes an optoelectronic device having a light emitting portion and a light receiving portion which are mounted near the ceiling 6 of the hall. Further, 5 is a hall door reflector attached to the hall door 3. The photoelectric device 7 installed on the ceiling 6 is mounted so that the light beam 8 emitted from the light emitting unit is reflected by the hall reflector 5 and returns to the light receiving unit.

In FIG. 2, the hall door reflecting mirror 5 is attached to the hall door 3 which is invisible from the hall entrance / exit 10.

FIG. 1 shows a state in which the hall door 3 is closed. Light beam 8 emitted from photoelectric device 7 mounted on ceiling 6
Since the hall door 3 is closed, it is not reflected by the hall door reflecting mirror 5, and the light receiving unit of the photoelectric device 7 does not output.

FIG. 3 shows a state in which the hall door 3 is open.
The light beam 8 emitted from the photoelectric device 7 is reflected by the hall door reflecting mirror 5, and the reflected light causes the light receiving portion of the photoelectric device 7 to output.

As described above, when the hall door 3 is open, the photoelectric device 7 outputs, and when the hall door 3 is closed, it does not output. Therefore, the control unit (not shown) to which the photoelectric device 7 is connected. Can determine the open / closed state of the hall door 3. Thereby, the opening / closing state of the landing door 3 can be confirmed. In particular, the photoelectric device 7 has few problems such as an internal short-circuit of the proximity SW 26 and a squirrel of the micro SW, and the opening / closing of the hall door 3 can be surely confirmed.

Example 2. A second embodiment of the present invention will be described with reference to FIGS. 4, 5, 6 and 7. FIG.
FIG. 7 is a diagram showing an overall configuration of a second embodiment of the present invention. FIG. 5 is a block diagram showing the configuration of the control unit according to the second embodiment. 6 and 7 are timing charts showing the operation of the second embodiment.

In the first embodiment, it is considered that the output is insufficient due to a defective lamp in the light emitting portion of the photoelectric device 7 or dust. Therefore,
In the second embodiment, the open / closed state of the hall door is confirmed while confirming the output failure of the photoelectric device 7.

In FIG. 4, the landing door 3 in the first embodiment.
Although the hall door reflecting mirror 5 is attached only to the car, the cab reflecting mirror 11 is also attached to the cab 2 in the second embodiment. Also,
Reference numeral 13 is a position switch (SW) which is operated by the cam 12 attached to the cab 2 and detects the position of the cab 2.

In FIG. 5, 15 is a control unit, 16 is a photoelectric device output determination device connected to the photoelectric device 7, 17 is a defect display unit, 18 is a defect determination unit, 19 is a CPU, and 20 is connected to the position SW 13. Position SW signal processing unit.

The signal from the position SW 13 is input to the control unit 15, and the photoelectric device output determination device 16 determines the position of the cab 2. Since the distances from the photoelectric device 7 to the hall door reflecting mirror 5 and the car room reflecting mirror 11 are different, of course,
The amount of light received by the light receiving unit differs and the output of the photoelectric device 7 changes. Take advantage of this property. If the light intensity change is small,
When the output of the photoelectric device 7 does not change, the cab reflector 1
No. 1 has a low reflectance.

FIG. 6 shows changes in the output of the photoelectric device 7 when the cab 2 does not stop at the landing. When the cab 2 passes near the landing, the position SW 13 is engaged with the cam 12 and the signal of the position SW 13 enters the position SW signal processing unit 20. As a result, the position SW signal processing unit 20 becomes the car room 2
Determine the floor that is passing by.

Based on the signal from the position SW signal processing unit 20, the CPU 19 instructs the defect determination unit 18 to confirm the signal of the photoelectric device output determination device 16 on the relevant floor. When the photoelectric device 7 reaches the cab reflection mirror 11, the output of the photoelectric device 7 is
As shown in FIG. 6B, the light beam 8 returns to the light receiving portion, and the output of the photoelectric device 7 outputs a constant low level output. If the lamp of the photoelectric device 7 is burnt out or is contaminated with dust or the like, the output level is lower than the constant low level output. Therefore, the defect determination unit 18 determines that the photoelectric device 7 is defective, and the defect display unit 17 of the control unit 15 displays it. Instruct abnormal display. On the other hand, if there is a normal output that is the constant low level, the failure determination unit 18 determines that the output is normal.

FIG. 7 shows the case where the cab 2 is stopped, and when the output of the photoelectric device 7 reaches the cab reflection mirror 11 of the photoelectric device 7, as shown in section a of FIG. Returns to the light receiving section, and the output of the photoelectric device 7 outputs a constant low level output. Then, when the landing door 3 is opened, b in FIG.
As shown in the section, the light beam 8 of the photoelectric device 7 is changed from the reflection at the cab reflection mirror 11 to the reflection at the hall door reflection mirror 5,
The output increases. When this value is displayed, it is determined that the hall door 3 has been opened. When the hall door 3 is closed, c in FIG.
As shown in the section, the output decreases again. Here, it is determined that the hall door 3 is closed.

When the value of each level is abnormal, the defect determining unit 18 determines that the defect is defective, and instructs the defect display unit 17 of the control unit 15 to display the abnormality. In this way, it is possible to confirm the open / closed state of the hall door 3 and determine whether the photoelectric device 7 is defective.

Example 3. A third embodiment of the present invention will be described with reference to FIG. FIG. 8 is a block diagram showing the configuration of the control unit according to the third embodiment of the present invention.

In the second embodiment, a defect of the photoelectric device 7 can be found. However, although the output is reduced due to dirt or the like, there is a risk that the lamp burnout may be mistakenly determined as the hall door 3 is closed. The degree of reduction in output due to dirt or the like may be indicated by the defect display section 17, but if it can be determined that a lamp burnout has occurred due to a reduction in output, the traveling of the cab 2 must be stopped to ensure safety.

In this third embodiment, the control unit 15 is provided with an external alarm device 21, and when the photoelectric device 7 is burned out, for example, the traveling of the cab 2 is stopped and the external alarm device 21 is used. For example, the external telephone 22 is notified of the abnormality occurrence. As a result, it is possible to self-diagnose the abnormal state and ensure safe driving.

Example 4. A fourth embodiment of the present invention will be described with reference to FIG. FIG. 9 is a block diagram showing the configuration of the control unit according to the fourth embodiment of the present invention.

Although the control unit 15 has the photoelectric device output determination device 16 on each floor in the above-described first to third embodiments, the capacity of the control unit differs depending on the number of stop floors. Therefore, in the fourth embodiment, the photoelectric device output determination device 16 is placed on the photoelectric device 7 side so that the control unit 15 does not change depending on the stop rank.

When the position SW signal processing unit 20 detects the floor where the cab 2 is located, the CPU 19 causes the output processing device 23 to output the photoelectric device output determination device 16 in the photoelectric device 7 of the floor.
Instruct to judge. The photoelectric device output determination device 16 determines the output state and transmits only the result to the output processing device 23 of the control unit 15 as in the third embodiment. CPU19
Performs the same processing as that of the above-described third embodiment according to the result.

Example 5. A fifth embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a diagram showing the configuration of the control unit according to the fifth embodiment of the present invention. In addition, FIG. 11 is a diagram showing the overall configuration of the fifth embodiment.

In the fourth embodiment, when the output of the photoelectric device 7 is lowered, it is displayed on the defect display section 17 of the control section 15.
Since the control part 15 of the dam waiter is generally located in the ceiling space 6, it is difficult for an operator to find it. In this example 5, FIG.
Also, as shown in FIG. 11, the display lamp 24 is attached near the photoelectric device 7. Thereby, the operator can easily check the state of the photoelectric device 7 only by checking the display lamp 24 near the hall without looking at the control unit 15 on the ceiling 6 above.

Example 6. A sixth embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a side view showing the overall configuration of the sixth embodiment of the present invention. Further, FIG. 13 is a plan view showing the overall structure of the sixth embodiment.

Up to the fifth embodiment, the output of the photoelectric device 7 is output when the hall door 3 is opened, but in the sixth embodiment, the output of the photoelectric device 7 is output when the hall door 3 is closed. .

12 and 13, the hall door reflecting mirror 5 is attached to a part of the upper portion of the hall door 3. Further, the photoelectric device 7 is attached at two places, and the light emitting units emit light rays 8 toward the light receiving unit of the optoelectronic device 7 of the other party. Thus, when either photoelectric device 7 detects the light beam 8 and outputs the light beam, it can be determined that the hall door 3 is closed.

It is possible to operate even if the lamp of one photoelectric device 7 is burned out, and the indicator lamp 24 is detected by detecting this lamp burnout.
By turning on, the lamp can be replaced at the next work without hindering operation. Further, according to this method, the open / closed state of the hall door 3 can be confirmed as in the fifth embodiment.

[0050]

As described above, the simple lift according to the present invention is provided on the ceiling of a hall, a photoelectric device for transmitting light rays and receiving reflected light rays, and a hall door for reflecting light rays. Since the hall door reflecting mirror and the control unit for determining the open / closed state of the hall door based on the output of the photoelectric device are provided, it is possible to reliably confirm the open / closed state of the hall door and prevent an erroneous detection. Play.

Further, in the simple lift according to the present invention, as described above, the hall door reflecting mirror reflects the light beam transmitted from the photoelectric device when the hall door is opened, and the control section is When the photoelectric device outputs, it is determined that the hall door is open, and when there is no output from the photoelectric device, it is determined that the hall door is closed. The effect of being able to confirm and preventing erroneous detection is obtained.

Further, as described above, the simple lift according to the present invention is further operated in the car room by the car room reflecting mirror for reflecting light rays and the cam provided in the car room, and the hoistway. A position switch provided on a wall for detecting the position of the cab, and when the control unit outputs from the position switch, the photoelectric conversion device using the reflected light from the hall door reflecting mirror and the cab reflecting mirror Since the open / closed state of the hall door is determined based on the output of the device and the state of the photoelectric device is determined, the open / closed state of the hall door can be surely confirmed, and a defect of the photoelectric device can be detected. .

As described above, in the simple lift according to the present invention, when the control unit determines that the photoelectric device is defective, the external alarm device issues an alarm to that effect. The effect of being able to respond quickly is demonstrated.

Further, as described above, the simple lift according to the present invention is further provided on the ceiling visible from the hall and provided with the display lamp for displaying the output state of the photoelectric device, so that the hall door can be easily opened. This has the effect of confirming the open / closed state.

Further, in the simple lift according to the present invention, as described above, the hall door reflecting mirror reflects the light beam sent from the photoelectric device when the hall door is closed, and the control section is When the photoelectric device outputs, it is determined that the hall door is closed, and when there is no output from the photoelectric device, it is determined that the hall door is open. Can be confirmed,
This has the effect of preventing erroneous detection.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of the first embodiment of the present invention viewed from a landing entrance / exit.

FIG. 3 is a diagram showing an overall configuration of a first embodiment of the present invention.

FIG. 4 is a diagram showing an overall configuration of a second embodiment of the present invention.

FIG. 5 is a diagram showing a system configuration of a second embodiment of the present invention.

FIG. 6 is a timing chart showing the operation of the second embodiment of the present invention.

FIG. 7 is a timing chart showing the operation of the second embodiment of the present invention.

FIG. 8 is a diagram showing a system configuration of a third embodiment of the present invention.

FIG. 9 is a diagram showing a system configuration of a fourth embodiment of the present invention.

FIG. 10 is a diagram showing a system configuration of a fifth embodiment of the present invention.

FIG. 11 is a diagram showing an overall configuration of a fifth embodiment of the present invention.

FIG. 12 is a diagram showing an overall configuration of a sixth embodiment of the present invention.

FIG. 13 is a diagram showing an overall configuration of a sixth embodiment of the present invention.

FIG. 14 is a diagram showing an overall configuration of a conventional simple lift.

FIG. 15 is a diagram showing an overall configuration of a conventional simple lift.

[Explanation of symbols]

1 hoisting rope, 2 cabs, 3 hall doors, 4 hall sills, 5 hall door reflectors, 6 ceilings, 7 photoelectric devices, 8
Rays, 9 hall door ropes, 10 hall doorways, 11
Car room reflector, 12 cam, 13 position SW, 14 hoistway wall, 15 controller, 16 photoelectric device output determination device, 1
7 defect display section, 18 defect determination section, 19 CPU, 2
0 position SW signal processing unit, 21 external alarm device, 22
External telephone, 23 output processor, 24 indicator lamp,
25 operation magnet, 26 proximity SW.

Claims (6)

[Claims] 1. A photoelectric device provided on a ceiling of a hall for receiving a light ray that transmits and reflects a light ray, a hall door reflector provided on a hall door for reflecting a light ray, and based on an output of the photoelectric device. A simple lift, comprising a control unit that determines whether the landing door is open or closed. 2. The hall door reflector reflects light rays transmitted from the photoelectric device when the hall door is open,
The control unit determines that the hall door is open when there is output from the photoelectric device, and determines that the hall door is closed when there is no output from the photoelectric device. The simple lift according to claim 1. 3. A position provided on the hoistway wall for detecting the position of the car room, which is operated by a car room reflecting mirror provided in the car room and reflecting light rays, and a cam provided on the car room. A switch is provided, and the control unit determines the open / closed state of the hall door based on the output of the photoelectric device by the reflected light from the hall door reflector and the cab reflector when the position switch outputs. The simple lift according to claim 1, further comprising: determining the state of the photoelectric device. 4. The simple lift according to claim 3, wherein when the control unit determines that the photoelectric device is defective, the control unit issues an external notification to that effect by an external alarm device. 5. The simple lift according to claim 3, further comprising a display lamp provided on a ceiling viewed from a landing and displaying an output state of the photoelectric device. 6. The hall door reflecting mirror reflects the light beam sent from the photoelectric device when the hall door is closed, and the control unit receives the light beam from the photoelectric device when the hall door is closed. The simple lift according to claim 1, wherein it is determined that the vehicle is closed, and when there is no output from the photoelectric device, it is determined that the hall door is open.