JP2003048681A - Small cargo lift and method for preventing running of lift with door opened - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lock operation even if a landing door is closed when a car door is open and unlock the operation when the car door is closed by detecting the opening and closing of the car door without wiring in a car. SOLUTION: This small cargo lift comprises a photoelectric device 15 emitting light beam and outputting signals for permitting the operation of the car when receiving the reflected light of the light beam, a rectangular prism 16 installed on the upper part of the car 1, and a reflection board 18 installed on a hoistway wall 17 at a position opposed to the rectangular prism 16. When the car door 3 is open, the light beam from the photoelectric device 15 is shielded by the car door 3 itself, and does not reach the reflection board 18. Thus the open state of the car door 3 can be detected without wiring in the car 1 so that, when the car door 3 is open, the operation of the car can be rejected even if the landing door 4 is closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small luggage elevator and a door open traveling prevention method therefor, and more particularly to a small luggage elevator for confirming the open / closed state of a car door, such as an electric small luggage elevator, to prevent door open traveling. It is about.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional elevator for small parcels.
This will be described with reference to FIGS. FIG. 10 is a diagram showing the overall configuration of a conventional small-sized luggage elevator seen from the side, and FIG. 11 is a front view of a conventional small-sized luggage elevator (hall entrance / exit).
It is a figure which shows the structure seen from. FIG. 12 is an operation explanatory diagram of the conventional technique.

In FIG. 10, 1 is a car, 2 is a hoisting rope for moving the car 1 up and down, 3 is a car door, 4 is a landing door, 5
Is a landing threshold, 6 is a rope for moving the landing door 4 up and down, 7 is a landing ceiling, and 8 is a hoistway. A lock mechanism for restraining the vertical movement is attached to the landing door 4 (not shown), and it can be mechanically locked by an electric signal or a cam attached to the car 1.

Further, in FIG. 11, numeral 9 is a hall entrance / exit, and a hall door 4 is provided on the hoistway side. A frame 10 holds and slides the landing door 4 and has a pulley 11. A landing door rope 6 having a weight 14 at one end and moored to the landing door 4 raises and lowers the landing door 4 via a pulley 11. Further, the landing door 4 is provided with an operation magnet 12, and when the landing door 4 is closed, the operation magnet 12 operates the proximity switch 13.

Conventionally, when the car 1 lands on the designated floor as shown in FIG. 10, for example, the operating magnet 12 attached to the car 1 is detected by a landing detection proximity switch (not shown) on the designated floor. , The landing detection proximity switch operates.
When this landing detection proximity switch is operated, the lock mechanism of the landing door 4 is released, and the door 4 can be opened / closed (a, b in FIG. 12).

When the landing doors 4 and the car doors 3 are opened and the loading work of the luggage and the like are completed, the car doors 3 are closed, and then FIG.
As shown in 1, the landing door 4 is closed. At this time, the landing door 4
The operation magnet 12 attached to the
When the proximity switch 13 is turned on, the landing door 4
Is sensed as closed (FIG. 12c). When the two conditions of the landing of the car 1 and the closed state of the landing door 4 (the proximity switch 13 is ON) are met, it becomes possible to receive the leaving signal of the command to move up and down to the next floor (d in FIG. 12), and the leaving signal. Waiting for, the car 1 goes up and down to the next designated floor (e in FIG. 12).

[0007]

Conventionally, in the elevator for exclusive use of small luggage, like the elevator that raises and lowers a person, a car 1 is electrically wired to provide an electric door switch, and the car door 3 is closed. Detecting the state is often not done considering the cost. That is, basket 1 on the designated floor
When it is confirmed that the car is on the floor and the landing door 4 is closed, the system can be operated regardless of whether the car door 3 is opened or closed.

That is, since the opening / closing of the car door 3 is not detected, the car door 3 is sometimes operated with the car door 3 open. In this case, there were occasional malfunctions in which the luggage went out of the car 1 due to forgetting to close the car door 3 and was caught on the wall of the hoistway 8 during traveling and became stuck. However, it is not possible to connect the electric wiring to the car 1 like an elevator due to the cost because it is necessary to pull the power cable, and the switches for detecting opening / closing are installed in the car door 3. I can't.

The present invention has been made in view of the above circumstances, and detects opening / closing of a car door without electrically wiring the car, and when the car door is open, the landing door is closed. Even if the driving is locked, the object of the present invention is to provide a parcel elevator that can be unlocked while the car door is closed.

[0010]

A parcel elevator according to the present invention includes a light emitting device for emitting a light beam, and a light receiving device for receiving the light beam and outputting a signal for permitting a car operation in response to the reception of the light beam. At least a device, the light emitting device and the light receiving device, when the car door and the landing door are both closed, the light beam emitted from the light emitting device is received by the light receiving device, the car door or the hall. The light is emitted from the light emitting device when any one of the doors is opened, and the light receiving device does not receive the light beam.

According to another aspect of the present invention, a light emitting and receiving device that emits a light beam and outputs a signal for permitting car operation when the reflected light is received, and a light beam emitted from the light receiving and emitting device is reflected. And a reflection plate, the light emitting and receiving device and the reflection plate, when both the car door and the landing door are closed, the light emitted from the light receiving and emitting device is reflected by the reflection plate, the reflected light is The light receiving and emitting device receives light, and the light is emitted from the light receiving and emitting device when either the car door or the landing door is in an open state. The light receiving and emitting device does not receive reflected light. It is a thing.

According to another aspect of the present invention, when either the car door or the landing door is open, an alarm is issued when an operation for instructing the operation of the car is performed and a bed leaving signal is output. It is equipped with an alarm means.

According to another aspect of the present invention, the above-mentioned reflection plate is vertically suspended or fixed, and a horizontal moving tool configured to be movable in the horizontal direction is provided.

Further, the door-opening prevention method according to the present invention is a small luggage elevator equipped with a device for outputting a signal for permitting or prohibiting car operation depending on whether or not the emitted light beam is received. The car operation is permitted based on the signal output from the device when both the car door and the landing door are closed, and the device is operated when either the car door or the landing door is open. The car operation is rejected based on the output signal.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. FIG. 1 is a diagram showing a configuration of a small luggage lift according to a first embodiment, (a)
Both the car door 3 and the landing door 4 are in a closed state, and (b) and (c) show a state in which at least one door is open. Figure 2
3 is an operation explanatory diagram when both the car door 3 and the landing door 4 are closed after the loading or unloading work is completed, FIG.
[Fig. 6] is an operation explanatory view when either the car door 3 or the landing door 4 is not closed after the work is completed.

In FIG. 1, reference numeral 15 denotes a photoelectric device, which emits a light beam and turns on a light reception signal when the reflected light is received.
Emit. The photoelectric device 15 is attached, for example, to the ceiling above the hoistway so as to emit light rays toward the car 1. Reference numeral 16 is a right-angled prism, which is horizontally mounted at a position facing the photoelectric device 15 on the car 1. 17
Is a hoistway wall, and 18 is a reflector such as a mirror, and is attached to the hoistway wall 17 that is the rear surface of the hall door 4 as viewed from the car 1 so as to face the right-angle prism 16.

As shown in FIG. 1A, the optoelectronic device 15, the right-angle prism 16, and the reflecting plate 18 are attached to the optoelectronic device 15 if there is nothing that shields the optical axis when the car 1 is on the floor. The emitted light ray is reflected by the reflection plate 18 via the right-angle prism 16, and the reflected light is again reflected by the right-angle prism 1.
It is in a position where the photoelectric device 15 can receive light via 6. At this time, the photoelectric device 15 emits a light reception signal ON. When the two conditions, that is, the landing signal of the car 1 and the light receiving signal of the photoelectric device 15 are turned ON, it is possible to accept the leaving signal of the command to move up and down to the next floor, and wait for the leaving signal to the next designated floor. Car 1 can be raised and lowered.

As shown in FIGS. 1 (b) and 1 (c), the car door 3 and the landing door 4 block light rays from the photoelectric device 15 when the car door 3 or the landing door 4 is open. It is in a position where you can. Therefore, when either the car door 3 or the landing door 4 is in the open state, the light receiving signal output from the photoelectric device 15 is OFF. In this case, the AND condition of the floor landing signal of the car 1 and the light receiving signal of the photoelectric device 15 is not satisfied, and the floor leaving signal is not accepted.

The operation of the parcel elevator constructed as above will be described with reference to FIGS. 2 and 3. Figure 1
As shown in (a), when the car 1 lands on the designated floor, for example, an operating magnet (not shown) attached to the car 1 is detected by a landing detection proximity switch (not shown) on the designated floor. , The landing detection proximity switch operates. When this landing detection proximity switch operates, the lock mechanism of the landing door 4 is released, and the door 4 can be opened and closed (a and b in FIG. 2).

Next, since the lock mechanism of the landing door 4 is released, the landing door 4 and the car door 3 are opened, and the loading work of the luggage and the like are performed. During this work, both the landing door 4 and the car door 3 are open. In this case, FIG. 1 (b) and (c)
As described above, since the light beam emitted from the photoelectric device 15 is blocked and the reflected light does not reach the photoelectric device 15, the light reception signal of the photoelectric device 15 is turned off (c, d in FIG. 2). Therefore, the acceptance of the leaving signal is rejected (e in FIG. 2).

When the work is completed, as shown in FIG.
Close the car door 3 and then the landing door 4. If both the car door 3 and the landing door 4 are closed, the photoelectric device 15 turns on the light reception signal.
Is emitted (d in FIG. 2). In this case, it becomes possible to receive the leaving signal of the command to move up and down to the next floor (e in FIG. 2) under the AND condition of the received light signal ON and the landing signal of the car 1 (a in FIG. 2). Wait for the leaving signal (f in FIG. 2) to move up and down to the next designated floor.

If the landing door 4 is closed after the work is completed but the car door 3 is forgotten to be closed as shown in FIG. 1 (c),
The light reception signal of the photoelectric device 15 remains OFF (d in FIG. 3). Therefore, the reception of the bed leaving signal remains rejected (e in FIG. 3), and the bed leaving signal is not received (f in FIG. 3).

When either the car door 3 or the landing door 4 is open, when the operator pushes the instruction button to go to the next floor and gives a signal to leave the floor, as shown in FIG. Of the landing signal (a in FIG. 4), the inverted light receiving signal (d bar in FIG. 4) obtained by logically inverting the light receiving signal of the photoelectric device 15 and the floor leaving signal (f in FIG. 4), the alarm is generated. You may choose to put it out.

As described above, according to the first embodiment,
The open state of the car door 3 is easily detected by the optical structure, and the car door 3
Is open, even if the landing door 4 is closed, the operation signal (bed leaving signal) is not accepted and an alarm is issued. As a result, the driving lock is released only when the car door 3 is closed. Therefore, even if the car 1 is not electrically wired to detect the opening / closing of the car door 3, the luggage goes out of the car 1 and gets caught on the hoistway wall due to forgetting to close the car door 3, and It is possible to prevent an accident in which the car 1 does not move.

Embodiment 2. FIG. 5 is a partially enlarged view of the parcel elevator according to the second embodiment. 5, the same components as those shown in FIG. 1 are designated by the same reference numerals.

In the first embodiment, the reflection plate 18 is attached to the hoistway wall 17, but as shown in FIG. 5, the hall door 4 is held and slid on the back side of the hall door 4 when viewed from the car 1. The bridge plate 20 may be provided on the frame 10, and the reflector plate 18 may be attached to the inside of the bridge plate 20 (the surface facing the right-angle prism 15).

Embodiment 3. FIG. 6 is a diagram showing the configuration of the small-sized goods elevator according to the third embodiment. 6, the same components as those shown in FIG. 1 are designated by the same reference numerals.

In the first and second embodiments described above, the reflection plate 18 is fixed to the optical axis. However, as shown in FIG. 6, the reflection plate 18 is attached to the landing door 4 and the reflection plate 18 is fixed to the optical axis. The reflector 18 may be moved. Reflector 1 in this example
8 is attached to the upper part of the landing door 4. At this mounting position, when the car 1 is on the floor and there is nothing that blocks the optical axis, the light beam emitted from the photoelectric device 15 is reflected by the reflecting plate 18 through the right-angle prism 16 and is again detected by the right-angle prism 16. It is a position where the photoelectric device 15 can receive light via.

In FIG. 6, (a) shows the car 1 landing,
Both the car door 3 and the landing door 4 are shown in a closed state.
In this case, the light rays emitted from the photoelectric device 15 are reflected by the reflection plate 1.
The light is reflected at 8 and enters the photoelectric device 15. Therefore,
The operation at this time is similar to the operation state described with reference to FIG. 2, and the light receiving signal output from the photoelectric device 15 is ON, and the bed leaving signal can be received.

FIGS. 6B and 6C show a state in which either the car door 3 or the landing door 4 remains open. The operation at this time is similar to the operation state described in FIG. For example, in the case of FIG. 6B, the reflector 1
Since 8 has moved to a position displaced from the optical axis, the light beam emitted from the photoelectric device 15 is not reflected by the reflection plate 18, and the light reception signal of the photoelectric device 15 is turned off. In addition, FIG.
In the case of (c), since the light beam emitted from the photoelectric device 15 is blocked by the car door 3, the light reception signal of the photoelectric device 15 is also OFF. Therefore, the reflector 18 is attached to the landing door 4.
It is possible to achieve the same function as in the above-described first and second embodiments even by mounting.

Fourth Embodiment FIG. 7: is a figure which shows the structure of the small luggage lift which concerns on Embodiment 4. As shown in FIG. 7, the same components as those shown in FIG. 1 are designated by the same reference numerals.

In the above first to third embodiments, the photoelectric device 15 is used.
There was only one on the ceiling of the hoistway. However, when the car 1 lands on the lower floor, the distance between the photoelectric device 15 and the reflection plate 18 becomes large and the reflected light becomes weak, so that the photoelectric device 15 cannot detect the reflected light. Conceivable.

Therefore, in the fourth embodiment, as shown in FIG. 7, the photoelectric device 15 is attached to the wall of each floor, and the car 1
A reflector 18 is provided on the upper part of Photoelectric device 15 in this case
The reflection plate 18 is attached at a position where the photoelectric device 15 and the reflection plate 18 face each other in a state where the car 1 is landed and the car door 3 and the landing door 4 are both closed, that is,
The light emitted from the photoelectric device 15 is reflected by the reflection plate 18, and the reflected light can be received by the photoelectric device 15.

In FIG. 7, when both the car door 3 and the landing door 4 are in the closed state, the operation is the same as the operation state described in FIG. 2, and the received light signal output from the photoelectric device 15 is O.
When N, the leaving signal can be received. On the other hand, if either the car door 3 or the landing door 4 is in the open state, the same operation as the operation state described in FIG. 3 is performed. That is, since the light beam from the photoelectric device 15 is blocked, the light reception signal output from the photoelectric device 15 is turned off, and acceptance of the leaving signal is rejected.

Here, the photoelectric device 15 is installed on the wall of each floor.
The reflector 18 is provided on the upper part of the car 1, but conversely, the reflector 18 may be provided on the wall of each floor, and the photoelectric device 15 may be provided on the upper part of the car 1. In this case, the photoelectric device 15 can use a device that wirelessly transmits a light reception signal. By doing so, the cost can be reduced because only one photoelectric device 15 is required.

Embodiment 5. In the above-described first to third embodiments, “the position of the photoelectric device 15, the right-angle prism 16, and the reflection plate 18 is the light beam from the photoelectric device 15 if there is nothing that shields the optical axis with the car 1 landing. Is a right angle prism 1
The light is reflected by the reflection plate 18 via 6 and the reflected light is received by the photoelectric device 15. " However, generally, it takes a long time to set the optical axis at a position where the light beam from the photoelectric device 15 is reflected by the reflecting plate 18 and the reflected light can be received by the photoelectric device 15, so a means for easily setting this is required. desired. The adjustment structure for returning the reflected light to the light projecting source will be briefly described below.

FIG. 8A is an image diagram showing a mounting state of the reflection plate, and FIG. 8B is an explanatory diagram of the horizontal moving tool. In FIG. 8A, reference numeral 21 denotes a suspending tool, which is composed of a chain, a ring, a string or the like for suspending the reflecting plate 18 on the horizontal moving tool 22 while keeping it vertical. A fixed plate 23 is fixed to the hoistway wall 17 in the example of FIG. Reference numeral 24 is a mounting hole for the fixing plate 23. The fixed plate 23 includes a rest portion 25 that supports the horizontal movement tool 22.

The horizontal moving tool 22 has a shape shown in FIG. 8 (b), and has a through hole 27 for a screw 26 as an axis of horizontal movement at one end thereof. The horizontal moving tool 22 is temporarily fastened to the rest portion 25 with a screw 26 and a nut (not shown). The other end of the horizontal moving tool 22 is formed in a U shape, and the U shape sandwiches the nut 28 so as to prevent the nut 28 from rotating.

The horizontal moving tool 22 rotates horizontally around the position of the screw 26 by rotating the screw rod 29 attached to the nut 28. Reference numeral 30 is a slit for rotation of the screw rod 29, and 31 and 32 are clearance holes for the screw rod 29. The screw rod 29 is fixed to the fixed plate 23 by the head (not shown) of the screw rod 29 and the E-shaped retaining ring 33.

As shown in FIG. 1A, the light emitted from the photoelectric device 15 is a rectangular prism 1 set horizontally.
When it enters in a direction perpendicular to 6 (45 ° with respect to the plane), it is reflected horizontally and is projected onto the suspended reflecting plate 18. Reflector 1
8 is attached in the configuration of FIG. 8A, the reflection plate 18 is vertical and therefore reflects horizontally with respect to horizontal projection. However, the reflection direction is indefinite.

When the screw rod 29 is rotated, the nut 28 is prevented from rotating by the horizontal moving tool 22.
The horizontal moving tool 22 moves horizontally with the screw 26 as a fulcrum. Thereby, the position of the reflection plate 18 can be moved so that the optical axis is vertical to the reflection plate 18. That is, if the light projection optical axis is horizontal, the direction of the reflection plate 18 that is hung vertically to the optical axis position is changed (screw 26
It is possible to adjust so that the reflected light is returned to the light projecting source by rotating it horizontally about the axis.

As described above, by horizontally rotating the horizontal moving tool 22 that suspends the reflecting plate 18 vertically, with one point of the horizontal moving tool 22 as an axis, the reflected light is returned to the photoelectric device 15 as the light projecting source. The adjustment for this can be easily performed only by rotating the screw rod 29.

In the above example, the reflection plate 18 is hung vertically on the horizontal moving tool 22, but as shown in FIG. 9A, the transfer plate 40 is horizontally attached between the holding frames 10 of the landing doors 4. At the same time, as shown in FIG. 9B, the reflector mounting plate 34 bent at a right angle may be mounted on the transfer plate 40, and the reflector 18 may be mounted on one surface thereof. Also in this case, the adjustment of returning the reflected light to the photoelectric device 15 as the light projecting source can be easily performed.

As shown in FIG. 9B, the reflector mounting plate 34 is provided with a hole through which a screw 35, which serves as an axis of rotation of the reflector mounting plate 34, and an escape hole 37 for a fixing screw 36. Has been. 38 is a washer and 39 is a nut. The shape of the escape hole 37 has an arc so that the reflection plate mounting plate 34 can rotate about the screw 35.

Further, as shown in FIG. 9A, the landing door 4
In the transfer plate 40 horizontally attached between the holding frames 10 of the holes 41, 4 through which the screws 35 and the fixing screws 36 pass.
2 is provided.

An adjusting operation for returning the reflected light to the photoelectric device 15 as the light projecting source in the above-mentioned structure will be described below. First, as shown in the arrow A of FIG.
The reflection plate mounting plate 34 is temporarily fixed to 0 with screws 35 and 36 and a nut 39. At this time, since the transfer plate 40 is horizontal and the reflection plate attachment plate 34 is bent at a right angle, the reflection plate 18 attached to the reflection plate attachment plate 34 is
Is in a vertical position.

As shown in FIG. 1A, the light horizontally projected from the photoelectric device 15 through the right-angle prism 16 to the reflection plate 18 is reflected horizontally. However, since the optical axis is not always vertical to the reflection plate 18, the reflected light is not always returned to the light projecting source. Therefore, by moving the reflector mounting plate 34 left and right in the direction of the arrow B about the screw 35 as an axis, the position where the reflected light with respect to the light horizontally projected from the photoelectric device 15 is reliably returned to the projecting source. You can ask. Then, the reflector mounting plate 34 may be fixed at this position.

As described above, the reflection plate mounting plate 34 for vertically fixing the reflection plate 18 is horizontally rotated about one point of the reflection plate mounting plate 34 as an axis, so that the photoelectric device 15 that projects the reflected light. The adjustment for returning the light can be easily performed only by rotating the reflector mounting plate 34.

The reflector mounting plate 34 may be mounted on this horizontal part by setting a horizontal part on the upper part of the landing door 4 as shown in FIG. Also in this case, it is possible to sufficiently fulfill the adjusting function for returning the reflected light to the light projecting source.

Each of the embodiments described above is merely an example of the embodiment for carrying out the present invention, and the technical scope of the present invention is not limitedly interpreted by these. It does not happen. That is, the present invention can be implemented in various forms without departing from the spirit or the main features thereof.

For example, in the above-described first to fourth embodiments, an example in which the car door 3 or the landing door 4 directly shields the optical axis has been described. However, a plate for shielding the light is attached to the car door 3 or the landing door 4. The light may be shielded by this.

Further, in the above-described first to fourth embodiments, the photoelectric device 15 having both the light emitting portion and the light receiving portion is used, but the light emitting device and the light receiving device may be separately provided. In this case, for example, in FIG. 1, a light emitting device that emits a light beam is used instead of the photoelectric device 15, and a light receiving device that receives a light beam and outputs a light receiving signal ON when the light beam is received instead of the reflector 18 ( A photoelectric device) may be used.

Further, in the above-described first to fourth embodiments, the optical system is located at a position where the light beam from the photoelectric device 15 does not reach the reflecting plate 18 when either the car door 3 or the landing door 4 is in the open state. However, even if the light beam from the photoelectric device 15 can be reflected by the reflection plate 18, the optical system may be configured so that the reflected light does not return to the photoelectric device 15.

Further, in the above-mentioned first to fourth embodiments, the acceptance of the leaving signal is permitted under the AND condition of the landing signal of the car 1 and the light receiving signal ON. However, when the photoelectric device 15, the rectangular prism 16 and the reflector 18 are arranged as described above, the light receiving signal is turned ON only when the car 1 is landing on the designated floor, and therefore the light receiving signal is turned on. The acceptance of the leaving signal may be permitted only under the ON condition.

[0055]

Since the present invention is configured as described above, opening / closing of a car door can be detected without electrical wiring to the car of the parcel elevator, and when the car door is open, the landing door Even if is closed, it is possible to allow or disallow driving, and it is possible to allow driving when the car door is closed. This makes it possible to provide a device that detects the open state of the car door by the optical structure and prevents the car from running open at low cost.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a parcel elevator according to a first embodiment.

FIG. 2 is an operation explanatory diagram when both the car door and the landing door are in a closed state after the work of loading or unloading is completed.

FIG. 3 is an operation explanatory diagram when either the car door or the landing door is not closed after the completion of the work of loading or unloading.

FIG. 4 is an explanatory diagram of an alarm issuing operation when a bed leaving instruction is issued with either a car door or a landing door in an open state.

FIG. 5 is a diagram showing a partial configuration example of a parcel elevator according to a second embodiment.

FIG. 6 is a diagram showing a configuration of a parcel elevator according to a third embodiment.

FIG. 7 is a diagram showing a configuration of a small luggage lift according to a fourth embodiment.

FIG. 8 is a diagram showing a partial configuration example of a parcel elevator according to a fifth embodiment.

FIG. 9 is a diagram showing another partial configuration example of the parcel elevator according to the fifth embodiment.

FIG. 10 is a diagram showing an overall configuration of a conventional small bag lift as viewed from the side.

FIG. 11 is a diagram showing an overall configuration of a conventional parcel elevator seen from the front.

FIG. 12 is a diagram for explaining the operation of the conventional parcel elevator.

[Explanation of symbols]

1 car, 2 hoisting ropes, 3 car doors, 4
Landing doors, 5 Landing thresholds, 6 Landing door ropes, 7
Hall ceiling, 8 hoistway, 9 hall entrance / exit, 10 hall holding frame, 11 pulley, 12 operation magnet, 13
Proximity switch, 14 weights, 15 photoelectric device, 1
6 Right angle prism, 17 Hoistway wall 18 Reflector,
20 bridge plate, 21 hanging tool, 22 horizontal moving tool,
23 fixing plate, 24 mounting hole, 25 rest part, 26 screw, 27 through hole, 28 nut,
29 screw rod, 30 slit, 31 escape hole 32
Escape hole, 33 E type retaining ring, 34 Reflector mounting plate, 35 screw, 36 fixing screw, 37 escape hole, 38 washer, 39 nut, 40 passing plate,
41 through holes, 42 through holes.

Claims (12)

[Claims] 1. A light emitting device which emits a light beam, and a light receiving device which receives the light beam and outputs a signal for permitting a car operation in response to the reception of the light beam. The light emitted from the light emitting device is received by the light receiving device when both the car door and the landing door are closed, and from the light emitting device when either the car door or the landing door is open. A parcel elevator which is arranged at a position where the emitted light beam is not received by the light receiving device. 2. The light emitting device and the light receiving device are composed of one light emitting and receiving device, and reflect light rays emitted from the light receiving and emitting device when both the car door and the landing door are closed. 2. The parcel elevator according to claim 1, further comprising a reflecting plate provided on the optical axis for allowing the light receiving and emitting device to receive light. 3. A light emitting and receiving device that emits a light beam and outputs a signal for permitting car operation when the reflected light is received, and a reflecting plate that reflects the light beam emitted from the light emitting and receiving device. When the car door and the landing door are both closed, the light emitted from the light receiving and emitting device is reflected by the reflecting plate, and the reflected light is received by the light receiving and emitting device. In addition, when the car door or the landing door is in the open state, the light is emitted from the light emitting and receiving device, and the reflected light with respect to the light emitting and receiving device is not received by the light receiving and emitting device. Luggage lift. 4. A photoelectric device provided above the hoistway of the car, which outputs a signal for permitting the operation of the car when emitting a light beam and receiving the reflected light, and an upper part of the car, A right-angle prism horizontally mounted at a position facing the optoelectronic device, and a reflecting plate mounted on the hoistway wall that hits the rear surface of the landing door when viewed from the car so as to face the right-angle prism. A parcel elevator that features. 5. A photoelectric device provided above the hoistway of the car, which outputs a signal for permitting the operation of the car when it emits a light beam and receives the reflected light, and in the upper part of the car, A right-angle prism horizontally mounted at a position facing the optoelectronic device, and a surface facing the right-angle prism of a transfer plate provided on a frame for holding and sliding the hall door on the back surface of the hall door when viewed from the car. And a reflector attached to the parcel elevator. 6. A photoelectric device provided above the hoistway of a car, which outputs a signal for permitting the operation of the car when it emits a light beam and receives the reflected light, and an upper part of the car, A parcel elevator equipped with a right-angle prism horizontally mounted at a position facing the optoelectronic device, and a reflection plate mounted at a top of a landing door so as to face the right-angle prism. 7. A photoelectric device provided on a wall at a landing position on each floor, which outputs a signal for permitting the operation of the car when it emits a light beam and receives the reflected light, and an upper part of the car. The parcel elevator according to claim 1, further comprising: a reflector attached to a position facing the photoelectric device. 8. A photoelectric device provided on the upper part of the car door, which outputs a signal for permitting the operation of the car when emitting a light beam and receiving the reflected light, and a wall part at a landing position on each floor. And a reflector installed at a position facing the optoelectronic device. 9. An alarm means for issuing an alarm when an operation for instructing the operation of the car is performed and a bed leaving signal is output when either the car door or the landing door is open. The parcel elevator according to claim 3, wherein 10. The parcel elevator according to claim 3, further comprising a horizontal moving tool configured to vertically suspend or fix the reflecting plate so as to be movable in a horizontal direction. 11. A parcel elevator equipped with a device for outputting a signal for permitting or prohibiting car operation depending on whether or not the emitted light beam is received, wherein both the car door and the landing door of the parcel elevator are in a closed state. Is allowed, the car operation is permitted based on the signal output from the device, and the car operation is rejected based on the signal output from the device when either the car door or the landing door is open. A method for preventing door-open running of a parcel elevator, which is characterized in that 12. An alarm is issued when an operation for instructing driving of the car is performed and a bed leaving signal is output when either the car door or the landing door is in an open state. The method for preventing door-open running of a parcel elevator according to claim 11.