JPH04101976A - Inching operating device for elevator - Google Patents

Abstract

PURPOSE:To prevent the impediment of normal operation by providing a time limit device for outputting a time limit signal when the specified time elapses without performing inching operation with a change-over switch in the state of being switched to the inching operation side, and a reporting device driven by this time limit signal so as to perform reset reporting. CONSTITUTION:When inching operation is performed and floor adjustment is completed, an inching zone detecting limit switch 12 is turned off, and an upward inching relay 17 is de-energized. In this state, a contact 17b is turned on. Then an inching operation mode release time limit relay T is energized to start counting. When this inching operation mode release time limit relay T counts up the specified time, a contact Tb is turned off. Then an operation mode change-over switch A is switched to the normal operation side. Also, since a contact Ta is turned on by the count-up of the inching operation mode release time limit relay T, a reporting device B sounds.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an inching operation device for an elevator, and more particularly to an inching operation device for an elevator that performs an inching operation that eliminates a level difference between a car floor and a landing floor.

[Prior Art] In elevators, especially elevators for transporting luggage, if there is a large difference in level between the car floor and the landing floor, it will hinder the loading and unloading of luggage. As such, elevators are usually equipped with an inching operation device for aligning the car floor with the landing floor. In an elevator equipped with an inching operation device, an operation mode changeover switch is provided on the operation panel in the car, and when the operation mode changeover switch is switched to the inching operation side, a state becomes possible where one inching operation is possible.

Therefore, the user who has switched the operation mode selector switch to the inching operation side can perform inching operation within one inching zone to align the floor by operating the inching button provided in the car. In this type of elevator, unless the user switches the operation mode changeover switch to the normal operation side after inching operation, the elevator cannot respond to calls from other floors.

[Problems to be Solved by the Invention] In the conventional inching operation device described above, if the user forgets to switch the operation mode selector switch back to the normal operation side after inching operation, the elevator will not be able to service other floors. become unable.

The present invention has been made in view of the current state of conventional inching operation, and its purpose is to provide an elevator inching operation device that prevents normal operation from being blocked due to forgetting to return the operation mode selector switch after inching operation. It is in.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an inching zone detection means, an inching button, and an inching button for changing the operation of the car from normal operation to inching for an elevator car that operates on multiple floors. An elevator is provided with an operation mode changeover switch for switching between operations, and when the inching zone detection means is activated, the operation mode changeover switch is switched to an inching operation side, thereby causing the heel to perform inching operation by operating the inching button. In the inching operation design, a timer device outputs a time signal when a predetermined time elapses without performing inching operation with the operation mode selector switch switched to the inching operation side, and a timer device driven by the time signal, The system is configured to include a reporting device for reporting recovery.

[Operations] In the present invention, when the operation mode selector switch is switched to the inching operation side, the inching button can be operated to perform the inching operation. When a predetermined period of time elapses without performing inching operation with the changeover switch set to the inching operation side, the notification device issues a return notification in response to a time signal output from the timer. This recovery notification prevents the user from forgetting to reset the driving mode selector switch.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a circuit diagram showing the configuration of the embodiment, in which a common terminal tc of an operation mode selector switch A is connected to a DC power supply terminal P. This operation mode changeover switch A is equipped with a fill C inside, and the movable side of the contact piece has an iron core, so that when the operation mode changeover switch A is depressed, a coil C is excited. When the coil C is energized, the contact piece on the movable side is attracted and held, and when the coil C is demagnetized, the contact piece is returned to its original position by a return spring (not shown). Furthermore, when the operation mode changeover switch A is manually pulled under the excitation state of the coil C, the contact piece returns to its original position.When this switch A is pressed, it is switched to the inching operation side, and when the pressure is released, the contact piece returns to the original position. It is configured so that it can be switched to the driving side.

One end of this operation mode selector switch A is connected to terminal tY, and the other end of coil C is connected to DC power supply terminal N via contact Tb. Further, a contact 13b, a limit switch 12 for inching zone detection, an inching button PU for raising, and an inching relay for raising 17 are connected in series between the terminal t2 of the operation mode changeover switch A and the DC power supply terminal N. be. Similarly, a contact 16b, a contact 17b, and an inching operation mode release time relay T are connected in series between the terminal t2 and the DC power supply terminal N. Furthermore, a lowering inching button PD and a lowering inching relay 16 are connected in series between the connection point of the limit switch 12 and the inching button PU and the DC power supply terminal N.

In addition, between DC power terminals P and N, contact 2PB2゜contact 1
9b, the floor limit switch 2LS-contact 14b and the ascending operation selection relay 15 are connected in series with each other.

Similarly, between DC power terminals P and N, contact IPBI and contact 1 are connected.
The floor limit switch 8b, the contact 15b, and the processing operation selection relay 14 are connected in series with each other. Furthermore, the inching button PU and the inching relay 1
A contact 17a is connected between the connection point 7 and the connection point of the floor limit switch 2LS and the contact 14b. Similarly, the connection point between the inching button PD and the inching relay 16 and the floor limit switch ILS
A contact 16a is connected between the contact 15b and the contact 15b.

Further, a contact 13a and a contact 14a are connected in series between the terminal t3 of the operation mode changeover switch A and the connection point of the contact 18b and the floor limit switch ILS. Further, a contact 15a is connected between the connection point of the contact 13a and the contact 14a and the connection point of the contact 19b and the floor limit switch 2LS. A contact 2PB1 is connected in parallel to the contact 2PB2, and a contact IPB2 is connected in parallel to the contact IPBI. Further, a contact Ta and a notification device B are connected in series between the DC power terminals P and N.

In the above-described configuration, the contacts 13a and 13b are
Contacts 16a and 16b are normally open and normally closed contacts of a door closing confirmation relay (not shown), respectively, and contacts 17a and 1 are normally open and normally closed contacts of a lowering inching relay 16, respectively.
7b is a normally open contact and a normally closed contact of the rising inching relay 17, respectively. Contacts Ta and Tb are the normally open and normally closed contacts of the inching operation mode release time relay T, respectively, and contacts 14a and 14b are the normally open and normally closed contacts of the descending operation selection relay 14, respectively, and contacts 15a and 1
5b is a normally open contact and a normally closed contact of the ascending operation selection relay 15, respectively. Furthermore, the contacts 18b and 19b are normally closed contacts of a descending operating contactor and an ascending operating contactor, which are not shown, respectively.

In the embodiment with such a configuration, the limit switch 12 for inching zone detection constitutes the inching zone detection means of the present invention, and the inching operation mode release time relay T constitutes the time limit device of the present invention.

Next, the operation of the embodiment will be explained.

When the elevator car stops at a position where the inching operation is possible on the floor, the inching zone detection limit switch 12 is turned on. At this time, when the user presses the operation mode changeover switch A in the car, the coil C is energized and the contact piece is set to the terminal tl.

It is switched to the t2 side and held under suction, and then switched to the inching operation side. Therefore, in this case, if the car is to be raised to align the floors, the user presses and operates the inching button PU for raising.

By this pushing operation, a closed circuit is formed by the DC power terminal P, common terminal tc, terminal t2, contact 13b, switching zone detection limit switch 12, inching button PU, inching relay 17 for rising, and DC power terminal N. , the inching relay 17 is energized When the 1 inching relay 17 is energized, the contact 17a is turned on, and the DC power terminal P, the common terminal tc, the terminal t2, the contact 13b,
A closed circuit is formed by the inching zone detection limit switch 12, the inching button PU, the contact 17a, the contact 14b, the upward operation selection relay 15, and the DC power supply terminal N, and the upward operation selection relay 15 is energized. For this purpose, the car is operated upward within the inching zone, and the car stops at the position where the car floor and the landing floor coincide, and the limit switch 12 for detecting the inching zone is turned OFF. Operation selection relay 15 is deenergized.

In this way, there is no difference in level between the car floor and the landing floor, so users can safely carry their luggage in and out on that floor.

In this case, when the inching operation is performed and the floor alignment is completed, the inching zone detection limit switch 12 is turned off, and when the ascending inching relay 17 is deenergized, the contact 17b is turned on. When contact 17b turns ON, DC power terminal P, common terminal tc, terminal t2, contact 16b,
A closed circuit is formed by the contact 17b, the inching operation mode release time relay T, and the DC power supply terminal N, and the 1 inching operation mode release time relay T is energized to start counting. When the inching operation mode release time relay T counts up a predetermined time, the contact Tb turns OFF.

When the contact Tb is turned OFF in this way, the coil C of the operation mode changeover switch A becomes de-energized, the contact piece returns to the terminal t3 side by a return spring (not shown), and the operation mode changeover switch A is operated normally. can be switched to the side. In addition, as the inching operation mode release time relay lIT counts up, the contact Ta turns ON, so the notification device fB
sounds.

Then, the user who has completed loading and unloading the luggage notices that the operation mode selector switch A has not been reset due to the sound of the notification device B. When the user pulls the selector switch A toward him to reset the operation mode, the user notices that the inching Operation mode release time relay T is reset, contact Tb is ON, contact Ta is OFF
It becomes FF and the ringing of the notification device B stops.

When the floor alignment of the car is completed and the loading and unloading of cargo is completed, even if the inching operation mode release time relay T has not counted up, it can be reset normally by manually pulling the operation mode changeover switch A towards you. It can be switched to the driving side.

In this embodiment, the contact piece of the operation mode selector switch A is switched to the normal operation side by the count-up of the inching operation mode release time relay T, so that it becomes possible to respond to calls from other floors. Therefore, even if for some reason the user gets off the car without returning the operating mode selector switch A, the car will operate in response to a call from another floor. In this case, a user on another floor becomes aware of the ringing of the notification device B and can stop the ringing of the notification device IB by fully operating the operation mode selector switch A.

In this way, according to the embodiment, when the 1 inching operation is completed and a predetermined time has elapsed, the notification device [B performs the notification operation, so the user operates the operation mode selector switch A to return after loading and unloading the luggage. You can do this without forgetting. In addition, in the embodiment, when the inching operation ends and a predetermined period of time has elapsed, the contact piece of the operation mode selector switch A is switched to the normal operation side, so it becomes possible to respond to calls from other floors, reducing cargo handling efficiency. There's nothing to do.

In addition, in the embodiment, a case has been described in which a device of a type that makes a ringing notification is used as the notification device, but the present invention is not limited to the embodiment, and the present invention is not limited to the embodiment, and the present invention is not limited to the example, It is also possible to use the device and a device for ringing notification at the same time.

[Effects of the Invention] As explained in detail above, in the present invention, when the operation mode selector switch is switched to the inching operation side, if a predetermined time elapses without performing the inching operation, the notification device issues a return notification. Therefore, the user is made to reliably perform the return switching operation of the operation mode changeover switch. Therefore, a situation in which a car on a certain floor stops for a long time without responding to a call from another floor is prevented from occurring, and the efficiency of cargo handling operations does not decrease.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the configuration of an embodiment of the present invention. 12...Limit switch for inch leg zone detection, 14...Descent operation selection relay, 15...
・・・・Rising operation selection relay, 16.17・・・・・・
Inching relay, A... Operation mode changeover switch, T... Inching operation mode release time relay, PU, PD... Inching button, B...
...Notification device.

Claims (1)

[Claims] An elevator car that serves multiple floors is provided with an inching zone detection means, an inching button, and an operation mode changeover switch for switching the operation of the car between normal operation and inching operation, and when the inching zone detection means is activated, In an inching operation device for an elevator that causes the car to perform inching operation by operating the inching button by switching the operation mode changeover switch to the inching operation side, the operation mode changeover switch is switched to the inching operation side. An inching operation device for an elevator, comprising: a timer that outputs a timer signal when a predetermined time elapses without inching; and a notification device that is driven by the timer signal and reports return.