JPH05193845A - Car floor correcting device for hydraulic elevator - Google Patents

Abstract

PURPOSE:To provide a car floor correcting device for a hydraulic elevator wherein in-out handling to/from a car of an automatic conveying vehicle or the like, associated with operation of the elevator, can be facilitated by decreasing a level difference between a car floor and a landing floor, when the car during stopping is sunk. CONSTITUTION:A landing call detecting device 17 of a stop story of a car is provided, to lift the car by an upper floor aligning relay 7 when this device 17 is actuated, and to stop once the car when reaching an action point of a lower floor aligning switch 4a, and next to lower down the car by a lower floor aligning relay 8 performing floor aligning action, so that a level difference between a car floor and a landing floor is decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compensating device for a floor of a car in a hydraulic elevator.

[0002]

2. Description of the Related Art FIG. 2 shows, for example, Japanese Utility Model Laid-Open No. Sho 63-190266.
FIG. 7 is an array diagram schematically showing a switch and a cam for operating the switch of the car floor compensating device in the conventional hydraulic elevator disclosed in Japanese Patent Laid-Open Publication No. H11-242242. In FIG. 2, reference numeral 1 is a car, 2 is an upper floor alignment switch which is provided on the side of the car 1 and detects that the floor surface of the car 1 is below the landing floor surface 6 by a predetermined distance. Sometimes it operates at a predetermined position and issues a stop command. 3 is a cam which is fixed to the hoistway side and operates the upper floor alignment switch 2. 4 is provided on the side of the car 1 to detect that the floor of the car 1 is above the landing floor 6 by a predetermined distance. With the floor alignment switch, when the car 1 is raised, it operates at this predetermined position and issues a stop command. Reference numeral 5 is a cam which is fixed to the hoistway side and operates the lower floor alignment switch 4. The upper floor alignment switch 2, the cam 3, the lower floor alignment switch 4, and the cam 5, which are a pair respectively, are arranged in the vertical direction of the car 1 as shown in FIG. It is provided in a row.

FIG. 4 is a diagram showing the relationship between the reference position for stopping the car 1 set for each floor and the operating positions of the upper floor alignment switch 2 and the lower floor alignment switch 4. In FIG. 4, the operating position of the upper floor alignment switch 2 is shown between P and R, and the point P is R below the stopping reference position of the car 1 by l.
It is a predetermined distance m above the point. The position between Q and S indicates the operating position of the lower floor alignment switch 4, and the point Q is a predetermined distance n from the point S, which is l above the stop reference position of the car 1.

FIG. 5 is a circuit diagram of a conventional car floor correction device for a hydraulic elevator. 5, 2a is a normally closed contact of the upper floor alignment switch 2, 4a is a normally closed contact of the lower floor alignment switch 4, 7 is an upper floor alignment relay, 7a is its normally open contact, 7b is a normally closed contact, 8 Is the lower floor alignment relay, 8
a is its normally open contact, 8b is also a normally closed contact, 9a and 9
b is a normally open contact of a high speed relay (not shown) that is energized from the high speed running command to the deceleration start point, and 10a to 10f are normally open contacts of a relay (not shown) that is energized during automatic operation.
Is an ascending traveling relay, 11a is a normally closed contact, 11b is a normally open contact, 12 is a descending traveling relay, 12a is a normally closed contact, 12b is a normally open contact, 13a is a landing switch relay (not shown) Normally open contact, 14 is a normally open contact of a car door close confirmation relay (not shown), 15 is a normally open contact of an ascending direction relay (not shown), and 16 is a normally open of a descending direction relay (not shown). It is a contact point.

In the conventional car floor compensating device having the above-mentioned structure, if the car 1 is stopped within the predetermined distance l from the stop reference position shown in FIG. 4, the upper floor alignment switch 2 and the lower floor alignment switch 4 are placed. 4 are operated by the corresponding cams 3 and 3 as shown in FIG. 4 and the normally-closed contacts 2a and 4a shown in FIG. 5 are open, the upper floor alignment relay 7 is operated during automatic operation. And lower floor alignment relay 8
Is dead.

[0006] When the stopped car 1 sinks to a predetermined distance l or less from the stop reference position due to contraction of oil in the cylinder due to temperature decrease and oil leakage from the check valve with the passage of time, the upper floor alignment switch 2 Is removed from the cam 3 and the normally closed contact 2a is closed, so that the upper floor alignment relay 7 is energized by the circuit of T-2a-7-u. On the other hand, the lower floor alignment switch 4 continues to operate by the cam 5, and the normally closed contact 4a is open, so the lower floor alignment relay 8 is deenergized.

By closing the normally-closed contact 7a by energizing the upper floor alignment relay 7, T-10c-8b-7a-12a.
When the ascending running relay 11 of the -11-u circuit is energized to raise the car 1 and reach the position where the upper floor alignment switch 2 is operated by the cam 3, the normally closed contact 2a of the upper floor alignment switch 2 opens. , The upper floor alignment relay 7 is de-energized, and the ascending traveling relay 11 is de-energized by opening the normally-closed contact 7a, the car 1 is stopped, the position correction operation by sinking is finished, and it is stopped again with the passage of time. When the distance from the reference position falls below the predetermined distance l, the same position correction operation as described above is repeated.

[0008]

In the conventional car floor compensating device for a hydraulic elevator as described above, even if the car floor sinks due to the contraction of the oil in the cylinder, which is a drawback of the hydraulic elevator, the floor of the car is lowered. If the car does not sink more than the predetermined working distance determined by the relative position of the adjusting switch and the cam that operates it, the correction operation will not be performed.When the sinking distance is large, for example, the level difference between the hall and the car will be as small as possible. In the case of automatic driving in which a car and a car that moves in and out of a car, which are required to be few, are interlocked with each other, there is a problem that a carrier cannot smoothly move in and out due to a step difference between a landing floor and a car floor.

The present invention has been made in order to solve the above problems, and makes it easy to move in and out in the case of automatic operation with a transport vehicle by reducing the level difference between the car floor during landing and the landing. It is intended to obtain a car floor correction device for a hydraulic elevator.

[0010]

A car floor compensating device for a hydraulic elevator according to the present invention has a stop floor even if a car in stop is not sunk to a level at which a predetermined car floor compensating operation is performed. When there is a hall call, the hall call stop correction means operates to raise the car and then lower the car to stop it at a predetermined position to correct the car floor.

[0011]

In the present invention, the upper floor alignment relay is activated when a landing call for a stop floor is detected, and the descent floor alignment relay is activated to stop the car at a predetermined position after a certain period of time.

[0012]

FIG. 1 is a circuit diagram of a car floor compensating device for a hydraulic elevator according to an embodiment of the present invention, and shows a configuration when the floor is limited to the first floor and the second floor. In the figure, 1 to 16 are the same as or equivalent to the parts with the same reference numerals in FIG. 5 showing the circuit configuration of the conventional example. The configuration of the upper and lower floor alignment switches 2 and 4 and the operating position from the stop reference position are shown in FIG.
~ Same as FIG. 4. 8c is a normally closed contact of the lower floor alignment relay 8, 13b is a normally open contact of a landing lock switch relay (not shown), 17 is a landing call detection relay, and 17a and 1a.
7b is a normally open contact, 19 and 20 are normally open contacts of a landing call relay (not shown) on the first floor and the second floor, respectively.
Reference numerals 22 and 22 are normally-open contacts of floor detection relays (not shown) on the first and second floors, and 23 are normally-closed contacts of a traveling time-relay (not shown) that is energized when the car 1 travels for a certain period of time after traveling. Is.

Next, the operation of the car floor compensating device for the hydraulic elevator according to this embodiment having the above-mentioned structure will be described.
In this case, the car 1 is on the first floor in the door-closed waiting state, and
It is assumed that there is an incoming call on the floor. Basket 1 is 1
When waiting for the door to close on the floor, the normally open contact 21 of the floor detection relay (not shown) on the first floor and the normally open contact 13b of the landing lock switch relay (not shown) on the first floor are closed. When there is a hall call on the first floor in this state, the normally open contact 19 of the hall call relay (not shown) on the first floor is closed, and T-19
The hall call detection relay 17 of the -21-17-u circuit is energized, and the normally open contacts 17a and 17b of the relay call detection relay 17 are closed. Therefore, the upper floor alignment relay 7 of the T-17b-8c-7-u circuit is energized and the normally open contact 7a thereof is closed.
The ascending traveling relay 11 of the T-10c-8b-7a-12a-11 circuit is energized to raise the car 1.

When the car 1 rises to a position where the upper floor alignment switch 2 is operated by the cam 3, the normally closed contact 2a
Is opened, the upper floor alignment relay 7 is de-energized, and the ascending traveling relay 11 is de-energized by opening the normally closed contact 7a.
Will stop. At this time, the car 1 is the lower floor alignment switch 4
Has risen to a position where it is separated from the cam 5, so that the lower floor alignment relay 8 is energized by closing the normally closed contact 4a.

When a certain period of time elapses after the car 1 is stopped,
The traveling time relay (not shown) is energized, and the normally open contact 23 of the traveling time relay is closed, and T-10f-7b-23-8a-11 is opened.
When the descending traveling relay 12 of the a-12-u circuit is energized and the car 1 descends to reach the position where the lower floor alignment switch 4 is operated by the cam 5, the normally closed contact 4a opens and lower floor alignment is performed. The relay 8 is de-energized, and the descending traveling relay 12 is de-energized by opening the normally open contact 8a, the car 1 is stopped, and the car floor correction operation is completed. Incidentally, even when the car is stopped on another floor, the car floor is corrected by the same operation as described above.

[0016]

As described above, according to the present invention,
Correcting the car position during landing Even if the car is not sunk to a specified distance, the car floor registration is performed by operating the upper floor alignment relay and the lower floor alignment relay when there is car call registration at the landing. Therefore, it is possible to obtain a car floor compensating device for a hydraulic elevator in which the level difference between the car and the landing is small and the car can be easily moved in and out of the car linked with the operation of the elevator.

[Brief description of drawings]

FIG. 1 is a circuit diagram of a car floor correction device for a hydraulic elevator according to an embodiment of the present invention.

FIG. 2 is an array diagram schematically showing a floor alignment switch and a cam for operating the floor alignment switch of a car floor correction device in a conventional hydraulic elevator.

FIG. 3 is a side view partially showing an arrow A in FIG.

FIG. 4 is a diagram showing a relationship between a car stop reference position and an operation position of a floor alignment switch.

FIG. 5 is a circuit diagram of a conventional cage floor correction device for a hydraulic elevator.

[Explanation of symbols]

 1 car 2 upper floor alignment switch 4 lower floor alignment switch 6 landing floor 7 upper floor alignment relay 8 lower floor alignment relay 17 landing call detection relay

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[Procedure amendment]

[Submission date] March 12, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art FIG. 2 shows, for example, Japanese Utility Model Laid-Open No. Sho 63-190266.
FIG. 7 is an array diagram schematically showing a switch and a cam for operating the switch of the car floor compensating device in the conventional hydraulic elevator disclosed in Japanese Patent Laid-Open Publication No. H11-242242. In FIG. 2, reference numeral 1 is a car, 2 is an upper floor alignment switch which is provided on the side of the car 1 and detects that the floor surface of the car 1 is below the landing floor surface 6 by a predetermined distance. Sometimes it operates at a predetermined position and issues a stop command. Reference numeral 3 is a cam fixed to the hoistway side to operate the upper floor alignment switch 2 and 4 is provided on the side of the car 1 to detect that the floor surface of the car 1 is above the landing floor surface 6 by a predetermined distance. With the floor alignment switch, when the car 1 descends, it operates at this predetermined position and issues a stop command. Reference numeral 5 is a cam which is fixed to the hoistway side and operates the lower floor alignment switch 4. The pair of upper floor alignment switch 2, cam 3 and lower floor alignment switch 4 and cam 5, which are paired, respectively, are arranged in the vertical direction of the car 1 as shown in FIG. It is provided in a row.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

In the conventional car floor compensating device having the above-mentioned structure, if the car 1 is stopped within the predetermined distance l from the stop reference position shown in FIG. 4, the upper floor alignment switch 2 and the lower floor alignment switch 4 are placed. 4 are operated by the corresponding cams 3 and 5 as shown in FIG. 4, and the normally-closed contacts 2a and 4a shown in FIG. 5 are open. And lower floor alignment relay 8
Is dead.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

When the normally open contact 7a is closed by urging the upper floor alignment relay 7, the T-10c-8b-7a-12a is closed.
When the ascending traveling relay 11 of the -11-u circuit is energized to raise the car 1 and reach the position where the upper floor alignment switch 2 is operated by the cam 3, the normally closed contact 2a of the upper floor alignment switch 2 opens. , The upper floor alignment relay 7 is deenergized, and the ascending traveling relay 11 is deenergized by opening the normally open contact 7a thereof, the car 1 is stopped and the position correction operation due to the sinking is completed, and it is stopped again with the passage of time. When the distance from the reference position falls below the predetermined distance l, the same position correction operation as above is repeated.

[Procedure correction 4]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

When the car 1 rises to a position where the lower floor alignment switch 4 is operated by its cam 5, the normally closed contact 4a
Is closed, the lower floor alignment relay 8 is energized, its normally closed contact 8c is opened, the upper floor alignment relay 7 is deenergized, and its normally open contact 7a is opened. As a result, the ascending traveling relay 11 is de-energized and the car 1 is stopped. At this time, since the car 1 is raised to the position where the lower floor alignment switch 4 is disengaged from the cam 5, the lower floor alignment relay 8 is energized by closing the normally closed contact 4a.

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (2)

[Claims] 1. When the car floor sinks below a predetermined level from the landing floor, the car floor does not reach the above-mentioned predetermined sinking level when there is a landing call for a stop floor in a hydraulic elevator that performs car floor correction. Also, a car floor correction device for a hydraulic elevator, characterized in that it is provided with a hall call detection and correction means for activating the upper floor alignment means and then operating the lower floor alignment means to stop the car at a predetermined position. 2. The hydraulic elevator according to claim 1, further comprising travel time limit means for activating the lower floor alignment means when a fixed time period has elapsed after the car is stopped by the operation of the upper floor alignment means. Cage floor correction device.