JP4262824B2 - Double deck elevator equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double deck elevator apparatus accommodated so that two-stage cabs are stacked in a vertically moving car frame, and in particular, a double deck capable of smoothly moving an upper cab and a lower cab. The present invention relates to an elevator apparatus.
[0002]
[Prior art]
A double-deck elevator device in which two-stage cabs are stacked in a car frame that moves up and down, and the two-stage cabs move in opposite directions in the car frame at the same speed. A deck elevator is described in, for example, Japanese Patent Laid-Open Nos. 48-76242 and 10-279231. FIG. 7 shows a double deck elevator apparatus 70 described in Japanese Patent Laid-Open No. 48-77242, and FIG. 8 shows a double deck elevator apparatus 80 described in Japanese Patent Laid-Open No. 10-279231.
[0003]
The double deck elevator apparatus 70 shown in FIG. 7 includes a car frame 73, and an upper car room 71 and a lower car room 72 that are accommodated in the car frame 73 so as to be stacked in two stages. The upper cab 71 and the lower cab 72 are connected by a rope mechanism 75 and can be moved in conjunction with each other at the same speed in opposite directions by the rope mechanism 75.
[0004]
By such movement, the distance between the upper cab 71 and the lower cab 72 can be freely changed. Therefore, even when the floors of the adjacent floors of the building where the double deck elevator device 70 is installed are different, it is possible to simultaneously adjust the cabs to the adjacent floor heights.
[0005]
The double deck elevator apparatus 80 shown in FIG. 8 also includes a car frame 83, an upper car room 81 and a lower car room 82 housed in two stages in the car frame 83. The upper cab 81 and the lower cab 82 are both connected to the cab 83 by a link mechanism 85, and can be moved in conjunction with each other at the same speed in opposite directions by the link mechanism 85.
[0006]
By such movement, the interval between the upper cab 81 and the lower cab 82 can be freely changed. Therefore, similarly to the double deck elevator device 70, even when the floors of the adjacent floors of the building where the double deck elevator device 80 is installed are different, it is possible to adjust the cabs to the adjacent floor heights at the same time. is there.
[0007]
The double deck elevator device 70 shown in FIG. 7 and the double deck elevator device 80 shown in FIG. 8 both fish the upper cab 71, 81 and the lower cab 72, 82 via a rope mechanism 75 or a link mechanism 85. In addition, for example, a method of moving with a driving force of a weight difference is adopted. By adopting such a method, downsizing of the driving means (the rope mechanism 75 or the link mechanism 85) for changing the cab interval and quick adjustment of the cab interval are realized.
[0008]
[Problems to be solved by the invention]
The adjustment of the distance between the car rooms 71 and 72 (same as the adjustment of the distance between the car rooms 81 and 82) is performed during the movement (running) of the car frame 73 (the car frame 83). The relationship between the movement of the car frame 73 and the adjustment of the car room interval will be described with reference to FIGS. 9A to 9C. 9A to 9C, only the car frame side rail is shown as the car frame 73 for convenience of illustration.
[0009]
FIG. 9A shows a state in which each cab is stopped corresponding to the adjacent floor height when the difference between the adjacent floor heights is very large. From this state, the process in which each of the cabs rises by one floor and becomes the state shown in FIG. 9C will be described.
[0010]
From the state shown in FIG. 9A, the car frame 73 starts to rise. At the same time, the driving means (rope mechanism 75) is activated to narrow the cage space.
[0011]
There is no particular problem if the adjustment of the cab space by the driving means is finished before the raising of the car frame 73 is finished. However, the raising of the car frame 73 may end before the adjustment of the car room interval by the driving means is finished. The state shown in FIG. 9B shows this latter case. In the state shown in FIG. 9B, the car frame 73 has already reached the desired position, but the distance between the car rooms is not reduced to the desired distance.
[0012]
The movement of the car frame 73 itself stops in the state of FIG. On the other hand, the adjustment of the cab spacing is continued, and finally the state shown in FIG. In this case, although the lower cab 72 draws a smooth movement trajectory, the upper cab 71 rises once and then descends, causing the passengers in the cab 71 to feel uncomfortable or uneasy.
[0013]
The present invention has been made in consideration of such points, and even when the difference in floor height is changing, the upper cab and the lower cab can be always moved smoothly. An object of the present invention is to provide such a double deck elevator apparatus.
[0014]
[Means for Solving the Problems]
The present invention includes a car frame that can be moved up and down by a car frame driving unit, an upper car room and a lower car room that are provided in the car frame so as to be able to move in conjunction with each other in opposite directions, and the upper car room, It is connected to a car room driving unit that moves the lower car room, the car frame driving unit, and the car room driving unit, and the movement of the car frame is performed by moving the car frame and the two car rooms. And a control unit that controls in a coordinated manner so that the interval adjustment between the two cabs is completed before the end of the cab, and the control unit always moves the cab frame at a speed of the cab of the cab. In this double deck elevator apparatus, the car frame driving unit and the car room driving unit are controlled so as to be faster than the speed of movement .
[0015]
According to the present invention, the movement of the car frame and the movement of the two car rooms are completed by the control unit so that the adjustment of the distance between the car rooms is completed before the movement of the car frame is finished . Since the speed is always controlled so as to be equal to or higher than the speed of movement of the cab relative to the car frame , even if the difference in floor height changes, the movement of both cabs is always controlled. It is possible to carry out smoothly.
[0016]
The present invention also includes a car frame that can be moved up and down by a car frame drive unit, an upper car room and a lower car room that are provided in the car frame so as to be able to move in opposite directions, and the upper car room. And a cab driving unit for moving the lower cab, and a control device for controlling a double deck elevator apparatus, wherein the cab driving unit and the cab driving unit are connected to each other. The movement of the car frame and the movement of the two car rooms are performed so that the adjustment of the distance between the two car rooms is completed before the movement of the car frame is finished, and the speed of the movement of the car frame is always The control device is characterized in that the control is performed in a coordinated manner so that the speed of the cab is higher than the speed of movement of the cab relative to the car frame .
[0017]
According to the present invention, the movement of the car frame and the movement of the two car rooms are such that the distance adjustment between the two car rooms is completed before the movement of the car frame is finished, and the speed of the movement of the car frame is always constant. Since it is controlled in a coordinated manner so as to be faster than the speed of movement of the cab relative to the cab frame , the cabs should always move smoothly even when the difference in floor height changes. Is possible.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0019]
FIG. 1 is a schematic configuration diagram showing a double deck elevator apparatus according to a first embodiment of the present invention. As shown in FIG. 1, the double deck elevator apparatus 20 according to the first embodiment of the present invention includes a car frame 3 that can be moved up and down by car frame driving units 6, 7, and 8, and a car frame 3 that is opposite to each other. An upper cab 1 and a lower cab 2 are provided so as to be movable in conjunction with the direction. The upper cab 1 has an open / close door 1a, and the lower cab 2 has an open / close door 2a.
[0020]
As shown in FIG. 1, the car frame driving unit includes a main rope 6 having one end fixed to the car frame 3, a counterweight 7 suspended from the other end of the main rope 6, and the main rope 6. The hoisting machine 8 is a hoisting machine.
[0021]
The upper car room 1 and the lower car room 2 are connected to a car driving device 4 (car room driving unit) via a connecting rope 5. Accordingly, the car driving device 4 moves the upper car room 1 and the lower car room 2 in the opposite directions at the same speed.
[0022]
The hoisting machine 8 and the car driving device 4 are connected to a control unit 11 that controls the movement of the car frame 3 and the movements of the car rooms 1 and 2 in a coordinated manner.
[0023]
The control unit 11 is configured as a speed control command device that controls the hoisting machine 8 and the car driving device 4 so as to align the two car rooms 1 and 2 to a desired adjacent floor height.
[0024]
The control unit 11 is connected to a storage unit 12 that stores the floor height. It is preferable that the memory | storage part 12 has also memorize | stored the difference of the adjacent floor height. The control unit 11 and the storage unit 12 are installed in a control device 10 provided apart from the car frame 3.
[0025]
The control unit 11 according to the present embodiment is arranged so that the speed of the car frame 3 is always higher than the speed of movement of the upper car room 1 and the lower car room 2 with respect to the car frame 3. The drive device 4 is controlled. Specifically, when there is a possibility that the movement of the car frame 3 may be completed earlier than the adjustment of the distance between the car rooms 1 and 2, the distance between the car rooms 1 and 2 before the desired movement of the car frame 3 is reached. And a displacement amount that is a half of the absolute value of the difference between the distance between the car compartments 1 and 2 after the movement of the car frame 3 (corresponding to the displacement amount of the car compartments 1 and 2 relative to the car frame 3). The car frame 3 has a deceleration command section 11a that starts predetermined deceleration control for the hoisting machine 8 before the position (target position) after the movement.
[0026]
Next, the operation of the present embodiment having such a configuration will be described with reference to FIG.
[0027]
When the destination floor of the movement is specified (STEP 01), the controller 11 starts driving the hoisting machine 8, and the movement of the car frame 3 is started (STEP 02).
[0028]
At the same time, the control unit 11 stores information on the height of each floor of the car rooms 1 and 2 before moving (at the time of departure) and the height of each floor of the car rooms 1 and 2 after moving (target position). (STEP03). Based on these information, the control program for the hoisting machine 8 set in advance, the time taken for the car frame 3 to move by the hoisting machine 8, the control program for the car driving device 4 set in advance, etc. The time required for adjusting the distance between the car rooms 1 and 2 by the driving device 4 is calculated, and it is determined which time is longer (STEP 04).
[0029]
When the time required for moving the car frame 3 is longer than the time required for adjusting the distance between the car rooms 1 and 2 (in the case of No in STEP 04), the target adjacent floor height and the car rooms 1, The controller 11 drives the car driving device 4 so that the interval 2 becomes equal (STEP 11). Here, the control unit 11 moves the car frame 3 at a speed V! The hoisting machine 8 and the car driving device 4 are controlled so that the speed is always equal to or higher than the moving speed V2 of the upper car room 1 and the lower car room 2 with respect to the car frame 3 (STEP 12).
[0030]
By such control, the movement of the car frame 3 by the hoisting machine 8 is finished after the adjustment of the distance between the car rooms 1 and 2 is finished (STEP 13). In this case, the moving directions of the two car rooms 1 and 2 can always coincide with the moving directions during the movement of the car frame 3.
[0031]
Next, when the time required for moving the car frame 3 is shorter than the time required for adjusting the distance between the two car rooms 1 and 2 (in the case of YES in STEP 04), the upper car room 1 and the lower car room For each of the two open / close doors 1a and 2a, the presence / absence of an open / close request at the target adjacent floor height is checked (STEP 05). For example, as shown in FIG. 3, when only one cab is used, the opening / closing request may not be made to the open / close door of the other cab.
[0032]
If there is no opening / closing request for one of the doors 1a or 2a at the target adjacent floor height (No in STEP 05), the distance between the two car rooms 1 and 2 is not adjusted. The movement of the car frame 3, that is, the hoisting machine 8 is controlled with reference to the car room 2 or 1 having the opening / closing door 2a or 1a on which the opening / closing request exists without operating the driving device 4. (Step 21).
[0033]
When there is an opening / closing request for both the doors 1a and 2a (in the case of YES in STEP 05), the control unit is set so that the desired adjacent floor height and the distance between the two car rooms 1 and 2 are equal. 11 controls the car driving device 4 (STEP 31). Here, the controller 11 is controlled so that the speed V1 of the car frame 3 is always equal to or higher than the moving speed V2 of the upper car room 1 and the lower car room 2 with respect to the car frame 3 (STEP 32).
[0034]
Further, the deceleration command unit 11a of the control unit 11 determines the distance D1 (see FIG. 4) between the car rooms 1 and 2 before the movement and the target distance D2 between the car rooms 1 and 2 after the movement (see FIG. 4). Of the absolute value | D1-D2 | of the difference between the car chambers (corresponding to the displacement of the car chambers 1 and 2 with respect to the car frame 3) is calculated, and the displacement amount is calculated from the target position of the car frame 3. When the car frame 3 passes just in front, deceleration control of the car frame 3 is started (STEP 33). By this deceleration control, it is possible to always match the moving directions of the car rooms 1 and 2 with the moving direction during the movement of the car frame 3.
[0035]
A specific example of the state of the car frame 3 and the car compartments 1 and 2 when the deceleration command unit 11a operates as described above will be described with reference to FIGS. 4 (a) to 4 (c). 4 (a) to 4 (c), in FIGS. 4 (a) to 4 (c), for the convenience of illustration, the car frame 3 shows only the car frame side rails.
[0036]
FIG. 4A shows a state before movement in which the upper cab 1 is aligned with the floor height B and the lower cab 2 is aligned with the floor height C adjacent to the floor height B. Consider the case where the upper cab 1 is moved to the floor height A and the lower cab 2 is aligned to the floor height B adjacent to the floor height A from this state as shown in FIG.
[0037]
First, it is specified that the destination floors are floor heights A and B (STEP 01). Next, the car frame 3 is controlled to rise upward at the speed V1 (STEP 02).
[0038]
At the same time, the control unit 11 takes out the information of the floor heights A, B, and C stored in the storage unit 12 (STEP 02), and sets the control program for the hoisting machine 8 and the control program for the car driving device 4 that are set in advance. When the car frame 3 is used as it is, the time for moving the car frame 3 from the position shown in FIG. 4A to the position shown in FIG. The time for adjusting the distance D1 (difference between floor heights B and C) to the distance D2 after movement (difference between floor heights A and B) is instantaneously calculated.
[0039]
In this case, the former time is shorter than the latter time, and it is assumed that there is an opening / closing request for both the doors 1a, 2a of the car rooms 1, 2, so that the control unit 11 passes through STEP 04 and STEP 05. The car driving device 4 is driven, and the car rooms 1 and 2 are moved in the opposite directions at the same speed V2 (STEP 31). The speed V1 is controlled so as to be always equal to or higher than the speed V2 (STEP 32).
[0040]
The deceleration command unit 11a of the control unit 11 calculates the absolute value | D1-D2 | of the difference between the distance D1 between the car rooms 1 and 2 before movement and the distance D2 between the car rooms 1 and 2 after movement. When a half displacement amount (corresponding to a displacement amount of the car chambers 1 and 2 with respect to the car frame 3) is calculated, the car frame 3 passes by the above displacement amount from the target position of the car frame 3 ( The deceleration control is started in this state (shown in FIG. 4B).
[0041]
Thereafter, deceleration control is performed so that the amount of movement of the car frame 3 does not exceed the amount of movement of the car rooms 1 and 2 relative to the car frame 3, and the direction of movement of the car rooms 1 and 2 is the movement of the car frame 3. The state always consistent with the moving direction is maintained, and the state shown in FIG. 4C is reached.
[0042]
As described above, according to the present embodiment, the control unit 11 controls the vertical movement of the car frame 3 and the movement of the two car rooms 1 and 2 in a coordinated manner, so that the difference in floor height changes. Even if it is a case, it is possible to always move both the cabs 1 and 2 smoothly.
[0043]
In addition, according to the present embodiment, since both the car rooms 1 and 2 move in the opposite directions and move at the same speed, the entire car frame 3 due to the relative movement of both the car rooms 1 and 2. The center of gravity of the car frame 3 is suppressed, and the control characteristics of the car frame 3 are good.
[0044]
Moreover, according to this Embodiment, since both the car rooms 1 and 2 are aligned with the desired adjacent floor height, both the car rooms 1 and 2 can be utilized effectively.
[0045]
Moreover, according to this Embodiment, since the memory | storage part 12 which memorize | stores floor height is provided, floor height information can be utilized rapidly.
[0046]
Further, according to the present embodiment, the speed of movement of the car frame 3 is always higher than the speed of movement of the car chambers 1 and 2 relative to the car frame 3 by the deceleration control as described above by the deceleration command unit 11a. Therefore, the two car rooms 1 and 2 are prevented from moving in the direction opposite to the moving direction of the car frame 3. This prevents the passengers in the cabs 1 and 2 from feeling uncomfortable or uneasy.
[0047]
Furthermore, since the deceleration command unit 11a is activated only when the movement of the car frame 3 may end earlier than the adjustment of the distance between the car rooms 1 and 2, efficient control is possible. realizable.
[0048]
Next, a double deck elevator apparatus according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a schematic configuration diagram of a double deck elevator apparatus according to the second embodiment.
[0049]
As shown in FIG. 5, the double deck elevator apparatus 20 according to the present embodiment is configured such that, instead of the deceleration command unit 11 a, the distance between the car rooms 1 and 2 during the desired movement of the car frame 3 and the car frame 3 concerned. The predetermined deceleration control for the hoisting machine 8 is started by a half of the absolute value of the difference between the distance between the two car rooms 1 and 2 after the movement and before the position after the movement of the car frame 3. 2 deceleration command part 11b is provided.
[0050]
Other configurations are the same as those of the first embodiment shown in FIG. In the second embodiment, the same parts as those in the first embodiment shown in FIG.
[0051]
The flow of operation of this embodiment is shown in FIG. The operation flow shown in FIG. 6 is the same as that shown in FIG. 2 except that STEP 34 is replaced by STEP 44.
[0052]
In other words, in the present embodiment, the second deceleration command unit 11b determines that the absolute value of the difference between the distance between the moving car rooms 1 and 2 and the desired distance D2 between the car rooms 1 and 2 after the movement is 2. When the car frame 3 passes a distance from the target position of the car frame 3 by the amount of displacement (corresponding to the remaining displacement with respect to the car frame 3 of the car chambers 1 and 2). Deceleration control of the car frame 3 is performed as appropriate.
[0053]
For example, in the state shown in FIG. 4B, since the distance between the car rooms 1 and 2 is D3, the absolute value of the difference between the desired distance D2 between the car rooms 1 and 2 after the movement is two minutes. Of 1 is | D3-D2 | / 2.
[0054]
According to the present embodiment, since the deceleration control of the car frame 3 is appropriately performed based on the distance between the moving car rooms 1 and 2, the moving direction of the car rooms 1 and 2 is set to the car frame 3. It is more reliably ensured that the movement direction always coincides with the movement direction.
[0055]
【The invention's effect】
As described above, according to the present invention, the movement of the car frame and the movement of the two car rooms are completed by the control unit so that the interval adjustment between the two car rooms is completed before the movement of the car frame is finished, and Since the speed of the car frame is always controlled so as to be equal to or higher than the speed of the car room relative to the car frame , even if the difference in floor height changes, both cars It is possible to always move the room smoothly. Therefore, it is possible to effectively prevent the passengers in the car from feeling uncomfortable or uneasy.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a first embodiment of a double deck elevator apparatus according to the present invention.
FIG. 2 is a diagram for explaining the operation of the double deck elevator apparatus of FIG. 1;
FIG. 3 is a diagram showing a state where only one of the cabs is used.
FIG. 4 is a diagram illustrating a control state when a deceleration command unit is activated.
FIG. 5 is a schematic configuration diagram showing a second embodiment of a double deck elevator apparatus according to the present invention.
6 is a diagram for explaining the operation of the double-deck elevator device of FIG. 5;
FIG. 7 is a schematic configuration diagram showing a conventional double deck elevator apparatus.
FIG. 8 is a schematic configuration diagram showing another conventional double deck elevator apparatus.
FIG. 9 is a view for explaining the relationship between the conventional movement of the car frame and the adjustment of the cab space.
[Explanation of symbols]
20 Double deck elevator apparatus 1 Upper car room 1a Open / close door 2 Lower car room 2a Open / close door 3 Car frame 4 Car drive device 5 Connecting rope 6 Main rope 7 Counterweight 8 Hoisting machine 10 Controller 11 Controller 11a Deceleration command unit 11b Second deceleration command unit 12 Storage unit 70, 80 Double deck elevator devices 71, 81 Upper car room 72, 82 Lower car room 73, 83 Car frame 75 Rope mechanism 85 Link mechanism

Claims (6)

A car frame movable up and down by a car frame driving unit;
In the car frame, an upper car room and a lower car room that are movable in conjunction with each other in opposite directions, and
A cab driving unit for moving the upper cab and the lower cab;
The car frame driving unit and the car room driving unit are connected to each other so that the movement of the car frame and the movement of the both car chambers are finished before the movement of the car frame is finished. In addition, a control unit that controls in cooperation,
Equipped with a,
The control unit controls the car frame driving unit and the car room driving unit so that the moving speed of the car frame is always equal to or higher than the moving speed of the car room with respect to the car frame. going on <br/> be double-deck elevator apparatus according to claim.   The double deck elevator apparatus according to claim 1, wherein the upper cab and the lower cab are movable in conjunction with each other at the same speed.   The said control part controls the said car frame drive part and the said car room drive part so that the said both car rooms may align with the desired adjacent floor height, The said car room drive part is characterized by the above-mentioned. The double deck elevator apparatus according to 1 or 2.   The double-deck elevator apparatus according to claim 3, wherein the control unit is connected to a storage unit that stores the floor height. The upper cab has an upper door.
The lower cab has a lower opening / closing door,
The said control part does not operate the said cab drive part, when operating only one of the said upper opening door or the said lower opening door, The any one of the Claims 1 thru | or 4 characterized by the above-mentioned. Double-deck elevator system according to any. A car frame movable up and down by a car frame driving unit;
In the car frame, an upper car room and a lower car room that are movable in conjunction with each other in opposite directions, and
A cab driving unit for moving the upper cab and the lower cab;
A control device for controlling a double-deck elevator device, comprising:
The car frame driving unit and the car room driving unit are connected to each other so that the movement of the car frame and the movement of the both car chambers are finished before the movement of the car frame is finished. In addition, the control device controls the car frame in a coordinated manner so that the moving speed of the car frame is always equal to or higher than the moving speed of the car room with respect to the car frame .

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