JP4580069B2 - Dam Waiter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dam waiter in which a basket door provided inside a doorway can be automatically opened and closed in conjunction with the doorway.
[0002]
[Prior art]
In general, as shown in FIG. 9, a door 1 is provided at the entrance of a dam waiter used for raising and lowering articles in a building. The door 1 is opened and closed to open and close the elevator 2 in the cylinder. It comes to carry in and out.
[0003]
For this reason, as the entrance door 1, a vertical opening / closing type that is easy to carry in and out is usually used.
[0004]
As shown in FIG. 9, the upper and lower doors, upper door 1a and lower door 1b of this vertical opening / closing door 1 are connected by a door wire 4 via a drive pulley 3, and when the upper door 1a is slid upward, When the upper door 1a is slid downward, the lower door 1b is slid upward to close the inlet / outlet port 1b.
[0005]
By the way, most of the troubles in the dam waiter are that an article protruding from the basket 2 is caught on a bracket or the like while being lifted and stopped abnormally.
[0006]
In order to prevent this problem, it should be possible to solve the problem by providing a basket door between the door 1 and the basket 2 so that the article does not close when the article protrudes from the basket 2.
[0007]
However, this method is inconvenient because it is necessary to open and close the door 1 in addition to opening and closing the door each time an article is taken in and out. Therefore, it is conceivable to provide a link mechanism for automatically opening and closing the door 1 in conjunction with the door 1. In this way, it is not inconvenient even if a car door is provided, and breakdown can be reduced.
[0008]
[Problems to be solved by the invention]
However, when the link mechanism as described above is provided, the installation accuracy of the mechanism parts is the same as that of the elevator, so the same installation accuracy as that of the elevator is required.
[0009]
At that time, it is necessary to incorporate a link part between the cage door and the entrance door, but there is a problem that it is difficult to maintain the running clearance at 10 mm (a gap in which the caster of the wheelbarrow can be taken in and out).
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to make it possible to open and close a basket door by the same operation as that of a conventional method of use and to prevent a failure due to an article being caught.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the present invention, by opening and closing operations, a basket door composed of an upper door and a lower door that slides up and down is provided between an entrance door of the dam waiter that is composed of an upper door and a lower door that slides up and down and an elevator cage of the dam waiter Provided with an opening / closing mechanism that slides the cage door up and down by motor drive, a closing confirmation means for detecting that the cage door is in the closed position, and an opening confirmation for detecting that the cage door is in the open position And an open detection means for detecting that the doorway is in the closed position, and the opening detection means detects that the doorway is not in the closed position and detects that the doorway is in the open position. Then, the motor is driven and opened by the opening / closing mechanism until the basket door is detected by the opening confirmation means, while the opening / closing mechanism is used for opening / closing. Kuchido will detect that it is in the closed position, when the loading and unloading opening door is detected to be not in the open position, the car door by driving the motor has adopted the configuration that is closed by the opening and closing mechanism until detected by the closed check means It is.
[0012]
By adopting such a configuration, when the entrance door is opened, the entrance door that has reached the open position is detected by the opening detection means, and the motor is driven to slide until the opening confirmation means detects the basket door, The basket door can be opened. When the opened door is closed, it is detected by the opening detection means that the door is not in the open position, and the motor is driven to slide until the closing confirmation means detects the door, so the door is closed. be able to.
[0013]
At this time, a closing detection means for detecting that the entrance door is in the open position is provided, and the opening detection means detects that the entrance door is not in the closed position, and at the same time, the entrance door is opened by the closing detection means. If the opening / closing door is opened by detecting that the door is not open, the opening / closing mechanism opens until the opening confirmation means detects that the car door is in the open position by driving the motor. Can be adopted.
[0014]
By adopting such a configuration, when the closed doorway is opened, the opening of the doorway is detected by the closing detection means, and the basket door can be operated immediately. Can be done.
[0015]
Further, at that time, the closing detection means and the opening detection means are constituted by magnetic detection means facing each other when the magnet attached to the entrance door and the entrance door to which the magnet is attached are respectively in the open / close position. Thus, the door can be opened and closed without contact, so that electrical wiring can be eliminated, and at the same time, the detection means can be prevented from being damaged by the opening and closing operation.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 shows a first embodiment.
[0018]
In this form of the dam waiter, a cage door 10 is provided between the entrance door 1 and the lifting cage 2.
[0019]
The basket door 10 is an up-and-down opening / closing type that slides the upper door 1a and the lower door 1b up and down like the entrance door 1 and the upper door 10a and the lower door 10b are door wires via a pulley 3 'as shown in FIG. 4 are connected.
[0020]
A door driving motor 11 is attached to one side of the pulley 3 ', and the upper door 10a and the lower door 10b can be opened and closed by rotating the motor 11 forward and backward.
[0021]
Further, in the case of this embodiment, the upper door 10a is provided with an engagement plate 12, and limit switches l1 and l2 that contact the engagement plate 12 are provided at two locations with a jig as shown in FIG. L1 and the opening confirmation means L2 are comprised.
[0022]
That is, the limit switch 11 is provided at a position where the upper door 10a of the cage door 10 is in contact with the engagement plate 12 when the upper door 10a is in the closed position, and the limit switch 12 is connected with the engagement plate 12 when the upper door 10a is in the open position. It is provided at a position where it abuts.
[0023]
On the other hand, a magnet M is attached to the entrance door 1 as shown in FIG. The magnet M is attached to the inner side of the upper door 1a, and in the form facing the magnet M, in this form, the proximity switch q1 is provided on the frame to form the open detection means Q1.
[0024]
That is, the proximity switch q1 of the open detection means Q1 operates to face the magnet M when the upper door 1a of the access door 1 is in the closed position, so that the open / close state of the access door 1 can be detected without contact. Even when the entrance door 1 is handled roughly, the detection means Q1 is not easily broken.
[0025]
Since the cage door 10 and the entrance door 1 are provided with the engagement plate 12 and the magnet M in this way, there is no need to lay electrical wiring on the cage door 10 and the entrance door 1 which are movable members, and a disconnection accident occurs. Does not cause malfunctions.
[0026]
The limit switches l2 and l2 and the proximity switch q1 are connected to the control circuit 13 as shown in FIG.
[0027]
In this embodiment, the control circuit 13 includes a microcomputer, a drive circuit, and the like. For example, the microcomputer drives the motor 11 along a flowchart as shown in FIG. I do. In this embodiment, a microcomputer is used for the control circuit 13, but the present invention is not limited to this, and it is obvious that the control circuit 13 can also be constituted by a sequential circuit using a relay or the like.
[0028]
This embodiment is configured as described above. Next, the operation will be described with reference to the flowchart of FIG.
[0029]
Now, the control circuit 13 that has started processing (“processing” 100: hereinafter “processing” is omitted) reads the state of the proximity switch q1 by a polling operation (120), and the following (1) to (6) The opening / closing operation of the basket door 10 can be interlocked with the opening / closing operation of the door 1 which is roughly classified as follows. That is,
[0030]
(1-1) When the door 1 is completely opened from the closed state In this case, when the door 1 is opened from the closed state, the proximity sensor q1 (hereinafter, Q1) of the open detection means Q1 is immediately turned off (120 ). Then, the limit switch l2 that is the opening confirmation means L2 and the limit switch l1 that is the closure confirmation means L1 are detected, and the limit switch l1 (hereinafter referred to as L1 ) is turned on , indicating that the car door 10 is closed. When the switch l2 (hereinafter referred to as L2 ) is detected from OFF (130, 140), the motor 11 is operated (forward rotation in this case) (150) to open the basket door 10. Therefore, the basket door 10 starts opening at the same time that the door 1 is opened. When the opening confirmation means L2 is turned on by the opened car door 10 (140), the motor 11 is stopped (190), and the state returns to the polling state.
[0031]
(1-2) When the door 1 is completely closed from the open state In this case, since the door 1 is closed from the open state, the open detection means Q1 is turned on from the off state, and it is detected that the door is turned on. Then (120), it is confirmed that the closing confirmation means L1 is turned off and the opening confirmation means L2 is turned on (130, 160) that the car door 10 is open, and the motor 11 is reversed (170) to close the car door 10. . Then, the closing confirmation means L1 is turned on by the closed basket door 10, and when it is confirmed that it is closed (180), the motor 11 is stopped (190) and the state returns to the polling state (120).
[0032]
(1-3) When the door 1 is opened from the closed state and then closed again In this case, since the door 1 is opened from the closed state, the open detection means Q1 is immediately turned off (120). When the closing confirmation means L1 is turned on and the opening confirmation means L2 is confirmed from the off state (130, 140) that the car door 10 is closed, the motor 11 is operated (150) to open the car door 10. Then, when the opening confirmation means L2 is turned on by the opened basket door 10 (140), the motor 11 is stopped (190) and the state returns to the polling state (120). Next, when the door 1 that has been opened is closed, the opening detection means Q1 is off (120), and it is confirmed that the basket door 10 is open from the closing confirmation means L1 and the opening confirmation means L2 from on. (130, 160), the motor 11 is reversed (170), and the car door 10 is closed. At this time, when it is confirmed that the closing confirmation means L1 is turned on and closed by the closed basket door 10 (180), the motor 11 is stopped (190) and the state returns to the polling state (120).
[0033]
(1-4) When the door 1 is closed from the open state and then opened again. In this case, the door 1 is closed from the open state, contrary to the case of the above (3). When the means Q1 is off (120), and the closing confirmation means L1 confirms that the basket door 10 is open and the opening confirmation means L2 is confirmed from on (130, 160), the motor 11 is reversed (170). The basket door 10 is closed and the polling state is restored (120). Therefore, once the closed door 1 is opened, the open detection means Q1 is turned off from on (120). Accordingly, when the closing confirmation means L1 is turned on and the opening confirmation means L2 is confirmed from the off state (130, 140) that the cage door 10 is closed, the motor 11 is operated (150) to open the basket door 10. After that, when the opening confirmation means L2 is turned on by the opened basket door 10 (140), the motor 11 is stopped (190) and returned to the polling state (120).
[0034]
(1-5) When the door 1 is opened from the closed state and then stopped in the middle In this case, the door 1 is opened from the closed state as in the case of (1). When Q1 is turned off from on (120), the closing confirmation means L1 is turned on and the opening confirmation means L2 is confirmed from the off state (130, 140) that the car door 10 is closed (130, 140). The basket door 10 is opened. Then, when the opening confirmation means L1 is turned on, the motor 11 is stopped (190) and the state returns to the polling state (120). As a result, the basket door 10 is opened.
[0035]
(1-6) When the door 1 is closed from the open state and stopped in the middle In this case, as in the case of (2), since the open detection means Q1 is turned on from off, the cage door 10 is opened. When the closing confirmation means L1 is confirmed to be off and the opening confirmation means L2 is confirmed to be on (130, 160), the motor 11 is reversed (170) and the cage door 10 is closed. Then, when the door 1 is opened again to the intermediate position, the opening detecting means Q1 is turned off from on, and the car door 10 is closed by confirming that the opening confirmation means L2 is turned off (130, 140). ), The motor 11 is operated (150), and the car door 10 is opened. After that, when the opening confirmation means L1 is turned on, the motor 11 is stopped (190) and returned to the polling state (120). As a result, the basket door 10 is opened.
[0036]
In this way, the basket door 10 can be opened and closed in conjunction with the opening and closing of the entrance door 1. Further, since the basket door 10 is closed when the entrance door 1 is closed, it is safe even when the basket door 10 is slowly closed.
[0037]
Next, as a second embodiment, a dam waiter according to the first embodiment is provided with closing detection means Q2 for detecting that the entrance door 1 is in the open position.
[0038]
As shown in FIG. 5, the closing detection means Q2 is composed of a magnet M provided in the entrance door 1 and a proximity switch q2 provided in the frame. As shown in FIGS. The switch q2 is provided at a position where it operates to face the magnet M when the upper door 1a of the door 1 is in an open state.
[0039]
The proximity switch q2 is connected to the control circuit 13 as shown in FIG.
[0040]
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
[0041]
This embodiment is configured as described above. Next, the operation will be described along the opening and closing operations (1) to (6) as in the first embodiment, based on the flowchart of FIG.
[0042]
(2-1) When the door 1 is completely opened from the closed state In this case, when the door 1 is opened from the closed state, the proximity sensor q1 (hereinafter, Q1) of the open detection means Q1 is immediately turned off. At this time, if the proximity sensor q2 (hereinafter referred to as Q2) of the close detection means Q2 is simultaneously detected and turned off (110, 120), the limit switch l2 that is the open confirmation means L2 and the limit switch l1 that is the close confirmation means L1. When the limit switch l1 (hereinafter referred to as L1) of the closing confirmation means L1 is turned on and the limit switch l2 (hereinafter referred to as L2) of the opening confirmation means L2 is confirmed from being turned off. (130, 140), the motor 11 is operated (forward rotation here) (150), and the car door 10 is opened. Therefore, the basket door 10 can start opening simultaneously with opening the door 1. When the opening confirmation means L2 is turned on by the opened car door 10 (140), the motor 11 is stopped (190), and the state returns to the polling state.
[0043]
(2-2) When the door 1 is completely closed from the open state In this case, since the door 1 is closed from the open state, the open detection means Q1 is turned on from off, and the close detection means Q2 is turned off from on ( 110, 120). At this time, if the closing confirmation means L1 is confirmed to be off and the opening confirmation means L2 is confirmed from being on (130, 160) that the cage door 10 is open, the motor 11 is reversed (170) and the cage door 10 is closed. Then, the closing confirmation means L1 is turned on by the closed basket door 10, and when it is confirmed that it is closed (180), the motor 11 is stopped (190) and returned to the polling state (110, 120).
[0044]
(2-3) When the door 1 is opened from the closed state and then closed again In this case, since the door 1 is opened from the closed state, the closing detection means Q2 is turned off and the opening detection means Q1 is Since it turns from off to on (110, 120), when the closing confirmation means L1 is confirmed to be on and the opening confirmation means L2 is confirmed to be off (130, 140), the motor 11 is operated ( 150) The basket door 10 is opened. Then, when the opening confirmation means L2 is turned on by the opened car door 10 (140), the motor 11 is stopped (190) and the state returns to the polling state (110, 120). Therefore, once the door 1 that has been opened is closed, the closing detection means Q2 is turned off from on, the opening detection means Q1 is turned off (110, 120), and the closing confirmation means L1 is turned off to confirm that the basket door 10 is open. When the opening confirmation means L2 is confirmed to be on (130, 160), the motor 11 is reversed (170) and the cage door 10 is closed. At this time, when it is confirmed that the closing confirmation means L1 is turned on and closed by the closed basket door 10 (180), the motor 11 is stopped (190) and the state returns to the polling state (110, 120).
[0045]
(2-4) When the door 1 is closed from the open state and then opened again In this case, the door 1 is first closed from the open state, contrary to the case of (2-3) above. Therefore, since the closing detection means Q2 is turned off from on and the opening detection means Q1 is turned on from off (110, 120), the closing confirmation means L1 is turned off and the opening confirmation means L2 is turned off when the car door 10 is open. If it confirms with ON (130, 160), it reverses the motor 11 (170), closes the basket door 10, and returns to a polling state (110, 120). Therefore, next, when the closed door 1 is opened, the opening detection means Q1 is turned off from on and the closing detection means Q2 is turned on from off (110, 120), so that the cage door 10 is closed. When the closing confirmation means L1 is confirmed to be on and the confirmation means L2 is confirmed to be off (130, 140), the motor 11 is operated (150) to open the basket door 10. After that, when the opening confirmation means L2 is turned on by the opened basket door 10 (140), the motor 11 is stopped (190) and returned to the polling state (110, 120).
[0046]
(2-5) When the door 1 is opened from the closed state and then stopped in the middle In this case, the door 1 is opened from the closed state as in the case of (2-1). The detection means Q2 is turned on from off, and the open detection means Q1 is turned on from off (110, 120). When the closing confirmation means L1 is turned on and the opening confirmation means L2 is turned off, it is confirmed that the car door 10 is closed (130). 140), the motor 11 is operated (150), and the basket door 10 is opened. Then, when the opening confirmation means L1 is turned on, the motor 11 is stopped (190) and the polling state is returned (110, 120). As a result, the basket door 10 is opened.
[0047]
(2-6) When the door 1 is closed from the open state and stopped in the middle In this case, as in the case of (2-2), the door 1 is closed from the open state, thereby closing detection means Q2. Is turned from on to off, and the open detection means Q1 is turned from off to on. When the closing confirmation means L1 is confirmed to be off and the opening confirmation means L2 is confirmed to be on (130, 160), the motor 11 is reversed. (170) The car door 10 is closed. Then, when the closing confirmation means L1 is turned on by the closed basket door 10 and it is confirmed that it is closed (180), the motor 11 is stopped (190) and returned to the polling state (110, 120). Close.
[0048]
In the case where the closing detection means Q2 is provided in this manner, when the opened door 1 is closed, the basket door can be started in conjunction with the opening, so that the driving efficiency can be increased.
[0049]
As described above, the present invention can open and close the cage door 10 in response to each of the opening and closing operations roughly classified into six ways of the entrance door 1 without using a mechanical mechanism.
[0050]
As a result, it is possible to save time and effort for opening and closing the basket door 10, so that the basket door 10 can be provided as standard equipment. Therefore, it is possible to prevent a failure due to the catch of the article being transferred.
[0051]
In addition, by eliminating the need for a mechanical interlocking mechanism with the entrance door 1, the dam waiter can be installed with the same installation accuracy as before, and a running clearance of about 10 mm can be accommodated.
[0052]
Furthermore, since most parts can be handled by conventional products, they can be installed on existing sites. In addition, since the car door 10 is an automatic door alone, a small-capacity drive motor may be used.
[0053]
In addition, even when a person gets into the car 2 by mischief, the door 1 cannot be opened or closed even if the car door 10 is closed (because it is not linked), so that an accident can be prevented.
[0054]
In this embodiment, the proximity sensor is used as the open / close detection means, but the present invention is not limited to this.
[0055]
Similarly, the limit switch is used for the opening / closing confirmation means, but the present invention is not limited to this, and any sensor can be used as long as it can detect the opening / closing of the entrance door and the car door. It is.
[0056]
【The invention's effect】
Since the present invention is configured as described above, the basket door can be easily opened and closed by the same operation as the conventional method of use. Therefore, the basket door can be provided as a standard equipment, so that it is possible to prevent a failure due to an object being caught.
[Brief description of the drawings]
1 is a perspective view of a first embodiment. FIG. 2 is a longitudinal sectional view of the first embodiment. FIG. 3 is a block diagram of the first embodiment. FIG. 4 is a flowchart of the first embodiment. FIG. 6 is a perspective view of the second embodiment. FIG. 7 is a block diagram of the second embodiment. FIG. 8 is a flowchart of the second embodiment. Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Entrance door 2 Lifting cage 1a 'Upper door 1b' Lower door 10 Basket door 11 Drive motor L1 Close confirmation means L2 Open confirmation means Q1 Open detection means Q2 Close detection means 13 Control circuit

Claims (3)

The opening and closing operation, Aya (10a) and Orito (10b to slide up and down between Ueto (1a) and Orito unloading opening doors Damuweta consisting (1b) (1) and Damuweta lift cage (2) to slide up and down ) car door (10) is provided consisting of closed provided with a closing mechanism for sliding the car door (10) up and down by a motor (11) driving, in which the car door (10) detects that it is in the closed position Confirmation means (L1) , open confirmation means (L2) for detecting that the basket door (10) is in the open position, and open detection means (Q1 ) for detecting that the doorway door (1) is in the closed position ) comprising a, when the loading and unloading opening door by an opening detection means (Q1) (1) detects the absence in the closed position, the loading and unloading opening door (1) is detected to be in an open position, the motor (1 ) Was driven to open by the opening and closing mechanism to the car door (10) is detected by the open confirmation means (L2), whereas, said the loading and unloading opening door by an opening detection means (Q1) (1) is in a closed position If it is detected that the doorway (1) is not in the open position, the motor (11) is driven and closed by the opening / closing mechanism until the car door (10) is detected by the closing confirmation means (L1). Dam waiter characterized by. Close detection means (Q2) for detecting that the entrance door (1) is in the open position,
The opening detection means (Q1) detects that the entrance / exit door (1) is not in the closed position, and at the same time, the close detection means (Q2) detects that the entrance / exit door (1) is not in the open position. When it is detected that (1) is opened, it is opened by the opening / closing mechanism until the opening confirmation means (L2) detects that the car door (10) is in the open position by driving the motor (11). The dam waiter according to claim 1, wherein The closing detection means (Q2) and the opening detection means (Q1) are connected to the opening / closing door (1) side by the magnet (M) and the opening / closing door (1) to which the magnet (M) is attached, respectively. The dam waiter according to claim 2, wherein the dam waiter is constituted by a magnetic detection means facing each other.

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