JPS59198280A - Controller for escalator with automatic intrusion preventiveshelf - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a control device for an escalator equipped with a self-intrusion prevention shelf, and particularly relates to a control device suitable for preventing danger to passengers.
It is related to the device.

[Background of the invention]

Escalators installed on some outdoor public roads and escalators installed as a means of communication with subways are often used as stairs when escalators are not in operation at night, and equipment may be damaged due to tampering or foreign objects getting into the equipment. This often leads to malfunctions.

For this reason, in order to prevent the escalator from being used as a staircase when the escalator is out of operation, it has been considered to provide a barrier to prevent entry to the escalator. However, as shown in FIGS. 1 and 2, there are upper automatic entry prevention fences such as an upper entry prevention device 2 and an upper entry prevention gate 3 on the upper and lower sides of the escalator 1, respectively.
When a lower entry prevention device 4, a lower entry prevention gate 5, and a longer-lasting lower self-intrusion prevention shelf are provided, the escalator may be operated even though the automatic entry prevention shelf is closed. This may lead to danger to passengers.

[Purpose of the invention]

The present invention has been made in view of the above, and its purpose is to prevent danger to passengers by linking escalator operation with the opening and closing of upper and lower automatic entry prevention fences. An object of the present invention is to provide a control device for an escalator equipped with a prevention fence.

[Summary of the invention]

The present invention is characterized by two gate closing detection means for respectively detecting the closing of the entry prevention gate of each automatic entry prevention fence;
When the gate closing detection means on the opposite side of the escalator's operating direction detects the closing of the corresponding intrusion prevention gate, and the gate closing detection means in the operating direction does not detect the closing of the corresponding intrusion prevention gate. , means for stopping the escalator after a predetermined time, and when the gate closing detection means in the driving direction detects the closing of the corresponding entry prevention gate, the gate closing detection means on the opposite side to the driving direction detects the closing of the corresponding entry prevention gate. The escalator is configured to immediately stop the escalator even if the closing of the entry prevention gate is not detected.

[Embodiments of the invention]

The present invention will be explained in detail below using embodiments shown in FIGS. 3 to 8.

FIG. 3 is an explanatory diagram showing an example of the arrangement of the gate closing detection switch required in the control device of the US invention.
) is the lower gate closed detection switch LGS.

FIG. 3(b) shows the arrangement of the upper gate closing detection switch UGS, which corresponds to the lower automatic entry prevention gate 5 of the lower automatic entry prevention fence or the upper automatic entry prevention gate 3 of the upper automatic entry prevention fence, respectively. The system is being configured to detect when the door closes and close the circuit.

4 and 5 are circuit diagrams showing an embodiment of the escalator-operation stop command circuit of the control device of the present invention, and FIG. 6 is a circuit diagram showing an embodiment of the escalator-main motive driving circuit. 7 and 8 are circuit diagrams showing an embodiment of the operating circuit for the upper and lower gate operating motors, respectively.

In Figures 4 and 5, Sl is an escalator stop switch, S2 is an escalator safety switch, U is an escalator upward operation switch, and D- is an escalator-safety switch.
11 is a descending operation switch, and 11 is a relay for ascending operation command.
111 r 113.114°115 is the always open pain point,
112 is its normally closed contact, 12 is the descending operation command relay, 121.123 + 124 + 12 s is its normally closed contact, 122 is its normally closed contact, TSL, TS2 is the escalator test operation switch, T is the delay timer So, T
1 is the normally closed contact, UO is the relay for commanding the upper gate to open, UOI is the normally open contact, UO2 and UO3 are the normally closed contacts, UC is the relay for commanding the upper gate to close, and UCl is the normally open contact. , UC2, UC3 are the normally closed contacts, LO is the relay for commanding the lower gate to open, LO1 is the normally open contact, LC2, LOs are the normally closed contacts, LC is the relay for commanding the lower gate to close. , LC, is its normally open contact, LC2
, LC3 is the normally closed contact, UO8 is the switch for commanding the opening of the first gate, LC8 is the switch for commanding the closing of the upper gate, LC8 is the switch for commanding the opening of the lower gate, LC8 is the switch for commanding the closing of the lower gate, UOLS is the upper gate opening completion detection switch, UCLS is the upper gate closing completion detection switch, LOLS is the lower gate opening completion detection switch, LCLS is the lower gate closing completion detection switch, UG
S is the upper gate closing detection switch, LGS is the lower gate closing detection switch, GU is the upper gate closing detection relay, and GUt.

GU3 and GU4 are their normally closed contacts, GU2 and GUs are their normally open contacts, and GL is the lower gate closed detection relay.
l, GL2, GL4 are normally closed contacts, GLa, GL
s is its normally open contact, P and N are operating power supplies, and these are connected as shown.

In Fig. 6, 116 and 117 are the normally open contacts of the relay 11 for ascending operation command shown in Fig. 4, 126° and 127 are the normally open contacts of the relay 12 for descending operation command shown in Fig. 4, and M is the main contact for the escalator. Electric M, R1.

Sl and Tt are power sources, and these are connected as shown.

In Figures 7 and 8, UO4 and UOs are the normally open contacts of the upper gate opening command relay UO in Figure 4, and UO3
, UOs is the normally open contact of the upper gate closing command relay UC in Figure 4, UDM is the electric motor for operating the upper gate, LO4,
LOs is the normally open contact of the lower gate opening command relay LO in Fig. 4, LC4.

LC5 is the normally open contact of the lower gate closing command relay LC in Figure 4, LDM is the lower gate operating motor, R213+
8213 + T213 is a power source, and these are connected as shown.

Now, assuming that the escalator is stopped and both the upper and lower automatic entry prevention fences are closed, the upper gate closing detection switch UG8 is closed because the upper entry prevention gate 3 is closed. ), in Fig. 5, the upper gate closing detection relay GU is turned on, and its contact GU2
, GUs closes, and its contacts GUI , GUa , G
D3 opens.

In addition, since the lower entry prevention gate 5 is also closed, the lower gate closed door detection switch LG8 is closed (see Figure 3).
In FIG. 5, lower gate closing detection relay GL is turned on, and its contacts GL3. GLs is closed and its contact ()L
t, OL2, and OL4 are opened. In this state,
P-82SI U-
122-11GIJs GLl-N circuit contact GU
Since 1°GLr is open, the upward operation command relay 11 is not turned on, and the escalator cannot be operated upward.

Next, assuming that the upper entry prevention fence is closed and the lower entry prevention fence is open in the case of upward operation, in Fig. 5, the upper gate closing detection switch UGS is closed. Since the relay GU that detects the closing of the H side gate is turned on, its contact GUI is opened, and P 82 81
The circuit of 11 122 11 GUr GLIN is not formed, and in this case as well, the escalator cannot be operated upward, and the safety of passengers can be ensured.

Contrary to the above, if the upper entry prevention fence is open and the lower entry prevention fence is closed during upward operation, then in Fig. 5, the lower gate closing detection switch LG
When S is closed, the lower gate closing detection relay GL is turned on, so its contact GL1 is opened, and P-82-8s,
-U-122-11-() Ut GLIN The circuit is not formed, and in this case as well, the escalator cannot be operated upward.

Next, if both the upper and lower entry prevention fences are open, the upper and lower gate closing detection relay GU is activated.

Since OL is turned off, its contact G U1+' G L
l is closed, P S2 Ss U 122
A circuit of 1l-GUI GLIN is formed, and the escalator can be operated upward. At the same time, contact 11g + 114 + is turned on by relay 110 for raising operation command.
By closing 111 and closing contact G L 2, the lifter can continue upward operation.

Next, the operation when stopping the escalator will be explained. IA''!,, if the upper entry prevention fence closes while the escalator is in ascending mode, the GUI GLl
Since contact Gu of the -N circuit is opened, the above circuit cannot be formed, and the escalator immediately stops operating. Therefore, passengers on the escalator will not come to a dead end at the upper entry prevention fence.

Additionally, if the lower entry prevention fence is closed and the upper entry prevention fence is open while the escalator is in ascending operation,
P 82 S+ -Tl 113-11 GU
A circuit of l 111 N is formed, and at the same time P
After the set time limit of the delay timer T has elapsed in the circuit of OL5 GD3 115 TN, the delay timer T is turned on. When the delay timer T turns on, its contact T1 opens and P 82 Ss Tt-11311-GUt
-111N circuit is no longer formed, escalator -
will stop after a certain period of time has elapsed after the lower entry prevention fence closes the door. Therefore, even if the lower entry prevention fence closes, the passengers on the escalator can continue to ascend, and the escalator stops when there are no more passengers.

Note that although the above description is for the case of upward operation, the same applies to the case of downward operation, so the explanation will be omitted here. still,
Escalator - stop switch s1 or escalator -
Escalator in operation due to opening of safety switch s2
It goes without saying that the emergency stop of a car can proceed in the past, and that it can be stopped in any case. Of course, it is also possible to independently operate and stop the escalator regardless of the operation of the upper and lower intrusion prevention shelves.

According to the embodiment of the present invention described above, the upper gate closing detection switch UGs and the lower gate closing detection switch LGS are provided to detect the closing of the upper and lower automatic entry prevention fences, and the upper and lower automatic entry prevention fences are provided. Since the operation of the escalator is linked to the opening and closing of the entry prevention gate on the shelf, danger to passengers can be prevented.

[Effects of the Invention] As explained above, according to the invention, the operation of the escalator can be linked to the opening and closing of the upper and lower automatic entry prevention fences, so it is possible to prevent danger to passengers. There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an escalator equipped with an automatic entry prevention fence, Fig. 2 is a side view of Fig. 1, and Fig. 3 is an implementation of the arrangement of the gate closing detection switch required by the control device of the present invention. FIG. 4 is an explanatory diagram showing an example. Fig. 5 is a circuit diagram showing an embodiment of the escalator operation stop circuit of the escalator control device equipped with the automatic entry prevention fence of the present invention, and Fig. 6 is an embodiment of the escalator - main electric machine operation circuit. The circuit diagrams shown in FIGS. 7 and 8 are circuit diagrams showing an example of the operating circuit of the upper and lower gate operating motors, respectively. 1...Escalator-12...Upper side entry prevention device,
3...Upper side entry prevention gate, 4...Lower side entry prevention device, 5...Lower side entry prevention gate, UGs...Upper side gate closing detection switch, LGs...Lower side gate closing detection switch, U... Ascending operation switch, D... Descending operation switch, 11... Relay for ascending operation command, 12
...relay for descending operation command, T...delay timer,
Uo... Relay for upper gate opening command, Uc... Relay for upper gate closing command, Lo... Relay for lower gate opening command, LC... Relay for lower gate closing command, Uo8. ...-Upper gate close command switch, Uc
s... Upper gate close command switch, Los...
Switch for lower gate opening command, Lcs...Switch for lower gate closing command, GU...Upper gate closing detection relay, GL...Lower gate closing detection relay, IM.
...Escalator main motor, UDM...Electric motor for operating the upper gate, LDM...Electric motor for operating the lower gate.

Claims (1)

[Claims] 1. In a control device for an escalator equipped with upper and lower automatic entry prevention fences, two gate closing detection means each detect the closing of the entry prevention gates of each of the automatic entry prevention fences, and the driving direction of the escalator. When the gate closing detection means on the opposite side detects the closing of the corresponding entry prevention gate, and the gate closing detection means in the driving direction does not detect the closing of the corresponding entry prevention gate,
When the means for stopping the escalator after a predetermined period of time and the gate closing detection means in the previous driving direction detect the closing of the corresponding entry prevention gate, the gate closing detection means on the opposite side to the driving direction detects the closing of the corresponding entry prevention gate. 1. A control device for an escalator equipped with an automatic entry prevention fence, comprising means for immediately stopping the escalator even if the closing of a corresponding entry prevention gate is not detected.