JPS61114991A - Safety device for man conveyor - 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 safety device for a passenger conveyor.

[Background of the invention]

Conventionally, in order to prevent the risk of clothes, shoe tips, etc. getting caught in the gap between the step and frame body (skirt guard) of a passenger conveyor, both the left and right ends of the step were made of polymeric material to reduce the risk of injury, and yellow They painted it with paint and warned people not to ride on its sides. (Jitsuganesho s 7-56
913) However, when passengers were crowded, children and others did not notice the yellow warning signs, and there was a lack of consideration for safety.

[Purpose of the invention]

The object of the present invention is to provide a safety device that issues an alarm when a passenger rides on a caution sign to prevent danger, and that stops the passenger conveyor if the passenger gets caught between the step and the skirt guard. The information provided.

[Summary of the invention]

The main point of the present invention is to use a king skein, conductive rubber, etc. as a load detector, and detect an abnormality in the way the person is riding on the steps on the movable side using an optical sensor or the like to detect the abnormality in the control device provided on the fixed side. This is an electrical safety device that instructs the operator and stops the conveyor in the event of an abnormality.

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below regarding an escalator that is an example of a passenger conveyor.

Figure 1 shows the overall structure of the side of an escalator. 1.2 is a chain wheel provided at the top and bottom, and an endless chain 3, one on each left and right, is wound around this. 4 are installed continuously at a constant pitch. The upper chain wheel 2 has a drive unit 5 (7)/J chain 1°! =Of
'1Jll[Ufl''-''''Wrap around.

By transmitting the power of this drive machine 5, the υ chain wheel 1
, 2, step 4 is continuously automated. Reference numeral 8 denotes movable handrails, which are provided on both sides of the balustrade 9, and are driven by the power of the upper chain wheel 2 in synchronization with step 4 via a handrail drive device (not shown). The device 10 for controlling the drive machine 50 is arranged near the drive machine 50.

Next, FIG. 2 is a perspective view of the step, and the step 4 is composed of a frame 11, a roller 12, and a cleat 20.
A light emitting lamp 15 is provided in front of and on the side of the step. Further, a vertical load detector 16 and a lateral load detector 17 are provided at the left and right ends of the step, and a light emitting element 18 is arranged on the frame 11. In addition, a power supply unit (with built-in storage battery) 13 and an audio device (including an e-information device) 14 are installed in several of the many steps 4, and a cable (not shown) is installed between the endless steps 4. Cross over and connect electrical parts.

FIG. 3 is a sectional view taken along the line ■--■ in FIG. 2. Step 4
The left and right slugs 21 are made slightly higher than the cleat 20 in the center (where a person rides) and are attached with screws 22. A vertical load detector 16 and a lateral load detector 17 are installed between the cleats 20 and 21 on the left and right sides of step 4 (
It is located on the left side (not shown). Also, the light receiving element 19 facing the light emitting element 18 is installed on the skirt guard 23 on the fixed side. The number of light receiving elements 19 is calculated based on the braking distance of the escalator, etc., and a plurality of light receiving elements 19 are arranged.

Figures 4 and 5 are block diagrams of electrical circuits, and are dangerous areas for passengers! When the user steps on the J-) 21, the vertical load detector 16 is activated, and the power source 13 and audio device 14 alert the user to danger. Example: Please ride in the center, etc.

Furthermore, it is possible to issue an alarm or turn on the light emitting lamp 15 to give a warning. In Figure 5, in the unlikely event that cleat 2
When shoes 9 parts, objects, etc. are caught in the gap between 1 and the skirt guard 23, the lateral load detector 17 operates due to the horizontal load, and the light emitting element 18 operates due to the power supply section 13, and receives light. When facing the element 19, the light beam from the light emitting element 18 is focused, and the received light signal is sent to the output circuit 25 via the amplifier 24.
is converted into a switching output and inputted to the control device 10. The control device 10 stops the escalator, thereby making the escalator non-hazardous.

In this embodiment, control is performed using the light emitting element 18 and the light receiving element 19 on the fixed side as a signal when the cleat 21 and the skirt guard 23 are sandwiched. The same effect can be obtained by using a magnetic sensor or the like on the fixed side.

〔Effect of the invention〕

According to the present invention, since it can be an electrical safety device, guidance and safety for passengers can be further improved.

[Brief explanation of drawings]

Fig. 1 is a side view of the escalator, Fig. 2 is a perspective view of the steps, Fig. 3 is a sectional view taken along the arrow Ill-1 in Fig. 2, Fig. 4 is a block diagram of the electric circuit related to the alarm device, Fig. 5 is a block diagram of an electrical circuit related to a hazardous situation. 4...° step, 13... Power supply unit, 14... Audio device, 15... Light emitting lamp, 16... Vertical load detector, 17... Lateral load detector, 18... - Light emitting element, 19... Light receiving element, 21... Cleat.

Claims (1)

[Claims] 1. At least one of a longitudinal load detector or a lateral load detector is installed at a portion of the left and right ends of the step which is arranged in an endless manner and rotates between the entrances and exits. A safety device for passenger conveyors that is characterized by: 2. The safety device for a passenger conveyor according to claim 1, characterized in that indicator lights are provided at a portion of the front and sides of the step. 3. The safety of the passenger conveyor according to claim 1, characterized in that light emitting parts are provided on several sides of the plurality of rotating steps, while light receiving parts are arranged on the fixed side. Device. 4. The safety device for a passenger conveyor according to claim 1, characterized in that a storage battery, an audio device, and an alarm device are provided on a portion of the back side of the endless step. 5. The safety device for a passenger conveyor according to claim 1, wherein the load detector is a pressure sensor. 6. The safety device for a passenger conveyor according to claim 2, characterized in that the electric circuit is configured such that the indicator light is turned on by the operation of the vertical load detector. 7. The safety device for a passenger conveyor according to claim 1, characterized in that an alarm is issued by an audio device, a buzzer, or a bell based on the operation of the vertical load detector. 8. In claim 3, when the lateral load detector operates, the light emitting section lights up, the light receiving section on the fixed side lights up, and when the light receiving section on the fixed side senses it, the passenger conveyor is turned on. A safety device for a passenger conveyor, characterized by an electric circuit that stops the conveyor. 9. The safety device for a passenger conveyor according to claim 1, wherein the load detector is made of conductive rubber. 10. The safety device for a passenger conveyor according to claim 1, characterized in that the step has a built-in solar cell, and the step is made to emit light independently by the operation of the longitudinal load detector.