JP3018648U - Elevator door safety equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] The object of the present invention is to detect the finger stuffing directly with a simple mechanism to prevent the finger stuffing accident reliably and easily, and to detect the finger stuffing on the floor where the car is not stopped. An object of the present invention is to provide a safety device for an elevator door which does not cause any trouble even if it is tampered with. According to the present invention, the cage side tape switches 4 and 5 and the hall side tape switches 14 and 15 perform finger-stuffing detection of the elevator doors, and the hall-side finger-stuffing detection signal is sent to the projector 16.
It is configured to transmit to the light receiver 6. [Effect] The finger jamming accident can be reliably and easily prevented, and even if the finger jamming detection device is operated by mischief on the floor where the car is not stopped, the elevator door does not operate unnecessarily and there is no problem.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety device for an elevator door.

[0002]

[Prior art]

 In the conventional elevator door control device, the upper limit value of torque is set in advance, and it is detected that the torque command value has reached the upper limit value of torque and that the opening / closing speed of the door has fallen below the specified value. Due to this, the finger was stopped and the door was stopped and turned over.

In this method, it is necessary to adjust the upper limit value of the torque at each site, and the variation in the weight of the door for each floor, the change in the drive torque due to the secular change of the drive mechanism, and the blowing to the door Due to the influence of wind pressure, it was very difficult to detect finger stuffing stably.

Further, since the child's fingers are small and soft, it is difficult to detect them with high accuracy and without malfunction.

Japanese Patent Laid-Open No. 57-48587 discloses a mechanism in which a pressure detecting device is installed on a door, and a finger jam detection is performed by synchronizing the operation of the pressure detecting device and the elevator. It was complicated.

[0006]

[Problems to be solved by the device]

 The purpose of the present invention is to detect finger jamming directly with a simple mechanism to prevent finger jamming reliably and easily, and there is no problem even if the finger jamming detection device on the floor where the car is not stopped is tampered with. , To provide a safety device for elevator doors.

[0007]

[Means for Solving the Problems]

 An object of the present invention is to provide an elevator door safety device for stopping or reversing an elevator door when a finger jam between door panels or between a door panel and a door pocket is detected. A finger-stuffing detection device is provided at the end of the car side door bag, the end of the door panel between each landing side door panel, and the end of the door panel between each car side door panel. Is provided at each hall, and among the finger-stuffing detection signals at each hall, the car is provided with a receiving means for receiving the finger-stuffing detection signal at the hall on the floor where the car is stopped.

Further, the finger stuffing detection device may be a tape switch, the transmission means may be a light projector, and the reception means may be a light receiver.

[0009]

[Action]

 According to the configuration of the present invention, since the finger-stuffing detection device is provided at each end of the elevator door, the finger-stuffing detection can be directly performed with a simple mechanism.

In addition, since each hall is provided with a means for transmitting a finger-stuffing detection signal on the hall side and a car with a means for receiving a finger-stuffing detection signal on the hall side, the cage is stopped among the finger-stuffing detection signals at each hall. It is possible to send and receive only the finger stuffing detection signal of the landing on the floor.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a single-sided elevator door incorporating a safety device according to an embodiment of the present invention. In FIG. 1, 1 is a car-side first door panel, 2 is a car-side slow-door panel, 3 is a car-side door bag, and 4 and 5 are car-side tape switches for detecting finger jamming of car-side elevator doors. , 6 is a light receiver provided in the car to receive the finger-stuffing detection signal of the floor of the hall where the car is stopped among the finger-stuffing detection signals of each hall, 11 is the landing side first door panel, 12 Is a hall-side slot door panel, 13 is a hall-side door bag, 14 and 15 are hall-side tape switches for detecting finger-stuffing of the hall-side elevator doors, and 16 is a car side which is a hall-side finger-stuffing detection signal. Shows the floodlights installed at each landing for transmission to.

FIG. 2 is a block diagram of a safety device for an elevator door according to an embodiment of the present invention. In FIG. 2, the same reference numerals as those in FIG. 1 denote the same parts, 50 is a detection control device configured by an OR gate, 60 is an elevator door control device for controlling the elevator door, and 70 is a projector. 16 shows a power supply device for supplying electric power to 16.

Next, the operation of the embodiment of the present invention will be described. When the hall-side tape switches 14 and 15 detect the finger-filling of the hall-side elevator doors, the projector 16 transmits a hall-side finger-filling detection signal to the light receiver 6. Here, the projector 16 and the light receiver 6 are arranged so as to be able to transmit and receive only the finger-stuffing detection signal of the landing on the floor where the car is stopped among the finger-stuffing detection signals of each landing. The light receiver 6 inputs a finger-stuffing detection signal on the hall side to the detection control device 50.

When the car side tape switches 4 and 5 detect the finger jamming of the car side elevator door, the car side tape switches 4 and 5 input the car side finger jamming detection signal to the detection control device 50. .

The detection control device 50 outputs a signal to the elevator door control device 60 when a finger-stuffing detection signal on the hall side or the car side is input. The elevator door controller 60 stops the elevator door and reverses it at slow speed.

As described above, according to the present embodiment, even if finger jamming occurs at the elevator doors on the landing side or the car side, the finger jamming detection is directly performed by a simple mechanism, and the finger jamming detection signal of each landing is detected. It is possible to send and receive only the finger-stuffing detection signal of the landing on the floor where the car is stopped to stop and reverse the elevator door.

[0017]

[Effect of device]

 As described above, according to the present invention, since finger stuffing can be detected directly by a simple mechanism, it is possible to stop and invert the elevator door and reliably and easily prevent finger stuffing accidents.

Since only the finger-stuffing detection signal of the floor of the floor where the car is stopped among the finger-stuffing detection signals of each hall can be transmitted and received, the finger-stuffing detection device installed in the hall on the floor where the car is not stopped can be installed. Even if it is operated by mischief, the elevator door does not operate unnecessarily and there is no problem.

Further, the signal of the finger stuffing detection is not transmitted to the elevator door control device installed in the car via the control panel of the elevator machine room, but is directly transmitted to the elevator door control device. Since it is transmitted, the response speed is fast and it is possible to prevent finger jam accidents.

[Brief description of drawings]

FIG. 1 is a plan view of a single-opening elevator door incorporating a safety device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a safety device for an elevator door according to an embodiment of the present invention.

[Explanation of symbols]

 1 car side first door panel 2 car side slow door panel 3 car side door bag 4, 5 car side tape switch 6 light receiver 11 landing side first door panel 12 landing side slow door panel 13 landing side door bag 14, 15 landing side Tape switch 16 Emitter

Claims (3)

[Scope of utility model registration request] 1. An elevator door safety device for stopping or reversing an elevator door upon detection of finger jamming between door panels or between a door panel and a door pocket. A finger stuffing detection device is installed at the end, the door panel end between each hall side door panel, and the door panel end between each car side door panel, and a transmission means for transmitting the hall side finger stuffing detection signal to the car side is provided at each hall. A safety device for an elevator door, wherein the car is provided with a receiving means for receiving a finger-stuffing detection signal of a landing on a floor where the car is stopped among the finger-stuffing detection signals of each landing. 2. The safety device for an elevator door according to claim 1, wherein the finger-stuffing detecting device is a tape switch. 3. The safety device for an elevator door according to claim 1, wherein the transmitting means is a light projector and the receiving means is a light receiver.