JP2006248695A - Elevator doorway safety device - Google Patents

Abstract

The present invention provides an elevator entrance / exit safety device that can be modified so that passengers' hands are not caught between landing doors and car doors with a short working time and low remodeling costs.
An elevator detecting device for detecting an obstacle interposed between the car doors 6 and 6A, which is an elevator entrance that opens and closes the landing doors 4 and 4A when the car doors 6 and 6A are opened and closed. In the elevator entrance / exit safety device provided on the side of the car doors 6 and 6A, the obstacle detection device 7 includes the landing doors 4 and 4A and the car doors 6 and 6A together with the closing operation of the landing door and the car door. At least a working body 7A that protrudes from the front ends of the car doors 6 and 6A, and when an obstacle is detected by the working body 7A, a landing door is provided. 4 and 4A and the car doors 6 and 6A can be achieved by outputting a door opening signal for moving the doors 6 and 6A in the opening direction.
[Selection] Figure 2

Description

  The present invention relates to a safety device for an elevator doorway in which a pair of car doors is positioned opposite to a pair of hall doors, and the pair of hall doors are opened and closed in accordance with the opening and closing operation of the pair of car doors. It is about.

  As this type of prior art, as shown in FIG. 4, a pair of car doors 21, 21 </ b> A are located opposite to the pair of landing doors 20, 20 </ b> A, and the pair of car doors 21, 21 </ b> A are opened and closed. Obstacle detection that detects an obstacle 22 that is an elevator doorway that opens and closes the pair of landing doors 20 and 20A in accordance with the operation, and that consists of a retractable operating body 23A on the pair of car doors 21 and 21A side. When the obstacle detection device 23 detects the obstacle 22, an opening signal for moving the pair of landing doors 20, 20A and the pair of car doors 21, 21A in the opening direction is provided to the door of the elevator control panel. There is known an elevator entrance / exit safety device that outputs to a control unit.

  In the elevator entrance / exit safety device shown in FIG. 4, when the pair of car doors 21 and 21A are closed, an obstacle 22 such as a human hand is interposed between the pair of car doors 21 and 21A. When the operating body 23A of the obstacle detecting device 23 comes into contact with the obstacle 22 and the operating body 23A moves backward, the lever 23B connected to the operating body 23A is rotated, and the lever 23B is rotated. Electric opening / closing devices that output a door opening signal for moving the pair of landing doors 20, 20A and the pair of car doors 21, 21A in the opening direction are detected. However, in the elevator entrance / exit safety device shown in FIG. 5, even if a passenger's hand is inserted between the pair of landing doors 20 and 20A from the landing 25 side where the landing frame 24 is provided, the actuating body 23A is a pair of Since it is located on the side of the car doors 21 and 21A, the actuating body 23A does not hit the passenger's hand, and the door opening signal may not be output to the elevator door control device. There was a risk of an accident that the landing doors 20 and 20A were strongly pinched.

Therefore, in order to prevent the occurrence of the accident, as shown in FIG. 5, a projector 26 that projects infrared rays P provided on one landing door 20 and an infrared ray provided from the projector 26 on the other landing door 20A. An elevator entrance / exit safety device in which an infrared type obstacle detection device 26 comprising a light receiver 26A for receiving P is provided together with a lever type obstacle detection device 23 has been developed and patented by the present applicant. An application has been filed (for example, see Patent Document 1). In FIG. 5, the same reference numerals as those in FIG. 4 represent the same contents as those in FIG.
JP-A-10-175786 (paragraph numbers 0007 to 0018, FIGS. 1 and 3)

  However, in the elevator entrance / exit safety device described in Japanese Patent Application Laid-Open No. 10-175786 or FIG. 5, the projector 26 and the light receiver 26A together with the obstacle detection device 23 including the operating body 23A and the lever 23B. The obstacle detection device 26 must be installed, and the obstacle detection device 26 including the projector 26 and the light receiver 26A must be installed in all the landings 25 on each floor. There was a problem that the modification cost increased with time.

  In view of the above-described problems, the present invention aims at a case where a passenger's hand is inserted between a pair of car doors 21 and 21A from the inside of the car and between a pair of hall doors from the hall side. In any case where the passenger's hand is inserted, the passenger's hand is short enough to prevent the passenger's hand from being caught between the pair of landing doors 20, 20A or the pair of passenger car doors 21, 21A. An object of the present invention is to provide an elevator entrance / exit safety device that can be remodeled in time and with low remodeling costs.

  In order to achieve the above object, the present invention has a pair of car doors facing the pair of landing doors, and opens and closes the pair of landing doors in accordance with the opening / closing operation of the pair of car doors. An obstacle detection device that detects an obstacle when an obstacle is interposed between the pair of car doors at the elevator entrance and exit is provided on the pair of car doors. When the obstacle is detected, the elevator doorway safety device that outputs an opening signal for moving the landing door and the car door in the opening direction, the obstacle detection device includes the pair of landing doors and the pair of landing doors. A closing operation of the car doors closes a gap between the pair of landing doors and the pair of car doors, and the pair of car doors. At least one operating body protruding from the tip of the car door of any one of the doors, and a door opening signal is output when the obstacle is detected by the operating body. It is said.

  Further, according to the present invention, the operating body of the obstacle detection device is stored in the outer wall space on the side of the pair of car doors when the pair of landing doors and the pair of car doors are closed. It is characterized by that.

  Further, according to the present invention, when the operating body of the obstacle detecting device is opened from the closed state of the pair of landing doors and the pair of passenger car doors, the pair of landing doors and the pair of passenger cars It is characterized in that it moves so as to close the gap between the facing door.

  Further, according to the present invention, a lever that rotates when the operating body of the obstacle detection device is pressed is provided on the car door, and a door opening signal is output to the door control device by detecting the rotation of the lever. It is characterized by providing electrical switching equipment.

  According to the present invention, even if a passenger's hand is inserted between a pair of car doors from the inside of the car or between a pair of hall doors from the hall side, the passenger's hand is still connected to the pair of hall doors. And a pair of landing doors on each floor as well as being prevented from being pinched between or between a pair of landing doors. Since it is not necessary to install an infrared obstacle detection device on the door side, an elevator entrance / exit safety device that can be modified in a short time and with a small modification cost is obtained.

  Hereinafter, an embodiment of an elevator entrance / exit safety device according to the present invention will be described with reference to FIGS. 1 and 2.

  The elevator entrance 1 shown in FIG. 1 is provided with a landing frame 3 provided on the landing 2 side and a pair of landing doors 4 and 4A that block the opening of the landing frame 3. As shown in FIG. 1, a pair of car doors 6 and 6A provided on a car that moves up and down in a hoistway 5 constructed in a building is positioned so as to face the pair of landing doors 4 and 4A. is there. The pair of landing doors 4, 4 </ b> A and the pair of car doors 6, 6 </ b> A are structured to open both left and right.

  Between the pair of car doors 6 and 6A and the pair of landing doors 4 and 4A, an obstacle detection device 7 that constitutes a safety device of the elevator entrance 1 is provided. The obstacle detection device 7 includes a closing operation of the pair of landing doors 4 and 4A and the pair of passenger car doors 6 and 6A, and between the facing of the pair of landing doors 4 and 4A and the pair of passenger car doors 6 and 6A. When there is at least an actuating body 7A that protrudes from the ends of the pair of car doors 6 and 6A, and an obstacle such as a human hand is detected by the actuating body 7A In addition, a door opening signal for moving the landing doors 4, 4A and the car doors 6, 6A in the opening direction is output.

  Of the pair of car doors 6 and 6A, one car door 6A includes a lever 8 that rotates when the operating body 7A of the obstacle detection device is pressed, and detects the rotation of the lever 8. Thus, an electrical opening / closing device 10 is provided for outputting an opening signal to the door control unit 9 of the elevator control panel. The lever 8 and the electrical switchgear 10 are accommodated in the outer wall space S on the side of the car door 6A so as not to raise or lower the car.

  Further, when the pair of landing doors 4 and 4A and the pair of car doors 6 and 6A are opened from the closed state, the actuating body 7A of the obstacle detection device has a pair of landing doors as shown in FIG. 4 and 4A and the pair of car doors 6 and 6A are pivotally moved so as to close the gap G between the opposing sides, and the pair of landing doors 4 and 4A and the pair of car doors 6 and 6A are provided. In the closed state, as shown in FIG. 3, it rotates so as to be stored in the outer wall space S on the side of the car doors 6 and 6A.

  In the above embodiment, when the pair of landing doors 4, 4A and the pair of car doors 6, 6A are moving in the closing direction, the passenger's hand is placed between the pair of landing doors 4, 4A from the landing 2 side. When inserted, when the passenger's hand hits against the operating body 7A of the obstacle detection device 7, the lever 8 is rotated, whereby the pair of landing doors 4, 4A and the pair of car doors 6, 6A. When the door opening signal for moving the door in the opening direction is output from the electrical opening / closing device 10 to the door controller 9, the pair of landing doors 4, 4A and the pair of car doors 6, 6A are opened. Therefore, the passenger's hand inserted between the pair of landing doors 4 and 4A from the landing 2 side is not sandwiched between the pair of landing doors 4 and 4A.

  Furthermore, in the above embodiment, when the pair of landing doors 4 and 4A and the pair of car doors 6 and 6A are moving in the closing direction, the passenger's hand is moved from the inside of the car to the pair of car doors 6 and 6A. Is inserted between the pair of landing doors 4, 4A and the pair of car doors when the lever 8 is rotated by the passenger's hand hitting the operating body 7A of the obstacle detection device 7. When the door opening signal for moving the doors 6 and 6A in the opening direction is output from the electrical opening and closing device 10 to the door control unit 9, the pair of landing doors 4 and 4A and the pair of car doors 6 and 6A are opened. Therefore, the passenger's hand inserted between the pair of car doors 6 and 6A from the inside of the car is not sandwiched between the pair of car doors 6 and 6A.

  As described above, according to the above-described embodiment, as in the conventional example shown in FIG. 5, it is not necessary to install an infrared obstacle detection device on the landing doors 4 and 4A side of each floor. One safety device can be provided in a short time and with a small modification cost.

  Furthermore, according to the above-described embodiment, when the pair of landing doors 4 and 4A and the pair of car doors 6 and 6A are closed, as shown in FIG. By rotating around the rotating shaft 8A provided at the tip of the car 8, the car is accommodated in the outer wall space S on the side of the car doors 6 and 6A.

  In the above embodiment, when the operating body 7A of the obstacle detection device 7 is pushed by a human body such as a passenger's hand or an object carried by the passenger, the lever 8 rotates and the pair of landing doors 4, 4A and the pair of riding The door opening signal for moving the car doors 6 and 6A in the opening direction is output from the electrical opening / closing device 10 to the door control unit 9, but the present invention is not limited to this. When a human body such as a passenger's hand or an object carried by the passenger is interposed between the pair of landing doors 4 and 4A and between the pair of car doors 6 and 6A, the human body or the object is detected and the door is opened. As long as a signal is output to the electrical switchgear 10, a mechanical structure or an electrical structure may be used.

  Furthermore, although the said embodiment demonstrated by the one obstacle detection apparatus 7, it is not limited to this. A plurality of obstacle detection devices 7 may be appropriately arranged in the vertical direction of the pair of car doors 6 and 6A.

It is related with one Example of this invention, and is the principal part front view of an elevator doorway. It is AA sectional drawing of FIG. 1 in the state which concerns on one Example of this invention and a landing door and a car door open. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 in a state where a landing door and a car door are closed according to an exemplary embodiment of the present invention. It is a principal part cross-sectional view of the safety device of the elevator doorway which shows the prior art example 1. FIG. It is a principal part cross-sectional view of the safety device of the elevator doorway which shows the prior art example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Elevator entrance / exit 2 Platform 3 Platform frame 4, 4A landing door 5 Hoistway 6, 6A Car door 7 Obstacle detection device 7A Actuator 8 Lever 8A Rotating shaft 9 Door control part 9
10 Electric switchgear G Gap S Outer wall space

Claims (4)

A pair of car doors is positioned opposite to the pair of landing doors, and is an elevator doorway that opens and closes the pair of hall doors in accordance with opening and closing operations of the pair of car doors. When an obstacle is interposed between the car doors, an obstacle detection device that detects the obstacle is provided on the pair of car doors. When the obstacle detection device detects the obstacle, the landing door and the door In the elevator entrance and exit safety device that outputs a door opening signal that moves the car door in the opening direction,
The obstacle detection device closes the gap between the pair of landing doors and the pair of car doors together with the pair of landing doors and the pair of car doors, and closes the pair of landing doors. Having at least an operating body that protrudes from the tip of one of the car doors, and a door opening signal is output when the obstacle is detected by the operating body. Elevator doorway safety device.   The operating body of the obstacle detection device is stored in an outer wall space on the side of the pair of car doors when the pair of landing doors and the pair of car doors are closed. The elevator entrance / exit safety device according to claim 1.   When the pair of landing doors and the pair of car doors are opened from the closed state, the operating body of the obstacle detection device is between the pair of landing doors and the pair of car doors facing each other. The elevator entrance / exit safety device according to claim 2, wherein the safety device moves so as to close the gap.   Electric opening and closing devices that provide a lever that rotates when the operating body of the obstacle detection device is pressed on the car door and that outputs a door opening signal to the door control device by detecting the rotation of the lever. 4. The elevator entrance / exit safety device according to claim 1, 2, or 3.

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