JP2010023951A - Door device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door device of an elevator, surely detecting rope-like foreign matter between a door and a door stop post. <P>SOLUTION: The door device of an elevator includes: single sliding doors 1a, 1b opening/closing a doorway of an elevator by a door opening/closing mechanism; a sill 6 having a groove 6a guiding the opening/closing of the door; and a detection means 9 disposed to the door stop post 8, and detecting pinching of foreign matter between the door stop post 8 and the door. A lower gap of the door at least from the height position of a floor surface to the height position of a lower end face of the door is closed by a closing member 10. The detection means is extended upward from the height position of the floor surface or a predetermined height position in the groove to a predetermined height position, and surely detects rope-like foreign matter 11 on the floor surface or in the groove, between the door and the door stop post. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator door device, and more particularly, to an elevator door device of a single-sliding door type that detects foreign object pinching between a door and a door-to-door pillar.

In the door device of a single-sliding door type elevator, conventionally, a switch for stopping or stopping the door closing operation has been provided on the door contact surface or the stepped portion of the door stop, and foreign matter is placed between the door and the door stop column. There has been proposed a switch that operates when it is sandwiched to improve safety (for example, see Patent Document 1).
Japanese Utility Model Publication No. 53-25058 (first page, FIG. 1)

  The conventional device described above is effective in detecting a foreign object, such as a part of a passenger's body, located at a predetermined height and between the door and the door-to-door pillar. However, the door device of a single-sliding door type elevator has a lower gap of the door from the height position of the floor surface to the height position of the lower end surface of the door, for example, the floor surface between the door and the door-to-door pillar. When there is a string-like foreign material on the upper side, there is a problem that the string-like foreign material is caught in the lower gap according to the closing operation of the door, and the foreign object cannot be detected. In this way, a string-like foreign object cannot be detected, and there is a risk of an accident if the car goes up and down with one end on the landing side and the other end with a string-like foreign object on the car side. It is extremely important for safety to reliably detect a foreign object.

  The present invention is made from the above-described actual state of the prior art, and an object of the present invention is to provide an elevator door device that can reliably detect a string-like foreign object between a door and a door-to-door pillar. is there.

  In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention includes a sliding door type door that opens and closes an elevator door by a door opening and closing mechanism, and a sill provided with a groove that guides the opening and closing of the door; A detecting means provided on a door-to-door pillar and detecting foreign matter sandwiched between the door-to-door pillar and the door, and at least from a height position of a floor surface to a height position of a lower end surface of the door; The door lower gap is closed by a closing member, and the detection means is extended from a height position of the floor surface or a predetermined height position in the groove upward to a predetermined height position. It is a feature.

  In the invention according to claim 1 of the present invention configured as described above, the closing member closes at least the lower gap of the door from the height position of the floor surface to the height position of the lower end surface of the door, and detects The means is in a door-to-door pillar and extends from a height position of the floor surface or a predetermined height position in the groove upward to a predetermined height position. Thereby, the string-like foreign material between the door and the door-to-door pillar can be reliably detected by being pressed against the door-to-door pillar detecting means by the closing member in accordance with the door closing operation.

  In the invention according to claim 2 of the present invention, the closing member is provided in the door or a guide member for guiding opening and closing of the door along the groove, and from the lower end surface of the door into the groove. It is characterized by being arranged to enter.

  In the invention according to claim 2 of the present invention configured as described above, the closing member provided in the door or the guide member that guides opening and closing of the door along the groove is disposed so as to enter the groove from the lower end surface of the door. Thus, the string-like foreign matter that has entered the groove can be pressed against the door-contacting column detecting means by the closing member in accordance with the door closing operation. In addition, due to changes in the door opening and closing device and door installation status, and the aging installation status, it can also handle gaps that may be formed between the upper surface of the sill and the lower end of the closing member, enabling reliable foreign object detection. Become.

  According to the present invention, it is possible to reliably detect the string-like foreign matter that is between the door and the door-to-door pillar and has entered the floor surface or in the groove, and the safety of the elevator can be improved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator door device according to the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of an elevator door device according to the present invention, and is a front view of a car door viewed from the landing side when the door is fully closed, and FIG. 2 is an AA view of FIG. FIG. 3 is a partial enlarged view of a portion B in FIG. 1 according to an embodiment of the present invention.

  As shown in FIG. 1, the elevator of the single-sliding door type according to this embodiment is such that the upper parts of the car doors 1a and 1b are hung on the rail 3 of the door opening / closing device 2, and the guide members 4 are provided on the lower parts of the car doors 1a and 1b. The guide member 4 and the guide means 5 attached to the guide member 4 have fallen into a groove 6a (described later) provided in the sill 6, and the motor 7 is rotated so that the car is moved by an opening / closing mechanism (not shown). The door is opened and closed along the rail 3 of the door opening and closing device 2 and the groove 6 a of the sill 6.

  Further, as shown in FIG. 2, the car door column 8 is provided with detection means, for example, a pressure-sensitive sensor 9, for detecting foreign object pinching between the car door 1a and the door column 8 and the car door 1a. When 1b is fully closed, the pressure sensor 9 and the car door 1a are in close contact with each other. As a result, when no foreign matter is caught, no detection signal is output, and when any foreign matter gets caught between the car door 1a and the car door post column 8, the pressure-sensitive sensor 9 detects the local pressure increase, and door opening / closing control is performed. To reflect. The pressure sensor 9 is located in the door-to-door pillar 8 and extends upward from the floor height position to a predetermined height position.

  Furthermore, as shown in FIG. 3, a part of the guide member 4 is extended to the door contact surface of the car door 1a, and a lower gap of the door extending from the floor height position to the height position of the lower end surface of the door 1a is formed. The closing member 10 is provided so as to enter the groove 6a from the lower end face of the door. The material of the closing member 10 is, for example, a metal that is easy to obtain and process. Moreover, the width dimension of the closing member 10 is set small compared with the width dimension of the groove | channel 6a so that the groove | channel wall surface of the sill 6 may not be contacted.

  In the door device of this embodiment, as shown in FIG. 3, if there is a string-like foreign material 11 on the floor so as to straddle the sill 6 between the car door 1 a and the door stop column 8, the car door With the closing operation of 1a and 1b, the string-like foreign material 11 is pushed and moved by the closing member 10, and the string-like foreign material 11 is pressed against the pressure-sensitive sensor 9 of the door-to-door pillar 8 by the further closing operation of the car doors 1a and 1b. It is done. Thereby, the pressure sensor 9 detects the local pressure increase and reflects it in the door opening / closing control. Further, since the closing member 10 is arranged so as to enter the groove 6a from the lower end surface of the door, the string-like foreign matter that has entered the groove 6a is also sensed by the closing member 10 by the closing member 10 as the door closes. It can be pressed against the pressure sensor 9.

  According to the present embodiment, it is possible to reliably detect the string-like foreign material 11 that is between the car door 1a and the door-to-door pillar 8 and enters the groove 6a, thereby improving the safety of the elevator. Can be planned. Further, by disposing the closing member 10 so as to enter the groove 6a from the lower end surface of the door, the upper and lower surfaces of the sill 6 can be changed by changing the installation state of the door opening / closing device and the doors 1a and 1b and the installation state over time. Corresponding to a gap that may be formed between the lower end of the closing member 10 and reliable foreign object detection is possible.

  In the present embodiment, the closing member 10 extends a part of the guide member 4 and has an integral structure. However, the present invention is not limited to this, and for example, a structure in which another part is attached to the guide member 4 may be used. In this case, it is possible to retrofit the existing elevator. In this embodiment, the material of the closing member 10 is metal. However, in view of the fact that the closing member 10 abuts on the pressure-sensitive sensor 9 every time the car door 1a is closed, there is no problem with the strength of the resin. The pressure-sensitive sensor 9 may be protected by using rubber or the like. Conversely, if there is no problem in sensitivity, the pressure-sensitive sensor 9 may be provided with a protective coating.

  Further, in this embodiment, the closing member 10 is installed so as to enter the groove 6a of the sill 6, and the width dimension of the closing member 10 is set smaller than the width dimension of the groove 6a. The width may be increased so that it slides on the groove wall surface, and the blocking member 10 may have the same function as the guiding means 5, thereby increasing the contact area with the string-like foreign material 11 and stabilizing the foreign material. Detection is possible.

  Furthermore, the pressure sensor 9 may be of any type as long as it detects an increase in local pressure when the string-like foreign material 11 is sandwiched by the car door 1a, and the pressure sensor 9 is made of rubber. You may coat | cover with such a buffer member. Further, the pressure-sensitive sensor 9 is not necessarily required for the entire height of the entrance / exit, and may be from the height position of the floor surface to the required height position depending on the object to be detected.

  FIG. 4 is a view corresponding to FIG. 3 showing another embodiment of an elevator door device according to the present invention. In addition, the same code | symbol is attached | subjected to the thing equivalent to what was shown in FIGS. 1-3 mentioned above.

  As shown in FIG. 4, the elevator door device of another embodiment extends a part of the door contact surface of the car door 1 a into the groove 6 a of the sill 6 to form a closing member 10 a. As a result, the same effects as those of the above-described embodiment can be obtained, and it is not necessary to adjust the closing member 10a to be flush with the door contact surface of the car door 1a.

It is the front view which showed one Embodiment of the door apparatus of the elevator which concerns on this invention, and looked at the car door at the time of door full closure from the landing side. It is principal part sectional drawing in alignment with the AA of FIG. 1 in one Embodiment of this invention. It is the elements on larger scale of the B section of Drawing 1 in one embodiment of the present invention. It is the FIG. 3 equivalent view which shows other embodiment of the door apparatus of the elevator which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b Car door 2 Door opening / closing device 3 Rail 4 Guide member 5 Guide means 6 Sill 6a Groove 7 Motor 8 Car door pillar 9 Pressure sensor 10, 10a Closing member 11 String-like foreign material

Claims (2)

  A single-sliding door type door that opens and closes the doorway of the elevator by a door opening and closing mechanism, a sill with a groove that guides the opening and closing of the door, and a door-to-door pillar, foreign matter between the door-to-door pillar and the door Detecting means for detecting the pinching of the door, and closing the door lower gap from at least the height position of the floor surface to the height position of the lower end surface of the door with a closing member, and the detection means An elevator door device that extends from a height position or a predetermined height position in the groove upward to a predetermined height position.   The closing member is provided in the door or a guide member that guides opening and closing of the door along the groove, and is disposed so as to enter the groove from a lower end surface of the door. Item 2. An elevator door device according to Item 1.

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