JP2019127382A - Interlock device of elevator door - Google Patents

Abstract

To provide an interlock device for an elevator door capable of easily, accurately, and visually confirming that a margin for pushing a door switch has a specified dimension.SOLUTION: An interlock device for an elevator door has an interlock portion R that restricts the door opening operation of the landing door that opens and closes in the left-right direction, and a door switch 24 for detecting a door closed state by elastic deformation including a detection sensor portion 22 that is elastically deformed by being pressed from the upper side. The interlock portion R includes a movable side interlock portion 26 having a claw portion 30 projecting downward and a pressing portion 32 for pressing the detection sensor portion 22, and a fixed side interlock portion 28 having a restricting portion 36 that restricts the movement of the claw portion 30 in the door opening direction while in the door closed state. And the claw portion 30 has a mark M which can be visually observed. The mark M is disposed at the same height as an upper end 36u of the restricting portion 36 when the pressing portion 32 contacts the detection sensor portion 22.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to an elevator door interlock device.

  A door interlock device is arranged inside the elevator landing door (on the hoistway side) so that the landing door is not opened carelessly, and a door switch (door closing confirmation switch) so that the door closed state can be recognized. Is installed.

  A detection sensor portion that can be bent and deformed in the vertical direction is disposed in such a door switch, and when the door interlock device contacts the detection sensor portion when the elevator is installed, a pressing margin to the detection sensor portion is provided. Installation adjustment is performed to ensure (wipe amount). At that time, it is necessary for the installation engineer to confirm by checking the scale whether or not this pressing force has a specified size. Such confirmation work is also necessary for maintenance inspectors who regularly perform maintenance work.

Japanese Patent Laid-Open No. 3-182493

  However, when a scale is placed on the detection sensor unit to measure the pressing margin, the measurement operation takes time, and the measured values may vary. For this reason, it is desired that this push margin can be accurately confirmed visually.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an elevator door interlock device capable of easily and accurately confirming by visual observation that the pressing force to a door switch has a prescribed size. Is an issue.

  The door interlock device of the elevator according to the embodiment has an interlock portion that restricts the opening operation of the landing door that opens and closes in the left and right direction and a detection sensor portion that is elastically deformed by being pressed from the upper side. And a door switch for detecting a door closing state of the landing door. The interlock portion has a claw portion projecting downward and a pressing portion for pressing the detection sensor portion, and the movable side interlock moves in the door opening direction along with the movement of the landing door at the door opening operation. A stationary interlocking portion having a restricting portion that restricts the movement of the movable interlocking portion in the door opening direction by restricting the movement of the claw in the door opening direction in the door closing state; Is provided. And the nail | claw part has a visible mark. The mark is disposed at the same height position as the upper end of the regulating portion when the pressing portion contacts the detection sensor portion.

The side view which shows the door interlock apparatus of the elevator which concerns on embodiment. The door interlock apparatus of the elevator which concerns on embodiment, (a) is a side view which shows that the height position of a mark corresponds with the upper end of the control part of the fixed side interlock part, (b) is perfect. FIG. 3 is a side view showing that the door is closed. It is a side view which shows that the height position of a mark corresponds with the upper end of the control part of the fixed side interlock part by the modification of the door interlock apparatus of the elevator which concerns on embodiment, (b) FIG. 3 is a side view showing that the door is completely closed.

  Hereinafter, an elevator according to an example of an embodiment (hereinafter referred to as the present embodiment) will be described with reference to the accompanying drawings. FIG. 1 is a side view showing a main part of an elevator door interlock device according to the present embodiment. In FIG. 2, (a) is a side view showing that the height position of the mark coincides with the upper end of the restricting portion of the fixed-side interlock portion, and (b) is in a completely closed state. FIG.

  In the elevator described in the present embodiment, the door hanger 12 is hung on the door rail 10, and the landing door 14 (door panel) moves along the door rail 10 in the door opening and closing direction (left and right direction).

  In the door interlock device 20 for an elevator according to the present embodiment (hereinafter simply referred to as the door interlock device 20), the interlock portion R for restricting the opening operation of the landing door 14 and the detection of elastic deformation by being pressed from the upper side And a door switch 24 having a sensor unit 22 for detecting the closed state of the landing door by the elastic deformation. In the present embodiment, the detection sensor unit 22 will be described as an example of bending deformation as elastic deformation.

  The interlock part R includes a movable side interlock part 26 and a fixed side interlock part 28.

  Movable side interlock portion 26 has claw portion 30 projecting downward and pressing portion 32 for pressing detection sensor portion 22 and is attached to landing door 14 so that it can be used when the door is open. It is configured to move in the left-right direction U (horizontal direction) together with the door 14. The fixed side interlock portion 28 has a restricting portion 36 which restricts the movement of the movable side interlock portion 26 in the door opening direction by restricting the movement of the claw portion 30 in the door opening direction in the door closed state. Yes.

  In the present embodiment, the movable interlocking portion 26 is rotatably held on the side of the base portion 26 b constituting the movable interlocking portion 26. Then, the movable side interlock portion 26 is turned so that the tip end side of the movable side interlock portion 26 slightly rises with the landing of the car, and the door closing lock of the landing door 14 is released, and the landing of the car is completed. The movable side interlock portion 26 is pivoted so that the landing door 14 is closed with the door closed such that the tip end side of the movable side interlock portion 26 is slightly lowered with the movement from the floor. The pressing portion 32 is a plate-like member attached to the distal end portion of the movable side interlock portion main body 26m.

  Further, the detection sensor portion 22 of the door switch 24 extends horizontally from the door switch main body 24m to the movable side interlock portion 26 side, and can be elastically deformed (elastically deformable) in the vertical direction. Spring). And when movable side interlock part 26 descends with movement from a landing floor of a car, pushing part 32 contacts detection sensor part 22 from the upper part, and it has structure which presses detection sensor part 22 below. Yes. The door switch 24 detects that the landing door 14 is in the door-closed state when the detection sensor unit 22 is pressed and moves downward as described above.

  The nail | claw part 30 has the mark M which can be visually observed. The mark M is disposed at the same height position as the upper end 36 u of the regulating unit 36 when the pressing unit 32 contacts the detection sensor unit 22. In the present embodiment, the mark M is linear, and is disposed on the side of the claw portion 30 on the side of the restriction portion 36.

  Then, when the car is separated from the landing floor and the claws 30 of the movable interlocking part 26 completely reach the lower end position due to the same height, as shown in FIG. 2B. Thus, at the time of installation (at the time of installation work), the detection sensor unit 22 is pushed down by the pressure d of the specified dimension and the landing door 14 is completely closed by the claws 30. It is adjusted. Therefore, the engineer says that the pressing margin d (wipe amount; see FIG. 2B) to the detection sensor unit 22 by the pressing unit 32 of the movable interlocking unit 26 has a prescribed size (for example, 4 mm). It can be easily and accurately confirmed visually. Therefore, there is no need for a technician to apply a scale for measurement, and the variation in measurement values does not occur as in the prior art.

  Then, at the time of maintenance inspection, the maintenance inspector visually confirms that the height position of the mark M when the pressing portion 32 contacts the detection sensor portion 22 is the same height position as the upper end 36 u of the regulating portion 36 By doing this, it is possible to easily and accurately confirm that the pressure d to the detection sensor unit 22 of the door switch 24 has a prescribed size. Therefore, there is no need for maintenance personnel to apply a scale for measurement, and as in the prior art, variations in measured values do not occur.

  In addition, as shown in FIG. 2B, a mark N is attached to a predetermined position of the claw portion 30, and when the detection sensor portion 22 is pressed by a push d of a specified dimension, the height position of the mark N is You may make it the same structure as the height position of the upper end 36u. As a result, it can be easily visually observed at a glance that the detection sensor unit 22 is pressed by the pressing margin d of the specified dimension.

  Further, since the height difference h and the pressing margin d have the same value, as shown in FIG. 3, the height direction Z when the landing door 14 is completely closed is as shown in FIG. A scale 40 may be arranged along the line. Thereby, by measuring the distance in the vertical direction from the upper end 36u of the restricting portion 36 to the mark M, the push margin d of the detection sensor portion 22 can be known. The mark M may constitute a part of the scale 40.

  In this case, the mark M is located at the lowermost end of the scale 40, and the length of the mark M may be longer than the scale 40 (see FIG. 3), whereby the difference between the mark M and the scale 40 Is easy to see.

  Also, the mark M may be located at the lowermost end of the scale 40, and the thickness of the mark M may be thicker than the scale 40 (see FIG. 3). Thereby, it is easier to visually recognize the difference between the mark M and the scale 40.

  In addition, an enlarged loupe (not shown) may be disposed on the visual side of the mark M and the upper end 36 u of the restriction portion 36. Thereby, it can make it easy to visually recognize from a distant place. Usually, a transparent door switch cover is provided, and a part of the door switch cover may be a magnifying glass so as to be enlarged from the viewing side.

  Further, the mark M may be a member of a predetermined shape (for example, a member in the shape of an arrow) configured by a reflection plate that reflects light. Thereby, even in the hoistway, it can be easily visually recognized with a flashlight or the like. Moreover, you may use a reflective tape as a reflecting plate, and by this, the mark M can be easily arrange | positioned to the nail | claw part 30 by affixing on the predetermined position of the nail | claw part 30. FIG.

  Although the embodiments have been described above, the embodiments are presented as examples, and the scope of the invention is not intended to be limited to them. The embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The embodiments and the modifications thereof are included in the scope of the invention and the scope of the invention, and are also included in the invention described in the claims and the equivalents thereof.

Reference Signs List 10 door rail 12 door hanger 14 landing door 20 elevator door interlock device 22 detection sensor unit 24 door switch 24 m door switch main body 26 movable side interlock portion 26 b base , 26 m ... movable side interlock unit body, 28 ... fixed side interlock unit, 30 ... claw unit, 32 ... pressing unit, 36 ... regulation unit, 36 u ... upper end, 40 ... scale, d ... pushing distance, h ... height Difference, M ... mark, R ... interlock part, U ... left-right direction, Z ... height direction.

Claims (5)

A door that has an interlock part that restricts the opening operation of a landing door that opens and closes in the left and right direction and a detection sensor part that is pressed from the upper side and elastically deformed, and detects the closed state of the landing door by the elastic deformation. A switch,
The interlock part is
A movable side interlocking part that has a claw part projecting downward and a pressing part for pressing the detection sensor part, and moves in the door opening direction along with the movement of the landing door during the door opening operation;
In the door-closed state, by fixing the movement of the claw portion in the door-opening direction, the fixed-side interlock portion having a restriction portion that restricts the movement of the movable-side interlock portion in the door-opening direction;
With
The claw portion has a visible mark,
The door interlock device for an elevator, wherein the mark is disposed at the same height as the upper end of the restricting portion when the pressing portion is in contact with the detection sensor portion.   The elevator door interlock device according to claim 1, wherein a scale is disposed on the hook portion along a height direction when the landing door is completely closed.   The elevator door interlock device according to claim 2, wherein the mark is located at a lowermost end of the scale, and the length of the mark is longer than the scale.   The elevator door interlock device according to claim 2 or 3, wherein the mark is located at the lowermost end of the scale, and the thickness of the mark is thicker than the scale.   The elevator door interlock device according to any one of claims 2 to 4, wherein an magnifying loupe is arranged on a viewing side of the mark and the upper end.

Images