Elevator door device, and method for positioning sensor unit and part to be detected in elevator door device

Abstract

To provide an elevator door device that allows easy position adjustment of a sensor for detecting the fully open position of a door section and a part to be detected, and a method for positioning the sensor unit and the part to be detected of the door device.SOLUTION: The present invention comprises a door section, a frame having a door rail, a part to be detected that moves together with the door section in the width direction of the entranceway, and an open position sensor unit having a first sensor capable of detecting the part to be detected and a support section that supports the first sensor. The part to be detected is located outside the opening area of the entranceway when the door section is in the fully open position in the width direction. The first sensor is supported by the support section at a position corresponding to the part to be detected in the width direction when the door section is in the fully open position. The support section extends from the first sensor in the width direction to an edge position or an inner position of the opening area, and is fixed to the frame so that its position in the width direction can be changed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an elevator door device and a method for positioning a sensor unit and a detected unit in an elevator door device. [Background technology]

[0002] Conventionally, an elevator door device that detects the fully open state of a car door by a sensor has been known (see Patent Document 1). As shown in Fig. 9, this elevator door device 100 has a car door 102 that opens and closes a car entrance 101, a door rail 103 that extends in the width direction of the car entrance 101 (the left-right direction in Fig. 9) and guides the car door 102 in the width direction, and is equipped with a frame 104 that extends in the width direction above the car entrance 101, a detectable part 105 fixed to the car door 102, and a magnetic proximity sensor 106 that can detect the detectable part 105.

[0003] The car door 102 has a door hanger 102A and a door panel 102B hung from a door rail 103 via the door hanger 102A, and the detected part 105 is fixed to a bracket 102C extending from the door hanger 102A and moves in the width direction together with the car door 102 as the car door 102 opens and closes. The magnetic proximity sensor 106 is fixed to the frame 104.

[0004] In this elevator door device 100, the magnetic proximity sensor 106 detects that the car door 102 is fully open by detecting that the detected part 105 is located below the magnetic proximity sensor 106 when the car door 102 is open. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 7296063 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above elevator door device 100, when installing the car door 102, etc., the car door 102 is set in the fully open position and the positions of the detection target part 105 and the magnetic proximity sensor 106 are adjusted so that they face each other in close proximity in the vertical direction.

[0007] However, at this time, the fixing member (bolt in the example of Figure 9) B of the detected part 105 to the bracket 102C is located outside the opening area in the width direction (more specifically, the opening area of ​​the car entrance / exit 101 when the car door 102 is in the fully open position) Ar2, so that workers, etc. cannot access the bolt B, making it difficult to adjust the position.

[0008] Therefore, an object of the present invention is to provide an elevator door device that makes it easy to adjust the positions of a sensor and a detected part for detecting the fully open position of a door part, and a method for positioning a sensor part and a detected part in an elevator door device. [Means for solving the problem]

[0009] The elevator door device of the present invention comprises: A door section for opening and closing the entrance; a frame extending in the width direction of the entrance and having a door rail that guides the door portion in the width direction, the frame extending in the width direction at a position above the entrance; a detection target portion that moves together with the door portion in the width direction; an open position sensor unit including a first sensor capable of detecting the detection portion and a support portion supporting the first sensor and extending in the width direction; the detection portion is disposed so as to be located outside an opening area of ​​the entrance when the door portion is in a fully open position in the width direction, the first sensor is supported by the support portion at a position corresponding to the detected portion in the width direction when the door portion is in a fully open position, The support portion extends in the width direction from at least the first sensor to an edge position of the opening region or an inner position of the opening region, and is fixed to the frame so that its position in the width direction is changeable.

[0010] According to this configuration, the support portion of the open position sensor extends to the edge position of the opening area in the width direction or to the inner position of the opening area. Therefore, even when the door section is in the fully open position, the position of the first sensor relative to the detected part can be adjusted by moving the support portion in the width direction relative to the frame, thereby making it easy to adjust the positions of the first sensor and the detected part.

[0011] In the elevator door device, The open position sensor portion may have an extension portion extending from the support portion in a direction intersecting the width direction and away from the frame.

[0012] According to this configuration, when moving the support portion to adjust the position of the first sensor, an operator or the like can grasp and move the extension portion, making it easier to perform the operation of adjusting the position.

[0013] In addition, in the elevator door device, The extension portion may extend from an edge position of the opening region in the width direction of the support portion or from an inner position of the opening region.

[0014] According to this configuration, when adjusting the position of the first sensor, it is easier for an operator to grasp the extension portion, making it easier to perform the operation of adjusting the position.

[0015] Further, the door device of the elevator is a closed position sensor unit having a second sensor capable of detecting the detection target portion, the detection target portion is disposed so as to be located inside the opening area in the width direction when the door portion is in a fully closed position, The second sensor may be disposed at a position on the frame corresponding to the detected portion in the width direction when the door portion is in a fully closed position.

[0016] In this way, by detecting a single detectable part with a first sensor and a second sensor arranged at different positions to detect whether the door part is in the fully open position or the fully closed position, the number of detectable parts can be reduced, i.e., the configuration can be simplified.

[0017] In addition, in the elevator door device, the first sensor and the second sensor are proximity sensors that can detect the detection target portion when facing the detection target portion in the up-down direction, and are disposed at the same position in the up-down direction on the frame, The detected portion may be fixed to the door portion so that its position in the up-down direction is changeable.

[0018] According to this configuration, by adjusting the vertical position of the detectable part relative to either the first sensor or the second sensor, the vertical position of the detectable part relative to the other of the first sensor or the second sensor is adjusted (i.e., there is no need to adjust the vertical position of the detectable part relative to the other of the first sensor or the second sensor), making it easier to adjust the positions of the first sensor, the second sensor, and the detectable part.

[0019] In addition, in the elevator door device, The frame has an upper end extending in the width direction, The first sensor and the second sensor may be disposed at the top end of the frame.

[0020] With this configuration, the first sensor and the second sensor are arranged at the upper end of the frame, so that their positions in the vertical direction are the same, making it easier to arrange the open position sensor unit and the closed position sensor unit on the frame.

[0021] In addition, in the elevator door device, The frame has a vertical portion extending in the up-down direction and also in the width direction, and a horizontal portion extending from an upper end of the vertical portion in a normal direction to the vertical portion and also in the width direction, the horizontal portion has a through hole or a notch penetrating in the up-down direction at a position corresponding to the first sensor, the support portion has a first portion extending from the first sensor toward the opening region in the width direction and a second portion extending from the first sensor to a side opposite the opening region, The open position sensor unit may be arranged with the first sensor inserted into the through hole or the notch, and the first portion and the second portion overlapping from above the horizontal portion on both sides of the through hole or the notch in the width direction.

[0022] In this way, in the width direction, the portions (first portion and second portion) on either side of the through hole or notch in the support portion are overlapped on the horizontal portion of the frame, thereby effectively suppressing vertical movement (vibration, shaking, etc.) of the first sensor.

[0023] Further, a method for positioning a sensor unit and a detected unit in an elevator door device of the present invention includes the steps of: A door section for opening and closing the entrance; a frame extending in the width direction of the entrance and having a door rail that guides the door portion in the width direction, the frame extending in the width direction at a position above the entrance; a detection target portion that moves together with the door portion in the width direction; an open position sensor unit including a first sensor capable of detecting the detection portion and a support portion supporting the first sensor and extending in the width direction; a closed position sensor unit having a second sensor capable of detecting the detection target portion, the detected portion is disposed so as to be located outside an opening area of ​​the entrance when the door portion is in a fully open position, in the width direction, and to be located inside the opening area in the width direction when the door portion is in a fully closed position, and is fixed to the door portion so as to be changeable in its position in the up-down direction; the first sensor is supported by the support portion at a position corresponding to the detected portion in the width direction when the door portion is in a fully open position, The support portion extends from at least the first sensor in the width direction to an edge position of the opening region or an inner position of the opening region, and is fixed to the frame so as to be changeable in position in the width direction; the second sensor is disposed on the frame at a position corresponding to the detected portion in the width direction when the door portion is in a fully closed position, the first sensor and the second sensor are proximity sensors capable of detecting the detection target when facing the detection target in the up-down direction, and are arranged at the same position in the up-down direction on the frame; adjusting a position of the detection target portion in the up-down direction relative to the second sensor in a state where the door portion is in a fully closed position; After adjusting the vertical position, the widthwise position of the first sensor relative to the detected portion is adjusted by operating the support portion with the door portion in a fully open position.

[0024] According to this configuration, by adjusting the vertical position of the detectable part relative to the second sensor, the vertical position of the detectable part relative to the first sensor is adjusted (i.e., there is no need to adjust the vertical position of the detectable part relative to the first sensor), making it easier to adjust the positions of the first sensor, the second sensor, and the detectable part. Effect of the Invention

[0025] As described above, according to the present invention, it is possible to provide an elevator door device in which the positions of a sensor and a detected part for detecting the fully open position of a door part can be easily adjusted, and a method for positioning a sensor part and a detected part in an elevator door device. [Brief description of the drawings]

[0026] [Figure 1] FIG. 1 is a view showing an upper part of the door device of the present embodiment. [Diagram 2] FIG. 2 is an enlarged view of the vicinity of the attachment position of the closed position sensor unit in the door device. [Diagram 3] FIG. 3 is a front view of a frame provided in the door device. [Figure 4] FIG. 4 is a plan view of the frame. [Diagram 5] FIG. 5 is a side view of the frame. [Figure 6] FIG. 6 is an enlarged view of the vicinity of the mounting position of the open position sensor unit in the door device. [Figure 7] FIG. 7 is an enlarged view of the vicinity of the mounting positions of the open position sensor unit and the closed position sensor unit in a plan view of the door device. [Figure 8] FIG. 8 is a plan view of the open position sensor unit. [Figure 9] FIG. 9 is a diagram showing the upper part of a conventional door device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, one embodiment of the present invention will be described with reference to FIGS.

[0028] As shown in Fig. 1, an elevator door device according to this embodiment (hereinafter also simply referred to as "door device") is disposed at an entrance (opening) 12 of an elevator car body 11, and opens and closes the entrance 12. Thus, an elevator car 10 according to this embodiment includes the car body 11 and the door device 1.

[0029] Specifically, the door device 1 includes a door section 2 that opens and closes the entranceway 12, a door rail 3 that extends in the width direction of the entranceway 12 (left and right direction in FIG. 1), a frame 4 that extends in the width direction at a position above the entranceway 12, a detectable section 5 that moves in the width direction together with the door section 2, and an open position sensor section 6 that detects the detectable section 5 when the door section 2 is in a fully open position P1. The door device 1 also includes a closed position sensor section 7 that detects the detectable section 5 when the door section 2 is in a fully closed position P2. Furthermore, the door device 1 includes a door drive section 8 that drives the door section 2. The door device 1 of this embodiment is a so-called center-open type door device that includes two door sections 2 and opens and closes the entranceway 12 by moving the door sections 2 toward or away from each other in the width direction.

[0030] In the following explanation, the width direction of the entrance / exit 12 is defined as the X-axis direction in the Cartesian coordinate system, the direction of entry / exit from the entrance / exit 12 to the car body 11 is defined as the Y-axis direction in the Cartesian coordinate system, and the up / down direction is defined as the Z-axis direction in the Cartesian coordinate system.

[0031] Each of the two door sections 2 has a door panel 21, a door hanger 22 for suspending the door panel 21, and a bracket 23 for connecting the door hanger 22 to the door drive section 8.

[0032] The door panel 21 is a panel member that extends in a plane direction perpendicular to the Y-axis direction, and has a rectangular plate shape that is long in the Z-axis direction.

[0033] The door hanger 22 has a hanger body 220 to which the door panel 21 is connected, a first roller 221 disposed on the hanger body 220 and rolling on the door rail 3, and a second roller 222 disposed on the hanger body 220 and rolling while abutting against the door rail 3 from below. The door hanger 22 of this embodiment has two first rollers 221 and two second rollers 222.

[0034] The hanger body 220 is a plate-like portion that is connected to the upper end of the door panel 21 and extends upward from the upper end. The hanger body 220 of this embodiment has a rectangular shape that is elongated in the X-axis direction when viewed in the Y-axis direction.

[0035] Each of the two first rollers 221 is disposed on the hanger body 220 so as to be rotatable around a first rotation shaft 221a extending in the Y-axis direction. These two first rollers 221 are disposed on the hanger body 220 so as to be spaced apart from each other in the opening / closing direction and to abut against the door rail 3 from above.

[0036] The second roller 222 is disposed in the hanger body 220 so as to be rotatable about a second rotation shaft 222a extending in the Y-axis direction. The second roller 222 is disposed in the hanger body 220 in a state in which the second roller 222 abuts against the door rail 3 from below so as to sandwich the door rail 3 between the first roller 221 and the second roller 222 in the Z-axis direction.

[0037] As shown in FIG. 2, the bracket 23 is a member that extends upward from the hanger body 220, and the tip of the bracket 23 is connected to the endless belt 85 of the door drive unit 8.

[0038] The bracket 23 of one door part 2A (the left door part in FIG. 1) of the two door parts 2 has a plurality of bracket through holes 231 (two in this embodiment) arranged at predetermined positions in the Z axis direction and spaced apart in the X axis direction. Each bracket through hole 231 is an elongated hole extending in the Z axis direction.

[0039] As shown in Figs. 3 to 5, the frame 4 has a door rail 3 that guides the door section 2 in the X-axis direction, and extends in the X-axis direction above the entrance 12. The frame 4 has an upper end 4a that extends in the X-axis direction. Specifically, the frame 4 has a vertical section 41 that extends in the Z-axis direction and in the X-axis direction, and a horizontal section 42 that extends from the upper end 41a of the vertical section 41 in the normal direction (Y-axis direction) of the vertical section 41 and in the X-axis direction. The frame 4 in this embodiment is formed by bending the upper end of a band-shaped member that extends in the X-axis direction. Therefore, the upper end 41a of the vertical section 41 constitutes the upper end 4a of the frame 4.

[0040] More specifically, the vertical portion 41 is a rectangular plate-like portion that is long in the X-axis direction. The dimension of the vertical portion 41 in the X-axis direction is greater than the dimension of the car body 11 in the X-axis direction. The vertical portion 41 has a first notch 411 arranged at a position corresponding to the open position sensor unit 6 (more specifically, a first sensor 61 described later), and a second sensor through-hole 412 arranged at a position corresponding to the closed position sensor unit 7 (more specifically, a second sensor 71 described later) and penetrating in the Y-axis direction (see FIG. 3).

[0041] The horizontal portion 42 is a long strip-shaped portion in the X-axis direction, and extends from one end of the vertical portion 41 to the other end in the X-axis direction. The horizontal portion 42 has a through-hole or a notch that penetrates in the Z-axis direction at a position corresponding to the open position sensor portion 6 (more specifically, a first sensor 61 described later). The horizontal portion 42 in this embodiment has a second notch 421 at a position corresponding to the open position sensor portion 6.

[0042] The second notch 421 is disposed at a position in the horizontal portion 42 corresponding to the detected portion 5 (more specifically, the opposing portion 51 described below) when the door portion 2A is in the fully open position P1. The second notch 421 is connected to the first notch 411 in the vertical portion 41 to form the first sensor through hole 43. In the horizontal portion 42 of this embodiment, the dimension in the Y-axis direction at each position in the X-axis direction is the same or approximately the same.

[0043] Moreover, the horizontal portion 42 has at least one first fixing through hole 422 used to fix the open position sensor unit 6, and at least one second fixing through hole 423 used to fix the closed position sensor unit 7. In the horizontal portion 42 of this embodiment, a plurality of (two in the example shown in FIG. 4) first fixing through holes 422 are arranged at intervals in the X-axis direction, and a plurality of (two in the example shown in FIG. 4) second fixing through holes 423 are arranged at intervals in the Y-axis direction.

[0044] In addition, these two first fixing through holes 422 are arranged in the X-axis direction at or near the edge position P3 of the opening area Ar1 (the range indicated by the arrow of symbol Ar1 in Figure 1) of the entrance / exit 12 in the X-axis direction when the door section 2A is in the fully open position P1. In this embodiment, the two first fixing through-holes 422 are disposed in the horizontal portion 42 such that the edge position P3 is located therebetween (see FIG. 4).

[0045] The detected part 5 is attached to the door part 2A and moves in the X-axis direction together with the door part 2A. The detected part 5 in this embodiment is attached to one of the two door parts 2, the door part 2A. The detected part 5 (more specifically, the facing part 51) is attached to the door part 2A so as to be located outside the opening area Ar1 (the range indicated by the arrow with the symbol Ar1 in FIG. 1) of the entrance 12 in the X-axis direction when the door part 2A is in the fully open position P1, and is located inside the opening area Ar1 in the X-axis direction when the door part 2A is in the fully closed position P2 (see FIG. 1). The detected part 5 is fixed to the door part 2A so as to be able to change its position in the Z-axis direction.

[0046] Specifically, the detected part 5 has a facing part 51 that faces each of the sensors 61, 71 of the open position sensor part 6 or the closed position sensor part 7 when the door part 2A is in the fully open position P1 or the fully closed position P2, and a first support part 52 that extends in the X-axis direction and supports the facing part 51. At least the facing part 51 of the detected part 5 is made of metal, and the detected part 5 of this embodiment is entirely made of metal.

[0047] The first support portion 52 extends toward the door-closed side in the X-axis direction and has a facing portion 51 at its tip. In this embodiment, the first support portion 52 is a plate-shaped portion that extends in a direction perpendicular to the Y-axis direction and is long in the X-axis direction. The first support portion 52 has a plurality of (two in this embodiment) first support portion through holes 521 that penetrate in the Y-axis direction in the portion on the door-opening side in the X-axis direction (see FIG. 2). These multiple first support portion through holes 521 are arranged at intervals in the X-axis direction, and each first support portion through hole 521 is a long hole that extends in the X-axis direction.

[0048] Moreover, the first support portion 52 is fixed to the bracket 23 of the door portion 2A by first fastening members F1 whose number corresponds to the number of the first support portion through holes 521. Each of the plurality of first fastening members F1 has a bolt inserted through the first support portion through hole 521 of the first support portion 52 and the bracket through hole 231 of the bracket 23, and a nut screwed onto the bolt.

[0049] When this first support portion 52 is fixed to the bracket 23, the first support portion through hole 521 is a long hole extending in the X-axis direction, and the bracket through hole 231 is a long hole extending in the Z-axis direction. Therefore, by loosening the nuts of each first fastening member F1, it is possible to change the position (position adjustment) of the first support portion 52 (i.e., the opposing portion 51) in the X-axis direction and the Z-axis direction, respectively.

[0050] The facing portion 51 is a plate-like portion extending in a plane direction perpendicular to the Z-axis direction, and is disposed at the tip end (the end on the right side in FIG. 2) of the first support portion 52. The shape and size of the facing portion 51 as viewed in the Z-axis direction correspond to the detection surfaces 61a, 71a of the sensors 61, 71.

[0051] The open position sensor unit 6 detects that the door part 2A has moved to the fully open position P1 by the first sensor 61 detecting the facing part 51. As shown in Figs. 6 to 8, the open position sensor unit 6 has a first sensor 61 capable of detecting the detection target part 5 (specifically, the facing part 51) and a sensor support part (support part) 62 supporting the first sensor 61 and extending in the X-axis direction. The open position sensor unit 6 also has an extension part 63 extending from the sensor support part 62 in a direction intersecting the X-axis direction and away from the frame 4 (specifically, the horizontal part 42). The open position sensor unit 6 of this embodiment also has a plate member 64 sandwiched between the first sensor 61 and the sensor support part 62. In the open position sensor unit 6 of this embodiment, the sensor support part 62 and the extension part 63 are integral with each other.

[0052] The first sensor 61 is a sensor capable of detecting the facing portion 51 in a non-contact manner, and is disposed at the upper end 4a of the frame 4. The first sensor 61 of the present embodiment detects the facing portion 51 (detected portion 5) when the detection surface 61a faces the facing portion 51 in a state in which the detection surface 61a is close to the facing portion 51 (with a slight gap therebetween) (see FIG. 6).

[0053] The first sensor 61 is supported by a sensor support portion 62 at a position corresponding to the detected portion 5 (more specifically, the facing portion 51) in the X-axis direction when the door portion 2A is in the fully open position P1. The first sensor 61 of this embodiment is a proximity sensor, and detects the facing portion 51 by positioning the facing portion 51 below a detection surface 61a of the first sensor 61 (see FIG. 6).

[0054] The sensor support part 62 extends from at least the first sensor 61 in the X-axis direction to an edge position (more specifically, an edge position on the door opening side) P3 of the opening area Ar1 or an inner position P4 of the opening area Ar1, and is fixed to the frame 4 so as to be able to change its position in the X-axis direction. The sensor support part 62 in this embodiment supports the first sensor 61 in a state in which the first sensor 61 is inserted into the notch 421 of the horizontal part 42, and extends from at least the first sensor 61 in the X-axis direction to the inner position P4 of the opening area Ar1. Note that the inner position P4 in Fig. 6 is an example, and this inner position P4 is any position within the range of the opening area Ar1 in the X-axis direction.

[0055] Specifically, the sensor support portion 62 has a first portion 621 extending from the first sensor 61 toward the opening region Ar1 in the X-axis direction, a second portion 622 extending from the first sensor 61 to the opposite side of the opening region Ar1, and a third portion 623 that is disposed between the first portion 621 and the second portion 622 and corresponds to the first sensor 61. The first portion 621, the third portion 623, and the second portion 622 are aligned in order in the X-axis direction and are integral with each other. The sensor support portion 62 of this embodiment is in the form of a strip that is long in the X-axis direction and has a thickness direction in the Z-axis direction, and the first sensor 61 is attached to the lower surface of the third portion 623 via a plate member 64.

[0056] The sensor support part 62 has a constant dimension in the Y-axis direction at each position in the X-axis direction, and has an arc-shaped notch 623a in a third portion 623. The sensor support part 62 also has a plurality of support part through holes 621a (the number of which corresponds to the number of first fixing through holes 422 in the horizontal part 42 of the frame 4) in the first portion 621. These support part through holes 621a are each an elongated hole extending in the X-axis direction, and are arranged at intervals in the X-axis direction.

[0057] The extension portion 63 extends from an edge position P3 of the opening region Ar1 in the X-axis direction of the sensor support portion 62 or an inner position P4 of the opening region Ar1. The sensor support portion 62 of this embodiment extends to the inner position P4 in the X-axis direction, and the extension portion 63 extends from the tip of the sensor support portion 62 in a direction away from the frame 4 in the Z-axis direction (i.e., upward). The extension portion 63 is in the shape of a plate that extends in a plane perpendicular to the X-axis direction.

[0058] The plate member 64 is a member attached to the sensor support portion 62 with the first sensor 61 fixed thereto, and is a plate-like member extending in a plane direction perpendicular to the Z-axis direction. The first sensor 61 is fixed to the plate member 64 by a third fastening member F3, and the plate member 64 is fixed to the sensor support portion 62 by two second fastening members F2. Each of the fastening members F2 and F3 has a bolt and a nut that screws onto the bolt.

[0059] The open position sensor unit 6 configured as described above is positioned (fixed) with the first sensor 61 inserted into the second notch 421 (first sensor through hole 43) and the first portion 621 and the second portion 622 overlapping from above on the horizontal portion 42 on both sides of the notch 421 in the X-axis direction.

[0060] Specifically, the open position sensor unit 6 is fixed to the horizontal part 42 of the frame 4 by fourth fastening members F4, the number of which corresponds to the number of support part through holes 621a of the sensor support part 62. Each of the fourth fastening members F4 has a bolt inserted through the support part through hole 621a of the sensor support part 62 and the first fixing through hole 422 of the horizontal part 42, and a nut screwed onto the bolt.

[0061] With the sensor support part 62 fixed to the horizontal part 42, the support part through-hole 621a is an elongated hole extending in the X-axis direction, so that by loosening the nuts of each fourth fastening member F4, it is possible to change (adjust) the position of the sensor support part 62 (i.e., the first sensor 61) in the X-axis direction. In adjusting the position of the first sensor 61 in the X-axis direction, the sensor support part 62 slides in the X-axis direction while being superimposed on the horizontal part 42, so that only the position of the first sensor 61 in the X-axis direction is adjusted while the position of the first sensor 61 in the Z-axis direction remains fixed.

[0062] The closed position sensor unit 7 detects that the door section 2A has moved to the fully closed position P2 by the second sensor 71 detecting the opposing portion 51. The closed position sensor unit 7 has the second sensor 71 capable of detecting the detection target portion 5 (more specifically, the opposing portion 51). The closed position sensor unit 7 of this embodiment is constituted by the second sensor 71.

[0063] The second sensor 71 is a sensor capable of detecting the facing portion 51 in a non-contact manner, and is disposed at the upper end 4a of the frame 4. The second sensor 71 of the present embodiment detects the facing portion 51 (detected portion 5) when the detection surface 71a faces the facing portion 51 in a state in which the detection surface 71a is close to the facing portion 51 (with a slight gap therebetween).

[0064] The second sensor 71 is disposed in a position on the horizontal portion 42 corresponding to the detected portion 5 (more specifically, the facing portion 51) in the X-axis direction when the door portion 2A is in the fully closed position P2. The second sensor 71 of this embodiment is fixed to the lower surface 42a of the horizontal portion 42 (see Figs. 6 and 7). At this time, the second sensor 71 is fixed to the lower surface 42a of the horizontal portion 42 such that the position of the detection surface 71a in the Y-axis direction is the same as the position of the detection surface 61a of the first sensor 61 in the Y-axis direction. The second sensor 71 of this embodiment is a proximity sensor, and detects the facing portion 51 by positioning the facing portion 51 below the detection surface 71a of the second sensor 71.

[0065] The door drive unit 8 has a drive pulley 81, a motor unit 80 that rotates and drives the drive pulley 81, a driven pulley 84 that is arranged at a distance from the drive pulley 81 in the X-axis direction, and an endless belt 85 that is wound around the drive pulley 81 and the driven pulley 84.

[0066] The motor section 80 has a drive pulley 81 and a motor 83 having a drive shaft 82 that rotates the drive pulley 81, and is a drive source for moving the door section 2 in the X-axis direction (opening / closing direction).

[0067] In the elevator door device 1 configured as above, the first sensor 61, the second sensor 71, and the detection target portion 5 (specifically, the facing portion 51) are aligned as follows.

[0068] First, with the closed position sensor unit 7 (second sensor 71) attached to the horizontal portion 42 of the frame 4, the position of the detection target portion 5 (opposing portion 51) relative to the closed position sensor unit 7 is adjusted.

[0069] Specifically, when the door portion 2A is in the fully closed position P2, the nuts of each first fastening member F1 are loosened and the position of the first support portion 52 is adjusted (adjusted in the X-axis direction and the Z-axis direction) so that the opposing portion 51 faces the detection surface 71a of the second sensor 71 in a position close to the detection surface 71a of the second sensor 71. Once the opposing portion 51 is determined, the nuts of the first fastening members F1 are tightened, completing the positioning operation of the detection portion 5 relative to the closed position sensor portion 7 (second sensor 71).

[0070] Next, the position of the open position sensor part 6 (first sensor 61) is adjusted relative to the detection target part 5 (opposing part 51). Specifically, with the door part 2A in the fully open position P1, the position of the first sensor 61 in the X-axis direction relative to the detection target part 5 is adjusted by operating the sensor support part 62.

[0071] In detail, when the door section 2A is in the fully open position P1, the nuts of each fourth fastening member F4 are loosened so that the opposing portion 51 faces the detection surface 61a of the first sensor 61 in a position close to the detection surface 61a, and the position of the first sensor 61 relative to the opposing portion 51 is adjusted by sliding the sensor support portion 62 in the X-axis direction on the horizontal portion 42 while grasping the extension portion 63.

[0072] At this time, since the first sensor 61 and the second sensor 72 are positioned at the upper end 4a of the frame 4, their positions in the Z-axis direction are the same. Therefore, by adjusting only the position of the first sensor 61 in the X-axis direction (i.e., by moving (sliding) the sensor support portion 62 in the X-axis direction along the horizontal portion 42 while it is stacked on the horizontal portion 42), the position of the open position sensor portion 6 (first sensor 61) relative to the detected portion 5 (opposing portion 51) can be adjusted.

[0073] Then, when the position of the first sensor 61 in the X-axis direction is determined, the nut of the fourth fastening member F4 is tightened, and the positioning operation of the open position sensor unit 6 (first sensor 61) relative to the detection target unit 5 is completed.

[0074] The above elevator door device 1 has a door section 2 that opens and closes the entranceway 12, a door rail 3 that extends in the X-axis direction (the width direction of the entranceway 12) and guides the door section 2 in the X-axis direction, and is equipped with a frame 4 that extends in the X-axis direction at a position above the entranceway 12, a detectable section 5 that moves in the X-axis direction together with the door section 2, and an open position sensor section 6 that has a first sensor 61 that can detect the detectable section 5, and a sensor support section (support section) 62 that supports the first sensor 61 and extends in the X-axis direction. The detectable part 5 is arranged in the X-axis direction so as to be located outside the opening area Ar1 of the entrance / exit 12 when the door section 2A is in the fully open position P1, and the first sensor 61 is supported by the sensor support part 62 at a position corresponding to the detectable part 5 in the X-axis direction when the door section 2A is in the fully open position, and the sensor support part 62 extends from at least the first sensor 61 in the X-axis direction to the edge position P3 of the opening area Ar1 or an inner position P4 of the opening area Ar1, and is fixed to the frame 4 so as to be able to change its position in the X-axis direction.

[0075] In this door device 1, the sensor support portion 62 of the open position sensor unit 6 extends to the edge position P3 of the opening area Ar1 in the X-axis direction or to the inner position P4 of the opening area Ar1. Therefore, even when the door section 2A is in the fully open position P1, the position of the first sensor 61 relative to the detected portion 5 can be adjusted by moving the sensor support portion 62 in the X-axis direction relative to the frame 4, thereby making it easy to adjust the positions of the first sensor 61 and the detected portion 5.

[0076] Moreover, in the elevator door device 1 of this embodiment, the open position sensor unit 6 has an extension portion 63 that extends from the sensor support portion 62 in a direction intersecting the X-axis direction (width direction) and away from the frame 4. This allows an operator or the like to grasp and move the extension portion 63 when moving the sensor support portion 62 to adjust the position of the first sensor 61, making it easier to perform the work of adjusting the position.

[0077] In the elevator door device 1 of this embodiment, the extension portion 63 extends from an edge position P3 of the opening area Ar1 in the X-axis direction (width direction) or an inner position P4 of the opening area Ar1 in the sensor support portion 62. This makes it easier for an operator to hold the extension portion 63 when adjusting the position of the first sensor 61, making it easier to perform the work of adjusting the position.

[0078] Moreover, the elevator door device 1 of this embodiment includes a closed position sensor unit 7 having a second sensor 71 capable of detecting the detectable part 5. The detectable part 5 is disposed so as to be located inside the opening area Ar1 in the X-axis direction (width direction) when the door part 2A is in the fully closed position P2, and the second sensor 71 is disposed in a position on the frame 4 corresponding to the detectable part 5 in the X-axis direction when the door part 2A is in the fully closed position P2. In this manner, by adopting a configuration in which one detectable part 5 is detected by the first sensor 61 and the second sensor 71 disposed in different positions to detect that the door part 2A is in the fully open position P1 and the fully closed position P2, the number of detectable parts 5 can be reduced, i.e., the configuration can be simplified.

[0079] In the elevator door device 1 of this embodiment, the first sensor 61 and the second sensor 71 are proximity sensors capable of detecting the detected part 5 when they face the detected part 5 in the up-down direction, and are arranged at the same position in the Z-axis direction (up-down direction) on the frame 4, and the detected part 5 is fixed to the door part 2A so that its position in the Z-axis direction can be changed. Therefore, by adjusting the up-down position of the detected part 5 relative to either one of the first sensor 61 and the second sensor 71 (the second sensor 71 in the example of this embodiment), the up-down position of the detected part 5 relative to the other of the first sensor 61 and the second sensor 71 is adjusted (i.e., there is no need to adjust the up-down position of the detected part 5 relative to the other of the first sensor 61 and the second sensor 71), which makes it easier to adjust the positions of the first sensor 61, the second sensor 71, and the detected part 5.

[0080] Furthermore, in the elevator door device 1 of this embodiment, the frame 4 has an upper end 4a extending in the X-axis direction (width direction), and the first sensor 61 and the second sensor 71 are disposed at the upper end 4a of the frame 4. Therefore, by disposing the first sensor 61 and the second sensor 71 at the upper end 4a of the frame 4, their positions in the Z-axis direction (up-down direction) are the same, which facilitates the arrangement of the open position sensor unit 6 and the closed position sensor unit 7 on the frame.

[0081] Furthermore, in the elevator door device 1 of this embodiment, the frame 4 has a vertical portion 41 extending in the Z-axis direction (up and down direction) and also extending in the X-axis direction (width direction), and a horizontal portion 42 extending from an upper end 41a of the vertical portion 41 in the Y-axis direction (normal direction of the vertical portion 41) and also extending in the X-axis direction, and the horizontal portion 42 has a through hole or notch (in the example of this embodiment, a second notch 421) that penetrates in the Z-axis direction at a position corresponding to the first sensor 61. The sensor support portion 62 has, in the X-axis direction, a first portion 621 extending from the first sensor 61 toward the opening region Ar1, and a second portion 622 extending from the first sensor 61 to the side opposite the opening region Ar1. With the first sensor 61 inserted into a through hole or notch (in this embodiment, second notch 421), the open position sensor portion 6 is arranged with the first portion 621 and the second portion 622 overlapping from above the horizontal portion 42 on both sides of the through hole or notch (in this embodiment, second notch 421) in the X-axis direction.

[0082] In this way, in the X-axis direction, the portions (first portion 621 and second portion 622) on either side of the through hole or notch (in this embodiment, second notch 421) in the sensor support portion 62 are overlapped on the horizontal portion 42 of the frame 4, thereby effectively suppressing movement (vibration, shaking, etc.) of the first sensor 61 in the Z-axis direction.

[0083] In addition, the positioning method of the sensor units 6, 7 and the detectable part 5 in the elevator door device 1 of this embodiment includes adjusting the position of the detectable part 5 in the Z-axis direction (up and down direction) relative to the second sensor 71 when the door part 2A is in the fully closed position P2, and, after adjusting the position in the Z-axis direction, adjusting the position of the first sensor 61 in the X-axis direction (width direction) relative to the detectable part 5 by operating the sensor support part 62 when the door part 2A is in the fully open position P1.

[0084] According to this positioning method, by adjusting the Z-axis position of the detectable part 5 relative to the second sensor 71, the Z-axis position of the detectable part 5 relative to the first sensor 61 is adjusted (i.e., there is no need to adjust the vertical position of the detectable part 5 relative to the first sensor 61), making it easier to adjust the positions of the first sensor 61, the second sensor 71, and the detectable part 5.

[0085] The elevator door device and the method for positioning the sensor unit and the detected unit in the elevator door device of the present invention are not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the present invention. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Furthermore, part of the configuration of one embodiment can be deleted.

[0086] The elevator door device 1 in the above embodiment is arranged at the car entrance 12, but is not limited to this configuration. The elevator door device 1 may be arranged at a landing side entrance through which people enter and exit the car from the landing.

[0087] Further, in the elevator door device 1 of the above embodiment, the open position sensor unit 6 has the extension portion 63, but the extension portion 63 may be omitted.

[0088] In addition, the first portion 621 of the sensor support portion 62 in the above embodiment is a strip-shaped plate with its thickness direction in the Z-axis direction and extending in the X-axis direction, but is not limited to this configuration. The first portion 621 may extend along the horizontal portion 42 at least from the first sensor 61 to the edge position P3 of the opening region Ar1 or the inner position P4 of the opening region Ar1.

[0089] Furthermore, the extension portion 63 in the above embodiment is a plate-like shape that extends in the Z-axis direction from the end of the sensor support portion 62 and spreads in a planar direction perpendicular to the X-axis direction, but is not limited to this configuration. The extension portion 63 may extend in a direction inclined relative to the horizontal portion 42. The extension portion 63 may be a plate-like shape (for example, an upright portion of an angle) that spreads in a planar direction perpendicular to the Y-axis direction, or may be a rod-like shape, or may be a convex portion protruding from the upper surface of the sensor support portion 62. In other words, the extension portion 63 may have a shape that is easy for an operator to grasp.

[0090] Furthermore, the member for fixing the sensor support portion 62 to the horizontal portion 42 is not limited to a bolt and a nut. The member for fixing the sensor support portion 62 to the horizontal portion 42 is not limited as long as it is configured to allow adjustment of the position of the sensor support portion 62 (specifically, the first sensor 61) in the X-axis direction.

[0091] In addition, although the sensors 61, 71 in the open position sensor unit 6 and the closed position sensor unit 7 in the above embodiment are proximity sensors, the present invention is not limited to this configuration. The sensors 61, 71 in the open position sensor unit 6 and the closed position sensor unit 7 may be any sensor capable of detecting that the detection target unit 5 has moved to a predetermined position in the X-axis direction in a non-contact manner, such as a photoelectric sensor, a laser sensor, or an infrared sensor.

[0092] Furthermore, in the elevator door device 1 of the above embodiment, when the door section 2 is in the fully open position P1 or the fully closed position P2, the detected portion 5 (facing portion 51 in the above embodiment) is detected when it is positioned below the sensors 61, 71 and faces them in the vertical direction, but this configuration is not limited. When the detected portion 5 is detected by the sensors 61, 71, the positions of the detected portion 5 may be upside down, or the detected portion may face them in the horizontal direction, etc. In other words, the facing directions of the detected portion 5 when detected by the sensors 61, 71 are not limited.

[0093] In addition, in the elevator door device 1 of the above embodiment, the detected part 5 is attached to the bracket 23, but the present invention is not limited to this configuration. The detected part 5 may be attached to the door panel 21, the door hanger 22, or the like. In other words, the detected part 5 may be attached to any part of the door part 2 so as to move together with the door part 2. [Explanation of symbols]

[0094] 1...door device (elevator door device), 2...door section, 2A...one door section, 21...door panel, 22...door hanger, 220...hanger body, 221...first roller, 221a...first rotating shaft, 222...second roller, 222a...second rotating shaft, 23...bracket, 231...bracket through hole, 3...door rail, 4...frame, 4a...upper end of frame, 41...vertical section, 41a...upper end of vertical section, 411...first notch, 412...second sensor through hole, 42...horizontal portion, 42a...lower surface of horizontal portion, 421...second notch, 422...first fixing through hole, 423...second fixing through hole, 43...first sensor through hole, 5...detected portion, 51...facing portion, 52...first support portion, 521...first support portion through hole, 6...open position sensor portion, 61...first sensor, 61a...detection surface, 62...sensor support portion (support portion), 621...first One part, 621a...support part through hole, 622...second part, 623...third part, 63...extension part, 64, plate member 7...closed position sensor part, 71...second sensor, 71a...detection surface, 8...door drive part, 80...motor part, 81...drive pulley, 82...drive shaft, 83...motor, 84...driven pulley, 85...endless belt, 10...car, 11...car body, 12...entrance, 100...door device, 101...car entrance, 102...car door, 102A...door hanger, 102B...door panel, 102C...bracket, 103...door rail, 104...frame, 105...detection target part, 106...magnetic proximity sensor, Ar1, Ar2...opening area, B...bolt, F1...first fastening member, F2...second fastening member, F3...third fastening member, F4...fourth fastening member, P1...fully open position, P2...fully closed position, P3...edge position, P4...inner position

Claims

1. A door section for opening and closing the entrance; a frame extending in the width direction of the entrance and having a door rail that guides the door portion in the width direction, the frame extending in the width direction at a position above the entrance; a detection target portion that moves together with the door portion in the width direction; an open position sensor unit including a first sensor capable of detecting the detection portion and a support portion supporting the first sensor and extending in the width direction; the detection portion is disposed so as to be located outside an opening area of ​​the entrance when the door portion is in a fully open position in the width direction, the first sensor is supported by the support portion at a position corresponding to the detected portion in the width direction when the door portion is in a fully open position, an elevator door device, wherein the support portion extends from at least the first sensor in the width direction to an edge position of the opening region or an inner position of the opening region, and is fixed to the frame so that its position in the width direction is changeable.

2. 2. The elevator door apparatus according to claim 1, wherein the open position sensor portion has an extension portion extending from the support portion in a direction intersecting the width direction and away from the frame.

3. The elevator door device according to claim 2 , wherein the extension portion extends from an edge position of the opening region in the width direction of the support portion or from an inner position of the opening region.

4. a closed position sensor unit having a second sensor capable of detecting the detection target portion, the detection target portion is disposed so as to be located inside the opening area in the width direction when the door portion is in a fully closed position, 4. The elevator door device according to claim 1, wherein the second sensor is disposed on the frame at a position corresponding to the detected portion in the width direction when the door section is in a fully closed position.

5. the first sensor and the second sensor are proximity sensors that can detect the detection target portion when facing the detection target portion in the up-down direction, and are disposed at the same position in the up-down direction on the frame, The elevator door device according to claim 4 , wherein the detected part is fixed to the door part so that its position in the vertical direction can be changed.

6. The frame has an upper end extending in the width direction, The elevator door apparatus according to claim 5 , wherein the first sensor and the second sensor are disposed at the upper end of the frame.

7. The frame has a vertical portion extending in the up-down direction and also in the width direction, and a horizontal portion extending from an upper end of the vertical portion in a normal direction to the vertical portion and also in the width direction, the horizontal portion has a through hole or a notch penetrating in the up-down direction at a position corresponding to the first sensor, the support portion has a first portion extending from the first sensor toward the opening region in the width direction and a second portion extending from the first sensor to a side opposite the opening region, The elevator door device according to any one of claims 1 to 3, wherein the open position sensor unit is arranged with the first sensor inserted into the through hole or the notch, and the first portion and the second portion are overlapped from above on both sides of the through hole or the notch in the width direction.

8. A door section for opening and closing the entrance; a frame extending in the width direction of the entrance and having a door rail that guides the door portion in the width direction, the frame extending in the width direction at a position above the entrance; a detection target portion that moves together with the door portion in the width direction; an open position sensor unit including a first sensor capable of detecting the detection portion and a support portion supporting the first sensor and extending in the width direction; a closed position sensor unit having a second sensor capable of detecting the detection target portion, the detected portion is disposed so as to be located outside an opening area of ​​the entrance when the door portion is in a fully open position, in the width direction, and to be located inside the opening area in the width direction when the door portion is in a fully closed position, and is fixed to the door portion so as to be changeable in its position in the up-down direction; the first sensor is supported by the support portion at a position corresponding to the detected portion in the width direction when the door portion is in a fully open position, the support portion extends from at least the first sensor in the width direction to an edge position of the opening region or an inner position of the opening region, and is fixed to the frame so as to be able to change a position of the first sensor in the width direction; the second sensor is disposed on the frame at a position corresponding to the detected portion in the width direction when the door portion is in a fully closed position, the first sensor and the second sensor are proximity sensors capable of detecting the detection target when facing the detection target in the up-down direction, and are arranged at the same position in the up-down direction on the frame; adjusting a position of the detection target portion in the up-down direction relative to the second sensor in a state where the door portion is in a fully closed position; and after adjusting the vertical position, adjusting the widthwise position of the first sensor relative to the detected part by operating the support part while the door part is in a fully open position.

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