Elevator landing door device

Abstract

To provide an elevator landing door apparatus in which a connector can be protected from water penetration without covering the connector with a case.SOLUTION: An elevator landing door apparatus comprises: a rail frame; a door lock switch; and a wiring fixing bracket attached to the rail frame to connect switch wiring connected to the door lock switch and wiring in a tower connected to a control panel installed in a hoistway using a connector and fix them. The wiring fixing bracket integrally has a first plate-like part fixed to the rail frame, a second plate-like part folded at an end of the first plate-like part and placed vertically, and a third plate-like part folded below the first plate-like part. The connector is arranged on the third plate-like part, and the switch wiring and the wiring in the tower are connected to the connector from below the third plate-like part.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an elevator landing door device. [Background technology]

[0002] Generally, an elevator landing door device is equipped with a door lock switch that detects the locking and unlocking of the landing door (see, for example, Patent Document 1). The door lock switch is electrically connected to a control panel of the elevator via wiring. As shown in FIG. 8, the door lock switch and the control panel are electrically connected by connecting, via a connector 103, intra-tower wiring 101 that is connected to a control panel (not shown) in the hoistway and a switch wiring 102 that is connected to the door lock switch. As also shown in FIG. 9, the connector 103 is attached to a wiring fixing bracket 104 that the landing door device is provided with, and the wiring fixing bracket 104 is attached to a rail frame 105 that the landing door device is provided with. The door lock switch 106 is attached to the rail frame 105 via, for example, a guide rail and a bracket (not shown). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-155572 Summary of the Invention [Problem to be solved by the invention]

[0004] In a conventional elevator landing door device, as shown in Fig. 10, there is a concern that water running down a wall surface 107 of the elevator shaft may seep into connector 103, along the surface of rail frame 105 or wiring fixing bracket 104, as indicated by the arrows in the figure, and cause poor contact. Also, as shown in Fig. 11, if in-tower wiring 101 is close to or in contact with rail frame 105 or wiring fixing bracket 104, water may seep into connector 103 from rail frame 105 or wiring fixing bracket 104, along in-tower wiring 101, and cause poor contact.

[0005] Therefore, in order to protect the connector 103 from water intrusion, it is conceivable to adopt a structure in which a case 108 is attached to the wiring fixing bracket 104, the case 108 covers the connector 103, and the in-tower wiring 101 and the switch wiring 102 are connected from the bottom of the case 108 toward the connector 103, as shown in Figure 12. However, if this structure is adopted, the addition of the case 108 increases the number of parts. In this specification, "water" can be replaced with "liquid."

[0006] An object of the present invention is to provide an elevator landing door device that can protect a connector that connects an in-tower wiring and a switch wiring from water intrusion without covering the connector with a case. [Means for solving the problem]

[0007] In order to solve the above problems, for example, the configurations described in the claims are adopted. The present application includes multiple means for solving the above-mentioned problems. One example is an elevator landing door device including a rail frame on which a door rail that guides the movement of the landing doors is attached, a door lock switch that detects the locking and unlocking of the landing doors, and a wiring fixing bracket attached to the rail frame for connecting and fixing switch wiring connected to the door lock switch and in-tower wiring connected to a control panel installed in the hoistway via a connector. The wiring fixing bracket integrally includes a first plate-shaped portion fixed to the rail frame, a second plate-shaped portion bent at an end of the first plate-shaped portion and positioned vertically, and a third plate-shaped portion bent at a position below the first plate-shaped portion and away from the path of water running down the surface of the second plate-shaped portion. The tip end of the third plate-shaped portion is positioned at the same height as or higher than the base end of the third plate-shaped portion. A connector is attached to the third plate-shaped portion, and the switch wiring and in-tower wiring are connected to the connector below the third plate-shaped portion. [Effects of the Invention]

[0008] According to the present invention, the connector that connects the in-tower wiring and the switch wiring can be protected from water intrusion without covering the connector with a case. Problems, configurations, and effects other than those described above will become apparent from the following description of the embodiments. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view of an elevator hall door device according to a first embodiment. FIG. [Figure 2] 1 is a partially enlarged front view of an elevator hall door device according to a first embodiment. FIG. [Figure 3] 1 is an enlarged side view of a portion of an elevator landing door device according to a first embodiment. FIG. [Figure 4] 10 is an enlarged view illustrating the connector mounting structure on the third plate-shaped portion. FIG. [Figure 5] FIG. 2 is a diagram illustrating a water movement path in the first embodiment. [Figure 6] FIG. 10 is a front view showing the structure of a wiring fixing bracket provided in an elevator landing door device according to a second embodiment. [Figure 7] FIG. 10 is a side view showing the structure of a wiring fixing bracket provided in an elevator landing door device according to a second embodiment. [Figure 8] FIG. 1 is an enlarged side view of a portion of a conventional elevator landing door device. [Figure 9] FIG. 1 is an enlarged side view of a portion of a conventional elevator landing door device. [Figure 10] FIG. 1 is a diagram (part 1) illustrating the water movement path in a conventional example. [Figure 11] FIG. 10 is a diagram (part 2) illustrating the water movement path in a conventional example. [Figure 12] FIG. 10 is a diagram showing the connector covered with a case. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In this specification and the drawings, elements having substantially the same functions or configurations are designated by the same reference numerals, and redundant description will be omitted.

[0011] First Embodiment FIG. 1 is a front view of an elevator hall door device according to a first embodiment. As shown in FIG. 1, an elevator landing door device 10 includes a jamb 11, landing doors 12 that open and close entrances formed within the frames of the jamb 11, a rail frame 14 to which door rails 13 that guide the movement of the landing doors 12 are attached, a door hanger 16 that has hanger rollers 15 that move while rotating on the door rails 13 and supports the landing doors 12 in a suspended state, a door lock switch 17 that detects the locking and unlocking of the landing doors 12, a wiring fixing bracket 18 that is attached to the rail frame 14, and a sill 19 that has a groove that guides the movement of the landing doors 12.

[0012] The landing door 12 is composed of two door panels, and each door panel moves at a predetermined speed ratio in the left and right directions in Fig. 1 to open and close the entrance to the landing. Fig. 1 shows the landing door 12 in a closed state.

[0013] The rail frame 14 is an elongated member that is long in the movement direction (opening / closing direction) of the landing door 12. Although not shown, the rail frame 14 is attached to the wall surface of the elevator shaft using brackets, bolts, etc.

[0014] The door lock switch 17 is disposed on one end side in the longitudinal direction of the rail frame 14. The door lock switch 17 detects a state in which the door hook 20 is engaged with a door lock claw (not shown) as a locked state of the landing door 12, and detects a state in which the door hook 20 is disengaged from the door lock claw as an unlocked state of the landing door 12. The door lock switch 17 outputs a detection signal that is turned on when detecting a locked state of the landing door 12, and is turned off when detecting an unlocked state of the landing door 12, for example.

[0015] The door lock switch 17 is attached to the rail frame 14 via, for example, the door rail 13 and a switch mounting bracket (not shown). The door hook 20 is rotatably attached to the door hanger 16 and moves together with the door hanger 16. The door lock claw is attached to the rail frame 14 together with the door lock switch 17.

[0016] Fig. 2 is a partially enlarged front view of the elevator landing door device according to the first embodiment, and Fig. 3 is a partially enlarged side view of the elevator landing door device according to the first embodiment. Fig. 3 shows the wiring fixing bracket 18 and the like as viewed from the longitudinal direction of the rail frame 14.

[0017] As shown in Figures 2 and 3, the rail frame 14 has an upper plate portion 21 and a lower plate portion 22 that are integral with each other. The rail frame 14 is an integral structure obtained, for example, by pressing (shearing, bending, etc.) a single metal plate. The upper plate portion 21 is disposed horizontally. The lower plate portion 22 is bent at a right angle from the upper plate portion 21. The lower plate portion 22 is disposed vertically.

[0018] The wiring fixing bracket 18 is a bracket for connecting and fixing the switch wiring 31 connected to the door lock switch 17 and the in-tower wiring 32 connected to the control panel (not shown) with a connector 33. The switch wiring 31 is drawn out from the door lock switch 17 to output the detection signal described above. The control panel is a device that controls the elevator overall. The control panel is installed at the top of the hoistway (for example, in a machine room, etc.).

[0019] The wiring fixing bracket 18 integrally comprises a first plate-shaped portion 25 fixed to the rail frame 14, a second plate-shaped portion 26 bent at an end of the first plate-shaped portion 25, and a third plate-shaped portion 27 bent below the first plate-shaped portion 25. The wiring fixing bracket 18 is an integral structure obtained, for example, by pressing (shearing, bending, etc.) a single metal plate.

[0020] The first plate-shaped portion 25 is disposed horizontally. The first plate-shaped portion 25 is placed on the upper plate portion 21 of the rail frame 14 and fixed to the rail frame 14 by fixing bolts or the like (not shown).

[0021] The second plate-shaped portion 26 is bent at a right angle at an end of the first plate-shaped portion 25. The second plate-shaped portion 26 is disposed vertically in a state facing the lower plate portion 22 of the rail frame 14.

[0022] 3, the third plate-shaped portion 27 is bent so as to protrude in the same direction as the first plate-shaped portion 25 when viewed from the longitudinal direction of the rail frame 14. As a result, the space above the third plate-shaped portion 27 is covered by the upper plate portion 21 of the rail frame 14.

[0023] The third plate-shaped portion 27 is disposed at a position closer to the door lock switch 17 than the first plate-shaped portion 25 in the longitudinal direction of the rail frame 14. The third plate-shaped portion 27 is also disposed at a position away from the path of water running down the surface of the second plate-shaped portion 26 (the path indicated by the dashed arrow in FIG. 2). A drain groove 28 (FIG. 2) is formed at the boundary between the second plate-shaped portion 26 and the third plate-shaped portion 27. The drain groove 28 is a groove that prevents water running down the surface of the second plate-shaped portion 26 from running down to the third plate-shaped portion 27.

[0024] 3, the third plate-shaped portion 27 is inclined with respect to the horizontal plane so that a tip end 27a of the third plate-shaped portion 27 is positioned higher than a base end 27b of the third plate-shaped portion 27. The bending angle θ of the third plate-shaped portion 27 based on the second plate-shaped portion 26 is an angle greater than 90 degrees and less than 180 degrees, i.e., an obtuse angle. This bending angle θ is defined as the angle formed by the lower surface of the third plate-shaped portion 27 with respect to the surface of the second plate-shaped portion 26 as a reference plane.

[0025] The connector 33 is disposed on the upper surface side of the third plate-shaped portion 27 of the wiring fixing bracket 18. The connector 33 is supported by a connector support member 35 (details of which will be described later) in a state where it is floating above the upper surface of the third plate-shaped portion 27. In contrast, the switch wiring 31 and the in-tower wiring 32 are connected to the connector 33 from below the third plate-shaped portion 27.

[0026] 2, the switch wiring 31 is fastened to the wiring fixing bracket 18 by wiring fasteners 36 and 37. The wiring fastener 36 is disposed below the wiring fastener 37. The wiring fastener 37 is disposed on one end side of the third plate-shaped portion 27 in the longitudinal direction of the rail frame 14. The switch wiring 31 drawn out from the door lock switch 17 passes through the wiring fastener 36 and the wiring fastener 37 in this order and extends to the connector 33.

[0027] The intra-tower wiring 32 is fastened to the wiring fixing bracket 18 by wiring fasteners 38, 39. The wiring fastener 38 is disposed lower than the wiring fastener 39. The wiring fastener 39 is disposed on the other end side of the third plate-shaped portion 27 in the longitudinal direction of the rail frame 14 (the side opposite to the wiring fastener 37). The intra-tower wiring 32 drawn out from the control panel is extended along the wall surface of the hoistway to the rail frame 14 and the wiring fixing bracket 18 of the landing door device 10, and then extends to the connector 33 via the wiring fastener 38 and the wiring fastener 39 in this order. In addition, the excess length portion of the intra-tower wiring 32 is fastened to the second plate-shaped portion 26 of the wiring fixing bracket 18 by the wiring fastener 38.

[0028] FIG. 4 is an enlarged view illustrating the connector mounting structure on the third plate-shaped portion. 4, the connector 33 is disposed on the upper surface 271 side of the third plate-shaped portion 27, and is supported by a plurality of (two in the illustrated example) connector support members 35. The connector support members 35 are disposed on both sides of the connector 33, with the connector 33 sandwiched therebetween.

[0029] The connector support member 35 has a clip portion 35a, a spacer portion 35b, and a bundling portion 35c. The clip portion 35a has appropriate radial flexibility and is engaged with the lower surface 272 of the third plate-shaped portion 27 through a through-hole 29 provided in the third plate-shaped portion 27. The spacer portion 35b is disposed between the clip portion 35a and the bundling portion 35c. The spacer portion 35b is disposed so as to sandwich the third plate-shaped portion 27 between the clip portion 35a and the spacer portion 35b. The spacer portion 35b has a predetermined height T, which ensures a predetermined space between the upper surface 271 of the third plate-shaped portion 27 and the connector 33. The connector 33 is disposed in a floating state above the upper surface 271 of the third plate-shaped portion 27, corresponding to the height T of the spacer portion 35b. The bundling portion 35c is a portion for bundling the switch wiring 31 and the in-tower wiring 32 together.

[0030] In the elevator landing door device 10 according to the first embodiment described above, the wiring fixing bracket 18 is configured such that a third plate-shaped portion 27 is formed by bending the third plate-shaped portion 27 below the first plate-shaped portion 25 and away from the path of water running down the surface of the second plate-shaped portion 26, a connector 33 is disposed on the third plate-shaped portion 27, and the switch wiring 31 and the in-tower wiring 32 are connected to the connector 33 from below the third plate-shaped portion 27. As a result, as shown in FIG. 5 , water moving down the wall surface 40 of the hoistway flows down the surface of the rail frame 14 and the surface of the wiring fixing bracket 18, as indicated by the arrows in the figure, without passing through the third plate-shaped portion 27. This allows the connector 33 connecting the switch wiring 31 and the in-tower wiring 32 to be protected from water intrusion even without being covered with a case. Furthermore, since the case is no longer necessary, the equipment costs required to purchase the case can be reduced, and the work of fixing the wiring to the case and the work of fixing the case to the wiring fixing bracket 18 can be reduced.

[0031] Furthermore, in the landing door device 10 according to the first embodiment, the third plate-shaped portion 27 is inclined with respect to the horizontal plane so that the tip end 27a is positioned higher than the base end 27b. As a result, even if water moving along the surface of the wiring fixing bracket 18 reaches the base end 27b of the third plate-shaped portion 27, the inclination of the third plate-shaped portion 27 can suppress the movement of the water from the base end 27b toward the tip end 27a of the third plate-shaped portion 27.

[0032] Moreover, the landing door device 10 according to the first embodiment includes a connector support member 35 that supports the connector 33 in a floating state above the upper surface 271 of the third plate-shaped portion 27. This makes it possible to prevent the connector 33 from coming into contact with the water even if water (water droplets, a water film, etc.) is present on the upper surface 271 of the third plate-shaped portion 27.

[0033] Moreover, in the landing door device 10 according to the first embodiment, the third plate-shaped portion 27 is bent so as to protrude in the same direction as the first plate-shaped portion 25 when viewed from the longitudinal direction of the rail frame 14. As a result, the upper plate portion 21 of the rail frame 14 and the first plate-shaped portion 25 of the wiring fixing bracket 18, which are arranged above the third plate-shaped portion 27, function as a so-called umbrella, which is advantageous in terms of drip prevention.

[0034] Furthermore, in the landing door device 10 according to the first embodiment, a drain groove 28 is formed at the boundary between the second plate-shaped portion 26 and the third plate-shaped portion 27. This makes it possible to more reliably prevent water from entering from the second plate-shaped portion 26 to the third plate-shaped portion 27.

[0035] Furthermore, in the landing door device 10 according to the first embodiment, the third plate-shaped portion 27 is disposed at a position closer to the door lock switch 17 than the first plate-shaped portion 25. This allows the connector 33 to be disposed near the standing position of the worker, which is set near the elevator entrance, when the worker connects the switch wiring 31 and the in-tower wiring 32 using the connector 33. This improves the visibility and ease of installation of the connector connection work.

[0036] Second Embodiment The landing door device according to the second embodiment differs from the first embodiment in the configuration of the wiring fixing bracket. Fig. 6 is a front view showing the structure of a wiring fixing bracket provided in an elevator landing door device according to a second embodiment, and Fig. 7 is a side view showing the structure of a wiring fixing bracket provided in an elevator landing door device according to a second embodiment. Fig. 7 shows the wiring fixing bracket as viewed from the longitudinal direction of the rail frame.

[0037] As shown in Figures 6 and 7, the wiring fixing bracket 18A is a bracket that integrally comprises a first plate-shaped portion 25A that is fixed to a rail frame (not shown), a second plate-shaped portion 26A that is bent at the end of the first plate-shaped portion 25A, and a third plate-shaped portion 27A that is bent below the first plate-shaped portion 25A.

[0038] The first plate-shaped portion 25A is disposed horizontally. The first plate-shaped portion 25A is placed on the rail frame in the same manner as in the first embodiment, and is fixed to the rail frame with fixing bolts or the like (not shown).

[0039] The second plate-shaped portion 26A is bent at a right angle at an end of the first plate-shaped portion 25A. The second plate-shaped portion 26A is disposed vertically facing the lower plate portion of the rail frame, similar to the first embodiment.

[0040] The third plate-shaped portion 27A is inclined relative to the horizontal plane, as in the first embodiment. The third plate-shaped portion 27A is formed below the first plate-shaped portion 25A (directly below in the illustrated example) and is narrower than the first plate-shaped portion 25A. Specifically, as shown in FIG. 6, the third plate-shaped portion 27A is bent so as to protrude in the same direction as the first plate-shaped portion 25A, with the center of the second plate-shaped portion 26A hollowed out. The third plate-shaped portion 27A is positioned away from the path of water running down the surface of the second plate-shaped portion 26A (the path indicated by the two-dot chain arrow in FIG. 6). A drainage groove 28A (FIG. 6) is formed at the boundary between the second plate-shaped portion 26A and the third plate-shaped portion 27A.

[0041] The connector mounting structure and wiring layout are basically the same as those in the first embodiment, and therefore will not be described here.

[0042] In the second embodiment described above, the third plate-shaped portion 27A is formed below the first plate-shaped portion 25A and is narrower than the first plate-shaped portion 25A, which allows the size of the wiring fixing bracket 18A to be smaller than in the first embodiment described above.

[0043] <Modifications, etc.> The present invention is not limited to the above-described embodiments and includes various modifications. For example, the above-described embodiments have been described in detail to facilitate understanding of the present invention, but the present invention is not necessarily limited to those including all of the configurations described in the above-described embodiments. Furthermore, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment. It is also possible to add the configuration of another embodiment to the configuration of one embodiment. It is also possible to delete part of the configuration of each embodiment, add other configurations, or replace it with other configurations.

[0044] Furthermore, in the above embodiment, as a preferred example, a configuration in which the third plate-shaped portion 27 of the wiring fixing bracket 18 is inclined with respect to the horizontal plane is adopted, but this is not limited to this, and a configuration in which the tip end 27a of the third plate-shaped portion 27 is positioned at the same height as the base end 27b, that is, a configuration in which the third plate-shaped portion 27 is positioned horizontally, may also be adopted.

[0045] Furthermore, in the above embodiment, as a preferred example, the third plate-shaped portion 27 is bent so as to protrude in the same direction as the first plate-shaped portion 25 when viewed from the longitudinal direction of the rail frame 14, but this is not limited to this, and the third plate-shaped portion 27 may also be bent so as to protrude in the opposite direction to the first plate-shaped portion 25.

[0046] Furthermore, in the above embodiment, the first plate-shaped portion 25 of the wiring fixing bracket 18 is superimposed on the upper plate portion 21 of the rail frame 14, but this is not limited to this, and the configuration may also be such that the first plate-shaped portion 25 of the wiring fixing bracket 18 is superimposed below the upper plate portion 21 of the rail frame 14. [Explanation of symbols]

[0047] DESCRIPTION OF SYMBOLS 10...Landing door device, 12...Landing door, 13...Door rail, 14...Rail frame, 17...Door lock switch, 18, 18A...Wiring fixing bracket, 21...Upper plate portion, 25, 25A...First plate-shaped portion, 26, 26A...Second plate-shaped portion, 27, 27A...Third plate-shaped portion, 27a...Tip portion, 27b...Base end portion, 28, 28A...Drain groove, 31...Switch wiring, 32...Inside tower wiring, 33...Connector, 35...Connector support member

Claims

1. a rail frame on which a door rail that guides the movement of the landing door is attached; a door lock switch that detects locking and unlocking of the landing door; a wiring fixing bracket attached to the rail frame for connecting and fixing a switch wiring connected to the door lock switch and an in-tower wiring connected to a control panel installed in the elevator shaft by a connector; An elevator landing door device comprising: The wiring fixing bracket is a first plate-shaped portion fixed to the rail frame; a second plate-shaped portion bent at an end of the first plate-shaped portion and disposed vertically; a third plate-shaped portion bent below the first plate-shaped portion and at a position away from a path of water flowing down the surface of the second plate-shaped portion; It has these in one piece, a tip end of the third plate-shaped portion is disposed at the same height as or higher than a base end of the third plate-shaped portion; the connector is disposed on the third plate-shaped portion, The switch wiring and the in-tower wiring are connected to the connector from below the third plate-shaped portion. Elevator landing door device.

2. The third plate-shaped portion is inclined with respect to a horizontal plane so that the tip end is positioned higher than the base end. The elevator landing door device according to claim 1.

3. The connector supporting member is further provided to support the connector in a floating state above the upper surface of the third plate-shaped portion. The elevator landing door device according to claim 1.

4. The rail frame has an upper plate portion that is horizontally disposed, the first plate-shaped portion is fixed to the rail frame in a state where it is overlapped with the upper plate-shaped portion, The third plate-shaped portion is bent so as to protrude in the same direction as the first plate-shaped portion when viewed from the longitudinal direction of the rail frame. The elevator landing door device according to claim 1.

5. A drain groove is formed at the boundary between the second plate-shaped portion and the third plate-shaped portion. The elevator landing door device according to claim 1.

6. The third plate-shaped portion is disposed closer to the door lock switch than the first plate-shaped portion. The elevator landing door device according to claim 1.

7. The third plate-shaped portion is formed below the first plate-shaped portion and is narrower than the first plate-shaped portion. The elevator landing door device according to claim 1.

Images