Closer weight device and elevator

Abstract

To provide a closer weight device and an elevator capable of easily confirming the connecting state of connecting rods.SOLUTION: A closer weight device 20 includes a cylindrical weight guide 21, a closer weight 22, a connecting rod 26, and a closer rope 23. The closer weight 22 has a weight 31, a plurality of weight shoes 34 fixed to the ends of the weight 31 and sliding through the cylindrical holes of the weight guide 21, and a connecting plate 33 that connects the plurality of weight shoes 34 at intervals and to which the connecting rod 26 is fixed. The end part of the connecting rod 26 fixed to the connecting plate 33 is exposed between the plurality of weight shoes 34.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a closer weight device and an elevator. [Background technology]

[0002] Generally, elevator doors installed at elevator halls are provided with a closer weight device that applies a load in the door closing direction. For example, Patent Document 1 discloses such a closer weight device.

[0003] The technology described in Patent Document 1 describes a movement mechanism in which a wire is attached to the upper part of the landing door and the wire is pulled by the weight of a pulley to apply a force to the landing door to move it to a closed position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-107012 A Summary of the Invention [Problem to be solved by the invention]

[0005] The closer weight and the closer rope are connected via a connecting rod. The connecting rod is then fixed to a weight shoe provided on the closer weight. However, since the end of the connecting rod on the weight side is hidden by the weight shoe, it is difficult to confirm whether the connecting rod is attached or not.

[0006] In consideration of the above problems, the present invention provides a closer weight device and an elevator that can easily check the connection state of a connecting rod. [Means for solving the problem]

[0007] In order to solve the above problems and achieve the present object, the closer weight device applies a load to an elevator landing door in the door closing direction. The closer weight device includes a cylindrical weight guide, a closer weight that slides in a cylindrical hole of the weight guide, a connecting rod fixed to the closer weight, and a closer rope connected to the closer weight via the connecting rod. The closer weight includes a weight that serves as a weight, a plurality of weight shoes that are fixed to the end of the weight and slide in a cylindrical hole of the weight guide, and a connecting plate that connects the plurality of weight shoes with a gap therebetween and to which the connecting rod is fixed. The end of the connecting rod that is fixed to the connecting plate is exposed between the plurality of weight shoes.

[0008] The elevator is also equipped with the above-mentioned closer weight device. Effect of the Invention

[0009] According to the closer weight device and elevator having the above configuration, the connection state of the connecting rod can be easily confirmed. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a front view of an elevator hall door according to an embodiment, as viewed from the elevator shaft side. [Diagram 2] 2A, 2B, and 2C show a closer weight of an elevator according to an embodiment of the present invention, in which FIG. 2A is a top view, FIG. 2B is a front view, and FIG. 2C is a side view. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a smoke suppression device and an elevator according to an embodiment will be described with reference to Fig. 1 to Fig. 2C. In addition, the same reference numerals are used to designate common members in each drawing.

[0012] 1. Elevator configuration First, the configuration of an elevator according to an embodiment (hereinafter, referred to as "this example") will be described with reference to FIG. FIG. 1 is a schematic diagram showing an example of the configuration of the elevator of this embodiment.

[0013] The elevator 1 of this example has a car that moves up and down in a hoistway formed in an architectural structure and carries people and luggage. At the landing where the car stops on each floor of the architectural structure, an entrance is provided for people and goods to enter and exit the car. As shown in Fig. 1, this entrance is provided with a landing door 11, a landing side door unit 12, and a landing side door sill 14.

[0014] The landing side door unit 12 is disposed at the upper end in the up-down direction of the entrance. The landing side door unit 12 also has a door rail 13 and a door hanger 15. The door rail 13 extends along the opening and closing direction of the landing door 11. A roller provided on the door hanger 15 slides on the door rail 13. The door hanger 15 is fixed to the upper end of the landing door 11 in the up-down direction.

[0015] The landing side door sill 14 is disposed at a lower end portion in the up-down direction of the entranceway. The landing side door sill 14 extends along the opening and closing direction of the landing door 11. The landing side door sill 14 supports the landing door 11 so as to be capable of moving.

[0016] The landing door 11 is provided with a closer weight device 20. The closer weight device 20 has a weight guide 21, a closer weight 22, a closer rope 23, and a weight pulley 24. The weight guide 21 is formed in a cylindrical shape and is disposed inside the landing door 11. The weight guide 21 is disposed with its axial direction parallel to the vertical direction. In the cylindrical hole of the weight guide 21, the closer weight 22 is disposed slidably along the vertical direction.

[0017] A closer rope 23 is connected to the upper end of the closer weight 22 in the vertical direction via a connecting rod 26. The detailed configuration of the closer weight 22 will be described later.

[0018] An end of the closer rope 23 opposite to the closer weight 22 is fixed to a fixed bracket 25 provided on the landing side door unit 12. This fixed bracket 25 is provided at approximately the center of the landing side door unit 12, that is, at the end on the door closing side in the opening and closing direction of the double-leaf door.

[0019] The weight pulley 24 is rotatably provided on a door hanger 15 fixed to the landing door 11. A closer rope 23 connected to the closer weight 22 is wound around the weight pulley 24 and fixed to a fixed bracket 25.

[0020] When the landing door 11 engages with the car side door provided on the elevator car and the landing door 11 opens together with the car side door, the weight pulley 24 moves to the door opening side in the opening / closing direction together with the door hanger 15 and the landing door 11. Therefore, the closer rope 23 pulls the closer weight 22 upward in the vertical direction via the weight pulley 24. As a result, the closer weight 22 slides in the cylindrical hole of the weight guide 21 and moves upward in the vertical direction. That is, the closer weight 22 moves upward in conjunction with the opening / closing operation of the landing door 11.

[0021] In addition, when the landing door 11 is disengaged from the car side door and the load from the car side door is no longer applied to the landing door 11, the closer weight 22 moves downward in the vertical direction due to its own weight. Then, the load of the closer weight 22 is applied to the door hanger 15 and the landing door 11 via the closer rope 23 and the weight pulley 24. As a result, a load in the door closing direction is applied from the closer weight 22 to the landing door 11.

[0022] 2. Example of closer weight configuration Next, the closer weight 22 will be described with reference to FIGS. 2A to 2C. FIG. 2A is a top view showing the closer weight 22, FIG. 2B is a front view, and FIG. 2C is a side view.

[0023] 2A to 2C, the closer weight 22 has a weight 31, which is a weight, two connecting plates 33, and a plurality of weight shoes 34. Two weight shoes 34 are disposed on each of both ends in the vertical direction of the weight 31. The weight shoes 34 each have the same configuration.

[0024] The weight shoes 34 are disposed at both ends of the width direction perpendicular to the up-down direction of the weight 31. The two weight shoes 34 are disposed at an interval at both ends of the width direction of the weight 31. When disposed in the cylindrical hole of the weight guide 21, the weight shoes 34 slide on the inner wall surface of the weight guide 21.

[0025] The weight shoe 34 is provided with a fixing hole 34a that penetrates in the vertical direction. A fixing bolt 41 is inserted into the fixing hole 34a, and the weight shoe 34 is fixed to the weight 31. A positioning recess 34b is provided on the other side of the weight shoe 34 opposite to the one side facing the weight 31. The positioning recess 34b is recessed from the other side of the weight shoe 34 toward the one side in the vertical direction. The end of the positioning recess 34b that faces the other weight shoe 34 is open. The connecting plate 33 fits into this positioning recess 34b.

[0026] The connecting plate 33 is formed in a substantially flat plate shape. The connecting plate 33 is formed with two plate-side fixing holes facing the fixing holes 34a of the weight shoe 34, and a rod fixing hole 33a. The two plate-side fixing holes are formed at both ends of the connecting plate 33. The rod fixing hole 33a is formed in the center of the connecting plate 33, i.e., between the two plate-side fixing holes.

[0027] The connecting rod 26 is inserted into the rod fixing hole 33a, and the connecting rod 26 and the connecting plate 33 are fastened and fixed by a fixing nut 42. The end of the connecting rod 26 inserted into the connecting plate 33 is exposed between the two weight shoes 34 arranged at the upper end of the weight 31 in the vertical direction. This allows an operator to easily check the connection state of the connecting rod 26 by checking the end of the connecting rod 26 exposed between the two weight shoes 34.

[0028] According to the closer weight device 20 of this embodiment, by dividing the weight shoe 34 into two, the dimensions of the weight shoe 34 do not depend on the width dimension of the weight 31. The same weight shoe 34 can be shared for weights of different width dimensions.

[0029] Furthermore, by providing the positioning recess 34b in the weight shoe 34, the two separated weight shoes 34 and the connecting plate 33 can be easily positioned.

[0030] The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention described in the claims.

[0031] In the above-mentioned embodiment, the weight guide 21 is provided inside the landing door 11, but the present invention is not limited to this. It is sufficient that at least the weight pulley 24 that transmits the load of the closer weight 22 to the landing door 11 is provided on the landing door 11, and the location where the weight guide 21 and the closer weight 22 are provided is not limited to the landing door 11.

[0032] In this specification, the words "parallel" and "orthogonal" are used, but these do not mean only "parallel" and "orthogonal" in the strict sense, but may also mean a "substantially parallel" or "substantially orthogonal" state that includes "parallel" and "orthogonal" and is within a range in which the respective functions can be exerted. [Explanation of symbols]

[0033] REFERENCE SIGNS LIST 1...elevator, 11...landing door, 12...landing door unit, 13...door rail, 14...landing door sill, 15...door hanger, 20...closer weight device, 21...weight guide, 22...closer weight, 23...closer rope, 24...weight pulley, 25...fixing bracket, 26...connecting rod, 31...weight, 33...connecting plate, 33a...rod fixing hole, 34...weight shoe, 34a...fixing hole, 34b...recess, 41...fixing bolt, 42...fixing nut

Claims

1. In a closer weight device that applies a load to an elevator door in the door closing direction, A cylindrical weight guide, a closer weight that slides in a cylindrical hole of the weight guide; a connecting rod fixed to the closer weight; a closer rope connected to the closer weight via the connecting rod, The closer weight is A weight to serve as a counterweight, A plurality of weight shoes fixed to the ends of the weights and sliding in the cylindrical holes of the weight guide; a connecting plate that connects the weight shoes at intervals and to which the connecting rod is fixed; The end of the connecting rod fixed to the connecting plate is exposed between the weight shoes. Closer weight device.

2. The weight shoes are fixed to both ends of the weight in the width direction. The closer weight device according to claim 1 .

3. The weight shoe is formed with a positioning recess into which the connecting plate fits. The closer weight device according to claim 2.

4. a landing door that is installed in an openable and closable manner at a landing where a car stops in the architectural structure; a closer weight device that applies a load to the landing door in a door closing direction, The closer weight device is A cylindrical weight guide, a closer weight that slides in a cylindrical hole of the weight guide; a connecting rod fixed to the closer weight; a closer rope connected to the closer weight via the connecting rod, The closer weight is A weight to serve as a counterweight, A plurality of weight shoes fixed to the ends of the weights and sliding in the cylindrical holes of the weight guide; a connecting plate that connects the weight shoes at intervals and to which the connecting rod is fixed; The end of the connecting rod fixed to the connecting plate is exposed between the weight shoes. Elevator.

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