Control device and elevator device

Abstract

To provide a control device including a door part which is openable / closable even in a narrow maintenance space.SOLUTION: A control device 10 includes a housing frame 1 and a door part 5 provided to be rotatable with respect to the housing frame 1. The door part 5 has a main door frame 5A and a sub-door frame 5B. The door part 5 has a two stage structure having a step in a thickness direction such that a thickness W5 of the main door frame 5A is different from a thickness W5B of the sub-door frame 5B. The step of the two step structure is formed on the side of a front end surface 5A4 of the door part 5.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a control device and an elevator device equipped with a door structure that can be opened and closed even in a narrow maintenance space. [Background technology]

[0002] As background art relating to the structure of a door section of a control device, Patent Document 1 discloses a control panel having a two-door structure that opens to the left and right, which is used in machine tools and the like (see paragraphs 0001, 0008 and FIG. 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-44844 A Summary of the Invention [Problem to be solved by the invention]

[0004] Below, as an example of a control device, a control device used in an elevator device will be described. The control device for the elevator device is installed in a machine room. Maintenance personnel perform maintenance work by opening and closing the door of the control device, but it is difficult to secure a large space for the control device installation location in a machine room. If a large space cannot be secured for the installation location of the control device, there is a problem that the door cannot be opened and closed sufficiently, resulting in poor maintenance workability. The above-mentioned problem is not limited to the control device for the elevator device, but is common to control devices installed in narrow spaces, such as the machine tool described in Patent Document 1, and other objects.

[0005] An object of the present invention is to provide a control device having a door portion that can be opened and closed even in a narrow maintenance space. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides A control device including a housing frame, a mounting component disposed inside the housing frame, and a door portion rotatably provided with respect to the housing frame, The door section has a main door frame and a sub door frame, and the thickness of the main door frame and the thickness of the sub door frame are changed to form the door section. of It has a two-stage structure with a step in the thickness direction, The step of the two-step structure is formed on the front end surface side of the door portion. 、 The secondary door frame is configured to be rotatable relative to the primary door frame. do. Effect of the Invention

[0007] According to the control device of the above configuration, by making the thickness of the door section of the control device into a two-stage configuration, it is possible to provide a control device with excellent maintainability by improving the opening and closing performance of the door section without affecting the installation of internal components of the control device.

[0008] Problems, configurations and effects other than those described above will become apparent from the following description of the embodiments. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a front view showing a control device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a side view of the control device of FIG. [Diagram 3] FIG. 2 is a top view of the control device of FIG. 1 with the door section in an open state. [Figure 4] FIG. 4 is a top view showing a control device of a comparative example to the present invention. [Diagram 5] FIG. 4 is a top view similar to FIG. 3, showing the dimensional relationship of the door portion. [Figure 6] FIG. 11 is a front view showing a control device according to a modified example of the present invention. [Figure 7] FIG. 7 is a top view of the control device of FIG. 6. [Figure 8] 7 is an enlarged view showing an end (side edge) of a door portion of the control device in FIG. 6. FIG. [Figure 9]1 is a schematic configuration diagram of an elevator device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of a control device of the present invention will be described with reference to the drawings. In each drawing, the same or similar components are designated by the same reference numerals, and repeated description will be omitted.

[0011] In this embodiment, the door section of the control device has a two-stage thickness, which improves the opening and closing performance of the door section 5 and improves the maintenance workability of the control device without affecting the installation of the parts inside the control device. The control device of this embodiment can improve the opening and closing performance of the door section even when placed in a narrow space such as the machine room of an elevator device.

[0012] Fig. 1 is a front view showing a control device 10 according to an embodiment of the present invention. Fig. 2 is a side view of the control device 10 of Fig. 1. Fig. 3 is a top view of the control device 10 of Fig. 1, showing the door unit 5 in an open state. In Fig. 3, the door unit 5 in the open state is shown by a solid line, and the door unit 5 in the middle of opening and in a closed state is shown by a dashed line.

[0013] As shown in Figures 1 to 3, the control device 10 comprises a housing frame (first housing frame) 1, a housing frame (second housing frame) 2, components (mounted components) 3 to be mounted on the first housing frame 1, a hinge 4 connecting the first housing frame 1 and the second housing frame 2, and a door portion 5 of the first housing frame 1.

[0014] The first housing frame 1 is a frame that constitutes the main body of the control device 10 and serves as the housing of the control device 10.

[0015] The door section 5 comprises a main door frame (door main body section) 5A and a secondary door frame (door side edge section) 5B. The main door frame 5A is rotatably supported with respect to the first housing frame 1 by a hinge (first hinge, main door frame hinge) 7 that connects the first housing frame 1 and the main door frame 5A. The secondary door frame 5B is provided on a side edge section 5A2 opposite to a side edge section 5A1 supported by the hinge 7 of the main door frame 5A.

[0016] The first housing frame 1 has components (mounted components) 3 mounted therein. The second housing frame 2 has components (mounted components) 8 mounted therein. The second housing frame 2 and components (mounted components) 8 are added to the first housing frame 1 as necessary.

[0017] Considering that the control device 10 will be installed in a narrow space, the thickness W10 of the first housing frame 1 is thin. Usually, only the component 3 is mounted, but when it becomes necessary to mount additional components, the second housing frame 2 is added to the first housing frame 1 using the hinge 4, and the component 8 is mounted on the second housing frame 2. Here, by increasing the thickness of the main door frame 5A, it is possible to cover the additionally mounted component 8.

[0018] That is, the second housing frame 2 is an additional frame (sub-frame) added to the first housing frame (main frame) 1. The component 8 is mounted on the second housing frame 2 so as to protrude forward F from the front end surface 1a of the first housing frame 1, and the part protruding from the first housing frame 1 is covered by the main door frame 5A.

[0019] In the control device 10 of this embodiment, the components 8 protruding from the first housing frame 1 are covered by the main door frame 5A, so the thickness W5 (see FIG. 5) of the main door frame 5A, i.e., the door section 5, becomes thick. For this reason, in a configuration in which the door section 5 is not provided with a secondary door frame 5B, the turning radius of the door section 5 becomes large when it is opened or closed. This will be described in detail below.

[0020] A control device in a comparative example to the present invention will be described with reference to Fig. 4. Fig. 4 is a top view showing a control device 10' in a comparative example to the present invention. In Fig. 4, a door portion 5' in a closed state is shown by a dashed line.

[0021] Regarding the structure of the door portion 5' of the control device 10' in the comparative example, as shown in FIG. 4, the thickness W5' of the door portion 5' is constant and a large turning radius R1' is required when opening and closing the door portion 5'. In particular, when the door portion 5' is installed in a narrow machine room or the like, the end (side edge) of the door portion 5' comes into contact with the machine room wall and the door portion 5' cannot be opened wide, which reduces the workability of maintenance work on the internal components of the control device 10'.

[0022] 4, the door section 5 of this embodiment has a structure in which a second frame 5B having a thickness W5B smaller than that of the main door frame 5A is attached to an end (side edge) 5A2 of the first frame 5A. By providing the door section 5 with a two-stage structure in which the second frame 5B is provided on the first frame 5A, the rotation radius R1 of the door section 5 when opening and closing can be reduced. Therefore, in this embodiment, the rotation radius R1 around the hinge 7 when opening and closing can be reduced compared to the comparative example, so that the door section 5 can be opened and closed widely without coming into contact with the indoor wall even in a limited maintenance space, and the maintenance workability of the internal components of the control device 10 is improved.

[0023] Here, the rotation radius R1 of the door section 5 will be described in detail with reference to Fig. 5. Fig. 5 is a top view similar to Fig. 3, and shows the dimensional relationship of the door section 5. Fig. 5 shows two imaginary axes 7x and 7y that are perpendicular to each other with the rotation axis (center of rotation) of the hinge 7 as an intersection point and parallel to the plane of Fig. 5. Of the orthogonal axes 7x and 7y, axis 7x is parallel to the front surface 1a of the first housing frame 1.

[0024] In this embodiment, the thickness W5 of the main door frame 5A and the thickness W5B of the sub door frame 5B are made different, so that the door section 5 has a two-stage structure having a step in the thickness direction.

[0025] The door section 5 rotates around the rotation axis of the hinge 7 relative to the first housing frame 1, and when the door section 5 is closed, an end face (rear end face) 5A3 of the main door frame 5A and an end face (rear end face) 5B3 of the sub door frame 5B abut against an end face (front end face) 1a of the first housing frame 1. Therefore, the end face (rear end face) 5A3 of the main door frame 5A and the (rear end face) 5B3 of the sub door frame 5B are arranged on one plane.

[0026] In this case, the maximum rotation radius R1 of the door portion 5 when it is opened or closed corresponds to the length of the straight line connecting the rotation axis of the hinge 7 and the corner portion 5B1 of the secondary door frame 5B.

[0027] When viewed from the rotation axis side of the hinge 7, the part at the tip end of the door section 5 where the turning radius is the smallest is located on the axis 7x when the door section 5 is closed. In this embodiment, the end face (front end face) 5B4 of the subordinate door frame 5B is located on the axis 7x, and the part at the tip end of the door section 5 where the turning radius is the smallest (minimum turning radius part) is the corner 5B2 of the subordinate door frame 5B. The turning radius of the corner 5B2 is the length of a straight line connecting the corner 5B2 and the rotation axis side of the hinge 7.

[0028] Therefore, the turning radius R1 of the door section 5 when it is opened or closed is larger than the turning radius of the corner 5B2. However, since the thickness W5B of the secondary door frame 5B in the turning direction is thin, the corner 5B1 is close to the corner 5B2, and the turning radius R1 of the door section 5, that is, the turning radius of the corner 5B1 is only slightly larger than the turning radius of the corner 5B2.

[0029] The corners 5B1, 5B2 are corners formed on a side edge (tip side edge) 5B6 opposite to a contact surface (side edge) 5B5 of the secondary door frame 5B that contacts the primary door frame 5A.

[0030] In this embodiment, the rotation axis of the hinge 7 is located forward (below in FIG. 5) of the end surface 1a of the first housing frame 1. Also, the rotation axis of the hinge 7 is disposed closer to the end surface (front end surface) 5A4 than the end surface 5A3 with respect to the main door frame 5A. When the door section 5 is closed, the rotation axis of the hinge 7 is located forward (below in FIG. 5) of the end surface 5A3.

[0031] As a support structure for the door section 5, it is preferable that the rotation axis of the hinge 7 is close to the end surface 1a of the first housing frame 1 and close to the end surface 5A3 of the main door frame 5A. This also makes it possible to make the rotation radius R1 of the door section 5 close to the rotation radius (minimum rotation radius) of the portion at the tip side of the door section 5 where the rotation radius is smallest.

[0032] In this embodiment, the rotation axis of the hinge 7 is disposed within a range of length (distance) from the end face 5A3 of the main door frame 5A that is less than half (W5 / 2) of the thickness W5 of the door section 5. More preferably, the rotation axis of the hinge 7 is disposed within a range of length (distance) from the end face 5A3 of the main door frame 5A that is less than a quarter (W5 / 4) of the thickness W5 of the door section 5.

[0033] In order to reduce the turning radius of the tip side of the door section 5, it is necessary to limit the range in which the corner 5B2 of the slave door frame 5B is located on the opposite side of the corner 5B1 beyond the axis 7x. In this embodiment, since the end face (front end face) 5B4 of the slave door frame 5B is configured to be located on the axis 7x, the corner 5B1 of the slave door frame 5B is located at a distance W5B away from the axis 7x. In this case, it is preferable that the corner 5B2 of the slave door frame 5B is located at a distance of W5B or less from the axis 7x. In other words, if the corner 5B2 of the slave door frame 5B is located at a distance of W5B (the distance between the corner 5B1 and the axis 7x) or less from the axis 7x, the turning radius of the corner 5B2 will not be larger than the turning radius of the corner 5B1.

[0034] In this embodiment, the door section 5 is composed of one door section, and all door sections 5 provided in the control device are provided with a sub-door frame 5B. The front end surface 5B4 of this sub-door frame 5B is not covered by other door sections. That is, the sub-door frame 5B is configured to be exposed toward the front of the control device 10 when the door section 5 is closed. In this case, the sub-door frame 5B is configured so that the front end surface 5B4 is exposed toward the front of the control device 10. This allows the thickness of the side edge portion 5B6 of the door section 5 to be configured so that the turning radius R1 is small.

[0035] Next, a modified example of this embodiment will be described with reference to Figs. 6 to 8. Fig. 6 is a front view showing a control device according to a modified example of the present invention. Fig. 7 is a top view of the control device of Fig. 6. Fig. 8 is an enlarged view showing an end (side edge) of the door section 5 of the control device 10 of Fig. 6. In Fig. 7, the door section 5 in the open state is shown by a solid line, and the door section 5 in the middle of opening and in the closed state is shown by a dashed line. In Fig. 8, the secondary door frame 5B in the open state is shown by a solid line, and the secondary door frame 5B in the middle of opening and in the closed state is shown by a dashed line.

[0036] The above-mentioned embodiment is based on the premise that the main door frame 5A and the sub door frame 5B are manufactured from a single frame, and the main door frame 5A and the sub door frame 5B are fixed to form a two-stage door section 5. 5B It is also possible to separate the main door frame 5A and the sub door frame 5B and connect them with a hinge (second hinge, sub door frame hinge) 9 to form a two-stage structure. 5B The only difference from the previous embodiment is that the first and second sections are separated and connected by a hinge 9 to form a two-stage structure, and the other configurations are the same as those of the previous embodiment.

[0037] In this example, the hinge 9 allows the end of the door section 5 (the sub door frame 5B) to rotate relative to the main body of the door section 5 (the main door frame 5A). In this case, the main door frame 5A and the sub door frame 5B are connected by the hinge 9, and the sub door frame 5B is rotatably supported relative to the main door frame 5A. Since the hinge 9 allows the sub door frame 5B to rotate and be folded toward the main door frame 5A, if the turning radius when the door section 5 is opened or closed is R2, R2 can be made smaller than R1. Therefore, the use of the hinge 9 further reduces the turning radius, making it possible to accommodate cases where the maintenance space is narrower.

[0038] 8, the contact surface (side edge) 5A2 of the main door frame 5A that contacts the secondary door frame 5B and the contact surface (side edge) 5B5 of the secondary door frame 5B that contacts the main door frame 5A come into contact with each other, thereby preventing the secondary door frame 5B itself from rotating in the opposite direction. That is, the secondary door frame 5B is configured to be rotatable in one direction relative to the main door frame 5A when the door section 5 is closed. And the secondary door frame 5B has a certain thickness W5B, which prevents it from rotating in the opposite direction.

[0039] As described above, according to the configuration of the above-mentioned embodiment including the modified example, in the control device 10 having the housing unit (first housing frame) 1 and the door unit 5, by making the thickness of the door unit 5 a two-stage structure, the rotation radius R1 about the hinge 7 as the rotation axis is smaller than in the case of a normal door unit, and the door unit 5 can be opened and closed even in a limited maintenance space, improving maintenance workability. Also, since the control device 10 can be installed in a position close to a wall, the degree of freedom in arranging the control device 10 in the installation space is improved.

[0040] The schematic configuration of an elevator system 100 to which this embodiment is applied will be described with reference to Fig. 1. Fig. 9 is a schematic configuration diagram of the elevator system 100 according to one embodiment of the present invention.

[0041] The elevator device 100 is configured such that a lifting body (car) 103 and a counterweight 104 are connected by a main rope 105 in a hoistway 102 provided in a building 200, and the car 103 can rise and fall along a guide rail 107. Inside a machine room 101 formed at the top of the hoistway 102, there are arranged a hoisting machine 106 around which the main rope 105 is wound, a control device 10 that controls the hoisting machine 106, a governor 110, and the like.

[0042] The governor 110 is composed of an endless governor rope 111 stretched over the entire ascending and descending stroke in the elevator shaft 102, and a sheave (governor pulley) installed in the machine room 101 and around which the governor rope 111 is wound. The governor 110 detects overspeed of the car 103 and activates the emergency stop device 108 described later.

[0043] In this embodiment, the maintainability of the control device 10 is improved, so that an elevator device 100 with excellent maintainability can be provided.

[0044] The control device of the present invention is not limited to the above-mentioned embodiment, and various modifications are possible within the scope of the gist of the invention described in the claims. Therefore, the present invention is not limited to the above-mentioned embodiments, and various modifications are included. For example, the above-mentioned embodiments have been described in detail to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations. In addition, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. In addition, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration. [Explanation of symbols]

[0045] 1...chassis frame (first chassis frame), 1a...front end surface of chassis frame 1, 3...mounted components, 5...door section, 5A...main door frame, 5A3...rear end surface of main door frame 5A, 5A4...front end surface of door section 5 and main door frame 5A, 5B...secondary door frame, 5B3...rear end surface of secondary door frame 5B, 5B4...front end surface of secondary door frame 5B, 7...hinge (first hinge), 9...hinge (second hinge), 10...control device, 100...elevator device, 101...machine room, 102...hoistway, 103...car, 104...counterweight, 105...main rope, 106...hoisting machine, W5...thickness of main door frame 5A, W5B...thickness of secondary door frame 5B.

Claims

1. A control device including a housing frame, a mounting component disposed inside the housing frame, and a door portion rotatably provided with respect to the housing frame, The door section has a main door frame and a sub door frame, and the thickness of the main door frame and the thickness of the sub door frame are changed to form a two-stage structure having a step in the thickness direction of the door section, The step of the two-stage structure is formed on the front end surface side of the door portion, The control device is characterized in that the secondary door frame is configured to be rotatable relative to the main door frame.

2. the mounting component is disposed so as to protrude forward from a front end surface of the housing frame, The control device according to claim 1 , wherein the main door frame is structured to cover a portion of the mounted component that protrudes forward from the front end surface of the housing frame.

3. The control device according to claim 1 , wherein the secondary door frame is configured to be exposed toward the front of the control device without being covered by another door portion when the door portion is closed.

4. The main door frame is rotatably supported on the housing frame by a first hinge, the main door frame has a rear end surface that abuts against the front end surface of the housing frame when the door portion is closed, and a front end surface located on the opposite side to the rear end surface, The control device according to claim 1 , wherein the rotation axis of the first hinge is disposed closer to the rear end surface of the main door frame than to the front end surface in a thickness direction of the main door frame.

5. the main door frame has a rear end surface that abuts against the front end surface of the housing frame when the door portion is closed, and a front end surface located on the opposite side to the rear end surface, The secondary door frame has a rear end surface that abuts against the front end surface of the housing frame when the door portion is closed, and a front end surface located on the opposite side to the rear end surface, The control device according to claim 1 , wherein the rear end surface of the main door frame and the rear end surface of the sub door frame are arranged on a single plane when the door sections are closed.

6. 2. The control device according to claim 1, wherein the main door frame and the secondary door frame are connected by a second hinge, and the secondary door frame is axially supported so as to be rotatable relative to the main door frame.

7. The secondary door frame is configured to be rotatable in one direction relative to the primary door frame from a state in which the door section is closed, The control device according to claim 6, wherein the secondary door frame has a certain thickness to prevent rotation in the reverse direction.

8. In an elevator device that raises and lowers a passenger car in a hoistway, An elevator system comprising the control device according to any one of claims 1 to 7 as a control device for controlling the elevation and lowering of the car.

9. The elevator comprises a counterweight, a main rope connecting the elevator car and the counterweight, and a hoist around which the main rope is wound; 9. The elevator apparatus according to claim 8, wherein the control device is disposed inside a machine room provided at an upper portion of the elevator shaft.

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