Elevator

Abstract

To provide an elevator having a support mechanism capable of not only reducing the occupation area of an inclination suppression member including a mounting bracket as much as possible and suppressing inclination of a hoist.SOLUTION: A mounting bracket 50 mounted to at least to a guide rail 19A positioned between a hoist 16 and the wall surface of a hoistway 12 is mounted so as to extend in a protruding direction directed to the hoist 16 side of a rail body 19Ab in a space formed between the guide rail 19A and the hoist 16, and further an inclination suppression member 51 is mounted to this mounting member. As the mounting bracket is disposed in the space between the guide rail and the hoist, the occupation area of the inclination suppression member including the mounting bracket can be reduced as much as possible, and inclination of the hoist can be suppressed.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an elevator that transports passengers and baggage between different floors, and more particularly to an elevator equipped with a support mechanism for a hoist that supports the elevator hoist. [Background technology]

[0002] In elevators without a machine room, in which the hoist is installed at the top of the hoistway, a sheave is provided on the hoistway around which the main rope is wound. The load of the car and the counterweight acts on this sheave, which can cause the hoistway to tilt inward. To suppress this phenomenon, for example, a configuration is known in which a tilt suppression member that suppresses the tilt of the hoistway is provided on the guide rails that are located between the hoistway and the guide rail.

[0003] For example, JP 2019-137511 A (Patent Document 1) discloses a support mechanism in which a tilt suppression member (corresponding to the upper fixed member in Patent Document 1) made of an L-shaped steel that crosses the hoist horizontally is fixed to a bracket fixed to the car side guide rail and the weight side guide rail, and this tilt suppression member is brought into contact with the hoist via a vibration-damping member to suppress the tilt of the hoist.

[0004] According to this support mechanism for the hoist, even if the hoist tilts toward the hoistway, this tilt is absorbed by the tilt suppression member via the vibration-isolating member, making it possible to suppress the tilt of the hoist. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-137511 A Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, the tilt suppression member described in Patent Document 1 is configured to be attached to the back surface of the guide rail, which requires a certain amount of clearance between the back surface of the guide rail and the wall surface of the elevator shaft. Also, the member attached to the back surface of the guide rail on the counterweight side and the member that secures the hoist via the vibration isolator are separate members, and these two members are connected in a direction perpendicular to the direction in which the guide rail on the counterweight side faces each other, so in elevators in which equipment is arranged on the side surface of the guide rail on the counterweight side, it is necessary to ensure a clearance large enough to avoid interference between the tilt suppression member and the equipment, which has led to cases where the area of ​​the elevator shaft needs to be expanded.

[0007] The object of the present invention is to provide an elevator equipped with a support mechanism that can reduce the area occupied by the tilt suppression member in the elevator shaft as much as possible and suppress the tilt of the hoisting machine while avoiding interference with other components of the elevator. [Means for solving the problem]

[0008] The present invention is an elevator including a hoistway formed in a building, a car moving in the hoistway, a counterweight connected to the car via a main rope, a pair of car-side guide rails that guide the movement of the car and are arranged to sandwich the car from both sides, a pair of weight-side guide rails that guide the movement of the counterweight and are arranged to sandwich the counterweight from both sides, and a hoist around which the main rope is wound and which moves the car and the counterweight in different directions within the hoistway, the hoist being characterized in that the inclination of the hoistway caused by the load acting from the main rope is suppressed by a weight-side tilt suppression member including a weight-side mounting bracket attached to one guide rail (weight side) of the weight-side guide rail, and a car-side tilt suppression member including a car-side mounting bracket attached to one guide rail (cage side) of the car-side guide rail, and at least a part of the weight-side mounting bracket and the weight-side tilt suppression member are disposed in a space formed between the guide rail (weight side) and the hoist. Effect of the Invention

[0009] According to the present invention, the weight side mounting bracket and part of the weight side tilt suppression member are arranged in the space between the guide rail (weight side) and the hoist, thereby reducing the area occupied by the tilt suppression member including the mounting bracket in the plan view when the elevator shaft is viewed vertically, and making it possible to suppress tilt of the hoist while avoiding interference with elevator components. [Brief description of the drawings]

[0010] [Figure 1] 1 is a cross-sectional view showing the configuration of an elevator to which the present invention is applied. [Diagram 2] 1 is a top view showing a configuration of a support mechanism seen from above a hoisting machine according to a first embodiment of the present invention, with the main ropes omitted. [Diagram 3] 1 is a top view showing a configuration of a support mechanism seen from above a hoisting machine according to a second embodiment of the present invention, with the main ropes omitted. [Figure 4] FIG. 4 is an enlarged view of a portion P in FIG. [Diagram 5] 4 is a view taken along the arrow C in FIG. 3, with the hoist and other parts omitted. [Figure 6] FIG. 6 is a view taken along the arrow D in FIG. 5 . [Figure 7] 1 is an explanatory diagram illustrating the top and side surfaces of a mounting block. FIG. [Figure 8] FIG. 1 is a top view showing the configuration of a support mechanism of a conventional structure as seen from above the hoisting machine. [Figure 9] FIG. 9 is a view taken along the arrow A in FIG. 8. [Figure 10] FIG. 9 is a view taken along the arrow B in FIG. 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiment, and various modifications and application examples within the technical concept of the present invention are also included within its scope.

[0012] First, we will briefly explain the structure of a typical elevator, the support structure of the prototype hoisting machine, and the issues involved. Figure 1 shows a cross-sectional view of the elevator structure.

[0013] In FIG. 1, reference numeral 10 denotes an elevator, and this elevator 10 is provided in a building 11. The building 11 may be an office building, an apartment building, a train station, or the like. Inside the building 11, a hoistway 12 is formed extending from a lower floor to an upper floor. The hoistway 12 is provided with landings 13 provided on each floor, and passengers of a car 14 traveling in the hoistway 12 exit the car 14 at the landings 13, and passengers of the landings 13 board the car 14.

[0014] A car 14 and a counterweight 15 are provided inside the hoistway 12, and pulleys are provided on the car 14 and the counterweight 15. A hoisting machine 16 is disposed above the hoistway 12. A sheave 17 is attached to the hoisting machine 16, and a main rope 18, both ends of which are fixed, is wound around the pulley of the car 14, the sheave 17, and the pulley of the counterweight 15.

[0015] Further, a pair of counterweight-side guide rails 19 corresponding to the counterweight 15 are provided on the wall surface side of the hoistway 12, and the counterweight 15 is guided in the vertical direction by the counterweight-side guide rails 19 (19A, 19B). Similarly, a pair of car-side guide rails 20 (20A, 20B) corresponding to the car 14 are provided on the wall surface side of the hoistway 12, and the car 14 is guided in the vertical direction by the car-side guide rails 20.

[0016] The counterweight side guide rail 19 and the car side guide rail 20 are supported by a rail support base 21 provided on the bottom surface of the hoistway 12, and a damper 22 is further attached to this.

[0017] Then, according to instructions from the platform 13 or the car 14, the hoist 16 is controlled and driven, and the car 14 travels to the designated floor to perform the operating service.

[0018] Next, a support structure for the elevator hoisting machine of the elevator as described above will be described.

[0019] Figures 8 to 10 show an example of a conventional support mechanism for a hoist. These figures show a support structure that supports the hoist 16 while suppressing the inclination of the hoist 16, with Figure 8 showing the hoist 16 as seen from above, Figure 9 (as seen from the arrow A in Figure 8) showing the state as seen from the sheave side when the sheave 17 side is the front, and Figure 10 (as seen from the arrow B in Figure 8) showing the state as seen from the side of Figure 9.

[0020] In Figure 8, a pair of car side guide rails 20A, 20B fixed to a rail fixing device 23 are arranged near the wall surface of the elevator shaft 12 to sandwich the car 14 from both sides so that the car 14 can run on them.

[0021] In addition, the hoisting machine 16 is placed on the upper left side of the drawing, and a pair of counterweight side guide rails 19A, 19B fixed to a rail fixing device 24 are arranged to sandwich it on both sides (note that one of the counterweight side guide rails 19B is hidden and cannot be seen).

[0022] The guide rails 19, 20 are arranged so that a line segment Lsc connecting the pair of car-side guide rails 20A, 20B and a line segment Lsw connecting the pair of counterweight-side guide rails 19A, 19B are perpendicular to each other. In addition, a hall-side door 25 is provided in the elevator shaft 12.

[0023] The line segment Lsc of the car-side guide rail 20 is parallel to the hall-side door 25, and the line segment Lsw of the counterweight-side guide rail 19 is perpendicular to the hall-side door 25. These relationships also apply to the embodiments of the present invention described later.

[0024] A main rope 18 is wound around the sheave 17, and one end 26 of the main rope 18 is fixed to a machine beam 27 of the hoisting machine 16 via a pulley of the counterweight 15. The other end 28 of the main rope 18 is fixed to a fixed part of the hoistway 12 via a pulley of the car 14.

[0025] A car-side mounting bracket 29 is fixed by welding onto the back surface of the car-side guide rail 20A closer to the hoist 16 of the car-side guide rail 20. In addition, a car-side tilt suppressing member 31 is fixed to this car-side mounting bracket 29 by a fixing bolt 30. The tilt suppressing member 31 comes into contact with the hoist 16 via a vibration-isolating material 32, and suppresses the tilt of the hoist 16.

[0026] On the other hand, a weight-side mounting bracket 33 is fixed by welding onto the back surface of the weight-side guide rail 19A of the weight-side guide rail 19 that is closer to the hoistway 12. A weight-side tilt suppressing member 35 is fixed to this weight-side mounting bracket 33 by a fixing bolt 34. The tilt suppressing member 35 contacts the hoisting machine 16 via a vibration isolating material 36, and suppresses the tilt of the hoisting machine 16.

[0027] 9 and 10 show the state seen from the side of FIG. 8. In this state, the hoisting machine 16 is installed on the machine beam 27. A pair of beam supports 37 are fixed to the pair of counterweight side guide rails 19A and 19B. Compared to one counterweight side guide rail 19A, the other counterweight side guide rail 19B is set to have a shorter length in the upward direction of the hoistway 12.

[0028] Therefore, the position of the beam support 37 is determined based on this length. The machine beam 27 is stretched across and fixed to the beam support 37. Furthermore, the hoisting machine 16 is placed on the machine base 27 via a damper 38.

[0029] As described above, the car-side guide rail 20A is provided with the car-side mounting bracket 29 and the car-side tilt suppression member 31. Similarly, as described above, the weight-side guide rail 19A is provided with the weight-side mounting bracket 33 and the weight-side tilt suppression member 35. These tilt suppression members 31 and 35 are formed in a flat plate shape and, unlike Patent Document 1, are separated from each other.

[0030] 8, the mounting bracket 33 extends from the rear surface of the rail body of the counterweight side guide rail 19A opposite to the base thereof so as to protrude along the wall surface of the hoistway 12. Furthermore, a tilt suppression member 35 is disposed so as to extend toward the hoisting machine 16 in a direction perpendicular to the protruding counterweight side mounting bracket 33.

[0031] In this way, the weight-side mounting bracket 33 is fixed to the back surface of the weight-side guide rail 19A and extends so as to protrude along the wall surface of the elevator shaft 12. For this reason, an occupied area is required for arranging the weight-side mounting bracket 33, and further, there is a concern that the protruding part of the weight-side mounting bracket 33 may interfere with other components of the elevator.

[0032] In order to address such problems, the present invention provides an elevator including a hoistway formed in a building, a car moving in the hoistway, a counterweight connected to the car via a main rope, a pair of car-side guide rails that guide the movement of the car and are arranged to sandwich the car from both sides, a pair of weight-side guide rails that guide the movement of the counterweight and are arranged to sandwich the counterweight from both sides, and a hoist around which the main rope is wound and which moves the car and the counterweight in different directions within the hoistway, the hoist being characterized in that the tilt of the hoistway caused by the load acting from the main rope is suppressed by a weight-side tilt suppression member including a weight-side mounting bracket attached to one guide rail (weight side) of the weight-side guide rail, and a car-side tilt suppression member including a car-side mounting bracket attached to one guide rail (car side) of the car-side guide rail, and at least a part of the weight-side mounting bracket and the weight-side tilt suppression member are disposed in a space formed between the guide rail (weight side) and the hoist.

[0033] In this way, the mounting bracket is positioned in the space formed by the guide rail and the hoist, thereby reducing the area occupied by the tilt suppression member including the mounting bracket and suppressing tilt of the hoist while avoiding interference with elevator components.

[0034] Hereinafter, several embodiments of the present invention will be described with reference to the drawings. Note that the same reference numerals denote the same components, and therefore a repeated description will be omitted. However, additional description may be provided as necessary. EXAMPLES

[0035] A first embodiment of the present invention will be described with reference to Fig. 2. Fig. 2 shows a hoisting machine 16 as viewed from above.

[0036] In Figure 2, the guide rails to which the counterweight side mounting bracket 40 and the car side mounting bracket 41 are attached are the counterweight side guide rail 19A (referred to in the claims as guide rail (counterweight side)) on the side closer to the wall of the elevator 12 adjacent to the hoisting machine 16, and the car side guide rail 20A (referred to in the claims as guide rail (car side)) adjacent to the hoisting machine 16.

[0037] In other words, the counterweight side guide rail 19A is a guide rail that exists between the hoisting machine 16 and the wall surface of the elevator shaft 12, and the car side guide rail 20A is a guide rail that is adjacent to the counterweight side guide rail 19B, which is located on the opposite side of the hoisting machine 16 to the counterweight side guide rail 19A.

[0038] Here, the other weight-side guide rail 19B, on which the mounting bracket 40 of the weight-side guide rail 19 is not provided, does not have a sufficient length in the height direction of the elevator shaft 12, as shown in Figure 9, so it is not possible to provide the weight-side mounting bracket 40 that supports the inclination of the hoisting machine 16.

[0039] In addition, the other car side guide rail 20B, on which the car side mounting bracket 41 is not provided, is far away from the hoisting machine 16, so it is not possible to provide a weight side mounting bracket 41 that supports the inclination of the hoisting machine 16.

[0040] Therefore, the weight-side guide rail 19A to which the weight-side mounting bracket 40 is attached is the guide rail on the higher side in the hoistway 12 (the guide rail located between the hoist and the wall of the hoistway on the side on which no car guide rail exists), and the car-side guide rail 20A to which the car-side mounting bracket 41 is attached is the guide rail on the side closer to the hoist 16 (the guide rail between the hoist and the wall of the hoistway on the side on which the weight-side guide rail exists). This is also true for Example 2 described later.

[0041] First, a flat car-side mounting bracket 41 is fixed by welding or other method to the back surface of the car-side guide rail 20A opposite to the rail body 20Ab. This car-side mounting bracket 41 extends toward the side surface on the side where the sheave 17 of the hoisting machine 16 is present, and contacts the end surface of the hoisting machine 16 at a predetermined position via a vibration-isolating member 42.

[0042] Therefore, the car-side mounting bracket 41 is flat and also functions as a car-side tilt suppressing member. For this reason, it may be referred to as a car-side tilt suppressing member below. Also, the car-side mounting bracket 41 terminates before reaching the sheave 17 of the hoisting machine 16.

[0043] In this way, since the car side mounting bracket (=car side tilt suppressing member) 41 is flat and does not have any bent parts, the area occupied by the tilt suppressing member including the mounting bracket can be reduced.

[0044] A weight-side mounting bracket 40, which is L-shaped when viewed from above, is fixed to the side surface of the rail main body 19Ab of the weight-side guide rail 19A by a method such as welding. This weight-side mounting bracket 40 is composed of a flat area 40A extending in a direction protruding toward the hoist 16 side of the rail main body 19Ab (in a direction parallel to the line segment Lsw), and a flat area 40B bending at a right angle (in a direction parallel to the line segment Lsc) from this flat area 40A.

[0045] The flat area 40A extends toward the hoist 16 while maintaining a parallel relationship with the line segment Lsw of the counterweight side guide rail 19, and is fixed to the side surface of the rail main body 19Ab by welding. Note that the flat area 40A may be attached in a manner that clamps the rail main body 19Ab instead of welding.

[0046] In this way, the weight-side mounting bracket 40 is disposed in the space formed by the hoist 16 and the weight-side guide rail 19A. The space formed by the hoist 16 and the weight-side guide rail 19A is suitable as an occupied space for the weight-side mounting bracket 40 because elevator components and the like are rarely provided therein.

[0047] Moreover, the flat area 40B of the weight-side mounting bracket 40 is connected to the weight-side tilt suppression member 43, which is L-shaped in top view, by the fixing bolt 44. Here, the flat area 40B of the weight-side mounting bracket 40 and the flat area 43A of the weight-side tilt suppression member 43 described later may be configured so that their relative positions can be adjusted, and in this case, they may be firmly fixed by the fixing bolt 44 after the position adjustment is completed.

[0048] The cone-side tilt suppression member 43 is composed of a planar region 43A extending in a direction parallel to the line segment Lsc, which is in intimate contact with the planar region 40B, and a planar region 43B bent at a right angle (in a direction parallel to the line segment Lsw) from this planar region 43A.

[0049] The flat area 43A of the weight-side tilt suppression member 43 is in close contact with the flat area 40B of the weight-side mounting bracket 40, and they are fixed to each other by a fixing bolt 44. The flat area 43A, which is a part of the weight-side tilt suppression member 43, is disposed in the space formed between the weight-side guide rail 19A and the hoisting machine 16, similar to the weight-side mounting bracket 40.

[0050] The flat area 43B of the counterweight side inclination suppression member 43 extends toward the side surface on which the sheave 17 of the hoisting machine 16 is located, while maintaining a parallel relationship with the line segment Lsw of the counterweight side guide rail 19, and contacts the end surface of the hoisting machine 16 at a predetermined position via the vibration isolator 45. The flat area 43B of the counterweight side inclination suppression member 43 terminates before reaching the sheave 17 of the hoisting machine 16.

[0051] Here, the planar area 43B of the weight-side tilt suppression member 43 and the planar area of ​​the car-side tilt suppression member 41 are in a so-called "flush" relationship in which their imaginary extension planes (planes parallel to the line segment Lsw) coincide with each other, and the planar area 43B of the weight-side tilt suppression member 43 and the planar area of ​​the car-side tilt suppression member 41 are configured so as not to protrude beyond the axial tip of the sheave 17. This makes it possible to reduce the occupied area and also to reduce the risk of interference with elevator components.

[0052] As described above, according to the configuration of this embodiment, the car side mounting bracket (car side tilt suppression member), the weight side mounting bracket, and the weight side tilt suppression member can suppress the tilt phenomenon of the hoist caused by the load of the car and balancing weight acting on the sheave.

[0053] In addition, according to the configuration of this embodiment, at least the weight side mounting bracket and a portion of the weight side tilt suppression member are arranged in the space formed between the hoist and the guide rail, thereby reducing the area occupied by the tilt suppression member including the mounting bracket.

[0054] In addition, the space formed between the hoist and the guide rail is a space in which elevator components are rarely placed, which reduces interference between the mounting bracket and part of the weight side tilt suppression member and other components. EXAMPLES

[0055] Next, a second embodiment of the present invention will be described with reference to Fig. 3 to Fig. 7. Fig. 3 shows the hoist 16 as viewed from above, Fig. 4 shows an enlarged portion of part P in Fig. 3, Fig. 5 shows a side view as viewed from arrow C in Fig. 3, Fig. 6 shows a side view as viewed from arrow D in Fig. 5, and Fig. 7 shows the side and top of the weight-side mounting bracket.

[0056] In Figure 3, the guide rails to which the counterweight side mounting bracket 50 and the car side mounting bracket 41 are attached are the counterweight side guide rail 19A closer to the wall of the elevator shaft 12 adjacent to the hoisting machine 16, and the car side guide rail 20A adjacent to the hoisting machine 16.

[0057] In other words, the counterweight side guide rail 19A is a guide rail that exists between the hoisting machine 16 and the wall surface of the elevator shaft 12, and the car side guide rail 20A is a guide rail that is adjacent to the counterweight side guide rail 19B, which is located on the opposite side of the hoisting machine 16 to the counterweight side guide rail 19A.

[0058] Here, the other weight-side guide rail 19B, on which the mounting bracket 50 of the weight-side guide rail 19 is not provided, does not have a sufficient length in the height direction of the elevator shaft 12, as shown in Figure 9, so it is not possible to provide the weight-side mounting bracket 50 that supports the inclination of the hoisting machine 16.

[0059] In addition, the other car side guide rail 20B, on which the car side mounting bracket 41 is not provided, is far away from the hoisting machine 16, so it is not possible to provide a weight side mounting bracket 41 that supports the inclination of the hoisting machine 16.

[0060] Therefore, the weight side guide rail 19A to which the weight side mounting bracket 40 is attached is the guide rail on the higher side within the hoistway 12 (the guide rail located between the hoist and the wall of the hoistway on the side on which there is no car guide rail), and the car side guide rail 20A to which the car side mounting bracket 41 is attached is the guide rail on the side closer to the hoist 16 (the guide rail between the hoist and the wall of the hoistway on the side on which the weight side guide rail is located).

[0061] As in the first embodiment, a flat car-side mounting bracket 41 is fixed by welding or other method to the back surface of the car-side guide rail 20A opposite the rail main body 20Ab. This car-side mounting bracket 41 extends toward the side surface on the side where the sheave 17 of the hoisting machine 16 is present, and contacts the end surface of the hoisting machine 16 at a predetermined position via a vibration-isolating member 42. In this way, the car-side mounting bracket 41 is flat and also functions as a car-side inclination suppression member, and is sometimes referred to as a car-side inclination suppression member.

[0062] Therefore, the car-side mounting bracket 41 is flat and also functions as a car-side tilt suppressing member. Hereinafter, it may be referred to as a car-side tilt suppressing member. Also, the car-side mounting bracket 41 terminates before reaching the sheave 17 of the hoisting machine 16.

[0063] In this way, since the car side mounting bracket (=car side tilt suppressing member) 41 is flat and does not have any bent parts, the area occupied by the tilt suppressing member including the mounting bracket can be reduced.

[0064] Also, a counterweight-side mounting bracket 50 is fixed to the rail main body 19Ab of the counterweight-side guide rail 19A so as to sandwich the rail main body 19Ab. This counterweight-side mounting bracket 50 is composed of two mounting blocks 50A, 50B (see FIG. 4) that extend in a direction protruding from the rail main body 19Ab toward the hoist 16 side (a direction parallel to the line segment Lsw). The mounting blocks 50A and 50B are fixed to the rail main body 19Ab so as to sandwich the rail main body 19Ab from both side surfaces of the rail main body 19Ab.

[0065] Furthermore, a counterweight-side tilt suppressing member 51 is fixed to the hoisting machine 16 side of the mounting blocks 50A and 50B by a fixing bolt (see FIG. 4). The counterweight-side tilt suppressing member 51 has a flat area 51A and a flat area 51B that stands upright upward from the flat area 51A. The flat area 51A, which is a part of the counterweight-side tilt suppressing member 51, is disposed in the space formed between the counterweight-side guide rail 19A and the hoisting machine 16, similar to the counterweight-side mounting bracket 50.

[0066] The flat area 51B extends toward the side surface on which the sheave 17 of the hoisting machine 16 is located while maintaining parallelism with the line segment Lsw of the counterweight side guide rail 19, and contacts the end surface of the hoisting machine 16 via the vibration isolating member 52 at a predetermined position. The flat area 51B of the counterweight side inclination suppressing member 51 terminates before reaching the sheave 17 of the hoisting machine 16. The counterweight side mounting bracket 50 and the counterweight side inclination suppressing member 51 will be described in detail with reference to FIG. 4.

[0067] In this manner, the weight-side mounting bracket 50 of this embodiment is disposed in the space formed by the hoist 16 and the weight-side guide rail 19A. The space formed by the hoist 16 and the weight-side guide rail 19A is suitable as an occupied space for providing the weight-side mounting bracket 50, since elevator components and the like are rarely provided in the space.

[0068] Next, details of the weight-side mounting bracket 50 and the weight-side tilt suppressing member 51 will be described with reference to Fig. 4 to Fig. 6. Note that the hoisting machine 16 is not shown in Fig. 5.

[0069] In Fig. 4, the mounting blocks 50A and 50B constituting the weight-side mounting bracket 50 are fixed with fixing bolts 54 so as to sandwich the rail body 19Ab of the weight-side guide rail 19A from both sides. Therefore, the weight-side mounting bracket 50 can be attached to the weight-side guide rail 19A later. The mounting blocks 50A and 50B can be made of casting or the like.

[0070] A flat area 51A of the counterweight-side tilt suppression member 51 is fixed by a fixing bolt 55 to the end of the mounting block 50A and the mounting block 50B on the side different from the fixed portion to the guide rail. The flat area 51A is formed as a plane perpendicular to the extending direction of the counterweight-side guide rail 19A, and like the counterweight-side mounting bracket 50, the flat area 51A is disposed in the space formed between the hoist 16 and the counterweight-side guide rail 19A.

[0071] The weight-side tilt suppression member 51 has a flat area 51B formed therein that extends in a direction perpendicular to the flat area 51A and in the direction in which the weight-side guide rail 19A extends (upward), and a vibration-isolating member 52 is attached to a part of the flat area 51B.

[0072] Here, the planar area 51B of the weight-side tilt suppression member 51 and the planar area of ​​the car-side tilt suppression member 41 are in a so-called "flush" relationship in which their imaginary extension planes (planes parallel to the line segment Lsw) coincide with each other, and the planar area 51B of the weight-side tilt suppression member 51 and the planar area of ​​the car-side tilt suppression member 41 are configured so as not to protrude beyond the tip of the sheave 17. This makes it possible to reduce the occupied area and also to reduce the risk of interference with elevator components.

[0073] Next, the specific configuration of the mounting blocks 50A and 50B that constitute the weight-side mounting bracket 50 will be described with reference to Fig. 7. Since the mounting blocks 50A and 50B have the same configuration, only the mounting block 50A will be described here.

[0074] 7, (A) is a diagram of the mounting block 50A seen from above, and (B) is a diagram of the mounting block 50A seen from the side. Note that the top view here refers to the state in which the mounting block 50A is looked down on in the direction along the weight-side guide rail 19A.

[0075] The mounting block 50A is composed of a first fixing portion 56, an adjacent sandwiching portion 57, and an adjacent second fixing portion 58. The first fixing portion 56, the sandwiching portion 57, and the second fixing portion 58 are formed in a stepped shape, and respectively form a first fixing region Fpr, a sandwiching region Sd, and a second fixing region Fps.

[0076] At the end of the first fixing region Fpr, a pair of through holes 59 through which the fixing bolts 54 are inserted are formed, and the fixing bolts 54 are inserted into similar through holes formed in the other mounting block 50B, and in this state, the nuts are tightened. The fixing bolts 54 extend so as to pass through the back surface of the weight-side guide rail 19A.

[0077] Further, at the end side of the second fixing region Fps, insertion holes 60 through which a pair of fixing bolts 54 are inserted are formed, and the fixing bolts 54 are inserted into similar insertion holes formed in the other mounting block 50B, and in this state, nuts are tightened. The fixing bolts 54 extend so as to pass through the tip of the rail body 19Ab of the counterweight side guide rail 19A.

[0078] In order to firmly clamp the rail main body 19Ab by the clamping portion 57, the four fixing bolts 54 are configured to still have a tightening margin when the clamping portion 57 and the rail main body 19Ab are in contact with each other. In other words, the first fixing portion 56 and the second fixing portion 58 are configured not to contact the end face of the weight guide rail 19A. This allows the rail main body 19Ab to be firmly clamped by the clamping portion 57.

[0079] Furthermore, an insertion hole 61 through which the fixing bolt 55 is inserted is formed on the end side of the second fixing area Fps, and the fixing bolt 55 is inserted into the insertion hole formed in the planar area 51A of the car side tilt suppression member 51, and in this state, the nut is tightened.

[0080] As described above, according to the configuration of this embodiment, the car side mounting bracket (car side tilt suppression member), the weight side mounting bracket, and the weight side tilt suppression member can suppress the tilt phenomenon of the hoist caused by the load of the car and balancing weight acting on the sheave.

[0081] In addition, according to the configuration of this embodiment, at least the weight side mounting bracket and a portion of the weight side tilt suppression member are arranged in the space formed between the hoist and the guide rail, thereby reducing the area occupied by the tilt suppression member including the mounting bracket.

[0082] In addition, the space formed between the hoist and the guide rail is a space in which elevator components are rarely placed, which reduces interference between the mounting bracket and part of the weight side tilt suppression member and other components.

[0083] As described above, the present invention provides an elevator including a hoistway formed in a building, a car moving in the hoistway, a counterweight connected to the car via a main rope, a pair of car-side guide rails that guide the movement of the car and are arranged to sandwich the car from both sides, a pair of weight-side guide rails that guide the movement of the counterweight and are arranged to sandwich the counterweight from both sides, and a hoist around which the main rope is wound and which moves the car and the counterweight in different directions within the hoistway, the hoist being characterized in that the inclination of the hoistway caused by the load acting from the main rope is suppressed by a weight-side inclination suppression member including a weight-side mounting bracket attached to one guide rail (weight side) of the weight-side guide rail, and a car-side inclination suppression member including a car-side mounting bracket attached to one guide rail (car side) of the car-side guide rail, and at least a part of the weight-side mounting bracket and the weight-side inclination suppression member are disposed in a space formed between the guide rail (weight side) and the hoist.

[0084] According to this, the weight side mounting bracket and part of the weight side tilt suppression member are arranged in the space between the guide rail (weight side) and the hoist, thereby reducing the area occupied by the tilt suppression member including the mounting bracket and making it possible to suppress tilt of the hoist while avoiding interference with elevator components.

[0085] The present invention is not limited to the above-described embodiments, but includes various modified examples. The above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those having all of the configurations described. 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. It is also possible to add, delete, or replace other configurations with respect to the configuration of each embodiment. [Explanation of symbols]

[0086] 10...elevator, 11...building, 12...hoistway, 13...landing, 14...car, 15...counterweight, 16...hoisting machine, 17...sheave, 18...main rope, 19, 19A, 19B...counterweight side guide rail, 20, 20A, 20B...car side guide rail, 40...counterweight side mounting bracket, 41...car side mounting bracket, 50...counterweight side mounting bracket, 50A, 50B...mounting block, 54...fixing bolt, 55...fixing bolt.

Claims

1. An elevator comprising: a hoistway formed in a building; a car moving in the hoistway; a counterweight connected to the car via a main rope; a pair of car-side guide rails arranged to sandwich the car from both sides and guide the movement of the car; a pair of counterweight-side guide rails arranged to sandwich the counterweight from both sides and guide the movement of the counterweight; and a hoist around which the main rope is wound and which moves the car and the counterweight in different directions within the hoistway, The hoist is prevented from tilting due to the load acting from the main rope by a weight-side tilt suppressing member including a weight-side mounting bracket attached to one of the guide rails (weight side) of the weight-side guide rails, and a car-side tilt suppressing member including a car-side mounting bracket attached to one of the guide rails (car side) of the car-side guide rails, and At least a portion of the weight-side mounting bracket and the weight-side tilt suppressing member are disposed in a space in which the pair of weight-side guide rails face each other. An elevator characterized by:

2. In the elevator according to claim 1, The guide rail (weight side) is a guide rail on the weight side that is closer to the wall surface of the hoistway, and the guide rail (car side) is a guide rail on the car side that is closer to the hoist. An elevator characterized by:

3. In the elevator according to claim 2, The weight-side mounting bracket is attached to the rail body of the guide rail (weight side) and is disposed so as to extend in a direction toward the hoist. An elevator characterized by:

4. In the elevator according to claim 3, The rail body of the guide rail (spindle side) is formed in a direction protruding toward the hoist, The weight-side mounting bracket is attached to a side surface of the rail body, and the weight-side tilt suppressing member is fixed to the opposite side of the mounting portion of the weight-side mounting bracket, and the weight-side tilt suppressing member is in contact with the hoist. An elevator characterized by:

5. In the elevator according to claim 3, The rail body of the guide rail (spindle side) is formed in a direction protruding toward the hoist, The weight-side mounting bracket is composed of a pair of mounting blocks that sandwich and fix the rail body, and the weight-side tilt suppressing member is fixed to the opposite side of the mounting portions of the pair of mounting blocks, and the weight-side tilt suppressing member is in contact with the hoist. An elevator characterized by:

6. In the elevator according to claim 4 or 5, The car-side mounting bracket is attached to the back surface of the guide rail (car side) opposite to the rail body, and is disposed extending in a direction toward the hoisting machine, and is in contact with the hoisting machine so as to suppress inclination of the hoisting machine. An elevator characterized by:

7. In the elevator according to claim 6, The car-side mounting bracket is formed in a flat plate shape having the function of the car-side tilt suppressing member. An elevator characterized by:

8. In the elevator according to claim 6, The weight-side tilt suppressing member and the car-side tilt suppressing member are in contact with the hoisting machine via a vibration isolating member so as to suppress tilt. An elevator characterized by:

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