Adjustment jig of guide device of elevator and adjustment method of guide device

Abstract

To provide an adjustment jig of a guide device and adjustment method of the guide device which can perform alignment of the guide device easily.SOLUTION: An adjustment jig 40 for a guide device 5 which is installed on lower side of an emergency stop device 4, includes an adjustment plate 41 which is attached to an edge part of an upper surface plate 23 of the guide device 5 so as to make it possible to attach and detach, and adjustment bolts 43, 44 which screw with the adjustment plate 41 and abut to the emergency stop device 4.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an adjustment jig for an elevator guide device and a method for adjusting a guide device. [Background technology]

[0002] Generally, elevator cars are equipped with a guide device that guides the car along a guide rail. Furthermore, elevators are also equipped with an emergency stop device as a safety device that automatically stops the car when the speed of the car ascending or descending along the guide rail exceeds a specified value.

[0003] The safety device and guide device are then centered relative to the guide rail before being attached to the car. Patent Document 1, for example, describes a technique for centering a guide device during installation. Patent Document 1 describes a technique for selecting one of the fixed guide shoes as the guide shoe to be adjusted. Then, the bolts securing the guide shoe to be adjusted are loosened to temporarily secure it. After this, the counterweight is run for a predetermined distance. During this adjustment run step, the remaining fixed guide shoes remain secured to the counterweight. After this, the bolts are tightened to secure the guide shoe to be adjusted in the position it was in when the adjustment run step was completed (main fixation step). Similar procedures are performed for the remaining fixed guide shoes.

[0004] In addition, when the guide device is installed below the emergency stop device and the guide device is centered (aligned) with the guide rail, the centering work for the guide device is performed by abutting the adjustment bolt against the emergency stop device and adjusting the amount of tightening of the adjustment bolt. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-37547 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the conventional technology, the nut onto which the adjustment bolt is threaded must be attached to the guide device by a fixing method such as welding, which not only creates a risk of the adjustment bolt falling off, but also requires the work of welding the nut to the guide device, making the adjustment of the guide device extremely complicated.

[0007] In consideration of the above problems, an object of the present invention is to provide an adjustment jig for a guide device and an adjustment method for a guide device that can easily align the guide device. [Means for solving the problem]

[0008] In order to solve the above problems and achieve the present object, the adjustment jig for a guide device is an adjustment jig for a guide device that is installed below an emergency stop device that brakes the car and guides the car along a guide rail. The adjustment jig has an adjustment plate that is detachably attached to the edge of an upper plate that is superimposed on the underside of the support plate of the emergency stop device in the guide device, and an adjustment bolt that screws into the adjustment plate and abuts against the emergency stop device.

[0009] In addition, the method for adjusting an elevator guide device includes the steps shown in (1) to (4) below. (1) A process of temporarily fixing a guide device to the underside of a support plate of an emergency stop device. (2) A process of attaching an adjustment plate onto which an adjustment bolt that abuts against the safety device is screwed, to the edge of the upper plate of the guide device. (3) A process of adjusting the tightening amount of the adjustment bolt and aligning the guide device. (4) A process of finally fixing the guide device to the emergency stop device. [Effects of the Invention]

[0010] According to the adjusting jig for a guide device and the adjusting method for a guide device having the above-described configuration, the positioning of the guide device can be easily performed. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a perspective view showing an elevator car in which an adjustment jig according to an embodiment is used. FIG. [Figure 2] 1 is a front view showing a guide device and a safety device in which an adjustment jig according to an embodiment is used; [Figure 3] 1 is a perspective view showing a guide device and a safety device in a state before an adjustment jig according to an embodiment is installed; FIG. [Figure 4] 3 is a perspective view showing a guide device and a safety device in a state before an adjusting jig according to an embodiment is installed, seen from a different direction than in FIG. 2. [Figure 5] FIG. 1 is a perspective view showing an adjustment jig according to an embodiment. [Figure 6] FIG. 10 is a perspective view showing another example of the adjusting jig according to the embodiment. [Figure 7] 10A and 10B are explanatory diagrams showing a method of installing an adjustment jig according to an embodiment. [Figure 8] 1 is a perspective view showing a guide device and a safety device in a state where an adjustment jig according to an embodiment is installed; FIG. [Figure 9] 9 is a perspective view showing a guide device and a safety device showing a state in which an adjusting jig according to an embodiment is installed, seen from a different direction from FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of an adjusting jig for a guide device and an adjusting method for a guide device will be described with reference to Figures 1 to 9. Note that common members in the figures are given the same reference numerals.

[0013] 1. Example of implementation 1-1. Car configuration First, the configuration of a car in which an adjustment jig according to an embodiment (hereinafter referred to as "this example") is used will be described with reference to Figures 1 and 2. Figure 1 is a perspective view showing an elevator car.

[0014] An elevator car 1 shown in Figure 1 moves up and down in a hoistway formed within a building structure. The car 1 has a hollow, approximately rectangular parallelepiped car chamber 2, a car frame 3 that supports the car chamber 2, an emergency stop device 4, and a guide device 5. The emergency stop device 4 and the guide device 5 are installed at the lower end of the car frame 3 in the vertical direction. The guide device 5 is also installed at the upper end of the car frame 3 in the vertical direction. The guide device 5 guides the car 1 along a guide rail (not shown) that is erected within the hoistway. When the car 1 moves downward at a speed exceeding the rated speed, the emergency stop device 4 clamps the guide rail (not shown) and brings the car 1 to an emergency stop.

[0015] FIG. 2 is a front view showing the safety device 4 and the guide device 5. As shown in FIG. As shown in FIG. 2, the safety device 4 is installed at the top in the vertical direction of the guide device 5. The safety device 4 is configured to have a housing 11 and a brake shoe, a brake spring, etc. (not shown). A support plate 12 is provided at the bottom end of the housing 11 in the vertical direction. The support plate 12 supports the housing 11. The guide device 5 is fixed to the bottom side of the support plate 12 in the vertical direction. The safety device 4 is fixed to the car frame 3 after being centered (aligned) with a guide rail (not shown).

[0016] The guide device 5 has a plurality of guide rollers 21, a housing 22 that rotatably supports the guide rollers 21, and an upper surface plate 23. The upper surface plate 23 is provided at the upper end in the vertical direction of the housing 22. The support plate 12 of the safety device 4 is placed on the upper part of the upper surface plate 23 in the vertical direction.

[0017] Although a roller-type guide device having a plurality of guide rollers 21 is used as the guide device 5, the present invention is not limited to this. For example, a shoe-type guide device having a guide shoe that slides on a guide rail, or various other types of guide devices can be used as the guide device 5.

[0018] 3 and 4 are perspective views showing the guide device 5 and the safety device 4. FIG. 3 and 4, the support plate 12 of the safety device 4 and the top plate 23 of the guide device 5 are fastened together with fixing bolts 30. A plurality of fixing holes 23a are formed in the top plate 23, into which the fixing bolts 30 are inserted. Note that the support plate 12 of the safety device 4 also has fixing holes (not shown) formed therein, into which the fixing bolts 30 are inserted. The fixing holes 23a are formed on the back side, opposite to the front side of the safety device 4 and the guide device 5 that faces the guide rail. Then, the guide device 5 is aligned using adjustment jigs 40 and 40B, which will be described later, and then fixed to the safety device 4 with the fixing bolts 30.

[0019] Additionally, a plurality of engagement protrusions 24 are provided on the periphery of the top plate 23. The engagement protrusions 24 are provided in three locations on the top plate 23, excluding the opposing surface facing the guide rail. The engagement protrusions 24 are provided on two side surfaces on both sides of the top plate 23 in the width direction perpendicular to the opposing direction facing the guide rail, and on the back surface opposite the opposing surface facing the guide rail. Two engagement protrusions 24 are provided on each of the two side surfaces and the back surface. The two engagement protrusions 24 are arranged with a gap between them.

[0020] The engagement protrusions 24 protrude outward from the end of the top plate 23. The base end of the engagement protrusions 24 on the end side of the top plate 23 is narrowed. Therefore, the length of the base end of the engagement protrusions 24 in a direction perpendicular to the protruding direction is shorter than that of the tip end. The engagement protrusions 24 engage with engagement holes 42 of the adjustment jigs 40, 40B, which will be described later.

[0021] 1-2.Configuration of adjustment jig Next, the configuration of the adjusting jigs 40 and 40B will be described with reference to FIGS. 3 and 4, the adjustment jigs 40, 40B are installed on the two side surfaces and the rear surface of the upper plate 23 of the guide device 5. Furthermore, the side adjustment jig 40 is installed on the two side surfaces of the upper plate 23, and the rear adjustment jig 40B is installed on the rear surface of the upper plate 23.

[0022] Fig. 5 is a perspective view showing the side adjusting jig 40, and Fig. 6 is a perspective view showing the rear adjusting jig 40B. The side adjusting jig 40 and the rear adjusting jig 40B will be collectively referred to simply as the adjusting jig 40.

[0023] As shown in FIG. 5, the side adjustment jig 40 has an adjustment plate 41, a plurality of engagement holes 42, a first adjustment bolt 43, and a second adjustment bolt 44. The adjustment plate 41 is formed in a flat plate shape. The surface of the adjustment plate 41 is arranged parallel to the vertical direction. The adjustment plate also has a plurality of engagement holes 42 formed therein. The plurality of engagement holes 42 are formed at intervals in the longitudinal direction of the adjustment plate 41. The number and positions of the engagement holes 42 formed in the adjustment plate 41 correspond to the number and positions of the engagement protrusions 24 formed on the side and back portions of the top plate 23.

[0024] The opening width of the upper end of the engagement hole 42 is shorter than that of the lower end in the vertical direction. The opening width of the lower end of the engagement hole 42 is set to a length that allows the tip of the engagement protrusion 24 to be inserted. In addition, the opening width of the upper end of the engagement hole 42 is set to be longer than the base end of the engagement protrusion 24 and shorter than the tip of the engagement protrusion 24.

[0025] Furthermore, a plurality of first adjustment bolts 43 and second adjustment bolts 44 are threadedly engaged with the adjustment plate 41. The length of the shaft of the second adjustment bolt 44 is set shorter than the shaft of the first adjustment bolt 43. The tip of the shaft of the first adjustment bolt 43 abuts against the edge of the support plate 12 of the safety device 4. The tip of the shaft of the second adjustment bolt 44 abuts against the side surface of the housing 11 of the safety device 4.

[0026] 6, the rear side adjustment jig 40B has an adjustment plate 41, a plurality of engagement holes 42, and a first adjustment bolt 43. The configurations of the adjustment plate 41, the plurality of engagement holes 42, and the first adjustment bolt 43 are similar to those of the adjustment plate 41, the plurality of engagement holes 42, and the first adjustment bolt 43 of the side side adjustment jig 40, so a description thereof will be omitted. The rear side adjustment jig 40B has a configuration similar to that of the side side adjustment jig 40, except that the second adjustment bolt 44 is removed.

[0027] Here, the distance from the edge to the housing 11 on the rear side of the support plate 12 of the safety device 4 is set longer than on the side. Therefore, if the second adjustment bolt 44 is provided on the rear side adjustment jig 40B arranged on the rear side of the safety device 4 and the guide device 5, the second adjustment bolt 44 with a long shaft is required. For this reason, it is preferable to omit the second adjustment bolt 44 from the rear side adjustment jig 40B. Furthermore, the lengths of the shafts of the first adjustment bolt 43 and the second adjustment bolt 44 are set appropriately depending on the type of safety device 4. Therefore, if the distance from the edge on the rear side of the support plate 12 of the safety device 4 to the housing 11 is short, the second adjustment bolt 44 may be provided on the rear side adjustment jig 40B.

[0028] 2. How to adjust the guide device Next, a method for adjusting the guide device 5 will be described with reference to FIGS. Fig. 7 is an explanatory diagram showing a method for installing the adjusting jig 40. Figs. 8 and 9 are perspective views showing the guide device 5 and the safety device 4, showing the state in which the adjusting jigs 40 and 40B are installed.

[0029] First, the safety device 4 is centered relative to the guide rail, and the safety device 4 is fixed to the car frame 3. Next, the upper plate 23 of the guide device 5 is placed on the underside of the support plate 12 of the safety device 4. Then, the guide device 5 is temporarily fixed to the safety device 4 using the fixing bolt 30. Here, the opening diameter of the fixing hole of the safety device 4 or the fixing hole 23a of the guide device 5 is set larger than the outer diameter of the shaft of the fixing bolt 30. Therefore, in the temporarily fixed state, the guide device 5 can move in a direction parallel to the main surface of the support plate 12 of the safety device 4, i.e., in the horizontal direction.

[0030] Next, the adjustment jigs 40, 40B are attached to the top plate 23 of the guide device 5. As shown in FIG. 7, the engagement protrusion 24 is inserted into the lower end of the engagement hole 42 of the adjustment jig 40. Then, the adjustment plate 41 of the adjustment jig 40 is slid downward in the up-down direction. This causes the base end of the engagement protrusion 24 to be inserted into the upper end of the engagement hole 42, and the engagement protrusion 24 engages with the engagement hole 42. As a result, the adjustment plate 41 can be easily attached to the edge of the top plate 23 of the guide device 5.

[0031] The method for detachably attaching the adjustment plate 41 to the upper plate 23 is not limited to the engagement between the engagement protrusions 24 and the engagement holes 42, and various other methods such as magnetic attraction can be applied. The engagement between the engagement protrusions 24 and the engagement holes 42 suppresses an increase in the number of parts, and also makes it easy to process the adjustment jigs 40, 40B and the guide device 5.

[0032] As shown in FIGS. 8 and 9 , side adjustment jigs 40 are attached to each of the two side surfaces of the top plate 23, and a rear adjustment jig 40B is attached to the rear surface. That is, the adjustment jigs 40, 40B are attached to three locations on the guide device 5: on both sides in the width direction and on the rear surface in the opposing direction. The adjustment plates 41 of the adjustment jigs 40, 40B abut against the edges of the side surfaces and rear surface of the top plate 23 of the guide device 5. The first adjustment bolts 43 of the adjustment jigs 40, 40B abut against the edges of the support plate 12 of the safety device 4. The adjustment plates 41 of the adjustment jigs 40, 40B abut against the top plate 23 of the guide device 5. The second adjustment bolt 44 of the adjustment jig 40 abuts against the side surfaces of the housing 11 of the safety device 4.

[0033] Next, by adjusting the tightening amount of the first adjustment bolt 43 and the second adjustment bolt 44, the guide device 5 moves horizontally relative to the safety device 4. As described above, the adjustment jigs 40, 40B are attached to the guide device 5 at three locations: on both sides in the width direction and on the rear side in the opposing direction. Therefore, centering (position adjustment) of the guide device 5 with respect to the guide rail can be performed from three directions: on both sides in the width direction and on the rear side in the opposing direction.

[0034] Then, when the centering work of the guide device 5 is completed, the adjustment jigs 40, 40B are removed from the upper surface plate 23. Then, the fixing bolts 30 are tightened to finally fix the guide device 5 to the safety device 4. Through the above-mentioned steps, the adjustment work of the guide device 5 is completed. In this way, by using the adjustment jigs 40, 40B of this example, the adjustment work of the guide device 5 can be easily performed.

[0035] In this way, the first adjustment bolt 43 and the second adjustment bolt 44 are attached to the adjustment jigs 40 and 40B in advance. Therefore, the first adjustment bolt 43 and the second adjustment bolt 44 can be prevented from falling off during the adjustment work of the guide device 5.

[0036] Here, when the first adjustment bolt 43 and the second adjustment bolt 44 are attached later, a space equivalent to the length of the shafts of the first adjustment bolt 43 and the second adjustment bolt 44 is required around the guide device 5 and the safety device 4. In contrast, in the adjustment jigs 40 and 40B of this example, the first adjustment bolt 43 and the second adjustment bolt 44 are attached to the adjustment plate 41 in advance. This allows the adjustment jigs 40 and 40B to be installed on the guide device 5 even when the clearance around the guide device 5 and the safety device 4 is small.

[0037] Furthermore, there is no need to attach nuts to the guide device 5 by welding or the like to screw in the first adjustment bolt 43 and the second adjustment bolt 44. All that is required is to form the engagement protrusions 24 on the upper surface plate 23 of the guide device 5. This reduces the amount of time required for the work.

[0038] Furthermore, when a nut is provided on the guide device 5, the outer diameter of the safety device 4 and the components around the guide device 5 must take into consideration the nut provided on the guide device 5. In contrast, according to the adjustment jigs 40 and 40B of this example, it is not necessary to provide a nut on the guide device 5, and therefore the dimensions of the safety device 4 and the components around the guide device 5 are not affected.

[0039] The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the spirit of the invention as set forth in the claims.

[0040] Furthermore, the elevator configuration can be various types, including rope elevators such as 1:1 roping elevators and 2:1 roping elevators, hydraulic elevators, and other types of elevators.

[0041] In this specification, the words "parallel" and "orthogonal" are used, but these do not mean only "parallel" and "orthogonal" in the strict sense, but also include "parallel" and "orthogonal" and may also mean a "substantially parallel" or "substantially orthogonal" state within a range in which the functions can be exerted. [Explanation of symbols]

[0042] DESCRIPTION OF SYMBOLS 1...car, 2...cab room, 3...car frame, 4...emergency stop device, 5...guide device, 11...casing, 12...support plate, 21...guide roller, 22...casing, 23...upper plate, 23a...fixing hole, 24...engaging protrusion, 30...fixing bolt, 40...side adjustment jig (adjustment jig), 40B...rear adjustment jig (adjustment jig), 41...adjustment plate, 42...engagement hole, 43...first adjustment bolt, 44...second adjustment bolt

Claims

1. An adjustment jig for a guide device that is installed below an emergency stop device that brakes a car and guides the car along a guide rail, an adjustment plate detachably attached to an edge of an upper plate of the guide device that is superimposed on the lower side of the support plate of the safety device; an adjustment bolt that is screwed onto the adjustment plate and abuts against the safety device; An adjustment jig for an elevator guide device.

2. The adjustment plate is formed with an engagement hole that engages with the engagement protrusion formed on the support plate. An adjustment jig for an elevator guide device according to claim 1.

3. The tip of the shaft of the adjustment bolt abuts against the edge of the support plate of the safety device. An adjustment jig for an elevator guide device according to claim 1.

4. The adjustment bolt is a first adjustment bolt having a tip end of a shaft portion that abuts against an edge of the support plate of the safety device; a second adjustment bolt having a tip end of a shaft portion that abuts against a housing supported by the support plate of the safety device; An adjustment jig for an elevator guide device according to claim 1.

5. side adjustment jigs installed on two side surface portions on both sides in a width direction perpendicular to a direction in which the upper surface plate of the guide device faces the guide rail; a rear adjustment jig installed on the rear side of the upper plate of the guide device opposite to the front portion facing the guide rail. An adjustment jig for an elevator guide device according to claim 1.

6. a step of temporarily fixing a guide device to a lower side of a support plate of the safety device; a step of attaching an adjustment plate, onto which an adjustment bolt that abuts against the safety device is screwed, to an edge portion of an upper plate of the guide device; a step of adjusting the tightening amount of the adjustment bolt to align the guide device; a step of finally fixing the guide device to the safety device; A method for adjusting a guide device, comprising:

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