Fastening device for elevator guide rails

Abstract

The device includes two support components (210, 220). Each support component includes a vertical branch (211, 221) and a horizontal branch (212, 222) connected by two fastening points (P1, P2). Each fastening point includes a longitudinal opening (O21, O22) in each horizontal branch and a first fastening member (310) that vertically passes through the two longitudinal openings and enters a nest (213) supported on the horizontal branch. A second fastening member (320) extends horizontally into the nest and is operatively connected to the first fastening member via a power transmission device (330) within the nest. Rotation of the second fastening member creates a pressure connection between the two horizontal branches at the fastening point.

Description

Technical Field

[0001] The invention relates to a fastening device for elevator guide rails. Background Art

[0002] An elevator may include a car, a shaft, hoisting machinery, ropes, and a counterweight. A separate or integrated car frame may surround the car.

[0003] A hoisting machine may be located in the shaft. The hoisting machine may include a drive, a motor, a traction sheave, and a mechanical brake. The hoisting machine enables the car to move up and down the shaft. The mechanical brake stops the rotation of the traction sheave, thereby stopping the movement of the elevator car.

[0004] The car frame can be connected to the counterweight via a traction sheave by ropes. The car frame can also be supported by guide rails extending vertically in the shaft. The guide rails can be attached to the sidewall structure in the shaft via fastening brackets. The guide rails maintain the car's position in the horizontal plane as it moves upward and downward in the shaft. The counterweight can be supported in a corresponding manner on the guide rails attached to the shaft wall structure.

[0005] The car may transport people and / or freight between landings of a building.The wall structure of the shaft may be formed by solid walls or an open beam structure or any combination thereof.

[0006] The guide rail can be formed from guide rail elements of a certain length. During installation, the guide rail elements can be connected end-to-end in the elevator shaft, one after the other. The ends of the guide rail elements can be connected to each other using connecting plates or other locking devices. The guide rail can be attached to the wall of the elevator shaft using fastening brackets.

[0007] A prior art fastening bracket may include three bracket components. Two bracket components are L-shaped, with a vertical branch and a horizontal branch, and the third bracket component is straight. The horizontal branches of the L-shaped bracket components can be attached to each other at two first fastening points. Each first fastening point may include an opening in each horizontal branch and a first fastening member passing through these openings. One of the openings may be longitudinal in a first horizontal direction to allow the horizontal branches of the L-shaped bracket component to be adjusted relative to each other in the first longitudinal direction. The third bracket component can be attached to the vertical branch of the second bracket component at two second fastening points. Each second fastening point may include an opening in the vertical branch of the second bracket component and an opening in the third bracket component, and a second fastening member passing through these openings. One of the openings may be longitudinal in a second horizontal direction to allow the second and third bracket components to be adjusted relative to each other in the second longitudinal direction. Thus, the bracket components can be adjusted in two orthogonal horizontal directions to align the guide rail. The vertical branch of the first bracket component can be attached to a wall in the shaft. The guide rail can be attached to the third bracket component.

[0008] The first fastening point in this prior art fastening bracket is directed in the vertical direction and is located behind the vertical branch of the second bracket part. Therefore, access to the first fastening point is problematic.

[0009] EP 2993152 discloses a device and method for aligning guide rails in an elevator shaft. In the present application, the device disclosed in this prior art document can be used to align the guide rails. Summary of the Invention

[0010] It is an object of the present invention to provide an improved fastening device for elevator guide rails.

[0011] The fastening device for an elevator guide rail according to the invention is defined in claim 1 .

[0012] The fastening device includes:

[0013] Two bracket parts with width direction and vertical depth direction, each bracket part includes a vertical branch and a horizontal branch,

[0014] Two fastening points for attaching the horizontal branches of the two bracket parts to each other, each fastening point includes a first longitudinal opening extending in the width direction in the first horizontal branch, a second longitudinal opening extending in the depth direction in the second horizontal branch, and a first fastening member vertically passing through the two longitudinal openings.

[0015] The fastening device also includes:

[0016] A structure is formed of a nest supported on a first horizontal branch, such that a first fastening member extends vertically into the nest and a second fastening member extends horizontally into the nest, the first fastening member and the second fastening member being operatively connected to each other via a power transmission within the nest, whereby a rotation of the second fastening member about a longitudinal center axis of the second fastening member is transmitted in the power transmission to a vertical linear movement of the first fastening element, producing a pressure connection between the two horizontal branches of the two bracket parts at the fastening point.

[0017] The fastening device according to the present invention can be used in conjunction with both manually and automatically aligned guide rails. In the fastening device of the present invention, alignment of the guide rails can be achieved by simply loosening the second fastening member at each fastening point. Loosening the second fastening member at each fastening point allows the two bracket components to be adjusted relative to each other, aligning the guide rails in two orthogonal horizontal directions and further rotating relative to each other to adjust the guide rails' torsion.

[0018] The head of the second fastening member is located on the vertical front wall of the nest in the fastening points on both sides of the guide rail. Therefore, the head of the second fastening member is freely accessible in the horizontal direction, for example from a mounting platform that moves up and down in the shaft.

[0019] The new fastening device significantly speeds up manual alignment of the guide rail. Manual alignment can be performed by manually loosening and tightening the second fastening member and also manually aligning the guide rail. Another option is to manually loosen and tighten the second fastening member but automatically align the guide rail using an automatic alignment tool.

[0020] The new fastening device will make the alignment of the guide rails fully automated. An industrial robot can be used on the mounting platform to loosen and tighten the second fastening element at the fastening point. When the second fastening member has been loosened, an automatic alignment tool can be used to further align the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be described in more detail below by way of preferred embodiments with reference to the accompanying drawings, in which:

[0022] Figure 1 shows a side view of the elevator,

[0023] Figure 2 shows a horizontal cross section of an elevator,

[0024] Figure 3 shows a side view of a prior art fastening device for elevator guide rails,

[0025] Figure 4 shows a side view of a fastening device for an elevator guide rail according to the present invention,

[0026] Figure 5 shows a bottom view of a fastening device for elevator guide rails according to the present invention,

[0027] Figure 6 A first axonometric view showing a fastening device for an elevator guide rail according to the invention,

[0028] Figure 7 A second axonometric view of the inventive fastening device for elevator guide rails is shown. DETAILED DESCRIPTION

[0029] Figure 1 shows a side view of the elevator, Figure 2 A horizontal cross section of an elevator is shown.

[0030] The elevator may include a car 10, an elevator shaft 20, a hoisting machine 30, ropes 42, and a counterweight 41. A separate or integrated car frame 11 may surround the car 10.

[0031] A hoisting machine 30 may be located in the shaft 20. The hoisting machine may include a drive 31, a motor 32, a traction sheave 33, and a machinery brake 34. The hoisting machine 30 may move the car 10 upward and downward in the vertically extending elevator shaft 20 in a vertical direction Z. The machinery brake 34 may stop the rotation of the traction sheave 33, thereby stopping the movement of the elevator car 10.

[0032] The car frame 11 can be connected to a counterweight 41 via a traction sheave 33 via ropes 42. The car frame 11 can also be supported by guide means 27 on guide rails 25 extending in a vertical direction in the elevator shaft 20. The guide means 27 can include rollers that roll on the guide rails 25 or sliding shoes that slide on the guide rails 25 as the car 10 moves up and down in the elevator shaft 20. The guide rails 25 can be attached to the side wall structure 21 in the elevator shaft 20 using fastening brackets 26. As the car 10 moves up and down in the elevator shaft 20, the guide means 27 maintains the position of the car 10 in a horizontal plane. The counterweight 41 can be supported in a corresponding manner on the guide rails attached to the wall structure 21 of the elevator shaft 20.

[0033] The wall structure 21 of the shaft 20 can be formed from solid walls 21 or an open beam structure, or any combination thereof. Thus, one or more walls can be solid, and one or more walls can be formed from an open beam structure. The shaft 20 can include a front wall 21A, a rear wall 21B, and two opposing side walls 21C and 21D. There can be two guide rails 25 for the car 10. The two car guide rails 25 can be located on the opposing side walls 21C and 21D. There can also be two guide rails 25 for the counterweight 41. The two counterweight guide rails 25 can be located on the rear wall 21B.

[0034] The guide rail 25 can extend vertically along the height of the elevator shaft 20. Thus, the guide rail 25 can be formed from guide rail elements of a certain length, for example, 5 meters. The guide rail elements 25 can be installed one after another, end to end. Connecting plates can be used to attach the ends of the guide rail elements 25. The guide rail 25 can be attached to the wall 21 of the elevator shaft 20 using fastening brackets.

[0035] The car 10 may transport people and / or freight between landings of a building.

[0036] Figure 2 Plumb lines PL1 and PL2 are shown in shaft 20, which can be produced by plumbing shaft 20 at the beginning of elevator installation. Plumb lines PL1 and PL2 can be formed with conventional holes or with a light source, such as a laser with a beam directed upward along plumb lines PL1 and PL2. Typically, one plumb line and one gyroscope, or two plumb lines, are required as a global measurement reference in shaft 20.

[0037] Figure 1 The vertical direction Z is shown, ie the direction in which the car 10 moves in the elevator shaft 20 . Figure 2 A first horizontal direction X is shown, which is the direction between the side walls in the shaft 20, and a second horizontal direction Y is shown, which is the direction from the rear wall to the front wall in the shaft 20. The first horizontal direction X is perpendicular to the second horizontal direction Y. Both the first horizontal direction X and the second horizontal direction Y are perpendicular to the vertical direction Z.

[0038] Figure 3 A side view of a prior art fastening device for elevator guide rails is shown.

[0039] Directions X, Y, Z are shown in the figure in the case where fastening means are used to support the car guide rails on opposite side walls of the shaft 20.

[0040] The fastening device may include three bracket components 110, 120, 130. Two of the bracket components 110, 120 may have an L-shape with vertical branches 111, 121 and horizontal branches 112, 222. The vertical branch 111 of the first bracket component 110 may be attached to the wall 21 of the shaft 20 by a first fastening member 151 passing through a first hole O11 in the vertical branch 111 of the first bracket component 110. The horizontal branch 122 of the second bracket component 120 may be located on the horizontal branch 112 of the first bracket component 110.

[0041] The horizontal branch 112 of the first bracket component 110 and the horizontal branch 122 of the second bracket component 120 can be attached to each other at two first fastening points. Each first fastening point may include an opening O12, O13 in each of the horizontal branches 112, 122 and a third fastening member 153 extending through the opening O12, O13. The horizontal branch 112 of the first bracket component 110 may include a second longitudinal opening O12 extending in the first horizontal direction X. The horizontal branch 122 of the second bracket component 120 may include a third hole O13. When the third fastening member 153 is unlocked, the horizontal branch 122 of the second bracket component 120 can move relative to the horizontal branch 112 of the first bracket component 110 in the first horizontal direction X.

[0042] The third bracket component 130 and the vertical branch 121 of the second bracket component 120 can be attached to each other at two second fastening points. Each second fastening point can include openings O14, O15 in the vertical branch 121 of the second bracket component 120 and in the third bracket component 130, and a second fastening member 152 passing through the openings O14, O15. The vertical branch 121 of the second bracket component 120 can include a fourth longitudinal opening O14 extending in the second horizontal direction Y. The third bracket component 130 can include a fifth hole O15. When the second fastening member 152 is unlocked, the third bracket component 130 can move relative to the vertical branch 121 of the second bracket component 120 in the second horizontal direction Y.

[0043] The guide rail 25 may be attached to the third bracket component 130 by a fourth fastening member 154 passing through a sixth hole O16 in the third bracket component 130. A clip 140 may be used to attach the guide rail 25 to the third bracket component 130. Thus, the guide rail 25 is movable in the second horizontal direction Y relative to the second bracket component 120.

[0044] Thus, when third fastening member 153 is unlocked, first bracket component 110 and second bracket component 120 can be adjusted relative to each other in a first horizontal direction X, i.e., in the direction between guide rails DBG in shaft 20. Consequently, guide rail 25 can be adjusted in the direction between guide rails DBG. When second fastening member 152 is unlocked, guide rail 25 can be further adjusted in a second horizontal direction Y, i.e., in the direction from the rear to the front BTF in shaft 20. The twisting of guide rail 25 can be further adjusted by rotating horizontal branches 112, 122 relative to each other.

[0045] The third fastening member 153 operates in the vertical direction Z and is located behind the vertical branch 121 of the second bracket part 120. This makes adjustment of the bracket parts 110, 120 relative to each other in the second direction Y difficult and time-consuming. The position of the third fastening member 153 also makes automatic adjustment of the guide rail 25 difficult or even almost impossible.

[0046] The first, second, third and fourth fastening members 151, 152, 153, 154 may be formed by bolts provided with nuts. Thus, when the nuts are tightened against the bracket components 110, 120, 130 located between the heads and the nuts, a pressure connection is achieved between the heads of the bolts and the nuts.

[0047] Figure 4 A side view of a fastening device for an elevator guide rail according to the present invention is shown.

[0048] Directions X, Y, Z are shown in the figure in the case where fastening means are used to support the car guide rails on opposite side walls of the shaft 20.

[0049] The fastening device may include two bracket components 210, 220. Each bracket component 210, 220 may include vertical branches 211, 221 and horizontal branches 212, 222. The vertical branch 211 of the first bracket component 210 may be attached to the wall 21 of the shaft 20. This may be accomplished using bolts (not shown). The guide rail 25 may be attached to the vertical branch 221 of the second bracket component 220. The guide rail 25 may be attached to the vertical branch 221 of the second bracket component 220 using fastening members 410 and clips 420. The bracket components 210, 220 may have a width direction W and a vertical depth direction D. The vertical branch 211 of the first bracket component 210 may face the wall in the shaft 20 to which the vertical branch 211 of the first bracket component 210 is attached. The vertical branch 221 of the second bracket part 220 may face outward from a wall in the shaft 20 to which the vertical branch 211 of the first bracket part 210 is attached.

[0050] The horizontal branch 222 of the second bracket member 220 may be located on the horizontal branch 212 of the first bracket member 210 .

[0051] The horizontal branch 212 of the first bracket component 210 and the horizontal branch 222 of the second bracket component 220 can be attached to each other via at least two fastening points P1, P2. Each fastening point P1, P2 can include a longitudinal opening O21, O22 in each horizontal branch 212, 222 of the two bracket components 210, 220. The two longitudinal openings O21, O22 vertically extend through the corresponding horizontal branches 212, 222 of the two bracket components 210, 220. The first longitudinal opening O21 can be provided in the horizontal branch 212 of the first bracket component 210, and the second longitudinal opening O22 can be provided in the horizontal branch 222 of the second bracket component 220. The first longitudinal opening O21 can extend in the width direction W within the horizontal branch 212 of the first bracket component 210. The second longitudinal opening O22 can extend in the depth direction D within the horizontal branch 222 of the second bracket component 220. The first longitudinal opening O21 and the second longitudinal opening O22 can extend in the vertical direction.

[0052] The nesting piece 213 can be arranged to connect to the horizontal branch 212 of the first bracket component 210. The nesting piece 213 can be supported on the horizontal branch 212 of the first bracket component 210. The nesting piece 213 can include a front wall 213A extending vertically outward from the horizontal branch 212 of the first bracket component 210 and an outer wall 213B extending horizontally from the front wall 213A. A first end of the front wall 213A can be attached to the horizontal branch 212 of the first bracket component 210. A second, opposite end of the front wall 213A can be attached to a first end of the outer wall 213B. The outer wall 213B extends rearward from the second end of the front wall 213A toward the vertical branch 211 of the first bracket component 210. The front wall 213A and the outer wall 213B of the nesting piece 213 can be formed by bending the horizontal branch 212 of the first bracket component 210. A front wall 213A extends downward from the outer end of the horizontal branch 212 of the first bracket member 210, while an outer wall 213B extends rearward from the outer end of the front wall 213A. The nest 213 has the shape of a reclining letter U. The front wall 213A closes the front of the nest 213, but the sides and back of the nest 213 may be open. The front wall 213A of the nest 213 may face outward from the wall in the shaft 20 to which the vertical branch 211 of the first bracket member 210 is attached.

[0053] The first fastening member 310 can extend vertically through the longitudinal openings O21 and O22 in the horizontal branches 212 and 222 of the bracket components 210 and 220, and further into the nest 213. The first fastening member 310 can have a bolt shape. The first fastening member 310 can include a head 311 and a shank 312 having an outer end 313. The head 311 can be positioned on the upper surface of the horizontal branch 222 of the second bracket component 220. The shank 312 can extend from the head 311 to the outer wall 213B of the nest 213. The horizontal cross-section of the shank 312 can be circular. The outer end 313 of the shank 312 can extend into a fourth longitudinal slit O24 provided in the outer wall 213B of the nest 213. The horizontal cross-section of the outer end 313 of the shank 312 can be rectangular. The fourth longitudinal slit O24 can extend in the width direction W. The fourth longitudinal slit O24 can be formed by the fourth longitudinal opening O24 in the outer wall 213B of the nest 213. Another possibility is to form a fourth longitudinal slit O24 having two upwardly extending side walls on the horizontal bottom wall 213B. The two side walls would be parallel and extend in the width direction W. The fourth slit O24 would thus be formed between the two side walls. The outer wall 213B of the nest 213 could thus be solid.

[0054] The outer end 313 of the first fastening member 310 may be supported within the fourth longitudinal slit O24 in the outer wall 213B of the nest 213 so that the outer wall 213B of the nest 213 is movable along the fourth longitudinal slit O24 relative to the outer end 313 of the first fastening member 310. On the other hand, the outer end 313 of the first fastening member 310 is supported so as not to be movable in a direction perpendicular to the fourth longitudinal slit O24.

[0055] The shank 312 of the first fastening member 310 may include a wedge-shaped opening O30 extending horizontally through the shank 312 of the first fastening member 310. The wedge-shaped opening O30 may have a longitudinal shape with a first edge positioned adjacent to the outer wall 213B of the nest 213 and a second edge positioned within the longitudinal openings O21, O22 in the horizontal branches 212, 222 of the two bracket components 210, 220. The wedge-shaped opening O30 may extend along the longitudinal center axis of the first fastening member 310.

[0056] The second fastening member 320 may extend horizontally into the nest 213 through a third longitudinal opening O23 in the front wall 213A of the nest 213. The third longitudinal opening O23 may extend in the width direction W. The second fastening member 320 may be rotatably and movably supported on the vertical front wall 213A of the nest 213. This may be accomplished, for example, by washers placed on both sides of the vertical front wall 213A of the nest 213. The washers may be secured to the second fastening member 320. The second fastening member 320 may have a bolt shape. The second fastening member 320 may include a head 321 and a shank 322. At least the outer end of the shank 322 may be provided with external threads. Thus, the second fastening member 320 may rotate about the longitudinal center axis of the second fastening member 320. The nest 213 may move laterally in the width direction W relative to the second fastening member 320 along the third longitudinal opening O23.

[0057] A force transmission device 330 can be operatively connected to the second fastening member 320 and the first fastening member 310 within the nest 213. The force transmission device 330 can convert the rotational movement of the second fastening member 320 into a linear vertical movement of the first fastening member 310. The force transmission device 330 can be formed by a tightening element 330. When the second fastening member 320 is rotated about its longitudinal center axis, the tightening element 330 and the first fastening member 310 can generate a pressure connection between the horizontal branches 212, 222 of the two bracket parts 210, 220 at the tightening points P1, P2.

[0058] Rotation of the second fastening member 320 about the longitudinal center axis of the second fastening member 320 in a first direction pulls the tightening element 330 toward the front wall 213A of the nest 213, and rotation of the second fastening member 320 about the longitudinal center axis of the second fastening member 320 in a second, opposite direction pushes the tightening element 330 away from the front wall 213A of the nest 213.

[0059] The tightening element 330, also shown separately in the figure, can be formed as a wedge-shaped member comprising a first edge 331 and a second, opposite edge 332. The first edge 331 can be horizontal, and the second edge 332 can be inclined. The first edge 331 of the tightening member 330 abuts against the lower surface of the horizontal branch 212 of the first bracket component 210. The second edge 332 of the tightening element 330 abuts against the lower edge of the wedge-shaped opening O30 in the first fastening member 310. The second edge 332 of the wedge can have an inclination angle α1 in the range of 5 to 20 degrees, advantageously in the range of 5 to 10 degrees. An inclination angle α1 of 10 degrees means that a 10 mm horizontal movement of the wedge results in a 1.76 mm vertical movement of the first fastening element 310 (10*tan(10°)=1.76 mm). An inclination angle α1 of 5 degrees means that a 10 mm horizontal movement of the wedge results in a 0.87 mm vertical movement of the first fastening element 310 (10*tan(5°)=0.87 mm). The wedge acts as a power transmission device, whereby the force applied to the wedge by the second fastening member 320 is reinforced by the wedge acting on the first fastening member 310. The rotational movement of the second fastening member 320 is converted into linear movement of the wedge.

[0060] The tightening element 330 may include a connecting element 333 for connecting the tightening element 330 to the second fastening member 320. The connecting element 333 may include a hole having an internal thread that receives the external thread of the shank 322 of the second fastening member 320. Rotation of the second fastening member 320 about the longitudinal center axis of the second fastening member 320 in a first direction moves the tightening element 330 toward the front wall 213A of the nest 213 in the depth direction D, and rotation of the second fastening member 320 about the longitudinal center axis of the second fastening member 320 in a second, opposite direction pushes the tightening element 330 away from the front wall 213A of the nest 213 in the depth direction D. The connecting element 333 may form an integral part of the tightening element 330. Alternatively, the connecting element 333 may be formed as a separate part and connected to the tightening element 330.

[0061] The movement of the tightening element 330 in the second direction Y to the left in the figure pulls the first fastening member 310, and thus the horizontal branch 222 of the second bracket part 220, downward, and pushes the upper edge 331 of the wedge 330, and thus the horizontal branch 212 of the first bracket part 210, upward. Thus, the tightening element 330 acts as a nut on the first fastening member 310. The horizontal branches 212, 222 of the bracket parts 210, 220 are compressed between the head 311 of the first fastening member 310 and the upper edge 331 of the tightening element 330 at the fastening points P1, P2.

[0062] The tightening element 330 may alternatively be formed such that the first tightening element 310 passes through a longitudinal opening in the tightening element 330. In such an embodiment, the tightening element 330 may be formed from two pieces, whereby the ends of the two pieces would be attached to each other, and the longitudinal opening would be provided in the middle portion of the tightening element 330. The first tightening element 310 would then be provided with a flange near the outer end 313 of the first tightening element 310. A first upper edge of the tightening element 330 would abut against the lower surface of the first horizontal branch 211, and a second lower edge of the tightening element 330 would rest on the flange.

[0063] The bracket components 210, 220 can be used to support the car guide rails or counterweight guide rails. Therefore, when the first fastening member 310 is unlocked, the first bracket component 210 and the second bracket component 220 can be adjusted relative to each other in a first horizontal direction X, i.e., between the guide rails DBG in the shaft 20. Consequently, the guide rail 25 can be adjusted in the direction between the guide rails DBG. When the first fastening member 310 is unlocked, the guide rail 25 can be further adjusted in a second horizontal direction Y, i.e., from the rear to the front of the shaft 20. The twisting of the guide rail 25 can be further adjusted by rotating the horizontal branches 212, 222 relative to each other.

[0064] Figure 5 A bottom view of a fastening device for elevator guide rails according to the present invention is shown.

[0065] The figure shows the width direction W and the depth direction D of the two support members 210, 220. The width direction W extends in the second horizontal direction Y, i.e., between the rear and front walls of the shaft 20, and the depth direction extends in the first horizontal direction X, i.e., between the side walls of the shaft 20. This is the case when the support members 210, 220 are used to support car guide rails located on opposite side walls of the shaft 20. The situation is different when, for example, the support members 210, 220 are used to support a counterweight 41. The guide rails of the counterweight 41 can be located on the rear wall of the shaft 20 or on either or both side walls of the shaft 20.

[0066] When the bracket parts 210, 220 are used to support the guide rails of the counterweight 41 located on the rear wall of the shaft 20, the width direction W will extend in the first horizontal direction X, that is, in the direction between the side walls of the shaft 20, and the depth direction D will extend in the second horizontal direction Y, that is, in the direction between the rear wall and the front wall of the shaft 20.

[0067] The figure also shows that the bracket components 210 , 220 have a width W1 in the width direction W. The two bracket components 210 , 220 may have the same width W1 . The nest 213 may also have the same width W1 as the bracket components 210 , 220 .

[0068] The guide rail 25 has a T-shape, comprising a base branch 25A and a support branch 25B. The support branch 25B includes two opposing guide surfaces 25B1 and 25B2 on opposing vertical sides of the support branch 25B, and a guide surface 25B3 on the vertical front face of the support branch 25B. The guide rail 25 is attached from the base branch 25A to the vertical branch 221 of the second bracket component 220 using a horizontal fastening member 410 and a clip 420. The second fastening member 320 horizontally enters the nest 213 through the front wall 213A of the nest 213. The outer wall 213B of the nest 213 is provided with a fourth longitudinal slit O23 in the form of a longitudinal opening. The fourth longitudinal opening O24 extends in the second horizontal direction Y. The outer end 313 of the first fastening member 310 is supported in the fourth longitudinal opening O24.

[0069] Also shown in the figure are the horizontal branch 212 and the vertical branch 211 of the first bracket component 210 .

[0070] Figure 6 A first axonometric view showing a fastening device for an elevator guide rail according to the invention, Figure 7 A second axonometric view is shown.

[0071] The fastening device comprises two bracket components 210, 220. Each bracket component 210, 220 includes a vertical branch 211, 221 and a horizontal branch 212, 222. The vertical branch 211 of the first bracket component 210 can be attached to the wall of the shaft. This can be accomplished using bolts (not shown). The guide rail can be attached to the vertical branch 221 of the second bracket component 220 using a fastening member 410 and a clip 420.

[0072] The first fastening member 310 passes vertically in the Z direction through the vertical longitudinal openings O21 , O22 in the horizontal branches 212 , 222 of the bracket components 210 , 220 and further into the fourth longitudinal slit O24 in the outer wall 213B of the nest 213 .

[0073] The second fastening member 320 extends into the nest 213 in the horizontal direction X through the third longitudinal opening O23 in the front wall 213A of the nest 213 .

[0074] Due to the vertical longitudinal openings O21, O22 in the horizontal branches 212, 222 of the two bracket components 210, 220, the horizontal branches 212, 222 of the two bracket components 210, 220 can be laterally adjusted relative to each other in a first horizontal direction X and a second horizontal direction Y. To allow this lateral movement, longitudinal openings O23, O24 are also required in the nest 213. The nest 213 is attached to the horizontal branch 212 of the first bracket component 210 and moves with the first bracket component 210. The longitudinal openings O21, O23, O24 in the horizontal branch 212 of the first bracket component 210 and in the nest 213 are parallel and extend in the width direction W. Therefore, when the first fastening member 310 is unlocked, the first bracket component 210 and the nest 213 can move in the width direction W relative to the first and second fastening members 310, 320.

[0075] Adjustment of the horizontal branches 212, 222 of the two bracket components 210, 220 can thus be performed from the front of the bracket components 210, 220. The second fastening member 320 extends horizontally, providing direct horizontal access to the head 321 of the second fastening member 320 from the mounting platform that moves upward and downward in the shaft 20. Thus, the first fastening member 310 can be opened and closed simply by operating the second fastening member 320. Direct access to the first fastening member 310 is not required. The horizontal branches 212, 222 of the two bracket components 210, 220 can be adjusted from the mounting platform to achieve the correct position of the guide rail 25.

[0076] The guide rail is located at the middle portion in the width direction W of the vertical branch 221 of the second bracket part 220. The second fastening members 320 are located on both sides of the guide rail on the outside of the front wall 213A of the nest 213. Therefore, the second fastening members 320 can be freely accessed horizontally from the installation platform moving in the shaft.

[0077] The fastening device according to the present invention for fastening the guide rail 25 to the wall 21 in the shaft 20 can be used for both manual and automated alignment of the guide rail 25 in the shaft 20. Automated alignment can be performed partially manually, partially automatically, or fully automatically. The present invention significantly speeds up manual alignment of the guide rail. It also makes it possible to easily automate the alignment process. Prior art automated alignment tools can be used in conjunction with a robot that operates the second fastening member from a mounting platform.

[0078] Figure 4-7 The embodiment shown is an advantageous embodiment of the invention.

[0079] As a first alternative, you can modify Figure 4-7The configuration shown is such that the horizontal branch 222 of the second bracket component 220 is positioned below the horizontal branch 212 of the first bracket component 210. The horizontal branch 212 of the first bracket component 210 will then be straight. The nest 213 will be located below the horizontal branch 222 of the second bracket component 220. The nest 213 will be supported on the horizontal branch 222 of the second bracket component 220. The vertical front wall 213A of the nest 213 will extend downward from a point on the horizontal branch 222 of the second bracket component 220 near the vertical branch 221 of the second bracket component 220. The first longitudinal opening O21 in the horizontal branch 212 of the first bracket component 210 will extend in the depth direction D. The second longitudinal opening O22 in the horizontal branch 222 of the second bracket component 220 will extend in the width direction W.

[0080] As a second alternative, you can modify Figure 4-7 , the first and second bracket components 210, 220 are flipped. The vertical branch 211 of the first bracket component 210 will point upward, while the vertical branch 222 of the second bracket component 220 will point downward. The horizontal branch 212 of the first bracket component 210 will be positioned above the vertical branch 222 of the second bracket component 220. The first fastening member 310 will extend vertically upward through the longitudinal openings O21, O22 in the vertical branches 212, 222 to the nest 213 located above the first branch 212 of the first bracket component 220.

[0081] The second alternative can be further modified such that the horizontal branch 212 of the first bracket component 210 will be positioned below the horizontal branch 222 of the second bracket component 220. The nest 213 will then be formed in connection with the horizontal branch 222 of the second bracket component 220. The nest 213 will then be supported on the horizontal branch 222 of the second bracket component 220. The front wall 213A of the nest 213 will then extend upward from a point on the horizontal branch 222 of the second bracket component 220 near the vertical branch 221 of the second bracket component 220.

[0082] The vertical branches 211, 221 of the two bracket parts 210, 220 are Figure 4-7 The vertical branches 211 of the first bracket part 210 extend downward in the shaft 20, while the vertical branches 221 of the second bracket part 220 extend upward in the shaft 20. This is an advantageous embodiment, which allows easy access to the fastening means for fastening one vertical branch 211, 221 to the wall of the shaft 20 and for fastening the guide rail 25 to the opposite vertical branch 211, 221. However, the vertical branches 211, 221 of the two bracket parts 210, 220 can also extend in the same direction, that is, upward or downward in the shaft 20.

[0083] The bracket components 210, 220 can be made from a sheet material, such as metal. The starting point can be a straight sheet of metal of appropriate width and length. The sheet metal can then be bent into the desired shape, including the vertical branch 211 and the horizontal branch 221. Similarly, in embodiments in which the nest 213 is formed on the outer ends of the horizontal branches 211, 221 of the bracket components 210, 220, the nest 213 can be bent from the same sheet of metal. In other embodiments, the nest 213 can be formed as a separate part, whereby the vertical front wall 213A of the nest 213 can be attached to the horizontal branches 211, 221 of the bracket components 210, 220, for example, by welding.

[0084] The tightening element 330 may be made of a sheet material, such as metal.

[0085] The present invention may be used to secure car guide rails and counterweight guide rails to a wall 21 in a shaft 20 .

[0086] The use of the present invention is not limited to the elevator disclosed in the accompanying drawings. The present invention can be used in any type of elevator, for example, with or without a machine room, with or without a counterweight. The counterweight can be located on either or both side walls or on the rear wall of the elevator shaft. The drive, motor, traction sheave, and machinery brake can be located in the machine room or elsewhere in the elevator shaft. The car guide rails can be located on opposite side walls or on the rear wall of the shaft in a so-called rack-type elevator.

[0087] It is obvious to a person skilled in the art that, as technology advances, the inventive concept can be implemented in various ways.The invention and its embodiments are not limited to the examples described above, but may vary within the scope of the claims.

Claims

1. A fastening device for an elevator guide rail, the fastening device comprising: Two bracket parts (210, 220) having a width direction (W) and a vertical depth direction (D), each bracket part (210, 220) including a vertical branch (211, 221) and a horizontal branch (212, 222), two fastening points (P1, P2) of the horizontal branches (212, 222) of the two bracket components (210, 220) for attaching each other, each fastening point (P1, P2) comprising a first longitudinal opening (O21, O22) extending in a width direction (W) in the first horizontal branch (212, 222), a second longitudinal opening (O21, O22) extending in a depth direction (D) in the second horizontal branch (212, 222), and a first fastening member (310) vertically passing through the two longitudinal openings (O21, O22); It is characterized in that The structure forming the nest (213) is supported on the first horizontal branch (212, 222), so that the first fastening member (310) extends vertically into the nest (213) and the second fastening member (320) extends horizontally into the nest (213), and the first fastening member (310) and the second fastening member (320) are operably connected to each other via a power transmission device (330) within the nest (213), whereby the rotation of the second fastening member (320) around the longitudinal center axis of the second fastening member (320) is transmitted to the vertical linear movement of the first fastening element (310) via the power transmission device (330), and a pressure connection is generated at the fastening point (P1, P2) between the two horizontal branches (212, 222) of the two support parts (210, 220).

2. The fastening device according to claim 1, wherein: The structure forming the nest (213) includes a front wall (213A) extending vertically outward from the first horizontal branch (212, 222) and an outer wall (213B) extending horizontally from the front wall (213A), the second fastening member (320) horizontally enters the nest (213) through a third longitudinal opening (O23) extending in the width direction (W) in the front wall (213A) of the nest (213), and the second fastening member (320) is rotatably and movably supported in the front wall (213A) of the nest (213).

3. The fastening device according to claim 2, wherein: The outer end (330) of the first fastening member (310) is movably supported on the outer wall (213B) of the nest (213).

4. The fastening device according to any one of claims 1 to 3, wherein: The power transmission device (330) is formed by a tightening element (330) which is operatively connected to the first fastening member (310) and the second fastening member (320) within the nest (213).

5. The fastening device according to any one of claims 2 to 3, wherein: The outer wall (213B) in the nest (213) includes a fourth longitudinal slit (024) extending in the width direction (W), and the outer end (313) of the first fastening member (310) is supported in the fourth longitudinal slit (024).

6. The fastening device according to claim 5, characterized in that The fourth longitudinal slit (O24) in the outer wall (213B) of the nest (213) is formed by a fourth longitudinal opening.

7. The fastening device according to claim 4, wherein: The tightening element (330) is formed by a wedge arranged between the first horizontal branch (212, 222) and the outer end (313) of the first fastening member (310), whereby a movement of the wedge with the second fastening member (320) in the depth direction (D) causes the horizontal branches (212, 222) of the two bracket parts (210, 220) to be pressed together in a pressure connection between the first fastening member (310) and the wedge.

8. The fastening device according to claim 7, wherein: The wedge comprises a first edge resting against the first horizontal branch (212, 222) and a second, oppositely inclined edge resting against the outer end (313) of the first fastening member (310).

9. The fastening device according to claim 7, wherein: The first fastening member (310) comprises a head (311) and a handle (312), the handle (312) being provided with a longitudinal wedge-shaped opening (O30) for receiving the wedge, the longitudinal wedge-shaped opening (O30) having a first edge at a distance from the outer wall (213B) of the nest (213) and a second opposite edge within the longitudinal openings (O21, O22) in the horizontal branches (212, 222) of the two bracket parts (210, 220), wherein the second edge of the wedge abuts against the first edge of the wedge-shaped opening (O30).

10. The fastening device according to claim 7, wherein: The second fastening member (320) is supported on the front wall (313A) of the nest (213), and a washer is fixedly attached to the shank (322) of the second fastening member (320) on the opposite side of the front wall (213A) of the nest (213), at least the outer end of the shank (322) of the second fastening member (320) being provided with an external thread.

11. The fastening device according to claim 10, wherein: The tightening element (330) comprises a connecting element (333) for connecting the tightening element (330) to the second fastening member (320), the connecting element (333) comprising a hole with an internal thread, the internal thread receiving the external thread of the shank (322) of the second fastening member (320), whereby rotation of the second fastening member (320) causes the tightening element (330) to move in the depth direction (D).

12. The fastening device according to any one of claims 1 to 3, wherein: Each bracket component (210, 220) is made from a single sheet of material by bending.

13. The fastening device according to any one of claims 1 to 3, wherein: The vertical branches (212, 222) of the two bracket parts (210, 220) extend in opposite directions.

14. The fastening device according to any one of claims 1 to 3, wherein The two bracket components include a first bracket component (210) and a second bracket component (220), wherein the horizontal branch (212) of the first bracket component (210) is located below the horizontal branch (222) of the second bracket component (220).

15. The fastening device according to any one of claims 1 to 3, wherein The nest (213) is formed as an integral part of one of the horizontal branches (212, 222) of the two bracket parts (210, 220).

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